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 --- ipc/glue/Neutering.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 ipc/glue/Neutering.h (limited to 'ipc/glue/Neutering.h') diff --git a/ipc/glue/Neutering.h b/ipc/glue/Neutering.h new file mode 100644 index 0000000000..44cbe042ae --- /dev/null +++ b/ipc/glue/Neutering.h @@ -0,0 +1,70 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=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_ipc_Neutering_h +#define mozilla_ipc_Neutering_h + +/** + * This header declares RAII wrappers for Window neutering. See + * WindowsMessageLoop.cpp for more details. + */ + +namespace mozilla { +namespace ipc { + +/** + * This class is a RAII wrapper around Window neutering. As long as a + * NeuteredWindowRegion object is instantiated, Win32 windows belonging to the + * current thread will be neutered. It is safe to nest multiple instances of + * this class. + */ +class MOZ_RAII NeuteredWindowRegion { + public: + explicit NeuteredWindowRegion(bool aDoNeuter); + ~NeuteredWindowRegion(); + + /** + * This function clears any backlog of nonqueued messages that are pending for + * the current thread. + */ + void PumpOnce(); + + private: + bool mNeuteredByThis; +}; + +/** + * This class is analagous to MutexAutoUnlock for Mutex; it is an RAII class + * that is to be instantiated within a NeuteredWindowRegion, thus temporarily + * disabling neutering for the remainder of its enclosing block. + * @see NeuteredWindowRegion + */ +class MOZ_RAII DeneuteredWindowRegion { + public: + explicit DeneuteredWindowRegion(); + ~DeneuteredWindowRegion(); + + private: + bool mReneuter; +}; + +class MOZ_RAII SuppressedNeuteringRegion { + public: + explicit SuppressedNeuteringRegion(); + ~SuppressedNeuteringRegion(); + + static inline bool IsNeuteringSuppressed() { return sSuppressNeutering; } + + private: + bool mReenable; + + static bool sSuppressNeutering; +}; + +} // namespace ipc +} // namespace mozilla + +#endif // mozilla_ipc_Neutering_h -- cgit v1.2.3