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LibWeb: Schedule input event processing on HTML event loop

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Our existing coalescing mechanism for input events didn't prevent
multiple mousemove/mousewheel events from being processed between paint
cycles. Since handling these events can trigger style & layout updates
solely for hit-testing purposes, we might end up doing work that won't
be observable by a user and could be avoided by shceduling input events
processing to happen right before painting the next frame.
This commit is contained in:
Aliaksandr Kalenik 2025-02-14 23:25:12 +01:00 • committed by Andreas Kling
parent 9072a7caef
commit d3c481f71a
Notes: github-actions[bot] 2025-02-15 20:10:12 +00:00
10 changed files with 90 additions and 70 deletions
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Libraries/LibWeb/Page/Page.h
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@ -323,6 +323,8 @@ public:
virtual void paint_next_frame() = 0;
virtual void process_screenshot_requests() = 0;
virtual void paint(DevicePixelRect const&, Painting::BackingStore&, PaintOptions = {}) = 0;
virtual Queue<QueuedInputEvent>& input_event_queue() = 0;
virtual void report_finished_handling_input_event(u64 page_id, EventResult event_was_handled) = 0;
virtual void page_did_change_title(ByteString const&) { }
virtual void page_did_change_url(URL::URL const&) { }
virtual void page_did_request_refresh() { }