예제 #1
0
static bool removeListenerFromVector(EventListenerVector& listeners, EventListener& listener, bool useCapture)
{
    size_t indexOfRemovedListener = findListener(listeners, listener, useCapture);
    if (UNLIKELY(indexOfRemovedListener == notFound))
        return false;

    listeners[indexOfRemovedListener]->markAsRemoved();
    listeners.remove(indexOfRemovedListener);
    return true;
}
예제 #2
0
bool EventTarget::removeEventListener(const AtomicString& eventType, EventListener* listener, bool useCapture)
{
    EventTargetData* d = eventTargetData();
    if (!d)
        return false;

    EventListenerMap::iterator result = d->eventListenerMap.find(eventType);
    if (result == d->eventListenerMap.end())
        return false;
    EventListenerVector* entry = result->second;

    RegisteredEventListener registeredListener(listener, useCapture);
    size_t index = entry->find(registeredListener);
    if (index == notFound)
        return false;

    entry->remove(index);
    if (entry->isEmpty()) {
        delete entry;
        d->eventListenerMap.remove(result);
    }

    // Notify firing events planning to invoke the listener at 'index' that
    // they have one less listener to invoke.
    for (size_t i = 0; i < d->firingEventIterators.size(); ++i) {
        if (eventType != d->firingEventIterators[i].eventType)
            continue;

        if (index >= d->firingEventIterators[i].end)
            continue;

        --d->firingEventIterators[i].end;
        if (index <= d->firingEventIterators[i].iterator)
            --d->firingEventIterators[i].iterator;
    }

    return true;
}