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Implement windows focus key press/release on Windows (#1307)

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* X11: Sync key press/release with window focus

* When a window loses focus, key release events are issued for all pressed keys
* When a window gains focus, key press events are issued for all pressed keys
* Adds `is_synthetic` field to `WindowEvent` variant `KeyboardInput`
  to indicate that these events are synthetic.
* Adds `is_synthetic: false` to `WindowEvent::KeyboardInput` events issued
  on all other platforms

* Implement windows focus key press/release on Windows

* Docs

Co-authored-by: Murarth <murarth@gmail.com>
This commit is contained in:
Osspial 2019-12-27 16:26:23 -05:00 • committed by GitHub
parent 5d99316c96
commit cc206d31b7
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 57 additions and 3 deletions
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44
src/platform_impl/windows/event_loop.rs
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@ -1421,7 +1421,27 @@ unsafe extern "system" fn public_window_callback<T>(
}
winuser::WM_SETFOCUS => {
use crate::event::WindowEvent::Focused;
use crate::event::{ElementState::Released, WindowEvent::Focused};
for windows_keycode in event::get_pressed_keys() {
let scancode =
winuser::MapVirtualKeyA(windows_keycode as _, winuser::MAPVK_VK_TO_VSC);
let virtual_keycode = event::vkey_to_winit_vkey(windows_keycode);
subclass_input.send_event(Event::WindowEvent {
window_id: RootWindowId(WindowId(window)),
event: WindowEvent::KeyboardInput {
device_id: DEVICE_ID,
input: KeyboardInput {
scancode,
virtual_keycode,
state: Released,
modifiers: event::get_key_mods(),
},
is_synthetic: true,
},
})
}
subclass_input.send_event(Event::WindowEvent {
window_id: RootWindowId(WindowId(window)),
event: Focused(true),
@ -1431,7 +1451,27 @@ unsafe extern "system" fn public_window_callback<T>(
}
winuser::WM_KILLFOCUS => {
use crate::event::WindowEvent::Focused;
use crate::event::{ElementState::Released, WindowEvent::Focused};
for windows_keycode in event::get_pressed_keys() {
let scancode =
winuser::MapVirtualKeyA(windows_keycode as _, winuser::MAPVK_VK_TO_VSC);
let virtual_keycode = event::vkey_to_winit_vkey(windows_keycode);
subclass_input.send_event(Event::WindowEvent {
window_id: RootWindowId(WindowId(window)),
event: WindowEvent::KeyboardInput {
device_id: DEVICE_ID,
input: KeyboardInput {
scancode,
virtual_keycode,
state: Released,
modifiers: event::get_key_mods(),
},
is_synthetic: true,
},
})
}
subclass_input.send_event(Event::WindowEvent {
window_id: RootWindowId(WindowId(window)),
event: Focused(false),