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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/extensions/api/system_private/system_private_api.h"
#include <utility>
#include "base/macros.h"
#include "base/values.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/extensions/event_router_forwarder.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/extensions/api/system_private.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_service.h"
#include "google_apis/google_api_keys.h"
#if defined(OS_CHROMEOS)
#include "chromeos/dbus/dbus_thread_manager.h"
#include "chromeos/dbus/update_engine_client.h"
#else
#include "chrome/browser/upgrade_detector.h"
#endif
namespace {
// Maps prefs::kIncognitoModeAvailability values (0 = enabled, ...)
// to strings exposed to extensions.
const char* const kIncognitoModeAvailabilityStrings[] = {
"enabled",
"disabled",
"forced"
};
// Property keys.
const char kBrightnessKey[] = "brightness";
const char kDownloadProgressKey[] = "downloadProgress";
const char kIsVolumeMutedKey[] = "isVolumeMuted";
const char kStateKey[] = "state";
const char kUserInitiatedKey[] = "userInitiated";
const char kVolumeKey[] = "volume";
// System update states.
const char kNotAvailableState[] = "NotAvailable";
const char kNeedRestartState[] = "NeedRestart";
#if defined(OS_CHROMEOS)
const char kUpdatingState[] = "Updating";
#endif // defined(OS_CHROMEOS)
// Dispatches an extension event with |argument|
void DispatchEvent(extensions::events::HistogramValue histogram_value,
const std::string& event_name,
base::Value* argument) {
scoped_ptr<base::ListValue> list_args(new base::ListValue());
if (argument) {
list_args->Append(argument);
}
g_browser_process->extension_event_router_forwarder()
->BroadcastEventToRenderers(histogram_value, event_name,
std::move(list_args), GURL());
}
} // namespace
namespace extensions {
namespace system_private = api::system_private;
bool SystemPrivateGetIncognitoModeAvailabilityFunction::RunSync() {
PrefService* prefs = GetProfile()->GetPrefs();
int value = prefs->GetInteger(prefs::kIncognitoModeAvailability);
EXTENSION_FUNCTION_VALIDATE(
value >= 0 &&
value < static_cast<int>(arraysize(kIncognitoModeAvailabilityStrings)));
SetResult(new base::StringValue(kIncognitoModeAvailabilityStrings[value]));
return true;
}
bool SystemPrivateGetUpdateStatusFunction::RunSync() {
std::string state;
double download_progress = 0;
#if defined(OS_CHROMEOS)
// With UpdateEngineClient, we can provide more detailed information about
// system updates on ChromeOS.
const chromeos::UpdateEngineClient::Status status =
chromeos::DBusThreadManager::Get()->GetUpdateEngineClient()->
GetLastStatus();
// |download_progress| is set to 1 after download finishes
// (i.e. verify, finalize and need-reboot phase) to indicate the progress
// even though |status.download_progress| is 0 in these phases.
switch (status.status) {
case chromeos::UpdateEngineClient::UPDATE_STATUS_ERROR:
state = kNotAvailableState;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_IDLE:
state = kNotAvailableState;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE:
state = kNotAvailableState;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATE_AVAILABLE:
state = kUpdatingState;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_DOWNLOADING:
state = kUpdatingState;
download_progress = status.download_progress;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_VERIFYING:
state = kUpdatingState;
download_progress = 1;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_FINALIZING:
state = kUpdatingState;
download_progress = 1;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT:
state = kNeedRestartState;
download_progress = 1;
break;
case chromeos::UpdateEngineClient::UPDATE_STATUS_REPORTING_ERROR_EVENT:
case chromeos::UpdateEngineClient::UPDATE_STATUS_ATTEMPTING_ROLLBACK:
state = kNotAvailableState;
break;
}
#else
if (UpgradeDetector::GetInstance()->notify_upgrade()) {
state = kNeedRestartState;
download_progress = 1;
} else {
state = kNotAvailableState;
}
#endif
base::DictionaryValue* dict = new base::DictionaryValue();
dict->SetString(kStateKey, state);
dict->SetDouble(kDownloadProgressKey, download_progress);
SetResult(dict);
return true;
}
bool SystemPrivateGetApiKeyFunction::RunSync() {
SetResult(new base::StringValue(google_apis::GetAPIKey()));
return true;
}
void DispatchVolumeChangedEvent(double volume, bool is_volume_muted) {
base::DictionaryValue* dict = new base::DictionaryValue();
dict->SetDouble(kVolumeKey, volume);
dict->SetBoolean(kIsVolumeMutedKey, is_volume_muted);
DispatchEvent(extensions::events::SYSTEM_PRIVATE_ON_VOLUME_CHANGED,
system_private::OnVolumeChanged::kEventName, dict);
}
void DispatchBrightnessChangedEvent(int brightness, bool user_initiated) {
base::DictionaryValue* dict = new base::DictionaryValue();
dict->SetInteger(kBrightnessKey, brightness);
dict->SetBoolean(kUserInitiatedKey, user_initiated);
DispatchEvent(extensions::events::SYSTEM_PRIVATE_ON_BRIGHTNESS_CHANGED,
system_private::OnBrightnessChanged::kEventName, dict);
}
void DispatchScreenUnlockedEvent() {
DispatchEvent(extensions::events::SYSTEM_PRIVATE_ON_SCREEN_UNLOCKED,
system_private::OnScreenUnlocked::kEventName, NULL);
}
void DispatchWokeUpEvent() {
DispatchEvent(extensions::events::SYSTEM_PRIVATE_ON_WOKE_UP,
system_private::OnWokeUp::kEventName, NULL);
}
} // namespace extensions
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