private IProperty GetContentPropertyFromDragDescriptor(TimelineDragDescriptor descriptor)
{
if (this.Context.Target != null)
{
if (descriptor.AllowBetween && this.Context.Target.SceneNode != null)
{
DocumentNode documentNode = this.Context.Target.SceneNode.DocumentNode;
if (documentNode.Parent != null)
{
if (documentNode.SitePropertyKey != null)
{
return(documentNode.SitePropertyKey);
}
return(documentNode.Parent.SitePropertyKey);
}
}
else
{
if (this.Context.Target is ElementTimelineItem && this.Context.Target.SceneNode != null)
{
return(this.Context.Target.SceneNode.InsertionTargetProperty);
}
ChildPropertyTimelineItem propertyTimelineItem = this.Context.Target as ChildPropertyTimelineItem;
if (propertyTimelineItem != null)
{
return(propertyTimelineItem.TargetProperty);
}
}
}
return((IProperty)null);
}
public DragDropContext(IDataObject data, TimelineItem target, TimelineDropEffects allowedEffects)
{
this.Data = data;
this.Target = target;
this.AllowedEffects = allowedEffects;
this.Descriptor = new TimelineDragDescriptor(this);
}
public bool CanDrop(TimelineDragDescriptor descriptor)
{
this.CheckNullArgument((object)descriptor, "descriptor");
if (this.IsLockedOrAncestorLocked)
{
return(false);
}
return(this.OnQueryCanDrop(descriptor));
}
protected override bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
this.CheckNullArgument((object)descriptor, "descriptor");
if (PlatformTypes.FrameworkTemplate.IsAssignableFrom((ITypeId)this.TargetNode.Type) || PlatformTypes.Style.IsAssignableFrom((ITypeId)this.TargetNode.Type))
{
return(false);
}
descriptor.DisableInBetween();
return(base.OnQueryCanDrop(descriptor));
}
protected override bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
if (!this.SourceData.CanCreateInstance(this.InsertionPoint))
{
return(false);
}
descriptor.DisableCopy();
descriptor.SetCreateIn(this.InsertionPoint);
descriptor.TryReplace((object)this.SourceData, SmartInsertionPoint.From(this.InsertionPoint), this.DestinationCollection);
return(descriptor.CanDrop);
}
public static DragTipModel FromDescriptor(TimelineDragDescriptor descriptor)
{
DragTipModel dragTipModel = (DragTipModel)null;
if (descriptor != null)
{
dragTipModel = new DragTipModel();
dragTipModel.SetEffect(descriptor);
dragTipModel.SetSource(descriptor);
}
return(dragTipModel);
}
protected override bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
DataBindingDragDropModel dragFeedback = this.DragFeedback;
if (dragFeedback == null || dragFeedback.DropFlags == DataBindingDragDropFlags.None)
{
return(false);
}
descriptor.DisableCopy();
descriptor.SetDataBindingTo((ISceneInsertionPoint)this.BindingInsertionPoint);
descriptor.UserData = (object)dragFeedback;
return(true);
}
public static IDropAction CreateInstance(DragDropContext context)
{
TimelineDragDescriptor timelineDragDescriptor = context.Descriptor.Clone();
foreach (IDropActionFactory dropActionFactory in (IEnumerable <IDropActionFactory>)DropActionFactory.factoryList)
{
IDropAction instance = dropActionFactory.CreateInstance(context);
if (instance != null)
{
return(instance);
}
context.Descriptor = timelineDragDescriptor.Clone();
}
context.Descriptor.DisableDrop();
return((IDropAction)null);
}
protected override bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
DocumentNodeMarkerSortedList sourceData = this.SourceData;
if (sourceData.Count > 1 && !this.CanAddMultipleItems)
{
return(false);
}
foreach (SceneNode node in SceneNode.FromMarkerList <SceneNode>((DocumentNodeMarkerSortedListBase)sourceData, this.ViewModel))
{
if (!this.CanDrop(node, descriptor))
{
return(false);
}
}
return(descriptor.CanDrop);
}
protected SceneElement GetDropTargetInfo(TimelineDropEffects dropEffects, TimelineDragDescriptor descriptor)
{
SceneElement sceneElement1 = this.Element;
if (sceneElement1 == null)
{
return((SceneElement)null);
}
descriptor.DropIndex = -1;
int num = 0;
SceneElement sceneElement2 = (SceneElement)null;
bool flag = false;
if ((dropEffects & TimelineDropEffects.Before) != TimelineDropEffects.None)
{
sceneElement1 = this.Element.VisualElementAncestor;
sceneElement2 = this.Element.VisualElementAncestor;
if (this.Item.IsExpanded && this.Item.HasActiveChild)
{
sceneElement1 = this.Element;
sceneElement2 = this.Element;
descriptor.RelativeDepth = 1;
}
num = 1;
flag = true;
}
else if ((dropEffects & TimelineDropEffects.After) != TimelineDropEffects.None)
{
sceneElement1 = this.Element.VisualElementAncestor;
sceneElement2 = this.Element.VisualElementAncestor;
flag = true;
}
if (flag && sceneElement2 != null)
{
ISceneNodeCollection <SceneNode> collectionForProperty = sceneElement2.GetCollectionForProperty((IPropertyId)this.GetContentPropertyFromDragDescriptor(descriptor));
if (collectionForProperty != null)
{
descriptor.DropIndex = collectionForProperty.IndexOf((SceneNode)this.Element) + num;
}
}
if (!this.Element.ViewModel.ActiveEditingContainer.IsAncestorOf((SceneNode)sceneElement1))
{
sceneElement1 = (SceneElement)null;
}
return(sceneElement1);
}
private void SetEffect(TimelineDragDescriptor descriptor)
{
this.DropEffectId = DropEffectId.None;
this.TargetName = string.Empty;
if (descriptor.IsNestingContents)
{
if (descriptor.IsCreating)
{
this.DropEffectId = DropEffectId.CreateAsParent;
}
else if (descriptor.AllowCopy)
{
this.DropEffectId = DropEffectId.CopyAsParent;
}
else if (descriptor.AllowMove)
{
this.DropEffectId = DropEffectId.MoveAsParent;
}
this.TargetName = this.GetDisplayName(descriptor.ReplacedChild);
}
else if (descriptor.IsReplacingChild)
{
this.DropEffectId = !descriptor.AllowCopy ? DropEffectId.Replace : DropEffectId.ReplaceAsCopy;
this.TargetName = this.GetDisplayName(descriptor.ReplacedChild);
}
else if (descriptor.IsCreating)
{
this.DropEffectId = DropEffectId.Create;
this.TargetName = this.GetDisplayName(descriptor.TargetParent);
}
else if (descriptor.AllowCopy)
{
this.DropEffectId = DropEffectId.Copy;
this.TargetName = this.GetDisplayName(descriptor.TargetParent);
}
else
{
if (!descriptor.AllowMove)
{
return;
}
this.DropEffectId = DropEffectId.Move;
this.TargetName = this.GetDisplayName(descriptor.TargetParent);
}
}
protected override bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
descriptor.DisableInBetween();
if (!this.InsertionPoint.CanInsert((ITypeId)this.SourceData.Type))
{
return(false);
}
if (descriptor.AllowCopy)
{
descriptor.SetCopyInto(this.InsertionPoint);
}
else
{
descriptor.SetMoveInto(this.InsertionPoint);
}
descriptor.TryReplace((object)this.SourceData, SmartInsertionPoint.From(this.InsertionPoint), this.DestinationCollection);
return(true);
}
private void SetSource(TimelineDragDescriptor descriptor)
{
DocumentNodeMarkerSortedList result1 = (DocumentNodeMarkerSortedList)null;
if (DragSourceHelper.FirstDataOfType <DocumentNodeMarkerSortedList>(descriptor.SourceObject, ref result1))
{
if (result1.Count == 1 && descriptor.TargetItem != null)
{
if (!this.SetSource((object)descriptor.TargetItem.TimelineItemManager.ViewModel.GetSceneNode(result1.MarkerAt(0).Node)))
{
;
}
}
else
{
this.SourceName = string.Format((IFormatProvider)CultureInfo.CurrentCulture, StringTable.DragMultipleItemsFormat, new object[1]
{
(object)result1.Count
});
this.SourceType = string.Empty;
}
}
else
{
Asset result2 = (Asset)null;
if (DragSourceHelper.FirstDataOfType <Asset>(descriptor.SourceObject, ref result2) && this.SetSource((object)result2))
{
return;
}
DataSchemaNodePathCollection result3 = (DataSchemaNodePathCollection)null;
if (DragSourceHelper.FirstDataOfType <DataSchemaNodePathCollection>(descriptor.SourceObject, ref result3))
{
this.SetDataBinding(descriptor.UserData as DataBindingDragDropModel);
}
else
{
this.SourceName = this.SourceType = string.Empty;
}
}
}
private bool CanDrop(SceneNode node, TimelineDragDescriptor descriptor)
{
SceneElement sceneElement;
if (!descriptor.AllowCopy && !descriptor.AllowMove || ((sceneElement = node as SceneElement) == null || !this.InsertionPoint.CanInsert((ITypeId)sceneElement.Type)))
{
return(false);
}
if (descriptor.AllowCopy)
{
descriptor.SetCopyInto(this.InsertionPoint);
}
else
{
if (sceneElement.IsAncestorOf(this.TargetNode))
{
return(false);
}
descriptor.SetMoveInto(this.InsertionPoint);
}
descriptor.TryReplace((object)sceneElement, SmartInsertionPoint.From(this.InsertionPoint), this.DestinationCollection);
return(true);
}
protected override bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
descriptor.DisableInBetween();
if (!this.InsertionPoint.CanInsert((ITypeId)this.SourceData.Type))
{
return(false);
}
if (descriptor.AllowCopy)
{
descriptor.SetCopyInto(this.InsertionPoint);
}
else
{
descriptor.SetMoveInto(this.InsertionPoint);
}
DocumentNodePath valueAsDocumentNode = this.TargetNode.GetLocalValueAsDocumentNode(Base2DElement.EffectProperty);
if (valueAsDocumentNode != null && valueAsDocumentNode.Node == this.SourceData.DocumentNode)
{
return(false);
}
descriptor.TryReplace((object)this.SourceData, SmartInsertionPoint.From(this.InsertionPoint), this.DestinationCollection);
return(true);
}
protected override bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
descriptor.DisableInBetween();
return(base.OnQueryCanDrop(descriptor));
}
protected virtual bool OnQueryCanDrop(TimelineDragDescriptor descriptor)
{
descriptor.DisableDrop();
return(false);
}