95 lines
3.9 KiB
C++
95 lines
3.9 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE-CHROMIUM file.
|
|
|
|
#ifndef ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
|
|
#define ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
|
|
|
|
#include <string>
|
|
|
|
#include "base/memory/singleton.h"
|
|
#include "content/public/browser/media_observer.h"
|
|
#include "content/public/browser/media_stream_request.h"
|
|
#include "third_party/blink/public/common/mediastream/media_stream_request.h"
|
|
#include "third_party/blink/public/mojom/mediastream/media_stream.mojom.h"
|
|
|
|
namespace electron {
|
|
|
|
// This singleton is used to receive updates about media events from the content
|
|
// layer.
|
|
class MediaCaptureDevicesDispatcher : public content::MediaObserver {
|
|
public:
|
|
static MediaCaptureDevicesDispatcher* GetInstance();
|
|
|
|
// Methods for observers. Called on UI thread.
|
|
const blink::MediaStreamDevices& GetAudioCaptureDevices();
|
|
const blink::MediaStreamDevices& GetVideoCaptureDevices();
|
|
|
|
// Helper to get the default devices which can be used by the media request.
|
|
// Uses the first available devices if the default devices are not available.
|
|
// If the return list is empty, it means there is no available device on the
|
|
// OS.
|
|
// Called on the UI thread.
|
|
void GetDefaultDevices(
|
|
bool audio,
|
|
bool video,
|
|
blink::mojom::StreamDevices& devices); // NOLINT(runtime/references)
|
|
|
|
// Helpers for picking particular requested devices, identified by raw id.
|
|
// If the device requested is not available it will return NULL.
|
|
const blink::MediaStreamDevice* GetRequestedAudioDevice(
|
|
const std::string& requested_audio_device_id);
|
|
const blink::MediaStreamDevice* GetRequestedVideoDevice(
|
|
const std::string& requested_video_device_id);
|
|
|
|
// Returns the first available audio or video device, or NULL if no devices
|
|
// are available.
|
|
const blink::MediaStreamDevice* GetFirstAvailableAudioDevice();
|
|
const blink::MediaStreamDevice* GetFirstAvailableVideoDevice();
|
|
|
|
// Unittests that do not require actual device enumeration should call this
|
|
// API on the singleton. It is safe to call this multiple times on the
|
|
// singleton.
|
|
void DisableDeviceEnumerationForTesting();
|
|
|
|
// Overridden from content::MediaObserver:
|
|
void OnAudioCaptureDevicesChanged() override;
|
|
void OnVideoCaptureDevicesChanged() override;
|
|
void OnMediaRequestStateChanged(int render_process_id,
|
|
int render_view_id,
|
|
int page_request_id,
|
|
const GURL& security_origin,
|
|
blink::mojom::MediaStreamType stream_type,
|
|
content::MediaRequestState state) override;
|
|
void OnCreatingAudioStream(int render_process_id,
|
|
int render_view_id) override;
|
|
void OnSetCapturingLinkSecured(int render_process_id,
|
|
int render_frame_id,
|
|
int page_request_id,
|
|
blink::mojom::MediaStreamType stream_type,
|
|
bool is_secure) override;
|
|
|
|
// disable copy
|
|
MediaCaptureDevicesDispatcher(const MediaCaptureDevicesDispatcher&) = delete;
|
|
MediaCaptureDevicesDispatcher& operator=(
|
|
const MediaCaptureDevicesDispatcher&) = delete;
|
|
|
|
private:
|
|
friend struct base::DefaultSingletonTraits<MediaCaptureDevicesDispatcher>;
|
|
|
|
MediaCaptureDevicesDispatcher();
|
|
~MediaCaptureDevicesDispatcher() override;
|
|
|
|
// Only for testing, a list of cached audio capture devices.
|
|
blink::MediaStreamDevices test_audio_devices_;
|
|
|
|
// Only for testing, a list of cached video capture devices.
|
|
blink::MediaStreamDevices test_video_devices_;
|
|
|
|
// Flag used by unittests to disable device enumeration.
|
|
bool is_device_enumeration_disabled_ = false;
|
|
};
|
|
|
|
} // namespace electron
|
|
|
|
#endif // ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
|