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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/system/system_api.h"
#include "base/json/json_writer.h"
#include "base/values.h"
#include "chrome/browser/extensions/extension_event_router.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/common/pref_names.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* 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 kUpdatingState[] = "Updating";
const char kNeedRestartState[] = "NeedRestart";
// Event names.
const char kOnBrightnessChanged[] = "systemPrivate.onBrightnessChanged";
const char kOnVolumeChanged[] = "systemPrivate.onVolumeChanged";
const char kOnScreenUnlocked[] = "systemPrivate.onScreenUnlocked";
const char kOnWokeUp[] = "systemPrivate.onWokeUp";
// Dispatches an extension event with |args|
void DispatchEvent(const std::string& event_name, const ListValue& args) {
Profile* profile = ProfileManager::GetDefaultProfile();
if (!profile)
return;
ExtensionEventRouter* extension_event_router =
profile->GetExtensionEventRouter();
if (!extension_event_router)
return;
std::string json_args;
base::JSONWriter::Write(&args, &json_args);
extension_event_router->DispatchEventToRenderers(
event_name, json_args, NULL, GURL(), extensions::EventFilteringInfo());
}
} // namespace
namespace extensions {
bool GetIncognitoModeAvailabilityFunction::RunImpl() {
PrefService* prefs = profile_->GetPrefs();
int value = prefs->GetInteger(prefs::kIncognitoModeAvailability);
EXTENSION_FUNCTION_VALIDATE(
value >= 0 &&
value < static_cast<int>(arraysize(kIncognitoModeAvailabilityStrings)));
result_.reset(
Value::CreateStringValue(kIncognitoModeAvailabilityStrings[value]));
return true;
}
bool GetUpdateStatusFunction::RunImpl() {
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:
state = kNotAvailableState;
break;
}
#else
if (UpgradeDetector::GetInstance()->notify_upgrade()) {
state = kNeedRestartState;
download_progress = 1;
} else {
state = kNotAvailableState;
}
#endif
DictionaryValue* dict = new DictionaryValue();
dict->SetString(kStateKey, state);
dict->SetDouble(kDownloadProgressKey, download_progress);
result_.reset(dict);
return true;
}
void DispatchVolumeChangedEvent(double volume, bool is_volume_muted) {
ListValue args;
DictionaryValue* dict = new DictionaryValue();
dict->SetDouble(kVolumeKey, volume);
dict->SetBoolean(kIsVolumeMutedKey, is_volume_muted);
args.Append(dict);
DispatchEvent(kOnVolumeChanged, args);
}
void DispatchBrightnessChangedEvent(int brightness, bool user_initiated) {
ListValue args;
DictionaryValue* dict = new DictionaryValue();
dict->SetInteger(kBrightnessKey, brightness);
dict->SetBoolean(kUserInitiatedKey, user_initiated);
args.Append(dict);
DispatchEvent(kOnBrightnessChanged, args);
}
void DispatchScreenUnlockedEvent() {
ListValue args;
DispatchEvent(kOnScreenUnlocked, args);
}
void DispatchWokeUpEvent() {
ListValue args;
DispatchEvent(kOnWokeUp, args);
}
} // namespace extensions
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