/// <summary> /// Dispatches the given event against the given node. /// </summary> /// <param name="node"></param> /// <param name="eventType"></param> void DispatchEvent(XNode node, string eventType) { Contract.Requires<ArgumentNullException>(node != null); Contract.Requires<ArgumentNullException>(node.Document != null); Contract.Requires<ArgumentNullException>(eventType != null); node.Interface<EventTarget>().Dispatch(CreateEvent(node, eventType)); }
/// <summary> /// Invokes the applicable listeners for this node. /// </summary> /// <param name="node"></param> /// <param name="evt"></param> void InvokeListeners(XNode node, Event evt) { Contract.Requires<ArgumentNullException>(node != null); Contract.Requires<ArgumentNullException>(evt != null); // Initialize event's currentTarget attribute to the object for which these steps are run. evt.currentTarget = node; // invoke registered listeners foreach (var registration in node.Interface<EventTarget>().state.registrations) { // If event's stop immediate propagation flag is set, terminate the invoke algorithm. if (evt.stopImmediatePropagation) return; // If event's type attribute value is not listener's type, terminate these substeps (and run them for // the next event listener). if (evt.type != registration.EventType) continue; // If event's eventPhase attribute value is CAPTURING_PHASE and listener's capture is false, terminate // these substeps (and run them for the next event listener). if (evt.eventPhase == EventPhase.Capturing && registration.Capture == false) continue; // If event's eventPhase attribute value is BUBBLING_PHASE and listener's capture is true, terminate // these substeps (and run them for the next event listener). if (evt.eventPhase == EventPhase.Bubbling && registration.Capture == true) continue; // Call listener's callback's handleEvent, with the event passed to this algorithm as the first // argument and event's currentTarget attribute value as callback this value. invoker.Invoke(() => registration.Listener.HandleEvent(evt)); } // invoke listeners available directly as interfaces foreach (var listener in node.Interfaces<IEventListener>()) { // If event's stop immediate propagation flag is set, terminate the invoke algorithm. if (evt.stopImmediatePropagation) return; invoker.Invoke(() => listener.HandleEvent(evt)); } }