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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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119
accessible/windows/ia2/ia2AccessibleImage.cpp Normal file
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* 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 "ia2AccessibleImage.h"
#include "AccessibleImage_i.c"
#include "ImageAccessibleWrap.h"
#include "IUnknownImpl.h"
#include "nsIAccessibleTypes.h"
#include "nsString.h"
#include "nsIURI.h"
using namespace mozilla;
using namespace mozilla::a11y;
// IUnknown
STDMETHODIMP
ia2AccessibleImage::QueryInterface(REFIID iid, void** ppv)
{
if (!ppv)
return E_INVALIDARG;
*ppv = nullptr;
if (IID_IAccessibleImage == iid) {
*ppv = static_cast<IAccessibleImage*>(this);
(static_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
// IAccessibleImage
STDMETHODIMP
ia2AccessibleImage::get_description(BSTR* aDescription)
{
A11Y_TRYBLOCK_BEGIN
if (!aDescription)
return E_INVALIDARG;
*aDescription = nullptr;
ImageAccessibleWrap* acc = static_cast<ImageAccessibleWrap*>(this);
if (acc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsAutoString description;
acc->Name(description);
if (description.IsEmpty())
return S_FALSE;
*aDescription = ::SysAllocStringLen(description.get(), description.Length());
return *aDescription ? S_OK : E_OUTOFMEMORY;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleImage::get_imagePosition(enum IA2CoordinateType aCoordType,
long* aX,
long* aY)
{
A11Y_TRYBLOCK_BEGIN
if (!aX || !aY)
return E_INVALIDARG;
*aX = 0;
*aY = 0;
ImageAccessibleWrap* imageAcc = static_cast<ImageAccessibleWrap*>(this);
if (imageAcc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
uint32_t geckoCoordType = (aCoordType == IA2_COORDTYPE_SCREEN_RELATIVE) ?
nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE :
nsIAccessibleCoordinateType::COORDTYPE_PARENT_RELATIVE;
nsIntPoint pos = imageAcc->Position(geckoCoordType);
*aX = pos.x;
*aY = pos.y;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ia2AccessibleImage::get_imageSize(long* aHeight, long* aWidth)
{
A11Y_TRYBLOCK_BEGIN
if (!aHeight || !aWidth)
return E_INVALIDARG;
*aHeight = 0;
*aWidth = 0;
ImageAccessibleWrap* imageAcc = static_cast<ImageAccessibleWrap*>(this);
if (imageAcc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsIntSize size = imageAcc->Size();
*aHeight = size.width;
*aWidth = size.height;
return S_OK;
A11Y_TRYBLOCK_END
}