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 org.apache.batik.css.engine.CSSStylableElement;
054: import org.w3c.dom.Element;
055:
056: /**
057: * This class provides an implementation of the
058: * {@link org.w3c.css.sac.AttributeCondition} interface.
059: *
060: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
061: * @version $Id$
062: */
063: public class CSSClassCondition extends CSSAttributeCondition {
064:
065: /**
066: * Creates a new CSSAttributeCondition object.
067: */
068: public CSSClassCondition(String localName, String namespaceURI,
069: String value) {
070: super (localName, namespaceURI, true, value);
071: }
072:
073: /**
074: * <b>SAC</b>: Implements {@link
075: * org.w3c.css.sac.Condition#getConditionType()}.
076: */
077: public short getConditionType() {
078: return SAC_CLASS_CONDITION;
079: }
080:
081: /**
082: * Tests whether this condition matches the given element.
083: */
084: public boolean match(Element e, String pseudoE) {
085: if (!(e instanceof CSSStylableElement))
086: return false; // Can't match an unstylable element.
087: String attr = ((CSSStylableElement) e).getCSSClass();
088: String val = getValue();
089: int i = attr.indexOf(val);
090: if (i == -1) {
091: return false;
092: }
093: if (i != 0 && !Character.isSpaceChar(attr.charAt(i - 1))) {
094: return false;
095: }
096: int j = i + val.length();
097: return (j == attr.length() || (j < attr.length() && Character
098: .isSpaceChar(attr.charAt(j))));
099: }
100:
101: /**
102: * Returns a text representation of this object.
103: */
104: public String toString() {
105: return "." + getValue();
106: }
107: }
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