cef/libcef/browser/media_capture_devices_dispa...

218 lines
7.3 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 file.
#include "libcef/browser/media_capture_devices_dispatcher.h"
#include "base/prefs/pref_registry_simple.h"
#include "base/prefs/pref_service.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/media_devices_monitor.h"
#include "content/public/common/media_stream_request.h"
using content::BrowserThread;
using content::MediaStreamDevices;
namespace {
const content::MediaStreamDevice* FindDefaultDeviceWithId(
const content::MediaStreamDevices& devices,
const std::string& device_id) {
if (devices.empty())
return NULL;
content::MediaStreamDevices::const_iterator iter = devices.begin();
for (; iter != devices.end(); ++iter) {
if (iter->id == device_id) {
return &(*iter);
}
}
return &(*devices.begin());
};
} // namespace
CefMediaCaptureDevicesDispatcher*
CefMediaCaptureDevicesDispatcher::GetInstance() {
return Singleton<CefMediaCaptureDevicesDispatcher>::get();
}
CefMediaCaptureDevicesDispatcher::CefMediaCaptureDevicesDispatcher()
: devices_enumerated_(false) {}
CefMediaCaptureDevicesDispatcher::~CefMediaCaptureDevicesDispatcher() {}
void CefMediaCaptureDevicesDispatcher::RegisterPrefs(
PrefRegistrySimple* registry) {
registry->RegisterStringPref(prefs::kDefaultAudioCaptureDevice,
std::string());
registry->RegisterStringPref(prefs::kDefaultVideoCaptureDevice,
std::string());
}
void CefMediaCaptureDevicesDispatcher::AddObserver(Observer* observer) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (!observers_.HasObserver(observer))
observers_.AddObserver(observer);
}
void CefMediaCaptureDevicesDispatcher::RemoveObserver(Observer* observer) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
observers_.RemoveObserver(observer);
}
const MediaStreamDevices&
CefMediaCaptureDevicesDispatcher::GetAudioCaptureDevices() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (!devices_enumerated_) {
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&content::EnsureMonitorCaptureDevices));
devices_enumerated_ = true;
}
return audio_devices_;
}
const MediaStreamDevices&
CefMediaCaptureDevicesDispatcher::GetVideoCaptureDevices() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (!devices_enumerated_) {
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&content::EnsureMonitorCaptureDevices));
devices_enumerated_ = true;
}
return video_devices_;
}
void CefMediaCaptureDevicesDispatcher::GetDefaultDevices(
PrefService* prefs,
bool audio,
bool video,
content::MediaStreamDevices* devices) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(audio || video);
std::string default_device;
if (audio) {
default_device = prefs->GetString(prefs::kDefaultAudioCaptureDevice);
GetRequestedDevice(default_device, true, false, devices);
}
if (video) {
default_device = prefs->GetString(prefs::kDefaultVideoCaptureDevice);
GetRequestedDevice(default_device, false, true, devices);
}
}
void CefMediaCaptureDevicesDispatcher::GetRequestedDevice(
const std::string& requested_device_id,
bool audio,
bool video,
content::MediaStreamDevices* devices) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(audio || video);
if (audio) {
const content::MediaStreamDevices& audio_devices = GetAudioCaptureDevices();
const content::MediaStreamDevice* const device =
FindDefaultDeviceWithId(audio_devices, requested_device_id);
if (device)
devices->push_back(*device);
}
if (video) {
const content::MediaStreamDevices& video_devices = GetVideoCaptureDevices();
const content::MediaStreamDevice* const device =
FindDefaultDeviceWithId(video_devices, requested_device_id);
if (device)
devices->push_back(*device);
}
}
void CefMediaCaptureDevicesDispatcher::OnCaptureDevicesOpened(
int render_process_id,
int render_view_id,
const content::MediaStreamDevices& devices,
const base::Closure& close_callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
}
void CefMediaCaptureDevicesDispatcher::OnCaptureDevicesClosed(
int render_process_id,
int render_view_id,
const content::MediaStreamDevices& devices) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
}
void CefMediaCaptureDevicesDispatcher::OnAudioCaptureDevicesChanged(
const content::MediaStreamDevices& devices) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(
&CefMediaCaptureDevicesDispatcher::UpdateAudioDevicesOnUIThread,
base::Unretained(this), devices));
}
void CefMediaCaptureDevicesDispatcher::OnVideoCaptureDevicesChanged(
const content::MediaStreamDevices& devices) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(
&CefMediaCaptureDevicesDispatcher::UpdateVideoDevicesOnUIThread,
base::Unretained(this), devices));
}
void CefMediaCaptureDevicesDispatcher::OnMediaRequestStateChanged(
int render_process_id,
int render_view_id,
const content::MediaStreamDevice& device,
content::MediaRequestState state) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(
&CefMediaCaptureDevicesDispatcher::UpdateMediaRequestStateOnUIThread,
base::Unretained(this), render_process_id, render_view_id, device,
state));
}
void CefMediaCaptureDevicesDispatcher::OnAudioStreamPlayingChanged(
int render_process_id, int render_view_id, int stream_id, bool playing) {
}
void CefMediaCaptureDevicesDispatcher::UpdateAudioDevicesOnUIThread(
const content::MediaStreamDevices& devices) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
devices_enumerated_ = true;
audio_devices_ = devices;
FOR_EACH_OBSERVER(Observer, observers_,
OnUpdateAudioDevices(audio_devices_));
}
void CefMediaCaptureDevicesDispatcher::UpdateVideoDevicesOnUIThread(
const content::MediaStreamDevices& devices){
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
devices_enumerated_ = true;
video_devices_ = devices;
FOR_EACH_OBSERVER(Observer, observers_,
OnUpdateVideoDevices(video_devices_));
}
void CefMediaCaptureDevicesDispatcher::UpdateMediaRequestStateOnUIThread(
int render_process_id,
int render_view_id,
const content::MediaStreamDevice& device,
content::MediaRequestState state) {
FOR_EACH_OBSERVER(Observer, observers_,
OnRequestUpdate(render_process_id,
render_view_id,
device,
state));
}