/* -*- 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 "Accessible-inl.h"

#include "xpcAccessibleDocument.h"

#include "nsIMutableArray.h"

using namespace mozilla::a11y;

NS_IMETHODIMP

xpcAccessibleSelectable::GetSelectedItems(nsIArray** aSelectedItems)

{

  NS_ENSURE_ARG_POINTER(aSelectedItems);

  *aSelectedItems = nullptr;

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  AutoTArray<Accessible*, 10> items;

  Intl()->SelectedItems(&items);

  uint32_t itemCount = items.Length();

  if (itemCount == 0)

    return NS_OK;

  nsresult rv = NS_OK;

  nsCOMPtr<nsIMutableArray> xpcItems =

    do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);

  NS_ENSURE_SUCCESS(rv, rv);

  for (uint32_t idx = 0; idx < itemCount; idx++)

    xpcItems->AppendElement(static_cast<nsIAccessible*>(ToXPC(items[idx])));

  NS_ADDREF(*aSelectedItems = xpcItems);

  return NS_OK;

}

NS_IMETHODIMP

xpcAccessibleSelectable::GetSelectedItemCount(uint32_t* aSelectionCount)

{

  NS_ENSURE_ARG_POINTER(aSelectionCount);

  *aSelectionCount = 0;

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  *aSelectionCount = Intl()->SelectedItemCount();

  return NS_OK;

}

NS_IMETHODIMP

xpcAccessibleSelectable::GetSelectedItemAt(uint32_t aIndex,

                                           nsIAccessible** aSelected)

{

  NS_ENSURE_ARG_POINTER(aSelected);

  *aSelected = nullptr;

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  *aSelected = ToXPC(Intl()->GetSelectedItem(aIndex));

  if (*aSelected) {

    NS_ADDREF(*aSelected);

    return NS_OK;

  }

  return NS_ERROR_INVALID_ARG;

}

NS_IMETHODIMP

xpcAccessibleSelectable::IsItemSelected(uint32_t aIndex, bool* aIsSelected)

{

  NS_ENSURE_ARG_POINTER(aIsSelected);

  *aIsSelected = false;

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  *aIsSelected = Intl()->IsItemSelected(aIndex);

  return NS_OK;

}

NS_IMETHODIMP

xpcAccessibleSelectable::AddItemToSelection(uint32_t aIndex)

{

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  return Intl()->AddItemToSelection(aIndex) ? NS_OK : NS_ERROR_INVALID_ARG;

}

NS_IMETHODIMP

xpcAccessibleSelectable::RemoveItemFromSelection(uint32_t aIndex)

{

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  return Intl()->RemoveItemFromSelection(aIndex) ? NS_OK : NS_ERROR_INVALID_ARG;

}

NS_IMETHODIMP

xpcAccessibleSelectable::SelectAll(bool* aIsMultiSelect)

{

  NS_ENSURE_ARG_POINTER(aIsMultiSelect);

  *aIsMultiSelect = false;

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  *aIsMultiSelect = Intl()->SelectAll();

  return NS_OK;

}

NS_IMETHODIMP

xpcAccessibleSelectable::UnselectAll()

{

  if (!Intl())

    return NS_ERROR_FAILURE;

  MOZ_ASSERT(Intl()->IsSelect(), "Called on non selectable widget!");

  Intl()->UnselectAll();

  return NS_OK;

}