gecko/accessible/src/xpcom/xpcAccessibleTextRange.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "xpcAccessibleTextRange.h"

#include "HyperTextAccessible.h"
#include "TextRange.h"

using namespace mozilla;
using namespace mozilla::a11y;

// nsISupports and cycle collection

NS_IMPL_CYCLE_COLLECTION_3(xpcAccessibleTextRange,
                           mRange.mRoot,
                           mRange.mStartContainer,
                           mRange.mEndContainer)

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(xpcAccessibleTextRange)
  NS_INTERFACE_MAP_ENTRY(nsIAccessibleTextRange)
  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIAccessibleTextRange)
NS_INTERFACE_MAP_END

NS_IMPL_CYCLE_COLLECTING_ADDREF(xpcAccessibleTextRange)
NS_IMPL_CYCLE_COLLECTING_RELEASE(xpcAccessibleTextRange)

// nsIAccessibleTextRange

NS_IMETHODIMP
xpcAccessibleTextRange::GetStartContainer(nsIAccessible** aAnchor)
{
  NS_ENSURE_ARG_POINTER(aAnchor);
  NS_IF_ADDREF(*aAnchor = static_cast<nsIAccessible*>(mRange.StartContainer()));
  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleTextRange::GetStartOffset(int32_t* aOffset)
{
  NS_ENSURE_ARG_POINTER(aOffset);
  *aOffset = mRange.StartOffset();
  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleTextRange::GetEndContainer(nsIAccessible** aAnchor)
{
  NS_ENSURE_ARG_POINTER(aAnchor);
  NS_IF_ADDREF(*aAnchor = static_cast<nsIAccessible*>(mRange.EndContainer()));
  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleTextRange::GetEndOffset(int32_t* aOffset)
{
  NS_ENSURE_ARG_POINTER(aOffset);
  *aOffset = mRange.EndOffset();
  return NS_OK;
}

NS_IMETHODIMP
xpcAccessibleTextRange::GetText(nsAString& aText)
{
  nsAutoString text;
  mRange.Text(text);
  aText.Assign(text);

  return NS_OK;
}