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// Copyright 2014 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/chromeos/set_time_ui.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/build_time.h"
#include "base/values.h"
#include "chrome/browser/chromeos/settings/cros_settings.h"
#include "chrome/browser/chromeos/system/timezone_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "chromeos/dbus/dbus_thread_manager.h"
#include "chromeos/dbus/system_clock_client.h"
#include "chromeos/login/login_state.h"
#include "chromeos/settings/timezone_settings.h"
#include "content/public/browser/web_ui.h"
#include "content/public/browser/web_ui_data_source.h"
#include "content/public/browser/web_ui_message_handler.h"
#include "grit/browser_resources.h"
namespace chromeos {
namespace {
class SetTimeMessageHandler : public content::WebUIMessageHandler,
public chromeos::SystemClockClient::Observer,
public system::TimezoneSettings::Observer {
public:
SetTimeMessageHandler() {
system::TimezoneSettings::GetInstance()->AddObserver(this);
chromeos::DBusThreadManager::Get()->GetSystemClockClient()->AddObserver(
this);
}
virtual ~SetTimeMessageHandler() {
system::TimezoneSettings::GetInstance()->RemoveObserver(this);
chromeos::DBusThreadManager::Get()->GetSystemClockClient()->RemoveObserver(
this);
}
// WebUIMessageHandler:
virtual void RegisterMessages() override {
web_ui()->RegisterMessageCallback(
"setTimeInSeconds",
base::Bind(&SetTimeMessageHandler::OnSetTime, base::Unretained(this)));
web_ui()->RegisterMessageCallback(
"setTimezone",
base::Bind(&SetTimeMessageHandler::OnSetTimezone,
base::Unretained(this)));
}
private:
// system::SystemClockClient::Observer:
virtual void SystemClockUpdated() override {
web_ui()->CallJavascriptFunction("settime.TimeSetter.updateTime");
}
// system::TimezoneSettings::Observer:
virtual void TimezoneChanged(const icu::TimeZone& timezone) override {
base::StringValue timezone_id(
system::TimezoneSettings::GetTimezoneID(timezone));
web_ui()->CallJavascriptFunction("settime.TimeSetter.setTimezone",
timezone_id);
}
// Handler for Javascript call to set the system clock when the user sets a
// new time. Expects the time as the number of seconds since the Unix
// epoch, treated as a double.
void OnSetTime(const base::ListValue* args) {
double seconds;
if (!args->GetDouble(0, &seconds)) {
NOTREACHED();
return;
}
chromeos::DBusThreadManager::Get()->GetSystemClockClient()->SetTime(
static_cast<int64>(seconds));
}
// Handler for Javascript call to change the system time zone when the user
// selects a new time zone. Expects the time zone ID as a string, as it
// appears in the time zone option values.
void OnSetTimezone(const base::ListValue* args) {
std::string timezone_id;
if (!args->GetString(0, &timezone_id)) {
NOTREACHED();
return;
}
CrosSettings::Get()->SetString(kSystemTimezone, timezone_id);
}
DISALLOW_COPY_AND_ASSIGN(SetTimeMessageHandler);
};
} // namespace
SetTimeUI::SetTimeUI(content::WebUI* web_ui) : WebDialogUI(web_ui) {
web_ui->AddMessageHandler(new SetTimeMessageHandler());
// Set up the chrome://set-time source.
content::WebUIDataSource* source =
content::WebUIDataSource::Create(chrome::kChromeUISetTimeHost);
source->AddLocalizedString("setTimeTitle", IDS_SET_TIME_TITLE);
source->AddLocalizedString("prompt", IDS_SET_TIME_PROMPT);
source->AddLocalizedString("doneButton", IDS_SET_TIME_BUTTON_CLOSE);
source->AddLocalizedString("timezone",
IDS_OPTIONS_SETTINGS_TIMEZONE_DESCRIPTION);
source->AddLocalizedString("dateLabel", IDS_SET_TIME_DATE_LABEL);
source->AddLocalizedString("timeLabel", IDS_SET_TIME_TIME_LABEL);
base::DictionaryValue values;
values.Set("timezoneList", chromeos::system::GetTimezoneList().release());
// If we are not logged in, we need to show the time zone dropdown.
// Otherwise, we can leave |currentTimezoneId| blank.
std::string current_timezone_id;
if (!LoginState::Get()->IsUserLoggedIn())
CrosSettings::Get()->GetString(kSystemTimezone, ¤t_timezone_id);
values.SetString("currentTimezoneId", current_timezone_id);
values.SetDouble("buildTime", base::GetBuildTime().ToJsTime());
source->AddLocalizedStrings(values);
source->SetJsonPath("strings.js");
source->AddResourcePath("set_time.css", IDR_SET_TIME_CSS);
source->AddResourcePath("set_time.js", IDR_SET_TIME_JS);
source->SetDefaultResource(IDR_SET_TIME_HTML);
content::WebUIDataSource::Add(Profile::FromWebUI(web_ui), source);
}
SetTimeUI::~SetTimeUI() {
}
} // namespace chromeos
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