0b23dddb4b
If a rule gets its caches cleared because it's moved in the OM, then its child rules' caches are likely invalid and need clearing too. Assuming that caches only point "upwards", this will correctly clear them all. For the time being that will be true.
84 lines
2.3 KiB
C++
84 lines
2.3 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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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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#pragma once
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#include <AK/String.h>
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#include <LibJS/Heap/GCPtr.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/CSS/CSSStyleDeclaration.h>
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#include <LibWeb/CSS/Selector.h>
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#include <LibWeb/WebIDL/Types.h>
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namespace Web::CSS {
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class CSSRule : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(CSSRule, Bindings::PlatformObject);
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public:
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virtual ~CSSRule() = default;
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// https://drafts.csswg.org/cssom/#dom-cssrule-type
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enum class Type : WebIDL::UnsignedShort {
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Style = 1,
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Import = 3,
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Media = 4,
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FontFace = 5,
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Keyframes = 7,
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Keyframe = 8,
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Namespace = 10,
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Supports = 12,
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// AD-HOC: These are not included in the spec, but we need them internally. So, their numbers are arbitrary.
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LayerBlock = 100,
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LayerStatement = 101,
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NestedDeclarations = 102,
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Property = 103,
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};
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Type type() const { return m_type; }
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WebIDL::UnsignedShort type_for_bindings() const;
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String css_text() const;
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void set_css_text(StringView);
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CSSRule* parent_rule() { return m_parent_rule.ptr(); }
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CSSRule const* parent_rule() const { return m_parent_rule.ptr(); }
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void set_parent_rule(CSSRule*);
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CSSStyleSheet* parent_style_sheet() { return m_parent_style_sheet.ptr(); }
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virtual void set_parent_style_sheet(CSSStyleSheet*);
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template<typename T>
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bool fast_is() const = delete;
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// https://drafts.csswg.org/cssom-1/#serialize-a-css-rule
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virtual String serialized() const = 0;
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virtual void clear_caches();
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protected:
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explicit CSSRule(JS::Realm&, Type);
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virtual void visit_edges(Cell::Visitor&) override;
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[[nodiscard]] FlyString const& parent_layer_internal_qualified_name() const
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{
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if (!m_cached_layer_name.has_value())
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return parent_layer_internal_qualified_name_slow_case();
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return m_cached_layer_name.value();
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}
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[[nodiscard]] FlyString const& parent_layer_internal_qualified_name_slow_case() const;
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Type m_type;
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JS::GCPtr<CSSRule> m_parent_rule;
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JS::GCPtr<CSSStyleSheet> m_parent_style_sheet;
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mutable Optional<FlyString> m_cached_layer_name;
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};
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}
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