public static boolean dispatchKeyType(Event e, Handler<KeyEvent> handler) {
final KeyEvent event = EventTranslator.toKeyEvent(e);
if (e.getCharCode() == 0) return true;
if (e.getCharCode() == '\n') return true;
if (e.getCharCode() == '\r') return true;
if (event.has(ModifierKey.META) || event.has(ModifierKey.ALT) || event.has(ModifierKey.CONTROL))
return true;
handler.handle(event);
return !event.isConsumed();
}
@Override
public void onBrowserEvent(Event event) {
if (cancelled) {
return;
}
super.onBrowserEvent(event);
assertEquals(KEY_CODE, event.getKeyCode());
// shouldn't throw:
event.getCharCode();
}
private static KeyEvent toKeyEvent(Event e) {
Key key = KeyCodeMapper.getKey(e.getKeyCode());
Set<ModifierKey> modifiers = new HashSet<>();
if (e.getCtrlKey()) {
modifiers.add(ModifierKey.CONTROL);
}
if (e.getAltKey()) {
modifiers.add(ModifierKey.ALT);
}
if (e.getShiftKey()) {
modifiers.add(ModifierKey.SHIFT);
}
if (e.getMetaKey()) {
modifiers.add(ModifierKey.META);
}
return new KeyEvent(key, (char) e.getCharCode(), modifiers);
}