gecko-dev/dom/tv/TVSource.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_TVSource_h
#define mozilla_dom_TVSource_h
#include "mozilla/DOMEventTargetHelper.h"
// Include TVScanningStateChangedEventBinding.h since enum TVScanningState can't
// be forward declared.
#include "mozilla/dom/TVScanningStateChangedEventBinding.h"
// Include TVSourceBinding.h since enum TVSourceType can't be forward declared.
#include "mozilla/dom/TVSourceBinding.h"
class nsITVChannelData;
class nsITVProgramData;
class nsITVService;
namespace mozilla {
namespace dom {
class Promise;
class TVChannel;
class TVProgram;
class TVTuner;
class TVSource final : public DOMEventTargetHelper
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(TVSource, DOMEventTargetHelper)
static already_AddRefed<TVSource> Create(nsPIDOMWindow* aWindow,
TVSourceType aType,
TVTuner* aTuner);
// WebIDL (internal functions)
virtual JSObject* WrapObject(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
nsresult SetCurrentChannel(nsITVChannelData* aChannelData);
nsresult UnsetCurrentChannel();
void SetIsScanning(bool aIsScanning);
nsresult DispatchTVEvent(nsIDOMEvent* aEvent);
nsresult NotifyChannelScanned(nsITVChannelData* aChannelData);
nsresult NotifyChannelScanComplete();
nsresult NotifyChannelScanStopped();
nsresult NotifyEITBroadcasted(nsITVChannelData* aChannelData,
nsITVProgramData** aProgramDataList,
uint32_t aCount);
// WebIDL (public APIs)
already_AddRefed<Promise> GetChannels(ErrorResult& aRv);
already_AddRefed<Promise> SetCurrentChannel(const nsAString& aChannelNumber,
ErrorResult& aRv);
already_AddRefed<Promise> StartScanning(const TVStartScanningOptions& aOptions,
ErrorResult& aRv);
already_AddRefed<Promise> StopScanning(ErrorResult& aRv);
already_AddRefed<TVTuner> Tuner() const;
TVSourceType Type() const;
bool IsScanning() const;
already_AddRefed<TVChannel> GetCurrentChannel() const;
IMPL_EVENT_HANDLER(currentchannelchanged);
IMPL_EVENT_HANDLER(eitbroadcasted);
IMPL_EVENT_HANDLER(scanningstatechanged);
private:
TVSource(nsPIDOMWindow* aWindow,
TVSourceType aType,
TVTuner* aTuner);
~TVSource();
bool Init();
void Shutdown();
nsresult DispatchCurrentChannelChangedEvent(TVChannel* aChannel);
nsresult DispatchScanningStateChangedEvent(TVScanningState aState,
TVChannel* aChannel);
nsresult DispatchEITBroadcastedEvent(const Sequence<OwningNonNull<TVProgram>>& aPrograms);
nsCOMPtr<nsITVService> mTVService;
RefPtr<TVTuner> mTuner;
RefPtr<TVChannel> mCurrentChannel;
TVSourceType mType;
bool mIsScanning;
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_TVSource_h