1 files changed, 59 insertions, 0 deletions
diff --git a/dom/midi/MIDIPortChild.cpp b/dom/midi/MIDIPortChild.cpp
new file mode 100644
index 0000000000..d649d5540e
--- /dev/null
+++ b/dom/midi/MIDIPortChild.cpp
@@ -0,0 +1,59 @@
+/* -*- 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"
+#include "nsContentUtils.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+MIDIPortChild::MIDIPortChild(const MIDIPortInfo& aPortInfo, bool aSysexEnabled,
+                             MIDIPort* aPort)
+    : MIDIPortInterface(aPortInfo, aSysexEnabled), mDOMPort(aPort) {}
+
+void MIDIPortChild::ActorDestroy(ActorDestroyReason aWhy) {
+  if (mDOMPort) {
+    mDOMPort->UnsetIPCPort();
+    MOZ_ASSERT(!mDOMPort);
+  }
+  MIDIPortInterface::Shutdown();
+}
+
+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();
+}
+
+nsresult MIDIPortChild::GenerateStableId(const nsACString& aOrigin) {
+  const size_t kIdLength = 64;
+  mStableId.SetCapacity(kIdLength);
+  mStableId.Append(Name());
+  mStableId.Append(Manufacturer());
+  mStableId.Append(Version());
+  nsContentUtils::AnonymizeId(mStableId, aOrigin,
+                              nsContentUtils::OriginFormat::Plain);
+  return NS_OK;
+}