private static void TabControl_PreviewMouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
TabControl sourceTabControl = (TabControl)sender;
sourceTabControl.PreviewMouseLeftButtonUp -= TabTearOffBehavior.TabControl_PreviewMouseLeftButtonUp;
sourceTabControl.PreviewMouseMove -= TabTearOffBehavior.TabControl_PreviewMouseMove;
sourceTabControl.MouseLeave -= TabTearOffBehavior.TabControl_MouseLeaveOrLostCapture;
sourceTabControl.LostMouseCapture -= TabTearOffBehavior.TabControl_MouseLeaveOrLostCapture;
if (sourceTabControl.IsMouseCaptured)
{
TabItem tabItem = TabTearOffBehavior._activeTabItem;
Point dragWindowLocation = new Point
{
X = TabTearOffBehavior._dragWindow.Left,
Y = TabTearOffBehavior._dragWindow.Top
};
sourceTabControl.ReleaseMouseCapture();
if (TabTearOffBehavior._adorner != null)
{
TabTearOffBehavior._adorner.Detach();
TabTearOffBehavior._adorner = null;
}
TabTearOffBehavior._dragWindow.Close();
TabTearOffBehavior._dragWindow = null;
TabTearOffBehavior._activeTabItem = null;
object item = sourceTabControl.ItemContainerGenerator.ItemFromContainer(tabItem);
int sourceIndex = sourceTabControl.ItemContainerGenerator.IndexFromContainer(tabItem);
Window dropWindow = TabTearOffBehavior.GetWindowMouseIsOver(e);
TabControl targetTabControl;
Panel targetPanel;
ITabTearOffHandler targetHandler;
if (dropWindow != null &&
TabTearOffBehavior.IsMouseInDropLocation(e, targetTabControl = TabTearOffBehavior.FindTargetTabControl(dropWindow, out targetHandler), targetPanel = ControlMethods.GetPanel(targetTabControl)))
{
int insertionIndex = TabTearOffBehavior.DetermineInsertionIndex(targetTabControl, e, targetPanel.GetOrientation());
if (!object.ReferenceEquals(sourceTabControl, targetTabControl))
{
if (targetHandler.AllowTargetedDrop(item, sourceTabControl, sourceIndex, targetTabControl, insertionIndex))
{
targetHandler.HandleTargetedDrop(item, sourceTabControl, sourceIndex, targetTabControl, insertionIndex);
}
}
else if (sourceTabControl.Items.Count != 1 &&
insertionIndex != sourceIndex &&
targetHandler.AllowReorder(item, sourceTabControl, sourceIndex, insertionIndex))
{
targetHandler.HandleReorder(item, sourceTabControl, sourceIndex, insertionIndex);
}
}
else
{
ITabTearOffHandler sourceHandler = TabTearOffBehavior.GetHandler(sourceTabControl);
if (sourceHandler.AllowTargetlessDrop(item, sourceTabControl, sourceIndex, dragWindowLocation))
{
sourceHandler.HandleTargetlessDrop(item, sourceTabControl, sourceIndex, dragWindowLocation);
}
}
}
e.Handled = true;
}
private static TabControl FindTargetTabControl(Window dropWindow, out ITabTearOffHandler handler)
{
handler = null;
foreach (TabControl tabControl in dropWindow.GetVisualTreeDescendents <TabControl>())
{
if ((handler = TabTearOffBehavior.GetHandler(tabControl)) != null)
{
return(tabControl);
}
}
return(null);
}
protected override void OnRender(DrawingContext drawingContext)
{
int insertionIndex = TabTearOffBehavior.DetermineInsertionIndex(this.AdornedElement, this._mouseEventArgs, this._orientation);
ITabTearOffHandler handler = TabTearOffBehavior.GetHandler(this.AdornedElement);
TabControl activeTabControl = TabTearOffBehavior._activeTabItem == null ? null : (TabControl)ItemsControl.ItemsControlFromItemContainer(TabTearOffBehavior._activeTabItem);
if (activeTabControl == null ||
!this.AdornedElement.Equals(activeTabControl) && !handler.AllowTargetedDrop(activeTabControl.ItemContainerGenerator.ItemFromContainer(TabTearOffBehavior._activeTabItem), activeTabControl, activeTabControl.ItemContainerGenerator.IndexFromContainer(TabTearOffBehavior._activeTabItem), this.AdornedElement, insertionIndex) ||
this.AdornedElement.Equals(activeTabControl) && !handler.AllowReorder(activeTabControl.ItemContainerGenerator.ItemFromContainer(TabTearOffBehavior._activeTabItem), activeTabControl, activeTabControl.ItemContainerGenerator.IndexFromContainer(TabTearOffBehavior._activeTabItem), insertionIndex))
{
return;
}
int index = Math.Min(insertionIndex, this.AdornedElement.Items.Count - 1);
UIElement container;
if ((container = (UIElement)this.AdornedElement.ItemContainerGenerator.ContainerFromIndex(index)) == null)
{
return;
}
Rect itemRect = new Rect(container.TranslatePoint(default(Point), this.AdornedElement), container.RenderSize);
Point point1, point2;
double rotation;
if (this._orientation == Orientation.Vertical)
{
if (insertionIndex == this.AdornedElement.Items.Count)
{
itemRect.Y += container.RenderSize.Height;
}
point1 = new Point(itemRect.X - InsertionAdorner.Size, itemRect.Y);
point2 = new Point(itemRect.Right + InsertionAdorner.Size, itemRect.Y);
rotation = 0;
}
else
{
if (insertionIndex == this.AdornedElement.Items.Count)
{
itemRect.X += container.RenderSize.Width;
}
point1 = new Point(itemRect.X, itemRect.Y - InsertionAdorner.Size);
point2 = new Point(itemRect.X, itemRect.Bottom + InsertionAdorner.Size);
rotation = 90d;
}
InsertionAdorner.DrawArrow(drawingContext, point1, rotation);
InsertionAdorner.DrawArrow(drawingContext, point2, 180d + rotation);
}
public ShellView(
IFactory <FirmSummaryView> firmSummaryViewFactory,
IFactory <FirmSummaryViewModel> firmSummaryViewModelFactory,
IFactory <PositionsView> positionsViewFactory,
IFactory <PortfolioModel, PositionsViewModel> positionsViewModelFactory,
ITabTearOffHandler tabTearOffHandler,
ShellViewModel shellViewModel
)
{
this.InitializeComponent();
this._firmSummaryViewFactory = firmSummaryViewFactory;
this._firmSummaryViewModelFactory = firmSummaryViewModelFactory;
this._positionsViewFactory = positionsViewFactory;
this._positionsViewModelFactory = positionsViewModelFactory;
this.TabTearOffHandler = tabTearOffHandler;
this.DataContext = shellViewModel;
this.Loaded += this.ShellView_Loaded;
}
public static void SetHandler(TabControl tabControl, ITabTearOffHandler handler)
{
tabControl?.SetValue(TabTearOffBehavior.HandlerProperty, handler);
}
