winit-sonoma-fix/examples/window_run_return.rs

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Rust
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use winit::{
event::{Event, WindowEvent},
event_loop::{ControlFlow, EventLoop},
platform::desktop::EventLoopExtDesktop,
window::WindowBuilder,
};
Event Loop 2.0 API and Windows implementation (#638) * Rename EventsLoop and associated types to EventLoop * Rename WindowEvent::Refresh to WindowEvent::Redraw * Remove second thread from win32 backend * Update run_forever to hijack thread * Replace windows Mutex with parking_lot Mutex * Implement new ControlFlow and associated events * Add StartCause::Init support, timer example * Add ability to send custom user events * Fully invert windows control flow so win32 calls into winit's callback * Add request_redraw * Rename platform to platform_impl * Rename os to platform, add Ext trait postfixes * Add platform::desktop module with EventLoopExt::run_return * Re-organize into module structure * Improve documentation * Small changes to examples * Improve docs for run and run_return * Change instances of "events_loop" to "event_loop" * Rename MonitorId to MonitorHandle * Add CHANGELOG entry * Improve WaitUntil timer precision * When SendEvent is called during event closure, buffer events * Fix resize lag when waiting in some situations * Update send test and errors that broke some examples/APIs * Improve clarity/fix typos in docs * Fix unreachable panic after setting ControlFlow to Poll during some RedrawRequested events. * Fix crash when running in release mode * Remove crossbeam dependency and make drop events work again * Remove serde implementations from ControlFlow * Fix 1.24.1 build * Fix freeze when setting decorations * Replace &EventLoop in callback with &EventLoopWindowTarget * Document and implement Debug for EventLoopWindowTarget * Fix some deadlocks that could occur when changing window state * Fix thread executor not executing closure when called from non-loop thread * Fix buffered events not getting dispatched * Fix crash with runner refcell not getting dropped * Address review feedback * Fix CHANGELOG typo * Catch panics in user callback
2019-02-06 02:30:33 +11:00
fn main() {
let mut event_loop = EventLoop::new();
let window = WindowBuilder::new()
.with_title("A fantastic window!")
.build(&event_loop)
.unwrap();
println!("Close the window to continue.");
event_loop.run_return(|event, _, control_flow| {
match event {
Event::WindowEvent {
event: WindowEvent::CloseRequested,
..
} => *control_flow = ControlFlow::Exit,
_ => *control_flow = ControlFlow::Wait,
}
});
drop(window);
let _window_2 = WindowBuilder::new()
.with_title("A second, fantasticer window!")
.build(&event_loop)
.unwrap();
println!("Wa ha ha! You thought that closing the window would finish this?!");
event_loop.run_return(|event, _, control_flow| {
match event {
Event::WindowEvent {
event: WindowEvent::CloseRequested,
..
} => *control_flow = ControlFlow::Exit,
_ => *control_flow = ControlFlow::Wait,
}
});
println!("Okay we're done now for real.");
}