ladybird/Libraries/LibWeb/CSS/StyleInvalidation.h
Sam Atkins cb14d574de LibWeb: Invalidate descendants for container-* property changes
Whenever an ancestor's container-name or container-type changes, it
affects the matching of any `@container` queries, and so can affect the
style of any descendant.
2026-05-13 11:05:31 +01:00

39 lines
1.6 KiB
C++

/*
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/Forward.h>
namespace Web::CSS {
struct RequiredInvalidationAfterStyleChange {
bool repaint : 1 { false };
bool rebuild_stacking_context_tree : 1 { false };
bool relayout : 1 { false };
bool rebuild_layout_tree : 1 { false };
bool rebuild_accumulated_visual_contexts : 1 { false };
// The element's change affects rule matching for descendants, without necessarily changing inherited style.
bool recompute_descendant_styles : 1 { false };
void operator|=(RequiredInvalidationAfterStyleChange const& other)
{
repaint |= other.repaint;
rebuild_stacking_context_tree |= other.rebuild_stacking_context_tree;
relayout |= other.relayout;
rebuild_layout_tree |= other.rebuild_layout_tree;
rebuild_accumulated_visual_contexts |= other.rebuild_accumulated_visual_contexts;
recompute_descendant_styles |= other.recompute_descendant_styles;
}
[[nodiscard]] bool is_none() const { return !repaint && !rebuild_stacking_context_tree && !relayout && !rebuild_layout_tree && !rebuild_accumulated_visual_contexts && !recompute_descendant_styles; }
[[nodiscard]] bool is_full() const { return repaint && rebuild_stacking_context_tree && relayout && rebuild_layout_tree; }
static RequiredInvalidationAfterStyleChange full() { return { true, true, true, true, false }; }
};
RequiredInvalidationAfterStyleChange compute_property_invalidation(CSS::PropertyID property_id, StyleValue const* old_value, StyleValue const* new_value);
}