1 files changed, 53 insertions, 0 deletions
diff --git a/dom/midi/MIDIInput.h b/dom/midi/MIDIInput.h
new file mode 100644
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+++ b/dom/midi/MIDIInput.h
@@ -0,0 +1,53 @@
+/* -*- 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 {
+namespace dom {
+
+class MIDIPortInfo;
+
+/**
+ * Represents a MIDI Input Port, handles generating incoming message events.
+ *
+ */
+class MIDIInput final : public MIDIPort {
+ public:
+  static MIDIInput* Create(nsPIDOMWindowInner* aWindow,
+                           MIDIAccess* aMIDIAccessParent,
+                           const MIDIPortInfo& aPortInfo,
+                           const bool aSysexEnabled);
+  ~MIDIInput() = default;
+
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;
+
+  // Since we need to be able to open the port on event handler assignment, we
+  // can't use IMPL_EVENT_HANDLER. We have to implement the event handler
+  // functions ourselves.
+
+  // Getter for the event handler callback
+  EventHandlerNonNull* GetOnmidimessage();
+  // Setter for the event handler callback
+  void SetOnmidimessage(EventHandlerNonNull* aCallback);
+
+ private:
+  MIDIInput(nsPIDOMWindowInner* aWindow, MIDIAccess* aMIDIAccessParent);
+  // Takes an array of IPC MIDIMessage objects and turns them into
+  // MIDIMessageEvents, which it then fires.
+  void Receive(const nsTArray<MIDIMessage>& aMsgs) override;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_MIDIInput_h