From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- accessible/windows/msaa/MsaaIdGenerator.h | 48 +++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 accessible/windows/msaa/MsaaIdGenerator.h (limited to 'accessible/windows/msaa/MsaaIdGenerator.h') diff --git a/accessible/windows/msaa/MsaaIdGenerator.h b/accessible/windows/msaa/MsaaIdGenerator.h new file mode 100644 index 0000000000..cd852b7e4d --- /dev/null +++ b/accessible/windows/msaa/MsaaIdGenerator.h @@ -0,0 +1,48 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* 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/. */ + +#ifndef mozilla_a11y_MsaaIdGenerator_h +#define mozilla_a11y_MsaaIdGenerator_h + +#include "mozilla/a11y/IDSet.h" + +#include "mozilla/dom/ipc/IdType.h" +#include "mozilla/NotNull.h" +#include "nsITimer.h" + +namespace mozilla { +namespace a11y { + +class MsaaAccessible; +class sdnAccessible; + +/** + * This class is responsible for generating child IDs used by our MSAA + * implementation. + */ +class MsaaIdGenerator { + public: + uint32_t GetID(); + void ReleaseID(NotNull aMsaaAcc); + void ReleaseID(NotNull aSdnAcc); + + private: + bool ReleaseID(uint32_t aID); + void ReleasePendingIDs(); + + private: + static constexpr uint32_t kNumFullIDBits = 31UL; + IDSet mIDSet{kNumFullIDBits}; + nsTArray mIDsToRelease; + nsCOMPtr mReleaseIDTimer; + // Whether GetID has been called yet this session. + bool mGetIDCalled = false; +}; + +} // namespace a11y +} // namespace mozilla + +#endif // mozilla_a11y_MsaaIdGenerator_h -- cgit v1.2.3