ladybird/Userland/Libraries/LibWeb/HTML/HTMLSelectElement.h

/*
 * Copyright (c) 2020, the SerenityOS developers.
 * Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>
 * Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
 * Copyright (c) 2023, Bastiaan van der Plaat <bastiaan.v.d.plaat@gmail.com>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#pragma once

#include <LibWeb/HTML/FormAssociatedElement.h>
#include <LibWeb/HTML/HTMLElement.h>
#include <LibWeb/HTML/HTMLOptionsCollection.h>

namespace Web::HTML {

class HTMLSelectElement final
    : public HTMLElement
    , public FormAssociatedElement {
    WEB_PLATFORM_OBJECT(HTMLSelectElement, HTMLElement);
    JS_DECLARE_ALLOCATOR(HTMLSelectElement);
    FORM_ASSOCIATED_ELEMENT(HTMLElement, HTMLSelectElement)

public:
    virtual ~HTMLSelectElement() override;

    virtual JS::GCPtr<Layout::Node> create_layout_node(NonnullRefPtr<CSS::StyleProperties>) override;

    JS::GCPtr<HTMLOptionsCollection> const& options();

    size_t length();
    DOM::Element* item(size_t index);
    DOM::Element* named_item(FlyString const& name);
    WebIDL::ExceptionOr<void> add(HTMLOptionOrOptGroupElement element, Optional<HTMLElementOrElementIndex> before = {});

    int selected_index() const;
    void set_selected_index(int);

    virtual String value() const override;
    WebIDL::ExceptionOr<void> set_value(String const&);

    bool is_open() const { return m_is_open; }
    void set_is_open(bool);

    Vector<JS::Handle<HTMLOptionElement>> list_of_options() const;

    // ^EventTarget
    // https://html.spec.whatwg.org/multipage/interaction.html#the-tabindex-attribute:the-select-element
    virtual bool is_focusable() const override { return true; }

    // ^FormAssociatedElement
    // https://html.spec.whatwg.org/multipage/forms.html#category-listed
    virtual bool is_listed() const override { return true; }

    // https://html.spec.whatwg.org/multipage/forms.html#category-submit
    virtual bool is_submittable() const override { return true; }

    // https://html.spec.whatwg.org/multipage/forms.html#category-reset
    virtual bool is_resettable() const override { return true; }

    // https://html.spec.whatwg.org/multipage/forms.html#category-autocapitalize
    virtual bool is_auto_capitalize_inheriting() const override { return true; }

    // ^HTMLElement
    // https://html.spec.whatwg.org/multipage/forms.html#category-label
    virtual bool is_labelable() const override { return true; }

    virtual void reset_algorithm() override;

    String const& type() const;

    virtual Optional<ARIA::Role> default_role() const override;

    virtual bool has_activation_behavior() const override;
    virtual void activation_behavior(DOM::Event const&) override;

    virtual void form_associated_element_was_inserted() override;
    virtual void form_associated_element_was_removed(DOM::Node*) override;

    void did_select_value(Optional<String> value);

private:
    HTMLSelectElement(DOM::Document&, DOM::QualifiedName);

    virtual void initialize(JS::Realm&) override;
    virtual void visit_edges(Cell::Visitor&) override;

    // ^DOM::Element
    virtual i32 default_tab_index_value() const override;

    virtual void computed_css_values_changed() override;

    void create_shadow_tree_if_needed();
    void update_inner_text_element();

    JS::GCPtr<HTMLOptionsCollection> m_options;
    bool m_is_open { false };
    JS::GCPtr<DOM::Element> m_inner_text_element;
    JS::GCPtr<DOM::Element> m_chevron_icon_element;
};

}