tenfourfox/accessible/windows/msaa/ApplicationAccessibleWrap.cpp

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2017-04-19 07:56:45 +00:00
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim:expandtab:shiftwidth=4:tabstop=4:
*/
/* 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 "ApplicationAccessibleWrap.h"
#include "AccessibleApplication_i.c"
#include "IUnknownImpl.h"
#include "nsIGfxInfo.h"
#include "nsIPersistentProperties2.h"
#include "nsServiceManagerUtils.h"
#include "mozilla/Services.h"
using namespace mozilla;
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// nsISupports
NS_IMPL_ISUPPORTS_INHERITED0(ApplicationAccessibleWrap,
ApplicationAccessible)
already_AddRefed<nsIPersistentProperties>
ApplicationAccessibleWrap::NativeAttributes()
{
nsCOMPtr<nsIPersistentProperties> attributes =
do_CreateInstance(NS_PERSISTENTPROPERTIES_CONTRACTID);
nsCOMPtr<nsIGfxInfo> gfxInfo = services::GetGfxInfo();
if (gfxInfo) {
bool isD2DEnabled = false;
gfxInfo->GetD2DEnabled(&isD2DEnabled);
nsAutoString unused;
attributes->SetStringProperty(
NS_LITERAL_CSTRING("D2D"),
isD2DEnabled ? NS_LITERAL_STRING("true") : NS_LITERAL_STRING("false"),
unused);
}
return attributes.forget();
}
////////////////////////////////////////////////////////////////////////////////
// IUnknown
STDMETHODIMP
ApplicationAccessibleWrap::QueryInterface(REFIID iid, void** ppv)
{
if (!ppv)
return E_INVALIDARG;
*ppv = nullptr;
if (IID_IAccessibleApplication == iid) {
*ppv = static_cast<IAccessibleApplication*>(this);
(reinterpret_cast<IUnknown*>(*ppv))->AddRef();
return S_OK;
}
return AccessibleWrap::QueryInterface(iid, ppv);
}
////////////////////////////////////////////////////////////////////////////////
// IAccessibleApplication
STDMETHODIMP
ApplicationAccessibleWrap::get_appName(BSTR* aName)
{
A11Y_TRYBLOCK_BEGIN
if (!aName)
return E_INVALIDARG;
*aName = nullptr;
if (IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsAutoString name;
AppName(name);
if (name.IsEmpty())
return S_FALSE;
*aName = ::SysAllocStringLen(name.get(), name.Length());
return *aName ? S_OK : E_OUTOFMEMORY;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ApplicationAccessibleWrap::get_appVersion(BSTR* aVersion)
{
A11Y_TRYBLOCK_BEGIN
if (!aVersion)
return E_INVALIDARG;
*aVersion = nullptr;
if (IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsAutoString version;
AppVersion(version);
if (version.IsEmpty())
return S_FALSE;
*aVersion = ::SysAllocStringLen(version.get(), version.Length());
return *aVersion ? S_OK : E_OUTOFMEMORY;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ApplicationAccessibleWrap::get_toolkitName(BSTR* aName)
{
A11Y_TRYBLOCK_BEGIN
if (!aName)
return E_INVALIDARG;
if (IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsAutoString name;
PlatformName(name);
if (name.IsEmpty())
return S_FALSE;
*aName = ::SysAllocStringLen(name.get(), name.Length());
return *aName ? S_OK : E_OUTOFMEMORY;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
ApplicationAccessibleWrap::get_toolkitVersion(BSTR* aVersion)
{
A11Y_TRYBLOCK_BEGIN
if (!aVersion)
return E_INVALIDARG;
*aVersion = nullptr;
if (IsDefunct())
return CO_E_OBJNOTCONNECTED;
nsAutoString version;
PlatformVersion(version);
if (version.IsEmpty())
return S_FALSE;
*aVersion = ::SysAllocStringLen(version.get(), version.Length());
return *aVersion ? S_OK : E_OUTOFMEMORY;
A11Y_TRYBLOCK_END
}