1/* 2 * Copyright (C) 2011 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promo te products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#ifndef PageSerializer_h 32#define PageSerializer_h 33 34#include "URL.h" 35#include "URLHash.h" 36#include "SharedBuffer.h" 37#include <wtf/HashMap.h> 38#include <wtf/ListHashSet.h> 39#include <wtf/Vector.h> 40 41namespace WebCore { 42 43class CachedImage; 44class CSSStyleSheet; 45class Document; 46class Frame; 47class Page; 48class RenderElement; 49class StyleProperties; 50class StyleRule; 51 52// This class is used to serialize a page contents back to text (typically HTML). 53// It serializes all the page frames and retrieves resources such as images and CSS stylesheets. 54class PageSerializer { 55public: 56 struct Resource { 57 URL url; 58 String mimeType; 59 RefPtr<SharedBuffer> data; 60 Resource(); 61 Resource(const URL&, const String& mimeType, PassRefPtr<SharedBuffer> data); 62 }; 63 64 explicit PageSerializer(Vector<Resource>*); 65 66 // Initiates the serialization of the frame's page. All serialized content and retrieved 67 // resources are added to the Vector passed to the constructor. The first resource in that 68 // vector is the top frame serialized content. 69 void serialize(Page*); 70 71 URL urlForBlankFrame(Frame*); 72 73private: 74 void serializeFrame(Frame*); 75 76 // Serializes the stylesheet back to text and adds it to the resources if URL is not-empty. 77 // It also adds any resources included in that stylesheet (including any imported stylesheets and their own resources). 78 void serializeCSSStyleSheet(CSSStyleSheet*, const URL&); 79 80 void addImageToResources(CachedImage*, RenderElement*, const URL&); 81 void retrieveResourcesForProperties(const StyleProperties*, Document*); 82 void retrieveResourcesForRule(StyleRule*, Document*); 83 84 Vector<Resource>* m_resources; 85 ListHashSet<URL> m_resourceURLs; 86 HashMap<Frame*, URL> m_blankFrameURLs; 87 unsigned m_blankFrameCounter; 88}; 89 90} 91 92#endif 93