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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <LibCore/Object.h>
namespace Core {
class Timer final : public Object {
C_OBJECT(Timer);
public:
static NonnullRefPtr<Timer> create_repeating(int interval_ms, Function<void()>&& timeout_handler, Object* parent = nullptr)
{
auto timer = adopt_ref(*new Timer(interval_ms, move(timeout_handler), parent));
timer->stop();
return timer;
}
static NonnullRefPtr<Timer> create_single_shot(int interval_ms, Function<void()>&& timeout_handler, Object* parent = nullptr)
{
auto timer = adopt_ref(*new Timer(interval_ms, move(timeout_handler), parent));
timer->set_single_shot(true);
timer->stop();
return timer;
}
virtual ~Timer() override;
void start();
void start(int interval_ms);
void restart();
void restart(int interval_ms);
void stop();
bool is_active() const { return m_active; }
int interval() const { return m_interval_ms; }
void set_interval(int interval_ms)
{
if (m_interval_ms == interval_ms)
return;
m_interval_ms = interval_ms;
m_interval_dirty = true;
}
bool is_single_shot() const { return m_single_shot; }
void set_single_shot(bool single_shot) { m_single_shot = single_shot; }
Function<void()> on_timeout;
private:
explicit Timer(Object* parent = nullptr);
Timer(int interval_ms, Function<void()>&& timeout_handler, Object* parent = nullptr);
virtual void timer_event(TimerEvent&) override;
bool m_active { false };
bool m_single_shot { false };
bool m_interval_dirty { false };
int m_interval_ms { 0 };
};
}
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