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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /accessible/windows/msaa/MsaaRootAccessible.cpp | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'accessible/windows/msaa/MsaaRootAccessible.cpp')
-rw-r--r-- | accessible/windows/msaa/MsaaRootAccessible.cpp | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/accessible/windows/msaa/MsaaRootAccessible.cpp b/accessible/windows/msaa/MsaaRootAccessible.cpp new file mode 100644 index 0000000000..ac747ff3d1 --- /dev/null +++ b/accessible/windows/msaa/MsaaRootAccessible.cpp @@ -0,0 +1,67 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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 "mozilla/a11y/DocAccessibleParent.h" +#include "mozilla/dom/BrowserParent.h" +#include "mozilla/WindowsVersion.h" +#include "MsaaRootAccessible.h" +#include "Relation.h" +#include "RootAccessible.h" +#include "EnumVariant.h" + +#include <oleauto.h> + +using namespace mozilla; +using namespace mozilla::a11y; + +RootAccessible* MsaaRootAccessible::RootAcc() { + return static_cast<RootAccessible*>(LocalAcc()); +} + +//////////////////////////////////////////////////////////////////////////////// +// Aggregated IUnknown +HRESULT +MsaaRootAccessible::InternalQueryInterface(REFIID aIid, void** aOutInterface) { + if (!aOutInterface) { + return E_INVALIDARG; + } + + // InternalQueryInterface should always return its internal unknown + // when queried for IID_IUnknown... + if (aIid == IID_IUnknown) { + RefPtr<IUnknown> punk(&mInternalUnknown); + punk.forget(aOutInterface); + return S_OK; + } + + // ...Otherwise we pass through to the base COM implementation of + // QueryInterface which is provided by MsaaDocAccessible. + return MsaaDocAccessible::QueryInterface(aIid, aOutInterface); +} + +ULONG +MsaaRootAccessible::InternalAddRef() { return MsaaDocAccessible::AddRef(); } + +ULONG +MsaaRootAccessible::InternalRelease() { return MsaaDocAccessible::Release(); } + +already_AddRefed<IUnknown> MsaaRootAccessible::Aggregate(IUnknown* aOuter) { + MOZ_ASSERT(mOuter && + (mOuter == &mInternalUnknown || mOuter == aOuter || !aOuter)); + if (!aOuter) { + // If there is no aOuter then we should always set mOuter to + // mInternalUnknown. This is standard COM aggregation stuff. + mOuter = &mInternalUnknown; + return nullptr; + } + + mOuter = aOuter; + return GetInternalUnknown(); +} + +already_AddRefed<IUnknown> MsaaRootAccessible::GetInternalUnknown() { + RefPtr<IUnknown> result(&mInternalUnknown); + return result.forget(); +} |