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;
  
  /**
   * 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>.
       */
      short UNKNOWN_RULE = 0;
      /**
       * The rule is a <code>CSSStyleRule</code>.
       */
      short STYLE_RULE = 1;
      /**
       * The rule is a <code>CSSCharsetRule</code>.
       */
      short CHARSET_RULE = 2;
      /**
       * The rule is a <code>CSSImportRule</code>.
       */
      short IMPORT_RULE = 3;
      /**
       * The rule is a <code>CSSMediaRule</code>.
       */
      short MEDIA_RULE = 4;
      /**
       * The rule is a <code>CSSFontFaceRule</code>.
       */
      short FONT_FACE_RULE = 5;
      /**
       * The rule is a <code>CSSPageRule</code>.
       */
      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>.
       */
      short getType();
  
      /**
       * The parsable textual representation of the rule. This reflects the
       * current state of the rule and not its initial value.
       */
      String getCssText();
  
      /**
       * The parsable textual representation of the rule. This reflects the
       * current state of the rule and not its initial value.
       *
       * @throws 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.
       */
      void setCssText(String cssText)
              throws DOMException;
  
      /**
       * The style sheet that contains this rule.
       */
      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>.
       */
      CSSRule getParentRule();
  
  }
  