Merge pull request #3084 from iced-rs/synchronous-tasks
Synchronous `Task` Execution and `RedrawRequested` Consistency
This commit is contained in:
commit
fe009142cf
4 changed files with 184 additions and 52 deletions
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@ -192,6 +192,7 @@ where
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let mut outdated = false;
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let mut redraw_request = window::RedrawRequest::Wait;
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let mut input_method = InputMethod::Disabled;
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let mut has_layout_changed = false;
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let viewport = Rectangle::with_size(self.bounds);
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let mut maybe_overlay = self
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@ -259,6 +260,7 @@ where
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shell.revalidate_layout(|| {
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layout = overlay.layout(renderer, bounds);
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has_layout_changed = true;
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});
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}
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@ -334,6 +336,8 @@ where
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input_method.merge(shell.input_method());
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shell.revalidate_layout(|| {
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has_layout_changed = true;
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self.base = self.root.as_widget_mut().layout(
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&mut self.state,
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renderer,
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@ -395,6 +399,7 @@ where
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mouse_interaction,
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redraw_request,
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input_method,
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has_layout_changed,
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}
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},
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event_statuses,
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@ -624,5 +629,19 @@ pub enum State {
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redraw_request: window::RedrawRequest,
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/// The current [`InputMethod`] strategy of the user interface.
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input_method: InputMethod,
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/// Whether the layout of the [`UserInterface`] has changed.
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has_layout_changed: bool,
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},
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}
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impl State {
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/// Returns whether the layout of the [`UserInterface`] has changed.
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pub fn has_layout_changed(&self) -> bool {
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match self {
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State::Outdated => true,
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State::Updated {
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has_layout_changed, ..
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} => *has_layout_changed,
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}
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}
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}
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@ -555,7 +555,6 @@ mod parser {
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fn mouse_click(input: &str) -> IResult<&str, Mouse> {
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let (input, _) = tag("click ")(input)?;
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let (input, (button, target)) = mouse_button_at(input)?;
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Ok((input, Mouse::Click { button, target }))
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@ -563,7 +562,6 @@ mod parser {
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fn mouse_press(input: &str) -> IResult<&str, Mouse> {
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let (input, _) = tag("press ")(input)?;
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let (input, (button, target)) = mouse_button_at(input)?;
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Ok((input, Mouse::Press { button, target }))
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@ -571,7 +569,6 @@ mod parser {
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fn mouse_release(input: &str) -> IResult<&str, Mouse> {
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let (input, _) = tag("release ")(input)?;
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let (input, (button, target)) = mouse_button_at(input)?;
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Ok((input, Mouse::Release { button, target }))
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@ -28,6 +28,7 @@ use crate::core::overlay;
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use crate::core::renderer;
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use crate::core::text;
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use crate::core::widget::{self, Widget};
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use crate::core::window;
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use crate::core::{
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Clipboard, Element, Event, Length, Padding, Pixels, Point, Rectangle,
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Shell, Size, Vector,
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@ -201,7 +202,9 @@ where
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shell: &mut Shell<'_, Message>,
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viewport: &Rectangle,
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) {
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if let Event::Mouse(_) = event {
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if let Event::Mouse(_)
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| Event::Window(window::Event::RedrawRequested(_)) = event
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{
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let state = tree.state.downcast_mut::<State>();
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let previous_state = *state;
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let was_idle = *state == State::Idle;
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209
winit/src/lib.rs
209
winit/src/lib.rs
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@ -554,7 +554,7 @@ async fn run_instance<P>(
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log::info!("System theme: {system_theme:?}");
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loop {
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'next_event: loop {
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// Empty the queue if possible
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let event = if let Ok(event) = event_receiver.try_next() {
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event
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@ -770,11 +770,12 @@ async fn run_instance<P>(
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event: event::WindowEvent::RedrawRequested,
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..
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} => {
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let Some(compositor) = &mut compositor else {
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let Some(mut current_compositor) = compositor.as_mut()
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else {
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continue;
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};
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let Some((id, window)) =
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let Some((id, mut window)) =
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window_manager.get_mut_alias(id)
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else {
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continue;
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@ -803,7 +804,7 @@ async fn run_instance<P>(
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);
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layout_span.finish();
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compositor.configure_surface(
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current_compositor.configure_surface(
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&mut window.surface,
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physical_size.width,
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physical_size.height,
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@ -819,20 +820,92 @@ async fn run_instance<P>(
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let cursor = window.state.cursor();
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let ui = user_interfaces
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let mut interface = user_interfaces
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.get_mut(&id)
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.expect("Get user interface");
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let draw_span = debug::draw(id);
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let (ui_state, _) = ui.update(
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slice::from_ref(&redraw_event),
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cursor,
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&mut window.renderer,
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&mut clipboard,
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&mut messages,
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);
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let mut change_count = 0;
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ui.draw(
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let state = loop {
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let (state, _) = interface.update(
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slice::from_ref(&redraw_event),
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cursor,
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&mut window.renderer,
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&mut clipboard,
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&mut messages,
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);
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change_count += 1;
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if messages.is_empty()
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&& !state.has_layout_changed()
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{
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break state;
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}
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if change_count >= 10 {
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log::warn!(
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"More than 10 consecutive RedrawRequested events \
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produced layout invalidation"
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);
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break state;
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}
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if !messages.is_empty() {
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let caches: FxHashMap<_, _> =
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ManuallyDrop::into_inner(user_interfaces)
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.into_iter()
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.map(|(id, interface)| {
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(id, interface.into_cache())
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})
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.collect();
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let actions = update(
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&mut program,
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&mut runtime,
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&mut messages,
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);
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user_interfaces =
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ManuallyDrop::new(build_user_interfaces(
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&program,
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&mut window_manager,
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caches,
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));
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for action in actions {
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run_action(
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action,
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&program,
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&mut runtime,
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&mut compositor,
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&mut events,
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&mut messages,
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&mut clipboard,
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&mut control_sender,
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&mut user_interfaces,
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&mut window_manager,
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&mut ui_caches,
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&mut is_window_opening,
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&mut system_theme,
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);
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}
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let Some(next_compositor) = compositor.as_mut()
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else {
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continue 'next_event;
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};
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current_compositor = next_compositor;
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window = window_manager.get_mut(id).unwrap();
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interface =
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user_interfaces.get_mut(&id).unwrap();
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}
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};
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interface.draw(
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&mut window.renderer,
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window.state.theme(),
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&renderer::Style {
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@ -842,27 +915,28 @@ async fn run_instance<P>(
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);
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draw_span.finish();
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runtime.broadcast(subscription::Event::Interaction {
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window: id,
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event: redraw_event,
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status: core::event::Status::Ignored,
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});
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if let user_interface::State::Updated {
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redraw_request,
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input_method,
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mouse_interaction,
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} = ui_state
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..
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} = state
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{
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window.request_redraw(redraw_request);
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window.request_input_method(input_method);
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window.update_mouse(mouse_interaction);
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}
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runtime.broadcast(subscription::Event::Interaction {
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window: id,
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event: redraw_event,
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status: core::event::Status::Ignored,
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});
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window.draw_preedit();
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let present_span = debug::present(id);
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match compositor.present(
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match current_compositor.present(
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&mut window.renderer,
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&mut window.surface,
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window.state.viewport(),
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@ -1071,31 +1145,17 @@ async fn run_instance<P>(
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}
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if !messages.is_empty() || uis_stale {
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let cached_interfaces: FxHashMap<
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window::Id,
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user_interface::Cache,
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> = ManuallyDrop::into_inner(user_interfaces)
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.drain()
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.map(|(id, ui)| (id, ui.into_cache()))
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.collect();
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let cached_interfaces: FxHashMap<_, _> =
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ManuallyDrop::into_inner(user_interfaces)
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.into_iter()
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.map(|(id, ui)| (id, ui.into_cache()))
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.collect();
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update(&mut program, &mut runtime, &mut messages);
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for (id, window) in window_manager.iter_mut() {
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window.state.synchronize(
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&program,
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id,
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&window.raw,
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);
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window.raw.request_redraw();
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}
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debug::theme_changed(|| {
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window_manager.first().and_then(|window| {
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theme::Base::palette(window.state.theme())
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})
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});
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let actions = update(
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&mut program,
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&mut runtime,
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&mut messages,
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);
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user_interfaces =
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ManuallyDrop::new(build_user_interfaces(
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@ -1103,6 +1163,24 @@ async fn run_instance<P>(
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&mut window_manager,
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cached_interfaces,
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));
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for action in actions {
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run_action(
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action,
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&program,
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&mut runtime,
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&mut compositor,
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&mut events,
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&mut messages,
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&mut clipboard,
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&mut control_sender,
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&mut user_interfaces,
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&mut window_manager,
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&mut ui_caches,
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&mut is_window_opening,
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&mut system_theme,
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);
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}
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}
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if let Some(redraw_at) = window_manager.redraw_at() {
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@ -1152,14 +1230,36 @@ fn update<P: Program, E: Executor>(
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program: &mut program::Instance<P>,
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runtime: &mut Runtime<E, Proxy<P::Message>, Action<P::Message>>,
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messages: &mut Vec<P::Message>,
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) where
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) -> Vec<Action<P::Message>>
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where
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P::Theme: theme::Base,
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{
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use futures::futures;
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let mut actions = Vec::new();
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for message in messages.drain(..) {
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let task = runtime.enter(|| program.update(message));
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if let Some(stream) = runtime::task::into_stream(task) {
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runtime.run(stream);
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if let Some(mut stream) = runtime::task::into_stream(task) {
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let waker = futures::task::noop_waker_ref();
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let mut context = futures::task::Context::from_waker(waker);
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// Run immediately available actions synchronously (e.g. widget operations)
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loop {
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match runtime.enter(|| stream.poll_next_unpin(&mut context)) {
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futures::task::Poll::Ready(Some(action)) => {
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actions.push(action);
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}
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futures::task::Poll::Ready(None) => {
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break;
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}
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futures::task::Poll::Pending => {
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runtime.run(stream);
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break;
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}
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}
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}
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}
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}
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@ -1167,6 +1267,8 @@ fn update<P: Program, E: Executor>(
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let recipes = subscription::into_recipes(subscription.map(Action::Output));
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runtime.track(recipes);
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actions
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}
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fn run_action<'a, P, C>(
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@ -1606,6 +1708,17 @@ where
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C: Compositor<Renderer = P::Renderer>,
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P::Theme: theme::Base,
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{
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for (id, window) in window_manager.iter_mut() {
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window.state.synchronize(program, id, &window.raw);
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window.raw.request_redraw();
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}
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debug::theme_changed(|| {
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window_manager
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.first()
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.and_then(|window| theme::Base::palette(window.state.theme()))
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});
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cached_user_interfaces
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.drain()
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.filter_map(|(id, cache)| {
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|
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