nsRootAccessibleWrap.mm

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
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 * Portions created by the Initial Developer are Copyright (C) 2006
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Original Author: Håkan Waara <hwaara@gmail.com>
 *
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 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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#include "nsRootAccessibleWrap.h"

#include "mozDocAccessible.h"

#include "nsCOMPtr.h"
#include "nsObjCExceptions.h"
#include "nsIWidget.h"
#include "nsIViewManager.h"

#import "mozAccessibleWrapper.h"


nsRootAccessibleWrap::
  nsRootAccessibleWrap(nsIDocument *aDocument, nsIContent *aRootContent,
                       nsIWeakReference *aShell) :
  nsRootAccessible(aDocument, aRootContent, aShell)
{
}

nsRootAccessibleWrap::~nsRootAccessibleWrap()
{
}

Class
nsRootAccessibleWrap::GetNativeType ()
{
  NS_OBJC_BEGIN_TRY_ABORT_BLOCK_NIL;

  return [mozRootAccessible class];

  NS_OBJC_END_TRY_ABORT_BLOCK_NIL;
}

void
nsRootAccessibleWrap::GetNativeWidget (void **aOutView)
{
  nsIFrame *frame = GetFrame();
  if (frame) {
    nsIView *view = frame->GetViewExternal();
    if (view) {
      nsIWidget *widget = view->GetWidget();
      if (widget) {
        *aOutView = (void**)widget->GetNativeData (NS_NATIVE_WIDGET);
        NS_ASSERTION (*aOutView, 
                      "Couldn't get the native NSView parent we need to connect the accessibility hierarchy!");
      }
    }
  }
}