mirror of
https://github.com/LadybirdBrowser/ladybird
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3012c0fe72
Replace per-frame heap-allocated RefCounted ScrollFrame objects with a single contiguous Vector<ScrollFrame> inside ScrollState. All frames for a viewport are now stored in one allocation, using type-safe ScrollFrameIndex instead of RefPtr pointers. This reduces allocation churn, improves cache locality, and moves parent-chain traversal (cumulative offset, nearest scrolling ancestor) into ScrollState — similar to how visual context nodes were recently consolidated into AccumulatedVisualContextTree.
22 lines
497 B
C++
22 lines
497 B
C++
/*
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* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGC/Heap.h>
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#include <LibGC/WeakInlines.h>
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#include <LibWeb/Painting/PaintableBox.h>
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#include <LibWeb/Painting/ScrollFrame.h>
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namespace Web::Painting {
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ScrollFrame::ScrollFrame(PaintableBox const& paintable_box, bool sticky, ScrollFrameIndex parent_index)
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: m_paintable_box(paintable_box)
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, m_sticky(sticky)
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, m_parent_index(parent_index)
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{
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}
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}
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