mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-04-30 19:47:17 +02:00
42 lines
960 B
C++
42 lines
960 B
C++
/*
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* Copyright (c) 2026, Jelle Raaijmakers <jelle@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGC/Ptr.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/PixelUnits.h>
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namespace Web {
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class AutoScrollHandler {
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public:
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AutoScrollHandler(HTML::Navigable&, DOM::Element& container);
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void visit_edges(JS::Cell::Visitor&) const;
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CSSPixelPoint process(CSSPixelPoint mouse_position);
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void perform_tick();
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bool is_active() const { return m_active; }
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static GC::Ptr<DOM::Element> find_scrollable_ancestor(Painting::Paintable const&);
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static GC::Ptr<Painting::PaintableBox> auto_scroll_paintable(DOM::Element&);
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private:
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void activate();
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void deactivate();
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GC::Ref<HTML::Navigable> m_navigable;
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GC::Ref<DOM::Element> m_container_element;
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CSSPixelPoint m_mouse_position;
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CSSPixelPoint m_fractional_delta;
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bool m_active { false };
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};
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}
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