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.css.sac.Selector;
056: import org.w3c.css.sac.SimpleSelector;
057: import org.w3c.dom.Element;
058: import org.w3c.dom.Node;
059:
060: /**
061: * This class provides an implementation for the
062: * {@link org.w3c.css.sac.DescendantSelector} interface.
063: *
064: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
065: * @version $Id$
066: */
067: public class CSSDescendantSelector extends AbstractDescendantSelector {
068:
069: /**
070: * Creates a new CSSDescendantSelector object.
071: */
072: public CSSDescendantSelector(Selector ancestor,
073: SimpleSelector simple) {
074: super (ancestor, simple);
075: }
076:
077: /**
078: * <b>SAC</b>: Implements {@link
079: * org.w3c.css.sac.Selector#getSelectorType()}.
080: */
081: public short getSelectorType() {
082: return SAC_DESCENDANT_SELECTOR;
083: }
084:
085: /**
086: * Tests whether this selector matches the given element.
087: */
088: public boolean match(Element e, String pseudoE) {
089: ExtendedSelector p = (ExtendedSelector) getAncestorSelector();
090: for (Node n = e.getParentNode(); n != null; n = n
091: .getParentNode()) {
092: if (n.getNodeType() == Node.ELEMENT_NODE
093: && p.match((Element) n, null)) {
094: return ((ExtendedSelector) getSimpleSelector()).match(
095: e, pseudoE);
096: }
097: }
098: return false;
099: }
100:
101: /**
102: * Fills the given set with the attribute names found in this selector.
103: */
104: public void fillAttributeSet(Set attrSet) {
105: ((ExtendedSelector) getSimpleSelector())
106: .fillAttributeSet(attrSet);
107: }
108:
109: /**
110: * Returns a representation of the selector.
111: */
112: public String toString() {
113: return getAncestorSelector() + " " + getSimpleSelector();
114: }
115: }
|