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// 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 "chrome/browser/ui/webui/options/media_devices_selection_handler.h"
#include "base/bind.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/pref_names.h"
namespace {
const char kAudio[] = "mic";
const char kVideo[] = "camera";
} // namespace
namespace options {
MediaDevicesSelectionHandler::MediaDevicesSelectionHandler() {}
MediaDevicesSelectionHandler::~MediaDevicesSelectionHandler() {
MediaCaptureDevicesDispatcher::GetInstance()->RemoveObserver(this);
}
void MediaDevicesSelectionHandler::GetLocalizedValues(
base::DictionaryValue* values) {
DCHECK(values);
static OptionsStringResource resources[] = {
{ "mediaSelectMicLabel", IDS_MEDIA_SELECTED_MIC_LABEL },
{ "mediaSelectCameraLabel", IDS_MEDIA_SELECTED_CAMERA_LABEL },
};
RegisterStrings(values, resources, arraysize(resources));
}
void MediaDevicesSelectionHandler::InitializePage() {
// Register to the device observer list to get up-to-date device lists.
MediaCaptureDevicesDispatcher::GetInstance()->AddObserver(this);
// Update the device selection menus.
UpdateDevicesMenuForType(AUDIO);
UpdateDevicesMenuForType(VIDEO);
}
void MediaDevicesSelectionHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback("setDefaultCaptureDevice",
base::Bind(&MediaDevicesSelectionHandler::SetDefaultCaptureDevice,
base::Unretained(this)));
}
void MediaDevicesSelectionHandler::OnUpdateAudioDevices(
const content::MediaStreamDevices& devices) {
UpdateDevicesMenu(AUDIO, devices);
}
void MediaDevicesSelectionHandler::OnUpdateVideoDevices(
const content::MediaStreamDevices& devices) {
UpdateDevicesMenu(VIDEO, devices);
}
void MediaDevicesSelectionHandler::SetDefaultCaptureDevice(
const base::ListValue* args) {
DCHECK_EQ(2U, args->GetSize());
std::string type, device;
if (!(args->GetString(0, &type) && args->GetString(1, &device))) {
NOTREACHED();
return;
}
DCHECK(!type.empty());
DCHECK(!device.empty());
Profile* profile = Profile::FromWebUI(web_ui());
PrefService* prefs = profile->GetPrefs();
if (type == kAudio)
prefs->SetString(prefs::kDefaultAudioCaptureDevice, device);
else if (type == kVideo)
prefs->SetString(prefs::kDefaultVideoCaptureDevice, device);
else
NOTREACHED();
}
void MediaDevicesSelectionHandler::UpdateDevicesMenu(
DeviceType type, const content::MediaStreamDevices& devices) {
// Get the default device unique id from prefs.
Profile* profile = Profile::FromWebUI(web_ui());
PrefService* prefs = profile->GetPrefs();
std::string default_device;
std::string device_type;
switch (type) {
case AUDIO:
default_device = prefs->GetString(prefs::kDefaultAudioCaptureDevice);
device_type = kAudio;
break;
case VIDEO:
default_device = prefs->GetString(prefs::kDefaultVideoCaptureDevice);
device_type = kVideo;
break;
}
// Build the list of devices to send to JS.
std::string default_id;
base::ListValue device_list;
for (size_t i = 0; i < devices.size(); ++i) {
base::DictionaryValue* entry = new base::DictionaryValue();
entry->SetString("name", devices[i].name);
entry->SetString("id", devices[i].id);
device_list.Append(entry);
if (devices[i].id == default_device)
default_id = default_device;
}
// Use the first device as the default device if the preferred default device
// does not exist in the OS.
if (!devices.empty() && default_id.empty())
default_id = devices[0].id;
base::StringValue default_value(default_id);
base::StringValue type_value(device_type);
web_ui()->CallJavascriptFunction("ContentSettings.updateDevicesMenu",
type_value,
device_list,
default_value);
}
void MediaDevicesSelectionHandler::UpdateDevicesMenuForType(DeviceType type) {
content::MediaStreamDevices devices;
switch (type) {
case AUDIO:
devices = MediaCaptureDevicesDispatcher::GetInstance()->
GetAudioCaptureDevices();
break;
case VIDEO:
devices = MediaCaptureDevicesDispatcher::GetInstance()->
GetVideoCaptureDevices();
break;
}
UpdateDevicesMenu(type, devices);
}
} // namespace options
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