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-rw-r--r--winit/src/application.rs470
1 files changed, 208 insertions, 262 deletions
diff --git a/winit/src/application.rs b/winit/src/application.rs
index d93ea42e..a08c2010 100644
--- a/winit/src/application.rs
+++ b/winit/src/application.rs
@@ -19,7 +19,7 @@ use crate::graphics::compositor::{self, Compositor};
use crate::runtime::clipboard;
use crate::runtime::program::Program;
use crate::runtime::user_interface::{self, UserInterface};
-use crate::runtime::{Command, Debug};
+use crate::runtime::{Action, Debug, Task};
use crate::{Clipboard, Error, Proxy, Settings};
use futures::channel::mpsc;
@@ -36,7 +36,7 @@ use std::sync::Arc;
/// its own window.
///
/// An [`Application`] can execute asynchronous actions by returning a
-/// [`Command`] in some of its methods.
+/// [`Task`] in some of its methods.
///
/// When using an [`Application`] with the `debug` feature enabled, a debug view
/// can be toggled by pressing `F12`.
@@ -52,10 +52,10 @@ where
///
/// Here is where you should return the initial state of your app.
///
- /// Additionally, you can return a [`Command`] if you need to perform some
+ /// Additionally, you can return a [`Task`] if you need to perform some
/// async action in the background on startup. This is useful if you want to
/// load state from a file, perform an initial HTTP request, etc.
- fn new(flags: Self::Flags) -> (Self, Command<Self::Message>);
+ fn new(flags: Self::Flags) -> (Self, Task<Self::Message>);
/// Returns the current title of the [`Application`].
///
@@ -155,19 +155,23 @@ where
let (proxy, worker) = Proxy::new(event_loop.create_proxy());
- let runtime = {
+ let mut runtime = {
let executor = E::new().map_err(Error::ExecutorCreationFailed)?;
executor.spawn(worker);
Runtime::new(executor, proxy.clone())
};
- let (application, init_command) = {
+ let (application, task) = {
let flags = settings.flags;
runtime.enter(|| A::new(flags))
};
+ if let Some(stream) = task.into_stream() {
+ runtime.run(stream);
+ }
+
let id = settings.id;
let title = application.title();
@@ -183,7 +187,6 @@ where
boot_receiver,
event_receiver,
control_sender,
- init_command,
settings.fonts,
));
@@ -193,7 +196,7 @@ where
instance: std::pin::Pin<Box<F>>,
context: task::Context<'static>,
boot: Option<BootConfig<C>>,
- sender: mpsc::UnboundedSender<winit::event::Event<Message>>,
+ sender: mpsc::UnboundedSender<winit::event::Event<Action<Message>>>,
receiver: mpsc::UnboundedReceiver<winit::event_loop::ControlFlow>,
error: Option<Error>,
#[cfg(target_arch = "wasm32")]
@@ -229,7 +232,7 @@ where
queued_events: Vec::new(),
};
- impl<Message, F, C> winit::application::ApplicationHandler<Message>
+ impl<Message, F, C> winit::application::ApplicationHandler<Action<Message>>
for Runner<Message, F, C>
where
F: Future<Output = ()>,
@@ -393,11 +396,11 @@ where
fn user_event(
&mut self,
event_loop: &winit::event_loop::ActiveEventLoop,
- message: Message,
+ action: Action<Message>,
) {
self.process_event(
event_loop,
- winit::event::Event::UserEvent(message),
+ winit::event::Event::UserEvent(action),
);
}
@@ -416,7 +419,7 @@ where
fn process_event(
&mut self,
event_loop: &winit::event_loop::ActiveEventLoop,
- event: winit::event::Event<Message>,
+ event: winit::event::Event<Action<Message>>,
) {
// On Wasm, events may start being processed before the compositor
// boots up. We simply queue them and process them once ready.
@@ -480,15 +483,14 @@ struct Boot<C> {
async fn run_instance<A, E, C>(
mut application: A,
- mut runtime: Runtime<E, Proxy<A::Message>, A::Message>,
+ mut runtime: Runtime<E, Proxy<A::Message>, Action<A::Message>>,
mut proxy: Proxy<A::Message>,
mut debug: Debug,
mut boot: oneshot::Receiver<Boot<C>>,
mut event_receiver: mpsc::UnboundedReceiver<
- winit::event::Event<A::Message>,
+ winit::event::Event<Action<A::Message>>,
>,
mut control_sender: mpsc::UnboundedSender<winit::event_loop::ControlFlow>,
- init_command: Command<A::Message>,
fonts: Vec<Cow<'static, [u8]>>,
) where
A: Application + 'static,
@@ -518,7 +520,7 @@ async fn run_instance<A, E, C>(
let physical_size = state.physical_size();
let mut clipboard = Clipboard::connect(&window);
- let mut cache = user_interface::Cache::default();
+ let cache = user_interface::Cache::default();
let mut surface = compositor.create_surface(
window.clone(),
physical_size.width,
@@ -530,22 +532,12 @@ async fn run_instance<A, E, C>(
window.set_visible(true);
}
- run_command(
- &application,
- &mut compositor,
- &mut surface,
- &mut cache,
- &state,
- &mut renderer,
- init_command,
- &mut runtime,
- &mut clipboard,
- &mut should_exit,
- &mut proxy,
- &mut debug,
- &window,
+ runtime.track(
+ application
+ .subscription()
+ .map(Action::Output)
+ .into_recipes(),
);
- runtime.track(application.subscription().into_recipes());
let mut user_interface = ManuallyDrop::new(build_user_interface(
&application,
@@ -581,8 +573,21 @@ async fn run_instance<A, E, C>(
),
));
}
- event::Event::UserEvent(message) => {
- messages.push(message);
+ event::Event::UserEvent(action) => {
+ run_action(
+ action,
+ &mut user_interface,
+ &mut compositor,
+ &mut surface,
+ &state,
+ &mut renderer,
+ &mut messages,
+ &mut clipboard,
+ &mut should_exit,
+ &mut debug,
+ &window,
+ );
+
user_events += 1;
}
event::Event::WindowEvent {
@@ -756,21 +761,14 @@ async fn run_instance<A, E, C>(
user_interface::State::Outdated
)
{
- let mut cache =
+ let cache =
ManuallyDrop::into_inner(user_interface).into_cache();
// Update application
update(
&mut application,
- &mut compositor,
- &mut surface,
- &mut cache,
&mut state,
- &mut renderer,
&mut runtime,
- &mut clipboard,
- &mut should_exit,
- &mut proxy,
&mut debug,
&mut messages,
&window,
@@ -855,282 +853,230 @@ where
}
/// Updates an [`Application`] by feeding it the provided messages, spawning any
-/// resulting [`Command`], and tracking its [`Subscription`].
-pub fn update<A: Application, C, E: Executor>(
+/// resulting [`Task`], and tracking its [`Subscription`].
+pub fn update<A: Application, E: Executor>(
application: &mut A,
- compositor: &mut C,
- surface: &mut C::Surface,
- cache: &mut user_interface::Cache,
state: &mut State<A>,
- renderer: &mut A::Renderer,
- runtime: &mut Runtime<E, Proxy<A::Message>, A::Message>,
- clipboard: &mut Clipboard,
- should_exit: &mut bool,
- proxy: &mut Proxy<A::Message>,
+ runtime: &mut Runtime<E, Proxy<A::Message>, Action<A::Message>>,
debug: &mut Debug,
messages: &mut Vec<A::Message>,
window: &winit::window::Window,
) where
- C: Compositor<Renderer = A::Renderer> + 'static,
A::Theme: DefaultStyle,
{
for message in messages.drain(..) {
debug.log_message(&message);
debug.update_started();
- let command = runtime.enter(|| application.update(message));
+ let task = runtime.enter(|| application.update(message));
debug.update_finished();
- run_command(
- application,
- compositor,
- surface,
- cache,
- state,
- renderer,
- command,
- runtime,
- clipboard,
- should_exit,
- proxy,
- debug,
- window,
- );
+ if let Some(stream) = task.into_stream() {
+ runtime.run(stream);
+ }
}
state.synchronize(application, window);
let subscription = application.subscription();
- runtime.track(subscription.into_recipes());
+ runtime.track(subscription.map(Action::Output).into_recipes());
}
-/// Runs the actions of a [`Command`].
-pub fn run_command<A, C, E>(
- application: &A,
+/// Runs the actions of a [`Task`].
+pub fn run_action<A, C>(
+ action: Action<A::Message>,
+ user_interface: &mut UserInterface<'_, A::Message, A::Theme, C::Renderer>,
compositor: &mut C,
surface: &mut C::Surface,
- cache: &mut user_interface::Cache,
state: &State<A>,
renderer: &mut A::Renderer,
- command: Command<A::Message>,
- runtime: &mut Runtime<E, Proxy<A::Message>, A::Message>,
+ messages: &mut Vec<A::Message>,
clipboard: &mut Clipboard,
should_exit: &mut bool,
- proxy: &mut Proxy<A::Message>,
debug: &mut Debug,
window: &winit::window::Window,
) where
A: Application,
- E: Executor,
C: Compositor<Renderer = A::Renderer> + 'static,
A::Theme: DefaultStyle,
{
- use crate::runtime::command;
use crate::runtime::system;
use crate::runtime::window;
- for action in command.actions() {
- match action {
- command::Action::Future(future) => {
- runtime.spawn(future);
+ match action {
+ Action::Clipboard(action) => match action {
+ clipboard::Action::Read { target, channel } => {
+ let _ = channel.send(clipboard.read(target));
}
- command::Action::Stream(stream) => {
- runtime.run(stream);
+ clipboard::Action::Write { target, contents } => {
+ clipboard.write(target, contents);
}
- command::Action::Clipboard(action) => match action {
- clipboard::Action::Read(tag, kind) => {
- let message = tag(clipboard.read(kind));
-
- proxy.send(message);
- }
- clipboard::Action::Write(contents, kind) => {
- clipboard.write(kind, contents);
- }
- },
- command::Action::Window(action) => match action {
- window::Action::Close(_id) => {
- *should_exit = true;
- }
- window::Action::Drag(_id) => {
- let _res = window.drag_window();
- }
- window::Action::Spawn { .. } => {
- log::warn!(
- "Spawning a window is only available with \
+ },
+ Action::Window(action) => match action {
+ window::Action::Close(_id) => {
+ *should_exit = true;
+ }
+ window::Action::Drag(_id) => {
+ let _res = window.drag_window();
+ }
+ window::Action::Open { .. } => {
+ log::warn!(
+ "Spawning a window is only available with \
multi-window applications."
- );
- }
- window::Action::Resize(_id, size) => {
- let _ =
- window.request_inner_size(winit::dpi::LogicalSize {
- width: size.width,
- height: size.height,
- });
- }
- window::Action::FetchSize(_id, callback) => {
- let size =
- window.inner_size().to_logical(window.scale_factor());
+ );
+ }
+ window::Action::Resize(_id, size) => {
+ let _ = window.request_inner_size(winit::dpi::LogicalSize {
+ width: size.width,
+ height: size.height,
+ });
+ }
+ window::Action::FetchSize(_id, channel) => {
+ let size =
+ window.inner_size().to_logical(window.scale_factor());
- proxy.send(callback(Size::new(size.width, size.height)));
- }
- window::Action::FetchMaximized(_id, callback) => {
- proxy.send(callback(window.is_maximized()));
- }
- window::Action::Maximize(_id, maximized) => {
- window.set_maximized(maximized);
- }
- window::Action::FetchMinimized(_id, callback) => {
- proxy.send(callback(window.is_minimized()));
- }
- window::Action::Minimize(_id, minimized) => {
- window.set_minimized(minimized);
- }
- window::Action::FetchPosition(_id, callback) => {
- let position = window
- .inner_position()
- .map(|position| {
- let position = position
- .to_logical::<f32>(window.scale_factor());
-
- Point::new(position.x, position.y)
- })
- .ok();
+ let _ = channel.send(Size::new(size.width, size.height));
+ }
+ window::Action::FetchMaximized(_id, channel) => {
+ let _ = channel.send(window.is_maximized());
+ }
+ window::Action::Maximize(_id, maximized) => {
+ window.set_maximized(maximized);
+ }
+ window::Action::FetchMinimized(_id, channel) => {
+ let _ = channel.send(window.is_minimized());
+ }
+ window::Action::Minimize(_id, minimized) => {
+ window.set_minimized(minimized);
+ }
+ window::Action::FetchPosition(_id, channel) => {
+ let position = window
+ .inner_position()
+ .map(|position| {
+ let position =
+ position.to_logical::<f32>(window.scale_factor());
+
+ Point::new(position.x, position.y)
+ })
+ .ok();
+
+ let _ = channel.send(position);
+ }
+ window::Action::Move(_id, position) => {
+ window.set_outer_position(winit::dpi::LogicalPosition {
+ x: position.x,
+ y: position.y,
+ });
+ }
+ window::Action::ChangeMode(_id, mode) => {
+ window.set_visible(conversion::visible(mode));
+ window.set_fullscreen(conversion::fullscreen(
+ window.current_monitor(),
+ mode,
+ ));
+ }
+ window::Action::ChangeIcon(_id, icon) => {
+ window.set_window_icon(conversion::icon(icon));
+ }
+ window::Action::FetchMode(_id, channel) => {
+ let mode = if window.is_visible().unwrap_or(true) {
+ conversion::mode(window.fullscreen())
+ } else {
+ core::window::Mode::Hidden
+ };
- proxy.send(callback(position));
- }
- window::Action::Move(_id, position) => {
- window.set_outer_position(winit::dpi::LogicalPosition {
- x: position.x,
- y: position.y,
+ let _ = channel.send(mode);
+ }
+ window::Action::ToggleMaximize(_id) => {
+ window.set_maximized(!window.is_maximized());
+ }
+ window::Action::ToggleDecorations(_id) => {
+ window.set_decorations(!window.is_decorated());
+ }
+ window::Action::RequestUserAttention(_id, user_attention) => {
+ window.request_user_attention(
+ user_attention.map(conversion::user_attention),
+ );
+ }
+ window::Action::GainFocus(_id) => {
+ window.focus_window();
+ }
+ window::Action::ChangeLevel(_id, level) => {
+ window.set_window_level(conversion::window_level(level));
+ }
+ window::Action::ShowSystemMenu(_id) => {
+ if let mouse::Cursor::Available(point) = state.cursor() {
+ window.show_window_menu(winit::dpi::LogicalPosition {
+ x: point.x,
+ y: point.y,
});
}
- window::Action::ChangeMode(_id, mode) => {
- window.set_visible(conversion::visible(mode));
- window.set_fullscreen(conversion::fullscreen(
- window.current_monitor(),
- mode,
- ));
- }
- window::Action::ChangeIcon(_id, icon) => {
- window.set_window_icon(conversion::icon(icon));
- }
- window::Action::FetchMode(_id, tag) => {
- let mode = if window.is_visible().unwrap_or(true) {
- conversion::mode(window.fullscreen())
- } else {
- core::window::Mode::Hidden
- };
-
- proxy.send(tag(mode));
- }
- window::Action::ToggleMaximize(_id) => {
- window.set_maximized(!window.is_maximized());
- }
- window::Action::ToggleDecorations(_id) => {
- window.set_decorations(!window.is_decorated());
- }
- window::Action::RequestUserAttention(_id, user_attention) => {
- window.request_user_attention(
- user_attention.map(conversion::user_attention),
- );
- }
- window::Action::GainFocus(_id) => {
- window.focus_window();
- }
- window::Action::ChangeLevel(_id, level) => {
- window.set_window_level(conversion::window_level(level));
- }
- window::Action::ShowSystemMenu(_id) => {
- if let mouse::Cursor::Available(point) = state.cursor() {
- window.show_window_menu(winit::dpi::LogicalPosition {
- x: point.x,
- y: point.y,
- });
- }
- }
- window::Action::FetchId(_id, tag) => {
- proxy.send(tag(window.id().into()));
- }
- window::Action::RunWithHandle(_id, tag) => {
- use window::raw_window_handle::HasWindowHandle;
+ }
+ window::Action::FetchRawId(_id, channel) => {
+ let _ = channel.send(window.id().into());
+ }
+ window::Action::RunWithHandle(_id, f) => {
+ use window::raw_window_handle::HasWindowHandle;
- if let Ok(handle) = window.window_handle() {
- proxy.send(tag(handle));
- }
+ if let Ok(handle) = window.window_handle() {
+ f(handle);
}
+ }
- window::Action::Screenshot(_id, tag) => {
- let bytes = compositor.screenshot(
- renderer,
- surface,
- state.viewport(),
- state.background_color(),
- &debug.overlay(),
- );
-
- proxy.send(tag(window::Screenshot::new(
- bytes,
- state.physical_size(),
- state.viewport().scale_factor(),
- )));
- }
- },
- command::Action::System(action) => match action {
- system::Action::QueryInformation(_tag) => {
- #[cfg(feature = "system")]
- {
- let graphics_info = compositor.fetch_information();
- let mut proxy = proxy.clone();
-
- let _ = std::thread::spawn(move || {
- let information =
- crate::system::information(graphics_info);
-
- let message = _tag(information);
-
- proxy.send(message);
- });
- }
- }
- },
- command::Action::Widget(action) => {
- let mut current_cache = std::mem::take(cache);
- let mut current_operation = Some(action);
-
- let mut user_interface = build_user_interface(
- application,
- current_cache,
+ window::Action::Screenshot(_id, channel) => {
+ let bytes = compositor.screenshot(
renderer,
- state.logical_size(),
- debug,
+ surface,
+ state.viewport(),
+ state.background_color(),
+ &debug.overlay(),
);
- while let Some(mut operation) = current_operation.take() {
- user_interface.operate(renderer, operation.as_mut());
+ let _ = channel.send(window::Screenshot::new(
+ bytes,
+ state.physical_size(),
+ state.viewport().scale_factor(),
+ ));
+ }
+ },
+ Action::System(action) => match action {
+ system::Action::QueryInformation(_channel) => {
+ #[cfg(feature = "system")]
+ {
+ let graphics_info = compositor.fetch_information();
- match operation.finish() {
- operation::Outcome::None => {}
- operation::Outcome::Some(message) => {
- proxy.send(message);
- }
- operation::Outcome::Chain(next) => {
- current_operation = Some(next);
- }
+ let _ = std::thread::spawn(move || {
+ let information =
+ crate::system::information(graphics_info);
+
+ let _ = _channel.send(information);
+ });
+ }
+ }
+ },
+ Action::Widget(operation) => {
+ let mut current_operation = Some(operation);
+
+ while let Some(mut operation) = current_operation.take() {
+ user_interface.operate(renderer, operation.as_mut());
+
+ match operation.finish() {
+ operation::Outcome::None => {}
+ operation::Outcome::Some(()) => {}
+ operation::Outcome::Chain(next) => {
+ current_operation = Some(next);
}
}
-
- current_cache = user_interface.into_cache();
- *cache = current_cache;
}
- command::Action::LoadFont { bytes, tagger } => {
- // TODO: Error handling (?)
- compositor.load_font(bytes);
+ }
+ Action::LoadFont { bytes, channel } => {
+ // TODO: Error handling (?)
+ compositor.load_font(bytes);
- proxy.send(tagger(Ok(())));
- }
- command::Action::Custom(_) => {
- log::warn!("Unsupported custom action in `iced_winit` shell");
- }
+ let _ = channel.send(Ok(()));
+ }
+ Action::Output(message) => {
+ messages.push(message);
}
}
}
generated by cgit (git 2.34.1) at 2025-04-08 20:17:13 +0000