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

dtable common utils

'use strict';

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

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

/**
 * Sort single-select
 * @param {string} leftOptionId the id of option
 * @param {string} rightOptionId
 * @param {string} sort_type e.g. 'up' | 'down'
 * @param {object} option_id_index_map e.g. { [option.id]: 0, ... }
 * @returns number
 */
var sortSingleSelect = function sortSingleSelect(leftOptionId, rightOptionId, _ref) {
  var sort_type = _ref.sort_type,
    option_id_index_map = _ref.option_id_index_map;
  var currentOptionIdIndex = option_id_index_map[leftOptionId];
  var nextOptionIdIndex = option_id_index_map[rightOptionId];
  var emptyLeftOptionId = !currentOptionIdIndex && currentOptionIdIndex !== 0;
  var emptyRightOptionId = !nextOptionIdIndex && nextOptionIdIndex !== 0;
  if (emptyLeftOptionId && emptyRightOptionId) {
    return 0;
  }
  if (emptyLeftOptionId) {
    return 1;
  }
  if (emptyRightOptionId) {
    return -1;
  }
  if (currentOptionIdIndex > nextOptionIdIndex) {
    return sort_type === sort.SORT_TYPE.UP ? 1 : -1;
  }
  if (currentOptionIdIndex < nextOptionIdIndex) {
    return sort_type === sort.SORT_TYPE.UP ? -1 : 1;
  }
  return 0;
};

exports.sortSingleSelect = sortSingleSelect;