001 /*
002 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
003 *
004 * This code is free software; you can redistribute it and/or modify it
005 * under the terms of the GNU General Public License version 2 only, as
006 * published by the Free Software Foundation. Sun designates this
007 * particular file as subject to the "Classpath" exception as provided
008 * by Sun in the LICENSE file that accompanied this code.
009 *
010 * This code is distributed in the hope that it will be useful, but WITHOUT
011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
013 * version 2 for more details (a copy is included in the LICENSE file that
014 * accompanied this code).
015 *
016 * You should have received a copy of the GNU General Public License version
017 * 2 along with this work; if not, write to the Free Software Foundation,
018 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
019 *
020 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
021 * CA 95054 USA or visit www.sun.com if you need additional information or
022 * have any questions.
023 */
024
025 /*
026 * This file is available under and governed by the GNU General Public
027 * License version 2 only, as published by the Free Software Foundation.
028 * However, the following notice accompanied the original version of this
029 * file and, per its terms, should not be removed:
030 *
031 * Copyright (c) 2000 World Wide Web Consortium,
032 * (Massachusetts Institute of Technology, Institut National de
033 * Recherche en Informatique et en Automatique, Keio University). All
034 * Rights Reserved. This program is distributed under the W3C's Software
035 * Intellectual Property License. This program is distributed in the
036 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
037 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
038 * PURPOSE.
039 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
040 */
041
042 package org.w3c.dom.css;
043
044 import org.w3c.dom.DOMException;
045
046 /**
047 * The <code>CSSRule</code> interface is the abstract base interface for any
048 * type of CSS statement. This includes both rule sets and at-rules. An
049 * implementation is expected to preserve all rules specified in a CSS style
050 * sheet, even if the rule is not recognized by the parser. Unrecognized
051 * rules are represented using the <code>CSSUnknownRule</code> interface.
052 * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113'>Document Object Model (DOM) Level 2 Style Specification</a>.
053 * @since DOM Level 2
054 */
055 public interface CSSRule {
056 // RuleType
057 /**
058 * The rule is a <code>CSSUnknownRule</code>.
059 */
060 public static final short UNKNOWN_RULE = 0;
061 /**
062 * The rule is a <code>CSSStyleRule</code>.
063 */
064 public static final short STYLE_RULE = 1;
065 /**
066 * The rule is a <code>CSSCharsetRule</code>.
067 */
068 public static final short CHARSET_RULE = 2;
069 /**
070 * The rule is a <code>CSSImportRule</code>.
071 */
072 public static final short IMPORT_RULE = 3;
073 /**
074 * The rule is a <code>CSSMediaRule</code>.
075 */
076 public static final short MEDIA_RULE = 4;
077 /**
078 * The rule is a <code>CSSFontFaceRule</code>.
079 */
080 public static final short FONT_FACE_RULE = 5;
081 /**
082 * The rule is a <code>CSSPageRule</code>.
083 */
084 public static final short PAGE_RULE = 6;
085
086 /**
087 * The type of the rule, as defined above. The expectation is that
088 * binding-specific casting methods can be used to cast down from an
089 * instance of the <code>CSSRule</code> interface to the specific
090 * derived interface implied by the <code>type</code>.
091 */
092 public short getType();
093
094 /**
095 * The parsable textual representation of the rule. This reflects the
096 * current state of the rule and not its initial value.
097 */
098 public String getCssText();
099
100 /**
101 * The parsable textual representation of the rule. This reflects the
102 * current state of the rule and not its initial value.
103 * @exception DOMException
104 * SYNTAX_ERR: Raised if the specified CSS string value has a syntax
105 * error and is unparsable.
106 * <br>INVALID_MODIFICATION_ERR: Raised if the specified CSS string
107 * value represents a different type of rule than the current one.
108 * <br>HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at
109 * this point in the style sheet.
110 * <br>NO_MODIFICATION_ALLOWED_ERR: Raised if the rule is readonly.
111 */
112 public void setCssText(String cssText) throws DOMException;
113
114 /**
115 * The style sheet that contains this rule.
116 */
117 public CSSStyleSheet getParentStyleSheet();
118
119 /**
120 * If this rule is contained inside another rule (e.g. a style rule
121 * inside an @media block), this is the containing rule. If this rule is
122 * not nested inside any other rules, this returns <code>null</code>.
123 */
124 public CSSRule getParentRule();
125
126 }
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