上海虹口龙之梦项目
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// for uGUI(from 4.6)
#if !(UNITY_4_0 || UNITY_4_1 || UNITY_4_2 || UNITY_4_3 || UNITY_4_4 || UNITY_4_5)
using System; // require keep for Windows Universal App
using UnityEngine;
using UnityEngine.EventSystems;
namespace UniRx.Triggers
{
[DisallowMultipleComponent]
public class ObservableBeginDragTrigger : ObservableTriggerBase, IEventSystemHandler, IBeginDragHandler
{
Subject<PointerEventData> onBeginDrag;
void IBeginDragHandler.OnBeginDrag(PointerEventData eventData)
{
if (onBeginDrag != null) onBeginDrag.OnNext(eventData);
}
public IObservable<PointerEventData> OnBeginDragAsObservable()
{
return onBeginDrag ?? (onBeginDrag = new Subject<PointerEventData>());
}
protected override void RaiseOnCompletedOnDestroy()
{
if (onBeginDrag != null)
{
onBeginDrag.OnCompleted();
}
}
}
}
#endif