1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
/*
* 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 THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_WEB_FRAME_SERIALIZER_IMPL_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_FRAME_WEB_FRAME_SERIALIZER_IMPL_H_
#include "third_party/blink/public/platform/web_string.h"
#include "third_party/blink/public/platform/web_url.h"
#include "third_party/blink/public/web/web_frame_serializer.h"
#include "third_party/blink/public/web/web_frame_serializer_client.h"
#include "third_party/blink/renderer/platform/text/web_entities.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"
#include "third_party/blink/renderer/platform/wtf/hash_map.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
#include "third_party/blink/renderer/platform/wtf/text/string_hash.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace WTF {
class TextEncoding;
}
namespace blink {
class Document;
class Element;
class Node;
class WebLocalFrame;
class WebLocalFrameImpl;
// Responsible for serializing the specified frame into html
// (replacing links with paths to local files).
class WebFrameSerializerImpl {
STACK_ALLOCATED();
public:
// Do serialization action.
//
// Returns false to indicate that no data has been serialized (i.e. because
// the target frame didn't have a valid url).
//
// Synchronously calls WebFrameSerializerClient methods to report
// serialization results. See WebFrameSerializerClient comments for more
// details.
bool Serialize();
// The parameter specifies which frame need to be serialized.
// The parameter delegate specifies the pointer of interface
// DomSerializerDelegate provide sink interface which can receive the
// individual chunks of data to be saved.
WebFrameSerializerImpl(WebLocalFrame*,
WebFrameSerializerClient*,
WebFrameSerializer::LinkRewritingDelegate*,
bool);
private:
// Specified frame which need to be serialized;
Member<WebLocalFrameImpl> specified_web_local_frame_impl_;
// Pointer of WebFrameSerializerClient
WebFrameSerializerClient* client_;
// Pointer of WebFrameSerializer::LinkRewritingDelegate
WebFrameSerializer::LinkRewritingDelegate* delegate_;
// Data buffer for saving result of serialized DOM data.
StringBuilder data_buffer_;
// Whether frame url should be shown in MOTW in the serialized html.
bool save_with_empty_url_;
// Web entities conversion maps.
WebEntities html_entities_;
WebEntities xml_entities_;
class SerializeDomParam {
STACK_ALLOCATED();
public:
SerializeDomParam(const KURL&, const WTF::TextEncoding&, Document*);
const KURL& url;
const WTF::TextEncoding& text_encoding;
Member<Document> document;
bool is_html_document; // document.isHTMLDocument()
bool have_seen_doc_type;
bool have_added_charset_declaration;
// This meta element need to be skipped when serializing DOM.
Member<const Element> skip_meta_element;
bool have_added_xml_processing_directive;
// 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 have_added_contents_before_end;
};
// 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 Element*,
SerializeDomParam*,
bool* need_skip);
// 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 Element*,
SerializeDomParam*);
// 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 Element*,
SerializeDomParam*,
bool* need_skip);
// 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 Element*,
SerializeDomParam*);
// Save generated html content to data buffer.
void SaveHTMLContentToBuffer(const WTF::String& content, SerializeDomParam*);
enum FlushOption {
kForceFlush,
kDoNotForceFlush,
};
// Flushes the content buffer by encoding and sending the content to the
// WebFrameSerializerClient. Content is not flushed if the buffer is not full
// unless force is 1.
void EncodeAndFlushBuffer(WebFrameSerializerClient::FrameSerializationStatus,
SerializeDomParam*,
FlushOption);
// Serialize open tag of an specified element.
void OpenTagToString(Element*, SerializeDomParam*);
// Serialize end tag of an specified element.
void EndTagToString(Element*, SerializeDomParam*);
// Build content for a specified node
void BuildContentForNode(Node*, SerializeDomParam*);
// Appends attrName="escapedAttrValue" to result.
void AppendAttribute(StringBuilder& result,
bool is_html_document,
const String& attr_name,
const String& attr_value);
};
} // namespace blink
#endif
|
