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-rw-r--r--dom/midi/MIDIInputMap.h46
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diff --git a/dom/midi/MIDIInputMap.h b/dom/midi/MIDIInputMap.h
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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_MIDIInputMap_h
+#define mozilla_dom_MIDIInputMap_h
+
+#include "mozilla/dom/MIDIPort.h"
+#include "nsCOMPtr.h"
+#include "nsTHashMap.h"
+#include "nsWrapperCache.h"
+
+class nsPIDOMWindowInner;
+
+namespace mozilla::dom {
+
+/**
+ * Maplike DOM object that holds a list of all MIDI input ports available for
+ * access. Almost all functions are implemented automatically by WebIDL.
+ */
+class MIDIInputMap final : public nsISupports, public nsWrapperCache {
+ public:
+ NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+ NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(MIDIInputMap)
+ nsPIDOMWindowInner* GetParentObject() const { return mParent; }
+
+ explicit MIDIInputMap(nsPIDOMWindowInner* aParent);
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+ bool Has(nsAString& aId) { return mPorts.Get(aId) != nullptr; }
+ void Insert(nsAString& aId, RefPtr<MIDIPort> aPort) {
+ mPorts.InsertOrUpdate(aId, aPort);
+ }
+ void Remove(nsAString& aId) { mPorts.Remove(aId); }
+
+ private:
+ ~MIDIInputMap() = default;
+ nsTHashMap<nsString, RefPtr<MIDIPort>> mPorts;
+ nsCOMPtr<nsPIDOMWindowInner> mParent;
+};
+
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_MIDIInputMap_h