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winit-core: move ActiveEventLoop

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This commit is contained in:
Kirill Chibisov 2025-05-03 20:02:59 +09:00
parent b4c5b76155
commit 056421546a
3 changed files with 123 additions and 122 deletions
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121
src/event_loop.rs
View file

@ -8,7 +8,6 @@
//!
//! See the root-level documentation for information on how to create and use an event loop to
//! handle events.
use std::fmt;
use std::marker::PhantomData;
#[cfg(any(x11_platform, wayland_platform))]
use std::os::unix::io::{AsFd, AsRawFd, BorrowedFd, RawFd};
@ -20,10 +19,7 @@ pub use winit_core::event_loop::*;
use crate::application::ApplicationHandler;
use crate::cursor::{CustomCursor, CustomCursorSource};
use crate::error::{EventLoopError, RequestError};
use crate::monitor::MonitorHandle;
use crate::platform_impl;
use crate::utils::{impl_dyn_casting, AsAny};
use crate::window::{Theme, Window, WindowAttributes};
/// Provides a way to retrieve events from the system and from the windows that were registered to
/// the events loop.
@ -296,120 +292,3 @@ impl AsRawFd for EventLoop {
self.event_loop.as_raw_fd()
}
}
pub trait ActiveEventLoop: AsAny + fmt::Debug {
/// Creates an [`EventLoopProxy`] that can be used to dispatch user events
/// to the main event loop, possibly from another thread.
fn create_proxy(&self) -> EventLoopProxy;
/// Create the window.
///
/// Possible causes of error include denied permission, incompatible system, and lack of memory.
///
/// ## Platform-specific
///
/// - **Web:** The window is created but not inserted into the Web page automatically. Please
/// see the Web platform module for more information.
fn create_window(
&self,
window_attributes: WindowAttributes,
) -> Result<Box<dyn Window>, RequestError>;
/// Create custom cursor.
///
/// ## Platform-specific
///
/// **iOS / Android / Orbital:** Unsupported.
fn create_custom_cursor(
&self,
custom_cursor: CustomCursorSource,
) -> Result<CustomCursor, RequestError>;
/// Returns the list of all the monitors available on the system.
///
/// ## Platform-specific
///
/// **Web:** Only returns the current monitor without
#[cfg_attr(
web_platform,
doc = "[detailed monitor permissions][crate::platform::web::ActiveEventLoopExtWeb::request_detailed_monitor_permission]."
)]
#[cfg_attr(not(web_platform), doc = "detailed monitor permissions.")]
fn available_monitors(&self) -> Box<dyn Iterator<Item = MonitorHandle>>;
/// Returns the primary monitor of the system.
///
/// Returns `None` if it can't identify any monitor as a primary one.
///
/// ## Platform-specific
///
/// - **Wayland:** Always returns `None`.
/// - **Web:** Always returns `None` without
#[cfg_attr(
web_platform,
doc = " [detailed monitor permissions][crate::platform::web::ActiveEventLoopExtWeb::request_detailed_monitor_permission]."
)]
#[cfg_attr(not(web_platform), doc = " detailed monitor permissions.")]
fn primary_monitor(&self) -> Option<MonitorHandle>;
/// Change if or when [`DeviceEvent`]s are captured.
///
/// Since the [`DeviceEvent`] capture can lead to high CPU usage for unfocused windows, winit
/// will ignore them by default for unfocused windows on Linux/BSD. This method allows changing
/// this at runtime to explicitly capture them again.
///
/// ## Platform-specific
///
/// - **Wayland / macOS / iOS / Android / Orbital:** Unsupported.
///
/// [`DeviceEvent`]: crate::event::DeviceEvent
fn listen_device_events(&self, allowed: DeviceEvents);
/// Returns the current system theme.
///
/// Returns `None` if it cannot be determined on the current platform.
///
/// ## Platform-specific
///
/// - **iOS / Android / Wayland / x11 / Orbital:** Unsupported.
fn system_theme(&self) -> Option<Theme>;
/// Sets the [`ControlFlow`].
fn set_control_flow(&self, control_flow: ControlFlow);
/// Gets the current [`ControlFlow`].
fn control_flow(&self) -> ControlFlow;
/// Stop the event loop.
///
/// ## Platform-specific
///
/// ### iOS
///
/// It is not possible to programmatically exit/quit an application on iOS, so this function is
/// a no-op there. See also [this technical Q&A][qa1561].
///
/// [qa1561]: https://developer.apple.com/library/archive/qa/qa1561/_index.html
fn exit(&self);
/// Returns whether the [`EventLoop`] is about to stop.
///
/// Set by [`exit()`][Self::exit].
fn exiting(&self) -> bool;
/// Gets a persistent reference to the underlying platform display.
///
/// See the [`OwnedDisplayHandle`] type for more information.
fn owned_display_handle(&self) -> OwnedDisplayHandle;
/// Get the raw-window-handle handle.
fn rwh_06_handle(&self) -> &dyn HasDisplayHandle;
}
impl HasDisplayHandle for dyn ActiveEventLoop + '_ {
fn display_handle(&self) -> Result<DisplayHandle<'_>, HandleError> {
self.rwh_06_handle().display_handle()
}
}
impl_dyn_casting!(ActiveEventLoop);

1
src/lib.rs
View file

@ -306,6 +306,5 @@ pub use winit_core::{error, icon, keyboard, monitor, window};
#[macro_use]
mod os_error;
mod platform_impl;
use winit_core::as_any as utils;
pub mod platform;

123
winit-core/src/event_loop.rs
View file

@ -8,6 +8,129 @@ use rwh_06::{DisplayHandle, HandleError, HasDisplayHandle};
#[cfg(web_platform)]
use web_time::{Duration, Instant};
use crate::as_any::AsAny;
use crate::cursor::{CustomCursor, CustomCursorSource};
use crate::error::RequestError;
use crate::monitor::MonitorHandle;
use crate::window::{Theme, Window, WindowAttributes};
pub trait ActiveEventLoop: AsAny + fmt::Debug {
/// Creates an [`EventLoopProxy`] that can be used to dispatch user events
/// to the main event loop, possibly from another thread.
fn create_proxy(&self) -> EventLoopProxy;
/// Create the window.
///
/// Possible causes of error include denied permission, incompatible system, and lack of memory.
///
/// ## Platform-specific
///
/// - **Web:** The window is created but not inserted into the Web page automatically. Please
/// see the Web platform module for more information.
fn create_window(
&self,
window_attributes: WindowAttributes,
) -> Result<Box<dyn Window>, RequestError>;
/// Create custom cursor.
///
/// ## Platform-specific
///
/// **iOS / Android / Orbital:** Unsupported.
fn create_custom_cursor(
&self,
custom_cursor: CustomCursorSource,
) -> Result<CustomCursor, RequestError>;
/// Returns the list of all the monitors available on the system.
///
/// ## Platform-specific
///
/// **Web:** Only returns the current monitor without
#[cfg_attr(
web_platform,
doc = "[detailed monitor permissions][crate::platform::web::ActiveEventLoopExtWeb::request_detailed_monitor_permission]."
)]
#[cfg_attr(not(web_platform), doc = "detailed monitor permissions.")]
fn available_monitors(&self) -> Box<dyn Iterator<Item = MonitorHandle>>;
/// Returns the primary monitor of the system.
///
/// Returns `None` if it can't identify any monitor as a primary one.
///
/// ## Platform-specific
///
/// - **Wayland:** Always returns `None`.
/// - **Web:** Always returns `None` without
#[cfg_attr(
web_platform,
doc = " [detailed monitor permissions][crate::platform::web::ActiveEventLoopExtWeb::request_detailed_monitor_permission]."
)]
#[cfg_attr(not(web_platform), doc = " detailed monitor permissions.")]
fn primary_monitor(&self) -> Option<MonitorHandle>;
/// Change if or when [`DeviceEvent`]s are captured.
///
/// Since the [`DeviceEvent`] capture can lead to high CPU usage for unfocused windows, winit
/// will ignore them by default for unfocused windows on Linux/BSD. This method allows changing
/// this at runtime to explicitly capture them again.
///
/// ## Platform-specific
///
/// - **Wayland / macOS / iOS / Android / Orbital:** Unsupported.
///
/// [`DeviceEvent`]: crate::event::DeviceEvent
fn listen_device_events(&self, allowed: DeviceEvents);
/// Returns the current system theme.
///
/// Returns `None` if it cannot be determined on the current platform.
///
/// ## Platform-specific
///
/// - **iOS / Android / Wayland / x11 / Orbital:** Unsupported.
fn system_theme(&self) -> Option<Theme>;
/// Sets the [`ControlFlow`].
fn set_control_flow(&self, control_flow: ControlFlow);
/// Gets the current [`ControlFlow`].
fn control_flow(&self) -> ControlFlow;
/// Stop the event loop.
///
/// ## Platform-specific
///
/// ### iOS
///
/// It is not possible to programmatically exit/quit an application on iOS, so this function is
/// a no-op there. See also [this technical Q&A][qa1561].
///
/// [qa1561]: https://developer.apple.com/library/archive/qa/qa1561/_index.html
fn exit(&self);
/// Returns whether the [`EventLoop`] is about to stop.
///
/// Set by [`exit()`][Self::exit].
fn exiting(&self) -> bool;
/// Gets a persistent reference to the underlying platform display.
///
/// See the [`OwnedDisplayHandle`] type for more information.
fn owned_display_handle(&self) -> OwnedDisplayHandle;
/// Get the raw-window-handle handle.
fn rwh_06_handle(&self) -> &dyn HasDisplayHandle;
}
impl HasDisplayHandle for dyn ActiveEventLoop + '_ {
fn display_handle(&self) -> Result<DisplayHandle<'_>, HandleError> {
self.rwh_06_handle().display_handle()
}
}
impl_dyn_casting!(ActiveEventLoop);
/// Control the [`EventLoop`], possibly from a different thread, without referencing it directly.
#[derive(Clone, Debug)]
pub struct EventLoopProxy {