/// <summary>
/// 单一订阅
/// </summary>
/// <param name="actionType"></param>
/// <param name="handler"></param>
/// <param name="useLatestPayload"></param>
/// <returns></returns>
public Unsubscibe Subscribe(Type actionType, EventHandler <YEventArgs> handler, bool useLatestPayload = true)
{
lock (locker) {
if (!eventSource.ContainsKey(actionType))
{
eventSource[actionType] = new YEventSource();
}
var source = eventSource[actionType];
WeakEventManager <YEventSource, YEventArgs> .AddHandler(source, nameof(YEventSource.Event), handler);
if (useLatestPayload && latestPayload?.GetType() == actionType)
{
handler?.Invoke(new YEventSource()
{
CallFrame = new StackTrace().GetFrame(0)
}, new YEventArgs(latestPayload));
}
}
return(() => {
lock (locker) {
var source = eventSource[actionType];
WeakEventManager <YEventSource, YEventArgs> .RemoveHandler(source, nameof(YEventSource.Event), handler);
}
});
}
/// <summary>
/// 集合订阅
/// </summary>
/// <param name="handlers"></param>
/// <param name="useLatestPayload"></param>
/// <returns></returns>
public Unsubscibe Subscribe(IDictionary <Type, EventHandler <YEventArgs> > handlers, bool useLatestPayload = true)
{
lock (locker) {
foreach (var pair in handlers)
{
var actionType = pair.Key;
var handler = pair.Value;
if (!eventSource.ContainsKey(actionType))
{
eventSource[actionType] = new YEventSource();
}
var source = eventSource[actionType];
WeakEventManager <YEventSource, YEventArgs> .AddHandler(source, nameof(YEventSource.Event), handler);
if (useLatestPayload && latestPayload?.GetType() == actionType)
{
handler?.Invoke(this, new YEventArgs(latestPayload));
}
}
}
return(() => {
lock (locker) {
foreach (var pair in handlers)
{
var source = eventSource[pair.Key];
WeakEventManager <YEventSource, YEventArgs> .RemoveHandler(source, nameof(YEventSource.Event), pair.Value);
}
}
});
}
