tdesktop/Telegram/SourceFiles/window/window_theme_warning.h

/*
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) 2014-2016 John Preston, https://desktop.telegram.org
*/
#pragma once

namespace Ui {
class RoundButton;
} // namespace Ui

namespace Window {
namespace Theme {

class WarningWidget : public TWidget {
public:
	WarningWidget(QWidget *parent);

	void setHiddenCallback(base::lambda<void()> &&callback) {
		_hiddenCallback = std_::move(callback);
	}

	void showAnimated();
	void hideAnimated();

protected:
	void keyPressEvent(QKeyEvent *e) override;
	void paintEvent(QPaintEvent *e) override;
	void resizeEvent(QResizeEvent *e) override;

private:
	void setSecondsLeft(int secondsLeft);
	void startAnimation(bool hiding);
	void updateText();
	void handleTimer();

	bool _hiding = false;
	Animation _animation;
	QPixmap _cache;
	QRect _inner, _outer;

	SingleTimer _timer;
	TimeMs _started = 0;
	int _secondsLeft = 0;
	QString _text;

	object_ptr<Ui::RoundButton> _keepChanges;
	object_ptr<Ui::RoundButton> _revert;

	base::lambda<void()> _hiddenCallback;

};

} // namespace Theme
} // namespace Window