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/*
* Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
* 1999-2001 Lars Knoll <knoll@kde.org>
* 1999-2001 Antti Koivisto <koivisto@kde.org>
* 2000-2001 Simon Hausmann <hausmann@kde.org>
* 2000-2001 Dirk Mueller <mueller@kde.org>
* 2000 Stefan Schimanski <1Stein@gmx.de>
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
* Copyright (C) 2008 Eric Seidel <eric@webkit.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef Frame_h
#define Frame_h
#include "core/page/FrameTree.h"
#include "platform/heap/Handle.h"
#include "wtf/Forward.h"
#include "wtf/HashSet.h"
#include "wtf/RefCounted.h"
namespace blink {
class WebLayer;
}
namespace WebCore {
class ChromeClient;
class FrameClient;
class FrameDestructionObserver;
class FrameHost;
class FrameOwner;
class HTMLFrameOwnerElement;
class LocalDOMWindow;
class Page;
class RenderPart;
class Settings;
class Frame : public RefCounted<Frame> {
public:
virtual bool isLocalFrame() const { return false; }
virtual bool isRemoteFrame() const { return false; }
virtual ~Frame();
void addDestructionObserver(FrameDestructionObserver*);
void removeDestructionObserver(FrameDestructionObserver*);
virtual void willDetachFrameHost();
virtual void detachFromFrameHost();
FrameClient* client() const;
void clearClient();
// NOTE: Page is moving out of Blink up into the browser process as
// part of the site-isolation (out of process iframes) work.
// FrameHost should be used instead where possible.
Page* page() const;
FrameHost* host() const; // Null when the frame is detached.
bool isMainFrame() const;
virtual void disconnectOwnerElement();
FrameOwner* owner() const;
HTMLFrameOwnerElement* deprecatedLocalOwner() const;
// FIXME: LocalDOMWindow and Document should both be moved to LocalFrame
// after RemoteFrame is complete enough to exist without them.
virtual void setDOMWindow(PassRefPtrWillBeRawPtr<LocalDOMWindow>);
LocalDOMWindow* domWindow() const;
FrameTree& tree() const;
ChromeClient& chromeClient() const;
RenderPart* ownerRenderer() const; // Renderer for the element that contains this frame.
// FIXME: These should move to RemoteFrame when that is instantiated.
void setRemotePlatformLayer(blink::WebLayer* remotePlatformLayer) { m_remotePlatformLayer = remotePlatformLayer; }
blink::WebLayer* remotePlatformLayer() const { return m_remotePlatformLayer; }
Settings* settings() const; // can be null
// FIXME: This method identifies a LocalFrame that is acting as a RemoteFrame.
// It is necessary only until we can instantiate a RemoteFrame, at which point
// it can be removed and its callers can be converted to use the isRemoteFrame()
// method.
bool isRemoteFrameTemporary() const { return m_remotePlatformLayer; }
protected:
Frame(FrameClient*, FrameHost*, FrameOwner*);
mutable FrameTree m_treeNode;
FrameHost* m_host;
FrameOwner* m_owner;
RefPtrWillBePersistent<LocalDOMWindow> m_domWindow;
private:
FrameClient* m_client;
HashSet<FrameDestructionObserver*> m_destructionObservers;
blink::WebLayer* m_remotePlatformLayer;
};
inline FrameClient* Frame::client() const
{
return m_client;
}
inline void Frame::clearClient()
{
m_client = 0;
}
inline LocalDOMWindow* Frame::domWindow() const
{
return m_domWindow.get();
}
inline FrameOwner* Frame::owner() const
{
return m_owner;
}
inline FrameTree& Frame::tree() const
{
return m_treeNode;
}
// Allow equality comparisons of Frames by reference or pointer, interchangeably.
DEFINE_COMPARISON_OPERATORS_WITH_REFERENCES_REFCOUNTED(Frame)
} // namespace WebCore
#endif // Frame_h
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