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/*
* Copyright (C) 2010 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config.h"
#include "GObjectEventListener.h"
#include "Event.h"
#include "EventListener.h"
#include "webkit/WebKitDOMEvent.h"
#include "webkit/WebKitDOMEventPrivate.h"
#include <glib-object.h>
#include <glib.h>
#include <wtf/HashMap.h>
namespace WebCore {
GObjectEventListener::GObjectEventListener(GObject* object, DOMWindow* window, Node* node, const char* domEventName, const char* signalName)
: EventListener(GObjectEventListenerType)
, m_object(object)
, m_coreNode(node)
, m_coreWindow(window)
, m_domEventName(domEventName)
, m_signalName(signalName)
{
ASSERT(!m_coreWindow || !m_coreNode);
g_object_weak_ref(object, reinterpret_cast<GWeakNotify>(GObjectEventListener::gobjectDestroyedCallback), this);
}
GObjectEventListener::~GObjectEventListener()
{
if (!m_coreWindow && !m_coreNode)
return;
g_object_weak_unref(m_object, reinterpret_cast<GWeakNotify>(GObjectEventListener::gobjectDestroyedCallback), this);
}
void GObjectEventListener::gobjectDestroyed()
{
ASSERT(!m_coreWindow || !m_coreNode);
// We must set m_coreWindow and m_coreNode to null, because removeEventListener may call the
// destructor as a side effect and we must be in the proper state to prevent g_object_weak_unref.
if (DOMWindow* window = m_coreWindow) {
m_coreWindow = 0;
window->removeEventListener(m_domEventName.data(), this, false);
return;
}
Node* node = m_coreNode;
m_coreNode = 0; // See above.
node->removeEventListener(m_domEventName.data(), this, false);
}
void GObjectEventListener::handleEvent(ScriptExecutionContext*, Event* event)
{
gboolean handled = FALSE;
WebKitDOMEvent* gobjectEvent = WEBKIT_DOM_EVENT(WebKit::kit(event));
g_signal_emit_by_name(m_object, m_signalName.data(), gobjectEvent, &handled);
g_object_unref(gobjectEvent);
}
bool GObjectEventListener::operator==(const EventListener& listener)
{
if (const GObjectEventListener* gobjectEventListener = GObjectEventListener::cast(&listener))
return m_signalName == gobjectEventListener->m_signalName && m_object == gobjectEventListener->m_object;
return false;
}
}
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