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34 #include "../platform/WebCommon.h"
35 #include "../platform/WebPrivatePtr.h"
36 #include "../platform/WebString.h"
37 #include "WebExceptionCode.h"
45 class WebElementCollection;
47 class WebPluginContainer;
49 // Provides access to some properties of a DOM node.
50 // Note that the class design requires that neither this class nor any of its subclasses have any virtual
51 // methods (other than the destructor), so that it is possible to safely static_cast an instance of one
52 // class to the appropriate subclass based on the actual type of the wrapped blink::Node. For the same
53 // reason, subclasses must not add any additional data members.
56 virtual ~WebNode() { reset(); }
59 WebNode(const WebNode& n) { assign(n); }
60 WebNode& operator=(const WebNode& n)
66 BLINK_EXPORT void reset();
67 BLINK_EXPORT void assign(const WebNode&);
69 BLINK_EXPORT bool equals(const WebNode&) const;
70 // Required for using WebNodes in std maps. Note the order used is
71 // arbitrary and should not be expected to have any specific meaning.
72 BLINK_EXPORT bool lessThan(const WebNode&) const;
74 bool isNull() const { return m_private.isNull(); }
81 // EntityReferenceNodes are impossible to create in Blink.
82 // EntityNodes are impossible to create in Blink.
83 ProcessingInstructionsNode = 7,
86 DocumentTypeNode = 10,
87 DocumentFragmentNode = 11,
88 // NotationNodes are impossible to create in Blink.
89 // XPathNamespaceNodes are impossible to create in Blink.
93 BLINK_EXPORT NodeType nodeType() const;
94 BLINK_EXPORT WebNode parentNode() const;
95 BLINK_EXPORT WebString nodeName() const;
96 BLINK_EXPORT WebString nodeValue() const;
97 BLINK_EXPORT WebDocument document() const;
98 BLINK_EXPORT WebNode firstChild() const;
99 BLINK_EXPORT WebNode lastChild() const;
100 BLINK_EXPORT WebNode previousSibling() const;
101 BLINK_EXPORT WebNode nextSibling() const;
102 BLINK_EXPORT bool hasChildNodes() const;
103 BLINK_EXPORT WebNodeList childNodes();
104 BLINK_EXPORT WebString createMarkup() const;
105 BLINK_EXPORT bool isLink() const;
106 BLINK_EXPORT bool isTextNode() const;
107 BLINK_EXPORT bool isFocusable() const;
108 BLINK_EXPORT bool isContentEditable() const;
109 BLINK_EXPORT bool isElementNode() const;
110 BLINK_EXPORT bool dispatchEvent(const WebDOMEvent&);
111 BLINK_EXPORT void simulateClick();
112 // The argument should be lower-cased.
113 BLINK_EXPORT WebElementCollection getElementsByHTMLTagName(const WebString&) const;
114 BLINK_EXPORT WebElement querySelector(const WebString&, WebExceptionCode&) const;
115 BLINK_EXPORT WebElement rootEditableElement() const;
116 BLINK_EXPORT bool focused() const;
117 BLINK_EXPORT bool remove();
119 // Returns true if the node has a non-empty bounding box in layout.
120 // This does not 100% guarantee the user can see it, but is pretty close.
121 // Note: This method only works properly after layout has occurred.
122 BLINK_EXPORT bool hasNonEmptyBoundingBox() const;
124 BLINK_EXPORT bool containsIncludingShadowDOM(const WebNode&) const;
125 BLINK_EXPORT WebPluginContainer* pluginContainer() const;
126 BLINK_EXPORT WebElement shadowHost() const;
128 template<typename T> T to()
131 res.WebNode::assign(*this);
135 template<typename T> const T toConst() const
138 res.WebNode::assign(*this);
142 #if BLINK_IMPLEMENTATION
143 WebNode(const PassRefPtrWillBeRawPtr<Node>&);
144 WebNode& operator=(const PassRefPtrWillBeRawPtr<Node>&);
145 operator PassRefPtrWillBeRawPtr<Node>() const;
148 #if BLINK_IMPLEMENTATION
149 template<typename T> T* unwrap()
151 return static_cast<T*>(m_private.get());
154 template<typename T> const T* constUnwrap() const
156 return static_cast<const T*>(m_private.get());
161 WebPrivatePtr<Node> m_private;
164 inline bool operator==(const WebNode& a, const WebNode& b)
169 inline bool operator!=(const WebNode& a, const WebNode& b)
174 inline bool operator<(const WebNode& a, const WebNode& b)
176 return a.lessThan(b);