1//! An event loop's sink to deliver events from the Wayland event callbacks.
2
3use std::vec::Drain;
4
5use crate::event::{DeviceEvent, DeviceId as RootDeviceId, Event, WindowEvent};
6use crate::platform_impl::platform::DeviceId as PlatformDeviceId;
7use crate::window::WindowId as RootWindowId;
8
9use super::{DeviceId, WindowId};
10
11/// An event loop's sink to deliver events from the Wayland event callbacks
12/// to the winit's user.
13#[derive(Default)]
14pub struct EventSink {
15 pub window_events: Vec<Event<()>>,
16}
17
18impl EventSink {
19 pub fn new() -> Self {
20 Default::default()
21 }
22
23 /// Return `true` if there're pending events.
24 #[inline]
25 pub fn is_empty(&self) -> bool {
26 self.window_events.is_empty()
27 }
28
29 /// Add new device event to a queue.
30 #[inline]
31 pub fn push_device_event(&mut self, event: DeviceEvent, device_id: DeviceId) {
32 self.window_events.push(Event::DeviceEvent {
33 event,
34 device_id: RootDeviceId(PlatformDeviceId::Wayland(device_id)),
35 });
36 }
37
38 /// Add new window event to a queue.
39 #[inline]
40 pub fn push_window_event(&mut self, event: WindowEvent, window_id: WindowId) {
41 self.window_events.push(Event::WindowEvent { event, window_id: RootWindowId(window_id) });
42 }
43
44 #[inline]
45 pub fn append(&mut self, other: &mut Self) {
46 self.window_events.append(&mut other.window_events);
47 }
48
49 #[inline]
50 pub fn drain(&mut self) -> Drain<'_, Event<()>> {
51 self.window_events.drain(..)
52 }
53}
54