849d528220
Split StyleCache's rule matching data from its invalidation metadata. Allow callers to build either payload independently. Style invalidation queries no longer force a full rule cache rebuild, and rule matching no longer builds invalidation metadata as a side effect. Previously, callers often treated an absent rule cache as proof that no style invalidation metadata existed. That made some invalidation paths do nothing until something else had populated the rule cache first. Build invalidation data before reading it instead, so these paths use the metadata whenever stylesheet rules require it. Rebaseline style invalidation counter expectations for the new lazy build points. Flush setup style work in the structural :has() feature filter test before measuring each mutation, so the recomputation counters describe the mutation itself instead of leftover setup work.
81 lines
3.1 KiB
C++
81 lines
3.1 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/CSSKeyframesRule.h>
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#include <LibWeb/CSS/CSSStyleSheet.h>
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#include <LibWeb/CSS/Invalidation/MediaQueryInvalidator.h>
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#include <LibWeb/CSS/StyleScope.h>
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#include <LibWeb/CSS/StyleSheetInvalidation.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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#include <LibWeb/DOM/StyleInvalidationReason.h>
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namespace Web::CSS::Invalidation {
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struct MediaQueryRuleInvalidation {
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StyleSheetInvalidationSet style_sheet_invalidation_set;
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Vector<FlyString> keyframes_animation_names;
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void add_rule(CSSRule const& rule)
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{
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extend_style_sheet_invalidation_set_with_rule(style_sheet_invalidation_set, rule);
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if (auto const* keyframes_rule = as_if<CSSKeyframesRule>(rule))
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keyframes_animation_names.append(keyframes_rule->name());
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}
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};
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static void invalidate_style_after_media_rule_changes(DOM::Node& root, MediaQueryRuleInvalidation const& invalidation)
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{
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auto style_sheet_invalidation_set = invalidation.style_sheet_invalidation_set;
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add_shadow_root_stylesheet_effects_for_broad_invalidation(
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root,
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style_sheet_invalidation_set,
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style_sheet_invalidation_set.invalidation_set.needs_invalidate_whole_subtree());
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invalidate_root_for_style_sheet_change(root, style_sheet_invalidation_set, DOM::StyleInvalidationReason::MediaQueryChangedMatchState);
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for (auto const& animation_name : invalidation.keyframes_animation_names)
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invalidate_root_for_keyframes_rule(root, animation_name);
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}
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void evaluate_media_rules_and_invalidate_style(DOM::Document& document)
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{
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++document.style_invalidation_counters().media_rule_evaluations;
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bool document_media_queries_changed_match_state = false;
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MediaQueryRuleInvalidation document_invalidation;
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document.style_scope().for_each_active_css_style_sheet([&](CSS::CSSStyleSheet& style_sheet) {
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if (style_sheet.evaluate_media_queries(document, [&](CSSRule const& changed_rule) {
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document_invalidation.add_rule(changed_rule);
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}))
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document_media_queries_changed_match_state = true;
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});
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document.for_each_shadow_root([&](auto& shadow_root) {
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bool shadow_root_media_queries_changed_match_state = false;
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MediaQueryRuleInvalidation shadow_root_invalidation;
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shadow_root.style_scope().for_each_active_css_style_sheet([&](CSS::CSSStyleSheet& style_sheet) {
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if (style_sheet.evaluate_media_queries(document, [&](CSSRule const& changed_rule) {
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shadow_root_invalidation.add_rule(changed_rule);
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}))
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shadow_root_media_queries_changed_match_state = true;
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});
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if (!shadow_root_media_queries_changed_match_state)
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return;
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shadow_root.style_scope().invalidate_style_cache();
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invalidate_style_after_media_rule_changes(shadow_root, shadow_root_invalidation);
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});
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if (document_media_queries_changed_match_state) {
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document.style_scope().invalidate_style_cache();
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invalidate_style_after_media_rule_changes(document, document_invalidation);
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}
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}
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}
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