electron/browser/media/media_stream_devices_controller.cc
2013-06-21 16:05:28 +08:00

86 lines
2.7 KiB
C++

// Copyright (c) 2013 GitHub, Inc. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "browser/media/media_stream_devices_controller.h"
#include "base/values.h"
#include "browser/media/media_capture_devices_dispatcher.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/common/media_stream_request.h"
namespace atom {
namespace {
bool HasAnyAvailableDevice() {
const content::MediaStreamDevices& audio_devices =
MediaCaptureDevicesDispatcher::GetInstance()->GetAudioCaptureDevices();
const content::MediaStreamDevices& video_devices =
MediaCaptureDevicesDispatcher::GetInstance()->GetVideoCaptureDevices();
return !audio_devices.empty() || !video_devices.empty();
};
} // namespace
MediaStreamDevicesController::MediaStreamDevicesController(
const content::MediaStreamRequest& request,
const content::MediaResponseCallback& callback)
: request_(request),
callback_(callback),
microphone_requested_(
request_.audio_type == content::MEDIA_DEVICE_AUDIO_CAPTURE),
webcam_requested_(
request_.video_type == content::MEDIA_DEVICE_VIDEO_CAPTURE) {
}
MediaStreamDevicesController::~MediaStreamDevicesController() {}
bool MediaStreamDevicesController::TakeAction() {
// Deny the request if there is no device attached to the OS.
if (!HasAnyAvailableDevice()) {
Deny();
return true;
}
Accept();
return true;
}
void MediaStreamDevicesController::Accept() {
// Get the default devices for the request.
content::MediaStreamDevices devices;
if (microphone_requested_ || webcam_requested_) {
switch (request_.request_type) {
case content::MEDIA_OPEN_DEVICE:
// For open device request pick the desired device or fall back to the
// first available of the given type.
MediaCaptureDevicesDispatcher::GetInstance()->GetRequestedDevice(
request_.requested_device_id,
microphone_requested_,
webcam_requested_,
&devices);
break;
case content::MEDIA_DEVICE_ACCESS:
case content::MEDIA_GENERATE_STREAM:
case content::MEDIA_ENUMERATE_DEVICES:
// Get the default devices for the request.
MediaCaptureDevicesDispatcher::GetInstance()->
GetDefaultDevices(microphone_requested_,
webcam_requested_,
&devices);
break;
}
}
LOG(ERROR) << "Accept";
callback_.Run(devices, scoped_ptr<content::MediaStreamUI>());
}
void MediaStreamDevicesController::Deny() {
callback_.Run(content::MediaStreamDevices(),
scoped_ptr<content::MediaStreamUI>());
}
} // namespace atom