org.apache.html.dom

Class HTMLDocumentImpl

java.lang.Object

org.apache.xerces.dom.NodeImpl

org.apache.xerces.dom.ChildNode

org.apache.xerces.dom.ParentNode

org.apache.xerces.dom.CoreDocumentImpl

org.apache.xerces.dom.DocumentImpl

org.apache.html.dom.HTMLDocumentImpl

All Implemented Interfaces:

Serializable, Cloneable, Document, DocumentEvent, EventTarget, org.w3c.dom.html.HTMLDocument, Node, NodeList, org.w3c.dom.ranges.DocumentRange, org.w3c.dom.traversal.DocumentTraversal

public class HTMLDocumentImpl
extends DocumentImpl
implements org.w3c.dom.html.HTMLDocument

Implements an HTML document. Provides access to the top level element in the document, its body and title.

Several methods create new nodes of all basic types (comment, text, element, etc.). These methods create new nodes but do not place them in the document tree. The nodes may be placed in the document tree using Node.appendChild(org.w3c.dom.Node) or Node.insertBefore(org.w3c.dom.Node, org.w3c.dom.Node), or they may be placed in some other document tree.

Note: <FRAMESET> documents are not supported at the moment, neither are direct document writing (open(), write(java.lang.String)) and HTTP attribute methods (getURL(), getCookie()).

Version:

$Revision$ $Date$

Author:

Assaf Arkin

See Also:

HTMLDocument, Serialized Form

Field Summary

Fields inherited from class org.apache.xerces.dom.DocumentImpl

eventListeners, iteratorReferenceQueue, iterators, mutationEvents, rangeReferenceQueue, ranges

Fields inherited from class org.apache.xerces.dom.CoreDocumentImpl

actualEncoding, allowGrammarAccess, changes, docElement, docType, encoding, errorChecking, fDocumentURI, identifiers, standalone, userData, version, xmlVersionChanged

Fields inherited from class org.apache.xerces.dom.ParentNode

firstChild, fNodeListCache, ownerDocument

Fields inherited from class org.apache.xerces.dom.ChildNode

nextSibling, previousSibling

Fields inherited from class org.apache.xerces.dom.NodeImpl

DOCUMENT_POSITION_CONTAINS, DOCUMENT_POSITION_DISCONNECTED, DOCUMENT_POSITION_FOLLOWING, DOCUMENT_POSITION_IMPLEMENTATION_SPECIFIC, DOCUMENT_POSITION_IS_CONTAINED, DOCUMENT_POSITION_PRECEDING, ELEMENT_DEFINITION_NODE, FIRSTCHILD, flags, HASSTRING, ID, IGNORABLEWS, NORMALIZED, OWNED, ownerNode, READONLY, SPECIFIED, SYNCCHILDREN, SYNCDATA, TREE_POSITION_ANCESTOR, TREE_POSITION_DESCENDANT, TREE_POSITION_DISCONNECTED, TREE_POSITION_EQUIVALENT, TREE_POSITION_FOLLOWING, TREE_POSITION_PRECEDING, TREE_POSITION_SAME_NODE

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

Constructor and Description
HTMLDocumentImpl()

Method Summary

Modifier and Type	Method and Description
protected boolean	canRenameElements(String newNamespaceURI, String newNodeName, ElementImpl el)
Node	cloneNode(boolean deep) Deep-clone a document, including fixing ownerDoc for the cloned children.
void	close()
Attr	createAttribute(String name) Creates an Attribute having this Document as its OwnerDoc.
Element	createElement(String tagName) Factory method; creates an Element having this Document as its OwnerDoc.
Element	createElementNS(String namespaceURI, String qualifiedName) Introduced in DOM Level 2.
Element	createElementNS(String namespaceURI, String qualifiedName, String localpart) Xerces-specific constructor.
org.w3c.dom.html.HTMLCollection	getAnchors()
org.w3c.dom.html.HTMLCollection	getApplets()
org.w3c.dom.html.HTMLElement	getBody()
String	getCookie()
Element	getDocumentElement() Convenience method, allowing direct access to the child node which is considered the root of the actual document content.
String	getDomain()
Element	getElementById(String elementId) Introduced in DOM Level 2 Returns the Element whose ID is given by elementId.
NodeList	getElementsByName(String elementName)
NodeList	getElementsByTagName(String tagName) Return a live collection of all descendent Elements (not just immediate children) having the specified tag name.
NodeList	getElementsByTagNameNS(String namespaceURI, String localName) Introduced in DOM Level 2.
org.w3c.dom.html.HTMLCollection	getForms()
org.w3c.dom.html.HTMLElement	getHead() Obtains the <HEAD> element in the document, creating one if does not exist before.
org.w3c.dom.html.HTMLCollection	getImages()
org.w3c.dom.html.HTMLCollection	getLinks()
String	getReferrer()
String	getTitle()
String	getURL()
void	open()
void	setBody(org.w3c.dom.html.HTMLElement newBody)
void	setCookie(String cookie)
void	setTitle(String newTitle)
void	write(String text)
void	writeln(String text)

Methods inherited from class org.apache.xerces.dom.DocumentImpl

addEventListener, copyEventListeners, createEvent, createNodeIterator, createNodeIterator, createRange, createTreeWalker, createTreeWalker, dispatchAggregateEvents, dispatchAggregateEvents, dispatchEvent, dispatchEventToSubtree, dispatchingEventToSubtree, getEventListeners, getImplementation, removeEventListener, saveEnclosingAttr, setEventListeners

Methods inherited from class org.apache.xerces.dom.CoreDocumentImpl

abort, adoptNode, callUserDataHandlers, changed, changes, checkDOMNSErr, checkNamespaceWF, checkQName, clearIdentifiers, clone, cloneNode, createAttributeNS, createAttributeNS, createCDATASection, createComment, createDocumentFragment, createDocumentType, createElementDefinition, createEntity, createEntityReference, createNotation, createProcessingInstruction, createTextNode, getAsync, getBaseURI, getDoctype, getDocumentURI, getDomConfig, getEncoding, getErrorChecking, getFeature, getIdentifier, getIdentifiers, getInputEncoding, getNodeName, getNodeNumber, getNodeNumber, getNodeType, getOwnerDocument, getStandalone, getStrictErrorChecking, getTextContent, getUserData, getUserData, getUserDataRecord, getVersion, getXmlEncoding, getXmlStandalone, getXmlVersion, importNode, insertBefore, isKidOK, isValidQName, isXMLName, load, loadXML, normalizeDocument, putIdentifier, removeChild, removeIdentifier, renameNode, replaceChild, saveXML, setAsync, setDocumentURI, setEncoding, setErrorChecking, setInputEncoding, setStandalone, setStrictErrorChecking, setTextContent, setUserData, setUserData, setVersion, setXmlEncoding, setXmlStandalone, setXmlVersion, undeferChildren

Methods inherited from class org.apache.xerces.dom.ParentNode

getChildNodes, getChildNodesUnoptimized, getFirstChild, getLastChild, getLength, hasChildNodes, isEqualNode, item, normalize, setOwnerDocument, setReadOnly, synchronizeChildren

Methods inherited from class org.apache.xerces.dom.ChildNode

getNextSibling, getParentNode, getPreviousSibling

Methods inherited from class org.apache.xerces.dom.NodeImpl

addEventListener, appendChild, compareDocumentPosition, compareTreePosition, dispatchEvent, getAttributes, getContainer, getLocalName, getNamespaceURI, getNodeValue, getPrefix, getReadOnly, getUserData, getUserData, getUserDataRecord, hasAttributes, isDefaultNamespace, isSameNode, isSupported, lookupNamespaceURI, lookupPrefix, needsSyncChildren, removeEventListener, setNodeValue, setPrefix, setUserData, setUserData, synchronizeData, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.w3c.dom.Document

adoptNode, createAttributeNS, createCDATASection, createComment, createDocumentFragment, createEntityReference, createProcessingInstruction, createTextNode, getDoctype, getDocumentURI, getDomConfig, getImplementation, getInputEncoding, getStrictErrorChecking, getXmlEncoding, getXmlStandalone, getXmlVersion, importNode, normalizeDocument, renameNode, setDocumentURI, setStrictErrorChecking, setXmlStandalone, setXmlVersion

Methods inherited from interface org.w3c.dom.Node

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

Constructor Detail

HTMLDocumentImpl

public HTMLDocumentImpl()

Method Detail

getDocumentElement

public Element getDocumentElement()

Description copied from class: CoreDocumentImpl

Convenience method, allowing direct access to the child node which is considered the root of the actual document content. For HTML, where it is legal to have more than one Element at the top level of the document, we pick the one with the tagName "HTML". For XML there should be only one top-level (HTML not yet supported.)

Specified by:

getDocumentElement in interface Document

Overrides:

getDocumentElement in class CoreDocumentImpl

getHead

public org.w3c.dom.html.HTMLElement getHead()

Obtains the <HEAD> element in the document, creating one if does not exist before. The <HEAD> element is the first element in the <HTML> in the document. The <HTML> element is obtained by calling getDocumentElement(). If the element does not exist, one is created.

Called by getTitle(), setTitle(java.lang.String), getBody() and setBody(org.w3c.dom.html.HTMLElement) to assure the document has the <HEAD> element correctly placed.

Returns:

The <HEAD> element

getTitle

public String getTitle()

Specified by:

getTitle in interface org.w3c.dom.html.HTMLDocument

setTitle

public void setTitle(String newTitle)

Specified by:

setTitle in interface org.w3c.dom.html.HTMLDocument

getBody

public org.w3c.dom.html.HTMLElement getBody()

Specified by:

getBody in interface org.w3c.dom.html.HTMLDocument

setBody

public void setBody(org.w3c.dom.html.HTMLElement newBody)

Specified by:

setBody in interface org.w3c.dom.html.HTMLDocument

getElementById

public Element getElementById(String elementId)

Description copied from class: CoreDocumentImpl

Introduced in DOM Level 2 Returns the Element whose ID is given by elementId. If no such element exists, returns null. Behavior is not defined if more than one element has this ID.

Note: The DOM implementation must have information that says which attributes are of type ID. Attributes with the name "ID" are not of type ID unless so defined. Implementations that do not know whether attributes are of type ID or not are expected to return null.

Specified by:

getElementById in interface Document

Overrides:

getElementById in class CoreDocumentImpl

See Also:

CoreDocumentImpl.getIdentifier(java.lang.String)

getElementsByName

public NodeList getElementsByName(String elementName)

Specified by:

getElementsByName in interface org.w3c.dom.html.HTMLDocument

getElementsByTagName

public final NodeList getElementsByTagName(String tagName)

Description copied from class: CoreDocumentImpl

Return a live collection of all descendent Elements (not just immediate children) having the specified tag name.

Specified by:

getElementsByTagName in interface Document

Overrides:

getElementsByTagName in class CoreDocumentImpl

Parameters:

tagName - The type of Element we want to gather. "*" will be taken as a wildcard, meaning "all elements in the document."

See Also:

DeepNodeListImpl

getElementsByTagNameNS

public final NodeList getElementsByTagNameNS(String namespaceURI,
                                             String localName)

Description copied from class: CoreDocumentImpl

Introduced in DOM Level 2.

Returns a NodeList of all the Elements with a given local name and namespace URI in the order in which they would be encountered in a preorder traversal of the Document tree.

Specified by:

getElementsByTagNameNS in interface Document

Overrides:

getElementsByTagNameNS in class CoreDocumentImpl

Parameters:

namespaceURI - The namespace URI of the elements to match on. The special value "*" matches all namespaces. When it is null or an empty string, this method behaves like getElementsByTagName.

localName - The local name of the elements to match on. The special value "*" matches all local names.

Returns:

NodeList A new NodeList object containing all the matched Elements.

createElementNS

public Element createElementNS(String namespaceURI,
                               String qualifiedName,
                               String localpart)
                        throws DOMException

Xerces-specific constructor. "localName" is passed in, so we don't need to create a new String for it.

Overrides:

createElementNS in class CoreDocumentImpl

Parameters:

namespaceURI - The namespace URI of the element to create.

qualifiedName - The qualified name of the element type to instantiate.

localpart - The local name of the element to instantiate.

Returns:

Element A new Element object with the following attributes:

Throws:

DOMException - INVALID_CHARACTER_ERR: Raised if the specified name contains an invalid character.

createElementNS

public Element createElementNS(String namespaceURI,
                               String qualifiedName)

Description copied from class: CoreDocumentImpl

Introduced in DOM Level 2.

Creates an element of the given qualified name and namespace URI. If the given namespaceURI is null or an empty string and the qualifiedName has a prefix that is "xml", the created element is bound to the predefined namespace "http://www.w3.org/XML/1998/namespace" [Namespaces].

Specified by:

createElementNS in interface Document

Overrides:

createElementNS in class CoreDocumentImpl

Parameters:

namespaceURI - The namespace URI of the element to create.

qualifiedName - The qualified name of the element type to instantiate.

Returns:

Element A new Element object with the following attributes:

createElement

public Element createElement(String tagName)
                      throws DOMException

Description copied from class: CoreDocumentImpl

Factory method; creates an Element having this Document as its OwnerDoc.

Specified by:

createElement in interface Document

Overrides:

createElement in class CoreDocumentImpl

Parameters:

tagName - The name of the element type to instantiate. For XML, this is case-sensitive. For HTML, the tagName parameter may be provided in any case, but it must be mapped to the canonical uppercase form by the DOM implementation.

Throws:

DOMException

createAttribute

public Attr createAttribute(String name)
                     throws DOMException

Creates an Attribute having this Document as its OwnerDoc. Overrides CoreDocumentImpl.createAttribute(java.lang.String) and returns and attribute whose name is lower case.

Specified by:

createAttribute in interface Document

Overrides:

createAttribute in class CoreDocumentImpl

Parameters:

name - The name of the attribute

Returns:

An attribute whose name is all lower case

Throws:

DOMException(INVALID_NAME_ERR) - if the attribute name is not acceptable

DOMException

getReferrer

public String getReferrer()

Specified by:

getReferrer in interface org.w3c.dom.html.HTMLDocument

getDomain

public String getDomain()

Specified by:

getDomain in interface org.w3c.dom.html.HTMLDocument

getURL

public String getURL()

Specified by:

getURL in interface org.w3c.dom.html.HTMLDocument

getCookie

public String getCookie()

Specified by:

getCookie in interface org.w3c.dom.html.HTMLDocument

setCookie

public void setCookie(String cookie)

Specified by:

setCookie in interface org.w3c.dom.html.HTMLDocument

getImages

public org.w3c.dom.html.HTMLCollection getImages()

Specified by:

getImages in interface org.w3c.dom.html.HTMLDocument

getApplets

public org.w3c.dom.html.HTMLCollection getApplets()

Specified by:

getApplets in interface org.w3c.dom.html.HTMLDocument

getLinks

public org.w3c.dom.html.HTMLCollection getLinks()

Specified by:

getLinks in interface org.w3c.dom.html.HTMLDocument

getForms

public org.w3c.dom.html.HTMLCollection getForms()

Specified by:

getForms in interface org.w3c.dom.html.HTMLDocument

getAnchors

public org.w3c.dom.html.HTMLCollection getAnchors()

Specified by:

getAnchors in interface org.w3c.dom.html.HTMLDocument

open

public void open()

Specified by:

open in interface org.w3c.dom.html.HTMLDocument

close

public void close()

Specified by:

close in interface org.w3c.dom.html.HTMLDocument

write

public void write(String text)

Specified by:

write in interface org.w3c.dom.html.HTMLDocument

writeln

public void writeln(String text)

Specified by:

writeln in interface org.w3c.dom.html.HTMLDocument

cloneNode

public Node cloneNode(boolean deep)

Description copied from class: DocumentImpl

Deep-clone a document, including fixing ownerDoc for the cloned children. Note that this requires bypassing the WRONG_DOCUMENT_ERR protection. I've chosen to implement it by calling importNode which is DOM Level 2.

Specified by:

cloneNode in interface Node

Overrides:

cloneNode in class DocumentImpl

Parameters:

deep - boolean, iff true replicate children

Returns:

org.w3c.dom.Node

See Also:

Example: Cloning a Text node will copy both the node and the text it contains.

Example: Cloning something that has children -- Element or Attr, for example -- will _not_ clone those children unless a "deep clone" has been requested. A shallow clone of an Attr node will yield an empty Attr of the same name.

NOTE: Clones will always be read/write, even if the node being cloned is read-only, to permit applications using only the DOM API to obtain editable copies of locked portions of the tree.

canRenameElements

protected boolean canRenameElements(String newNamespaceURI,
                                    String newNodeName,
                                    ElementImpl el)

Overrides:

canRenameElements in class CoreDocumentImpl