ladybird/Userland/Libraries/LibWeb/DOM/DOMTokenList.h
Andreas Kling bfd354492e LibWeb: Put most LibWeb GC objects in type-specific heap blocks
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. :^)
2023-11-19 22:00:48 +01:00

74 lines
3.1 KiB
C++

/*
* Copyright (c) 2021, Tim Flynn <trflynn89@serenityos.org>
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2023, Luke Wilde <lukew@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/FlyString.h>
#include <AK/Optional.h>
#include <AK/String.h>
#include <AK/StringView.h>
#include <AK/Vector.h>
#include <LibWeb/Bindings/LegacyPlatformObject.h>
#include <LibWeb/Forward.h>
#include <LibWeb/WebIDL/ExceptionOr.h>
namespace Web::DOM {
// https://dom.spec.whatwg.org/#domtokenlist
class DOMTokenList final : public Bindings::LegacyPlatformObject {
WEB_PLATFORM_OBJECT(DOMTokenList, Bindings::LegacyPlatformObject);
JS_DECLARE_ALLOCATOR(DOMTokenList);
public:
[[nodiscard]] static JS::NonnullGCPtr<DOMTokenList> create(Element& associated_element, FlyString associated_attribute);
~DOMTokenList() = default;
void associated_attribute_changed(StringView value);
virtual bool is_supported_property_index(u32 index) const override;
virtual WebIDL::ExceptionOr<JS::Value> item_value(size_t index) const override;
size_t length() const { return m_token_set.size(); }
Optional<String> item(size_t index) const;
bool contains(String const& token);
WebIDL::ExceptionOr<void> add(Vector<String> const& tokens);
WebIDL::ExceptionOr<void> remove(Vector<String> const& tokens);
WebIDL::ExceptionOr<bool> toggle(String const& token, Optional<bool> force);
WebIDL::ExceptionOr<bool> replace(String const& token, String const& new_token);
WebIDL::ExceptionOr<bool> supports(StringView token);
String value() const;
void set_value(String const& value);
private:
DOMTokenList(Element& associated_element, FlyString associated_attribute);
virtual void initialize(JS::Realm&) override;
virtual void visit_edges(Cell::Visitor&) override;
// ^Bindings::LegacyPlatformObject
virtual bool supports_indexed_properties() const override { return true; }
virtual bool supports_named_properties() const override { return false; }
virtual bool has_indexed_property_setter() const override { return false; }
virtual bool has_named_property_setter() const override { return false; }
virtual bool has_named_property_deleter() const override { return false; }
virtual bool has_legacy_override_built_ins_interface_extended_attribute() const override { return false; }
virtual bool has_legacy_unenumerable_named_properties_interface_extended_attribute() const override { return false; }
virtual bool has_global_interface_extended_attribute() const override { return false; }
virtual bool indexed_property_setter_has_identifier() const override { return false; }
virtual bool named_property_setter_has_identifier() const override { return false; }
virtual bool named_property_deleter_has_identifier() const override { return false; }
WebIDL::ExceptionOr<void> validate_token(StringView token) const;
void run_update_steps();
JS::NonnullGCPtr<Element> m_associated_element;
FlyString m_associated_attribute;
Vector<String> m_token_set;
};
}