/* -*- 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 "InterfaceInitFuncs.h"

#include "AccessibleWrap.h"

#include "ImageAccessible.h"

#include "mozilla/Likely.h"

#include "nsMai.h"

#include "nsIAccessibleTypes.h"

#include "nsIURI.h"

#include "ProxyAccessible.h"

using namespace mozilla;

using namespace mozilla::a11y;

extern "C" {

const gchar* getDescriptionCB(AtkObject* aAtkObj);

static void

getImagePositionCB(AtkImage* aImage, gint* aAccX, gint* aAccY,

                   AtkCoordType aCoordType)

{

  nsIntPoint pos;

  uint32_t geckoCoordType = (aCoordType == ATK_XY_WINDOW) ?

    nsIAccessibleCoordinateType::COORDTYPE_WINDOW_RELATIVE :

    nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE;

  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aImage));

  if (accWrap && accWrap->IsImage()) {

    ImageAccessible* image = accWrap->AsImage();

    pos = image->Position(geckoCoordType);

  } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aImage))) {

    pos = proxy->ImagePosition(geckoCoordType);

  }

  *aAccX = pos.x;

  *aAccY = pos.y;

}

static const gchar*

getImageDescriptionCB(AtkImage* aImage)

{

  return getDescriptionCB(ATK_OBJECT(aImage));

}

static void

getImageSizeCB(AtkImage* aImage, gint* aAccWidth, gint* aAccHeight)

{

  nsIntSize size;

  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aImage));

  if (accWrap && accWrap->IsImage()) {

    size = accWrap->AsImage()->Size();

  } else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aImage))) {

    size = proxy->ImageSize();

  }

  *aAccWidth = size.width;

  *aAccHeight = size.height;

}

} // extern "C"

void

imageInterfaceInitCB(AtkImageIface* aIface)

{

  NS_ASSERTION(aIface, "no interface!");

  if (MOZ_UNLIKELY(!aIface))

    return;

  aIface->get_image_position = getImagePositionCB;

  aIface->get_image_description = getImageDescriptionCB;

  aIface->get_image_size = getImageSizeCB;

}