dom/midi/MIDIPortChild.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_MIDIPortChild_h
   8 #define mozilla_dom_MIDIPortChild_h
   9
  10 #include "mozilla/dom/MIDIPortInterface.h"
  11 #include "mozilla/dom/PMIDIPortChild.h"
  12
  13 namespace mozilla::dom {
  14
  15 class MIDIPort;
  16 class MIDIPortInfo;
  17
  18 /**
  19  * Child actor for a MIDIPort object. Each MIDIPort DOM object in JS has a its
  20  * own child actor. The lifetime of the actor object is dependent on the
  21  * lifetime of the JS object.
  22  *
  23  */
  24 class MIDIPortChild final : public PMIDIPortChild, public MIDIPortInterface {
  25  public:
  26   NS_INLINE_DECL_REFCOUNTING(MIDIPortChild, override);
  27   mozilla::ipc::IPCResult RecvReceive(nsTArray<MIDIMessage>&& aMsgs);
  28
  29   virtual void ActorDestroy(ActorDestroyReason aWhy) override;
  30
  31   mozilla::ipc::IPCResult RecvUpdateStatus(const uint32_t& aDeviceState,
  32                                            const uint32_t& aConnectionState);
  33
  34   MIDIPortChild(const MIDIPortInfo& aPortInfo, bool aSysexEnabled,
  35                 MIDIPort* aPort);
  36   nsresult GenerateStableId(const nsACString& aOrigin);
  37   const nsString& StableId() { return mStableId; };
  38
  39   void DetachOwner() { mDOMPort = nullptr; }
  40
  41  private:
  42   ~MIDIPortChild() = default;
  43   // Pointer to the DOM object this actor represents. The actor cannot outlive
  44   // the DOM object.
  45   MIDIPort* mDOMPort;
  46   nsString mStableId;
  47 };
  48 }  // namespace mozilla::dom
  49
  50 #endif