80 lines
2.4 KiB
C#
80 lines
2.4 KiB
C#
//현재 스크롤링 오브젝트가 가지고 있느 드래깅 이벤트를 부모 오브젝트에도 전달
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using UnityEngine;
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using System.Collections;
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using UnityEngine.UI;
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using System;
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using UnityEngine.EventSystems;
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public class ScrollRectEx : ScrollRect
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{
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private bool routeToParent = false;
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/// <summary>
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/// Do action for all parents
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/// </summary>
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private void DoForParents<T>(Action<T> action) where T : IEventSystemHandler
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{
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Transform parent = transform.parent;
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while (parent != null)
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{
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foreach (var component in parent.GetComponents<Component>())
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{
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if (component is T)
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action((T)(IEventSystemHandler)component);
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}
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parent = parent.parent;
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}
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}
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/// <summary>
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/// Always route initialize potential drag event to parents
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/// </summary>
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public override void OnInitializePotentialDrag(PointerEventData eventData)
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{
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DoForParents<IInitializePotentialDragHandler>((parent) => { parent.OnInitializePotentialDrag(eventData); });
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base.OnInitializePotentialDrag(eventData);
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}
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/// <summary>
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/// Drag event
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/// </summary>
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public override void OnDrag(UnityEngine.EventSystems.PointerEventData eventData)
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{
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if (routeToParent)
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DoForParents<IDragHandler>((parent) => { parent.OnDrag(eventData); });
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else
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base.OnDrag(eventData);
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}
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/// <summary>
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/// Begin drag event
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/// </summary>
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public override void OnBeginDrag(UnityEngine.EventSystems.PointerEventData eventData)
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{
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if (!horizontal && Math.Abs(eventData.delta.x) > Math.Abs(eventData.delta.y))
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routeToParent = true;
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else if (!vertical && Math.Abs(eventData.delta.x) < Math.Abs(eventData.delta.y))
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routeToParent = true;
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else
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routeToParent = false;
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if (routeToParent)
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DoForParents<IBeginDragHandler>((parent) => { parent.OnBeginDrag(eventData); });
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else
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base.OnBeginDrag(eventData);
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}
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/// <summary>
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/// End drag event
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/// </summary>
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public override void OnEndDrag(UnityEngine.EventSystems.PointerEventData eventData)
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{
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if (routeToParent)
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DoForParents<IEndDragHandler>((parent) => { parent.OnEndDrag(eventData); });
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else
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base.OnEndDrag(eventData);
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routeToParent = false;
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}
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} |