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/*
* Copyright (c) 2002-2024 Gargoyle Software Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.htmlunit.javascript.host;
import org.htmlunit.corejs.javascript.Scriptable;
import org.htmlunit.html.DomElement;
import org.htmlunit.html.DomNode;
import org.htmlunit.javascript.HtmlUnitScriptable;
import org.htmlunit.javascript.JavaScriptEngine;
import org.htmlunit.javascript.configuration.JsxClass;
import org.htmlunit.javascript.configuration.JsxConstructor;
import org.htmlunit.javascript.configuration.JsxFunction;
import org.htmlunit.javascript.configuration.JsxGetter;
import org.htmlunit.javascript.configuration.JsxSymbol;
import org.htmlunit.javascript.host.dom.Attr;
import org.htmlunit.javascript.host.dom.Node;
/**
* A collection of nodes that can be accessed by name. String comparisons in this class are case-insensitive when
* used with an {@link org.htmlunit.html.HtmlElement},
* but case-sensitive when used with a {@link org.htmlunit.html.DomElement}.
*
* @author Daniel Gredler
* @author Ahmed Ashour
* @author Marc Guillemot
* @author Ronald Brill
* @author Frank Danek
* @see DOM Level 2 Core Spec
* @see IXMLDOMNamedNodeMap
*/
@JsxClass
public class NamedNodeMap extends HtmlUnitScriptable {
private final org.w3c.dom.NamedNodeMap attributes_;
/**
* We need default constructors to build the prototype instance.
*/
public NamedNodeMap() {
super();
attributes_ = null;
}
/**
* JavaScript constructor.
*/
@JsxConstructor
public void jsConstructor() {
// nothing to do
}
/**
* Creates a new named node map for the specified element.
*
* @param element the owning element
*/
public NamedNodeMap(final DomElement element) {
super();
setParentScope(element.getScriptableObject());
setPrototype(getPrototype(getClass()));
attributes_ = element.getAttributes();
setDomNode(element, false);
}
/**
* Returns the element at the specified index, or {@link #NOT_FOUND} if the index is invalid.
*
* {@inheritDoc}
*/
@Override
public final Object get(final int index, final Scriptable start) {
final NamedNodeMap startMap = (NamedNodeMap) start;
final Object response = startMap.item(index);
if (response != null) {
return response;
}
return NOT_FOUND;
}
/**
* {@inheritDoc}
*/
@Override
public Object get(final String name, final Scriptable start) {
Object response = super.get(name, start);
if (response != NOT_FOUND) {
return response;
}
response = getNamedItem(name);
if (response != null) {
return response;
}
return NOT_FOUND;
}
/**
* INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.
*
* Gets the specified attribute but does not handle the synthetic class attribute for IE.
* @see #getNamedItem(String)
*
* @param name attribute name
* @return the attribute node, {@code null} if the attribute is not defined
*/
public HtmlUnitScriptable getNamedItemWithoutSytheticClassAttr(final String name) {
if (attributes_ != null) {
final DomNode attr = (DomNode) attributes_.getNamedItem(name);
if (attr != null) {
return attr.getScriptableObject();
}
}
return null;
}
/**
* Gets the specified attribute.
* @param name attribute name
* @return the attribute node, {@code null} if the attribute is not defined
*/
@JsxFunction
public HtmlUnitScriptable getNamedItem(final String name) {
return getNamedItemWithoutSytheticClassAttr(name);
}
/**
* Gets the specified attribute.
* @param namespaceURI the namespace URI of the node to retrieve.
* @param localName the local name of the node to retrieve.
* @return the attribute node, {@code null} if the attribute is not defined
*/
@JsxFunction
public Node getNamedItemNS(final String namespaceURI, final String localName) {
if (attributes_ != null) {
final DomNode attr = (DomNode) attributes_.getNamedItemNS(namespaceURI, localName);
if (attr != null) {
return attr.getScriptableObject();
}
}
return null;
}
/**
* Sets the specified attribute.
* @param node the attribute
*/
@JsxFunction
public void setNamedItem(final Node node) {
attributes_.setNamedItem(node.getDomNodeOrDie());
}
/**
* Sets the specified attribute.
* @param node the attribute
*/
@JsxFunction
public void setNamedItemNS(final Node node) {
attributes_.setNamedItemNS(node.getDomNodeOrDie());
}
/**
* Removes the specified attribute.
* @param name the name of the item to remove
*/
@JsxFunction
public void removeNamedItem(final String name) {
attributes_.removeNamedItem(name);
}
/**
* Removes the specified attribute.
* @param namespaceURI the namespace URI of the node to retrieve.
* @param localName the local name of the node to retrieve.
* @return the attribute node, {@code null} if the attribute is not defined
*/
@JsxFunction
public Attr removeNamedItemNS(final String namespaceURI, final String localName) {
return (Attr) attributes_.removeNamedItemNS(namespaceURI, localName);
}
/**
* Returns the item at the specified index.
* @param index the index
* @return the item at the specified index
*/
@JsxFunction
public HtmlUnitScriptable item(final int index) {
final DomNode attr = (DomNode) attributes_.item(index);
if (attr != null) {
return attr.getScriptableObject();
}
return null;
}
/**
* Returns the number of attributes in this named node map.
* @return the number of attributes in this named node map
*/
@JsxGetter
public int getLength() {
return attributes_.getLength();
}
/**
* {@inheritDoc}
*/
@Override
public boolean has(final int index, final Scriptable start) {
return index >= 0 && index < getLength();
}
@JsxSymbol
public Scriptable iterator() {
return JavaScriptEngine.newArrayIteratorTypeValues(getParentScope(), this);
}
}