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/*
* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
* Copyright (C) 2007 Samuel Weinig <sam@webkit.org>
* Copyright (C) 2009 Google, Inc. All rights reserved.
*
* 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
*/
#ifndef DOMWrapperWorld_h
#define DOMWrapperWorld_h
#include "Document.h"
#include "JSDOMGlobalObject.h"
#include "JSDOMWrapper.h"
#include <runtime/WeakGCMap.h>
#include <wtf/Forward.h>
namespace WebCore {
class ScriptController;
typedef JSC::WeakGCMap<void*, DOMObject*> DOMObjectWrapperMap;
typedef JSC::WeakGCMap<StringImpl*, JSC::JSString*> JSStringCache;
class DOMWrapperWorld : public RefCounted<DOMWrapperWorld> {
public:
static PassRefPtr<DOMWrapperWorld> create(JSC::JSGlobalData* globalData, bool isNormal = false)
{
return adoptRef(new DOMWrapperWorld(globalData, isNormal));
}
~DOMWrapperWorld();
// Free as much memory held onto by this world as possible.
void clearWrappers();
void didCreateWrapperCache(Document* document) { m_documentsWithWrapperCaches.add(document); }
void didDestroyWrapperCache(Document* document) { m_documentsWithWrapperCaches.remove(document); }
void didCreateWindowShell(ScriptController* scriptController) { m_scriptControllersWithWindowShells.add(scriptController); }
void didDestroyWindowShell(ScriptController* scriptController) { m_scriptControllersWithWindowShells.remove(scriptController); }
// FIXME: can we make this private?
DOMObjectWrapperMap m_wrappers;
JSStringCache m_stringCache;
bool isNormal() const { return m_isNormal; }
protected:
DOMWrapperWorld(JSC::JSGlobalData*, bool isNormal);
private:
JSC::JSGlobalData* m_globalData;
HashSet<Document*> m_documentsWithWrapperCaches;
HashSet<ScriptController*> m_scriptControllersWithWindowShells;
bool m_isNormal;
};
DOMWrapperWorld* normalWorld(JSC::JSGlobalData&);
DOMWrapperWorld* mainThreadNormalWorld();
inline DOMWrapperWorld* debuggerWorld() { return mainThreadNormalWorld(); }
inline DOMWrapperWorld* pluginWorld() { return mainThreadNormalWorld(); }
inline DOMWrapperWorld* currentWorld(JSC::ExecState* exec)
{
return static_cast<JSDOMGlobalObject*>(exec->lexicalGlobalObject())->world();
}
// From Document.h
inline Document::JSWrapperCache* Document::getWrapperCache(DOMWrapperWorld* world)
{
if (world->isNormal()) {
if (Document::JSWrapperCache* wrapperCache = m_normalWorldWrapperCache)
return wrapperCache;
ASSERT(!m_wrapperCacheMap.contains(world));
} else if (Document::JSWrapperCache* wrapperCache = m_wrapperCacheMap.get(world))
return wrapperCache;
return createWrapperCache(world);
}
} // namespace WebCore
#endif // DOMWrapperWorld_h
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