bfd354492e
With this change, we now have ~1200 CellAllocators across both LibJS and LibWeb in a normal WebContent instance. This gives us a minimum heap size of 4.7 MiB in the scenario where we only have one cell allocated per type. Of course, in practice there will be many more of each type, so the effective overhead is quite a bit smaller than that in practice. I left a few types unconverted to this mechanism because I got tired of doing this. :^)
126 lines
5 KiB
C++
126 lines
5 KiB
C++
/*
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* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.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/DeprecatedString.h>
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#include <AK/Vector.h>
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#include <LibWeb/Bindings/PlatformObject.h>
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#include <LibWeb/CSS/StyleProperty.h>
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#include <LibWeb/CSS/StyleValue.h>
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namespace Web::CSS {
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class CSSStyleDeclaration : public Bindings::PlatformObject {
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WEB_PLATFORM_OBJECT(CSSStyleDeclaration, Bindings::PlatformObject);
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JS_DECLARE_ALLOCATOR(CSSStyleDeclaration);
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public:
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virtual ~CSSStyleDeclaration() = default;
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virtual void initialize(JS::Realm&) override;
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virtual size_t length() const = 0;
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virtual String item(size_t index) const = 0;
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virtual Optional<StyleProperty> property(PropertyID) const = 0;
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virtual WebIDL::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority = ""sv) = 0;
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virtual WebIDL::ExceptionOr<String> remove_property(PropertyID) = 0;
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WebIDL::ExceptionOr<void> set_property(StringView property_name, StringView css_text, StringView priority);
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WebIDL::ExceptionOr<String> remove_property(StringView property_name);
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String get_property_value(StringView property) const;
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StringView get_property_priority(StringView property) const;
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DeprecatedString css_text() const;
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virtual WebIDL::ExceptionOr<void> set_css_text(StringView) = 0;
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virtual DeprecatedString serialized() const = 0;
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virtual JS::ThrowCompletionOr<bool> internal_has_property(JS::PropertyKey const& name) const override;
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virtual JS::ThrowCompletionOr<JS::Value> internal_get(JS::PropertyKey const&, JS::Value receiver, JS::CacheablePropertyMetadata*) const override;
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virtual JS::ThrowCompletionOr<bool> internal_set(JS::PropertyKey const&, JS::Value value, JS::Value receiver, JS::CacheablePropertyMetadata*) override;
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protected:
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explicit CSSStyleDeclaration(JS::Realm&);
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};
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class PropertyOwningCSSStyleDeclaration : public CSSStyleDeclaration {
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WEB_PLATFORM_OBJECT(PropertyOwningCSSStyleDeclaration, CSSStyleDeclaration);
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JS_DECLARE_ALLOCATOR(PropertyOwningCSSStyleDeclaration);
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friend class ElementInlineCSSStyleDeclaration;
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public:
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[[nodiscard]] static JS::NonnullGCPtr<PropertyOwningCSSStyleDeclaration>
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create(JS::Realm&, Vector<StyleProperty>, HashMap<FlyString, StyleProperty> custom_properties);
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virtual ~PropertyOwningCSSStyleDeclaration() override = default;
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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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virtual Optional<StyleProperty> property(PropertyID) const override;
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virtual WebIDL::ExceptionOr<void> set_property(PropertyID, StringView css_text, StringView priority) override;
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virtual WebIDL::ExceptionOr<String> remove_property(PropertyID) override;
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Vector<StyleProperty> const& properties() const { return m_properties; }
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HashMap<FlyString, StyleProperty> const& custom_properties() const { return m_custom_properties; }
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Optional<StyleProperty> custom_property(FlyString const& custom_property_name) const { return m_custom_properties.get(custom_property_name); }
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size_t custom_property_count() const { return m_custom_properties.size(); }
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virtual DeprecatedString serialized() const final override;
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virtual WebIDL::ExceptionOr<void> set_css_text(StringView) override;
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protected:
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PropertyOwningCSSStyleDeclaration(JS::Realm&, Vector<StyleProperty>, HashMap<FlyString, StyleProperty>);
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virtual void update_style_attribute() { }
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void empty_the_declarations();
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void set_the_declarations(Vector<StyleProperty> properties, HashMap<FlyString, StyleProperty> custom_properties);
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private:
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bool set_a_css_declaration(PropertyID, NonnullRefPtr<StyleValue const>, Important);
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virtual void visit_edges(Cell::Visitor&) override;
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Vector<StyleProperty> m_properties;
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HashMap<FlyString, StyleProperty> m_custom_properties;
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};
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class ElementInlineCSSStyleDeclaration final : public PropertyOwningCSSStyleDeclaration {
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WEB_PLATFORM_OBJECT(ElementInlineCSSStyleDeclaration, PropertyOwningCSSStyleDeclaration);
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JS_DECLARE_ALLOCATOR(ElementInlineCSSStyleDeclaration);
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public:
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[[nodiscard]] static JS::NonnullGCPtr<ElementInlineCSSStyleDeclaration> create(DOM::Element&, Vector<StyleProperty>, HashMap<FlyString, StyleProperty> custom_properties);
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virtual ~ElementInlineCSSStyleDeclaration() override = default;
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DOM::Element* element() { return m_element.ptr(); }
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const DOM::Element* element() const { return m_element.ptr(); }
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bool is_updating() const { return m_updating; }
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virtual WebIDL::ExceptionOr<void> set_css_text(StringView) override;
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private:
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ElementInlineCSSStyleDeclaration(DOM::Element&, Vector<StyleProperty> properties, HashMap<FlyString, StyleProperty> custom_properties);
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virtual void visit_edges(Cell::Visitor&) override;
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virtual void update_style_attribute() override;
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JS::GCPtr<DOM::Element> m_element;
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// https://drafts.csswg.org/cssom/#cssstyledeclaration-updating-flag
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bool m_updating { false };
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};
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}
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