diff options
Diffstat (limited to 'glutin/src/multi_window.rs')
| -rw-r--r-- | glutin/src/multi_window.rs | 1060 |
1 files changed, 1060 insertions, 0 deletions
diff --git a/glutin/src/multi_window.rs b/glutin/src/multi_window.rs new file mode 100644 index 00000000..620d01d8 --- /dev/null +++ b/glutin/src/multi_window.rs @@ -0,0 +1,1060 @@ +//! Create interactive, native cross-platform applications. +use crate::mouse; +use crate::{Error, Executor, Runtime}; + +pub use iced_winit::multi_window::{self, Application, StyleSheet}; + +use iced_winit::conversion; +use iced_winit::futures; +use iced_winit::futures::channel::mpsc; +use iced_winit::renderer; +use iced_winit::user_interface; +use iced_winit::window; +use iced_winit::winit; +use iced_winit::{Clipboard, Command, Debug, Proxy, Settings}; + +use glutin::config::{ + Config, ConfigSurfaceTypes, ConfigTemplateBuilder, GlConfig, +}; +use glutin::context::{ + ContextApi, ContextAttributesBuilder, NotCurrentContext, + NotCurrentGlContextSurfaceAccessor, PossiblyCurrentGlContext, +}; +use glutin::display::{Display, DisplayApiPreference, GlDisplay}; +use glutin::surface::{GlSurface, SwapInterval}; +use raw_window_handle::{HasRawDisplayHandle, HasRawWindowHandle}; + +use crate::application::gl_surface; +use iced_winit::multi_window::Event; +use std::collections::HashMap; +use std::ffi::CString; +use std::mem::ManuallyDrop; +use std::num::NonZeroU32; + +use iced_native::widget::operation; +#[cfg(feature = "tracing")] +use tracing::{info_span, instrument::Instrument}; + +#[allow(unsafe_code)] +const ONE: NonZeroU32 = unsafe { NonZeroU32::new_unchecked(1) }; + +/// Runs an [`Application`] with an executor, compositor, and the provided +/// settings. +pub fn run<A, E, C>( + settings: Settings<A::Flags>, + compositor_settings: C::Settings, +) -> Result<(), Error> +where + A: Application + 'static, + E: Executor + 'static, + C: iced_graphics::window::GLCompositor<Renderer = A::Renderer> + 'static, + <A::Renderer as iced_native::Renderer>::Theme: StyleSheet, +{ + use futures::task; + use futures::Future; + use winit::event_loop::EventLoopBuilder; + use winit::platform::run_return::EventLoopExtRunReturn; + + #[cfg(feature = "trace")] + let _guard = iced_winit::Profiler::init(); + + let mut debug = Debug::new(); + debug.startup_started(); + + #[cfg(feature = "tracing")] + let _ = info_span!("Application::Glutin", "RUN").entered(); + + let mut event_loop = EventLoopBuilder::with_user_event().build(); + let proxy = event_loop.create_proxy(); + + let runtime = { + let executor = E::new().map_err(Error::ExecutorCreationFailed)?; + let proxy = Proxy::new(event_loop.create_proxy()); + + Runtime::new(executor, proxy) + }; + + let (application, init_command) = { + let flags = settings.flags; + + runtime.enter(|| A::new(flags)) + }; + + let builder = settings.window.into_builder( + &application.title(window::Id::MAIN), + event_loop.primary_monitor(), + settings.id, + ); + + log::info!("Window builder: {:#?}", builder); + + #[allow(unsafe_code)] + let (display, window, configuration, surface, context) = unsafe { + struct Configuration(Config); + use std::fmt; + impl fmt::Debug for Configuration { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + let config = &self.0; + + f.debug_struct("Configuration") + .field("raw", &config) + .field("samples", &config.num_samples()) + .field("buffer_type", &config.color_buffer_type()) + .field("surface_type", &config.config_surface_types()) + .field("depth", &config.depth_size()) + .field("alpha", &config.alpha_size()) + .field("stencil", &config.stencil_size()) + .field("float_pixels", &config.float_pixels()) + .field("srgb", &config.srgb_capable()) + .field("api", &config.api()) + .finish() + } + } + + impl AsRef<Config> for Configuration { + fn as_ref(&self) -> &Config { + &self.0 + } + } + + let display_handle = event_loop.raw_display_handle(); + + #[cfg(all( + any(windows, target_os = "macos"), + not(target_arch = "wasm32") + ))] + let (window, window_handle) = { + let window = builder + .build(&event_loop) + .map_err(Error::WindowCreationFailed)?; + + let handle = window.raw_window_handle(); + + (window, handle) + }; + + #[cfg(target_arch = "wasm32")] + let preference = Err(Error::GraphicsCreationFailed( + iced_graphics::Error::BackendError(format!( + "target not supported by backend" + )), + ))?; + + #[cfg(all(windows, not(target_arch = "wasm32")))] + let preference = DisplayApiPreference::WglThenEgl(Some(window_handle)); + + #[cfg(all(target_os = "macos", not(target_arch = "wasm32")))] + let preference = DisplayApiPreference::Cgl; + + #[cfg(all( + unix, + not(target_os = "macos"), + not(target_arch = "wasm32") + ))] + let preference = DisplayApiPreference::GlxThenEgl(Box::new( + winit::platform::unix::register_xlib_error_hook, + )); + + let display = + Display::new(display_handle, preference).map_err(|error| { + Error::GraphicsCreationFailed( + iced_graphics::Error::BackendError(format!( + "failed to create display: {error}" + )), + ) + })?; + + log::debug!("Display: {}", display.version_string()); + + let samples = C::sample_count(&compositor_settings) as u8; + let mut template = ConfigTemplateBuilder::new() + .with_surface_type(ConfigSurfaceTypes::WINDOW); + + if samples != 0 { + template = template.with_multisampling(samples); + } + + #[cfg(all(windows, not(target_arch = "wasm32")))] + let template = template.compatible_with_native_window(window_handle); + + log::debug!("Searching for display configurations"); + let configuration = display + .find_configs(template.build()) + .map_err(|_| { + Error::GraphicsCreationFailed( + iced_graphics::Error::NoAvailablePixelFormat, + ) + })? + .map(Configuration) + .inspect(|config| { + log::trace!("{config:#?}"); + }) + .min_by_key(|config| { + config.as_ref().num_samples().saturating_sub(samples) + }) + .ok_or(Error::GraphicsCreationFailed( + iced_graphics::Error::NoAvailablePixelFormat, + ))?; + + log::debug!("Selected: {configuration:#?}"); + + #[cfg(all( + unix, + not(target_os = "macos"), + not(target_arch = "wasm32") + ))] + let (window, window_handle) = { + use glutin::platform::x11::X11GlConfigExt; + let builder = + if let Some(visual) = configuration.as_ref().x11_visual() { + use winit::platform::unix::WindowBuilderExtUnix; + builder.with_x11_visual(visual.into_raw()) + } else { + builder + }; + + let window = builder + .build(&event_loop) + .map_err(Error::WindowCreationFailed)?; + + let handle = window.raw_window_handle(); + + (window, handle) + }; + + let attributes = + ContextAttributesBuilder::new().build(Some(window_handle)); + let fallback_attributes = ContextAttributesBuilder::new() + .with_context_api(ContextApi::Gles(None)) + .build(Some(window_handle)); + + let context = display + .create_context(configuration.as_ref(), &attributes) + .or_else(|_| { + display.create_context( + configuration.as_ref(), + &fallback_attributes, + ) + }) + .map_err(|error| { + Error::GraphicsCreationFailed( + iced_graphics::Error::BackendError(format!( + "failed to create context: {error}" + )), + ) + })?; + + let surface = gl_surface(&display, configuration.as_ref(), &window) + .map_err(|error| { + Error::GraphicsCreationFailed( + iced_graphics::Error::BackendError(format!( + "failed to create surface: {error}" + )), + ) + })?; + + (display, window, configuration.0, surface, context) + }; + + let windows: HashMap<window::Id, winit::window::Window> = + HashMap::from([(window::Id::MAIN, window)]); + + // need to make context current before trying to load GL functions + let context = context + .make_current(&surface) + .expect("Make context current."); + + #[allow(unsafe_code)] + let (compositor, renderer) = unsafe { + C::new(compositor_settings, |address| { + let address = CString::new(address).expect("address error"); + display.get_proc_address(address.as_c_str()) + })? + }; + + let context = context.make_not_current().expect("Make not current."); + + let (mut sender, receiver) = mpsc::unbounded(); + + let mut instance = Box::pin({ + let run_instance = run_instance::<A, E, C>( + application, + compositor, + renderer, + runtime, + proxy, + debug, + receiver, + display, + windows, + configuration, + context, + init_command, + settings.exit_on_close_request, + ); + + #[cfg(feature = "tracing")] + let run_instance = + run_instance.instrument(info_span!("Application", "LOOP")); + + run_instance + }); + + let mut context = task::Context::from_waker(task::noop_waker_ref()); + + let _ = event_loop.run_return(move |event, event_loop, control_flow| { + use winit::event_loop::ControlFlow; + + if let ControlFlow::ExitWithCode(_) = control_flow { + return; + } + + let event = match event { + winit::event::Event::WindowEvent { + event: + winit::event::WindowEvent::ScaleFactorChanged { + new_inner_size, + .. + }, + window_id, + } => Some(winit::event::Event::WindowEvent { + event: winit::event::WindowEvent::Resized(*new_inner_size), + window_id, + }), + winit::event::Event::UserEvent(Event::NewWindow { + id, + settings, + title, + }) => { + let window = settings + .into_builder(&title, event_loop.primary_monitor(), None) + .build(event_loop) + .expect("Failed to build window"); + + Some(winit::event::Event::UserEvent(Event::WindowCreated( + id, window, + ))) + } + _ => event.to_static(), + }; + + if let Some(event) = event { + sender.start_send(event).expect("Send event"); + + let poll = instance.as_mut().poll(&mut context); + + *control_flow = match poll { + task::Poll::Pending => ControlFlow::Wait, + task::Poll::Ready(_) => ControlFlow::Exit, + }; + } + }); + + Ok(()) +} + +async fn run_instance<A, E, C>( + mut application: A, + mut compositor: C, + mut renderer: A::Renderer, + mut runtime: Runtime<E, Proxy<Event<A::Message>>, Event<A::Message>>, + mut proxy: winit::event_loop::EventLoopProxy<Event<A::Message>>, + mut debug: Debug, + mut receiver: mpsc::UnboundedReceiver< + winit::event::Event<'_, Event<A::Message>>, + >, + display: Display, + mut windows: HashMap<window::Id, winit::window::Window>, + configuration: Config, + mut context: NotCurrentContext, + init_command: Command<A::Message>, + _exit_on_close_request: bool, +) where + A: Application + 'static, + E: Executor + 'static, + C: iced_graphics::window::GLCompositor<Renderer = A::Renderer> + 'static, + <A::Renderer as iced_native::Renderer>::Theme: StyleSheet, +{ + use iced_winit::futures::stream::StreamExt; + use winit::event; + + let mut clipboard = + Clipboard::connect(windows.values().next().expect("No window found")); + let mut caches = HashMap::new(); + let mut current_context_window = None; + let mut window_ids: HashMap<_, _> = windows + .iter() + .map(|(&id, window)| (window.id(), id)) + .collect(); + let mut states = HashMap::new(); + let mut surfaces = HashMap::new(); + let mut interfaces = ManuallyDrop::new(HashMap::new()); + + for (&id, window) in windows.keys().zip(windows.values()) { + let surface = gl_surface(&display, &configuration, &window) + .expect("Create surface."); + let current_context = + context.make_current(&surface).expect("Make current."); + let state = multi_window::State::new(&application, id, &window); + let physical_size = state.physical_size(); + + surface.resize( + ¤t_context, + NonZeroU32::new(physical_size.width).unwrap_or(ONE), + NonZeroU32::new(physical_size.height).unwrap_or(ONE), + ); + + let user_interface = multi_window::build_user_interface( + &application, + user_interface::Cache::default(), + &mut renderer, + state.logical_size(), + &mut debug, + id, + ); + + context = current_context + .make_not_current() + .expect("Make not current."); + + let _ = states.insert(id, state); + let _ = surfaces.insert(id, surface); + let _ = interfaces.insert(id, user_interface); + } + + run_command( + &application, + &mut caches, + &states, + &mut renderer, + init_command, + &mut runtime, + &mut clipboard, + &mut proxy, + &mut debug, + &windows, + || compositor.fetch_information(), + ); + + runtime.track(application.subscription().map(Event::Application)); + + let mut mouse_interaction = mouse::Interaction::default(); + let mut events = Vec::new(); + let mut messages = Vec::new(); + + debug.startup_finished(); + + 'main: while let Some(event) = receiver.next().await { + match event { + event::Event::MainEventsCleared => { + for id in windows.keys().copied() { + let (filtered, remaining): (Vec<_>, Vec<_>) = + events.iter().cloned().partition( + |(window_id, _event): &( + Option<window::Id>, + iced_native::event::Event, + )| { + *window_id == Some(id) || *window_id == None + }, + ); + + events.retain(|el| remaining.contains(el)); + let filtered: Vec<_> = filtered + .into_iter() + .map(|(_id, event)| event) + .collect(); + + let cursor_position = + states.get(&id).unwrap().cursor_position(); + let window = windows.get(&id).unwrap(); + + if filtered.is_empty() && messages.is_empty() { + continue; + } + + debug.event_processing_started(); + + let (interface_state, statuses) = { + let user_interface = interfaces.get_mut(&id).unwrap(); + user_interface.update( + &filtered, + cursor_position, + &mut renderer, + &mut clipboard, + &mut messages, + ) + }; + + debug.event_processing_finished(); + + for event in filtered.into_iter().zip(statuses.into_iter()) + { + runtime.broadcast(event); + } + + if !messages.is_empty() + || matches!( + interface_state, + user_interface::State::Outdated + ) + { + let user_interfaces: HashMap<_, _> = + ManuallyDrop::into_inner(interfaces) + .drain() + .map(|(id, interface)| { + (id, interface.into_cache()) + }) + .collect(); + + // Update application + update( + &mut application, + &mut caches, + &states, + &mut renderer, + &mut runtime, + &mut clipboard, + &mut proxy, + &mut debug, + &mut messages, + &windows, + || compositor.fetch_information(), + ); + + // Update window + states.get_mut(&id).unwrap().synchronize( + &application, + id, + windows.get(&id).expect("No window found with ID."), + ); + + let should_exit = application.should_exit(); + + interfaces = ManuallyDrop::new(build_user_interfaces( + &application, + &mut renderer, + &mut debug, + &states, + user_interfaces, + )); + + if should_exit { + break 'main; + } + } + + debug.draw_started(); + let new_mouse_interaction = { + let user_interface = interfaces.get_mut(&id).unwrap(); + let state = states.get(&id).unwrap(); + + user_interface.draw( + &mut renderer, + state.theme(), + &renderer::Style { + text_color: state.text_color(), + }, + state.cursor_position(), + ) + }; + debug.draw_finished(); + + if new_mouse_interaction != mouse_interaction { + window.set_cursor_icon(conversion::mouse_interaction( + new_mouse_interaction, + )); + + mouse_interaction = new_mouse_interaction; + } + + window.request_redraw(); + } + } + event::Event::PlatformSpecific(event::PlatformSpecific::MacOS( + event::MacOS::ReceivedUrl(url), + )) => { + use iced_native::event; + events.push(( + None, + iced_native::Event::PlatformSpecific( + event::PlatformSpecific::MacOS( + event::MacOS::ReceivedUrl(url), + ), + ), + )); + } + event::Event::UserEvent(event) => match event { + Event::Application(message) => messages.push(message), + Event::WindowCreated(id, window) => { + let state = + multi_window::State::new(&application, id, &window); + let user_interface = multi_window::build_user_interface( + &application, + user_interface::Cache::default(), + &mut renderer, + state.logical_size(), + &mut debug, + id, + ); + + let surface = gl_surface(&display, &configuration, &window) + .expect("Create surface."); + + let _ = states.insert(id, state); + let _ = interfaces.insert(id, user_interface); + let _ = window_ids.insert(window.id(), id); + let _ = windows.insert(id, window); + let _ = surfaces.insert(id, surface); + } + Event::CloseWindow(id) => { + // TODO(derezzedex): log errors + if let Some(window) = windows.get(&id) { + if window_ids.remove(&window.id()).is_none() { + println!("Failed to remove from `window_ids`!"); + } + } + if states.remove(&id).is_none() { + println!("Failed to remove from `states`!") + } + if interfaces.remove(&id).is_none() { + println!("Failed to remove from `interfaces`!"); + } + if surfaces.remove(&id).is_none() { + println!("Failed to remove from `surfaces`!") + } + if windows.remove(&id).is_none() { + println!("Failed to remove from `windows`!") + } + + if windows.is_empty() { + break 'main; + } + } + Event::NewWindow { .. } => unreachable!(), + }, + event::Event::RedrawRequested(id) => { + #[cfg(feature = "tracing")] + let _ = info_span!("Application", "FRAME").entered(); + + let state = window_ids + .get(&id) + .and_then(|id| states.get_mut(id)) + .unwrap(); + let window = + window_ids.get(&id).and_then(|id| windows.get(id)).unwrap(); + + let surface = window_ids + .get(&id) + .and_then(|id| surfaces.get(id)) + .unwrap(); + + debug.render_started(); + + let current_context = + context.make_current(&surface).expect("Make current."); + + if current_context_window != Some(id) { + current_context_window = Some(id); + } + + if state.viewport_changed() { + let physical_size = state.physical_size(); + let logical_size = state.logical_size(); + + let mut user_interface = window_ids + .get(&id) + .and_then(|id| interfaces.remove(id)) + .unwrap(); + + debug.layout_started(); + user_interface = + user_interface.relayout(logical_size, &mut renderer); + debug.layout_finished(); + + debug.draw_started(); + let new_mouse_interaction = user_interface.draw( + &mut renderer, + state.theme(), + &renderer::Style { + text_color: state.text_color(), + }, + state.cursor_position(), + ); + debug.draw_finished(); + + if new_mouse_interaction != mouse_interaction { + window.set_cursor_icon(conversion::mouse_interaction( + new_mouse_interaction, + )); + + mouse_interaction = new_mouse_interaction; + } + + surface.resize( + ¤t_context, + NonZeroU32::new(physical_size.width).unwrap_or(ONE), + NonZeroU32::new(physical_size.height).unwrap_or(ONE), + ); + + if let Err(_) = surface.set_swap_interval( + ¤t_context, + SwapInterval::Wait(ONE), + ) { + log::error!("Could not set swap interval for surface attached to window id: {:?}", id); + } + + compositor.resize_viewport(physical_size); + + let _ = interfaces + .insert(*window_ids.get(&id).unwrap(), user_interface); + } + + compositor.present( + &mut renderer, + state.viewport(), + state.background_color(), + &debug.overlay(), + ); + + surface + .swap_buffers(¤t_context) + .expect("Swap buffers"); + + context = current_context + .make_not_current() + .expect("Make not current."); + debug.render_finished(); + // TODO: Handle animations! + // Maybe we can use `ControlFlow::WaitUntil` for this. + } + event::Event::WindowEvent { + event: window_event, + window_id, + } => { + // dbg!(window_id); + if let Some(window) = + window_ids.get(&window_id).and_then(|id| windows.get(id)) + { + if let Some(state) = window_ids + .get(&window_id) + .and_then(|id| states.get_mut(id)) + { + if multi_window::requests_exit( + &window_event, + state.modifiers(), + ) { + if let Some(id) = + window_ids.get(&window_id).cloned() + { + let message = application.close_requested(id); + messages.push(message); + } + } + + state.update(window, &window_event, &mut debug); + + if let Some(event) = conversion::window_event( + *window_ids.get(&window_id).unwrap(), + &window_event, + state.scale_factor(), + state.modifiers(), + ) { + events.push(( + window_ids.get(&window_id).cloned(), + event, + )); + } + } else { + log::error!( + "Window state not found for id: {:?}", + window_id + ); + } + } else { + log::error!("Window not found for id: {:?}", window_id); + } + } + _ => {} + } + } + + // Manually drop the user interface + // drop(ManuallyDrop::into_inner(user_interface)); +} + +/// Updates an [`Application`] by feeding it the provided messages, spawning any +/// resulting [`Command`], and tracking its [`Subscription`]. +pub fn update<A: Application, E: Executor>( + application: &mut A, + caches: &mut HashMap<window::Id, user_interface::Cache>, + states: &HashMap<window::Id, multi_window::State<A>>, + renderer: &mut A::Renderer, + runtime: &mut Runtime<E, Proxy<Event<A::Message>>, Event<A::Message>>, + clipboard: &mut Clipboard, + proxy: &mut winit::event_loop::EventLoopProxy<Event<A::Message>>, + debug: &mut Debug, + messages: &mut Vec<A::Message>, + windows: &HashMap<window::Id, winit::window::Window>, + graphics_info: impl FnOnce() -> iced_graphics::compositor::Information + Copy, +) where + A: Application + 'static, + <A::Renderer as crate::Renderer>::Theme: StyleSheet, +{ + for message in messages.drain(..) { + debug.log_message(&message); + + debug.update_started(); + let command = runtime.enter(|| application.update(message)); + debug.update_finished(); + + run_command( + application, + caches, + &states, + renderer, + command, + runtime, + clipboard, + proxy, + debug, + windows, + graphics_info, + ); + } + + let subscription = application.subscription().map(Event::Application); + runtime.track(subscription); +} + +/// Runs the actions of a [`Command`]. +pub fn run_command<A, E>( + application: &A, + caches: &mut HashMap<window::Id, user_interface::Cache>, + states: &HashMap<window::Id, multi_window::State<A>>, + renderer: &mut A::Renderer, + command: Command<A::Message>, + runtime: &mut Runtime<E, Proxy<Event<A::Message>>, Event<A::Message>>, + clipboard: &mut Clipboard, + proxy: &mut winit::event_loop::EventLoopProxy<Event<A::Message>>, + debug: &mut Debug, + windows: &HashMap<window::Id, winit::window::Window>, + _graphics_info: impl FnOnce() -> iced_graphics::compositor::Information + Copy, +) where + A: Application + 'static, + E: Executor, + <A::Renderer as crate::Renderer>::Theme: StyleSheet, +{ + use iced_native::command; + use iced_native::system; + use iced_native::window; + use iced_winit::clipboard; + use iced_winit::futures::FutureExt; + + for action in command.actions() { + match action { + command::Action::Future(future) => { + runtime.spawn(Box::pin(future.map(Event::Application))); + } + command::Action::Clipboard(action) => match action { + clipboard::Action::Read(tag) => { + let message = tag(clipboard.read()); + + proxy + .send_event(Event::Application(message)) + .expect("Send message to event loop"); + } + clipboard::Action::Write(contents) => { + clipboard.write(contents); + } + }, + command::Action::Window(id, action) => match action { + window::Action::Spawn { settings } => { + proxy + .send_event(Event::NewWindow { + id, + settings: settings.into(), + title: application.title(id), + }) + .expect("Send message to event loop"); + } + window::Action::Close => { + proxy + .send_event(Event::CloseWindow(id)) + .expect("Send message to event loop"); + } + window::Action::Drag => { + let window = windows.get(&id).expect("No window found"); + let _res = window.drag_window(); + } + window::Action::Resize { width, height } => { + let window = windows.get(&id).expect("No window found"); + window.set_inner_size(winit::dpi::LogicalSize { + width, + height, + }); + } + window::Action::Move { x, y } => { + let window = windows.get(&id).expect("No window found"); + window.set_outer_position(winit::dpi::LogicalPosition { + x, + y, + }); + } + window::Action::ChangeMode(mode) => { + let window = windows.get(&id).expect("No window found"); + window.set_visible(conversion::visible(mode)); + window.set_fullscreen(conversion::fullscreen( + window.primary_monitor(), + mode, + )); + } + window::Action::FetchMode(tag) => { + let window = windows.get(&id).expect("No window found"); + let mode = if window.is_visible().unwrap_or(true) { + conversion::mode(window.fullscreen()) + } else { + window::Mode::Hidden + }; + + proxy + .send_event(Event::Application(tag(mode))) + .expect("Send message to event loop"); + } + window::Action::Maximize(value) => { + let window = windows.get(&id).expect("No window found!"); + window.set_maximized(value); + } + window::Action::Minimize(value) => { + let window = windows.get(&id).expect("No window found!"); + window.set_minimized(value); + } + window::Action::ToggleMaximize => { + let window = windows.get(&id).expect("No window found!"); + window.set_maximized(!window.is_maximized()); + } + window::Action::ToggleDecorations => { + let window = windows.get(&id).expect("No window found!"); + window.set_decorations(!window.is_decorated()); + } + window::Action::RequestUserAttention(attention_type) => { + let window = windows.get(&id).expect("No window found!"); + window.request_user_attention( + attention_type.map(conversion::user_attention), + ); + } + window::Action::GainFocus => { + let window = windows.get(&id).expect("No window found!"); + window.focus_window(); + } + window::Action::ChangeAlwaysOnTop(on_top) => { + let window = windows.get(&id).expect("No window found!"); + window.set_always_on_top(on_top); + } + window::Action::FetchId(tag) => { + let window = windows.get(&id).expect("No window found!"); + + proxy + .send_event(Event::Application(tag(window.id().into()))) + .expect("Send message to event loop.") + } + }, + command::Action::System(action) => match action { + system::Action::QueryInformation(_tag) => { + #[cfg(feature = "iced_winit/system")] + { + let graphics_info = _graphics_info(); + let proxy = proxy.clone(); + + let _ = std::thread::spawn(move || { + let information = + crate::system::information(graphics_info); + + let message = _tag(information); + + proxy + .send_event(Event::Application(message)) + .expect("Send message to event loop") + }); + } + } + }, + command::Action::Widget(action) => { + let mut current_caches = std::mem::take(caches); + let mut current_operation = Some(action.into_operation()); + + let mut user_interfaces = multi_window::build_user_interfaces( + application, + renderer, + debug, + states, + current_caches, + ); + + while let Some(mut operation) = current_operation.take() { + for user_interface in user_interfaces.values_mut() { + user_interface.operate(renderer, operation.as_mut()); + + match operation.finish() { + operation::Outcome::None => {} + operation::Outcome::Some(message) => { + proxy + .send_event(Event::Application(message)) + .expect("Send message to event loop"); + } + operation::Outcome::Chain(next) => { + current_operation = Some(next); + } + } + } + } + + let user_interfaces: HashMap<_, _> = user_interfaces + .drain() + .map(|(id, interface)| (id, interface.into_cache())) + .collect(); + + current_caches = user_interfaces; + *caches = current_caches; + } + } + } +} + +/// TODO(derezzedex) +pub fn build_user_interfaces<'a, A>( + application: &'a A, + renderer: &mut A::Renderer, + debug: &mut Debug, + states: &HashMap<window::Id, multi_window::State<A>>, + mut user_interfaces: HashMap<window::Id, user_interface::Cache>, +) -> HashMap< + window::Id, + iced_winit::UserInterface< + 'a, + <A as Application>::Message, + <A as Application>::Renderer, + >, +> +where + A: Application + 'static, + <A::Renderer as crate::Renderer>::Theme: StyleSheet, +{ + let mut interfaces = HashMap::new(); + + for (id, pure_state) in user_interfaces.drain() { + let state = &states.get(&id).unwrap(); + + let user_interface = multi_window::build_user_interface( + application, + pure_state, + renderer, + state.logical_size(), + debug, + id, + ); + + let _ = interfaces.insert(id, user_interface); + } + + interfaces +} |