antd-mobile
Version:
<div align="center">
47 lines (46 loc) • 1.49 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.useCascaderValueExtend = useCascaderValueExtend;
var _react = require("react");
var _memoize = _interopRequireDefault(require("lodash/memoize"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function useCascaderValueExtend(options) {
const generateItems = (0, _react.useMemo)(() => {
return (0, _memoize.default)(val => {
const ret = [];
let currentOptions = options;
for (const v of val) {
const target = currentOptions.find(option => option.value === v);
if (!target) {
break;
}
ret.push(target);
if (!target.children) break;
currentOptions = target.children;
}
return ret;
}, val => JSON.stringify(val));
}, [options]);
const generateIsLeaf = (0, _react.useMemo)(() => {
return (0, _memoize.default)(val => {
const children = val.reduce((currentOptions, v) => {
var _a;
return ((_a = currentOptions.find(option => option.value === v)) === null || _a === void 0 ? void 0 : _a.children) || [];
}, options);
return children.length === 0;
}, val => JSON.stringify(val));
}, [options]);
function generateValueExtend(val) {
return {
get items() {
return generateItems(val);
},
get isLeaf() {
return generateIsLeaf(val);
}
};
}
return generateValueExtend;
}