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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_SYSTEM_MODEL_CLOCK_MODEL_H_
#define ASH_SYSTEM_MODEL_CLOCK_MODEL_H_
#include "base/i18n/time_formatting.h"
#include "base/observer_list.h"
#include "chromeos/ash/components/dbus/system_clock/system_clock_client.h"
#include "chromeos/ash/components/settings/timezone_settings.h"
namespace ash {
class ClockObserver;
// Model to notify system clock and related configuration change.
class ClockModel : public SystemClockClient::Observer,
public system::TimezoneSettings::Observer {
public:
ClockModel();
ClockModel(const ClockModel&) = delete;
ClockModel& operator=(const ClockModel&) = delete;
~ClockModel() override;
void AddObserver(ClockObserver* observer);
void RemoveObserver(ClockObserver* observer);
void SetUse24HourClock(bool use_24_hour);
// Return true if the session is logged in.
bool IsLoggedIn() const;
// Return true if Web UI date time settings or time dialog is available.
bool IsSettingsAvailable() const;
void ShowDateSettings();
void ShowPowerSettings();
void ShowSetTimeDialog();
// Force observers to refresh clock views e.g. system is resumed or timezone
// is changed.
void NotifyRefreshClock();
// SystemClockClient::Observer:
void SystemClockUpdated() override;
void SystemClockCanSetTimeChanged(bool can_set_time) override;
// ash::system::TimezoneSettings::Observer:
void TimezoneChanged(const icu::TimeZone& timezone) override;
base::HourClockType hour_clock_type() const { return hour_clock_type_; }
bool can_set_time() const { return can_set_time_; }
private:
void NotifyDateFormatChanged();
void NotifySystemClockTimeUpdated();
void NotifySystemClockCanSetTimeChanged(bool can_set_time);
// The type of clock hour display: 12 or 24 hour.
base::HourClockType hour_clock_type_ = base::k12HourClock;
// If system clock can be configured by user through SetTimeDialog.
bool can_set_time_ = false;
base::ObserverList<ClockObserver>::Unchecked observers_;
};
} // namespace ash
#endif // ASH_SYSTEM_MODEL_CLOCK_MODEL_H_
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