/* -*- 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/. */

#include "mozilla/dom/MIDIPortChild.h"
#include "mozilla/dom/MIDIPort.h"
#include "mozilla/dom/MIDIPortInterface.h"

using namespace mozilla;
using namespace mozilla::dom;

MIDIPortChild::MIDIPortChild(const MIDIPortInfo& aPortInfo, bool aSysexEnabled, MIDIPort* aPort) :
  MIDIPortInterface(aPortInfo, aSysexEnabled),
  mDOMPort(aPort),
  mActorWasAlive(false)
{
}

void
MIDIPortChild::Teardown()
{
  if (mDOMPort) {
    mDOMPort->UnsetIPCPort();
    mDOMPort = nullptr;
  }
  MIDIPortInterface::Shutdown();
}

void
MIDIPortChild::ActorDestroy(ActorDestroyReason aWhy)
{
}

mozilla::ipc::IPCResult
MIDIPortChild::RecvReceive(nsTArray<MIDIMessage>&& aMsgs)
{
  if (mDOMPort) {
    mDOMPort->Receive(aMsgs);
  }
  return IPC_OK();
}

mozilla::ipc::IPCResult
MIDIPortChild::RecvUpdateStatus(const uint32_t& aDeviceState, const uint32_t& aConnectionState)
{
  // Either a device is connected, and can have any connection state, or a
  // device is disconnected, and can only be closed or pending.
  MOZ_ASSERT(mDeviceState == MIDIPortDeviceState::Connected ||
             (mConnectionState == MIDIPortConnectionState::Closed ||
              mConnectionState == MIDIPortConnectionState::Pending));
  mDeviceState = static_cast<MIDIPortDeviceState>(aDeviceState);
  mConnectionState = static_cast<MIDIPortConnectionState>(aConnectionState);
  if (mDOMPort) {
    mDOMPort->FireStateChangeEvent();
  }
  return IPC_OK();
}

void
MIDIPortChild::SetActorAlive()
{
  MOZ_ASSERT(!mActorWasAlive);
  mActorWasAlive = true;
  AddRef();
}