"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = useMultipleSelect; var _react = require("react"); /** * @title multipleSelect hooks * @description multipleSelect by hold down shift key */ function useMultipleSelect(getKey) { const [prevSelectedIndex, setPrevSelectedIndex] = (0, _react.useState)(null); const multipleSelect = (0, _react.useCallback)((currentSelectedIndex, data, selectedKeys) => { const configPrevSelectedIndex = prevSelectedIndex !== null && prevSelectedIndex !== void 0 ? prevSelectedIndex : currentSelectedIndex; // add/delete the selected range const startIndex = Math.min(configPrevSelectedIndex || 0, currentSelectedIndex); const endIndex = Math.max(configPrevSelectedIndex || 0, currentSelectedIndex); const rangeKeys = data.slice(startIndex, endIndex + 1).map(item => getKey(item)); const shouldSelected = rangeKeys.some(rangeKey => !selectedKeys.has(rangeKey)); const changedKeys = []; rangeKeys.forEach(item => { if (shouldSelected) { if (!selectedKeys.has(item)) { changedKeys.push(item); } selectedKeys.add(item); } else { selectedKeys.delete(item); changedKeys.push(item); } }); setPrevSelectedIndex(shouldSelected ? endIndex : null); return changedKeys; }, [prevSelectedIndex]); const updatePrevSelectedIndex = val => { setPrevSelectedIndex(val); }; return [multipleSelect, updatePrevSelectedIndex]; }