lib_ui/ui/dragging_scroll_manager.h
2023-11-28 02:05:16 +03:00

34 lines
706 B
C++

// This file is part of Desktop App Toolkit,
// a set of libraries for developing nice desktop applications.
//
// For license and copyright information please follow this link:
// https://github.com/desktop-app/legal/blob/master/LEGAL
//
#pragma once
namespace base {
class Timer;
} // namespace base
namespace Ui {
class DraggingScrollManager final {
public:
DraggingScrollManager();
void checkDeltaScroll(int delta);
void checkDeltaScroll(const QPoint &point, int top, int bottom);
void cancel();
[[nodiscard]] rpl::producer<int> scrolls() const;
private:
void scrollByTimer();
std::unique_ptr<base::Timer> _timer;
int _delta = 0;
rpl::event_stream<int> _scrolls;
};
} // namespace Ui