41 lines
		
	
	
	
		
			874 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			41 lines
		
	
	
	
		
			874 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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| 
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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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| 
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| #include "ui/widgets/scroll_area.h"
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| #include "base/qt_connection.h"
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| 
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| namespace Ui {
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| 
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| // This class is designed for seamless scrolling of
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| // on-demand augmented content.
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| class ContinuousScroll final : public ScrollArea {
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| public:
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| 	using ScrollArea::ScrollArea;
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| 
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| 	[[nodiscard]] rpl::producer<> addContentRequests() const;
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| 	void contentAdded();
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| 
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| 	void setTrackingContent(bool value);
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| 
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| protected:
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| 	void wheelEvent(QWheelEvent *e) override;
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| 
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| private:
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| 	void reconnect();
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| 
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| 	base::qt_connection _connection;
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| 
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| 	bool _contentAdded = false;
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| 	bool _tracking = false;
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| 
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| 	rpl::event_stream<> _addContentRequests;
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| 
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| };
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| 
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| } // namespace Ui
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