62 lines
2.4 KiB
C++
62 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "mozilla/a11y/PlatformChild.h"
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#include "mozilla/mscom/EnsureMTA.h"
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#include "mozilla/mscom/InterceptorLog.h"
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#include "Accessible2.h"
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#include "Accessible2_2.h"
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#include "AccessibleHypertext2.h"
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#include "AccessibleTableCell.h"
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#include "AccessibleHypertext2_i.c"
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namespace mozilla {
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namespace a11y {
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/**
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* Unfortunately the COM interceptor does not intrinsically handle array
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* outparams. Instead we manually define the relevant metadata here, and
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* register it in a call to mozilla::mscom::RegisterArrayData.
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* @see mozilla::mscom::ArrayData
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*/
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static const mozilla::mscom::ArrayData sPlatformChildArrayData[] = {
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{IID_IEnumVARIANT, 3, 1, VT_DISPATCH, IID_IDispatch, 2},
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{IID_IAccessible2, 30, 1, VT_UNKNOWN | VT_BYREF, IID_IAccessibleRelation, 2},
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{IID_IAccessibleRelation, 7, 1, VT_UNKNOWN | VT_BYREF, IID_IUnknown, 2},
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{IID_IAccessible2_2, 48, 2, VT_UNKNOWN | VT_BYREF, IID_IUnknown, 3,
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mozilla::mscom::ArrayData::Flag::eAllocatedByServer},
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{IID_IAccessibleTableCell, 4, 0, VT_UNKNOWN | VT_BYREF, IID_IUnknown, 1,
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mozilla::mscom::ArrayData::Flag::eAllocatedByServer},
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{IID_IAccessibleTableCell, 7, 0, VT_UNKNOWN | VT_BYREF, IID_IUnknown, 1,
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mozilla::mscom::ArrayData::Flag::eAllocatedByServer},
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{IID_IAccessibleHypertext2, 25, 0, VT_UNKNOWN | VT_BYREF, IID_IUnknown, 1,
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mozilla::mscom::ArrayData::Flag::eAllocatedByServer}
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};
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// Type libraries are thread-neutral, so we can register those from any
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// apartment. OTOH, proxies must be registered from within the apartment where
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// we intend to instantiate them. Therefore RegisterProxy() must be called
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// via EnsureMTA.
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PlatformChild::PlatformChild()
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: mAccTypelib(mozilla::mscom::RegisterTypelib(L"oleacc.dll",
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mozilla::mscom::RegistrationFlags::eUseSystemDirectory))
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, mMiscTypelib(mozilla::mscom::RegisterTypelib(L"Accessible.tlb"))
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{
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mozilla::mscom::InterceptorLog::Init();
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mozilla::mscom::RegisterArrayData(sPlatformChildArrayData);
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UniquePtr<mozilla::mscom::RegisteredProxy> ia2Proxy;
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mozilla::mscom::EnsureMTA([&ia2Proxy]() -> void {
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ia2Proxy = Move(mozilla::mscom::RegisterProxy(L"ia2marshal.dll"));
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});
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mIA2Proxy = Move(ia2Proxy);
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}
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} // namespace a11y
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} // namespace mozilla
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