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https://github.com/LadybirdBrowser/ladybird.git
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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. :^)
89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
/*
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* Copyright (c) 2021-2022, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2023, Luke Wilde <lukew@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/Function.h>
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#include <AK/Iterator.h>
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#include <AK/RefPtr.h>
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#include <LibWeb/Bindings/LegacyPlatformObject.h>
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#include <LibWeb/CSS/CSSRule.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::CSS {
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// https://www.w3.org/TR/cssom/#the-cssrulelist-interface
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class CSSRuleList : public Bindings::LegacyPlatformObject {
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WEB_PLATFORM_OBJECT(CSSRuleList, Bindings::LegacyPlatformObject);
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JS_DECLARE_ALLOCATOR(CSSRuleList);
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public:
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[[nodiscard]] static JS::NonnullGCPtr<CSSRuleList> create(JS::Realm&, JS::MarkedVector<CSSRule*> const&);
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[[nodiscard]] static JS::NonnullGCPtr<CSSRuleList> create_empty(JS::Realm&);
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~CSSRuleList() = default;
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CSSRule const* item(size_t index) const
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{
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if (index >= length())
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return nullptr;
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return m_rules[index];
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}
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CSSRule* item(size_t index)
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{
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if (index >= length())
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return nullptr;
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return m_rules[index];
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}
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size_t length() const { return m_rules.size(); }
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auto begin() const { return m_rules.begin(); }
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auto begin() { return m_rules.begin(); }
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auto end() const { return m_rules.end(); }
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auto end() { return m_rules.end(); }
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virtual bool is_supported_property_index(u32 index) const override;
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virtual WebIDL::ExceptionOr<JS::Value> item_value(size_t index) const override;
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WebIDL::ExceptionOr<void> remove_a_css_rule(u32 index);
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WebIDL::ExceptionOr<unsigned> insert_a_css_rule(Variant<StringView, CSSRule*>, u32 index);
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void for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const;
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// Returns whether the match state of any media queries changed after evaluation.
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bool evaluate_media_queries(HTML::Window const&);
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void for_each_effective_keyframes_at_rule(Function<void(CSSKeyframesRule const&)> const& callback) const;
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Function<void()> on_change;
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private:
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explicit CSSRuleList(JS::Realm&);
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virtual void initialize(JS::Realm&) override;
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virtual void visit_edges(Cell::Visitor&) override;
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// ^Bindings::LegacyPlatformObject
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virtual bool supports_indexed_properties() const override { return true; }
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virtual bool supports_named_properties() const override { return false; }
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virtual bool has_indexed_property_setter() const override { return false; }
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virtual bool has_named_property_setter() const override { return false; }
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virtual bool has_named_property_deleter() const override { return false; }
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virtual bool has_legacy_override_built_ins_interface_extended_attribute() const override { return false; }
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virtual bool has_legacy_unenumerable_named_properties_interface_extended_attribute() const override { return false; }
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virtual bool has_global_interface_extended_attribute() const override { return false; }
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virtual bool indexed_property_setter_has_identifier() const override { return false; }
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virtual bool named_property_setter_has_identifier() const override { return false; }
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virtual bool named_property_deleter_has_identifier() const override { return false; }
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Vector<JS::NonnullGCPtr<CSSRule>> m_rules;
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};
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}
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