Fix Cursor Unlock on Web

A tiny plugin that fixes Bevy not reporting when the cursor is unlocked on web

Usage

Just add the plugin, that's it:

use bevy::prelude::*;
use bevy_fix_cursor_unlock_web::prelude::*;

App::new()
  .add_plugins(DefaultPlugins)
  .add_plugins(FixPointerUnlockPlugin);

Now, Window::cursor_options::grab_mode is automatically set to CursorGrabMode::None for you when unlocking the cursor on web. This fixes bevyengine/bevy#8949

If you want to detect when a cursor was force freed, e.g. when the user presses escape, you can observe the ForceUnlockCursor event. Note that Bevy does not forward the "Escape" key press in this case.

Compatibility

bevy	bevy_fix_cursor_unlock_web
0.18	0.3
0.17	0.2
0.16	0.1