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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/chromeos/settings/system_settings_provider.h"
#include "base/string16.h"
#include "base/time.h"
#include "base/values.h"
#include "chrome/browser/chromeos/login/user_manager.h"
#include "chrome/browser/chromeos/settings/cros_settings.h"
#include "chrome/browser/chromeos/settings/cros_settings_names.h"
#include "grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
namespace chromeos {
SystemSettingsProvider::SystemSettingsProvider(
const NotifyObserversCallback& notify_cb)
: CrosSettingsProvider(notify_cb) {
system::TimezoneSettings *timezone_settings =
system::TimezoneSettings::GetInstance();
timezone_settings->AddObserver(this);
timezone_value_.reset(base::Value::CreateStringValue(
timezone_settings->GetCurrentTimezoneID()));
}
SystemSettingsProvider::~SystemSettingsProvider() {
system::TimezoneSettings::GetInstance()->RemoveObserver(this);
}
void SystemSettingsProvider::DoSet(const std::string& path,
const base::Value& in_value) {
// Non-guest users can change the time zone.
if (UserManager::Get()->IsLoggedInAsGuest())
return;
if (path == kSystemTimezone) {
string16 timezone_id;
if (!in_value.GetAsString(&timezone_id))
return;
// This will call TimezoneChanged.
system::TimezoneSettings::GetInstance()->SetTimezoneFromID(timezone_id);
}
}
const base::Value* SystemSettingsProvider::Get(const std::string& path) const {
if (path == kSystemTimezone)
return timezone_value_.get();
return NULL;
}
// The timezone is always trusted.
CrosSettingsProvider::TrustedStatus
SystemSettingsProvider::PrepareTrustedValues(const base::Closure& cb) {
return TRUSTED;
}
bool SystemSettingsProvider::HandlesSetting(const std::string& path) const {
return path == kSystemTimezone;
}
void SystemSettingsProvider::TimezoneChanged(const icu::TimeZone& timezone) {
// Fires system setting change notification.
timezone_value_.reset(base::Value::CreateStringValue(
system::TimezoneSettings::GetTimezoneID(timezone)));
NotifyObservers(kSystemTimezone);
}
} // namespace chromeos
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