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authorchai <chaifix@163.com>2021-04-07 15:38:57 +0800
committerchai <chaifix@163.com>2021-04-07 15:38:57 +0800
commitff5a3fbf31db349db11bbc5c60ba199d26780f19 (patch)
treecd8fec7d2910408470dc9d141dc72ac00cd148bf /Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/ExecuteEvents.cs
parent6b25723ca33a657882588b2cc3a58101bb9d33e6 (diff)
*绉诲姩鐩綍
Diffstat (limited to 'Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/ExecuteEvents.cs')
-rw-r--r--Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/ExecuteEvents.cs368
1 files changed, 0 insertions, 368 deletions
diff --git a/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/ExecuteEvents.cs b/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/ExecuteEvents.cs
deleted file mode 100644
index a749ce8..0000000
--- a/Assets/uGUI-2017.1/UnityEngine.UI/EventSystem/ExecuteEvents.cs
+++ /dev/null
@@ -1,368 +0,0 @@
-using System;
-using System.Collections.Generic;
-using UnityEngine.UI;
-
-namespace UnityEngine.EventSystems
-{
- // 最关键的类,调用gameobject对应的回调函数
- public static class ExecuteEvents
- {
- public delegate void EventFunction<T1>(T1 handler, BaseEventData eventData);
-
- public static T ValidateEventData<T>(BaseEventData data) where T : class
- {
- if ((data as T) == null)
- throw new ArgumentException(String.Format("Invalid type: {0} passed to event expecting {1}", data.GetType(), typeof(T)));
- return data as T;
- }
-
- private static readonly EventFunction<IPointerEnterHandler> s_PointerEnterHandler = Execute;
-
- private static void Execute(IPointerEnterHandler handler, BaseEventData eventData)
- {
- handler.OnPointerEnter(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IPointerExitHandler> s_PointerExitHandler = Execute;
-
- private static void Execute(IPointerExitHandler handler, BaseEventData eventData)
- {
- handler.OnPointerExit(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IPointerDownHandler> s_PointerDownHandler = Execute;
-
- private static void Execute(IPointerDownHandler handler, BaseEventData eventData)
- {
- handler.OnPointerDown(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IPointerUpHandler> s_PointerUpHandler = Execute;
-
- private static void Execute(IPointerUpHandler handler, BaseEventData eventData)
- {
- handler.OnPointerUp(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IPointerClickHandler> s_PointerClickHandler = Execute;
-
- private static void Execute(IPointerClickHandler handler, BaseEventData eventData)
- {
- handler.OnPointerClick(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IInitializePotentialDragHandler> s_InitializePotentialDragHandler = Execute;
-
- private static void Execute(IInitializePotentialDragHandler handler, BaseEventData eventData)
- {
- handler.OnInitializePotentialDrag(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IBeginDragHandler> s_BeginDragHandler = Execute;
-
- private static void Execute(IBeginDragHandler handler, BaseEventData eventData)
- {
- handler.OnBeginDrag(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IDragHandler> s_DragHandler = Execute;
-
- private static void Execute(IDragHandler handler, BaseEventData eventData)
- {
- handler.OnDrag(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IEndDragHandler> s_EndDragHandler = Execute;
-
- private static void Execute(IEndDragHandler handler, BaseEventData eventData)
- {
- handler.OnEndDrag(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IDropHandler> s_DropHandler = Execute;
-
- private static void Execute(IDropHandler handler, BaseEventData eventData)
- {
- handler.OnDrop(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IScrollHandler> s_ScrollHandler = Execute;
-
- private static void Execute(IScrollHandler handler, BaseEventData eventData)
- {
- handler.OnScroll(ValidateEventData<PointerEventData>(eventData));
- }
-
- private static readonly EventFunction<IUpdateSelectedHandler> s_UpdateSelectedHandler = Execute;
-
- private static void Execute(IUpdateSelectedHandler handler, BaseEventData eventData)
- {
- handler.OnUpdateSelected(eventData);
- }
-
- private static readonly EventFunction<ISelectHandler> s_SelectHandler = Execute;
-
- private static void Execute(ISelectHandler handler, BaseEventData eventData)
- {
- handler.OnSelect(eventData);
- }
-
- private static readonly EventFunction<IDeselectHandler> s_DeselectHandler = Execute;
-
- private static void Execute(IDeselectHandler handler, BaseEventData eventData)
- {
- handler.OnDeselect(eventData);
- }
-
- private static readonly EventFunction<IMoveHandler> s_MoveHandler = Execute;
-
- private static void Execute(IMoveHandler handler, BaseEventData eventData)
- {
- handler.OnMove(ValidateEventData<AxisEventData>(eventData));
- }
-
- private static readonly EventFunction<ISubmitHandler> s_SubmitHandler = Execute;
-
- private static void Execute(ISubmitHandler handler, BaseEventData eventData)
- {
- handler.OnSubmit(eventData);
- }
-
- private static readonly EventFunction<ICancelHandler> s_CancelHandler = Execute;
-
- private static void Execute(ICancelHandler handler, BaseEventData eventData)
- {
- handler.OnCancel(eventData);
- }
-
- public static EventFunction<IPointerEnterHandler> pointerEnterHandler
- {
- get { return s_PointerEnterHandler; }
- }
-
- public static EventFunction<IPointerExitHandler> pointerExitHandler
- {
- get { return s_PointerExitHandler; }
- }
-
- public static EventFunction<IPointerDownHandler> pointerDownHandler
- {
- get { return s_PointerDownHandler; }
- }
-
- public static EventFunction<IPointerUpHandler> pointerUpHandler
- {
- get { return s_PointerUpHandler; }
- }
-
- public static EventFunction<IPointerClickHandler> pointerClickHandler
- {
- get { return s_PointerClickHandler; }
- }
-
- public static EventFunction<IInitializePotentialDragHandler> initializePotentialDrag
- {
- get { return s_InitializePotentialDragHandler; }
- }
-
- public static EventFunction<IBeginDragHandler> beginDragHandler
- {
- get { return s_BeginDragHandler; }
- }
-
- public static EventFunction<IDragHandler> dragHandler
- {
- get { return s_DragHandler; }
- }
-
- public static EventFunction<IEndDragHandler> endDragHandler
- {
- get { return s_EndDragHandler; }
- }
-
- public static EventFunction<IDropHandler> dropHandler
- {
- get { return s_DropHandler; }
- }
-
- public static EventFunction<IScrollHandler> scrollHandler
- {
- get { return s_ScrollHandler; }
- }
-
- public static EventFunction<IUpdateSelectedHandler> updateSelectedHandler
- {
- get { return s_UpdateSelectedHandler; }
- }
-
- public static EventFunction<ISelectHandler> selectHandler
- {
- get { return s_SelectHandler; }
- }
-
- public static EventFunction<IDeselectHandler> deselectHandler
- {
- get { return s_DeselectHandler; }
- }
-
- public static EventFunction<IMoveHandler> moveHandler
- {
- get { return s_MoveHandler; }
- }
-
- public static EventFunction<ISubmitHandler> submitHandler
- {
- get { return s_SubmitHandler; }
- }
-
- public static EventFunction<ICancelHandler> cancelHandler
- {
- get { return s_CancelHandler; }
- }
-
- private static void GetEventChain(GameObject root, IList<Transform> eventChain)
- {
- eventChain.Clear();
- if (root == null)
- return;
-
- var t = root.transform;
- while (t != null)
- {
- eventChain.Add(t);
- t = t.parent;
- }
- }
-
- //IEventSystemHandler是所有接口的基类
- private static readonly ObjectPool<List<IEventSystemHandler>> s_HandlerListPool = new ObjectPool<List<IEventSystemHandler>>(null, l => l.Clear());
-
- // 向target gameobject发送一个事件,对每个实现了T接口的类执行functor方法(就是接口中定义的回调)
- public static bool Execute<T>(GameObject target, BaseEventData eventData, EventFunction<T> functor) where T : IEventSystemHandler
- {
- var internalHandlers = s_HandlerListPool.Get();
- GetEventList<T>(target, internalHandlers);
- // if (s_InternalHandlers.Count > 0)
- // Debug.Log("Executinng " + typeof (T) + " on " + target);
-
- // 拿到实现了T接口的组件,调用对应的方法
-
- for (var i = 0; i < internalHandlers.Count; i++)
- {
- T arg;
- try
- {
- arg = (T)internalHandlers[i];
- }
- catch (Exception e)
- {
- var temp = internalHandlers[i];
- Debug.LogException(new Exception(string.Format("Type {0} expected {1} received.", typeof(T).Name, temp.GetType().Name), e));
- continue;
- }
-
- try
- {
- functor(arg, eventData);
- }
- catch (Exception e)
- {
- Debug.LogException(e);
- }
- }
-
- var handlerCount = internalHandlers.Count;
- s_HandlerListPool.Release(internalHandlers);
- return handlerCount > 0;
- }
-
- /// <summary>
- /// Execute the specified event on the first game object underneath the current touch.
- /// </summary>
- private static readonly List<Transform> s_InternalTransformList = new List<Transform>(30);
-
- public static GameObject ExecuteHierarchy<T>(GameObject root, BaseEventData eventData, EventFunction<T> callbackFunction) where T : IEventSystemHandler
- {
- GetEventChain(root, s_InternalTransformList);
-
- for (var i = 0; i < s_InternalTransformList.Count; i++)
- {
- var transform = s_InternalTransformList[i];
- if (Execute(transform.gameObject, eventData, callbackFunction))
- return transform.gameObject;
- }
- return null;
- }
-
- //c component是否匹配类型T且是否被激活
- private static bool ShouldSendToComponent<T>(Component component) where T : IEventSystemHandler
- {
- var valid = component is T;
- if (!valid)
- return false;
-
- var behaviour = component as Behaviour;
- if (behaviour != null)
- return behaviour.isActiveAndEnabled;
- return true;
- }
-
- /// <summary>
- /// Get the specified object's event event.
- /// </summary>
- private static void GetEventList<T>(GameObject go, IList<IEventSystemHandler> results) where T : IEventSystemHandler
- {
- // Debug.LogWarning("GetEventList<" + typeof(T).Name + ">");
- if (results == null)
- throw new ArgumentException("Results array is null", "results");
-
- if (go == null || !go.activeInHierarchy)
- return;
-
- var components = ListPool<Component>.Get();
- go.GetComponents(components);
- // 遍历所有的组件,找到匹配类型T的
- for (var i = 0; i < components.Count; i++)
- {
- // 如果不匹配类型T,跳过这个
- if (!ShouldSendToComponent<T>(components[i]))
- continue;
-
- // Debug.Log(string.Format("{2} found! On {0}.{1}", go, s_GetComponentsScratch[i].GetType(), typeof(T)));
- results.Add(components[i] as IEventSystemHandler);
- }
- ListPool<Component>.Release(components);
- // Debug.LogWarning("end GetEventList<" + typeof(T).Name + ">");
- }
-
- /// <summary>
- /// Whether the specified game object will be able to handle the specified event.
- /// </summary>
- public static bool CanHandleEvent<T>(GameObject go) where T : IEventSystemHandler
- {
- var internalHandlers = s_HandlerListPool.Get();
- GetEventList<T>(go, internalHandlers);
- var handlerCount = internalHandlers.Count;
- s_HandlerListPool.Release(internalHandlers);
- return handlerCount != 0;
- }
-
- /// <summary>
- /// Bubble the specified event on the game object, figuring out which object will actually receive the event.
- /// </summary>
- public static GameObject GetEventHandler<T>(GameObject root) where T : IEventSystemHandler
- {
- if (root == null)
- return null;
-
- Transform t = root.transform;
- while (t != null)
- {
- if (CanHandleEvent<T>(t.gameObject))
- return t.gameObject;
- t = t.parent;
- }
- return null;
- }
- }
-}