Files
dioxus/packages/desktop/src/waker.rs
T

35 lines
1.1 KiB
Rust

use crate::desktop_context::{EventData, UserWindowEvent};
use futures_util::task::ArcWake;
use std::sync::Arc;
use wry::application::{event_loop::EventLoopProxy, window::WindowId};
/// Create a waker that will send a poll event to the event loop.
///
/// This lets the VirtualDom "come up for air" and process events while the main thread is blocked by the WebView.
///
/// All other IO lives in the Tokio runtime,
pub fn tao_waker(proxy: &EventLoopProxy<UserWindowEvent>, id: WindowId) -> std::task::Waker {
struct DomHandle {
proxy: EventLoopProxy<UserWindowEvent>,
id: WindowId,
}
// this should be implemented by most platforms, but ios is missing this until
// https://github.com/tauri-apps/wry/issues/830 is resolved
unsafe impl Send for DomHandle {}
unsafe impl Sync for DomHandle {}
impl ArcWake for DomHandle {
fn wake_by_ref(arc_self: &Arc<Self>) {
_ = arc_self
.proxy
.send_event(UserWindowEvent(EventData::Poll, arc_self.id));
}
}
futures_util::task::waker(Arc::new(DomHandle {
id,
proxy: proxy.clone(),
}))
}