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nsIAccessibleDocument.idl

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 * the Initial Developer. All Rights Reserved.
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 * Original Author: Aaron Leventhal (aaronl@netscape.com)
 * Contributor(s): John Gaunt (jgaunt@netscape.com)
 *
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#include "nsISupports.idl"

interface nsIAccessible;
interface nsIAccessNode;
interface nsIDOMDocument;
interface nsIDOMNode;
interface nsIDOMWindow;

/**
 * An interface for in-process accessibility clients
 * that wish to retrieve information about a document.
 * When accessibility is turned on in Gecko,
 * there is an nsIAccessibleDocument for each document
 * whether it is XUL, HTML or whatever.
 * You can QueryInterface to nsIAccessibleDocument from
 * the nsIAccessible or nsIAccessNode for the root node
 * of a document. You can also get one from 
 * nsIAccessNode::GetAccessibleDocument() or 
 * nsIAccessibleEvent::GetAccessibleDocument()
 *
 * @status UNDER_REVIEW
 */
[scriptable, uuid(b7ae45bd-21e9-4ed5-a67e-86448b25d56b)]
00062 interface nsIAccessibleDocument : nsISupports
{
  /**
   * The URL of the document
   */
00067   readonly attribute AString URL;

  /**
   * The title of the document, as specified in the document.
   */
00072   readonly attribute AString title;

  /**
   * The mime type of the document
   */
00077   readonly attribute AString mimeType;

  /**
   * The doc type of the document, as specified in the document.
   */
00082   readonly attribute AString docType;

  /**
   * The nsIDOMDocument interface associated with this document.
   */
00087   readonly attribute nsIDOMDocument document;

  /**
   * The nsIDOMWindow that the document resides in.
   */
00092   readonly attribute nsIDOMWindow window;

  /**
   * The namespace for each ID that is handed back.
   */
  AString getNameSpaceURIForID(in short nameSpaceID);

  /**
   * The window handle for the OS window the document is being displayed in.
   * For example, in Windows you can static cast it to an HWND.
   */
00103   [noscript] readonly attribute voidPtr windowHandle;

  /**
   * Returns the access node cached by this document
   * @param aUniqueID The unique ID used to cache the node.
   *                  This matches up with the uniqueID attribute on
   *                  nsIAccessNode.
   * @return The nsIAccessNode cached for this particular unique ID.
   */
  [noscript] nsIAccessNode getCachedAccessNode(in voidPtr aUniqueID);

  /**
   * Returns the first accessible parent of a DOM node.
   * Guaranteed not to return nsnull if the DOM node is in a document.
   * @param aDOMNode The DOM node we need an accessible for.
   * @param aCanCreate Can accessibles be created or must it be the first 
   *                   cached accessible in the parent chain?
   * @return An first nsIAccessible found by crawling up the DOM node
   *         to the document root.
   */
  nsIAccessible getAccessibleInParentChain(in nsIDOMNode aDOMNode,
                                           in boolean aCanCreate);
};

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