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https://github.com/LadybirdBrowser/ladybird.git
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9abdc9fb62
Use an empty namespace table when parsing a nested rule through a grouping rule that no longer has a parent stylesheet, and skip owner invalidation in that detached case. Add a crash test covering selectorText mutation and nested insertRule after a top-level style rule has been deleted from its constructable stylesheet.
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/*
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* Copyright (c) 2021-2024, Sam Atkins <sam@ladybird.org>
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* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/Bindings/CSSGroupingRule.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/Bindings/MainThreadVM.h>
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#include <LibWeb/CSS/CSSGroupingRule.h>
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#include <LibWeb/CSS/CSSRuleList.h>
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#include <LibWeb/CSS/CSSStyleSheet.h>
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#include <LibWeb/HTML/Window.h>
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namespace Web::CSS {
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CSSGroupingRule::CSSGroupingRule(JS::Realm& realm, CSSRuleList& rules, Type type)
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: CSSRule(realm, type)
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, m_rules(rules)
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{
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m_rules->set_owner_rule(*this);
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for (auto& rule : *m_rules)
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rule->set_parent_rule(this);
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}
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void CSSGroupingRule::initialize(JS::Realm& realm)
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{
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WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSGroupingRule);
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Base::initialize(realm);
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}
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void CSSGroupingRule::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_rules);
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}
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void CSSGroupingRule::clear_caches()
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{
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Base::clear_caches();
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for (auto& rule : *m_rules)
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rule->clear_caches();
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}
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// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-insertrule
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WebIDL::ExceptionOr<u32> CSSGroupingRule::insert_rule(StringView rule, u32 index)
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{
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// The insertRule(rule, index) method must return the result of invoking insert a CSS rule rule into the child CSS
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// rules at index, with the nested flag set.
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HashTable<FlyString> declared_namespaces;
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if (auto* sheet = parent_style_sheet())
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declared_namespaces = sheet->declared_namespaces();
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TRY(m_rules->insert_a_css_rule(rule, index, CSSRuleList::Nested::Yes, declared_namespaces));
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// AD-HOC: The spec doesn't say where to set the parent rule, so we'll do it here.
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m_rules->item(index)->set_parent_rule(this);
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if (auto* sheet = parent_style_sheet())
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sheet->invalidate_owners(DOM::StyleInvalidationReason::StyleSheetInsertRule);
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return index;
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}
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WebIDL::ExceptionOr<void> CSSGroupingRule::delete_rule(u32 index)
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{
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TRY(m_rules->remove_a_css_rule(index));
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if (auto* sheet = parent_style_sheet())
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sheet->invalidate_owners(DOM::StyleInvalidationReason::StyleSheetDeleteRule);
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return {};
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}
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void CSSGroupingRule::for_each_effective_rule(TraversalOrder order, Function<void(Web::CSS::CSSRule const&)> const& callback) const
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{
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m_rules->for_each_effective_rule(order, callback);
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}
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void CSSGroupingRule::set_parent_style_sheet(CSSStyleSheet* parent_style_sheet)
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{
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CSSRule::set_parent_style_sheet(parent_style_sheet);
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for (auto& rule : *m_rules)
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rule->set_parent_style_sheet(parent_style_sheet);
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}
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}
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