1 /* 2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package javafx.css; 27 28 import com.sun.javafx.css.PseudoClassState; 29 30 import static javafx.geometry.NodeOrientation.INHERIT; 31 32 33 /** 34 * Used by {@link Rule} to determine whether or not the selector applies to a 35 * given object. 36 * 37 * Returned by {@link Selector} matches in the event of a match. 38 * 39 * @since 9 40 */ 41 public final class Match implements Comparable<Match> { 42 43 final Selector selector; 44 final PseudoClassState pseudoClasses; 45 final int idCount; 46 final int styleClassCount; 47 48 // CSS3 spec gives weight to id count, then style class count, 49 // then pseudoclass count, and finally matching types (i.e., java name count) 50 final int specificity; 51 52 Match(final Selector selector, PseudoClassState pseudoClasses, int idCount, int styleClassCount) { 53 assert selector != null; 54 this.selector = selector; 55 this.idCount = idCount; 56 this.styleClassCount = styleClassCount; 57 this.pseudoClasses = pseudoClasses; 58 int nPseudoClasses = pseudoClasses != null ? pseudoClasses.size() : 0; 59 if (selector instanceof SimpleSelector) { 60 final SimpleSelector simple = (SimpleSelector)selector; 61 if (simple.getNodeOrientation() != INHERIT) { 62 nPseudoClasses += 1; 63 } 64 } 65 specificity = (idCount << 8) | (styleClassCount << 4) | nPseudoClasses; 66 } 67 68 public Selector getSelector() { 69 return selector; 70 } 71 72 public PseudoClassState getPseudoClasses() { 73 return pseudoClasses; 74 } 75 76 public int getSpecificity() { 77 return specificity; 78 } 79 80 @Override public int compareTo(Match o) { 81 return specificity - o.specificity; 82 } 83 84 }