Class DomNode
- java.lang.Object
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- org.htmlunit.html.DomNode
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- All Implemented Interfaces:
java.io.Serializable,java.lang.Cloneable,org.w3c.dom.Node
- Direct Known Subclasses:
DomCharacterData,DomDocumentFragment,DomDocumentType,DomNamespaceNode,DomProcessingInstruction,SgmlPage
public abstract class DomNode extends java.lang.Object implements java.lang.Cloneable, java.io.Serializable, org.w3c.dom.NodeBase class for nodes in the HTML DOM tree. This class is modeled after the W3C DOM specification, but does not implement it.- See Also:
- Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description protected static classDomNode.ChildIteratorAn iterator over all children of this node.protected classDomNode.DescendantElementsIterator<T extends DomNode>Iterates over all descendants of a specific type, in document order.
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Field Summary
Fields Modifier and Type Field Description static java.lang.StringPROPERTY_ELEMENTThe name of the "element" property.static java.lang.StringREADY_STATE_COMPLETEA ready state constant for IE (state 5).static java.lang.StringREADY_STATE_INTERACTIVEA ready state constant for IE (state 4).static java.lang.StringREADY_STATE_LOADEDA ready state constant for IE (state 3).static java.lang.StringREADY_STATE_LOADINGA ready state constant for IE (state 2).static java.lang.StringREADY_STATE_UNINITIALIZEDA ready state constant for IE (state 1).-
Fields inherited from interface org.w3c.dom.Node
ATTRIBUTE_NODE, CDATA_SECTION_NODE, COMMENT_NODE, DOCUMENT_FRAGMENT_NODE, DOCUMENT_NODE, DOCUMENT_POSITION_CONTAINED_BY, DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_PRECEDING, DOCUMENT_TYPE_NODE, ELEMENT_NODE, ENTITY_NODE, ENTITY_REFERENCE_NODE, NOTATION_NODE, PROCESSING_INSTRUCTION_NODE, TEXT_NODE
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidaddCharacterDataChangeListener(CharacterDataChangeListener listener)Adds aCharacterDataChangeListenerto the listener list.voidaddDomChangeListener(DomChangeListener listener)Adds aDomChangeListenerto the listener list.DomNodeappendChild(org.w3c.dom.Node node)java.lang.StringasNormalizedText()Returns a normalized textual representation of this element that represents what would be visible to the user if this page was shown in a web browser.java.lang.StringasXml()Returns a string representation of the XML document from this element and all it's children (recursively).protected voidbasicRemove()Cuts off all relationships this node has with siblings and parents.protected voidcheckChildHierarchy(org.w3c.dom.Node newChild)Check for insertion errors for a new child node.DomNodecloneNode(boolean deep)DomElementclosest(java.lang.String selectorString)shortcompareDocumentPosition(org.w3c.dom.Node other)protected voiddetach()INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Detach this node from all relationships with other nodes.protected voidfireCharacterDataChanged(CharacterDataChangeEvent event)Support for reporting Character Data changes.protected voidfireNodeAdded(DomChangeEvent event)Support for reporting DOM changes.protected voidfireNodeDeleted(DomChangeEvent event)Support for reporting DOM changes.java.util.List<org.w3c.dom.Node>getAncestors()INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Gets the ancestors of the node.org.w3c.dom.NamedNodeMapgetAttributes()java.lang.StringgetBaseURI()<T> java.util.List<T>getByXPath(java.lang.String xpathExpr)Evaluates the specified XPath expression from this node, returning the matching elements.java.util.List<?>getByXPath(java.lang.String xpathExpr, org.htmlunit.xpath.xml.utils.PrefixResolver resolver)Evaluates the specified XPath expression from this node, returning the matching elements.java.lang.StringgetCanonicalXPath()Returns the canonical XPath expression which identifies this node, for instance"/html/body/table[3]/tbody/tr[5]/td[2]/span/a[3]".DomNodeList<DomNode>getChildNodes()java.lang.Iterable<DomNode>getChildren()java.lang.Iterable<DomNode>getDescendants()Returns anIterablethat will recursively iterate over all of this node's descendants, includingDomTextelements,DomCommentelements, etc.java.lang.Iterable<DomElement>getDomElementDescendants()Returns anIterablethat will recursively iterate over all of this node'sDomElementdescendants.intgetEndColumnNumber()Returns the column number in the source page where the DOM node ends.intgetEndLineNumber()Returns the line number in the source page where the DOM node ends.java.lang.ObjectgetFeature(java.lang.String feature, java.lang.String version)Not yet implemented.<X> XgetFirstByXPath(java.lang.String xpathExpr)Evaluates the specified XPath expression from this node, returning the first matching element, ornullif no node matches the specified XPath expression.<X> XgetFirstByXPath(java.lang.String xpathExpr, org.htmlunit.xpath.xml.utils.PrefixResolver resolver)Evaluates the specified XPath expression from this node, returning the first matching element, ornullif no node matches the specified XPath expression.DomNodegetFirstChild()java.lang.Iterable<HtmlElement>getHtmlElementDescendants()Returns anIterablethat will recursively iterate over all of this node'sHtmlElementdescendants.HtmlPagegetHtmlPageOrNull()Returns the page that contains this node.intgetIndex()Returns this node's index within its parent's child nodes (zero-based).DomNodegetLastChild()java.lang.StringgetLocalName()java.lang.StringgetNamespaceURI()DomElementgetNextElementSibling()Returns the next sibling element node of this element.DomNodegetNextSibling()java.lang.StringgetNodeValue()org.w3c.dom.DocumentgetOwnerDocument()SgmlPagegetPage()Returns the page that contains this node.DomNodegetParentNode()java.lang.StringgetPrefix()DomElementgetPreviousElementSibling()Returns the previous sibling element node of this element.DomNodegetPreviousSibling()java.lang.StringgetReadyState()Returns this node's ready state (IE only).<T> TgetScriptableObject()INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.protected org.htmlunit.cssparser.parser.selector.SelectorListgetSelectorList(java.lang.String selectors, BrowserVersion browserVersion)Returns theSelectorList.intgetStartColumnNumber()Returns the column number in the source page where the DOM node starts.intgetStartLineNumber()Returns the line number in the source page where the DOM node starts.java.lang.StringgetTextContent()java.lang.ObjectgetUserData(java.lang.String key)java.lang.StringgetVisibleText()Returns a textual representation of this element in the same way as the selenium/WebDriver WebElement#getText() property does.
see get-element-text and dfn-bot-dom-getvisibletext Note: this is different fromasNormalizedText()booleanhandles(org.htmlunit.javascript.host.event.Event event)Indicates if the provided event can be applied to this node.booleanhasAttributes()booleanhasChildNodes()booleanhasFeature(BrowserVersionFeatures feature)INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Helper for a common call sequence.voidinsertBefore(DomNode newNode)Inserts the specified node as a new child node before this node into the child relationship this node is a part of.org.w3c.dom.NodeinsertBefore(org.w3c.dom.Node newChild, org.w3c.dom.Node refChild)booleanisAncestorOf(DomNode node)Returnstrueif this node is an ancestor of the specified node.booleanisAncestorOfAny(DomNode... nodes)Returnstrueif this node is an ancestor of the specified nodes.booleanisAttachedToPage()INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Indicates if this node is currently attached to the page.booleanisDefaultNamespace(java.lang.String namespaceURI)Not yet implemented.booleanisDisplayed()Returnstrueif this node is displayed and can be visible to the user (ignoring screen size, scrolling limitations, color, font-size, or overlapping nodes).booleanisEqualNode(org.w3c.dom.Node arg)Not yet implemented.booleanisSameNode(org.w3c.dom.Node other)booleanisSupported(java.lang.String namespace, java.lang.String featureName)Not yet implemented.java.lang.StringlookupNamespaceURI(java.lang.String prefix)Not yet implemented.java.lang.StringlookupPrefix(java.lang.String namespaceURI)Not yet implemented.booleanmayBeDisplayed()Returnstrueif nodes of this type can ever be displayed,falseotherwise.voidnormalize()protected voidnotifyIncorrectness(java.lang.String message)Notifies the registeredIncorrectnessListenerof something that is not fully correct.protected voidonAddedToDocumentFragment()Lifecycle method invoked whenever a node is added to a document fragment.protected voidonAddedToPage()Lifecycle method invoked whenever a node is added to a page.voidonAllChildrenAddedToPage(boolean postponed)Lifecycle method invoked after a node and all its children have been added to a page, during parsing of the HTML.voidparseHtmlSnippet(java.lang.String source)INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Parses the specified HTML source code, appending the resulting content at the specified target location.protected voidprintChildrenAsXml(java.lang.String indent, java.io.PrintWriter printWriter)Recursively writes the XML data for the node tree starting atnode.protected voidprintXml(java.lang.String indent, java.io.PrintWriter printWriter)Recursively writes the XML data for the node tree starting atnode.voidprocessImportNode(org.htmlunit.javascript.host.dom.Document doc)INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Lifecycle method to support special processing for js method importNode.<N extends DomNode>
NquerySelector(java.lang.String selectors)Returns the first element within the document that matches the specified group of selectors.DomNodeList<DomNode>querySelectorAll(java.lang.String selectors)Retrieves all element nodes from descendants of the starting element node that match any selector within the supplied selector strings.voidquietlyRemoveAndMoveChildrenTo(DomNode destination)INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Quietly removes this node and moves its children to the specified destination.voidremove()Removes this node from all relationships with other nodes.voidremoveAllChildren()Removes all of this node's children.voidremoveCharacterDataChangeListener(CharacterDataChangeListener listener)Removes aCharacterDataChangeListenerfrom the listener list.org.w3c.dom.NoderemoveChild(org.w3c.dom.Node child)voidremoveDomChangeListener(DomChangeListener listener)Removes aDomChangeListenerfrom the listener list.voidreplace(DomNode newNode)Replaces this node with another node.org.w3c.dom.NodereplaceChild(org.w3c.dom.Node newChild, org.w3c.dom.Node oldChild)voidsetEndLocation(int endLineNumber, int endColumnNumber)Sets the line and column numbers in the source page where the DOM node ends.protected voidsetParentNode(DomNode parent)Sets the parent node.voidsetReadyState(java.lang.String state)Sets this node's ready state (IE only).voidsetScriptableObject(java.lang.Object scriptObject)INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Sets the JavaScript object that corresponds to this node.voidsetStartLocation(int startLineNumber, int startColumnNumber)Sets the line and column numbers in the source page where the DOM node starts.voidsetTextContent(java.lang.String textContent)java.lang.ObjectsetUserData(java.lang.String key, java.lang.Object data, org.w3c.dom.UserDataHandler handler)
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Field Detail
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READY_STATE_UNINITIALIZED
public static final java.lang.String READY_STATE_UNINITIALIZED
A ready state constant for IE (state 1).- See Also:
- Constant Field Values
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READY_STATE_LOADING
public static final java.lang.String READY_STATE_LOADING
A ready state constant for IE (state 2).- See Also:
- Constant Field Values
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READY_STATE_LOADED
public static final java.lang.String READY_STATE_LOADED
A ready state constant for IE (state 3).- See Also:
- Constant Field Values
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READY_STATE_INTERACTIVE
public static final java.lang.String READY_STATE_INTERACTIVE
A ready state constant for IE (state 4).- See Also:
- Constant Field Values
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READY_STATE_COMPLETE
public static final java.lang.String READY_STATE_COMPLETE
A ready state constant for IE (state 5).- See Also:
- Constant Field Values
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PROPERTY_ELEMENT
public static final java.lang.String PROPERTY_ELEMENT
The name of the "element" property. Used when watching property change events.- See Also:
- Constant Field Values
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Constructor Detail
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DomNode
protected DomNode(SgmlPage page)
Creates a new instance.- Parameters:
page- the page which contains this node
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Method Detail
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setStartLocation
public void setStartLocation(int startLineNumber, int startColumnNumber)Sets the line and column numbers in the source page where the DOM node starts.- Parameters:
startLineNumber- the line number where the DOM node startsstartColumnNumber- the column number where the DOM node starts
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setEndLocation
public void setEndLocation(int endLineNumber, int endColumnNumber)Sets the line and column numbers in the source page where the DOM node ends.- Parameters:
endLineNumber- the line number where the DOM node endsendColumnNumber- the column number where the DOM node ends
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getStartLineNumber
public int getStartLineNumber()
Returns the line number in the source page where the DOM node starts.- Returns:
- the line number in the source page where the DOM node starts
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getStartColumnNumber
public int getStartColumnNumber()
Returns the column number in the source page where the DOM node starts.- Returns:
- the column number in the source page where the DOM node starts
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getEndLineNumber
public int getEndLineNumber()
Returns the line number in the source page where the DOM node ends.- Returns:
- 0 if no information on the line number is available (for instance for nodes dynamically added), -1 if the end tag has not yet been parsed (during page loading)
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getEndColumnNumber
public int getEndColumnNumber()
Returns the column number in the source page where the DOM node ends.- Returns:
- 0 if no information on the line number is available (for instance for nodes dynamically added), -1 if the end tag has not yet been parsed (during page loading)
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getPage
public SgmlPage getPage()
Returns the page that contains this node.- Returns:
- the page that contains this node
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getHtmlPageOrNull
public HtmlPage getHtmlPageOrNull()
Returns the page that contains this node.- Returns:
- the page that contains this node
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getOwnerDocument
public org.w3c.dom.Document getOwnerDocument()
- Specified by:
getOwnerDocumentin interfaceorg.w3c.dom.Node
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setScriptableObject
public void setScriptableObject(java.lang.Object scriptObject)
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Sets the JavaScript object that corresponds to this node. This is not guaranteed to be set even if there is a JavaScript object for this DOM node.- Parameters:
scriptObject- the JavaScript object
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getLastChild
public DomNode getLastChild()
- Specified by:
getLastChildin interfaceorg.w3c.dom.Node
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getParentNode
public DomNode getParentNode()
- Specified by:
getParentNodein interfaceorg.w3c.dom.Node
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setParentNode
protected void setParentNode(DomNode parent)
Sets the parent node.- Parameters:
parent- the parent node
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getIndex
public int getIndex()
Returns this node's index within its parent's child nodes (zero-based).- Returns:
- this node's index within its parent's child nodes (zero-based)
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getPreviousSibling
public DomNode getPreviousSibling()
- Specified by:
getPreviousSiblingin interfaceorg.w3c.dom.Node
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getNextSibling
public DomNode getNextSibling()
- Specified by:
getNextSiblingin interfaceorg.w3c.dom.Node
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getFirstChild
public DomNode getFirstChild()
- Specified by:
getFirstChildin interfaceorg.w3c.dom.Node
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isAncestorOf
public boolean isAncestorOf(DomNode node)
Returnstrueif this node is an ancestor of the specified node.- Parameters:
node- the node to check- Returns:
trueif this node is an ancestor of the specified node
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isAncestorOfAny
public boolean isAncestorOfAny(DomNode... nodes)
Returnstrueif this node is an ancestor of the specified nodes.- Parameters:
nodes- the nodes to check- Returns:
trueif this node is an ancestor of the specified nodes
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getNamespaceURI
public java.lang.String getNamespaceURI()
- Specified by:
getNamespaceURIin interfaceorg.w3c.dom.Node
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getLocalName
public java.lang.String getLocalName()
- Specified by:
getLocalNamein interfaceorg.w3c.dom.Node
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getPrefix
public java.lang.String getPrefix()
- Specified by:
getPrefixin interfaceorg.w3c.dom.Node
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hasChildNodes
public boolean hasChildNodes()
- Specified by:
hasChildNodesin interfaceorg.w3c.dom.Node
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getChildNodes
public DomNodeList<DomNode> getChildNodes()
- Specified by:
getChildNodesin interfaceorg.w3c.dom.Node
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isSupported
public boolean isSupported(java.lang.String namespace, java.lang.String featureName)Not yet implemented.- Specified by:
isSupportedin interfaceorg.w3c.dom.Node
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normalize
public void normalize()
- Specified by:
normalizein interfaceorg.w3c.dom.Node
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getBaseURI
public java.lang.String getBaseURI()
- Specified by:
getBaseURIin interfaceorg.w3c.dom.Node
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compareDocumentPosition
public short compareDocumentPosition(org.w3c.dom.Node other)
- Specified by:
compareDocumentPositionin interfaceorg.w3c.dom.Node
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getAncestors
public java.util.List<org.w3c.dom.Node> getAncestors()
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Gets the ancestors of the node.- Returns:
- a list of the ancestors with the root at the first position
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getTextContent
public java.lang.String getTextContent()
- Specified by:
getTextContentin interfaceorg.w3c.dom.Node
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setTextContent
public void setTextContent(java.lang.String textContent)
- Specified by:
setTextContentin interfaceorg.w3c.dom.Node
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isSameNode
public boolean isSameNode(org.w3c.dom.Node other)
- Specified by:
isSameNodein interfaceorg.w3c.dom.Node
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lookupPrefix
public java.lang.String lookupPrefix(java.lang.String namespaceURI)
Not yet implemented.- Specified by:
lookupPrefixin interfaceorg.w3c.dom.Node
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isDefaultNamespace
public boolean isDefaultNamespace(java.lang.String namespaceURI)
Not yet implemented.- Specified by:
isDefaultNamespacein interfaceorg.w3c.dom.Node
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lookupNamespaceURI
public java.lang.String lookupNamespaceURI(java.lang.String prefix)
Not yet implemented.- Specified by:
lookupNamespaceURIin interfaceorg.w3c.dom.Node
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isEqualNode
public boolean isEqualNode(org.w3c.dom.Node arg)
Not yet implemented.- Specified by:
isEqualNodein interfaceorg.w3c.dom.Node
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getFeature
public java.lang.Object getFeature(java.lang.String feature, java.lang.String version)Not yet implemented.- Specified by:
getFeaturein interfaceorg.w3c.dom.Node
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getUserData
public java.lang.Object getUserData(java.lang.String key)
- Specified by:
getUserDatain interfaceorg.w3c.dom.Node
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setUserData
public java.lang.Object setUserData(java.lang.String key, java.lang.Object data, org.w3c.dom.UserDataHandler handler)- Specified by:
setUserDatain interfaceorg.w3c.dom.Node
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hasAttributes
public boolean hasAttributes()
- Specified by:
hasAttributesin interfaceorg.w3c.dom.Node
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getAttributes
public org.w3c.dom.NamedNodeMap getAttributes()
- Specified by:
getAttributesin interfaceorg.w3c.dom.Node
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isDisplayed
public boolean isDisplayed()
Returns
trueif this node is displayed and can be visible to the user (ignoring screen size, scrolling limitations, color, font-size, or overlapping nodes).NOTE: If CSS is
disabled, this method does not take this element's style into consideration!- Returns:
trueif the node is visible to the user,falseotherwise- See Also:
- CSS2 Visibility,
CSS2 Display,
MSDN Documentation,
mayBeDisplayed()
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mayBeDisplayed
public boolean mayBeDisplayed()
Returnstrueif nodes of this type can ever be displayed,falseotherwise. Examples of nodes that can never be displayed are<head>,<meta>,<script>, etc.- Returns:
trueif nodes of this type can ever be displayed,falseotherwise- See Also:
isDisplayed()
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asNormalizedText
public java.lang.String asNormalizedText()
Returns a normalized textual representation of this element that represents what would be visible to the user if this page was shown in a web browser. Whitespace is normalized like in the browser and block tags are separated by '\n'.- Returns:
- a normalized textual representation of this element
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getVisibleText
public java.lang.String getVisibleText()
Returns a textual representation of this element in the same way as the selenium/WebDriver WebElement#getText() property does.
see get-element-text and dfn-bot-dom-getvisibletext Note: this is different fromasNormalizedText()- Returns:
- a textual representation of this element that represents what would be visible to the user if this page was shown in a web browser
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asXml
public java.lang.String asXml()
Returns a string representation of the XML document from this element and all it's children (recursively). The charset used is the current page encoding.- Returns:
- the XML string
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printXml
protected void printXml(java.lang.String indent, java.io.PrintWriter printWriter)Recursively writes the XML data for the node tree starting atnode.- Parameters:
indent- white space to indent child nodesprintWriter- writer where child nodes are written
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printChildrenAsXml
protected void printChildrenAsXml(java.lang.String indent, java.io.PrintWriter printWriter)Recursively writes the XML data for the node tree starting atnode.- Parameters:
indent- white space to indent child nodesprintWriter- writer where child nodes are written
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getNodeValue
public java.lang.String getNodeValue()
- Specified by:
getNodeValuein interfaceorg.w3c.dom.Node
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cloneNode
public DomNode cloneNode(boolean deep)
- Specified by:
cloneNodein interfaceorg.w3c.dom.Node
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getScriptableObject
public <T> T getScriptableObject()
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Returns the JavaScript object that corresponds to this node, lazily initializing a new one if necessary.
The logic of when and where the JavaScript object is created needs a clean up: functions using a DOM node's JavaScript object should not have to check if they should create it first.
- Type Parameters:
T- the object type- Returns:
- the JavaScript object that corresponds to this node
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appendChild
public DomNode appendChild(org.w3c.dom.Node node)
- Specified by:
appendChildin interfaceorg.w3c.dom.Node
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insertBefore
public org.w3c.dom.Node insertBefore(org.w3c.dom.Node newChild, org.w3c.dom.Node refChild)- Specified by:
insertBeforein interfaceorg.w3c.dom.Node
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insertBefore
public void insertBefore(DomNode newNode)
Inserts the specified node as a new child node before this node into the child relationship this node is a part of. If the specified node is this node, this method is a no-op.- Parameters:
newNode- the new node to insert
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removeChild
public org.w3c.dom.Node removeChild(org.w3c.dom.Node child)
- Specified by:
removeChildin interfaceorg.w3c.dom.Node
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removeAllChildren
public void removeAllChildren()
Removes all of this node's children.
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parseHtmlSnippet
public void parseHtmlSnippet(java.lang.String source) throws org.xml.sax.SAXException, java.io.IOExceptionINTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Parses the specified HTML source code, appending the resulting content at the specified target location.- Parameters:
source- the HTML code extract to parse- Throws:
java.io.IOException- in case of errororg.xml.sax.SAXException- in case of error
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remove
public void remove()
Removes this node from all relationships with other nodes.
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detach
protected void detach()
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Detach this node from all relationships with other nodes. This is the first step of a move.
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basicRemove
protected void basicRemove()
Cuts off all relationships this node has with siblings and parents.
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replaceChild
public org.w3c.dom.Node replaceChild(org.w3c.dom.Node newChild, org.w3c.dom.Node oldChild)- Specified by:
replaceChildin interfaceorg.w3c.dom.Node
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replace
public void replace(DomNode newNode)
Replaces this node with another node. If the specified node is this node, this method is a no-op.- Parameters:
newNode- the node to replace this one
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quietlyRemoveAndMoveChildrenTo
public void quietlyRemoveAndMoveChildrenTo(DomNode destination)
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Quietly removes this node and moves its children to the specified destination. "Quietly" means that no node events are fired. This method is not appropriate for most use cases. It should only be used in specific cases for HTML parsing hackery.- Parameters:
destination- the node to which this node's children should be moved before this node is removed
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checkChildHierarchy
protected void checkChildHierarchy(org.w3c.dom.Node newChild) throws org.w3c.dom.DOMExceptionCheck for insertion errors for a new child node. This is overridden by derived classes to enforce which types of children are allowed.- Parameters:
newChild- the new child node that is being inserted below this node- Throws:
org.w3c.dom.DOMException- HIERARCHY_REQUEST_ERR: Raised if this node is of a type that does not allow children of the type of the newChild node, or if the node to insert is one of this node's ancestors or this node itself, or if this node is of type Document and the DOM application attempts to insert a second DocumentType or Element node. WRONG_DOCUMENT_ERR: Raised if newChild was created from a different document than the one that created this node.
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onAddedToPage
protected void onAddedToPage()
Lifecycle method invoked whenever a node is added to a page. Intended to be overridden by nodes which need to perform custom logic when they are added to a page. This method is recursive, so if you override it, please be sure to callsuper.onAddedToPage().
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onAllChildrenAddedToPage
public void onAllChildrenAddedToPage(boolean postponed)
Lifecycle method invoked after a node and all its children have been added to a page, during parsing of the HTML. Intended to be overridden by nodes which need to perform custom logic after they and all their child nodes have been processed by the HTML parser. This method is not recursive, and the default implementation is empty, so there is no need to callsuper.onAllChildrenAddedToPage()if you implement this method.- Parameters:
postponed- whether to usePostponedActionor no
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onAddedToDocumentFragment
protected void onAddedToDocumentFragment()
Lifecycle method invoked whenever a node is added to a document fragment. Intended to be overridden by nodes which need to perform custom logic when they are added to a fragment. This method is recursive, so if you override it, please be sure to callsuper.onAddedToDocumentFragment().
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getChildren
public final java.lang.Iterable<DomNode> getChildren()
- Returns:
- an
Iterableover the children of this node
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getDescendants
public final java.lang.Iterable<DomNode> getDescendants()
Returns anIterablethat will recursively iterate over all of this node's descendants, includingDomTextelements,DomCommentelements, etc. If you want to iterate only overHtmlElementdescendants, please usegetHtmlElementDescendants().- Returns:
- an
Iterablethat will recursively iterate over all of this node's descendants
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getHtmlElementDescendants
public final java.lang.Iterable<HtmlElement> getHtmlElementDescendants()
Returns anIterablethat will recursively iterate over all of this node'sHtmlElementdescendants. If you want to iterate over all descendants (includingDomTextelements,DomCommentelements, etc.), please usegetDescendants().- Returns:
- an
Iterablethat will recursively iterate over all of this node'sHtmlElementdescendants - See Also:
getDomElementDescendants()
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getDomElementDescendants
public final java.lang.Iterable<DomElement> getDomElementDescendants()
Returns anIterablethat will recursively iterate over all of this node'sDomElementdescendants. If you want to iterate over all descendants (includingDomTextelements,DomCommentelements, etc.), please usegetDescendants().- Returns:
- an
Iterablethat will recursively iterate over all of this node'sDomElementdescendants - See Also:
getHtmlElementDescendants()
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getReadyState
public java.lang.String getReadyState()
Returns this node's ready state (IE only).- Returns:
- this node's ready state
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setReadyState
public void setReadyState(java.lang.String state)
Sets this node's ready state (IE only).- Parameters:
state- this node's ready state
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getByXPath
public <T> java.util.List<T> getByXPath(java.lang.String xpathExpr)
Evaluates the specified XPath expression from this node, returning the matching elements.
Note: This implies that the ',' point to this node but the general axis like '//' are still looking at the whole document. E.g. if you like to get all child h1 nodes from the current one you have to use './/h1' instead of '//h1' because the latter matches all h1 nodes of the# whole document.- Type Parameters:
T- the expected type- Parameters:
xpathExpr- the XPath expression to evaluate- Returns:
- the elements which match the specified XPath expression
- See Also:
getFirstByXPath(String),getCanonicalXPath()
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getByXPath
public java.util.List<?> getByXPath(java.lang.String xpathExpr, org.htmlunit.xpath.xml.utils.PrefixResolver resolver)Evaluates the specified XPath expression from this node, returning the matching elements.- Parameters:
xpathExpr- the XPath expression to evaluateresolver- the prefix resolver to use for resolving namespace prefixes, or null- Returns:
- the elements which match the specified XPath expression
- See Also:
getFirstByXPath(String),getCanonicalXPath()
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getFirstByXPath
public <X> X getFirstByXPath(java.lang.String xpathExpr)
Evaluates the specified XPath expression from this node, returning the first matching element, ornullif no node matches the specified XPath expression.- Type Parameters:
X- the expression type- Parameters:
xpathExpr- the XPath expression- Returns:
- the first element matching the specified XPath expression
- See Also:
getByXPath(String),getCanonicalXPath()
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getFirstByXPath
public <X> X getFirstByXPath(java.lang.String xpathExpr, org.htmlunit.xpath.xml.utils.PrefixResolver resolver)Evaluates the specified XPath expression from this node, returning the first matching element, ornullif no node matches the specified XPath expression.- Type Parameters:
X- the expression type- Parameters:
xpathExpr- the XPath expressionresolver- the prefix resolver to use for resolving namespace prefixes, or null- Returns:
- the first element matching the specified XPath expression
- See Also:
getByXPath(String),getCanonicalXPath()
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getCanonicalXPath
public java.lang.String getCanonicalXPath()
Returns the canonical XPath expression which identifies this node, for instance
"/html/body/table[3]/tbody/tr[5]/td[2]/span/a[3]".WARNING: This sort of automated XPath expression is often quite bad at identifying a node, as it is highly sensitive to changes in the DOM tree.
- Returns:
- the canonical XPath expression which identifies this node
- See Also:
getByXPath(String)
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notifyIncorrectness
protected void notifyIncorrectness(java.lang.String message)
Notifies the registeredIncorrectnessListenerof something that is not fully correct.- Parameters:
message- the notification to send to the registeredIncorrectnessListener
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addDomChangeListener
public void addDomChangeListener(DomChangeListener listener)
Adds aDomChangeListenerto the listener list. The listener is registered for all descendants of this node.- Parameters:
listener- the DOM structure change listener to be added- See Also:
removeDomChangeListener(DomChangeListener)
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removeDomChangeListener
public void removeDomChangeListener(DomChangeListener listener)
Removes aDomChangeListenerfrom the listener list. The listener is deregistered for all descendants of this node.- Parameters:
listener- the DOM structure change listener to be removed- See Also:
addDomChangeListener(DomChangeListener)
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fireNodeAdded
protected void fireNodeAdded(DomChangeEvent event)
Support for reporting DOM changes. This method can be called when a node has been added, and it will send the appropriateDomChangeEventto any registeredDomChangeListeners.Note that this method recursively calls this node's parent's
fireNodeAdded(DomChangeEvent).- Parameters:
event- the DomChangeEvent to be propagated
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addCharacterDataChangeListener
public void addCharacterDataChangeListener(CharacterDataChangeListener listener)
Adds aCharacterDataChangeListenerto the listener list. The listener is registered for all descendants of this node.- Parameters:
listener- the character data change listener to be added- See Also:
removeCharacterDataChangeListener(CharacterDataChangeListener)
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removeCharacterDataChangeListener
public void removeCharacterDataChangeListener(CharacterDataChangeListener listener)
Removes aCharacterDataChangeListenerfrom the listener list. The listener is deregistered for all descendants of this node.- Parameters:
listener- the Character Data change listener to be removed- See Also:
addCharacterDataChangeListener(CharacterDataChangeListener)
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fireCharacterDataChanged
protected void fireCharacterDataChanged(CharacterDataChangeEvent event)
Support for reporting Character Data changes.Note that this method recursively calls this node's parent's
fireCharacterDataChanged(org.htmlunit.html.CharacterDataChangeEvent).- Parameters:
event- the CharacterDataChangeEvent to be propagated
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fireNodeDeleted
protected void fireNodeDeleted(DomChangeEvent event)
Support for reporting DOM changes. This method can be called when a node has been deleted, and it will send the appropriateDomChangeEventto any registeredDomChangeListeners.Note that this method recursively calls this node's parent's
fireNodeDeleted(DomChangeEvent).- Parameters:
event- the DomChangeEvent to be propagated
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querySelectorAll
public DomNodeList<DomNode> querySelectorAll(java.lang.String selectors)
Retrieves all element nodes from descendants of the starting element node that match any selector within the supplied selector strings.- Parameters:
selectors- one or more CSS selectors separated by commas- Returns:
- list of all found nodes
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getSelectorList
protected org.htmlunit.cssparser.parser.selector.SelectorList getSelectorList(java.lang.String selectors, BrowserVersion browserVersion) throws java.io.IOExceptionReturns theSelectorList.- Parameters:
selectors- the selectorsbrowserVersion- theBrowserVersion- Returns:
- the
SelectorList - Throws:
java.io.IOException- if an error occurs
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querySelector
public <N extends DomNode> N querySelector(java.lang.String selectors)
Returns the first element within the document that matches the specified group of selectors.- Type Parameters:
N- the node type- Parameters:
selectors- one or more CSS selectors separated by commas- Returns:
- null if no matches are found; otherwise, it returns the first matching element
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isAttachedToPage
public boolean isAttachedToPage()
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Indicates if this node is currently attached to the page.- Returns:
trueif the page is one ancestor of the node.
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processImportNode
public void processImportNode(org.htmlunit.javascript.host.dom.Document doc)
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Lifecycle method to support special processing for js method importNode.- Parameters:
doc- the import target document- See Also:
Document.importNode( org.htmlunit.javascript.host.dom.Node, boolean),HtmlScript.processImportNode(org.htmlunit.javascript.host.dom.Document)
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hasFeature
public boolean hasFeature(BrowserVersionFeatures feature)
INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Helper for a common call sequence.- Parameters:
feature- the feature to check- Returns:
trueif the currently emulated browser has this feature.
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handles
public boolean handles(org.htmlunit.javascript.host.event.Event event)
Indicates if the provided event can be applied to this node. Overwrite this.- Parameters:
event- the event- Returns:
falseif the event can't be applied
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getPreviousElementSibling
public DomElement getPreviousElementSibling()
Returns the previous sibling element node of this element. null if this element has no element sibling nodes that come before this one in the document tree.- Returns:
- the previous sibling element node of this element. null if this element has no element sibling nodes that come before this one in the document tree
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getNextElementSibling
public DomElement getNextElementSibling()
Returns the next sibling element node of this element. null if this element has no element sibling nodes that come after this one in the document tree.- Returns:
- the next sibling element node of this element. null if this element has no element sibling nodes that come after this one in the document tree
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closest
public DomElement closest(java.lang.String selectorString)
- Parameters:
selectorString- the selector to test- Returns:
- the selected
DomElementor null.
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