dtable-utils/lib/sort/sort-column/multiple-select.js

dtable common utils

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var core = require('../core.js');
var sort = require('../../constants/sort.js');

/**
 * Sort multiple-select
 * @param {array} leftOptionIds the ids of options
 * @param {array} rightOptionIds
 * @param {string} sort_type e.g. 'up' | 'down'
 * @param {object} option_id_index_map e.g. { [option.id]: 0, ... }
 * @returns number
 */
var sortMultipleSelect = function sortMultipleSelect(leftOptionIds, rightOptionIds, _ref) {
  var sort_type = _ref.sort_type,
    option_id_index_map = _ref.option_id_index_map;
  var emptyLeftOptionIds = !leftOptionIds || leftOptionIds.length === 0;
  var emptyRightOptionIds = !rightOptionIds || rightOptionIds.length === 0;
  if (emptyLeftOptionIds && emptyRightOptionIds) return 0;
  if (emptyLeftOptionIds) return 1;
  if (emptyRightOptionIds) return -1;
  var leftOptionIndexes = core.getMultipleIndexesOrderbyOptions(leftOptionIds, option_id_index_map);
  var rightOptionIndexes = core.getMultipleIndexesOrderbyOptions(rightOptionIds, option_id_index_map);
  var leftOptionsLen = leftOptionIndexes.length;
  var rightOptionsLen = rightOptionIndexes.length;

  // current multiple select equal to next multiple select.
  if (leftOptionsLen === rightOptionsLen && (leftOptionsLen === 0 || leftOptionIndexes.join('') === rightOptionIndexes.join(''))) {
    return 0;
  }
  var len = Math.min(leftOptionsLen, rightOptionsLen);
  for (var i = 0; i < len; i++) {
    if (leftOptionIndexes[i] > rightOptionIndexes[i]) {
      return sort_type === sort.SORT_TYPE.UP ? 1 : -1;
    }
    if (leftOptionIndexes[i] < rightOptionIndexes[i]) {
      return sort_type === sort.SORT_TYPE.UP ? -1 : 1;
    }
  }
  if (leftOptionsLen > rightOptionsLen) {
    return sort_type === sort.SORT_TYPE.UP ? 1 : -1;
  }
  return sort_type === sort.SORT_TYPE.UP ? -1 : 1;
};

exports.getMultipleIndexesOrderbyOptions = core.getMultipleIndexesOrderbyOptions;
exports.sortMultipleSelect = sortMultipleSelect;