35 lines
		
	
	
	
		
			707 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			35 lines
		
	
	
	
		
			707 B
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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namespace base {
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class Timer;
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} // namespace base
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namespace Ui {
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class DraggingScrollManager final {
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public:
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	DraggingScrollManager();
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	void checkDeltaScroll(int delta);
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	void checkDeltaScroll(const QPoint &point, int top, int bottom);
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	void cancel();
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	[[nodiscard]] rpl::producer<int> scrolls() const;
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private:
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	void scrollByTimer();
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	std::unique_ptr<base::Timer> _timer;
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	int _delta = 0;
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	rpl::event_stream<int> _scrolls;
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};
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} // namespace Ui
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