MIDIInput.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* 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_dom_MIDIInput_h

#define mozilla_dom_MIDIInput_h

#include "mozilla/dom/MIDIPort.h"

struct JSContext;

namespace mozilla::dom {

class MIDIPortInfo;

/**

 * Represents a MIDI Input Port, handles generating incoming message events.

*/

class MIDIInput final : public MIDIPort {

 public:

  static RefPtr<MIDIInput> Create(nsPIDOMWindowInner* aWindow,

                                  MIDIAccess* aMIDIAccessParent,

                                  const MIDIPortInfo& aPortInfo,

                                  const bool aSysexEnabled);

  ~MIDIInput() = default;

  JSObject* WrapObject(JSContext* aCx,

                       JS::Handle<JSObject*> aGivenProto) override;

  IMPL_EVENT_HANDLER(midimessage);

  void StateChange() override;

  void EventListenerAdded(nsAtom* aType) override;

  void DisconnectFromOwner() override;

 private:

  explicit MIDIInput(nsPIDOMWindowInner* aWindow);

  // Takes an array of IPC MIDIMessage objects and turns them into

  // MIDIMessageEvents, which it then fires.

  void Receive(const nsTArray<MIDIMessage>& aMsgs) override;

  void KeepAliveOnMidimessage();

  void DontKeepAliveOnMidimessage();

  // If true this object will be kept alive even without direct JS references

  bool mKeepAlive;

};

}  // namespace mozilla::dom

#endif  // mozilla_dom_MIDIInput_h