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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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