ui/node_modules/@melt-ui/svelte/dist/builders/combobox/create.js

import { useEscapeKeydown } from '../../internal/actions/index.js';
import { addEventListener, addMeltEventListener, makeElement, createElHelpers, effect, executeCallbacks, isContentEditable, isHTMLInputElement, kbd, noop, omit, } from '../../internal/helpers/index.js';
import { writable } from 'svelte/store';
import { createListbox } from '../listbox/create.js';
// prettier-ignore
export const INTERACTION_KEYS = [kbd.ARROW_LEFT, kbd.ESCAPE, kbd.ARROW_RIGHT, kbd.SHIFT, kbd.CAPS_LOCK, kbd.CONTROL, kbd.ALT, kbd.META, kbd.ENTER, kbd.F1, kbd.F2, kbd.F3, kbd.F4, kbd.F5, kbd.F6, kbd.F7, kbd.F8, kbd.F9, kbd.F10, kbd.F11, kbd.F12];
const { name } = createElHelpers('combobox');
/**
 * Creates an ARIA-1.2-compliant combobox.
 *
 * @TODO multi-select using `tags-input` builder?
 */
export function createCombobox(props) {
    const listbox = createListbox({ ...props, builder: 'combobox', typeahead: false });
    const inputValue = writable('');
    const touchedInput = writable(false);
    /* -------- */
    /* ELEMENTS */
    /* -------- */
    /** Action and attributes for the text input. */
    const input = makeElement(name('input'), {
        stores: [listbox.elements.trigger, inputValue],
        returned: ([$trigger, $inputValue]) => {
            return {
                ...omit($trigger, 'action'),
                role: 'combobox',
                value: $inputValue,
                autocomplete: 'off',
            };
        },
        action: (node) => {
            const unsubscribe = executeCallbacks(addMeltEventListener(node, 'input', (e) => {
                if (!isHTMLInputElement(e.target) && !isContentEditable(e.target))
                    return;
                touchedInput.set(true);
            }), 
            // This shouldn't be cancelled ever, so we don't use addMeltEventListener.
            addEventListener(node, 'input', (e) => {
                if (isHTMLInputElement(e.target)) {
                    inputValue.set(e.target.value);
                }
                if (isContentEditable(e.target)) {
                    inputValue.set(e.target.innerText);
                }
            }));
            let unsubEscapeKeydown = noop;
            const escape = useEscapeKeydown(node, {
                handler: () => {
                    listbox.helpers.closeMenu();
                },
            });
            if (escape && escape.destroy) {
                unsubEscapeKeydown = escape.destroy;
            }
            const { destroy } = listbox.elements.trigger(node);
            return {
                destroy() {
                    destroy?.();
                    unsubscribe();
                    unsubEscapeKeydown();
                },
            };
        },
    });
    effect(listbox.states.open, ($open) => {
        if (!$open) {
            touchedInput.set(false);
        }
    });
    return {
        ...listbox,
        elements: {
            ...omit(listbox.elements, 'trigger'),
            input,
        },
        states: {
            ...listbox.states,
            touchedInput,
            inputValue,
        },
    };
}