9b79a686eb
The main motivation behind this is to remove JS specifics of the Realm from the implementation of the Heap. As a side effect of this change, this is a bit nicer to read than the previous approach, and in my opinion, also makes it a little more clear that this method is specific to a JavaScript Realm.
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
/*
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* Copyright (c) 2024, Sam Atkins <sam@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 "CSSNestedDeclarations.h"
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#include <LibWeb/Bindings/CSSNestedDeclarationsPrototype.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/CSS/CSSStyleRule.h>
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namespace Web::CSS {
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JS_DEFINE_ALLOCATOR(CSSNestedDeclarations);
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JS::NonnullGCPtr<CSSNestedDeclarations> CSSNestedDeclarations::create(JS::Realm& realm, PropertyOwningCSSStyleDeclaration& declaration)
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{
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return realm.create<CSSNestedDeclarations>(realm, declaration);
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}
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CSSNestedDeclarations::CSSNestedDeclarations(JS::Realm& realm, PropertyOwningCSSStyleDeclaration& declaration)
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: CSSRule(realm, Type::NestedDeclarations)
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, m_declaration(declaration)
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{
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m_declaration->set_parent_rule(*this);
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}
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void CSSNestedDeclarations::initialize(JS::Realm& realm)
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{
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Base::initialize(realm);
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WEB_SET_PROTOTYPE_FOR_INTERFACE(CSSNestedDeclarations);
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}
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void CSSNestedDeclarations::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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visitor.visit(m_declaration);
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visitor.visit(m_parent_style_rule);
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}
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CSSStyleDeclaration* CSSNestedDeclarations::style()
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{
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return m_declaration;
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}
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CSSStyleRule const& CSSNestedDeclarations::parent_style_rule() const
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{
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if (m_parent_style_rule)
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return *m_parent_style_rule;
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for (auto* parent = parent_rule(); parent; parent = parent->parent_rule()) {
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if (is<CSSStyleRule>(parent)) {
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m_parent_style_rule = static_cast<CSSStyleRule const*>(parent);
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return *m_parent_style_rule;
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}
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}
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dbgln("CSSNestedDeclarations has no parent style rule!");
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VERIFY_NOT_REACHED();
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}
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String CSSNestedDeclarations::serialized() const
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{
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// NOTE: There's no proper spec for this yet, only this note:
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// "The CSSNestedDeclarations rule serializes as if its declaration block had been serialized directly."
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// - https://drafts.csswg.org/css-nesting-1/#ref-for-cssnesteddeclarations%E2%91%A1
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// So, we'll do the simple thing and hope it's good.
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return m_declaration->serialized();
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}
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void CSSNestedDeclarations::clear_caches()
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{
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Base::clear_caches();
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m_parent_style_rule = nullptr;
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}
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}
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