dom/tv/TVTuner.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   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_TVTuner_h
   8 #define mozilla_dom_TVTuner_h
   9
  10 #include "mozilla/DOMEventTargetHelper.h"
  11 // Include TVTunerBinding.h since enum TVSourceType can't be forward declared.
  12 #include "mozilla/dom/TVTunerBinding.h"
  13
  14 class nsITVService;
  15 class nsITVTunerData;
  16
  17 namespace mozilla {
  18
  19 class DOMMediaStream;
  20
  21 namespace dom {
  22
  23 class Promise;
  24 class TVSource;
  25
  26 class TVTuner MOZ_FINAL : public DOMEventTargetHelper
  27 {
  28 public:
  29   NS_DECL_ISUPPORTS_INHERITED
  30   NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TVTuner, DOMEventTargetHelper)
  31
  32   static already_AddRefed<TVTuner> Create(nsPIDOMWindow* aWindow,
  33                                           nsITVTunerData* aData);
  34
  35   // WebIDL (internal functions)
  36
  37   virtual JSObject* WrapObject(JSContext *aCx) MOZ_OVERRIDE;
  38
  39   nsresult SetCurrentSource(TVSourceType aSourceType);
  40
  41   nsresult DispatchTVEvent(nsIDOMEvent* aEvent);
  42
  43   // WebIDL (public APIs)
  44
  45   void GetSupportedSourceTypes(nsTArray<TVSourceType>& aSourceTypes,
  46                                ErrorResult& aRv) const;
  47
  48   already_AddRefed<Promise> GetSources(ErrorResult& aRv);
  49
  50   already_AddRefed<Promise> SetCurrentSource(const TVSourceType aSourceType,
  51                                              ErrorResult& aRv);
  52
  53   void GetId(nsAString& aId) const;
  54
  55   already_AddRefed<TVSource> GetCurrentSource() const;
  56
  57   already_AddRefed<DOMMediaStream> GetStream() const;
  58
  59   IMPL_EVENT_HANDLER(currentsourcechanged);
  60
  61 private:
  62   explicit TVTuner(nsPIDOMWindow* aWindow);
  63
  64   ~TVTuner();
  65
  66   bool Init(nsITVTunerData* aData);
  67
  68   nsresult InitMediaStream();
  69
  70   nsresult DispatchCurrentSourceChangedEvent(TVSource* aSource);
  71
  72   nsCOMPtr<nsITVService> mTVService;
  73   nsRefPtr<DOMMediaStream> mStream;
  74   nsRefPtr<TVSource> mCurrentSource;
  75   nsTArray<nsRefPtr<TVSource>> mSources;
  76   nsString mId;
  77   nsTArray<TVSourceType> mSupportedSourceTypes;
  78 };
  79
  80 } // namespace dom
  81 } // namespace mozilla
  82
  83 #endif // mozilla_dom_TVTuner_h