content: /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  /*
   * This file is available under and governed by the GNU General Public
   * License version 2 only, as published by the Free Software Foundation.
   * However, the following notice accompanied the original version of this
   * file and, per its terms, should not be removed:
   *
   * Copyright (c) 2000 World Wide Web Consortium,
   * (Massachusetts Institute of Technology, Institut National de
   * Recherche en Informatique et en Automatique, Keio University). All
   * Rights Reserved. This program is distributed under the W3C's Software
   * Intellectual Property License. This program is distributed in the
   * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
   * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
   * PURPOSE.
   * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
   */
  
  package org.w3c.dom.css;
  
  import org.w3c.dom.DOMException;
  
  /**
   *  The <code>CSSRule</code> interface is the abstract base interface for any
   * type of CSS statement. This includes both rule sets and at-rules. An
   * implementation is expected to preserve all rules specified in a CSS style
   * sheet, even if the rule is not recognized by the parser. Unrecognized
   * rules are represented using the <code>CSSUnknownRule</code> interface.
   * <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>.
   * @since DOM Level 2
   */
  public interface CSSRule {
      // RuleType
      /**
       * The rule is a <code>CSSUnknownRule</code>.
       */
      public static final short UNKNOWN_RULE              = 0;
      /**
       * The rule is a <code>CSSStyleRule</code>.
       */
      public static final short STYLE_RULE                = 1;
      /**
       * The rule is a <code>CSSCharsetRule</code>.
       */
      public static final short CHARSET_RULE              = 2;
      /**
       * The rule is a <code>CSSImportRule</code>.
       */
      public static final short IMPORT_RULE               = 3;
      /**
       * The rule is a <code>CSSMediaRule</code>.
       */
      public static final short MEDIA_RULE                = 4;
      /**
       * The rule is a <code>CSSFontFaceRule</code>.
       */
      public static final short FONT_FACE_RULE            = 5;
      /**
       * The rule is a <code>CSSPageRule</code>.
       */
      public static final short PAGE_RULE                 = 6;
  
      /**
       *  The type of the rule, as defined above. The expectation is that
       * binding-specific casting methods can be used to cast down from an
       * instance of the <code>CSSRule</code> interface to the specific
       * derived interface implied by the <code>type</code>.
       */
      public short getType();
  
      /**
       *  The parsable textual representation of the rule. This reflects the
       * current state of the rule and not its initial value.
       */
      public String getCssText();
      /**
       *  The parsable textual representation of the rule. This reflects the
       * current state of the rule and not its initial value.
       * @exception DOMException
       *   SYNTAX_ERR: Raised if the specified CSS string value has a syntax
       *   error and is unparsable.
       *   <br>INVALID_MODIFICATION_ERR: Raised if the specified CSS string
       *   value represents a different type of rule than the current one.
       *   <br>HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at
       *   this point in the style sheet.
       *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if the rule is readonly.
       */
      public void setCssText(String cssText)
                          throws DOMException;
  
      /**
       *  The style sheet that contains this rule.
       */
      public CSSStyleSheet getParentStyleSheet();
  
      /**
       *  If this rule is contained inside another rule (e.g. a style rule
       * inside an @media block), this is the containing rule. If this rule is
       * not nested inside any other rules, this returns <code>null</code>.
       */
      public CSSRule getParentRule();
  
  }
  