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https://github.com/RGBCube/serenity
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1812221a2d
This is the API for NamedNodeMap which we are wanting to eventually use instead of taking a StringView. Currently we just end up deferring to the StringView versions of these functions, but at some stage in the future, this will allow us to have O(1) comparison when making attribute lookups. In the meantime, the advantage of this API is that it makes it much less awkward to use than the StringView variant when you have an Optional<FlyString> namespace to pass through.
90 lines
4.5 KiB
C++
90 lines
4.5 KiB
C++
/*
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* Copyright (c) 2021, Tim Flynn <trflynn89@serenityos.org>
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* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2022, Alexander Narsudinov <a.narsudinov@gmail.com>
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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/DeprecatedString.h>
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#include <AK/StringView.h>
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#include <LibWeb/Bindings/LegacyPlatformObject.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::DOM {
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// https://dom.spec.whatwg.org/#interface-namednodemap
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class NamedNodeMap : public Bindings::LegacyPlatformObject {
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WEB_PLATFORM_OBJECT(NamedNodeMap, Bindings::LegacyPlatformObject);
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public:
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[[nodiscard]] static JS::NonnullGCPtr<NamedNodeMap> create(Element&);
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~NamedNodeMap() = default;
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virtual bool is_supported_property_index(u32 index) const override;
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virtual Vector<DeprecatedString> supported_property_names() const override;
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virtual WebIDL::ExceptionOr<JS::Value> item_value(size_t index) const override;
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virtual WebIDL::ExceptionOr<JS::Value> named_item_value(FlyString const& name) const override;
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size_t length() const { return m_attributes.size(); }
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bool is_empty() const { return m_attributes.is_empty(); }
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// Methods defined by the spec for JavaScript:
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Attr const* item(u32 index) const;
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Attr const* get_named_item(StringView qualified_name) const;
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Attr const* get_named_item_ns(Optional<String> const& namespace_, StringView local_name) const;
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WebIDL::ExceptionOr<JS::GCPtr<Attr>> set_named_item(Attr& attribute);
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WebIDL::ExceptionOr<JS::GCPtr<Attr>> set_named_item_ns(Attr& attribute);
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WebIDL::ExceptionOr<Attr const*> remove_named_item(StringView qualified_name);
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WebIDL::ExceptionOr<Attr const*> remove_named_item_ns(Optional<String> const& namespace_, StringView local_name);
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// Methods defined by the spec for internal use:
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// FIXME: These should be taking `FlyString const&' / 'Optional<FlyString> const&'
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Attr* get_attribute(StringView qualified_name, size_t* item_index = nullptr);
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Attr* get_attribute_ns(StringView namespace_, StringView local_name, size_t* item_index = nullptr);
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Attr const* get_attribute(StringView qualified_name, size_t* item_index = nullptr) const;
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Attr const* get_attribute_ns(StringView namespace_, StringView local_name, size_t* item_index = nullptr) const;
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WebIDL::ExceptionOr<JS::GCPtr<Attr>> set_attribute(Attr& attribute);
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void replace_attribute(Attr& old_attribute, Attr& new_attribute, size_t old_attribute_index);
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void append_attribute(Attr& attribute);
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Attr* get_attribute_ns(Optional<FlyString> const& namespace_, FlyString const& local_name, size_t* item_index = nullptr);
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Attr const* get_attribute_ns(Optional<FlyString> const& namespace_, FlyString const& local_name, size_t* item_index = nullptr) const;
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// FIXME: This should take a 'FlyString cosnt&'
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Attr const* remove_attribute(StringView qualified_name);
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Attr const* remove_attribute_ns(StringView namespace_, StringView local_name);
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private:
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explicit NamedNodeMap(Element&);
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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 true; }
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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 true; }
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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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Element& associated_element() { return *m_element; }
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Element const& associated_element() const { return *m_element; }
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void remove_attribute_at_index(size_t attribute_index);
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JS::NonnullGCPtr<DOM::Element> m_element;
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Vector<JS::NonnullGCPtr<Attr>> m_attributes;
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};
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}
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