1 /*
2 * Copyright (c) 2002-2025 Gargoyle Software Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 package org.htmlunit.javascript.host.dom;
16
17 import org.htmlunit.html.DomElement;
18 import org.htmlunit.javascript.HtmlUnitScriptable;
19 import org.htmlunit.javascript.configuration.JsxClass;
20 import org.htmlunit.javascript.configuration.JsxFunction;
21 import org.htmlunit.util.XmlUtils;
22 import org.htmlunit.xpath.xml.utils.PrefixResolver;
23
24 /**
25 * A JavaScript object for {@code XPathNSResolver}.
26 *
27 * @author Ahmed Ashour
28 * @author Chuck Dumont
29 * @author Ronald Brill
30 */
31 @JsxClass(className = "NativeXPathNSResolver", isJSObject = false)
32 public class XPathNSResolver extends HtmlUnitScriptable implements PrefixResolver {
33
34 private Node element_;
35
36 /**
37 * Sets the element to start lookup from.
38 * @param element {@link org.htmlunit.javascript.host.html.HTMLElement}
39 * or {@link org.htmlunit.javascript.host.Element} to start lookup from
40 */
41 public void setElement(final Node element) {
42 element_ = element;
43 }
44
45 /**
46 * Look up the namespace URI associated to the given namespace prefix.
47 * @param prefix the prefix to look for
48 * @return the associated namespace URI or null if none is found
49 */
50 @JsxFunction
51 public String lookupNamespaceURI(final String prefix) {
52 return XmlUtils.lookupNamespaceURI((DomElement) element_.getDomNodeOrDie(), prefix);
53 }
54
55 /**
56 * {@inheritDoc}
57 */
58 @Override
59 public String getNamespaceForPrefix(final String prefix) {
60 return lookupNamespaceURI(prefix);
61 }
62
63 /**
64 * {@inheritDoc}
65 */
66 @Override
67 public String getNamespaceForPrefix(final String prefix, final org.w3c.dom.Node context) {
68 throw new UnsupportedOperationException();
69 }
70
71 /**
72 * {@inheritDoc}
73 */
74 @Override
75 public boolean handlesNullPrefixes() {
76 return false;
77 }
78
79 /**
80 * {@inheritDoc}
81 */
82 @Override
83 public Object getDefaultValue(final Class<?> hint) {
84 return element_.getDefaultValue(hint);
85 }
86 }