75 lines
2.6 KiB
JavaScript
75 lines
2.6 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = useAccessibility;
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var _KeyCode = _interopRequireDefault(require("@rc-component/util/lib/KeyCode"));
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var _raf = _interopRequireDefault(require("@rc-component/util/lib/raf"));
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var React = _interopRequireWildcard(require("react"));
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function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function (e) { return e ? t : r; })(e); }
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function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != typeof e && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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const {
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ESC,
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TAB
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} = _KeyCode.default;
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function useAccessibility({
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visible,
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triggerRef,
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onVisibleChange,
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autoFocus,
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overlayRef
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}) {
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const focusMenuRef = React.useRef(false);
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const handleCloseMenuAndReturnFocus = () => {
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if (visible) {
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triggerRef.current?.focus?.();
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onVisibleChange?.(false);
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}
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};
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const focusMenu = () => {
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if (overlayRef.current?.focus) {
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overlayRef.current.focus();
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focusMenuRef.current = true;
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return true;
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}
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return false;
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};
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const handleKeyDown = event => {
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switch (event.keyCode) {
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case ESC:
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handleCloseMenuAndReturnFocus();
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break;
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case TAB:
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{
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let focusResult = false;
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if (!focusMenuRef.current) {
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focusResult = focusMenu();
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}
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if (focusResult) {
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event.preventDefault();
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} else {
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handleCloseMenuAndReturnFocus();
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}
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break;
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}
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}
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};
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React.useEffect(() => {
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if (visible) {
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window.addEventListener('keydown', handleKeyDown);
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if (autoFocus) {
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// FIXME: hack with raf
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(0, _raf.default)(focusMenu, 3);
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}
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return () => {
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window.removeEventListener('keydown', handleKeyDown);
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focusMenuRef.current = false;
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};
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}
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return () => {
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focusMenuRef.current = false;
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};
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}, [visible]); // eslint-disable-line react-hooks/exhaustive-deps
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} |