Home | History | Annotate | Download | only in history 
      1 /*
      2  * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef CachedFrame_h
     27 #define CachedFrame_h
     28 
     29 #include "KURL.h"
     30 #include "ScriptCachedFrameData.h"
     31 #include <wtf/PassOwnPtr.h>
     32 #include <wtf/RefPtr.h>
     33 
     34 namespace WebCore {
     35 
     36 class CachedFrame;
     37 class CachedFramePlatformData;
     38 class Document;
     39 class DocumentLoader;
     40 class FrameView;
     41 class Node;
     42 
     43 typedef Vector<RefPtr<CachedFrame> > CachedFrameVector;
     44 
     45 class CachedFrameBase {
     46 public:
     47     void restore();
     48 
     49     Document* document() const { return m_document.get(); }
     50     FrameView* view() const { return m_view.get(); }
     51     const KURL& url() const { return m_url; }
     52     DOMWindow* domWindow() const { return m_cachedFrameScriptData->domWindow(); }
     53     bool isMainFrame() { return m_isMainFrame; }
     54 
     55 protected:
     56     CachedFrameBase(Frame*);
     57     ~CachedFrameBase();
     58 
     59     RefPtr<Document> m_document;
     60     RefPtr<DocumentLoader> m_documentLoader;
     61     RefPtr<FrameView> m_view;
     62     RefPtr<Node> m_mousePressNode;
     63     KURL m_url;
     64     OwnPtr<ScriptCachedFrameData> m_cachedFrameScriptData;
     65     OwnPtr<CachedFramePlatformData> m_cachedFramePlatformData;
     66     bool m_isMainFrame;
     67 
     68     CachedFrameVector m_childFrames;
     69 };
     70 
     71 class CachedFrame : public RefCounted<CachedFrame>, private CachedFrameBase {
     72 public:
     73     static PassRefPtr<CachedFrame> create(Frame* frame) { return adoptRef(new CachedFrame(frame)); }
     74 
     75     void open();
     76     void clear();
     77     void destroy();
     78 
     79     void setCachedFramePlatformData(PassOwnPtr<CachedFramePlatformData>);
     80     CachedFramePlatformData* cachedFramePlatformData();
     81 
     82     using CachedFrameBase::document;
     83     using CachedFrameBase::view;
     84     using CachedFrameBase::url;
     85     DocumentLoader* documentLoader() const { return m_documentLoader.get(); }
     86     Node* mousePressNode() const { return m_mousePressNode.get(); }
     87 
     88     int descendantFrameCount() const;
     89 
     90 private:
     91     CachedFrame(Frame*);
     92 };
     93 
     94 } // namespace WebCore
     95 
     96 #endif // CachedFrame_h
     97