001: /*
002:
003: ============================================================================
004: The Apache Software License, Version 1.1
005: ============================================================================
006:
007: Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
008:
009: Redistribution and use in source and binary forms, with or without modifica-
010: tion, are permitted provided that the following conditions are met:
011:
012: 1. Redistributions of source code must retain the above copyright notice,
013: this list of conditions and the following disclaimer.
014:
015: 2. Redistributions in binary form must reproduce the above copyright notice,
016: this list of conditions and the following disclaimer in the documentation
017: and/or other materials provided with the distribution.
018:
019: 3. The end-user documentation included with the redistribution, if any, must
020: include the following acknowledgment: "This product includes software
021: developed by the Apache Software Foundation (http://www.apache.org/)."
022: Alternately, this acknowledgment may appear in the software itself, if
023: and wherever such third-party acknowledgments normally appear.
024:
025: 4. The names "Batik" and "Apache Software Foundation" must not be
026: used to endorse or promote products derived from this software without
027: prior written permission. For written permission, please contact
028: apache@apache.org.
029:
030: 5. Products derived from this software may not be called "Apache", nor may
031: "Apache" appear in their name, without prior written permission of the
032: Apache Software Foundation.
033:
034: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
035: INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
036: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
037: APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
038: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
039: DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
040: OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
041: ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
042: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
043: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
044:
045: This software consists of voluntary contributions made by many individuals
046: on behalf of the Apache Software Foundation. For more information on the
047: Apache Software Foundation, please see <http://www.apache.org/>.
048:
049: */
050:
051: package org.apache.batik.css.engine.sac;
052:
053: import java.util.Set;
054:
055: import org.w3c.dom.Element;
056:
057: /**
058: * This class provides an implementation of the
059: * {@link org.w3c.css.sac.AttributeCondition} interface.
060: *
061: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
062: * @version $Id$
063: */
064: public class CSSAttributeCondition extends AbstractAttributeCondition {
065: /**
066: * The attribute's local name.
067: */
068: protected String localName;
069:
070: /**
071: * The attribute's namespace URI.
072: */
073: protected String namespaceURI;
074:
075: /**
076: * Whether this condition applies to specified attributes.
077: */
078: protected boolean specified;
079:
080: /**
081: * Creates a new CSSAttributeCondition object.
082: */
083: public CSSAttributeCondition(String localName, String namespaceURI,
084: boolean specified, String value) {
085: super (value);
086: this .localName = localName;
087: this .namespaceURI = namespaceURI;
088: this .specified = specified;
089: }
090:
091: /**
092: * Indicates whether some other object is "equal to" this one.
093: * @param obj the reference object with which to compare.
094: */
095: public boolean equals(Object obj) {
096: if (!super .equals(obj)) {
097: return false;
098: }
099: CSSAttributeCondition c = (CSSAttributeCondition) obj;
100: return c.namespaceURI.equals(namespaceURI)
101: && c.localName.equals(localName)
102: && c.specified == specified;
103: }
104:
105: /**
106: * <b>SAC</b>: Implements {@link
107: * org.w3c.css.sac.Condition#getConditionType()}.
108: */
109: public short getConditionType() {
110: return SAC_ATTRIBUTE_CONDITION;
111: }
112:
113: /**
114: * <b>SAC</b>: Implements {@link
115: * org.w3c.css.sac.AttributeCondition#getNamespaceURI()}.
116: */
117: public String getNamespaceURI() {
118: return namespaceURI;
119: }
120:
121: /**
122: * <b>SAC</b>: Implements {@link
123: * org.w3c.css.sac.AttributeCondition#getLocalName()}.
124: */
125: public String getLocalName() {
126: return localName;
127: }
128:
129: /**
130: * <b>SAC</b>: Implements {@link
131: * org.w3c.css.sac.AttributeCondition#getSpecified()}.
132: */
133: public boolean getSpecified() {
134: return specified;
135: }
136:
137: /**
138: * Tests whether this condition matches the given element.
139: */
140: public boolean match(Element e, String pseudoE) {
141: String val = getValue();
142: if (val == null) {
143: return !e.getAttribute(getLocalName()).equals("");
144: }
145: return e.getAttribute(getLocalName()).equals(val);
146: }
147:
148: /**
149: * Fills the given set with the attribute names found in this selector.
150: */
151: public void fillAttributeSet(Set attrSet) {
152: attrSet.add(localName);
153: }
154:
155: /**
156: * Returns a text representation of this object.
157: */
158: public String toString() {
159: if (value == null) {
160: return "[" + localName + "]";
161: }
162: return "[" + localName + "=\"" + value + "\"]";
163: }
164: }
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