internal bool IsValidDropContext(HitTestInfo dropLocation)
{
if (this.draggedActivities.Count == 0)
{
return(false);
}
if (dropLocation == null || dropLocation.AssociatedDesigner == null)
{
return(false);
}
CompositeActivityDesigner compositeDesigner = dropLocation.AssociatedDesigner as CompositeActivityDesigner;
if (compositeDesigner == null)
{
return(false);
}
if (!compositeDesigner.IsEditable || !compositeDesigner.CanInsertActivities(dropLocation, new List <Activity>(this.draggedActivities).AsReadOnly()))
{
return(false);
}
if (!this.wasCtrlKeyPressed && this.existingDraggedActivities.Count > 0)
{
//We are trying to move the actvities with designer
if (!DesignerHelpers.AreAssociatedDesignersMovable(this.draggedActivities))
{
return(false);
}
if (IsRecursiveDropOperation(dropLocation.AssociatedDesigner))
{
return(false);
}
IDictionary commonParentActivities = Helpers.PairUpCommonParentActivities(this.draggedActivities);
foreach (DictionaryEntry entry in commonParentActivities)
{
CompositeActivityDesigner compositeActivityDesigner = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
Activity[] activitiesToMove = (Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity));
if (compositeActivityDesigner != null && !compositeActivityDesigner.CanMoveActivities(dropLocation, new List <Activity>(activitiesToMove).AsReadOnly()))
{
return(false);
}
}
}
return(true);
}
internal bool IsValidDropContext(System.Workflow.ComponentModel.Design.HitTestInfo dropLocation)
{
if (this.draggedActivities.Count == 0)
{
return(false);
}
if ((dropLocation == null) || (dropLocation.AssociatedDesigner == null))
{
return(false);
}
CompositeActivityDesigner associatedDesigner = dropLocation.AssociatedDesigner as CompositeActivityDesigner;
if (associatedDesigner == null)
{
return(false);
}
if (!associatedDesigner.IsEditable || !associatedDesigner.CanInsertActivities(dropLocation, new List <Activity>(this.draggedActivities).AsReadOnly()))
{
return(false);
}
if (!this.wasCtrlKeyPressed && (this.existingDraggedActivities.Count > 0))
{
if (!DesignerHelpers.AreAssociatedDesignersMovable(this.draggedActivities))
{
return(false);
}
if (this.IsRecursiveDropOperation(dropLocation.AssociatedDesigner))
{
return(false);
}
foreach (DictionaryEntry entry in Helpers.PairUpCommonParentActivities(this.draggedActivities))
{
CompositeActivityDesigner designer = ActivityDesigner.GetDesigner(entry.Key as Activity) as CompositeActivityDesigner;
Activity[] collection = (Activity[])((ArrayList)entry.Value).ToArray(typeof(Activity));
if ((designer != null) && !designer.CanMoveActivities(dropLocation, new List <Activity>(collection).AsReadOnly()))
{
return(false);
}
}
}
return(true);
}