//--------------------------------------------------------------------------------------------------------------------------------------
public bool AddEventHandler <T>(EventCb <T> cb, int priority, bool receiveDerivedTypeEvents = true)
{
//null check
if (cb == null)
{
DebugEx.Assert("Cannot give Null callback for YEventRouter");
return(false);
}
//Get or create route
var evType = typeof(T);
SortedSetTS <EvHandler> allRoutesForType;
lock (_ActiveRoutes)
{
allRoutesForType = _ActiveRoutes.TryGetOrDefault(evType);
if (allRoutesForType == null)
{
allRoutesForType = _ActiveRoutes[evType] = new SortedSetTS <EvHandler>(s_EvHandlerCmp);
}
//add to route
return(allRoutesForType.Add(new EvHandler()
{
Cb = cb,
Priority = priority,
ReceiveDerivedTypeEvents = receiveDerivedTypeEvents,
RunAsync = false
}));
}
}
//--------------------------------------------------------------------------------------------------------------------------------------
private void _ExecuteHandler <T>(object sender, T ev, object priv, bool forceAsync)
{
//declares
SortedSetTS <EvHandler> allRoutesForType = null;
var evType = typeof(T);
//null check
if (ev == null)
{
return;
}
//create event info
var evInfo = new EvInfo()
{
Priv = priv,
IsDerivedMatch = false,
};
//Execute
var executedCallbacks = new HashSet <object>();
while (evType != null && evType != typeof(object))
{
//get routes for type
allRoutesForType = _ActiveRoutes.TryGetOrDefault(evType);
if (allRoutesForType != null)
{
//Broadcast event
foreach (var evhandle in allRoutesForType)
{
if (!evInfo.IsDerivedMatch || evhandle.ReceiveDerivedTypeEvents)
{
try
{
//check that we haven't already run this callback
if (!executedCallbacks.Contains(evhandle.Cb))
{
//run synchronously or asynchronously?
if (evhandle.RunAsync)
{
//proper async mode; callbacks will be executed in series
EventQueue.Enqueue(new EventDescriptor()
{
Ev = ev, EvHandle = evhandle, EvInfo = evInfo, Sender = sender
});
}
else if (forceAsync)
{
//caller did TriggerEventAsync() and callback expects strong type
TaskEx.RunSafe(() => __exec(sender, ev, evInfo, evhandle));
}
else
{
__exec(sender, ev, evInfo, evhandle);
}
//add to hashset so that it's not executed again
executedCallbacks.Add(evhandle.Cb);
}
}
catch (Exception ex)
{
DebugEx.TraceErrorException(ex);
}
}
}
}
//now moving up the inheritance tree (toward object)
#if NETFX
evType = evType.BaseType;
#elif UNIVERSAL
evType = evType.GetTypeInfo().BaseType;
#endif
evInfo.IsDerivedMatch = true;
}
}
//--------------------------------------------------------------------------------------------------------------------------------------
private void _ExecuteHandler <T>(object sender, T ev)
{
//declares
SortedSetTS <EvHandler> allRoutesForType = null;
var evType = typeof(T);
//null check
if (ev == null)
{
return;
}
//create event info
var evInfo = new EvInfo()
{
priv = null,
IsDerivedMatch = false,
};
//Execute
var executedCallbacks = new HashSet <object>();
while (evType != null && evType != typeof(object))
{
//get routes for type
allRoutesForType = _ActiveRoutes.TryGetOrDefault(evType);
if (allRoutesForType != null)
{
//Broadcast event
foreach (var evhandle in allRoutesForType)
{
if (!evInfo.IsDerivedMatch || evhandle.ReceiveDerivedTypeEvents)
{
try
{
//check that we haven't already run this callback
if (!executedCallbacks.Contains(evhandle.Cb))
{
//use Dynamic callback if derived type; use known type otherwise
if (evInfo.IsDerivedMatch)
{
((dynamic)evhandle.Cb)(sender, evInfo, ev);
}
else
{
((EventCb <T>)evhandle.Cb)(sender, evInfo, ev);
}
//add to hashset so that it's not executed again
executedCallbacks.Add(evhandle.Cb);
}
}
catch (Exception ex)
{
DebugEx.TraceErrorException(ex);
}
}
}
}
//now moving up the inheritance tree (toward object)
#if NETFX
evType = evType.BaseType;
#elif UNIVERSAL
evType = evType.GetTypeInfo().BaseType;
#endif
evInfo.IsDerivedMatch = true;
}
}
