зеркало из https://github.com/mozilla/gecko-dev.git
54 строки
1.9 KiB
C++
54 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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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_MIDIPortParent_h
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#define mozilla_dom_MIDIPortParent_h
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#include "mozilla/dom/PMIDIPortParent.h"
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#include "mozilla/dom/MIDIPortBinding.h"
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#include "mozilla/dom/MIDIPortInterface.h"
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// Header file contents
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namespace mozilla {
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namespace dom {
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/**
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* Actor representing the parent (PBackground thread) side of a MIDIPort object.
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*
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*/
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class MIDIPortParent final :
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public PMIDIPortParent,
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public MIDIPortInterface
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{
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public:
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NS_INLINE_DECL_REFCOUNTING(MIDIPortParent);
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void ActorDestroy(ActorDestroyReason) override;
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mozilla::ipc::IPCResult RecvSend(nsTArray<MIDIMessage>&& aMsg) override;
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mozilla::ipc::IPCResult RecvOpen() override;
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mozilla::ipc::IPCResult RecvClose() override;
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mozilla::ipc::IPCResult RecvClear() override;
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mozilla::ipc::IPCResult RecvShutdown() override;
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MOZ_IMPLICIT MIDIPortParent(const MIDIPortInfo& aPortInfo, const bool aSysexEnabled);
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// Sends the current port status to the child actor. May also send message
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// buffer if required.
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bool SendUpdateStatus(const MIDIPortDeviceState& aState,
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const MIDIPortConnectionState& aConnection);
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uint32_t GetInternalId() const { return mInternalId; }
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void Teardown();
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protected:
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~MIDIPortParent() = default;
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// Queue of messages that needs to be sent. Since sending a message on a
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// closed port opens it, we sometimes have to buffer messages from the time
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// Send() is called until the time we get a device state change to Opened.
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nsTArray<MIDIMessage> mMessageQueue;
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const uint32_t mInternalId;
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};
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} // namespace dom
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} // namespace mozilla
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#endif
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