/// <summary>
/// 移除监听
/// </summary>
/// <param name="type"></param>
/// <param name="callback"></param>
public bool RevmoeEventListener(string type, Action <CallbackVo> callback)
{
bool isDispatch = mDispatchDic.ContainsKey(type);
List <CallbackVo> eventList;
mEventDic.TryGetValue(type, out eventList);
if (eventList == null)
{
return(false);
}
for (int i = 0; i < eventList.Count; i++)
{
CallbackVo callbackVo = eventList[i];
if (callbackVo.Callback == callback)
{
if (isDispatch)
{
//派发时只标记
callbackVo.MarkRemove();
}
else
{
eventList.RemoveAt(i);
}
break;
}
}
//派发后本来就会做这个事情，所以只要处理非派发的情况就可以了
if (!isDispatch)
{
if (eventList.Count == 0)
{
mEventDic.Remove(type);
}
}
return(true);
}
/// <summary>
/// 增加监听
/// </summary>
/// <param name="type"></param>
/// <param name="callback"></param>
/// <param name="level"></param>
/// <param name="autoRemove"></param>
/// <param name="cancelable"></param>
/// <returns>是否成功</returns>
public bool AddEventListener(string type, Action <CallbackVo> callback, uint level = 0, bool autoRemove = false, bool cancelable = false)
{
List <CallbackVo> eventList;
mEventDic.TryGetValue(type, out eventList);
if (eventList == null)
{
eventList = new List <CallbackVo>();
mEventDic[type] = eventList;
}
foreach (CallbackVo callbackVo in eventList)
{
if (callbackVo.Callback == callback)
{
mLogger.LogWarning("callbackVo.Callback == callback", "AddEventListener");
return(false);
}
}
CallbackVo cv = new CallbackVo(
type,
callback,
null,
this,
level,
autoRemove,
cancelable,
mModifier);
eventList.Add(cv);
//如果是在派发中，则不排序，派发完会排序
if (!mDispatchDic.ContainsKey(type))
{
eventList.Sort();
}
return(true);
}
/// <summary>
/// 派发事件
/// </summary>
/// <param name="type"></param>
/// <param name="data"></param>
public void DispatchEvent(string type, object data = null)
{
if (mDispatchDic.ContainsKey(type))
{
mLogger.LogError("不能在派发" + type + "事件时再派发" + type + "事件");
return;
}
List <CallbackVo> eventList;
mEventDic.TryGetValue(type, out eventList);
if (eventList == null)
{
return;
}
//start dispatch
//1. 在handler继续派发当前类型的消息, 处理方法：忽略并打错误LOG。
//2. 在handler里增加handler，处理方法：加入事件处理尾部执行，并在处理完全部handler后排序（加入时并不排序）
//3. 在handler里删除handler, 处理方法：标记handler已经被删除，并在处理完全部handler后真实删除
mDispatchDic[type] = true;
int beforCount = eventList.Count;
for (int i = 0; i < eventList.Count; i++)
{
CallbackVo callbackVo = eventList[i];
if (callbackVo.TobeRemove)
{
continue;
}
if (data != null)
{
mModifier.Set("Data", data);
callbackVo.Modify();
}
if (callbackVo.Callback != null)
{
try
{
callbackVo.Callback(callbackVo);
}
catch (Exception ex)
{
Debug.LogError(ex.Message + ", " + ex.StackTrace);
}
}
if (callbackVo.AutoRemove)
{
callbackVo.MarkRemove();
}
//取消了后续事件处理
if (callbackVo.IsDefaultPrevented)
{
mModifier.Set("IsDefaultPrevented", false);
callbackVo.Modify();
break;
}
}
int afterCount = eventList.Count;
//说明有增加handler，要重新排序
bool needSort = beforCount != afterCount;
//删除被标记移除的handler
for (int i = afterCount - 1; i >= 0; i--)
{
CallbackVo callbackVo = eventList[i];
if (callbackVo.TobeRemove)
{
eventList.RemoveAt(i);
}
}
//如果没有了，就全删除
if (eventList.Count == 0)
{
mEventDic.Remove(type);
}
else
{
if (needSort)
{
eventList.Sort();
}
}
//end dispatch
mDispatchDic.Remove(type);
}
