| private static ShouldStartDrag ( Vector2 pressPos, Vector2 currentPos, float threshold, bool useDragThreshold ) : bool | ||
| pressPos | Vector2 | |
| currentPos | Vector2 | |
| threshold | float | |
| useDragThreshold | bool | |
| return | bool | |
protected virtual void ProcessDrag(PointerEventData pointerEvent)
{ /* used in StandaloneInputModule.ProcessToucheEvents() and StandaloneInputModule.ProcessMouseEvent(int id)
* call OnBeginDrag
* call OnPointerUp, if for some reason pointerPress != pointerDrag
* call OnDrag
*/
if (pointerEvent.IsPointerMoving() && Cursor.lockState != CursorLockMode.Locked && !(pointerEvent.pointerDrag == null))
{
if (!pointerEvent.dragging && PointerInputModule.ShouldStartDrag(pointerEvent.pressPosition, pointerEvent.position, (float)base.eventSystem.pixelDragThreshold, pointerEvent.useDragThreshold))
{
ExecuteEvents.Execute <IBeginDragHandler>(pointerEvent.pointerDrag, pointerEvent, ExecuteEvents.beginDragHandler);
pointerEvent.dragging = true;
}
if (pointerEvent.dragging)
{
if (pointerEvent.pointerPress != pointerEvent.pointerDrag)
{
ExecuteEvents.Execute <IPointerUpHandler>(pointerEvent.pointerPress, pointerEvent, ExecuteEvents.pointerUpHandler);
pointerEvent.eligibleForClick = false;
pointerEvent.pointerPress = null;
pointerEvent.rawPointerPress = null;
}
ExecuteEvents.Execute <IDragHandler>(pointerEvent.pointerDrag, pointerEvent, ExecuteEvents.dragHandler);
}
}
}
/// <summary>
///
/// <para>
/// Process the drag for the current frame with the given pointer event.
/// </para>
///
/// </summary>
/// <param name="pointerEvent"/>
protected virtual void ProcessDrag(PointerEventData pointerEvent)
{
bool flag = pointerEvent.IsPointerMoving();
if (flag && (Object)pointerEvent.pointerDrag != (Object)null && (!pointerEvent.dragging && PointerInputModule.ShouldStartDrag(pointerEvent.pressPosition, pointerEvent.position, (float)this.eventSystem.pixelDragThreshold, pointerEvent.useDragThreshold)))
{
ExecuteEvents.Execute <IBeginDragHandler>(pointerEvent.pointerDrag, (BaseEventData)pointerEvent, ExecuteEvents.beginDragHandler);
pointerEvent.dragging = true;
}
if (!pointerEvent.dragging || !flag || !((Object)pointerEvent.pointerDrag != (Object)null))
{
return;
}
if ((Object)pointerEvent.pointerPress != (Object)pointerEvent.pointerDrag)
{
ExecuteEvents.Execute <IPointerUpHandler>(pointerEvent.pointerPress, (BaseEventData)pointerEvent, ExecuteEvents.pointerUpHandler);
pointerEvent.eligibleForClick = false;
pointerEvent.pointerPress = (GameObject)null;
pointerEvent.rawPointerPress = (GameObject)null;
}
ExecuteEvents.Execute <IDragHandler>(pointerEvent.pointerDrag, (BaseEventData)pointerEvent, ExecuteEvents.dragHandler);
}