internal static void EnsureCreated()
{
if (_current == null)
{
_current = new PopupControlService();
}
}
protected override void OnPreviewClick(ExecuteRoutedEventArgs e)
{
var popupAnchor = PopupControlService.GetParentPopupAnchor(this);
if ((popupAnchor != null) && (popupAnchor.IsPopupOpen && !StaysOpenOnClick))
{
PopupControlService.CloseAllPopups(GamePopupCloseReason.ControlClick);
}
base.OnPreviewClick(e);
}
static InfoCardService()
{
// Register event handlers
EventManager.RegisterClassHandler(
typeof(UIElement),
FindInfoCardEvent,
new FindInfoCardEventHandler(OnFindInfoCard));
EventManager.RegisterClassHandler(
typeof(ContentElement),
FindInfoCardEvent,
new FindInfoCardEventHandler(OnFindInfoCard));
PopupControlService.EnsureCreated();
}
protected override void OnLostMouseCapture(MouseEventArgs e)
{
base.OnLostMouseCapture(e);
if ((e.OriginalSource == this) && (ClickMode != ClickMode.Hover) &&
(!_flags.GetFlag(Flags.IsSpaceKeyDown)))
{
if ((IsKeyboardFocused) && (!IsInMainFocusScope(this)))
{
var popupAnchor = PopupControlService.GetParentPopupAnchor(this);
if ((popupAnchor == null) ||
(popupAnchor == this) ||
!popupAnchor.IsPopupOpen ||
!StaysOpenOnClick)
{
GameControl.BlurFocus(this, false);
}
}
IsPressed = false;
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (ClickMode == ClickMode.Hover)
{
return;
}
if (e.Key == Key.Space)
{
if (((Keyboard.Modifiers & (ModifierKeys.Control | ModifierKeys.Alt)) != ModifierKeys.Alt) &&
!IsMouseCaptured &&
(e.OriginalSource == this))
{
_flags.SetFlag(Flags.IsSpaceKeyDown, true);
IsPressed = true;
CaptureMouse();
if (ClickMode == ClickMode.Press)
{
RaiseClickEvent(new ExecuteRoutedEventArgs(ExecuteReason.Keyboard));
}
e.Handled = true;
}
}
else if ((e.Key == Key.Return) && ((bool)GetValue(KeyboardNavigation.AcceptsReturnProperty)))
{
if (e.OriginalSource == this)
{
_flags.SetFlag(Flags.IsSpaceKeyDown, false);
IsPressed = false;
if (IsMouseCaptured)
{
ReleaseMouseCapture();
}
RaiseClickEvent(new ExecuteRoutedEventArgs(ExecuteReason.Keyboard));
if ((IsKeyboardFocused) && !IsInMainFocusScope(this))
{
var popupAnchor = PopupControlService.GetParentPopupAnchor(this);
if ((popupAnchor == null) ||
(popupAnchor == this) ||
!popupAnchor.IsPopupOpen ||
!StaysOpenOnClick)
{
GameControl.BlurFocus(this, false);
}
}
e.Handled = true;
}
}
else if (_flags.GetFlag(Flags.IsSpaceKeyDown))
{
IsPressed = false;
_flags.SetFlag(Flags.IsSpaceKeyDown, false);
if (IsMouseCaptured)
{
ReleaseMouseCapture();
}
}
}
protected override void UpdateCanExecute()
{
var commandCanExecute = Command == null || Command == ApplicationCommands.NotACommand || GameCommand.CanExecuteCommandSource(this);
CanExecute = commandCanExecute && (!AutoDisableWhenPopupContentIsDisabled || (PopupControlService.IsPopupAnchorPopupEnabled(this)));
}
protected override void OnKeyDown(KeyEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
base.OnKeyDown(e);
if (!e.Handled)
{
var key = e.Key;
if (FlowDirection == FlowDirection.RightToLeft)
{
switch (key)
{
case Key.Left:
key = Key.Right;
break;
case Key.Right:
key = Key.Left;
break;
}
}
switch (key)
{
case Key.Left:
if (CurrentSelection != null && CurrentSelection.IsPopupOpen)
{
// Hide a child menu item's popup
e.Handled = true;
CurrentSelection.IsPopupOpen = false;
}
else
{
var popupAnchor = PopupControlService.GetParentPopupAnchor(this);
if (popupAnchor != null && popupAnchor.IsPopupOpen && !PopupControlService.IsTopLevel(popupAnchor))
{
// Close the parent popup
e.Handled = true;
PopupControlService.Current.ClosePopup(popupAnchor, GamePopupCloseReason.EscapeKeyPressed);
}
}
break;
case Key.Right:
if (CurrentSelection != null && !CurrentSelection.IsPopupOpen && CurrentSelection.HasPopup)
{
// Show a child menu item's popup
e.Handled = true;
CurrentSelection.IsPopupOpen = true;
// Focus the first item in a child Menu
Dispatcher.BeginInvoke(
DispatcherPriority.Send,
(Action)
(() =>
{
var menu = Keyboard.FocusedElement as GameMenu;
if (menu != null)
{
menu.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}
}));
}
break;
}
}
}
