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LibWeb: Enable middle mouse autoscroll on middle mouse clicks

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We previously supported autoscroll while the middle mouse button was
pressed. We now also support clicking the middle mouse button in-place
to begin autoscroll. Pressing any mouse button or the escape key will
exit this mode.
This commit is contained in:
Timothy Flynn
2026-04-15 11:42:02 -04:00
committed by Tim Flynn
parent 778402640a
commit 331815f327
Notes: github-actions[bot] 2026-04-15 17:38:48 +00:00 
Author: https://github.com/trflynn89
Commit: https://github.com/LadybirdBrowser/ladybird/commit/331815f3277
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/8928
3 changed files with 23 additions and 14 deletions
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6
Libraries/LibWeb/Page/MiddleButtonScrollHandler.h
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@@ -22,18 +22,18 @@ public:
static GC::Ptr<DOM::Element> find_scrollable_ancestor(DOM::Document&, Painting::Paintable&);
void update_mouse_position(CSSPixelPoint);
void update_mouse_position(CSSPixelPoint position) { m_mouse_position = position; }
void perform_tick();
CSSPixelPoint origin() const { return m_origin; }
bool mouse_has_moved() const { return m_mouse_has_moved; }
bool mouse_has_moved_beyond_dead_zone() const { return m_mouse_has_moved_beyond_dead_zone; }
private:
GC::Ref<DOM::Element> m_container_element;
CSSPixelPoint m_origin;
CSSPixelPoint m_mouse_position;
CSSPixelPoint m_fractional_delta;
bool m_mouse_has_moved { false };
bool m_mouse_has_moved_beyond_dead_zone { false };
};
}