accessible/build/nsAccessibilityFactory.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
   7  * the License. You may obtain a copy of the License at
   8  * http://www.mozilla.org/MPL/
   9  *
  10  * Software distributed under the License is distributed on an "AS IS" basis,
  11  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  12  * for the specific language governing rights and limitations under the
  13  * License.
  14  *
  15  * The Original Code is mozilla.org code.
  16  *
  17  * The Initial Developer of the Original Code is
  18  * Netscape Communications Corporation.
  19  * Portions created by the Initial Developer are Copyright (C) 1998
  20  * the Initial Developer. All Rights Reserved.
  21  *
  22  * Contributor(s):
  23  *
  24  * Alternatively, the contents of this file may be used under the terms of
  25  * either of the GNU General Public License Version 2 or later (the "GPL"),
  26  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  27  * in which case the provisions of the GPL or the LGPL are applicable instead
  28  * of those above. If you wish to allow use of your version of this file only
  29  * under the terms of either the GPL or the LGPL, and not to allow others to
  30  * use your version of this file under the terms of the MPL, indicate your
  31  * decision by deleting the provisions above and replace them with the notice
  32  * and other provisions required by the GPL or the LGPL. If you do not delete
  33  * the provisions above, a recipient may use your version of this file under
  34  * the terms of any one of the MPL, the GPL or the LGPL.
  35  *
  36  * ***** END LICENSE BLOCK ***** */
  37
  38 #include "nsCOMPtr.h"
  39 #include "nsIModule.h"
  40 #include "nsIGenericFactory.h"
  41
  42 #include "nsIServiceManager.h"
  43 #include "nsIComponentManager.h"
  44 #include "nsIAccessibilityService.h"
  45 #include "nsIAccessibleRetrieval.h"
  46 #include "nscore.h"
  47
  48 static NS_IMETHODIMP
  49 NS_ConstructAccessibilityService(nsISupports *aOuter, REFNSIID aIID, void **aResult)
  50 {
  51     nsresult rv;
  52     NS_ASSERTION(aOuter == nsnull, "no aggregation");
  53     nsIAccessibilityService* accessibility;
  54     rv = NS_GetAccessibilityService(&accessibility);
  55     if (NS_FAILED(rv)) {
  56         NS_ERROR("Unable to construct accessibility service");
  57         return rv;
  58     }
  59     rv = accessibility->QueryInterface(aIID, aResult);
  60     NS_ASSERTION(NS_SUCCEEDED(rv), "unable to find correct interface");
  61     NS_RELEASE(accessibility);
  62     return rv;
  63 }
  64
  65 // The list of components we register
  66 static const nsModuleComponentInfo components[] =
  67 {
  68     { "AccessibilityService",
  69       NS_ACCESSIBILITY_SERVICE_CID,
  70       "@mozilla.org/accessibilityService;1",
  71       NS_ConstructAccessibilityService
  72     },
  73     { "AccessibleRetrieval",
  74       NS_ACCESSIBLE_RETRIEVAL_CID,
  75       "@mozilla.org/accessibleRetrieval;1",
  76       NS_ConstructAccessibilityService
  77     },
  78 };
  79
  80 NS_IMPL_NSGETMODULE(nsAccessibilityModule, components)
  81
  82