private void AddPointerCanvas(IPointableCanvas pointerCanvas)
{
Action <PointerArgs> pointerCanvasAction = (args) => HandlePointerEvent(pointerCanvas.Canvas, args);
_pointerCanvasActionMap.Add(pointerCanvas, pointerCanvasAction);
pointerCanvas.WhenPointerEventRaised += pointerCanvasAction;
}
private void RemovePointerCanvas(IPointableCanvas pointerCanvas)
{
Action <PointerArgs> pointerCanvasAction = _pointerCanvasActionMap[pointerCanvas];
_pointerCanvasActionMap.Remove(pointerCanvas);
pointerCanvas.WhenPointerEventRaised -= pointerCanvasAction;
List <int> pointerIDs = new List <int>(_pointerMap.Keys);
foreach (int pointerID in pointerIDs)
{
Pointer pointer = _pointerMap[pointerID];
if (pointer.Canvas != pointerCanvas.Canvas)
{
continue;
}
ClearPointerSelection(pointer.PointerEventData);
pointer.MarkForDeletion();
_pointersForDeletion.Add(pointer);
_pointerMap.Remove(pointerID);
}
}
public static void RegisterPointableCanvas(IPointableCanvas pointerCanvas)
{
Assert.IsNotNull(Instance, "A PointableCanvasModule is required in the scene.");
Instance.AddPointerCanvas(pointerCanvas);
}
public static void UnregisterPointableCanvas(IPointableCanvas pointerCanvas)
{
Instance?.RemovePointerCanvas(pointerCanvas);
}
protected virtual void Awake()
{
PointableCanvas = _pointableCanvas as IPointableCanvas;
}