macOS/iOS: Various refactorings in application state (#3720)

I'm preparing to get rid of our application delegate in favour of registering
notification observers, to do so I'm renaming `app_delegate.rs` to
`app_state.rs`, and moving the functionality out of the Objective-C method
into a normal method.

Additionally, `AppState` previously implemented `Default`, but really, this
was a hack done because someone (probably myself) was too lazy to write out
the full initialization in `AppDelegate::new`.
This commit is contained in:
Mads Marquart
2024-06-06 14:39:31 +02:00
committed by Kirill Chibisov
parent 3a0928af45
commit 21e266f3b7
10 changed files with 139 additions and 128 deletions

View File

@@ -1,11 +1,9 @@
use objc2::{declare_class, mutability, ClassType, DeclaredClass};
use objc2_foundation::{MainThreadMarker, NSObject, NSObjectProtocol};
use objc2_ui_kit::{UIApplication, UIWindow};
use objc2_foundation::{MainThreadMarker, NSObject};
use objc2_ui_kit::UIApplication;
use super::app_state::{self, EventWrapper};
use super::window::WinitUIWindow;
use crate::event::{Event, WindowEvent};
use crate::window::WindowId as RootWindowId;
use super::app_state::{self, send_occluded_event_for_all_windows, EventWrapper};
use crate::event::Event;
declare_class!(
pub struct AppDelegate;
@@ -40,35 +38,17 @@ declare_class!(
#[method(applicationWillEnterForeground:)]
fn will_enter_foreground(&self, application: &UIApplication) {
self.send_occluded_event_for_all_windows(application, false);
send_occluded_event_for_all_windows(application, false);
}
#[method(applicationDidEnterBackground:)]
fn did_enter_background(&self, application: &UIApplication) {
self.send_occluded_event_for_all_windows(application, true);
send_occluded_event_for_all_windows(application, true);
}
#[method(applicationWillTerminate:)]
fn will_terminate(&self, application: &UIApplication) {
let mut events = Vec::new();
#[allow(deprecated)]
for window in application.windows().iter() {
if window.is_kind_of::<WinitUIWindow>() {
// SAFETY: We just checked that the window is a `winit` window
let window = unsafe {
let ptr: *const UIWindow = window;
let ptr: *const WinitUIWindow = ptr.cast();
&*ptr
};
events.push(EventWrapper::StaticEvent(Event::WindowEvent {
window_id: RootWindowId(window.id()),
event: WindowEvent::Destroyed,
}));
}
}
let mtm = MainThreadMarker::new().unwrap();
app_state::handle_nonuser_events(mtm, events);
app_state::terminated(mtm);
app_state::terminated(application);
}
#[method(applicationDidReceiveMemoryWarning:)]
@@ -78,26 +58,3 @@ declare_class!(
}
}
);
impl AppDelegate {
fn send_occluded_event_for_all_windows(&self, application: &UIApplication, occluded: bool) {
let mut events = Vec::new();
#[allow(deprecated)]
for window in application.windows().iter() {
if window.is_kind_of::<WinitUIWindow>() {
// SAFETY: We just checked that the window is a `winit` window
let window = unsafe {
let ptr: *const UIWindow = window;
let ptr: *const WinitUIWindow = ptr.cast();
&*ptr
};
events.push(EventWrapper::StaticEvent(Event::WindowEvent {
window_id: RootWindowId(window.id()),
event: WindowEvent::Occluded(occluded),
}));
}
}
let mtm = MainThreadMarker::new().unwrap();
app_state::handle_nonuser_events(mtm, events);
}
}

View File

@@ -20,7 +20,7 @@ use objc2_foundation::{
CGRect, CGSize, MainThreadMarker, NSInteger, NSObjectProtocol, NSOperatingSystemVersion,
NSProcessInfo,
};
use objc2_ui_kit::{UICoordinateSpace, UIView};
use objc2_ui_kit::{UIApplication, UICoordinateSpace, UIView, UIWindow};
use super::window::WinitUIWindow;
use crate::dpi::PhysicalSize;
@@ -662,6 +662,28 @@ fn handle_user_events(mtm: MainThreadMarker) {
}
}
pub(crate) fn send_occluded_event_for_all_windows(application: &UIApplication, occluded: bool) {
let mtm = MainThreadMarker::from(application);
let mut events = Vec::new();
#[allow(deprecated)]
for window in application.windows().iter() {
if window.is_kind_of::<WinitUIWindow>() {
// SAFETY: We just checked that the window is a `winit` window
let window = unsafe {
let ptr: *const UIWindow = window;
let ptr: *const WinitUIWindow = ptr.cast();
&*ptr
};
events.push(EventWrapper::StaticEvent(Event::WindowEvent {
window_id: RootWindowId(window.id()),
event: WindowEvent::Occluded(occluded),
}));
}
}
handle_nonuser_events(mtm, events);
}
pub fn handle_main_events_cleared(mtm: MainThreadMarker) {
let mut this = AppState::get_mut(mtm);
if !this.has_launched() || this.has_terminated() {
@@ -696,7 +718,27 @@ pub fn handle_events_cleared(mtm: MainThreadMarker) {
AppState::get_mut(mtm).events_cleared_transition();
}
pub fn terminated(mtm: MainThreadMarker) {
pub(crate) fn terminated(application: &UIApplication) {
let mtm = MainThreadMarker::from(application);
let mut events = Vec::new();
#[allow(deprecated)]
for window in application.windows().iter() {
if window.is_kind_of::<WinitUIWindow>() {
// SAFETY: We just checked that the window is a `winit` window
let window = unsafe {
let ptr: *const UIWindow = window;
let ptr: *const WinitUIWindow = ptr.cast();
&*ptr
};
events.push(EventWrapper::StaticEvent(Event::WindowEvent {
window_id: RootWindowId(window.id()),
event: WindowEvent::Destroyed,
}));
}
}
handle_nonuser_events(mtm, events);
let mut this = AppState::get_mut(mtm);
let mut handler = this.terminated_transition();
drop(this);