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/*
* Copyright (C) 2012 Victor Carbune (victor@rosedu.org)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "GenericEventQueue.h"
#include "Event.h"
#include "EventTarget.h"
namespace WebCore {
GenericEventQueue::GenericEventQueue(EventTarget& owner)
: m_owner(owner)
, m_timer(this, &GenericEventQueue::timerFired)
, m_isClosed(false)
{
}
GenericEventQueue::~GenericEventQueue()
{
}
bool GenericEventQueue::enqueueEvent(PassRefPtr<Event> event)
{
if (m_isClosed)
return false;
if (event->target() == &m_owner)
event->setTarget(0);
m_pendingEvents.append(event);
if (!m_timer.isActive())
m_timer.startOneShot(0);
return true;
}
void GenericEventQueue::timerFired(Timer<GenericEventQueue>&)
{
ASSERT(!m_timer.isActive());
ASSERT(!m_pendingEvents.isEmpty());
Vector<RefPtr<Event>> pendingEvents;
m_pendingEvents.swap(pendingEvents);
Ref<EventTarget> protect(m_owner);
for (unsigned i = 0; i < pendingEvents.size(); ++i) {
EventTarget& target = pendingEvents[i]->target() ? *pendingEvents[i]->target() : m_owner;
target.dispatchEvent(pendingEvents[i].release());
}
}
void GenericEventQueue::close()
{
m_isClosed = true;
m_timer.stop();
m_pendingEvents.clear();
}
void GenericEventQueue::cancelAllEvents()
{
m_timer.stop();
m_pendingEvents.clear();
}
bool GenericEventQueue::hasPendingEvents() const
{
return m_pendingEvents.size();
}
}
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