gecko-dev/dom/media/MediaDevices.h

79 строки
2.4 KiB
C++

/* 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 "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, ErrorResult &aRv);
already_AddRefed<Promise>
EnumerateDevices(ErrorResult &aRv);
virtual void OnDeviceChange() override;
mozilla::dom::EventHandlerNonNull* GetOndevicechange();
void SetOndevicechange(mozilla::dom::EventHandlerNonNull* aCallback);
NS_IMETHOD AddEventListener(const nsAString& aType,
nsIDOMEventListener* aListener,
bool aUseCapture, bool aWantsUntrusted,
uint8_t optional_argc) override;
virtual void AddEventListener(const nsAString& aType,
dom::EventListener* aListener,
const dom::AddEventListenerOptionsOrBoolean& aOptions,
const dom::Nullable<bool>& aWantsUntrusted,
ErrorResult& aRv) override;
private:
class GumResolver;
class EnumDevResolver;
class GumRejecter;
virtual ~MediaDevices() {}
};
NS_DEFINE_STATIC_IID_ACCESSOR(MediaDevices,
MOZILLA_DOM_MEDIADEVICES_IMPLEMENTATION_IID)
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_MediaDevices_h