96 lines
3.7 KiB
JavaScript
96 lines
3.7 KiB
JavaScript
'use client';
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import * as React from 'react';
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import { getIntrinsicElementProps, getRTLSafeKey, useMergedRefs, slot } from '@fluentui/react-utilities';
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import { useFocusFinders } from '@fluentui/react-tabster';
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import { useFluent_unstable as useFluent } from '@fluentui/react-shared-contexts';
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import { ArrowRight, ArrowLeft } from '@fluentui/keyboard-keys';
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import { menuSplitGroupMultilineAttr } from './useMenuSplitGroupStyles.styles';
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/**
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* Create the state required to render MenuSplitGroup.
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*
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* The returned state can be modified with hooks such as useMenuSplitGroupStyles_unstable,
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* before being passed to renderMenuSplitGroup_unstable.
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*
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* @param props - props from this instance of MenuSplitGroup
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* @param ref - reference to root HTMLElement of MenuSplitGroup
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*/ export const useMenuSplitGroup_unstable = (props, ref)=>{
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const innerRef = React.useRef(undefined);
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const { dir, targetDocument } = useFluent();
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const nextArrowKey = getRTLSafeKey(ArrowRight, dir);
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const prevArrowKey = getRTLSafeKey(ArrowLeft, dir);
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const { findNextFocusable, findPrevFocusable } = useFocusFinders();
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const { multilineRef, setMultiline } = useHandleMultilineMenuItem();
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const onKeyDown = React.useCallback((e)=>{
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var _innerRef_current;
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const activeElement = targetDocument === null || targetDocument === void 0 ? void 0 : targetDocument.activeElement;
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if (!activeElement) {
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return;
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}
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if (!((_innerRef_current = innerRef.current) === null || _innerRef_current === void 0 ? void 0 : _innerRef_current.contains(activeElement))) {
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return;
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}
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if (e.key === nextArrowKey) {
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const next = findNextFocusable(activeElement, {
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container: innerRef.current
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});
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next === null || next === void 0 ? void 0 : next.focus();
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}
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if (e.key === prevArrowKey) {
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const prev = findPrevFocusable(activeElement, {
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container: innerRef.current
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});
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prev === null || prev === void 0 ? void 0 : prev.focus();
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}
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}, [
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findNextFocusable,
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findPrevFocusable,
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targetDocument,
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nextArrowKey,
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prevArrowKey
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]);
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return {
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components: {
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root: 'div'
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},
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setMultiline,
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root: slot.always(getIntrinsicElementProps('div', {
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role: 'group',
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// FIXME:
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// `ref` is wrongly assigned to be `HTMLElement` instead of `HTMLDivElement`
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// but since it would be a breaking change to fix it, we are casting ref to it's proper type
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ref: useMergedRefs(ref, innerRef, multilineRef),
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onKeyDown,
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...props
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}), {
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elementType: 'div'
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})
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};
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};
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/**
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* Creates a callback that lets a multiline menu item child set an attribute on this component
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* Children can mount before parents so we need to store the value and apply it when the parent is mounted
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*/ const useHandleMultilineMenuItem = ()=>{
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const [handle] = React.useState(()=>{
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let isMultiline = false;
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let multilineNode = null;
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function applyAttr() {
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multilineNode === null || multilineNode === void 0 ? void 0 : multilineNode.toggleAttribute(menuSplitGroupMultilineAttr, isMultiline);
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}
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return {
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multilineRef: (node)=>{
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if (node) {
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multilineNode = node;
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applyAttr();
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} else {
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multilineNode = null;
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}
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},
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setMultiline: (value)=>{
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isMultiline = value;
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applyAttr();
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}
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};
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});
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return handle;
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};
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