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Java > Open Source Codes > org > apache > batik > css > engine > sac > CSSIdCondition


1 /*
2
3    Copyright 2002 The Apache Software Foundation
4
5    Licensed under the Apache License, Version 2.0 (the "License");
6    you may not use this file except in compliance with the License.
7    You may obtain a copy of the License at
8
9        http://www.apache.org/licenses/LICENSE-2.0
10
11    Unless required by applicable law or agreed to in writing, software
12    distributed under the License is distributed on an "AS IS" BASIS,
13    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14    See the License for the specific language governing permissions and
15    limitations under the License.
16
17  */
18 package org.apache.batik.css.engine.sac;
19
20 import java.util.Set JavaDoc;
21
22 import org.apache.batik.css.engine.CSSStylableElement;
23 import org.w3c.dom.Element JavaDoc;
24
25 /**
26  * This class provides an implementation of the
27  * {@link org.w3c.css.sac.AttributeCondition} interface.
28  *
29  * @author <a HREF="mailto:stephane@hillion.org">Stephane Hillion</a>
30  * @version $Id: CSSIdCondition.java,v 1.4 2004/08/18 07:12:51 vhardy Exp $
31  */
32
33 public class CSSIdCondition extends AbstractAttributeCondition {
34
35     /**
36      * The id attribute namespace URI.
37      */
38     protected String JavaDoc namespaceURI;
39
40     /**
41      * The id attribute local name.
42      */
43     protected String JavaDoc localName;
44
45     /**
46      * Creates a new CSSAttributeCondition object.
47      */
48     public CSSIdCondition(String JavaDoc ns, String JavaDoc ln, String JavaDoc value) {
49     super(value);
50         namespaceURI = ns;
51         localName = ln;
52     }
53
54     /**
55      * <b>SAC</b>: Implements {@link
56      * org.w3c.css.sac.Condition#getConditionType()}.
57      */
58     public short getConditionType() {
59     return SAC_ID_CONDITION;
60     }
61     
62     /**
63      * <b>SAC</b>: Implements {@link
64      * org.w3c.css.sac.AttributeCondition#getNamespaceURI()}.
65      */
66     public String JavaDoc getNamespaceURI() {
67     return namespaceURI;
68     }
69
70     /**
71      * <b>SAC</b>: Implements {@link
72      * org.w3c.css.sac.AttributeCondition#getLocalName()}.
73      */
74     public String JavaDoc getLocalName() {
75     return localName;
76     }
77
78     /**
79      * <b>SAC</b>: Implements {@link
80      * org.w3c.css.sac.AttributeCondition#getSpecified()}.
81      */
82     public boolean getSpecified() {
83     return true;
84     }
85
86     /**
87      * Tests whether this condition matches the given element.
88      */
89     public boolean match(Element e, String JavaDoc pseudoE) {
90     return (e instanceof CSSStylableElement)
91         ? ((CSSStylableElement)e).getXMLId().equals(getValue())
92         : false;
93     }
94
95     /**
96      * Fills the given set with the attribute names found in this selector.
97      */
98     public void fillAttributeSet(Set JavaDoc attrSet) {
99         attrSet.add(localName);
100     }
101
102     /**
103      * Returns the specificity of this condition.
104      */
105     public int getSpecificity() {
106     return 1 << 16;
107     }
108
109     /**
110      * Returns a text representation of this object.
111      */
112     public String JavaDoc toString() {
113     return "#" + getValue();
114     }
115 }
116
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