private bool CheckIfStepIsDescendent(TimelineStepViewBehaviour stepView)
{
// How can we target a descendent if it's being dragged with its parents? I'm sure we'll find a way, but until then...
// Prevent re-attachment to self...
return(Event.TargetsEnumerable.Contains(stepView.Step));
}
private void GenerateStartStepView()
{
StartStepView = Instantiate(StepViewPrefab).GetComponent <TimelineStepViewBehaviour>();
StartStepView.RectTransform.SetParent(StepViewParent, false);
StartStepView.RectTransform.anchoredPosition = Vector2.zero;
StartStepView.Step = Timeline.StartStep;
RegisterStepView(StartStepView, false);
}
public void ReceiveDraggedStep(TimelineStepViewBehaviour stepView)
{
if (CheckIfStepIsDescendent(stepView))
{
return;
}
stepView.Step.IsJustMovingNotBeingDeleted = true;
stepView.Step.RequestRemoval();
Event.AddTarget(stepView.Step);
stepView.Step.IsJustMovingNotBeingDeleted = false;
}
public static void UnregisterStepView(TimelineStepViewBehaviour stepView)
{
if (!Instance.StepViews.Contains(stepView))
{
throw new InvalidOperationException("Step view not registered.");
}
stepView.Clicked -= Instance.HandleStepViewClicked;
stepView.DragStarted -= Instance.HandleStepViewDragStarted;
stepView.DragEnded -= Instance.HandleStepViewDragEnded;
Instance.StepViews.Remove(stepView);
Instance.Arrange();
}
private void ClearStartStepView()
{
if (StartStepView == null)
{
return;
}
var ssv = StartStepView;
StartStepView = null;
UnregisterStepView(ssv);
ssv.Shutdown();
Destroy(ssv.gameObject);
}
public static void RegisterStepView(TimelineStepViewBehaviour stepView, bool select = true)
{
if (Instance.StepViews.Contains(stepView))
{
throw new InvalidOperationException("Step view already registered.");
}
stepView.Clicked += Instance.HandleStepViewClicked;
stepView.DragStarted += Instance.HandleStepViewDragStarted;
stepView.DragEnded += Instance.HandleStepViewDragEnded;
Instance.StepViews.Add(stepView);
Instance.Arrange();
if (select)
{
Instance.SelectedStep = stepView.Step;
}
}
private void HandleStepViewDropped(TimelineStepViewBehaviour stepView)
{
ReceiveDraggedStep(stepView);
}
private void HandleStepViewClicked(TimelineStepViewBehaviour stepView)
{
SelectedStep = stepView.Step;
}
private void HandleStepViewDragEnded(TimelineStepViewBehaviour stepView)
{
Arrange();
WorkspaceScrollRect.enabled = true;
}
private void HandleStepViewDragStarted(TimelineStepViewBehaviour stepView)
{
WorkspaceScrollRect.enabled = false;
}
public static Vector2 GetStepViewPositionRelativeToWorkspace(TimelineStepViewBehaviour stepView)
{
return(Instance.StepViewParent.position - stepView.RectTransform.position);
}