dom/midi/MIDIInputMap.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_dom_MIDIInputMap_h
   8 #define mozilla_dom_MIDIInputMap_h
   9
  10 #include "mozilla/dom/MIDIPort.h"
  11 #include "nsCOMPtr.h"
  12 #include "nsTHashMap.h"
  13 #include "nsWrapperCache.h"
  14
  15 class nsPIDOMWindowInner;
  16
  17 namespace mozilla::dom {
  18
  19 /**
  20  * Maplike DOM object that holds a list of all MIDI input ports available for
  21  * access. Almost all functions are implemented automatically by WebIDL.
  22  */
  23 class MIDIInputMap final : public nsISupports, public nsWrapperCache {
  24  public:
  25   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
  26   NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(MIDIInputMap)
  27   nsPIDOMWindowInner* GetParentObject() const { return mParent; }
  28
  29   explicit MIDIInputMap(nsPIDOMWindowInner* aParent);
  30   JSObject* WrapObject(JSContext* aCx,
  31                        JS::Handle<JSObject*> aGivenProto) override;
  32   bool Has(nsAString& aId) { return mPorts.Get(aId) != nullptr; }
  33   void Insert(nsAString& aId, RefPtr<MIDIPort> aPort) {
  34     mPorts.InsertOrUpdate(aId, aPort);
  35   }
  36   void Remove(nsAString& aId) { mPorts.Remove(aId); }
  37
  38  private:
  39   ~MIDIInputMap() = default;
  40   nsTHashMap<nsString, RefPtr<MIDIPort>> mPorts;
  41   nsCOMPtr<nsPIDOMWindowInner> mParent;
  42 };
  43
  44 }  // namespace mozilla::dom
  45
  46 #endif  // mozilla_dom_MIDIInputMap_h