mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-03 21:12:08 +02:00
b0effb3167
Element.cpp still handled the CSS invalidation fallout from dir and lang attribute changes directly. Move the descendant style dirtiness and :has(:dir/:lang) ancestor scheduling into CSS::Invalidation. Element continues to parse and store the DOM-facing attribute state. The new helper owns the inherited style invalidation behavior that follows from language and directionality changes.
46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
/*
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* Copyright (c) 2026-present, the Ladybird developers
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/CSS/Invalidation/LanguageInvalidator.h>
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#include <LibWeb/CSS/StyleScope.h>
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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#include <LibWeb/TraversalDecision.h>
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namespace Web::CSS::Invalidation {
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static void invalidate_descendants_affected_by_language_or_directionality(DOM::Element& element, bool is_directionality_change)
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{
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// dir and lang both inherit, so all descendants' :dir() / :lang() matches and direction-dependent layout/text
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// need to be recomputed.
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element.for_each_shadow_including_inclusive_descendant([is_directionality_change](auto& node) {
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if (auto* element = as_if<DOM::Element>(node)) {
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if (!is_directionality_change)
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element->invalidate_lang_value();
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element->set_needs_style_update(true);
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}
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return TraversalDecision::Continue;
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});
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// :has(:dir(...)) and :has(:lang(...)) on ancestors aren't keyed on any property the regular invalidation
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// plan tracks, so explicitly schedule the :has() ancestor walk here.
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element.for_each_style_scope_which_may_observe_the_node([&](CSS::StyleScope& scope) {
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scope.schedule_ancestors_style_invalidation_due_to_presence_of_has(element);
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});
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}
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void invalidate_style_after_language_change(DOM::Element& element)
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{
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invalidate_descendants_affected_by_language_or_directionality(element, false);
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}
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void invalidate_style_after_directionality_change(DOM::Element& element)
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{
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invalidate_descendants_affected_by_language_or_directionality(element, true);
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}
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}
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