content: /*
   * 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 mf.org.w3c.dom.css;
  
  import mf.org.w3c.dom.DOMException;
  import mf.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>.
       */
      CSSRule getOwnerRule();
  
      /**
       * The list of all CSS rules contained within the style sheet. This
       * includes both rule sets and at-rules.
       */
      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.
       * @throws 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.
       */
      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.
       * @throws 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.
       */
      void deleteRule(int index)
              throws DOMException;
  
  }
  