/// <summary>
/// Triggers events and queries for changes in drag and drop operations. Should be called every frame.
/// </summary>
public void Update()
{
Vector2I currentWindowPos = parentWindow.ScreenToWindowPos(Input.PointerPosition);
if (triggerStartLocalDrag)
{
isLocalDragInProgress = true;
triggerStartLocalDrag = false;
if (OnStart != null)
{
OnStart(currentWindowPos);
}
}
if (triggerEndLocalDrag)
{
triggerEndLocalDrag = false;
if (OnEnd != null)
{
OnEnd(currentWindowPos);
}
}
if (isOSDragActive)
{
return;
}
bool externalDragInProgress = DragDrop.DragInProgress && DragDrop.Type == DragDropType.SceneObject;
if (isLocalDragInProgress || externalDragInProgress)
{
if (lastDragWindowPos != currentWindowPos)
{
if (!isDragInBounds)
{
if (Bounds.Contains(currentWindowPos))
{
isDragInBounds = true;
if (OnEnter != null)
{
OnEnter(currentWindowPos);
}
}
}
if (OnDrag != null)
{
OnDrag(currentWindowPos);
}
if (isDragInBounds)
{
if (!Bounds.Contains(currentWindowPos))
{
isDragInBounds = false;
if (OnLeave != null)
{
OnLeave();
}
}
}
lastDragWindowPos = currentWindowPos;
}
}
if (DragDrop.DropInProgress && Bounds.Contains(currentWindowPos))
{
if (DragDrop.Type == DragDropType.Resource)
{
if (OnDropResource != null)
{
ResourceDragDropData resourceDragDrop = (ResourceDragDropData)DragDrop.Data;
OnDropResource(currentWindowPos, resourceDragDrop.Paths);
}
}
else if (DragDrop.Type == DragDropType.SceneObject)
{
if (OnDropSceneObject != null)
{
SceneObjectDragDropData sceneDragDrop = (SceneObjectDragDropData)DragDrop.Data;
OnDropSceneObject(currentWindowPos, sceneDragDrop.Objects);
}
}
isDragInBounds = false;
}
}
private static extern void Internal_CreateInstance(SceneObjectDragDropData instance, SceneObject[] objects);
