public static Image ToImage(this UIElement element)
{
return(new Image()
{
Source = UIExtensions.ToImageSource(element)
});
}
private static void OnAllowEnhancedDropChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
{
UIElement uiElement1 = (UIElement)obj;
if (uiElement1 == null)
{
return;
}
UIElement uiElement2 = (UIElement)UIExtensions.GetParent((DependencyObject)uiElement1);
if (uiElement2 == null)
{
return;
}
if ((bool)args.OldValue)
{
uiElement2.RemoveHandler(UIElement.DragEnterEvent, (Delegate) new DragEventHandler(Advent.Common.UI.DragDrop.ParentDragEnter));
uiElement1.RemoveHandler(UIElement.DragOverEvent, (Delegate) new DragEventHandler(Advent.Common.UI.DragDrop.ElementDragOver));
uiElement1.PreviewDragLeave -= new DragEventHandler(Advent.Common.UI.DragDrop.ElementPreviewDragLeave);
uiElement1.PreviewDrop -= new DragEventHandler(Advent.Common.UI.DragDrop.ElementPreviewDrop);
uiElement1.PreviewQueryContinueDrag -= new QueryContinueDragEventHandler(Advent.Common.UI.DragDrop.ElementPreviewQueryContinueDrag);
Advent.Common.UI.DragDrop.dragElements.Remove(uiElement1);
}
if (!(bool)args.NewValue)
{
return;
}
uiElement2.AddHandler(UIElement.DragEnterEvent, (Delegate) new DragEventHandler(Advent.Common.UI.DragDrop.ParentDragEnter), true);
uiElement1.AddHandler(UIElement.DragOverEvent, (Delegate) new DragEventHandler(Advent.Common.UI.DragDrop.ElementDragOver), true);
uiElement1.PreviewDragLeave += new DragEventHandler(Advent.Common.UI.DragDrop.ElementPreviewDragLeave);
uiElement1.PreviewDrop += new DragEventHandler(Advent.Common.UI.DragDrop.ElementPreviewDrop);
uiElement1.PreviewQueryContinueDrag += new QueryContinueDragEventHandler(Advent.Common.UI.DragDrop.ElementPreviewQueryContinueDrag);
Advent.Common.UI.DragDrop.dragElements.Add(uiElement1);
}
public WindowPreview(FrameworkElement destination, IntPtr sourceHandle)
{
this.sourceHandle = sourceHandle;
this.window = UIExtensions.GetAncestor <Window>((DependencyObject)destination);
Marshal.ThrowExceptionForHR(Advent.Common.Interop.NativeMethods.DwmRegisterThumbnail(new WindowInteropHelper(this.window).Handle, sourceHandle, ref this.thumbnailHandle));
this.Destination = destination;
this.opacity = 1.0;
this.clientAreaOnly = false;
this.isVisible = false;
destination.LayoutUpdated += new EventHandler(this.Destination_LayoutUpdated);
}
public static bool IsDescendantOf(this DependencyObject child, DependencyObject ancestor)
{
DependencyObject parent = VisualTreeHelper.GetParent(child);
if (parent == null)
{
return(false);
}
if (parent == ancestor)
{
return(true);
}
else
{
return(UIExtensions.IsDescendantOf(parent, ancestor));
}
}
public static T GetAncestor <T>(this DependencyObject child) where T : DependencyObject
{
DependencyObject parent = VisualTreeHelper.GetParent(child);
if (parent == null)
{
return(default(T));
}
T obj = parent as T;
if ((object)obj != null)
{
return(obj);
}
else
{
return(UIExtensions.GetAncestor <T>(parent));
}
}
private static void ParentDragEnter(object sender, DragEventArgs e)
{
if (e.OriginalSource != Advent.Common.UI.DragDrop.dragEnterOriginalSource)
{
Advent.Common.UI.DragDrop.dragEnterOriginalSource = e.OriginalSource;
Advent.Common.UI.DragDrop.isDragEnterHandled = false;
}
if (Advent.Common.UI.DragDrop.isDragEnterHandled)
{
return;
}
UIElement uiElement1 = (UIElement)null;
foreach (UIElement uiElement2 in Advent.Common.UI.DragDrop.dragElements)
{
if (uiElement2.IsAncestorOf((DependencyObject)e.OriginalSource) && VisualTreeHelper.GetParent((DependencyObject)uiElement2) == sender)
{
uiElement1 = uiElement2;
break;
}
}
if (uiElement1 == null)
{
return;
}
Window ancestor = UIExtensions.GetAncestor <Window>((DependencyObject)uiElement1);
string descriptionMessage = Advent.Common.UI.DragDrop.GetDropDescription((DependencyObject)uiElement1);
if (descriptionMessage != null)
{
descriptionMessage = descriptionMessage.Replace("{0}", "%1");
}
uiElement1.SetValue(Advent.Common.UI.DragDrop.IsDropOverPropertyKey, (object)true);
DataObjectExtensions.DragEnter(ancestor, e.Data, Mouse.GetPosition((IInputElement)ancestor), e.Effects, descriptionMessage, Advent.Common.UI.DragDrop.GetDropDescriptionInsert((DependencyObject)uiElement1));
Advent.Common.UI.DragDrop.isDragEnterHandled = true;
}
private static void ElementDragOver(object sender, DragEventArgs e)
{
DataObjectExtensions.DragOver(Mouse.GetPosition((IInputElement)UIExtensions.GetAncestor <Window>((DependencyObject)sender)), e.Effects);
}
private static void ElementPreviewDrop(object sender, DragEventArgs e)
{
((DependencyObject)sender).SetValue(Advent.Common.UI.DragDrop.IsDropOverPropertyKey, (object)false);
DataObjectExtensions.Drop(e.Data, Mouse.GetPosition((IInputElement)UIExtensions.GetAncestor <Window>((DependencyObject)sender)), e.Effects);
Advent.Common.UI.DragDrop.dragEnterOriginalSource = (object)null;
}
