#include "config.h"
#include "MediaDevices.h"
#if ENABLE(MEDIA_STREAM)
#include "Document.h"
#include "MediaConstraintsImpl.h"
#include "MediaDevicesRequest.h"
#include "MediaTrackSupportedConstraints.h"
#include "RealtimeMediaSourceCenter.h"
#include "UserMediaRequest.h"
namespace WebCore {
inline MediaDevices::MediaDevices(Document& document)
: ContextDestructionObserver(&document)
{
}
Ref<MediaDevices> MediaDevices::create(Document& document)
{
return adoptRef(*new MediaDevices(document));
}
Document* MediaDevices::document() const
{
return downcast<Document>(scriptExecutionContext());
}
static Ref<MediaConstraintsImpl> createMediaConstraintsImpl(const Variant<bool, MediaTrackConstraints>& constraints)
{
return WTF::switchOn(constraints,
[&] (bool constraints) {
return MediaConstraintsImpl::create({ }, { }, constraints);
},
[&] (const MediaTrackConstraints& constraints) {
return createMediaConstraintsImpl(constraints);
}
);
}
ExceptionOr<void> MediaDevices::getUserMedia(const StreamConstraints& constraints, Promise&& promise) const
{
auto* document = this->document();
if (!document)
return Exception { INVALID_STATE_ERR };
return UserMediaRequest::start(*document, createMediaConstraintsImpl(constraints.audio), createMediaConstraintsImpl(constraints.video), WTFMove(promise));
}
void MediaDevices::enumerateDevices(EnumerateDevicesPromise&& promise) const
{
auto* document = this->document();
if (!document)
return;
MediaDevicesRequest::create(*document, WTFMove(promise))->start();
}
MediaTrackSupportedConstraints MediaDevices::getSupportedConstraints()
{
auto& supported = RealtimeMediaSourceCenter::singleton().supportedConstraints();
MediaTrackSupportedConstraints result;
result.width = supported.supportsWidth();
result.height = supported.supportsHeight();
result.aspectRatio = supported.supportsAspectRatio();
result.frameRate = supported.supportsFrameRate();
result.facingMode = supported.supportsFacingMode();
result.volume = supported.supportsVolume();
result.sampleRate = supported.supportsSampleRate();
result.sampleSize = supported.supportsSampleSize();
result.echoCancellation = supported.supportsEchoCancellation();
result.deviceId = supported.supportsDeviceId();
result.groupId = supported.supportsGroupId();
return result;
}
}
#endif // ENABLE(MEDIA_STREAM)