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Fix initial paint of web app (#5633)

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* Broke in https://github.com/emilk/egui/pull/5631 (for _some_ apps)
This commit is contained in:
Emil Ernerfeldt
2025-01-23 13:47:52 +01:00
committed by GitHub
parent edbf4e8998
commit bc5f908b80
2 changed files with 13 additions and 8 deletions
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4
crates/eframe/src/web/events.rs
View File

@@ -890,7 +890,7 @@ impl ResizeObserverContext {
let runner_ref = runner_ref.clone();
move |entries: js_sys::Array| {
if DEBUG_RESIZE {
// log::info!("ResizeObserverContext callback");
log::info!("ResizeObserverContext callback");
}
// Only call the wrapped closure if the egui code has not panicked
if let Some(mut runner_lock) = runner_ref.try_lock() {
@@ -919,6 +919,8 @@ impl ResizeObserverContext {
if let Err(err) = runner_ref.request_animation_frame() {
log::error!("{}", super::string_from_js_value(&err));
};
} else {
log::warn!("ResizeObserverContext callback: failed to lock runner");
}
}
}) as Box<dyn FnMut(js_sys::Array)>);

17
crates/eframe/src/web/web_runner.rs
View File

@@ -71,24 +71,27 @@ impl WebRunner {
canvas.style().set_property("outline", "none")?;
}
let text_agent = TextAgent::attach(self)?;
{
// First set up the app runner:
let text_agent = TextAgent::attach(self)?;
let app_runner =
AppRunner::new(canvas.clone(), web_options, app_creator, text_agent).await?;
self.app_runner.replace(Some(app_runner));
}
{
let resize_observer = events::ResizeObserverContext::new(self)?;
// This will (eventually) result in a `request_animation_frame` to start the render loop.
// Properly size the canvas. Will also call `self.request_animation_frame()` (eventually)
resize_observer.observe(&canvas);
self.resize_observer.replace(Some(resize_observer));
}
{
let app_runner = AppRunner::new(canvas, web_options, app_creator, text_agent).await?;
self.app_runner.replace(Some(app_runner));
}
events::install_event_handlers(self)?;
log::info!("event handlers installed.");
Ok(())
}