void OnLongClick()
{
EnterState_AfterLongClickDragAccepted_WaitingToBeginDrag();
var evSystem = GetOrFindEventSystem();
if (!evSystem)
{
EnterState_WaitingForPress();
return;
}
var canvas = GetComponentInParent <Canvas>();
var raycaster = canvas.GetComponentInParent <GraphicRaycaster>();
var raycastResults = new List <RaycastResult>();
var pev = new PointerEventData(evSystem);
pev.position = _CurrentPressEventWorldPosition;
raycaster.Raycast(pev, raycastResults);
bool foundThis = false;
foreach (var res in raycastResults)
{
if (res.gameObject == gameObject)
{
foundThis = true;
break;
}
}
// Happens if the object is moved externally while the pointer remains still
if (!foundThis)
{
EnterState_AfterLongClickDragDeclined_WaitingToBeginDrag();
return;
}
_Canvas = canvas;
_CanvasRT = _Canvas.transform as RectTransform;
_GraphicRaycaster = raycaster;
var pos = RT.position;
RT.SetParent(_CanvasRT, false);
RT.position = pos; // preserving the pos
SetVisualMode(VisualMode.OVER_OWNER_OR_OUTSIDE);
if (dragDropListener != null && !dragDropListener.OnPrepareToDragItem(this))
{
EnterState_AfterLongClickDragDeclined_WaitingToBeginDrag();
}
}
