private void HandleDragAbsoluteMoveTabInPlace(DragUndockHeader header, DragAbsoluteEventArgs args)
{
DraggedTabInfo draggedTabInfo = DockManager.Instance.DraggedTabInfo;
bool flag = draggedTabInfo.GetTabIndexAt(args.ScreenPoint) == draggedTabInfo.DraggedTabPosition;
if (flag)
{
draggedTabInfo.ClearVirtualTabRect();
}
if (header.ViewElement == null && draggedTabInfo.DraggedViewElement == null)
{
return;
}
ViewElement tab = header.ViewElement ?? draggedTabInfo.DraggedViewElement;
if (!draggedTabInfo.TabStripRect.Contains(args.ScreenPoint) || flag || draggedTabInfo.VirtualTabRect.Contains(args.ScreenPoint))
{
return;
}
int tabIndexAt = draggedTabInfo.GetTabIndexAt(args.ScreenPoint);
if (-1 == tabIndexAt)
{
return;
}
DockOperations.MoveTab(tab, tabIndexAt);
draggedTabInfo.SetVirtualTabRect(tabIndexAt);
draggedTabInfo.MoveTabRect(draggedTabInfo.DraggedTabPosition, tabIndexAt);
draggedTabInfo.DraggedTabPosition = tabIndexAt;
}
private void OnViewHeaderDragStarted(object sender, DragAbsoluteEventArgs args)
{
DragUndockHeader dragUndockHeader = (DragUndockHeader)args.OriginalSource;
if (dragUndockHeader.ViewElement != null && DockManager.Instance.DraggedViewElements.Count == 0)
{
DockManager.Instance.SetDraggedViewElements(dragUndockHeader.ViewElement);
}
if (!dragUndockHeader.IsWindowTitleBar && dragUndockHeader.ViewElement != null)
{
dragUndockHeader.CancelDrag();
if (DockManager.Instance.DraggedTabInfo != null && this.IsAutoDockAllowed(DockManager.Instance.DraggedTabInfo.TabStrip))
{
if (-1 != DockManager.Instance.DraggedTabInfo.DraggedTabPosition)
{
DockManager.Instance.DraggedTabInfo.RemoveTabRect(DockManager.Instance.DraggedTabInfo.DraggedTabPosition);
}
DockManager.Instance.DraggedTabInfo.Initialize(dragUndockHeader.ViewElement);
DockManager.Instance.DraggedTabInfo.DraggedTabPosition = -1;
}
else
{
DockManager.Instance.DraggedTabInfo = (DraggedTabInfo)null;
}
Rect currentUndockingRect = Rect.Empty;
if (dragUndockHeader.ViewFrameworkElement != null && ExtensionMethods.IsConnectedToPresentationSource((DependencyObject)dragUndockHeader.ViewFrameworkElement))
{
currentUndockingRect = new Rect(dragUndockHeader.ViewFrameworkElement.PointToScreen(new Point(0.0, 0.0)), DpiHelper.LogicalToDeviceUnits(dragUndockHeader.ViewFrameworkElement.RenderSize));
}
DockOperations.Undock(dragUndockHeader.ViewElement, dragUndockHeader.ViewElement.WindowProfile, args.ScreenPoint, currentUndockingRect);
}
DockManager.Instance.IsDragging = true;
}
private void OnViewHeaderDragAbsolute(object sender, DragAbsoluteEventArgs args)
{
DragUndockHeader header = (DragUndockHeader)args.OriginalSource;
if (header.IsWindowTitleBar)
{
this.HandleDragAbsoluteFloatingWindow(header, args);
}
else
{
if (DockManager.Instance.DraggedTabInfo == null)
{
return;
}
this.HandleDragAbsoluteMoveTabInPlace(header, args);
}
}
internal override DraggedTabInfo GetAutodockTarget(DragAbsoluteEventArgs args)
{
FloatingElement ancestor = Microsoft.VisualStudio.PlatformUI.ExtensionMethods.FindAncestor <FloatingElement>((Visual)(args.OriginalSource as DragUndockHeader));
if (ancestor != null)
{
FloatSite floatSite = ancestor.DataContext as FloatSite;
if (floatSite != null)
{
ConstrainedView constrainedView = floatSite.Child as ConstrainedView;
if (constrainedView != null && !constrainedView.CanAutoDock())
{
return((DraggedTabInfo)null);
}
}
}
return(base.GetAutodockTarget(args));
}
private void HandleDragAbsoluteFloatingWindow(DragUndockHeader header, DragAbsoluteEventArgs args)
{
DockManager.Instance.UpdateTargets(args);
DraggedTabInfo autodockTarget = DockManager.Instance.GetAutodockTarget(args);
bool flag = true;
ViewGroup viewGroup = header.ViewElement as ViewGroup;
if (viewGroup != null)
{
flag = viewGroup.VisibleChildren.Count == 1;
}
if (autodockTarget == null || !flag || DockManager.Instance.IsFloatingOverDockAdorner)
{
return;
}
ViewElement viewElement = header.ViewElement;
this.HandleDockIntoTabStrip(autodockTarget, header, args);
DockManager.Instance.DraggedTabInfo = autodockTarget;
DockManager.Instance.DraggedTabInfo.DraggedViewElement = viewElement;
}
private void HandleDockIntoTabStrip(DraggedTabInfo tabInfo, DragUndockHeader header, DragAbsoluteEventArgs args)
{
int dockPosition = tabInfo.GetClosestTabIndexAt(args.ScreenPoint);
if (-1 == dockPosition)
{
return;
}
ViewElement viewElement = tabInfo.TargetElement;
if (viewElement == null && tabInfo.GroupContainer != null)
{
viewElement = (ViewElement)DockOperations.CreateDocumentGroupAt(tabInfo.GroupContainer, tabInfo.GroupPosition);
viewElement.DockedHeight = tabInfo.GroupDockedHeight;
viewElement.DockedWidth = tabInfo.GroupDockedWidth;
viewElement.FloatingHeight = tabInfo.GroupFloatingHeight;
viewElement.FloatingWidth = tabInfo.GroupFloatingWidth;
}
if (!DockOperations.AreDockRestrictionsFulfilled(header.ViewElement, viewElement))
{
return;
}
bool flag = false;
ViewGroup viewGroup = tabInfo.NestedGroup as ViewGroup;
if (viewGroup != null)
{
flag = viewGroup.Children.Contains(header.ViewElement);
}
if (!flag && tabInfo.TabRects.Count > 0 && args.ScreenPoint.X > tabInfo.TabRects[tabInfo.TabRects.Count - 1].Right)
{
dockPosition = tabInfo.TabRects.Count;
}
if (tabInfo.TabRects.Count == 0)
{
dockPosition = 0;
}
if (DockManager.Instance.DraggedTabInfo != null && -1 != DockManager.Instance.DraggedTabInfo.DraggedTabPosition)
{
DockManager.Instance.DraggedTabInfo.RemoveTabRect(DockManager.Instance.DraggedTabInfo.DraggedTabPosition);
}
DockOperations.DockAt(viewElement, header.ViewElement, dockPosition);
tabInfo.TabStrip.IsNotificationNeeded = true;
tabInfo.DraggedTabPosition = dockPosition;
tabInfo.ClearVirtualTabRect();
DockManager.Instance.ClearAdorners();
}