private void CoreWindow_KeyDown(CoreWindow sender, Windows.UI.Core.KeyEventArgs args)
{
if (IsInTransitionState)
{
return;
}
if (NavigateUsingKeyboard(args, this, Orientation))
{
return;
}
string gestureKey = MapInputToGestureKey(args.VirtualKey);
if (gestureKey == null)
{
return;
}
if (MenuItemInputGestureCache.ContainsKey(gestureKey))
{
var cachedMenuItem = MenuItemInputGestureCache[gestureKey];
if (cachedMenuItem is MenuFlyoutItem)
{
var menuFlyoutItem = (MenuFlyoutItem)cachedMenuItem;
menuFlyoutItem.Command?.Execute(menuFlyoutItem.CommandParameter);
}
}
}
private void Dispatcher_AcceleratorKeyActivated(CoreDispatcher sender, AcceleratorKeyEventArgs args)
{
_lastFocusElement = FocusManager.GetFocusedElement() as Control;
if (args.VirtualKey == VirtualKey.Menu && !args.KeyStatus.WasKeyDown)
{
_altHandled = false;
}
else if (args.KeyStatus.IsMenuKeyDown && args.KeyStatus.IsKeyReleased && !_altHandled)
{
_altHandled = true;
string gestureKey = MapInputToGestureKey(args.VirtualKey);
if (gestureKey == null)
{
return;
}
if (MenuItemInputGestureCache.ContainsKey(gestureKey))
{
var cachedMenuItem = MenuItemInputGestureCache[gestureKey];
if (cachedMenuItem is MenuItem)
{
var menuItem = (MenuItem)cachedMenuItem;
menuItem.ShowMenu();
menuItem.Focus(FocusState.Keyboard);
}
}
}
else if (args.VirtualKey == VirtualKey.Menu && args.KeyStatus.IsKeyReleased && !_altHandled)
{
_altHandled = true;
if (!IsOpened)
{
if (_isLostFocus)
{
LostFocus -= Menu_LostFocus;
Focus(FocusState.Programmatic);
_lastFocusElementBeforeMenu = _lastFocusElement;
_isLostFocus = false;
if (AllowTooltip)
{
ShowSubItemToolTips();
}
LostFocus += Menu_LostFocus;
}
else
{
_lastFocusElementBeforeMenu?.Focus(FocusState.Keyboard);
}
}
}
}
private static void InputGestureTextChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e)
{
var element = sender as FrameworkElement;
var inputGestureValue = element?.GetValue(InputGestureTextProperty).ToString();
if (string.IsNullOrEmpty(inputGestureValue))
{
return;
}
inputGestureValue = inputGestureValue.ToUpper();
if (MenuItemInputGestureCache.ContainsKey(inputGestureValue))
{
MenuItemInputGestureCache[inputGestureValue] = element;
return;
}
MenuItemInputGestureCache.Add(inputGestureValue.ToUpper(), element);
}
private static void RemoveElementFromCache(FrameworkElement descendant)
{
var value = descendant.GetValue(InputGestureTextProperty);
if (value == null)
{
return;
}
var inputGestureText = value.ToString().ToUpper();
if (!MenuItemInputGestureCache.ContainsKey(inputGestureText))
{
return;
}
var cachedMenuItem = MenuItemInputGestureCache[inputGestureText];
if (cachedMenuItem == descendant)
{
MenuItemInputGestureCache.Remove(inputGestureText);
}
}
private void Dispatcher_AcceleratorKeyActivated(CoreDispatcher sender, AcceleratorKeyEventArgs args)
{
if (Items.Count == 0)
{
return;
}
if (ControlHelpers.IsXamlRootAvailable && XamlRoot != null)
{
_lastFocusElement = FocusManager.GetFocusedElement(XamlRoot) as Control;
}
else
{
_lastFocusElement = FocusManager.GetFocusedElement() as Control;
}
if (args.KeyStatus.ScanCode != AltScanCode)
{
_onlyAltCharacterPressed = false;
}
if (args.VirtualKey == VirtualKey.Menu)
{
if (!IsOpened)
{
if (_isLostFocus)
{
if (_onlyAltCharacterPressed && args.KeyStatus.IsKeyReleased)
{
((MenuItem)Items[0]).Focus(FocusState.Programmatic);
if (!(_lastFocusElement is MenuItem))
{
_lastFocusElementBeforeMenu = _lastFocusElement;
}
}
if (AllowTooltip)
{
ShowMenuItemsToolTips();
}
else
{
UnderlineMenuItems();
}
if (args.KeyStatus.IsKeyReleased)
{
_isLostFocus = false;
}
}
else if (args.KeyStatus.IsKeyReleased)
{
HideToolTip();
_lastFocusElementBeforeMenu?.Focus(FocusState.Keyboard);
}
}
}
else if ((args.KeyStatus.IsMenuKeyDown || !_isLostFocus) && args.KeyStatus.IsKeyReleased)
{
var gestureKey = MapInputToGestureKey(args.VirtualKey, !_isLostFocus);
if (gestureKey == null)
{
return;
}
if (MenuItemInputGestureCache.ContainsKey(gestureKey))
{
var cachedMenuItem = MenuItemInputGestureCache[gestureKey];
if (cachedMenuItem is MenuItem)
{
var menuItem = (MenuItem)cachedMenuItem;
menuItem.ShowMenu();
menuItem.Focus(FocusState.Keyboard);
}
}
}
if (args.KeyStatus.IsKeyReleased && args.EventType == CoreAcceleratorKeyEventType.KeyUp)
{
_onlyAltCharacterPressed = true;
_isLostFocus = true;
HideToolTip();
}
}
private void Dispatcher_AcceleratorKeyActivated(CoreDispatcher sender, AcceleratorKeyEventArgs args)
{
if (Items.Count == 0)
{
return;
}
_lastFocusElement = FocusManager.GetFocusedElement() as Control;
if (args.VirtualKey == VirtualKey.Menu)
{
if (!IsOpened)
{
if (_isLostFocus)
{
((MenuItem)Items[0]).Focus(FocusState.Programmatic);
if (!(_lastFocusElement is MenuItem))
{
_lastFocusElementBeforeMenu = _lastFocusElement;
}
if (AllowTooltip)
{
ShowMenuItemsToolTips();
}
else
{
UnderlineMenuItems();
}
if (args.KeyStatus.IsKeyReleased)
{
_isLostFocus = false;
}
}
else if (!_isLostFocus && args.KeyStatus.IsKeyReleased)
{
if (AllowTooltip)
{
HideMenuItemsTooltips();
}
else
{
RemoveUnderlineMenuItems();
}
_lastFocusElementBeforeMenu?.Focus(FocusState.Keyboard);
}
}
}
else if ((args.KeyStatus.IsMenuKeyDown || !_isLostFocus) && args.KeyStatus.IsKeyReleased)
{
var gestureKey = MapInputToGestureKey(args.VirtualKey, !_isLostFocus);
if (gestureKey == null)
{
return;
}
if (MenuItemInputGestureCache.ContainsKey(gestureKey))
{
var cachedMenuItem = MenuItemInputGestureCache[gestureKey];
if (cachedMenuItem is MenuItem)
{
var menuItem = (MenuItem)cachedMenuItem;
menuItem.ShowMenu();
menuItem.Focus(FocusState.Keyboard);
}
}
}
}
