|
public static GetRibbon ( |
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| element | ||
| 리턴 | Ribbon | |
private static void OnIsOpenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RibbonContextMenu contextMenu = (RibbonContextMenu)d;
if (!(bool)(e.NewValue))
{
if (!contextMenu._ignoreDismissPopupsOnNextClose)
{
UIElement dismissPopupSource = contextMenu.GetDismissPopupSource();
if (CanRaiseDismissPopups(dismissPopupSource))
{
// Raise DismissPopup on owner if can raise and if
// was not asked to ignore.
dismissPopupSource.RaiseEvent(new RibbonDismissPopupEventArgs(RibbonDismissPopupMode.Always));
((Ribbon)(RibbonControlService.GetRibbon(dismissPopupSource))).RestoreFocusOnContextMenuClose();
}
}
else
{
contextMenu.RestoreFocusToRibbon();
contextMenu._ignoreDismissPopupsOnNextClose = false;
}
}
else
{
contextMenu._ignoreDismissPopupsOnNextClose = false;
}
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
DependencyObject d = value as DependencyObject;
if (d != null)
{
Ribbon ribbon = RibbonControlService.GetRibbon(d);
if (ribbon != null &&
!ribbon.ShowQuickAccessToolBarOnTop)
{
if (_mode == ConverterMode.Header)
{
return(ShowQATAboveText);
}
else
{
return(RibbonCommands.ShowQuickAccessToolBarAboveRibbonCommand);
}
}
}
if (_mode == ConverterMode.Header)
{
return(ShowQATBelowText);
}
else
{
return(RibbonCommands.ShowQuickAccessToolBarBelowRibbonCommand);
}
}
/// <summary>
/// Tries to restore focus to the first focusable element across
/// the ancestor chain of ContextMenuOriginalSource. Should
/// be called only when Ribbon is supposed to retain the focus.
/// </summary>
private void RestoreFocusToRibbon()
{
DependencyObject current = GetDismissPopupSource();
if (current == null)
{
return;
}
Ribbon ribbon = RibbonControlService.GetRibbon(current);
if (ribbon == null)
{
return;
}
while (current != null)
{
UIElement uie = current as UIElement;
if (uie != null && uie.Focusable)
{
uie.Dispatcher.BeginInvoke(
(Action) delegate()
{
if (!ribbon.IsKeyboardFocusWithin)
{
uie.Focus();
}
},
DispatcherPriority.Input,
null);
break;
}
current = TreeHelper.GetParent(current);
}
}
/// <summary>
/// Property changed callback for tooltip PlacementTarget property.
/// </summary>
private static void OnPlacementTargetPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
RibbonToolTip ribbonToolTip = (RibbonToolTip)d;
UIElement target = e.NewValue as UIElement;
if (target == null)
{
ribbonToolTip.Ribbon = null;
}
else
{
ribbonToolTip.Ribbon = RibbonControlService.GetRibbon(target);
}
}
private void TransferPseudoInheritedProperties()
{
if (_templateRoot != null)
{
// Ribbon is an inherited property. In non-MVVM scenarios where
// controls are directly added under RibbonGroup in XAML, RibbonGroup
// is the logical parent of those controls and they get the value
// of RibbonParent set from their logical parent. When a RibbonGroup
// get collapsed and its template changes, due to a bug in framework
// the inheritance value of those controls is lost during visual tree
// change and never again gets updated. The workaround is to set the
// local value on those controls from RibbonContentPresenter which
// would be their visual parent. This works because Ribbon property is
// readonly.
RibbonControlService.SetRibbon(_templateRoot, RibbonControlService.GetRibbon(this));
RibbonHelper.TransferPseudoInheritedProperties(this, _templateRoot);
}
}
private static bool CanRaiseDismissPopups(UIElement dismissPopupSource)
{
// Contextmenu raises DismissPopup event on the source only
// if it is in a popup and is in a Ribbon.
if (dismissPopupSource == null ||
RibbonControlService.GetRibbon(dismissPopupSource) == null)
{
return(false);
}
Popup ancestorPopup = TreeHelper.FindAncestor(dismissPopupSource, delegate(DependencyObject element) { return(element is Popup); }) as Popup;
if (ancestorPopup == null ||
!ancestorPopup.IsOpen)
{
return(false);
}
return(true);
}
/// <summary>
/// Helper method which scrolls item at given index into view.
/// Can be used as a dispatcher operation.
/// </summary>
/// <param name="arg"></param>
/// <returns></returns>
private object ScrollContainerIntoView(object arg)
{
int index = (int)arg;
FrameworkElement element = ItemContainerGenerator.ContainerFromIndex(index) as FrameworkElement;
if (element != null)
{
element.BringIntoView();
// If there is a margin on TabHeader on the end, BringIntoView call
// may not scroll to the end. Explicitly scroll to end in such cases.
IScrollInfo scrollInfo = InternalItemsHost as IScrollInfo;
if (scrollInfo != null)
{
ScrollViewer scrollViewer = scrollInfo.ScrollOwner;
if (scrollViewer != null)
{
Ribbon ribbon = RibbonControlService.GetRibbon(this);
if (ribbon != null)
{
int displayIndex = ribbon.GetTabDisplayIndexForIndex(index);
if (displayIndex == 0)
{
// If this tab header is the first tab header displayed
// then scroll to the left end.
scrollViewer.ScrollToLeftEnd();
}
else if (ribbon.GetTabIndexForDisplayIndex(displayIndex + 1) < 0)
{
// If this tab header is the last tab header displayed
// then scroll to the right end.
scrollViewer.ScrollToRightEnd();
}
}
}
}
}
return(null);
}
private UIElement GetDismissPopupSource()
{
UIElement placementTarget = PlacementTarget;
if (placementTarget == null)
{
return(null);
}
Ribbon ribbon = RibbonControlService.GetRibbon(placementTarget);
if (ribbon == null)
{
return(null);
}
// The original source for corresponding ContextMenuOpening will
// be the original source for DismissPopup event.
UIElement returnValue = ribbon.ContextMenuOriginalSource;
if (returnValue == null)
{
returnValue = placementTarget;
}
return(returnValue);
}
