gecko-dev/accessible/atk/nsMaiInterfaceImage.cpp
2014-10-21 20:49:28 -04:00

70 lines
1.9 KiB
C++

/* -*- 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"
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)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aImage));
if (!accWrap || !accWrap->IsImage())
return;
ImageAccessible* image = accWrap->AsImage();
uint32_t geckoCoordType = (aCoordType == ATK_XY_WINDOW) ?
nsIAccessibleCoordinateType::COORDTYPE_WINDOW_RELATIVE :
nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE;
nsIntPoint pos = image->Position(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)
{
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aImage));
if (!accWrap || !accWrap->IsImage())
return;
nsIntSize size = accWrap->AsImage()->Size();
*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;
}