function TraceableEventDispatcher::dispatch

File

webprofiler/src/EventDispatcher/TraceableEventDispatcher.php, line 51

Class

TraceableEventDispatcher

Class TraceableEventDispatcher

Namespace

Code

public function dispatch($event_name, Event $event = NULL) {
    if ($event === NULL) {
        $event = new Event();
    }
    $this->preDispatch($event_name, $event);
    $e = $this->stopwatch
        ->start($event_name, 'section');
    if (isset($this->listeners[$event_name])) {
        // Sort listeners if necessary.
        if (isset($this->unsorted[$event_name])) {
            krsort($this->listeners[$event_name]);
            unset($this->unsorted[$event_name]);
        }
        // Invoke listeners and resolve callables if necessary.
        foreach ($this->listeners[$event_name] as $priority => &$definitions) {
            foreach ($definitions as $key => &$definition) {
                if (!isset($definition['callable'])) {
                    $definition['callable'] = [
                        $this->container
                            ->get($definition['service'][0]),
                        $definition['service'][1],
                    ];
                }
                $definition['callable']($event, $event_name, $this);
                $this->addCalledListener($definition, $event_name, $priority);
                if ($event->isPropagationStopped()) {
                    return $event;
                }
            }
        }
    }
    if ($e->isStarted()) {
        $e->stop();
    }
    $this->postDispatch($event_name, $event);
    return $event;
}