internal void ReceiveDrag(InterTabTransfer interTabTransfer)
{
var myWindow = Window.GetWindow(this);
if (myWindow == null)
{
throw new ApplicationException("Unable to find owning window.");
}
myWindow.Activate();
_interTabTransfer = interTabTransfer;
if (Items.Count == 0)
{
_dragablzItemsControl.LockedMeasure = new Size(
interTabTransfer.ItemPositionWithinHeader.X + interTabTransfer.ItemSize.Width,
interTabTransfer.ItemPositionWithinHeader.Y + interTabTransfer.ItemSize.Height);
}
AddToSource(interTabTransfer.Item);
SelectedItem = interTabTransfer.Item;
Dispatcher.BeginInvoke(new Action(() => Layout.RestoreFloatingItemSnapShots(this, interTabTransfer.FloatingItemSnapShots)), DispatcherPriority.Loaded);
_dragablzItemsControl.InstigateDrag(interTabTransfer.Item, newContainer =>
{
newContainer.PartitionAtDragStart = interTabTransfer.OriginatorContainer.PartitionAtDragStart;
newContainer.IsDropTargetFound = true;
if (interTabTransfer.TransferReason == InterTabTransferReason.Breach)
{
if (interTabTransfer.BreachOrientation == Orientation.Horizontal)
{
newContainer.Y = interTabTransfer.OriginatorContainer.Y;
}
else
{
newContainer.X = interTabTransfer.OriginatorContainer.X;
}
}
else
{
var mouseXOnItemsControl = Native.GetCursorPos().X - _dragablzItemsControl.PointToScreen(new Point()).X;
newContainer.X = mouseXOnItemsControl - interTabTransfer.DragStartItemOffset.X;
newContainer.Y = 0;
}
newContainer.MouseAtDragStart = interTabTransfer.DragStartItemOffset;
});
}
private bool MonitorReentry(DragablzDragDeltaEventArgs e)
{
var screenMousePosition = _dragablzItemsControl.PointToScreen(Mouse.GetPosition(_dragablzItemsControl));
var otherTabablzControls = LoadedInstances
.Where(
tc =>
tc != this && tc.InterTabController != null &&
Equals(tc.InterTabController.Partition, InterTabController.Partition))
.Select(tc =>
{
var topLeft = tc._dragablzItemsControl.PointToScreen(new Point());
var bottomRight =
tc._dragablzItemsControl.PointToScreen(new Point(tc._dragablzItemsControl.ActualWidth,
tc._dragablzItemsControl.ActualHeight));
return(new { tc, topLeft, bottomRight });
});
var target = Native.SortWindowsTopToBottom(Application.Current.Windows.OfType <Window>())
.Join(otherTabablzControls, w => w, a => Window.GetWindow(a.tc), (w, a) => a)
.FirstOrDefault(a => new Rect(a.topLeft, a.bottomRight).Contains(screenMousePosition));
if (target != null)
{
var mousePositionOnItem = Mouse.GetPosition(e.DragablzItem);
var floatingItemSnapShots = this.VisualTreeDepthFirstTraversal()
.OfType <Layout>()
.SelectMany(l => l.FloatingDragablzItems().Select(FloatingItemSnapShot.Take))
.ToList();
e.DragablzItem.IsDropTargetFound = true;
var item = RemoveItem(e.DragablzItem);
var interTabTransfer = new InterTabTransfer(item, e.DragablzItem, mousePositionOnItem, floatingItemSnapShots);
e.DragablzItem.IsDragging = false;
target.tc.ReceiveDrag(interTabTransfer);
e.Cancel = true;
return(true);
}
return(false);
}
private void MonitorBreach(DragablzDragDeltaEventArgs e)
{
var mousePosition = Mouse.GetPosition(_dragablzItemsControl);
Orientation?breachOrientation = null;
if (mousePosition.X < -InterTabController.HorizontalPopoutGrace ||
(mousePosition.X - _dragablzItemsControl.ActualWidth) > InterTabController.HorizontalPopoutGrace)
{
breachOrientation = Orientation.Horizontal;
}
else if (mousePosition.Y < -InterTabController.VerticalPopoutGrace ||
(mousePosition.Y - _dragablzItemsControl.ActualHeight) > InterTabController.VerticalPopoutGrace)
{
breachOrientation = Orientation.Vertical;
}
if (breachOrientation.HasValue)
{
var newTabHost = InterTabController.InterTabClient.GetNewHost(InterTabController.InterTabClient,
InterTabController.Partition, this);
if (newTabHost == null || newTabHost.TabablzControl == null || newTabHost.Container == null)
{
throw new ApplicationException("New tab host was not correctly provided");
}
var item = _dragablzItemsControl.ItemContainerGenerator.ItemFromContainer(e.DragablzItem);
var myWindow = Window.GetWindow(this);
if (myWindow == null)
{
throw new ApplicationException("Unable to find owning window.");
}
newTabHost.Container.Width = myWindow.RestoreBounds.Width;
newTabHost.Container.Height = myWindow.RestoreBounds.Height;
var dragStartWindowOffset = e.DragablzItem.TranslatePoint(new Point(), myWindow);
dragStartWindowOffset.Offset(e.DragablzItem.MouseAtDragStart.X, e.DragablzItem.MouseAtDragStart.Y);
var borderVector = myWindow.PointToScreen(new Point()) - new Point(myWindow.Left, myWindow.Top);
dragStartWindowOffset.Offset(borderVector.X, borderVector.Y);
var dragableItemHeaderPoint = e.DragablzItem.TranslatePoint(new Point(), _dragablzItemsControl);
var dragableItemSize = new Size(e.DragablzItem.ActualWidth, e.DragablzItem.ActualHeight);
var interTabTransfer = new InterTabTransfer(item, e.DragablzItem, breachOrientation.Value, dragStartWindowOffset, e.DragablzItem.MouseAtDragStart, dragableItemHeaderPoint, dragableItemSize);
newTabHost.Container.Left = myWindow.Left;
newTabHost.Container.Top = myWindow.Top;
newTabHost.Container.Show();
var contentPresenter = FindChildContentPresenter(item);
RemoveFromSource(item);
_itemsHolder.Children.Remove(contentPresenter);
if (Items.Count == 0)
{
Layout.ConsolidateBranch(this);
}
if (_previousSelection != null && Items.Contains(_previousSelection))
{
SelectedItem = _previousSelection;
}
else
{
SelectedItem = Items.OfType <object>().FirstOrDefault();
}
foreach (var dragablzItem in _dragablzItemsControl.DragablzItems())
{
dragablzItem.IsDragging = false;
dragablzItem.IsSiblingDragging = false;
}
newTabHost.TabablzControl.ReceiveDrag(interTabTransfer);
interTabTransfer.OriginatorContainer.IsDropTargetFound = true;
e.Cancel = true;
}
}
private bool MonitorReentry(DockDragDeltaEventArgs e)
{
var screenMousePosition = MouseDevice.Instance.Position;
var sourceDockControl = (DockControl)e.Source;
if (((IList)sourceDockControl.Items).Count > 1 && e.DockItem.LogicalIndex < sourceDockControl.FixedHeaderCount)
{
return(false);
}
var otherDockControls = LoadedInstances
.Where(
dc =>
dc != this && dc.InterTabController != null && InterTabController != null &&
Equals(dc.InterTabController.Partition, InterTabController.Partition))
.Select(dc =>
{
var topLeft = dc._dockItemsControl.PointToScreen(new Point());
var lastFixedItem = dc._dockItemsControl.DockItems()
.OrderBy(di => di.LogicalIndex)
.Take(dc._dockItemsControl.FixedItemCount)
.LastOrDefault();
if (lastFixedItem != null)
{
topLeft.WithX(lastFixedItem.X + lastFixedItem.Width);
}
var bottomRight = dc.PointToScreen(new Point(dc._dockItemsControl.Width,
dc._dockItemsControl.Height));
return(new { dc, topLeft, bottomRight });
});
// Perspex does not yet support iterating windows on top of this,
// Perspex does not allow access to Application from the current library setup.
Window target = null;
// force fail for now
if (target == null)
{
return(false);
}
var mousePositionOnItem = screenMousePosition * e.DockItem.TransformToVisual(e.DockItem);
var floatingItemSnapShots = e.DockItem.GetVisualChildren().OfType <Layout>()
.SelectMany(l => l.FloatingDockItems().Select(FloatingItemSnapShot.Take))
.ToList();
e.DockItem.IsDropTargetFound = true;
var item = RemoveItem(e.DockItem);
var interTabTransfer = new InterTabTransfer(item, e.DockItem, mousePositionOnItem.Value, floatingItemSnapShots);
e.DockItem.IsDragging = false;
//target.tc.RecieveDrag(interTabTransfer);
e.Cancel = true;
return(true);
}
