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Side by Side Diff: sky/engine/public/web/WebNode.h

Issue 1210153009: Remove (almost all of) //sky/engine/web (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 5 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.z
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 SKY_ENGINE_PUBLIC_WEB_WEBNODE_H_
32 #define SKY_ENGINE_PUBLIC_WEB_WEBNODE_H_
33
34 #include "../platform/WebCommon.h"
35 #include "../platform/WebPrivatePtr.h"
36 #include "../platform/WebString.h"
37 #include "sky/engine/public/web/WebExceptionCode.h"
38
39 namespace blink {
40
41 class Node;
42 class WebDocument;
43 class WebElement;
44
45 // Provides access to some properties of a DOM node.
46 // Note that the class design requires that neither this class nor any of its su bclasses have any virtual
47 // methods (other than the destructor), so that it is possible to safely static_ cast an instance of one
48 // class to the appropriate subclass based on the actual type of the wrapped bli nk::Node. For the same
49 // reason, subclasses must not add any additional data members.
50 class WebNode {
51 public:
52 virtual ~WebNode() { reset(); }
53
54 WebNode() { }
55 WebNode(const WebNode& n) { assign(n); }
56 WebNode& operator=(const WebNode& n)
57 {
58 assign(n);
59 return *this;
60 }
61
62 BLINK_EXPORT void reset();
63 BLINK_EXPORT void assign(const WebNode&);
64
65 BLINK_EXPORT bool equals(const WebNode&) const;
66 // Required for using WebNodes in std maps. Note the order used is
67 // arbitrary and should not be expected to have any specific meaning.
68 BLINK_EXPORT bool lessThan(const WebNode&) const;
69
70 bool isNull() const { return m_private.isNull(); }
71
72 enum NodeType {
73 ElementNode = 1,
74 TextNode = 3,
75 CDataSectionNode = 4,
76 // EntityReferenceNodes are impossible to create in Blink.
77 // EntityNodes are impossible to create in Blink.
78 ProcessingInstructionsNode = 7,
79 CommentNode = 8,
80 DocumentNode = 9,
81 DocumentTypeNode = 10,
82 DocumentFragmentNode = 11,
83 // NotationNodes are impossible to create in Blink.
84 // XPathNamespaceNodes are impossible to create in Blink.
85 ShadowRootNode = 14
86 };
87
88 BLINK_EXPORT NodeType nodeType() const;
89 BLINK_EXPORT WebNode parentNode() const;
90 BLINK_EXPORT WebString nodeName() const;
91 BLINK_EXPORT WebDocument document() const;
92 BLINK_EXPORT WebNode firstChild() const;
93 BLINK_EXPORT WebNode lastChild() const;
94 BLINK_EXPORT WebNode previousSibling() const;
95 BLINK_EXPORT WebNode nextSibling() const;
96 BLINK_EXPORT bool hasChildNodes() const;
97 BLINK_EXPORT bool isLink() const;
98 BLINK_EXPORT bool isTextNode() const;
99 BLINK_EXPORT bool isFocusable() const;
100 BLINK_EXPORT bool isContentEditable() const;
101 BLINK_EXPORT bool isElementNode() const;
102 BLINK_EXPORT WebElement querySelector(const WebString&, WebExceptionCode&) c onst;
103 BLINK_EXPORT WebElement rootEditableElement() const;
104 BLINK_EXPORT bool focused() const;
105 BLINK_EXPORT bool remove();
106
107 BLINK_EXPORT bool containsIncludingShadowDOM(const WebNode&) const;
108 BLINK_EXPORT WebElement shadowHost() const;
109
110 template<typename T> T to()
111 {
112 T res;
113 res.WebNode::assign(*this);
114 return res;
115 }
116
117 template<typename T> const T toConst() const
118 {
119 T res;
120 res.WebNode::assign(*this);
121 return res;
122 }
123
124 #if BLINK_IMPLEMENTATION
125 WebNode(const PassRefPtr<Node>&);
126 WebNode& operator=(const PassRefPtr<Node>&);
127 operator PassRefPtr<Node>() const;
128 #endif
129
130 #if BLINK_IMPLEMENTATION
131 template<typename T> T* unwrap()
132 {
133 return static_cast<T*>(m_private.get());
134 }
135
136 template<typename T> const T* constUnwrap() const
137 {
138 return static_cast<const T*>(m_private.get());
139 }
140 #endif
141
142 protected:
143 WebPrivatePtr<Node> m_private;
144 };
145
146 inline bool operator==(const WebNode& a, const WebNode& b)
147 {
148 return a.equals(b);
149 }
150
151 inline bool operator!=(const WebNode& a, const WebNode& b)
152 {
153 return !(a == b);
154 }
155
156 inline bool operator<(const WebNode& a, const WebNode& b)
157 {
158 return a.lessThan(b);
159 }
160
161 } // namespace blink
162
163 #endif // SKY_ENGINE_PUBLIC_WEB_WEBNODE_H_
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