handsontable
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Handsontable is a JavaScript Data Grid available for React, Angular and Vue.
32 lines • 1.53 kB
JavaScript
import { getCompareFunctionFactory, DO_NOT_SWAP } from "../columnSorting/sortService/index.mjs";
/**
* Sort comparator handled by conventional sort algorithm.
*
* @param {Array} sortingOrders Sort orders (`asc` for ascending, `desc` for descending).
* @param {Array} columnMetas Column meta objects.
* @returns {Function}
*/
export function rootComparator(sortingOrders, columnMetas) {
return function (rowIndexWithValues, nextRowIndexWithValues) {
// We sort array of arrays. Single array is in form [rowIndex, ...values].
// We compare just values, stored at second index of array.
const [, ...values] = rowIndexWithValues;
const [, ...nextValues] = nextRowIndexWithValues;
return function getCompareResult(column) {
const sortingOrder = sortingOrders[column];
const columnMeta = columnMetas[column];
const value = values[column];
const nextValue = nextValues[column];
const pluginSettings = columnMeta.multiColumnSorting;
const compareFunctionFactory = pluginSettings.compareFunctionFactory ? pluginSettings.compareFunctionFactory : getCompareFunctionFactory(columnMeta.type);
const compareResult = compareFunctionFactory(sortingOrder, columnMeta, pluginSettings)(value, nextValue);
if (compareResult === DO_NOT_SWAP) {
const nextSortedColumn = column + 1;
if (typeof columnMetas[nextSortedColumn] !== 'undefined') {
return getCompareResult(nextSortedColumn);
}
}
return compareResult;
}(0);
};
}