зеркало из https://github.com/mozilla/gecko-dev.git
53 строки
1.5 KiB
C++
53 строки
1.5 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_dom_ipc_VsyncWorkerChild_h
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#define mozilla_dom_ipc_VsyncWorkerChild_h
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#include "mozilla/dom/VsyncChild.h"
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#include "mozilla/RefPtr.h"
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#include "nsISupportsImpl.h"
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namespace mozilla::dom {
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class DedicatedWorkerGlobalScope;
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class IPCWorkerRef;
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class WorkerPrivate;
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// The PVsyncWorkerChild actor receives a vsync event from the main process and
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// delivers it to the child process. This is specific for workers which wish to
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// subscribe to vsync events to drive requestAnimationFrame callbacks.
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class VsyncWorkerChild final : public VsyncChild {
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NS_INLINE_DECL_REFCOUNTING(VsyncWorkerChild, override)
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friend class PVsyncChild;
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public:
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VsyncWorkerChild();
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bool Initialize(WorkerPrivate* aWorkerPrivate);
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void Destroy();
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void TryObserve();
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void TryUnobserve();
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private:
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~VsyncWorkerChild() override;
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mozilla::ipc::IPCResult RecvNotify(const VsyncEvent& aVsync,
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const float& aVsyncRate) override;
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void ActorDestroy(ActorDestroyReason aActorDestroyReason) override;
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RefPtr<IPCWorkerRef> mWorkerRef;
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bool mObserving = false;
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};
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} // namespace mozilla::dom
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#endif // mozilla_dom_ipc_VsyncWorkerChild_h
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