зеркало из https://github.com/mozilla/gecko-dev.git
109 строки
2.6 KiB
C++
109 строки
2.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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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#ifndef mozilla_mscom_ActivationContext_h
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#define mozilla_mscom_ActivationContext_h
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#include "mozilla/Attributes.h"
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#include "mozilla/Move.h"
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#include "mozilla/Result.h"
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#if defined(MOZILLA_INTERNAL_API)
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#include "nsString.h"
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#endif // defined(MOZILLA_INTERNAL_API)
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#include <windows.h>
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namespace mozilla {
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namespace mscom {
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class ActivationContext final
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{
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public:
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ActivationContext()
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: mActCtx(INVALID_HANDLE_VALUE)
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{
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}
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explicit ActivationContext(WORD aResourceId);
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explicit ActivationContext(HMODULE aLoadFromModule, WORD aResourceId = 2);
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ActivationContext(ActivationContext&& aOther);
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ActivationContext& operator=(ActivationContext&& aOther);
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ActivationContext(const ActivationContext& aOther);
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ActivationContext& operator=(const ActivationContext& aOther);
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~ActivationContext();
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explicit operator bool() const
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{
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return mActCtx != INVALID_HANDLE_VALUE;
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}
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#if defined(MOZILLA_INTERNAL_API)
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static Result<uintptr_t,HRESULT> GetCurrent();
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static HRESULT GetCurrentManifestPath(nsAString& aOutManifestPath);
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#endif // defined(MOZILLA_INTERNAL_API)
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private:
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void Init(ACTCTX& aActCtx);
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void AddRef();
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void Release();
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private:
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HANDLE mActCtx;
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friend class ActivationContextRegion;
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};
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class MOZ_NON_TEMPORARY_CLASS ActivationContextRegion final
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{
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public:
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template <typename... Args>
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explicit ActivationContextRegion(Args... aArgs)
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: mActCtx(Forward<Args>(aArgs)...)
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, mActCookie(0)
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{
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Activate();
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}
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ActivationContextRegion();
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explicit ActivationContextRegion(const ActivationContext& aActCtx);
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ActivationContextRegion& operator=(const ActivationContext& aActCtx);
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explicit ActivationContextRegion(ActivationContext&& aActCtx);
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ActivationContextRegion& operator=(ActivationContext&& aActCtx);
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ActivationContextRegion(ActivationContextRegion&& aRgn);
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ActivationContextRegion& operator=(ActivationContextRegion&& aRgn);
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~ActivationContextRegion();
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explicit operator bool() const
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{
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return !!mActCookie;
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}
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ActivationContextRegion(const ActivationContextRegion&) = delete;
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ActivationContextRegion& operator=(const ActivationContextRegion&) = delete;
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bool Deactivate();
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private:
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void Activate();
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ActivationContext mActCtx;
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ULONG_PTR mActCookie;
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};
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} // namespace mscom
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} // namespace mozilla
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#endif // mozilla_mscom_ActivationContext_h
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