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/*
* Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2006-2018 Apple 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
*/
#pragma once
#include <JavaScriptCore/Strong.h>
#include <wtf/HashMap.h>
#include <wtf/RefCounted.h>
#include <wtf/UniqueRef.h>
#include <wtf/WeakPtr.h>
namespace JSC {
class Debugger;
}
namespace WebCore {
class DOMWindow;
class DOMWrapperWorld;
class Frame;
class JSDOMGlobalObject;
class JSWindowProxy;
class WindowProxy : public RefCounted<WindowProxy> {
WTF_MAKE_FAST_ALLOCATED;
public:
using ProxyMap = HashMap<RefPtr<DOMWrapperWorld>, JSC::Strong<JSWindowProxy>>;
static Ref<WindowProxy> create(Frame& frame)
{
return adoptRef(*new WindowProxy(frame));
}
WEBCORE_EXPORT ~WindowProxy();
WEBCORE_EXPORT Frame* frame() const;
void detachFromFrame();
void replaceFrame(Frame&);
void destroyJSWindowProxy(DOMWrapperWorld&);
ProxyMap::ValuesConstIteratorRange jsWindowProxies() const;
Vector<JSC::Strong<JSWindowProxy>> jsWindowProxiesAsVector() const;
WEBCORE_EXPORT ProxyMap releaseJSWindowProxies();
WEBCORE_EXPORT void setJSWindowProxies(ProxyMap&&);
JSWindowProxy* jsWindowProxy(DOMWrapperWorld& world)
{
if (!m_frame)
return nullptr;
if (auto* existingProxy = existingJSWindowProxy(world))
return existingProxy;
return &createJSWindowProxyWithInitializedScript(world);
}
JSWindowProxy* existingJSWindowProxy(DOMWrapperWorld& world) const
{
auto it = m_jsWindowProxies->find(&world);
return (it != m_jsWindowProxies->end()) ? it->value.get() : nullptr;
}
WEBCORE_EXPORT JSDOMGlobalObject* globalObject(DOMWrapperWorld&);
void clearJSWindowProxiesNotMatchingDOMWindow(DOMWindow*, bool goingIntoBackForwardCache);
WEBCORE_EXPORT void setDOMWindow(DOMWindow*);
// Debugger can be nullptr to detach any existing Debugger.
void attachDebugger(JSC::Debugger*); // Attaches/detaches in all worlds/window proxies.
WEBCORE_EXPORT DOMWindow* window() const;
private:
explicit WindowProxy(Frame&);
JSWindowProxy& createJSWindowProxy(DOMWrapperWorld&);
WEBCORE_EXPORT JSWindowProxy& createJSWindowProxyWithInitializedScript(DOMWrapperWorld&);
WeakPtr<Frame> m_frame;
UniqueRef<ProxyMap> m_jsWindowProxies;
};
} // namespace WebCore
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