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Handle scale factor change on web-sys backend (#1690)

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* Change web backend `event_handler` to without  'static lifetime

* Refactor web runner and fix ControlFlow::Exit not being sticky

* Impl. scaling change event for web-sys backend

* Improve `dpi` docs regarding the web backend

* Add changes to changelog

* Update features.md
This commit is contained in:
alvinhochun 2020-08-30 21:15:44 +08:00 • committed by GitHub
parent a2db4c0a32
commit 658a9a4ea8
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12 changed files with 302 additions and 44 deletions
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7
src/platform_impl/web/event_loop/window_target.rs
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@ -29,8 +29,12 @@ impl<T> WindowTarget<T> {
Proxy::new(self.runner.clone())
}
pub fn run(&self, event_handler: Box<dyn FnMut(Event<'static, T>, &mut ControlFlow)>) {
pub fn run(&self, event_handler: Box<dyn FnMut(Event<'_, T>, &mut ControlFlow)>) {
self.runner.set_listener(event_handler);
let runner = self.runner.clone();
self.runner.set_on_scale_change(move |arg| {
runner.handle_scale_changed(arg.old_scale, arg.new_scale)
});
}
pub fn generate_id(&self) -> window::Id {
@ -40,6 +44,7 @@ impl<T> WindowTarget<T> {
pub fn register(&self, canvas: &mut backend::Canvas, id: window::Id) {
let runner = self.runner.clone();
canvas.set_attribute("data-raw-handle", &id.0.to_string());
runner.add_canvas(WindowId(id), canvas.raw().clone());
canvas.on_blur(move || {
runner.send_event(Event::WindowEvent {