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.stylesheets;
  
  import mf.org.w3c.dom.DOMException;
  
  /**
   * The <code>MediaList</code> interface provides the abstraction of an
   * ordered collection of media, without defining or constraining how this
   * collection is implemented. An empty list is the same as a list that
   * contains the medium <code>"all"</code>.
   * <p> The items in the <code>MediaList</code> are accessible via an integral
   * index, starting from 0.
   * <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 MediaList {
      /**
       * The parsable textual representation of the media list. This is a
       * comma-separated list of media.
       */
      String getMediaText();
  
      /**
       * The parsable textual representation of the media list. This is a
       * comma-separated list of media.
       *
       * @throws DOMException SYNTAX_ERR: Raised if the specified string value has a syntax error
       *                      and is unparsable.
       *                      <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this media list is
       *                      readonly.
       */
      void setMediaText(String mediaText)
              throws DOMException;
  
      /**
       * The number of media in the list. The range of valid media is
       * <code>0</code> to <code>length-1</code> inclusive.
       */
      int getLength();
  
      /**
       * Returns the <code>index</code>th in the list. If <code>index</code> is
       * greater than or equal to the number of media in the list, this
       * returns <code>null</code>.
       *
       * @param index Index into the collection.
       * @return The medium at the <code>index</code>th position in the
       * <code>MediaList</code>, or <code>null</code> if that is not a valid
       * index.
       */
      String item(int index);
  
      /**
       * Deletes the medium indicated by <code>oldMedium</code> from the list.
       *
       * @param oldMedium The medium to delete in the media list.
       * @throws DOMException NO_MODIFICATION_ALLOWED_ERR: Raised if this list is readonly.
       *                      <br> NOT_FOUND_ERR: Raised if <code>oldMedium</code> is not in the
       *                      list.
       */
      void deleteMedium(String oldMedium)
              throws DOMException;
  
      /**
       * Adds the medium <code>newMedium</code> to the end of the list. If the
       * <code>newMedium</code> is already used, it is first removed.
       *
       * @param newMedium The new medium to add.
       * @throws DOMException INVALID_CHARACTER_ERR: If the medium contains characters that are
       *                      invalid in the underlying style language.
       *                      <br> NO_MODIFICATION_ALLOWED_ERR: Raised if this list is readonly.
       */
      void appendMedium(String newMedium)
              throws DOMException;
  
  }
  