Windows cursor grabbing is bugged #22750
Description
Bevy version and features
0.18 main branch
[Optional] Relevant system information
Windows 11
What you did
Ran the attached code, hit the windows key to change focus, tried to move the cursor out of the window.
What went wrong
If the debug print is showing that the cursor is not grabbed I expect the mouse to not act confined. It is not letting my mouse leave the window even though its not grabbed. I minimized the code for you.
Additional information
use std::time::Duration;
use bevy::{
prelude::*,
window::{CursorGrabMode, CursorOptions, PrimaryWindow, WindowFocused},
};
fn main() {
App::new()
.add_plugins(DefaultPlugins.set(WindowPlugin {
primary_window: Some(Window { ..default() }),
..default()
}))
.add_systems(Update, (print_cursor, handle_focus_change))
.run();
}
fn print_cursor(
primary_cursor_options: Single<&mut CursorOptions, With<PrimaryWindow>>,
mut time_since_last_print: Local<Duration>,
time: Res<Time>,
) {
*time_since_last_print += time.delta();
if *time_since_last_print < Duration::from_secs(5) {
return;
}
println!("grabbed: {:?}", primary_cursor_options.grab_mode);
*time_since_last_print = Duration::ZERO;
}
fn handle_focus_change(
mut focus_events: MessageReader<WindowFocused>,
mut primary_cursor_options: Single<&mut CursorOptions, With<PrimaryWindow>>,
) {
for event in focus_events.read() {
if event.focused {
println!("gained focus");
primary_cursor_options.grab_mode = CursorGrabMode::Confined;
} else {
println!("lost focus");
primary_cursor_options.grab_mode = CursorGrabMode::None;
}
}
}