//
// Private Methods
//
private void PrivateAddHandler(ICommand source, EventHandler <EventArgs> handler)
{
// get the list of sinks for this source, creating if necessary
List <HandlerSink> list = (List <HandlerSink>) this[source];
if (list == null)
{
list = new List <HandlerSink>();
this[source] = list;
}
// add a new sink to the list
HandlerSink sink = new HandlerSink(this, source, handler);
list.Add(sink);
// keep the handler alive
AddHandlerToCWT(handler, _cwt);
}
private void PrivateRemoveHandler(ICommand source, EventHandler <EventArgs> handler)
{
// get the list of sinks for this source
List <HandlerSink> list = (List <HandlerSink>) this[source];
if (list != null)
{
HandlerSink sinkToRemove = null;
bool foundDirt = false;
// look for the given sink on the list
foreach (HandlerSink sink in list)
{
if (sink.Matches(source, handler))
{
sinkToRemove = sink;
break;
}
else if (sink.IsInactive)
{
foundDirt = true;
}
}
// remove the sink (outside the loop, to avoid re-entrancy issues)
if (sinkToRemove != null)
{
list.Remove(sinkToRemove);
sinkToRemove.Detach(isOnOriginalThread: true);
RemoveHandlerFromCWT(handler, _cwt);
}
// if we noticed any stale sinks, schedule a purge
if (foundDirt)
{
ScheduleCleanup();
}
}
}
//
// Private Methods
//
private void PrivateAddHandler(ICommand source, EventHandler<EventArgs> handler)
{
// get the list of sinks for this source, creating if necessary
List<HandlerSink> list = (List<HandlerSink>)this[source];
if (list == null)
{
list = new List<HandlerSink>();
this[source] = list;
}
// add a new sink to the list
HandlerSink sink = new HandlerSink(this, source, handler);
list.Add(sink);
// keep the handler alive
AddHandlerToCWT(handler, _cwt);
}