@navikt/ds-react/esm/util/virtualfocus/parts/VirtualFocusAnchor.js

React components from the Norwegian Labour and Welfare Administration.

var __rest = (this && this.__rest) || function (s, e) {
    var t = {};
    for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
        t[p] = s[p];
    if (s != null && typeof Object.getOwnPropertySymbols === "function")
        for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
            if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
                t[p[i]] = s[p[i]];
        }
    return t;
};
import React, { forwardRef } from "react";
import { Slot } from "../../../slot/Slot.js";
import { composeEventHandlers } from "../../composeEventHandlers.js";
import { useMergeRefs } from "../../hooks/index.js";
import { useVirtualFocusDescendant, useVirtualFocusInternalContext, } from "../Context.js";
/**
 * Must have a single child that is an input element.
 */
export const VirtualFocusAnchor = forwardRef((_a, ref) => {
    var { onSelect, onActive, children } = _a, rest = __rest(_a, ["onSelect", "onActive", "children"]);
    const { virtualFocusIdx, setVirtualFocusIdx, loop, uniqueId } = useVirtualFocusInternalContext();
    const { register, descendants, index } = useVirtualFocusDescendant({
        handleOnActive: () => {
            setVirtualFocusIdx(0);
            onActive();
        },
        handleOnSelect: onSelect,
    });
    const mergedRefs = useMergeRefs(ref, register);
    return (React.createElement(Slot, Object.assign({ ref: mergedRefs, tabIndex: 0 }, rest, { id: `virtualfocus-${uniqueId}-${index}`, "aria-owns": `virtualfocus-${uniqueId}-content`, "aria-controls": `virtualfocus-${uniqueId}-content`, "aria-activedescendant": `virtualfocus-${uniqueId}-${virtualFocusIdx}`, onKeyDown: composeEventHandlers(rest.onKeyDown, (event) => {
            if (event.key === "ArrowDown") {
                event.preventDefault();
                const to_focus_descendant = descendants.next(virtualFocusIdx, loop);
                if (to_focus_descendant) {
                    to_focus_descendant.handleOnActive();
                }
            }
            else if (event.key === "ArrowUp") {
                event.preventDefault();
                const to_focus_descendant = descendants.prev(virtualFocusIdx, loop);
                if (to_focus_descendant) {
                    to_focus_descendant.handleOnActive();
                }
            }
            else if (event.key === "Enter") {
                const curr = descendants.item(virtualFocusIdx);
                if (curr === null || curr === void 0 ? void 0 : curr.handleOnSelect) {
                    curr.handleOnSelect();
                }
            }
        }) }), children));
});
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