org.htmlunit.html

Class HtmlElement

java.lang.Object

org.htmlunit.html.DomNode

org.htmlunit.html.DomNamespaceNode

org.htmlunit.html.DomElement

org.htmlunit.html.HtmlElement

All Implemented Interfaces:

Serializable, Cloneable, Element, Node

Direct Known Subclasses:

BaseFrameElement, HtmlAbbreviated, HtmlAcronym, HtmlAddress, HtmlAnchor, HtmlArea, HtmlArticle, HtmlAside, HtmlBackgroundSound, HtmlBase, HtmlBaseFont, HtmlBidirectionalIsolation, HtmlBidirectionalOverride, HtmlBig, HtmlBlockQuote, HtmlBody, HtmlBold, HtmlBreak, HtmlButton, HtmlCanvas, HtmlCaption, HtmlCenter, HtmlCitation, HtmlCode, HtmlData, HtmlDataList, HtmlDefinition, HtmlDefinitionDescription, HtmlDefinitionList, HtmlDefinitionTerm, HtmlDeletedText, HtmlDetails, HtmlDialog, HtmlDirectory, HtmlDivision, HtmlEmbed, HtmlEmphasis, HtmlExample, HtmlFieldSet, HtmlFigure, HtmlFigureCaption, HtmlFont, HtmlFooter, HtmlForm, HtmlFrameSet, HtmlHead, HtmlHeader, HtmlHeading1, HtmlHeading2, HtmlHeading3, HtmlHeading4, HtmlHeading5, HtmlHeading6, HtmlHorizontalRule, HtmlHtml, HtmlImage, HtmlInlineQuotation, HtmlInput, HtmlInsertedText, HtmlItalic, HtmlKeyboard, HtmlLabel, HtmlLayer, HtmlLegend, HtmlLink, HtmlListing, HtmlListItem, HtmlMain, HtmlMap, HtmlMark, HtmlMarquee, HtmlMedia, HtmlMenu, HtmlMeta, HtmlNav, HtmlNoBreak, HtmlNoEmbed, HtmlNoFrames, HtmlNoLayer, HtmlNoScript, HtmlObject, HtmlOption, HtmlOptionGroup, HtmlOrderedList, HtmlOutput, HtmlParagraph, HtmlParameter, HtmlPicture, HtmlPlainText, HtmlPreformattedText, HtmlProgress, HtmlRb, HtmlRp, HtmlRt, HtmlRtc, HtmlRuby, HtmlS, HtmlSample, HtmlScript, HtmlSection, HtmlSelect, HtmlSlot, HtmlSmall, HtmlSource, HtmlSpan, HtmlStrike, HtmlStrong, HtmlStyle, HtmlSubscript, HtmlSummary, HtmlSuperscript, HtmlSvg, HtmlTable, HtmlTableCell, HtmlTableColumn, HtmlTableColumnGroup, HtmlTableRow, HtmlTeletype, HtmlTemplate, HtmlTextArea, HtmlTime, HtmlTitle, HtmlTrack, HtmlUnderlined, HtmlUnknownElement, HtmlUnorderedList, HtmlVariable, HtmlWordBreak, TableRowGroup

public abstract class HtmlElement
extends DomElement

An abstract wrapper for HTML elements.

Author:

Mike Bowler, Mike J. Bresnahan, David K. Taylor, Christian Sell, David D. Kilzer, Mike Gallaher, Denis N. Antonioli, Marc Guillemot, Ahmed Ashour, Daniel Gredler, Dmitri Zoubkov, Sudhan Moghe, Ronald Brill, Frank Danek, Ronny Shapiro, Lai Quang Duong

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HtmlElement.DisplayStyle Enum for the different display styles.

Nested classes/interfaces inherited from class org.htmlunit.html.DomElement

DomElement.ChildElementsIterator

Nested classes/interfaces inherited from class org.htmlunit.html.DomNode

DomNode.ChildIterator, DomNode.DescendantElementsIterator<T extends DomNode>

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	ATTRIBUTE_CHECKED Constant 'checked'.
protected static String	ATTRIBUTE_HIDDEN Constant 'hidden'.
protected static String	ATTRIBUTE_REQUIRED Constant 'required'.
static Short	TAB_INDEX_OUT_OF_BOUNDS Constant indicating that a tab index value is out of bounds (less than 0 or greater than 32767).

Fields inherited from class org.htmlunit.html.DomElement

ATTRIBUTE_NOT_DEFINED, ATTRIBUTE_VALUE_EMPTY, ID_ATTRIBUTE, NAME_ATTRIBUTE, SRC_ATTRIBUTE, TYPE_ATTRIBUTE, VALUE_ATTRIBUTE

Fields inherited from class org.htmlunit.html.DomNode

PROPERTY_ELEMENT, READY_STATE_COMPLETE, READY_STATE_INTERACTIVE, READY_STATE_LOADED, READY_STATE_LOADING, READY_STATE_UNINITIALIZED

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

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	HtmlElement(String qualifiedName, SgmlPage page, Map<String,DomAttr> attributes) Creates an instance.
protected	HtmlElement(String namespaceURI, String qualifiedName, SgmlPage page, Map<String,DomAttr> attributes) Creates an instance of a DOM element that can have a namespace.

Method Summary

Modifier and Type	Method and Description
protected boolean	acceptChar(char c) Indicates if the provided character can by "typed" in the element.
void	addHtmlAttributeChangeListener(HtmlAttributeChangeListener listener) Adds an HtmlAttributeChangeListener to the listener list.
HtmlElement	appendChildIfNoneExists(String tagName) Appends a child element to this HTML element with the specified tag name if this HTML element does not already have a child with that tag name.
protected void	checkChildHierarchy(Node childNode) Check for insertion errors for a new child node.
DomNode	cloneNode(boolean deep)
protected void	detach() INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
protected void	doType(char c, boolean lastType) Performs the effective type action, called after the keyPress event and before the keyUp event.
protected void	doType(int keyCode, boolean lastType) Performs the effective type action, called after the keyPress event and before the keyUp event.
protected void	fireHtmlAttributeAdded(HtmlAttributeChangeEvent event) Support for reporting HTML attribute changes.
protected void	fireHtmlAttributeRemoved(HtmlAttributeChangeEvent event) Support for reporting HTML attribute changes.
protected void	fireHtmlAttributeReplaced(HtmlAttributeChangeEvent event) Support for reporting HTML attribute changes.
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]".
HtmlElement.DisplayStyle	getDefaultStyleDisplay() INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
<E extends HtmlElement> List<E>	getElementsByAttribute(String elementName, String attributeName, String attributeValue) Returns all elements which are descendants of this element and match the specified search criteria.
HtmlElement	getEnclosingElement(String tagName) Returns the first element with the specified tag name that is an ancestor to this element, or null if no such element is found.
HtmlForm	getEnclosingForm() Returns the form which contains this element, or null if this element is not inside of a form.
HtmlForm	getEnclosingFormOrDie() Returns the form which contains this element.
String	getLangAttribute() Returns the value of the attribute lang.
String	getNodeName()
String	getOnClickAttribute() Returns the value of the attribute onclick.
String	getOnDblClickAttribute() Returns the value of the attribute ondblclick.
<E extends HtmlElement> E	getOneHtmlElementByAttribute(String elementName, String attributeName, String attributeValue) Searches for an element based on the specified criteria, returning the first element which matches said criteria.
String	getOnKeyDownAttribute() Returns the value of the attribute onkeydown.
String	getOnKeyPressAttribute() Returns the value of the attribute onkeypress.
String	getOnKeyUpAttribute() Returns the value of the attribute onkeyup.
String	getOnMouseDownAttribute() Returns the value of the attribute onmousedown.
String	getOnMouseMoveAttribute() Returns the value of the attribute onmousemove.
String	getOnMouseOutAttribute() Returns the value of the attribute onmouseout.
String	getOnMouseOverAttribute() Returns the value of the attribute onmouseover.
String	getOnMouseUpAttribute() Returns the value of the attribute onmouseup.
protected String	getSrcAttributeNormalized() Helper for src retrieval and normalization.
Short	getTabIndex() Returns this element's tab index, if it has one.
String	getTextDirectionAttribute() Returns the value of the attribute dir.
String	getXmlLangAttribute() Returns the value of the attribute xml:lang.
boolean	handles(Event event) Indicates if the provided event can be applied to this node.
boolean	hasEventHandlers(String eventName) INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
boolean	isAltPressed() Returns whether the ALT is currently pressed.
protected boolean	isAttributeCaseSensitive() Indicates if the attribute names are case sensitive.
boolean	isCtrlPressed() Returns whether the CTRL is currently pressed.
boolean	isDisplayed() Returns true if this node is displayed and can be visible to the user (ignoring screen size, scrolling limitations, color, font-size, or overlapping nodes).
boolean	isHidden()
boolean	isOptional()
boolean	isRequired()
protected boolean	isRequiredSupported() Returns whether this element supports the required constraint.
protected boolean	isShiftPressed() Returns whether the SHIFT is currently pressed.
protected boolean	isSubmittableByEnter() Returns true if clicking Enter (ASCII 10, or '\n') should submit the enclosed form (if any).
boolean	isValid() Returns whether this element satisfies all form validation constraints set.
protected static void	notifyAttributeChangeListeners(HtmlAttributeChangeEvent event, HtmlElement element, String oldAttributeValue, boolean notifyMutationObservers) Recursively notifies all HtmlAttributeChangeListeners.
void	removeAttribute(String attributeName) Removes an attribute specified by name from this element.
void	removeChild(String tagName, int i) Removes the ith child element with the specified tag name from all relationships, if possible.
void	removeHtmlAttributeChangeListener(HtmlAttributeChangeListener listener) Removes an HtmlAttributeChangeListener from the listener list.
Attr	setAttributeNode(Attr attribute) Sets the specified attribute.
protected void	setAttributeNS(String namespaceURI, String qualifiedName, String attributeValue, boolean notifyAttributeChangeListeners, boolean notifyMutationObservers) Sets the value of the attribute specified by namespace and qualified name.
void	setHidden(boolean hidden) Sets the hidden property.
void	setHidden(String hidden) Sets the hidden property.
void	setOwningForm(HtmlForm form) INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
void	setRequired(boolean required) Sets the required attribute.
Page	type(char c) Simulates typing the specified character while this element has focus, returning the page contained by this element's window after typing.
Page	type(int keyCode) Simulates typing the specified key code while this element has focus, returning the page contained by this element's window after typing.
Page	type(Keyboard keyboard) Simulates typing the specified Keyboard while this element has focus, returning the page contained by this element's window after typing.
void	type(String text) Simulates typing the specified text while this element has focus.
protected void	typeDone(String newValue, boolean notifyAttributeChangeListeners) Called from DoTypeProcessor.

Methods inherited from class org.htmlunit.html.DomElement

blur, click, click, click, click, click, dblClick, dblClick, doClickFireChangeEvent, doClickFireClickEvent, doClickStateUpdate, fireEvent, fireEvent, focus, getAttribute, getAttributeDirect, getAttributeNode, getAttributeNodeNS, getAttributeNS, getAttributes, getAttributesMap, getChildElementCount, getChildElements, getElementsByTagName, getElementsByTagNameNS, getEventTargetElement, getFirstElementChild, getId, getLastElementChild, getNodeType, getSchemaTypeInfo, getStaticElementsByTagName, getStyleElement, getStyleElementCaseInSensitive, getStyleMap, getTagName, hasAttribute, hasAttributeNS, hasAttributes, isDisabledElementAndDisabled, isEmptyXmlTagExpanded, isMouseOver, isStateUpdateFirst, matches, mouseDown, mouseDown, mouseMove, mouseMove, mouseOut, mouseOut, mouseOver, mouseOver, mouseUp, mouseUp, preventDefault, printOpeningTagContentAsXml, printXml, propagateClickStateUpdateToParent, removeAttributeNode, removeAttributeNS, removeFocus, removeStyleAttribute, replaceStyleAttribute, rightClick, rightClick, setAttribute, setAttributeNodeNS, setAttributeNS, setDefaults, setId, setIdAttribute, setIdAttributeNode, setIdAttributeNS, setInnerHtml, setNodeValue, toString, writeStyleToElement

Methods inherited from class org.htmlunit.html.DomNamespaceNode

getLocalName, getLowercaseName, getNamespaceURI, getPrefix, getQualifiedName, processImportNode, setPrefix

Methods inherited from class org.htmlunit.html.DomNode

addCharacterDataChangeListener, addDomChangeListener, appendChild, asNormalizedText, asXml, basicRemove, closest, compareDocumentPosition, fireCharacterDataChanged, fireNodeAdded, fireNodeDeleted, getAncestors, getBaseURI, getByXPath, getByXPath, getChildNodes, getChildren, getDescendants, getDomElementDescendants, getEndColumnNumber, getEndLineNumber, getFeature, getFirstByXPath, getFirstByXPath, getFirstChild, getHtmlElementDescendants, getHtmlPageOrNull, getIndex, getLastChild, getNextElementSibling, getNextSibling, getNodeValue, getOwnerDocument, getPage, getParentNode, getPreviousElementSibling, getPreviousSibling, getReadyState, getScriptableObject, getSelectorList, getStartColumnNumber, getStartLineNumber, getTextContent, getUserData, getVisibleText, hasChildNodes, hasFeature, insertBefore, insertBefore, isAncestorOf, isAncestorOfAny, isAttachedToPage, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, mayBeDisplayed, normalize, notifyIncorrectness, onAddedToDocumentFragment, onAddedToPage, onAllChildrenAddedToPage, parseHtmlSnippet, printChildrenAsXml, querySelector, querySelectorAll, quietlyRemoveAndMoveChildrenTo, remove, removeAllChildren, removeCharacterDataChangeListener, removeChild, removeDomChangeListener, replace, replaceChild, setEndLocation, setParentNode, setReadyState, setScriptableObject, setStartLocation, setTextContent, setUserData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.w3c.dom.Node

appendChild, compareDocumentPosition, getBaseURI, getChildNodes, getFeature, getFirstChild, getLastChild, getLocalName, getNamespaceURI, getNextSibling, getNodeValue, getOwnerDocument, getParentNode, getPrefix, getPreviousSibling, getTextContent, getUserData, hasChildNodes, insertBefore, isDefaultNamespace, isEqualNode, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, normalize, removeChild, replaceChild, setPrefix, setTextContent, setUserData

Field Detail

TAB_INDEX_OUT_OF_BOUNDS

public static final Short TAB_INDEX_OUT_OF_BOUNDS

Constant indicating that a tab index value is out of bounds (less than 0 or greater than 32767).

See Also:

getTabIndex()

ATTRIBUTE_REQUIRED

protected static final String ATTRIBUTE_REQUIRED

Constant 'required'.

See Also:

Constant Field Values

ATTRIBUTE_CHECKED

protected static final String ATTRIBUTE_CHECKED

Constant 'checked'.

See Also:

Constant Field Values

ATTRIBUTE_HIDDEN

protected static final String ATTRIBUTE_HIDDEN

Constant 'hidden'.

See Also:

Constant Field Values

Constructor Detail

HtmlElement

protected HtmlElement(String qualifiedName,
                      SgmlPage page,
                      Map<String,DomAttr> attributes)

Creates an instance.

Parameters:

qualifiedName - the qualified name of the element type to instantiate

page - the page that contains this element

attributes - a map ready initialized with the attributes for this element, or null. The map will be stored as is, not copied.

HtmlElement

protected HtmlElement(String namespaceURI,
                      String qualifiedName,
                      SgmlPage page,
                      Map<String,DomAttr> attributes)

Creates an instance of a DOM element that can have a namespace.

Parameters:

namespaceURI - the URI that identifies an XML namespace

qualifiedName - the qualified name of the element type to instantiate

page - the page that contains this element

attributes - a map ready initialized with the attributes for this element, or null. The map will be stored as is, not copied.

Method Detail

setAttributeNS

protected void setAttributeNS(String namespaceURI,
                              String qualifiedName,
                              String attributeValue,
                              boolean notifyAttributeChangeListeners,
                              boolean notifyMutationObservers)

Sets the value of the attribute specified by namespace and qualified name.

Overrides:

setAttributeNS in class DomElement

Parameters:

namespaceURI - the URI that identifies an XML namespace

qualifiedName - the qualified name (prefix:local) of the attribute

attributeValue - the value of the attribute

notifyAttributeChangeListeners - to notify the associated HtmlAttributeChangeListeners

notifyMutationObservers - to notify MutationObservers or not

notifyAttributeChangeListeners

protected static void notifyAttributeChangeListeners(HtmlAttributeChangeEvent event,
                                                     HtmlElement element,
                                                     String oldAttributeValue,
                                                     boolean notifyMutationObservers)

Recursively notifies all HtmlAttributeChangeListeners.

Parameters:

event - the event

element - the element

oldAttributeValue - the old attribute value

notifyMutationObservers - whether to notify MutationObservers or not

setAttributeNode

public Attr setAttributeNode(Attr attribute)

Sets the specified attribute. This method may be overridden by subclasses which are interested in specific attribute value changes, but such methods must invoke super.setAttributeNode(), and should consider the value of the cloning parameter when deciding whether or not to execute custom logic.

Specified by:

setAttributeNode in interface Element

Overrides:

setAttributeNode in class DomElement

Parameters:

attribute - the attribute to set

Returns:

removeAttribute

public void removeAttribute(String attributeName)

Removes an attribute specified by name from this element.

Specified by:

removeAttribute in interface Element

Overrides:

removeAttribute in class DomElement

Parameters:

attributeName - the attribute attributeName

fireHtmlAttributeAdded

protected void fireHtmlAttributeAdded(HtmlAttributeChangeEvent event)

Support for reporting HTML attribute changes. This method can be called when an attribute has been added and it will send the appropriate HtmlAttributeChangeEvent to any registered HtmlAttributeChangeListeners.

Note that this method recursively calls this element's parent's fireHtmlAttributeAdded(HtmlAttributeChangeEvent) method.

Parameters:

event - the event

See Also:

addHtmlAttributeChangeListener(HtmlAttributeChangeListener)

fireHtmlAttributeReplaced

protected void fireHtmlAttributeReplaced(HtmlAttributeChangeEvent event)

Support for reporting HTML attribute changes. This method can be called when an attribute has been replaced and it will send the appropriate HtmlAttributeChangeEvent to any registered HtmlAttributeChangeListeners.

Note that this method recursively calls this element's parent's fireHtmlAttributeReplaced(HtmlAttributeChangeEvent) method.

Parameters:

event - the event

See Also:

addHtmlAttributeChangeListener(HtmlAttributeChangeListener)

fireHtmlAttributeRemoved

protected void fireHtmlAttributeRemoved(HtmlAttributeChangeEvent event)

Support for reporting HTML attribute changes. This method can be called when an attribute has been removed and it will send the appropriate HtmlAttributeChangeEvent to any registered HtmlAttributeChangeListeners.

Note that this method recursively calls this element's parent's fireHtmlAttributeRemoved(HtmlAttributeChangeEvent) method.

Parameters:

event - the event

See Also:

addHtmlAttributeChangeListener(HtmlAttributeChangeListener)

getNodeName

public String getNodeName()

Description copied from class: DomElement

Specified by:

getNodeName in interface Node

Overrides:

getNodeName in class DomElement

Returns:

the same value as returned by DomElement.getTagName()

getTabIndex

public Short getTabIndex()

Returns this element's tab index, if it has one. If the tab index is outside of the valid range (less than 0 or greater than 32767), this method returns TAB_INDEX_OUT_OF_BOUNDS. If this element does not have a tab index, or its tab index is otherwise invalid, this method returns null.

Returns:

this element's tab index

getEnclosingElement

public HtmlElement getEnclosingElement(String tagName)

Returns the first element with the specified tag name that is an ancestor to this element, or null if no such element is found.

Parameters:

tagName - the name of the tag searched (case insensitive)

Returns:

the first element with the specified tag name that is an ancestor to this element

getEnclosingForm

public HtmlForm getEnclosingForm()

Returns the form which contains this element, or null if this element is not inside of a form.

Returns:

the form which contains this element

getEnclosingFormOrDie

public HtmlForm getEnclosingFormOrDie()

Returns the form which contains this element. If this element is not inside a form, this method throws an IllegalStateException.

Returns:

the form which contains this element

type

public void type(String text)
          throws IOException

Simulates typing the specified text while this element has focus. Note that for some elements, typing '\n' submits the enclosed form.

Parameters:

text - the text you with to simulate typing

Throws:

IOException - If an IO error occurs

type

public Page type(char c)
          throws IOException

Simulates typing the specified character while this element has focus, returning the page contained by this element's window after typing. Note that it may or may not be the same as the original page, depending on the JavaScript event handlers, etc. Note also that for some elements, typing '\n' submits the enclosed form.

Parameters:

c - the character you wish to simulate typing

Returns:

the page that occupies this window after typing

Throws:

IOException - if an IO error occurs

type

public Page type(int keyCode)

Simulates typing the specified key code while this element has focus, returning the page contained by this element's window after typing. Note that it may or may not be the same as the original page, depending on the JavaScript event handlers, etc. Note also that for some elements, typing XXXXXXXXXXX submits the enclosed form.

An example of predefined values is KeyboardEvent.DOM_VK_PAGE_DOWN.

Parameters:

keyCode - the key code to simulate typing

Returns:

the page that occupies this window after typing

type

public Page type(Keyboard keyboard)
          throws IOException

Simulates typing the specified Keyboard while this element has focus, returning the page contained by this element's window after typing. Note that it may or may not be the same as the original page, depending on the JavaScript event handlers, etc. Note also that for some elements, typing XXXXXXXXXXX submits the enclosed form.

Parameters:

keyboard - the keyboard

Returns:

the page that occupies this window after typing

Throws:

IOException - if an IO error occurs

doType

protected void doType(char c,
                      boolean lastType)

Performs the effective type action, called after the keyPress event and before the keyUp event.

Parameters:

c - the character you with to simulate typing

lastType - is this the last character to type

doType

protected void doType(int keyCode,
                      boolean lastType)

Performs the effective type action, called after the keyPress event and before the keyUp event.

An example of predefined values is KeyboardEvent.DOM_VK_PAGE_DOWN.

Parameters:

keyCode - the key code wish to simulate typing

lastType - is this the last to type

typeDone

protected void typeDone(String newValue,
                        boolean notifyAttributeChangeListeners)

Called from DoTypeProcessor.

Parameters:

newValue - the new value

notifyAttributeChangeListeners - to notify the associated HtmlAttributeChangeListeners

acceptChar

protected boolean acceptChar(char c)

Indicates if the provided character can by "typed" in the element.

Parameters:

c - the character

Returns:

true if it is accepted

isSubmittableByEnter

protected boolean isSubmittableByEnter()

Returns true if clicking Enter (ASCII 10, or '\n') should submit the enclosed form (if any). The default implementation returns false.

Returns:

true if clicking Enter should submit the enclosed form (if any)

getOneHtmlElementByAttribute

public final <E extends HtmlElement> E getOneHtmlElementByAttribute(String elementName,
                                                                    String attributeName,
                                                                    String attributeValue)
                                                             throws ElementNotFoundException

Searches for an element based on the specified criteria, returning the first element which matches said criteria. Only elements which are descendants of this element are included in the search.

Type Parameters:

E - the sub-element type

Parameters:

elementName - the name of the element to search for

attributeName - the name of the attribute to search for

attributeValue - the value of the attribute to search for

Returns:

the first element which matches the specified search criteria

Throws:

ElementNotFoundException - if no element matches the specified search criteria

getElementsByAttribute

public final <E extends HtmlElement> List<E> getElementsByAttribute(String elementName,
                                                                    String attributeName,
                                                                    String attributeValue)

Returns all elements which are descendants of this element and match the specified search criteria.

Type Parameters:

E - the sub-element type

Parameters:

elementName - the name of the element to search for

attributeName - the name of the attribute to search for

attributeValue - the value of the attribute to search for

Returns:

all elements which are descendants of this element and match the specified search criteria

appendChildIfNoneExists

public final HtmlElement appendChildIfNoneExists(String tagName)

Appends a child element to this HTML element with the specified tag name if this HTML element does not already have a child with that tag name. Returns the appended child element, or the first existent child element with the specified tag name if none was appended.

Parameters:

tagName - the tag name of the child to append

Returns:

the added child, or the first existing child if none was added

removeChild

public final void removeChild(String tagName,
                              int i)

Removes the ith child element with the specified tag name from all relationships, if possible.

Parameters:

tagName - the tag name of the child to remove

i - the index of the child to remove

hasEventHandlers

public final boolean hasEventHandlers(String eventName)

INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Returns true if this element has any JavaScript functions that need to be executed when the specified event occurs.

Parameters:

eventName - the name of the event, such as "onclick" or "onblur", etc

Returns:

true if an event handler has been defined otherwise false

addHtmlAttributeChangeListener

public void addHtmlAttributeChangeListener(HtmlAttributeChangeListener listener)

Adds an HtmlAttributeChangeListener to the listener list. The listener is registered for all attributes of this HtmlElement, as well as descendant elements.

Parameters:

listener - the attribute change listener to be added

See Also:

removeHtmlAttributeChangeListener(HtmlAttributeChangeListener)

removeHtmlAttributeChangeListener

public void removeHtmlAttributeChangeListener(HtmlAttributeChangeListener listener)

Removes an HtmlAttributeChangeListener from the listener list. This method should be used to remove HtmlAttributeChangeListener that were registered for all attributes of this HtmlElement, as well as descendant elements.

Parameters:

listener - the attribute change listener to be removed

See Also:

addHtmlAttributeChangeListener(HtmlAttributeChangeListener)

checkChildHierarchy

protected void checkChildHierarchy(Node childNode)
                            throws DOMException

Check for insertion errors for a new child node. This is overridden by derived classes to enforce which types of children are allowed.

Overrides:

checkChildHierarchy in class DomNode

Parameters:

childNode - the new child node that is being inserted below this node

Throws:

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.

setOwningForm

public void setOwningForm(HtmlForm form)

INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Allows the parser to connect to a form that is not a parent of this due to malformed HTML code

Parameters:

form - the owning form

isAttributeCaseSensitive

protected boolean isAttributeCaseSensitive()

Indicates if the attribute names are case sensitive.

Overrides:

isAttributeCaseSensitive in class DomElement

Returns:

false

getLangAttribute

public final String getLangAttribute()

Returns the value of the attribute lang. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute lang or an empty string if that attribute isn't defined

getXmlLangAttribute

public final String getXmlLangAttribute()

Returns the value of the attribute xml:lang. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute xml:lang or an empty string if that attribute isn't defined

getTextDirectionAttribute

public final String getTextDirectionAttribute()

Returns the value of the attribute dir. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute dir or an empty string if that attribute isn't defined

getOnClickAttribute

public final String getOnClickAttribute()

Returns the value of the attribute onclick. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onclick or an empty string if that attribute isn't defined

getOnDblClickAttribute

public final String getOnDblClickAttribute()

Returns the value of the attribute ondblclick. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute ondblclick or an empty string if that attribute isn't defined

getOnMouseDownAttribute

public final String getOnMouseDownAttribute()

Returns the value of the attribute onmousedown. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onmousedown or an empty string if that attribute isn't defined

getOnMouseUpAttribute

public final String getOnMouseUpAttribute()

Returns the value of the attribute onmouseup. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onmouseup or an empty string if that attribute isn't defined

getOnMouseOverAttribute

public final String getOnMouseOverAttribute()

Returns the value of the attribute onmouseover. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onmouseover or an empty string if that attribute isn't defined

getOnMouseMoveAttribute

public final String getOnMouseMoveAttribute()

Returns the value of the attribute onmousemove. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onmousemove or an empty string if that attribute isn't defined

getOnMouseOutAttribute

public final String getOnMouseOutAttribute()

Returns the value of the attribute onmouseout. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onmouseout or an empty string if that attribute isn't defined

getOnKeyPressAttribute

public final String getOnKeyPressAttribute()

Returns the value of the attribute onkeypress. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onkeypress or an empty string if that attribute isn't defined

getOnKeyDownAttribute

public final String getOnKeyDownAttribute()

Returns the value of the attribute onkeydown. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onkeydown or an empty string if that attribute isn't defined

getOnKeyUpAttribute

public final String getOnKeyUpAttribute()

Returns the value of the attribute onkeyup. Refer to the HTML 4.01 documentation for details on the use of this attribute.

Returns:

the value of the attribute onkeyup or an empty string if that attribute isn't defined

getCanonicalXPath

public 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.

Overrides:

getCanonicalXPath in class DomNode

Returns:

the canonical XPath expression which identifies this node

See Also:

DomNode.getByXPath(String)

isHidden

public boolean isHidden()

Returns:

true if the hidden attribute is set.

setHidden

public void setHidden(String hidden)

Sets the hidden property.

Parameters:

hidden - the hidden property

setHidden

public void setHidden(boolean hidden)

Sets the hidden property.

Parameters:

hidden - the hidden property

isDisplayed

public boolean isDisplayed()

Returns true if 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!

Overwritten to support the hidden attribute (html5).

Overrides:

isDisplayed in class DomNode

Returns:

true if the node is visible to the user, false otherwise

See Also:

CSS2 Visibility, CSS2 Display, MSDN Documentation, DomNode.mayBeDisplayed()

getDefaultStyleDisplay

public HtmlElement.DisplayStyle getDefaultStyleDisplay()

INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
Returns the default display style.

Returns:

the default display style

getSrcAttributeNormalized

protected final String getSrcAttributeNormalized()

Helper for src retrieval and normalization.

Returns:

the value of the attribute src with all line breaks removed or an empty string if that attribute isn't defined.

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.

Overrides:

detach in class DomNode

handles

public boolean handles(Event event)

Indicates if the provided event can be applied to this node. Overwrite this.

Overrides:

handles in class DomNode

Parameters:

event - the event

Returns:

false if the event can't be applied

isShiftPressed

protected boolean isShiftPressed()

Returns whether the SHIFT is currently pressed.

Returns:

whether the SHIFT is currently pressed

isCtrlPressed

public boolean isCtrlPressed()

Returns whether the CTRL is currently pressed.

Returns:

whether the CTRL is currently pressed

isAltPressed

public boolean isAltPressed()

Returns whether the ALT is currently pressed.

Returns:

whether the ALT is currently pressed

isValid

public boolean isValid()

Returns whether this element satisfies all form validation constraints set.

Returns:

whether this element satisfies all form validation constraints set

isRequiredSupported

protected boolean isRequiredSupported()

Returns whether this element supports the required constraint.

Returns:

whether this element supports the required constraint

isRequired

public boolean isRequired()

Returns:

the true if the required attribute is set

isOptional

public boolean isOptional()

Returns:

the true if the required attribute is supported and set

setRequired

public void setRequired(boolean required)

Sets the required attribute.

Parameters:

required - the new attribute value

cloneNode

public DomNode cloneNode(boolean deep)

Specified by:

cloneNode in interface Node

Overrides:

cloneNode in class DomElement