1 files changed, 57 insertions, 0 deletions
diff --git a/dom/midi/MIDIPortChild.cpp b/dom/midi/MIDIPortChild.cpp
new file mode 100644
index 0000000000..1540c8cae4
--- /dev/null
+++ b/dom/midi/MIDIPortChild.cpp
@@ -0,0 +1,57 @@
+/* -*- 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();
+}