mirror of
https://github.com/LadybirdBrowser/ladybird
synced 2026-05-03 13:02:09 +02:00
4b3abc6958
Element.cpp still contained the CSS logic for deciding whether an invalidation set references features present on an element. Move that matcher into CSS::Invalidation::InvalidationSetMatcher. The helper uses Element's public API for classes, id, attributes, pseudo-class state, and removed-attribute tracking. This keeps Element focused on DOM state while CSS::Invalidation owns selector feature matching.
102 lines
4.1 KiB
C++
102 lines
4.1 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 <AK/Assertions.h>
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#include <AK/IterationDecision.h>
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#include <LibWeb/CSS/Invalidation/InvalidationSetMatcher.h>
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#include <LibWeb/CSS/InvalidationSet.h>
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#include <LibWeb/CSS/Selector.h>
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#include <LibWeb/DOM/Element.h>
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#include <LibWeb/DOM/Text.h>
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#include <LibWeb/HTML/HTMLHtmlElement.h>
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#include <LibWeb/HTML/HTMLInputElement.h>
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#include <LibWeb/HTML/HTMLSelectElement.h>
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#include <LibWeb/HTML/HTMLTextAreaElement.h>
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namespace Web::CSS::Invalidation {
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bool element_matches_any_invalidation_set_property(DOM::Element const& element, InvalidationSet const& set)
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{
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auto includes_property = [&](InvalidationSet::Property const& property) {
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switch (property.type) {
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case InvalidationSet::Property::Type::Class:
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return element.class_names().contains_slow(property.name());
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case InvalidationSet::Property::Type::Id:
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return element.id() == property.name();
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case InvalidationSet::Property::Type::TagName:
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return element.local_name() == property.name();
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case InvalidationSet::Property::Type::Attribute:
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return element.has_attribute(property.name()) || element.has_removed_attribute_for_style_invalidation(property.name());
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case InvalidationSet::Property::Type::PseudoClass: {
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switch (property.value.get<PseudoClass>()) {
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case PseudoClass::Has:
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return element.affected_by_has_pseudo_class_in_subject_position()
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|| element.affected_by_has_pseudo_class_in_non_subject_position();
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case PseudoClass::Enabled:
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return element.matches_enabled_pseudo_class();
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case PseudoClass::Disabled:
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return element.matches_disabled_pseudo_class();
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case PseudoClass::Defined:
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return element.is_defined();
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case PseudoClass::Checked:
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return element.matches_checked_pseudo_class();
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case PseudoClass::PlaceholderShown:
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return element.matches_placeholder_shown_pseudo_class();
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case PseudoClass::Empty: {
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if (!element.has_children())
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return true;
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if (element.first_child_of_type<DOM::Element>())
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return false;
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bool has_nonempty_text_child = false;
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element.for_each_child_of_type<DOM::Text>([&](auto const& text_child) {
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if (!text_child.data().is_empty()) {
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has_nonempty_text_child = true;
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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});
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return !has_nonempty_text_child;
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}
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case PseudoClass::AnyLink:
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case PseudoClass::Link:
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return element.matches_link_pseudo_class();
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case PseudoClass::LocalLink:
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return element.matches_local_link_pseudo_class();
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case PseudoClass::Root:
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return is<HTML::HTMLHtmlElement>(element);
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case PseudoClass::Host:
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return element.is_shadow_host();
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case PseudoClass::Required:
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case PseudoClass::Optional:
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return is<HTML::HTMLInputElement>(element)
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|| is<HTML::HTMLSelectElement>(element)
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|| is<HTML::HTMLTextAreaElement>(element);
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default:
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VERIFY_NOT_REACHED();
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}
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}
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case InvalidationSet::Property::Type::InvalidateSelf:
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return false;
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case InvalidationSet::Property::Type::InvalidateWholeSubtree:
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return true;
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default:
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VERIFY_NOT_REACHED();
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}
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};
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bool includes_any = false;
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set.for_each_property([&](auto const& property) {
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if (includes_property(property)) {
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includes_any = true;
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return IterationDecision::Break;
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}
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return IterationDecision::Continue;
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});
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return includes_any;
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}
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}
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