com.gargoylesoftware.htmlunit.activex.javascript.msxml

Class XMLDOMNodeList

java.lang.Object

net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

com.gargoylesoftware.htmlunit.javascript.HtmlUnitScriptable

com.gargoylesoftware.htmlunit.activex.javascript.msxml.MSXMLScriptable

com.gargoylesoftware.htmlunit.activex.javascript.msxml.XMLDOMNodeList

All Implemented Interfaces:

Serializable, Cloneable, net.sourceforge.htmlunit.corejs.javascript.Callable, net.sourceforge.htmlunit.corejs.javascript.ConstProperties, net.sourceforge.htmlunit.corejs.javascript.Constructable, net.sourceforge.htmlunit.corejs.javascript.debug.DebuggableObject, net.sourceforge.htmlunit.corejs.javascript.Function, net.sourceforge.htmlunit.corejs.javascript.Scriptable, net.sourceforge.htmlunit.corejs.javascript.SymbolScriptable, NodeList

Direct Known Subclasses:

XMLDOMSelection

public class XMLDOMNodeList
extends MSXMLScriptable
implements net.sourceforge.htmlunit.corejs.javascript.Function, NodeList

A JavaScript object for MSXML's (ActiveX) XMLDOMNodeList.
Supports iteration through the live collection, in addition to indexed access.

Author:

Daniel Gredler, Marc Guillemot, Chris Erskine, Ahmed Ashour, Frank Danek, Ronald Brill

See Also:

MSDN documentation, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	XMLDOMNodeList.EffectOnCache Cache effect of some changes.

Nested classes/interfaces inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

net.sourceforge.htmlunit.corejs.javascript.ScriptableObject.KeyComparator

Field Summary

Fields inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

CONST, DONTENUM, EMPTY, PERMANENT, READONLY, UNINITIALIZED_CONST

Fields inherited from interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

NOT_FOUND

Constructor Summary

Constructors

Modifier	Constructor and Description
	XMLDOMNodeList() Creates an instance.
	XMLDOMNodeList(DomNode parentScope, boolean attributeChangeSensitive, String description) Creates an instance.
protected	XMLDOMNodeList(DomNode parentScope, List<DomNode> initialElements) Constructs an instance with an initial cache value.

Method Summary

Modifier and Type	Method and Description
protected void	addElementIds(List<String> idList, List<DomNode> elements) Adds the ids of the collection's elements to the idList.
Object	call(net.sourceforge.htmlunit.corejs.javascript.Context cx, net.sourceforge.htmlunit.corejs.javascript.Scriptable scope, net.sourceforge.htmlunit.corejs.javascript.Scriptable thisObj, Object[] args)
protected List<DomNode>	computeElements() Returns the elements whose associated host objects are available through this collection.
net.sourceforge.htmlunit.corejs.javascript.Scriptable	construct(net.sourceforge.htmlunit.corejs.javascript.Context cx, net.sourceforge.htmlunit.corejs.javascript.Scriptable scope, Object[] args)
static XMLDOMNodeList	emptyCollection(MSXMLScriptable parentScope) Gets an empty collection.
protected Object	equivalentValues(Object other) Called for the js "==".
Object	get(int index, net.sourceforge.htmlunit.corejs.javascript.Scriptable start) Returns the element at the specified index, or Scriptable.NOT_FOUND if the index is invalid.
protected Iterable<DomNode>	getCandidates() Gets the DOM node that have to be examined to see if they are matching.
protected XMLDOMNodeList.EffectOnCache	getEffectOnCache(HtmlAttributeChangeEvent event) Gets the effect of the change on an attribute of the reference node on this collection's cache.
protected List<DomNode>	getElements() Gets the HTML elements from cache or retrieve them at first call.
Object[]	getIds() .
int	getLength()
protected net.sourceforge.htmlunit.corejs.javascript.Scriptable	getScriptableForElement(Object object) Gets the scriptable for the provided element that may already be the right scriptable.
protected Object	getWithPreemption(String name) Returns the element or elements that match the specified key.
boolean	has(int index, net.sourceforge.htmlunit.corejs.javascript.Scriptable start)
boolean	has(String name, net.sourceforge.htmlunit.corejs.javascript.Scriptable start)
protected boolean	isMatching(DomNode node) Indicates if the node should belong to the collection.
Node	item(int index)
Object	item(Object index) Allows random access to individual nodes within the collection.
Object	nextNode() Returns the next node in the collection.
void	reset() Resets the iterator accessed via nextNode().
String	toString()

Methods inherited from class com.gargoylesoftware.htmlunit.activex.javascript.msxml.MSXMLScriptable

getClassName, getEnvironment, getPrototype, makeScriptableFor, setEnvironment, setParentScope

Methods inherited from class com.gargoylesoftware.htmlunit.javascript.HtmlUnitScriptable

clone, get, getBrowserVersion, getDefaultValue, getDomNodeOrDie, getDomNodeOrNull, getScriptableFor, getStartingScope, getWindow, getWindow, hasInstance, initParentScope, put, setClassName, setDomNode, setDomNode

Methods inherited from class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

applyDescriptorToAttributeBitset, associateValue, avoidObjectDetection, buildDataDescriptor, callMethod, callMethod, checkPropertyChange, checkPropertyDefinition, defineClass, defineClass, defineClass, defineConst, defineConstProperty, defineFunctionProperties, defineOwnProperties, defineOwnProperty, defineOwnProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, defineProperty, delete, delete, delete, deleteProperty, deleteProperty, ensureScriptable, ensureScriptableObject, ensureSymbolScriptable, get, get, getAllIds, getArrayPrototype, getAssociatedValue, getAttributes, getAttributes, getAttributes, getAttributes, getAttributes, getClassPrototype, getDefaultValue, getExternalArrayData, getExternalArrayLength, getFunctionPrototype, getGeneratorFunctionPrototype, getGetterOrSetter, getGetterOrSetter, getObjectPrototype, getOwnPropertyDescriptor, getParentScope, getProperty, getProperty, getProperty, getPropertyIds, getPrototype, getTopLevelScope, getTopScopeValue, getTypedProperty, getTypedProperty, getTypeOf, has, hasProperty, hasProperty, hasProperty, isAccessorDescriptor, isConst, isDataDescriptor, isEmpty, isExtensible, isFalse, isGenericDescriptor, isGetterOrSetter, isSealed, isTrue, preventExtensions, put, put, putConst, putConstProperty, putProperty, putProperty, putProperty, querySlot, redefineProperty, sameValue, sealObject, setAttributes, setAttributes, setAttributes, setAttributes, setAttributes, setCommonDescriptorProperties, setExternalArrayData, setGetterOrSetter, setPrototype, size

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

delete, delete, get, getClassName, getDefaultValue, getParentScope, getPrototype, hasInstance, put, put, setParentScope, setPrototype

Constructor Detail

XMLDOMNodeList

public XMLDOMNodeList()

Creates an instance.

XMLDOMNodeList

public XMLDOMNodeList(DomNode parentScope,
                      boolean attributeChangeSensitive,
                      String description)

Creates an instance.

Parameters:

parentScope - parent scope

attributeChangeSensitive - indicates if the content of the collection may change when an attribute of a descendant node of parentScope changes (attribute added, modified or removed)

description - a text useful for debugging

XMLDOMNodeList

protected XMLDOMNodeList(DomNode parentScope,
                         List<DomNode> initialElements)

Constructs an instance with an initial cache value.

Parameters:

parentScope - the parent scope, on which we listen for changes

initialElements - the initial content for the cache

Method Detail

getLength

public final int getLength()

Specified by:

getLength in interface NodeList

item

public final Object item(Object index)

Allows random access to individual nodes within the collection.

Parameters:

index - the index of the item within the collection; the first item is zero

Returns:

the element or elements corresponding to the specified index or key

nextNode

public Object nextNode()

Returns the next node in the collection.

Returns:

the next node in the collection

reset

public void reset()

Resets the iterator accessed via nextNode().

emptyCollection

public static XMLDOMNodeList emptyCollection(MSXMLScriptable parentScope)

Gets an empty collection.

Parameters:

parentScope - the current scope

Returns:

an empty collection

construct

public final net.sourceforge.htmlunit.corejs.javascript.Scriptable construct(net.sourceforge.htmlunit.corejs.javascript.Context cx,
                                                                             net.sourceforge.htmlunit.corejs.javascript.Scriptable scope,
                                                                             Object[] args)

Specified by:

construct in interface net.sourceforge.htmlunit.corejs.javascript.Constructable

Specified by:

construct in interface net.sourceforge.htmlunit.corejs.javascript.Function

call

public Object call(net.sourceforge.htmlunit.corejs.javascript.Context cx,
                   net.sourceforge.htmlunit.corejs.javascript.Scriptable scope,
                   net.sourceforge.htmlunit.corejs.javascript.Scriptable thisObj,
                   Object[] args)

Specified by:

call in interface net.sourceforge.htmlunit.corejs.javascript.Callable

Specified by:

call in interface net.sourceforge.htmlunit.corejs.javascript.Function

get

public final Object get(int index,
                        net.sourceforge.htmlunit.corejs.javascript.Scriptable start)

Returns the element at the specified index, or Scriptable.NOT_FOUND if the index is invalid.

Specified by:

get in interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

Overrides:

get in class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

getElements

protected List<DomNode> getElements()

Gets the HTML elements from cache or retrieve them at first call.

Returns:

the list of HtmlElement contained in this collection

computeElements

protected List<DomNode> computeElements()

Returns the elements whose associated host objects are available through this collection.

Returns:

the elements whose associated host objects are available through this collection

getCandidates

protected Iterable<DomNode> getCandidates()

Gets the DOM node that have to be examined to see if they are matching. Default implementation looks at all descendants of reference node.

Returns:

the nodes

isMatching

protected boolean isMatching(DomNode node)

Indicates if the node should belong to the collection. Belongs to the refactoring effort to improve HTMLCollection's performance.

Parameters:

node - the node to test. Will be a child node of the reference node.

Returns:

false here as subclasses for concrete collections should decide it.

getWithPreemption

protected Object getWithPreemption(String name)

Returns the element or elements that match the specified key. If it is the name of a property, the property value is returned. If it is the id of an element in the array, that element is returned. Finally, if it is the name of an element or elements in the array, then all those elements are returned. Otherwise, Scriptable.NOT_FOUND is returned.

Called by HtmlUnitScriptable.get(String, Scriptable) to allow retrieval of the property before the prototype chain is searched.

IMPORTANT: This method is invoked *very* often by Rhino. If you override this method, the implementation needs to be as fast as possible!

Overrides:

getWithPreemption in class HtmlUnitScriptable

Parameters:

name - the property name

Returns:

Scriptable.NOT_FOUND if not found

toString

public String toString()

Overrides:

toString in class Object

equivalentValues

protected Object equivalentValues(Object other)

Called for the js "==".

Overrides:

equivalentValues in class HtmlUnitScriptable

has

public boolean has(int index,
                   net.sourceforge.htmlunit.corejs.javascript.Scriptable start)

Specified by:

has in interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

Overrides:

has in class HtmlUnitScriptable

has

public boolean has(String name,
                   net.sourceforge.htmlunit.corejs.javascript.Scriptable start)

Specified by:

has in interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

Overrides:

has in class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

getIds

public Object[] getIds()

.

Specified by:

getIds in interface net.sourceforge.htmlunit.corejs.javascript.Scriptable

Overrides:

getIds in class net.sourceforge.htmlunit.corejs.javascript.ScriptableObject

addElementIds

protected void addElementIds(List<String> idList,
                             List<DomNode> elements)

Adds the ids of the collection's elements to the idList.

Parameters:

idList - the list to add the ids to

elements - the collection's elements

getEffectOnCache

protected XMLDOMNodeList.EffectOnCache getEffectOnCache(HtmlAttributeChangeEvent event)

Gets the effect of the change on an attribute of the reference node on this collection's cache.

Parameters:

event - the change event

Returns:

the effect on cache

item

public Node item(int index)

Specified by:

item in interface NodeList

getScriptableForElement

protected net.sourceforge.htmlunit.corejs.javascript.Scriptable getScriptableForElement(Object object)

Gets the scriptable for the provided element that may already be the right scriptable.

Parameters:

object - the object for which to get the scriptable

Returns:

the scriptable