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Side by Side Diff: third_party/WebKit/Source/web/WebPageSerializerImpl.h

Issue 1541463002: Rename [Web]PageSerializer[Test|Client|Impl] to ...FrameSerializer... (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@mhtml-deduplication-of-resources
Patch Set: Rebasing... Created 4 years, 11 months ago
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1 /*
2 * Copyright (C) 2009 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 promote 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 WebPageSerializerImpl_h
32 #define WebPageSerializerImpl_h
33
34 #include "wtf/Forward.h"
35 #include "wtf/HashMap.h"
36 #include "wtf/Vector.h"
37 #include "wtf/text/StringBuilder.h"
38 #include "wtf/text/StringHash.h"
39 #include "wtf/text/WTFString.h"
40
41 #include "public/platform/WebString.h"
42 #include "public/platform/WebURL.h"
43 #include "public/web/WebPageSerializer.h"
44 #include "public/web/WebPageSerializerClient.h"
45 #include "web/WebEntities.h"
46
47 namespace WTF {
48 class TextEncoding;
49 }
50
51 namespace blink {
52
53 class Document;
54 class Element;
55 class Node;
56 class WebLocalFrame;
57 class WebLocalFrameImpl;
58
59 // Responsible for serializing the specified frame into html
60 // (replacing links with paths to local files).
61 class WebPageSerializerImpl {
62 STACK_ALLOCATED();
63 public:
64 // Do serialization action.
65 //
66 // Returns false to indicate that no data has been serialized (i.e. because
67 // the target frame didn't have a valid url).
68 //
69 // Synchronously calls WebPageSerializerClient methods to report
70 // serialization results. See WebPageSerializerClient comments for more
71 // details.
72 bool serialize();
73
74 // The parameter specifies which frame need to be serialized.
75 // The parameter delegate specifies the pointer of interface
76 // DomSerializerDelegate provide sink interface which can receive the
77 // individual chunks of data to be saved.
78 // The parameter urlsToLocalPaths contains a mapping between original URLs
79 // of saved resources and corresponding local file paths.
80 WebPageSerializerImpl(
81 WebLocalFrame*,
82 WebPageSerializerClient*,
83 const WebVector<std::pair<WebURL, WebString>>& urlsToLocalPaths);
84
85 private:
86 // Specified frame which need to be serialized;
87 RawPtrWillBeMember<WebLocalFrameImpl> m_specifiedWebLocalFrameImpl;
88 // Pointer of WebPageSerializerClient
89 WebPageSerializerClient* m_client;
90 // This hash map is used to map resource URL of original link to its local
91 // file path.
92 typedef HashMap<WTF::String, WTF::String> LinkLocalPathMap;
93 // local_links_ include all pair of local resource path and corresponding
94 // original link.
95 LinkLocalPathMap m_localLinks;
96 // Data buffer for saving result of serialized DOM data.
97 StringBuilder m_dataBuffer;
98
99 // Web entities conversion maps.
100 WebEntities m_htmlEntities;
101 WebEntities m_xmlEntities;
102
103 class SerializeDomParam {
104 STACK_ALLOCATED();
105 public:
106 SerializeDomParam(const KURL&, const WTF::TextEncoding&, Document*);
107
108 const KURL& url;
109 const WTF::TextEncoding& textEncoding;
110 RawPtrWillBeMember<Document> document;
111 bool isHTMLDocument; // document.isHTMLDocument()
112 bool haveSeenDocType;
113 bool haveAddedCharsetDeclaration;
114 // This meta element need to be skipped when serializing DOM.
115 RawPtrWillBeMember<const Element> skipMetaElement;
116 // Flag indicates we are in script or style tag.
117 bool isInScriptOrStyleTag;
118 bool haveAddedXMLProcessingDirective;
119 // Flag indicates whether we have added additional contents before end t ag.
120 // This flag will be re-assigned in each call of function
121 // PostActionAfterSerializeOpenTag and it could be changed in function
122 // PreActionBeforeSerializeEndTag if the function adds new contents into
123 // serialization stream.
124 bool haveAddedContentsBeforeEnd;
125 };
126
127 // Before we begin serializing open tag of a element, we give the target
128 // element a chance to do some work prior to add some additional data.
129 WTF::String preActionBeforeSerializeOpenTag(const Element*,
130 SerializeDomParam* param,
131 bool* needSkip);
132 // After we finish serializing open tag of a element, we give the target
133 // element a chance to do some post work to add some additional data.
134 WTF::String postActionAfterSerializeOpenTag(const Element*,
135 SerializeDomParam* param);
136 // Before we begin serializing end tag of a element, we give the target
137 // element a chance to do some work prior to add some additional data.
138 WTF::String preActionBeforeSerializeEndTag(const Element*,
139 SerializeDomParam* param,
140 bool* needSkip);
141 // After we finish serializing end tag of a element, we give the target
142 // element a chance to do some post work to add some additional data.
143 WTF::String postActionAfterSerializeEndTag(const Element*,
144 SerializeDomParam* param);
145 // Save generated html content to data buffer.
146 void saveHTMLContentToBuffer(const WTF::String& content,
147 SerializeDomParam* param);
148
149 enum FlushOption {
150 ForceFlush,
151 DoNotForceFlush,
152 };
153
154 // Flushes the content buffer by encoding and sending the content to the
155 // WebPageSerializerClient. Content is not flushed if the buffer is not full
156 // unless force is 1.
157 void encodeAndFlushBuffer(WebPageSerializerClient::PageSerializationStatus s tatus,
158 SerializeDomParam* param,
159 FlushOption);
160 // Serialize open tag of an specified element.
161 void openTagToString(Element*,
162 SerializeDomParam* param);
163 // Serialize end tag of an specified element.
164 void endTagToString(Element*,
165 SerializeDomParam* param);
166 // Build content for a specified node
167 void buildContentForNode(Node*,
168 SerializeDomParam* param);
169 };
170
171 } // namespace blink
172
173 #endif
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