/* 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_MediaDevices_h

#define mozilla_dom_MediaDevices_h

#include "mozilla/ErrorResult.h"

#include "nsISupportsImpl.h"

#include "mozilla/DOMEventTargetHelper.h"

#include "mozilla/dom/BindingUtils.h"

#include "nsPIDOMWindow.h"

#include "mozilla/media/DeviceChangeCallback.h"

namespace mozilla {

namespace dom {

class Promise;

struct MediaStreamConstraints;

struct MediaTrackSupportedConstraints;

#define MOZILLA_DOM_MEDIADEVICES_IMPLEMENTATION_IID \

{ 0x2f784d8a, 0x7485, 0x4280, \

 { 0x9a, 0x36, 0x74, 0xa4, 0xd6, 0x71, 0xa6, 0xc8 } }

class MediaDevices final : public DOMEventTargetHelper

                          ,public DeviceChangeCallback

{

public:

  explicit MediaDevices(nsPIDOMWindowInner* aWindow) :

    DOMEventTargetHelper(aWindow) {}

  NS_DECL_ISUPPORTS_INHERITED

  NS_DECLARE_STATIC_IID_ACCESSOR(MOZILLA_DOM_MEDIADEVICES_IMPLEMENTATION_IID)

  JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> aGivenProto) override;

  // No code needed, as MediaTrackSupportedConstraints members default to true.

  void GetSupportedConstraints(MediaTrackSupportedConstraints& aResult) {};

  already_AddRefed<Promise>

  GetUserMedia(const MediaStreamConstraints& aConstraints,

         CallerType aCallerType, ErrorResult &aRv);

  already_AddRefed<Promise>

  EnumerateDevices(CallerType aCallerType, ErrorResult &aRv);

  virtual void OnDeviceChange() override;

  mozilla::dom::EventHandlerNonNull* GetOndevicechange();

  void SetOndevicechange(mozilla::dom::EventHandlerNonNull* aCallback);

  void EventListenerAdded(nsAtom* aType) override;

  using DOMEventTargetHelper::EventListenerAdded;

private:

  class GumResolver;

  class EnumDevResolver;

  class GumRejecter;

  virtual ~MediaDevices();

  nsCOMPtr<nsITimer> mFuzzTimer;

};

NS_DEFINE_STATIC_IID_ACCESSOR(MediaDevices,

                              MOZILLA_DOM_MEDIADEVICES_IMPLEMENTATION_IID)

} // namespace dom

} // namespace mozilla

#endif // mozilla_dom_MediaDevices_h