Publish 0.6.4

ICCCM 4.1.2.5 (https://tronche.com/gui/x/icccm/sec-4.html#WM_CLASS)
states that:

> This property must be present when the window leaves the Withdrawn
> state and may be changed only while the window is in the Withdrawn
> state.

Previously, we would first map the window, and then set these
properties, causing sadness for window managers (#167,
tomaka/glutin#879). This patch changes that by setting the class and
name attributes immediately after the window is created, and before it
is mapped.

Fixes #167.

.gitattributes

@@ -20,5 +20,3 @@
 *.PDF	 diff=astextplain
 *.rtf	 diff=astextplain
 *.RTF	 diff=astextplain
-
-/CHANGELOG.md merge=union

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,8 +0,0 @@
-- [ ] Tested on all platforms changed
-- [ ] Compilation warnings were addressed
-- [ ] `cargo fmt` has been run on this branch
-- [ ] `cargo doc` builds successfully
-- [ ] Added an entry to `CHANGELOG.md` if knowledge of this change could be valuable to users
-- [ ] Updated documentation to reflect any user-facing changes, including notes of platform-specific behavior
-- [ ] Created or updated an example program if it would help users understand this functionality
-- [ ] Updated [feature matrix](https://github.com/rust-windowing/winit/blob/master/FEATURES.md), if new features were added or implemented

.gitignore

@@ -1,11 +1,4 @@
 Cargo.lock
 target/
-rls/
-.vscode/
-.cargo/
-util/
 *~
-*.wasm
-*.ts
-*.js
 #*#

.gitmodules

@@ -1,3 +1,3 @@
 [submodule "deps/apk-builder"]
 	path = deps/apk-builder
-	url = https://github.com/rust-windowing/android-rs-glue
+	url = https://github.com/tomaka/android-rs-glue

.travis.yml

@@ -1,101 +1,30 @@
 language: rust
 
-matrix:
-  include:
-    # Linux 32bit
-    - env: TARGET=i686-unknown-linux-gnu
-      os: linux
-      rust: nightly
-      addons:
-        apt:
-          # Cross compiler and cross compiled C libraries
-          packages: &i686_packages
-            - gcc-multilib
-    - env: TARGET=i686-unknown-linux-gnu
-      os: linux
-      rust: stable
-      addons:
-        apt:
-          packages: *i686_packages
+rust:
+  - nightly
+  - stable
 
-    # Linux 64bit
-    - env: TARGET=x86_64-unknown-linux-gnu
-      os: linux
-      rust: nightly
-    - env: TARGET=x86_64-unknown-linux-gnu
-      os: linux
-      rust: stable
+cache: cargo
 
-    # macOS
-    - env: TARGET=x86_64-apple-darwin
-      os: osx
-      rust: nightly
-    - env: TARGET=x86_64-apple-darwin
-      os: osx
-      rust: stable
-
-    # iOS x86_64
-    - env: TARGET=x86_64-apple-ios
-      os: osx
-      rust: nightly
-    - env: TARGET=x86_64-apple-ios
-      os: osx
-      rust: stable
-
-    # iOS armv7
-    - env: TARGET=armv7-apple-ios
-      os: osx
-      rust: nightly
-    - env: TARGET=armv7-apple-ios
-      os: osx
-      rust: stable
-
-    # iOS arm64
-    - env: TARGET=aarch64-apple-ios
-      os: osx
-      rust: nightly
-    - env: TARGET=aarch64-apple-ios
-      os: osx
-      rust: stable
-
-    # wasm stdweb
-    - env: TARGET=wasm32-unknown-unknown WEB=web FEATURES=stdweb
-      os: linux
-      rust: stable
-    - env: TARGET=wasm32-unknown-unknown WEB=web FEATURES=stdweb
-      os: linux
-      rust: nightly
-    # wasm web-sys
-    - env: TARGET=wasm32-unknown-unknown FEATURES=web-sys
-      os: linux
-      rust: stable
-    - env: TARGET=wasm32-unknown-unknown FEATURES=web-sys
-      os: linux
-      rust: nightly
+addons:
+  apt:
+    packages:
+    - libxxf86vm-dev
 
 install:
-  - rustup self update
-  - rustup target add $TARGET; true
-  - rustup toolchain install stable
-  - rustup component add rustfmt --toolchain stable
+  - |
+      if [ $TRAVIS_OS_NAME = osx ]; then
+        rustup target add x86_64-apple-ios
+      fi
 
 script:
-  - cargo +stable fmt --all -- --check
-  # Ensure that the documentation builds properly.
-  - cargo doc --no-deps
-  # Install cargo-web to build stdweb
-  - if [[ $WEB = "web" ]]; then cargo install -f cargo-web; fi
-  # Build without serde then with serde
-  - if [[ -z "$FEATURES" ]]; then
-      cargo $WEB build --target $TARGET --verbose;
-    else
-      cargo $WEB build --target $TARGET --features $FEATURES --verbose;
-    fi
-  - cargo $WEB build --target $TARGET --features serde,$FEATURES --verbose
-  # Running iOS apps on macOS requires the Simulator so we skip that for now
-  # The web targets also don't support running tests
-  - if [[ $TARGET != *-apple-ios && $TARGET != wasm32-* ]]; then cargo test --target $TARGET --verbose; fi
-  - if [[ $TARGET != *-apple-ios && $TARGET != wasm32-* ]]; then cargo test --target $TARGET --features serde --verbose; fi
+  - cargo build --verbose
+  - if [ $TRAVIS_OS_NAME = osx ]; then cargo build --target x86_64-apple-ios --verbose; fi
+  - cargo test --verbose
+
+os:
+  - linux
+  - osx
 
 after_success:
   - |

CHANGELOG.md

@@ -1,497 +0,0 @@
-# Unreleased
-
-- On macOS, fix application termination on `ControlFlow::Exit`
-- On Windows, fix missing `ReceivedCharacter` events when Alt is held.
-- On macOS, stop emitting private corporate characters in `ReceivedCharacter` events.
-- On X11, fix misreporting DPI factor at startup.
-- On X11, fix events not being reported when using `run_return`.
-- On X11, fix key modifiers being incorrectly reported.
-- On X11, fix window creation hanging when another window is fullscreen.
-- On Windows, fix focusing unfocused windows when switching from fullscreen to windowed.
-
-# 0.20.0 Alpha 4 (2019-10-18)
-
-- Add web support via the 'stdweb' or 'web-sys' features
-- On Windows, implemented function to get HINSTANCE
-- On macOS, implement `run_return`.
-- On iOS, fix inverted parameter in `set_prefers_home_indicator_hidden`.
-- On X11, performance is improved when rapidly calling `Window::set_cursor_icon`.
-- On iOS, fix improper `msg_send` usage that was UB and/or would break if `!` is stabilized.
-- On Windows, unset `maximized` when manually changing the window's position or size.
-- On Windows, add touch pressure information for touch events.
-- On macOS, differentiate between `CursorIcon::Grab` and `CursorIcon::Grabbing`.
-- On Wayland, fix event processing sometimes stalling when using OpenGL with vsync.
-- Officially remove the Emscripten backend.
-- On Windows, fix handling of surrogate pairs when dispatching `ReceivedCharacter`.
-- On macOS 10.15, fix freeze upon exiting exclusive fullscreen mode.
-- On iOS, fix panic upon closing the app.
-- On X11, allow setting mulitple `XWindowType`s.
-- On iOS, fix null window on initial `HiDpiFactorChanged` event.
-- On Windows, fix fullscreen window shrinking upon getting restored to a normal window.
-- On macOS, fix events not being emitted during modal loops, such as when windows are being resized
-  by the user.
-- On Windows, fix hovering the mouse over the active window creating an endless stream of CursorMoved events.
-- Always dispatch a `RedrawRequested` event after creating a new window.
-- On X11, return dummy monitor data to avoid panicking when no monitors exist.
-- On X11, prevent stealing input focus when creating a new window.
-  Only steal input focus when entering fullscreen mode.
-- On Wayland, add support for set_cursor_visible and set_cursor_grab.
-- On Wayland, fixed DeviceEvents for relative mouse movement is not always produced.
-- Removed `derivative` crate dependency.
-- On Wayland, add support for set_cursor_icon.
-- Use `impl Iterator<Item = MonitorHandle>` instead of `AvailableMonitorsIter` consistently.
-- On macOS, fix fullscreen state being updated after entering fullscreen instead of before,
-  resulting in `Window::fullscreen` returning the old state in `Resized` events instead of
-  reflecting the new fullscreen state
-- On X11, fix use-after-free during window creation
-- On Windows, disable monitor change keyboard shortcut while in exclusive fullscreen.
-- On Windows, ensure that changing a borderless fullscreen window's monitor via keyboard shortcuts keeps the window fullscreen on the new monitor.
-- Prevent `EventLoop::new` and `EventLoop::with_user_event` from getting called outside the main thread.
-  - This is because some platforms cannot run the event loop outside the main thread. Preventing this
-    reduces the potential for cross-platform compatibility gotchyas.
-- On Windows and Linux X11/Wayland, add platform-specific functions for creating an `EventLoop` outside the main thread.
-- On Wayland, drop resize events identical to the current window size.
-
-# 0.20.0 Alpha 3 (2019-08-14)
-
-- On macOS, drop the run closure on exit.
-- On Windows, location of `WindowEvent::Touch` are window client coordinates instead of screen coordinates.
-- On X11, fix delayed events after window redraw.
-- On macOS, add `WindowBuilderExt::with_disallow_hidpi` to have the option to turn off best resolution openGL surface.
-- On Windows, screen saver won't start if the window is in fullscreen mode.
-- Change all occurrences of the `new_user_event` method to `with_user_event`.
-- On macOS, the dock and the menu bar are now hidden in fullscreen mode.
-- `Window::set_fullscreen` now takes `Option<Fullscreen>` where `Fullscreen`
-  consists of `Fullscreen::Exclusive(VideoMode)` and
-  `Fullscreen::Borderless(MonitorHandle)` variants.
-    - Adds support for exclusive fullscreen mode.
-- On iOS, add support for hiding the home indicator.
-- On iOS, add support for deferring system gestures.
-- On iOS, fix a crash that occurred while acquiring a monitor's name.
-- On iOS, fix armv7-apple-ios compile target.
-- Removed the `T: Clone` requirement from the `Clone` impl of `EventLoopProxy<T>`.
-- On iOS, disable overscan compensation for external displays (removes black
-  bars surrounding the image).
-- On Linux, the functions `is_wayland`, `is_x11`, `xlib_xconnection` and `wayland_display` have been moved to a new `EventLoopWindowTargetExtUnix` trait.
-- On iOS, add `set_prefers_status_bar_hidden` extension function instead of
-  hijacking `set_decorations` for this purpose.
-- On macOS and iOS, corrected the auto trait impls of `EventLoopProxy`.
-- On iOS, add touch pressure information for touch events.
-- Implement `raw_window_handle::HasRawWindowHandle` for `Window` type on all supported platforms.
-- On macOS, fix the signature of `-[NSView drawRect:]`.
-- On iOS, fix the behavior of `ControlFlow::Poll`. It wasn't polling if that was the only mode ever used by the application.
-- On iOS, fix DPI sent out by views on creation was `0.0` - now it gives a reasonable number.
-- On iOS, RedrawRequested now works for gl/metal backed views.
-- On iOS, RedrawRequested is generally ordered after EventsCleared.
-
-# 0.20.0 Alpha 2 (2019-07-09)
-
-- On X11, non-resizable windows now have maximize explicitly disabled.
-- On Windows, support paths longer than MAX_PATH (260 characters) in `WindowEvent::DroppedFile`
-and `WindowEvent::HoveredFile`.
-- On Mac, implement `DeviceEvent::Button`.
-- Change `Event::Suspended(true / false)` to `Event::Suspended` and `Event::Resumed`.
-- On X11, fix sanity check which checks that a monitor's reported width and height (in millimeters) are non-zero when calculating the DPI factor.
-- Revert the use of invisible surfaces in Wayland, which introduced graphical glitches with OpenGL (#835)
-- On X11, implement `_NET_WM_PING` to allow desktop environment to kill unresponsive programs.
-- On Windows, when a window is initially invisible, it won't take focus from the existing visible windows.
-- On Windows, fix multiple calls to `request_redraw` during `EventsCleared` sending multiple `RedrawRequested events.`
-- On Windows, fix edge case where `RedrawRequested` could be dispatched before input events in event loop iteration.
-- On Windows, fix timing issue that could cause events to be improperly dispatched after `RedrawRequested` but before `EventsCleared`.
-- On macOS, drop unused Metal dependency.
-- On Windows, fix the trail effect happening on transparent decorated windows. Borderless (or un-decorated) windows were not affected.
-- On Windows, fix `with_maximized` not properly setting window size to entire window.
-- On macOS, change `WindowExtMacOS::request_user_attention()` to take an `enum` instead of a `bool`.
-
-# 0.20.0 Alpha 1 (2019-06-21)
-
-- Changes below are considered **breaking**.
-- Change all occurrences of `EventsLoop` to `EventLoop`.
-- Previously flat API is now exposed through `event`, `event_loop`, `monitor`, and `window` modules.
-- `os` module changes:
-  - Renamed to `platform`.
-  - All traits now have platform-specific suffixes.
-  - Exposes new `desktop` module on Windows, Mac, and Linux.
-- Changes to event loop types:
-  - `EventLoopProxy::wakeup` has been removed in favor of `send_event`.
-  - **Major:** New `run` method drives winit event loop.
-    - Returns `!` to ensure API behaves identically across all supported platforms.
-      - This allows `emscripten` implementation to work without lying about the API.
-    - `ControlFlow`'s variants have been replaced with `Wait`, `WaitUntil(Instant)`, `Poll`, and `Exit`.
-      - Is read after `EventsCleared` is processed.
-      - `Wait` waits until new events are available.
-      - `WaitUntil` waits until either new events are available or the provided time has been reached.
-      - `Poll` instantly resumes the event loop.
-      - `Exit` aborts the event loop.
-    - Takes a closure that implements `'static + FnMut(Event<T>, &EventLoop<T>, &mut ControlFlow)`.
-      - `&EventLoop<T>` is provided to allow new `Window`s to be created.
-  - **Major:** `platform::desktop` module exposes `EventLoopExtDesktop` trait with `run_return` method.
-    - Behaves identically to `run`, but returns control flow to the calling context and can take non-`'static` closures.
-  - `EventLoop`'s `poll_events` and `run_forever` methods have been removed in favor of `run` and `run_return`.
-- Changes to events:
-  - Remove `Event::Awakened` in favor of `Event::UserEvent(T)`.
-    - Can be sent with `EventLoopProxy::send_event`.
-  - Rename `WindowEvent::Refresh` to `WindowEvent::RedrawRequested`.
-    - `RedrawRequested` can be sent by the user with the `Window::request_redraw` method.
-  - `EventLoop`, `EventLoopProxy`, and `Event` are now generic over `T`, for use in `UserEvent`.
-  - **Major:** Add `NewEvents(StartCause)`, `EventsCleared`, and `LoopDestroyed` variants to `Event`.
-    - `NewEvents` is emitted when new events are ready to be processed by event loop.
-      - `StartCause` describes why new events are available, with `ResumeTimeReached`, `Poll`, `WaitCancelled`, and `Init` (sent once at start of loop).
-    - `EventsCleared` is emitted when all available events have been processed.
-      - Can be used to perform logic that depends on all events being processed (e.g. an iteration of a game loop).
-    - `LoopDestroyed` is emitted when the `run` or `run_return` method is about to exit.
-- Rename `MonitorId` to `MonitorHandle`.
-- Removed `serde` implementations from `ControlFlow`.
-- Rename several functions to improve both internal consistency and compliance with Rust API guidelines.
-- Remove `WindowBuilder::multitouch` field, since it was only implemented on a few platforms. Multitouch is always enabled now.
-- **Breaking:** On macOS, change `ns` identifiers to use snake_case for consistency with iOS's `ui` identifiers.
-- Add `MonitorHandle::video_modes` method for retrieving supported video modes for the given monitor.
-- On Wayland, the window now exists even if nothing has been drawn.
-- On Windows, fix initial dimensions of a fullscreen window.
-- On Windows, Fix transparent borderless windows rendering wrong.
-
-- Improve event API documentation.
-- Overhaul device event API:
-  - **Breaking**: `Event::DeviceEvent` split into `MouseEvent`, `KeyboardEvent`, and `GamepadEvent`.
-  - **Breaking**: Remove `DeviceEvent::Text` variant.
-  - **Breaking**: `DeviceId` split into `MouseId`, `KeyboardId`, and `GamepadHandle`.
-  - **Breaking**: Removed device IDs from `WindowEvent` variants.
-  - Add `enumerate` function on device ID types to list all attached devices of that type.
-  - Add `is_connected` function on device ID types check if the specified device is still available.
-  - **Breaking**: On Windows, rename `DeviceIdExtWindows` to `DeviceExtWindows`.
-    - Add `handle` function to retrieve the underlying `HANDLE`.
-- On Windows, fix duplicate device events getting sent if Winit managed multiple windows.
-- On Windows, raw mouse events now report Mouse4 and Mouse5 presses and releases.
-- Added gamepad support on Windows via raw input and XInput.
-
-# Version 0.19.1 (2019-04-08)
-
-- On Wayland, added a `get_wayland_display` function to `EventsLoopExt`.
-- On Windows, fix `CursorMoved(0, 0)` getting dispatched on window focus.
-- On macOS, fix command key event left and right reverse.
-- On FreeBSD, NetBSD, and OpenBSD, fix build of X11 backend.
-- On Linux, the numpad's add, subtract and divide keys are now mapped to the `Add`, `Subtract` and `Divide` virtual key codes
-- On macOS, the numpad's subtract key has been added to the `Subtract` mapping
-- On Wayland, the numpad's home, end, page up and page down keys are now mapped to the `Home`, `End`, `PageUp` and `PageDown` virtual key codes
-- On Windows, fix icon not showing up in corner of window.
-- On X11, change DPI scaling factor behavior. First, winit tries to read it from "Xft.dpi" XResource, and uses DPI calculation from xrandr dimensions as fallback behavior.
-
-# Version 0.19.0 (2019-03-06)
-
-- On X11, we will use the faster `XRRGetScreenResourcesCurrent` function instead of `XRRGetScreenResources` when available.
-- On macOS, fix keycodes being incorrect when using a non-US keyboard layout.
-- On Wayland, fix `with_title()` not setting the windows title
-- On Wayland, add `set_wayland_theme()` to control client decoration color theme
-- Added serde serialization to `os::unix::XWindowType`.
-- **Breaking:** Remove the `icon_loading` feature and the associated `image` dependency.
-- On X11, make event loop thread safe by replacing XNextEvent with select(2) and XCheckIfEvent
-- On Windows, fix malformed function pointer typecast that could invoke undefined behavior.
-- Refactored Windows state/flag-setting code.
-- On Windows, hiding the cursor no longer hides the cursor for all Winit windows - just the one `hide_cursor` was called on.
-- On Windows, cursor grabs used to get perpetually canceled when the grabbing window lost focus. Now, cursor grabs automatically get re-initialized when the window regains focus and the mouse moves over the client area.
-- On Windows, only vertical mouse wheel events were handled. Now, horizontal mouse wheel events are also handled.
-- On Windows, ignore the AltGr key when populating the `ModifersState` type.
-
-# Version 0.18.1 (2018-12-30)
-
-- On macOS, fix `Yen` (JIS) so applications receive the event.
-- On X11 with a tiling WM, fixed high CPU usage when moving windows across monitors.
-- On X11, fixed panic caused by dropping the window before running the event loop.
-- on macOS, added `WindowExt::set_simple_fullscreen` which does not require a separate space
-- Introduce `WindowBuilderExt::with_app_id` to allow setting the application ID on Wayland.
-- On Windows, catch panics in event loop child thread and forward them to the parent thread. This prevents an invocation of undefined behavior due to unwinding into foreign code.
-- On Windows, fix issue where resizing or moving window combined with grabbing the cursor would freeze program.
-- On Windows, fix issue where resizing or moving window would eat `Awakened` events.
-- On Windows, exiting fullscreen after entering fullscreen with disabled decorations no longer shrinks window.
-- On X11, fixed a segfault when using virtual monitors with XRandR.
-- Derive `Ord` and `PartialOrd` for `VirtualKeyCode` enum.
-- On Windows, fix issue where hovering or dropping a non file item would create a panic.
-- On Wayland, fix resizing and DPI calculation when a `wl_output` is removed without sending a `leave` event to the `wl_surface`, such as disconnecting a monitor from a laptop.
-- On Wayland, DPI calculation is handled by smithay-client-toolkit.
-- On X11, `WindowBuilder::with_min_dimensions` and `WindowBuilder::with_max_dimensions` now correctly account for DPI.
-- Added support for generating dummy `DeviceId`s and `WindowId`s to better support unit testing.
-- On macOS, fixed unsoundness in drag-and-drop that could result in drops being rejected.
-- On macOS, implemented `WindowEvent::Refresh`.
-- On macOS, all `MouseCursor` variants are now implemented and the cursor will no longer reset after unfocusing.
-- Removed minimum supported Rust version guarantee.
-
-# Version 0.18.0 (2018-11-07)
-
-- **Breaking:** `image` crate upgraded to 0.20. This is exposed as part of the `icon_loading` API.
-- On Wayland, pointer events will now provide the current modifiers state.
-- On Wayland, titles will now be displayed in the window header decoration.
-- On Wayland, key repetition is now ended when keyboard loses focus.
-- On Wayland, windows will now use more stylish and modern client side decorations.
-- On Wayland, windows will use server-side decorations when available.
-- **Breaking:** Added support for F16-F24 keys (variants were added to the `VirtualKeyCode` enum).
-- Fixed graphical glitches when resizing on Wayland.
-- On Windows, fix freezes when performing certain actions after a window resize has been triggered. Reintroduces some visual artifacts when resizing.
-- Updated window manager hints under X11 to v1.5 of [Extended Window Manager Hints](https://specifications.freedesktop.org/wm-spec/wm-spec-1.5.html#idm140200472629520).
-- Added `WindowBuilderExt::with_gtk_theme_variant` to X11-specific `WindowBuilder` functions.
-- Fixed UTF8 handling bug in X11 `set_title` function.
-- On Windows, `Window::set_cursor` now applies immediately instead of requiring specific events to occur first.
-- On Windows, the `HoveredFile` and `HoveredFileCancelled` events are now implemented.
-- On Windows, fix `Window::set_maximized`.
-- On Windows 10, fix transparency (#260).
-- On macOS, fix modifiers during key repeat.
-- Implemented the `Debug` trait for `Window`, `EventsLoop`, `EventsLoopProxy` and `WindowBuilder`.
-- On X11, now a `Resized` event will always be generated after a DPI change to ensure the window's logical size is consistent with the new DPI.
-- Added further clarifications to the DPI docs.
-- On Linux, if neither X11 nor Wayland manage to initialize, the corresponding panic now consists of a single line only.
-- Add optional `serde` feature with implementations of `Serialize`/`Deserialize` for DPI types and various event types.
-- Add `PartialEq`, `Eq`, and `Hash` implementations on public types that could have them but were missing them.
-- On X11, drag-and-drop receiving an unsupported drop type can no longer cause the WM to freeze.
-- Fix issue whereby the OpenGL context would not appear at startup on macOS Mojave (#1069).
-- **Breaking:** Removed `From<NSApplicationActivationPolicy>` impl from `ActivationPolicy` on macOS.
-- On macOS, the application can request the user's attention with `WindowExt::request_user_attention`.
-
-# Version 0.17.2 (2018-08-19)
-
-- On macOS, fix `<C-Tab>` so applications receive the event.
-- On macOS, fix `<Cmd-{key}>` so applications receive the event.
-- On Wayland, key press events will now be repeated.
-
-# Version 0.17.1 (2018-08-05)
-
-- On X11, prevent a compilation failure in release mode for versions of Rust greater than or equal to 1.30.
-- Fixed deadlock that broke fullscreen mode on Windows.
-
-# Version 0.17.0 (2018-08-02)
-
-- Cocoa and core-graphics updates.
-- Fixed thread-safety issues in several `Window` functions on Windows.
-- On MacOS, the key state for modifiers key events is now properly set.
-- On iOS, the view is now set correctly. This makes it possible to render things (instead of being stuck on a black screen), and touch events work again.
-- Added NetBSD support.
-- **Breaking:** On iOS, `UIView` is now the default root view. `WindowBuilderExt::with_root_view_class` can be used to set the root view objective-c class to `GLKView` (OpenGLES) or `MTKView` (Metal/MoltenVK).
-- On iOS, the `UIApplication` is not started until `Window::new` is called.
-- Fixed thread unsafety with cursor hiding on macOS.
-- On iOS, fixed the size of the `JmpBuf` type used for `setjmp`/`longjmp` calls. Previously this was a buffer overflow on most architectures.
-- On Windows, use cached window DPI instead of repeatedly querying the system. This fixes sporadic crashes on Windows 7.
-
-# Version 0.16.2 (2018-07-07)
-
-- On Windows, non-resizable windows now have the maximization button disabled. This is consistent with behavior on macOS and popular X11 WMs.
-- Corrected incorrect `unreachable!` usage when guessing the DPI factor with no detected monitors.
-
-# Version 0.16.1 (2018-07-02)
-
-- Added logging through `log`. Logging will become more extensive over time.
-- On X11 and Windows, the window's DPI factor is guessed before creating the window. This *greatly* cuts back on unsightly auto-resizing that would occur immediately after window creation.
-- Fixed X11 backend compilation for environments where `c_char` is unsigned.
-
-# Version 0.16.0 (2018-06-25)
-
-- Windows additionally has `WindowBuilderExt::with_no_redirection_bitmap`.
-- **Breaking:** Removed `VirtualKeyCode::LMenu` and `VirtualKeyCode::RMenu`; Windows now generates `VirtualKeyCode::LAlt` and `VirtualKeyCode::RAlt` instead.
-- On X11, exiting fullscreen no longer leaves the window in the monitor's top left corner.
-- **Breaking:** `Window::hidpi_factor` has been renamed to `Window::get_hidpi_factor` for better consistency. `WindowEvent::HiDPIFactorChanged` has been renamed to `WindowEvent::HiDpiFactorChanged`. DPI factors are always represented as `f64` instead of `f32` now.
-- The Windows backend is now DPI aware. `WindowEvent::HiDpiFactorChanged` is implemented, and `MonitorId::get_hidpi_factor` and `Window::hidpi_factor` return accurate values.
-- Implemented `WindowEvent::HiDpiFactorChanged` on X11.
-- On macOS, `Window::set_cursor_position` is now relative to the client area.
-- On macOS, setting the maximum and minimum dimensions now applies to the client area dimensions rather than to the window dimensions.
-- On iOS, `MonitorId::get_dimensions` has been implemented and both `MonitorId::get_hidpi_factor` and `Window::get_hidpi_factor` return accurate values.
-- On Emscripten, `MonitorId::get_hidpi_factor` now returns the same value as `Window::get_hidpi_factor` (it previously would always return 1.0).
-- **Breaking:** The entire API for sizes, positions, etc. has changed. In the majority of cases, winit produces and consumes positions and sizes as `LogicalPosition` and `LogicalSize`, respectively. The notable exception is `MonitorId` methods, which deal in `PhysicalPosition` and `PhysicalSize`. See the documentation for specifics and explanations of the types. Additionally, winit automatically conserves logical size when the DPI factor changes.
-- **Breaking:** All deprecated methods have been removed. For `Window::platform_display` and `Window::platform_window`, switch to the appropriate platform-specific `WindowExt` methods. For `Window::get_inner_size_points` and `Window::get_inner_size_pixels`, use the `LogicalSize` returned by `Window::get_inner_size` and convert as needed.
-- HiDPI support for Wayland.
-- `EventsLoop::get_available_monitors` and `EventsLoop::get_primary_monitor` now have identical counterparts on `Window`, so this information can be acquired without an `EventsLoop` borrow.
-- `AvailableMonitorsIter` now implements `Debug`.
-- Fixed quirk on macOS where certain keys would generate characters at twice the normal rate when held down.
-- On X11, all event loops now share the same `XConnection`.
-- **Breaking:** `Window::set_cursor_state` and `CursorState` enum removed in favor of the more composable `Window::grab_cursor` and `Window::hide_cursor`. As a result, grabbing the cursor no longer automatically hides it; you must call both methods to retain the old behavior on Windows and macOS. `Cursor::NoneCursor` has been removed, as it's no longer useful.
-- **Breaking:** `Window::set_cursor_position` now returns `Result<(), String>`, thus allowing for `Box<Error>` conversion via `?`.
-
-# Version 0.15.1 (2018-06-13)
-
-- On X11, the `Moved` event is no longer sent when the window is resized without changing position.
-- `MouseCursor` and `CursorState` now implement `Default`.
-- `WindowBuilder::with_resizable` implemented for Windows, X11, Wayland, and macOS.
-- `Window::set_resizable` implemented for Windows, X11, Wayland, and macOS.
-- On X11, if the monitor's width or height in millimeters is reported as 0, the DPI is now 1.0 instead of +inf.
-- On X11, the environment variable `WINIT_HIDPI_FACTOR` has been added for overriding DPI factor.
-- On X11, enabling transparency no longer causes the window contents to flicker when resizing.
-- On X11, `with_override_redirect` now actually enables override redirect.
-- macOS now generates `VirtualKeyCode::LAlt` and `VirtualKeyCode::RAlt` instead of `None` for both.
-- On macOS, `VirtualKeyCode::RWin` and `VirtualKeyCode::LWin` are no longer switched.
-- On macOS, windows without decorations can once again be resized.
-- Fixed race conditions when creating an `EventsLoop` on X11, most commonly manifesting as "[xcb] Unknown sequence number while processing queue".
-- On macOS, `CursorMoved` and `MouseInput` events are only generated if they occurs within the window's client area.
-- On macOS, resizing the window no longer generates a spurious `MouseInput` event.
-
-# Version 0.15.0 (2018-05-22)
-
-- `Icon::to_cardinals` is no longer public, since it was never supposed to be.
-- Wayland: improve diagnostics if initialization fails
-- Fix some system event key doesn't work when focused, do not block keyevent forward to system on macOS
-- On X11, the scroll wheel position is now correctly reset on i3 and other WMs that have the same quirk.
-- On X11, `Window::get_current_monitor` now reliably returns the correct monitor.
-- On X11, `Window::hidpi_factor` returns values from XRandR rather than the inaccurate values previously queried from the core protocol.
-- On X11, the primary monitor is detected correctly even when using versions of XRandR less than 1.5.
-- `MonitorId` now implements `Debug`.
-- Fixed bug on macOS where using `with_decorations(false)` would cause `set_decorations(true)` to produce a transparent titlebar with no title.
-- Implemented `MonitorId::get_position` on macOS.
-- On macOS, `Window::get_current_monitor` now returns accurate values.
-- Added `WindowBuilderExt::with_resize_increments` to macOS.
-- **Breaking:** On X11, `WindowBuilderExt::with_resize_increments` and `WindowBuilderExt::with_base_size` now take `u32` values rather than `i32`.
-- macOS keyboard handling has been overhauled, allowing for the use of dead keys, IME, etc. Right modifier keys are also no longer reported as being left.
-- Added the `Window::set_ime_spot(x: i32, y: i32)` method, which is implemented on X11 and macOS.
-- **Breaking**: `os::unix::WindowExt::send_xim_spot(x: i16, y: i16)` no longer exists. Switch to the new `Window::set_ime_spot(x: i32, y: i32)`, which has equivalent functionality.
-- Fixed detection of `Pause` and `Scroll` keys on Windows.
-- On Windows, alt-tabbing while the cursor is grabbed no longer makes it impossible to re-grab the cursor.
-- On Windows, using `CursorState::Hide` when the cursor is grabbed now ungrabs the cursor first.
-- Implemented `MouseCursor::NoneCursor` on Windows.
-- Added `WindowBuilder::with_always_on_top` and `Window::set_always_on_top`. Implemented on Windows, macOS, and X11.
-- On X11, `WindowBuilderExt` now has `with_class`, `with_override_redirect`, and `with_x11_window_type` to allow for more control over window creation. `WindowExt` additionally has `set_urgent`.
-- More hints are set by default on X11, including `_NET_WM_PID` and `WM_CLIENT_MACHINE`. Note that prior to this, the `WM_CLASS` hint was automatically set to whatever value was passed to `with_title`. It's now set to the executable name to better conform to expectations and the specification; if this is undesirable, you must explicitly use `WindowBuilderExt::with_class`.
-
-# Version 0.14.0 (2018-05-09)
-
-- Created the `Copy`, `Paste` and `Cut` `VirtualKeyCode`s and added support for them on X11 and Wayland
-- Fix `.with_decorations(false)` in macOS
-- On Mac, `NSWindow` and supporting objects might be alive long after they were `closed` which resulted in apps consuming more heap then needed. Mainly it was affecting multi window applications. Not expecting any user visible change of behaviour after the fix.
-- Fix regression of Window platform extensions for macOS where `NSFullSizeContentViewWindowMask` was not being correctly applied to `.fullsize_content_view`.
-- Corrected `get_position` on Windows to be relative to the screen rather than to the taskbar.
-- Corrected `Moved` event on Windows to use position values equivalent to those returned by `get_position`. It previously supplied client area positions instead of window positions, and would additionally interpret negative values as being very large (around `u16::MAX`).
-- Implemented `Moved` event on macOS.
-- On X11, the `Moved` event correctly use window positions rather than client area positions. Additionally, a stray `Moved` that unconditionally accompanied `Resized` with the client area position relative to the parent has been eliminated; `Moved` is still received alongside `Resized`, but now only once and always correctly.
-- On Windows, implemented all variants of `DeviceEvent` other than `Text`. Mouse `DeviceEvent`s are now received even if the window isn't in the foreground.
-- `DeviceId` on Windows is no longer a unit struct, and now contains a `u32`. For `WindowEvent`s, this will always be 0, but on `DeviceEvent`s it will be the handle to that device. `DeviceIdExt::get_persistent_identifier` can be used to acquire a unique identifier for that device that persists across replugs/reboots/etc.
-- Corrected `run_forever` on X11 to stop discarding `Awakened` events.
-- Various safety and correctness improvements to the X11 backend internals.
-- Fixed memory leak on X11 every time the mouse entered the window.
-- On X11, drag and drop now works reliably in release mode.
-- Added `WindowBuilderExt::with_resize_increments` and `WindowBuilderExt::with_base_size` to X11, allowing for more optional hints to be set.
-- Rework of the wayland backend, migrating it to use [Smithay's Client Toolkit](https://github.com/Smithay/client-toolkit).
-- Added `WindowBuilder::with_window_icon` and `Window::set_window_icon`, finally making it possible to set the window icon on Windows and X11. The `icon_loading` feature can be enabled to allow for icons to be easily loaded; see example program `window_icon.rs` for usage.
-- Windows additionally has `WindowBuilderExt::with_taskbar_icon` and `WindowExt::set_taskbar_icon`.
-- On Windows, fix panic when trying to call `set_fullscreen(None)` on a window that has not been fullscreened prior.
-
-# Version 0.13.1 (2018-04-26)
-
-- Ensure necessary `x11-dl` version is used.
-
-# Version 0.13.0 (2018-04-25)
-
-- Implement `WindowBuilder::with_maximized`, `Window::set_fullscreen`, `Window::set_maximized` and `Window::set_decorations` for MacOS.
-- Implement `WindowBuilder::with_maximized`, `Window::set_fullscreen`, `Window::set_maximized` and `Window::set_decorations` for Windows.
-- On Windows, `WindowBuilder::with_fullscreen` no longer changing monitor display resolution.
-- Overhauled X11 window geometry calculations. `get_position` and `set_position` are more universally accurate across different window managers, and `get_outer_size` actually works now.
-- Fixed SIGSEGV/SIGILL crashes on macOS caused by stabilization of the `!` (never) type.
-- Implement `WindowEvent::HiDPIFactorChanged` for macOS
-- On X11, input methods now work completely out of the box, no longer requiring application developers to manually call `setlocale`. Additionally, when input methods are started, stopped, or restarted on the server end, it's correctly handled.
-- Implemented `Refresh` event on Windows.
-- Properly calculate the minimum and maximum window size on Windows, including window decorations.
-- Map more `MouseCursor` variants to cursor icons on Windows.
-- Corrected `get_position` on macOS to return outer frame position, not content area position.
-- Corrected `set_position` on macOS to set outer frame position, not content area position.
-- Added `get_inner_position` method to `Window`, which gets the position of the window's client area. This is implemented on all applicable platforms (all desktop platforms other than Wayland, where this isn't possible).
-- **Breaking:** the `Closed` event has been replaced by `CloseRequested` and `Destroyed`. To migrate, you typically just need to replace all usages of `Closed` with `CloseRequested`; see example programs for more info. The exception is iOS, where `Closed` must be replaced by `Destroyed`.
-
-# Version 0.12.0 (2018-04-06)
-
-- Added subclass to macos windows so they can be made resizable even with no decorations.
-- Dead keys now work properly on X11, no longer resulting in a panic.
-- On X11, input method creation first tries to use the value from the user's `XMODIFIERS` environment variable, so application developers should no longer need to manually call `XSetLocaleModifiers`. If that fails, fallbacks are tried, which should prevent input method initialization from ever outright failing.
-- Fixed thread safety issues with input methods on X11.
-- Add support for `Touch` for win32 backend.
-- Fixed `Window::get_inner_size` and friends to return the size in pixels instead of points when using HIDPI displays on OSX.
-
-# Version 0.11.3 (2018-03-28)
-
-- Added `set_min_dimensions` and `set_max_dimensions` methods to `Window`, and implemented on Windows, X11, Wayland, and OSX.
-- On X11, dropping a `Window` actually closes it now, and clicking the window's × button (or otherwise having the WM signal to close it) will result in the window closing.
-- Added `WindowBuilderExt` methods for macos: `with_titlebar_transparent`,
-  `with_title_hidden`, `with_titlebar_buttons_hidden`,
-  `with_fullsize_content_view`.
-- Mapped X11 numpad keycodes (arrows, Home, End, PageUp, PageDown, Insert and Delete) to corresponding virtual keycodes
-
-# Version 0.11.2 (2018-03-06)
-
-- Impl `Hash`, `PartialEq`, and `Eq` for `events::ModifiersState`.
-- Implement `MonitorId::get_hidpi_factor` for MacOS.
-- Added method `os::macos::MonitorIdExt::get_nsscreen() -> *mut c_void` that gets a `NSScreen` object matching the monitor ID.
-- Send `Awakened` event on Android when event loop is woken up.
-
-# Version 0.11.1 (2018-02-19)
-
-- Fixed windows not receiving mouse events when click-dragging the mouse outside the client area of a window, on Windows platforms.
-- Added method `os::android::EventsLoopExt:set_suspend_callback(Option<Box<Fn(bool) -> ()>>)` that allows glutin to register a callback when a suspend event happens
-
-# Version 0.11.0 (2018-02-09)
-
-- Implement `MonitorId::get_dimensions` for Android.
-- Added method `os::macos::WindowBuilderExt::with_movable_by_window_background(bool)` that allows to move a window without a titlebar - `with_decorations(false)`
-- Implement `Window::set_fullscreen`, `Window::set_maximized` and `Window::set_decorations` for Wayland.
-- Added `Caret` as VirtualKeyCode and support OSX ^-Key with german input.
-
-# Version 0.10.1 (2018-02-05)
-
-*Yanked*
-
-# Version 0.10.0 (2017-12-27)
-
-- Add support for `Touch` for emscripten backend.
-- Added support for `DroppedFile`, `HoveredFile`, and `HoveredFileCancelled` to X11 backend.
-- **Breaking:** `unix::WindowExt` no longer returns pointers for things that aren't actually pointers; `get_xlib_window` now returns `Option<std::os::raw::c_ulong>` and `get_xlib_screen_id` returns `Option<std::os::raw::c_int>`. Additionally, methods that previously returned `libc::c_void` have been changed to return `std::os::raw::c_void`, which are not interchangeable types, so users wanting the former will need to explicitly cast.
-- Added `set_decorations` method to `Window` to allow decorations to be toggled after the window is built. Presently only implemented on X11.
-- Raised the minimum supported version of Rust to 1.20 on MacOS due to usage of associated constants in new versions of cocoa and core-graphics.
-- Added `modifiers` field to `MouseInput`, `MouseWheel`, and `CursorMoved` events to track the modifiers state (`ModifiersState`).
-- Fixed the emscripten backend to return the size of the canvas instead of the size of the window.
-
-# Version 0.9.0 (2017-12-01)
-
-- Added event `WindowEvent::HiDPIFactorChanged`.
-- Added method `MonitorId::get_hidpi_factor`.
-- Deprecated `get_inner_size_pixels` and `get_inner_size_points` methods of `Window` in favor of
-`get_inner_size`.
-- **Breaking:** `EventsLoop` is `!Send` and `!Sync` because of platform-dependant constraints,
-  but `Window`, `WindowId`, `DeviceId` and `MonitorId` guaranteed to be `Send`.
-- `MonitorId::get_position` now returns `(i32, i32)` instead of `(u32, u32)`.
-- Rewrite of the wayland backend to use wayland-client-0.11
-- Support for dead keys on wayland for keyboard utf8 input
-- Monitor enumeration on Windows is now implemented using `EnumDisplayMonitors` instead of
-`EnumDisplayDevices`. This changes the value returned by `MonitorId::get_name()`.
-- On Windows added `MonitorIdExt::hmonitor` method
-- Impl `Clone` for `EventsLoopProxy`
-- `EventsLoop::get_primary_monitor()` on X11 will fallback to any available monitor if no primary is found
-- Support for touch event on wayland
-- `WindowEvent`s `MouseMoved`, `MouseEntered`, and `MouseLeft` have been renamed to
-`CursorMoved`, `CursorEntered`, and `CursorLeft`.
-- New `DeviceEvent`s added, `MouseMotion` and `MouseWheel`.
-- Send `CursorMoved` event after `CursorEntered` and `Focused` events.
-- Add support for `ModifiersState`, `MouseMove`, `MouseInput`, `MouseMotion` for emscripten backend.
-
-# Version 0.8.3 (2017-10-11)
-
-- Fixed issue of calls to `set_inner_size` blocking on Windows.
-- Mapped `ISO_Left_Tab` to `VirtualKeyCode::Tab` to make the key work with modifiers
-- Fixed the X11 backed on 32bit targets
-
-# Version 0.8.2 (2017-09-28)
-
-- Uniformize keyboard scancode values accross Wayland and X11 (#297).
-- Internal rework of the wayland event loop
-- Added method `os::linux::WindowExt::is_ready`
-
-# Version 0.8.1 (2017-09-22)
-
-- Added various methods to `os::linux::EventsLoopExt`, plus some hidden items necessary to make
-  glutin work.
-
-# Version 0.8.0 (2017-09-21)
-
-- Added `Window::set_maximized`, `WindowAttributes::maximized` and `WindowBuilder::with_maximized`.
-- Added `Window::set_fullscreen`.
-- Changed `with_fullscreen` to take a `Option<MonitorId>` instead of a `MonitorId`.
-- Removed `MonitorId::get_native_identifer()` in favor of platform-specific traits in the `os`
-  module.
-- Changed `get_available_monitors()` and `get_primary_monitor()` to be methods of `EventsLoop`
-  instead of stand-alone methods.
-- Changed `EventsLoop` to be tied to a specific X11 or Wayland connection.
-- Added a `os::linux::EventsLoopExt` trait that makes it possible to configure the connection.
-- Fixed the emscripten code, which now compiles.
-- Changed the X11 fullscreen code to use `xrandr` instead of `xxf86vm`.
-- Fixed the Wayland backend to produce `Refresh` event after window creation.
-- Changed the `Suspended` event to be outside of `WindowEvent`.
-- Fixed the X11 backend sometimes reporting the wrong virtual key (#273).

CONTRIBUTING.md

@@ -1,42 +0,0 @@
-# Winit Contributing Guidelines
-
-## Scope
-[See `FEATURES.md`](./FEATURES.md). When requesting or implementing a new Winit feature, you should
-consider whether or not it's directly related to window creation or input handling. If it isn't, it
-may be worth creating a separate crate that extends Winit's API to add that functionality.
-
-
-## Reporting an issue
-
-When reporting an issue, in order to help the maintainers understand what the problem is, please make
-your description of the issue as detailed as possible:
-
-- if it is a bug, please provide clear explanation of what happens, what should happen, and how to
-  reproduce the issue, ideally by providing a minimal program exhibiting the problem
-- if it is a feature request, please provide a clear argumentation about why you believe this feature
-  should be supported by winit
-
-## Making a pull request
-
-When making a code contribution to winit, before opening your pull request, please make sure that:
-
-- you tested your modifications on all the platforms impacted, or if not possible detail which platforms
-  were not tested, and what should be tested, so that a maintainer or another contributor can test them
-- you updated any relevant documentation in winit
-- you left comments in your code explaining any part that is not straightforward, so that the
-  maintainers and future contributors don't have to try to guess what your code is supposed to do
-- your PR adds an entry to the changelog file if the introduced change is relevant to winit users
-- if your PR affects the platform compatibility of one or more features or adds another feature, the
-  relevant sections in [`FEATURES.md`](https://github.com/rust-windowing/winit/blob/master/FEATURES.md#features)
-  should be updated.
-
-Once your PR is open, you can ask for review by a maintainer of your platform. Winit's merging policy
-is that a PR must be approved by at least two maintainers of winit before being merged, including
-at least a maintainer of the platform (a maintainer making a PR themselves counts as approving it).
-
-## Maintainers & Testers
-
-The current [list of testers and contributors](https://github.com/rust-windowing/winit/wiki/Testers-and-Contributors)
-can be found on the Wiki.
-
-If you are interested in contributing or testing on a platform, please add yourself to that table!

Cargo.toml

@@ -1,137 +1,43 @@
 [package]
 name = "winit"
-version = "0.20.0-alpha4"
-authors = ["The winit contributors", "Pierre Krieger <pierre.krieger1708@gmail.com>"]
+version = "0.6.4"
+authors = ["The winit contributors, Pierre Krieger <pierre.krieger1708@gmail.com>"]
 description = "Cross-platform window creation library."
-edition = "2018"
 keywords = ["windowing"]
 license = "Apache-2.0"
 readme = "README.md"
-repository = "https://github.com/rust-windowing/winit"
+repository = "https://github.com/tomaka/winit"
 documentation = "https://docs.rs/winit"
 categories = ["gui"]
 
-[package.metadata.docs.rs]
-features = ["serde"]
-
-[features]
-web-sys = ["web_sys", "wasm-bindgen", "instant/wasm-bindgen"]
-stdweb = ["std_web", "instant/stdweb"]
-
 [dependencies]
-instant = "0.1"
-lazy_static = "1"
-libc = "0.2.64"
-log = "0.4"
-serde = { version = "1", optional = true, features = ["serde_derive"] }
-raw-window-handle = "0.3"
-
-[dev-dependencies]
-image = "0.21"
-env_logger = "0.5"
+lazy_static = "0.2.2"
+libc = "0.2"
+shared_library = "0.1.5"
 
 [target.'cfg(target_os = "android")'.dependencies.android_glue]
 version = "0.2"
 
 [target.'cfg(target_os = "ios")'.dependencies]
-objc = "0.2.3"
+objc = "0.2"
 
 [target.'cfg(target_os = "macos")'.dependencies]
-cocoa = "0.19.1"
-core-foundation = "0.6"
-core-graphics = "0.17.3"
-dispatch = "0.1.4"
-objc = "0.2.3"
+objc = "0.2"
+cgl = "0.2"
+cocoa = "=0.5.2"
+core-foundation = "0.2"
+core-graphics = "0.4"
 
-[target.'cfg(target_os = "macos")'.dependencies.core-video-sys]
-version = "0.1.3"
-default_features = false
-features = ["display_link"]
+[target.'cfg(target_os = "windows")'.dependencies]
+winapi = "0.2"
+shell32-sys = "0.1"
+gdi32-sys = "0.1"
+user32-sys = "~0.1.2"
+kernel32-sys = "0.2"
+dwmapi-sys = "0.1"
 
-[target.'cfg(any(target_os = "ios", target_os = "windows"))'.dependencies]
-bitflags = "1"
-rusty-xinput = "1.0"
-
-[target.'cfg(target_os = "windows")'.dependencies.winapi]
-version = "0.3.6"
-features = [
-    "combaseapi",
-    "commctrl",
-    "dwmapi",
-    "errhandlingapi",
-    "hidpi",
-    "hidusage",
-    "libloaderapi",
-    "objbase",
-    "ole2",
-    "processthreadsapi",
-    "shellapi",
-    "shellscalingapi",
-    "shobjidl_core",
-    "unknwnbase",
-    "winbase",
-    "windowsx",
-    "winerror",
-    "wingdi",
-    "winnt",
-    "winuser",
-    "xinput",
-]
-
-[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd", target_os = "netbsd"))'.dependencies]
-wayland-client = { version = "0.23.0", features = [ "dlopen", "egl", "cursor", "eventloop"] }
-calloop = "0.4.2"
-smithay-client-toolkit = "0.6"
-x11-dl = "2.18.3"
-percent-encoding = "2.0"
-
-[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd", target_os = "netbsd", target_os = "windows"))'.dependencies.parking_lot]
-version = "0.10"
-
-[target.'cfg(target_arch = "wasm32")'.dependencies.web_sys]
-package = "web-sys"
-version = "0.3.22"
-optional = true
-features = [
-    'console',
-    'BeforeUnloadEvent',
-    'Document',
-    'DomRect',
-    'Element',
-    'Event',
-    'EventTarget',
-    'FocusEvent',
-    'HtmlCanvasElement',
-    'HtmlElement',
-    'KeyboardEvent',
-    'MouseEvent',
-    'Node',
-    'Navigator',
-    'PointerEvent',
-    'Window',
-    'WheelEvent',
-    'Gamepad',
-    'GamepadAxisMoveEvent',
-    'GamepadAxisMoveEventInit',
-    'GamepadButton',
-    'GamepadButtonEvent',
-    'GamepadButtonEventInit',
-    'GamepadEvent',
-    'GamepadEventInit',
-    'GamepadHand',
-    'GamepadHapticActuator',
-    'GamepadHapticActuatorType',
-    'GamepadMappingType',
-    'GamepadPose',
-    'GamepadServiceTest'
-]
-
-[target.'cfg(target_arch = "wasm32")'.dependencies.wasm-bindgen]
-version = "0.2.45"
-optional = true
-
-[target.'cfg(target_arch = "wasm32")'.dependencies.std_web]
-package = "stdweb"
-version = "=0.4.20"
-optional = true
-features = ["experimental_features_which_may_break_on_minor_version_bumps"]
+[target.'cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))'.dependencies]
+wayland-client = { version = "0.8.6", features = ["dlopen"] }
+wayland-kbd = "0.8.0"
+wayland-window = "0.5.0"
+x11-dl = "2.8"

FEATURES.md

@@ -1,231 +0,0 @@
-# Winit Scope
-
-Winit aims to expose an interface that abstracts over window creation and input handling, and can
-be used to create both games and applications. It supports the main graphical platforms:
-- Desktop
-  - Windows
-  - macOS
-  - Unix
-    - via X11
-    - via Wayland
-- Mobile
-  - iOS
-  - Android
-- Web
-  - via WASM
-
-Most platforms expose capabilities that cannot be meaningfully transposed onto others. Winit does not
-aim to support every single feature of every platform, but rather to abstract over the common features
-available everywhere. In this context, APIs exposed in winit can be split into different "support tiers":
-
-- **Core:** Features that are essential to providing a well-formed abstraction over each platform's
-  windowing and input APIs.
-- **Platform:** Platform-specific features that can't be meaningfully exposed through a common API and
-  cannot be implemented outside of Winit without exposing a significant amount of Winit's internals
-  or interfering with Winit's abstractions.
-- **Usability:** Features that are not strictly essential to Winit's functionality, but provide meaningful
-  usability improvements and cannot be reasonably implemented in an external crate. These are
-  generally optional and exposed through Cargo features.
-
-Core features are taken care of by the core Winit maintainers. Platform features are not.
-When a platform feature is submitted, the submitter is considered the expert in the
-feature and may be asked to support the feature should it break in the future.
-
-Winit ***does not*** directly expose functionality for drawing inside windows or creating native
-menus, but ***does*** commit to providing APIs that higher-level crates can use to implement that
-functionality.
-
-## `1.0` and stability
-
-When all core features are implemented to the satisfaction of the Winit maintainers, Winit 1.0 will
-be released and the library will enter maintenance mode. For the most part, new core features will not
-be added past this point. New platform features may be accepted and exposed through point releases.
-
-### Tier upgrades
-Some platform features could in theory be exposed across multiple platforms, but have not gone
-through the implementation work necessary to function on all platforms. When one of these features
-gets implemented across all platforms, a PR can be opened to upgrade the feature to a core feature.
-If that gets accepted, the platform-specific functions gets deprecated and become permanently
-exposed through the core, cross-platform API.
-
-# Features
-
-## Extending this section
-
-If your PR makes notable changes to Winit's features, please update this section as follows:
-
-- If your PR adds a new feature, add a brief description to the relevant section. If the feature is a core
-  feature, add a row to the feature matrix and describe what platforms the feature has been implemented on.
-
-- If your PR begins a new API rework, add a row to the `Pending API Reworks` table. If the PR implements the
-  API rework on all relevant platforms, please move it to the `Completed API Reworks` table.
-
-- If your PR implements an already-existing feature on a new platform, either mark the feature as *completed*,
-  or mark it as *mostly completed* and link to an issue describing the problems with the implementation.
-
-## Core
-
-### Windowing
-- **Window initialization**: Winit allows the creation of a window
-- **Providing pointer to init OpenGL**: Winit provides the necessary pointers to initialize a working opengl context
-- **Providing pointer to init Vulkan**: Same as OpenGL but for Vulkan
-- **Window decorations**: The windows created by winit are properly decorated, and the decorations can
-  be deactivated
-- **Window decorations toggle**: Decorations can be turned on or off after window creation
-- **Window resizing**: The windows created by winit can be resized and generate the appropriate events
-  when they are. The application can precisely control its window size if desired.
-- **Window resize increments**: When the window gets resized, the application can choose to snap the window's
-  size to specific values.
-- **Window transparency**: Winit allows the creation of windows with a transparent background.
-- **Window maximization**: The windows created by winit can be maximized upon creation.
-- **Window maximization toggle**: The windows created by winit can be maximized and unmaximized after
-  creation.
-- **Fullscreen**: The windows created by winit can be put into fullscreen mode.
-- **Fullscreen toggle**: The windows created by winit can be switched to and from fullscreen after
-  creation.
-- **Exclusive fullscreen**: Winit allows changing the video mode of the monitor
-  for fullscreen windows, and if applicable, captures the monitor for exclusive
-  use by this application.
-- **HiDPI support**: Winit assists developers in appropriately scaling HiDPI content.
-- **Popup / modal windows**: Windows can be created relative to the client area of other windows, and parent
-  windows can be disabled in favor of popup windows. This feature also guarantees that popup windows
-  get drawn above their owner.
-
-
-### System Information
-- **Monitor list**: Retrieve the list of monitors and their metadata, including which one is primary.
-- **Video mode query**: Monitors can be queried for their supported fullscreen video modes (consisting of resolution, refresh rate, and bit depth).
-
-### Input Handling
-- **Mouse events**: Generating mouse events associated with pointer motion, click, and scrolling events.
-- **Mouse set location**: Forcibly changing the location of the pointer.
-- **Cursor grab**: Locking the cursor so it cannot exit the client area of a window.
-- **Cursor icon**: Changing the cursor icon, or hiding the cursor.
-- **Touch events**: Single-touch events.
-- **Touch pressure**: Touch events contain information about the amount of force being applied.
-- **Multitouch**: Multi-touch events, including cancellation of a gesture.
-- **Keyboard events**: Properly processing keyboard events using the user-specified keymap and
-  translating keypresses into UTF-8 characters, handling dead keys and IMEs.
-- **Drag & Drop**: Dragging content into winit, detecting when content enters, drops, or if the drop is cancelled.
-- **Raw Device Events**: Capturing input from input devices without any OS filtering.
-- **Gamepad/Joystick events**: Capturing input from gampads and joysticks.
-- **Device movement events:**: Capturing input from the device gyroscope and accelerometer.
-
-## Platform
-### Windows
-* Setting the taskbar icon
-* Setting the parent window
-* `WS_EX_NOREDIRECTIONBITMAP` support
-
-### macOS
-* Window activation policy
-* Window movable by background
-* Transparent titlebar
-* Hidden titlebar
-* Hidden titlebar buttons
-* Full-size content view
-
-### Unix
-* Window urgency
-* X11 Window Class
-* X11 Override Redirect Flag
-* GTK Theme Variant
-* Base window size
-
-### iOS
-* `winit` has a minimum OS requirement of iOS 8
-* Get the `UIWindow` object pointer
-* Get the `UIViewController` object pointer
-* Get the `UIView` object pointer
-* Get the `UIScreen` object pointer
-* Setting the `UIView` hidpi factor
-* Valid orientations
-* Home indicator visibility
-* Status bar visibility
-* Deferrring system gestures
-* Support for custom `UIView` derived class
-* Getting the device idiom
-* Getting the preferred video mode
-
-## Usability
-* `serde`: Enables serialization/deserialization of certain types with Serde. (Maintainer: @Osspial)
-
-## Compatibility Matrix
-
-Legend:
-
-- ✔️: Works as intended
-- ▢: Mostly works but some bugs are known
-- ❌: Missing feature or large bugs making it unusable
-- **N/A**: Not applicable for this platform
-- ❓: Unknown status
-
-### Windowing
-|Feature                          |Windows|MacOS   |Linux x11   |Linux Wayland  |Android|iOS    |WASM      |
-|-------------------------------- | ----- | ----   | -------    | -----------   | ----- | ----- | -------- |
-|Window initialization            |✔️     |✔️     |▢[#5]      |✔️             |▢[#33]|▢[#33] |✔️        |
-|Providing pointer to init OpenGL |✔️     |✔️     |✔️         |✔️             |✔️     |✔️    |**N/A**|
-|Providing pointer to init Vulkan |✔️     |✔️     |✔️         |✔️             |✔️     |❓     |**N/A**|
-|Window decorations               |✔️     |✔️     |✔️         |▢[#306]        |**N/A**|**N/A**|**N/A**|
-|Window decorations toggle        |✔️     |✔️     |✔️         |✔️             |**N/A**|**N/A**|**N/A**|
-|Window resizing                  |✔️     |▢[#219]|✔️         |▢[#306]        |**N/A**|**N/A**|✔️        |
-|Window resize increments         |❌     |❌     |❌         |❌             |❌    |❌     |**N/A**|
-|Window transparency              |✔️     |✔️     |✔️         |✔️             |**N/A**|**N/A**|N/A        |
-|Window maximization              |✔️     |✔️     |✔️         |✔️             |**N/A**|**N/A**|**N/A**|
-|Window maximization toggle       |✔️     |✔️     |✔️         |✔️             |**N/A**|**N/A**|**N/A**|
-|Fullscreen                       |✔️     |✔️     |✔️         |✔️             |**N/A**|✔️     |✔️        |
-|Fullscreen toggle                |✔️     |✔️     |✔️         |✔️             |**N/A**|✔️     |✔️        |
-|Exclusive fullscreen             |✔️     |✔️     |✔️         |**N/A**         |❌    |✔️     |**N/A**|
-|HiDPI support                    |✔️     |✔️     |✔️         |✔️             |▢[#721]|✔️    |**N/A**|
-|Popup windows                    |❌     |❌     |❌         |❌             |❌    |❌     |**N/A**|
-
-### System information
-|Feature          |Windows|MacOS |Linux x11|Linux Wayland|Android|iOS      |WASM      |
-|---------------- | ----- | ---- | ------- | ----------- | ----- | ------- | -------- |
-|Monitor list     |✔️    |✔️    |✔️       |✔️          |**N/A**|✔️       |**N/A**|
-|Video mode query |✔️    |✔️    |✔️       |✔️          |❌     |✔️      |**N/A**|
-
-### Input handling
-|Feature                 |Windows   |MacOS   |Linux x11|Linux Wayland|Android|iOS    |WASM      |
-|----------------------- | -----    | ----   | ------- | ----------- | ----- | ----- | -------- |
-|Mouse events            |✔️       |▢[#63]  |✔️       |✔️          |**N/A**|**N/A**|✔️        |
-|Mouse set location      |✔️       |✔️      |✔️       |❓           |**N/A**|**N/A**|**N/A**|
-|Cursor grab             |✔️       |▢[#165] |▢[#242]  |✔️         |**N/A**|**N/A**|❓        |
-|Cursor icon             |✔️       |✔️      |✔️       |✔️           |**N/A**|**N/A**|✔️        |
-|Touch events            |✔️       |❌      |✔️       |✔️          |✔️    |✔️     |✔️        |
-|Touch pressure          |✔️       |❌      |❌       |❌          |❌    |✔️     |✔️        |
-|Multitouch              |✔️       |❌      |✔️       |✔️          |❓     |✔️     |✔️        |
-|Keyboard events         |✔️       |✔️      |✔️       |✔️          |❓     |❌     |✔️        |
-|Drag & Drop             |▢[#720]  |▢[#720] |▢[#720]  |❌[#306]    |**N/A**|**N/A**|❓        |
-|Raw Device Events       |▢[#750]  |▢[#750] |▢[#750]  |❌          |❌    |❌     |❓        |
-|Gamepad/Joystick events |❌[#804] |❌      |❌       |❌          |❌    |❌     |❓        |
-|Device movement events  |❓        |❓       |❓       |❓           |❌    |❌     |❓        |
-
-### Pending API Reworks
-Changes in the API that have been agreed upon but aren't implemented across all platforms.
-
-|Feature                             |Windows|MacOS |Linux x11|Linux Wayland|Android|iOS    |WASM      |
-|------------------------------      | ----- | ---- | ------- | ----------- | ----- | ----- | -------- |
-|New API for HiDPI ([#315] [#319])   |✔️    |✔️    |✔️       |✔️          |▢[#721]|✔️    |❓        |
-|Event Loop 2.0 ([#459])             |✔️    |✔️    |❌       |✔️          |❌     |✔️    |❓        |
-|Keyboard Input ([#812])             |❌    |❌    |❌       |❌          |❌     |❌    |❓        |
-
-### Completed API Reworks
-|Feature                             |Windows|MacOS |Linux x11|Linux Wayland|Android|iOS    |WASM      |
-|------------------------------      | ----- | ---- | ------- | ----------- | ----- | ----- | -------- |
-
-[#165]: https://github.com/rust-windowing/winit/issues/165
-[#219]: https://github.com/rust-windowing/winit/issues/219
-[#242]: https://github.com/rust-windowing/winit/issues/242
-[#306]: https://github.com/rust-windowing/winit/issues/306
-[#315]: https://github.com/rust-windowing/winit/issues/315
-[#319]: https://github.com/rust-windowing/winit/issues/319
-[#33]: https://github.com/rust-windowing/winit/issues/33
-[#459]: https://github.com/rust-windowing/winit/issues/459
-[#5]: https://github.com/rust-windowing/winit/issues/5
-[#63]: https://github.com/rust-windowing/winit/issues/63
-[#720]: https://github.com/rust-windowing/winit/issues/720
-[#721]: https://github.com/rust-windowing/winit/issues/721
-[#750]: https://github.com/rust-windowing/winit/issues/750
-[#804]: https://github.com/rust-windowing/winit/issues/804
-[#812]: https://github.com/rust-windowing/winit/issues/812

HALL_OF_CHAMPIONS.md

@@ -1,14 +0,0 @@
-# Hall of Champions
-
-The Winit maintainers would like to recognize the following former Winit
-contributors, without whom Winit would not exist in its current form. We thank
-them deeply for their time and efforts, and wish them best of luck in their
-future endeavors:
-
-* [@tomaka]: For creating the Winit project and guiding it through its early
-  years of existence.
-* [@francesca64]: For taking over the responsibility of maintaining almost every
-  Winit backend, and standardizing HiDPI support across all of them
-
-[@tomaka]: https://github.com/tomaka
-[@francesca64]: https://github.com/francesca64

README.md

@@ -1,33 +1,23 @@
 # winit - Cross-platform window creation and management in Rust
 
-[![Crates.io](https://img.shields.io/crates/v/winit.svg)](https://crates.io/crates/winit)
+[![](http://meritbadge.herokuapp.com/winit)](https://crates.io/crates/winit)
+
 [![Docs.rs](https://docs.rs/winit/badge.svg)](https://docs.rs/winit)
-[![Build Status](https://travis-ci.org/rust-windowing/winit.svg?branch=master)](https://travis-ci.org/rust-windowing/winit)
-[![Build status](https://ci.appveyor.com/api/projects/status/hr89but4x1n3dphq/branch/master?svg=true)](https://ci.appveyor.com/project/Osspial/winit/branch/master)
+
+[![Build Status](https://travis-ci.org/tomaka/winit.png?branch=master)](https://travis-ci.org/tomaka/winit)
+[![Build status](https://ci.appveyor.com/api/projects/status/5h87hj0g4q2xe3j9/branch/master?svg=true)](https://ci.appveyor.com/project/tomaka/winit/branch/master)
 
 ```toml
 [dependencies]
-winit = "0.20.0-alpha4"
+winit = "0.5"
 ```
 
 ## [Documentation](https://docs.rs/winit)
 
-For features _within_ the scope of winit, see [FEATURES.md](FEATURES.md).
-
-For features _outside_ the scope of winit, see [Missing features provided by other crates](https://github.com/rust-windowing/winit/wiki/Missing-features-provided-by-other-crates) in the wiki.
-
-## Contact Us
-
-Join us in any of these:
-
-[![Freenode](https://img.shields.io/badge/freenode.net-%23glutin-red.svg)](http://webchat.freenode.net?channels=%23glutin&uio=MTY9dHJ1ZSYyPXRydWUmND10cnVlJjExPTE4NSYxMj10cnVlJjE1PXRydWU7a)
-[![Matrix](https://img.shields.io/badge/Matrix-%23Glutin%3Amatrix.org-blueviolet.svg)](https://matrix.to/#/#Glutin:matrix.org)
-[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/tomaka/glutin?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-
 ## Usage
 
 Winit is a window creation and management library. It can create windows and lets you handle
-events (for example: the window being resized, a key being pressed, a mouse movement, etc.)
+events (for example: the window being resized, a key being pressed, a mouse mouvement, etc.)
 produced by window.
 
 Winit is designed to be a low-level brick in a hierarchy of libraries. Consequently, in order to
@@ -35,43 +25,16 @@ show something on the window you need to use the platform-specific getters provi
 another library.
 
 ```rust
-use winit::{
-    event::{Event, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
+extern crate winit;
 
 fn main() {
-    let event_loop = EventLoop::new();
-    let window = WindowBuilder::new().build(&event_loop).unwrap();
+    let window = winit::Window::new().unwrap();
 
-    event_loop.run(move |event, _, control_flow| {
+    for event in window.wait_events() {
         match event {
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                window_id,
-            } if window_id == window.id() => *control_flow = ControlFlow::Exit,
-            _ => *control_flow = ControlFlow::Wait,
+            winit::Event::Closed => break,
+            _ => ()
         }
-    });
+    }
 }
 ```
-
-Winit is only officially supported on the latest stable version of the Rust compiler.
-
-### Cargo Features
-
-Winit provides the following features, which can be enabled in your `Cargo.toml` file:
-* `serde`: Enables serialization/deserialization of certain types with [Serde](https://crates.io/crates/serde).
-
-### Platform-specific usage
-
-#### WebAssembly
-
-Building a binary will yield a `.js` file. In order to use it in an HTML file, you need to:
-
-- Put a `<canvas id="my_id"></canvas>` element somewhere. A canvas corresponds to a winit "window".
-- Write a Javascript code that creates a global variable named `Module`. Set `Module.canvas` to
-  the element of the `<canvas>` element (in the example you would retrieve it via `document.getElementById("my_id")`).
-  More information [here](https://kripken.github.io/emscripten-site/docs/api_reference/module.html).
-- Make sure that you insert the `.js` file generated by Rust after the `Module` variable is created.

appveyor.yml

@@ -1,28 +1,12 @@
 environment:
   matrix:
   - TARGET: x86_64-pc-windows-msvc
-    CHANNEL: stable
   - TARGET: i686-pc-windows-msvc
-    CHANNEL: stable
-  - TARGET: x86_64-pc-windows-gnu
-    CHANNEL: stable
   - TARGET: i686-pc-windows-gnu
-    CHANNEL: stable
-  - TARGET: x86_64-pc-windows-msvc
-    CHANNEL: nightly
-  - TARGET: i686-pc-windows-msvc
-    CHANNEL: nightly
-  - TARGET: x86_64-pc-windows-gnu
-    CHANNEL: nightly
-  - TARGET: i686-pc-windows-gnu
-    CHANNEL: nightly
-matrix:
-  allow_failures:
-    - CHANNEL: nightly
 install:
-  - appveyor DownloadFile https://win.rustup.rs/ -FileName rustup-init.exe
-  - rustup-init -yv --default-toolchain %CHANNEL% --default-host %TARGET%
-  - SET PATH=%PATH%;%USERPROFILE%\.cargo\bin
+  - ps: Start-FileDownload "https://static.rust-lang.org/dist/rust-nightly-${env:TARGET}.exe"
+  - rust-nightly-%TARGET%.exe /VERYSILENT /NORESTART /DIR="C:\Program Files (x86)\Rust"
+  - SET PATH=%PATH%;C:\Program Files (x86)\Rust\bin
   - SET PATH=%PATH%;C:\MinGW\bin
   - rustc -V
   - cargo -V
@@ -31,5 +15,3 @@ build: false
 
 test_script:
   - cargo test --verbose
-  - cargo test --features serde --verbose
-  - cargo doc --no-deps

examples/cursor.rs

@@ -1,79 +1,31 @@
-use winit::{
-    event::{ElementState, Event, KeyboardInput, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::{CursorIcon, WindowBuilder},
-};
+extern crate winit;
+
+use winit::{Event, ElementState, MouseCursor, WindowEvent};
 
 fn main() {
-    let event_loop = EventLoop::new();
+    let events_loop = winit::EventsLoop::new();
 
-    let window = WindowBuilder::new().build(&event_loop).unwrap();
+    let window = winit::WindowBuilder::new().build(&events_loop).unwrap();
     window.set_title("A fantastic window!");
 
+    let cursors = [MouseCursor::Default, MouseCursor::Crosshair, MouseCursor::Hand, MouseCursor::Arrow, MouseCursor::Move, MouseCursor::Text, MouseCursor::Wait, MouseCursor::Help, MouseCursor::Progress, MouseCursor::NotAllowed, MouseCursor::ContextMenu, MouseCursor::NoneCursor, MouseCursor::Cell, MouseCursor::VerticalText, MouseCursor::Alias, MouseCursor::Copy, MouseCursor::NoDrop, MouseCursor::Grab, MouseCursor::Grabbing, MouseCursor::AllScroll, MouseCursor::ZoomIn, MouseCursor::ZoomOut, MouseCursor::EResize, MouseCursor::NResize, MouseCursor::NeResize, MouseCursor::NwResize, MouseCursor::SResize, MouseCursor::SeResize, MouseCursor::SwResize, MouseCursor::WResize, MouseCursor::EwResize, MouseCursor::NsResize, MouseCursor::NeswResize, MouseCursor::NwseResize, MouseCursor::ColResize, MouseCursor::RowResize];
     let mut cursor_idx = 0;
 
-    event_loop.run(move |event, _, control_flow| match event {
-        Event::WindowEvent {
-            event:
-                WindowEvent::KeyboardInput(KeyboardInput {
-                    state: ElementState::Pressed,
-                    ..
-                }),
-            ..
-        } => {
-            println!("Setting cursor to \"{:?}\"", CURSORS[cursor_idx]);
-            window.set_cursor_icon(CURSORS[cursor_idx]);
-            if cursor_idx < CURSORS.len() - 1 {
-                cursor_idx += 1;
-            } else {
-                cursor_idx = 0;
-            }
+    events_loop.run_forever(|event| {
+        match event {
+            Event::WindowEvent { event: WindowEvent::KeyboardInput(ElementState::Pressed, _, _, _), .. } => {
+                println!("Setting cursor to \"{:?}\"", cursors[cursor_idx]);
+                window.set_cursor(cursors[cursor_idx]);
+                if cursor_idx < cursors.len() - 1 {
+                    cursor_idx += 1;
+                } else {
+                    cursor_idx = 0;
+                }
+            },
+            Event::WindowEvent { event: WindowEvent::Closed, .. } => {
+                events_loop.interrupt()
+            },
+            _ => ()
         }
-        Event::WindowEvent {
-            event: WindowEvent::CloseRequested,
-            ..
-        } => {
-            *control_flow = ControlFlow::Exit;
-            return;
-        }
-        _ => (),
     });
 }
-
-const CURSORS: &[CursorIcon] = &[
-    CursorIcon::Default,
-    CursorIcon::Crosshair,
-    CursorIcon::Hand,
-    CursorIcon::Arrow,
-    CursorIcon::Move,
-    CursorIcon::Text,
-    CursorIcon::Wait,
-    CursorIcon::Help,
-    CursorIcon::Progress,
-    CursorIcon::NotAllowed,
-    CursorIcon::ContextMenu,
-    CursorIcon::Cell,
-    CursorIcon::VerticalText,
-    CursorIcon::Alias,
-    CursorIcon::Copy,
-    CursorIcon::NoDrop,
-    CursorIcon::Grab,
-    CursorIcon::Grabbing,
-    CursorIcon::AllScroll,
-    CursorIcon::ZoomIn,
-    CursorIcon::ZoomOut,
-    CursorIcon::EResize,
-    CursorIcon::NResize,
-    CursorIcon::NeResize,
-    CursorIcon::NwResize,
-    CursorIcon::SResize,
-    CursorIcon::SeResize,
-    CursorIcon::SwResize,
-    CursorIcon::WResize,
-    CursorIcon::EwResize,
-    CursorIcon::NsResize,
-    CursorIcon::NeswResize,
-    CursorIcon::NwseResize,
-    CursorIcon::ColResize,
-    CursorIcon::RowResize,
-];

examples/cursor_grab.rs

@@ -1,47 +0,0 @@
-use winit::{
-    event::{DeviceEvent, ElementState, Event, KeyboardInput, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    let window = WindowBuilder::new()
-        .with_title("Super Cursor Grab'n'Hide Simulator 9000")
-        .build(&event_loop)
-        .unwrap();
-
-    event_loop.run(move |event, _, control_flow| {
-        *control_flow = ControlFlow::Wait;
-        match event {
-            Event::WindowEvent { event, .. } => match event {
-                WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
-                WindowEvent::KeyboardInput(KeyboardInput {
-                    state: ElementState::Released,
-                    virtual_keycode: Some(key),
-                    modifiers,
-                    ..
-                }) => {
-                    use winit::event::VirtualKeyCode::*;
-                    match key {
-                        Escape => *control_flow = ControlFlow::Exit,
-                        G => window.set_cursor_grab(!modifiers.shift).unwrap(),
-                        H => window.set_cursor_visible(modifiers.shift),
-                        _ => (),
-                    }
-                }
-                _ => (),
-            },
-            Event::DeviceEvent { event, .. } => match event {
-                DeviceEvent::MouseMotion { delta } => println!("mouse moved: {:?}", delta),
-                DeviceEvent::Button { button, state } => match state {
-                    ElementState::Pressed => println!("mouse button {} pressed", button),
-                    ElementState::Released => println!("mouse button {} released", button),
-                },
-                _ => (),
-            },
-            _ => (),
-        }
-    });
-}

examples/custom_events.rs

@@ -1,47 +0,0 @@
-#[cfg(not(target_arch = "wasm32"))]
-fn main() {
-    use winit::{
-        event::{Event, WindowEvent},
-        event_loop::{ControlFlow, EventLoop},
-        window::WindowBuilder,
-    };
-
-    #[derive(Debug, Clone, Copy)]
-    enum CustomEvent {
-        Timer,
-    }
-
-    let event_loop = EventLoop::<CustomEvent>::with_user_event();
-
-    let _window = WindowBuilder::new()
-        .with_title("A fantastic window!")
-        .build(&event_loop)
-        .unwrap();
-
-    // `EventLoopProxy` allows you to dispatch custom events to the main Winit event
-    // loop from any thread.
-    let event_loop_proxy = event_loop.create_proxy();
-
-    std::thread::spawn(move || {
-        // Wake up the `event_loop` once every second and dispatch a custom event
-        // from a different thread.
-        loop {
-            std::thread::sleep(std::time::Duration::from_secs(1));
-            event_loop_proxy.send_event(CustomEvent::Timer).ok();
-        }
-    });
-
-    event_loop.run(move |event, _, control_flow| match event {
-        Event::UserEvent(event) => println!("user event: {:?}", event),
-        Event::WindowEvent {
-            event: WindowEvent::CloseRequested,
-            ..
-        } => *control_flow = ControlFlow::Exit,
-        _ => *control_flow = ControlFlow::Wait,
-    });
-}
-
-#[cfg(target_arch = "wasm32")]
-fn main() {
-    panic!("This example is not supported on web.");
-}

examples/fullscreen.rs

@@ -1,112 +1,46 @@
-use std::io::{stdin, stdout, Write};
-use winit::event::{ElementState, Event, KeyboardInput, VirtualKeyCode, WindowEvent};
-use winit::event_loop::{ControlFlow, EventLoop};
-use winit::monitor::{MonitorHandle, VideoMode};
-use winit::window::{Fullscreen, WindowBuilder};
+extern crate winit;
+
+use std::io::{self, Write};
 
 fn main() {
-    let event_loop = EventLoop::new();
+    // enumerating monitors
+    let monitor = {
+        for (num, monitor) in winit::get_available_monitors().enumerate() {
+            println!("Monitor #{}: {:?}", num, monitor.get_name());
+        }
 
-    print!("Please choose the fullscreen mode: (1) exclusive, (2) borderless: ");
-    stdout().flush().unwrap();
+        print!("Please write the number of the monitor to use: ");
+        io::stdout().flush().unwrap();
 
-    let mut num = String::new();
-    stdin().read_line(&mut num).unwrap();
-    let num = num.trim().parse().ok().expect("Please enter a number");
+        let mut num = String::new();
+        io::stdin().read_line(&mut num).unwrap();
+        let num = num.trim().parse().ok().expect("Please enter a number");
+        let monitor = winit::get_available_monitors().nth(num).expect("Please enter a valid ID");
 
-    let fullscreen = Some(match num {
-        1 => Fullscreen::Exclusive(prompt_for_video_mode(&prompt_for_monitor(&event_loop))),
-        2 => Fullscreen::Borderless(prompt_for_monitor(&event_loop)),
-        _ => panic!("Please enter a valid number"),
-    });
+        println!("Using {:?}", monitor.get_name());
 
-    let mut is_maximized = false;
-    let mut decorations = true;
+        monitor
+    };
 
-    let window = WindowBuilder::new()
+    let events_loop = winit::EventsLoop::new();
+
+    let _window = winit::WindowBuilder::new()
         .with_title("Hello world!")
-        .with_fullscreen(fullscreen.clone())
-        .build(&event_loop)
+        .with_fullscreen(monitor)
+        .build(&events_loop)
         .unwrap();
 
-    event_loop.run(move |event, _, control_flow| {
-        *control_flow = ControlFlow::Wait;
+    events_loop.run_forever(|event| {
+        println!("{:?}", event);
 
         match event {
-            Event::WindowEvent { event, .. } => match event {
-                WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
-                WindowEvent::KeyboardInput(KeyboardInput {
-                    virtual_keycode: Some(virtual_code),
-                    state,
-                    ..
-                }) => match (virtual_code, state) {
-                    (VirtualKeyCode::Escape, _) => *control_flow = ControlFlow::Exit,
-                    (VirtualKeyCode::F, ElementState::Pressed) => {
-                        if window.fullscreen().is_some() {
-                            window.set_fullscreen(None);
-                        } else {
-                            window.set_fullscreen(fullscreen.clone());
-                        }
-                    }
-                    (VirtualKeyCode::S, ElementState::Pressed) => {
-                        println!("window.fullscreen {:?}", window.fullscreen());
-                    }
-                    (VirtualKeyCode::M, ElementState::Pressed) => {
-                        is_maximized = !is_maximized;
-                        window.set_maximized(is_maximized);
-                    }
-                    (VirtualKeyCode::D, ElementState::Pressed) => {
-                        decorations = !decorations;
-                        window.set_decorations(decorations);
-                    }
-                    _ => (),
-                },
-                _ => (),
+            winit::Event::WindowEvent { event, .. } => {
+                match event {
+                    winit::WindowEvent::Closed => events_loop.interrupt(),
+                    winit::WindowEvent::KeyboardInput(_, _, Some(winit::VirtualKeyCode::Escape), _) => events_loop.interrupt(),
+                    _ => ()
+                }
             },
-            _ => {}
         }
     });
 }
-
-// Enumerate monitors and prompt user to choose one
-fn prompt_for_monitor(event_loop: &EventLoop<()>) -> MonitorHandle {
-    for (num, monitor) in event_loop.available_monitors().enumerate() {
-        println!("Monitor #{}: {:?}", num, monitor.name());
-    }
-
-    print!("Please write the number of the monitor to use: ");
-    stdout().flush().unwrap();
-
-    let mut num = String::new();
-    stdin().read_line(&mut num).unwrap();
-    let num = num.trim().parse().ok().expect("Please enter a number");
-    let monitor = event_loop
-        .available_monitors()
-        .nth(num)
-        .expect("Please enter a valid ID");
-
-    println!("Using {:?}", monitor.name());
-
-    monitor
-}
-
-fn prompt_for_video_mode(monitor: &MonitorHandle) -> VideoMode {
-    for (i, video_mode) in monitor.video_modes().enumerate() {
-        println!("Video mode #{}: {}", i, video_mode);
-    }
-
-    print!("Please write the number of the video mode to use: ");
-    stdout().flush().unwrap();
-
-    let mut num = String::new();
-    stdin().read_line(&mut num).unwrap();
-    let num = num.trim().parse().ok().expect("Please enter a number");
-    let video_mode = monitor
-        .video_modes()
-        .nth(num)
-        .expect("Please enter a valid ID");
-
-    println!("Using {}", video_mode);
-
-    video_mode
-}

examples/gamepad.rs

@@ -1,52 +0,0 @@
-use winit::{
-    event::{
-        device::{GamepadEvent, GamepadHandle},
-        Event, WindowEvent,
-    },
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    let _window = WindowBuilder::new()
-        .with_title("The world's worst video game")
-        .build(&event_loop)
-        .unwrap();
-
-    println!("enumerating gamepads:");
-    for gamepad in GamepadHandle::enumerate(&event_loop) {
-        println!(
-            "    gamepad={:?}\tport={:?}\tbattery level={:?}",
-            gamepad,
-            gamepad.port(),
-            gamepad.battery_level()
-        );
-    }
-
-    let deadzone = 0.12;
-
-    event_loop.run(move |event, _, control_flow| {
-        match event {
-            Event::GamepadEvent(gamepad_handle, event) => {
-                match event {
-                    // Discard any Axis events that has a corresponding Stick event.
-                    GamepadEvent::Axis { stick: true, .. } => (),
-
-                    // Discard any Stick event that falls inside the stick's deadzone.
-                    GamepadEvent::Stick {
-                        x_value, y_value, ..
-                    } if (x_value.powi(2) + y_value.powi(2)).sqrt() < deadzone => (),
-
-                    _ => println!("[{:?}] {:#?}", gamepad_handle, event),
-                }
-            }
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                ..
-            } => *control_flow = ControlFlow::Exit,
-            _ => (),
-        }
-    });
-}

examples/gamepad_rumble.rs

@@ -1,60 +0,0 @@
-use std::time::Instant;
-use winit::event_loop::EventLoop;
-
-#[derive(Debug, Clone)]
-enum Rumble {
-    None,
-    Left,
-    Right,
-}
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    // You should generally use `GamepadEvent::Added/Removed` to detect gamepads, as doing that will
-    // allow you to more easily support gamepad hotswapping. However, we're using `enumerate` here
-    // because it makes this example more concise.
-    let gamepads = winit::event::device::GamepadHandle::enumerate(&event_loop).collect::<Vec<_>>();
-
-    let rumble_patterns = &[
-        (0.5, Rumble::None),
-        (2.0, Rumble::Left),
-        (0.5, Rumble::None),
-        (2.0, Rumble::Right),
-    ];
-    let mut rumble_iter = rumble_patterns.iter().cloned().cycle();
-
-    let mut active_pattern = rumble_iter.next().unwrap();
-    let mut timeout = active_pattern.0;
-    let mut timeout_start = Instant::now();
-
-    event_loop.run(move |_, _, _| {
-        if timeout <= active_pattern.0 {
-            let t = (timeout / active_pattern.0) * std::f64::consts::PI;
-            let intensity = t.sin();
-
-            for g in &gamepads {
-                let result = match active_pattern.1 {
-                    Rumble::Left => g.rumble(intensity, 0.0),
-                    Rumble::Right => g.rumble(0.0, intensity),
-                    Rumble::None => Ok(()),
-                };
-
-                if let Err(e) = result {
-                    println!("Rumble failed: {:?}", e);
-                }
-            }
-
-            timeout = (Instant::now() - timeout_start).as_millis() as f64 / 1000.0;
-        } else {
-            active_pattern = rumble_iter.next().unwrap();
-            println!(
-                "Rumbling {:?} for {:?} seconds",
-                active_pattern.1, active_pattern.0
-            );
-
-            timeout = 0.0;
-            timeout_start = Instant::now();
-        }
-    });
-}

examples/grabbing.rs

@@ -0,0 +1,42 @@
+extern crate winit;
+
+use winit::{WindowEvent, ElementState};
+
+fn main() {
+    let events_loop = winit::EventsLoop::new();
+
+    let window = winit::WindowBuilder::new().build(&events_loop).unwrap();
+    window.set_title("winit - Cursor grabbing test");
+
+    let mut grabbed = false;
+
+    events_loop.run_forever(|event| {
+        println!("{:?}", event);
+
+        match event {
+            winit::Event::WindowEvent { event, .. } => {
+                match event {
+                    WindowEvent::KeyboardInput(ElementState::Pressed, _, _, _) => {
+                        if grabbed {
+                            grabbed = false;
+                            window.set_cursor_state(winit::CursorState::Normal)
+                                .ok().expect("could not ungrab mouse cursor");
+                        } else {
+                            grabbed = true;
+                            window.set_cursor_state(winit::CursorState::Grab)
+                                .ok().expect("could not grab mouse cursor");
+                        }
+                    },
+
+                    WindowEvent::Closed => events_loop.interrupt(),
+
+                    a @ WindowEvent::MouseMoved(_, _) => {
+                        println!("{:?}", a);
+                    },
+
+                    _ => (),
+                }
+            },
+        }
+    });
+}

examples/handling_close.rs

@@ -1,78 +0,0 @@
-use winit::{
-    event::{Event, KeyboardInput, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    let _window = WindowBuilder::new()
-        .with_title("Your faithful window")
-        .build(&event_loop)
-        .unwrap();
-
-    let mut close_requested = false;
-
-    event_loop.run(move |event, _, control_flow| {
-        use winit::event::{
-            ElementState::Released,
-            VirtualKeyCode::{N, Y},
-        };
-        *control_flow = ControlFlow::Wait;
-
-        match event {
-            Event::WindowEvent { event, .. } => {
-                match event {
-                    WindowEvent::CloseRequested => {
-                        // `CloseRequested` is sent when the close button on the window is pressed (or
-                        // through whatever other mechanisms the window manager provides for closing a
-                        // window). If you don't handle this event, the close button won't actually do
-                        // anything.
-
-                        // A common thing to do here is prompt the user if they have unsaved work.
-                        // Creating a proper dialog box for that is far beyond the scope of this
-                        // example, so here we'll just respond to the Y and N keys.
-                        println!("Are you ready to bid your window farewell? [Y/N]");
-                        close_requested = true;
-
-                        // In applications where you can safely close the window without further
-                        // action from the user, this is generally where you'd handle cleanup before
-                        // closing the window. How to close the window is detailed in the handler for
-                        // the Y key.
-                    }
-                    WindowEvent::KeyboardInput(KeyboardInput {
-                        virtual_keycode: Some(virtual_code),
-                        state: Released,
-                        ..
-                    }) => {
-                        match virtual_code {
-                            Y => {
-                                if close_requested {
-                                    // This is where you'll want to do any cleanup you need.
-                                    println!("Buh-bye!");
-
-                                    // For a single-window application like this, you'd normally just
-                                    // break out of the event loop here. If you wanted to keep running the
-                                    // event loop (i.e. if it's a multi-window application), you need to
-                                    // drop the window. That closes it, and results in `Destroyed` being
-                                    // sent.
-                                    *control_flow = ControlFlow::Exit;
-                                }
-                            }
-                            N => {
-                                if close_requested {
-                                    println!("Your window will continue to stay by your side.");
-                                    close_requested = false;
-                                }
-                            }
-                            _ => (),
-                        }
-                    }
-                    _ => (),
-                }
-            }
-            _ => (),
-        }
-    });
-}

examples/min_max_size.rs

@@ -1,27 +1,20 @@
-use winit::{
-    dpi::LogicalSize,
-    event::{Event, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
+extern crate winit;
 
 fn main() {
-    let event_loop = EventLoop::new();
+    let events_loop = winit::EventsLoop::new();
 
-    let window = WindowBuilder::new().build(&event_loop).unwrap();
+    let _window = winit::WindowBuilder::new()
+        .with_min_dimensions(400, 200)
+        .with_max_dimensions(800, 400)
+        .build(&events_loop)
+        .unwrap();
 
-    window.set_min_inner_size(Some(LogicalSize::new(400.0, 200.0)));
-    window.set_max_inner_size(Some(LogicalSize::new(800.0, 400.0)));
-
-    event_loop.run(move |event, _, control_flow| {
+    events_loop.run_forever(|event| {
         println!("{:?}", event);
 
         match event {
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                ..
-            } => *control_flow = ControlFlow::Exit,
-            _ => *control_flow = ControlFlow::Wait,
+            winit::Event::WindowEvent { event: winit::WindowEvent::Closed, .. } => events_loop.interrupt(),
+            _ => ()
         }
     });
 }

examples/monitor_list.rs

@@ -1,9 +0,0 @@
-use winit::{event_loop::EventLoop, window::WindowBuilder};
-
-fn main() {
-    let event_loop = EventLoop::new();
-    let window = WindowBuilder::new().build(&event_loop).unwrap();
-
-    dbg!(window.available_monitors().collect::<Vec<_>>());
-    dbg!(window.primary_monitor());
-}

examples/multithreaded.rs

@@ -1,168 +0,0 @@
-#[cfg(not(target_arch = "wasm32"))]
-fn main() {
-    extern crate env_logger;
-
-    use std::{collections::HashMap, sync::mpsc, thread, time::Duration};
-
-    use winit::{
-        event::{ElementState, Event, KeyboardInput, VirtualKeyCode, WindowEvent},
-        event_loop::{ControlFlow, EventLoop},
-        window::{CursorIcon, Fullscreen, WindowBuilder},
-    };
-
-    const WINDOW_COUNT: usize = 3;
-    const WINDOW_SIZE: (u32, u32) = (600, 400);
-
-    env_logger::init();
-    let event_loop = EventLoop::new();
-    let mut window_senders = HashMap::with_capacity(WINDOW_COUNT);
-    for _ in 0..WINDOW_COUNT {
-        let window = WindowBuilder::new()
-            .with_inner_size(WINDOW_SIZE.into())
-            .build(&event_loop)
-            .unwrap();
-
-        let mut video_modes: Vec<_> = window.current_monitor().video_modes().collect();
-        let mut video_mode_id = 0usize;
-
-        let (tx, rx) = mpsc::channel();
-        window_senders.insert(window.id(), tx);
-        thread::spawn(move || {
-            while let Ok(event) = rx.recv() {
-                match event {
-                    WindowEvent::Moved { .. } => {
-                        // We need to update our chosen video mode if the window
-                        // was moved to an another monitor, so that the window
-                        // appears on this monitor instead when we go fullscreen
-                        let previous_video_mode = video_modes.iter().cloned().nth(video_mode_id);
-                        video_modes = window.current_monitor().video_modes().collect();
-                        video_mode_id = video_mode_id.min(video_modes.len());
-                        let video_mode = video_modes.iter().nth(video_mode_id);
-
-                        // Different monitors may support different video modes,
-                        // and the index we chose previously may now point to a
-                        // completely different video mode, so notify the user
-                        if video_mode != previous_video_mode.as_ref() {
-                            println!(
-                                "Window moved to another monitor, picked video mode: {}",
-                                video_modes.iter().nth(video_mode_id).unwrap()
-                            );
-                        }
-                    }
-                    WindowEvent::KeyboardInput(KeyboardInput {
-                        state: ElementState::Released,
-                        virtual_keycode: Some(key),
-                        modifiers,
-                        ..
-                    }) => {
-                        window.set_title(&format!("{:?}", key));
-                        let state = !modifiers.shift;
-                        use VirtualKeyCode::*;
-                        match key {
-                            A => window.set_always_on_top(state),
-                            C => window.set_cursor_icon(match state {
-                                true => CursorIcon::Progress,
-                                false => CursorIcon::Default,
-                            }),
-                            D => window.set_decorations(!state),
-                            // Cycle through video modes
-                            Right | Left => {
-                                video_mode_id = match key {
-                                    Left => video_mode_id.saturating_sub(1),
-                                    Right => (video_modes.len() - 1).min(video_mode_id + 1),
-                                    _ => unreachable!(),
-                                };
-                                println!(
-                                    "Picking video mode: {}",
-                                    video_modes.iter().nth(video_mode_id).unwrap()
-                                );
-                            }
-                            F => window.set_fullscreen(match (state, modifiers.alt) {
-                                (true, false) => {
-                                    Some(Fullscreen::Borderless(window.current_monitor()))
-                                }
-                                (true, true) => Some(Fullscreen::Exclusive(
-                                    video_modes.iter().nth(video_mode_id).unwrap().clone(),
-                                )),
-                                (false, _) => None,
-                            }),
-                            G => window.set_cursor_grab(state).unwrap(),
-                            H => window.set_cursor_visible(!state),
-                            I => {
-                                println!("Info:");
-                                println!("-> outer_position : {:?}", window.outer_position());
-                                println!("-> inner_position : {:?}", window.inner_position());
-                                println!("-> outer_size     : {:?}", window.outer_size());
-                                println!("-> inner_size     : {:?}", window.inner_size());
-                                println!("-> fullscreen     : {:?}", window.fullscreen());
-                            }
-                            L => window.set_min_inner_size(match state {
-                                true => Some(WINDOW_SIZE.into()),
-                                false => None,
-                            }),
-                            M => window.set_maximized(state),
-                            P => window.set_outer_position({
-                                let mut position = window.outer_position().unwrap();
-                                let sign = if state { 1.0 } else { -1.0 };
-                                position.x += 10.0 * sign;
-                                position.y += 10.0 * sign;
-                                position
-                            }),
-                            Q => window.request_redraw(),
-                            R => window.set_resizable(state),
-                            S => window.set_inner_size(
-                                match state {
-                                    true => (WINDOW_SIZE.0 + 100, WINDOW_SIZE.1 + 100),
-                                    false => WINDOW_SIZE,
-                                }
-                                .into(),
-                            ),
-                            W => window
-                                .set_cursor_position(
-                                    (WINDOW_SIZE.0 as i32 / 2, WINDOW_SIZE.1 as i32 / 2).into(),
-                                )
-                                .unwrap(),
-                            Z => {
-                                window.set_visible(false);
-                                thread::sleep(Duration::from_secs(1));
-                                window.set_visible(true);
-                            }
-                            _ => (),
-                        }
-                    }
-                    _ => (),
-                }
-            }
-        });
-    }
-    event_loop.run(move |event, _event_loop, control_flow| {
-        *control_flow = match !window_senders.is_empty() {
-            true => ControlFlow::Wait,
-            false => ControlFlow::Exit,
-        };
-        match event {
-            Event::WindowEvent { event, window_id } => match event {
-                WindowEvent::CloseRequested
-                | WindowEvent::Destroyed
-                | WindowEvent::KeyboardInput(KeyboardInput {
-                state: ElementState::Released,
-                    virtual_keycode: Some(VirtualKeyCode::Escape),
-                    ..
-                }) => {
-                    window_senders.remove(&window_id);
-                }
-                _ => {
-                    if let Some(tx) = window_senders.get(&window_id) {
-                        tx.send(event).unwrap();
-                    }
-                }
-            },
-            _ => (),
-        }
-    })
-}
-
-#[cfg(target_arch = "wasm32")]
-fn main() {
-    panic!("Example not supported on Wasm");
-}

examples/multiwindow.rs

@@ -1,44 +1,32 @@
-use std::collections::HashMap;
-use winit::{
-    event::{ElementState, Event, KeyboardInput, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::Window,
-};
+extern crate winit;
 
 fn main() {
-    let event_loop = EventLoop::new();
+    let events_loop = winit::EventsLoop::new();
 
-    let mut windows = HashMap::new();
-    for _ in 0..3 {
-        let window = Window::new(&event_loop).unwrap();
-        windows.insert(window.id(), window);
-    }
+    let window1 = winit::Window::new(&events_loop).unwrap();
+    let window2 = winit::Window::new(&events_loop).unwrap();
+    let window3 = winit::Window::new(&events_loop).unwrap();
 
-    event_loop.run(move |event, event_loop, control_flow| {
-        *control_flow = ControlFlow::Wait;
+    let mut num_windows = 3;
+
+    events_loop.run_forever(|event| {
         match event {
-            Event::WindowEvent { event, window_id } => {
-                match event {
-                    WindowEvent::CloseRequested => {
-                        println!("Window {:?} has received the signal to close", window_id);
-
-                        // This drops the window, causing it to close.
-                        windows.remove(&window_id);
-
-                        if windows.is_empty() {
-                            *control_flow = ControlFlow::Exit;
-                        }
-                    }
-                    WindowEvent::KeyboardInput(KeyboardInput {
-                        state: ElementState::Pressed,
-                        ..
-                    }) => {
-                        let window = Window::new(&event_loop).unwrap();
-                        windows.insert(window.id(), window);
-                    }
-                    _ => (),
+            winit::Event::WindowEvent { event: winit::WindowEvent::Closed, window_id } => {
+                if window_id == window1.id() {
+                    println!("Window 1 has been closed")
+                } else if window_id == window2.id() {
+                    println!("Window 2 has been closed")
+                } else if window_id == window3.id() {
+                    println!("Window 3 has been closed");
+                } else {
+                    unreachable!()
                 }
-            }
+
+                num_windows -= 1;
+                if num_windows == 0 {
+                    events_loop.interrupt();
+                }
+            },
             _ => (),
         }
     })

examples/request_redraw.rs

@@ -1,35 +0,0 @@
-use instant::Instant;
-use std::time::Duration;
-
-use winit::{
-    event::{Event, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    let window = WindowBuilder::new()
-        .with_title("A fantastic window!")
-        .build(&event_loop)
-        .unwrap();
-
-    event_loop.run(move |event, _, control_flow| match event {
-        Event::WindowEvent {
-            event: WindowEvent::CloseRequested,
-            ..
-        } => *control_flow = ControlFlow::Exit,
-        Event::EventsCleared => {
-            window.request_redraw();
-            *control_flow = ControlFlow::WaitUntil(Instant::now() + Duration::new(1, 0))
-        }
-        Event::WindowEvent {
-            event: WindowEvent::RedrawRequested,
-            ..
-        } => {
-            println!("{:?}", event);
-        }
-        _ => (),
-    });
-}

examples/resizable.rs

@@ -1,38 +0,0 @@
-use winit::{
-    event::{ElementState, Event, KeyboardInput, VirtualKeyCode, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    let mut resizable = false;
-
-    let window = WindowBuilder::new()
-        .with_title("Hit space to toggle resizability.")
-        .with_inner_size((400, 200).into())
-        .with_resizable(resizable)
-        .build(&event_loop)
-        .unwrap();
-
-    event_loop.run(move |event, _, control_flow| {
-        *control_flow = ControlFlow::Wait;
-        match event {
-            Event::WindowEvent { event, .. } => match event {
-                WindowEvent::CloseRequested => *control_flow = ControlFlow::Exit,
-                WindowEvent::KeyboardInput(KeyboardInput {
-                    virtual_keycode: Some(VirtualKeyCode::Space),
-                    state: ElementState::Released,
-                    ..
-                }) => {
-                    resizable = !resizable;
-                    println!("Resizable: {}", resizable);
-                    window.set_resizable(resizable);
-                }
-                _ => (),
-            },
-            _ => (),
-        };
-    });
-}

examples/timer.rs

@@ -1,37 +0,0 @@
-use instant::Instant;
-use std::time::Duration;
-use winit::{
-    event::{Event, StartCause, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    let _window = WindowBuilder::new()
-        .with_title("A fantastic window!")
-        .build(&event_loop)
-        .unwrap();
-
-    let timer_length = Duration::new(1, 0);
-
-    event_loop.run(move |event, _, control_flow| {
-        println!("{:?}", event);
-
-        match event {
-            Event::NewEvents(StartCause::Init) => {
-                *control_flow = ControlFlow::WaitUntil(Instant::now() + timer_length)
-            }
-            Event::NewEvents(StartCause::ResumeTimeReached { .. }) => {
-                *control_flow = ControlFlow::WaitUntil(Instant::now() + timer_length);
-                println!("\nTimer\n");
-            }
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                ..
-            } => *control_flow = ControlFlow::Exit,
-            _ => (),
-        }
-    });
-}

examples/transparent.rs

@@ -1,29 +1,20 @@
-use winit::{
-    event::{Event, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
+extern crate winit;
 
 fn main() {
-    let event_loop = EventLoop::new();
+    let events_loop = winit::EventsLoop::new();
 
-    let window = WindowBuilder::new()
-        .with_decorations(false)
-        .with_transparent(true)
-        .build(&event_loop)
-        .unwrap();
+    let window = winit::WindowBuilder::new().with_decorations(false)
+                                                 .with_transparency(true)
+                                                 .build(&events_loop).unwrap();
 
     window.set_title("A fantastic window!");
 
-    event_loop.run(move |event, _, control_flow| {
+    events_loop.run_forever(|event| {
         println!("{:?}", event);
 
         match event {
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                ..
-            } => *control_flow = ControlFlow::Exit,
-            _ => *control_flow = ControlFlow::Wait,
+            winit::Event::WindowEvent { event: winit::WindowEvent::Closed, .. } => events_loop.interrupt(),
+            _ => ()
         }
     });
 }

examples/video_modes.rs

@@ -1,12 +0,0 @@
-use winit::event_loop::EventLoop;
-
-fn main() {
-    let event_loop = EventLoop::new();
-    let monitor = event_loop.primary_monitor();
-
-    println!("Listing available video modes:");
-
-    for mode in monitor.video_modes() {
-        println!("{}", mode);
-    }
-}

examples/web/gamepad/stdweb/Cargo.toml

@@ -1,11 +0,0 @@
-[package]
-name = "stdweb-gamepad"
-version = "0.1.0"
-authors = ["furiouzz <christophe.massolin@gmail.com>"]
-edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
-winit = { path = "../../../../", features = [ "stdweb" ] }
-stdweb = "0.4.20"

examples/web/gamepad/stdweb/src/main.rs

@@ -1,80 +0,0 @@
-use winit::{
-    event::{device::GamepadEvent, Event, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-use stdweb::js;
-
-/**
- * Build example (from examples/web/gamepad/stdweb):
- *    cargo web build
- * Run example (from examples/web/gamepad/stdweb):
- *    cargo web start
- * Development (from project root):
- *    npx nodemon --watch src --watch examples/web/gamepad/stdweb/src -e rs --exec 'cargo web check'
- */
-
-pub fn main() {
-    let event_loop = EventLoop::new();
-
-    let _window = WindowBuilder::new()
-        .with_title("Gamepad tests")
-        .build(&event_loop)
-        .unwrap();
-
-    let deadzone = 0.12;
-
-    event_loop.run(move |event, _, control_flow| match event {
-        Event::GamepadEvent(gamepad_handle, event) => match event {
-            GamepadEvent::Axis {
-                axis_id,
-                axis,
-                value,
-                stick,
-            } if value > deadzone => {
-                let string = format!("Axis {:#?} {:#?} {:#?} {:#?}", axis_id, axis, value, stick);
-                js! { console.log( @{string} ); }
-            }
-
-            GamepadEvent::Stick {
-                x_id,
-                y_id,
-                x_value,
-                y_value,
-                side,
-            } if (x_value.powi(2) + y_value.powi(2)).sqrt() > deadzone => {
-                let string = format!(
-                    "Stick {:#?} {:#?} {:#?} {:#?} {:#?}",
-                    x_id, y_id, x_value, y_value, side
-                );
-                js! { console.log( @{string} ); }
-            }
-
-            GamepadEvent::Button {
-                button_id,
-                button,
-                state,
-            } => {
-                let string = format!("Button {:#?} {:#?} {:#?}", button_id, button, state);
-                js! { console.log( @{string} ); }
-            }
-
-            GamepadEvent::Added => {
-                let string = format!("[{:?}] {:#?}", gamepad_handle, event);
-                js! { console.log( @{string} ); }
-            }
-            GamepadEvent::Removed => {
-                let string = format!("[{:?}] {:#?}", gamepad_handle, event);
-                js! { console.log( @{string} ); }
-            }
-
-            _ => {}
-        },
-        Event::WindowEvent {
-            event: WindowEvent::CloseRequested,
-            ..
-        } => *control_flow = ControlFlow::Exit,
-        _ => (),
-    });
-}

examples/web/gamepad/websys/.gitignore

@@ -1,7 +0,0 @@
-/target
-**/*.rs.bk
-Cargo.lock
-bin/
-pkg/
-wasm-pack.log
-.DS_Store

examples/web/gamepad/websys/Cargo.toml

@@ -1,20 +0,0 @@
-[package]
-name = "websys-gamepad"
-version = "0.0.1"
-authors = ["The winit contributors", "Pierre Krieger <pierre.krieger1708@gmail.com>"]
-edition = "2018"
-
-[lib]
-crate-type = ["cdylib", "rlib"]
-
-[dependencies]
-winit = { path = "../../../../", features = [ "web-sys" ] }
-wasm-bindgen = "0.2.45"
-wasm-bindgen-test = "0.3.8"
-web-sys = { version = "0.3.22", features = [ "console" ] }
-
-# The `console_error_panic_hook` crate provides better debugging of panics by
-# logging them with `console.error`. This is great for development, but requires
-# all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
-# code size when deploying.
-console_error_panic_hook = "0.1.6"

examples/web/gamepad/websys/files/gamepad.html

@@ -1,23 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <meta charset="UTF-8">
-  <meta name="viewport" content="width=device-width, initial-scale=1.0">
-  <meta http-equiv="X-UA-Compatible" content="ie=edge">
-  <title>Gamepad</title>
-</head>
-<body>
-  <canvas id="my_id"></canvas>
-  <script>
-    window.Module = {
-      canvas: document.getElementById('my_id')
-    }
-  </script>
-  <script type="module">
-    import example_gamepad from "../pkg/websys_examples.js"
-    example_gamepad()
-    .then((m) => console.log('Success', m))
-    .catch((e) => console.log('Ar error occured', e))
-  </script>
-</body>
-</html>

examples/web/gamepad/websys/src/lib.rs

@@ -1,78 +0,0 @@
-mod utils;
-
-use wasm_bindgen::prelude::*;
-use winit::{
-    event::{device::GamepadEvent, Event, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
-
-/**
- * Build example (from examples/gamepad/websys):
- *    wasm-pack build --target web
- * Run web server (from examples/gamepad/websys):
- *    npx http-server
- *    Open your browser at http://localhost:8000/files/${EXAMPLE}.html
- * Development (from project root):
- *    npx nodemon --watch src --watch examples/web/gamepad/websys/src -e rs --exec 'cd examples/web/gamepad/websys && wasm-pack build --target web'
- */
-
-macro_rules! console_log {
-  ($($t:tt)*) => (web_sys::console::log_1(&format_args!($($t)*).to_string().into()))
-}
-
-#[wasm_bindgen(start)]
-pub fn example_gamepad() {
-    utils::set_panic_hook(); // needed for error stack trace
-    let event_loop = EventLoop::new();
-
-    let _window = WindowBuilder::new()
-        .with_title("Gamepad tests")
-        .build(&event_loop)
-        .unwrap();
-
-    let deadzone = 0.12;
-
-    event_loop.run(move |event, _, control_flow| {
-        match event {
-            Event::GamepadEvent(gamepad_handle, event) => {
-                match event {
-                    GamepadEvent::Axis {
-                        axis_id,
-                        axis,
-                        value,
-                        stick,
-                    } if value > deadzone => {
-                        console_log!("Axis {:#?} {:#?} {:#?} {:#?}", axis_id, axis, value, stick)
-                    },
-
-                    GamepadEvent::Stick {
-                        x_id, y_id, x_value, y_value, side
-                    } if (x_value.powi(2) + y_value.powi(2)).sqrt() > deadzone => {
-                        console_log!("Stick {:#?} {:#?} {:#?} {:#?} {:#?}", x_id, y_id, x_value, y_value, side)
-                    },
-
-                    GamepadEvent::Button {
-                        button_id,
-                        button,
-                        state,
-                    } => {
-                        console_log!("Button {:#?} {:#?} {:#?}", button_id, button, state)
-                    },
-
-                    GamepadEvent::Added => {
-                        console_log!("[{:?}] {:#?}", gamepad_handle, event)
-                    },
-                    GamepadEvent::Removed => console_log!("[{:?}] {:#?}", gamepad_handle, event),
-
-                    _ => {},
-                }
-            }
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                ..
-            } => *control_flow = ControlFlow::Exit,
-            _ => (),
-        }
-    });
-}

examples/web/gamepad/websys/src/utils.rs

@@ -1,10 +0,0 @@
-pub fn set_panic_hook() {
-  // When the `console_error_panic_hook` feature is enabled, we can call the
-  // `set_panic_hook` function at least once during initialization, and then
-  // we will get better error messages if our code ever panics.
-  //
-  // For more details see
-  // https://github.com/rustwasm/console_error_panic_hook#readme
-  // #[cfg(feature = "console_error_panic_hook")]
-  console_error_panic_hook::set_once();
-}

examples/window.rs

@@ -1,26 +1,19 @@
-use winit::{
-    event::{Event, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::WindowBuilder,
-};
+extern crate winit;
 
 fn main() {
-    let event_loop = EventLoop::new();
+    let events_loop = winit::EventsLoop::new();
 
-    let window = WindowBuilder::new()
+    let window = winit::WindowBuilder::new()
         .with_title("A fantastic window!")
-        .build(&event_loop)
+        .build(&events_loop)
         .unwrap();
 
-    event_loop.run(move |event, _, control_flow| {
+    events_loop.run_forever(|event| {
         println!("{:?}", event);
 
         match event {
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                window_id,
-            } if window_id == window.id() => *control_flow = ControlFlow::Exit,
-            _ => *control_flow = ControlFlow::Wait,
+            winit::Event::WindowEvent { event: winit::WindowEvent::Closed, .. } => events_loop.interrupt(),
+            _ => ()
         }
     });
 }

examples/window_debug.rs

@@ -1,121 +0,0 @@
-// This example is used by developers to test various window functions.
-
-use winit::{
-    dpi::{LogicalSize, PhysicalSize},
-    event::{DeviceEvent, ElementState, Event, KeyboardInput, VirtualKeyCode, WindowEvent},
-    event_loop::{ControlFlow, EventLoop},
-    window::{Fullscreen, WindowBuilder},
-};
-
-fn main() {
-    let event_loop = EventLoop::new();
-
-    let window = WindowBuilder::new()
-        .with_title("A fantastic window!")
-        .with_inner_size(LogicalSize::from((100, 100)))
-        .build(&event_loop)
-        .unwrap();
-
-    eprintln!("debugging keys:");
-    eprintln!("  (E) Enter exclusive fullscreen");
-    eprintln!("  (F) Toggle borderless fullscreen");
-    #[cfg(waiting_for_set_minimized)]
-    eprintln!("  (M) Toggle minimized");
-    eprintln!("  (Q) Quit event loop");
-    eprintln!("  (V) Toggle visibility");
-    eprintln!("  (X) Toggle maximized");
-
-    #[cfg(waiting_for_set_minimized)]
-    let mut minimized = false;
-    let mut maximized = false;
-    let mut visible = true;
-
-    event_loop.run(move |event, _, control_flow| {
-        *control_flow = ControlFlow::Wait;
-
-        match event {
-            Event::DeviceEvent {
-                event:
-                    DeviceEvent::Key(KeyboardInput {
-                        virtual_keycode: Some(key),
-                        state: ElementState::Pressed,
-                        ..
-                    }),
-                ..
-            } => match key {
-                #[cfg(waiting_for_set_minimized)]
-                VirtualKeyCode::M => {
-                    if minimized {
-                        minimized = !minimized;
-                        window.set_minimized(minimized);
-                    }
-                }
-                VirtualKeyCode::V => {
-                    if !visible {
-                        visible = !visible;
-                        window.set_visible(visible);
-                    }
-                }
-                _ => (),
-            },
-            Event::WindowEvent {
-                event: WindowEvent::KeyboardInput { input, .. },
-                ..
-            } => match input {
-                KeyboardInput {
-                    virtual_keycode: Some(key),
-                    state: ElementState::Pressed,
-                    ..
-                } => match key {
-                    VirtualKeyCode::E => {
-                        fn area(size: PhysicalSize) -> f64 {
-                            size.width * size.height
-                        }
-
-                        let monitor = window.current_monitor();
-                        if let Some(mode) = monitor.video_modes().max_by(|a, b| {
-                            area(a.size())
-                                .partial_cmp(&area(b.size()))
-                                .expect("NaN in video mode size")
-                        }) {
-                            window.set_fullscreen(Some(Fullscreen::Exclusive(mode)));
-                        } else {
-                            eprintln!("no video modes available");
-                        }
-                    }
-                    VirtualKeyCode::F => {
-                        if window.fullscreen().is_some() {
-                            window.set_fullscreen(None);
-                        } else {
-                            let monitor = window.current_monitor();
-                            window.set_fullscreen(Some(Fullscreen::Borderless(monitor)));
-                        }
-                    }
-                    #[cfg(waiting_for_set_minimized)]
-                    VirtualKeyCode::M => {
-                        minimized = !minimized;
-                        window.set_minimized(minimized);
-                    }
-                    VirtualKeyCode::Q => {
-                        *control_flow = ControlFlow::Exit;
-                    }
-                    VirtualKeyCode::V => {
-                        visible = !visible;
-                        window.set_visible(visible);
-                    }
-                    VirtualKeyCode::X => {
-                        maximized = !maximized;
-                        window.set_maximized(maximized);
-                    }
-                    _ => (),
-                },
-                _ => (),
-            },
-            Event::WindowEvent {
-                event: WindowEvent::CloseRequested,
-                window_id,
-            } if window_id == window.id() => *control_flow = ControlFlow::Exit,
-            _ => (),
-        }
-    });
-}

examples/window_icon.rs

@@ -1,55 +0,0 @@
-extern crate image;
-use std::path::Path;
-use winit::{
-    event::Event,
-    event_loop::{ControlFlow, EventLoop},
-    window::{Icon, WindowBuilder},
-};
-
-fn main() {
-    // You'll have to choose an icon size at your own discretion. On X11, the desired size varies
-    // by WM, and on Windows, you still have to account for screen scaling. Here we use 32px,
-    // since it seems to work well enough in most cases. Be careful about going too high, or
-    // you'll be bitten by the low-quality downscaling built into the WM.
-    let path = concat!(env!("CARGO_MANIFEST_DIR"), "/examples/icon.png");
-
-    let icon = load_icon(Path::new(path));
-
-    let event_loop = EventLoop::new();
-
-    let window = WindowBuilder::new()
-        .with_title("An iconic window!")
-        // At present, this only does anything on Windows and X11, so if you want to save load
-        // time, you can put icon loading behind a function that returns `None` on other platforms.
-        .with_window_icon(Some(icon))
-        .build(&event_loop)
-        .unwrap();
-
-    event_loop.run(move |event, _, control_flow| {
-        *control_flow = ControlFlow::Wait;
-        if let Event::WindowEvent { event, .. } = event {
-            use winit::event::WindowEvent::*;
-            match event {
-                CloseRequested => *control_flow = ControlFlow::Exit,
-                DroppedFile(path) => {
-                    window.set_window_icon(Some(load_icon(&path)));
-                }
-                _ => (),
-            }
-        }
-    });
-}
-
-fn load_icon(path: &Path) -> Icon {
-    let (icon_rgba, icon_width, icon_height) = {
-        let image = image::open(path).expect("Failed to open icon path");
-        use image::{GenericImageView, Pixel};
-        let (width, height) = image.dimensions();
-        let mut rgba = Vec::with_capacity((width * height) as usize * 4);
-        for (_, _, pixel) in image.pixels() {
-            rgba.extend_from_slice(&pixel.to_rgba().data);
-        }
-        (rgba, width, height)
-    };
-    Icon::from_rgba(icon_rgba, icon_width, icon_height).expect("Failed to open icon")
-}

examples/window_run_return.rs

@@ -1,58 +0,0 @@
-// Limit this example to only compatible platforms.
-#[cfg(any(
-    target_os = "windows",
-    target_os = "macos",
-    target_os = "linux",
-    target_os = "dragonfly",
-    target_os = "freebsd",
-    target_os = "netbsd",
-    target_os = "openbsd"
-))]
-fn main() {
-    use std::{thread::sleep, time::Duration};
-    use winit::{
-        event::{Event, WindowEvent},
-        event_loop::{ControlFlow, EventLoop},
-        platform::desktop::EventLoopExtDesktop,
-        window::WindowBuilder,
-    };
-    let mut event_loop = EventLoop::new();
-
-    let _window = WindowBuilder::new()
-        .with_title("A fantastic window!")
-        .build(&event_loop)
-        .unwrap();
-
-    let mut quit = false;
-
-    while !quit {
-        event_loop.run_return(|event, _, control_flow| {
-            if let Event::WindowEvent { event, .. } = &event {
-                // Print only Window events to reduce noise
-                println!("{:?}", event);
-            }
-
-            match event {
-                Event::WindowEvent {
-                    event: WindowEvent::CloseRequested,
-                    ..
-                } => {
-                    quit = true;
-                    *control_flow = ControlFlow::Exit;
-                }
-                Event::EventsCleared => {
-                    *control_flow = ControlFlow::Exit;
-                }
-                _ => *control_flow = ControlFlow::Wait,
-            }
-        });
-
-        // Sleep for 1/60 second to simulate rendering
-        sleep(Duration::from_millis(16));
-    }
-}
-
-#[cfg(any(target_os = "ios", target_os = "android", target_arch = "wasm32"))]
-fn main() {
-    println!("This platform doesn't support run_return.");
-}

rustfmt.toml

@@ -1,3 +0,0 @@
-force_explicit_abi=true
-use_field_init_shorthand=true
-# merge_imports=true

src/api_transition.rs

@@ -0,0 +1,101 @@
+
+//! This temporary module generates types that wrap around the old API (winit v5 and below) and
+//! expose the new API (winit v6 and above).
+//!
+//! This is temporary so that existing backends can smoothly transition. After all implementations
+//! have finished transitionning, this module should disappear.
+
+macro_rules! gen_api_transition {
+    () => {
+        pub struct EventsLoop {
+            windows: ::std::sync::Mutex<Vec<::std::sync::Arc<Window>>>,
+            interrupted: ::std::sync::atomic::AtomicBool,
+        }
+
+        impl EventsLoop {
+            pub fn new() -> EventsLoop {
+                EventsLoop {
+                    windows: ::std::sync::Mutex::new(vec![]),
+                    interrupted: ::std::sync::atomic::AtomicBool::new(false),
+                }
+            }
+
+            pub fn interrupt(&self) {
+                self.interrupted.store(true, ::std::sync::atomic::Ordering::Relaxed);
+            }
+
+            pub fn poll_events<F>(&self, mut callback: F)
+                where F: FnMut(::Event)
+            {
+                let mut windows = self.windows.lock().unwrap();
+                for window in windows.iter() {
+                    for event in window.poll_events() {
+                        callback(::Event::WindowEvent {
+                            window_id: ::WindowId(WindowId(&**window as *const Window as usize)),
+                            event: event,
+                        })
+                    }
+                }
+            }
+
+            pub fn run_forever<F>(&self, mut callback: F)
+                where F: FnMut(::Event)
+            {
+                self.interrupted.store(false, ::std::sync::atomic::Ordering::Relaxed);
+
+                // Yeah that's a very bad implementation.
+                loop {
+                    self.poll_events(|e| callback(e));
+                    ::std::thread::sleep_ms(5);
+                    if self.interrupted.load(::std::sync::atomic::Ordering::Relaxed) {
+                        break;
+                    }
+                }
+            }
+        }
+
+        #[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+        pub struct WindowId(usize);
+
+        pub struct Window2 {
+            pub window: ::std::sync::Arc<Window>,
+            events_loop: ::std::sync::Weak<EventsLoop>,
+        }
+
+        impl ::std::ops::Deref for Window2 {
+            type Target = Window;
+            #[inline]
+            fn deref(&self) -> &Window {
+                &*self.window
+            }
+        }
+
+        impl Window2 {
+            pub fn new(events_loop: ::std::sync::Arc<EventsLoop>, window: &::WindowAttributes,
+                       pl_attribs: &PlatformSpecificWindowBuilderAttributes)
+                       -> Result<Window2, CreationError>
+            {
+                let win = ::std::sync::Arc::new(try!(Window::new(window, pl_attribs)));
+                events_loop.windows.lock().unwrap().push(win.clone());
+                Ok(Window2 {
+                    window: win,
+                    events_loop: ::std::sync::Arc::downgrade(&events_loop),
+                })
+            }
+
+            #[inline]
+            pub fn id(&self) -> WindowId {
+                WindowId(&*self.window as *const Window as usize)
+            }
+        }
+
+        impl Drop for Window2 {
+            fn drop(&mut self) {
+                if let Some(ev) = self.events_loop.upgrade() {
+                    let mut windows = ev.windows.lock().unwrap();
+                    windows.retain(|w| &**w as *const Window != &*self.window as *const _);
+                }
+            }
+        }
+    };
+}

src/dpi.rs

@@ -1,331 +0,0 @@
-//! DPI is important, so read the docs for this module if you don't want to be confused.
-//!
-//! Originally, `winit` dealt entirely in physical pixels (excluding unintentional inconsistencies), but now all
-//! window-related functions both produce and consume logical pixels. Monitor-related functions still use physical
-//! pixels, as do any context-related functions in `glutin`.
-//!
-//! If you've never heard of these terms before, then you're not alone, and this documentation will explain the
-//! concepts.
-//!
-//! Modern screens have a defined physical resolution, most commonly 1920x1080. Indepedent of that is the amount of
-//! space the screen occupies, which is to say, the height and width in millimeters. The relationship between these two
-//! measurements is the *pixel density*. Mobile screens require a high pixel density, as they're held close to the
-//! eyes. Larger displays also require a higher pixel density, hence the growing presence of 1440p and 4K displays.
-//!
-//! So, this presents a problem. Let's say we want to render a square 100px button. It will occupy 100x100 of the
-//! screen's pixels, which in many cases, seems perfectly fine. However, because this size doesn't account for the
-//! screen's dimensions or pixel density, the button's size can vary quite a bit. On a 4K display, it would be unusably
-//! small.
-//!
-//! That's a description of what happens when the button is 100x100 *physical* pixels. Instead, let's try using 100x100
-//! *logical* pixels. To map logical pixels to physical pixels, we simply multiply by the DPI (dots per inch) factor.
-//! On a "typical" desktop display, the DPI factor will be 1.0, so 100x100 logical pixels equates to 100x100 physical
-//! pixels. However, a 1440p display may have a DPI factor of 1.25, so the button is rendered as 125x125 physical pixels.
-//! Ideally, the button now has approximately the same perceived size across varying displays.
-//!
-//! Failure to account for the DPI factor can create a badly degraded user experience. Most notably, it can make users
-//! feel like they have bad eyesight, which will potentially cause them to think about growing elderly, resulting in
-//! them entering an existential panic. Once users enter that state, they will no longer be focused on your application.
-//!
-//! There are two ways to get the DPI factor:
-//! - You can track the [`HiDpiFactorChanged`](crate::event::WindowEvent::HiDpiFactorChanged) event of your
-//!   windows. This event is sent any time the DPI factor changes, either because the window moved to another monitor,
-//!   or because the user changed the configuration of their screen.
-//! - You can also retrieve the DPI factor of a monitor by calling
-//!   [`MonitorHandle::hidpi_factor`](crate::monitor::MonitorHandle::hidpi_factor), or the
-//!   current DPI factor applied to a window by calling
-//!   [`Window::hidpi_factor`](crate::window::Window::hidpi_factor), which is roughly equivalent
-//!   to `window.current_monitor().hidpi_factor()`.
-//!
-//! Depending on the platform, the window's actual DPI factor may only be known after
-//! the event loop has started and your window has been drawn once. To properly handle these cases,
-//! the most robust way is to monitor the [`HiDpiFactorChanged`](crate::event::WindowEvent::HiDpiFactorChanged)
-//! event and dynamically adapt your drawing logic to follow the DPI factor.
-//!
-//! Here's an overview of what sort of DPI factors you can expect, and where they come from:
-//! - **Windows:** On Windows 8 and 10, per-monitor scaling is readily configured by users from the display settings.
-//! While users are free to select any option they want, they're only given a selection of "nice" DPI factors, i.e.
-//! 1.0, 1.25, 1.5... on Windows 7, the DPI factor is global and changing it requires logging out.
-//! - **macOS:** The buzzword is "retina displays", which have a DPI factor of 2.0. Otherwise, the DPI factor is 1.0.
-//! Intermediate DPI factors are never used, thus 1440p displays/etc. aren't properly supported. It's possible for any
-//! display to use that 2.0 DPI factor, given the use of the command line.
-//! - **X11:** On X11, we calculate the DPI factor based on the millimeter dimensions provided by XRandR. This can
-//! result in a wide range of possible values, including some interesting ones like 1.0833333333333333. This can be
-//! overridden using the `WINIT_HIDPI_FACTOR` environment variable, though that's not recommended.
-//! - **Wayland:** On Wayland, DPI factors are set per-screen by the server, and are always integers (most often 1 or 2).
-//! - **iOS:** DPI factors are both constant and device-specific on iOS.
-//! - **Android:** This feature isn't yet implemented on Android, so the DPI factor will always be returned as 1.0.
-//! - **Web:** DPI factors are handled by the browser and will always be 1.0 for your application.
-//!
-//! The window's logical size is conserved across DPI changes, resulting in the physical size changing instead. This
-//! may be surprising on X11, but is quite standard elsewhere. Physical size changes always produce a
-//! [`Resized`](crate::event::WindowEvent::Resized) event, even on platforms where no resize actually occurs,
-//! such as macOS and Wayland. As a result, it's not necessary to separately handle
-//! [`HiDpiFactorChanged`](crate::event::WindowEvent::HiDpiFactorChanged) if you're only listening for size.
-//!
-//! Your GPU has no awareness of the concept of logical pixels, and unless you like wasting pixel density, your
-//! framebuffer's size should be in physical pixels.
-//!
-//! `winit` will send [`Resized`](crate::event::WindowEvent::Resized) events whenever a window's logical size
-//! changes, and [`HiDpiFactorChanged`](crate::event::WindowEvent::HiDpiFactorChanged) events
-//! whenever the DPI factor changes. Receiving either of these events means that the physical size of your window has
-//! changed, and you should recompute it using the latest values you received for each. If the logical size and the
-//! DPI factor change simultaneously, `winit` will send both events together; thus, it's recommended to buffer
-//! these events and process them at the end of the queue.
-//!
-//! If you never received any [`HiDpiFactorChanged`](crate::event::WindowEvent::HiDpiFactorChanged) events,
-//! then your window's DPI factor is 1.
-
-/// Checks that the DPI factor is a normal positive `f64`.
-///
-/// All functions that take a DPI factor assert that this will return `true`. If you're sourcing DPI factors from
-/// anywhere other than winit, it's recommended to validate them using this function before passing them to winit;
-/// otherwise, you risk panics.
-#[inline]
-pub fn validate_hidpi_factor(dpi_factor: f64) -> bool {
-    dpi_factor.is_sign_positive() && dpi_factor.is_normal()
-}
-
-/// A position represented in logical pixels.
-///
-/// The position is stored as floats, so please be careful. Casting floats to integers truncates the fractional part,
-/// which can cause noticable issues. To help with that, an `Into<(i32, i32)>` implementation is provided which
-/// does the rounding for you.
-#[derive(Debug, Copy, Clone, PartialEq)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub struct LogicalPosition {
-    pub x: f64,
-    pub y: f64,
-}
-
-impl LogicalPosition {
-    #[inline]
-    pub fn new(x: f64, y: f64) -> Self {
-        LogicalPosition { x, y }
-    }
-
-    #[inline]
-    pub fn from_physical<T: Into<PhysicalPosition>>(physical: T, dpi_factor: f64) -> Self {
-        physical.into().to_logical(dpi_factor)
-    }
-
-    #[inline]
-    pub fn to_physical(&self, dpi_factor: f64) -> PhysicalPosition {
-        assert!(validate_hidpi_factor(dpi_factor));
-        let x = self.x * dpi_factor;
-        let y = self.y * dpi_factor;
-        PhysicalPosition::new(x, y)
-    }
-}
-
-impl From<(f64, f64)> for LogicalPosition {
-    #[inline]
-    fn from((x, y): (f64, f64)) -> Self {
-        Self::new(x, y)
-    }
-}
-
-impl From<(i32, i32)> for LogicalPosition {
-    #[inline]
-    fn from((x, y): (i32, i32)) -> Self {
-        Self::new(x as f64, y as f64)
-    }
-}
-
-impl Into<(f64, f64)> for LogicalPosition {
-    #[inline]
-    fn into(self) -> (f64, f64) {
-        (self.x, self.y)
-    }
-}
-
-impl Into<(i32, i32)> for LogicalPosition {
-    /// Note that this rounds instead of truncating.
-    #[inline]
-    fn into(self) -> (i32, i32) {
-        (self.x.round() as _, self.y.round() as _)
-    }
-}
-
-/// A position represented in physical pixels.
-///
-/// The position is stored as floats, so please be careful. Casting floats to integers truncates the fractional part,
-/// which can cause noticable issues. To help with that, an `Into<(i32, i32)>` implementation is provided which
-/// does the rounding for you.
-#[derive(Debug, Copy, Clone, PartialEq)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub struct PhysicalPosition {
-    pub x: f64,
-    pub y: f64,
-}
-
-impl PhysicalPosition {
-    #[inline]
-    pub fn new(x: f64, y: f64) -> Self {
-        PhysicalPosition { x, y }
-    }
-
-    #[inline]
-    pub fn from_logical<T: Into<LogicalPosition>>(logical: T, dpi_factor: f64) -> Self {
-        logical.into().to_physical(dpi_factor)
-    }
-
-    #[inline]
-    pub fn to_logical(&self, dpi_factor: f64) -> LogicalPosition {
-        assert!(validate_hidpi_factor(dpi_factor));
-        let x = self.x / dpi_factor;
-        let y = self.y / dpi_factor;
-        LogicalPosition::new(x, y)
-    }
-}
-
-impl From<(f64, f64)> for PhysicalPosition {
-    #[inline]
-    fn from((x, y): (f64, f64)) -> Self {
-        Self::new(x, y)
-    }
-}
-
-impl From<(i32, i32)> for PhysicalPosition {
-    #[inline]
-    fn from((x, y): (i32, i32)) -> Self {
-        Self::new(x as f64, y as f64)
-    }
-}
-
-impl Into<(f64, f64)> for PhysicalPosition {
-    #[inline]
-    fn into(self) -> (f64, f64) {
-        (self.x, self.y)
-    }
-}
-
-impl Into<(i32, i32)> for PhysicalPosition {
-    /// Note that this rounds instead of truncating.
-    #[inline]
-    fn into(self) -> (i32, i32) {
-        (self.x.round() as _, self.y.round() as _)
-    }
-}
-
-/// A size represented in logical pixels.
-///
-/// The size is stored as floats, so please be careful. Casting floats to integers truncates the fractional part,
-/// which can cause noticable issues. To help with that, an `Into<(u32, u32)>` implementation is provided which
-/// does the rounding for you.
-#[derive(Debug, Copy, Clone, PartialEq)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub struct LogicalSize {
-    pub width: f64,
-    pub height: f64,
-}
-
-impl LogicalSize {
-    #[inline]
-    pub fn new(width: f64, height: f64) -> Self {
-        LogicalSize { width, height }
-    }
-
-    #[inline]
-    pub fn from_physical<T: Into<PhysicalSize>>(physical: T, dpi_factor: f64) -> Self {
-        physical.into().to_logical(dpi_factor)
-    }
-
-    #[inline]
-    pub fn to_physical(&self, dpi_factor: f64) -> PhysicalSize {
-        assert!(validate_hidpi_factor(dpi_factor));
-        let width = self.width * dpi_factor;
-        let height = self.height * dpi_factor;
-        PhysicalSize::new(width, height)
-    }
-}
-
-impl From<(f64, f64)> for LogicalSize {
-    #[inline]
-    fn from((width, height): (f64, f64)) -> Self {
-        Self::new(width, height)
-    }
-}
-
-impl From<(u32, u32)> for LogicalSize {
-    #[inline]
-    fn from((width, height): (u32, u32)) -> Self {
-        Self::new(width as f64, height as f64)
-    }
-}
-
-impl Into<(f64, f64)> for LogicalSize {
-    #[inline]
-    fn into(self) -> (f64, f64) {
-        (self.width, self.height)
-    }
-}
-
-impl Into<(u32, u32)> for LogicalSize {
-    /// Note that this rounds instead of truncating.
-    #[inline]
-    fn into(self) -> (u32, u32) {
-        (self.width.round() as _, self.height.round() as _)
-    }
-}
-
-/// A size represented in physical pixels.
-///
-/// The size is stored as floats, so please be careful. Casting floats to integers truncates the fractional part,
-/// which can cause noticable issues. To help with that, an `Into<(u32, u32)>` implementation is provided which
-/// does the rounding for you.
-#[derive(Debug, Copy, Clone, PartialEq)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub struct PhysicalSize {
-    pub width: f64,
-    pub height: f64,
-}
-
-impl PhysicalSize {
-    #[inline]
-    pub fn new(width: f64, height: f64) -> Self {
-        PhysicalSize { width, height }
-    }
-
-    #[inline]
-    pub fn from_logical<T: Into<LogicalSize>>(logical: T, dpi_factor: f64) -> Self {
-        logical.into().to_physical(dpi_factor)
-    }
-
-    #[inline]
-    pub fn to_logical(&self, dpi_factor: f64) -> LogicalSize {
-        assert!(validate_hidpi_factor(dpi_factor));
-        let width = self.width / dpi_factor;
-        let height = self.height / dpi_factor;
-        LogicalSize::new(width, height)
-    }
-}
-
-impl From<(f64, f64)> for PhysicalSize {
-    #[inline]
-    fn from((width, height): (f64, f64)) -> Self {
-        Self::new(width, height)
-    }
-}
-
-impl From<(u32, u32)> for PhysicalSize {
-    #[inline]
-    fn from((width, height): (u32, u32)) -> Self {
-        Self::new(width as f64, height as f64)
-    }
-}
-
-impl Into<(f64, f64)> for PhysicalSize {
-    #[inline]
-    fn into(self) -> (f64, f64) {
-        (self.width, self.height)
-    }
-}
-
-impl Into<(u32, u32)> for PhysicalSize {
-    /// Note that this rounds instead of truncating.
-    #[inline]
-    fn into(self) -> (u32, u32) {
-        (self.width.round() as _, self.height.round() as _)
-    }
-}

src/error.rs

@@ -1,82 +0,0 @@
-use std::{error, fmt};
-
-use crate::platform_impl;
-
-/// An error whose cause it outside Winit's control.
-#[derive(Debug)]
-pub enum ExternalError {
-    /// The operation is not supported by the backend.
-    NotSupported(NotSupportedError),
-    /// The OS cannot perform the operation.
-    Os(OsError),
-}
-
-/// The error type for when the requested operation is not supported by the backend.
-#[derive(Clone)]
-pub struct NotSupportedError {
-    _marker: (),
-}
-
-/// The error type for when the OS cannot perform the requested operation.
-#[derive(Debug)]
-pub struct OsError {
-    line: u32,
-    file: &'static str,
-    error: platform_impl::OsError,
-}
-
-impl NotSupportedError {
-    #[inline]
-    #[allow(dead_code)]
-    pub(crate) fn new() -> NotSupportedError {
-        NotSupportedError { _marker: () }
-    }
-}
-
-impl OsError {
-    #[allow(dead_code)]
-    pub(crate) fn new(line: u32, file: &'static str, error: platform_impl::OsError) -> OsError {
-        OsError { line, file, error }
-    }
-}
-
-#[allow(unused_macros)]
-macro_rules! os_error {
-    ($error:expr) => {{
-        crate::error::OsError::new(line!(), file!(), $error)
-    }};
-}
-
-impl fmt::Display for OsError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        f.pad(&format!(
-            "os error at {}:{}: {}",
-            self.file, self.line, self.error
-        ))
-    }
-}
-
-impl fmt::Display for ExternalError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        match self {
-            ExternalError::NotSupported(e) => e.fmt(f),
-            ExternalError::Os(e) => e.fmt(f),
-        }
-    }
-}
-
-impl fmt::Debug for NotSupportedError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        f.debug_struct("NotSupportedError").finish()
-    }
-}
-
-impl fmt::Display for NotSupportedError {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        f.pad("the requested operation is not supported by Winit")
-    }
-}
-
-impl error::Error for OsError {}
-impl error::Error for ExternalError {}
-impl error::Error for NotSupportedError {}

src/event.rs

@@ -1,586 +0,0 @@
-//! The `Event` enum and assorted supporting types.
-//!
-//! These are sent to the closure given to [`EventLoop::run(...)`][event_loop_run], where they get
-//! processed and used to modify the program state. For more details, see the root-level documentation.
-//!
-//! [event_loop_run]: crate::event_loop::EventLoop::run
-use instant::Instant;
-use std::path::PathBuf;
-
-use crate::{
-    dpi::{LogicalPosition, LogicalSize},
-    window::WindowId,
-};
-
-pub mod device;
-
-/// A generic event.
-#[derive(Clone, Debug, PartialEq)]
-pub enum Event<T> {
-    /// Emitted when the OS sends an event to a winit window.
-    WindowEvent {
-        window_id: WindowId,
-        event: WindowEvent,
-    },
-
-    /// Emitted when a mouse device has generated input.
-    MouseEvent(device::MouseId, device::MouseEvent),
-    /// Emitted when a keyboard device has generated input.
-    KeyboardEvent(device::KeyboardId, device::KeyboardEvent),
-    HidEvent(device::HidId, device::HidEvent),
-    /// Emitted when a gamepad/joystick device has generated input.
-    GamepadEvent(device::GamepadHandle, device::GamepadEvent),
-
-    /// Emitted when an event is sent from [`EventLoopProxy::send_event`](../event_loop/struct.EventLoopProxy.html#method.send_event)
-    UserEvent(T),
-    /// Emitted when new events arrive from the OS to be processed.
-    NewEvents(StartCause),
-    /// Emitted when all of the event loop's events have been processed and control flow is about
-    /// to be taken away from the program.
-    EventsCleared,
-
-    /// Emitted when the event loop is being shut down. This is irreversable - if this event is
-    /// emitted, it is guaranteed to be the last event emitted.
-    LoopDestroyed,
-
-    /// Emitted when the application has been suspended.
-    Suspended,
-
-    /// Emitted when the application has been resumed.
-    Resumed,
-}
-
-impl<T> Event<T> {
-    pub fn map_nonuser_event<U>(self) -> Result<Event<U>, Event<T>> {
-        use self::Event::*;
-        match self {
-            UserEvent(_) => Err(self),
-            WindowEvent { window_id, event } => Ok(WindowEvent { window_id, event }),
-            MouseEvent(id, event) => Ok(MouseEvent(id, event)),
-            KeyboardEvent(id, event) => Ok(KeyboardEvent(id, event)),
-            HidEvent(id, event) => Ok(HidEvent(id, event)),
-            GamepadEvent(id, event) => Ok(GamepadEvent(id, event)),
-            NewEvents(cause) => Ok(NewEvents(cause)),
-            EventsCleared => Ok(EventsCleared),
-            LoopDestroyed => Ok(LoopDestroyed),
-            Suspended => Ok(Suspended),
-            Resumed => Ok(Resumed),
-        }
-    }
-}
-
-/// The reason the event loop is resuming.
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-pub enum StartCause {
-    /// Sent if the time specified by `ControlFlow::WaitUntil` has been reached. Contains the
-    /// moment the timeout was requested and the requested resume time. The actual resume time is
-    /// guaranteed to be equal to or after the requested resume time.
-    ResumeTimeReached {
-        start: Instant,
-        requested_resume: Instant,
-    },
-
-    /// Sent if the OS has new events to send to the window, after a wait was requested. Contains
-    /// the moment the wait was requested and the resume time, if requested.
-    WaitCancelled {
-        start: Instant,
-        requested_resume: Option<Instant>,
-    },
-
-    /// Sent if the event loop is being resumed after the loop's control flow was set to
-    /// `ControlFlow::Poll`.
-    Poll,
-
-    /// Sent once, immediately after `run` is called. Indicates that the loop was just initialized.
-    Init,
-}
-
-/// An event from a `Window`.
-#[derive(Clone, Debug, PartialEq)]
-pub enum WindowEvent {
-    /// The size of the window has changed. Contains the client area's new dimensions.
-    Resized(LogicalSize),
-
-    /// The position of the window has changed. Contains the window's new position.
-    Moved(LogicalPosition),
-
-    /// The window has been requested to close.
-    CloseRequested,
-
-    /// The window has been destroyed.
-    Destroyed,
-
-    /// A file has been dropped into the window.
-    ///
-    /// When the user drops multiple files at once, this event will be emitted for each file
-    /// separately.
-    DroppedFile(PathBuf),
-
-    /// A file is being hovered over the window.
-    ///
-    /// When the user hovers multiple files at once, this event will be emitted for each file
-    /// separately.
-    HoveredFile(PathBuf),
-
-    /// A file was hovered, but has exited the window.
-    ///
-    /// There will be a single `HoveredFileCancelled` event triggered even if multiple files were
-    /// hovered.
-    HoveredFileCancelled,
-
-    /// The window received a unicode character.
-    ReceivedCharacter(char),
-
-    /// The window gained or lost focus.
-    ///
-    /// The parameter is true if the window has gained focus, and false if it has lost focus.
-    Focused(bool),
-
-    /// An event from the keyboard has been received.
-    KeyboardInput(KeyboardInput),
-
-    /// The cursor has moved on the window.
-    CursorMoved {
-        /// (x,y) coords in pixels relative to the top-left corner of the window. Because the range of this data is
-        /// limited by the display area and it may have been transformed by the OS to implement effects such as cursor
-        /// acceleration, it should not be used to implement non-cursor-like interactions such as 3D camera control.
-        position: LogicalPosition,
-        modifiers: ModifiersState,
-    },
-
-    /// The cursor has entered the window.
-    CursorEntered,
-
-    /// The cursor has left the window.
-    CursorLeft,
-
-    /// A mouse wheel movement or touchpad scroll occurred.
-    MouseWheel {
-        delta: MouseScrollDelta,
-        phase: TouchPhase,
-        modifiers: ModifiersState,
-    },
-
-    /// An mouse button press has been received.
-    MouseInput {
-        state: ElementState,
-        button: MouseButton,
-        modifiers: ModifiersState,
-    },
-
-    /// Touchpad pressure event.
-    ///
-    /// At the moment, only supported on Apple forcetouch-capable macbooks.
-    /// The parameters are: pressure level (value between 0 and 1 representing how hard the touchpad
-    /// is being pressed) and stage (integer representing the click level).
-    TouchpadPressure { pressure: f32, stage: i64 },
-
-    /// The OS or application has requested that the window be redrawn.
-    RedrawRequested,
-
-    /// Touch event has been received
-    Touch(Touch),
-
-    /// The DPI factor of the window has changed.
-    ///
-    /// The following user actions can cause DPI changes:
-    ///
-    /// * Changing the display's resolution.
-    /// * Changing the display's DPI factor (e.g. in Control Panel on Windows).
-    /// * Moving the window to a display with a different DPI factor.
-    ///
-    /// For more information about DPI in general, see the [`dpi`](crate::dpi) module.
-    HiDpiFactorChanged(f64),
-}
-
-/// A keyboard input event.
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub struct KeyboardInput {
-    /// Identifies the physical key pressed
-    ///
-    /// This should not change if the user adjusts the host's keyboard map. Use when the physical location of the
-    /// key is more important than the key's host GUI semantics, such as for movement controls in a first-person
-    /// game.
-    pub scancode: ScanCode,
-
-    pub state: ElementState,
-
-    /// Identifies the semantic meaning of the key
-    ///
-    /// Use when the semantics of the key are more important than the physical location of the key, such as when
-    /// implementing appropriate behavior for "page up."
-    pub virtual_keycode: Option<VirtualKeyCode>,
-
-    /// Modifier keys active at the time of this input.
-    ///
-    /// This is tracked internally to avoid tracking errors arising from modifier key state changes when events from
-    /// this device are not being delivered to the application, e.g. due to keyboard focus being elsewhere.
-    pub modifiers: ModifiersState,
-}
-
-/// Touch input state.
-#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub enum TouchPhase {
-    Started,
-    Moved,
-    Ended,
-    /// The touch has been cancelled by the OS.
-    ///
-    /// This can occur in a variety of situations, such as the window losing focus.
-    Cancelled,
-}
-
-/// Represents a touch event
-///
-/// Every time the user touches the screen, a new `Start` event with an unique
-/// identifier for the finger is generated. When the finger is lifted, an `End`
-/// event is generated with the same finger id.
-///
-/// After a `Start` event has been emitted, there may be zero or more `Move`
-/// events when the finger is moved or the touch pressure changes.
-///
-/// The finger id may be reused by the system after an `End` event. The user
-/// should assume that a new `Start` event received with the same id has nothing
-/// to do with the old finger and is a new finger.
-///
-/// A `Cancelled` event is emitted when the system has canceled tracking this
-/// touch, such as when the window loses focus, or on iOS if the user moves the
-/// device against their face.
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub struct Touch {
-    pub phase: TouchPhase,
-    pub location: LogicalPosition,
-    /// Describes how hard the screen was pressed. May be `None` if the platform
-    /// does not support pressure sensitivity.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - Only available on **iOS** 9.0+ and **Windows** 8+.
-    pub force: Option<Force>,
-    /// Unique identifier of a finger.
-    ///
-    /// This may get reused by the system after the touch ends.
-    pub id: u64,
-}
-
-/// Describes the force of a touch event
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum Force {
-    /// On iOS, the force is calibrated so that the same number corresponds to
-    /// roughly the same amount of pressure on the screen regardless of the
-    /// device.
-    Calibrated {
-        /// The force of the touch, where a value of 1.0 represents the force of
-        /// an average touch (predetermined by the system, not user-specific).
-        ///
-        /// The force reported by Apple Pencil is measured along the axis of the
-        /// pencil. If you want a force perpendicular to the device, you need to
-        /// calculate this value using the `altitude_angle` value.
-        force: f64,
-        /// The maximum possible force for a touch.
-        ///
-        /// The value of this field is sufficiently high to provide a wide
-        /// dynamic range for values of the `force` field.
-        max_possible_force: f64,
-        /// The altitude (in radians) of the stylus.
-        ///
-        /// A value of 0 radians indicates that the stylus is parallel to the
-        /// surface. The value of this property is Pi/2 when the stylus is
-        /// perpendicular to the surface.
-        altitude_angle: Option<f64>,
-    },
-    /// If the platform reports the force as normalized, we have no way of
-    /// knowing how much pressure 1.0 corresponds to – we know it's the maximum
-    /// amount of force, but as to how much force, you might either have to
-    /// press really really hard, or not hard at all, depending on the device.
-    Normalized(f64),
-}
-
-impl Force {
-    /// Returns the force normalized to the range between 0.0 and 1.0 inclusive.
-    /// Instead of normalizing the force, you should prefer to handle
-    /// `Force::Calibrated` so that the amount of force the user has to apply is
-    /// consistent across devices.
-    pub fn normalized(&self) -> f64 {
-        match self {
-            Force::Calibrated {
-                force,
-                max_possible_force,
-                altitude_angle,
-            } => {
-                let force = match altitude_angle {
-                    Some(altitude_angle) => force / altitude_angle.sin(),
-                    None => *force,
-                };
-                force / max_possible_force
-            }
-            Force::Normalized(force) => *force,
-        }
-    }
-}
-
-/// Hardware-dependent keyboard scan code.
-pub type ScanCode = u32;
-
-/// Identifier for a specific analog axis on some device.
-pub type AxisId = u32;
-
-/// Identifier for a specific button on some device.
-pub type ButtonId = u32;
-
-/// The input state of a key or button.
-#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy, PartialOrd, Ord)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub enum ElementState {
-    Pressed,
-    Released,
-}
-
-/// A button on a mouse.
-#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy, PartialOrd, Ord)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub enum MouseButton {
-    Left,
-    Right,
-    Middle,
-    Other(u8),
-}
-
-/// A difference in the mouse scroll wheel state.
-#[derive(Debug, Clone, Copy, PartialEq)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub enum MouseScrollDelta {
-    /// Amount in lines or rows to scroll in the horizontal
-    /// and vertical directions.
-    ///
-    /// Positive values indicate movement forward
-    /// (away from the user) or rightwards.
-    LineDelta(f32, f32),
-    /// Amount in pixels to scroll in the horizontal and
-    /// vertical direction.
-    ///
-    /// Scroll events are expressed as a PixelDelta if
-    /// supported by the device (eg. a touchpad) and
-    /// platform.
-    PixelDelta(LogicalPosition),
-}
-
-/// Symbolic name of a keyboard key.
-#[derive(Debug, Hash, Ord, PartialOrd, PartialEq, Eq, Clone, Copy)]
-#[repr(u32)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-pub enum VirtualKeyCode {
-    /// The '1' key over the letters.
-    Key1,
-    /// The '2' key over the letters.
-    Key2,
-    /// The '3' key over the letters.
-    Key3,
-    /// The '4' key over the letters.
-    Key4,
-    /// The '5' key over the letters.
-    Key5,
-    /// The '6' key over the letters.
-    Key6,
-    /// The '7' key over the letters.
-    Key7,
-    /// The '8' key over the letters.
-    Key8,
-    /// The '9' key over the letters.
-    Key9,
-    /// The '0' key over the 'O' and 'P' keys.
-    Key0,
-
-    A,
-    B,
-    C,
-    D,
-    E,
-    F,
-    G,
-    H,
-    I,
-    J,
-    K,
-    L,
-    M,
-    N,
-    O,
-    P,
-    Q,
-    R,
-    S,
-    T,
-    U,
-    V,
-    W,
-    X,
-    Y,
-    Z,
-
-    /// The Escape key, next to F1.
-    Escape,
-
-    F1,
-    F2,
-    F3,
-    F4,
-    F5,
-    F6,
-    F7,
-    F8,
-    F9,
-    F10,
-    F11,
-    F12,
-    F13,
-    F14,
-    F15,
-    F16,
-    F17,
-    F18,
-    F19,
-    F20,
-    F21,
-    F22,
-    F23,
-    F24,
-
-    /// Print Screen/SysRq.
-    Snapshot,
-    /// Scroll Lock.
-    Scroll,
-    /// Pause/Break key, next to Scroll lock.
-    Pause,
-
-    /// `Insert`, next to Backspace.
-    Insert,
-    Home,
-    Delete,
-    End,
-    PageDown,
-    PageUp,
-
-    Left,
-    Up,
-    Right,
-    Down,
-
-    /// The Backspace key, right over Enter.
-    // TODO: rename
-    Back,
-    /// The Enter key.
-    Return,
-    /// The space bar.
-    Space,
-
-    /// The "Compose" key on Linux.
-    Compose,
-
-    Caret,
-
-    Numlock,
-    Numpad0,
-    Numpad1,
-    Numpad2,
-    Numpad3,
-    Numpad4,
-    Numpad5,
-    Numpad6,
-    Numpad7,
-    Numpad8,
-    Numpad9,
-
-    AbntC1,
-    AbntC2,
-    Add,
-    Apostrophe,
-    Apps,
-    At,
-    Ax,
-    Backslash,
-    Calculator,
-    Capital,
-    Colon,
-    Comma,
-    Convert,
-    Decimal,
-    Divide,
-    Equals,
-    Grave,
-    Kana,
-    Kanji,
-    LAlt,
-    LBracket,
-    LControl,
-    LShift,
-    LWin,
-    Mail,
-    MediaSelect,
-    MediaStop,
-    Minus,
-    Multiply,
-    Mute,
-    MyComputer,
-    NavigateForward,  // also called "Prior"
-    NavigateBackward, // also called "Next"
-    NextTrack,
-    NoConvert,
-    NumpadComma,
-    NumpadEnter,
-    NumpadEquals,
-    OEM102,
-    Period,
-    PlayPause,
-    Power,
-    PrevTrack,
-    RAlt,
-    RBracket,
-    RControl,
-    RShift,
-    RWin,
-    Semicolon,
-    Slash,
-    Sleep,
-    Stop,
-    Subtract,
-    Sysrq,
-    Tab,
-    Underline,
-    Unlabeled,
-    VolumeDown,
-    VolumeUp,
-    Wake,
-    WebBack,
-    WebFavorites,
-    WebForward,
-    WebHome,
-    WebRefresh,
-    WebSearch,
-    WebStop,
-    Yen,
-    Copy,
-    Paste,
-    Cut,
-}
-
-/// The current state of the keyboard modifiers
-///
-/// Each field of this struct represents a modifier and is `true` if this modifier is active.
-#[derive(Default, Debug, Hash, PartialEq, Eq, Clone, Copy)]
-#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
-#[cfg_attr(feature = "serde", serde(default))]
-pub struct ModifiersState {
-    /// The "shift" key
-    pub shift: bool,
-    /// The "control" key
-    pub ctrl: bool,
-    /// The "alt" key
-    pub alt: bool,
-    /// The "logo" key
-    ///
-    /// This is the "windows" key on PC and "command" key on Mac.
-    pub logo: bool,
-}

src/event/device.rs

@@ -1,363 +0,0 @@
-//! Raw hardware events that are not associated with any particular window.
-//!
-//! Useful for interactions that diverge significantly from a conventional 2D GUI, such as 3D camera or first-person
-//! game controls. Many physical actions, such as mouse movement, can produce both device and window events. Because
-//! window events typically arise from virtual devices (corresponding to GUI cursors and keyboard focus) the device IDs
-//! may not match.
-//!
-//! All attached devices are guaranteed to emit an `Added` event upon the initialization of the event loop.
-//!
-//! Note that device events are always delivered regardless of window focus.
-
-use crate::{
-    dpi::PhysicalPosition,
-    event::{AxisId, ButtonId, ElementState, KeyboardInput, MouseButton, ModifiersState},
-    event_loop::EventLoop,
-    platform_impl,
-};
-use std::{fmt, io};
-
-/// A hint suggesting the type of button that was pressed.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
-pub enum GamepadButton {
-    Start,
-    Select,
-
-    /// The north face button.
-    ///
-    /// * Nintendo: X
-    /// * Playstation: Triangle
-    /// * XBox: Y
-    North,
-    /// The south face button.
-    ///
-    /// * Nintendo: B
-    /// * Playstation: X
-    /// * XBox: A
-    South,
-    /// The east face button.
-    ///
-    /// * Nintendo: A
-    /// * Playstation: Circle
-    /// * XBox: B
-    East,
-    /// The west face button.
-    ///
-    /// * Nintendo: Y
-    /// * Playstation: Square
-    /// * XBox: X
-    West,
-
-    LeftStick,
-    RightStick,
-
-    LeftTrigger,
-    RightTrigger,
-
-    LeftShoulder,
-    RightShoulder,
-
-    DPadUp,
-    DPadDown,
-    DPadLeft,
-    DPadRight,
-}
-
-/// A hint suggesting the type of axis that moved.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
-pub enum GamepadAxis {
-    LeftStickX,
-    LeftStickY,
-
-    RightStickX,
-    RightStickY,
-
-    LeftTrigger,
-    RightTrigger,
-}
-
-/// A given joystick's side on the gamepad.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
-pub enum Side {
-    Left,
-    Right,
-}
-
-/// Raw mouse events.
-///
-/// See the module-level docs for more information.
-#[derive(Debug, Copy, Clone, PartialEq)]
-pub enum MouseEvent {
-    /// A mouse device has been added.
-    Added,
-    /// A mouse device has been removed.
-    Removed,
-    /// A mouse button has been pressed or released.
-    Button {
-        state: ElementState,
-        button: MouseButton,
-    },
-    /// Relative change in physical position of a pointing device.
-    ///
-    /// This represents raw, unfiltered physical motion, NOT the position of the mouse. Accordingly,
-    /// the values provided here are the change in position of the mouse since the previous
-    /// `MovedRelative` event.
-    MovedRelative(f64, f64),
-    /// Change in absolute position of a pointing device.
-    ///
-    /// The `PhysicalPosition` value is the new position of the cursor relative to the desktop. This
-    /// generally doesn't get output by standard mouse devices, but can get output from tablet devices.
-    MovedAbsolute(PhysicalPosition),
-    /// Change in rotation of mouse wheel.
-    Wheel(f64, f64),
-}
-
-/// Raw keyboard events.
-///
-/// See the module-level docs for more information.
-#[derive(Debug, Copy, Clone, PartialEq, Hash)]
-pub enum KeyboardEvent {
-    /// A keyboard device has been added.
-    Added,
-    /// A keyboard device has been removed.
-    Removed,
-    /// A key has been pressed or released.
-    Input(KeyboardInput),
-    ModifiersChanged(ModifiersState),
-}
-
-/// Raw HID event.
-///
-/// See the module-level docs for more information.
-#[derive(Debug, Clone, PartialEq, Hash)]
-pub enum HidEvent {
-    /// A Human Interface Device device has been added.
-    Added,
-    /// A Human Interface Device device has been removed.
-    Removed,
-    /// A raw data packet has been received from the Human Interface Device.
-    Data(Box<[u8]>),
-}
-
-/// Gamepad/joystick events.
-///
-/// These can be generated by any of a variety of game controllers, including (but not limited to)
-/// gamepads, joysicks, and HOTAS devices.
-#[derive(Debug, Copy, Clone, PartialEq, PartialOrd)]
-pub enum GamepadEvent {
-    /// A gamepad/joystick device has been added.
-    Added,
-    /// A gamepad/joystick device has been removed.
-    Removed,
-    /// An analog axis value on the gamepad/joystick has changed.
-    ///
-    /// Winit does NOT provide [deadzone filtering](https://www.quora.com/What-does-the-term-joystick-deadzone-mean),
-    /// and such filtering may have to be provided by API users for joystick axes.
-    Axis {
-        axis_id: AxisId,
-        /// A hint regarding the physical axis that moved.
-        ///
-        /// On traditional gamepads (such as an X360 controller) this can be assumed to have a
-        /// non-`None` value; however, other joystick devices with more varied layouts generally won't
-        /// provide a value here.
-        ///
-        /// TODO: DISCUSS CONTROLLER MAPPING ONCE WE FIGURE OUT WHAT WE'RE DOING THERE.
-        axis: Option<GamepadAxis>,
-        value: f64,
-        /// Whether or not this axis has also produced a [`GamepadEvent::Stick`] event.
-        stick: bool,
-    },
-    /// A two-axis joystick's value has changed.
-    ///
-    /// This is mainly provided to assist with deadzone calculation, as proper deadzones should be
-    /// calculated via the combined distance of each joystick axis from the center of the joystick,
-    /// rather than per-axis.
-    ///
-    /// Note that this is only guaranteed to be emitted for traditionally laid out gamepads. More
-    /// complex joysticks generally don't report specifics of their layout to the operating system,
-    /// preventing Winit from automatically aggregating their axis input into two-axis stick events.
-    Stick {
-        /// The X axis' ID.
-        x_id: AxisId,
-        /// The Y axis' ID.
-        y_id: AxisId,
-        x_value: f64,
-        y_value: f64,
-        /// Which joystick side produced this event.
-        side: Side,
-    },
-    Button {
-        button_id: ButtonId,
-        /// A hint regarding the location of the button.
-        ///
-        /// The caveats on the `Axis.hint` field also apply here.
-        button: Option<GamepadButton>,
-        state: ElementState,
-    },
-}
-
-/// Error reported if a rumble attempt unexpectedly failed.
-#[derive(Debug)]
-pub enum RumbleError {
-    /// The device is no longer connected.
-    DeviceNotConnected,
-    /// An unknown OS error has occured.
-    OsError(io::Error),
-}
-
-/// A typed identifier for a mouse device.
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct MouseId(pub(crate) platform_impl::MouseId);
-/// A typed identifier for a keyboard device.
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct KeyboardId(pub(crate) platform_impl::KeyboardId);
-/// A typed if for a Human Interface Device.
-#[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct HidId(pub(crate) platform_impl::HidId);
-/// A handle to a gamepad/joystick device.
-#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct GamepadHandle(pub(crate) platform_impl::GamepadHandle);
-
-impl MouseId {
-    /// Returns a dummy `MouseId`, useful for unit testing. The only guarantee made about the return
-    /// value of this function is that it will always be equal to itself and to future values returned
-    /// by this function.  No other guarantees are made. This may be equal to a real `MouseId`.
-    ///
-    /// **Passing this into a winit function will result in undefined behavior.**
-    pub unsafe fn dummy() -> Self {
-        MouseId(platform_impl::MouseId::dummy())
-    }
-
-    /// Enumerate all attached mouse devices.
-    pub fn enumerate<T>(event_loop: &EventLoop<T>) -> impl '_ + Iterator<Item = Self> {
-        platform_impl::MouseId::enumerate(&event_loop.event_loop)
-    }
-
-    /// Check to see if this mouse device is still connected.
-    pub fn is_connected(&self) -> bool {
-        self.0.is_connected()
-    }
-}
-
-impl KeyboardId {
-    /// Returns a dummy `KeyboardId`, useful for unit testing. The only guarantee made about the return
-    /// value of this function is that it will always be equal to itself and to future values returned
-    /// by this function.  No other guarantees are made. This may be equal to a real `KeyboardId`.
-    ///
-    /// **Passing this into a winit function will result in undefined behavior.**
-    pub unsafe fn dummy() -> Self {
-        KeyboardId(platform_impl::KeyboardId::dummy())
-    }
-
-    /// Enumerate all attached keyboard devices.
-    pub fn enumerate<T>(event_loop: &EventLoop<T>) -> impl '_ + Iterator<Item = Self> {
-        platform_impl::KeyboardId::enumerate(&event_loop.event_loop)
-    }
-
-    /// Check to see if this keyboard device is still connected.
-    pub fn is_connected(&self) -> bool {
-        self.0.is_connected()
-    }
-}
-
-impl HidId {
-    /// Returns a dummy `HidId`, useful for unit testing. The only guarantee made about the return
-    /// value of this function is that it will always be equal to itself and to future values returned
-    /// by this function.  No other guarantees are made. This may be equal to a real `HidId`.
-    ///
-    /// **Passing this into a winit function will result in undefined behavior.**
-    pub unsafe fn dummy() -> Self {
-        HidId(platform_impl::HidId::dummy())
-    }
-
-    /// Enumerate all attached keyboard devices.
-    pub fn enumerate<T>(event_loop: &EventLoop<T>) -> impl '_ + Iterator<Item = Self> {
-        platform_impl::HidId::enumerate(&event_loop.event_loop)
-    }
-
-    /// Check to see if this keyboard device is still connected.
-    pub fn is_connected(&self) -> bool {
-        self.0.is_connected()
-    }
-}
-
-impl GamepadHandle {
-    /// Returns a dummy `GamepadHandle`, useful for unit testing. The only guarantee made about the return
-    /// value of this function is that it will always be equal to itself and to future values returned
-    /// by this function.  No other guarantees are made. This may be equal to a real `GamepadHandle`.
-    ///
-    /// **Passing this into a winit function will result in undefined behavior.**
-    pub unsafe fn dummy() -> Self {
-        GamepadHandle(platform_impl::GamepadHandle::dummy())
-    }
-
-    /// Enumerate all attached gamepad/joystick devices.
-    pub fn enumerate<T>(event_loop: &EventLoop<T>) -> impl '_ + Iterator<Item = Self> {
-        platform_impl::GamepadHandle::enumerate(&event_loop.event_loop)
-    }
-
-    /// Check to see if this gamepad/joystick device is still connected.
-    pub fn is_connected(&self) -> bool {
-        self.0.is_connected()
-    }
-
-    /// Attempts to set the rumble values for an attached controller. Input values are automatically
-    /// bound to a [`0.0`, `1.0`] range.
-    ///
-    /// Certain gamepads assign different usages to the left and right motors - for example, X360
-    /// controllers treat the left motor as a low-frequency rumble and the right motor as a
-    /// high-frequency rumble. However, this cannot necessarily be assumed for all gamepad devices.
-    ///
-    /// Note that, if the given gamepad does not support rumble, no error value gets thrown.
-    pub fn rumble(&self, left_speed: f64, right_speed: f64) -> Result<(), RumbleError> {
-        self.0.rumble(left_speed, right_speed)
-    }
-
-    /// Gets the port number assigned to the gamepad.
-    pub fn port(&self) -> Option<u8> {
-        self.0.port()
-    }
-
-    /// Gets the controller's battery level.
-    ///
-    /// If the controller doesn't report a battery level, this returns `None`.
-    pub fn battery_level(&self) -> Option<BatteryLevel> {
-        self.0.battery_level()
-    }
-}
-
-/// TODO: IS THIS THE RIGHT ABSTRACTION FOR ALL PLATFORMS?
-/// This is exposed in its current form because it's what Microsoft does for XInput, and that's my
-/// (@Osspial's) main point of reference. If you're implementing this on a different platform and
-/// that platform exposes battery level differently, please bring it up in the tracking issue!
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash, PartialOrd, Ord)]
-pub enum BatteryLevel {
-    Empty,
-    Low,
-    Medium,
-    Full,
-}
-
-impl fmt::Debug for MouseId {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        self.0.fmt(f)
-    }
-}
-
-impl fmt::Debug for KeyboardId {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        self.0.fmt(f)
-    }
-}
-
-impl fmt::Debug for HidId {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        self.0.fmt(f)
-    }
-}
-
-impl fmt::Debug for GamepadHandle {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        self.0.fmt(f)
-    }
-}

src/event_loop.rs

@@ -1,228 +0,0 @@
-//! The `EventLoop` struct and assorted supporting types, including `ControlFlow`.
-//!
-//! If you want to send custom events to the event loop, use [`EventLoop::create_proxy()`][create_proxy]
-//! to acquire an [`EventLoopProxy`][event_loop_proxy] and call its [`send_event`][send_event] method.
-//!
-//! See the root-level documentation for information on how to create and use an event loop to
-//! handle events.
-//!
-//! [create_proxy]: crate::event_loop::EventLoop::create_proxy
-//! [event_loop_proxy]: crate::event_loop::EventLoopProxy
-//! [send_event]: crate::event_loop::EventLoopProxy::send_event
-use instant::Instant;
-use std::ops::Deref;
-use std::{error, fmt};
-
-use crate::{event::Event, monitor::MonitorHandle, platform_impl};
-
-/// Provides a way to retrieve events from the system and from the windows that were registered to
-/// the events loop.
-///
-/// An `EventLoop` can be seen more or less as a "context". Calling `EventLoop::new()`
-/// initializes everything that will be required to create windows. For example on Linux creating
-/// an event loop opens a connection to the X or Wayland server.
-///
-/// To wake up an `EventLoop` from a another thread, see the `EventLoopProxy` docs.
-///
-/// Note that the `EventLoop` cannot be shared across threads (due to platform-dependant logic
-/// forbidding it), as such it is neither `Send` nor `Sync`. If you need cross-thread access, the
-/// `Window` created from this `EventLoop` _can_ be sent to an other thread, and the
-/// `EventLoopProxy` allows you to wake up an `EventLoop` from another thread.
-///
-pub struct EventLoop<T: 'static> {
-    pub(crate) event_loop: platform_impl::EventLoop<T>,
-    pub(crate) _marker: ::std::marker::PhantomData<*mut ()>, // Not Send nor Sync
-}
-
-/// Target that associates windows with an `EventLoop`.
-///
-/// This type exists to allow you to create new windows while Winit executes
-/// your callback. `EventLoop` will coerce into this type (`impl<T> Deref for
-/// EventLoop<T>`), so functions that take this as a parameter can also take
-/// `&EventLoop`.
-pub struct EventLoopWindowTarget<T: 'static> {
-    pub(crate) p: platform_impl::EventLoopWindowTarget<T>,
-    pub(crate) _marker: ::std::marker::PhantomData<*mut ()>, // Not Send nor Sync
-}
-
-impl<T> fmt::Debug for EventLoop<T> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.pad("EventLoop { .. }")
-    }
-}
-
-impl<T> fmt::Debug for EventLoopWindowTarget<T> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.pad("EventLoopWindowTarget { .. }")
-    }
-}
-
-/// Set by the user callback given to the `EventLoop::run` method.
-///
-/// Indicates the desired behavior of the event loop after [`Event::EventsCleared`][events_cleared]
-/// is emitted. Defaults to `Poll`.
-///
-/// ## Persistency
-/// Almost every change is persistent between multiple calls to the event loop closure within a
-/// given run loop. The only exception to this is `Exit` which, once set, cannot be unset. Changes
-/// are **not** persistent between multiple calls to `run_return` - issuing a new call will reset
-/// the control flow to `Poll`.
-///
-/// [events_cleared]: crate::event::Event::EventsCleared
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
-pub enum ControlFlow {
-    /// When the current loop iteration finishes, immediately begin a new iteration regardless of
-    /// whether or not new events are available to process.
-    Poll,
-    /// When the current loop iteration finishes, suspend the thread until another event arrives.
-    Wait,
-    /// When the current loop iteration finishes, suspend the thread until either another event
-    /// arrives or the given time is reached.
-    WaitUntil(Instant),
-    /// Send a `LoopDestroyed` event and stop the event loop. This variant is *sticky* - once set,
-    /// `control_flow` cannot be changed from `Exit`, and any future attempts to do so will result
-    /// in the `control_flow` parameter being reset to `Exit`.
-    Exit,
-}
-
-impl Default for ControlFlow {
-    #[inline(always)]
-    fn default() -> ControlFlow {
-        ControlFlow::Poll
-    }
-}
-
-impl EventLoop<()> {
-    /// Builds a new event loop with a `()` as the user event type.
-    ///
-    /// ***For cross-platform compatibility, the `EventLoop` must be created on the main thread.***
-    /// Attempting to create the event loop on a different thread will panic. This restriction isn't
-    /// strictly necessary on all platforms, but is imposed to eliminate any nasty surprises when
-    /// porting to platforms that require it. `EventLoopExt::new_any_thread` functions are exposed
-    /// in the relevant `platform` module if the target platform supports creating an event loop on
-    /// any thread.
-    ///
-    /// Usage will result in display backend initialisation, this can be controlled on linux
-    /// using an environment variable `WINIT_UNIX_BACKEND`. Legal values are `x11` and `wayland`.
-    /// If it is not set, winit will try to connect to a wayland connection, and if it fails will
-    /// fallback on x11. If this variable is set with any other value, winit will panic.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **iOS:** Can only be called on the main thread.
-    pub fn new() -> EventLoop<()> {
-        EventLoop::<()>::with_user_event()
-    }
-}
-
-impl<T> EventLoop<T> {
-    /// Builds a new event loop.
-    ///
-    /// All caveats documented in [`EventLoop::new`] apply to this function.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **iOS:** Can only be called on the main thread.
-    pub fn with_user_event() -> EventLoop<T> {
-        EventLoop {
-            event_loop: platform_impl::EventLoop::new(),
-            _marker: ::std::marker::PhantomData,
-        }
-    }
-
-    /// Hijacks the calling thread and initializes the winit event loop with the provided
-    /// closure. Since the closure is `'static`, it must be a `move` closure if it needs to
-    /// access any data from the calling context.
-    ///
-    /// See the [`ControlFlow`] docs for information on how changes to `&mut ControlFlow` impact the
-    /// event loop's behavior.
-    ///
-    /// Any values not passed to this function will *not* be dropped.
-    ///
-    /// [`ControlFlow`]: crate::event_loop::ControlFlow
-    #[inline]
-    pub fn run<F>(self, event_handler: F) -> !
-    where
-        F: 'static + FnMut(Event<T>, &EventLoopWindowTarget<T>, &mut ControlFlow),
-    {
-        self.event_loop.run(event_handler)
-    }
-
-    /// Creates an `EventLoopProxy` that can be used to dispatch user events to the main event loop.
-    pub fn create_proxy(&self) -> EventLoopProxy<T> {
-        EventLoopProxy {
-            event_loop_proxy: self.event_loop.create_proxy(),
-        }
-    }
-
-    /// Returns the list of all the monitors available on the system.
-    #[inline]
-    pub fn available_monitors(&self) -> impl Iterator<Item = MonitorHandle> {
-        self.event_loop
-            .available_monitors()
-            .into_iter()
-            .map(|inner| MonitorHandle { inner })
-    }
-
-    /// Returns the primary monitor of the system.
-    #[inline]
-    pub fn primary_monitor(&self) -> MonitorHandle {
-        MonitorHandle {
-            inner: self.event_loop.primary_monitor(),
-        }
-    }
-}
-
-impl<T> Deref for EventLoop<T> {
-    type Target = EventLoopWindowTarget<T>;
-    fn deref(&self) -> &EventLoopWindowTarget<T> {
-        self.event_loop.window_target()
-    }
-}
-
-/// Used to send custom events to `EventLoop`.
-pub struct EventLoopProxy<T: 'static> {
-    event_loop_proxy: platform_impl::EventLoopProxy<T>,
-}
-
-impl<T: 'static> Clone for EventLoopProxy<T> {
-    fn clone(&self) -> Self {
-        Self {
-            event_loop_proxy: self.event_loop_proxy.clone(),
-        }
-    }
-}
-
-impl<T: 'static> EventLoopProxy<T> {
-    /// Send an event to the `EventLoop` from which this proxy was created. This emits a
-    /// `UserEvent(event)` event in the event loop, where `event` is the value passed to this
-    /// function.
-    ///
-    /// Returns an `Err` if the associated `EventLoop` no longer exists.
-    pub fn send_event(&self, event: T) -> Result<(), EventLoopClosed> {
-        self.event_loop_proxy.send_event(event)
-    }
-}
-
-impl<T: 'static> fmt::Debug for EventLoopProxy<T> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.pad("EventLoopProxy { .. }")
-    }
-}
-
-/// The error that is returned when an `EventLoopProxy` attempts to wake up an `EventLoop` that
-/// no longer exists.
-#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
-pub struct EventLoopClosed;
-
-impl fmt::Display for EventLoopClosed {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "{}", error::Error::description(self))
-    }
-}
-
-impl error::Error for EventLoopClosed {
-    fn description(&self) -> &str {
-        "Tried to wake up a closed `EventLoop`"
-    }
-}

src/events.rs

@@ -0,0 +1,339 @@
+use std::path::PathBuf;
+use WindowId;
+
+#[derive(Clone, Debug)]
+pub enum Event {
+    WindowEvent {
+        window_id: WindowId,
+        event: WindowEvent,
+    }
+}
+
+#[derive(Clone, Debug)]
+pub enum WindowEvent {
+    // TODO: remove ; can break the lib internally so be careful
+    Awakened,
+
+    /// The size of the window has changed.
+    Resized(u32, u32),
+
+    /// The position of the window has changed.
+    Moved(i32, i32),
+
+    /// The window has been closed.
+    Closed,
+
+    /// A file has been dropped into the window.
+    DroppedFile(PathBuf),
+
+    /// The window received a unicode character.
+    ReceivedCharacter(char),
+
+    /// The window gained or lost focus.
+    ///
+    /// The parameter is true if the window has gained focus, and false if it has lost focus.
+    Focused(bool),
+
+    /// An event from the keyboard has been received.
+    KeyboardInput(ElementState, ScanCode, Option<VirtualKeyCode>, ModifiersState),
+
+    /// The cursor has moved on the window.
+    ///
+    /// The parameter are the (x,y) coords in pixels relative to the top-left corner of the window.
+    MouseMoved(i32, i32),
+
+    /// The cursor has entered the window.
+    MouseEntered,
+
+    /// The cursor has left the window.
+    MouseLeft,
+
+    /// A mouse wheel movement or touchpad scroll occurred.
+    MouseWheel(MouseScrollDelta, TouchPhase),
+
+    /// An event from the mouse has been received.
+    MouseInput(ElementState, MouseButton),
+
+    /// Touchpad pressure event.
+    ///
+    /// At the moment, only supported on Apple forcetouch-capable macbooks.
+    /// The parameters are: pressure level (value between 0 and 1 representing how hard the touchpad
+    /// is being pressed) and stage (integer representing the click level).
+    TouchpadPressure(f32, i64),
+
+    /// The window needs to be redrawn.
+    Refresh,
+
+    /// App has been suspended or resumed.
+    ///
+    /// The parameter is true if app was suspended, and false if it has been resumed.
+    Suspended(bool),
+
+    /// Touch event has been received
+    Touch(Touch)
+}
+
+#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
+pub enum TouchPhase {
+    Started,
+    Moved,
+    Ended,
+    Cancelled
+}
+
+#[derive(Debug, Clone, Copy)]
+/// Represents touch event
+///
+/// Every time user touches screen new Start event with some finger id is generated.
+/// When the finger is removed from the screen End event with same id is generated.
+///
+/// For every id there will be at least 2 events with phases Start and End (or Cancelled).
+/// There may be 0 or more Move events.
+///
+///
+/// Depending on platform implementation id may or may not be reused by system after End event.
+///
+/// Gesture regonizer using this event should assume that Start event received with same id
+/// as previously received End event is a new finger and has nothing to do with an old one.
+///
+/// Touch may be cancelled if for example window lost focus.
+pub struct Touch {
+    pub phase: TouchPhase,
+    pub location: (f64,f64),
+    /// unique identifier of a finger.
+    pub id: u64
+}
+
+pub type ScanCode = u8;
+
+#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
+pub enum ElementState {
+    Pressed,
+    Released,
+}
+
+#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
+pub enum MouseButton {
+    Left,
+    Right,
+    Middle,
+    Other(u8),
+}
+
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum MouseScrollDelta {
+	/// Amount in lines or rows to scroll in the horizontal
+	/// and vertical directions.
+	///
+	/// Positive values indicate movement forward
+	/// (away from the user) or rightwards.
+	LineDelta(f32, f32),
+	/// Amount in pixels to scroll in the horizontal and
+	/// vertical direction.
+	///
+	/// Scroll events are expressed as a PixelDelta if
+	/// supported by the device (eg. a touchpad) and
+	/// platform.
+	PixelDelta(f32, f32)
+}
+
+#[derive(Debug, Hash, PartialEq, Eq, Clone, Copy)]
+pub enum VirtualKeyCode {
+    /// The '1' key over the letters.
+    Key1,
+    /// The '2' key over the letters.
+    Key2,
+    /// The '3' key over the letters.
+    Key3,
+    /// The '4' key over the letters.
+    Key4,
+    /// The '5' key over the letters.
+    Key5,
+    /// The '6' key over the letters.
+    Key6,
+    /// The '7' key over the letters.
+    Key7,
+    /// The '8' key over the letters.
+    Key8,
+    /// The '9' key over the letters.
+    Key9,
+    /// The '0' key over the 'O' and 'P' keys.
+    Key0,
+
+    A,
+    B,
+    C,
+    D,
+    E,
+    F,
+    G,
+    H,
+    I,
+    J,
+    K,
+    L,
+    M,
+    N,
+    O,
+    P,
+    Q,
+    R,
+    S,
+    T,
+    U,
+    V,
+    W,
+    X,
+    Y,
+    Z,
+
+    /// The Escape key, next to F1.
+    Escape,
+
+    F1,
+    F2,
+    F3,
+    F4,
+    F5,
+    F6,
+    F7,
+    F8,
+    F9,
+    F10,
+    F11,
+    F12,
+    F13,
+    F14,
+    F15,
+
+    /// Print Screen/SysRq.
+    Snapshot,
+    /// Scroll Lock.
+    Scroll,
+    /// Pause/Break key, next to Scroll lock.
+    Pause,
+
+    /// `Insert`, next to Backspace.
+    Insert,
+    Home,
+    Delete,
+    End,
+    PageDown,
+    PageUp,
+
+    Left,
+    Up,
+    Right,
+    Down,
+
+    /// The Backspace key, right over Enter.
+    // TODO: rename
+    Back,
+    /// The Enter key.
+    Return,
+    /// The space bar.
+    Space,
+
+    /// The "Compose" key on Linux.
+    Compose,
+
+    Numlock,
+    Numpad0,
+    Numpad1,
+    Numpad2,
+    Numpad3,
+    Numpad4,
+    Numpad5,
+    Numpad6,
+    Numpad7,
+    Numpad8,
+    Numpad9,
+
+    AbntC1,
+    AbntC2,
+    Add,
+    Apostrophe,
+    Apps,
+    At,
+    Ax,
+    Backslash,
+    Calculator,
+    Capital,
+    Colon,
+    Comma,
+    Convert,
+    Decimal,
+    Divide,
+    Equals,
+    Grave,
+    Kana,
+    Kanji,
+    LAlt,
+    LBracket,
+    LControl,
+    LMenu,
+    LShift,
+    LWin,
+    Mail,
+    MediaSelect,
+    MediaStop,
+    Minus,
+    Multiply,
+    Mute,
+    MyComputer,
+    NavigateForward, // also called "Prior"
+    NavigateBackward, // also called "Next"
+    NextTrack,
+    NoConvert,
+    NumpadComma,
+    NumpadEnter,
+    NumpadEquals,
+    OEM102,
+    Period,
+    PlayPause,
+    Power,
+    PrevTrack,
+    RAlt,
+    RBracket,
+    RControl,
+    RMenu,
+    RShift,
+    RWin,
+    Semicolon,
+    Slash,
+    Sleep,
+    Stop,
+    Subtract,
+    Sysrq,
+    Tab,
+    Underline,
+    Unlabeled,
+    VolumeDown,
+    VolumeUp,
+    Wake,
+    WebBack,
+    WebFavorites,
+    WebForward,
+    WebHome,
+    WebRefresh,
+    WebSearch,
+    WebStop,
+    Yen,
+}
+
+/// Represents the current state of the keyboard modifiers
+///
+/// Each field of this struct represents a modifier and is `true` if this modifier is active.
+#[derive(Default, Debug, Clone, Copy)]
+pub struct ModifiersState {
+    /// The "shift" key
+    pub shift: bool,
+    /// The "control" key
+    pub ctrl: bool,
+    /// The "alt" key
+    pub alt: bool,
+    /// The "logo" key
+    ///
+    /// This is the "windows" key on PC and "command" key on Mac.
+    pub logo: bool
+}

src/icon.rs

@@ -1,96 +0,0 @@
-use std::{error::Error, fmt, mem};
-
-#[repr(C)]
-#[derive(Debug)]
-pub(crate) struct Pixel {
-    pub(crate) r: u8,
-    pub(crate) g: u8,
-    pub(crate) b: u8,
-    pub(crate) a: u8,
-}
-
-pub(crate) const PIXEL_SIZE: usize = mem::size_of::<Pixel>();
-
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-/// An error produced when using `Icon::from_rgba` with invalid arguments.
-pub enum BadIcon {
-    /// Produced when the length of the `rgba` argument isn't divisible by 4, thus `rgba` can't be
-    /// safely interpreted as 32bpp RGBA pixels.
-    ByteCountNotDivisibleBy4 { byte_count: usize },
-    /// Produced when the number of pixels (`rgba.len() / 4`) isn't equal to `width * height`.
-    /// At least one of your arguments is incorrect.
-    DimensionsVsPixelCount {
-        width: u32,
-        height: u32,
-        width_x_height: usize,
-        pixel_count: usize,
-    },
-}
-
-impl fmt::Display for BadIcon {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        let msg = match self {
-            &BadIcon::ByteCountNotDivisibleBy4 { byte_count } => format!(
-                "The length of the `rgba` argument ({:?}) isn't divisible by 4, making it impossible to interpret as 32bpp RGBA pixels.",
-                byte_count,
-            ),
-            &BadIcon::DimensionsVsPixelCount {
-                width,
-                height,
-                width_x_height,
-                pixel_count,
-            } => format!(
-                "The specified dimensions ({:?}x{:?}) don't match the number of pixels supplied by the `rgba` argument ({:?}). For those dimensions, the expected pixel count is {:?}.",
-                width, height, pixel_count, width_x_height,
-            ),
-        };
-        write!(f, "{}", msg)
-    }
-}
-
-impl Error for BadIcon {
-    fn description(&self) -> &str {
-        "A valid icon cannot be created from these arguments"
-    }
-
-    fn cause(&self) -> Option<&dyn Error> {
-        Some(self)
-    }
-}
-
-#[derive(Debug, Clone, PartialEq, Eq)]
-/// An icon used for the window titlebar, taskbar, etc.
-pub struct Icon {
-    pub(crate) rgba: Vec<u8>,
-    pub(crate) width: u32,
-    pub(crate) height: u32,
-}
-
-impl Icon {
-    /// Creates an `Icon` from 32bpp RGBA data.
-    ///
-    /// The length of `rgba` must be divisible by 4, and `width * height` must equal
-    /// `rgba.len() / 4`. Otherwise, this will return a `BadIcon` error.
-    pub fn from_rgba(rgba: Vec<u8>, width: u32, height: u32) -> Result<Self, BadIcon> {
-        if rgba.len() % PIXEL_SIZE != 0 {
-            return Err(BadIcon::ByteCountNotDivisibleBy4 {
-                byte_count: rgba.len(),
-            });
-        }
-        let pixel_count = rgba.len() / PIXEL_SIZE;
-        if pixel_count != (width * height) as usize {
-            Err(BadIcon::DimensionsVsPixelCount {
-                width,
-                height,
-                width_x_height: (width * height) as usize,
-                pixel_count,
-            })
-        } else {
-            Ok(Icon {
-                rgba,
-                width,
-                height,
-            })
-        }
-    }
-}

src/lib.rs

@@ -1,144 +1,404 @@
-//! Winit allows you to build a window on as many platforms as possible.
+//! Winit allows you to build a window on as many platforms as possible. 
 //!
 //! # Building a window
 //!
-//! Before you can build a [`Window`], you first need to build an [`EventLoop`]. This is done with the
-//! [`EventLoop::new()`] function.
+//! Before you can build a window, you first need to build an `EventsLoop`. This is done with the
+//! `EventsLoop::new()` function. Example:
 //!
 //! ```no_run
-//! use winit::event_loop::EventLoop;
-//! let event_loop = EventLoop::new();
+//! use winit::EventsLoop;
+//! let events_loop = EventsLoop::new();
 //! ```
 //!
-//! Once this is done there are two ways to create a [`Window`]:
+//! Once this is done there are two ways to create a window:
 //!
-//!  - Calling [`Window::new(&event_loop)`][window_new].
-//!  - Calling [`let builder = WindowBuilder::new()`][window_builder_new] then [`builder.build(&event_loop)`][window_builder_build].
+//!  - Calling `Window::new(&events_loop)`.
+//!  - Calling `let builder = WindowBuilder::new()` then `builder.build(&events_loop)`.
 //!
-//! The first way is the simplest way and will give you default values for everything.
+//! The first way is the simpliest way and will give you default values for everything.
 //!
-//! The second way allows you to customize the way your [`Window`] will look and behave by modifying
-//! the fields of the [`WindowBuilder`] object before you create the [`Window`].
+//! The second way allows you to customize the way your window will look and behave by modifying
+//! the fields of the `WindowBuilder` object before you create the window.
 //!
-//! # Event handling
+//! # Events handling
 //!
-//! Once a [`Window`] has been created, it will generate different *events*. A [`Window`] object can
-//! generate a [`WindowEvent`] when certain things happen, like whenever the user moves their mouse
-//! or presses a key inside the [`Window`]. Devices can generate a [`DeviceEvent`] directly as well,
-//! which contains unfiltered event data that isn't specific to a certain window. Some user
-//! activity, like mouse movement, can generate both a [`WindowEvent`] *and* a [`DeviceEvent`]. You
-//! can also create and handle your own custom [`UserEvent`]s, if desired.
+//! Once a window has been created, it will *generate events*. For example whenever the user moves
+//! the window, resizes the window, moves the mouse, etc. an event is generated.
 //!
-//! Events can be retreived by using an [`EventLoop`]. A [`Window`] will send its events to the
-//! [`EventLoop`] object it was created with.
+//! The events generated by a window can be retreived from the `EventsLoop` the window was created
+//! with.
 //!
-//! You do this by calling [`event_loop.run(...)`][event_loop_run]. This function will run forever
-//! unless `control_flow` is set to [`ControlFlow`]`::`[`Exit`], at which point [`Event`]`::`[`LoopDestroyed`]
-//! is emitted and the entire program terminates.
+//! There are two ways to do so. The first is to call `events_loop.poll_events(...)`, which will
+//! retreive all the events pending on the windows and immediately return after no new event is
+//! available. You usually want to use this method in application that render continuously on the
+//! screen, such as video games.
 //!
 //! ```no_run
-//! use winit::{
-//!     event::{Event, WindowEvent},
-//!     event_loop::{ControlFlow, EventLoop},
-//!     window::WindowBuilder,
-//! };
+//! use winit::Event;
+//! use winit::WindowEvent;
+//! # use winit::EventsLoop;
+//! # let events_loop = EventsLoop::new();
 //!
-//! let event_loop = EventLoop::new();
-//! let window = WindowBuilder::new().build(&event_loop).unwrap();
+//! loop {
+//!     events_loop.poll_events(|event| {
+//!         match event {
+//!             Event::WindowEvent { event: WindowEvent::Resized(w, h), .. } => {
+//!                 println!("The window was resized to {}x{}", w, h);
+//!             },
+//!             _ => ()
+//!         }
+//!     });
+//! }
+//! ```
 //!
-//! event_loop.run(move |event, _, control_flow| {
+//! The second way is to call `events_loop.run_forever(...)`. As its name tells, it will run
+//! forever unless it is stopped by calling `events_loop.interrupt()`.
+//!
+//! ```no_run
+//! use winit::Event;
+//! use winit::WindowEvent;
+//! # use winit::EventsLoop;
+//! # let events_loop = EventsLoop::new();
+//!
+//! events_loop.run_forever(|event| {
 //!     match event {
-//!         Event::EventsCleared => {
-//!             // Application update code.
-//!
-//!             // Queue a RedrawRequested event.
-//!             window.request_redraw();
+//!         Event::WindowEvent { event: WindowEvent::Closed, .. } => {
+//!             println!("The window was closed ; stopping");
+//!             events_loop.interrupt();
 //!         },
-//!         Event::WindowEvent {
-//!             event: WindowEvent::RedrawRequested,
-//!             ..
-//!         } => {
-//!             // Redraw the application.
-//!             //
-//!             // It's preferrable to render in this event rather than in EventsCleared, since
-//!             // rendering in here allows the program to gracefully handle redraws requested
-//!             // by the OS.
-//!         },
-//!         Event::WindowEvent {
-//!             event: WindowEvent::CloseRequested,
-//!             ..
-//!         } => {
-//!             println!("The close button was pressed; stopping");
-//!             *control_flow = ControlFlow::Exit
-//!         },
-//!         // ControlFlow::Poll continuously runs the event loop, even if the OS hasn't
-//!         // dispatched any events. This is ideal for games and similar applications.
-//!         _ => *control_flow = ControlFlow::Poll,
-//!         // ControlFlow::Wait pauses the event loop if no events are available to process.
-//!         // This is ideal for non-game applications that only update in response to user
-//!         // input, and uses significantly less power/CPU time than ControlFlow::Poll.
-//!         // _ => *control_flow = ControlFlow::Wait,
+//!         _ => ()
 //!     }
 //! });
 //! ```
 //!
-//! If you use multiple [`Window`]s, [`Event`]`::`[`WindowEvent`] has a member named `window_id`. You can
-//! compare it with the value returned by the [`id()`][window_id_fn] method of [`Window`] in order to know which
-//! [`Window`] has received the event.
+//! If you use multiple windows, the `WindowEvent` event has a member named `window_id`. You can
+//! compare it with the value returned by the `id()` method of `Window` in order to know which
+//! window has received the event.
 //!
 //! # Drawing on the window
 //!
-//! Winit doesn't provide any function that allows drawing on a [`Window`]. However it allows you to
-//! retrieve the raw handle of the window (see the [`platform`] module), which in turn allows you
-//! to create an OpenGL/Vulkan/DirectX/Metal/etc. context that will draw on the [`Window`].
+//! Winit doesn't provide any function that allows drawing on a window. However it allows you to
+//! retreive the raw handle of the window (see the `os` module for that), which in turn allows you
+//! to create an OpenGL/Vulkan/DirectX/Metal/etc. context that will draw on the window.
 //!
-//! [`EventLoop`]: event_loop::EventLoop
-//! [`EventLoop::new()`]: event_loop::EventLoop::new
-//! [event_loop_run]: event_loop::EventLoop::run
-//! [`ControlFlow`]: event_loop::ControlFlow
-//! [`Exit`]: event_loop::ControlFlow::Exit
-//! [`Window`]: window::Window
-//! [`WindowBuilder`]: window::WindowBuilder
-//! [window_new]: window::Window::new
-//! [window_builder_new]: window::WindowBuilder::new
-//! [window_builder_build]: window::WindowBuilder::build
-//! [window_id_fn]: window::Window::id
-//! [`Event`]: event::Event
-//! [`WindowEvent`]: event::WindowEvent
-//! [`DeviceEvent`]: event::DeviceEvent
-//! [`UserEvent`]: event::Event::UserEvent
-//! [`LoopDestroyed`]: event::Event::LoopDestroyed
-//! [`platform`]: platform
 
-#![deny(rust_2018_idioms)]
-#![deny(intra_doc_link_resolution_failure)]
-
-#[allow(unused_imports)]
 #[macro_use]
 extern crate lazy_static;
+
 #[macro_use]
-extern crate log;
-#[cfg(feature = "serde")]
-#[macro_use]
-extern crate serde;
-#[macro_use]
-#[cfg(any(target_os = "ios", target_os = "windows"))]
-extern crate bitflags;
+extern crate shared_library;
+
+extern crate libc;
+
+#[cfg(target_os = "windows")]
+extern crate winapi;
+#[cfg(target_os = "windows")]
+extern crate kernel32;
+#[cfg(target_os = "windows")]
+extern crate shell32;
+#[cfg(target_os = "windows")]
+extern crate gdi32;
+#[cfg(target_os = "windows")]
+extern crate user32;
+#[cfg(target_os = "windows")]
+extern crate dwmapi;
 #[cfg(any(target_os = "macos", target_os = "ios"))]
 #[macro_use]
 extern crate objc;
-#[cfg(all(target_arch = "wasm32", feature = "std_web"))]
-extern crate std_web as stdweb;
+#[cfg(target_os = "macos")]
+extern crate cgl;
+#[cfg(target_os = "macos")]
+extern crate cocoa;
+#[cfg(target_os = "macos")]
+extern crate core_foundation;
+#[cfg(target_os = "macos")]
+extern crate core_graphics;
+#[cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))]
+extern crate x11_dl;
+#[cfg(any(target_os = "linux", target_os = "freebsd", target_os = "dragonfly", target_os = "openbsd"))]
+#[macro_use(wayland_env,declare_handler)]
+extern crate wayland_client;
+
+use std::sync::Arc;
+
+pub use events::*;
+pub use window::{AvailableMonitorsIter, MonitorId, get_available_monitors, get_primary_monitor};
+pub use native_monitor::NativeMonitorId;
 
-pub mod dpi;
 #[macro_use]
-pub mod error;
-pub mod event;
-pub mod event_loop;
-mod icon;
-pub mod monitor;
-mod platform_impl;
-mod util;
-pub mod window;
+mod api_transition;
 
-pub mod platform;
+mod platform;
+mod events;
+mod window;
+
+pub mod os;
+
+/// Represents a window.
+///
+/// # Example
+///
+/// ```no_run
+/// use winit::Event;
+/// use winit::EventsLoop;
+/// use winit::Window;
+/// use winit::WindowEvent;
+///
+/// let events_loop = EventsLoop::new();
+/// let window = Window::new(&events_loop).unwrap();
+///
+/// events_loop.run_forever(|event| {
+///     match event {
+///         Event::WindowEvent { event: WindowEvent::Closed, .. } => {
+///             events_loop.interrupt();
+///         },
+///         _ => ()
+///     }
+/// });
+/// ```
+pub struct Window {
+    window: platform::Window2,
+}
+
+/// Identifier of a window. Unique for each window.
+///
+/// Can be obtained with `window.id()`.
+///
+/// Whenever you receive an event specific to a window, this event contains a `WindowId` which you
+/// can then compare to the ids of your windows.
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct WindowId(platform::WindowId);
+
+/// Provides a way to retreive events from the windows that were registered to it.
+// TODO: document usage in multiple threads
+pub struct EventsLoop {
+    events_loop: Arc<platform::EventsLoop>,
+}
+
+impl EventsLoop {
+    /// Builds a new events loop.
+    pub fn new() -> EventsLoop {
+        EventsLoop {
+            events_loop: Arc::new(platform::EventsLoop::new()),
+        }
+    }
+
+    /// Fetches all the events that are pending, calls the callback function for each of them,
+    /// and returns.
+    #[inline]
+    pub fn poll_events<F>(&self, callback: F)
+        where F: FnMut(Event)
+    {
+        self.events_loop.poll_events(callback)
+    }
+
+    /// Runs forever until `interrupt()` is called. Whenever an event happens, calls the callback.
+    #[inline]
+    pub fn run_forever<F>(&self, callback: F)
+        where F: FnMut(Event)
+    {
+        self.events_loop.run_forever(callback)
+    }
+
+    /// If we called `run_forever()`, stops the process of waiting for events.
+    // TODO: what if we're waiting from multiple threads?
+    #[inline]
+    pub fn interrupt(&self) {
+        self.events_loop.interrupt()
+    }
+}
+
+/// Object that allows you to build windows.
+#[derive(Clone)]
+pub struct WindowBuilder {
+    /// The attributes to use to create the window.
+    pub window: WindowAttributes,
+
+    // Platform-specific configuration. Private.
+    platform_specific: platform::PlatformSpecificWindowBuilderAttributes,
+}
+
+/// Error that can happen while creating a window or a headless renderer.
+#[derive(Debug)]
+pub enum CreationError {
+    OsError(String),
+    /// TODO: remove this error
+    NotSupported,
+}
+
+impl CreationError {
+    fn to_string(&self) -> &str {
+        match *self {
+            CreationError::OsError(ref text) => &text,
+            CreationError::NotSupported => "Some of the requested attributes are not supported",
+        }
+    }
+}
+
+impl std::fmt::Display for CreationError {
+    fn fmt(&self, formatter: &mut std::fmt::Formatter) -> Result<(), std::fmt::Error> {
+        formatter.write_str(self.to_string())
+    }
+}
+
+impl std::error::Error for CreationError {
+    fn description(&self) -> &str {
+        self.to_string()
+    }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq)]
+pub enum MouseCursor {
+    /// The platform-dependent default cursor.
+    Default,
+    /// A simple crosshair.
+    Crosshair,
+    /// A hand (often used to indicate links in web browsers).
+    Hand,
+    /// Self explanatory.
+    Arrow,
+    /// Indicates something is to be moved.
+    Move,
+    /// Indicates text that may be selected or edited.
+    Text,
+    /// Program busy indicator.
+    Wait,
+    /// Help indicator (often rendered as a "?")
+    Help,
+    /// Progress indicator. Shows that processing is being done. But in contrast
+    /// with "Wait" the user may still interact with the program. Often rendered
+    /// as a spinning beach ball, or an arrow with a watch or hourglass.
+    Progress,
+
+    /// Cursor showing that something cannot be done.
+    NotAllowed,
+    ContextMenu,
+    NoneCursor,
+    Cell,
+    VerticalText,
+    Alias,
+    Copy,
+    NoDrop,
+    Grab,
+    Grabbing,
+    AllScroll,
+    ZoomIn,
+    ZoomOut,
+
+    /// Indicate that some edge is to be moved. For example, the 'SeResize' cursor
+    /// is used when the movement starts from the south-east corner of the box.
+    EResize,
+    NResize,
+    NeResize,
+    NwResize,
+    SResize,
+    SeResize,
+    SwResize,
+    WResize,
+    EwResize,
+    NsResize,
+    NeswResize,
+    NwseResize,
+    ColResize,
+    RowResize,
+}
+
+/// Describes how glutin handles the cursor.
+#[derive(Debug, Copy, Clone, PartialEq)]
+pub enum CursorState {
+    /// Normal cursor behavior.
+    Normal,
+
+    /// The cursor will be invisible when over the window.
+    Hide,
+
+    /// Grabs the mouse cursor. The cursor's motion will be confined to this
+    /// window and the window has exclusive access to further events regarding
+    /// the cursor.
+    ///
+    /// This is useful for first-person cameras for example.
+    Grab,
+}
+
+/// Attributes to use when creating a window.
+#[derive(Clone)]
+pub struct WindowAttributes {
+    /// The dimensions of the window. If this is `None`, some platform-specific dimensions will be
+    /// used.
+    ///
+    /// The default is `None`.
+    pub dimensions: Option<(u32, u32)>,
+
+    /// The minimum dimensions a window can be, If this is `None`, the window will have no minimum dimensions (aside from reserved).
+    ///
+    /// The default is `None`.
+    pub min_dimensions: Option<(u32, u32)>,
+
+    /// The maximum dimensions a window can be, If this is `None`, the maximum will have no maximum or will be set to the primary monitor's dimensions by the platform.
+    ///
+    /// The default is `None`.
+    pub max_dimensions: Option<(u32, u32)>,
+
+    /// If `Some`, the window will be in fullscreen mode with the given monitor.
+    ///
+    /// The default is `None`.
+    pub monitor: Option<platform::MonitorId>,
+
+    /// The title of the window in the title bar.
+    ///
+    /// The default is `"glutin window"`.
+    pub title: String,
+
+    /// Whether the window should be immediately visible upon creation.
+    ///
+    /// The default is `true`.
+    pub visible: bool,
+
+    /// Whether the the window should be transparent. If this is true, writing colors
+    /// with alpha values different than `1.0` will produce a transparent window.
+    ///
+    /// The default is `false`.
+    pub transparent: bool,
+
+    /// Whether the window should have borders and bars.
+    ///
+    /// The default is `true`.
+    pub decorations: bool,
+
+    /// [iOS only] Enable multitouch, see [UIView#multipleTouchEnabled]
+    /// (https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIView_Class/#//apple_ref/occ/instp/UIView/multipleTouchEnabled)
+    pub multitouch: bool,
+}
+
+impl Default for WindowAttributes {
+    #[inline]
+    fn default() -> WindowAttributes {
+        WindowAttributes {
+            dimensions: None,
+            min_dimensions: None,
+            max_dimensions: None,
+            monitor: None,
+            title: "glutin window".to_owned(),
+            visible: true,
+            transparent: false,
+            decorations: true,
+            multitouch: false,
+        }
+    }
+}
+
+mod native_monitor {
+    /// Native platform identifier for a monitor. Different platforms use fundamentally different types
+    /// to represent a monitor ID.
+    #[derive(Clone, PartialEq, Eq)]
+    pub enum NativeMonitorId {
+        /// Cocoa and X11 use a numeric identifier to represent a monitor.
+        Numeric(u32),
+
+        /// Win32 uses a Unicode string to represent a monitor.
+        Name(String),
+
+        /// Other platforms (Android) don't support monitor identification.
+        Unavailable
+    }
+}

src/monitor.rs

@@ -1,174 +0,0 @@
-//! Types useful for interacting with a user's monitors.
-//!
-//! If you want to get basic information about a monitor, you can use the [`MonitorHandle`][monitor_handle]
-//! type. This is retreived from one of the following methods, which return an iterator of
-//! [`MonitorHandle`][monitor_handle]:
-//! - [`EventLoop::available_monitors`][loop_get]
-//! - [`Window::available_monitors`][window_get].
-//!
-//! [monitor_handle]: crate::monitor::MonitorHandle
-//! [loop_get]: crate::event_loop::EventLoop::available_monitors
-//! [window_get]: crate::window::Window::available_monitors
-use crate::{
-    dpi::{PhysicalPosition, PhysicalSize},
-    platform_impl,
-};
-
-/// Describes a fullscreen video mode of a monitor.
-///
-/// Can be acquired with:
-/// - [`MonitorHandle::video_modes`][monitor_get].
-///
-/// [monitor_get]: crate::monitor::MonitorHandle::video_modes
-#[derive(Clone, PartialEq, Eq, Hash)]
-pub struct VideoMode {
-    pub(crate) video_mode: platform_impl::VideoMode,
-}
-
-impl std::fmt::Debug for VideoMode {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        self.video_mode.fmt(f)
-    }
-}
-
-impl PartialOrd for VideoMode {
-    fn partial_cmp(&self, other: &VideoMode) -> Option<std::cmp::Ordering> {
-        Some(self.cmp(other))
-    }
-}
-
-impl Ord for VideoMode {
-    fn cmp(&self, other: &VideoMode) -> std::cmp::Ordering {
-        // TODO: we can impl `Ord` for `PhysicalSize` once we switch from `f32`
-        // to `u32` there
-        let size: (u32, u32) = self.size().into();
-        let other_size: (u32, u32) = other.size().into();
-        self.monitor().cmp(&other.monitor()).then(
-            size.cmp(&other_size)
-                .then(
-                    self.refresh_rate()
-                        .cmp(&other.refresh_rate())
-                        .then(self.bit_depth().cmp(&other.bit_depth())),
-                )
-                .reverse(),
-        )
-    }
-}
-
-impl VideoMode {
-    /// Returns the resolution of this video mode.
-    #[inline]
-    pub fn size(&self) -> PhysicalSize {
-        self.video_mode.size()
-    }
-
-    /// Returns the bit depth of this video mode, as in how many bits you have
-    /// available per color. This is generally 24 bits or 32 bits on modern
-    /// systems, depending on whether the alpha channel is counted or not.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **Wayland:** Always returns 32.
-    /// - **iOS:** Always returns 32.
-    #[inline]
-    pub fn bit_depth(&self) -> u16 {
-        self.video_mode.bit_depth()
-    }
-
-    /// Returns the refresh rate of this video mode. **Note**: the returned
-    /// refresh rate is an integer approximation, and you shouldn't rely on this
-    /// value to be exact.
-    #[inline]
-    pub fn refresh_rate(&self) -> u16 {
-        self.video_mode.refresh_rate()
-    }
-
-    /// Returns the monitor that this video mode is valid for. Each monitor has
-    /// a separate set of valid video modes.
-    #[inline]
-    pub fn monitor(&self) -> MonitorHandle {
-        self.video_mode.monitor()
-    }
-}
-
-impl std::fmt::Display for VideoMode {
-    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        write!(
-            f,
-            "{}x{} @ {} Hz ({} bpp)",
-            self.size().width,
-            self.size().height,
-            self.refresh_rate(),
-            self.bit_depth()
-        )
-    }
-}
-
-/// Handle to a monitor.
-///
-/// Allows you to retrieve information about a given monitor and can be used in [`Window`] creation.
-///
-/// [`Window`]: crate::window::Window
-#[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord)]
-pub struct MonitorHandle {
-    pub(crate) inner: platform_impl::MonitorHandle,
-}
-
-impl MonitorHandle {
-    /// Returns a human-readable name of the monitor.
-    ///
-    /// Returns `None` if the monitor doesn't exist anymore.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **Web:** Always returns None
-    #[inline]
-    pub fn name(&self) -> Option<String> {
-        self.inner.name()
-    }
-
-    /// Returns the monitor's resolution.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **Web:** Always returns (0,0)
-    #[inline]
-    pub fn size(&self) -> PhysicalSize {
-        self.inner.size()
-    }
-
-    /// Returns the top-left corner position of the monitor relative to the larger full
-    /// screen area.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **Web:** Always returns (0,0)
-    #[inline]
-    pub fn position(&self) -> PhysicalPosition {
-        self.inner.position()
-    }
-
-    /// Returns the DPI factor that can be used to map logical pixels to physical pixels, and vice versa.
-    ///
-    /// See the [`dpi`](crate::dpi) module for more information.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **X11:** Can be overridden using the `WINIT_HIDPI_FACTOR` environment variable.
-    /// - **Android:** Always returns 1.0.
-    /// - **Web:** Always returns 1.0
-    #[inline]
-    pub fn hidpi_factor(&self) -> f64 {
-        self.inner.hidpi_factor()
-    }
-
-    /// Returns all fullscreen video modes supported by this monitor.
-    ///
-    /// ## Platform-specific
-    ///
-    /// - **Web:** Always returns an empty iterator
-    #[inline]
-    pub fn video_modes(&self) -> impl Iterator<Item = VideoMode> {
-        self.inner.video_modes()
-    }
-}

src/os/android.rs

@@ -0,0 +1,25 @@
+#![cfg(any(target_os = "android"))]
+
+use std::os::raw::c_void;
+use Window;
+use WindowBuilder;
+
+/// Additional methods on `Window` that are specific to Android.
+pub trait WindowExt {
+    fn get_native_window(&self) -> *const c_void;
+}
+
+impl WindowExt for Window {
+    #[inline]
+    fn get_native_window(&self) -> *const c_void {
+        self.window.get_native_window()
+    }
+}
+
+/// Additional methods on `WindowBuilder` that are specific to Android.
+pub trait WindowBuilderExt {
+
+}
+
+impl WindowBuilderExt for WindowBuilder {
+}

src/os/macos.rs

@@ -0,0 +1,75 @@
+#![cfg(target_os = "macos")]
+
+use std::convert::From;
+use std::os::raw::c_void;
+use cocoa::appkit::NSApplicationActivationPolicy;
+use {Window, WindowBuilder};
+
+/// Additional methods on `Window` that are specific to MacOS.
+pub trait WindowExt {
+    /// Returns a pointer to the cocoa `NSWindow` that is used by this window.
+    ///
+    /// The pointer will become invalid when the `Window` is destroyed.
+    fn get_nswindow(&self) -> *mut c_void;
+
+    /// Returns a pointer to the cocoa `NSView` that is used by this window.
+    ///
+    /// The pointer will become invalid when the `Window` is destroyed.
+    fn get_nsview(&self) -> *mut c_void;
+}
+
+impl WindowExt for Window {
+    #[inline]
+    fn get_nswindow(&self) -> *mut c_void {
+        self.window.get_nswindow()
+    }
+
+    #[inline]
+    fn get_nsview(&self) -> *mut c_void {
+        self.window.get_nsview()
+    }
+}
+
+/// Corresponds to `NSApplicationActivationPolicy`.
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum ActivationPolicy {
+    /// Corresponds to `NSApplicationActivationPolicyRegular`.
+    Regular,
+    /// Corresponds to `NSApplicationActivationPolicyAccessory`.
+    Accessory,
+    /// Corresponds to `NSApplicationActivationPolicyProhibited`.
+    Prohibited,
+}
+
+impl Default for ActivationPolicy {
+    fn default() -> Self {
+        ActivationPolicy::Regular
+    }
+}
+
+impl From<ActivationPolicy> for NSApplicationActivationPolicy {
+    fn from(activation_policy: ActivationPolicy) -> Self {
+        match activation_policy {
+            ActivationPolicy::Regular =>
+                NSApplicationActivationPolicy::NSApplicationActivationPolicyRegular,
+            ActivationPolicy::Accessory =>
+                NSApplicationActivationPolicy::NSApplicationActivationPolicyAccessory,
+            ActivationPolicy::Prohibited =>
+                NSApplicationActivationPolicy::NSApplicationActivationPolicyProhibited,
+        }
+    }
+}
+
+/// Additional methods on `WindowBuilder` that are specific to MacOS.
+pub trait WindowBuilderExt {
+    fn with_activation_policy(self, activation_policy: ActivationPolicy) -> WindowBuilder;
+}
+
+impl WindowBuilderExt for WindowBuilder {
+    /// Sets the activation policy for the window being built
+    #[inline]
+    fn with_activation_policy(mut self, activation_policy: ActivationPolicy) -> WindowBuilder {
+        self.platform_specific.activation_policy = activation_policy;
+        self
+    }
+}

src/os/mod.rs

@@ -0,0 +1,15 @@
+//! Contains traits with platform-specific methods in them.
+//!
+//! Contains the follow modules:
+//!
+//!  - `android`
+//!  - `macos`
+//!  - `unix`
+//!  - `windows`
+//!
+//! However only the module corresponding to the platform you're compiling to will be available.
+//!
+pub mod android;
+pub mod macos;
+pub mod unix;
+pub mod windows;

src/os/unix.rs

@@ -0,0 +1,174 @@
+#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))]
+
+use std::sync::Arc;
+use std::ptr;
+use libc;
+use Window;
+use platform::Window2 as LinuxWindow;
+use platform::{UnixBackend, UNIX_BACKEND};
+use WindowBuilder;
+use platform::x11::XConnection;
+use platform::x11::ffi::XVisualInfo;
+
+use wayland_client::protocol::wl_display::WlDisplay;
+use wayland_client::protocol::wl_surface::WlSurface;
+
+pub use platform::x11;
+
+// TODO: do not expose XConnection
+pub fn get_x11_xconnection() -> Option<Arc<XConnection>> {
+    match *UNIX_BACKEND {
+        UnixBackend::X(ref connec) => Some(connec.clone()),
+        _ => None,
+    }
+}
+
+/// Additional methods on `Window` that are specific to Unix.
+pub trait WindowExt {
+    /// Returns a pointer to the `Window` object of xlib that is used by this window.
+    ///
+    /// Returns `None` if the window doesn't use xlib (if it uses wayland for example).
+    ///
+    /// The pointer will become invalid when the glutin `Window` is destroyed.
+    fn get_xlib_window(&self) -> Option<*mut libc::c_void>;
+
+    /// Returns a pointer to the `Display` object of xlib that is used by this window.
+    ///
+    /// Returns `None` if the window doesn't use xlib (if it uses wayland for example).
+    ///
+    /// The pointer will become invalid when the glutin `Window` is destroyed.
+    fn get_xlib_display(&self) -> Option<*mut libc::c_void>;
+
+    fn get_xlib_screen_id(&self) -> Option<*mut libc::c_void>;
+
+    fn get_xlib_xconnection(&self) -> Option<Arc<XConnection>>;
+    
+    /// This function returns the underlying `xcb_connection_t` of an xlib `Display`.
+    ///
+    /// Returns `None` if the window doesn't use xlib (if it uses wayland for example).
+    ///
+    /// The pointer will become invalid when the glutin `Window` is destroyed.
+    fn get_xcb_connection(&self) -> Option<*mut libc::c_void>;
+
+    /// Returns a pointer to the `wl_surface` object of wayland that is used by this window.
+    ///
+    /// Returns `None` if the window doesn't use wayland (if it uses xlib for example).
+    ///
+    /// The pointer will become invalid when the glutin `Window` is destroyed.
+    fn get_wayland_surface(&self) -> Option<*mut libc::c_void>;
+
+    /// Returns a pointer to the `wl_display` object of wayland that is used by this window.
+    ///
+    /// Returns `None` if the window doesn't use wayland (if it uses xlib for example).
+    ///
+    /// The pointer will become invalid when the glutin `Window` is destroyed.
+    fn get_wayland_display(&self) -> Option<*mut libc::c_void>;
+
+    /// Returns a reference to the `WlSurface` object of wayland that is used by this window.
+    ///
+    /// For use with the `wayland-client` crate.
+    ///
+    /// **This function is not part of winit's public API.**
+    ///
+    /// Returns `None` if the window doesn't use wayland (if it uses xlib for example).
+    fn get_wayland_client_surface(&self) -> Option<&WlSurface>;
+
+    /// Returns a pointer to the `WlDisplay` object of wayland that is used by this window.
+    ///
+    /// For use with the `wayland-client` crate.
+    ///
+    /// **This function is not part of winit's public API.**
+    ///
+    /// Returns `None` if the window doesn't use wayland (if it uses xlib for example).
+    fn get_wayland_client_display(&self) -> Option<&WlDisplay>;
+}
+
+impl WindowExt for Window {
+    #[inline]
+    fn get_xlib_window(&self) -> Option<*mut libc::c_void> {
+        match self.window {
+            LinuxWindow::X(ref w) => Some(w.get_xlib_window()),
+            _ => None
+        }
+    }
+
+    #[inline]
+    fn get_xlib_display(&self) -> Option<*mut libc::c_void> {
+        match self.window {
+            LinuxWindow::X(ref w) => Some(w.get_xlib_display()),
+            _ => None
+        }
+    }
+
+    fn get_xlib_screen_id(&self) -> Option<*mut libc::c_void> {
+        match self.window {
+            LinuxWindow::X(ref w) => Some(w.get_xlib_screen_id()),
+            _ => None
+        }
+    }
+
+    fn get_xlib_xconnection(&self) -> Option<Arc<XConnection>> {
+        match self.window {
+            LinuxWindow::X(ref w) => Some(w.get_xlib_xconnection()),
+            _ => None
+        }
+    }
+
+    fn get_xcb_connection(&self) -> Option<*mut libc::c_void> {
+        match self.window {
+            LinuxWindow::X(ref w) => Some(w.get_xcb_connection()),
+            _ => None
+        }
+    }
+
+    #[inline]
+    fn get_wayland_surface(&self) -> Option<*mut libc::c_void> {
+        use wayland_client::Proxy;
+        self.get_wayland_client_surface().map(|p| p.ptr() as *mut _)
+    }
+
+
+    #[inline]
+    fn get_wayland_display(&self) -> Option<*mut libc::c_void> {
+        use wayland_client::Proxy;
+        self.get_wayland_client_display().map(|p| p.ptr() as *mut _)
+    }
+
+    #[inline]
+    fn get_wayland_client_surface(&self) -> Option<&WlSurface> {
+        match self.window {
+            LinuxWindow::Wayland(ref w) => Some(w.get_surface()),
+            _ => None
+        }
+    }
+
+    #[inline]
+    fn get_wayland_client_display(&self) -> Option<&WlDisplay> {
+        match self.window {
+            LinuxWindow::Wayland(ref w) => Some(w.get_display()),
+            _ => None
+        }
+    }
+}
+
+/// Additional methods on `WindowBuilder` that are specific to Unix.
+pub trait WindowBuilderExt {
+    fn with_x11_visual<T>(self, visual_infos: *const T) -> WindowBuilder;
+    fn with_x11_screen(self, screen_id: i32) -> WindowBuilder;
+}
+
+impl WindowBuilderExt for WindowBuilder {
+    #[inline]
+    fn with_x11_visual<T>(mut self, visual_infos: *const T) -> WindowBuilder {
+        self.platform_specific.visual_infos = Some(
+            unsafe { ptr::read(visual_infos as *const XVisualInfo) }
+        );
+        self
+    }
+
+    #[inline]
+    fn with_x11_screen(mut self, screen_id: i32) -> WindowBuilder {
+        self.platform_specific.screen_id = Some(screen_id);
+        self
+    }
+}

src/os/windows.rs

@@ -0,0 +1,37 @@
+#![cfg(target_os = "windows")]
+
+use libc;
+use Window;
+use WindowBuilder;
+use winapi;
+
+/// Additional methods on `Window` that are specific to Windows.
+pub trait WindowExt {
+    /// Returns a pointer to the `Window` object of xlib that is used by this window.
+    ///
+    /// Returns `None` if the window doesn't use xlib (if it uses wayland for example).
+    ///
+    /// The pointer will become invalid when the glutin `Window` is destroyed.
+    fn get_hwnd(&self) -> *mut libc::c_void;
+}
+
+impl WindowExt for Window {
+    #[inline]
+    fn get_hwnd(&self) -> *mut libc::c_void {
+        self.window.platform_window()
+    }
+}
+
+/// Additional methods on `WindowBuilder` that are specific to Windows.
+pub trait WindowBuilderExt {
+    fn with_parent_window(self, parent: winapi::HWND) -> WindowBuilder;
+}
+
+impl WindowBuilderExt for WindowBuilder {
+    /// Sets a parent to the window to be created
+    #[inline]
+    fn with_parent_window(mut self, parent: winapi::HWND) -> WindowBuilder {
+        self.platform_specific.parent = Some(parent);
+        self
+    }
+}

src/platform/android.rs

@@ -1,33 +0,0 @@
-#![cfg(any(target_os = "android"))]
-
-use crate::{EventLoop, Window, WindowBuilder};
-use std::os::raw::c_void;
-
-/// Additional methods on `EventLoop` that are specific to Android.
-pub trait EventLoopExtAndroid {
-    /// Makes it possible for glutin to register a callback when a suspend event happens on Android
-    fn set_suspend_callback(&self, cb: Option<Box<dyn Fn(bool) -> ()>>);
-}
-
-impl EventLoopExtAndroid for EventLoop {
-    fn set_suspend_callback(&self, cb: Option<Box<dyn Fn(bool) -> ()>>) {
-        self.event_loop.set_suspend_callback(cb);
-    }
-}
-
-/// Additional methods on `Window` that are specific to Android.
-pub trait WindowExtAndroid {
-    fn native_window(&self) -> *const c_void;
-}
-
-impl WindowExtAndroid for Window {
-    #[inline]
-    fn native_window(&self) -> *const c_void {
-        self.window.native_window()
-    }
-}
-
-/// Additional methods on `WindowBuilder` that are specific to Android.
-pub trait WindowBuilderExtAndroid {}
-
-impl WindowBuilderExtAndroid for WindowBuilder {}

src/platform/android/ffi.rs

@@ -0,0 +1,108 @@
+#![allow(dead_code)]
+#![allow(non_snake_case)]
+#![allow(non_camel_case_types)]
+#![allow(non_upper_case_globals)]
+
+use libc;
+use std::os::raw;
+
+#[link(name = "android")]
+#[link(name = "EGL")]
+#[link(name = "GLESv2")]
+extern {}
+
+/**
+ * asset_manager.h
+ */
+pub type AAssetManager = raw::c_void;
+
+/**
+ * native_window.h
+ */
+pub type ANativeWindow = raw::c_void;
+
+extern {
+    pub fn ANativeWindow_getHeight(window: *const ANativeWindow) -> libc::int32_t;
+    pub fn ANativeWindow_getWidth(window: *const ANativeWindow) -> libc::int32_t;
+}
+
+/**
+ * native_activity.h
+ */
+pub type JavaVM = ();
+pub type JNIEnv = ();
+pub type jobject = *const libc::c_void;
+
+pub type AInputQueue = ();  // FIXME: wrong
+pub type ARect = ();  // FIXME: wrong
+
+#[repr(C)]
+pub struct ANativeActivity {
+    pub callbacks: *mut ANativeActivityCallbacks,
+    pub vm: *mut JavaVM,
+    pub env: *mut JNIEnv,
+    pub clazz: jobject,
+    pub internalDataPath: *const libc::c_char,
+    pub externalDataPath: *const libc::c_char,
+    pub sdkVersion: libc::int32_t,
+    pub instance: *mut libc::c_void,
+    pub assetManager: *mut AAssetManager,
+    pub obbPath: *const libc::c_char,
+}
+
+#[repr(C)]
+pub struct ANativeActivityCallbacks {
+    pub onStart: extern fn(*mut ANativeActivity),
+    pub onResume: extern fn(*mut ANativeActivity),
+    pub onSaveInstanceState: extern fn(*mut ANativeActivity, *mut libc::size_t),
+    pub onPause: extern fn(*mut ANativeActivity),
+    pub onStop: extern fn(*mut ANativeActivity),
+    pub onDestroy: extern fn(*mut ANativeActivity),
+    pub onWindowFocusChanged: extern fn(*mut ANativeActivity, libc::c_int),
+    pub onNativeWindowCreated: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onNativeWindowResized: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onNativeWindowRedrawNeeded: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onNativeWindowDestroyed: extern fn(*mut ANativeActivity, *const ANativeWindow),
+    pub onInputQueueCreated: extern fn(*mut ANativeActivity, *mut AInputQueue),
+    pub onInputQueueDestroyed: extern fn(*mut ANativeActivity, *mut AInputQueue),
+    pub onContentRectChanged: extern fn(*mut ANativeActivity, *const ARect),
+    pub onConfigurationChanged: extern fn(*mut ANativeActivity),
+    pub onLowMemory: extern fn(*mut ANativeActivity),
+}
+
+/**
+ * looper.h
+ */
+pub type ALooper = ();
+
+#[link(name = "android")]
+extern {
+    pub fn ALooper_forThread() -> *const ALooper;
+    pub fn ALooper_acquire(looper: *const ALooper);
+    pub fn ALooper_release(looper: *const ALooper);
+    pub fn ALooper_prepare(opts: libc::c_int) -> *const ALooper;
+    pub fn ALooper_pollOnce(timeoutMillis: libc::c_int, outFd: *mut libc::c_int,
+        outEvents: *mut libc::c_int, outData: *mut *mut libc::c_void) -> libc::c_int;
+    pub fn ALooper_pollAll(timeoutMillis: libc::c_int, outFd: *mut libc::c_int,
+        outEvents: *mut libc::c_int, outData: *mut *mut libc::c_void) -> libc::c_int;
+    pub fn ALooper_wake(looper: *const ALooper);
+    pub fn ALooper_addFd(looper: *const ALooper, fd: libc::c_int, ident: libc::c_int,
+        events: libc::c_int, callback: ALooper_callbackFunc, data: *mut libc::c_void)
+        -> libc::c_int;
+    pub fn ALooper_removeFd(looper: *const ALooper, fd: libc::c_int) -> libc::c_int;
+}
+
+pub const ALOOPER_PREPARE_ALLOW_NON_CALLBACKS: libc::c_int = 1 << 0;
+
+pub const ALOOPER_POLL_WAKE: libc::c_int = -1;
+pub const ALOOPER_POLL_CALLBACK: libc::c_int = -2;
+pub const ALOOPER_POLL_TIMEOUT: libc::c_int = -3;
+pub const ALOOPER_POLL_ERROR: libc::c_int = -4;
+
+pub const ALOOPER_EVENT_INPUT: libc::c_int = 1 << 0;
+pub const ALOOPER_EVENT_OUTPUT: libc::c_int = 1 << 1;
+pub const ALOOPER_EVENT_ERROR: libc::c_int = 1 << 2;
+pub const ALOOPER_EVENT_HANGUP: libc::c_int = 1 << 3;
+pub const ALOOPER_EVENT_INVALID: libc::c_int = 1 << 4;
+
+pub type ALooper_callbackFunc = extern fn(libc::c_int, libc::c_int, *mut libc::c_void) -> libc::c_int;

src/platform/android/mod.rs

@@ -0,0 +1,275 @@
+#![cfg(target_os = "android")]
+
+extern crate android_glue;
+
+use libc;
+use std::ffi::{CString};
+use std::sync::mpsc::{Receiver, channel};
+use std::os::raw::c_void;
+use {CreationError, WindowEvent as Event, MouseCursor};
+use CreationError::OsError;
+use events::ElementState::{Pressed, Released};
+use events::{Touch, TouchPhase};
+
+use std::collections::VecDeque;
+
+use CursorState;
+use WindowAttributes;
+use native_monitor::NativeMonitorId;
+
+gen_api_transition!();
+
+pub struct Window {
+    native_window: *const c_void,
+    event_rx: Receiver<android_glue::Event>,
+}
+
+#[derive(Clone)]
+pub struct MonitorId;
+
+mod ffi;
+
+#[inline]
+pub fn get_available_monitors() -> VecDeque<MonitorId> {
+    let mut rb = VecDeque::new();
+    rb.push_back(MonitorId);
+    rb
+}
+
+#[inline]
+pub fn get_primary_monitor() -> MonitorId {
+    MonitorId
+}
+
+impl MonitorId {
+    #[inline]
+    pub fn get_name(&self) -> Option<String> {
+        Some("Primary".to_string())
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> NativeMonitorId {
+        NativeMonitorId::Unavailable
+    }
+
+    #[inline]
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        unimplemented!()
+    }
+}
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificWindowBuilderAttributes;
+#[derive(Clone, Default)]
+pub struct PlatformSpecificHeadlessBuilderAttributes;
+
+pub struct PollEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for PollEventsIterator<'a> {
+    type Item = Event;
+
+    fn next(&mut self) -> Option<Event> {
+        match self.window.event_rx.try_recv() {
+            Ok(android_glue::Event::EventMotion(motion)) => {
+                Some(Event::Touch(Touch {
+                    phase: match motion.action {
+                        android_glue::MotionAction::Down => TouchPhase::Started,
+                        android_glue::MotionAction::Move => TouchPhase::Moved,
+                        android_glue::MotionAction::Up => TouchPhase::Ended,
+                        android_glue::MotionAction::Cancel => TouchPhase::Cancelled,
+                    },
+                    location: (motion.x as f64, motion.y as f64),
+                    id: motion.pointer_id as u64,
+                }))
+            },
+            Ok(android_glue::Event::InitWindow) => {
+                // The activity went to foreground.
+                Some(Event::Suspended(false))
+            },
+            Ok(android_glue::Event::TermWindow) => {
+                // The activity went to background.
+                Some(Event::Suspended(true))
+            },
+            Ok(android_glue::Event::WindowResized) |
+            Ok(android_glue::Event::ConfigChanged) => {
+                // Activity Orientation changed or resized.
+                self.window.get_inner_size().map(|s| Event::Resized(s.0, s.1))
+            },
+            Ok(android_glue::Event::WindowRedrawNeeded) => {
+                // The activity needs to be redrawn.
+                Some(Event::Refresh)
+            }
+            _ => {
+                None
+            }
+        }
+    }
+}
+
+pub struct WaitEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for WaitEventsIterator<'a> {
+    type Item = Event;
+
+    #[inline]
+    fn next(&mut self) -> Option<Event> {
+        loop {
+            // calling poll_events()
+            if let Some(ev) = self.window.poll_events().next() {
+                return Some(ev);
+            }
+
+            // TODO: Implement a proper way of sleeping on the event queue
+            // timer::sleep(Duration::milliseconds(16));
+        }
+    }
+}
+
+impl Window {
+    pub fn new(win_attribs: &WindowAttributes, _: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window, CreationError>
+    {
+        use std::{mem, ptr};
+
+        // not implemented
+        assert!(win_attribs.min_dimensions.is_none());
+        assert!(win_attribs.max_dimensions.is_none());
+
+        let native_window = unsafe { android_glue::get_native_window() };
+        if native_window.is_null() {
+            return Err(OsError(format!("Android's native window is null")));
+        }
+
+        let (tx, rx) = channel();
+        android_glue::add_sender(tx);
+        android_glue::set_multitouch(win_attribs.multitouch);
+
+        Ok(Window {
+            native_window: native_window as *const _,
+            event_rx: rx,
+        })
+    }
+
+    #[inline]
+    pub fn get_native_window(&self) -> *const c_void {
+        self.native_window
+    }
+
+    #[inline]
+    pub fn is_closed(&self) -> bool {
+        false
+    }
+
+    #[inline]
+    pub fn set_title(&self, _: &str) {
+    }
+
+    #[inline]
+    pub fn show(&self) {
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+    }
+
+    #[inline]
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        None
+    }
+
+    #[inline]
+    pub fn set_position(&self, _x: i32, _y: i32) {
+    }
+
+    #[inline]
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        let native_window = unsafe { android_glue::get_native_window() };
+
+        if native_window.is_null() {
+            None
+        } else {
+            Some((
+                unsafe { ffi::ANativeWindow_getWidth(native_window as *const _) } as u32,
+                unsafe { ffi::ANativeWindow_getHeight(native_window as *const _) } as u32
+            ))
+        }
+    }
+
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        self.get_inner_size()
+    }
+
+    #[inline]
+    pub fn set_inner_size(&self, _x: u32, _y: u32) {
+    }
+
+    #[inline]
+    pub fn create_window_proxy(&self) -> WindowProxy {
+        WindowProxy
+    }
+
+    #[inline]
+    pub fn poll_events(&self) -> PollEventsIterator {
+        PollEventsIterator {
+            window: self
+        }
+    }
+
+    #[inline]
+    pub fn wait_events(&self) -> WaitEventsIterator {
+        WaitEventsIterator {
+            window: self
+        }
+    }
+
+    #[inline]
+    pub fn platform_display(&self) -> *mut libc::c_void {
+        unimplemented!();
+    }
+
+    #[inline]
+    pub fn platform_window(&self) -> *mut libc::c_void {
+        unimplemented!()
+    }
+
+    #[inline]
+    pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
+    }
+
+    #[inline]
+    pub fn set_cursor(&self, _: MouseCursor) {
+    }
+
+    #[inline]
+    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+        Ok(())
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+        1.0
+    }
+
+    #[inline]
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        unimplemented!();
+    }
+}
+
+unsafe impl Send for Window {}
+unsafe impl Sync for Window {}
+
+#[derive(Clone)]
+pub struct WindowProxy;
+
+impl WindowProxy {
+    #[inline]
+    pub fn wakeup_event_loop(&self) {
+        android_glue::wake_event_loop();
+    }
+}

src/platform/desktop.rs

@@ -1,45 +0,0 @@
-#![cfg(any(
-    target_os = "windows",
-    target_os = "macos",
-    target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd", target_os = "openbsd"
-))]
-
-use crate::{
-    event::Event,
-    event_loop::{ControlFlow, EventLoop, EventLoopWindowTarget},
-};
-
-/// Additional methods on `EventLoop` that are specific to desktop platforms.
-pub trait EventLoopExtDesktop {
-    /// A type provided by the user that can be passed through `Event::UserEvent`.
-    type UserEvent;
-
-    /// Initializes the `winit` event loop.
-    ///
-    /// Unlike `run`, this function accepts non-`'static` (i.e. non-`move`) closures and returns
-    /// control flow to the caller when `control_flow` is set to `ControlFlow::Exit`.
-    ///
-    /// # Caveats
-    /// Despite its apperance at first glance, this is *not* a perfect replacement for
-    /// `poll_events`. For example, this function will not return on Windows or macOS while a
-    /// window is getting resized, resulting in all application logic outside of the
-    /// `event_handler` closure not running until the resize operation ends. Other OS operations
-    /// may also result in such freezes. This behavior is caused by fundamental limitations in the
-    /// underyling OS APIs, which cannot be hidden by Winit without severe stability reprecussions.
-    ///
-    /// You are strongly encouraged to use `run`, unless the use of this is absolutely necessary.
-    fn run_return<F>(&mut self, event_handler: F)
-    where
-        F: FnMut(Event<Self::UserEvent>, &EventLoopWindowTarget<Self::UserEvent>, &mut ControlFlow);
-}
-
-impl<T> EventLoopExtDesktop for EventLoop<T> {
-    type UserEvent = T;
-
-    fn run_return<F>(&mut self, event_handler: F)
-    where
-        F: FnMut(Event<T>, &EventLoopWindowTarget<T>, &mut ControlFlow),
-    {
-        self.event_loop.run_return(event_handler)
-    }
-}

src/platform/ios.rs

@@ -1,317 +0,0 @@
-#![cfg(target_os = "ios")]
-
-use std::os::raw::c_void;
-
-use crate::{
-    event_loop::EventLoop,
-    monitor::{MonitorHandle, VideoMode},
-    window::{Window, WindowBuilder},
-};
-
-/// Additional methods on [`EventLoop`] that are specific to iOS.
-pub trait EventLoopExtIOS {
-    /// Returns the [`Idiom`] (phone/tablet/tv/etc) for the current device.
-    fn idiom(&self) -> Idiom;
-}
-
-impl<T: 'static> EventLoopExtIOS for EventLoop<T> {
-    fn idiom(&self) -> Idiom {
-        self.event_loop.idiom()
-    }
-}
-
-/// Additional methods on [`Window`] that are specific to iOS.
-pub trait WindowExtIOS {
-    /// Returns a pointer to the [`UIWindow`] that is used by this window.
-    ///
-    /// The pointer will become invalid when the [`Window`] is destroyed.
-    ///
-    /// [`UIWindow`]: https://developer.apple.com/documentation/uikit/uiwindow?language=objc
-    fn ui_window(&self) -> *mut c_void;
-
-    /// Returns a pointer to the [`UIViewController`] that is used by this window.
-    ///
-    /// The pointer will become invalid when the [`Window`] is destroyed.
-    ///
-    /// [`UIViewController`]: https://developer.apple.com/documentation/uikit/uiviewcontroller?language=objc
-    fn ui_view_controller(&self) -> *mut c_void;
-
-    /// Returns a pointer to the [`UIView`] that is used by this window.
-    ///
-    /// The pointer will become invalid when the [`Window`] is destroyed.
-    ///
-    /// [`UIView`]: https://developer.apple.com/documentation/uikit/uiview?language=objc
-    fn ui_view(&self) -> *mut c_void;
-
-    /// Sets the [`contentScaleFactor`] of the underlying [`UIWindow`] to `hidpi_factor`.
-    ///
-    /// The default value is device dependent, and it's recommended GLES or Metal applications set
-    /// this to [`MonitorHandle::hidpi_factor()`].
-    ///
-    /// [`UIWindow`]: https://developer.apple.com/documentation/uikit/uiwindow?language=objc
-    /// [`contentScaleFactor`]: https://developer.apple.com/documentation/uikit/uiview/1622657-contentscalefactor?language=objc
-    fn set_hidpi_factor(&self, hidpi_factor: f64);
-
-    /// Sets the valid orientations for the [`Window`].
-    ///
-    /// The default value is [`ValidOrientations::LandscapeAndPortrait`].
-    ///
-    /// This changes the value returned by
-    /// [`-[UIViewController supportedInterfaceOrientations]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/1621435-supportedinterfaceorientations?language=objc),
-    /// and then calls
-    /// [`-[UIViewController attemptRotationToDeviceOrientation]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/1621400-attemptrotationtodeviceorientati?language=objc).
-    fn set_valid_orientations(&self, valid_orientations: ValidOrientations);
-
-    /// Sets whether the [`Window`] prefers the home indicator hidden.
-    ///
-    /// The default is to prefer showing the home indicator.
-    ///
-    /// This changes the value returned by
-    /// [`-[UIViewController prefersHomeIndicatorAutoHidden]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/2887510-prefershomeindicatorautohidden?language=objc),
-    /// and then calls
-    /// [`-[UIViewController setNeedsUpdateOfHomeIndicatorAutoHidden]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/2887509-setneedsupdateofhomeindicatoraut?language=objc).
-    ///
-    /// This only has an effect on iOS 11.0+.
-    fn set_prefers_home_indicator_hidden(&self, hidden: bool);
-
-    /// Sets the screen edges for which the system gestures will take a lower priority than the
-    /// application's touch handling.
-    ///
-    /// This changes the value returned by
-    /// [`-[UIViewController preferredScreenEdgesDeferringSystemGestures]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/2887512-preferredscreenedgesdeferringsys?language=objc),
-    /// and then calls
-    /// [`-[UIViewController setNeedsUpdateOfScreenEdgesDeferringSystemGestures]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/2887507-setneedsupdateofscreenedgesdefer?language=objc).
-    ///
-    /// This only has an effect on iOS 11.0+.
-    fn set_preferred_screen_edges_deferring_system_gestures(&self, edges: ScreenEdge);
-
-    /// Sets whether the [`Window`] prefers the status bar hidden.
-    ///
-    /// The default is to prefer showing the status bar.
-    ///
-    /// This changes the value returned by
-    /// [`-[UIViewController prefersStatusBarHidden]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/1621440-prefersstatusbarhidden?language=objc),
-    /// and then calls
-    /// [`-[UIViewController setNeedsStatusBarAppearanceUpdate]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/1621354-setneedsstatusbarappearanceupdat?language=objc).
-    fn set_prefers_status_bar_hidden(&self, hidden: bool);
-}
-
-impl WindowExtIOS for Window {
-    #[inline]
-    fn ui_window(&self) -> *mut c_void {
-        self.window.ui_window() as _
-    }
-
-    #[inline]
-    fn ui_view_controller(&self) -> *mut c_void {
-        self.window.ui_view_controller() as _
-    }
-
-    #[inline]
-    fn ui_view(&self) -> *mut c_void {
-        self.window.ui_view() as _
-    }
-
-    #[inline]
-    fn set_hidpi_factor(&self, hidpi_factor: f64) {
-        self.window.set_hidpi_factor(hidpi_factor)
-    }
-
-    #[inline]
-    fn set_valid_orientations(&self, valid_orientations: ValidOrientations) {
-        self.window.set_valid_orientations(valid_orientations)
-    }
-
-    #[inline]
-    fn set_prefers_home_indicator_hidden(&self, hidden: bool) {
-        self.window.set_prefers_home_indicator_hidden(hidden)
-    }
-
-    #[inline]
-    fn set_preferred_screen_edges_deferring_system_gestures(&self, edges: ScreenEdge) {
-        self.window
-            .set_preferred_screen_edges_deferring_system_gestures(edges)
-    }
-
-    #[inline]
-    fn set_prefers_status_bar_hidden(&self, hidden: bool) {
-        self.window.set_prefers_status_bar_hidden(hidden)
-    }
-}
-
-/// Additional methods on [`WindowBuilder`] that are specific to iOS.
-pub trait WindowBuilderExtIOS {
-    /// Sets the root view class used by the [`Window`], otherwise a barebones [`UIView`] is provided.
-    ///
-    /// An instance of the class will be initialized by calling [`-[UIView initWithFrame:]`](https://developer.apple.com/documentation/uikit/uiview/1622488-initwithframe?language=objc).
-    ///
-    /// [`UIView`]: https://developer.apple.com/documentation/uikit/uiview?language=objc
-    fn with_root_view_class(self, root_view_class: *const c_void) -> WindowBuilder;
-
-    /// Sets the [`contentScaleFactor`] of the underlying [`UIWindow`] to `hidpi_factor`.
-    ///
-    /// The default value is device dependent, and it's recommended GLES or Metal applications set
-    /// this to [`MonitorHandle::hidpi_factor()`].
-    ///
-    /// [`UIWindow`]: https://developer.apple.com/documentation/uikit/uiwindow?language=objc
-    /// [`contentScaleFactor`]: https://developer.apple.com/documentation/uikit/uiview/1622657-contentscalefactor?language=objc
-    fn with_hidpi_factor(self, hidpi_factor: f64) -> WindowBuilder;
-
-    /// Sets the valid orientations for the [`Window`].
-    ///
-    /// The default value is [`ValidOrientations::LandscapeAndPortrait`].
-    ///
-    /// This sets the initial value returned by
-    /// [`-[UIViewController supportedInterfaceOrientations]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/1621435-supportedinterfaceorientations?language=objc).
-    fn with_valid_orientations(self, valid_orientations: ValidOrientations) -> WindowBuilder;
-
-    /// Sets whether the [`Window`] prefers the home indicator hidden.
-    ///
-    /// The default is to prefer showing the home indicator.
-    ///
-    /// This sets the initial value returned by
-    /// [`-[UIViewController prefersHomeIndicatorAutoHidden]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/2887510-prefershomeindicatorautohidden?language=objc).
-    ///
-    /// This only has an effect on iOS 11.0+.
-    fn with_prefers_home_indicator_hidden(self, hidden: bool) -> WindowBuilder;
-
-    /// Sets the screen edges for which the system gestures will take a lower priority than the
-    /// application's touch handling.
-    ///
-    /// This sets the initial value returned by
-    /// [`-[UIViewController preferredScreenEdgesDeferringSystemGestures]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/2887512-preferredscreenedgesdeferringsys?language=objc).
-    ///
-    /// This only has an effect on iOS 11.0+.
-    fn with_preferred_screen_edges_deferring_system_gestures(
-        self,
-        edges: ScreenEdge,
-    ) -> WindowBuilder;
-
-    /// Sets whether the [`Window`] prefers the status bar hidden.
-    ///
-    /// The default is to prefer showing the status bar.
-    ///
-    /// This sets the initial value returned by
-    /// [`-[UIViewController prefersStatusBarHidden]`](https://developer.apple.com/documentation/uikit/uiviewcontroller/1621440-prefersstatusbarhidden?language=objc).
-    fn with_prefers_status_bar_hidden(self, hidden: bool) -> WindowBuilder;
-}
-
-impl WindowBuilderExtIOS for WindowBuilder {
-    #[inline]
-    fn with_root_view_class(mut self, root_view_class: *const c_void) -> WindowBuilder {
-        self.platform_specific.root_view_class = unsafe { &*(root_view_class as *const _) };
-        self
-    }
-
-    #[inline]
-    fn with_hidpi_factor(mut self, hidpi_factor: f64) -> WindowBuilder {
-        self.platform_specific.hidpi_factor = Some(hidpi_factor);
-        self
-    }
-
-    #[inline]
-    fn with_valid_orientations(mut self, valid_orientations: ValidOrientations) -> WindowBuilder {
-        self.platform_specific.valid_orientations = valid_orientations;
-        self
-    }
-
-    #[inline]
-    fn with_prefers_home_indicator_hidden(mut self, hidden: bool) -> WindowBuilder {
-        self.platform_specific.prefers_home_indicator_hidden = hidden;
-        self
-    }
-
-    #[inline]
-    fn with_preferred_screen_edges_deferring_system_gestures(
-        mut self,
-        edges: ScreenEdge,
-    ) -> WindowBuilder {
-        self.platform_specific
-            .preferred_screen_edges_deferring_system_gestures = edges;
-        self
-    }
-
-    #[inline]
-    fn with_prefers_status_bar_hidden(mut self, hidden: bool) -> WindowBuilder {
-        self.platform_specific.prefers_status_bar_hidden = hidden;
-        self
-    }
-}
-
-/// Additional methods on [`MonitorHandle`] that are specific to iOS.
-pub trait MonitorHandleExtIOS {
-    /// Returns a pointer to the [`UIScreen`] that is used by this monitor.
-    ///
-    /// [`UIScreen`]: https://developer.apple.com/documentation/uikit/uiscreen?language=objc
-    fn ui_screen(&self) -> *mut c_void;
-
-    /// Returns the preferred [`VideoMode`] for this monitor.
-    ///
-    /// This translates to a call to [`-[UIScreen preferredMode]`](https://developer.apple.com/documentation/uikit/uiscreen/1617823-preferredmode?language=objc).
-    fn preferred_video_mode(&self) -> VideoMode;
-}
-
-impl MonitorHandleExtIOS for MonitorHandle {
-    #[inline]
-    fn ui_screen(&self) -> *mut c_void {
-        self.inner.ui_screen() as _
-    }
-
-    #[inline]
-    fn preferred_video_mode(&self) -> VideoMode {
-        self.inner.preferred_video_mode()
-    }
-}
-
-/// Valid orientations for a particular [`Window`].
-#[derive(Clone, Copy, Debug)]
-pub enum ValidOrientations {
-    /// Excludes `PortraitUpsideDown` on iphone
-    LandscapeAndPortrait,
-
-    Landscape,
-
-    /// Excludes `PortraitUpsideDown` on iphone
-    Portrait,
-}
-
-impl Default for ValidOrientations {
-    #[inline]
-    fn default() -> ValidOrientations {
-        ValidOrientations::LandscapeAndPortrait
-    }
-}
-
-/// The device [idiom].
-///
-/// [idiom]: https://developer.apple.com/documentation/uikit/uidevice/1620037-userinterfaceidiom?language=objc
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub enum Idiom {
-    Unspecified,
-
-    /// iPhone and iPod touch.
-    Phone,
-
-    /// iPad.
-    Pad,
-
-    /// tvOS and Apple TV.
-    TV,
-    CarPlay,
-}
-
-bitflags! {
-    /// The [edges] of a screen.
-    ///
-    /// [edges]: https://developer.apple.com/documentation/uikit/uirectedge?language=objc
-    #[derive(Default)]
-    pub struct ScreenEdge: u8 {
-        const NONE   = 0;
-        const TOP    = 1 << 0;
-        const LEFT   = 1 << 1;
-        const BOTTOM = 1 << 2;
-        const RIGHT  = 1 << 3;
-        const ALL = ScreenEdge::TOP.bits | ScreenEdge::LEFT.bits
-            | ScreenEdge::BOTTOM.bits | ScreenEdge::RIGHT.bits;
-    }
-}

src/platform/ios/ffi.rs

@@ -0,0 +1,107 @@
+use std::ffi::CString;
+
+use libc;
+use objc::runtime::{ Object, Class };
+
+#[allow(non_camel_case_types)]
+pub type id = *mut Object;
+
+#[allow(non_camel_case_types)]
+#[allow(non_upper_case_globals)]
+pub const nil: id = 0 as id;
+
+pub type CFStringRef = *const libc::c_void;
+pub type CFTimeInterval = f64;
+pub type Boolean = u32;
+
+#[allow(non_upper_case_globals)]
+pub const kCFRunLoopRunHandledSource: i32 = 4;
+
+#[cfg(target_pointer_width = "32")]
+pub type CGFloat = f32;
+#[cfg(target_pointer_width = "64")]
+pub type CGFloat = f64;
+
+#[cfg(target_pointer_width = "32")]
+pub type NSUInteger = u32;
+#[cfg(target_pointer_width = "64")]
+pub type NSUInteger = u64;
+
+#[repr(C)]
+#[derive(Debug, Clone)]
+pub struct CGPoint {
+    pub x: CGFloat,
+    pub y: CGFloat,
+}
+
+#[repr(C)]
+#[derive(Debug, Clone)]
+pub struct CGRect {
+    pub origin: CGPoint,
+    pub size: CGSize
+}
+
+#[repr(C)]
+#[derive(Debug, Clone)]
+pub struct CGSize {
+    pub width: CGFloat,
+    pub height: CGFloat
+}
+
+#[link(name = "UIKit", kind = "framework")]
+#[link(name = "CoreFoundation", kind = "framework")]
+#[link(name = "GlKit", kind = "framework")]
+extern {
+    pub static kCFRunLoopDefaultMode: CFStringRef;
+
+    // int UIApplicationMain ( int argc, char *argv[], NSString *principalClassName, NSString *delegateClassName );
+    pub fn UIApplicationMain(argc: libc::c_int, argv: *const libc::c_char, principalClassName: id, delegateClassName: id) -> libc::c_int;
+
+    // SInt32 CFRunLoopRunInMode ( CFStringRef mode, CFTimeInterval seconds, Boolean returnAfterSourceHandled );
+    pub fn CFRunLoopRunInMode(mode: CFStringRef, seconds: CFTimeInterval, returnAfterSourceHandled: Boolean) -> i32;
+}
+
+extern {
+    pub fn setjmp(env: *mut libc::c_void) -> libc::c_int;
+    pub fn longjmp(env: *mut libc::c_void, val: libc::c_int);
+}
+
+pub trait NSString {
+    unsafe fn alloc(_: Self) -> id {
+        msg_send![class("NSString"), alloc]
+    }
+
+    #[allow(non_snake_case)]
+    unsafe fn initWithUTF8String_(self, c_string: *const i8) -> id;
+    #[allow(non_snake_case)]
+    unsafe fn stringByAppendingString_(self, other: id) -> id;
+    unsafe fn init_str(self, string: &str) -> Self;
+    #[allow(non_snake_case)]
+    unsafe fn UTF8String(self) -> *const libc::c_char;
+}
+
+impl NSString for id {
+    unsafe fn initWithUTF8String_(self, c_string: *const i8) -> id {
+        msg_send![self, initWithUTF8String:c_string as id]
+    }
+
+    unsafe fn stringByAppendingString_(self, other: id) -> id {
+        msg_send![self, stringByAppendingString:other]
+    }
+
+    unsafe fn init_str(self, string: &str) -> id {
+        let cstring = CString::new(string).unwrap();
+        self.initWithUTF8String_(cstring.as_ptr())
+    }
+
+    unsafe fn UTF8String(self) -> *const libc::c_char {
+        msg_send![self, UTF8String]
+    }
+}
+
+#[inline]
+pub fn class(name: &str) -> *mut Class {
+    unsafe {
+        ::std::mem::transmute(Class::get(name))
+    }
+}

src/platform/ios/mod.rs

@@ -0,0 +1,497 @@
+//! iOS support
+//!
+//! # Building app
+//! To build ios app you will need rustc built for this targets:
+//!
+//!  - armv7-apple-ios
+//!  - armv7s-apple-ios
+//!  - i386-apple-ios
+//!  - aarch64-apple-ios
+//!  - x86_64-apple-ios
+//!
+//! Then
+//!
+//! ```
+//! cargo build --target=...
+//! ```
+//! The simplest way to integrate your app into xcode environment is to build it
+//! as a static library. Wrap your main function and export it.
+//!
+//! ```rust, ignore
+//! #[no_mangle]
+//! pub extern fn start_glutin_app() {
+//!     start_inner()
+//! }
+//!
+//! fn start_inner() {
+//!    ...
+//! }
+//!
+//! ```
+//!
+//! Compile project and then drag resulting .a into Xcode project. Add glutin.h to xcode.
+//!
+//! ```ignore
+//! void start_glutin_app();
+//! ```
+//!
+//! Use start_glutin_app inside your xcode's main function.
+//!
+//!
+//! # App lifecycle and events
+//!
+//! iOS environment is very different from other platforms and you must be very
+//! careful with it's events. Familiarize yourself with
+//! [app lifecycle](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIApplicationDelegate_Protocol/).
+//!
+//!
+//! This is how those event are represented in glutin:
+//!
+//!  - applicationDidBecomeActive is Focused(true)
+//!  - applicationWillResignActive is Focused(false)
+//!  - applicationDidEnterBackground is Suspended(true)
+//!  - applicationWillEnterForeground is Suspended(false)
+//!  - applicationWillTerminate is Closed
+//!
+//! Keep in mind that after Closed event is received every attempt to draw with
+//! opengl will result in segfault.
+//!
+//! Also note that app will not receive Closed event if suspended, it will be SIGKILL'ed
+
+#![cfg(target_os = "ios")]
+
+use std::collections::VecDeque;
+use std::ptr;
+use std::mem;
+use std::os::raw::c_void;
+
+use libc;
+use libc::c_int;
+use objc::runtime::{Class, Object, Sel, BOOL, YES };
+use objc::declare::{ ClassDecl };
+
+use native_monitor::NativeMonitorId;
+use { CreationError, CursorState, MouseCursor, WindowAttributes };
+use WindowEvent as Event;
+use events::{ Touch, TouchPhase };
+
+mod ffi;
+use self::ffi::{
+    setjmp,
+    UIApplicationMain,
+    CFTimeInterval,
+    CFRunLoopRunInMode,
+    kCFRunLoopDefaultMode,
+    kCFRunLoopRunHandledSource,
+    id,
+    nil,
+    NSString,
+    CGFloat,
+    longjmp,
+    CGRect,
+    CGPoint
+ };
+
+static mut jmpbuf: [c_int;27] = [0;27];
+
+#[derive(Clone)]
+pub struct MonitorId;
+
+pub struct Window {
+    delegate_state: *mut DelegateState
+}
+
+#[derive(Clone)]
+pub struct WindowProxy;
+
+pub struct PollEventsIterator<'a> {
+    window: &'a Window,
+}
+
+pub struct WaitEventsIterator<'a> {
+    window: &'a Window,
+}
+
+#[derive(Debug)]
+struct DelegateState {
+    events_queue: VecDeque<Event>,
+    window: id,
+    controller: id,
+    size: (u32,u32),
+    scale: f32
+}
+
+
+impl DelegateState {
+    #[inline]
+    fn new(window: id, controller:id, size: (u32,u32), scale: f32) -> DelegateState {
+        DelegateState {
+            events_queue: VecDeque::new(),
+            window: window,
+            controller: controller,
+            size: size,
+            scale: scale
+        }
+    }
+}
+
+#[inline]
+pub fn get_available_monitors() -> VecDeque<MonitorId> {
+    let mut rb = VecDeque::new();
+    rb.push_back(MonitorId);
+    rb
+}
+
+#[inline]
+pub fn get_primary_monitor() -> MonitorId {
+    MonitorId
+}
+
+impl MonitorId {
+    #[inline]
+    pub fn get_name(&self) -> Option<String> {
+        Some("Primary".to_string())
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> NativeMonitorId {
+        NativeMonitorId::Unavailable
+    }
+
+    #[inline]
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        unimplemented!()
+    }
+}
+
+gen_api_transition!();
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificWindowBuilderAttributes;
+
+impl Window {
+
+    pub fn new(_: &WindowAttributes, _: &PlatformSpecificWindowBuilderAttributes) -> Result<Window, CreationError>
+    {
+        unsafe {
+            if setjmp(mem::transmute(&mut jmpbuf)) != 0 {
+                let app: id = msg_send![Class::get("UIApplication").unwrap(), sharedApplication];
+                let delegate: id = msg_send![app, delegate];
+                let state: *mut c_void = *(&*delegate).get_ivar("glutinState");
+                let state = state as *mut DelegateState;
+
+                let window = Window {
+                    delegate_state: state
+                };
+
+                return Ok(window)
+            }
+        }
+
+        Window::create_delegate_class();
+        Window::create_view_class();
+        Window::start_app();
+
+        Err(CreationError::OsError(format!("Couldn't create UIApplication")))
+    }
+
+    fn create_delegate_class() {
+        extern fn did_finish_launching(this: &mut Object, _: Sel, _: id, _: id) -> BOOL {
+            unsafe {
+                let main_screen: id = msg_send![Class::get("UIScreen").unwrap(), mainScreen];
+                let bounds: CGRect = msg_send![main_screen, bounds];
+                let scale: CGFloat = msg_send![main_screen, nativeScale];
+
+                let window: id = msg_send![Class::get("UIWindow").unwrap(), alloc];
+                let window: id = msg_send![window, initWithFrame:bounds.clone()];
+
+                let size = (bounds.size.width as u32, bounds.size.height as u32);
+
+                let view_controller: id = msg_send![Class::get("MainViewController").unwrap(), alloc];
+                let view_controller: id = msg_send![view_controller, init];
+
+                let _: () = msg_send![window, setRootViewController:view_controller];
+                let _: () = msg_send![window, makeKeyAndVisible];
+
+                let state = Box::new(DelegateState::new(window, view_controller, size, scale as f32));
+                let state_ptr: *mut DelegateState = mem::transmute(state);
+                this.set_ivar("glutinState", state_ptr as *mut c_void);
+
+
+                let _: () = msg_send![this, performSelector:sel!(postLaunch:) withObject:nil afterDelay:0.0];
+            }
+            YES
+        }
+
+        extern fn post_launch(_: &Object, _: Sel, _: id) {
+            unsafe { longjmp(mem::transmute(&mut jmpbuf),1); }
+        }
+
+        extern fn did_become_active(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = &mut *(state as *mut DelegateState);
+                state.events_queue.push_back(Event::Focused(true));
+            }
+        }
+
+        extern fn will_resign_active(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = &mut *(state as *mut DelegateState);
+                state.events_queue.push_back(Event::Focused(false));
+            }
+        }
+
+        extern fn will_enter_foreground(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = &mut *(state as *mut DelegateState);
+                state.events_queue.push_back(Event::Suspended(false));
+            }
+        }
+
+        extern fn did_enter_background(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = &mut *(state as *mut DelegateState);
+                state.events_queue.push_back(Event::Suspended(true));
+            }
+        }
+
+        extern fn will_terminate(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = &mut *(state as *mut DelegateState);
+                // push event to the front to garantee that we'll process it
+                // immidiatly after jump
+                state.events_queue.push_front(Event::Closed);
+                longjmp(mem::transmute(&mut jmpbuf),1);
+            }
+        }
+
+        extern fn handle_touches(this: &Object, _: Sel, touches: id, _:id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("glutinState");
+                let state = &mut *(state as *mut DelegateState);
+
+                let touches_enum: id = msg_send![touches, objectEnumerator];
+
+                loop {
+                    let touch: id = msg_send![touches_enum, nextObject];
+                    if touch == nil {
+                        break
+                    }
+                    let location: CGPoint = msg_send![touch, locationInView:nil];
+                    let touch_id = touch as u64;
+                    let phase: i32 = msg_send![touch, phase];
+
+                    state.events_queue.push_back(Event::Touch(Touch {
+                        id: touch_id,
+                        location: (location.x as f64, location.y as f64),
+                        phase: match phase {
+                            0 => TouchPhase::Started,
+                            1 => TouchPhase::Moved,
+                            // 2 is UITouchPhaseStationary and is not expected here
+                            3 => TouchPhase::Ended,
+                            4 => TouchPhase::Cancelled,
+                            _ => panic!("unexpected touch phase: {:?}", phase)
+                        }
+                    }));
+                }
+            }
+        }
+
+        let ui_responder = Class::get("UIResponder").unwrap();
+        let mut decl = ClassDecl::new("AppDelegate", ui_responder).unwrap();
+
+        unsafe {
+            decl.add_method(sel!(application:didFinishLaunchingWithOptions:),
+                            did_finish_launching as extern fn(&mut Object, Sel, id, id) -> BOOL);
+
+            decl.add_method(sel!(applicationDidBecomeActive:),
+                            did_become_active as extern fn(&Object, Sel, id));
+
+            decl.add_method(sel!(applicationWillResignActive:),
+                            will_resign_active as extern fn(&Object, Sel, id));
+
+            decl.add_method(sel!(applicationWillEnterForeground:),
+                            will_enter_foreground as extern fn(&Object, Sel, id));
+
+            decl.add_method(sel!(applicationDidEnterBackground:),
+                            did_enter_background as extern fn(&Object, Sel, id));
+
+            decl.add_method(sel!(applicationWillTerminate:),
+                            will_terminate as extern fn(&Object, Sel, id));
+
+
+            decl.add_method(sel!(touchesBegan:withEvent:),
+                            handle_touches as extern fn(this: &Object, _: Sel, _: id, _:id));
+
+            decl.add_method(sel!(touchesMoved:withEvent:),
+                            handle_touches as extern fn(this: &Object, _: Sel, _: id, _:id));
+
+            decl.add_method(sel!(touchesEnded:withEvent:),
+                            handle_touches as extern fn(this: &Object, _: Sel, _: id, _:id));
+
+            decl.add_method(sel!(touchesCancelled:withEvent:),
+                            handle_touches as extern fn(this: &Object, _: Sel, _: id, _:id));
+
+
+            decl.add_method(sel!(postLaunch:),
+                            post_launch as extern fn(&Object, Sel, id));
+
+            decl.add_ivar::<*mut c_void>("glutinState");
+
+            decl.register();
+        }
+    }
+
+    fn create_view_class() {
+        let ui_view_controller = Class::get("UIViewController").unwrap();
+        let decl = ClassDecl::new("MainViewController", ui_view_controller).unwrap();
+
+        decl.register();
+    }
+
+    #[inline]
+    fn start_app() {
+        unsafe {
+            UIApplicationMain(0, ptr::null(), nil, NSString::alloc(nil).init_str("AppDelegate"));
+        }
+    }
+
+    #[inline]
+    pub fn set_title(&self, _: &str) {
+    }
+
+    #[inline]
+    pub fn show(&self) {
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+    }
+
+    #[inline]
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        None
+    }
+
+    #[inline]
+    pub fn set_position(&self, _x: i32, _y: i32) {
+    }
+
+    #[inline]
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        unsafe { Some((&*self.delegate_state).size) }
+    }
+
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        self.get_inner_size()
+    }
+
+    #[inline]
+    pub fn set_inner_size(&self, _x: u32, _y: u32) {
+    }
+
+    #[inline]
+    pub fn poll_events(&self) -> PollEventsIterator {
+        PollEventsIterator {
+            window: self
+        }
+    }
+
+    #[inline]
+    pub fn wait_events(&self) -> WaitEventsIterator {
+        WaitEventsIterator {
+            window: self
+        }
+    }
+
+    #[inline]
+    pub fn platform_display(&self) -> *mut libc::c_void {
+        unimplemented!();
+    }
+
+    #[inline]
+    pub fn platform_window(&self) -> *mut libc::c_void {
+        unimplemented!()
+    }
+
+    #[inline]
+    pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
+    }
+
+    #[inline]
+    pub fn set_cursor(&self, _: MouseCursor) {
+    }
+
+    #[inline]
+    pub fn set_cursor_state(&self, _: CursorState) -> Result<(), String> {
+        Ok(())
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+        unsafe { (&*self.delegate_state) }.scale
+    }
+
+    #[inline]
+    pub fn set_cursor_position(&self, _x: i32, _y: i32) -> Result<(), ()> {
+        unimplemented!();
+    }
+
+    #[inline]
+    pub fn create_window_proxy(&self) -> WindowProxy {
+        WindowProxy
+    }
+
+}
+
+impl WindowProxy {
+    #[inline]
+    pub fn wakeup_event_loop(&self) {
+        unimplemented!()
+    }
+}
+
+
+impl<'a> Iterator for WaitEventsIterator<'a> {
+    type Item = Event;
+
+    #[inline]
+    fn next(&mut self) -> Option<Event> {
+        loop {
+            if let Some(ev) = self.window.poll_events().next() {
+                return Some(ev);
+            }
+        }
+    }
+}
+
+impl<'a> Iterator for PollEventsIterator<'a> {
+    type Item = Event;
+
+    fn next(&mut self) -> Option<Event> {
+        unsafe {
+            let state = &mut *self.window.delegate_state;
+
+            if let Some(event) = state.events_queue.pop_front() {
+                return Some(event)
+            }
+
+            // jump hack, so we won't quit on willTerminate event before processing it
+            if setjmp(mem::transmute(&mut jmpbuf)) != 0 {
+                return state.events_queue.pop_front()
+            }
+
+            // run runloop
+            let seconds: CFTimeInterval = 0.000002;
+            while CFRunLoopRunInMode(kCFRunLoopDefaultMode, seconds, 1) == kCFRunLoopRunHandledSource {}
+
+            state.events_queue.pop_front()
+        }
+    }
+}

src/platform/linux/dlopen.rs

@@ -0,0 +1,15 @@
+#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))]
+#![allow(dead_code)]
+
+use std::os::raw::{c_void, c_char, c_int};
+
+pub const RTLD_LAZY: c_int = 0x001;
+pub const RTLD_NOW: c_int = 0x002;
+
+#[link="dl"]
+extern {
+    pub fn dlopen(filename: *const c_char, flag: c_int) -> *mut c_void;
+    pub fn dlerror() -> *mut c_char;
+    pub fn dlsym(handle: *mut c_void, symbol: *const c_char) -> *mut c_void;
+    pub fn dlclose(handle: *mut c_void) -> c_int;
+}

src/platform/linux/mod.rs

@@ -0,0 +1,345 @@
+#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))]
+
+use std::collections::VecDeque;
+use std::sync::Arc;
+
+use CreationError;
+use CursorState;
+use MouseCursor;
+use libc;
+
+use self::x11::XConnection;
+use self::x11::XError;
+use self::x11::XNotSupported;
+use self::x11::ffi::XVisualInfo;
+
+mod dlopen;
+pub mod wayland;
+pub mod x11;
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificWindowBuilderAttributes {
+    pub visual_infos: Option<XVisualInfo>,
+    pub screen_id: Option<i32>,
+}
+
+pub enum UnixBackend {
+    X(Arc<XConnection>),
+    Wayland(Arc<wayland::WaylandContext>),
+    Error(XNotSupported),
+} 
+
+lazy_static!(
+    pub static ref UNIX_BACKEND: UnixBackend = {
+        if let Some(ctxt) = wayland::WaylandContext::init() {
+            UnixBackend::Wayland(Arc::new(ctxt))
+        } else {
+            match XConnection::new(Some(x_error_callback)) {
+                Ok(x) => UnixBackend::X(Arc::new(x)),
+                Err(e) => UnixBackend::Error(e),
+            }
+        }
+    };
+);
+
+
+pub enum Window2 {
+    #[doc(hidden)]
+    X(x11::Window2),
+    #[doc(hidden)]
+    Wayland(wayland::Window)
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub enum WindowId {
+    #[doc(hidden)]
+    X(x11::WindowId),
+    #[doc(hidden)]
+    Wayland(wayland::WindowId)
+}
+
+#[derive(Clone)]
+pub enum MonitorId {
+    #[doc(hidden)]
+    X(x11::MonitorId),
+    #[doc(hidden)]
+    Wayland(wayland::MonitorId),
+    #[doc(hidden)]
+    None,
+}
+
+#[inline]
+pub fn get_available_monitors() -> VecDeque<MonitorId> {
+    match *UNIX_BACKEND {
+        UnixBackend::Wayland(ref ctxt) => wayland::get_available_monitors(ctxt)
+                                .into_iter()
+                                .map(MonitorId::Wayland)
+                                .collect(),
+        UnixBackend::X(ref connec) => x11::get_available_monitors(connec)
+                                    .into_iter()
+                                    .map(MonitorId::X)
+                                    .collect(),
+        UnixBackend::Error(_) => { let mut d = VecDeque::new(); d.push_back(MonitorId::None); d},
+    }
+}
+
+#[inline]
+pub fn get_primary_monitor() -> MonitorId {
+    match *UNIX_BACKEND {
+        UnixBackend::Wayland(ref ctxt) => MonitorId::Wayland(wayland::get_primary_monitor(ctxt)),
+        UnixBackend::X(ref connec) => MonitorId::X(x11::get_primary_monitor(connec)),
+        UnixBackend::Error(_) => MonitorId::None,
+    }
+}
+
+impl MonitorId {
+    #[inline]
+    pub fn get_name(&self) -> Option<String> {
+        match self {
+            &MonitorId::X(ref m) => m.get_name(),
+            &MonitorId::Wayland(ref m) => m.get_name(),
+            &MonitorId::None => None,
+        }
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> ::native_monitor::NativeMonitorId {
+        match self {
+            &MonitorId::X(ref m) => m.get_native_identifier(),
+            &MonitorId::Wayland(ref m) => m.get_native_identifier(),
+            &MonitorId::None => unimplemented!()        // FIXME:
+        }
+    }
+
+    #[inline]
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        match self {
+            &MonitorId::X(ref m) => m.get_dimensions(),
+            &MonitorId::Wayland(ref m) => m.get_dimensions(),
+            &MonitorId::None => (800, 600),     // FIXME:
+        }
+    }
+}
+
+impl Window2 {
+    #[inline]
+    pub fn new(events_loop: ::std::sync::Arc<EventsLoop>, window: &::WindowAttributes,
+               pl_attribs: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window2, CreationError>
+    {
+        match *UNIX_BACKEND {
+            UnixBackend::Wayland(ref ctxt) => {
+                if let EventsLoop::Wayland(ref evlp) = *events_loop {
+                    wayland::Window::new(evlp, ctxt.clone(), window).map(Window2::Wayland)
+                } else {
+                    // It is not possible to instanciate an EventsLoop not matching its backend
+                    unreachable!()
+                }
+            },
+
+            UnixBackend::X(ref connec) => {
+                x11::Window2::new(events_loop, connec, window, pl_attribs).map(Window2::X)
+            },
+            UnixBackend::Error(_) => {
+                // If the Backend is Error(), it is not possible to instanciate an EventsLoop at all,
+                // thus this function cannot be called!
+                unreachable!()
+            }
+        }
+    }
+
+    #[inline]
+    pub fn id(&self) -> WindowId {
+        match self {
+            &Window2::X(ref w) => WindowId::X(w.id()),
+            &Window2::Wayland(ref w) => WindowId::Wayland(w.id())
+        }
+    }
+
+    #[inline]
+    pub fn set_title(&self, title: &str) {
+        match self {
+            &Window2::X(ref w) => w.set_title(title),
+            &Window2::Wayland(ref w) => w.set_title(title)
+        }
+    }
+
+    #[inline]
+    pub fn show(&self) {
+        match self {
+            &Window2::X(ref w) => w.show(),
+            &Window2::Wayland(ref w) => w.show()
+        }
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+        match self {
+            &Window2::X(ref w) => w.hide(),
+            &Window2::Wayland(ref w) => w.hide()
+        }
+    }
+
+    #[inline]
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        match self {
+            &Window2::X(ref w) => w.get_position(),
+            &Window2::Wayland(ref w) => w.get_position()
+        }
+    }
+
+    #[inline]
+    pub fn set_position(&self, x: i32, y: i32) {
+        match self {
+            &Window2::X(ref w) => w.set_position(x, y),
+            &Window2::Wayland(ref w) => w.set_position(x, y)
+        }
+    }
+
+    #[inline]
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        match self {
+            &Window2::X(ref w) => w.get_inner_size(),
+            &Window2::Wayland(ref w) => w.get_inner_size()
+        }
+    }
+
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        match self {
+            &Window2::X(ref w) => w.get_outer_size(),
+            &Window2::Wayland(ref w) => w.get_outer_size()
+        }
+    }
+
+    #[inline]
+    pub fn set_inner_size(&self, x: u32, y: u32) {
+        match self {
+            &Window2::X(ref w) => w.set_inner_size(x, y),
+            &Window2::Wayland(ref w) => w.set_inner_size(x, y)
+        }
+    }
+
+    #[inline]
+    pub fn set_cursor(&self, cursor: MouseCursor) {
+        match self {
+            &Window2::X(ref w) => w.set_cursor(cursor),
+            &Window2::Wayland(ref w) => w.set_cursor(cursor)
+        }
+    }
+
+    #[inline]
+    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+        match self {
+            &Window2::X(ref w) => w.set_cursor_state(state),
+            &Window2::Wayland(ref w) => w.set_cursor_state(state)
+        }
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+       match self {
+            &Window2::X(ref w) => w.hidpi_factor(),
+            &Window2::Wayland(ref w) => w.hidpi_factor()
+        }
+    }
+
+    #[inline]
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        match self {
+            &Window2::X(ref w) => w.set_cursor_position(x, y),
+            &Window2::Wayland(ref w) => w.set_cursor_position(x, y)
+        }
+    }
+
+    #[inline]
+    pub fn platform_display(&self) -> *mut libc::c_void {
+        use wayland_client::Proxy;
+        match self {
+            &Window2::X(ref w) => w.platform_display(),
+            &Window2::Wayland(ref w) => w.get_display().ptr() as *mut _
+        }
+    }
+
+    #[inline]
+    pub fn platform_window(&self) -> *mut libc::c_void {
+        use wayland_client::Proxy;
+        match self {
+            &Window2::X(ref w) => w.platform_window(),
+            &Window2::Wayland(ref w) => w.get_surface().ptr() as *mut _
+        }
+    }
+}
+
+unsafe extern "C" fn x_error_callback(dpy: *mut x11::ffi::Display, event: *mut x11::ffi::XErrorEvent)
+                                      -> libc::c_int
+{
+    use std::ffi::CStr;
+
+    if let UnixBackend::X(ref x) = *UNIX_BACKEND {
+        let mut buff: Vec<u8> = Vec::with_capacity(1024);
+        (x.xlib.XGetErrorText)(dpy, (*event).error_code as i32, buff.as_mut_ptr() as *mut libc::c_char, buff.capacity() as i32);
+        let description = CStr::from_ptr(buff.as_mut_ptr() as *const libc::c_char).to_string_lossy();
+
+        let error = XError {
+            description: description.into_owned(),
+            error_code: (*event).error_code,
+            request_code: (*event).request_code,
+            minor_code: (*event).minor_code,
+        };
+
+        *x.latest_error.lock().unwrap() = Some(error);
+    }
+
+    0
+}
+
+pub enum EventsLoop {
+    #[doc(hidden)]
+    Wayland(wayland::EventsLoop),
+    #[doc(hidden)]
+    X(x11::EventsLoop)
+}
+
+impl EventsLoop {
+    pub fn new() -> EventsLoop {
+        match *UNIX_BACKEND {
+            UnixBackend::Wayland(ref ctxt) => {
+                EventsLoop::Wayland(wayland::EventsLoop::new(ctxt.clone()))
+            },
+
+            UnixBackend::X(_) => {
+                EventsLoop::X(x11::EventsLoop::new())
+            },
+
+            UnixBackend::Error(_) => {
+                panic!("Attempted to create an EventsLoop while no backend was available.")
+            }
+        }
+    }
+
+    pub fn interrupt(&self) {
+        match *self {
+            EventsLoop::Wayland(ref evlp) => evlp.interrupt(),
+            EventsLoop::X(ref evlp) => evlp.interrupt()
+        }
+    }
+
+    pub fn poll_events<F>(&self, callback: F)
+        where F: FnMut(::Event)
+    {
+        match *self {
+            EventsLoop::Wayland(ref evlp) => evlp.poll_events(callback),
+            EventsLoop::X(ref evlp) => evlp.poll_events(callback)
+        }
+    }
+
+    pub fn run_forever<F>(&self, callback: F)
+        where F: FnMut(::Event)
+    {
+        match *self {
+            EventsLoop::Wayland(ref evlp) => evlp.run_forever(callback),
+            EventsLoop::X(ref evlp) => evlp.run_forever(callback)
+        }
+    }
+}

src/platform/linux/wayland/context.rs

@@ -0,0 +1,297 @@
+use std::collections::VecDeque;
+use std::sync::{Arc, Mutex};
+
+use wayland_client::{EnvHandler, default_connect, EventQueue, EventQueueHandle, Init, Proxy};
+use wayland_client::protocol::{wl_compositor, wl_seat, wl_shell, wl_shm, wl_subcompositor,
+                               wl_display, wl_registry, wl_output, wl_surface};
+
+use super::wayland_window;
+
+/*
+ * Registry and globals handling
+ */
+
+wayland_env!(InnerEnv,
+    compositor: wl_compositor::WlCompositor,
+    shell: wl_shell::WlShell,
+    shm: wl_shm::WlShm,
+    subcompositor: wl_subcompositor::WlSubcompositor
+);
+
+struct WaylandEnv {
+    registry: wl_registry::WlRegistry,
+    inner: EnvHandler<InnerEnv>,
+    monitors: Vec<OutputInfo>,
+    my_id: usize,
+}
+
+struct OutputInfo {
+    output: wl_output::WlOutput,
+    id: u32,
+    scale: f32,
+    pix_size: (u32, u32),
+    name: String
+}
+
+impl OutputInfo {
+    fn new(output: wl_output::WlOutput, id: u32) -> OutputInfo {
+        OutputInfo {
+            output: output,
+            id: id,
+            scale: 1.0,
+            pix_size: (0, 0),
+            name: "".into()
+        }
+    }
+}
+
+impl WaylandEnv {
+    fn new(registry: wl_registry::WlRegistry) -> WaylandEnv {
+        WaylandEnv {
+            registry: registry,
+            inner: EnvHandler::new(),
+            monitors: Vec::new(),
+            my_id: 0,
+        }
+    }
+
+    fn get_seat(&self) -> Option<wl_seat::WlSeat> {
+        for &(name, ref interface, version) in self.inner.globals() {
+            if interface == "wl_seat" {
+                if version < 5 {
+                    panic!("Winit requires at least version 5 of the wl_seat global.");
+                }
+                let seat = self.registry.bind::<wl_seat::WlSeat>(5, name);
+                return Some(seat)
+            }
+        }
+        None
+    }
+}
+
+impl Init for WaylandEnv {
+    fn init(&mut self, evqh: &mut EventQueueHandle, index: usize) {
+        evqh.register::<_, WaylandEnv>(&self.registry, index);
+        self.my_id = index
+    }
+}
+
+impl wl_registry::Handler for WaylandEnv {
+    fn global(&mut self,
+              evqh: &mut EventQueueHandle,
+              registry: &wl_registry::WlRegistry,
+              name: u32,
+              interface: String,
+              version: u32)
+    {
+        if interface == "wl_output" {
+            // intercept outputs
+            // this "expect" cannot trigger (see https://github.com/vberger/wayland-client-rs/issues/69)
+            let output = self.registry.bind::<wl_output::WlOutput>(1, name);
+            evqh.register::<_, WaylandEnv>(&output, self.my_id);
+            self.monitors.push(OutputInfo::new(output, name));
+        }
+        self.inner.global(evqh, registry, name, interface, version);
+    }
+
+    fn global_remove(&mut self,
+                     evqh: &mut EventQueueHandle,
+                     registry: &wl_registry::WlRegistry,
+                     name: u32)
+    {
+        // prune old monitors
+        self.monitors.retain(|m| m.id != name);
+        self.inner.global_remove(evqh, registry, name);
+    }
+}
+
+declare_handler!(WaylandEnv, wl_registry::Handler, wl_registry::WlRegistry);
+
+impl wl_output::Handler for WaylandEnv {
+    fn geometry(&mut self,
+                _: &mut EventQueueHandle,
+                proxy: &wl_output::WlOutput,
+                _x: i32, _y: i32,
+                _physical_width: i32, _physical_height: i32,
+                _subpixel: wl_output::Subpixel,
+                make: String, model: String,
+                _transform: wl_output::Transform)
+    {
+        for m in self.monitors.iter_mut().filter(|m| m.output.equals(proxy)) {
+            m.name = format!("{} ({})", model, make);
+            break;
+        }
+    }
+    fn mode(&mut self,
+            _: &mut EventQueueHandle,
+            proxy: &wl_output::WlOutput,
+            flags: wl_output::Mode,
+            width: i32, height: i32,
+            _refresh: i32)
+    {
+        if flags.contains(wl_output::Current) {
+            for m in self.monitors.iter_mut().filter(|m| m.output.equals(proxy)) {
+                m.pix_size = (width as u32, height as u32);
+                break;
+            }
+        }
+    }
+    fn scale(&mut self,
+             _: &mut EventQueueHandle,
+             proxy: &wl_output::WlOutput,
+             factor: i32)
+    {
+        for m in self.monitors.iter_mut().filter(|m| m.output.equals(proxy)) {
+            m.scale = factor as f32;
+            break;
+        }
+    }
+}
+
+declare_handler!(WaylandEnv, wl_output::Handler, wl_output::WlOutput);
+
+/*
+ * Main context struct
+ */
+
+pub struct WaylandContext {
+    pub display: wl_display::WlDisplay,
+    evq: Mutex<EventQueue>,
+    env_id: usize,
+}
+
+impl WaylandContext {
+    pub fn init() -> Option<WaylandContext> {
+        // attempt to connect to the wayland server
+        // this handles both "no libwayland" and "no compositor" cases
+        let (display, mut event_queue) = match default_connect() {
+            Ok(ret) => ret,
+            Err(_) => return None
+        };
+
+        // this "expect" cannot trigger (see https://github.com/vberger/wayland-client-rs/issues/69)
+        let registry = display.get_registry();
+        let env_id = event_queue.add_handler_with_init(WaylandEnv::new(registry));
+        // two syncs fully initialize
+        event_queue.sync_roundtrip().expect("Wayland connection unexpectedly lost");
+        event_queue.sync_roundtrip().expect("Wayland connection unexpectedly lost");
+
+        Some(WaylandContext {
+            evq: Mutex::new(event_queue),
+            display: display,
+            env_id: env_id
+        })
+    }
+
+    pub fn dispatch_pending(&self) {
+        let mut guard = self.evq.lock().unwrap();
+        guard.dispatch_pending().expect("Wayland connection unexpectedly lost");
+    }
+
+    pub fn dispatch(&self) {
+        let mut guard = self.evq.lock().unwrap();
+        guard.dispatch().expect("Wayland connection unexpectedly lost");
+    }
+
+    pub fn flush(&self) {
+        let _ = self.display.flush();
+    }
+
+    pub fn get_seat(&self) -> Option<wl_seat::WlSeat> {
+        let mut guard = self.evq.lock().unwrap();
+        let state = guard.state();
+        state.get_handler::<WaylandEnv>(self.env_id).get_seat()
+    }
+
+    pub fn with_output<F>(&self, id: MonitorId, f: F) where F: FnOnce(&wl_output::WlOutput) {
+        let mut guard = self.evq.lock().unwrap();
+        let state = guard.state();
+        let env = state.get_handler::<WaylandEnv>(self.env_id);
+        for m in env.monitors.iter().filter(|m| m.id == id.id) {
+            f(&m.output);
+            break
+        }
+    }
+
+    pub fn create_window<H: wayland_window::Handler>(&self)
+        -> (Arc<wl_surface::WlSurface>, wayland_window::DecoratedSurface<H>)
+    {
+        let mut guard = self.evq.lock().unwrap();
+        let mut state = guard.state();
+        let env = state.get_mut_handler::<WaylandEnv>(self.env_id);
+        // this "expect" cannot trigger (see https://github.com/vberger/wayland-client-rs/issues/69)
+        let surface = Arc::new(env.inner.compositor.create_surface());
+        let decorated = wayland_window::DecoratedSurface::new(
+            &*surface, 800, 600,
+            &env.inner.compositor,
+            &env.inner.subcompositor,
+            &env.inner.shm,
+            &env.inner.shell,
+            env.get_seat(),
+            false
+        ).expect("Failed to create a tmpfile buffer.");
+        (surface, decorated)
+    }
+}
+
+/*
+ * Monitors API
+ */
+
+pub fn get_primary_monitor(ctxt: &Arc<WaylandContext>) -> MonitorId {
+    let mut guard = ctxt.evq.lock().unwrap();
+    let state = guard.state();
+    let env = state.get_handler::<WaylandEnv>(ctxt.env_id);
+    if let Some(ref monitor) = env.monitors.iter().next() {
+        MonitorId {
+            id: monitor.id,
+            ctxt: ctxt.clone()
+        }
+    } else {
+        panic!("No monitor is available.")
+    }
+}
+
+pub fn get_available_monitors(ctxt: &Arc<WaylandContext>) -> VecDeque<MonitorId> {
+    let mut guard = ctxt.evq.lock().unwrap();
+    let state = guard.state();
+    let env = state.get_handler::<WaylandEnv>(ctxt.env_id);
+    env.monitors.iter()
+       .map(|m| MonitorId { id: m.id, ctxt: ctxt.clone() })
+       .collect()
+}
+
+#[derive(Clone)]
+pub struct MonitorId {
+    id: u32,
+    ctxt: Arc<WaylandContext>
+}
+
+impl MonitorId {
+    pub fn get_name(&self) -> Option<String> {
+        let mut guard = self.ctxt.evq.lock().unwrap();
+        let state = guard.state();
+        let env = state.get_handler::<WaylandEnv>(self.ctxt.env_id);
+        for m in env.monitors.iter().filter(|m| m.id == self.id) {
+            return Some(m.name.clone())
+        }
+        // if we reach here, this monitor does not exist any more
+        None
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> ::native_monitor::NativeMonitorId {
+        ::native_monitor::NativeMonitorId::Unavailable
+    }
+
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        let mut guard = self.ctxt.evq.lock().unwrap();
+        let state = guard.state();
+        let env = state.get_handler::<WaylandEnv>(self.ctxt.env_id);
+        for m in env.monitors.iter().filter(|m| m.id == self.id) {
+            return m.pix_size
+        }
+        // if we reach here, this monitor does not exist any more
+        (0,0)
+    }
+}

src/platform/linux/wayland/event_loop.rs

@@ -0,0 +1,592 @@
+use {WindowEvent as Event, ElementState, MouseButton, MouseScrollDelta, TouchPhase, ModifiersState};
+
+use std::sync::{Arc, Mutex};
+use std::sync::atomic::AtomicBool;
+
+use super::{DecoratedHandler, WindowId, WaylandContext};
+
+
+use wayland_client::{EventQueue, EventQueueHandle, Init, Proxy};
+use wayland_client::protocol::{wl_seat, wl_surface, wl_pointer, wl_keyboard};
+
+use super::make_wid;
+use super::wayland_window::DecoratedSurface;
+use super::wayland_kbd::MappedKeyboard;
+use super::keyboard::KbdHandler;
+
+/// This struct is used as a holder for the callback
+/// during the dispatching of events.
+///
+/// The proper ay to use it is:
+/// - set a callback in it (and retrieve the noop one it contains)
+/// - dispatch the EventQueue
+/// - put back the noop callback in it
+///
+/// Failure to do so is unsafe™
+pub struct EventsLoopSink {
+    callback: Box<FnMut(::Event)>
+}
+
+unsafe impl Send for EventsLoopSink { }
+
+impl EventsLoopSink {
+    pub fn new() -> EventsLoopSink {
+        EventsLoopSink {
+            callback: Box::new(|_| {}),
+        }
+    }
+
+    pub fn send_event(&mut self, evt: ::WindowEvent, wid: WindowId) {
+        let evt = ::Event::WindowEvent {
+            event: evt,
+            window_id: ::WindowId(::platform::WindowId::Wayland(wid))
+        };
+        (self.callback)(evt)
+    }
+
+    // This function is only safe of the set callback is unset before exclusive
+    // access to the wayland EventQueue is finished.
+    //
+    // The callback also cannot be used any longer as long as it has not been
+    // cleared from the Sink.
+    unsafe fn set_callback(&mut self, cb: Box<FnMut(::Event)>) -> Box<FnMut(::Event)> {
+        ::std::mem::replace(&mut self.callback, cb)
+    }
+
+    fn with_callback<F: FnOnce(&mut FnMut(::Event))>(&mut self, f: F) {
+        f(&mut *self.callback)
+    }
+}
+
+pub struct EventsLoop {
+    // the global wayland context
+    ctxt: Arc<WaylandContext>,
+    // our EventQueue
+    evq: Arc<Mutex<EventQueue>>,
+    // ids of the DecoratedHandlers of the surfaces we know
+    decorated_ids: Mutex<Vec<(usize, Arc<wl_surface::WlSurface>)>>,
+    // our sink, receiver of callbacks, shared with some handlers
+    sink: Arc<Mutex<EventsLoopSink>>,
+    // trigger interruption of the run
+    interrupted: AtomicBool,
+    // trigger cleanup of the dead surfaces
+    cleanup_needed: Arc<AtomicBool>,
+    hid: usize
+}
+
+impl EventsLoop {
+    pub fn new(ctxt: Arc<WaylandContext>) -> EventsLoop {
+        let mut evq = ctxt.display.create_event_queue();
+        let sink = Arc::new(Mutex::new(EventsLoopSink::new()));
+        let hid = evq.add_handler_with_init(InputHandler::new(&ctxt, sink.clone()));
+        EventsLoop {
+            ctxt: ctxt,
+            evq: Arc::new(Mutex::new(evq)),
+            decorated_ids: Mutex::new(Vec::new()),
+            sink: sink,
+            interrupted: AtomicBool::new(false),
+            cleanup_needed: Arc::new(AtomicBool::new(false)),
+            hid: hid
+        }
+    }
+
+    // some internals that Window needs access to
+    pub fn get_window_init(&self) -> (Arc<Mutex<EventQueue>>, Arc<AtomicBool>) {
+        (self.evq.clone(), self.cleanup_needed.clone())
+    }
+
+    pub fn register_window(&self, decorated_id: usize, surface: Arc<wl_surface::WlSurface>) {
+        self.decorated_ids.lock().unwrap().push((decorated_id, surface.clone()));
+        let mut guard = self.evq.lock().unwrap();
+        let mut state = guard.state();
+        state.get_mut_handler::<InputHandler>(self.hid).windows.push(surface);
+    }
+
+    fn process_resize(evq: &mut EventQueue, ids: &[(usize, Arc<wl_surface::WlSurface>)], callback: &mut FnMut(::Event))
+    {
+        let mut state = evq.state();
+        for &(decorated_id, ref window) in ids {
+            let decorated = state.get_mut_handler::<DecoratedSurface<DecoratedHandler>>(decorated_id);
+            if let Some((w, h)) = decorated.handler().as_mut().and_then(|h| h.take_newsize()) {
+                decorated.resize(w as i32, h as i32);
+                callback(
+                    ::Event::WindowEvent {
+                        window_id: ::WindowId(::platform::WindowId::Wayland(make_wid(&window))),
+                        event: ::WindowEvent::Resized(w,h)
+                    }
+                );
+            }
+        }
+    }
+
+    pub fn interrupt(&self) {
+        self.interrupted.store(true, ::std::sync::atomic::Ordering::Relaxed);
+    }
+
+    fn prune_dead_windows(&self) {
+        self.decorated_ids.lock().unwrap().retain(|&(_, ref w)| w.is_alive());
+        let mut evq_guard = self.evq.lock().unwrap();
+        let mut state = evq_guard.state();
+        let handler = state.get_mut_handler::<InputHandler>(self.hid);
+        handler.windows.retain(|w| w.is_alive());
+        if let Some(w) = handler.mouse_focus.take() {
+            if w.is_alive() {
+                handler.mouse_focus = Some(w)
+            }
+        }
+    }
+
+    pub fn poll_events<F>(&self, callback: F)
+        where F: FnMut(::Event)
+    {
+        // send pending requests to the server...
+        self.ctxt.flush();
+
+        // first of all, get exclusive access to this event queue
+        let mut evq_guard = self.evq.lock().unwrap();
+
+        // read some events from the socket if some are waiting & queue is empty
+        if let Some(guard) = evq_guard.prepare_read() {
+            guard.read_events().expect("Wayland connection unexpectedly lost");
+        }
+
+        // set the callback into the sink
+        // we extend the lifetime of the closure to 'static to be able to put it in
+        // the sink, but we'll explicitly drop it at the end of this function, so it's fine
+        let static_cb = unsafe { ::std::mem::transmute(Box::new(callback) as Box<FnMut(_)>) };
+        let old_cb = unsafe { self.sink.lock().unwrap().set_callback(static_cb) };
+
+        // then do the actual dispatching
+        self.ctxt.dispatch_pending();
+        evq_guard.dispatch_pending().expect("Wayland connection unexpectedly lost");
+
+        let mut sink_guard = self.sink.lock().unwrap();
+
+        // events where probably dispatched, process resize
+        let ids_guard = self.decorated_ids.lock().unwrap();
+        sink_guard.with_callback(
+            |cb| Self::process_resize(&mut evq_guard, &ids_guard, cb)
+        );
+
+        // replace the old noop callback
+        unsafe { self.sink.lock().unwrap().set_callback(old_cb) };
+
+        if self.cleanup_needed.swap(false, ::std::sync::atomic::Ordering::Relaxed) {
+            self.prune_dead_windows()
+        }
+    }
+
+    pub fn run_forever<F>(&self, callback: F)
+        where F: FnMut(::Event)
+    {
+        // send pending requests to the server...
+        self.ctxt.flush();
+
+        // first of all, get exclusive access to this event queue
+        let mut evq_guard = self.evq.lock().unwrap();
+
+        // set the callback into the sink
+        // we extend the lifetime of the closure to 'static to be able to put it in
+        // the sink, but we'll explicitly drop it at the end of this function, so it's fine
+        let static_cb = unsafe { ::std::mem::transmute(Box::new(callback) as Box<FnMut(_)>) };
+        let old_cb = unsafe { self.sink.lock().unwrap().set_callback(static_cb) };
+
+        while !self.interrupted.load(::std::sync::atomic::Ordering::Relaxed) {
+            self.ctxt.dispatch();
+            evq_guard.dispatch_pending().expect("Wayland connection unexpectedly lost");
+            let ids_guard = self.decorated_ids.lock().unwrap();
+            self.sink.lock().unwrap().with_callback(
+                |cb| Self::process_resize(&mut evq_guard, &ids_guard, cb)
+            );
+            self.ctxt.flush();
+
+            if self.cleanup_needed.swap(false, ::std::sync::atomic::Ordering::Relaxed) {
+                self.prune_dead_windows()
+            }
+        }
+
+        // replace the old noop callback
+        unsafe { self.sink.lock().unwrap().set_callback(old_cb) };
+    }
+}
+
+enum KbdType {
+    Mapped(MappedKeyboard<KbdHandler>),
+    Plain(Option<WindowId>)
+}
+
+struct InputHandler {
+    my_id: usize,
+    windows: Vec<Arc<wl_surface::WlSurface>>,
+    seat: Option<wl_seat::WlSeat>,
+    mouse: Option<wl_pointer::WlPointer>,
+    mouse_focus: Option<Arc<wl_surface::WlSurface>>,
+    mouse_location: (i32, i32),
+    axis_buffer: Option<(f32, f32)>,
+    axis_discrete_buffer: Option<(i32, i32)>,
+    axis_state: TouchPhase,
+    kbd: Option<wl_keyboard::WlKeyboard>,
+    kbd_handler: KbdType,
+    callback: Arc<Mutex<EventsLoopSink>>
+}
+
+impl InputHandler {
+    fn new(ctxt: &WaylandContext, sink: Arc<Mutex<EventsLoopSink>>) -> InputHandler {
+        let kbd_handler = match MappedKeyboard::new(KbdHandler::new(sink.clone())) {
+            Ok(h) => KbdType::Mapped(h),
+            Err(_) => KbdType::Plain(None)
+        };
+        InputHandler {
+            my_id: 0,
+            windows: Vec::new(),
+            seat: ctxt.get_seat(),
+            mouse: None,
+            mouse_focus: None,
+            mouse_location: (0,0),
+            axis_buffer: None,
+            axis_discrete_buffer: None,
+            axis_state: TouchPhase::Started,
+            kbd: None,
+            kbd_handler: kbd_handler,
+            callback: sink
+        }
+    }
+}
+
+impl Init for InputHandler {
+    fn init(&mut self, evqh: &mut EventQueueHandle, index: usize) {
+        if let Some(ref seat) = self.seat {
+            evqh.register::<_, InputHandler>(seat, index);
+        }
+        self.my_id = index;
+    }
+}
+
+impl wl_seat::Handler for InputHandler {
+    fn capabilities(&mut self,
+                    evqh: &mut EventQueueHandle,
+                    seat: &wl_seat::WlSeat,
+                    capabilities: wl_seat::Capability)
+    {
+        // create pointer if applicable
+        if capabilities.contains(wl_seat::Pointer) && self.mouse.is_none() {
+            let pointer = seat.get_pointer().expect("Seat is not dead");
+            evqh.register::<_, InputHandler>(&pointer, self.my_id);
+            self.mouse = Some(pointer);
+        }
+        // destroy pointer if applicable
+        if !capabilities.contains(wl_seat::Pointer) {
+            if let Some(pointer) = self.mouse.take() {
+                pointer.release();
+            }
+        }
+        // create keyboard if applicable
+        if capabilities.contains(wl_seat::Keyboard) && self.kbd.is_none() {
+            let kbd = seat.get_keyboard().expect("Seat is not dead");
+            evqh.register::<_, InputHandler>(&kbd, self.my_id);
+            self.kbd = Some(kbd);
+        }
+        // destroy keyboard if applicable
+        if !capabilities.contains(wl_seat::Keyboard) {
+            if let Some(kbd) = self.kbd.take() {
+                kbd.release();
+            }
+        }
+    }
+}
+
+declare_handler!(InputHandler, wl_seat::Handler, wl_seat::WlSeat);
+
+/*
+ * Pointer Handling
+ */
+
+impl wl_pointer::Handler for InputHandler {
+    fn enter(&mut self,
+             _evqh: &mut EventQueueHandle,
+             _proxy: &wl_pointer::WlPointer,
+             _serial: u32,
+             surface: &wl_surface::WlSurface,
+             surface_x: f64,
+             surface_y: f64)
+    {
+        self.mouse_location = (surface_x as i32, surface_y as i32);
+        for window in &self.windows {
+            if window.equals(surface) {
+                self.mouse_focus = Some(window.clone());
+                let (w, h) = self.mouse_location;
+                let mut guard = self.callback.lock().unwrap();
+                guard.send_event(Event::MouseEntered, make_wid(window));
+                guard.send_event(Event::MouseMoved(w, h), make_wid(window));
+                break;
+            }
+        }
+    }
+
+    fn leave(&mut self,
+             _evqh: &mut EventQueueHandle,
+             _proxy: &wl_pointer::WlPointer,
+             _serial: u32,
+             surface: &wl_surface::WlSurface)
+    {
+        self.mouse_focus = None;
+        for window in &self.windows {
+            if window.equals(surface) {
+                self.callback.lock().unwrap().send_event(Event::MouseLeft, make_wid(window));
+            }
+        }
+    }
+
+    fn motion(&mut self,
+              _evqh: &mut EventQueueHandle,
+              _proxy: &wl_pointer::WlPointer,
+              _time: u32,
+              surface_x: f64,
+              surface_y: f64)
+    {
+        self.mouse_location = (surface_x as i32, surface_y as i32);
+        if let Some(ref window) = self.mouse_focus {
+            let (w,h) = self.mouse_location;
+            self.callback.lock().unwrap().send_event(Event::MouseMoved(w, h), make_wid(window));
+        }
+    }
+
+    fn button(&mut self,
+              _evqh: &mut EventQueueHandle,
+              _proxy: &wl_pointer::WlPointer,
+              _serial: u32,
+              _time: u32,
+              button: u32,
+              state: wl_pointer::ButtonState)
+    {
+        if let Some(ref window) = self.mouse_focus {
+            let state = match state {
+                wl_pointer::ButtonState::Pressed => ElementState::Pressed,
+                wl_pointer::ButtonState::Released => ElementState::Released
+            };
+            let button = match button {
+                0x110 => MouseButton::Left,
+                0x111 => MouseButton::Right,
+                0x112 => MouseButton::Middle,
+                // TODO figure out the translation ?
+                _ => return
+            };
+            self.callback.lock().unwrap().send_event(Event::MouseInput(state, button), make_wid(window));
+        }
+    }
+
+    fn axis(&mut self,
+            _evqh: &mut EventQueueHandle,
+            _proxy: &wl_pointer::WlPointer,
+            _time: u32,
+            axis: wl_pointer::Axis,
+            value: f64)
+    {
+        let (mut x, mut y) = self.axis_buffer.unwrap_or((0.0, 0.0));
+        match axis {
+            wl_pointer::Axis::VerticalScroll => y += value as f32,
+            wl_pointer::Axis::HorizontalScroll => x += value as f32
+        }
+        self.axis_buffer = Some((x,y));
+        self.axis_state = match self.axis_state {
+            TouchPhase::Started | TouchPhase::Moved => TouchPhase::Moved,
+            _ => TouchPhase::Started
+        }
+    }
+
+    fn frame(&mut self,
+             _evqh: &mut EventQueueHandle,
+             _proxy: &wl_pointer::WlPointer)
+    {
+        let axis_buffer = self.axis_buffer.take();
+        let axis_discrete_buffer = self.axis_discrete_buffer.take();
+        if let Some(ref window) = self.mouse_focus {
+            if let Some((x, y)) = axis_discrete_buffer {
+                self.callback.lock().unwrap().send_event(
+                    Event::MouseWheel(
+                        MouseScrollDelta::LineDelta(x as f32, y as f32),
+                        self.axis_state
+                    ),
+                    make_wid(window)
+                );
+            } else if let Some((x, y)) = axis_buffer {
+                self.callback.lock().unwrap().send_event(
+                    Event::MouseWheel(
+                        MouseScrollDelta::PixelDelta(x as f32, y as f32),
+                        self.axis_state
+                    ),
+                    make_wid(window)
+                );
+            }
+        }
+    }
+
+    fn axis_source(&mut self,
+                   _evqh: &mut EventQueueHandle,
+                   _proxy: &wl_pointer::WlPointer,
+                   _axis_source: wl_pointer::AxisSource)
+    {
+    }
+
+    fn axis_stop(&mut self,
+                 _evqh: &mut EventQueueHandle,
+                 _proxy: &wl_pointer::WlPointer,
+                 _time: u32,
+                 _axis: wl_pointer::Axis)
+    {
+        self.axis_state = TouchPhase::Ended;
+    }
+
+    fn axis_discrete(&mut self,
+                     _evqh: &mut EventQueueHandle,
+                     _proxy: &wl_pointer::WlPointer,
+                     axis: wl_pointer::Axis,
+                     discrete: i32)
+    {
+        let (mut x, mut y) = self.axis_discrete_buffer.unwrap_or((0,0));
+        match axis {
+            wl_pointer::Axis::VerticalScroll => y += discrete,
+            wl_pointer::Axis::HorizontalScroll => x += discrete
+        }
+        self.axis_discrete_buffer = Some((x,y));
+                self.axis_state = match self.axis_state {
+            TouchPhase::Started | TouchPhase::Moved => TouchPhase::Moved,
+            _ => TouchPhase::Started
+        }
+    }
+}
+
+declare_handler!(InputHandler, wl_pointer::Handler, wl_pointer::WlPointer);
+
+/*
+ * Keyboard Handling
+ */
+
+impl wl_keyboard::Handler for InputHandler {
+    // mostly pass-through
+    fn keymap(&mut self,
+              evqh: &mut EventQueueHandle,
+              proxy: &wl_keyboard::WlKeyboard,
+              format: wl_keyboard::KeymapFormat,
+              fd: ::std::os::unix::io::RawFd,
+              size: u32)
+    {
+        match self.kbd_handler {
+            KbdType::Mapped(ref mut h) => h.keymap(evqh, proxy, format, fd, size),
+            _ => ()
+        }
+    }
+
+    fn enter(&mut self,
+             evqh: &mut EventQueueHandle,
+             proxy: &wl_keyboard::WlKeyboard,
+             serial: u32,
+             surface: &wl_surface::WlSurface,
+             keys: Vec<u8>)
+    {
+        for window in &self.windows {
+            if window.equals(surface) {
+                self.callback.lock().unwrap().send_event(Event::Focused(true), make_wid(window));
+                match self.kbd_handler {
+                    KbdType::Mapped(ref mut h) => {
+                        h.handler().target = Some(make_wid(window));
+                        h.enter(evqh, proxy, serial, surface, keys);
+                    },
+                    KbdType::Plain(ref mut target) => {
+                        *target = Some(make_wid(window))
+                    }
+                }
+                break;
+            }
+        }
+    }
+
+    fn leave(&mut self,
+             evqh: &mut EventQueueHandle,
+             proxy: &wl_keyboard::WlKeyboard,
+             serial: u32,
+             surface: &wl_surface::WlSurface)
+    {
+        for window in &self.windows {
+            if window.equals(surface) {
+                self.callback.lock().unwrap().send_event(Event::Focused(false), make_wid(window));
+                match self.kbd_handler {
+                    KbdType::Mapped(ref mut h) => {
+                        h.handler().target = None;
+                        h.leave(evqh, proxy, serial, surface);
+                    },
+                    KbdType::Plain(ref mut target) => {
+                        *target = None
+                    }
+                }
+                break;
+            }
+        }
+    }
+
+    fn key(&mut self,
+           evqh: &mut EventQueueHandle,
+           proxy: &wl_keyboard::WlKeyboard,
+           serial: u32,
+           time: u32,
+           key: u32,
+           state: wl_keyboard::KeyState)
+    {
+        match self.kbd_handler {
+            KbdType::Mapped(ref mut h) => h.key(evqh, proxy, serial, time, key, state),
+            KbdType::Plain(Some(wid)) => {
+                let state = match state {
+                    wl_keyboard::KeyState::Pressed => ElementState::Pressed,
+                    wl_keyboard::KeyState::Released => ElementState::Released,
+                };
+                // This is fallback impl if libxkbcommon was not available
+                // This case should probably never happen, as most wayland
+                // compositors _need_ libxkbcommon anyway...
+                //
+                // In this case, we don't have the modifiers state information
+                // anyway, as we need libxkbcommon to interpret it (it is
+                // supposed to be serialized by the compositor using libxkbcommon)
+                self.callback.lock().unwrap().send_event(
+                    Event::KeyboardInput(
+                        state,
+                        key as u8,
+                        None,
+                        ModifiersState::default()
+                    ),
+                    wid
+                );
+            },
+            KbdType::Plain(None) => ()
+        }
+    }
+
+    fn modifiers(&mut self,
+                 evqh: &mut EventQueueHandle,
+                 proxy: &wl_keyboard::WlKeyboard,
+                 serial: u32,
+                 mods_depressed: u32,
+                 mods_latched: u32,
+                 mods_locked: u32,
+                 group: u32)
+    {
+        match self.kbd_handler {
+            KbdType::Mapped(ref mut h) => h.modifiers(evqh, proxy, serial, mods_depressed,
+                                                      mods_latched, mods_locked, group),
+            _ => ()
+        }
+    }
+
+    fn repeat_info(&mut self,
+                   evqh: &mut EventQueueHandle,
+                   proxy: &wl_keyboard::WlKeyboard,
+                   rate: i32,
+                   delay: i32)
+    {
+        match self.kbd_handler {
+            KbdType::Mapped(ref mut h) => h.repeat_info(evqh, proxy, rate, delay),
+            _ => ()
+        }
+    }
+}
+
+declare_handler!(InputHandler, wl_keyboard::Handler, wl_keyboard::WlKeyboard);

src/platform/linux/wayland/keyboard.rs

@@ -0,0 +1,232 @@
+use std::sync::{Arc, Mutex};
+
+use {VirtualKeyCode, ElementState, WindowEvent as Event};
+
+use events::ModifiersState;
+
+use super::{wayland_kbd, EventsLoopSink, WindowId};
+use wayland_client::EventQueueHandle;
+use wayland_client::protocol::wl_keyboard;
+
+pub struct KbdHandler {
+    sink: Arc<Mutex<EventsLoopSink>>,
+    pub target: Option<WindowId>
+}
+
+impl KbdHandler {
+    pub fn new(sink: Arc<Mutex<EventsLoopSink>>) -> KbdHandler {
+        KbdHandler { sink: sink, target: None }
+    }
+}
+
+impl wayland_kbd::Handler for KbdHandler {
+    fn key(&mut self,
+           _evqh: &mut EventQueueHandle,
+           _proxy: &wl_keyboard::WlKeyboard,
+           _serial: u32,
+           _time: u32,
+           mods: &wayland_kbd::ModifiersState,
+           rawkey: u32,
+           keysym: u32,
+           state: wl_keyboard::KeyState,
+           utf8: Option<String>)
+    {
+        if let Some(wid) = self.target {
+            let state = match state {
+                wl_keyboard::KeyState::Pressed => ElementState::Pressed,
+                wl_keyboard::KeyState::Released => ElementState::Released,
+            };
+            let vkcode = key_to_vkey(rawkey, keysym);
+            let mut guard = self.sink.lock().unwrap();
+            guard.send_event(
+                Event::KeyboardInput(
+                    state,
+                    rawkey as u8,
+                    vkcode,
+                    ModifiersState {
+                        shift: mods.shift,
+                        ctrl: mods.ctrl,
+                        alt: mods.alt,
+                        logo: mods.logo
+                    }
+                ),
+                wid
+            );
+            // send char event only on key press, not release
+            if let ElementState::Released = state { return }
+            if let Some(txt) = utf8 {
+                for chr in txt.chars() {
+                    guard.send_event(Event::ReceivedCharacter(chr), wid);
+                }
+            }
+        }
+    }
+}
+
+fn key_to_vkey(rawkey: u32, keysym: u32) -> Option<VirtualKeyCode> {
+    match rawkey {
+         1 => Some(VirtualKeyCode::Escape),
+         2 => Some(VirtualKeyCode::Key1),
+         3 => Some(VirtualKeyCode::Key2),
+         4 => Some(VirtualKeyCode::Key3),
+         5 => Some(VirtualKeyCode::Key4),
+         6 => Some(VirtualKeyCode::Key5),
+         7 => Some(VirtualKeyCode::Key6),
+         8 => Some(VirtualKeyCode::Key7),
+         9 => Some(VirtualKeyCode::Key8),
+        10 => Some(VirtualKeyCode::Key9),
+        11 => Some(VirtualKeyCode::Key0),
+        _  => keysym_to_vkey(keysym)
+    }
+}
+
+fn keysym_to_vkey(keysym: u32) -> Option<VirtualKeyCode> {
+    use super::wayland_kbd::keysyms;
+    match keysym {
+        // letters
+        keysyms::XKB_KEY_A | keysyms::XKB_KEY_a => Some(VirtualKeyCode::A),
+        keysyms::XKB_KEY_B | keysyms::XKB_KEY_b => Some(VirtualKeyCode::B),
+        keysyms::XKB_KEY_C | keysyms::XKB_KEY_c => Some(VirtualKeyCode::C),
+        keysyms::XKB_KEY_D | keysyms::XKB_KEY_d => Some(VirtualKeyCode::D),
+        keysyms::XKB_KEY_E | keysyms::XKB_KEY_e => Some(VirtualKeyCode::E),
+        keysyms::XKB_KEY_F | keysyms::XKB_KEY_f => Some(VirtualKeyCode::F),
+        keysyms::XKB_KEY_G | keysyms::XKB_KEY_g => Some(VirtualKeyCode::G),
+        keysyms::XKB_KEY_H | keysyms::XKB_KEY_h => Some(VirtualKeyCode::H),
+        keysyms::XKB_KEY_I | keysyms::XKB_KEY_i => Some(VirtualKeyCode::I),
+        keysyms::XKB_KEY_J | keysyms::XKB_KEY_j => Some(VirtualKeyCode::J),
+        keysyms::XKB_KEY_K | keysyms::XKB_KEY_k => Some(VirtualKeyCode::K),
+        keysyms::XKB_KEY_L | keysyms::XKB_KEY_l => Some(VirtualKeyCode::L),
+        keysyms::XKB_KEY_M | keysyms::XKB_KEY_m => Some(VirtualKeyCode::M),
+        keysyms::XKB_KEY_N | keysyms::XKB_KEY_n => Some(VirtualKeyCode::N),
+        keysyms::XKB_KEY_O | keysyms::XKB_KEY_o => Some(VirtualKeyCode::O),
+        keysyms::XKB_KEY_P | keysyms::XKB_KEY_p => Some(VirtualKeyCode::P),
+        keysyms::XKB_KEY_Q | keysyms::XKB_KEY_q => Some(VirtualKeyCode::Q),
+        keysyms::XKB_KEY_R | keysyms::XKB_KEY_r => Some(VirtualKeyCode::R),
+        keysyms::XKB_KEY_S | keysyms::XKB_KEY_s => Some(VirtualKeyCode::S),
+        keysyms::XKB_KEY_T | keysyms::XKB_KEY_t => Some(VirtualKeyCode::T),
+        keysyms::XKB_KEY_U | keysyms::XKB_KEY_u => Some(VirtualKeyCode::U),
+        keysyms::XKB_KEY_V | keysyms::XKB_KEY_v => Some(VirtualKeyCode::V),
+        keysyms::XKB_KEY_W | keysyms::XKB_KEY_w => Some(VirtualKeyCode::W),
+        keysyms::XKB_KEY_X | keysyms::XKB_KEY_x => Some(VirtualKeyCode::X),
+        keysyms::XKB_KEY_Y | keysyms::XKB_KEY_y => Some(VirtualKeyCode::Y),
+        keysyms::XKB_KEY_Z | keysyms::XKB_KEY_z => Some(VirtualKeyCode::Z),
+        // F--
+        keysyms::XKB_KEY_F1  => Some(VirtualKeyCode::F1),
+        keysyms::XKB_KEY_F2  => Some(VirtualKeyCode::F2),
+        keysyms::XKB_KEY_F3  => Some(VirtualKeyCode::F3),
+        keysyms::XKB_KEY_F4  => Some(VirtualKeyCode::F4),
+        keysyms::XKB_KEY_F5  => Some(VirtualKeyCode::F5),
+        keysyms::XKB_KEY_F6  => Some(VirtualKeyCode::F6),
+        keysyms::XKB_KEY_F7  => Some(VirtualKeyCode::F7),
+        keysyms::XKB_KEY_F8  => Some(VirtualKeyCode::F8),
+        keysyms::XKB_KEY_F9  => Some(VirtualKeyCode::F9),
+        keysyms::XKB_KEY_F10 => Some(VirtualKeyCode::F10),
+        keysyms::XKB_KEY_F11 => Some(VirtualKeyCode::F11),
+        keysyms::XKB_KEY_F12 => Some(VirtualKeyCode::F12),
+        keysyms::XKB_KEY_F13 => Some(VirtualKeyCode::F13),
+        keysyms::XKB_KEY_F14 => Some(VirtualKeyCode::F14),
+        keysyms::XKB_KEY_F15 => Some(VirtualKeyCode::F15),
+        // flow control
+        keysyms::XKB_KEY_Print => Some(VirtualKeyCode::Snapshot),
+        keysyms::XKB_KEY_Scroll_Lock => Some(VirtualKeyCode::Scroll),
+        keysyms::XKB_KEY_Pause => Some(VirtualKeyCode::Pause),
+        keysyms::XKB_KEY_Insert => Some(VirtualKeyCode::Insert),
+        keysyms::XKB_KEY_Home => Some(VirtualKeyCode::Home),
+        keysyms::XKB_KEY_Delete => Some(VirtualKeyCode::Delete),
+        keysyms::XKB_KEY_End => Some(VirtualKeyCode::End),
+        keysyms::XKB_KEY_Page_Down => Some(VirtualKeyCode::PageDown),
+        keysyms::XKB_KEY_Page_Up => Some(VirtualKeyCode::PageUp),
+        // arrows
+        keysyms::XKB_KEY_Left => Some(VirtualKeyCode::Left),
+        keysyms::XKB_KEY_Up => Some(VirtualKeyCode::Up),
+        keysyms::XKB_KEY_Right => Some(VirtualKeyCode::Right),
+        keysyms::XKB_KEY_Down => Some(VirtualKeyCode::Down),
+        //
+        keysyms::XKB_KEY_BackSpace => Some(VirtualKeyCode::Back),
+        keysyms::XKB_KEY_Return => Some(VirtualKeyCode::Return),
+        keysyms::XKB_KEY_space => Some(VirtualKeyCode::Space),
+        // keypad
+        keysyms::XKB_KEY_Num_Lock => Some(VirtualKeyCode::Numlock),
+        keysyms::XKB_KEY_KP_0 => Some(VirtualKeyCode::Numpad0),
+        keysyms::XKB_KEY_KP_1 => Some(VirtualKeyCode::Numpad1),
+        keysyms::XKB_KEY_KP_2 => Some(VirtualKeyCode::Numpad2),
+        keysyms::XKB_KEY_KP_3 => Some(VirtualKeyCode::Numpad3),
+        keysyms::XKB_KEY_KP_4 => Some(VirtualKeyCode::Numpad4),
+        keysyms::XKB_KEY_KP_5 => Some(VirtualKeyCode::Numpad5),
+        keysyms::XKB_KEY_KP_6 => Some(VirtualKeyCode::Numpad6),
+        keysyms::XKB_KEY_KP_7 => Some(VirtualKeyCode::Numpad7),
+        keysyms::XKB_KEY_KP_8 => Some(VirtualKeyCode::Numpad8),
+        keysyms::XKB_KEY_KP_9 => Some(VirtualKeyCode::Numpad9),
+        // misc
+        // => Some(VirtualKeyCode::AbntC1),
+        // => Some(VirtualKeyCode::AbntC2),
+        keysyms::XKB_KEY_plus => Some(VirtualKeyCode::Add),
+        keysyms::XKB_KEY_apostrophe => Some(VirtualKeyCode::Apostrophe),
+        // => Some(VirtualKeyCode::Apps),
+        // => Some(VirtualKeyCode::At),
+        // => Some(VirtualKeyCode::Ax),
+        keysyms::XKB_KEY_backslash => Some(VirtualKeyCode::Backslash),
+        // => Some(VirtualKeyCode::Calculator),
+        // => Some(VirtualKeyCode::Capital),
+        keysyms::XKB_KEY_colon => Some(VirtualKeyCode::Colon),
+        keysyms::XKB_KEY_comma => Some(VirtualKeyCode::Comma),
+        // => Some(VirtualKeyCode::Convert),
+        // => Some(VirtualKeyCode::Decimal),
+        // => Some(VirtualKeyCode::Divide),
+        keysyms::XKB_KEY_equal => Some(VirtualKeyCode::Equals),
+        // => Some(VirtualKeyCode::Grave),
+        // => Some(VirtualKeyCode::Kana),
+        // => Some(VirtualKeyCode::Kanji),
+        keysyms::XKB_KEY_Alt_L => Some(VirtualKeyCode::LAlt),
+        // => Some(VirtualKeyCode::LBracket),
+        keysyms::XKB_KEY_Control_L => Some(VirtualKeyCode::LControl),
+        // => Some(VirtualKeyCode::LMenu),
+        keysyms::XKB_KEY_Shift_L => Some(VirtualKeyCode::LShift),
+        // => Some(VirtualKeyCode::LWin),
+        // => Some(VirtualKeyCode::Mail),
+        // => Some(VirtualKeyCode::MediaSelect),
+        // => Some(VirtualKeyCode::MediaStop),
+        keysyms::XKB_KEY_minus => Some(VirtualKeyCode::Minus),
+        keysyms::XKB_KEY_asterisk => Some(VirtualKeyCode::Multiply),
+        // => Some(VirtualKeyCode::Mute),
+        // => Some(VirtualKeyCode::MyComputer),
+        // => Some(VirtualKeyCode::NextTrack),
+        // => Some(VirtualKeyCode::NoConvert),
+        keysyms::XKB_KEY_KP_Separator => Some(VirtualKeyCode::NumpadComma),
+        keysyms::XKB_KEY_KP_Enter => Some(VirtualKeyCode::NumpadEnter),
+        keysyms::XKB_KEY_KP_Equal => Some(VirtualKeyCode::NumpadEquals),
+        // => Some(VirtualKeyCode::OEM102),
+        // => Some(VirtualKeyCode::Period),
+        // => Some(VirtualKeyCode::Playpause),
+        // => Some(VirtualKeyCode::Power),
+        // => Some(VirtualKeyCode::Prevtrack),
+        keysyms::XKB_KEY_Alt_R => Some(VirtualKeyCode::RAlt),
+        // => Some(VirtualKeyCode::RBracket),
+        keysyms::XKB_KEY_Control_R => Some(VirtualKeyCode::RControl),
+        // => Some(VirtualKeyCode::RMenu),
+        keysyms::XKB_KEY_Shift_R => Some(VirtualKeyCode::RShift),
+        // => Some(VirtualKeyCode::RWin),
+        keysyms::XKB_KEY_semicolon => Some(VirtualKeyCode::Semicolon),
+        keysyms::XKB_KEY_slash => Some(VirtualKeyCode::Slash),
+        // => Some(VirtualKeyCode::Sleep),
+        // => Some(VirtualKeyCode::Stop),
+        // => Some(VirtualKeyCode::Subtract),
+        // => Some(VirtualKeyCode::Sysrq),
+        keysyms::XKB_KEY_Tab => Some(VirtualKeyCode::Tab),
+        // => Some(VirtualKeyCode::Underline),
+        // => Some(VirtualKeyCode::Unlabeled),
+        keysyms::XKB_KEY_XF86AudioLowerVolume => Some(VirtualKeyCode::VolumeDown),
+        keysyms::XKB_KEY_XF86AudioRaiseVolume => Some(VirtualKeyCode::VolumeUp),
+        // => Some(VirtualKeyCode::Wake),
+        // => Some(VirtualKeyCode::Webback),
+        // => Some(VirtualKeyCode::WebFavorites),
+        // => Some(VirtualKeyCode::WebForward),
+        // => Some(VirtualKeyCode::WebHome),
+        // => Some(VirtualKeyCode::WebRefresh),
+        // => Some(VirtualKeyCode::WebSearch),
+        // => Some(VirtualKeyCode::WebStop),
+        // => Some(VirtualKeyCode::Yen),
+        // fallback
+        _ => None
+    }
+}

src/platform/linux/wayland/mod.rs

@@ -0,0 +1,17 @@
+#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))]
+
+pub use self::window::{Window, WindowId};
+pub use self::event_loop::EventsLoop;
+pub use self::context::{WaylandContext, MonitorId, get_available_monitors,
+                        get_primary_monitor};
+
+use self::window::{make_wid, DecoratedHandler};
+use self::event_loop::EventsLoopSink;
+
+extern crate wayland_kbd;
+extern crate wayland_window;
+
+mod context;
+mod event_loop;
+mod keyboard;
+mod window;

src/platform/linux/wayland/window.rs

@@ -0,0 +1,205 @@
+use std::sync::{Arc, Mutex};
+use std::sync::atomic::AtomicBool;
+
+use wayland_client::{EventQueue, EventQueueHandle, Proxy};
+use wayland_client::protocol::{wl_display,wl_surface,wl_shell_surface};
+
+use {CreationError, MouseCursor, CursorState, WindowAttributes};
+use platform::MonitorId as PlatformMonitorId;
+
+use super::{WaylandContext, EventsLoop};
+use super::wayland_window;
+use super::wayland_window::DecoratedSurface;
+
+pub struct Window {
+    // the global wayland context
+    ctxt: Arc<WaylandContext>,
+    // the EventQueue of our EventsLoop
+    evq: Arc<Mutex<EventQueue>>,
+    // signal to advertize the EventsLoop when we are destroyed
+    cleanup_signal: Arc<AtomicBool>,
+    // our wayland surface
+    surface: Arc<wl_surface::WlSurface>,
+    // our current inner dimensions
+    size: Mutex<(u32, u32)>,
+    // the id of our DecoratedHandler in the EventQueue
+    decorated_id: usize
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct WindowId(usize);
+
+#[inline]
+pub fn make_wid(s: &wl_surface::WlSurface) -> WindowId {
+    WindowId(s.ptr() as usize)
+}
+
+impl Window {
+    pub fn new(evlp: &EventsLoop, ctxt: Arc<WaylandContext>, attributes: &WindowAttributes)  -> Result<Window, CreationError>
+    {
+        let (width, height) = attributes.dimensions.unwrap_or((800,600));
+
+        let (surface, decorated) = ctxt.create_window::<DecoratedHandler>();
+
+        // init DecoratedSurface
+        let (evq, cleanup_signal) = evlp.get_window_init();
+        let decorated_id = {
+            let mut evq_guard = evq.lock().unwrap();
+            let decorated_id = evq_guard.add_handler_with_init(decorated);
+            {
+                // initialize the DecoratedHandler
+                let mut state = evq_guard.state();
+                let decorated = state.get_mut_handler::<DecoratedSurface<DecoratedHandler>>(decorated_id);
+                *(decorated.handler()) = Some(DecoratedHandler::new());
+
+                // set fullscreen if necessary
+                if let Some(PlatformMonitorId::Wayland(ref monitor_id)) = attributes.monitor {
+                    ctxt.with_output(monitor_id.clone(), |output| {
+                        decorated.set_fullscreen(
+                            wl_shell_surface::FullscreenMethod::Default,
+                            0,
+                            Some(output)
+                        )
+                    });
+                } else if attributes.decorations {
+                    decorated.set_decorate(true);
+                }
+                // Finally, set the decorations size
+                decorated.resize(width as i32, height as i32);
+            }
+            decorated_id
+        };
+        let me = Window {
+            ctxt: ctxt,
+            evq: evq,
+            cleanup_signal: cleanup_signal,
+            surface: surface,
+            size: Mutex::new((width, height)),
+            decorated_id: decorated_id
+        };
+
+        // register ourselves to the EventsLoop
+        evlp.register_window(me.decorated_id, me.surface.clone());
+
+        Ok(me)
+    }
+
+    #[inline]
+    pub fn id(&self) -> WindowId {
+        make_wid(&self.surface)
+    }
+
+    pub fn set_title(&self, title: &str) {
+        let mut guard = self.evq.lock().unwrap();
+        let mut state = guard.state();
+        let decorated = state.get_mut_handler::<DecoratedSurface<DecoratedHandler>>(self.decorated_id);
+        decorated.set_title(title.into())
+    }
+
+    #[inline]
+    pub fn show(&self) {
+        // TODO
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+        // TODO
+    }
+
+    #[inline]
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        // Not possible with wayland
+        None
+    }
+
+    #[inline]
+    pub fn set_position(&self, _x: i32, _y: i32) {
+        // Not possible with wayland
+    }
+
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        Some(self.size.lock().unwrap().clone())
+    }
+
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        let (w, h) = self.size.lock().unwrap().clone();
+        let (w, h) = super::wayland_window::add_borders(w as i32, h as i32);
+        Some((w as u32, h as u32))
+    }
+
+    #[inline]
+    // NOTE: This will only resize the borders, the contents must be updated by the user
+    pub fn set_inner_size(&self, x: u32, y: u32) {
+        let mut guard = self.evq.lock().unwrap();
+        let mut state = guard.state();
+        let mut decorated = state.get_mut_handler::<DecoratedSurface<DecoratedHandler>>(self.decorated_id);
+        decorated.resize(x as i32, y as i32);
+    }
+
+    #[inline]
+    pub fn set_cursor(&self, _cursor: MouseCursor) {
+        // TODO
+    }
+
+    #[inline]
+    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+        use CursorState::{Grab, Normal, Hide};
+        // TODO : not yet possible on wayland to grab cursor
+        match state {
+            Grab => Err("Cursor cannot be grabbed on wayland yet.".to_string()),
+            Hide => Err("Cursor cannot be hidden on wayland yet.".to_string()),
+            Normal => Ok(())
+        }
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+        // TODO
+        1.0
+    }
+
+    #[inline]
+    pub fn set_cursor_position(&self, _x: i32, _y: i32) -> Result<(), ()> {
+        // TODO: not yet possible on wayland
+        Err(())
+    }
+    
+    pub fn get_display(&self) -> &wl_display::WlDisplay {
+        &self.ctxt.display
+    }
+    
+    pub fn get_surface(&self) -> &wl_surface::WlSurface {
+        &self.surface
+    }
+}
+
+impl Drop for Window {
+    fn drop(&mut self) {
+        self.surface.destroy();
+        self.cleanup_signal.store(true, ::std::sync::atomic::Ordering::Relaxed);
+    }
+}
+
+pub struct DecoratedHandler {
+    newsize: Option<(u32, u32)>
+}
+
+impl DecoratedHandler {
+    fn new() -> DecoratedHandler { DecoratedHandler { newsize: None }}
+
+    pub fn take_newsize(&mut self) -> Option<(u32, u32)> {
+        self.newsize.take()
+    }
+}
+
+impl wayland_window::Handler for DecoratedHandler {
+    fn configure(&mut self,
+                 _: &mut EventQueueHandle,
+                 _: wl_shell_surface::Resize,
+                 width: i32, height: i32)
+    {
+        use std::cmp::max;
+        self.newsize = Some((max(width,1) as u32, max(height,1) as u32));
+    }
+}

src/platform/linux/x11/ffi.rs

@@ -0,0 +1,8 @@
+pub use x11_dl::keysym::*;
+pub use x11_dl::xcursor::*;
+pub use x11_dl::xf86vmode::*;
+pub use x11_dl::xlib::*;
+pub use x11_dl::xinput::*;
+pub use x11_dl::xinput2::*;
+pub use x11_dl::xlib_xcb::*;
+pub use x11_dl::error::OpenError;

src/platform/linux/x11/input.rs

@@ -0,0 +1,391 @@
+use std::sync::Arc;
+
+use libc;
+use std::{mem, ptr};
+use std::ffi::CString;
+use std::slice::from_raw_parts;
+
+use WindowAttributes;
+
+use events::WindowEvent as Event;
+use events::ModifiersState;
+
+use super::{events, ffi};
+use super::XConnection;
+
+#[derive(Debug)]
+enum AxisType {
+    HorizontalScroll,
+    VerticalScroll
+}
+
+#[derive(Debug)]
+struct Axis {
+    id: i32,
+    device_id: i32,
+    axis_number: i32,
+    axis_type: AxisType,
+    scroll_increment: f64,
+}
+
+#[derive(Debug)]
+struct AxisValue {
+    device_id: i32,
+    axis_number: i32,
+    value: f64
+}
+
+struct InputState {
+    /// Last-seen cursor position within a window in (x, y)
+    /// coordinates
+    cursor_pos: (f64, f64),
+    /// Last-seen positions of axes, used to report delta
+    /// movements when a new absolute axis value is received
+    axis_values: Vec<AxisValue>
+}
+
+pub struct XInputEventHandler {
+    display: Arc<XConnection>,
+    window: ffi::Window,
+    ic: ffi::XIC,
+    axis_list: Vec<Axis>,
+    current_state: InputState,
+    multitouch: bool,
+}
+
+impl XInputEventHandler {
+    pub fn new(display: &Arc<XConnection>, window: ffi::Window, ic: ffi::XIC,
+               window_attrs: &WindowAttributes) -> XInputEventHandler {
+        // query XInput support
+        let mut opcode: libc::c_int = 0;
+        let mut event: libc::c_int = 0;
+        let mut error: libc::c_int = 0;
+        let xinput_str = CString::new("XInputExtension").unwrap();
+
+        unsafe {
+            if (display.xlib.XQueryExtension)(display.display, xinput_str.as_ptr(), &mut opcode, &mut event, &mut error) == ffi::False {
+                panic!("XInput not available")
+            }
+        }
+
+        let mut xinput_major_ver = ffi::XI_2_Major;
+        let mut xinput_minor_ver = ffi::XI_2_Minor;
+
+        unsafe {
+            if (display.xinput2.XIQueryVersion)(display.display, &mut xinput_major_ver, &mut xinput_minor_ver) != ffi::Success as libc::c_int {
+                panic!("Unable to determine XInput version");
+            }
+        }
+
+        // specify the XInput events we want to receive.
+        // Button clicks and mouse events are handled via XInput
+        // events. Key presses are still handled via plain core
+        // X11 events.
+        let mut mask: [libc::c_uchar; 3] = [0; 3];
+        let mut input_event_mask = ffi::XIEventMask {
+            deviceid: ffi::XIAllMasterDevices,
+            mask_len: mask.len() as i32,
+            mask: mask.as_mut_ptr()
+        };
+        let events = &[
+            ffi::XI_ButtonPress,
+            ffi::XI_ButtonRelease,
+            ffi::XI_Motion,
+            ffi::XI_Enter,
+            ffi::XI_Leave,
+            ffi::XI_FocusIn,
+            ffi::XI_FocusOut,
+            ffi::XI_TouchBegin,
+            ffi::XI_TouchUpdate,
+            ffi::XI_TouchEnd,
+        ];
+        for event in events {
+            ffi::XISetMask(&mut mask, *event);
+        }
+
+        unsafe {
+            match (display.xinput2.XISelectEvents)(display.display, window, &mut input_event_mask, 1) {
+                status if status as u8 == ffi::Success => (),
+                err => panic!("Failed to select events {:?}", err)
+            }
+        }
+
+        XInputEventHandler {
+            display: display.clone(),
+            window: window,
+            ic: ic,
+            axis_list: read_input_axis_info(display),
+            current_state: InputState {
+                cursor_pos: (0.0, 0.0),
+                axis_values: Vec::new()
+            },
+            multitouch: window_attrs.multitouch,
+        }
+    }
+
+    pub fn translate_key_event(&self, event: &mut ffi::XKeyEvent) -> Vec<Event> {
+        use events::WindowEvent::{KeyboardInput, ReceivedCharacter};
+        use events::ElementState::{Pressed, Released};
+
+        let mut translated_events = Vec::new();
+
+        let state;
+        if event.type_ == ffi::KeyPress {
+            let raw_ev: *mut ffi::XKeyEvent = event;
+            unsafe { (self.display.xlib.XFilterEvent)(mem::transmute(raw_ev), self.window) };
+            state = Pressed;
+        } else {
+            state = Released;
+        }
+
+        let mut kp_keysym = 0;
+
+        let mut ev_mods = ModifiersState::default();
+
+        let written = unsafe {
+            use std::str;
+
+            let mut buffer: [u8; 16] = [mem::uninitialized(); 16];
+            let raw_ev: *mut ffi::XKeyEvent = event;
+            let count = (self.display.xlib.Xutf8LookupString)(self.ic, mem::transmute(raw_ev),
+            mem::transmute(buffer.as_mut_ptr()),
+            buffer.len() as libc::c_int, &mut kp_keysym, ptr::null_mut());
+
+            {
+                // Translate x event state to mods
+                let state = event.state;
+                if (state & ffi::Mod1Mask) != 0 {
+                    ev_mods.alt = true;
+                }
+
+                if (state & ffi::ShiftMask) != 0 {
+                    ev_mods.shift = true;
+                }
+
+                if (state & ffi::ControlMask) != 0 {
+                    ev_mods.ctrl = true;
+                }
+
+                if (state & ffi::Mod4Mask) != 0 {
+                    ev_mods.logo = true;
+                }
+            }
+
+            str::from_utf8(&buffer[..count as usize]).unwrap_or("").to_string()
+        };
+
+        for chr in written.chars() {
+            translated_events.push(ReceivedCharacter(chr));
+        }
+
+        let mut keysym = unsafe {
+            (self.display.xlib.XKeycodeToKeysym)(self.display.display, event.keycode as ffi::KeyCode, 0)
+        };
+
+        if (ffi::XK_KP_Space as libc::c_ulong <= keysym) && (keysym <= ffi::XK_KP_9 as libc::c_ulong) {
+            keysym = kp_keysym
+        };
+
+        let vkey = events::keycode_to_element(keysym as libc::c_uint);
+
+        translated_events.push(KeyboardInput(state, event.keycode as u8, vkey, ev_mods));
+        translated_events
+    }
+
+    pub fn translate_event(&mut self, cookie: &ffi::XGenericEventCookie) -> Option<Event> {
+        use events::WindowEvent::{Focused, MouseEntered, MouseInput, MouseLeft, MouseMoved, MouseWheel};
+        use events::ElementState::{Pressed, Released};
+        use events::MouseButton::{Left, Right, Middle};
+        use events::MouseScrollDelta::LineDelta;
+        use events::{Touch, TouchPhase};
+
+        match cookie.evtype {
+            ffi::XI_ButtonPress | ffi::XI_ButtonRelease => {
+                let event_data: &ffi::XIDeviceEvent = unsafe{mem::transmute(cookie.data)};
+                if self.multitouch && (event_data.flags & ffi::XIPointerEmulated) != 0 {
+                    // Deliver multi-touch events instead of emulated mouse events.
+                    return None
+                }
+                let state = if cookie.evtype == ffi::XI_ButtonPress {
+                    Pressed
+                } else {
+                    Released
+                };
+                match event_data.detail as u32 {
+                    ffi::Button1 => Some(MouseInput(state, Left)),
+                    ffi::Button2 => Some(MouseInput(state, Middle)),
+                    ffi::Button3 => Some(MouseInput(state, Right)),
+                    ffi::Button4 | ffi::Button5 => {
+                        if event_data.flags & ffi::XIPointerEmulated == 0 {
+                            // scroll event from a traditional wheel with
+                            // distinct 'clicks'
+                            let delta = if event_data.detail as u32 == ffi::Button4 {
+                                1.0
+                            } else {
+                                -1.0
+                            };
+                            Some(MouseWheel(LineDelta(0.0, delta), TouchPhase::Moved))
+                        } else {
+                            // emulated button event from a touch/smooth-scroll
+                            // event. Ignore these events and handle scrolling
+                            // via XI_Motion event handler instead
+                            None
+                        }
+                    }
+                    _ => None
+                }
+            },
+            ffi::XI_Motion => {
+                let event_data: &ffi::XIDeviceEvent = unsafe{mem::transmute(cookie.data)};
+                if self.multitouch && (event_data.flags & ffi::XIPointerEmulated) != 0 {
+                    // Deliver multi-touch events instead of emulated mouse events.
+                    return None
+                }
+                let axis_state = event_data.valuators;
+                let mask = unsafe{ from_raw_parts(axis_state.mask, axis_state.mask_len as usize) };
+                let mut axis_count = 0;
+
+                let mut scroll_delta = (0.0, 0.0);
+                for axis_id in 0..axis_state.mask_len {
+                    if ffi::XIMaskIsSet(&mask, axis_id) {
+                        let axis_value = unsafe{*axis_state.values.offset(axis_count)};
+                        let delta = calc_scroll_deltas(event_data, axis_id, axis_value, &self.axis_list,
+                                                       &mut self.current_state.axis_values);
+                        scroll_delta.0 += delta.0;
+                        scroll_delta.1 += delta.1;
+                        axis_count += 1;
+                    }
+                }
+
+                if scroll_delta.0.abs() > 0.0 || scroll_delta.1.abs() > 0.0 {
+                    Some(MouseWheel(LineDelta(scroll_delta.0 as f32, scroll_delta.1 as f32),
+                                    TouchPhase::Moved))
+                } else {
+                    let new_cursor_pos = (event_data.event_x, event_data.event_y);
+                    if new_cursor_pos != self.current_state.cursor_pos {
+                        self.current_state.cursor_pos = new_cursor_pos;
+                        Some(MouseMoved(new_cursor_pos.0 as i32, new_cursor_pos.1 as i32))
+                    } else {
+                        None
+                    }
+                }
+            },
+            ffi::XI_Enter => {
+                // axis movements whilst the cursor is outside the window
+                // will alter the absolute value of the axes. We only want to
+                // report changes in the axis value whilst the cursor is above
+                // our window however, so clear the previous axis state whenever
+                // the cursor re-enters the window
+                self.current_state.axis_values.clear();
+                Some(MouseEntered)
+            },
+            ffi::XI_Leave => Some(MouseLeft),
+            ffi::XI_FocusIn => Some(Focused(true)),
+            ffi::XI_FocusOut => Some(Focused(false)),
+            ffi::XI_TouchBegin | ffi::XI_TouchUpdate | ffi::XI_TouchEnd => {
+                if !self.multitouch {
+                    return None
+                }
+                let event_data: &ffi::XIDeviceEvent = unsafe{mem::transmute(cookie.data)};
+                let phase = match cookie.evtype {
+                    ffi::XI_TouchBegin => TouchPhase::Started,
+                    ffi::XI_TouchUpdate => TouchPhase::Moved,
+                    ffi::XI_TouchEnd => TouchPhase::Ended,
+                    _ => unreachable!()
+                };
+                Some(Event::Touch(Touch {
+                    phase: phase,
+                    location: (event_data.event_x, event_data.event_y),
+                    id: event_data.detail as u64,
+                }))
+            }
+            _ => None
+        }
+    }
+}
+
+fn read_input_axis_info(display: &Arc<XConnection>) -> Vec<Axis> {
+    let mut axis_list = Vec::new();
+    let mut device_count = 0;
+
+    // Check all input devices for scroll axes.
+    let devices = unsafe{
+        (display.xinput2.XIQueryDevice)(display.display, ffi::XIAllDevices, &mut device_count)
+    };
+    for i in 0..device_count {
+        let device = unsafe { *(devices.offset(i as isize)) };
+        for k in 0..device.num_classes {
+            let class = unsafe { *(device.classes.offset(k as isize)) };
+            match unsafe { (*class)._type } {
+                // Note that scroll axis
+                // are reported both as 'XIScrollClass' and 'XIValuatorClass'
+                // axes. For the moment we only care about scrolling axes.
+                ffi::XIScrollClass => {
+                    let scroll_class: &ffi::XIScrollClassInfo = unsafe{mem::transmute(class)};
+                    axis_list.push(Axis{
+                        id: scroll_class.sourceid,
+                        device_id: device.deviceid,
+                        axis_number: scroll_class.number,
+                        axis_type: match scroll_class.scroll_type {
+                            ffi::XIScrollTypeHorizontal => AxisType::HorizontalScroll,
+                            ffi::XIScrollTypeVertical => AxisType::VerticalScroll,
+                            _ => { unreachable!() }
+                        },
+                        scroll_increment: scroll_class.increment,
+                    })
+                },
+                _ => {}
+            }
+        }
+    }
+
+    unsafe {
+        (display.xinput2.XIFreeDeviceInfo)(devices);
+    }
+
+    axis_list
+}
+
+/// Given an input motion event for an axis and the previous
+/// state of the axes, return the horizontal/vertical
+/// scroll deltas
+fn calc_scroll_deltas(event: &ffi::XIDeviceEvent,
+                     axis_id: i32,
+                     axis_value: f64,
+                     axis_list: &[Axis],
+                     prev_axis_values: &mut Vec<AxisValue>) -> (f64, f64) {
+    let prev_value_pos = prev_axis_values.iter().position(|prev_axis| {
+        prev_axis.device_id == event.sourceid &&
+            prev_axis.axis_number == axis_id
+    });
+    let delta = match prev_value_pos {
+        Some(idx) => prev_axis_values[idx].value - axis_value,
+        None => 0.0
+    };
+
+    let new_axis_value = AxisValue{
+        device_id: event.sourceid,
+        axis_number: axis_id,
+        value: axis_value
+    };
+
+    match prev_value_pos {
+        Some(idx) => prev_axis_values[idx] = new_axis_value,
+        None => prev_axis_values.push(new_axis_value)
+    }
+
+    let mut scroll_delta = (0.0, 0.0);
+
+    for axis in axis_list.iter() {
+        if axis.id == event.sourceid &&
+            axis.axis_number == axis_id {
+                match axis.axis_type {
+                    AxisType::HorizontalScroll => scroll_delta.0 = delta / axis.scroll_increment,
+                    AxisType::VerticalScroll => scroll_delta.1 = delta / axis.scroll_increment
+                }
+            }
+    }
+
+    scroll_delta
+}
+

src/platform/linux/x11/mod.rs

@@ -0,0 +1,124 @@
+#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))]
+
+pub use self::monitor::{MonitorId, get_available_monitors, get_primary_monitor};
+pub use self::window::{Window, XWindow, PollEventsIterator, WaitEventsIterator, WindowProxy};
+pub use self::xdisplay::{XConnection, XNotSupported, XError};
+
+pub mod ffi;
+
+use platform::PlatformSpecificWindowBuilderAttributes;
+use CreationError;
+
+use std::sync::Arc;
+
+mod events;
+mod input;
+mod monitor;
+mod window;
+mod xdisplay;
+
+// API TRANSITION
+//
+// We don't use the gen_api_transistion!() macro but rather do the expansion manually:
+//
+// As this module is nested into platform/linux, its code is not _exactly_ the same as
+// the one generated by the macro.
+
+pub struct EventsLoop {
+    windows: ::std::sync::Mutex<Vec<::std::sync::Arc<Window>>>,
+    interrupted: ::std::sync::atomic::AtomicBool,
+}
+
+impl EventsLoop {
+    pub fn new() -> EventsLoop {
+        EventsLoop {
+            windows: ::std::sync::Mutex::new(vec![]),
+            interrupted: ::std::sync::atomic::AtomicBool::new(false),
+        }
+    }
+
+    pub fn interrupt(&self) {
+        self.interrupted.store(true, ::std::sync::atomic::Ordering::Relaxed);
+    }
+
+    pub fn poll_events<F>(&self, mut callback: F)
+        where F: FnMut(::Event)
+    {
+        let windows = self.windows.lock().unwrap();
+        for window in windows.iter() {
+            for event in window.poll_events() {
+                callback(::Event::WindowEvent {
+                    window_id: ::WindowId(::platform::WindowId::X(WindowId(&**window as *const Window as usize))),
+                    event: event,
+                })
+            }
+        }
+    }
+
+    pub fn run_forever<F>(&self, mut callback: F)
+        where F: FnMut(::Event)
+    {
+        self.interrupted.store(false, ::std::sync::atomic::Ordering::Relaxed);
+
+        // Yeah that's a very bad implementation.
+        loop {
+            self.poll_events(|e| callback(e));
+            ::std::thread::sleep(::std::time::Duration::from_millis(5));
+            if self.interrupted.load(::std::sync::atomic::Ordering::Relaxed) {
+                break;
+            }
+        }
+    }
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct WindowId(usize);
+
+pub struct Window2 {
+    pub window: ::std::sync::Arc<Window>,
+    events_loop: ::std::sync::Weak<::platform::EventsLoop>,
+}
+
+impl ::std::ops::Deref for Window2 {
+    type Target = Window;
+    #[inline]
+    fn deref(&self) -> &Window {
+        &*self.window
+    }
+}
+
+impl Window2 {
+    pub fn new(events_loop: ::std::sync::Arc<::platform::EventsLoop>, display: &Arc<XConnection>,
+               window: &::WindowAttributes, pl_attribs: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window2, CreationError>
+    {
+        let win = ::std::sync::Arc::new(try!(Window::new(display, window, pl_attribs)));
+        if let ::platform::EventsLoop::X(ref ev) = *events_loop {
+            ev.windows.lock().unwrap().push(win.clone());
+        } else {
+            // It should not be possible to create an eventloop not matching the backend
+            // in use
+            unreachable!()
+        }
+        Ok(Window2 {
+            window: win,
+            events_loop: ::std::sync::Arc::downgrade(&events_loop),
+        })
+    }
+
+    #[inline]
+    pub fn id(&self) -> WindowId {
+        WindowId(&*self.window as *const Window as usize)
+    }
+}
+
+impl Drop for Window2 {
+    fn drop(&mut self) {
+        if let Some(ev) = self.events_loop.upgrade() {
+            if let ::platform::EventsLoop::X(ref ev) = *ev {
+                let mut windows = ev.windows.lock().unwrap();
+                windows.retain(|w| &**w as *const Window != &*self.window as *const _);
+            }
+        }
+    }
+}

src/platform/linux/x11/monitor.rs

@@ -0,0 +1,44 @@
+use std::collections::VecDeque;
+use std::sync::Arc;
+
+use super::XConnection;
+use native_monitor::NativeMonitorId;
+
+#[derive(Clone)]
+pub struct MonitorId(pub Arc<XConnection>, pub u32);
+
+pub fn get_available_monitors(x: &Arc<XConnection>) -> VecDeque<MonitorId> {
+    let nb_monitors = unsafe { (x.xlib.XScreenCount)(x.display) };
+    x.check_errors().expect("Failed to call XScreenCount");
+
+    let mut monitors = VecDeque::new();
+    monitors.extend((0 .. nb_monitors).map(|i| MonitorId(x.clone(), i as u32)));
+    monitors
+}
+
+#[inline]
+pub fn get_primary_monitor(x: &Arc<XConnection>) -> MonitorId {
+    let primary_monitor = unsafe { (x.xlib.XDefaultScreen)(x.display) };
+    x.check_errors().expect("Failed to call XDefaultScreen");
+    MonitorId(x.clone(), primary_monitor as u32)
+}
+
+impl MonitorId {
+    pub fn get_name(&self) -> Option<String> {
+        let MonitorId(_, screen_num) = *self;
+        Some(format!("Monitor #{}", screen_num))
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> NativeMonitorId {
+        NativeMonitorId::Numeric(self.1)
+    }
+
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        let screen = unsafe { (self.0.xlib.XScreenOfDisplay)(self.0.display, self.1 as i32) };
+        let width = unsafe { (self.0.xlib.XWidthOfScreen)(screen) };
+        let height = unsafe { (self.0.xlib.XHeightOfScreen)(screen) };
+        self.0.check_errors().expect("Failed to get monitor dimensions");
+        (width as u32, height as u32)
+    }
+}

src/platform/linux/x11/xdisplay.rs

@@ -1,45 +1,36 @@
-use std::{collections::HashMap, error::Error, fmt, os::raw::c_int, ptr};
+use std::ptr;
+use std::fmt;
+use std::error::Error;
+use std::sync::Mutex;
 
 use libc;
-use parking_lot::Mutex;
-
-use crate::window::CursorIcon;
 
 use super::ffi;
 
 /// A connection to an X server.
 pub struct XConnection {
     pub xlib: ffi::Xlib,
-    /// Exposes XRandR functions from version < 1.5
-    pub xrandr: ffi::Xrandr_2_2_0,
-    /// Exposes XRandR functions from version = 1.5
-    pub xrandr_1_5: Option<ffi::Xrandr>,
+    pub xf86vmode: ffi::Xf86vmode,
     pub xcursor: ffi::Xcursor,
     pub xinput2: ffi::XInput2,
     pub xlib_xcb: ffi::Xlib_xcb,
-    pub xrender: ffi::Xrender,
     pub display: *mut ffi::Display,
-    pub x11_fd: c_int,
     pub latest_error: Mutex<Option<XError>>,
-    pub cursor_cache: Mutex<HashMap<Option<CursorIcon>, ffi::Cursor>>,
 }
 
 unsafe impl Send for XConnection {}
 unsafe impl Sync for XConnection {}
 
-pub type XErrorHandler =
-    Option<unsafe extern "C" fn(*mut ffi::Display, *mut ffi::XErrorEvent) -> libc::c_int>;
+pub type XErrorHandler = Option<unsafe extern fn(*mut ffi::Display, *mut ffi::XErrorEvent) -> libc::c_int>;
 
 impl XConnection {
     pub fn new(error_handler: XErrorHandler) -> Result<XConnection, XNotSupported> {
         // opening the libraries
-        let xlib = ffi::Xlib::open()?;
-        let xcursor = ffi::Xcursor::open()?;
-        let xrandr = ffi::Xrandr_2_2_0::open()?;
-        let xrandr_1_5 = ffi::Xrandr::open().ok();
-        let xinput2 = ffi::XInput2::open()?;
-        let xlib_xcb = ffi::Xlib_xcb::open()?;
-        let xrender = ffi::Xrender::open()?;
+        let xlib = try!(ffi::Xlib::open());
+        let xcursor = try!(ffi::Xcursor::open());
+        let xf86vmode = try!(ffi::Xf86vmode::open());
+        let xinput2 = try!(ffi::XInput2::open());
+        let xlib_xcb = try!(ffi::Xlib_xcb::open());
 
         unsafe { (xlib.XInitThreads)() };
         unsafe { (xlib.XSetErrorHandler)(error_handler) };
@@ -53,28 +44,22 @@ impl XConnection {
             display
         };
 
-        // Get X11 socket file descriptor
-        let fd = unsafe { (xlib.XConnectionNumber)(display) };
-
         Ok(XConnection {
-            xlib,
-            xrandr,
-            xrandr_1_5,
-            xcursor,
-            xinput2,
-            xlib_xcb,
-            xrender,
-            display,
-            x11_fd: fd,
+            xlib: xlib,
+            xf86vmode: xf86vmode,
+            xcursor: xcursor,
+            xinput2: xinput2,
+            xlib_xcb: xlib_xcb,
+            display: display,
             latest_error: Mutex::new(None),
-            cursor_cache: Default::default(),
         })
     }
 
     /// Checks whether an error has been triggered by the previous function calls.
     #[inline]
     pub fn check_errors(&self) -> Result<(), XError> {
-        let error = self.latest_error.lock().take();
+        let error = self.latest_error.lock().unwrap().take();
+
         if let Some(error) = error {
             Err(error)
         } else {
@@ -85,13 +70,7 @@ impl XConnection {
     /// Ignores any previous error.
     #[inline]
     pub fn ignore_error(&self) {
-        *self.latest_error.lock() = None;
-    }
-}
-
-impl fmt::Debug for XConnection {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        self.display.fmt(f)
+        *self.latest_error.lock().unwrap() = None;
     }
 }
 
@@ -119,12 +98,9 @@ impl Error for XError {
 }
 
 impl fmt::Display for XError {
-    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
-        write!(
-            formatter,
-            "X error: {} (code: {}, request code: {}, minor code: {})",
-            self.description, self.error_code, self.request_code, self.minor_code
-        )
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+        write!(formatter, "X error: {} (code: {}, request code: {}, minor code: {})",
+               self.description, self.error_code, self.request_code, self.minor_code)
     }
 }
 
@@ -134,7 +110,7 @@ pub enum XNotSupported {
     /// Failed to load one or several shared libraries.
     LibraryOpenError(ffi::OpenError),
     /// Connecting to the X server with `XOpenDisplay` failed.
-    XOpenDisplayFailed, // TODO: add better message
+    XOpenDisplayFailed,     // TODO: add better message
 }
 
 impl From<ffi::OpenError> for XNotSupported {
@@ -154,16 +130,16 @@ impl Error for XNotSupported {
     }
 
     #[inline]
-    fn cause(&self) -> Option<&dyn Error> {
+    fn cause(&self) -> Option<&Error> {
         match *self {
             XNotSupported::LibraryOpenError(ref err) => Some(err),
-            _ => None,
+            _ => None
         }
     }
 }
 
 impl fmt::Display for XNotSupported {
-    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
         formatter.write_str(self.description())
     }
 }

src/platform/macos.rs

@@ -1,211 +0,0 @@
-#![cfg(target_os = "macos")]
-
-use std::os::raw::c_void;
-
-use crate::{
-    dpi::LogicalSize,
-    monitor::MonitorHandle,
-    window::{Window, WindowBuilder},
-};
-
-/// Corresponds to `NSRequestUserAttentionType`.
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum RequestUserAttentionType {
-    /// Corresponds to `NSCriticalRequest`.
-    ///
-    /// Dock icon will bounce until the application is focused.
-    Critical,
-
-    /// Corresponds to `NSInformationalRequest`.
-    ///
-    /// Dock icon will bounce once.
-    Informational,
-}
-
-impl Default for RequestUserAttentionType {
-    fn default() -> Self {
-        RequestUserAttentionType::Critical
-    }
-}
-
-/// Additional methods on `Window` that are specific to MacOS.
-pub trait WindowExtMacOS {
-    /// Returns a pointer to the cocoa `NSWindow` that is used by this window.
-    ///
-    /// The pointer will become invalid when the `Window` is destroyed.
-    fn ns_window(&self) -> *mut c_void;
-
-    /// Returns a pointer to the cocoa `NSView` that is used by this window.
-    ///
-    /// The pointer will become invalid when the `Window` is destroyed.
-    fn ns_view(&self) -> *mut c_void;
-
-    /// Request user attention, causing the application's dock icon to bounce.
-    /// Note that this has no effect if the application is already focused.
-    fn request_user_attention(&self, request_type: RequestUserAttentionType);
-
-    /// Returns whether or not the window is in simple fullscreen mode.
-    fn simple_fullscreen(&self) -> bool;
-
-    /// Toggles a fullscreen mode that doesn't require a new macOS space.
-    /// Returns a boolean indicating whether the transition was successful (this
-    /// won't work if the window was already in the native fullscreen).
-    ///
-    /// This is how fullscreen used to work on macOS in versions before Lion.
-    /// And allows the user to have a fullscreen window without using another
-    /// space or taking control over the entire monitor.
-    fn set_simple_fullscreen(&self, fullscreen: bool) -> bool;
-}
-
-impl WindowExtMacOS for Window {
-    #[inline]
-    fn ns_window(&self) -> *mut c_void {
-        self.window.ns_window()
-    }
-
-    #[inline]
-    fn ns_view(&self) -> *mut c_void {
-        self.window.ns_view()
-    }
-
-    #[inline]
-    fn request_user_attention(&self, request_type: RequestUserAttentionType) {
-        self.window.request_user_attention(request_type)
-    }
-
-    #[inline]
-    fn simple_fullscreen(&self) -> bool {
-        self.window.simple_fullscreen()
-    }
-
-    #[inline]
-    fn set_simple_fullscreen(&self, fullscreen: bool) -> bool {
-        self.window.set_simple_fullscreen(fullscreen)
-    }
-}
-
-/// Corresponds to `NSApplicationActivationPolicy`.
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum ActivationPolicy {
-    /// Corresponds to `NSApplicationActivationPolicyRegular`.
-    Regular,
-    /// Corresponds to `NSApplicationActivationPolicyAccessory`.
-    Accessory,
-    /// Corresponds to `NSApplicationActivationPolicyProhibited`.
-    Prohibited,
-}
-
-impl Default for ActivationPolicy {
-    fn default() -> Self {
-        ActivationPolicy::Regular
-    }
-}
-
-/// Additional methods on `WindowBuilder` that are specific to MacOS.
-///
-/// **Note:** Properties dealing with the titlebar will be overwritten by the `with_decorations` method
-/// on the base `WindowBuilder`:
-///
-///  - `with_titlebar_transparent`
-///  - `with_title_hidden`
-///  - `with_titlebar_hidden`
-///  - `with_titlebar_buttons_hidden`
-///  - `with_fullsize_content_view`
-pub trait WindowBuilderExtMacOS {
-    /// Sets the activation policy for the window being built.
-    fn with_activation_policy(self, activation_policy: ActivationPolicy) -> WindowBuilder;
-    /// Enables click-and-drag behavior for the entire window, not just the titlebar.
-    fn with_movable_by_window_background(self, movable_by_window_background: bool)
-        -> WindowBuilder;
-    /// Makes the titlebar transparent and allows the content to appear behind it.
-    fn with_titlebar_transparent(self, titlebar_transparent: bool) -> WindowBuilder;
-    /// Hides the window title.
-    fn with_title_hidden(self, title_hidden: bool) -> WindowBuilder;
-    /// Hides the window titlebar.
-    fn with_titlebar_hidden(self, titlebar_hidden: bool) -> WindowBuilder;
-    /// Hides the window titlebar buttons.
-    fn with_titlebar_buttons_hidden(self, titlebar_buttons_hidden: bool) -> WindowBuilder;
-    /// Makes the window content appear behind the titlebar.
-    fn with_fullsize_content_view(self, fullsize_content_view: bool) -> WindowBuilder;
-    /// Build window with `resizeIncrements` property. Values must not be 0.
-    fn with_resize_increments(self, increments: LogicalSize) -> WindowBuilder;
-    fn with_disallow_hidpi(self, disallow_hidpi: bool) -> WindowBuilder;
-}
-
-impl WindowBuilderExtMacOS for WindowBuilder {
-    #[inline]
-    fn with_activation_policy(mut self, activation_policy: ActivationPolicy) -> WindowBuilder {
-        self.platform_specific.activation_policy = activation_policy;
-        self
-    }
-
-    #[inline]
-    fn with_movable_by_window_background(
-        mut self,
-        movable_by_window_background: bool,
-    ) -> WindowBuilder {
-        self.platform_specific.movable_by_window_background = movable_by_window_background;
-        self
-    }
-
-    #[inline]
-    fn with_titlebar_transparent(mut self, titlebar_transparent: bool) -> WindowBuilder {
-        self.platform_specific.titlebar_transparent = titlebar_transparent;
-        self
-    }
-
-    #[inline]
-    fn with_titlebar_hidden(mut self, titlebar_hidden: bool) -> WindowBuilder {
-        self.platform_specific.titlebar_hidden = titlebar_hidden;
-        self
-    }
-
-    #[inline]
-    fn with_titlebar_buttons_hidden(mut self, titlebar_buttons_hidden: bool) -> WindowBuilder {
-        self.platform_specific.titlebar_buttons_hidden = titlebar_buttons_hidden;
-        self
-    }
-
-    #[inline]
-    fn with_title_hidden(mut self, title_hidden: bool) -> WindowBuilder {
-        self.platform_specific.title_hidden = title_hidden;
-        self
-    }
-
-    #[inline]
-    fn with_fullsize_content_view(mut self, fullsize_content_view: bool) -> WindowBuilder {
-        self.platform_specific.fullsize_content_view = fullsize_content_view;
-        self
-    }
-
-    #[inline]
-    fn with_resize_increments(mut self, increments: LogicalSize) -> WindowBuilder {
-        self.platform_specific.resize_increments = Some(increments.into());
-        self
-    }
-
-    #[inline]
-    fn with_disallow_hidpi(mut self, disallow_hidpi: bool) -> WindowBuilder {
-        self.platform_specific.disallow_hidpi = disallow_hidpi;
-        self
-    }
-}
-
-/// Additional methods on `MonitorHandle` that are specific to MacOS.
-pub trait MonitorHandleExtMacOS {
-    /// Returns the identifier of the monitor for Cocoa.
-    fn native_id(&self) -> u32;
-    /// Returns a pointer to the NSScreen representing this monitor.
-    fn ns_screen(&self) -> Option<*mut c_void>;
-}
-
-impl MonitorHandleExtMacOS for MonitorHandle {
-    #[inline]
-    fn native_id(&self) -> u32 {
-        self.inner.native_identifier()
-    }
-
-    fn ns_screen(&self) -> Option<*mut c_void> {
-        self.inner.ns_screen().map(|s| s as *mut c_void)
-    }
-}

src/platform/macos/events_loop.rs

@@ -0,0 +1,634 @@
+use cocoa::{self, appkit, foundation};
+use cocoa::appkit::{NSApplication, NSEvent, NSView, NSWindow};
+use events::{self, ElementState, Event, MouseButton, TouchPhase, WindowEvent, ModifiersState};
+use super::window::Window;
+use std;
+
+
+pub struct EventsLoop {
+    pub windows: std::sync::Mutex<Vec<std::sync::Weak<Window>>>,
+    pub pending_events: std::sync::Mutex<std::collections::VecDeque<Event>>,
+    modifiers: std::sync::Mutex<Modifiers>,
+    interrupted: std::sync::atomic::AtomicBool,
+
+    // The user event callback given via either of the `poll_events` or `run_forever` methods.
+    //
+    // We store the user's callback here so that it may be accessed by each of the window delegate
+    // callbacks (e.g. resize, close, etc) for the duration of a call to either of the
+    // `poll_events` or `run_forever` methods.
+    //
+    // This is *only* `Some` for the duration of a call to either of these methods and will be
+    // `None` otherwise.
+    user_callback: UserCallback,
+}
+
+struct Modifiers {
+    shift_pressed: bool,
+    ctrl_pressed: bool,
+    win_pressed: bool,
+    alt_pressed: bool,
+}
+
+// Wrapping the user callback in a type allows us to:
+//
+// - ensure the callback pointer is never accidentally cloned
+// - ensure that only the `EventsLoop` can `store` and `drop` the callback pointer
+// - `unsafe impl Send` and `Sync` so that `Send` and `Sync` can be implemented for `EventsLoop`.
+pub struct UserCallback {
+    mutex: std::sync::Mutex<Option<*mut FnMut(Event)>>,
+}
+
+
+unsafe impl Send for UserCallback {}
+unsafe impl Sync for UserCallback {}
+
+impl UserCallback {
+
+    // Here we store user's `callback` behind the mutex so that they may be safely shared between
+    // each of the window delegates.
+    //
+    // In order to make sure that the pointer is always valid, we must manually guarantee that it
+    // is dropped before the callback itself is dropped. Thus, this should *only* be called at the
+    // beginning of a call to `poll_events` and `run_forever`, both of which *must* drop the
+    // callback at the end of their scope using the `drop` method.
+    fn store<F>(&self, callback: &mut F)
+        where F: FnMut(Event)
+    {
+        let trait_object = callback as &mut FnMut(Event);
+        let trait_object_ptr = trait_object as *const FnMut(Event) as *mut FnMut(Event);
+        *self.mutex.lock().unwrap() = Some(trait_object_ptr);
+    }
+
+    // Emits the given event via the user-given callback.
+    //
+    // This is unsafe as it requires dereferencing the pointer to the user-given callback. We
+    // guarantee this is safe by ensuring the `UserCallback` never lives longer than the user-given
+    // callback.
+    //
+    // Note that the callback may not always be `Some`. This is because some `NSWindowDelegate`
+    // callbacks can be triggered by means other than `NSApp().sendEvent`. For example, if a window
+    // is destroyed or created during a call to the user's callback, the `WindowDelegate` methods
+    // may be called with `windowShouldClose` or `windowDidResignKey`.
+    unsafe fn call_with_event(&self, event: Event) {
+        let callback = match self.mutex.lock().unwrap().take() {
+            Some(callback) => callback,
+            None => return,
+        };
+        (*callback)(event);
+        *self.mutex.lock().unwrap() = Some(callback);
+    }
+
+    // Used to drop the user callback pointer at the end of the `poll_events` and `run_forever`
+    // methods. This is done to enforce our guarantee that the top callback will never live longer
+    // than the call to either `poll_events` or `run_forever` to which it was given.
+    fn drop(&self) {
+        self.mutex.lock().unwrap().take();
+    }
+
+}
+
+
+impl EventsLoop {
+
+    pub fn new() -> Self {
+        let modifiers = Modifiers {
+            shift_pressed: false,
+            ctrl_pressed: false,
+            win_pressed: false,
+            alt_pressed: false,
+        };
+        EventsLoop {
+            windows: std::sync::Mutex::new(Vec::new()),
+            pending_events: std::sync::Mutex::new(std::collections::VecDeque::new()),
+            modifiers: std::sync::Mutex::new(modifiers),
+            interrupted: std::sync::atomic::AtomicBool::new(false),
+            user_callback: UserCallback { mutex: std::sync::Mutex::new(None) },
+        }
+    }
+
+    pub fn poll_events<F>(&self, mut callback: F)
+        where F: FnMut(Event),
+    {
+        unsafe {
+            if !msg_send![cocoa::base::class("NSThread"), isMainThread] {
+                panic!("Events can only be polled from the main thread on macOS");
+            }
+        }
+
+        self.user_callback.store(&mut callback);
+
+        // Loop as long as we have pending events to return.
+        loop {
+            unsafe {
+                // First, yield all pending events.
+                self.call_user_callback_with_pending_events();
+
+                let pool = foundation::NSAutoreleasePool::new(cocoa::base::nil);
+
+                // Poll for the next event, returning `nil` if there are none.
+                let ns_event = appkit::NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
+                    appkit::NSAnyEventMask.bits() | appkit::NSEventMaskPressure.bits(),
+                    foundation::NSDate::distantPast(cocoa::base::nil),
+                    foundation::NSDefaultRunLoopMode,
+                    cocoa::base::YES);
+
+                let event = self.ns_event_to_event(ns_event);
+
+                let _: () = msg_send![pool, release];
+
+                match event {
+                    // Call the user's callback.
+                    Some(event) => self.user_callback.call_with_event(event),
+                    None => break,
+                }
+            }
+        }
+
+        self.user_callback.drop();
+    }
+
+    pub fn run_forever<F>(&self, mut callback: F)
+        where F: FnMut(Event)
+    {
+        self.interrupted.store(false, std::sync::atomic::Ordering::Relaxed);
+
+        unsafe {
+            if !msg_send![cocoa::base::class("NSThread"), isMainThread] {
+                panic!("Events can only be polled from the main thread on macOS");
+            }
+        }
+
+        self.user_callback.store(&mut callback);
+
+        loop {
+            unsafe {
+                // First, yield all pending events.
+                self.call_user_callback_with_pending_events();
+
+                let pool = foundation::NSAutoreleasePool::new(cocoa::base::nil);
+
+                // Wait for the next event. Note that this function blocks during resize.
+                let ns_event = appkit::NSApp().nextEventMatchingMask_untilDate_inMode_dequeue_(
+                    appkit::NSAnyEventMask.bits() | appkit::NSEventMaskPressure.bits(),
+                    foundation::NSDate::distantFuture(cocoa::base::nil),
+                    foundation::NSDefaultRunLoopMode,
+                    cocoa::base::YES);
+
+                let maybe_event = self.ns_event_to_event(ns_event);
+
+                // Release the pool before calling the top callback in case the user calls either
+                // `run_forever` or `poll_events` within the callback.
+                let _: () = msg_send![pool, release];
+
+                if let Some(event) = maybe_event {
+                    self.user_callback.call_with_event(event);
+                }
+            }
+
+            if self.interrupted.load(std::sync::atomic::Ordering::Relaxed) {
+                self.interrupted.store(false, std::sync::atomic::Ordering::Relaxed);
+                break;
+            }
+        }
+
+        self.user_callback.drop();
+    }
+
+    pub fn interrupt(&self) {
+        self.interrupted.store(true, std::sync::atomic::Ordering::Relaxed);
+
+        // Awaken the event loop by triggering `NSApplicationActivatedEventType`.
+        unsafe {
+            let pool = foundation::NSAutoreleasePool::new(cocoa::base::nil);
+            let event =
+                NSEvent::otherEventWithType_location_modifierFlags_timestamp_windowNumber_context_subtype_data1_data2_(
+                    cocoa::base::nil,
+                    appkit::NSApplicationDefined,
+                    foundation::NSPoint::new(0.0, 0.0),
+                    appkit::NSEventModifierFlags::empty(),
+                    0.0,
+                    0,
+                    cocoa::base::nil,
+                    appkit::NSEventSubtype::NSApplicationActivatedEventType,
+                    0,
+                    0);
+            appkit::NSApp().postEvent_atStart_(event, cocoa::base::NO);
+            foundation::NSAutoreleasePool::drain(pool);
+        }
+    }
+
+    // Removes the window with the given `Id` from the `windows` list.
+    //
+    // This is called when a window is either `Closed` or `Drop`ped.
+    pub fn find_and_remove_window(&self, id: super::window::Id) {
+        if let Ok(mut windows) = self.windows.lock() {
+            windows.retain(|w| match w.upgrade() {
+                Some(w) => w.id() != id,
+                None => true,
+            });
+        }
+    }
+
+    fn call_user_callback_with_pending_events(&self) {
+        loop {
+            let event = match self.pending_events.lock().unwrap().pop_front() {
+                Some(event) => event,
+                None => return,
+            };
+            unsafe {
+                self.user_callback.call_with_event(event);
+            }
+        }
+    }
+
+    // Calls the user callback if one exists.
+    //
+    // Otherwise, stores the event in the `pending_events` queue.
+    //
+    // This is necessary for the case when `WindowDelegate` callbacks are triggered during a call
+    // to the user's callback.
+    pub fn call_user_callback_with_event_or_store_in_pending(&self, event: Event) {
+        if self.user_callback.mutex.lock().unwrap().is_some() {
+            unsafe {
+                self.user_callback.call_with_event(event);
+            }
+        } else {
+            self.pending_events.lock().unwrap().push_back(event);
+        }
+    }
+
+    // Convert some given `NSEvent` into a winit `Event`.
+    unsafe fn ns_event_to_event(&self, ns_event: cocoa::base::id) -> Option<Event> {
+        if ns_event == cocoa::base::nil {
+            return None;
+        }
+
+        // FIXME: Despite not being documented anywhere, an `NSEvent` is produced when a user opens
+        // Spotlight while the NSApplication is in focus. This `NSEvent` produces a `NSEventType`
+        // with value `21`. This causes a SEGFAULT as soon as we try to match on the `NSEventType`
+        // enum as there is no variant associated with the value. Thus, we return early if this
+        // sneaky event occurs. If someone does find some documentation on this, please fix this by
+        // adding an appropriate variant to the `NSEventType` enum in the cocoa-rs crate.
+        if ns_event.eventType() as u64 == 21 {
+            return None;
+        }
+
+        let event_type = ns_event.eventType();
+        let ns_window = ns_event.window();
+        let window_id = super::window::get_window_id(ns_window);
+
+        // FIXME: Document this. Why do we do this? Seems like it passes on events to window/app.
+        // If we don't do this, window does not become main for some reason.
+        match event_type {
+            appkit::NSKeyDown => (),
+            _ => appkit::NSApp().sendEvent_(ns_event),
+        }
+
+        let windows = self.windows.lock().unwrap();
+        let maybe_window = windows.iter()
+            .filter_map(std::sync::Weak::upgrade)
+            .find(|window| window_id == window.id());
+
+        let into_event = |window_event| Event::WindowEvent {
+            window_id: ::WindowId(window_id),
+            event: window_event,
+        };
+
+        // Returns `Some` window if one of our windows is the key window.
+        let maybe_key_window = || windows.iter()
+            .filter_map(std::sync::Weak::upgrade)
+            .find(|window| {
+                let is_key_window: cocoa::base::BOOL = msg_send![*window.window, isKeyWindow];
+                is_key_window == cocoa::base::YES
+            });
+
+        match event_type {
+
+            appkit::NSKeyDown => {
+                let mut events = std::collections::VecDeque::new();
+                let received_c_str = foundation::NSString::UTF8String(ns_event.characters());
+                let received_str = std::ffi::CStr::from_ptr(received_c_str);
+                for received_char in std::str::from_utf8(received_str.to_bytes()).unwrap().chars() {
+                    let window_event = WindowEvent::ReceivedCharacter(received_char);
+                    events.push_back(into_event(window_event));
+                }
+
+                let vkey =  to_virtual_key_code(NSEvent::keyCode(ns_event));
+                let state = ElementState::Pressed;
+                let code = NSEvent::keyCode(ns_event) as u8;
+                let window_event = WindowEvent::KeyboardInput(state, code, vkey, event_mods(ns_event));
+                events.push_back(into_event(window_event));
+                let event = events.pop_front();
+                self.pending_events.lock().unwrap().extend(events.into_iter());
+                event
+            },
+
+            appkit::NSKeyUp => {
+                let vkey =  to_virtual_key_code(NSEvent::keyCode(ns_event));
+
+                let state = ElementState::Released;
+                let code = NSEvent::keyCode(ns_event) as u8;
+                let window_event = WindowEvent::KeyboardInput(state, code, vkey, event_mods(ns_event));
+                Some(into_event(window_event))
+            },
+
+            appkit::NSFlagsChanged => {
+                let mut modifiers = self.modifiers.lock().unwrap();
+
+                unsafe fn modifier_event(event: cocoa::base::id,
+                                         keymask: appkit::NSEventModifierFlags,
+                                         key: events::VirtualKeyCode,
+                                         key_pressed: bool) -> Option<WindowEvent>
+                {
+                    if !key_pressed && NSEvent::modifierFlags(event).contains(keymask) {
+                        let state = ElementState::Pressed;
+                        let code = NSEvent::keyCode(event) as u8;
+                        let window_event = WindowEvent::KeyboardInput(state, code, Some(key), event_mods(event));
+                        Some(window_event)
+
+                    } else if key_pressed && !NSEvent::modifierFlags(event).contains(keymask) {
+                        let state = ElementState::Released;
+                        let code = NSEvent::keyCode(event) as u8;
+                        let window_event = WindowEvent::KeyboardInput(state, code, Some(key), event_mods(event));
+                        Some(window_event)
+
+                    } else {
+                        None
+                    }
+                }
+
+                let mut events = std::collections::VecDeque::new();
+                if let Some(window_event) = modifier_event(ns_event,
+                                                           appkit::NSShiftKeyMask,
+                                                           events::VirtualKeyCode::LShift,
+                                                           modifiers.shift_pressed)
+                {
+                    modifiers.shift_pressed = !modifiers.shift_pressed;
+                    events.push_back(into_event(window_event));
+                }
+
+                if let Some(window_event) = modifier_event(ns_event,
+                                                           appkit::NSControlKeyMask,
+                                                           events::VirtualKeyCode::LControl,
+                                                           modifiers.ctrl_pressed)
+                {
+                    modifiers.ctrl_pressed = !modifiers.ctrl_pressed;
+                    events.push_back(into_event(window_event));
+                }
+
+                if let Some(window_event) = modifier_event(ns_event,
+                                                           appkit::NSCommandKeyMask,
+                                                           events::VirtualKeyCode::LWin,
+                                                           modifiers.win_pressed)
+                {
+                    modifiers.win_pressed = !modifiers.win_pressed;
+                    events.push_back(into_event(window_event));
+                }
+
+                if let Some(window_event) = modifier_event(ns_event,
+                                                           appkit::NSAlternateKeyMask,
+                                                           events::VirtualKeyCode::LAlt,
+                                                           modifiers.alt_pressed)
+                {
+                    modifiers.alt_pressed = !modifiers.alt_pressed;
+                    events.push_back(into_event(window_event));
+                }
+
+                let event = events.pop_front();
+                self.pending_events.lock().unwrap().extend(events.into_iter());
+                event
+            },
+
+            appkit::NSLeftMouseDown => { Some(into_event(WindowEvent::MouseInput(ElementState::Pressed, MouseButton::Left))) },
+            appkit::NSLeftMouseUp => { Some(into_event(WindowEvent::MouseInput(ElementState::Released, MouseButton::Left))) },
+            appkit::NSRightMouseDown => { Some(into_event(WindowEvent::MouseInput(ElementState::Pressed, MouseButton::Right))) },
+            appkit::NSRightMouseUp => { Some(into_event(WindowEvent::MouseInput(ElementState::Released, MouseButton::Right))) },
+            appkit::NSOtherMouseDown => { Some(into_event(WindowEvent::MouseInput(ElementState::Pressed, MouseButton::Middle))) },
+            appkit::NSOtherMouseUp => { Some(into_event(WindowEvent::MouseInput(ElementState::Released, MouseButton::Middle))) },
+
+            appkit::NSMouseEntered => { Some(into_event(WindowEvent::MouseEntered)) },
+            appkit::NSMouseExited => { Some(into_event(WindowEvent::MouseLeft)) },
+
+            appkit::NSMouseMoved |
+            appkit::NSLeftMouseDragged |
+            appkit::NSOtherMouseDragged |
+            appkit::NSRightMouseDragged => {
+                // If the mouse movement was on one of our windows, use it.
+                // Otherwise, if one of our windows is the key window (receiving input), use it.
+                // Otherwise, return `None`.
+                let window = match maybe_window.or_else(maybe_key_window) {
+                    Some(window) => window,
+                    None => return None,
+                };
+
+                let window_point = ns_event.locationInWindow();
+                let view_point = if ns_window == cocoa::base::nil {
+                    let ns_size = foundation::NSSize::new(0.0, 0.0);
+                    let ns_rect = foundation::NSRect::new(window_point, ns_size);
+                    let window_rect = window.window.convertRectFromScreen_(ns_rect);
+                    window.view.convertPoint_fromView_(window_rect.origin, cocoa::base::nil)
+                } else {
+                    window.view.convertPoint_fromView_(window_point, cocoa::base::nil)
+                };
+                let view_rect = NSView::frame(*window.view);
+                let scale_factor = window.hidpi_factor();
+
+                let x = (scale_factor * view_point.x as f32) as i32;
+                let y = (scale_factor * (view_rect.size.height - view_point.y) as f32) as i32;
+                let window_event = WindowEvent::MouseMoved(x, y);
+                let event = Event::WindowEvent { window_id: ::WindowId(window.id()), event: window_event };
+                Some(event)
+            },
+
+            appkit::NSScrollWheel => {
+                // If none of the windows received the scroll, return `None`.
+                let window = match maybe_window {
+                    Some(window) => window,
+                    None => return None,
+                };
+
+                use events::MouseScrollDelta::{LineDelta, PixelDelta};
+                let scale_factor = window.hidpi_factor();
+                let delta = if ns_event.hasPreciseScrollingDeltas() == cocoa::base::YES {
+                    PixelDelta(scale_factor * ns_event.scrollingDeltaX() as f32,
+                               scale_factor * ns_event.scrollingDeltaY() as f32)
+                } else {
+                    LineDelta(scale_factor * ns_event.scrollingDeltaX() as f32,
+                              scale_factor * ns_event.scrollingDeltaY() as f32)
+                };
+                let phase = match ns_event.phase() {
+                    appkit::NSEventPhaseMayBegin | appkit::NSEventPhaseBegan => TouchPhase::Started,
+                    appkit::NSEventPhaseEnded => TouchPhase::Ended,
+                    _ => TouchPhase::Moved,
+                };
+                let window_event = WindowEvent::MouseWheel(delta, phase);
+                Some(into_event(window_event))
+            },
+
+            appkit::NSEventTypePressure => {
+                let pressure = ns_event.pressure();
+                let stage = ns_event.stage();
+                let window_event = WindowEvent::TouchpadPressure(pressure, stage);
+                Some(into_event(window_event))
+            },
+
+            appkit::NSApplicationDefined => match ns_event.subtype() {
+                appkit::NSEventSubtype::NSApplicationActivatedEventType => {
+                    Some(into_event(WindowEvent::Awakened))
+                },
+                _ => None,
+            },
+
+            _  => None,
+        }
+    }
+
+}
+
+
+fn to_virtual_key_code(code: u16) -> Option<events::VirtualKeyCode> {
+    Some(match code {
+        0x00 => events::VirtualKeyCode::A,
+        0x01 => events::VirtualKeyCode::S,
+        0x02 => events::VirtualKeyCode::D,
+        0x03 => events::VirtualKeyCode::F,
+        0x04 => events::VirtualKeyCode::H,
+        0x05 => events::VirtualKeyCode::G,
+        0x06 => events::VirtualKeyCode::Z,
+        0x07 => events::VirtualKeyCode::X,
+        0x08 => events::VirtualKeyCode::C,
+        0x09 => events::VirtualKeyCode::V,
+        //0x0a => World 1,
+        0x0b => events::VirtualKeyCode::B,
+        0x0c => events::VirtualKeyCode::Q,
+        0x0d => events::VirtualKeyCode::W,
+        0x0e => events::VirtualKeyCode::E,
+        0x0f => events::VirtualKeyCode::R,
+        0x10 => events::VirtualKeyCode::Y,
+        0x11 => events::VirtualKeyCode::T,
+        0x12 => events::VirtualKeyCode::Key1,
+        0x13 => events::VirtualKeyCode::Key2,
+        0x14 => events::VirtualKeyCode::Key3,
+        0x15 => events::VirtualKeyCode::Key4,
+        0x16 => events::VirtualKeyCode::Key6,
+        0x17 => events::VirtualKeyCode::Key5,
+        0x18 => events::VirtualKeyCode::Equals,
+        0x19 => events::VirtualKeyCode::Key9,
+        0x1a => events::VirtualKeyCode::Key7,
+        0x1b => events::VirtualKeyCode::Minus,
+        0x1c => events::VirtualKeyCode::Key8,
+        0x1d => events::VirtualKeyCode::Key0,
+        0x1e => events::VirtualKeyCode::RBracket,
+        0x1f => events::VirtualKeyCode::O,
+        0x20 => events::VirtualKeyCode::U,
+        0x21 => events::VirtualKeyCode::LBracket,
+        0x22 => events::VirtualKeyCode::I,
+        0x23 => events::VirtualKeyCode::P,
+        0x24 => events::VirtualKeyCode::Return,
+        0x25 => events::VirtualKeyCode::L,
+        0x26 => events::VirtualKeyCode::J,
+        0x27 => events::VirtualKeyCode::Apostrophe,
+        0x28 => events::VirtualKeyCode::K,
+        0x29 => events::VirtualKeyCode::Semicolon,
+        0x2a => events::VirtualKeyCode::Backslash,
+        0x2b => events::VirtualKeyCode::Comma,
+        0x2c => events::VirtualKeyCode::Slash,
+        0x2d => events::VirtualKeyCode::N,
+        0x2e => events::VirtualKeyCode::M,
+        0x2f => events::VirtualKeyCode::Period,
+        0x30 => events::VirtualKeyCode::Tab,
+        0x31 => events::VirtualKeyCode::Space,
+        0x32 => events::VirtualKeyCode::Grave,
+        0x33 => events::VirtualKeyCode::Back,
+        //0x34 => unkown,
+        0x35 => events::VirtualKeyCode::Escape,
+        0x36 => events::VirtualKeyCode::RWin,
+        0x37 => events::VirtualKeyCode::LWin,
+        0x38 => events::VirtualKeyCode::LShift,
+        //0x39 => Caps lock,
+        //0x3a => Left alt,
+        0x3b => events::VirtualKeyCode::LControl,
+        0x3c => events::VirtualKeyCode::RShift,
+        //0x3d => Right alt,
+        0x3e => events::VirtualKeyCode::RControl,
+        //0x3f => Fn key,
+        //0x40 => F17 Key,
+        0x41 => events::VirtualKeyCode::Decimal,
+        //0x42 -> unkown,
+        0x43 => events::VirtualKeyCode::Multiply,
+        //0x44 => unkown,
+        0x45 => events::VirtualKeyCode::Add,
+        //0x46 => unkown,
+        0x47 => events::VirtualKeyCode::Numlock,
+        //0x48 => KeypadClear,
+        0x49 => events::VirtualKeyCode::VolumeUp,
+        0x4a => events::VirtualKeyCode::VolumeDown,
+        0x4b => events::VirtualKeyCode::Divide,
+        0x4c => events::VirtualKeyCode::NumpadEnter,
+        //0x4d => unkown,
+        0x4e => events::VirtualKeyCode::Subtract,
+        //0x4f => F18 key,
+        //0x50 => F19 Key,
+        0x51 => events::VirtualKeyCode::NumpadEquals,
+        0x52 => events::VirtualKeyCode::Numpad0,
+        0x53 => events::VirtualKeyCode::Numpad1,
+        0x54 => events::VirtualKeyCode::Numpad2,
+        0x55 => events::VirtualKeyCode::Numpad3,
+        0x56 => events::VirtualKeyCode::Numpad4,
+        0x57 => events::VirtualKeyCode::Numpad5,
+        0x58 => events::VirtualKeyCode::Numpad6,
+        0x59 => events::VirtualKeyCode::Numpad7,
+        //0x5a => F20 Key,
+        0x5b => events::VirtualKeyCode::Numpad8,
+        0x5c => events::VirtualKeyCode::Numpad9,
+        //0x5d => unkown,
+        //0x5e => unkown,
+        //0x5f => unkown,
+        0x60 => events::VirtualKeyCode::F5,
+        0x61 => events::VirtualKeyCode::F6,
+        0x62 => events::VirtualKeyCode::F7,
+        0x63 => events::VirtualKeyCode::F3,
+        0x64 => events::VirtualKeyCode::F8,
+        0x65 => events::VirtualKeyCode::F9,
+        //0x66 => unkown,
+        0x67 => events::VirtualKeyCode::F11,
+        //0x68 => unkown,
+        0x69 => events::VirtualKeyCode::F13,
+        //0x6a => F16 Key,
+        0x6b => events::VirtualKeyCode::F14,
+        //0x6c => unkown,
+        0x6d => events::VirtualKeyCode::F10,
+        //0x6e => unkown,
+        0x6f => events::VirtualKeyCode::F12,
+        //0x70 => unkown,
+        0x71 => events::VirtualKeyCode::F15,
+        0x72 => events::VirtualKeyCode::Insert,
+        0x73 => events::VirtualKeyCode::Home,
+        0x74 => events::VirtualKeyCode::PageUp,
+        0x75 => events::VirtualKeyCode::Delete,
+        0x76 => events::VirtualKeyCode::F4,
+        0x77 => events::VirtualKeyCode::End,
+        0x78 => events::VirtualKeyCode::F2,
+        0x79 => events::VirtualKeyCode::PageDown,
+        0x7a => events::VirtualKeyCode::F1,
+        0x7b => events::VirtualKeyCode::Left,
+        0x7c => events::VirtualKeyCode::Right,
+        0x7d => events::VirtualKeyCode::Down,
+        0x7e => events::VirtualKeyCode::Up,
+        //0x7f =>  unkown,
+
+        _ => return None,
+    })
+}
+
+fn event_mods(event: cocoa::base::id) -> ModifiersState {
+    let flags = unsafe {
+        NSEvent::modifierFlags(event)
+    };
+    ModifiersState {
+        shift: flags.contains(appkit::NSShiftKeyMask),
+        ctrl: flags.contains(appkit::NSControlKeyMask),
+        alt: flags.contains(appkit::NSAlternateKeyMask),
+        logo: flags.contains(appkit::NSCommandKeyMask),
+    }
+}

src/platform/macos/mod.rs

@@ -0,0 +1,38 @@
+#![cfg(target_os = "macos")]
+
+pub use self::events_loop::EventsLoop;
+pub use self::monitor::{MonitorId, get_available_monitors, get_primary_monitor};
+pub use self::window::{Id as WindowId, PlatformSpecificWindowBuilderAttributes, Window};
+
+use {CreationError};
+
+pub struct Window2 {
+    pub window: ::std::sync::Arc<Window>,
+}
+
+impl ::std::ops::Deref for Window2 {
+    type Target = Window;
+    #[inline]
+    fn deref(&self) -> &Window {
+        &*self.window
+    }
+}
+
+impl Window2 {
+
+    pub fn new(events_loop: ::std::sync::Arc<EventsLoop>,
+               attributes: &::WindowAttributes,
+               pl_attribs: &PlatformSpecificWindowBuilderAttributes) -> Result<Self, CreationError>
+    {
+        let weak_events_loop = ::std::sync::Arc::downgrade(&events_loop);
+        let window = ::std::sync::Arc::new(try!(Window::new(weak_events_loop, attributes, pl_attribs)));
+        let weak_window = ::std::sync::Arc::downgrade(&window);
+        events_loop.windows.lock().unwrap().push(weak_window);
+        Ok(Window2 { window: window })
+    }
+
+}
+
+mod events_loop;
+mod monitor;
+mod window;

src/platform/macos/monitor.rs

@@ -0,0 +1,50 @@
+use core_graphics::display;
+use std::collections::VecDeque;
+use native_monitor::NativeMonitorId;
+
+#[derive(Clone)]
+pub struct MonitorId(u32);
+
+pub fn get_available_monitors() -> VecDeque<MonitorId> {
+    let mut monitors = VecDeque::new();
+    unsafe {
+        let max_displays = 10u32;
+        let mut active_displays = [0u32; 10];
+        let mut display_count = 0;
+        display::CGGetActiveDisplayList(max_displays, &mut active_displays[0], &mut display_count);
+        for i in 0..display_count as usize {
+            monitors.push_back(MonitorId(active_displays[i]));
+        }
+    }
+    monitors
+}
+
+#[inline]
+pub fn get_primary_monitor() -> MonitorId {
+    let id = unsafe { MonitorId(display::CGMainDisplayID()) };
+    id
+}
+
+impl MonitorId {
+    pub fn get_name(&self) -> Option<String> {
+        let MonitorId(display_id) = *self;
+        let screen_num = unsafe { display::CGDisplayModelNumber(display_id) };
+        Some(format!("Monitor #{}", screen_num))
+    }
+
+    #[inline]
+    pub fn get_native_identifier(&self) -> NativeMonitorId {
+        let MonitorId(display_id) = *self;
+        NativeMonitorId::Numeric(display_id)
+    }
+
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        let MonitorId(display_id) = *self;
+        let dimension = unsafe {
+            let height = display::CGDisplayPixelsHigh(display_id);
+            let width = display::CGDisplayPixelsWide(display_id);
+            (width as u32, height as u32)
+        };
+        dimension
+    }
+}

src/platform/macos/window.rs

@@ -0,0 +1,656 @@
+use {CreationError, Event, WindowEvent, WindowId, MouseCursor, CursorState};
+use CreationError::OsError;
+use libc;
+
+use WindowAttributes;
+use native_monitor::NativeMonitorId;
+use os::macos::ActivationPolicy;
+
+use objc;
+use objc::runtime::{Class, Object, Sel, BOOL, YES, NO};
+use objc::declare::ClassDecl;
+
+use cocoa;
+use cocoa::base::{id, nil};
+use cocoa::foundation::{NSPoint, NSRect, NSSize, NSString, NSUInteger};
+use cocoa::appkit::{self, NSApplication, NSColor, NSView, NSWindow};
+
+use core_graphics::display::{CGAssociateMouseAndMouseCursorPosition, CGMainDisplayID, CGDisplayPixelsHigh, CGWarpMouseCursorPosition};
+
+use std;
+use std::ops::Deref;
+use std::os::raw::c_void;
+
+use os::macos::WindowExt;
+
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub struct Id(pub usize);
+
+struct DelegateState {
+    view: IdRef,
+    window: IdRef,
+    events_loop: std::sync::Weak<super::EventsLoop>,
+}
+
+pub struct WindowDelegate {
+    state: Box<DelegateState>,
+    _this: IdRef,
+}
+
+impl WindowDelegate {
+    /// Get the delegate class, initiailizing it neccessary
+    fn class() -> *const Class {
+        use std::os::raw::c_void;
+
+        // Emits an event via the `EventsLoop`'s callback or stores it in the pending queue.
+        unsafe fn emit_event(state: &mut DelegateState, window_event: WindowEvent) {
+            let window_id = get_window_id(*state.window);
+            let event = Event::WindowEvent {
+                window_id: WindowId(window_id),
+                event: window_event,
+            };
+
+            if let Some(events_loop) = state.events_loop.upgrade() {
+                events_loop.call_user_callback_with_event_or_store_in_pending(event);
+            }
+        }
+
+        // Called when the window is resized or when the window was moved to a different screen.
+        unsafe fn emit_resize_event(state: &mut DelegateState) {
+            let rect = NSView::frame(*state.view);
+            let scale_factor = NSWindow::backingScaleFactor(*state.window) as f32;
+            let width = (scale_factor * rect.size.width as f32) as u32;
+            let height = (scale_factor * rect.size.height as f32) as u32;
+            emit_event(state, WindowEvent::Resized(width, height));
+        }
+
+        extern fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("winitState");
+                let state = &mut *(state as *mut DelegateState);
+                emit_event(state, WindowEvent::Closed);
+
+                // Remove the window from the events_loop.
+                if let Some(events_loop) = state.events_loop.upgrade() {
+                    let window_id = get_window_id(*state.window);
+                    events_loop.find_and_remove_window(window_id);
+                }
+            }
+            YES
+        }
+
+        extern fn window_did_resize(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("winitState");
+                let state = &mut *(state as *mut DelegateState);
+                emit_resize_event(state);
+            }
+        }
+
+        extern fn window_did_change_screen(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("winitState");
+                let state = &mut *(state as *mut DelegateState);
+                emit_resize_event(state);
+            }
+        }
+
+        extern fn window_did_become_key(this: &Object, _: Sel, _: id) {
+            unsafe {
+                // TODO: center the cursor if the window had mouse grab when it
+                // lost focus
+                let state: *mut c_void = *this.get_ivar("winitState");
+                let state = &mut *(state as *mut DelegateState);
+                emit_event(state, WindowEvent::Focused(true));
+            }
+        }
+
+        extern fn window_did_resign_key(this: &Object, _: Sel, _: id) {
+            unsafe {
+                let state: *mut c_void = *this.get_ivar("winitState");
+                let state = &mut *(state as *mut DelegateState);
+                emit_event(state, WindowEvent::Focused(false));
+            }
+        }
+
+        static mut DELEGATE_CLASS: *const Class = 0 as *const Class;
+        static INIT: std::sync::Once = std::sync::ONCE_INIT;
+
+        INIT.call_once(|| unsafe {
+            // Create new NSWindowDelegate
+            let superclass = Class::get("NSObject").unwrap();
+            let mut decl = ClassDecl::new("WinitWindowDelegate", superclass).unwrap();
+
+            // Add callback methods
+            decl.add_method(sel!(windowShouldClose:),
+                window_should_close as extern fn(&Object, Sel, id) -> BOOL);
+            decl.add_method(sel!(windowDidResize:),
+                window_did_resize as extern fn(&Object, Sel, id));
+            decl.add_method(sel!(windowDidChangeScreen:),
+                window_did_change_screen as extern fn(&Object, Sel, id));
+
+            decl.add_method(sel!(windowDidBecomeKey:),
+                window_did_become_key as extern fn(&Object, Sel, id));
+            decl.add_method(sel!(windowDidResignKey:),
+                window_did_resign_key as extern fn(&Object, Sel, id));
+
+            // Store internal state as user data
+            decl.add_ivar::<*mut c_void>("winitState");
+
+            DELEGATE_CLASS = decl.register();
+        });
+
+        unsafe {
+            DELEGATE_CLASS
+        }
+    }
+
+    fn new(state: DelegateState) -> WindowDelegate {
+        // Box the state so we can give a pointer to it
+        let mut state = Box::new(state);
+        let state_ptr: *mut DelegateState = &mut *state;
+        unsafe {
+            let delegate = IdRef::new(msg_send![WindowDelegate::class(), new]);
+
+            (&mut **delegate).set_ivar("winitState", state_ptr as *mut ::std::os::raw::c_void);
+            let _: () = msg_send![*state.window, setDelegate:*delegate];
+
+            WindowDelegate { state: state, _this: delegate }
+        }
+    }
+}
+
+impl Drop for WindowDelegate {
+    fn drop(&mut self) {
+        unsafe {
+            // Nil the window's delegate so it doesn't still reference us
+            let _: () = msg_send![*self.state.window, setDelegate:nil];
+        }
+    }
+}
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificWindowBuilderAttributes {
+    pub activation_policy: ActivationPolicy,
+}
+
+pub struct Window {
+    pub view: IdRef,
+    pub window: IdRef,
+    pub delegate: WindowDelegate,
+}
+
+unsafe impl Send for Window {}
+unsafe impl Sync for Window {}
+
+impl Drop for Window {
+    fn drop(&mut self) {
+        // Remove this window from the `EventLoop`s list of windows.
+        let id = self.id();
+        if let Some(ev) = self.delegate.state.events_loop.upgrade() {
+            ev.find_and_remove_window(id);
+        }
+
+        // Close the window if it has not yet been closed.
+        let nswindow = *self.window;
+        if nswindow != nil {
+            unsafe {
+                msg_send![nswindow, close];
+            }
+        }
+    }
+}
+
+impl WindowExt for Window {
+    #[inline]
+    fn get_nswindow(&self) -> *mut c_void {
+        *self.window as *mut c_void
+    }
+
+    #[inline]
+    fn get_nsview(&self) -> *mut c_void {
+        *self.view as *mut c_void
+    }
+}
+
+impl Window {
+    pub fn new(events_loop: std::sync::Weak<super::EventsLoop>,
+               win_attribs: &WindowAttributes,
+               pl_attribs: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window, CreationError>
+    {
+        unsafe {
+            if !msg_send![cocoa::base::class("NSThread"), isMainThread] {
+                panic!("Windows can only be created on the main thread on macOS");
+            }
+        }
+
+        let app = match Window::create_app(pl_attribs.activation_policy) {
+            Some(app) => app,
+            None      => { return Err(OsError(format!("Couldn't create NSApplication"))); },
+        };
+
+        let window = match Window::create_window(win_attribs)
+        {
+            Some(window) => window,
+            None         => { return Err(OsError(format!("Couldn't create NSWindow"))); },
+        };
+        let view = match Window::create_view(*window) {
+            Some(view) => view,
+            None       => { return Err(OsError(format!("Couldn't create NSView"))); },
+        };
+
+        unsafe {
+            if win_attribs.transparent {
+                (*window as id).setOpaque_(NO);
+                (*window as id).setBackgroundColor_(NSColor::clearColor(nil));
+            }
+
+            app.activateIgnoringOtherApps_(YES);
+            if win_attribs.visible {
+                window.makeKeyAndOrderFront_(nil);
+            } else {
+                window.makeKeyWindow();
+            }
+
+            if let Some((width, height)) = win_attribs.min_dimensions {
+                nswindow_set_min_dimensions(window.0, width.into(), height.into());
+            }
+
+            if let Some((width, height)) = win_attribs.max_dimensions {
+                nswindow_set_max_dimensions(window.0, width.into(), height.into());
+            }
+        }
+
+        let ds = DelegateState {
+            view: view.clone(),
+            window: window.clone(),
+            events_loop: events_loop,
+        };
+
+        let window = Window {
+            view: view,
+            window: window,
+            delegate: WindowDelegate::new(ds),
+        };
+
+        Ok(window)
+    }
+
+    pub fn id(&self) -> Id {
+        get_window_id(*self.window)
+    }
+
+    fn create_app(activation_policy: ActivationPolicy) -> Option<id> {
+        unsafe {
+            let app = appkit::NSApp();
+            if app == nil {
+                None
+            } else {
+                app.setActivationPolicy_(activation_policy.into());
+                app.finishLaunching();
+                Some(app)
+            }
+        }
+    }
+
+    fn create_window(attrs: &WindowAttributes) -> Option<IdRef> {
+        unsafe {
+            let screen = match attrs.monitor {
+                Some(ref monitor_id) => {
+                    let native_id = match monitor_id.get_native_identifier() {
+                        NativeMonitorId::Numeric(num) => num,
+                        _ => panic!("OS X monitors should always have a numeric native ID")
+                    };
+                    let matching_screen = {
+                        let screens = appkit::NSScreen::screens(nil);
+                        let count: NSUInteger = msg_send![screens, count];
+                        let key = IdRef::new(NSString::alloc(nil).init_str("NSScreenNumber"));
+                        let mut matching_screen: Option<id> = None;
+                        for i in 0..count {
+                            let screen = msg_send![screens, objectAtIndex:i as NSUInteger];
+                            let device_description = appkit::NSScreen::deviceDescription(screen);
+                            let value: id = msg_send![device_description, objectForKey:*key];
+                            if value != nil {
+                                let screen_number: NSUInteger = msg_send![value, unsignedIntegerValue];
+                                if screen_number as u32 == native_id {
+                                    matching_screen = Some(screen);
+                                    break;
+                                }
+                            }
+                        }
+                        matching_screen
+                    };
+                    Some(matching_screen.unwrap_or(appkit::NSScreen::mainScreen(nil)))
+                },
+                None => None
+            };
+            let frame = match screen {
+                Some(screen) => appkit::NSScreen::frame(screen),
+                None => {
+                    let (width, height) = attrs.dimensions.unwrap_or((800, 600));
+                    NSRect::new(NSPoint::new(0., 0.), NSSize::new(width as f64, height as f64))
+                }
+            };
+
+            let masks = if screen.is_some() {
+                // Fullscreen window
+                appkit::NSBorderlessWindowMask as NSUInteger |
+                appkit::NSResizableWindowMask as NSUInteger |
+                appkit::NSTitledWindowMask as NSUInteger
+            } else if attrs.decorations {
+                // Window with a titlebar
+                appkit::NSClosableWindowMask as NSUInteger |
+                appkit::NSMiniaturizableWindowMask as NSUInteger |
+                appkit::NSResizableWindowMask as NSUInteger |
+                appkit::NSTitledWindowMask as NSUInteger
+            } else {
+                // Window without a titlebar
+                appkit::NSClosableWindowMask as NSUInteger |
+                appkit::NSMiniaturizableWindowMask as NSUInteger |
+                appkit::NSResizableWindowMask as NSUInteger |
+                appkit::NSFullSizeContentViewWindowMask as NSUInteger
+            };
+
+            let window = IdRef::new(NSWindow::alloc(nil).initWithContentRect_styleMask_backing_defer_(
+                frame,
+                masks,
+                appkit::NSBackingStoreBuffered,
+                NO,
+            ));
+            window.non_nil().map(|window| {
+                let title = IdRef::new(NSString::alloc(nil).init_str(&attrs.title));
+                window.setReleasedWhenClosed_(NO);
+                window.setTitle_(*title);
+                window.setAcceptsMouseMovedEvents_(YES);
+
+                if !attrs.decorations {
+                    window.setTitleVisibility_(appkit::NSWindowTitleVisibility::NSWindowTitleHidden);
+                    window.setTitlebarAppearsTransparent_(YES);
+                }
+
+                if screen.is_some() {
+                    window.setLevel_(appkit::NSMainMenuWindowLevel as i64 + 1);
+                }
+                else {
+                    window.center();
+                }
+                window
+            })
+        }
+    }
+
+    fn create_view(window: id) -> Option<IdRef> {
+        unsafe {
+            let view = IdRef::new(NSView::alloc(nil).init());
+            view.non_nil().map(|view| {
+                view.setWantsBestResolutionOpenGLSurface_(YES);
+                window.setContentView_(*view);
+                view
+            })
+        }
+    }
+
+    pub fn set_title(&self, title: &str) {
+        unsafe {
+            let title = IdRef::new(NSString::alloc(nil).init_str(title));
+            self.window.setTitle_(*title);
+        }
+    }
+
+    #[inline]
+    pub fn show(&self) {
+        unsafe { NSWindow::makeKeyAndOrderFront_(*self.window, nil); }
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+        unsafe { NSWindow::orderOut_(*self.window, nil); }
+    }
+
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        unsafe {
+            let content_rect = NSWindow::contentRectForFrameRect_(*self.window, NSWindow::frame(*self.window));
+
+            // TODO: consider extrapolating the calculations for the y axis to
+            // a private method
+            Some((content_rect.origin.x as i32, (CGDisplayPixelsHigh(CGMainDisplayID()) as f64 - (content_rect.origin.y + content_rect.size.height)) as i32))
+        }
+    }
+
+    pub fn set_position(&self, x: i32, y: i32) {
+        unsafe {
+            let frame = NSWindow::frame(*self.view);
+
+            // NOTE: `setFrameOrigin` might not give desirable results when
+            // setting window, as it treats bottom left as origin.
+            // `setFrameTopLeftPoint` treats top left as origin (duh), but
+            // does not equal the value returned by `get_window_position`
+            // (there is a difference by 22 for me on yosemite)
+
+            // TODO: consider extrapolating the calculations for the y axis to
+            // a private method
+            let dummy = NSRect::new(NSPoint::new(x as f64, CGDisplayPixelsHigh(CGMainDisplayID()) as f64 - (frame.size.height + y as f64)), NSSize::new(0f64, 0f64));
+            let conv = NSWindow::frameRectForContentRect_(*self.window, dummy);
+
+            // NSWindow::setFrameTopLeftPoint_(*self.window, conv.origin);
+            NSWindow::setFrameOrigin_(*self.window, conv.origin);
+        }
+    }
+
+    #[inline]
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        unsafe {
+            let view_frame = NSView::frame(*self.view);
+            Some((view_frame.size.width as u32, view_frame.size.height as u32))
+        }
+    }
+
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        unsafe {
+            let window_frame = NSWindow::frame(*self.window);
+            Some((window_frame.size.width as u32, window_frame.size.height as u32))
+        }
+    }
+
+    #[inline]
+    pub fn set_inner_size(&self, width: u32, height: u32) {
+        unsafe {
+            NSWindow::setContentSize_(*self.window, NSSize::new(width as f64, height as f64));
+        }
+    }
+
+    #[inline]
+    pub fn platform_display(&self) -> *mut libc::c_void {
+        unimplemented!()
+    }
+
+    #[inline]
+    pub fn platform_window(&self) -> *mut libc::c_void {
+        *self.window as *mut libc::c_void
+    }
+
+    pub fn set_cursor(&self, cursor: MouseCursor) {
+        let cursor_name = match cursor {
+            MouseCursor::Arrow | MouseCursor::Default => "arrowCursor",
+            MouseCursor::Hand => "pointingHandCursor",
+            MouseCursor::Grabbing | MouseCursor::Grab => "closedHandCursor",
+            MouseCursor::Text => "IBeamCursor",
+            MouseCursor::VerticalText => "IBeamCursorForVerticalLayout",
+            MouseCursor::Copy => "dragCopyCursor",
+            MouseCursor::Alias => "dragLinkCursor",
+            MouseCursor::NotAllowed | MouseCursor::NoDrop => "operationNotAllowedCursor",
+            MouseCursor::ContextMenu => "contextualMenuCursor",
+            MouseCursor::Crosshair => "crosshairCursor",
+            MouseCursor::EResize => "resizeRightCursor",
+            MouseCursor::NResize => "resizeUpCursor",
+            MouseCursor::WResize => "resizeLeftCursor",
+            MouseCursor::SResize => "resizeDownCursor",
+            MouseCursor::EwResize | MouseCursor::ColResize => "resizeLeftRightCursor",
+            MouseCursor::NsResize | MouseCursor::RowResize => "resizeUpDownCursor",
+
+            /// TODO: Find appropriate OSX cursors
+            MouseCursor::NeResize | MouseCursor::NwResize |
+            MouseCursor::SeResize | MouseCursor::SwResize |
+            MouseCursor::NwseResize | MouseCursor::NeswResize |
+
+            MouseCursor::Cell | MouseCursor::NoneCursor |
+            MouseCursor::Wait | MouseCursor::Progress | MouseCursor::Help |
+            MouseCursor::Move | MouseCursor::AllScroll | MouseCursor::ZoomIn |
+            MouseCursor::ZoomOut => "arrowCursor",
+        };
+        let sel = Sel::register(cursor_name);
+        let cls = Class::get("NSCursor").unwrap();
+        unsafe {
+            use objc::Message;
+            let cursor: id = cls.send_message(sel, ()).unwrap();
+            let _: () = msg_send![cursor, set];
+        }
+    }
+
+    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+        let cls = Class::get("NSCursor").unwrap();
+
+        // TODO: Check for errors.
+        match state {
+            CursorState::Normal => {
+                let _: () = unsafe { msg_send![cls, unhide] };
+                let _: i32 = unsafe { CGAssociateMouseAndMouseCursorPosition(true) };
+                Ok(())
+            },
+            CursorState::Hide => {
+                let _: () = unsafe { msg_send![cls, hide] };
+                Ok(())
+            },
+            CursorState::Grab => {
+                let _: i32 = unsafe { CGAssociateMouseAndMouseCursorPosition(false) };
+                Ok(())
+            }
+        }
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+        unsafe {
+            NSWindow::backingScaleFactor(*self.window) as f32
+        }
+    }
+
+    #[inline]
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        let (window_x, window_y) = self.get_position().unwrap_or((0, 0));
+        let (cursor_x, cursor_y) = (window_x + x, window_y + y);
+
+        unsafe {
+            // TODO: Check for errors.
+            let _ = CGWarpMouseCursorPosition(appkit::CGPoint {
+                x: cursor_x as appkit::CGFloat,
+                y: cursor_y as appkit::CGFloat,
+            });
+            let _ = CGAssociateMouseAndMouseCursorPosition(true);
+        }
+
+        Ok(())
+    }
+}
+
+// Convert the `cocoa::base::id` associated with a window to a usize to use as a unique identifier
+// for the window.
+pub fn get_window_id(window_cocoa_id: cocoa::base::id) -> Id {
+    Id(window_cocoa_id as *const objc::runtime::Object as usize)
+}
+
+unsafe fn nswindow_set_min_dimensions<V: NSWindow + Copy>(
+    window: V, min_width: f64, min_height: f64)
+{
+    window.setMinSize_(NSSize {
+        width: min_width,
+        height: min_height,
+    });
+    // If necessary, resize the window to match constraint
+    let mut current_rect = NSWindow::frame(window);
+    if current_rect.size.width < min_width {
+        current_rect.size.width = min_width;
+        window.setFrame_display_(current_rect, 0)
+    }
+    if current_rect.size.height < min_height {
+        // The origin point of a rectangle is at its bottom left in Cocoa. To
+        // ensure the window's top-left point remains the same:
+        current_rect.origin.y +=
+            current_rect.size.height - min_height;
+
+        current_rect.size.height = min_height;
+        window.setFrame_display_(current_rect, 0)
+    }
+}
+
+unsafe fn nswindow_set_max_dimensions<V: NSWindow + Copy>(
+    window: V, max_width: f64, max_height: f64)
+{
+    window.setMaxSize_(NSSize {
+        width: max_width,
+        height: max_height,
+    });
+    // If necessary, resize the window to match constraint
+    let mut current_rect = NSWindow::frame(window);
+    if current_rect.size.width > max_width {
+        current_rect.size.width = max_width;
+        window.setFrame_display_(current_rect, 0)
+    }
+    if current_rect.size.height > max_height {
+        // The origin point of a rectangle is at its bottom left in
+        // Cocoa. To ensure the window's top-left point remains the
+        // same:
+        current_rect.origin.y +=
+            current_rect.size.height - max_height;
+
+        current_rect.size.height = max_height;
+        window.setFrame_display_(current_rect, 0)
+    }
+}
+
+pub struct IdRef(id);
+
+impl IdRef {
+    fn new(i: id) -> IdRef {
+        IdRef(i)
+    }
+
+    #[allow(dead_code)]
+    fn retain(i: id) -> IdRef {
+        if i != nil {
+            let _: id = unsafe { msg_send![i, retain] };
+        }
+        IdRef(i)
+    }
+
+    fn non_nil(self) -> Option<IdRef> {
+        if self.0 == nil { None } else { Some(self) }
+    }
+}
+
+impl Drop for IdRef {
+    fn drop(&mut self) {
+        if self.0 != nil {
+            let _: () = unsafe { msg_send![self.0, release] };
+        }
+    }
+}
+
+impl Deref for IdRef {
+    type Target = id;
+    fn deref<'a>(&'a self) -> &'a id {
+        &self.0
+    }
+}
+
+impl Clone for IdRef {
+    fn clone(&self) -> IdRef {
+        if self.0 != nil {
+            let _: id = unsafe { msg_send![self.0, retain] };
+        }
+        IdRef(self.0)
+    }
+}

src/platform/mod.rs

@@ -1,25 +1,22 @@
-//! Contains traits with platform-specific methods in them.
-//!
-//! Contains the follow OS-specific modules:
-//!
-//!  - `android`
-//!  - `ios`
-//!  - `macos`
-//!  - `unix`
-//!  - `windows`
-//!  - `web`
-//!
-//! And the following platform-specific module:
-//!
-//! - `desktop` (available on `windows`, `unix`, and `macos`)
-//!
-//! However only the module corresponding to the platform you're compiling to will be available.
+pub use self::platform::*;
 
-pub mod android;
-pub mod ios;
-pub mod macos;
-pub mod unix;
-pub mod windows;
+#[cfg(target_os = "windows")]
+#[path="windows/mod.rs"]
+mod platform;
+#[cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "openbsd"))]
+#[path="linux/mod.rs"]
+mod platform;
+#[cfg(target_os = "macos")]
+#[path="macos/mod.rs"]
+mod platform;
+#[cfg(target_os = "android")]
+#[path="android/mod.rs"]
+mod platform;
+#[cfg(target_os = "ios")]
+#[path="ios/mod.rs"]
+mod platform;
 
-pub mod desktop;
-pub mod web;
+#[cfg(all(not(target_os = "ios"), not(target_os = "windows"), not(target_os = "linux"),
+  not(target_os = "macos"), not(target_os = "android"), not(target_os = "dragonfly"),
+  not(target_os = "freebsd"), not(target_os = "openbsd")))]
+use this_platform_is_not_supported;

src/platform/unix.rs

@@ -1,463 +0,0 @@
-#![cfg(any(target_os = "linux", target_os = "dragonfly", target_os = "freebsd", target_os = "netbsd", target_os = "openbsd"))]
-
-use std::{os::raw, ptr, sync::Arc};
-
-use smithay_client_toolkit::window::{ButtonState, Theme};
-
-use crate::{
-    dpi::LogicalSize,
-    event_loop::{EventLoop, EventLoopWindowTarget},
-    monitor::MonitorHandle,
-    window::{Window, WindowBuilder},
-};
-
-use crate::platform_impl::{
-    x11::{ffi::XVisualInfo, XConnection},
-    EventLoop as LinuxEventLoop, EventLoopWindowTarget as LinuxEventLoopWindowTarget,
-    Window as LinuxWindow,
-};
-
-// TODO: stupid hack so that glutin can do its work
-#[doc(hidden)]
-pub use crate::platform_impl::x11;
-
-pub use crate::platform_impl::{x11::util::WindowType as XWindowType, XNotSupported};
-
-/// Theme for wayland client side decorations
-///
-/// Colors must be in ARGB8888 format
-pub struct WaylandTheme {
-    /// Primary color when the window is focused
-    pub primary_active: [u8; 4],
-    /// Primary color when the window is unfocused
-    pub primary_inactive: [u8; 4],
-    /// Secondary color when the window is focused
-    pub secondary_active: [u8; 4],
-    /// Secondary color when the window is unfocused
-    pub secondary_inactive: [u8; 4],
-    /// Close button color when hovered over
-    pub close_button_hovered: [u8; 4],
-    /// Close button color
-    pub close_button: [u8; 4],
-    /// Close button color when hovered over
-    pub maximize_button_hovered: [u8; 4],
-    /// Maximize button color
-    pub maximize_button: [u8; 4],
-    /// Minimize button color when hovered over
-    pub minimize_button_hovered: [u8; 4],
-    /// Minimize button color
-    pub minimize_button: [u8; 4],
-}
-
-struct WaylandThemeObject(WaylandTheme);
-
-impl Theme for WaylandThemeObject {
-    fn get_primary_color(&self, active: bool) -> [u8; 4] {
-        if active {
-            self.0.primary_active
-        } else {
-            self.0.primary_inactive
-        }
-    }
-
-    // Used for division line
-    fn get_secondary_color(&self, active: bool) -> [u8; 4] {
-        if active {
-            self.0.secondary_active
-        } else {
-            self.0.secondary_inactive
-        }
-    }
-
-    fn get_close_button_color(&self, state: ButtonState) -> [u8; 4] {
-        match state {
-            ButtonState::Hovered => self.0.close_button_hovered,
-            _ => self.0.close_button,
-        }
-    }
-
-    fn get_maximize_button_color(&self, state: ButtonState) -> [u8; 4] {
-        match state {
-            ButtonState::Hovered => self.0.maximize_button_hovered,
-            _ => self.0.maximize_button,
-        }
-    }
-
-    fn get_minimize_button_color(&self, state: ButtonState) -> [u8; 4] {
-        match state {
-            ButtonState::Hovered => self.0.minimize_button_hovered,
-            _ => self.0.minimize_button,
-        }
-    }
-}
-
-/// Additional methods on `EventLoopWindowTarget` that are specific to Unix.
-pub trait EventLoopWindowTargetExtUnix {
-    /// True if the `EventLoopWindowTarget` uses Wayland.
-    fn is_wayland(&self) -> bool;
-    ///
-    /// True if the `EventLoopWindowTarget` uses X11.
-    fn is_x11(&self) -> bool;
-
-    #[doc(hidden)]
-    fn xlib_xconnection(&self) -> Option<Arc<XConnection>>;
-
-    /// Returns a pointer to the `wl_display` object of wayland that is used by this
-    /// `EventLoopWindowTarget`.
-    ///
-    /// Returns `None` if the `EventLoop` doesn't use wayland (if it uses xlib for example).
-    ///
-    /// The pointer will become invalid when the winit `EventLoop` is destroyed.
-    fn wayland_display(&self) -> Option<*mut raw::c_void>;
-}
-
-impl<T> EventLoopWindowTargetExtUnix for EventLoopWindowTarget<T> {
-    #[inline]
-    fn is_wayland(&self) -> bool {
-        self.p.is_wayland()
-    }
-
-    #[inline]
-    fn is_x11(&self) -> bool {
-        !self.p.is_wayland()
-    }
-
-    #[inline]
-    #[doc(hidden)]
-    fn xlib_xconnection(&self) -> Option<Arc<XConnection>> {
-        match self.p {
-            LinuxEventLoopWindowTarget::X(ref e) => Some(e.x_connection().clone()),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    fn wayland_display(&self) -> Option<*mut raw::c_void> {
-        match self.p {
-            LinuxEventLoopWindowTarget::Wayland(ref p) => {
-                Some(p.display().get_display_ptr() as *mut _)
-            }
-            _ => None,
-        }
-    }
-}
-
-/// Additional methods on `EventLoop` that are specific to Unix.
-pub trait EventLoopExtUnix {
-    /// Builds a new `EventLoop` that is forced to use X11.
-    ///
-    /// # Panics
-    ///
-    /// If called outside the main thread. To initialize an X11 event loop outside
-    /// the main thread, use [`new_x11_any_thread`](#tymethod.new_x11_any_thread).
-    fn new_x11() -> Result<Self, XNotSupported>
-    where
-        Self: Sized;
-
-    /// Builds a new `EventLoop` that is forced to use Wayland.
-    ///
-    /// # Panics
-    ///
-    /// If called outside the main thread. To initialize a Wayland event loop outside
-    /// the main thread, use [`new_wayland_any_thread`](#tymethod.new_wayland_any_thread).
-    fn new_wayland() -> Self
-    where
-        Self: Sized;
-
-    /// Builds a new `EventLoop` on any thread.
-    ///
-    /// This method bypasses the cross-platform compatibility requirement
-    /// that `EventLoop` be created on the main thread.
-    fn new_any_thread() -> Self
-    where
-        Self: Sized;
-
-    /// Builds a new X11 `EventLoop` on any thread.
-    ///
-    /// This method bypasses the cross-platform compatibility requirement
-    /// that `EventLoop` be created on the main thread.
-    fn new_x11_any_thread() -> Result<Self, XNotSupported>
-    where
-        Self: Sized;
-
-    /// Builds a new Wayland `EventLoop` on any thread.
-    ///
-    /// This method bypasses the cross-platform compatibility requirement
-    /// that `EventLoop` be created on the main thread.
-    fn new_wayland_any_thread() -> Self
-    where
-        Self: Sized;
-}
-
-fn wrap_ev<T>(event_loop: LinuxEventLoop<T>) -> EventLoop<T> {
-    EventLoop {
-        event_loop,
-        _marker: std::marker::PhantomData,
-    }
-}
-
-impl<T> EventLoopExtUnix for EventLoop<T> {
-    #[inline]
-    fn new_any_thread() -> Self {
-        wrap_ev(LinuxEventLoop::new_any_thread())
-    }
-
-    #[inline]
-    fn new_x11_any_thread() -> Result<Self, XNotSupported> {
-        LinuxEventLoop::new_x11_any_thread().map(wrap_ev)
-    }
-
-    #[inline]
-    fn new_wayland_any_thread() -> Self {
-        wrap_ev(
-            LinuxEventLoop::new_wayland_any_thread()
-                // TODO: propagate
-                .expect("failed to open Wayland connection"),
-        )
-    }
-
-    #[inline]
-    fn new_x11() -> Result<Self, XNotSupported> {
-        LinuxEventLoop::new_x11().map(wrap_ev)
-    }
-
-    #[inline]
-    fn new_wayland() -> Self {
-        wrap_ev(
-            LinuxEventLoop::new_wayland()
-                // TODO: propagate
-                .expect("failed to open Wayland connection"),
-        )
-    }
-}
-
-/// Additional methods on `Window` that are specific to Unix.
-pub trait WindowExtUnix {
-    /// Returns the ID of the `Window` xlib object that is used by this window.
-    ///
-    /// Returns `None` if the window doesn't use xlib (if it uses wayland for example).
-    fn xlib_window(&self) -> Option<raw::c_ulong>;
-
-    /// Returns a pointer to the `Display` object of xlib that is used by this window.
-    ///
-    /// Returns `None` if the window doesn't use xlib (if it uses wayland for example).
-    ///
-    /// The pointer will become invalid when the glutin `Window` is destroyed.
-    fn xlib_display(&self) -> Option<*mut raw::c_void>;
-
-    fn xlib_screen_id(&self) -> Option<raw::c_int>;
-
-    #[doc(hidden)]
-    fn xlib_xconnection(&self) -> Option<Arc<XConnection>>;
-
-    /// Set window urgency hint (`XUrgencyHint`). Only relevant on X.
-    fn set_urgent(&self, is_urgent: bool);
-
-    /// This function returns the underlying `xcb_connection_t` of an xlib `Display`.
-    ///
-    /// Returns `None` if the window doesn't use xlib (if it uses wayland for example).
-    ///
-    /// The pointer will become invalid when the glutin `Window` is destroyed.
-    fn xcb_connection(&self) -> Option<*mut raw::c_void>;
-
-    /// Returns a pointer to the `wl_surface` object of wayland that is used by this window.
-    ///
-    /// Returns `None` if the window doesn't use wayland (if it uses xlib for example).
-    ///
-    /// The pointer will become invalid when the glutin `Window` is destroyed.
-    fn wayland_surface(&self) -> Option<*mut raw::c_void>;
-
-    /// Returns a pointer to the `wl_display` object of wayland that is used by this window.
-    ///
-    /// Returns `None` if the window doesn't use wayland (if it uses xlib for example).
-    ///
-    /// The pointer will become invalid when the glutin `Window` is destroyed.
-    fn wayland_display(&self) -> Option<*mut raw::c_void>;
-
-    /// Sets the color theme of the client side window decorations on wayland
-    fn set_wayland_theme(&self, theme: WaylandTheme);
-
-    /// Check if the window is ready for drawing
-    ///
-    /// It is a remnant of a previous implementation detail for the
-    /// wayland backend, and is no longer relevant.
-    ///
-    /// Always return true.
-    #[deprecated]
-    fn is_ready(&self) -> bool;
-}
-
-impl WindowExtUnix for Window {
-    #[inline]
-    fn xlib_window(&self) -> Option<raw::c_ulong> {
-        match self.window {
-            LinuxWindow::X(ref w) => Some(w.xlib_window()),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    fn xlib_display(&self) -> Option<*mut raw::c_void> {
-        match self.window {
-            LinuxWindow::X(ref w) => Some(w.xlib_display()),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    fn xlib_screen_id(&self) -> Option<raw::c_int> {
-        match self.window {
-            LinuxWindow::X(ref w) => Some(w.xlib_screen_id()),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    #[doc(hidden)]
-    fn xlib_xconnection(&self) -> Option<Arc<XConnection>> {
-        match self.window {
-            LinuxWindow::X(ref w) => Some(w.xlib_xconnection()),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    fn set_urgent(&self, is_urgent: bool) {
-        if let LinuxWindow::X(ref w) = self.window {
-            w.set_urgent(is_urgent);
-        }
-    }
-
-    #[inline]
-    fn xcb_connection(&self) -> Option<*mut raw::c_void> {
-        match self.window {
-            LinuxWindow::X(ref w) => Some(w.xcb_connection()),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    fn wayland_surface(&self) -> Option<*mut raw::c_void> {
-        match self.window {
-            LinuxWindow::Wayland(ref w) => Some(w.surface().as_ref().c_ptr() as *mut _),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    fn wayland_display(&self) -> Option<*mut raw::c_void> {
-        match self.window {
-            LinuxWindow::Wayland(ref w) => Some(w.display().as_ref().c_ptr() as *mut _),
-            _ => None,
-        }
-    }
-
-    #[inline]
-    fn set_wayland_theme(&self, theme: WaylandTheme) {
-        match self.window {
-            LinuxWindow::Wayland(ref w) => w.set_theme(WaylandThemeObject(theme)),
-            _ => {}
-        }
-    }
-
-    #[inline]
-    fn is_ready(&self) -> bool {
-        true
-    }
-}
-
-/// Additional methods on `WindowBuilder` that are specific to Unix.
-pub trait WindowBuilderExtUnix {
-    fn with_x11_visual<T>(self, visual_infos: *const T) -> Self;
-    fn with_x11_screen(self, screen_id: i32) -> Self;
-
-    /// Build window with `WM_CLASS` hint; defaults to the name of the binary. Only relevant on X11.
-    fn with_class(self, class: String, instance: String) -> Self;
-    /// Build window with override-redirect flag; defaults to false. Only relevant on X11.
-    fn with_override_redirect(self, override_redirect: bool) -> Self;
-    /// Build window with `_NET_WM_WINDOW_TYPE` hints; defaults to `Normal`. Only relevant on X11.
-    fn with_x11_window_type(self, x11_window_type: Vec<XWindowType>) -> Self;
-    /// Build window with `_GTK_THEME_VARIANT` hint set to the specified value. Currently only relevant on X11.
-    fn with_gtk_theme_variant(self, variant: String) -> Self;
-    /// Build window with resize increment hint. Only implemented on X11.
-    fn with_resize_increments(self, increments: LogicalSize) -> Self;
-    /// Build window with base size hint. Only implemented on X11.
-    fn with_base_size(self, base_size: LogicalSize) -> Self;
-
-    /// Build window with a given application ID. It should match the `.desktop` file distributed with
-    /// your program. Only relevant on Wayland.
-    ///
-    /// For details about application ID conventions, see the
-    /// [Desktop Entry Spec](https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html#desktop-file-id)
-    fn with_app_id(self, app_id: String) -> Self;
-}
-
-impl WindowBuilderExtUnix for WindowBuilder {
-    #[inline]
-    fn with_x11_visual<T>(mut self, visual_infos: *const T) -> Self {
-        self.platform_specific.visual_infos =
-            Some(unsafe { ptr::read(visual_infos as *const XVisualInfo) });
-        self
-    }
-
-    #[inline]
-    fn with_x11_screen(mut self, screen_id: i32) -> Self {
-        self.platform_specific.screen_id = Some(screen_id);
-        self
-    }
-
-    #[inline]
-    fn with_class(mut self, instance: String, class: String) -> Self {
-        self.platform_specific.class = Some((instance, class));
-        self
-    }
-
-    #[inline]
-    fn with_override_redirect(mut self, override_redirect: bool) -> Self {
-        self.platform_specific.override_redirect = override_redirect;
-        self
-    }
-
-    #[inline]
-    fn with_x11_window_type(mut self, x11_window_types: Vec<XWindowType>) -> Self {
-        self.platform_specific.x11_window_types = x11_window_types;
-        self
-    }
-
-    #[inline]
-    fn with_gtk_theme_variant(mut self, variant: String) -> Self {
-        self.platform_specific.gtk_theme_variant = Some(variant);
-        self
-    }
-
-    #[inline]
-    fn with_resize_increments(mut self, increments: LogicalSize) -> Self {
-        self.platform_specific.resize_increments = Some(increments.into());
-        self
-    }
-
-    #[inline]
-    fn with_base_size(mut self, base_size: LogicalSize) -> Self {
-        self.platform_specific.base_size = Some(base_size.into());
-        self
-    }
-
-    #[inline]
-    fn with_app_id(mut self, app_id: String) -> Self {
-        self.platform_specific.app_id = Some(app_id);
-        self
-    }
-}
-
-/// Additional methods on `MonitorHandle` that are specific to Linux.
-pub trait MonitorHandleExtUnix {
-    /// Returns the inner identifier of the monitor.
-    fn native_id(&self) -> u32;
-}
-
-impl MonitorHandleExtUnix for MonitorHandle {
-    #[inline]
-    fn native_id(&self) -> u32 {
-        self.inner.native_identifier()
-    }
-}

src/platform/web.rs

@@ -1,22 +0,0 @@
-#![cfg(target_arch = "wasm32")]
-
-//! The web target does not automatically insert the canvas element object into the web page, to
-//! allow end users to determine how the page should be laid out. Use the `WindowExtStdweb` or
-//! `WindowExtWebSys` traits (depending on your web backend) to retrieve the canvas from the
-//! Window.
-
-#[cfg(feature = "stdweb")]
-use stdweb::web::html_element::CanvasElement;
-
-#[cfg(feature = "stdweb")]
-pub trait WindowExtStdweb {
-    fn canvas(&self) -> CanvasElement;
-}
-
-#[cfg(feature = "web-sys")]
-use web_sys::HtmlCanvasElement;
-
-#[cfg(feature = "web-sys")]
-pub trait WindowExtWebSys {
-    fn canvas(&self) -> HtmlCanvasElement;
-}

src/platform/windows.rs

@@ -1,197 +0,0 @@
-#![cfg(target_os = "windows")]
-
-use std::os::raw::c_void;
-
-use libc;
-use winapi::shared::windef::HWND;
-
-use crate::{
-    event::device::{GamepadHandle, KeyboardId, MouseId},
-    event_loop::EventLoop,
-    monitor::MonitorHandle,
-    platform_impl::EventLoop as WindowsEventLoop,
-    window::{Icon, Window, WindowBuilder},
-};
-
-/// Additional methods on `EventLoop` that are specific to Windows.
-pub trait EventLoopExtWindows {
-    /// Creates an event loop off of the main thread.
-    ///
-    /// # `Window` caveats
-    ///
-    /// Note that any `Window` created on the new thread will be destroyed when the thread
-    /// terminates. Attempting to use a `Window` after its parent thread terminates has
-    /// unspecified, although explicitly not undefined, behavior.
-    fn new_any_thread() -> Self
-    where
-        Self: Sized;
-
-    /// By default, winit on Windows will attempt to enable process-wide DPI awareness. If that's
-    /// undesirable, you can create an `EventLoop` using this function instead.
-    fn new_dpi_unaware() -> Self
-    where
-        Self: Sized;
-
-    /// Creates a DPI-unaware event loop off of the main thread.
-    ///
-    /// The `Window` caveats in [`new_any_thread`](EventLoopExtWindows::new_any_thread) also apply here.
-    fn new_dpi_unaware_any_thread() -> Self
-    where
-        Self: Sized;
-}
-
-impl<T> EventLoopExtWindows for EventLoop<T> {
-    #[inline]
-    fn new_any_thread() -> Self {
-        EventLoop {
-            event_loop: WindowsEventLoop::new_any_thread(),
-            _marker: ::std::marker::PhantomData,
-        }
-    }
-
-    #[inline]
-    fn new_dpi_unaware() -> Self {
-        EventLoop {
-            event_loop: WindowsEventLoop::new_dpi_unaware(),
-            _marker: ::std::marker::PhantomData,
-        }
-    }
-
-    #[inline]
-    fn new_dpi_unaware_any_thread() -> Self {
-        EventLoop {
-            event_loop: WindowsEventLoop::new_dpi_unaware_any_thread(),
-            _marker: ::std::marker::PhantomData,
-        }
-    }
-}
-
-/// Additional methods on `Window` that are specific to Windows.
-pub trait WindowExtWindows {
-    /// Returns the HINSTANCE of the window
-    fn hinstance(&self) -> *mut libc::c_void;
-    /// Returns the native handle that is used by this window.
-    ///
-    /// The pointer will become invalid when the native window was destroyed.
-    fn hwnd(&self) -> *mut libc::c_void;
-
-    /// This sets `ICON_BIG`. A good ceiling here is 256x256.
-    fn set_taskbar_icon(&self, taskbar_icon: Option<Icon>);
-}
-
-impl WindowExtWindows for Window {
-    #[inline]
-    fn hinstance(&self) -> *mut libc::c_void {
-        self.window.hinstance() as *mut _
-    }
-
-    #[inline]
-    fn hwnd(&self) -> *mut libc::c_void {
-        self.window.hwnd() as *mut _
-    }
-
-    #[inline]
-    fn set_taskbar_icon(&self, taskbar_icon: Option<Icon>) {
-        self.window.set_taskbar_icon(taskbar_icon)
-    }
-}
-
-/// Additional methods on `WindowBuilder` that are specific to Windows.
-pub trait WindowBuilderExtWindows {
-    /// Sets a parent to the window to be created.
-    fn with_parent_window(self, parent: HWND) -> WindowBuilder;
-
-    /// This sets `ICON_BIG`. A good ceiling here is 256x256.
-    fn with_taskbar_icon(self, taskbar_icon: Option<Icon>) -> WindowBuilder;
-
-    /// This sets `WS_EX_NOREDIRECTIONBITMAP`.
-    fn with_no_redirection_bitmap(self, flag: bool) -> WindowBuilder;
-}
-
-impl WindowBuilderExtWindows for WindowBuilder {
-    #[inline]
-    fn with_parent_window(mut self, parent: HWND) -> WindowBuilder {
-        self.platform_specific.parent = Some(parent);
-        self
-    }
-
-    #[inline]
-    fn with_taskbar_icon(mut self, taskbar_icon: Option<Icon>) -> WindowBuilder {
-        self.platform_specific.taskbar_icon = taskbar_icon;
-        self
-    }
-
-    #[inline]
-    fn with_no_redirection_bitmap(mut self, flag: bool) -> WindowBuilder {
-        self.platform_specific.no_redirection_bitmap = flag;
-        self
-    }
-}
-
-/// Additional methods on `MonitorHandle` that are specific to Windows.
-pub trait MonitorHandleExtWindows {
-    /// Returns the name of the monitor adapter specific to the Win32 API.
-    fn native_id(&self) -> String;
-
-    /// Returns the handle of the monitor - `HMONITOR`.
-    fn hmonitor(&self) -> *mut c_void;
-}
-
-impl MonitorHandleExtWindows for MonitorHandle {
-    #[inline]
-    fn native_id(&self) -> String {
-        self.inner.native_identifier()
-    }
-
-    #[inline]
-    fn hmonitor(&self) -> *mut c_void {
-        self.inner.hmonitor() as *mut _
-    }
-}
-
-/// Additional methods on device types that are specific to Windows.
-pub trait DeviceExtWindows {
-    /// Returns an identifier that persistently refers to this specific device.
-    ///
-    /// Will return `None` if the device is no longer available.
-    fn persistent_identifier(&self) -> Option<String>;
-
-    /// Returns the handle of the device - `HANDLE`.
-    fn handle(&self) -> *mut c_void;
-}
-
-impl DeviceExtWindows for MouseId {
-    #[inline]
-    fn persistent_identifier(&self) -> Option<String> {
-        self.0.persistent_identifier()
-    }
-
-    #[inline]
-    fn handle(&self) -> *mut c_void {
-        self.0.handle() as _
-    }
-}
-
-impl DeviceExtWindows for KeyboardId {
-    #[inline]
-    fn persistent_identifier(&self) -> Option<String> {
-        self.0.persistent_identifier()
-    }
-
-    #[inline]
-    fn handle(&self) -> *mut c_void {
-        self.0.handle() as _
-    }
-}
-
-impl DeviceExtWindows for GamepadHandle {
-    #[inline]
-    fn persistent_identifier(&self) -> Option<String> {
-        self.0.persistent_identifier()
-    }
-
-    #[inline]
-    fn handle(&self) -> *mut c_void {
-        self.0.handle() as _
-    }
-}

src/platform/windows/callback.rs

@@ -0,0 +1,407 @@
+use std::mem;
+use std::ptr;
+use std::cell::RefCell;
+use std::sync::mpsc::Sender;
+use std::sync::{Arc, Mutex};
+use std::ffi::OsString;
+use std::os::windows::ffi::OsStringExt;
+
+use CursorState;
+use WindowEvent as Event;
+use events::ModifiersState;
+use super::event;
+use super::WindowState;
+
+use user32;
+use shell32;
+use winapi;
+
+/// There's no parameters passed to the callback function, so it needs to get
+/// its context (the HWND, the Sender for events, etc.) stashed in
+/// a thread-local variable.
+thread_local!(pub static CONTEXT_STASH: RefCell<Option<ThreadLocalData>> = RefCell::new(None));
+
+pub struct ThreadLocalData {
+    pub win: winapi::HWND,
+    pub sender: Sender<Event>,
+    pub window_state: Arc<Mutex<WindowState>>,
+    pub mouse_in_window: bool
+}
+
+/// Equivalent to the windows api [MINMAXINFO](https://msdn.microsoft.com/en-us/library/windows/desktop/ms632605%28v=vs.85%29.aspx)
+/// struct. Used because winapi-rs doesn't have this declared.
+#[repr(C)]
+#[allow(dead_code)]
+struct MinMaxInfo {
+    reserved: winapi::POINT, // Do not use/change
+    max_size: winapi::POINT,
+    max_position: winapi::POINT,
+    min_track: winapi::POINT,
+    max_track: winapi::POINT
+}
+
+/// Checks that the window is the good one, and if so send the event to it.
+fn send_event(input_window: winapi::HWND, event: Event) {
+    CONTEXT_STASH.with(|context_stash| {
+        let context_stash = context_stash.borrow();
+        let stored = match *context_stash {
+            None => return,
+            Some(ref v) => v
+        };
+
+        let &ThreadLocalData { ref win, ref sender, .. } = stored;
+
+        if win != &input_window {
+            return;
+        }
+
+        sender.send(event).ok();  // ignoring if closed
+    });
+}
+
+/// This is the callback that is called by `DispatchMessage` in the events loop.
+///
+/// Returning 0 tells the Win32 API that the message has been processed.
+// FIXME: detect WM_DWMCOMPOSITIONCHANGED and call DwmEnableBlurBehindWindow if necessary
+pub unsafe extern "system" fn callback(window: winapi::HWND, msg: winapi::UINT,
+                                       wparam: winapi::WPARAM, lparam: winapi::LPARAM)
+                                       -> winapi::LRESULT
+{
+    match msg {
+        winapi::WM_DESTROY => {
+            use events::WindowEvent::Closed;
+
+            CONTEXT_STASH.with(|context_stash| {
+                let context_stash = context_stash.borrow();
+                let stored = match *context_stash {
+                    None => return,
+                    Some(ref v) => v
+                };
+
+                let &ThreadLocalData { ref win, .. } = stored;
+
+                if win == &window {
+                    user32::PostQuitMessage(0);
+                }
+            });
+
+            send_event(window, Closed);
+            0
+        },
+
+        winapi::WM_ERASEBKGND => {
+            1
+        },
+
+        winapi::WM_SIZE => {
+            use events::WindowEvent::Resized;
+            let w = winapi::LOWORD(lparam as winapi::DWORD) as u32;
+            let h = winapi::HIWORD(lparam as winapi::DWORD) as u32;
+            send_event(window, Resized(w, h));
+            0
+        },
+
+        winapi::WM_MOVE => {
+            use events::WindowEvent::Moved;
+            let x = winapi::LOWORD(lparam as winapi::DWORD) as i32;
+            let y = winapi::HIWORD(lparam as winapi::DWORD) as i32;
+            send_event(window, Moved(x, y));
+            0
+        },
+
+        winapi::WM_CHAR => {
+            use std::mem;
+            use events::WindowEvent::ReceivedCharacter;
+            let chr: char = mem::transmute(wparam as u32);
+            send_event(window, ReceivedCharacter(chr));
+            0
+        },
+
+        // Prevents default windows menu hotkeys playing unwanted
+        // "ding" sounds. Alternatively could check for WM_SYSCOMMAND
+        // with wparam being SC_KEYMENU, but this may prevent some
+        // other unwanted default hotkeys as well.
+        winapi::WM_SYSCHAR => {
+            0
+        }
+
+        winapi::WM_MOUSEMOVE => {
+            use events::WindowEvent::{MouseEntered, MouseMoved};
+            let mouse_outside_window = CONTEXT_STASH.with(|context_stash| {
+                let mut context_stash = context_stash.borrow_mut();
+                if let Some(context_stash) = context_stash.as_mut() {
+                    if !context_stash.mouse_in_window {
+                        context_stash.mouse_in_window = true;
+                        return true;
+                    }
+                }
+
+                false
+            });
+
+            if mouse_outside_window {
+                send_event(window, MouseEntered);
+                
+                // Calling TrackMouseEvent in order to receive mouse leave events.
+                user32::TrackMouseEvent(&mut winapi::TRACKMOUSEEVENT {
+                    cbSize: mem::size_of::<winapi::TRACKMOUSEEVENT>() as winapi::DWORD,
+                    dwFlags: winapi::TME_LEAVE,
+                    hwndTrack: window,
+                    dwHoverTime: winapi::HOVER_DEFAULT,
+                });
+            }
+
+            let x = winapi::GET_X_LPARAM(lparam) as i32;
+            let y = winapi::GET_Y_LPARAM(lparam) as i32;
+
+            send_event(window, MouseMoved(x, y));
+
+            0
+        },
+
+        winapi::WM_MOUSELEAVE => {
+            use events::WindowEvent::MouseLeft;
+            let mouse_in_window = CONTEXT_STASH.with(|context_stash| {
+                let mut context_stash = context_stash.borrow_mut();
+                if let Some(context_stash) = context_stash.as_mut() {
+                    if context_stash.mouse_in_window {
+                        context_stash.mouse_in_window = false;
+                        return true;
+                    }
+                }
+
+                false
+            });
+
+            if mouse_in_window {
+                send_event(window, MouseLeft);
+            }
+
+            0
+        },
+
+        winapi::WM_MOUSEWHEEL => {
+            use events::WindowEvent::MouseWheel;
+            use events::MouseScrollDelta::LineDelta;
+            use events::TouchPhase;
+
+            let value = (wparam >> 16) as i16;
+            let value = value as i32;
+            let value = value as f32 / winapi::WHEEL_DELTA as f32;
+
+            send_event(window, MouseWheel(LineDelta(0.0, value), TouchPhase::Moved));
+
+            0
+        },
+
+        winapi::WM_KEYDOWN | winapi::WM_SYSKEYDOWN => {
+            use events::WindowEvent::KeyboardInput;
+            use events::ElementState::Pressed;
+            if msg == winapi::WM_SYSKEYDOWN && wparam as i32 == winapi::VK_F4 {
+                user32::DefWindowProcW(window, msg, wparam, lparam)
+            } else {
+                let (scancode, vkey) = event::vkeycode_to_element(wparam, lparam);
+                send_event(window, KeyboardInput(Pressed, scancode, vkey, event::get_key_mods()));
+                0
+            }
+        },
+
+        winapi::WM_KEYUP | winapi::WM_SYSKEYUP => {
+            use events::WindowEvent::KeyboardInput;
+            use events::ElementState::Released;
+            let (scancode, vkey) = event::vkeycode_to_element(wparam, lparam);
+            send_event(window, KeyboardInput(Released, scancode, vkey, event::get_key_mods()));
+            0
+        },
+
+        winapi::WM_LBUTTONDOWN => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Left;
+            use events::ElementState::Pressed;
+            send_event(window, MouseInput(Pressed, Left));
+            0
+        },
+
+        winapi::WM_LBUTTONUP => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Left;
+            use events::ElementState::Released;
+            send_event(window, MouseInput(Released, Left));
+            0
+        },
+
+        winapi::WM_RBUTTONDOWN => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Right;
+            use events::ElementState::Pressed;
+            send_event(window, MouseInput(Pressed, Right));
+            0
+        },
+
+        winapi::WM_RBUTTONUP => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Right;
+            use events::ElementState::Released;
+            send_event(window, MouseInput(Released, Right));
+            0
+        },
+
+        winapi::WM_MBUTTONDOWN => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Middle;
+            use events::ElementState::Pressed;
+            send_event(window, MouseInput(Pressed, Middle));
+            0
+        },
+
+        winapi::WM_MBUTTONUP => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Middle;
+            use events::ElementState::Released;
+            send_event(window, MouseInput(Released, Middle));
+            0
+        },
+
+        winapi::WM_XBUTTONDOWN => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Other;
+            use events::ElementState::Pressed;
+            let xbutton = winapi::HIWORD(wparam as winapi::DWORD) as winapi::c_int; // waiting on PR for winapi to add GET_XBUTTON_WPARAM
+            send_event(window, MouseInput(Pressed, Other(xbutton as u8)));
+            0
+        },
+
+        winapi::WM_XBUTTONUP => {
+            use events::WindowEvent::MouseInput;
+            use events::MouseButton::Other;
+            use events::ElementState::Released;
+            let xbutton = winapi::HIWORD(wparam as winapi::DWORD) as winapi::c_int; 
+            send_event(window, MouseInput(Released, Other(xbutton as u8)));
+            0
+        },
+
+        winapi::WM_INPUT => {
+            let mut data: winapi::RAWINPUT = mem::uninitialized();
+            let mut data_size = mem::size_of::<winapi::RAWINPUT>() as winapi::UINT;
+            user32::GetRawInputData(mem::transmute(lparam), winapi::RID_INPUT,
+                                    mem::transmute(&mut data), &mut data_size,
+                                    mem::size_of::<winapi::RAWINPUTHEADER>() as winapi::UINT);
+
+            if data.header.dwType == winapi::RIM_TYPEMOUSE {
+                let _x = data.mouse.lLastX;  // FIXME: this is not always the relative movement
+                let _y = data.mouse.lLastY;
+                // TODO:
+                //send_event(window, Event::MouseRawMovement { x: x, y: y });
+
+                0
+
+            } else {
+                user32::DefWindowProcW(window, msg, wparam, lparam)
+            }
+        },
+
+        winapi::WM_SETFOCUS => {
+            use events::WindowEvent::Focused;
+            send_event(window, Focused(true));
+            0
+        },
+
+        winapi::WM_KILLFOCUS => {
+            use events::WindowEvent::Focused;
+            send_event(window, Focused(false));
+            0
+        },
+
+        winapi::WM_SETCURSOR => {
+            let call_def_window_proc = CONTEXT_STASH.with(|context_stash| {
+                let cstash = context_stash.borrow();
+                let mut call_def_window_proc = false;
+                if let Some(cstash) = cstash.as_ref() {
+                    if let Ok(window_state) = cstash.window_state.lock() {
+                        if cstash.mouse_in_window {
+                            match window_state.cursor_state {
+                                CursorState::Normal => {
+                                    user32::SetCursor(user32::LoadCursorW(
+                                            ptr::null_mut(),
+                                            window_state.cursor));
+                                },
+                                CursorState::Grab | CursorState::Hide => {
+                                    user32::SetCursor(ptr::null_mut());
+                                }
+                            }
+                        } else {
+                            call_def_window_proc = true;
+                        }
+                    }
+                }
+
+                call_def_window_proc
+            });
+
+            if call_def_window_proc {
+                user32::DefWindowProcW(window, msg, wparam, lparam)
+            } else {    
+                0
+            }
+        },
+
+        winapi::WM_DROPFILES => {
+            use events::WindowEvent::DroppedFile;
+
+            let hdrop = wparam as winapi::HDROP;
+            let mut pathbuf: [u16; winapi::MAX_PATH] = mem::uninitialized();
+            let num_drops = shell32::DragQueryFileW(hdrop, 0xFFFFFFFF, ptr::null_mut(), 0);
+
+            for i in 0..num_drops {
+                let nch = shell32::DragQueryFileW(hdrop, i, pathbuf.as_mut_ptr(),
+                                                  winapi::MAX_PATH as u32) as usize;
+                if nch > 0 {
+                    send_event(window, DroppedFile(OsString::from_wide(&pathbuf[0..nch]).into()));
+                }
+            }
+
+            shell32::DragFinish(hdrop);
+            0
+        },
+
+        winapi::WM_GETMINMAXINFO => {
+            let mmi = lparam as *mut MinMaxInfo;
+            //(*mmi).max_position = winapi::POINT { x: -8, y: -8 }; // The upper left corner of the window if it were maximized on the primary monitor.
+            //(*mmi).max_size = winapi::POINT { x: .., y: .. }; // The dimensions of the primary monitor.
+
+            CONTEXT_STASH.with(|context_stash| {
+                match context_stash.borrow().as_ref() {
+                    Some(cstash) => {
+                        let window_state = cstash.window_state.lock().unwrap();
+
+                        match window_state.attributes.min_dimensions {
+                            Some((width, height)) => {
+                                (*mmi).min_track = winapi::POINT { x: width as i32, y: height as i32 };
+                            },
+                            None => { }
+                        }
+
+                        match window_state.attributes.max_dimensions {
+                            Some((width, height)) => {
+                                (*mmi).max_track = winapi::POINT { x: width as i32, y: height as i32 };
+                            },
+                            None => { }
+                        }
+                    },
+                    None => { }
+                }
+            });
+            0
+        },
+
+        x if x == *super::WAKEUP_MSG_ID => {
+            use events::WindowEvent::Awakened;
+            send_event(window, Awakened);
+            0
+        },
+
+        _ => {
+            user32::DefWindowProcW(window, msg, wparam, lparam)
+        }
+    }
+}

src/platform/windows/event.rs

@@ -0,0 +1,210 @@
+use events::VirtualKeyCode;
+use events::ModifiersState;
+use winapi;
+use user32;
+use ScanCode;
+
+const MAPVK_VSC_TO_VK_EX: u32 = 3;
+
+pub fn get_key_mods() -> ModifiersState {
+    let mut mods = ModifiersState::default();
+    unsafe {
+        if user32::GetKeyState(winapi::VK_SHIFT) & (1 << 15) == (1 << 15) {
+            mods.shift = true;
+        }
+        if user32::GetKeyState(winapi::VK_CONTROL) & (1 << 15) == (1 << 15) {
+            mods.ctrl = true;
+        }
+        if user32::GetKeyState(winapi::VK_MENU) & (1 << 15) == (1 << 15) {
+            mods.alt = true;
+        }
+        if (user32::GetKeyState(winapi::VK_LWIN) | user32::GetKeyState(winapi::VK_RWIN)) & (1 << 15) == (1 << 15) {
+            mods.logo = true;
+        }
+    }
+    mods
+}
+
+pub fn vkeycode_to_element(wparam: winapi::WPARAM, lparam: winapi::LPARAM) -> (ScanCode, Option<VirtualKeyCode>) {
+    let scancode = ((lparam >> 16) & 0xff) as u8;
+    let extended = (lparam & 0x01000000) != 0;
+    let vk = match wparam as i32 {
+        winapi::VK_SHIFT => unsafe { user32::MapVirtualKeyA(scancode as u32, MAPVK_VSC_TO_VK_EX) as i32 },
+        winapi::VK_CONTROL => if extended { winapi::VK_RCONTROL } else { winapi::VK_LCONTROL },
+        winapi::VK_MENU => if extended { winapi::VK_RMENU } else { winapi::VK_LMENU },
+        other => other
+    };
+    (scancode, match vk {
+        //winapi::VK_LBUTTON => Some(VirtualKeyCode::Lbutton),
+        //winapi::VK_RBUTTON => Some(VirtualKeyCode::Rbutton),
+        //winapi::VK_CANCEL => Some(VirtualKeyCode::Cancel),
+        //winapi::VK_MBUTTON => Some(VirtualKeyCode::Mbutton),
+        //winapi::VK_XBUTTON1 => Some(VirtualKeyCode::Xbutton1),
+        //winapi::VK_XBUTTON2 => Some(VirtualKeyCode::Xbutton2),
+        winapi::VK_BACK => Some(VirtualKeyCode::Back),
+        winapi::VK_TAB => Some(VirtualKeyCode::Tab),
+        //winapi::VK_CLEAR => Some(VirtualKeyCode::Clear),
+        winapi::VK_RETURN => Some(VirtualKeyCode::Return),
+        winapi::VK_LSHIFT => Some(VirtualKeyCode::LShift),
+        winapi::VK_RSHIFT => Some(VirtualKeyCode::RShift),
+        winapi::VK_LCONTROL => Some(VirtualKeyCode::LControl),
+        winapi::VK_RCONTROL => Some(VirtualKeyCode::RControl),
+        winapi::VK_LMENU => Some(VirtualKeyCode::LMenu),
+        winapi::VK_RMENU => Some(VirtualKeyCode::RMenu),
+        winapi::VK_PAUSE => Some(VirtualKeyCode::Pause),
+        winapi::VK_CAPITAL => Some(VirtualKeyCode::Capital),
+        winapi::VK_KANA => Some(VirtualKeyCode::Kana),
+        //winapi::VK_HANGUEL => Some(VirtualKeyCode::Hanguel),
+        //winapi::VK_HANGUL => Some(VirtualKeyCode::Hangul),
+        //winapi::VK_JUNJA => Some(VirtualKeyCode::Junja),
+        //winapi::VK_FINAL => Some(VirtualKeyCode::Final),
+        //winapi::VK_HANJA => Some(VirtualKeyCode::Hanja),
+        winapi::VK_KANJI => Some(VirtualKeyCode::Kanji),
+        winapi::VK_ESCAPE => Some(VirtualKeyCode::Escape),
+        winapi::VK_CONVERT => Some(VirtualKeyCode::Convert),
+        winapi::VK_NONCONVERT => Some(VirtualKeyCode::NoConvert),
+        //winapi::VK_ACCEPT => Some(VirtualKeyCode::Accept),
+        //winapi::VK_MODECHANGE => Some(VirtualKeyCode::Modechange),
+        winapi::VK_SPACE => Some(VirtualKeyCode::Space),
+        winapi::VK_PRIOR => Some(VirtualKeyCode::PageUp),
+        winapi::VK_NEXT => Some(VirtualKeyCode::PageDown),
+        winapi::VK_END => Some(VirtualKeyCode::End),
+        winapi::VK_HOME => Some(VirtualKeyCode::Home),
+        winapi::VK_LEFT => Some(VirtualKeyCode::Left),
+        winapi::VK_UP => Some(VirtualKeyCode::Up),
+        winapi::VK_RIGHT => Some(VirtualKeyCode::Right),
+        winapi::VK_DOWN => Some(VirtualKeyCode::Down),
+        //winapi::VK_SELECT => Some(VirtualKeyCode::Select),
+        //winapi::VK_PRINT => Some(VirtualKeyCode::Print),
+        //winapi::VK_EXECUTE => Some(VirtualKeyCode::Execute),
+        winapi::VK_SNAPSHOT => Some(VirtualKeyCode::Snapshot),
+        winapi::VK_INSERT => Some(VirtualKeyCode::Insert),
+        winapi::VK_DELETE => Some(VirtualKeyCode::Delete),
+        //winapi::VK_HELP => Some(VirtualKeyCode::Help),
+        0x30 => Some(VirtualKeyCode::Key0),
+        0x31 => Some(VirtualKeyCode::Key1),
+        0x32 => Some(VirtualKeyCode::Key2),
+        0x33 => Some(VirtualKeyCode::Key3),
+        0x34 => Some(VirtualKeyCode::Key4),
+        0x35 => Some(VirtualKeyCode::Key5),
+        0x36 => Some(VirtualKeyCode::Key6),
+        0x37 => Some(VirtualKeyCode::Key7),
+        0x38 => Some(VirtualKeyCode::Key8),
+        0x39 => Some(VirtualKeyCode::Key9),
+        0x41 => Some(VirtualKeyCode::A),
+        0x42 => Some(VirtualKeyCode::B),
+        0x43 => Some(VirtualKeyCode::C),
+        0x44 => Some(VirtualKeyCode::D),
+        0x45 => Some(VirtualKeyCode::E),
+        0x46 => Some(VirtualKeyCode::F),
+        0x47 => Some(VirtualKeyCode::G),
+        0x48 => Some(VirtualKeyCode::H),
+        0x49 => Some(VirtualKeyCode::I),
+        0x4A => Some(VirtualKeyCode::J),
+        0x4B => Some(VirtualKeyCode::K),
+        0x4C => Some(VirtualKeyCode::L),
+        0x4D => Some(VirtualKeyCode::M),
+        0x4E => Some(VirtualKeyCode::N),
+        0x4F => Some(VirtualKeyCode::O),
+        0x50 => Some(VirtualKeyCode::P),
+        0x51 => Some(VirtualKeyCode::Q),
+        0x52 => Some(VirtualKeyCode::R),
+        0x53 => Some(VirtualKeyCode::S),
+        0x54 => Some(VirtualKeyCode::T),
+        0x55 => Some(VirtualKeyCode::U),
+        0x56 => Some(VirtualKeyCode::V),
+        0x57 => Some(VirtualKeyCode::W),
+        0x58 => Some(VirtualKeyCode::X),
+        0x59 => Some(VirtualKeyCode::Y),
+        0x5A => Some(VirtualKeyCode::Z),
+        //winapi::VK_LWIN => Some(VirtualKeyCode::Lwin),
+        //winapi::VK_RWIN => Some(VirtualKeyCode::Rwin),
+        winapi::VK_APPS => Some(VirtualKeyCode::Apps),
+        winapi::VK_SLEEP => Some(VirtualKeyCode::Sleep),
+        winapi::VK_NUMPAD0 => Some(VirtualKeyCode::Numpad0),
+        winapi::VK_NUMPAD1 => Some(VirtualKeyCode::Numpad1),
+        winapi::VK_NUMPAD2 => Some(VirtualKeyCode::Numpad2),
+        winapi::VK_NUMPAD3 => Some(VirtualKeyCode::Numpad3),
+        winapi::VK_NUMPAD4 => Some(VirtualKeyCode::Numpad4),
+        winapi::VK_NUMPAD5 => Some(VirtualKeyCode::Numpad5),
+        winapi::VK_NUMPAD6 => Some(VirtualKeyCode::Numpad6),
+        winapi::VK_NUMPAD7 => Some(VirtualKeyCode::Numpad7),
+        winapi::VK_NUMPAD8 => Some(VirtualKeyCode::Numpad8),
+        winapi::VK_NUMPAD9 => Some(VirtualKeyCode::Numpad9),
+        winapi::VK_MULTIPLY => Some(VirtualKeyCode::Multiply),
+        winapi::VK_ADD => Some(VirtualKeyCode::Add),
+        //winapi::VK_SEPARATOR => Some(VirtualKeyCode::Separator),
+        winapi::VK_SUBTRACT => Some(VirtualKeyCode::Subtract),
+        winapi::VK_DECIMAL => Some(VirtualKeyCode::Decimal),
+        winapi::VK_DIVIDE => Some(VirtualKeyCode::Divide),
+        winapi::VK_F1 => Some(VirtualKeyCode::F1),
+        winapi::VK_F2 => Some(VirtualKeyCode::F2),
+        winapi::VK_F3 => Some(VirtualKeyCode::F3),
+        winapi::VK_F4 => Some(VirtualKeyCode::F4),
+        winapi::VK_F5 => Some(VirtualKeyCode::F5),
+        winapi::VK_F6 => Some(VirtualKeyCode::F6),
+        winapi::VK_F7 => Some(VirtualKeyCode::F7),
+        winapi::VK_F8 => Some(VirtualKeyCode::F8),
+        winapi::VK_F9 => Some(VirtualKeyCode::F9),
+        winapi::VK_F10 => Some(VirtualKeyCode::F10),
+        winapi::VK_F11 => Some(VirtualKeyCode::F11),
+        winapi::VK_F12 => Some(VirtualKeyCode::F12),
+        winapi::VK_F13 => Some(VirtualKeyCode::F13),
+        winapi::VK_F14 => Some(VirtualKeyCode::F14),
+        winapi::VK_F15 => Some(VirtualKeyCode::F15),
+        /*winapi::VK_F16 => Some(VirtualKeyCode::F16),
+        winapi::VK_F17 => Some(VirtualKeyCode::F17),
+        winapi::VK_F18 => Some(VirtualKeyCode::F18),
+        winapi::VK_F19 => Some(VirtualKeyCode::F19),
+        winapi::VK_F20 => Some(VirtualKeyCode::F20),
+        winapi::VK_F21 => Some(VirtualKeyCode::F21),
+        winapi::VK_F22 => Some(VirtualKeyCode::F22),
+        winapi::VK_F23 => Some(VirtualKeyCode::F23),
+        winapi::VK_F24 => Some(VirtualKeyCode::F24),*/
+        winapi::VK_NUMLOCK => Some(VirtualKeyCode::Numlock),
+        winapi::VK_SCROLL => Some(VirtualKeyCode::Scroll),
+        winapi::VK_BROWSER_BACK => Some(VirtualKeyCode::NavigateBackward),
+        winapi::VK_BROWSER_FORWARD => Some(VirtualKeyCode::NavigateForward),
+        winapi::VK_BROWSER_REFRESH => Some(VirtualKeyCode::WebRefresh),
+        winapi::VK_BROWSER_STOP => Some(VirtualKeyCode::WebStop),
+        winapi::VK_BROWSER_SEARCH => Some(VirtualKeyCode::WebSearch),
+        winapi::VK_BROWSER_FAVORITES => Some(VirtualKeyCode::WebFavorites),
+        winapi::VK_BROWSER_HOME => Some(VirtualKeyCode::WebHome),
+        winapi::VK_VOLUME_MUTE => Some(VirtualKeyCode::Mute),
+        winapi::VK_VOLUME_DOWN => Some(VirtualKeyCode::VolumeDown),
+        winapi::VK_VOLUME_UP => Some(VirtualKeyCode::VolumeUp),
+        winapi::VK_MEDIA_NEXT_TRACK => Some(VirtualKeyCode::NextTrack),
+        winapi::VK_MEDIA_PREV_TRACK => Some(VirtualKeyCode::PrevTrack),
+        winapi::VK_MEDIA_STOP => Some(VirtualKeyCode::MediaStop),
+        winapi::VK_MEDIA_PLAY_PAUSE => Some(VirtualKeyCode::PlayPause),
+        winapi::VK_LAUNCH_MAIL => Some(VirtualKeyCode::Mail),
+        winapi::VK_LAUNCH_MEDIA_SELECT => Some(VirtualKeyCode::MediaSelect),
+        /*winapi::VK_LAUNCH_APP1 => Some(VirtualKeyCode::Launch_app1),
+        winapi::VK_LAUNCH_APP2 => Some(VirtualKeyCode::Launch_app2),*/
+	winapi::VK_OEM_PLUS => Some(VirtualKeyCode::Equals),
+        winapi::VK_OEM_COMMA => Some(VirtualKeyCode::Comma),
+        winapi::VK_OEM_MINUS => Some(VirtualKeyCode::Minus),
+        winapi::VK_OEM_PERIOD => Some(VirtualKeyCode::Period),
+        /*winapi::VK_OEM_1 => Some(VirtualKeyCode::Oem_1),
+        winapi::VK_OEM_2 => Some(VirtualKeyCode::Oem_2), 
+        winapi::VK_OEM_3 => Some(VirtualKeyCode::Oem_3), 
+        winapi::VK_OEM_4 => Some(VirtualKeyCode::Oem_4), 
+        winapi::VK_OEM_5 => Some(VirtualKeyCode::Oem_5), 
+        winapi::VK_OEM_6 => Some(VirtualKeyCode::Oem_6), 
+        winapi::VK_OEM_7 => Some(VirtualKeyCode::Oem_7), 
+        winapi::VK_OEM_8 => Some(VirtualKeyCode::Oem_8), */
+        winapi::VK_OEM_102 => Some(VirtualKeyCode::OEM102),
+        /*winapi::VK_PROCESSKEY => Some(VirtualKeyCode::Processkey),
+        winapi::VK_PACKET => Some(VirtualKeyCode::Packet),
+        winapi::VK_ATTN => Some(VirtualKeyCode::Attn),
+        winapi::VK_CRSEL => Some(VirtualKeyCode::Crsel),
+        winapi::VK_EXSEL => Some(VirtualKeyCode::Exsel),
+        winapi::VK_EREOF => Some(VirtualKeyCode::Ereof),
+        winapi::VK_PLAY => Some(VirtualKeyCode::Play),
+        winapi::VK_ZOOM => Some(VirtualKeyCode::Zoom),
+        winapi::VK_NONAME => Some(VirtualKeyCode::Noname),
+        winapi::VK_PA1 => Some(VirtualKeyCode::Pa1),
+        winapi::VK_OEM_CLEAR => Some(VirtualKeyCode::Oem_clear),*/
+        _ => None
+    })
+}

src/platform/windows/init.rs

@@ -0,0 +1,259 @@
+use std::sync::{Arc, Mutex};
+use std::io;
+use std::ptr;
+use std::mem;
+use std::thread;
+
+use super::callback;
+use super::WindowState;
+use super::Window;
+use super::MonitorId;
+use super::WindowWrapper;
+use super::PlatformSpecificWindowBuilderAttributes;
+
+use CreationError;
+use CreationError::OsError;
+use CursorState;
+use WindowAttributes;
+
+use std::ffi::{OsStr};
+use std::os::windows::ffi::OsStrExt;
+use std::sync::mpsc::channel;
+
+use winapi;
+use kernel32;
+use dwmapi;
+use user32;
+
+pub fn new_window(window: &WindowAttributes, pl_attribs: &PlatformSpecificWindowBuilderAttributes) -> Result<Window, CreationError> {
+    let window = window.clone();
+    let attribs = pl_attribs.clone();
+    // initializing variables to be sent to the task
+
+    let title = OsStr::new(&window.title).encode_wide().chain(Some(0).into_iter())
+                                          .collect::<Vec<_>>();
+
+    let (tx, rx) = channel();
+
+    // `GetMessage` must be called in the same thread as CreateWindow, so we create a new thread
+    // dedicated to this window.
+    thread::spawn(move || {
+        unsafe {
+            // creating and sending the `Window`
+            match init(title, &window, attribs) {
+                Ok(w) => tx.send(Ok(w)).ok(),
+                Err(e) => {
+                    tx.send(Err(e)).ok();
+                    return;
+                }
+            };
+
+            // now that the `Window` struct is initialized, the main `Window::new()` function will
+            //  return and this events loop will run in parallel
+            loop {
+                let mut msg = mem::uninitialized();
+
+                if user32::GetMessageW(&mut msg, ptr::null_mut(), 0, 0) == 0 {
+                    break;
+                }
+
+                user32::TranslateMessage(&msg);
+                user32::DispatchMessageW(&msg);   // calls `callback` (see the callback module)
+            }
+        }
+    });
+
+    rx.recv().unwrap()
+}
+
+unsafe fn init(title: Vec<u16>, window: &WindowAttributes, pl_attribs: PlatformSpecificWindowBuilderAttributes) -> Result<Window, CreationError> {
+    // registering the window class
+    let class_name = register_window_class();
+
+    // building a RECT object with coordinates
+    let mut rect = winapi::RECT {
+        left: 0, right: window.dimensions.unwrap_or((1024, 768)).0 as winapi::LONG,
+        top: 0, bottom: window.dimensions.unwrap_or((1024, 768)).1 as winapi::LONG,
+    };
+
+    // switching to fullscreen if necessary
+    // this means adjusting the window's position so that it overlaps the right monitor,
+    //  and change the monitor's resolution if necessary
+    if window.monitor.is_some() {
+        let monitor = window.monitor.as_ref().unwrap();
+        try!(switch_to_fullscreen(&mut rect, monitor));
+    }
+
+    // computing the style and extended style of the window
+    let (ex_style, style) = if window.monitor.is_some() || !window.decorations {
+        (winapi::WS_EX_APPWINDOW,
+            //winapi::WS_POPUP is incompatible with winapi::WS_CHILD
+            if pl_attribs.parent.is_some() {
+                winapi::WS_CLIPSIBLINGS | winapi::WS_CLIPCHILDREN
+            }
+            else {
+                winapi::WS_POPUP | winapi::WS_CLIPSIBLINGS | winapi::WS_CLIPCHILDREN
+            }
+        )
+    } else {
+        (winapi::WS_EX_APPWINDOW | winapi::WS_EX_WINDOWEDGE,
+            winapi::WS_OVERLAPPEDWINDOW | winapi::WS_CLIPSIBLINGS | winapi::WS_CLIPCHILDREN)
+    };
+
+    // adjusting the window coordinates using the style
+    user32::AdjustWindowRectEx(&mut rect, style, 0, ex_style);
+
+    // creating the real window this time, by using the functions in `extra_functions`
+    let real_window = {
+        let (width, height) = if window.monitor.is_some() || window.dimensions.is_some() {
+            (Some(rect.right - rect.left), Some(rect.bottom - rect.top))
+        } else {
+            (None, None)
+        };
+
+        let (x, y) = if window.monitor.is_some() {
+            (Some(rect.left), Some(rect.top))
+        } else {
+            (None, None)
+        };
+
+        let mut style = if !window.visible {
+            style
+        } else {
+            style | winapi::WS_VISIBLE
+        };
+
+        if pl_attribs.parent.is_some() {
+            style |= winapi::WS_CHILD;
+        }
+
+        let handle = user32::CreateWindowExW(ex_style | winapi::WS_EX_ACCEPTFILES,
+            class_name.as_ptr(),
+            title.as_ptr() as winapi::LPCWSTR,
+            style | winapi::WS_CLIPSIBLINGS | winapi::WS_CLIPCHILDREN,
+            x.unwrap_or(winapi::CW_USEDEFAULT), y.unwrap_or(winapi::CW_USEDEFAULT),
+            width.unwrap_or(winapi::CW_USEDEFAULT), height.unwrap_or(winapi::CW_USEDEFAULT),
+            pl_attribs.parent.unwrap_or(ptr::null_mut()),
+            ptr::null_mut(), kernel32::GetModuleHandleW(ptr::null()),
+            ptr::null_mut());
+
+        if handle.is_null() {
+            return Err(OsError(format!("CreateWindowEx function failed: {}",
+                                       format!("{}", io::Error::last_os_error()))));
+        }
+
+        let hdc = user32::GetDC(handle);
+        if hdc.is_null() {
+            return Err(OsError(format!("GetDC function failed: {}",
+                                       format!("{}", io::Error::last_os_error()))));
+        }
+
+        WindowWrapper(handle, hdc)
+    };
+
+    // making the window transparent
+    if window.transparent {
+        let bb = winapi::DWM_BLURBEHIND {
+            dwFlags: 0x1, // FIXME: DWM_BB_ENABLE;
+            fEnable: 1,
+            hRgnBlur: ptr::null_mut(),
+            fTransitionOnMaximized: 0,
+        };
+
+        dwmapi::DwmEnableBlurBehindWindow(real_window.0, &bb);
+    }
+
+    // calling SetForegroundWindow if fullscreen
+    if window.monitor.is_some() {
+        user32::SetForegroundWindow(real_window.0);
+    }
+
+    // Creating a mutex to track the current window state
+    let window_state = Arc::new(Mutex::new(WindowState {
+        cursor: winapi::IDC_ARROW, // use arrow by default
+        cursor_state: CursorState::Normal,
+        attributes: window.clone()
+    }));
+
+    // filling the CONTEXT_STASH task-local storage so that we can start receiving events
+    let events_receiver = {
+        let (tx, rx) = channel();
+        let mut tx = Some(tx);
+        callback::CONTEXT_STASH.with(|context_stash| {
+            let data = callback::ThreadLocalData {
+                win: real_window.0,
+                sender: tx.take().unwrap(),
+                window_state: window_state.clone(),
+                mouse_in_window: false
+            };
+            (*context_stash.borrow_mut()) = Some(data);
+        });
+        rx
+    };
+
+    // building the struct
+    Ok(Window {
+        window: real_window,
+        events_receiver: events_receiver,
+        window_state: window_state,
+    })
+}
+
+unsafe fn register_window_class() -> Vec<u16> {
+    let class_name = OsStr::new("Window Class").encode_wide().chain(Some(0).into_iter())
+                                               .collect::<Vec<_>>();
+
+    let class = winapi::WNDCLASSEXW {
+        cbSize: mem::size_of::<winapi::WNDCLASSEXW>() as winapi::UINT,
+        style: winapi::CS_HREDRAW | winapi::CS_VREDRAW | winapi::CS_OWNDC,
+        lpfnWndProc: Some(callback::callback),
+        cbClsExtra: 0,
+        cbWndExtra: 0,
+        hInstance: kernel32::GetModuleHandleW(ptr::null()),
+        hIcon: ptr::null_mut(),
+        hCursor: ptr::null_mut(),       // must be null in order for cursor state to work properly
+        hbrBackground: ptr::null_mut(),
+        lpszMenuName: ptr::null(),
+        lpszClassName: class_name.as_ptr(),
+        hIconSm: ptr::null_mut(),
+    };
+
+    // We ignore errors because registering the same window class twice would trigger
+    //  an error, and because errors here are detected during CreateWindowEx anyway.
+    // Also since there is no weird element in the struct, there is no reason for this
+    //  call to fail.
+    user32::RegisterClassExW(&class);
+
+    class_name
+}
+
+unsafe fn switch_to_fullscreen(rect: &mut winapi::RECT, monitor: &MonitorId)
+                               -> Result<(), CreationError>
+{
+    // adjusting the rect
+    {
+        let pos = monitor.get_position();
+        rect.left += pos.0 as winapi::LONG;
+        rect.right += pos.0 as winapi::LONG;
+        rect.top += pos.1 as winapi::LONG;
+        rect.bottom += pos.1 as winapi::LONG;
+    }
+
+    // changing device settings
+    let mut screen_settings: winapi::DEVMODEW = mem::zeroed();
+    screen_settings.dmSize = mem::size_of::<winapi::DEVMODEW>() as winapi::WORD;
+    screen_settings.dmPelsWidth = (rect.right - rect.left) as winapi::DWORD;
+    screen_settings.dmPelsHeight = (rect.bottom - rect.top) as winapi::DWORD;
+    screen_settings.dmBitsPerPel = 32;      // TODO: ?
+    screen_settings.dmFields = winapi::DM_BITSPERPEL | winapi::DM_PELSWIDTH | winapi::DM_PELSHEIGHT;
+
+    let result = user32::ChangeDisplaySettingsExW(monitor.get_adapter_name().as_ptr(),
+                                                  &mut screen_settings, ptr::null_mut(),
+                                                  winapi::CDS_FULLSCREEN, ptr::null_mut());
+
+    if result != winapi::DISP_CHANGE_SUCCESSFUL {
+        return Err(OsError(format!("ChangeDisplaySettings failed: {}", result)));
+    }
+
+    Ok(())
+}

src/platform/windows/mod.rs

@@ -0,0 +1,385 @@
+#![cfg(target_os = "windows")]
+
+use std::mem;
+use std::ptr;
+use std::ffi::OsStr;
+use std::os::windows::ffi::OsStrExt;
+use std::os::raw::c_int;
+use std::sync::{
+    Arc,
+    Mutex
+};
+use std::sync::mpsc::Receiver;
+use {CreationError, WindowEvent as Event, MouseCursor};
+use CursorState;
+
+use WindowAttributes;
+
+gen_api_transition!();
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificWindowBuilderAttributes {
+    pub parent: Option<winapi::HWND>,
+}
+
+unsafe impl Send for PlatformSpecificWindowBuilderAttributes {}
+unsafe impl Sync for PlatformSpecificWindowBuilderAttributes {}
+
+#[derive(Clone, Default)]
+pub struct PlatformSpecificHeadlessBuilderAttributes;
+
+pub use self::monitor::{MonitorId, get_available_monitors, get_primary_monitor};
+
+use winapi;
+use user32;
+use kernel32;
+
+mod callback;
+mod event;
+mod init;
+mod monitor;
+
+lazy_static! {
+    static ref WAKEUP_MSG_ID: u32 = unsafe { user32::RegisterWindowMessageA("Glutin::EventID".as_ptr() as *const i8) };
+}
+
+/// Cursor
+pub type Cursor = *const winapi::wchar_t;
+
+/// Contains information about states and the window for the callback.
+#[derive(Clone)]
+pub struct WindowState {
+    pub cursor: Cursor,
+    pub cursor_state: CursorState,
+    pub attributes: WindowAttributes
+}
+
+/// The Win32 implementation of the main `Window` object.
+pub struct Window {
+    /// Main handle for the window.
+    window: WindowWrapper,
+
+    /// Receiver for the events dispatched by the window callback.
+    events_receiver: Receiver<Event>,
+
+    /// The current window state.
+    window_state: Arc<Mutex<WindowState>>,
+}
+
+unsafe impl Send for Window {}
+unsafe impl Sync for Window {}
+
+/// A simple wrapper that destroys the window when it is destroyed.
+#[doc(hidden)]
+pub struct WindowWrapper(winapi::HWND, winapi::HDC);
+
+impl Drop for WindowWrapper {
+    #[inline]
+    fn drop(&mut self) {
+        unsafe {
+            user32::DestroyWindow(self.0);
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct WindowProxy {
+    hwnd: winapi::HWND,
+}
+
+unsafe impl Send for WindowProxy {}
+unsafe impl Sync for WindowProxy {}
+
+impl WindowProxy {
+    #[inline]
+    pub fn wakeup_event_loop(&self) {
+        unsafe {
+            user32::PostMessageA(self.hwnd, *WAKEUP_MSG_ID, 0, 0);
+        }
+    }
+}
+
+impl Window {
+    /// See the docs in the crate root file.
+    pub fn new(window: &WindowAttributes, pl_attribs: &PlatformSpecificWindowBuilderAttributes)
+               -> Result<Window, CreationError>
+    {
+        init::new_window(window, pl_attribs)
+    }
+
+    /// See the docs in the crate root file.
+    ///
+    /// Calls SetWindowText on the HWND.
+    pub fn set_title(&self, text: &str) {
+        let text = OsStr::new(text).encode_wide().chain(Some(0).into_iter())
+                                   .collect::<Vec<_>>();
+
+        unsafe {
+            user32::SetWindowTextW(self.window.0, text.as_ptr() as winapi::LPCWSTR);
+        }
+    }
+
+    #[inline]
+    pub fn show(&self) {
+        unsafe {
+            user32::ShowWindow(self.window.0, winapi::SW_SHOW);
+        }
+    }
+
+    #[inline]
+    pub fn hide(&self) {
+        unsafe {
+            user32::ShowWindow(self.window.0, winapi::SW_HIDE);
+        }
+    }
+
+    /// See the docs in the crate root file.
+    pub fn get_position(&self) -> Option<(i32, i32)> {
+        use std::mem;
+
+        let mut placement: winapi::WINDOWPLACEMENT = unsafe { mem::zeroed() };
+        placement.length = mem::size_of::<winapi::WINDOWPLACEMENT>() as winapi::UINT;
+
+        if unsafe { user32::GetWindowPlacement(self.window.0, &mut placement) } == 0 {
+            return None
+        }
+
+        let ref rect = placement.rcNormalPosition;
+        Some((rect.left as i32, rect.top as i32))
+    }
+
+    /// See the docs in the crate root file.
+    pub fn set_position(&self, x: i32, y: i32) {
+        unsafe {
+            user32::SetWindowPos(self.window.0, ptr::null_mut(), x as c_int, y as c_int,
+                                 0, 0, winapi::SWP_NOZORDER | winapi::SWP_NOSIZE);
+            user32::UpdateWindow(self.window.0);
+        }
+    }
+
+    /// See the docs in the crate root file.
+    #[inline]
+    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
+        let mut rect: winapi::RECT = unsafe { mem::uninitialized() };
+
+        if unsafe { user32::GetClientRect(self.window.0, &mut rect) } == 0 {
+            return None
+        }
+
+        Some((
+            (rect.right - rect.left) as u32,
+            (rect.bottom - rect.top) as u32
+        ))
+    }
+
+    /// See the docs in the crate root file.
+    #[inline]
+    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
+        let mut rect: winapi::RECT = unsafe { mem::uninitialized() };
+
+        if unsafe { user32::GetWindowRect(self.window.0, &mut rect) } == 0 {
+            return None
+        }
+
+        Some((
+            (rect.right - rect.left) as u32,
+            (rect.bottom - rect.top) as u32
+        ))
+    }
+
+    /// See the docs in the crate root file.
+    pub fn set_inner_size(&self, x: u32, y: u32) {
+        unsafe {
+            // Calculate the outer size based upon the specified inner size
+            let mut rect = winapi::RECT { top: 0, left: 0, bottom: y as winapi::LONG, right: x as winapi::LONG };
+            let dw_style = user32::GetWindowLongA(self.window.0, winapi::GWL_STYLE) as winapi::DWORD;
+            let b_menu = !user32::GetMenu(self.window.0).is_null() as winapi::BOOL;
+            let dw_style_ex = user32::GetWindowLongA(self.window.0, winapi::GWL_EXSTYLE) as winapi::DWORD;
+            user32::AdjustWindowRectEx(&mut rect, dw_style, b_menu, dw_style_ex);
+            let outer_x = (rect.right - rect.left).abs() as c_int;
+            let outer_y = (rect.top - rect.bottom).abs() as c_int;
+
+            user32::SetWindowPos(self.window.0, ptr::null_mut(), 0, 0, outer_x, outer_y,
+                winapi::SWP_NOZORDER | winapi::SWP_NOREPOSITION | winapi::SWP_NOMOVE);
+            user32::UpdateWindow(self.window.0);
+        }
+    }
+
+    #[inline]
+    pub fn create_window_proxy(&self) -> WindowProxy {
+        WindowProxy { hwnd: self.window.0 }
+    }
+
+    /// See the docs in the crate root file.
+    #[inline]
+    pub fn poll_events(&self) -> PollEventsIterator {
+        PollEventsIterator {
+            window: self,
+        }
+    }
+
+    /// See the docs in the crate root file.
+    #[inline]
+    pub fn wait_events(&self) -> WaitEventsIterator {
+        WaitEventsIterator {
+            window: self,
+        }
+    }
+
+    #[inline]
+    pub fn platform_display(&self) -> *mut ::libc::c_void {
+        // What should this return on win32?
+        // It could be GetDC(NULL), but that requires a ReleaseDC()
+        // to avoid leaking the DC.
+        ptr::null_mut()
+    }
+
+    #[inline]
+    pub fn platform_window(&self) -> *mut ::libc::c_void {
+        self.window.0 as *mut ::libc::c_void
+    }
+
+    #[inline]
+    pub fn set_window_resize_callback(&mut self, _: Option<fn(u32, u32)>) {
+    }
+
+    #[inline]
+    pub fn set_cursor(&self, _cursor: MouseCursor) {
+        let cursor_id = match _cursor {
+            MouseCursor::Arrow | MouseCursor::Default => winapi::IDC_ARROW,
+            MouseCursor::Hand => winapi::IDC_HAND,
+            MouseCursor::Crosshair => winapi::IDC_CROSS,
+            MouseCursor::Text | MouseCursor::VerticalText => winapi::IDC_IBEAM,
+            MouseCursor::NotAllowed | MouseCursor::NoDrop => winapi::IDC_NO,
+            MouseCursor::EResize => winapi::IDC_SIZEWE,
+            MouseCursor::NResize => winapi::IDC_SIZENS,
+            MouseCursor::WResize => winapi::IDC_SIZEWE,
+            MouseCursor::SResize => winapi::IDC_SIZENS,
+            MouseCursor::EwResize | MouseCursor::ColResize => winapi::IDC_SIZEWE,
+            MouseCursor::NsResize | MouseCursor::RowResize => winapi::IDC_SIZENS,
+            MouseCursor::Wait | MouseCursor::Progress => winapi::IDC_WAIT,
+            MouseCursor::Help => winapi::IDC_HELP,
+            _ => winapi::IDC_ARROW, // use arrow for the missing cases.
+        };
+
+        let mut cur = self.window_state.lock().unwrap();
+        cur.cursor = cursor_id;
+    }
+
+
+    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
+        let mut current_state = self.window_state.lock().unwrap();
+
+        let foreground_thread_id = unsafe { user32::GetWindowThreadProcessId(self.window.0, ptr::null_mut()) };
+        let current_thread_id = unsafe { kernel32::GetCurrentThreadId() };
+
+        unsafe { user32::AttachThreadInput(foreground_thread_id, current_thread_id, 1) };
+
+        let res = match (state, current_state.cursor_state) {
+            (CursorState::Normal, CursorState::Normal) => Ok(()),
+            (CursorState::Hide, CursorState::Hide) => Ok(()),
+            (CursorState::Grab, CursorState::Grab) => Ok(()),
+
+            (CursorState::Hide, CursorState::Normal) => {
+                current_state.cursor_state = CursorState::Hide;
+                Ok(())
+            },
+
+            (CursorState::Normal, CursorState::Hide) => {
+                current_state.cursor_state = CursorState::Normal;
+                Ok(())
+            },
+
+            (CursorState::Grab, CursorState::Normal) | (CursorState::Grab, CursorState::Hide) => {
+                unsafe {
+                    let mut rect = mem::uninitialized();
+                    if user32::GetClientRect(self.window.0, &mut rect) == 0 {
+                        return Err(format!("GetWindowRect failed"));
+                    }
+                    user32::ClientToScreen(self.window.0, mem::transmute(&mut rect.left));
+                    user32::ClientToScreen(self.window.0, mem::transmute(&mut rect.right));
+                    if user32::ClipCursor(&rect) == 0 {
+                        return Err(format!("ClipCursor failed"));
+                    }
+                    current_state.cursor_state = CursorState::Grab;
+                    Ok(())
+                }
+            },
+
+            (CursorState::Normal, CursorState::Grab) => {
+                unsafe {
+                    if user32::ClipCursor(ptr::null()) == 0 {
+                        return Err(format!("ClipCursor failed"));
+                    }
+                    current_state.cursor_state = CursorState::Normal;
+                    Ok(())
+                }
+            },
+
+            _ => unimplemented!(),
+        };
+
+        unsafe { user32::AttachThreadInput(foreground_thread_id, current_thread_id, 0) };
+
+        res
+    }
+
+    #[inline]
+    pub fn hidpi_factor(&self) -> f32 {
+        1.0
+    }
+
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        let mut point = winapi::POINT {
+            x: x,
+            y: y,
+        };
+
+        unsafe {
+            if user32::ClientToScreen(self.window.0, &mut point) == 0 {
+                return Err(());
+            }
+
+            if user32::SetCursorPos(point.x, point.y) == 0 {
+                return Err(());
+            }
+        }
+
+        Ok(())
+    }
+}
+
+impl Drop for Window {
+    #[inline]
+    fn drop(&mut self) {
+        unsafe {
+            user32::PostMessageW(self.window.0, winapi::WM_DESTROY, 0, 0);
+        }
+    }
+}
+
+pub struct PollEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for PollEventsIterator<'a> {
+    type Item = Event;
+
+    #[inline]
+    fn next(&mut self) -> Option<Event> {
+        self.window.events_receiver.try_recv().ok()
+    }
+}
+
+pub struct WaitEventsIterator<'a> {
+    window: &'a Window,
+}
+
+impl<'a> Iterator for WaitEventsIterator<'a> {
+    type Item = Event;
+
+    #[inline]
+    fn next(&mut self) -> Option<Event> {
+        self.window.events_receiver.recv().ok()
+    }
+}

src/platform/windows/monitor.rs

@@ -0,0 +1,186 @@
+use winapi;
+use user32;
+
+use std::collections::VecDeque;
+use std::mem;
+
+use native_monitor::NativeMonitorId;
+
+/// Win32 implementation of the main `MonitorId` object.
+#[derive(Clone)]
+pub struct MonitorId {
+    /// The system name of the adapter.
+    adapter_name: [winapi::WCHAR; 32],
+
+    /// The system name of the monitor.
+    monitor_name: String,
+
+    /// Name to give to the user.
+    readable_name: String,
+
+    /// See the `StateFlags` element here:
+    /// http://msdn.microsoft.com/en-us/library/dd183569(v=vs.85).aspx
+    flags: winapi::DWORD,
+
+    /// True if this is the primary monitor.
+    primary: bool,
+
+    /// The position of the monitor in pixels on the desktop.
+    ///
+    /// A window that is positionned at these coordinates will overlap the monitor.
+    position: (u32, u32),
+
+    /// The current resolution in pixels on the monitor.
+    dimensions: (u32, u32),
+}
+
+struct DeviceEnumerator {
+    parent_device: *const winapi::WCHAR,
+    current_index: u32,
+}
+
+impl DeviceEnumerator {
+    fn adapters() -> DeviceEnumerator {
+        use std::ptr;
+        DeviceEnumerator {
+            parent_device: ptr::null(),
+            current_index: 0
+        }
+    }
+
+    fn monitors(adapter_name: *const winapi::WCHAR) -> DeviceEnumerator {
+        DeviceEnumerator {
+            parent_device: adapter_name,
+            current_index: 0
+        }
+    }
+}
+
+impl Iterator for DeviceEnumerator {
+    type Item = winapi::DISPLAY_DEVICEW;
+    fn next(&mut self) -> Option<winapi::DISPLAY_DEVICEW> {
+        use std::mem;
+        loop {
+            let mut output: winapi::DISPLAY_DEVICEW = unsafe { mem::zeroed() };
+            output.cb = mem::size_of::<winapi::DISPLAY_DEVICEW>() as winapi::DWORD;
+
+            if unsafe { user32::EnumDisplayDevicesW(self.parent_device,
+                self.current_index as winapi::DWORD, &mut output, 0) } == 0
+            {
+                // the device doesn't exist, which means we have finished enumerating
+                break;
+            }
+            self.current_index += 1;
+
+            if  (output.StateFlags & winapi::DISPLAY_DEVICE_ACTIVE) == 0 ||
+                (output.StateFlags & winapi::DISPLAY_DEVICE_MIRRORING_DRIVER) != 0
+            {
+                // the device is not active
+                // the Win32 api usually returns a lot of inactive devices
+                continue;
+            }
+
+            return Some(output);
+        }
+        None
+    }
+}
+
+fn wchar_as_string(wchar: &[winapi::WCHAR]) -> String {
+    String::from_utf16_lossy(wchar)
+        .trim_right_matches(0 as char)
+        .to_string()
+}
+
+/// Win32 implementation of the main `get_available_monitors` function.
+pub fn get_available_monitors() -> VecDeque<MonitorId> {
+    // return value
+    let mut result = VecDeque::new();
+
+    for adapter in DeviceEnumerator::adapters() {
+        // getting the position
+        let (position, dimensions) = unsafe {
+            let mut dev: winapi::DEVMODEW = mem::zeroed();
+            dev.dmSize = mem::size_of::<winapi::DEVMODEW>() as winapi::WORD;
+
+            if user32::EnumDisplaySettingsExW(adapter.DeviceName.as_ptr(), 
+                winapi::ENUM_CURRENT_SETTINGS,
+                &mut dev, 0) == 0
+            {
+                continue;
+            }
+
+            let point: &winapi::POINTL = mem::transmute(&dev.union1);
+            let position = (point.x as u32, point.y as u32);
+
+            let dimensions = (dev.dmPelsWidth as u32, dev.dmPelsHeight as u32);
+
+            (position, dimensions)
+        };
+
+        for (num, monitor) in DeviceEnumerator::monitors(adapter.DeviceName.as_ptr()).enumerate() {
+            // adding to the resulting list
+            result.push_back(MonitorId {
+                adapter_name: adapter.DeviceName,
+                monitor_name: wchar_as_string(&monitor.DeviceName),
+                readable_name: wchar_as_string(&monitor.DeviceString),
+                flags: monitor.StateFlags,
+                primary: (adapter.StateFlags & winapi::DISPLAY_DEVICE_PRIMARY_DEVICE) != 0 &&
+                         num == 0,
+                position: position,
+                dimensions: dimensions,
+            });
+        }
+    }
+    result
+}
+
+/// Win32 implementation of the main `get_primary_monitor` function.
+pub fn get_primary_monitor() -> MonitorId {
+    // we simply get all available monitors and return the one with the `PRIMARY_DEVICE` flag
+    // TODO: it is possible to query the win32 API for the primary monitor, this should be done
+    //  instead
+    for monitor in get_available_monitors().into_iter() {
+        if monitor.primary {
+            return monitor;
+        }
+    }
+
+    panic!("Failed to find the primary monitor")
+}
+
+impl MonitorId {
+    /// See the docs if the crate root file.
+    #[inline]
+    pub fn get_name(&self) -> Option<String> {
+        Some(self.readable_name.clone())
+    }
+
+    /// See the docs of the crate root file.
+    #[inline]
+    pub fn get_native_identifier(&self) -> NativeMonitorId {
+        NativeMonitorId::Name(self.monitor_name.clone())
+    }
+
+    /// See the docs if the crate root file.
+    #[inline]
+    pub fn get_dimensions(&self) -> (u32, u32) {
+        // TODO: retreive the dimensions every time this is called
+        self.dimensions
+    }
+
+    /// This is a Win32-only function for `MonitorId` that returns the system name of the adapter
+    /// device.
+    #[inline]
+    pub fn get_adapter_name(&self) -> &[winapi::WCHAR] {
+        &self.adapter_name
+    }
+
+    /// This is a Win32-only function for `MonitorId` that returns the position of the
+    ///  monitor on the desktop.
+    /// A window that is positionned at these coordinates will overlap the monitor.
+    #[inline]
+    pub fn get_position(&self) -> (u32, u32) {
+        self.position
+    }
+}

src/platform_impl/android/ffi.rs

@@ -1,122 +0,0 @@
-#![allow(dead_code)]
-#![allow(non_snake_case)]
-#![allow(non_camel_case_types)]
-#![allow(non_upper_case_globals)]
-
-use libc;
-use std::os::raw;
-
-#[link(name = "android")]
-#[link(name = "EGL")]
-#[link(name = "GLESv2")]
-extern "C" {}
-
-/**
- ** asset_manager.h
- **/
-pub type AAssetManager = raw::c_void;
-
-/**
- ** native_window.h
- **/
-pub type ANativeWindow = raw::c_void;
-
-extern "C" {
-    pub fn ANativeWindow_getHeight(window: *const ANativeWindow) -> libc::int32_t;
-    pub fn ANativeWindow_getWidth(window: *const ANativeWindow) -> libc::int32_t;
-}
-
-/**
- ** native_activity.h
- **/
-pub type JavaVM = ();
-pub type JNIEnv = ();
-pub type jobject = *const libc::c_void;
-
-pub type AInputQueue = (); // FIXME: wrong
-pub type ARect = (); // FIXME: wrong
-
-#[repr(C)]
-pub struct ANativeActivity {
-    pub callbacks: *mut ANativeActivityCallbacks,
-    pub vm: *mut JavaVM,
-    pub env: *mut JNIEnv,
-    pub clazz: jobject,
-    pub internalDataPath: *const libc::c_char,
-    pub externalDataPath: *const libc::c_char,
-    pub sdkVersion: libc::int32_t,
-    pub instance: *mut libc::c_void,
-    pub assetManager: *mut AAssetManager,
-    pub obbPath: *const libc::c_char,
-}
-
-#[repr(C)]
-pub struct ANativeActivityCallbacks {
-    pub onStart: extern "C" fn(*mut ANativeActivity),
-    pub onResume: extern "C" fn(*mut ANativeActivity),
-    pub onSaveInstanceState: extern "C" fn(*mut ANativeActivity, *mut libc::size_t),
-    pub onPause: extern "C" fn(*mut ANativeActivity),
-    pub onStop: extern "C" fn(*mut ANativeActivity),
-    pub onDestroy: extern "C" fn(*mut ANativeActivity),
-    pub onWindowFocusChanged: extern "C" fn(*mut ANativeActivity, libc::c_int),
-    pub onNativeWindowCreated: extern "C" fn(*mut ANativeActivity, *const ANativeWindow),
-    pub onNativeWindowResized: extern "C" fn(*mut ANativeActivity, *const ANativeWindow),
-    pub onNativeWindowRedrawNeeded: extern "C" fn(*mut ANativeActivity, *const ANativeWindow),
-    pub onNativeWindowDestroyed: extern "C" fn(*mut ANativeActivity, *const ANativeWindow),
-    pub onInputQueueCreated: extern "C" fn(*mut ANativeActivity, *mut AInputQueue),
-    pub onInputQueueDestroyed: extern "C" fn(*mut ANativeActivity, *mut AInputQueue),
-    pub onContentRectChanged: extern "C" fn(*mut ANativeActivity, *const ARect),
-    pub onConfigurationChanged: extern "C" fn(*mut ANativeActivity),
-    pub onLowMemory: extern "C" fn(*mut ANativeActivity),
-}
-
-/**
- ** looper.h
- **/
-pub type ALooper = ();
-
-#[link(name = "android")]
-extern "C" {
-    pub fn ALooper_forThread() -> *const ALooper;
-    pub fn ALooper_acquire(looper: *const ALooper);
-    pub fn ALooper_release(looper: *const ALooper);
-    pub fn ALooper_prepare(opts: libc::c_int) -> *const ALooper;
-    pub fn ALooper_pollOnce(
-        timeoutMillis: libc::c_int,
-        outFd: *mut libc::c_int,
-        outEvents: *mut libc::c_int,
-        outData: *mut *mut libc::c_void,
-    ) -> libc::c_int;
-    pub fn ALooper_pollAll(
-        timeoutMillis: libc::c_int,
-        outFd: *mut libc::c_int,
-        outEvents: *mut libc::c_int,
-        outData: *mut *mut libc::c_void,
-    ) -> libc::c_int;
-    pub fn ALooper_wake(looper: *const ALooper);
-    pub fn ALooper_addFd(
-        looper: *const ALooper,
-        fd: libc::c_int,
-        ident: libc::c_int,
-        events: libc::c_int,
-        callback: ALooper_callbackFunc,
-        data: *mut libc::c_void,
-    ) -> libc::c_int;
-    pub fn ALooper_removeFd(looper: *const ALooper, fd: libc::c_int) -> libc::c_int;
-}
-
-pub const ALOOPER_PREPARE_ALLOW_NON_CALLBACKS: libc::c_int = 1 << 0;
-
-pub const ALOOPER_POLL_WAKE: libc::c_int = -1;
-pub const ALOOPER_POLL_CALLBACK: libc::c_int = -2;
-pub const ALOOPER_POLL_TIMEOUT: libc::c_int = -3;
-pub const ALOOPER_POLL_ERROR: libc::c_int = -4;
-
-pub const ALOOPER_EVENT_INPUT: libc::c_int = 1 << 0;
-pub const ALOOPER_EVENT_OUTPUT: libc::c_int = 1 << 1;
-pub const ALOOPER_EVENT_ERROR: libc::c_int = 1 << 2;
-pub const ALOOPER_EVENT_HANGUP: libc::c_int = 1 << 3;
-pub const ALOOPER_EVENT_INVALID: libc::c_int = 1 << 4;
-
-pub type ALooper_callbackFunc =
-    extern "C" fn(libc::c_int, libc::c_int, *mut libc::c_void) -> libc::c_int;

src/platform_impl/android/mod.rs

@@ -1,440 +0,0 @@
-#![cfg(target_os = "android")]
-
-extern crate android_glue;
-
-mod ffi;
-
-use std::{
-    cell::RefCell,
-    collections::VecDeque,
-    fmt,
-    os::raw::c_void,
-    sync::mpsc::{channel, Receiver},
-};
-
-use crate::{
-    error::{ExternalError, NotSupportedError},
-    events::{Touch, TouchPhase},
-    window::MonitorHandle as RootMonitorHandle,
-    CreationError, CursorIcon, Event, LogicalPosition, LogicalSize, PhysicalPosition, PhysicalSize,
-    WindowAttributes, WindowEvent, WindowId as RootWindowId,
-};
-use raw_window_handle::{android::AndroidHandle, RawWindowHandle};
-use CreationError::OsError;
-
-pub type OsError = std::io::Error;
-
-pub struct EventLoop {
-    event_rx: Receiver<android_glue::Event>,
-    suspend_callback: RefCell<Option<Box<dyn Fn(bool) -> ()>>>,
-}
-
-#[derive(Clone)]
-pub struct EventLoopProxy;
-
-impl EventLoop {
-    pub fn new() -> EventLoop {
-        let (tx, rx) = channel();
-        android_glue::add_sender(tx);
-        EventLoop {
-            event_rx: rx,
-            suspend_callback: Default::default(),
-        }
-    }
-
-    #[inline]
-    pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
-        let mut rb = VecDeque::with_capacity(1);
-        rb.push_back(MonitorHandle);
-        rb
-    }
-
-    #[inline]
-    pub fn primary_monitor(&self) -> MonitorHandle {
-        MonitorHandle
-    }
-
-    pub fn poll_events<F>(&mut self, mut callback: F)
-    where
-        F: FnMut(::Event),
-    {
-        while let Ok(event) = self.event_rx.try_recv() {
-            let e = match event {
-                android_glue::Event::EventMotion(motion) => {
-                    let dpi_factor = MonitorHandle.hidpi_factor();
-                    let location = LogicalPosition::from_physical(
-                        (motion.x as f64, motion.y as f64),
-                        dpi_factor,
-                    );
-                    Some(Event::WindowEvent {
-                        window_id: RootWindowId(WindowId),
-                        event: WindowEvent::Touch(Touch {
-                            phase: match motion.action {
-                                android_glue::MotionAction::Down => TouchPhase::Started,
-                                android_glue::MotionAction::Move => TouchPhase::Moved,
-                                android_glue::MotionAction::Up => TouchPhase::Ended,
-                                android_glue::MotionAction::Cancel => TouchPhase::Cancelled,
-                            },
-                            location,
-                            force: None, // TODO
-                            id: motion.pointer_id as u64,
-                            device_id: DEVICE_ID,
-                        }),
-                    })
-                }
-                android_glue::Event::InitWindow => {
-                    // The activity went to foreground.
-                    if let Some(cb) = self.suspend_callback.borrow().as_ref() {
-                        (*cb)(false);
-                    }
-                    Some(Event::Resumed)
-                }
-                android_glue::Event::TermWindow => {
-                    // The activity went to background.
-                    if let Some(cb) = self.suspend_callback.borrow().as_ref() {
-                        (*cb)(true);
-                    }
-                    Some(Event::Suspended)
-                }
-                android_glue::Event::WindowResized | android_glue::Event::ConfigChanged => {
-                    // Activity Orientation changed or resized.
-                    let native_window = unsafe { android_glue::native_window() };
-                    if native_window.is_null() {
-                        None
-                    } else {
-                        let dpi_factor = MonitorHandle.hidpi_factor();
-                        let physical_size = MonitorHandle.size();
-                        let size = LogicalSize::from_physical(physical_size, dpi_factor);
-                        Some(Event::WindowEvent {
-                            window_id: RootWindowId(WindowId),
-                            event: WindowEvent::Resized(size),
-                        })
-                    }
-                }
-                android_glue::Event::WindowRedrawNeeded => {
-                    // The activity needs to be redrawn.
-                    Some(Event::WindowEvent {
-                        window_id: RootWindowId(WindowId),
-                        event: WindowEvent::Redraw,
-                    })
-                }
-                android_glue::Event::Wake => Some(Event::Awakened),
-                _ => None,
-            };
-
-            if let Some(event) = e {
-                callback(event);
-            }
-        }
-    }
-
-    pub fn set_suspend_callback(&self, cb: Option<Box<dyn Fn(bool) -> ()>>) {
-        *self.suspend_callback.borrow_mut() = cb;
-    }
-
-    pub fn run_forever<F>(&mut self, mut callback: F)
-    where
-        F: FnMut(::Event) -> ::ControlFlow,
-    {
-        // Yeah that's a very bad implementation.
-        loop {
-            let mut control_flow = ::ControlFlow::Continue;
-            self.poll_events(|e| {
-                if let ::ControlFlow::Break = callback(e) {
-                    control_flow = ::ControlFlow::Break;
-                }
-            });
-            if let ::ControlFlow::Break = control_flow {
-                break;
-            }
-            ::std::thread::sleep(::std::time::Duration::from_millis(5));
-        }
-    }
-
-    pub fn create_proxy(&self) -> EventLoopProxy {
-        EventLoopProxy
-    }
-}
-
-impl EventLoopProxy {
-    pub fn wakeup(&self) -> Result<(), ::EventLoopClosed> {
-        android_glue::wake_event_loop();
-        Ok(())
-    }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct WindowId;
-
-impl WindowId {
-    pub unsafe fn dummy() -> Self {
-        WindowId
-    }
-}
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct DeviceId;
-
-impl DeviceId {
-    pub unsafe fn dummy() -> Self {
-        DeviceId
-    }
-}
-
-pub struct Window {
-    native_window: *const c_void,
-}
-
-#[derive(Clone)]
-pub struct MonitorHandle;
-
-impl fmt::Debug for MonitorHandle {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        #[derive(Debug)]
-        struct MonitorHandle {
-            name: Option<String>,
-            dimensions: PhysicalSize,
-            position: PhysicalPosition,
-            hidpi_factor: f64,
-        }
-
-        let monitor_id_proxy = MonitorHandle {
-            name: self.name(),
-            dimensions: self.size(),
-            position: self.outer_position(),
-            hidpi_factor: self.hidpi_factor(),
-        };
-
-        monitor_id_proxy.fmt(f)
-    }
-}
-
-impl MonitorHandle {
-    #[inline]
-    pub fn name(&self) -> Option<String> {
-        Some("Primary".to_string())
-    }
-
-    #[inline]
-    pub fn size(&self) -> PhysicalSize {
-        unsafe {
-            let window = android_glue::native_window();
-            (
-                ffi::ANativeWindow_getWidth(window) as f64,
-                ffi::ANativeWindow_getHeight(window) as f64,
-            )
-                .into()
-        }
-    }
-
-    #[inline]
-    pub fn outer_position(&self) -> PhysicalPosition {
-        // Android assumes single screen
-        (0, 0).into()
-    }
-
-    #[inline]
-    pub fn hidpi_factor(&self) -> f64 {
-        1.0
-    }
-}
-
-#[derive(Clone, Default)]
-pub struct PlatformSpecificWindowBuilderAttributes;
-#[derive(Clone, Default)]
-pub struct PlatformSpecificHeadlessBuilderAttributes;
-
-impl Window {
-    pub fn new(
-        _: &EventLoop,
-        win_attribs: WindowAttributes,
-        _: PlatformSpecificWindowBuilderAttributes,
-    ) -> Result<Window, CreationError> {
-        let native_window = unsafe { android_glue::native_window() };
-        if native_window.is_null() {
-            return Err(OsError(format!("Android's native window is null")));
-        }
-
-        android_glue::set_multitouch(true);
-
-        Ok(Window {
-            native_window: native_window as *const _,
-        })
-    }
-
-    #[inline]
-    pub fn native_window(&self) -> *const c_void {
-        self.native_window
-    }
-
-    #[inline]
-    pub fn set_title(&self, _: &str) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn show(&self) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn hide(&self) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn outer_position(&self) -> Option<LogicalPosition> {
-        // N/A
-        None
-    }
-
-    #[inline]
-    pub fn inner_position(&self) -> Option<LogicalPosition> {
-        // N/A
-        None
-    }
-
-    #[inline]
-    pub fn set_outer_position(&self, _position: LogicalPosition) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_min_inner_size(&self, _dimensions: Option<LogicalSize>) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_max_inner_size(&self, _dimensions: Option<LogicalSize>) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_resizable(&self, _resizable: bool) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn inner_size(&self) -> Option<LogicalSize> {
-        if self.native_window.is_null() {
-            None
-        } else {
-            let dpi_factor = self.hidpi_factor();
-            let physical_size = self.current_monitor().size();
-            Some(LogicalSize::from_physical(physical_size, dpi_factor))
-        }
-    }
-
-    #[inline]
-    pub fn outer_size(&self) -> Option<LogicalSize> {
-        self.inner_size()
-    }
-
-    #[inline]
-    pub fn set_inner_size(&self, _size: LogicalSize) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn hidpi_factor(&self) -> f64 {
-        self.current_monitor().hidpi_factor()
-    }
-
-    #[inline]
-    pub fn set_cursor_icon(&self, _: CursorIcon) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_cursor_grab(&self, _grab: bool) -> Result<(), ExternalError> {
-        Err(ExternalError::NotSupported(NotSupportedError::new()))
-    }
-
-    #[inline]
-    pub fn hide_cursor(&self, _hide: bool) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_cursor_position(&self, _position: LogicalPosition) -> Result<(), ExternalError> {
-        Err(ExternalError::NotSupported(NotSupportedError::new()))
-    }
-
-    #[inline]
-    pub fn set_maximized(&self, _maximized: bool) {
-        // N/A
-        // Android has single screen maximized apps so nothing to do
-    }
-
-    #[inline]
-    pub fn fullscreen(&self) -> Option<RootMonitorHandle> {
-        // N/A
-        // Android has single screen maximized apps so nothing to do
-        None
-    }
-
-    #[inline]
-    pub fn set_fullscreen(&self, _monitor: Option<RootMonitorHandle>) {
-        // N/A
-        // Android has single screen maximized apps so nothing to do
-    }
-
-    #[inline]
-    pub fn set_decorations(&self, _decorations: bool) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_always_on_top(&self, _always_on_top: bool) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_window_icon(&self, _icon: Option<::Icon>) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn set_ime_position(&self, _spot: LogicalPosition) {
-        // N/A
-    }
-
-    #[inline]
-    pub fn current_monitor(&self) -> RootMonitorHandle {
-        RootMonitorHandle {
-            inner: MonitorHandle,
-        }
-    }
-
-    #[inline]
-    pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
-        let mut rb = VecDeque::with_capacity(1);
-        rb.push_back(MonitorHandle);
-        rb
-    }
-
-    #[inline]
-    pub fn primary_monitor(&self) -> MonitorHandle {
-        MonitorHandle
-    }
-
-    #[inline]
-    pub fn id(&self) -> WindowId {
-        WindowId
-    }
-
-    #[inline]
-    pub fn raw_window_handle(&self) -> RawWindowHandle {
-        let handle = AndroidHandle {
-            a_native_window: self.native_window,
-            ..WindowsHandle::empty()
-        };
-        RawWindowHandle::Android(handle)
-    }
-}
-
-unsafe impl Send for Window {}
-unsafe impl Sync for Window {}
-
-// Constant device ID, to be removed when this backend is updated to report real device IDs.
-const DEVICE_ID: ::DeviceId = ::DeviceId(DeviceId);

src/platform_impl/ios/app_state.rs

@@ -1,958 +0,0 @@
-#![deny(unused_results)]
-
-use std::{
-    cell::{RefCell, RefMut},
-    collections::HashSet,
-    mem,
-    os::raw::c_void,
-    ptr,
-    time::Instant,
-};
-
-use objc::runtime::{BOOL, YES};
-
-use crate::{
-    event::{Event, StartCause, WindowEvent},
-    event_loop::ControlFlow,
-    platform_impl::platform::{
-        event_loop::{EventHandler, Never},
-        ffi::{
-            id, kCFRunLoopCommonModes, CFAbsoluteTimeGetCurrent, CFRelease, CFRunLoopAddTimer,
-            CFRunLoopGetMain, CFRunLoopRef, CFRunLoopTimerCreate, CFRunLoopTimerInvalidate,
-            CFRunLoopTimerRef, CFRunLoopTimerSetNextFireDate, NSInteger, NSOperatingSystemVersion,
-            NSUInteger,
-        },
-    },
-    window::WindowId as RootWindowId,
-};
-
-macro_rules! bug {
-    ($($msg:tt)*) => {
-        panic!("winit iOS bug, file an issue: {}", format!($($msg)*))
-    };
-}
-
-macro_rules! bug_assert {
-    ($test:expr, $($msg:tt)*) => {
-        assert!($test, "winit iOS bug, file an issue: {}", format!($($msg)*))
-    };
-}
-
-enum UserCallbackTransitionResult<'a> {
-    Success {
-        event_handler: Box<dyn EventHandler>,
-        active_control_flow: ControlFlow,
-        processing_redraws: bool,
-    },
-    ReentrancyPrevented {
-        queued_events: &'a mut Vec<Event<Never>>,
-    },
-}
-
-impl Event<Never> {
-    fn is_redraw(&self) -> bool {
-        if let Event::WindowEvent {
-            window_id: _,
-            event: WindowEvent::RedrawRequested,
-        } = self
-        {
-            true
-        } else {
-            false
-        }
-    }
-}
-
-// this is the state machine for the app lifecycle
-#[derive(Debug)]
-#[must_use = "dropping `AppStateImpl` without inspecting it is probably a bug"]
-enum AppStateImpl {
-    NotLaunched {
-        queued_windows: Vec<id>,
-        queued_events: Vec<Event<Never>>,
-        queued_gpu_redraws: HashSet<id>,
-    },
-    Launching {
-        queued_windows: Vec<id>,
-        queued_events: Vec<Event<Never>>,
-        queued_event_handler: Box<dyn EventHandler>,
-        queued_gpu_redraws: HashSet<id>,
-    },
-    ProcessingEvents {
-        event_handler: Box<dyn EventHandler>,
-        queued_gpu_redraws: HashSet<id>,
-        active_control_flow: ControlFlow,
-    },
-    // special state to deal with reentrancy and prevent mutable aliasing.
-    InUserCallback {
-        queued_events: Vec<Event<Never>>,
-        queued_gpu_redraws: HashSet<id>,
-    },
-    ProcessingRedraws {
-        event_handler: Box<dyn EventHandler>,
-        active_control_flow: ControlFlow,
-    },
-    Waiting {
-        waiting_event_handler: Box<dyn EventHandler>,
-        start: Instant,
-    },
-    PollFinished {
-        waiting_event_handler: Box<dyn EventHandler>,
-    },
-    Terminated,
-}
-
-struct AppState {
-    // This should never be `None`, except for briefly during a state transition.
-    app_state: Option<AppStateImpl>,
-    control_flow: ControlFlow,
-    waker: EventLoopWaker,
-}
-
-impl Drop for AppState {
-    fn drop(&mut self) {
-        match self.state_mut() {
-            &mut AppStateImpl::NotLaunched {
-                ref mut queued_windows,
-                ..
-            }
-            | &mut AppStateImpl::Launching {
-                ref mut queued_windows,
-                ..
-            } => {
-                for &mut window in queued_windows {
-                    unsafe {
-                        let () = msg_send![window, release];
-                    }
-                }
-            }
-            _ => {}
-        }
-    }
-}
-
-impl AppState {
-    // requires main thread
-    unsafe fn get_mut() -> RefMut<'static, AppState> {
-        // basically everything in UIKit requires the main thread, so it's pointless to use the
-        // std::sync APIs.
-        // must be mut because plain `static` requires `Sync`
-        static mut APP_STATE: RefCell<Option<AppState>> = RefCell::new(None);
-
-        if cfg!(debug_assertions) {
-            assert_main_thread!(
-                "bug in winit: `AppState::get_mut()` can only be called on the main thread"
-            );
-        }
-        let mut guard = APP_STATE.borrow_mut();
-        if guard.is_none() {
-            #[inline(never)]
-            #[cold]
-            unsafe fn init_guard(guard: &mut RefMut<'static, Option<AppState>>) {
-                let waker = EventLoopWaker::new(CFRunLoopGetMain());
-                **guard = Some(AppState {
-                    app_state: Some(AppStateImpl::NotLaunched {
-                        queued_windows: Vec::new(),
-                        queued_events: Vec::new(),
-                        queued_gpu_redraws: HashSet::new(),
-                    }),
-                    control_flow: ControlFlow::default(),
-                    waker,
-                });
-            }
-            init_guard(&mut guard)
-        }
-        RefMut::map(guard, |state| state.as_mut().unwrap())
-    }
-
-    fn state(&self) -> &AppStateImpl {
-        match &self.app_state {
-            Some(ref state) => state,
-            None => bug!("`AppState` previously failed a state transition"),
-        }
-    }
-
-    fn state_mut(&mut self) -> &mut AppStateImpl {
-        match &mut self.app_state {
-            Some(ref mut state) => state,
-            None => bug!("`AppState` previously failed a state transition"),
-        }
-    }
-
-    fn take_state(&mut self) -> AppStateImpl {
-        match self.app_state.take() {
-            Some(state) => state,
-            None => bug!("`AppState` previously failed a state transition"),
-        }
-    }
-
-    fn set_state(&mut self, new_state: AppStateImpl) {
-        bug_assert!(
-            self.app_state.is_none(),
-            "attempted to set an `AppState` without calling `take_state` first {:?}",
-            self.app_state
-        );
-        self.app_state = Some(new_state)
-    }
-
-    fn replace_state(&mut self, new_state: AppStateImpl) -> AppStateImpl {
-        match &mut self.app_state {
-            Some(ref mut state) => mem::replace(state, new_state),
-            None => bug!("`AppState` previously failed a state transition"),
-        }
-    }
-
-    fn has_launched(&self) -> bool {
-        match self.state() {
-            &AppStateImpl::NotLaunched { .. } | &AppStateImpl::Launching { .. } => false,
-            _ => true,
-        }
-    }
-
-    fn will_launch_transition(&mut self, queued_event_handler: Box<dyn EventHandler>) {
-        let (queued_windows, queued_events, queued_gpu_redraws) = match self.take_state() {
-            AppStateImpl::NotLaunched {
-                queued_windows,
-                queued_events,
-                queued_gpu_redraws,
-            } => (queued_windows, queued_events, queued_gpu_redraws),
-            s => bug!("unexpected state {:?}", s),
-        };
-        self.set_state(AppStateImpl::Launching {
-            queued_windows,
-            queued_events,
-            queued_event_handler,
-            queued_gpu_redraws,
-        });
-    }
-
-    fn did_finish_launching_transition(&mut self) -> (Vec<id>, Vec<Event<Never>>) {
-        let (windows, events, event_handler, queued_gpu_redraws) = match self.take_state() {
-            AppStateImpl::Launching {
-                queued_windows,
-                queued_events,
-                queued_event_handler,
-                queued_gpu_redraws,
-            } => (
-                queued_windows,
-                queued_events,
-                queued_event_handler,
-                queued_gpu_redraws,
-            ),
-            s => bug!("unexpected state {:?}", s),
-        };
-        self.set_state(AppStateImpl::ProcessingEvents {
-            event_handler,
-            active_control_flow: ControlFlow::Poll,
-            queued_gpu_redraws,
-        });
-        (windows, events)
-    }
-
-    fn wakeup_transition(&mut self) -> Option<Event<Never>> {
-        // before `AppState::did_finish_launching` is called, pretend there is no running
-        // event loop.
-        if !self.has_launched() {
-            return None;
-        }
-
-        let (event_handler, event) = match (self.control_flow, self.take_state()) {
-            (
-                ControlFlow::Poll,
-                AppStateImpl::PollFinished {
-                    waiting_event_handler,
-                },
-            ) => (waiting_event_handler, Event::NewEvents(StartCause::Poll)),
-            (
-                ControlFlow::Wait,
-                AppStateImpl::Waiting {
-                    waiting_event_handler,
-                    start,
-                },
-            ) => (
-                waiting_event_handler,
-                Event::NewEvents(StartCause::WaitCancelled {
-                    start,
-                    requested_resume: None,
-                }),
-            ),
-            (
-                ControlFlow::WaitUntil(requested_resume),
-                AppStateImpl::Waiting {
-                    waiting_event_handler,
-                    start,
-                },
-            ) => {
-                let event = if Instant::now() >= requested_resume {
-                    Event::NewEvents(StartCause::ResumeTimeReached {
-                        start,
-                        requested_resume,
-                    })
-                } else {
-                    Event::NewEvents(StartCause::WaitCancelled {
-                        start,
-                        requested_resume: Some(requested_resume),
-                    })
-                };
-                (waiting_event_handler, event)
-            }
-            (ControlFlow::Exit, _) => bug!("unexpected `ControlFlow` `Exit`"),
-            s => bug!("`EventHandler` unexpectedly woke up {:?}", s),
-        };
-
-        self.set_state(AppStateImpl::ProcessingEvents {
-            event_handler,
-            queued_gpu_redraws: Default::default(),
-            active_control_flow: self.control_flow,
-        });
-        Some(event)
-    }
-
-    fn try_user_callback_transition(&mut self) -> UserCallbackTransitionResult<'_> {
-        // If we're not able to process an event due to recursion or `Init` not having been sent out
-        // yet, then queue the events up.
-        match self.state_mut() {
-            &mut AppStateImpl::Launching {
-                ref mut queued_events,
-                ..
-            }
-            | &mut AppStateImpl::NotLaunched {
-                ref mut queued_events,
-                ..
-            }
-            | &mut AppStateImpl::InUserCallback {
-                ref mut queued_events,
-                ..
-            } => {
-                // A lifetime cast: early returns are not currently handled well with NLL, but
-                // polonius handles them well. This transmute is a safe workaround.
-                return unsafe {
-                    mem::transmute::<
-                        UserCallbackTransitionResult<'_>,
-                        UserCallbackTransitionResult<'_>,
-                    >(UserCallbackTransitionResult::ReentrancyPrevented {
-                        queued_events,
-                    })
-                };
-            }
-
-            &mut AppStateImpl::ProcessingEvents { .. }
-            | &mut AppStateImpl::ProcessingRedraws { .. } => {}
-
-            s @ &mut AppStateImpl::PollFinished { .. }
-            | s @ &mut AppStateImpl::Waiting { .. }
-            | s @ &mut AppStateImpl::Terminated => {
-                bug!("unexpected attempted to process an event {:?}", s)
-            }
-        }
-
-        let (event_handler, queued_gpu_redraws, active_control_flow, processing_redraws) =
-            match self.take_state() {
-                AppStateImpl::Launching { .. }
-                | AppStateImpl::NotLaunched { .. }
-                | AppStateImpl::InUserCallback { .. } => unreachable!(),
-                AppStateImpl::ProcessingEvents {
-                    event_handler,
-                    queued_gpu_redraws,
-                    active_control_flow,
-                } => (
-                    event_handler,
-                    queued_gpu_redraws,
-                    active_control_flow,
-                    false,
-                ),
-                AppStateImpl::ProcessingRedraws {
-                    event_handler,
-                    active_control_flow,
-                } => (event_handler, Default::default(), active_control_flow, true),
-                AppStateImpl::PollFinished { .. }
-                | AppStateImpl::Waiting { .. }
-                | AppStateImpl::Terminated => unreachable!(),
-            };
-        self.set_state(AppStateImpl::InUserCallback {
-            queued_events: Vec::new(),
-            queued_gpu_redraws,
-        });
-        UserCallbackTransitionResult::Success {
-            event_handler,
-            active_control_flow,
-            processing_redraws,
-        }
-    }
-
-    fn main_events_cleared_transition(&mut self) -> HashSet<id> {
-        let (event_handler, queued_gpu_redraws, active_control_flow) = match self.take_state() {
-            AppStateImpl::ProcessingEvents {
-                event_handler,
-                queued_gpu_redraws,
-                active_control_flow,
-            } => (event_handler, queued_gpu_redraws, active_control_flow),
-            s => bug!("unexpected state {:?}", s),
-        };
-        self.set_state(AppStateImpl::ProcessingRedraws {
-            event_handler,
-            active_control_flow,
-        });
-        queued_gpu_redraws
-    }
-
-    fn events_cleared_transition(&mut self) {
-        if !self.has_launched() {
-            return;
-        }
-        let (waiting_event_handler, old) = match self.take_state() {
-            AppStateImpl::ProcessingRedraws {
-                event_handler,
-                active_control_flow,
-            } => (event_handler, active_control_flow),
-            s => bug!("unexpected state {:?}", s),
-        };
-
-        let new = self.control_flow;
-        match (old, new) {
-            (ControlFlow::Poll, ControlFlow::Poll) => self.set_state(AppStateImpl::PollFinished {
-                waiting_event_handler,
-            }),
-            (ControlFlow::Wait, ControlFlow::Wait) => {
-                let start = Instant::now();
-                self.set_state(AppStateImpl::Waiting {
-                    waiting_event_handler,
-                    start,
-                });
-            }
-            (ControlFlow::WaitUntil(old_instant), ControlFlow::WaitUntil(new_instant))
-                if old_instant == new_instant =>
-            {
-                let start = Instant::now();
-                self.set_state(AppStateImpl::Waiting {
-                    waiting_event_handler,
-                    start,
-                });
-            }
-            (_, ControlFlow::Wait) => {
-                let start = Instant::now();
-                self.set_state(AppStateImpl::Waiting {
-                    waiting_event_handler,
-                    start,
-                });
-                self.waker.stop()
-            }
-            (_, ControlFlow::WaitUntil(new_instant)) => {
-                let start = Instant::now();
-                self.set_state(AppStateImpl::Waiting {
-                    waiting_event_handler,
-                    start,
-                });
-                self.waker.start_at(new_instant)
-            }
-            (_, ControlFlow::Poll) => {
-                self.set_state(AppStateImpl::PollFinished {
-                    waiting_event_handler,
-                });
-                self.waker.start()
-            }
-            (_, ControlFlow::Exit) => {
-                // https://developer.apple.com/library/archive/qa/qa1561/_index.html
-                // it is not possible to quit an iOS app gracefully and programatically
-                warn!("`ControlFlow::Exit` ignored on iOS");
-                self.control_flow = old
-            }
-        }
-    }
-
-    fn terminated_transition(&mut self) -> Box<dyn EventHandler> {
-        match self.replace_state(AppStateImpl::Terminated) {
-            AppStateImpl::ProcessingEvents { event_handler, .. } => event_handler,
-            s => bug!(
-                "`LoopDestroyed` happened while not processing events {:?}",
-                s
-            ),
-        }
-    }
-}
-
-// requires main thread and window is a UIWindow
-// retains window
-pub unsafe fn set_key_window(window: id) {
-    bug_assert!(
-        {
-            let is_window: BOOL = msg_send![window, isKindOfClass: class!(UIWindow)];
-            is_window == YES
-        },
-        "set_key_window called with an incorrect type"
-    );
-    let mut this = AppState::get_mut();
-    match this.state_mut() {
-        &mut AppStateImpl::NotLaunched {
-            ref mut queued_windows,
-            ..
-        } => return queued_windows.push(msg_send![window, retain]),
-        &mut AppStateImpl::ProcessingEvents { .. }
-        | &mut AppStateImpl::InUserCallback { .. }
-        | &mut AppStateImpl::ProcessingRedraws { .. } => {}
-        s @ &mut AppStateImpl::Launching { .. }
-        | s @ &mut AppStateImpl::Waiting { .. }
-        | s @ &mut AppStateImpl::PollFinished { .. } => bug!("unexpected state {:?}", s),
-        &mut AppStateImpl::Terminated => {
-            panic!("Attempt to create a `Window` after the app has terminated")
-        }
-    }
-    drop(this);
-    msg_send![window, makeKeyAndVisible]
-}
-
-// requires main thread and window is a UIWindow
-// retains window
-pub unsafe fn queue_gl_or_metal_redraw(window: id) {
-    bug_assert!(
-        {
-            let is_window: BOOL = msg_send![window, isKindOfClass: class!(UIWindow)];
-            is_window == YES
-        },
-        "set_key_window called with an incorrect type"
-    );
-    let mut this = AppState::get_mut();
-    match this.state_mut() {
-        &mut AppStateImpl::NotLaunched {
-            ref mut queued_gpu_redraws,
-            ..
-        }
-        | &mut AppStateImpl::Launching {
-            ref mut queued_gpu_redraws,
-            ..
-        }
-        | &mut AppStateImpl::ProcessingEvents {
-            ref mut queued_gpu_redraws,
-            ..
-        }
-        | &mut AppStateImpl::InUserCallback {
-            ref mut queued_gpu_redraws,
-            ..
-        } => drop(queued_gpu_redraws.insert(window)),
-        s @ &mut AppStateImpl::ProcessingRedraws { .. }
-        | s @ &mut AppStateImpl::Waiting { .. }
-        | s @ &mut AppStateImpl::PollFinished { .. } => bug!("unexpected state {:?}", s),
-        &mut AppStateImpl::Terminated => {
-            panic!("Attempt to create a `Window` after the app has terminated")
-        }
-    }
-    drop(this);
-}
-
-// requires main thread
-pub unsafe fn will_launch(queued_event_handler: Box<dyn EventHandler>) {
-    AppState::get_mut().will_launch_transition(queued_event_handler)
-}
-
-// requires main thread
-pub unsafe fn did_finish_launching() {
-    let mut this = AppState::get_mut();
-    let windows = match this.state_mut() {
-        AppStateImpl::Launching { queued_windows, .. } => mem::replace(queued_windows, Vec::new()),
-        s => bug!("unexpected state {:?}", s),
-    };
-
-    // start waking up the event loop now!
-    bug_assert!(
-        this.control_flow == ControlFlow::Poll,
-        "unexpectedly not setup to `Poll` on launch!"
-    );
-    this.waker.start();
-
-    // have to drop RefMut because the window setup code below can trigger new events
-    drop(this);
-
-    for window in windows {
-        let count: NSUInteger = msg_send![window, retainCount];
-        // make sure the window is still referenced
-        if count > 1 {
-            // Do a little screen dance here to account for windows being created before
-            // `UIApplicationMain` is called. This fixes visual issues such as being
-            // offcenter and sized incorrectly. Additionally, to fix orientation issues, we
-            // gotta reset the `rootViewController`.
-            //
-            // relevant iOS log:
-            // ```
-            // [ApplicationLifecycle] Windows were created before application initialzation
-            // completed. This may result in incorrect visual appearance.
-            // ```
-            let screen: id = msg_send![window, screen];
-            let _: id = msg_send![screen, retain];
-            let () = msg_send![window, setScreen:0 as id];
-            let () = msg_send![window, setScreen: screen];
-            let () = msg_send![screen, release];
-            let controller: id = msg_send![window, rootViewController];
-            let () = msg_send![window, setRootViewController:ptr::null::<()>()];
-            let () = msg_send![window, setRootViewController: controller];
-            let () = msg_send![window, makeKeyAndVisible];
-        }
-        let () = msg_send![window, release];
-    }
-
-    let (windows, events) = AppState::get_mut().did_finish_launching_transition();
-
-    let events = std::iter::once(Event::NewEvents(StartCause::Init)).chain(events);
-    handle_nonuser_events(events);
-
-    // the above window dance hack, could possibly trigger new windows to be created.
-    // we can just set those windows up normally, as they were created after didFinishLaunching
-    for window in windows {
-        let count: NSUInteger = msg_send![window, retainCount];
-        // make sure the window is still referenced
-        if count > 1 {
-            let () = msg_send![window, makeKeyAndVisible];
-        }
-        let () = msg_send![window, release];
-    }
-}
-
-// requires main thread
-// AppState::did_finish_launching handles the special transition `Init`
-pub unsafe fn handle_wakeup_transition() {
-    let mut this = AppState::get_mut();
-    let wakeup_event = match this.wakeup_transition() {
-        None => return,
-        Some(wakeup_event) => wakeup_event,
-    };
-    drop(this);
-
-    handle_nonuser_event(wakeup_event)
-}
-
-// requires main thread
-pub unsafe fn handle_nonuser_event(event: Event<Never>) {
-    handle_nonuser_events(std::iter::once(event))
-}
-
-// requires main thread
-pub unsafe fn handle_nonuser_events<I: IntoIterator<Item = Event<Never>>>(events: I) {
-    let mut this = AppState::get_mut();
-    let (mut event_handler, active_control_flow, processing_redraws) =
-        match this.try_user_callback_transition() {
-            UserCallbackTransitionResult::ReentrancyPrevented { queued_events } => {
-                queued_events.extend(events);
-                return;
-            }
-            UserCallbackTransitionResult::Success {
-                event_handler,
-                active_control_flow,
-                processing_redraws,
-            } => (event_handler, active_control_flow, processing_redraws),
-        };
-    let mut control_flow = this.control_flow;
-    drop(this);
-
-    for event in events {
-        if !processing_redraws && event.is_redraw() {
-            log::info!("processing `RedrawRequested` during the main event loop");
-        } else if processing_redraws && !event.is_redraw() {
-            log::warn!(
-                "processing non `RedrawRequested` event after the main event loop: {:#?}",
-                event
-            );
-        }
-        event_handler.handle_nonuser_event(event, &mut control_flow)
-    }
-
-    loop {
-        let mut this = AppState::get_mut();
-        let queued_events = match this.state_mut() {
-            &mut AppStateImpl::InUserCallback {
-                ref mut queued_events,
-                queued_gpu_redraws: _,
-            } => mem::replace(queued_events, Vec::new()),
-            s => bug!("unexpected state {:?}", s),
-        };
-        if queued_events.is_empty() {
-            let queued_gpu_redraws = match this.take_state() {
-                AppStateImpl::InUserCallback {
-                    queued_events: _,
-                    queued_gpu_redraws,
-                } => queued_gpu_redraws,
-                _ => unreachable!(),
-            };
-            this.app_state = Some(if processing_redraws {
-                bug_assert!(
-                    queued_gpu_redraws.is_empty(),
-                    "redraw queued while processing redraws"
-                );
-                AppStateImpl::ProcessingRedraws {
-                    event_handler,
-                    active_control_flow,
-                }
-            } else {
-                AppStateImpl::ProcessingEvents {
-                    event_handler,
-                    queued_gpu_redraws,
-                    active_control_flow,
-                }
-            });
-            this.control_flow = control_flow;
-            break;
-        }
-        drop(this);
-
-        for event in queued_events {
-            if !processing_redraws && event.is_redraw() {
-                log::info!("processing `RedrawRequested` during the main event loop");
-            } else if processing_redraws && !event.is_redraw() {
-                log::warn!(
-                    "processing non-`RedrawRequested` event after the main event loop: {:#?}",
-                    event
-                );
-            }
-            event_handler.handle_nonuser_event(event, &mut control_flow)
-        }
-    }
-}
-
-// requires main thread
-unsafe fn handle_user_events() {
-    let mut this = AppState::get_mut();
-    let mut control_flow = this.control_flow;
-    let (mut event_handler, active_control_flow, processing_redraws) =
-        match this.try_user_callback_transition() {
-            UserCallbackTransitionResult::ReentrancyPrevented { .. } => {
-                bug!("unexpected attempted to process an event")
-            }
-            UserCallbackTransitionResult::Success {
-                event_handler,
-                active_control_flow,
-                processing_redraws,
-            } => (event_handler, active_control_flow, processing_redraws),
-        };
-    if processing_redraws {
-        bug!("user events attempted to be sent out while `ProcessingRedraws`");
-    }
-    drop(this);
-
-    event_handler.handle_user_events(&mut control_flow);
-
-    loop {
-        let mut this = AppState::get_mut();
-        let queued_events = match this.state_mut() {
-            &mut AppStateImpl::InUserCallback {
-                ref mut queued_events,
-                queued_gpu_redraws: _,
-            } => mem::replace(queued_events, Vec::new()),
-            s => bug!("unexpected state {:?}", s),
-        };
-        if queued_events.is_empty() {
-            let queued_gpu_redraws = match this.take_state() {
-                AppStateImpl::InUserCallback {
-                    queued_events: _,
-                    queued_gpu_redraws,
-                } => queued_gpu_redraws,
-                _ => unreachable!(),
-            };
-            this.app_state = Some(AppStateImpl::ProcessingEvents {
-                event_handler,
-                queued_gpu_redraws,
-                active_control_flow,
-            });
-            this.control_flow = control_flow;
-            break;
-        }
-        drop(this);
-
-        for event in queued_events {
-            event_handler.handle_nonuser_event(event, &mut control_flow)
-        }
-        event_handler.handle_user_events(&mut control_flow);
-    }
-}
-
-// requires main thread
-pub unsafe fn handle_main_events_cleared() {
-    let mut this = AppState::get_mut();
-    if !this.has_launched() {
-        return;
-    }
-    match this.state_mut() {
-        &mut AppStateImpl::ProcessingEvents { .. } => {}
-        _ => bug!("`ProcessingRedraws` happened unexpectedly"),
-    };
-    drop(this);
-
-    // User events are always sent out at the end of the "MainEventLoop"
-    handle_user_events();
-    handle_nonuser_event(Event::EventsCleared);
-
-    let mut this = AppState::get_mut();
-    let redraw_events = this
-        .main_events_cleared_transition()
-        .into_iter()
-        .map(|window| Event::WindowEvent {
-            window_id: RootWindowId(window.into()),
-            event: WindowEvent::RedrawRequested,
-        });
-    drop(this);
-
-    handle_nonuser_events(redraw_events);
-}
-
-// requires main thread
-pub unsafe fn handle_events_cleared() {
-    AppState::get_mut().events_cleared_transition();
-}
-
-// requires main thread
-pub unsafe fn terminated() {
-    let mut this = AppState::get_mut();
-    let mut event_handler = this.terminated_transition();
-    let mut control_flow = this.control_flow;
-    drop(this);
-
-    event_handler.handle_nonuser_event(Event::LoopDestroyed, &mut control_flow)
-}
-
-struct EventLoopWaker {
-    timer: CFRunLoopTimerRef,
-}
-
-impl Drop for EventLoopWaker {
-    fn drop(&mut self) {
-        unsafe {
-            CFRunLoopTimerInvalidate(self.timer);
-            CFRelease(self.timer as _);
-        }
-    }
-}
-
-impl EventLoopWaker {
-    fn new(rl: CFRunLoopRef) -> EventLoopWaker {
-        extern "C" fn wakeup_main_loop(_timer: CFRunLoopTimerRef, _info: *mut c_void) {}
-        unsafe {
-            // Create a timer with a 0.1µs interval (1ns does not work) to mimic polling.
-            // It is initially setup with a first fire time really far into the
-            // future, but that gets changed to fire immediately in did_finish_launching
-            let timer = CFRunLoopTimerCreate(
-                ptr::null_mut(),
-                std::f64::MAX,
-                0.000_000_1,
-                0,
-                0,
-                wakeup_main_loop,
-                ptr::null_mut(),
-            );
-            CFRunLoopAddTimer(rl, timer, kCFRunLoopCommonModes);
-
-            EventLoopWaker { timer }
-        }
-    }
-
-    fn stop(&mut self) {
-        unsafe { CFRunLoopTimerSetNextFireDate(self.timer, std::f64::MAX) }
-    }
-
-    fn start(&mut self) {
-        unsafe { CFRunLoopTimerSetNextFireDate(self.timer, std::f64::MIN) }
-    }
-
-    fn start_at(&mut self, instant: Instant) {
-        let now = Instant::now();
-        if now >= instant {
-            self.start();
-        } else {
-            unsafe {
-                let current = CFAbsoluteTimeGetCurrent();
-                let duration = instant - now;
-                let fsecs =
-                    duration.subsec_nanos() as f64 / 1_000_000_000.0 + duration.as_secs() as f64;
-                CFRunLoopTimerSetNextFireDate(self.timer, current + fsecs)
-            }
-        }
-    }
-}
-
-macro_rules! os_capabilities {
-    (
-        $(
-            $(#[$attr:meta])*
-            $error_name:ident: $objc_call:literal,
-            $name:ident: $major:literal-$minor:literal
-        ),*
-        $(,)*
-    ) => {
-        #[derive(Clone, Debug)]
-        pub struct OSCapabilities {
-            $(
-                pub $name: bool,
-            )*
-
-            os_version: NSOperatingSystemVersion,
-        }
-
-        impl From<NSOperatingSystemVersion> for OSCapabilities {
-            fn from(os_version: NSOperatingSystemVersion) -> OSCapabilities {
-                $(let $name = os_version.meets_requirements($major, $minor);)*
-                OSCapabilities { $($name,)* os_version, }
-            }
-        }
-
-        impl OSCapabilities {$(
-            $(#[$attr])*
-            pub fn $error_name(&self, extra_msg: &str) {
-                log::warn!(
-                    concat!("`", $objc_call, "` requires iOS {}.{}+. This device is running iOS {}.{}.{}. {}"),
-                    $major, $minor, self.os_version.major, self.os_version.minor, self.os_version.patch,
-                    extra_msg
-                )
-            }
-        )*}
-    };
-}
-
-os_capabilities! {
-    /// https://developer.apple.com/documentation/uikit/uiview/2891103-safeareainsets?language=objc
-    #[allow(unused)] // error message unused
-    safe_area_err_msg: "-[UIView safeAreaInsets]",
-    safe_area: 11-0,
-    /// https://developer.apple.com/documentation/uikit/uiviewcontroller/2887509-setneedsupdateofhomeindicatoraut?language=objc
-    home_indicator_hidden_err_msg: "-[UIViewController setNeedsUpdateOfHomeIndicatorAutoHidden]",
-    home_indicator_hidden: 11-0,
-    /// https://developer.apple.com/documentation/uikit/uiviewcontroller/2887507-setneedsupdateofscreenedgesdefer?language=objc
-    defer_system_gestures_err_msg: "-[UIViewController setNeedsUpdateOfScreenEdgesDeferringSystem]",
-    defer_system_gestures: 11-0,
-    /// https://developer.apple.com/documentation/uikit/uiscreen/2806814-maximumframespersecond?language=objc
-    maximum_frames_per_second_err_msg: "-[UIScreen maximumFramesPerSecond]",
-    maximum_frames_per_second: 10-3,
-    /// https://developer.apple.com/documentation/uikit/uitouch/1618110-force?language=objc
-    #[allow(unused)] // error message unused
-    force_touch_err_msg: "-[UITouch force]",
-    force_touch: 9-0,
-}
-
-impl NSOperatingSystemVersion {
-    fn meets_requirements(&self, required_major: NSInteger, required_minor: NSInteger) -> bool {
-        (self.major, self.minor) >= (required_major, required_minor)
-    }
-}
-
-pub fn os_capabilities() -> OSCapabilities {
-    lazy_static! {
-        static ref OS_CAPABILITIES: OSCapabilities = {
-            let version: NSOperatingSystemVersion = unsafe {
-                let process_info: id = msg_send![class!(NSProcessInfo), processInfo];
-                let atleast_ios_8: BOOL = msg_send![
-                    process_info,
-                    respondsToSelector: sel!(operatingSystemVersion)
-                ];
-                // winit requires atleast iOS 8 because no one has put the time into supporting earlier os versions.
-                // Older iOS versions are increasingly difficult to test. For example, Xcode 11 does not support
-                // debugging on devices with an iOS version of less than 8. Another example, in order to use an iOS
-                // simulator older than iOS 8, you must download an older version of Xcode (<9), and at least Xcode 7
-                // has been tested to not even run on macOS 10.15 - Xcode 8 might?
-                //
-                // The minimum required iOS version is likely to grow in the future.
-                assert!(
-                    atleast_ios_8 == YES,
-                    "`winit` requires iOS version 8 or greater"
-                );
-                msg_send![process_info, operatingSystemVersion]
-            };
-            version.into()
-        };
-    }
-    OS_CAPABILITIES.clone()
-}

src/platform_impl/ios/event_loop.rs

@@ -1,320 +0,0 @@
-use std::{
-    collections::VecDeque,
-    ffi::c_void,
-    fmt::{self, Debug},
-    marker::PhantomData,
-    mem, ptr,
-    sync::mpsc::{self, Receiver, Sender},
-};
-
-use crate::{
-    event::Event,
-    event_loop::{
-        ControlFlow, EventLoopClosed, EventLoopWindowTarget as RootEventLoopWindowTarget,
-    },
-    platform::ios::Idiom,
-};
-
-use crate::platform_impl::platform::{
-    app_state,
-    ffi::{
-        id, kCFRunLoopAfterWaiting, kCFRunLoopBeforeWaiting, kCFRunLoopCommonModes,
-        kCFRunLoopDefaultMode, kCFRunLoopEntry, kCFRunLoopExit, nil, CFIndex, CFRelease,
-        CFRunLoopActivity, CFRunLoopAddObserver, CFRunLoopAddSource, CFRunLoopGetMain,
-        CFRunLoopObserverCreate, CFRunLoopObserverRef, CFRunLoopSourceContext,
-        CFRunLoopSourceCreate, CFRunLoopSourceInvalidate, CFRunLoopSourceRef,
-        CFRunLoopSourceSignal, CFRunLoopWakeUp, NSString, UIApplicationMain, UIUserInterfaceIdiom,
-    },
-    monitor, view, MonitorHandle,
-};
-
-pub struct EventLoopWindowTarget<T: 'static> {
-    receiver: Receiver<T>,
-    sender_to_clone: Sender<T>,
-}
-
-pub struct EventLoop<T: 'static> {
-    window_target: RootEventLoopWindowTarget<T>,
-}
-
-impl<T: 'static> EventLoop<T> {
-    pub fn new() -> EventLoop<T> {
-        static mut SINGLETON_INIT: bool = false;
-        unsafe {
-            assert_main_thread!("`EventLoop` can only be created on the main thread on iOS");
-            assert!(
-                !SINGLETON_INIT,
-                "Only one `EventLoop` is supported on iOS. \
-                 `EventLoopProxy` might be helpful"
-            );
-            SINGLETON_INIT = true;
-            view::create_delegate_class();
-        }
-
-        let (sender_to_clone, receiver) = mpsc::channel();
-
-        // this line sets up the main run loop before `UIApplicationMain`
-        setup_control_flow_observers();
-
-        EventLoop {
-            window_target: RootEventLoopWindowTarget {
-                p: EventLoopWindowTarget {
-                    receiver,
-                    sender_to_clone,
-                },
-                _marker: PhantomData,
-            },
-        }
-    }
-
-    pub fn run<F>(self, event_handler: F) -> !
-    where
-        F: 'static + FnMut(Event<T>, &RootEventLoopWindowTarget<T>, &mut ControlFlow),
-    {
-        unsafe {
-            let application: *mut c_void = msg_send![class!(UIApplication), sharedApplication];
-            assert_eq!(
-                application,
-                ptr::null_mut(),
-                "\
-                 `EventLoop` cannot be `run` after a call to `UIApplicationMain` on iOS\n\
-                 Note: `EventLoop::run` calls `UIApplicationMain` on iOS"
-            );
-            app_state::will_launch(Box::new(EventLoopHandler {
-                f: event_handler,
-                event_loop: self.window_target,
-            }));
-
-            UIApplicationMain(
-                0,
-                ptr::null(),
-                nil,
-                NSString::alloc(nil).init_str("AppDelegate"),
-            );
-            unreachable!()
-        }
-    }
-
-    pub fn create_proxy(&self) -> EventLoopProxy<T> {
-        EventLoopProxy::new(self.window_target.p.sender_to_clone.clone())
-    }
-
-    pub fn available_monitors(&self) -> VecDeque<MonitorHandle> {
-        // guaranteed to be on main thread
-        unsafe { monitor::uiscreens() }
-    }
-
-    pub fn primary_monitor(&self) -> MonitorHandle {
-        // guaranteed to be on main thread
-        unsafe { monitor::main_uiscreen() }
-    }
-
-    pub fn window_target(&self) -> &RootEventLoopWindowTarget<T> {
-        &self.window_target
-    }
-}
-
-// EventLoopExtIOS
-impl<T: 'static> EventLoop<T> {
-    pub fn idiom(&self) -> Idiom {
-        // guaranteed to be on main thread
-        unsafe { self::get_idiom() }
-    }
-}
-
-pub struct EventLoopProxy<T> {
-    sender: Sender<T>,
-    source: CFRunLoopSourceRef,
-}
-
-unsafe impl<T: Send> Send for EventLoopProxy<T> {}
-
-impl<T> Clone for EventLoopProxy<T> {
-    fn clone(&self) -> EventLoopProxy<T> {
-        EventLoopProxy::new(self.sender.clone())
-    }
-}
-
-impl<T> Drop for EventLoopProxy<T> {
-    fn drop(&mut self) {
-        unsafe {
-            CFRunLoopSourceInvalidate(self.source);
-            CFRelease(self.source as _);
-        }
-    }
-}
-
-impl<T> EventLoopProxy<T> {
-    fn new(sender: Sender<T>) -> EventLoopProxy<T> {
-        unsafe {
-            // just wake up the eventloop
-            extern "C" fn event_loop_proxy_handler(_: *mut c_void) {}
-
-            // adding a Source to the main CFRunLoop lets us wake it up and
-            // process user events through the normal OS EventLoop mechanisms.
-            let rl = CFRunLoopGetMain();
-            // we want all the members of context to be zero/null, except one
-            let mut context: CFRunLoopSourceContext = mem::zeroed();
-            context.perform = Some(event_loop_proxy_handler);
-            let source =
-                CFRunLoopSourceCreate(ptr::null_mut(), CFIndex::max_value() - 1, &mut context);
-            CFRunLoopAddSource(rl, source, kCFRunLoopCommonModes);
-            CFRunLoopWakeUp(rl);
-
-            EventLoopProxy { sender, source }
-        }
-    }
-
-    pub fn send_event(&self, event: T) -> Result<(), EventLoopClosed> {
-        self.sender.send(event).map_err(|_| EventLoopClosed)?;
-        unsafe {
-            // let the main thread know there's a new event
-            CFRunLoopSourceSignal(self.source);
-            let rl = CFRunLoopGetMain();
-            CFRunLoopWakeUp(rl);
-        }
-        Ok(())
-    }
-}
-
-fn setup_control_flow_observers() {
-    unsafe {
-        // begin is queued with the highest priority to ensure it is processed before other observers
-        extern "C" fn control_flow_begin_handler(
-            _: CFRunLoopObserverRef,
-            activity: CFRunLoopActivity,
-            _: *mut c_void,
-        ) {
-            unsafe {
-                #[allow(non_upper_case_globals)]
-                match activity {
-                    kCFRunLoopAfterWaiting => app_state::handle_wakeup_transition(),
-                    kCFRunLoopEntry => unimplemented!(), // not expected to ever happen
-                    _ => unreachable!(),
-                }
-            }
-        }
-
-        // Core Animation registers its `CFRunLoopObserver` that performs drawing operations in
-        // `CA::Transaction::ensure_implicit` with a priority of `0x1e8480`. We set the main_end
-        // priority to be 0, in order to send EventsCleared before RedrawRequested. This value was
-        // chosen conservatively to guard against apple using different priorities for their redraw
-        // observers in different OS's or on different devices. If it so happens that it's too
-        // conservative, the main symptom would be non-redraw events coming in after `EventsCleared`.
-        //
-        // The value of `0x1e8480` was determined by inspecting stack traces and the associated
-        // registers for every `CFRunLoopAddObserver` call on an iPad Air 2 running iOS 11.4.
-        //
-        // Also tested to be `0x1e8480` on iPhone 8, iOS 13 beta 4.
-        extern "C" fn control_flow_main_end_handler(
-            _: CFRunLoopObserverRef,
-            activity: CFRunLoopActivity,
-            _: *mut c_void,
-        ) {
-            unsafe {
-                #[allow(non_upper_case_globals)]
-                match activity {
-                    kCFRunLoopBeforeWaiting => app_state::handle_main_events_cleared(),
-                    kCFRunLoopExit => unimplemented!(), // not expected to ever happen
-                    _ => unreachable!(),
-                }
-            }
-        }
-
-        // end is queued with the lowest priority to ensure it is processed after other observers
-        extern "C" fn control_flow_end_handler(
-            _: CFRunLoopObserverRef,
-            activity: CFRunLoopActivity,
-            _: *mut c_void,
-        ) {
-            unsafe {
-                #[allow(non_upper_case_globals)]
-                match activity {
-                    kCFRunLoopBeforeWaiting => app_state::handle_events_cleared(),
-                    kCFRunLoopExit => unimplemented!(), // not expected to ever happen
-                    _ => unreachable!(),
-                }
-            }
-        }
-
-        let main_loop = CFRunLoopGetMain();
-
-        let begin_observer = CFRunLoopObserverCreate(
-            ptr::null_mut(),
-            kCFRunLoopEntry | kCFRunLoopAfterWaiting,
-            1, // repeat = true
-            CFIndex::min_value(),
-            control_flow_begin_handler,
-            ptr::null_mut(),
-        );
-        CFRunLoopAddObserver(main_loop, begin_observer, kCFRunLoopDefaultMode);
-
-        let main_end_observer = CFRunLoopObserverCreate(
-            ptr::null_mut(),
-            kCFRunLoopExit | kCFRunLoopBeforeWaiting,
-            1, // repeat = true
-            0, // see comment on `control_flow_main_end_handler`
-            control_flow_main_end_handler,
-            ptr::null_mut(),
-        );
-        CFRunLoopAddObserver(main_loop, main_end_observer, kCFRunLoopDefaultMode);
-
-        let end_observer = CFRunLoopObserverCreate(
-            ptr::null_mut(),
-            kCFRunLoopExit | kCFRunLoopBeforeWaiting,
-            1, // repeat = true
-            CFIndex::max_value(),
-            control_flow_end_handler,
-            ptr::null_mut(),
-        );
-        CFRunLoopAddObserver(main_loop, end_observer, kCFRunLoopDefaultMode);
-    }
-}
-
-#[derive(Debug)]
-pub enum Never {}
-
-pub trait EventHandler: Debug {
-    fn handle_nonuser_event(&mut self, event: Event<Never>, control_flow: &mut ControlFlow);
-    fn handle_user_events(&mut self, control_flow: &mut ControlFlow);
-}
-
-struct EventLoopHandler<F, T: 'static> {
-    f: F,
-    event_loop: RootEventLoopWindowTarget<T>,
-}
-
-impl<F, T: 'static> Debug for EventLoopHandler<F, T> {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        f.debug_struct("EventLoopHandler")
-            .field("event_loop", &self.event_loop)
-            .finish()
-    }
-}
-
-impl<F, T> EventHandler for EventLoopHandler<F, T>
-where
-    F: 'static + FnMut(Event<T>, &RootEventLoopWindowTarget<T>, &mut ControlFlow),
-    T: 'static,
-{
-    fn handle_nonuser_event(&mut self, event: Event<Never>, control_flow: &mut ControlFlow) {
-        (self.f)(
-            event.map_nonuser_event().unwrap(),
-            &self.event_loop,
-            control_flow,
-        );
-    }
-
-    fn handle_user_events(&mut self, control_flow: &mut ControlFlow) {
-        for event in self.event_loop.p.receiver.try_iter() {
-            (self.f)(Event::UserEvent(event), &self.event_loop, control_flow);
-        }
-    }
-}
-
-// must be called on main thread
-pub unsafe fn get_idiom() -> Idiom {
-    let device: id = msg_send![class!(UIDevice), currentDevice];
-    let raw_idiom: UIUserInterfaceIdiom = msg_send![device, userInterfaceIdiom];
-    raw_idiom.into()
-}

src/platform_impl/ios/ffi.rs

@@ -1,372 +0,0 @@
-#![allow(non_camel_case_types, non_snake_case, non_upper_case_globals)]
-
-use std::{convert::TryInto, ffi::CString, ops::BitOr, os::raw::*};
-
-use objc::{runtime::Object, Encode, Encoding};
-
-use crate::platform::ios::{Idiom, ScreenEdge, ValidOrientations};
-
-pub type id = *mut Object;
-pub const nil: id = 0 as id;
-
-#[cfg(target_pointer_width = "32")]
-pub type CGFloat = f32;
-#[cfg(target_pointer_width = "64")]
-pub type CGFloat = f64;
-
-pub type NSInteger = isize;
-pub type NSUInteger = usize;
-
-#[repr(C)]
-#[derive(Clone, Debug)]
-pub struct NSOperatingSystemVersion {
-    pub major: NSInteger,
-    pub minor: NSInteger,
-    pub patch: NSInteger,
-}
-
-#[repr(C)]
-#[derive(Debug, Clone)]
-pub struct CGPoint {
-    pub x: CGFloat,
-    pub y: CGFloat,
-}
-
-#[repr(C)]
-#[derive(Debug, Clone)]
-pub struct CGSize {
-    pub width: CGFloat,
-    pub height: CGFloat,
-}
-
-#[repr(C)]
-#[derive(Debug, Clone)]
-pub struct CGRect {
-    pub origin: CGPoint,
-    pub size: CGSize,
-}
-
-unsafe impl Encode for CGRect {
-    fn encode() -> Encoding {
-        unsafe {
-            if cfg!(target_pointer_width = "32") {
-                Encoding::from_str("{CGRect={CGPoint=ff}{CGSize=ff}}")
-            } else if cfg!(target_pointer_width = "64") {
-                Encoding::from_str("{CGRect={CGPoint=dd}{CGSize=dd}}")
-            } else {
-                unimplemented!()
-            }
-        }
-    }
-}
-#[derive(Debug)]
-#[allow(dead_code)]
-#[repr(isize)]
-pub enum UITouchPhase {
-    Began = 0,
-    Moved,
-    Stationary,
-    Ended,
-    Cancelled,
-}
-
-#[derive(Debug, PartialEq)]
-#[allow(dead_code)]
-#[repr(isize)]
-pub enum UIForceTouchCapability {
-    Unknown = 0,
-    Unavailable,
-    Available,
-}
-
-#[derive(Debug, PartialEq)]
-#[allow(dead_code)]
-#[repr(isize)]
-pub enum UITouchType {
-    Direct = 0,
-    Indirect,
-    Pencil,
-}
-
-#[repr(C)]
-#[derive(Debug, Clone)]
-pub struct UIEdgeInsets {
-    pub top: CGFloat,
-    pub left: CGFloat,
-    pub bottom: CGFloat,
-    pub right: CGFloat,
-}
-
-#[repr(transparent)]
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub struct UIUserInterfaceIdiom(NSInteger);
-
-unsafe impl Encode for UIUserInterfaceIdiom {
-    fn encode() -> Encoding {
-        NSInteger::encode()
-    }
-}
-
-impl UIUserInterfaceIdiom {
-    pub const Unspecified: UIUserInterfaceIdiom = UIUserInterfaceIdiom(-1);
-    pub const Phone: UIUserInterfaceIdiom = UIUserInterfaceIdiom(0);
-    pub const Pad: UIUserInterfaceIdiom = UIUserInterfaceIdiom(1);
-    pub const TV: UIUserInterfaceIdiom = UIUserInterfaceIdiom(2);
-    pub const CarPlay: UIUserInterfaceIdiom = UIUserInterfaceIdiom(3);
-}
-
-impl From<Idiom> for UIUserInterfaceIdiom {
-    fn from(idiom: Idiom) -> UIUserInterfaceIdiom {
-        match idiom {
-            Idiom::Unspecified => UIUserInterfaceIdiom::Unspecified,
-            Idiom::Phone => UIUserInterfaceIdiom::Phone,
-            Idiom::Pad => UIUserInterfaceIdiom::Pad,
-            Idiom::TV => UIUserInterfaceIdiom::TV,
-            Idiom::CarPlay => UIUserInterfaceIdiom::CarPlay,
-        }
-    }
-}
-
-impl Into<Idiom> for UIUserInterfaceIdiom {
-    fn into(self) -> Idiom {
-        match self {
-            UIUserInterfaceIdiom::Unspecified => Idiom::Unspecified,
-            UIUserInterfaceIdiom::Phone => Idiom::Phone,
-            UIUserInterfaceIdiom::Pad => Idiom::Pad,
-            UIUserInterfaceIdiom::TV => Idiom::TV,
-            UIUserInterfaceIdiom::CarPlay => Idiom::CarPlay,
-            _ => unreachable!(),
-        }
-    }
-}
-
-#[repr(transparent)]
-#[derive(Clone, Copy, Debug)]
-pub struct UIInterfaceOrientationMask(NSUInteger);
-
-unsafe impl Encode for UIInterfaceOrientationMask {
-    fn encode() -> Encoding {
-        NSUInteger::encode()
-    }
-}
-
-impl UIInterfaceOrientationMask {
-    pub const Portrait: UIInterfaceOrientationMask = UIInterfaceOrientationMask(1 << 1);
-    pub const PortraitUpsideDown: UIInterfaceOrientationMask = UIInterfaceOrientationMask(1 << 2);
-    pub const LandscapeLeft: UIInterfaceOrientationMask = UIInterfaceOrientationMask(1 << 4);
-    pub const LandscapeRight: UIInterfaceOrientationMask = UIInterfaceOrientationMask(1 << 3);
-    pub const Landscape: UIInterfaceOrientationMask =
-        UIInterfaceOrientationMask(Self::LandscapeLeft.0 | Self::LandscapeRight.0);
-    pub const AllButUpsideDown: UIInterfaceOrientationMask =
-        UIInterfaceOrientationMask(Self::Landscape.0 | Self::Portrait.0);
-    pub const All: UIInterfaceOrientationMask =
-        UIInterfaceOrientationMask(Self::AllButUpsideDown.0 | Self::PortraitUpsideDown.0);
-}
-
-impl BitOr for UIInterfaceOrientationMask {
-    type Output = Self;
-
-    fn bitor(self, rhs: Self) -> Self {
-        UIInterfaceOrientationMask(self.0 | rhs.0)
-    }
-}
-
-impl UIInterfaceOrientationMask {
-    pub fn from_valid_orientations_idiom(
-        valid_orientations: ValidOrientations,
-        idiom: Idiom,
-    ) -> UIInterfaceOrientationMask {
-        match (valid_orientations, idiom) {
-            (ValidOrientations::LandscapeAndPortrait, Idiom::Phone) => {
-                UIInterfaceOrientationMask::AllButUpsideDown
-            }
-            (ValidOrientations::LandscapeAndPortrait, _) => UIInterfaceOrientationMask::All,
-            (ValidOrientations::Landscape, _) => UIInterfaceOrientationMask::Landscape,
-            (ValidOrientations::Portrait, Idiom::Phone) => UIInterfaceOrientationMask::Portrait,
-            (ValidOrientations::Portrait, _) => {
-                UIInterfaceOrientationMask::Portrait
-                    | UIInterfaceOrientationMask::PortraitUpsideDown
-            }
-        }
-    }
-}
-
-#[repr(transparent)]
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub struct UIRectEdge(NSUInteger);
-
-unsafe impl Encode for UIRectEdge {
-    fn encode() -> Encoding {
-        NSUInteger::encode()
-    }
-}
-
-impl From<ScreenEdge> for UIRectEdge {
-    fn from(screen_edge: ScreenEdge) -> UIRectEdge {
-        assert_eq!(
-            screen_edge.bits() & !ScreenEdge::ALL.bits(),
-            0,
-            "invalid `ScreenEdge`"
-        );
-        UIRectEdge(screen_edge.bits().into())
-    }
-}
-
-impl Into<ScreenEdge> for UIRectEdge {
-    fn into(self) -> ScreenEdge {
-        let bits: u8 = self.0.try_into().expect("invalid `UIRectEdge`");
-        ScreenEdge::from_bits(bits).expect("invalid `ScreenEdge`")
-    }
-}
-
-#[repr(transparent)]
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
-pub struct UIScreenOverscanCompensation(NSInteger);
-
-unsafe impl Encode for UIScreenOverscanCompensation {
-    fn encode() -> Encoding {
-        NSInteger::encode()
-    }
-}
-
-#[allow(dead_code)]
-impl UIScreenOverscanCompensation {
-    pub const Scale: UIScreenOverscanCompensation = UIScreenOverscanCompensation(0);
-    pub const InsetBounds: UIScreenOverscanCompensation = UIScreenOverscanCompensation(1);
-    pub const None: UIScreenOverscanCompensation = UIScreenOverscanCompensation(2);
-}
-
-#[link(name = "UIKit", kind = "framework")]
-#[link(name = "CoreFoundation", kind = "framework")]
-extern "C" {
-    pub static kCFRunLoopDefaultMode: CFRunLoopMode;
-    pub static kCFRunLoopCommonModes: CFRunLoopMode;
-
-    pub fn UIApplicationMain(
-        argc: c_int,
-        argv: *const c_char,
-        principalClassName: id,
-        delegateClassName: id,
-    ) -> c_int;
-
-    pub fn CFRunLoopGetMain() -> CFRunLoopRef;
-    pub fn CFRunLoopWakeUp(rl: CFRunLoopRef);
-
-    pub fn CFRunLoopObserverCreate(
-        allocator: CFAllocatorRef,
-        activities: CFOptionFlags,
-        repeats: Boolean,
-        order: CFIndex,
-        callout: CFRunLoopObserverCallBack,
-        context: *mut CFRunLoopObserverContext,
-    ) -> CFRunLoopObserverRef;
-    pub fn CFRunLoopAddObserver(
-        rl: CFRunLoopRef,
-        observer: CFRunLoopObserverRef,
-        mode: CFRunLoopMode,
-    );
-
-    pub fn CFRunLoopTimerCreate(
-        allocator: CFAllocatorRef,
-        fireDate: CFAbsoluteTime,
-        interval: CFTimeInterval,
-        flags: CFOptionFlags,
-        order: CFIndex,
-        callout: CFRunLoopTimerCallBack,
-        context: *mut CFRunLoopTimerContext,
-    ) -> CFRunLoopTimerRef;
-    pub fn CFRunLoopAddTimer(rl: CFRunLoopRef, timer: CFRunLoopTimerRef, mode: CFRunLoopMode);
-    pub fn CFRunLoopTimerSetNextFireDate(timer: CFRunLoopTimerRef, fireDate: CFAbsoluteTime);
-    pub fn CFRunLoopTimerInvalidate(time: CFRunLoopTimerRef);
-
-    pub fn CFRunLoopSourceCreate(
-        allocator: CFAllocatorRef,
-        order: CFIndex,
-        context: *mut CFRunLoopSourceContext,
-    ) -> CFRunLoopSourceRef;
-    pub fn CFRunLoopAddSource(rl: CFRunLoopRef, source: CFRunLoopSourceRef, mode: CFRunLoopMode);
-    pub fn CFRunLoopSourceInvalidate(source: CFRunLoopSourceRef);
-    pub fn CFRunLoopSourceSignal(source: CFRunLoopSourceRef);
-
-    pub fn CFAbsoluteTimeGetCurrent() -> CFAbsoluteTime;
-    pub fn CFRelease(cftype: *const c_void);
-}
-
-pub type Boolean = u8;
-pub enum CFAllocator {}
-pub type CFAllocatorRef = *mut CFAllocator;
-pub enum CFRunLoop {}
-pub type CFRunLoopRef = *mut CFRunLoop;
-pub type CFRunLoopMode = CFStringRef;
-pub enum CFRunLoopObserver {}
-pub type CFRunLoopObserverRef = *mut CFRunLoopObserver;
-pub enum CFRunLoopTimer {}
-pub type CFRunLoopTimerRef = *mut CFRunLoopTimer;
-pub enum CFRunLoopSource {}
-pub type CFRunLoopSourceRef = *mut CFRunLoopSource;
-pub enum CFString {}
-pub type CFStringRef = *const CFString;
-
-pub type CFHashCode = c_ulong;
-pub type CFIndex = c_long;
-pub type CFOptionFlags = c_ulong;
-pub type CFRunLoopActivity = CFOptionFlags;
-
-pub type CFAbsoluteTime = CFTimeInterval;
-pub type CFTimeInterval = f64;
-
-pub const kCFRunLoopEntry: CFRunLoopActivity = 0;
-pub const kCFRunLoopBeforeWaiting: CFRunLoopActivity = 1 << 5;
-pub const kCFRunLoopAfterWaiting: CFRunLoopActivity = 1 << 6;
-pub const kCFRunLoopExit: CFRunLoopActivity = 1 << 7;
-
-pub type CFRunLoopObserverCallBack =
-    extern "C" fn(observer: CFRunLoopObserverRef, activity: CFRunLoopActivity, info: *mut c_void);
-pub type CFRunLoopTimerCallBack = extern "C" fn(timer: CFRunLoopTimerRef, info: *mut c_void);
-
-pub enum CFRunLoopObserverContext {}
-pub enum CFRunLoopTimerContext {}
-
-#[repr(C)]
-pub struct CFRunLoopSourceContext {
-    pub version: CFIndex,
-    pub info: *mut c_void,
-    pub retain: Option<extern "C" fn(*const c_void) -> *const c_void>,
-    pub release: Option<extern "C" fn(*const c_void)>,
-    pub copyDescription: Option<extern "C" fn(*const c_void) -> CFStringRef>,
-    pub equal: Option<extern "C" fn(*const c_void, *const c_void) -> Boolean>,
-    pub hash: Option<extern "C" fn(*const c_void) -> CFHashCode>,
-    pub schedule: Option<extern "C" fn(*mut c_void, CFRunLoopRef, CFRunLoopMode)>,
-    pub cancel: Option<extern "C" fn(*mut c_void, CFRunLoopRef, CFRunLoopMode)>,
-    pub perform: Option<extern "C" fn(*mut c_void)>,
-}
-
-pub trait NSString: Sized {
-    unsafe fn alloc(_: Self) -> id {
-        msg_send![class!(NSString), alloc]
-    }
-
-    unsafe fn initWithUTF8String_(self, c_string: *const c_char) -> id;
-    unsafe fn stringByAppendingString_(self, other: id) -> id;
-    unsafe fn init_str(self, string: &str) -> Self;
-    unsafe fn UTF8String(self) -> *const c_char;
-}
-
-impl NSString for id {
-    unsafe fn initWithUTF8String_(self, c_string: *const c_char) -> id {
-        msg_send![self, initWithUTF8String: c_string as id]
-    }
-
-    unsafe fn stringByAppendingString_(self, other: id) -> id {
-        msg_send![self, stringByAppendingString: other]
-    }
-
-    unsafe fn init_str(self, string: &str) -> id {
-        let cstring = CString::new(string).unwrap();
-        self.initWithUTF8String_(cstring.as_ptr())
-    }
-
-    unsafe fn UTF8String(self) -> *const c_char {
-        msg_send![self, UTF8String]
-    }
-}

src/platform_impl/ios/mod.rs

@@ -1,111 +0,0 @@
-//! iOS support
-//!
-//! # Building app
-//! To build ios app you will need rustc built for this targets:
-//!
-//!  - armv7-apple-ios
-//!  - armv7s-apple-ios
-//!  - i386-apple-ios
-//!  - aarch64-apple-ios
-//!  - x86_64-apple-ios
-//!
-//! Then
-//!
-//! ```
-//! cargo build --target=...
-//! ```
-//! The simplest way to integrate your app into xcode environment is to build it
-//! as a static library. Wrap your main function and export it.
-//!
-//! ```rust, ignore
-//! #[no_mangle]
-//! pub extern fn start_winit_app() {
-//!     start_inner()
-//! }
-//!
-//! fn start_inner() {
-//!    ...
-//! }
-//! ```
-//!
-//! Compile project and then drag resulting .a into Xcode project. Add winit.h to xcode.
-//!
-//! ```ignore
-//! void start_winit_app();
-//! ```
-//!
-//! Use start_winit_app inside your xcode's main function.
-//!
-//!
-//! # App lifecycle and events
-//!
-//! iOS environment is very different from other platforms and you must be very
-//! careful with it's events. Familiarize yourself with
-//! [app lifecycle](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIApplicationDelegate_Protocol/).
-//!
-//!
-//! This is how those event are represented in winit:
-//!
-//!  - applicationDidBecomeActive is Resumed
-//!  - applicationWillResignActive is Suspended
-//!  - applicationWillTerminate is LoopDestroyed
-//!
-//! Keep in mind that after LoopDestroyed event is received every attempt to draw with
-//! opengl will result in segfault.
-//!
-//! Also note that app may not receive the LoopDestroyed event if suspended; it might be SIGKILL'ed.
-
-#![cfg(target_os = "ios")]
-
-// TODO: (mtak-) UIKit requires main thread for virtually all function/method calls. This could be
-// worked around in the future by using GCD (grand central dispatch) and/or caching of values like
-// window size/position.
-macro_rules! assert_main_thread {
-    ($($t:tt)*) => {
-        if !msg_send![class!(NSThread), isMainThread] {
-            panic!($($t)*);
-        }
-    };
-}
-
-mod app_state;
-mod event_loop;
-mod ffi;
-mod monitor;
-mod view;
-mod window;
-
-use std::fmt;
-
-pub use self::{
-    event_loop::{EventLoop, EventLoopProxy, EventLoopWindowTarget},
-    monitor::{MonitorHandle, VideoMode},
-    window::{PlatformSpecificWindowBuilderAttributes, Window, WindowId},
-};
-
-#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
-pub struct DeviceId {
-    uiscreen: ffi::id,
-}
-
-impl DeviceId {
-    pub unsafe fn dummy() -> Self {
-        DeviceId {
-            uiscreen: std::ptr::null_mut(),
-        }
-    }
-}
-
-unsafe impl Send for DeviceId {}
-unsafe impl Sync for DeviceId {}
-
-#[derive(Debug)]
-pub enum OsError {}
-
-impl fmt::Display for OsError {
-    fn fmt(&self, _: &mut fmt::Formatter<'_>) -> fmt::Result {
-        match self {
-            _ => unreachable!(),
-        }
-    }
-}

src/platform_impl/ios/monitor.rs

@@ -1,284 +0,0 @@
-use std::{
-    collections::{BTreeSet, VecDeque},
-    fmt,
-    ops::{Deref, DerefMut},
-};
-
-use crate::{
-    dpi::{PhysicalPosition, PhysicalSize},
-    monitor::{MonitorHandle as RootMonitorHandle, VideoMode as RootVideoMode},
-    platform_impl::platform::{
-        app_state,
-        ffi::{id, nil, CGFloat, CGRect, CGSize, NSInteger, NSUInteger},
-    },
-};
-
-#[derive(Debug, PartialEq, Eq, Hash)]
-pub struct VideoMode {
-    pub(crate) size: (u32, u32),
-    pub(crate) bit_depth: u16,
-    pub(crate) refresh_rate: u16,
-    pub(crate) screen_mode: id,
-    pub(crate) monitor: MonitorHandle,
-}
-
-impl Clone for VideoMode {
-    fn clone(&self) -> VideoMode {
-        VideoMode {
-            size: self.size,
-            bit_depth: self.bit_depth,
-            refresh_rate: self.refresh_rate,
-            screen_mode: unsafe { msg_send![self.screen_mode, retain] },
-            monitor: self.monitor.clone(),
-        }
-    }
-}
-
-impl Drop for VideoMode {
-    fn drop(&mut self) {
-        unsafe {
-            assert_main_thread!("`VideoMode` can only be dropped on the main thread on iOS");
-            let () = msg_send![self.screen_mode, release];
-        }
-    }
-}
-
-impl VideoMode {
-    unsafe fn retained_new(uiscreen: id, screen_mode: id) -> VideoMode {
-        assert_main_thread!("`VideoMode` can only be created on the main thread on iOS");
-        let os_capabilities = app_state::os_capabilities();
-        let refresh_rate: NSInteger = if os_capabilities.maximum_frames_per_second {
-            msg_send![uiscreen, maximumFramesPerSecond]
-        } else {
-            // https://developer.apple.com/library/archive/technotes/tn2460/_index.html
-            // https://en.wikipedia.org/wiki/IPad_Pro#Model_comparison
-            //
-            // All iOS devices support 60 fps, and on devices where `maximumFramesPerSecond` is not
-            // supported, they are all guaranteed to have 60hz refresh rates. This does not
-            // correctly handle external displays. ProMotion displays support 120fps, but they were
-            // introduced at the same time as the `maximumFramesPerSecond` API.
-            //
-            // FIXME: earlier OSs could calculate the refresh rate using
-            // `-[CADisplayLink duration]`.
-            os_capabilities.maximum_frames_per_second_err_msg("defaulting to 60 fps");
-            60
-        };
-        let size: CGSize = msg_send![screen_mode, size];
-        VideoMode {
-            size: (size.width as u32, size.height as u32),
-            bit_depth: 32,
-            refresh_rate: refresh_rate as u16,
-            screen_mode: msg_send![screen_mode, retain],
-            monitor: MonitorHandle::retained_new(uiscreen),
-        }
-    }
-
-    pub fn size(&self) -> PhysicalSize {
-        self.size.into()
-    }
-
-    pub fn bit_depth(&self) -> u16 {
-        self.bit_depth
-    }
-
-    pub fn refresh_rate(&self) -> u16 {
-        self.refresh_rate
-    }
-
-    pub fn monitor(&self) -> RootMonitorHandle {
-        RootMonitorHandle {
-            inner: self.monitor.clone(),
-        }
-    }
-}
-
-#[derive(PartialEq, Eq, Hash, PartialOrd, Ord)]
-pub struct Inner {
-    uiscreen: id,
-}
-
-impl Drop for Inner {
-    fn drop(&mut self) {
-        unsafe {
-            let () = msg_send![self.uiscreen, release];
-        }
-    }
-}
-
-#[derive(PartialEq, Eq, Hash, PartialOrd, Ord)]
-pub struct MonitorHandle {
-    inner: Inner,
-}
-
-impl Deref for MonitorHandle {
-    type Target = Inner;
-
-    fn deref(&self) -> &Inner {
-        unsafe {
-            assert_main_thread!(
-                "`MonitorHandle` methods can only be run on the main thread on iOS"
-            );
-        }
-        &self.inner
-    }
-}
-
-impl DerefMut for MonitorHandle {
-    fn deref_mut(&mut self) -> &mut Inner {
-        unsafe {
-            assert_main_thread!(
-                "`MonitorHandle` methods can only be run on the main thread on iOS"
-            );
-        }
-        &mut self.inner
-    }
-}
-
-unsafe impl Send for MonitorHandle {}
-unsafe impl Sync for MonitorHandle {}
-
-impl Clone for MonitorHandle {
-    fn clone(&self) -> MonitorHandle {
-        MonitorHandle::retained_new(self.uiscreen)
-    }
-}
-
-impl Drop for MonitorHandle {
-    fn drop(&mut self) {
-        unsafe {
-            assert_main_thread!("`MonitorHandle` can only be dropped on the main thread on iOS");
-        }
-    }
-}
-
-impl fmt::Debug for MonitorHandle {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        #[derive(Debug)]
-        struct MonitorHandle {
-            name: Option<String>,
-            size: PhysicalSize,
-            position: PhysicalPosition,
-            hidpi_factor: f64,
-        }
-
-        let monitor_id_proxy = MonitorHandle {
-            name: self.name(),
-            size: self.size(),
-            position: self.position(),
-            hidpi_factor: self.hidpi_factor(),
-        };
-
-        monitor_id_proxy.fmt(f)
-    }
-}
-
-impl MonitorHandle {
-    pub fn retained_new(uiscreen: id) -> MonitorHandle {
-        unsafe {
-            assert_main_thread!("`MonitorHandle` can only be cloned on the main thread on iOS");
-            let () = msg_send![uiscreen, retain];
-        }
-        MonitorHandle {
-            inner: Inner { uiscreen },
-        }
-    }
-}
-
-impl Inner {
-    pub fn name(&self) -> Option<String> {
-        unsafe {
-            let main = main_uiscreen();
-            if self.uiscreen == main.uiscreen {
-                Some("Primary".to_string())
-            } else if self.uiscreen == mirrored_uiscreen(&main).uiscreen {
-                Some("Mirrored".to_string())
-            } else {
-                uiscreens()
-                    .iter()
-                    .position(|rhs| rhs.uiscreen == self.uiscreen)
-                    .map(|idx| idx.to_string())
-            }
-        }
-    }
-
-    pub fn size(&self) -> PhysicalSize {
-        unsafe {
-            let bounds: CGRect = msg_send![self.ui_screen(), nativeBounds];
-            (bounds.size.width as f64, bounds.size.height as f64).into()
-        }
-    }
-
-    pub fn position(&self) -> PhysicalPosition {
-        unsafe {
-            let bounds: CGRect = msg_send![self.ui_screen(), nativeBounds];
-            (bounds.origin.x as f64, bounds.origin.y as f64).into()
-        }
-    }
-
-    pub fn hidpi_factor(&self) -> f64 {
-        unsafe {
-            let scale: CGFloat = msg_send![self.ui_screen(), nativeScale];
-            scale as f64
-        }
-    }
-
-    pub fn video_modes(&self) -> impl Iterator<Item = RootVideoMode> {
-        let mut modes = BTreeSet::new();
-        unsafe {
-            let available_modes: id = msg_send![self.uiscreen, availableModes];
-            let available_mode_count: NSUInteger = msg_send![available_modes, count];
-
-            for i in 0..available_mode_count {
-                let mode: id = msg_send![available_modes, objectAtIndex: i];
-                modes.insert(RootVideoMode {
-                    video_mode: VideoMode::retained_new(self.uiscreen, mode),
-                });
-            }
-        }
-
-        modes.into_iter()
-    }
-}
-
-// MonitorHandleExtIOS
-impl Inner {
-    pub fn ui_screen(&self) -> id {
-        self.uiscreen
-    }
-
-    pub fn preferred_video_mode(&self) -> RootVideoMode {
-        unsafe {
-            let mode: id = msg_send![self.uiscreen, preferredMode];
-            RootVideoMode {
-                video_mode: VideoMode::retained_new(self.uiscreen, mode),
-            }
-        }
-    }
-}
-
-// requires being run on main thread
-pub unsafe fn main_uiscreen() -> MonitorHandle {
-    let uiscreen: id = msg_send![class!(UIScreen), mainScreen];
-    MonitorHandle::retained_new(uiscreen)
-}
-
-// requires being run on main thread
-unsafe fn mirrored_uiscreen(monitor: &MonitorHandle) -> MonitorHandle {
-    let uiscreen: id = msg_send![monitor.uiscreen, mirroredScreen];
-    MonitorHandle::retained_new(uiscreen)
-}
-
-// requires being run on main thread
-pub unsafe fn uiscreens() -> VecDeque<MonitorHandle> {
-    let screens: id = msg_send![class!(UIScreen), screens];
-    let count: NSUInteger = msg_send![screens, count];
-    let mut result = VecDeque::with_capacity(count as _);
-    let screens_enum: id = msg_send![screens, objectEnumerator];
-    loop {
-        let screen: id = msg_send![screens_enum, nextObject];
-        if screen == nil {
-            break result;
-        }
-        result.push_back(MonitorHandle::retained_new(screen));
-    }
-}

src/platform_impl/ios/view.rs

@@ -1,589 +0,0 @@
-use std::collections::HashMap;
-
-use objc::{
-    declare::ClassDecl,
-    runtime::{Class, Object, Sel, BOOL, NO, YES},
-};
-
-use crate::{
-    event::{DeviceId as RootDeviceId, Event, Force, Touch, TouchPhase, WindowEvent},
-    platform::ios::MonitorHandleExtIOS,
-    platform_impl::platform::{
-        app_state::{self, OSCapabilities},
-        event_loop,
-        ffi::{
-            id, nil, CGFloat, CGPoint, CGRect, UIForceTouchCapability, UIInterfaceOrientationMask,
-            UIRectEdge, UITouchPhase, UITouchType,
-        },
-        window::PlatformSpecificWindowBuilderAttributes,
-        DeviceId,
-    },
-    window::{Fullscreen, WindowAttributes, WindowId as RootWindowId},
-};
-
-macro_rules! add_property {
-    (
-        $decl:ident,
-        $name:ident: $t:ty,
-        $setter_name:ident: |$object:ident| $after_set:expr,
-        $getter_name:ident,
-    ) => {
-        add_property!(
-            $decl,
-            $name: $t,
-            $setter_name: true, |_, _|{}; |$object| $after_set,
-            $getter_name,
-        )
-    };
-    (
-        $decl:ident,
-        $name:ident: $t:ty,
-        $setter_name:ident: $capability:expr, $err:expr; |$object:ident| $after_set:expr,
-        $getter_name:ident,
-    ) => {
-        {
-            const VAR_NAME: &'static str = concat!("_", stringify!($name));
-            $decl.add_ivar::<$t>(VAR_NAME);
-            let setter = if $capability {
-                #[allow(non_snake_case)]
-                extern "C" fn $setter_name($object: &mut Object, _: Sel, value: $t) {
-                    unsafe {
-                        $object.set_ivar::<$t>(VAR_NAME, value);
-                    }
-                    $after_set
-                }
-                $setter_name
-            } else {
-                #[allow(non_snake_case)]
-                extern "C" fn $setter_name($object: &mut Object, _: Sel, value: $t) {
-                    unsafe {
-                        $object.set_ivar::<$t>(VAR_NAME, value);
-                    }
-                    $err(&app_state::os_capabilities(), "ignoring")
-                }
-                $setter_name
-            };
-            #[allow(non_snake_case)]
-            extern "C" fn $getter_name($object: &Object, _: Sel) -> $t {
-                unsafe { *$object.get_ivar::<$t>(VAR_NAME) }
-            }
-            $decl.add_method(
-                sel!($setter_name:),
-                setter as extern "C" fn(&mut Object, Sel, $t),
-            );
-            $decl.add_method(
-                sel!($getter_name),
-                $getter_name as extern "C" fn(&Object, Sel) -> $t,
-            );
-        }
-    };
-}
-
-// requires main thread
-unsafe fn get_view_class(root_view_class: &'static Class) -> &'static Class {
-    static mut CLASSES: Option<HashMap<*const Class, &'static Class>> = None;
-    static mut ID: usize = 0;
-
-    if CLASSES.is_none() {
-        CLASSES = Some(HashMap::default());
-    }
-
-    let classes = CLASSES.as_mut().unwrap();
-
-    classes.entry(root_view_class).or_insert_with(move || {
-        let uiview_class = class!(UIView);
-        let is_uiview: BOOL = msg_send![root_view_class, isSubclassOfClass: uiview_class];
-        assert_eq!(
-            is_uiview, YES,
-            "`root_view_class` must inherit from `UIView`"
-        );
-
-        extern "C" fn draw_rect(object: &Object, _: Sel, rect: CGRect) {
-            unsafe {
-                let window: id = msg_send![object, window];
-                assert!(!window.is_null());
-                app_state::handle_nonuser_event(Event::WindowEvent {
-                    window_id: RootWindowId(window.into()),
-                    event: WindowEvent::RedrawRequested,
-                });
-                let superclass: &'static Class = msg_send![object, superclass];
-                let () = msg_send![super(object, superclass), drawRect: rect];
-            }
-        }
-
-        extern "C" fn layout_subviews(object: &Object, _: Sel) {
-            unsafe {
-                let superclass: &'static Class = msg_send![object, superclass];
-                let () = msg_send![super(object, superclass), layoutSubviews];
-
-                let window: id = msg_send![object, window];
-                assert!(!window.is_null());
-                let bounds: CGRect = msg_send![window, bounds];
-                let screen: id = msg_send![window, screen];
-                let screen_space: id = msg_send![screen, coordinateSpace];
-                let screen_frame: CGRect =
-                    msg_send![object, convertRect:bounds toCoordinateSpace:screen_space];
-                let size = crate::dpi::LogicalSize {
-                    width: screen_frame.size.width as _,
-                    height: screen_frame.size.height as _,
-                };
-                app_state::handle_nonuser_event(Event::WindowEvent {
-                    window_id: RootWindowId(window.into()),
-                    event: WindowEvent::Resized(size),
-                });
-            }
-        }
-
-        extern "C" fn set_content_scale_factor(
-            object: &mut Object,
-            _: Sel,
-            untrusted_hidpi_factor: CGFloat,
-        ) {
-            unsafe {
-                let superclass: &'static Class = msg_send![object, superclass];
-                let () = msg_send![
-                    super(object, superclass),
-                    setContentScaleFactor: untrusted_hidpi_factor
-                ];
-
-                let window: id = msg_send![object, window];
-                // `window` is null when `setContentScaleFactor` is invoked prior to `[UIWindow
-                // makeKeyAndVisible]` at window creation time (either manually or internally by
-                // UIKit when the `UIView` is first created), in which case we send no events here
-                if window.is_null() {
-                    return;
-                }
-                // `setContentScaleFactor` may be called with a value of 0, which means "reset the
-                // content scale factor to a device-specific default value", so we can't use the
-                // parameter here. We can query the actual factor using the getter
-                let hidpi_factor: CGFloat = msg_send![object, contentScaleFactor];
-                assert!(
-                    !hidpi_factor.is_nan()
-                        && hidpi_factor.is_finite()
-                        && hidpi_factor.is_sign_positive()
-                        && hidpi_factor > 0.0,
-                    "invalid hidpi_factor set on UIView",
-                );
-                let bounds: CGRect = msg_send![object, bounds];
-                let screen: id = msg_send![window, screen];
-                let screen_space: id = msg_send![screen, coordinateSpace];
-                let screen_frame: CGRect =
-                    msg_send![object, convertRect:bounds toCoordinateSpace:screen_space];
-                let size = crate::dpi::LogicalSize {
-                    width: screen_frame.size.width as _,
-                    height: screen_frame.size.height as _,
-                };
-                app_state::handle_nonuser_events(
-                    std::iter::once(Event::WindowEvent {
-                        window_id: RootWindowId(window.into()),
-                        event: WindowEvent::HiDpiFactorChanged(hidpi_factor as _),
-                    })
-                    .chain(std::iter::once(Event::WindowEvent {
-                        window_id: RootWindowId(window.into()),
-                        event: WindowEvent::Resized(size),
-                    })),
-                );
-            }
-        }
-
-        extern "C" fn handle_touches(object: &Object, _: Sel, touches: id, _: id) {
-            unsafe {
-                let window: id = msg_send![object, window];
-                assert!(!window.is_null());
-                let uiscreen: id = msg_send![window, screen];
-                let touches_enum: id = msg_send![touches, objectEnumerator];
-                let mut touch_events = Vec::new();
-                let os_supports_force = app_state::os_capabilities().force_touch;
-                loop {
-                    let touch: id = msg_send![touches_enum, nextObject];
-                    if touch == nil {
-                        break;
-                    }
-                    let location: CGPoint = msg_send![touch, locationInView: nil];
-                    let touch_type: UITouchType = msg_send![touch, type];
-                    let force = if os_supports_force {
-                        let trait_collection: id = msg_send![object, traitCollection];
-                        let touch_capability: UIForceTouchCapability =
-                            msg_send![trait_collection, forceTouchCapability];
-                        // Both the OS _and_ the device need to be checked for force touch support.
-                        if touch_capability == UIForceTouchCapability::Available {
-                            let force: CGFloat = msg_send![touch, force];
-                            let max_possible_force: CGFloat =
-                                msg_send![touch, maximumPossibleForce];
-                            let altitude_angle: Option<f64> = if touch_type == UITouchType::Pencil {
-                                let angle: CGFloat = msg_send![touch, altitudeAngle];
-                                Some(angle as _)
-                            } else {
-                                None
-                            };
-                            Some(Force::Calibrated {
-                                force: force as _,
-                                max_possible_force: max_possible_force as _,
-                                altitude_angle,
-                            })
-                        } else {
-                            None
-                        }
-                    } else {
-                        None
-                    };
-                    let touch_id = touch as u64;
-                    let phase: UITouchPhase = msg_send![touch, phase];
-                    let phase = match phase {
-                        UITouchPhase::Began => TouchPhase::Started,
-                        UITouchPhase::Moved => TouchPhase::Moved,
-                        // 2 is UITouchPhase::Stationary and is not expected here
-                        UITouchPhase::Ended => TouchPhase::Ended,
-                        UITouchPhase::Cancelled => TouchPhase::Cancelled,
-                        _ => panic!("unexpected touch phase: {:?}", phase as i32),
-                    };
-
-                    touch_events.push(Event::WindowEvent {
-                        window_id: RootWindowId(window.into()),
-                        event: WindowEvent::Touch(Touch {
-                            device_id: RootDeviceId(DeviceId { uiscreen }),
-                            id: touch_id,
-                            location: (location.x as f64, location.y as f64).into(),
-                            force,
-                            phase,
-                        }),
-                    });
-                }
-                app_state::handle_nonuser_events(touch_events);
-            }
-        }
-
-        let mut decl = ClassDecl::new(&format!("WinitUIView{}", ID), root_view_class)
-            .expect("Failed to declare class `WinitUIView`");
-        ID += 1;
-        decl.add_method(
-            sel!(drawRect:),
-            draw_rect as extern "C" fn(&Object, Sel, CGRect),
-        );
-        decl.add_method(
-            sel!(layoutSubviews),
-            layout_subviews as extern "C" fn(&Object, Sel),
-        );
-        decl.add_method(
-            sel!(setContentScaleFactor:),
-            set_content_scale_factor as extern "C" fn(&mut Object, Sel, CGFloat),
-        );
-
-        decl.add_method(
-            sel!(touchesBegan:withEvent:),
-            handle_touches as extern "C" fn(this: &Object, _: Sel, _: id, _: id),
-        );
-        decl.add_method(
-            sel!(touchesMoved:withEvent:),
-            handle_touches as extern "C" fn(this: &Object, _: Sel, _: id, _: id),
-        );
-        decl.add_method(
-            sel!(touchesEnded:withEvent:),
-            handle_touches as extern "C" fn(this: &Object, _: Sel, _: id, _: id),
-        );
-        decl.add_method(
-            sel!(touchesCancelled:withEvent:),
-            handle_touches as extern "C" fn(this: &Object, _: Sel, _: id, _: id),
-        );
-
-        decl.register()
-    })
-}
-
-// requires main thread
-unsafe fn get_view_controller_class() -> &'static Class {
-    static mut CLASS: Option<&'static Class> = None;
-    if CLASS.is_none() {
-        let os_capabilities = app_state::os_capabilities();
-
-        let uiviewcontroller_class = class!(UIViewController);
-
-        extern "C" fn should_autorotate(_: &Object, _: Sel) -> BOOL {
-            YES
-        }
-
-        let mut decl = ClassDecl::new("WinitUIViewController", uiviewcontroller_class)
-            .expect("Failed to declare class `WinitUIViewController`");
-        decl.add_method(
-            sel!(shouldAutorotate),
-            should_autorotate as extern "C" fn(&Object, Sel) -> BOOL,
-        );
-        add_property! {
-            decl,
-            prefers_status_bar_hidden: BOOL,
-            setPrefersStatusBarHidden: |object| {
-                unsafe {
-                    let () = msg_send![object, setNeedsStatusBarAppearanceUpdate];
-                }
-            },
-            prefersStatusBarHidden,
-        }
-        add_property! {
-            decl,
-            prefers_home_indicator_auto_hidden: BOOL,
-            setPrefersHomeIndicatorAutoHidden:
-                os_capabilities.home_indicator_hidden,
-                OSCapabilities::home_indicator_hidden_err_msg;
-                |object| {
-                    unsafe {
-                        let () = msg_send![object, setNeedsUpdateOfHomeIndicatorAutoHidden];
-                    }
-                },
-            prefersHomeIndicatorAutoHidden,
-        }
-        add_property! {
-            decl,
-            supported_orientations: UIInterfaceOrientationMask,
-            setSupportedInterfaceOrientations: |object| {
-                unsafe {
-                    let () = msg_send![class!(UIViewController), attemptRotationToDeviceOrientation];
-                }
-            },
-            supportedInterfaceOrientations,
-        }
-        add_property! {
-            decl,
-            preferred_screen_edges_deferring_system_gestures: UIRectEdge,
-            setPreferredScreenEdgesDeferringSystemGestures:
-                os_capabilities.defer_system_gestures,
-                OSCapabilities::defer_system_gestures_err_msg;
-                |object| {
-                    unsafe {
-                        let () = msg_send![object, setNeedsUpdateOfScreenEdgesDeferringSystemGestures];
-                    }
-                },
-            preferredScreenEdgesDeferringSystemGestures,
-        }
-        CLASS = Some(decl.register());
-    }
-    CLASS.unwrap()
-}
-
-// requires main thread
-unsafe fn get_window_class() -> &'static Class {
-    static mut CLASS: Option<&'static Class> = None;
-    if CLASS.is_none() {
-        let uiwindow_class = class!(UIWindow);
-
-        extern "C" fn become_key_window(object: &Object, _: Sel) {
-            unsafe {
-                app_state::handle_nonuser_event(Event::WindowEvent {
-                    window_id: RootWindowId(object.into()),
-                    event: WindowEvent::Focused(true),
-                });
-                let () = msg_send![super(object, class!(UIWindow)), becomeKeyWindow];
-            }
-        }
-
-        extern "C" fn resign_key_window(object: &Object, _: Sel) {
-            unsafe {
-                app_state::handle_nonuser_event(Event::WindowEvent {
-                    window_id: RootWindowId(object.into()),
-                    event: WindowEvent::Focused(false),
-                });
-                let () = msg_send![super(object, class!(UIWindow)), resignKeyWindow];
-            }
-        }
-
-        let mut decl = ClassDecl::new("WinitUIWindow", uiwindow_class)
-            .expect("Failed to declare class `WinitUIWindow`");
-        decl.add_method(
-            sel!(becomeKeyWindow),
-            become_key_window as extern "C" fn(&Object, Sel),
-        );
-        decl.add_method(
-            sel!(resignKeyWindow),
-            resign_key_window as extern "C" fn(&Object, Sel),
-        );
-
-        CLASS = Some(decl.register());
-    }
-    CLASS.unwrap()
-}
-
-// requires main thread
-pub unsafe fn create_view(
-    _window_attributes: &WindowAttributes,
-    platform_attributes: &PlatformSpecificWindowBuilderAttributes,
-    frame: CGRect,
-) -> id {
-    let class = get_view_class(platform_attributes.root_view_class);
-
-    let view: id = msg_send![class, alloc];
-    assert!(!view.is_null(), "Failed to create `UIView` instance");
-    let view: id = msg_send![view, initWithFrame: frame];
-    assert!(!view.is_null(), "Failed to initialize `UIView` instance");
-    let () = msg_send![view, setMultipleTouchEnabled: YES];
-    if let Some(hidpi_factor) = platform_attributes.hidpi_factor {
-        let () = msg_send![view, setContentScaleFactor: hidpi_factor as CGFloat];
-    }
-
-    view
-}
-
-// requires main thread
-pub unsafe fn create_view_controller(
-    _window_attributes: &WindowAttributes,
-    platform_attributes: &PlatformSpecificWindowBuilderAttributes,
-    view: id,
-) -> id {
-    let class = get_view_controller_class();
-
-    let view_controller: id = msg_send![class, alloc];
-    assert!(
-        !view_controller.is_null(),
-        "Failed to create `UIViewController` instance"
-    );
-    let view_controller: id = msg_send![view_controller, init];
-    assert!(
-        !view_controller.is_null(),
-        "Failed to initialize `UIViewController` instance"
-    );
-    let status_bar_hidden = if platform_attributes.prefers_status_bar_hidden {
-        YES
-    } else {
-        NO
-    };
-    let idiom = event_loop::get_idiom();
-    let supported_orientations = UIInterfaceOrientationMask::from_valid_orientations_idiom(
-        platform_attributes.valid_orientations,
-        idiom,
-    );
-    let prefers_home_indicator_hidden = if platform_attributes.prefers_home_indicator_hidden {
-        YES
-    } else {
-        NO
-    };
-    let edges: UIRectEdge = platform_attributes
-        .preferred_screen_edges_deferring_system_gestures
-        .into();
-    let () = msg_send![
-        view_controller,
-        setPrefersStatusBarHidden: status_bar_hidden
-    ];
-    let () = msg_send![
-        view_controller,
-        setSupportedInterfaceOrientations: supported_orientations
-    ];
-    let () = msg_send![
-        view_controller,
-        setPrefersHomeIndicatorAutoHidden: prefers_home_indicator_hidden
-    ];
-    let () = msg_send![
-        view_controller,
-        setPreferredScreenEdgesDeferringSystemGestures: edges
-    ];
-    let () = msg_send![view_controller, setView: view];
-    view_controller
-}
-
-// requires main thread
-pub unsafe fn create_window(
-    window_attributes: &WindowAttributes,
-    _platform_attributes: &PlatformSpecificWindowBuilderAttributes,
-    frame: CGRect,
-    view_controller: id,
-) -> id {
-    let class = get_window_class();
-
-    let window: id = msg_send![class, alloc];
-    assert!(!window.is_null(), "Failed to create `UIWindow` instance");
-    let window: id = msg_send![window, initWithFrame: frame];
-    assert!(
-        !window.is_null(),
-        "Failed to initialize `UIWindow` instance"
-    );
-    let () = msg_send![window, setRootViewController: view_controller];
-    match window_attributes.fullscreen {
-        Some(Fullscreen::Exclusive(ref video_mode)) => {
-            let uiscreen = video_mode.monitor().ui_screen() as id;
-            let () = msg_send![uiscreen, setCurrentMode: video_mode.video_mode.screen_mode];
-            msg_send![window, setScreen:video_mode.monitor().ui_screen()]
-        }
-        Some(Fullscreen::Borderless(ref monitor)) => {
-            msg_send![window, setScreen:monitor.ui_screen()]
-        }
-        None => (),
-    }
-
-    window
-}
-
-pub fn create_delegate_class() {
-    extern "C" fn did_finish_launching(_: &mut Object, _: Sel, _: id, _: id) -> BOOL {
-        unsafe {
-            app_state::did_finish_launching();
-        }
-        YES
-    }
-
-    extern "C" fn did_become_active(_: &Object, _: Sel, _: id) {
-        unsafe { app_state::handle_nonuser_event(Event::Resumed) }
-    }
-
-    extern "C" fn will_resign_active(_: &Object, _: Sel, _: id) {
-        unsafe { app_state::handle_nonuser_event(Event::Suspended) }
-    }
-
-    extern "C" fn will_enter_foreground(_: &Object, _: Sel, _: id) {}
-    extern "C" fn did_enter_background(_: &Object, _: Sel, _: id) {}
-
-    extern "C" fn will_terminate(_: &Object, _: Sel, _: id) {
-        unsafe {
-            let app: id = msg_send![class!(UIApplication), sharedApplication];
-            let windows: id = msg_send![app, windows];
-            let windows_enum: id = msg_send![windows, objectEnumerator];
-            let mut events = Vec::new();
-            loop {
-                let window: id = msg_send![windows_enum, nextObject];
-                if window == nil {
-                    break;
-                }
-                let is_winit_window: BOOL = msg_send![window, isKindOfClass: class!(WinitUIWindow)];
-                if is_winit_window == YES {
-                    events.push(Event::WindowEvent {
-                        window_id: RootWindowId(window.into()),
-                        event: WindowEvent::Destroyed,
-                    });
-                }
-            }
-            app_state::handle_nonuser_events(events);
-            app_state::terminated();
-        }
-    }
-
-    let ui_responder = class!(UIResponder);
-    let mut decl =
-        ClassDecl::new("AppDelegate", ui_responder).expect("Failed to declare class `AppDelegate`");
-
-    unsafe {
-        decl.add_method(
-            sel!(application:didFinishLaunchingWithOptions:),
-            did_finish_launching as extern "C" fn(&mut Object, Sel, id, id) -> BOOL,
-        );
-
-        decl.add_method(
-            sel!(applicationDidBecomeActive:),
-            did_become_active as extern "C" fn(&Object, Sel, id),
-        );
-        decl.add_method(
-            sel!(applicationWillResignActive:),
-            will_resign_active as extern "C" fn(&Object, Sel, id),
-        );
-        decl.add_method(
-            sel!(applicationWillEnterForeground:),
-            will_enter_foreground as extern "C" fn(&Object, Sel, id),
-        );
-        decl.add_method(
-            sel!(applicationDidEnterBackground:),
-            did_enter_background as extern "C" fn(&Object, Sel, id),
-        );
-
-        decl.add_method(
-            sel!(applicationWillTerminate:),
-            will_terminate as extern "C" fn(&Object, Sel, id),
-        );
-
-        decl.register();
-    }
-}