зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
2.6 KiB
C++
120 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:expandtab:shiftwidth=2:tabstop=2:
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "ia2AccessibleImage.h"
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#include "AccessibleImage_i.c"
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#include "ImageAccessibleWrap.h"
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#include "IUnknownImpl.h"
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#include "nsIAccessibleTypes.h"
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#include "nsString.h"
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#include "nsIURI.h"
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using namespace mozilla;
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using namespace mozilla::a11y;
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// IUnknown
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STDMETHODIMP
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ia2AccessibleImage::QueryInterface(REFIID iid, void** ppv)
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{
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if (!ppv)
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return E_INVALIDARG;
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*ppv = nullptr;
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if (IID_IAccessibleImage == iid) {
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*ppv = static_cast<IAccessibleImage*>(this);
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(static_cast<IUnknown*>(*ppv))->AddRef();
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return S_OK;
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}
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return E_NOINTERFACE;
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}
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// IAccessibleImage
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STDMETHODIMP
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ia2AccessibleImage::get_description(BSTR* aDescription)
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{
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A11Y_TRYBLOCK_BEGIN
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if (!aDescription)
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return E_INVALIDARG;
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*aDescription = nullptr;
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ImageAccessibleWrap* acc = static_cast<ImageAccessibleWrap*>(this);
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if (acc->IsDefunct())
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return CO_E_OBJNOTCONNECTED;
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nsAutoString description;
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acc->Name(description);
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if (description.IsEmpty())
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return S_FALSE;
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*aDescription = ::SysAllocStringLen(description.get(), description.Length());
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return *aDescription ? S_OK : E_OUTOFMEMORY;
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A11Y_TRYBLOCK_END
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}
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STDMETHODIMP
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ia2AccessibleImage::get_imagePosition(enum IA2CoordinateType aCoordType,
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long* aX,
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long* aY)
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{
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A11Y_TRYBLOCK_BEGIN
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if (!aX || !aY)
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return E_INVALIDARG;
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*aX = 0;
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*aY = 0;
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ImageAccessibleWrap* imageAcc = static_cast<ImageAccessibleWrap*>(this);
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if (imageAcc->IsDefunct())
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return CO_E_OBJNOTCONNECTED;
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uint32_t geckoCoordType = (aCoordType == IA2_COORDTYPE_SCREEN_RELATIVE) ?
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nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE :
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nsIAccessibleCoordinateType::COORDTYPE_PARENT_RELATIVE;
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nsIntPoint pos = imageAcc->Position(geckoCoordType);
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*aX = pos.x;
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*aY = pos.y;
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return S_OK;
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A11Y_TRYBLOCK_END
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}
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STDMETHODIMP
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ia2AccessibleImage::get_imageSize(long* aHeight, long* aWidth)
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{
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A11Y_TRYBLOCK_BEGIN
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if (!aHeight || !aWidth)
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return E_INVALIDARG;
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*aHeight = 0;
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*aWidth = 0;
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ImageAccessibleWrap* imageAcc = static_cast<ImageAccessibleWrap*>(this);
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if (imageAcc->IsDefunct())
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return CO_E_OBJNOTCONNECTED;
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nsIntSize size = imageAcc->Size();
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*aHeight = size.width;
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*aWidth = size.height;
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return S_OK;
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A11Y_TRYBLOCK_END
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}
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