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;
  import org.w3c.dom.stylesheets.StyleSheet;
  
  /**
   *  The <code>CSSStyleSheet</code> interface is a concrete interface used to
   * represent a CSS style sheet i.e., a style sheet whose content type is
   * "text/css".
   * <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 CSSStyleSheet extends StyleSheet {
      /**
       *  If this style sheet comes from an <code>@import</code> rule, the
       * <code>ownerRule</code> attribute will contain the
       * <code>CSSImportRule</code>. In that case, the <code>ownerNode</code>
       * attribute in the <code>StyleSheet</code> interface will be
       * <code>null</code>. If the style sheet comes from an element or a
       * processing instruction, the <code>ownerRule</code> attribute will be
       * <code>null</code> and the <code>ownerNode</code> attribute will
       * contain the <code>Node</code>.
       */
      public CSSRule getOwnerRule();
  
      /**
       *  The list of all CSS rules contained within the style sheet. This
       * includes both rule sets and at-rules.
       */
      public CSSRuleList getCssRules();
  
      /**
       *  Used to insert a new rule into the style sheet. The new rule now
       * becomes part of the cascade.
       * @param rule  The parsable text representing the rule. For rule sets
       *   this contains both the selector and the style declaration. For
       *   at-rules, this specifies both the at-identifier and the rule
       *   content.
       * @param index  The index within the style sheet's rule list of the rule
       *   before which to insert the specified rule. If the specified index
       *   is equal to the length of the style sheet's rule collection, the
       *   rule will be added to the end of the style sheet.
       * @return  The index within the style sheet's rule collection of the
       *   newly inserted rule.
       * @exception DOMException
       *   HIERARCHY_REQUEST_ERR: Raised if the rule cannot be inserted at the
       *   specified index e.g. if an <code>@import</code> rule is inserted
       *   after a standard rule set or other at-rule.
       *   <br>INDEX_SIZE_ERR: Raised if the specified index is not a valid
       *   insertion point.
       *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this style sheet is
       *   readonly.
       *   <br>SYNTAX_ERR: Raised if the specified rule has a syntax error and
       *   is unparsable.
       */
      public int insertRule(String rule,
                            int index)
                            throws DOMException;
  
      /**
       *  Used to delete a rule from the style sheet.
       * @param index  The index within the style sheet's rule list of the rule
       *   to remove.
       * @exception DOMException
       *   INDEX_SIZE_ERR: Raised if the specified index does not correspond to
       *   a rule in the style sheet's rule list.
       *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this style sheet is
       *   readonly.
       */
      public void deleteRule(int index)
                             throws DOMException;
  
  }
  