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https://github.com/LadybirdBrowser/ladybird.git
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0b94af1109
Remove the visit_edges hook from CSS::StyleValue and stop asking CSS properties, descriptors, computed values, and layout nodes to trace through their style values. Style values are refcounted data objects, so they should not be part of the GC graph. Keeping this cleanup separate makes the later layout tree ownership change smaller and easier to review.
95 lines
4.5 KiB
C++
95 lines
4.5 KiB
C++
/*
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* Copyright (c) 2018-2023, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2024-2025, 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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#pragma once
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#include <LibWeb/CSS/CSSStyleDeclaration.h>
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#include <LibWeb/CSS/GeneratedCSSStyleProperties.h>
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#include <LibWeb/DOM/StyleInvalidationReason.h>
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#include <LibWeb/Export.h>
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namespace Web::CSS {
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// https://drafts.csswg.org/cssom/#cssstyleproperties
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class WEB_API CSSStyleProperties
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: public CSSStyleDeclaration
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, public Bindings::GeneratedCSSStyleProperties {
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WEB_PLATFORM_OBJECT(CSSStyleProperties, CSSStyleDeclaration);
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GC_DECLARE_ALLOCATOR(CSSStyleProperties);
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public:
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[[nodiscard]] static GC::Ref<CSSStyleProperties> create(JS::Realm&, Vector<StyleProperty>, OrderedHashMap<FlyString, StyleProperty> custom_properties);
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[[nodiscard]] static GC::Ref<CSSStyleProperties> create_resolved_style(JS::Realm&, Optional<DOM::AbstractElement>);
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[[nodiscard]] static GC::Ref<CSSStyleProperties> create_element_inline_style(DOM::AbstractElement, Vector<StyleProperty>, OrderedHashMap<FlyString, StyleProperty> custom_properties);
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virtual ~CSSStyleProperties() override = default;
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virtual void initialize(JS::Realm&) override;
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virtual size_t length() const override;
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virtual String item(size_t index) const override;
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Optional<StyleProperty> get_property(PropertyID) const;
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Optional<StyleProperty const&> custom_property(FlyString const& custom_property_name) const;
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WebIDL::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority = ""sv);
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WebIDL::ExceptionOr<String> remove_property(PropertyID);
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virtual WebIDL::ExceptionOr<void> set_property(FlyString const& property_name, StringView css_text, StringView priority) override;
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virtual WebIDL::ExceptionOr<String> remove_property(FlyString const& property_name) override;
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virtual String get_property_value(FlyString const& property_name) const override;
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virtual StringView get_property_priority(FlyString const& property_name) const override;
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Vector<StyleProperty> const& properties() const { return m_properties; }
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OrderedHashMap<FlyString, StyleProperty> const& custom_properties() const { return m_custom_properties; }
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size_t custom_property_count() const { return m_custom_properties.size(); }
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virtual bool has_property(PropertyNameAndID const&) const override;
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bool has_property(PropertyID) const;
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virtual RefPtr<StyleValue const> get_property_style_value(PropertyNameAndID const&) const override;
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RefPtr<StyleValue const> get_property_style_value(PropertyID) const;
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virtual WebIDL::ExceptionOr<void> set_property_style_value(PropertyNameAndID const&, NonnullRefPtr<StyleValue const>) override;
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String css_float() const;
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WebIDL::ExceptionOr<void> set_css_float(StringView);
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virtual String serialized() const final override;
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String serialize_a_css_value(StyleProperty const&) const;
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String serialize_a_css_value(Vector<StyleProperty>) const;
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virtual WebIDL::ExceptionOr<void> set_css_text(StringView) override;
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void set_declarations_from_text(StringView);
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// ^Bindings::GeneratedCSSStyleProperties
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virtual CSSStyleProperties& generated_style_properties_to_css_style_properties() override { return *this; }
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private:
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CSSStyleProperties(JS::Realm&, Computed, Readonly, Vector<StyleProperty> properties, OrderedHashMap<FlyString, StyleProperty> custom_properties, Optional<DOM::AbstractElement>);
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static Vector<StyleProperty> convert_declarations_to_specified_order(Vector<StyleProperty>&);
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virtual size_t external_memory_size() const override;
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RefPtr<StyleValue const> style_value_for_computed_property(Layout::NodeWithStyle const&, PropertyID) const;
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Optional<StyleProperty> get_property_internal(PropertyNameAndID const&) const;
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Optional<StyleProperty> get_direct_property(PropertyNameAndID const&) const;
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WebIDL::ExceptionOr<void> set_property_internal(PropertyNameAndID const&, StringView css_text, StringView priority);
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WebIDL::ExceptionOr<String> remove_property_internal(Optional<PropertyNameAndID> const&);
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bool set_a_css_declaration(PropertyID, NonnullRefPtr<StyleValue const>, Important);
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void empty_the_declarations();
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void set_the_declarations(Vector<StyleProperty> properties, OrderedHashMap<FlyString, StyleProperty> custom_properties);
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void invalidate_owners(DOM::StyleInvalidationReason);
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Vector<StyleProperty> m_properties;
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OrderedHashMap<FlyString, StyleProperty> m_custom_properties;
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};
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}
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