////////////////////////////////////////////////////////////////////////
// ProcessOneTrigger
//
// Find the target element for this trigger, and set a listener for
// the event into (pointing back to the trigger).
internal static void ProcessOneTrigger(FrameworkElement triggersHost, TriggerBase triggerBase)
{
// This code path is used in the element trigger case. We don't actually
// need these guys to be usable cross-thread, so we don't really need
// to freeze/seal these objects. The only one expected to cause problems
// is a change to the RoutedEvent. At the same time we remove this
// Seal(), the RoutedEvent setter will check to see if the handler has
// already been created and refuse an update if so.
// triggerBase.Seal();
EventTrigger eventTrigger = triggerBase as EventTrigger;
if (eventTrigger != null)
{
Debug.Assert(eventTrigger._routedEventHandler == null && eventTrigger._source == null);
// PERF: Cache this result if it turns out we're doing a lot of lookups on the same name.
eventTrigger._source = FrameworkElement.FindNamedFrameworkElement(triggersHost, eventTrigger.SourceName);
// Create a statefull event delegate (which keeps a ref to the FE).
EventTriggerSourceListener listener = new EventTriggerSourceListener(eventTrigger, triggersHost);
// Store the RoutedEventHandler & target for use in DisconnectOneTrigger
eventTrigger._routedEventHandler = new RoutedEventHandler(listener.Handler);
eventTrigger._source.AddHandler(eventTrigger.RoutedEvent, eventTrigger._routedEventHandler,
false /* HandledEventsToo */);
}
else
{
throw new InvalidOperationException(SR.Get(SRID.TriggersSupportsEventTriggersOnly));
}
}
// Token: 0x060003F6 RID: 1014 RVA: 0x0000B538 File Offset: 0x00009738
internal static void ProcessOneTrigger(FrameworkElement triggersHost, TriggerBase triggerBase)
{
EventTrigger eventTrigger = triggerBase as EventTrigger;
if (eventTrigger != null)
{
eventTrigger._source = FrameworkElement.FindNamedFrameworkElement(triggersHost, eventTrigger.SourceName);
EventTrigger.EventTriggerSourceListener @object = new EventTrigger.EventTriggerSourceListener(eventTrigger, triggersHost);
eventTrigger._routedEventHandler = new RoutedEventHandler(@object.Handler);
eventTrigger._source.AddHandler(eventTrigger.RoutedEvent, eventTrigger._routedEventHandler, false);
return;
}
throw new InvalidOperationException(SR.Get("TriggersSupportsEventTriggersOnly"));
}
