accessible/public/nsIAccessibleTreeCache.idl
author Jim Blandy <jimb@mozilla.org>
Wed, 18 Feb 2009 09:14:51 -0800
changeset 25144 00f309d0d507ad18969c99b1c558c213892587ba
parent 15375 be010ac940e07c36dd7a986f2e03c2e13538e1a3
permissions -rw-r--r--
Bug 391488: Eliminate PTRDIFF macro; delete jssttddef.h. r=jimb Delete jsstddef.h, since its only remaining purpose is to make certain Win16-specific definitions; we don't support Win16 any more. In particular, we can just subtract pointers now, so the PTRDIFF macro is unnecessary noise. Most places get stddef.h via jstypes.h or some other header, so we can just delete #inclusions of jstddef.h. The exception is jskwgen.h, so there we explicitly include <stddef.h> instead.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * 1.1 (the "License"); you may not use this file except in compliance with
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 *
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 * for the specific language governing rights and limitations under the
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 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Louie Zhao <Louie.Zhao@sun.com> (original author)
 *   Alexander Surkov <surkov.alexander@gmail.com>
 *
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#include "nsISupports.idl"
#include "nsITreeColumns.idl"

interface nsIAccessible;

/**
 * A private interface to operate with tree accessible.
 *
 * @status UNDER_REVIEW
 */
[uuid(1dde5c3b-bede-43d1-aabf-dabc461113bd)]
interface nsIAccessibleTreeCache : nsISupports
{
  /**
   * Get tree item from cache according to row and column, create if doesn't
   * exist in cache.
   *
   * @param aRow     the given row index
   * @param aColumn  the given column object. If is is nsnull then primary
   *                 column is used. It makes sense for ATK only.
   */
  nsIAccessible getCachedTreeitemAccessible(in long aRow,
                                            in nsITreeColumn aColumn);

  /**
   * Invalidates the number of cached treeitem accessibles.
   *
   * @param aRow    row index the invalidation starts from
   * @param aCount  the number of treeitem accessibles to invalidate,
   *                the number sign specifies whether rows have been
   *                inserted (plus) or removed (minus)
   */
  void invalidateCache(in long aRow, in long aCount);

  /**
   * Fires name change events for invalidated area of tree.
   *
   * @param aStartRow  row index invalidation starts from
   * @param aEndRow    row index invalidation ends, -1 means last row index
   * @param aStartCol  column index invalidation starts from
   * @param aEndCol    column index invalidation ends, -1 mens last column
   *                   index
   */
  void treeViewInvalidated(in long aStartRow, in long aEndRow,
                           in long aStartCol, in long aEndCol);

  /**
   * Invalidates children created for previous tree view.
   */
  void treeViewChanged();

};

[uuid(b71532f9-53b2-4647-a5b2-1c5f57e9aed6)]
interface nsPIAccessibleTreeItem : nsISupports
{
  /**
   * Get/set cached name.
   */
  attribute AString cachedName;
};