1/*
2 * Copyright (C) 2009, 2010, 2013 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 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 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 "DOMWindow.h"
30#include "URL.h"
31#include "ScriptCachedFrameData.h"
32#include <wtf/RefPtr.h>
33
34namespace WebCore {
35
36class CachedFrame;
37class CachedFramePlatformData;
38class Document;
39class DocumentLoader;
40class FrameView;
41class Node;
42
43class CachedFrameBase {
44public:
45    void restore();
46
47    Document* document() const { return m_document.get(); }
48    FrameView* view() const { return m_view.get(); }
49    const URL& url() const { return m_url; }
50    bool isMainFrame() { return m_isMainFrame; }
51
52protected:
53    CachedFrameBase(Frame&);
54    ~CachedFrameBase();
55
56    RefPtr<Document> m_document;
57    RefPtr<DocumentLoader> m_documentLoader;
58    RefPtr<FrameView> m_view;
59    URL m_url;
60    std::unique_ptr<ScriptCachedFrameData> m_cachedFrameScriptData;
61    std::unique_ptr<CachedFramePlatformData> m_cachedFramePlatformData;
62    bool m_isMainFrame;
63    bool m_isComposited;
64
65    Vector<std::unique_ptr<CachedFrame>> m_childFrames;
66};
67
68class CachedFrame : private CachedFrameBase {
69public:
70    explicit CachedFrame(Frame&);
71
72    void open();
73    void clear();
74    void destroy();
75
76    void setCachedFramePlatformData(std::unique_ptr<CachedFramePlatformData>);
77    CachedFramePlatformData* cachedFramePlatformData();
78
79    using CachedFrameBase::document;
80    using CachedFrameBase::view;
81    using CachedFrameBase::url;
82    DocumentLoader* documentLoader() const { return m_documentLoader.get(); }
83
84    int descendantFrameCount() const;
85};
86
87} // namespace WebCore
88
89#endif // CachedFrame_h
90