Index: Source/web/WebPageSerializerImpl.h |
diff --git a/Source/web/WebPageSerializerImpl.h b/Source/web/WebPageSerializerImpl.h |
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-/* |
- * Copyright (C) 2009 Google Inc. All rights reserved. |
- * |
- * Redistribution and use in source and binary forms, with or without |
- * modification, are permitted provided that the following conditions are |
- * met: |
- * |
- * * Redistributions of source code must retain the above copyright |
- * notice, this list of conditions and the following disclaimer. |
- * * Redistributions in binary form must reproduce the above |
- * copyright notice, this list of conditions and the following disclaimer |
- * in the documentation and/or other materials provided with the |
- * distribution. |
- * * Neither the name of Google Inc. nor the names of its |
- * contributors may be used to endorse or promote products derived from |
- * this software without specific prior written permission. |
- * |
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
- */ |
- |
-#ifndef WebPageSerializerImpl_h |
-#define WebPageSerializerImpl_h |
- |
-#include "wtf/Forward.h" |
-#include "wtf/HashMap.h" |
-#include "wtf/Vector.h" |
-#include "wtf/text/StringBuilder.h" |
-#include "wtf/text/StringHash.h" |
-#include "wtf/text/WTFString.h" |
- |
-#include "WebEntities.h" |
-#include "WebPageSerializer.h" |
-#include "WebPageSerializerClient.h" |
-#include "public/platform/WebString.h" |
-#include "public/platform/WebURL.h" |
- |
-namespace WTF{ |
-class TextEncoding; |
-} |
- |
-namespace WebCore { |
-class Document; |
-class Element; |
-class Node; |
-} |
- |
-namespace blink { |
-class WebFrameImpl; |
- |
-// Get html data by serializing all frames of current page with lists |
-// which contain all resource links that have local copy. |
-// contain all saved auxiliary files included all sub frames and resources. |
-// This function will find out all frames and serialize them to HTML data. |
-// We have a data buffer to temporary saving generated html data. We will |
-// sequentially call WebViewDelegate::SendSerializedHtmlData once the data |
-// buffer is full. See comments of WebViewDelegate::SendSerializedHtmlData |
-// for getting more information. |
-class WebPageSerializerImpl { |
-public: |
- // Do serialization action. Return false means no available frame has been |
- // serialized, otherwise return true. |
- bool serialize(); |
- |
- // The parameter specifies which frame need to be serialized. |
- // The parameter recursive_serialization specifies whether we need to |
- // serialize all sub frames of the specified frame or not. |
- // The parameter delegate specifies the pointer of interface |
- // DomSerializerDelegate provide sink interface which can receive the |
- // individual chunks of data to be saved. |
- // The parameter links contain original URLs of all saved links. |
- // The parameter local_paths contain corresponding local file paths of all |
- // saved links, which matched with vector:links one by one. |
- // The parameter local_directory_name is relative path of directory which |
- // contain all saved auxiliary files included all sub frames and resources. |
- WebPageSerializerImpl(WebFrame* frame, |
- bool recursive, |
- WebPageSerializerClient* client, |
- const WebVector<WebURL>& links, |
- const WebVector<WebString>& localPaths, |
- const WebString& localDirectoryName); |
- |
-private: |
- // Specified frame which need to be serialized; |
- WebFrameImpl* m_specifiedWebFrameImpl; |
- // Pointer of WebPageSerializerClient |
- WebPageSerializerClient* m_client; |
- // This hash map is used to map resource URL of original link to its local |
- // file path. |
- typedef HashMap<WTF::String, WTF::String> LinkLocalPathMap; |
- // local_links_ include all pair of local resource path and corresponding |
- // original link. |
- LinkLocalPathMap m_localLinks; |
- // Data buffer for saving result of serialized DOM data. |
- StringBuilder m_dataBuffer; |
- // Passing true to recursive_serialization_ indicates we will serialize not |
- // only the specified frame but also all sub-frames in the specific frame. |
- // Otherwise we only serialize the specified frame excluded all sub-frames. |
- bool m_recursiveSerialization; |
- // Flag indicates whether we have collected all frames which need to be |
- // serialized or not; |
- bool m_framesCollected; |
- // Local directory name of all local resource files. |
- WTF::String m_localDirectoryName; |
- // Vector for saving all frames which need to be serialized. |
- Vector<WebFrameImpl*> m_frames; |
- |
- // Web entities conversion maps. |
- WebEntities m_htmlEntities; |
- WebEntities m_xmlEntities; |
- |
- struct SerializeDomParam { |
- const WebCore::KURL& url; |
- const WTF::TextEncoding& textEncoding; |
- WebCore::Document* document; |
- const WTF::String& directoryName; |
- bool isHTMLDocument; // document.isHTMLDocument() |
- bool haveSeenDocType; |
- bool haveAddedCharsetDeclaration; |
- // This meta element need to be skipped when serializing DOM. |
- const WebCore::Element* skipMetaElement; |
- // Flag indicates we are in script or style tag. |
- bool isInScriptOrStyleTag; |
- bool haveAddedXMLProcessingDirective; |
- // Flag indicates whether we have added additional contents before end tag. |
- // This flag will be re-assigned in each call of function |
- // PostActionAfterSerializeOpenTag and it could be changed in function |
- // PreActionBeforeSerializeEndTag if the function adds new contents into |
- // serialization stream. |
- bool haveAddedContentsBeforeEnd; |
- |
- SerializeDomParam(const WebCore::KURL&, const WTF::TextEncoding&, WebCore::Document*, const WTF::String& directoryName); |
- }; |
- |
- // Collect all target frames which need to be serialized. |
- void collectTargetFrames(); |
- // Before we begin serializing open tag of a element, we give the target |
- // element a chance to do some work prior to add some additional data. |
- WTF::String preActionBeforeSerializeOpenTag(const WebCore::Element* element, |
- SerializeDomParam* param, |
- bool* needSkip); |
- // After we finish serializing open tag of a element, we give the target |
- // element a chance to do some post work to add some additional data. |
- WTF::String postActionAfterSerializeOpenTag(const WebCore::Element* element, |
- SerializeDomParam* param); |
- // Before we begin serializing end tag of a element, we give the target |
- // element a chance to do some work prior to add some additional data. |
- WTF::String preActionBeforeSerializeEndTag(const WebCore::Element* element, |
- SerializeDomParam* param, |
- bool* needSkip); |
- // After we finish serializing end tag of a element, we give the target |
- // element a chance to do some post work to add some additional data. |
- WTF::String postActionAfterSerializeEndTag(const WebCore::Element* element, |
- SerializeDomParam* param); |
- // Save generated html content to data buffer. |
- void saveHTMLContentToBuffer(const WTF::String& content, |
- SerializeDomParam* param); |
- |
- enum FlushOption { |
- ForceFlush, |
- DoNotForceFlush, |
- }; |
- |
- // Flushes the content buffer by encoding and sending the content to the |
- // WebPageSerializerClient. Content is not flushed if the buffer is not full |
- // unless force is 1. |
- void encodeAndFlushBuffer(WebPageSerializerClient::PageSerializationStatus status, |
- SerializeDomParam* param, |
- FlushOption); |
- // Serialize open tag of an specified element. |
- void openTagToString(WebCore::Element*, |
- SerializeDomParam* param); |
- // Serialize end tag of an specified element. |
- void endTagToString(WebCore::Element*, |
- SerializeDomParam* param); |
- // Build content for a specified node |
- void buildContentForNode(WebCore::Node*, |
- SerializeDomParam* param); |
-}; |
- |
-} // namespace blink |
- |
-#endif |