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https://github.com/LadybirdBrowser/ladybird.git
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ebd6d49415
This extends the optimization introduced in the previous commit to also apply to the inserted steps for an option element. This makes the test: https://wpt.live/html/select/options-length-too-large.html Go from not ever completing due to how slow it was to running, to finishing in 800ms on my PC :^)
137 lines
4.7 KiB
C++
137 lines
4.7 KiB
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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* Copyright (c) 2021-2022, Andreas Kling <andreas@ladybird.org>
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* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
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* Copyright (c) 2023, Bastiaan van der Plaat <bastiaan.v.d.plaat@gmail.com>
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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/HTML/FormAssociatedElement.h>
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#include <LibWeb/HTML/HTMLElement.h>
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#include <LibWeb/HTML/HTMLOptionsCollection.h>
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#include <LibWeb/HTML/SelectItem.h>
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#include <LibWeb/WebIDL/Types.h>
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namespace Web::HTML {
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class HTMLSelectElement final
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: public HTMLElement
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, public FormAssociatedElement {
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WEB_PLATFORM_OBJECT(HTMLSelectElement, HTMLElement);
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GC_DECLARE_ALLOCATOR(HTMLSelectElement);
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FORM_ASSOCIATED_ELEMENT(HTMLElement, HTMLSelectElement)
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public:
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virtual ~HTMLSelectElement() override;
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virtual void adjust_computed_style(CSS::ComputedProperties&) override;
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WebIDL::UnsignedLong size() const;
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WebIDL::ExceptionOr<void> set_size(WebIDL::UnsignedLong);
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GC::Ptr<HTMLOptionsCollection> const& options();
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WebIDL::UnsignedLong length();
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WebIDL::ExceptionOr<void> set_length(WebIDL::UnsignedLong);
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HTMLOptionElement* item(WebIDL::UnsignedLong index);
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HTMLOptionElement* named_item(FlyString const& name);
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WebIDL::ExceptionOr<void> add(HTMLOptionOrOptGroupElement element, Optional<HTMLElementOrElementIndex> before = {});
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void remove();
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void remove(WebIDL::Long);
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GC::Ref<DOM::HTMLCollection> selected_options();
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WebIDL::Long selected_index() const;
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void set_selected_index(WebIDL::Long);
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virtual String value() const override;
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WebIDL::ExceptionOr<void> set_value(String const&);
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bool is_open() const { return m_is_open; }
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void set_is_open(bool);
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WebIDL::ExceptionOr<void> show_picker();
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Vector<GC::Root<HTMLOptionElement>> list_of_options() const;
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// ^EventTarget
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// https://html.spec.whatwg.org/multipage/interaction.html#the-tabindex-attribute:the-select-element
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// https://html.spec.whatwg.org/multipage/interaction.html#focusable-area
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// https://html.spec.whatwg.org/multipage/semantics-other.html#concept-element-disabled
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virtual bool is_focusable() const override;
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// ^FormAssociatedElement
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// https://html.spec.whatwg.org/multipage/forms.html#category-listed
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virtual bool is_listed() const override { return true; }
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// https://html.spec.whatwg.org/multipage/forms.html#category-submit
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virtual bool is_submittable() const override { return true; }
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// https://html.spec.whatwg.org/multipage/forms.html#category-reset
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virtual bool is_resettable() const override { return true; }
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// https://html.spec.whatwg.org/multipage/forms.html#category-autocapitalize
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virtual bool is_auto_capitalize_inheriting() const override { return true; }
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// ^HTMLElement
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// https://html.spec.whatwg.org/multipage/forms.html#category-label
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virtual bool is_labelable() const override { return true; }
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virtual void reset_algorithm() override;
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String const& type() const;
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virtual Optional<ARIA::Role> default_role() const override;
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virtual bool has_activation_behavior() const override;
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virtual void activation_behavior(DOM::Event const&) override;
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virtual void form_associated_element_was_inserted() override;
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virtual void form_associated_element_was_removed(DOM::Node*) override;
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void did_select_item(Optional<u32> const& id);
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void update_selectedness();
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void update_inner_text_element(Badge<HTMLOptionElement>);
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bool can_skip_selectedness_update_for_inserted_option(HTMLOptionElement const&) const;
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private:
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HTMLSelectElement(DOM::Document&, DOM::QualifiedName);
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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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// ^DOM::Element
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virtual i32 default_tab_index_value() const override;
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virtual void computed_properties_changed() override;
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virtual void children_changed(ChildrenChangedMetadata const*) override;
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bool can_skip_children_changed_selectedness_update(ChildrenChangedMetadata const& metadata) const;
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void update_cached_list_of_options() const;
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void show_the_picker_if_applicable();
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void create_shadow_tree_if_needed();
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void update_inner_text_element();
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void queue_input_and_change_events();
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u32 display_size() const;
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mutable Vector<GC::Ref<HTMLOptionElement>> m_cached_list_of_options;
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mutable size_t m_cached_number_of_selected_options { 0 };
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GC::Ptr<HTMLOptionsCollection> m_options;
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GC::Ptr<DOM::HTMLCollection> m_selected_options;
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bool m_is_open { false };
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Vector<SelectItem> m_select_items;
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GC::Ptr<DOM::Element> m_inner_text_element;
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GC::Ptr<DOM::Element> m_chevron_icon_element;
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};
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}
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