Closing popups requires two Esc key presses

[tokyo4j]

In KDE Plasma or GNOME, we can press Escape key to close a popup menu in applications like featherpad and gedit. However, in cosmic-comp, it requires two key presses of Escape key. I think the cause is that cosmic-comp consumes the first press of Escape key to finish popup grab and the applications cannot see the key press:

cosmic-comp/src/input/mod.rs

Lines 1762 to 1781 in ef14b7e

	// cancel grabs
	if is_grabbed
	&& handle.modified_sym() == Keysym::Escape
	&& event.state() == KeyState::Pressed
	&& !modifiers.alt
	&& !modifiers.ctrl
	&& !modifiers.logo
	&& !modifiers.shift
	{
	seat.supressed_keys().add(&handle, None);
	return FilterResult::Intercept(Some((
	Action::Private(PrivateAction::Escape),
	shortcuts::Binding {
	modifiers: shortcuts::Modifiers::default(),
	keycode: None,
	key: Some(Keysym::Escape),
	description: None,
	},
	)));
	}

[tokyo4j]

So I think the compositor can either:

• Send the first Escape key press to clients
• Or send xdg_popup.popup_done event on the first Escape key press