public static bool CanDeleteAction(TimelineActionNode action)
{
BeginActionNode beginActionNode = action as BeginActionNode;
if (beginActionNode == null || beginActionNode.TargetTimeline == null)
{
return(true);
}
bool flag1 = false;
bool flag2 = false;
foreach (TimelineActionNode timelineActionNode in action.TargetTimeline.ControllingActions)
{
if (timelineActionNode is BeginActionNode && timelineActionNode != beginActionNode)
{
flag2 = true;
}
else if (timelineActionNode is ControllableStoryboardActionNode)
{
flag1 = true;
}
}
if (!flag2)
{
return(!flag1);
}
return(true);
}
public static bool CanDeleteTrigger(TriggerBaseNode triggerNode)
{
List <SceneNode> list = new List <SceneNode>();
foreach (SceneNode sceneNode in (IEnumerable <TriggerActionNode>)triggerNode.EnterActions)
{
list.Add(sceneNode);
}
foreach (SceneNode sceneNode in (IEnumerable <TriggerActionNode>)triggerNode.ExitActions)
{
list.Add(sceneNode);
}
EventTriggerNode eventTriggerNode = triggerNode as EventTriggerNode;
if (eventTriggerNode != null)
{
list.AddRange((IEnumerable <SceneNode>)eventTriggerNode.Actions);
}
foreach (SceneNode sceneNode in list)
{
BeginActionNode beginActionNode = sceneNode as BeginActionNode;
if (beginActionNode != null && beginActionNode.TargetTimeline != null)
{
bool flag1 = false;
bool flag2 = false;
foreach (TimelineActionNode timelineActionNode in beginActionNode.TargetTimeline.ControllingActions)
{
if (!list.Contains((SceneNode)timelineActionNode))
{
if (timelineActionNode is BeginActionNode && timelineActionNode != beginActionNode)
{
flag2 = true;
}
else if (timelineActionNode is ControllableStoryboardActionNode)
{
flag1 = true;
}
}
}
if (!flag2 && flag1)
{
return(false);
}
}
}
return(true);
}
