private DataBindingDragDropModel GetDragFeedback(DragEventArgs args)
{
DataSchemaNodePathCollection result = (DataSchemaNodePathCollection)null;
if (!DragSourceHelper.FirstDataOfType <DataSchemaNodePathCollection>(args.Data, ref result) || result == null)
{
return((DataBindingDragDropModel)null);
}
SceneNode sceneNode = (SceneNode)this.ActiveView.GetSelectableElementAtPoint(args.GetPosition((IInputElement)this.ActiveView.ViewRootContainer), SelectionFor3D.None, false, false);
if (sceneNode == null)
{
sceneNode = (SceneNode)this.ActiveSceneViewModel.FindPanelClosestToActiveEditingContainer();
if (sceneNode == null)
{
return((DataBindingDragDropModel)null);
}
}
if (PlatformTypes.FrameworkTemplate.IsAssignableFrom((ITypeId)sceneNode.Type))
{
sceneNode = sceneNode.GetLocalValueAsSceneNode(FrameworkTemplateElement.VisualTreeProperty);
if (sceneNode == null)
{
return((DataBindingDragDropModel)null);
}
}
BindingSceneInsertionPoint insertionPoint = new BindingSceneInsertionPoint(sceneNode, (IProperty)null, -1);
return(DataBindingDragDropManager.GetDragFeedback(result, insertionPoint, DataBindingDragDropFlags.ArtboardDefault, Keyboard.Modifiers));
}
public static DataBindingDragDropModel GetDragFeedback(DataSchemaNodePathCollection information, BindingSceneInsertionPoint insertionPoint, DataBindingDragDropFlags dragFlags, ModifierKeys modifiers)
{
bool flag = (modifiers & ModifierKeys.Alt) == ModifierKeys.Alt;
if (!DataBindingDragDropManager.isAltModifier.HasValue)
{
if (flag)
{
DataBindingModeModel.Instance.SetMode(DataBindingMode.Details, false);
}
}
else if (DataBindingDragDropManager.isAltModifier.Value != flag)
{
DataBindingModeModel.Instance.SetMode(flag ? DataBindingMode.Details : DataBindingMode.Default, false);
}
DataBindingDragDropManager.isAltModifier = new bool?(flag);
if ((modifiers & ModifierKeys.Shift) == ModifierKeys.Shift)
{
dragFlags &= ~DataBindingDragDropFlags.AutoPickProperty;
dragFlags &= ~DataBindingDragDropFlags.AllowRetargetElement;
}
if (insertionPoint.Property != null)
{
dragFlags &= ~DataBindingDragDropFlags.CreateElement;
}
if (!BindingPropertyHelper.HasBindableProperties(insertionPoint.SceneNode))
{
dragFlags &= ~(DataBindingDragDropFlags.SetBinding | DataBindingDragDropFlags.AutoPickProperty);
}
DataBindingDragDropModel bindingDragDropModel = new DataBindingDragDropModel(information, insertionPoint, dragFlags, modifiers);
if (!DataBindingDragDropModel.Equals(bindingDragDropModel, DataBindingDragDropManager.effectiveDragModel))
{
PerformanceUtility.StartPerformanceSequence(PerformanceEvent.DataBindingDragModelUpdate);
DataBindingDragDropManager.effectiveDragModel = DataBindingDragDropManager.UpdateDragModel(bindingDragDropModel);
PerformanceUtility.EndPerformanceSequence(PerformanceEvent.DataBindingDragModelUpdate);
}
return(DataBindingDragDropManager.effectiveDragModel);
}
protected override bool OnDrop(DragEventArgs args)
{
this.previewHighlighter.Option = HighlightOption.Default;
this.previewHighlighter.InsertionPointPreview = (ISceneInsertionPoint)null;
this.FeedbackAdorner.CloseAdorner();
DataBindingDragDropModel dragFeedback = this.GetDragFeedback(args);
bool flag = false;
if (dragFeedback != null && dragFeedback.CheckDropFlags(DataBindingDragDropFlags.SetBinding | DataBindingDragDropFlags.CreateElement, false))
{
Point position = args.GetPosition((IInputElement)this.ActiveView.ViewRootContainer);
this.ToolBehaviorContext.SnappingEngine.Start(this.ToolBehaviorContext, (BaseFrameworkElement)null, (IList <BaseFrameworkElement>)null);
Point artboardSnappedDropPoint = this.ToolBehaviorContext.SnappingEngine.SnapPoint(position, EdgeFlags.TopLeft) * this.ActiveView.GetComputedTransformFromRoot((SceneElement)dragFeedback.TargetNode);
this.ToolBehaviorContext.SnappingEngine.Stop();
flag = DataBindingDragDropManager.Drop(dragFeedback, artboardSnappedDropPoint);
}
if (!this.IsSuspended)
{
this.PopSelf();
}
return(flag);
}
public void Dispose()
{
DataBindingDragDropManager.Reset();
DataBindingModeModel.Instance.SetMode(this.originalMode, true);
GC.SuppressFinalize((object)this);
}
public DragDropToken()
{
this.originalMode = DataBindingModeModel.Instance.Mode;
DataBindingDragDropManager.Reset();
}