1 /* 2 3 Copyright 2002, 2015 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 19 /* This class copied from org.apache.batik.css.engine.sac */ 20 21 package org.eclipse.e4.ui.css.core.impl.sac; 22 23 import java.util.Set; 24 import org.w3c.dom.Element; 25 26 /** 27 * This class provides an implementation of the 28 * {@link org.w3c.css.sac.AttributeCondition} interface. 29 */ 30 public class CSSAttributeConditionImpl extends AbstractAttributeCondition { 31 /** 32 * The attribute's local name. 33 */ 34 protected String localName; 35 36 /** 37 * The attribute's namespace URI. 38 */ 39 protected String namespaceURI; 40 41 /** 42 * Whether this condition applies to specified attributes. 43 */ 44 protected boolean specified; 45 46 /** 47 * Creates a new CSSAttributeCondition object. 48 */ CSSAttributeConditionImpl(String localName, String namespaceURI, boolean specified, String value)49 public CSSAttributeConditionImpl(String localName, String namespaceURI, 50 boolean specified, String value) { 51 super(value); 52 this.localName = localName; 53 this.namespaceURI = namespaceURI; 54 this.specified = specified; 55 } 56 57 /** 58 * Indicates whether some other object is "equal to" this one. 59 * 60 * @param obj 61 * the reference object with which to compare. 62 */ 63 @Override equals(Object obj)64 public boolean equals(Object obj) { 65 if (!super.equals(obj)) { 66 return false; 67 } 68 CSSAttributeConditionImpl c = (CSSAttributeConditionImpl) obj; 69 return (c.namespaceURI.equals(namespaceURI) 70 && c.localName.equals(localName) && c.specified == specified); 71 } 72 73 /** 74 * equal objects should have equal hashCodes. 75 * 76 * @return hashCode of this CSSAttributeCondition 77 */ 78 @Override hashCode()79 public int hashCode() { 80 return namespaceURI.hashCode() ^ localName.hashCode() 81 ^ Boolean.hashCode(specified); 82 } 83 84 /** 85 * <b>SAC</b>: Implements {@link 86 * org.w3c.css.sac.Condition#getConditionType()}. 87 */ 88 @Override getConditionType()89 public short getConditionType() { 90 return SAC_ATTRIBUTE_CONDITION; 91 } 92 93 /** 94 * <b>SAC</b>: Implements {@link 95 * org.w3c.css.sac.AttributeCondition#getNamespaceURI()}. 96 */ 97 @Override getNamespaceURI()98 public String getNamespaceURI() { 99 return namespaceURI; 100 } 101 102 /** 103 * <b>SAC</b>: Implements {@link 104 * org.w3c.css.sac.AttributeCondition#getLocalName()}. 105 */ 106 @Override getLocalName()107 public String getLocalName() { 108 return localName; 109 } 110 111 /** 112 * <b>SAC</b>: Implements {@link 113 * org.w3c.css.sac.AttributeCondition#getSpecified()}. 114 */ 115 @Override getSpecified()116 public boolean getSpecified() { 117 return specified; 118 } 119 120 /** 121 * Tests whether this condition matches the given element. 122 */ 123 @Override match(Element e, String pseudoE)124 public boolean match(Element e, String pseudoE) { 125 if (!e.hasAttribute(getLocalName())) { 126 return false; 127 } 128 String val = getValue(); 129 if (val == null) { 130 return true; 131 } 132 return e.getAttribute(getLocalName()).equals(val); 133 } 134 135 /** 136 * Fills the given set with the attribute names found in this selector. 137 */ 138 @Override fillAttributeSet(Set<String> attrSet)139 public void fillAttributeSet(Set<String> attrSet) { 140 attrSet.add(localName); 141 } 142 143 /** 144 * Returns a text representation of this object. 145 */ 146 @Override toString()147 public String toString() { 148 if (value == null) { 149 return '[' + localName + ']'; 150 } 151 return '[' + localName + "=\"" + value + "\"]"; 152 } 153 } 154