monitor: refactor MonitorHandle to store dyn object

This also alters `VideoMode` to be a regular object and not reference
the `MonitorHandle`, since it's a static data.

Given that `VideoMode` set may change during runtime keeping the
reference as a some sort of validity may not be idea and propagating
errors when changing video mode could be more reliable.

src/platform/ios.rs

@@ -108,6 +108,7 @@ use std::os::raw::c_void;
 use serde::{Deserialize, Serialize};
 
 use crate::monitor::{MonitorHandle, VideoMode};
+use crate::platform_impl::MonitorHandle as IosMonitorHandle;
 use crate::window::{Window, WindowAttributes};
 
 /// Additional methods on [`Window`] that are specific to iOS.
@@ -115,10 +116,11 @@ pub trait WindowExtIOS {
     /// Sets the [`contentScaleFactor`] of the underlying [`UIWindow`] to `scale_factor`.
     ///
     /// The default value is device dependent, and it's recommended GLES or Metal applications set
-    /// this to [`MonitorHandle::scale_factor()`].
+    /// this to [`MonitorHandleProvider::scale_factor()`].
     ///
     /// [`UIWindow`]: https://developer.apple.com/documentation/uikit/uiwindow?language=objc
     /// [`contentScaleFactor`]: https://developer.apple.com/documentation/uikit/uiview/1622657-contentscalefactor?language=objc
+    /// [`MonitorHandleProvider::scale_factor()`]: crate::monitor::MonitorHandleProvider::scale_factor()
     fn set_scale_factor(&self, scale_factor: f64);
 
     /// Sets the valid orientations for the [`Window`].
@@ -289,10 +291,11 @@ pub trait WindowAttributesExtIOS {
     /// Sets the [`contentScaleFactor`] of the underlying [`UIWindow`] to `scale_factor`.
     ///
     /// The default value is device dependent, and it's recommended GLES or Metal applications set
-    /// this to [`MonitorHandle::scale_factor()`].
+    /// this to [`MonitorHandleProvider::scale_factor()`].
     ///
     /// [`UIWindow`]: https://developer.apple.com/documentation/uikit/uiwindow?language=objc
     /// [`contentScaleFactor`]: https://developer.apple.com/documentation/uikit/uiview/1622657-contentscalefactor?language=objc
+    /// [`MonitorHandleProvider::scale_factor()`]: crate::monitor::MonitorHandleProvider::scale_factor()
     fn with_scale_factor(self, scale_factor: f64) -> Self;
 
     /// Sets the valid orientations for the [`Window`].
@@ -395,12 +398,14 @@ impl MonitorHandleExtIOS for MonitorHandle {
     fn ui_screen(&self) -> *mut c_void {
         // SAFETY: The marker is only used to get the pointer of the screen
         let mtm = unsafe { objc2::MainThreadMarker::new_unchecked() };
-        objc2::rc::Retained::as_ptr(self.inner.ui_screen(mtm)) as *mut c_void
+        let monitor = self.as_any().downcast_ref::<IosMonitorHandle>().unwrap();
+        objc2::rc::Retained::as_ptr(monitor.ui_screen(mtm)) as *mut c_void
     }
 
     #[inline]
     fn preferred_video_mode(&self) -> VideoMode {
-        self.inner.preferred_video_mode()
+        let monitor = self.as_any().downcast_ref::<IosMonitorHandle>().unwrap();
+        monitor.preferred_video_mode()
     }
 }
 

src/platform/macos.rs

@@ -73,6 +73,7 @@ use serde::{Deserialize, Serialize};
 use crate::application::ApplicationHandler;
 use crate::event_loop::{ActiveEventLoop, EventLoopBuilder};
 use crate::monitor::MonitorHandle;
+use crate::platform_impl::MonitorHandle as MacOsMonitorHandle;
 use crate::window::{Window, WindowAttributes, WindowId};
 
 /// Additional methods on [`Window`] that are specific to MacOS.
@@ -499,22 +500,16 @@ impl EventLoopBuilderExtMacOS for EventLoopBuilder {
 
 /// 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> {
+        let monitor = self.as_any().downcast_ref::<MacOsMonitorHandle>().unwrap();
         // SAFETY: We only use the marker to get a pointer
         let mtm = unsafe { objc2::MainThreadMarker::new_unchecked() };
-        self.inner.ns_screen(mtm).map(|s| objc2::rc::Retained::as_ptr(&s) as _)
+        monitor.ns_screen(mtm).map(|s| objc2::rc::Retained::as_ptr(&s) as _)
     }
 }
 

src/platform/wayland.rs

@@ -14,7 +14,6 @@
 //! * `wayland-csd-adwaita-crossfont`.
 //! * `wayland-csd-adwaita-notitle`.
 use crate::event_loop::{ActiveEventLoop, EventLoop, EventLoopBuilder};
-use crate::monitor::MonitorHandle;
 pub use crate::window::Theme;
 use crate::window::{Window as CoreWindow, WindowAttributes};
 
@@ -97,16 +96,3 @@ impl WindowAttributesExtWayland for WindowAttributes {
         self
     }
 }
-
-/// Additional methods on `MonitorHandle` that are specific to Wayland.
-pub trait MonitorHandleExtWayland {
-    /// Returns the inner identifier of the monitor.
-    fn native_id(&self) -> u32;
-}
-
-impl MonitorHandleExtWayland for MonitorHandle {
-    #[inline]
-    fn native_id(&self) -> u32 {
-        self.inner.native_identifier()
-    }
-}

src/platform/web.rs

@@ -58,8 +58,7 @@ use crate::application::ApplicationHandler;
 use crate::cursor::CustomCursorSource;
 use crate::error::NotSupportedError;
 use crate::event_loop::{ActiveEventLoop, EventLoop};
-use crate::monitor::MonitorHandle;
-use crate::platform_impl::PlatformCustomCursorSource;
+use crate::monitor::MonitorHandleProvider;
 #[cfg(web_platform)]
 use crate::platform_impl::{
     CustomCursorFuture as PlatformCustomCursorFuture,
@@ -67,6 +66,7 @@ use crate::platform_impl::{
     MonitorPermissionFuture as PlatformMonitorPermissionFuture,
     OrientationLockFuture as PlatformOrientationLockFuture,
 };
+use crate::platform_impl::{MonitorHandle as WebMonitorHandle, PlatformCustomCursorSource};
 use crate::window::{CustomCursor, Window, WindowAttributes};
 
 #[cfg(not(web_platform))]
@@ -253,12 +253,18 @@ pub trait EventLoopExtWeb {
     ///
     /// [`MonitorHandle`]s don't automatically make use of this after permission is granted. New
     /// [`MonitorHandle`]s have to be created instead.
+    ///
+    /// [`MonitorHandle`]: crate::monitor::MonitorHandle
     fn request_detailed_monitor_permission(&self) -> MonitorPermissionFuture;
 
     /// Returns whether the user has given permission to access detailed monitor information.
     ///
     /// [`MonitorHandle`]s don't automatically make use of detailed monitor information after
     /// permission is granted. New [`MonitorHandle`]s have to be created instead.
+    ///
+    /// [`MonitorHandle`]: crate::monitor::MonitorHandle
+    ///
+    /// [`MonitorHandle`]: crate::monitor::MonitorHandle
     fn has_detailed_monitor_permission(&self) -> HasMonitorPermissionFuture;
 }
 
@@ -348,12 +354,16 @@ pub trait ActiveEventLoopExtWeb {
     ///
     /// [`MonitorHandle`]s don't automatically make use of this after permission is granted. New
     /// [`MonitorHandle`]s have to be created instead.
+    ///
+    /// [`MonitorHandle`]: crate::monitor::MonitorHandle
     fn request_detailed_monitor_permission(&self) -> MonitorPermissionFuture;
 
     /// Returns whether the user has given permission to access detailed monitor information.
     ///
     /// [`MonitorHandle`]s don't automatically make use of detailed monitor information after
     /// permission is granted. New [`MonitorHandle`]s have to be created instead.
+    ///
+    /// [`MonitorHandle`]: crate::monitor::MonitorHandle
     fn has_detailed_monitor_permission(&self) -> bool;
 }
 
@@ -650,6 +660,8 @@ impl Future for HasMonitorPermissionFuture {
 }
 
 /// Additional methods on [`MonitorHandle`] that are specific to the Web.
+///
+/// [`MonitorHandle`]: crate::monitor::MonitorHandle
 pub trait MonitorHandleExtWeb {
     /// Returns whether the screen is internal to the device or external.
     ///
@@ -677,28 +689,35 @@ pub trait MonitorHandleExtWeb {
     /// specific monitor.
     ///
     /// See [`ActiveEventLoopExtWeb::request_detailed_monitor_permission()`].
+    ///
+    /// [`MonitorHandle`]: crate::monitor::MonitorHandle
     fn is_detailed(&self) -> bool;
 }
 
-impl MonitorHandleExtWeb for MonitorHandle {
+impl MonitorHandleExtWeb for dyn MonitorHandleProvider + '_ {
     fn is_internal(&self) -> Option<bool> {
-        self.inner.is_internal()
+        self.as_any().downcast_ref::<WebMonitorHandle>().unwrap().is_internal()
     }
 
     fn orientation(&self) -> OrientationData {
-        self.inner.orientation()
+        self.as_any().downcast_ref::<WebMonitorHandle>().unwrap().orientation()
     }
 
     fn request_lock(&self, orientation_lock: OrientationLock) -> OrientationLockFuture {
-        OrientationLockFuture(self.inner.request_lock(orientation_lock))
+        let future = self
+            .as_any()
+            .downcast_ref::<WebMonitorHandle>()
+            .unwrap()
+            .request_lock(orientation_lock);
+        OrientationLockFuture(future)
     }
 
     fn unlock(&self) -> Result<(), OrientationLockError> {
-        self.inner.unlock()
+        self.as_any().downcast_ref::<WebMonitorHandle>().unwrap().unlock()
     }
 
     fn is_detailed(&self) -> bool {
-        self.inner.is_detailed()
+        self.as_any().downcast_ref::<WebMonitorHandle>().unwrap().is_detailed()
     }
 }
 

src/platform/windows.rs

@@ -15,7 +15,6 @@ use windows_sys::Win32::Foundation::HANDLE;
 use crate::dpi::PhysicalSize;
 use crate::event::DeviceId;
 use crate::event_loop::EventLoopBuilder;
-use crate::monitor::MonitorHandle;
 use crate::window::{BadIcon, Icon, Window, WindowAttributes};
 
 /// Window Handle type used by Win32 API
@@ -618,27 +617,6 @@ impl WindowAttributesExtWindows for WindowAttributes {
     }
 }
 
-/// 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) -> HMONITOR;
-}
-
-impl MonitorHandleExtWindows for MonitorHandle {
-    #[inline]
-    fn native_id(&self) -> String {
-        self.inner.native_identifier()
-    }
-
-    #[inline]
-    fn hmonitor(&self) -> HMONITOR {
-        self.inner.hmonitor()
-    }
-}
-
 /// Additional methods on `DeviceId` that are specific to Windows.
 pub trait DeviceIdExtWindows {
     /// Returns an identifier that persistently refers to this specific device.

src/platform/x11.rs

@@ -4,7 +4,6 @@ use serde::{Deserialize, Serialize};
 
 use crate::dpi::Size;
 use crate::event_loop::{ActiveEventLoop, EventLoop, EventLoopBuilder};
-use crate::monitor::MonitorHandle;
 use crate::window::{Window as CoreWindow, WindowAttributes};
 
 /// X window type. Maps directly to
@@ -240,16 +239,3 @@ impl WindowAttributesExtX11 for WindowAttributes {
         self
     }
 }
-
-/// Additional methods on `MonitorHandle` that are specific to X11.
-pub trait MonitorHandleExtX11 {
-    /// Returns the inner identifier of the monitor.
-    fn native_id(&self) -> u32;
-}
-
-impl MonitorHandleExtX11 for MonitorHandle {
-    #[inline]
-    fn native_id(&self) -> u32 {
-        self.inner.native_identifier()
-    }
-}