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07ff75bbec
Instead, collect a list of all the elements with content-visibility:auto after layout. This way we can skip the tree traversal when updating the rendering. This was previously eating up ~300 µs of the 60fps frame budget on our GitHub repo pages (and even more on large pages).
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
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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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#pragma once
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#include <LibWeb/Painting/PaintableBox.h>
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#include <LibWeb/Painting/ScrollState.h>
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namespace Web::Painting {
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class ViewportPaintable final : public PaintableWithLines {
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GC_CELL(ViewportPaintable, PaintableWithLines);
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GC_DECLARE_ALLOCATOR(ViewportPaintable);
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public:
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static GC::Ref<ViewportPaintable> create(Layout::Viewport const&);
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virtual ~ViewportPaintable() override;
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void paint_all_phases(PaintContext&);
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void build_stacking_context_tree_if_needed();
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void assign_scroll_frames();
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void refresh_scroll_state();
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HashMap<GC::Ptr<PaintableBox const>, RefPtr<ClipFrame>> clip_state;
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void assign_clip_frames();
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void resolve_paint_only_properties();
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GC::Ptr<Selection::Selection> selection() const;
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void recompute_selection_states(DOM::Range&);
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bool handle_mousewheel(Badge<EventHandler>, CSSPixelPoint, unsigned, unsigned, int wheel_delta_x, int wheel_delta_y) override;
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void set_needs_to_refresh_scroll_state(bool value) { m_needs_to_refresh_scroll_state = value; }
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ScrollState const& scroll_state() const { return m_scroll_state; }
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void set_paintable_boxes_with_auto_content_visibility(Vector<GC::Ref<PaintableBox>> paintable_boxes) { m_paintable_boxes_with_auto_content_visibility = move(paintable_boxes); }
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ReadonlySpan<GC::Ref<PaintableBox>> paintable_boxes_with_auto_content_visibility() const { return m_paintable_boxes_with_auto_content_visibility; }
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private:
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void build_stacking_context_tree();
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explicit ViewportPaintable(Layout::Viewport const&);
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virtual void visit_edges(Visitor&) override;
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ScrollState m_scroll_state;
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bool m_needs_to_refresh_scroll_state { true };
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Vector<GC::Ref<PaintableBox>> m_paintable_boxes_with_auto_content_visibility;
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};
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}
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