/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org

Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.

Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once

#include "ui/toast/toast.h"
#include "core/single_timer.h"

namespace Ui {
namespace Toast {
namespace internal {

class Widget;
class Manager : public QObject {
	Q_OBJECT

public:
	Manager(const Manager &other) = delete;
	Manager &operator=(const Manager &other) = delete;

	static Manager *instance(QWidget *parent);

	void addToast(std_::unique_ptr<Instance> &&toast);

	~Manager();

private slots:
	void onHideTimeout();
	void onToastWidgetDestroyed(QObject *widget);
	void onToastWidgetParentResized();

private:
	Manager(QWidget *parent);
	void startNextHideTimer();

	SingleTimer _hideTimer;
	TimeMs _nextHide = 0;

	QMultiMap<TimeMs, Instance*> _toastByHideTime;
	QMap<Widget*, Instance*> _toastByWidget;
	QList<Instance*> _toasts;

};

} // namespace internal
} // namespace Toast
} // namespace Ui