handsontable/plugins/filters/utils.js

Handsontable is a JavaScript Spreadsheet Component available for React, Angular and Vue.

"use strict";

require("core-js/modules/es.array.from.js");

require("core-js/modules/es.array.index-of.js");

require("core-js/modules/es.array.iterator.js");

require("core-js/modules/es.array.sort.js");

require("core-js/modules/es.object.to-string.js");

require("core-js/modules/es.set.js");

require("core-js/modules/es.string.iterator.js");

require("core-js/modules/web.dom-collections.iterator.js");

exports.__esModule = true;
exports.sortComparison = sortComparison;
exports.toVisualValue = toVisualValue;
exports.createArrayAssertion = createArrayAssertion;
exports.toEmptyString = toEmptyString;
exports.unifyColumnValues = unifyColumnValues;
exports.intersectValues = intersectValues;

var _feature = require("../../helpers/feature");

var _array = require("../../helpers/array");

var sortCompare = (0, _feature.getComparisonFunction)();
/**
 * Comparison function for sorting purposes.
 *
 * @param {*} a The first value to compare.
 * @param {*} b The second value to compare.
 * @returns {number} Returns number from -1 to 1.
 */

function sortComparison(a, b) {
  if (typeof a === 'number' && typeof b === 'number') {
    return a - b;
  }

  return sortCompare(a, b);
}
/**
 * Convert raw value into visual value.
 *
 * @param {*} value The value to convert.
 * @param {string} defaultEmptyValue Default value for empty cells.
 * @returns {*}
 */


function toVisualValue(value, defaultEmptyValue) {
  var visualValue = value;

  if (visualValue === '') {
    visualValue = "(".concat(defaultEmptyValue, ")");
  }

  return visualValue;
}

var SUPPORT_SET_CONSTRUCTOR = new Set([1]).has(1);
var SUPPORT_FAST_DEDUPE = SUPPORT_SET_CONSTRUCTOR && typeof Array.from === 'function';
/**
 * Create an array assertion to compare if an element exists in that array (in a more efficient way than .indexOf).
 *
 * @param {Array} initialData Values to compare.
 * @returns {Function}
 */

function createArrayAssertion(initialData) {
  var dataset = initialData;

  if (SUPPORT_SET_CONSTRUCTOR) {
    dataset = new Set(dataset);
  }

  return function (value) {
    var result;

    if (SUPPORT_SET_CONSTRUCTOR) {
      result = dataset.has(value);
    } else {
      /* eslint-disable no-bitwise */
      result = !!~dataset.indexOf(value);
    }

    return result;
  };
}
/**
 * Convert empty-ish values like null and undefined to an empty string.
 *
 * @param {*} value Value to check.
 * @returns {string}
 */


function toEmptyString(value) {
  return value === null || value === void 0 ? '' : value;
}
/**
 * Unify column values (replace `null` and `undefined` values into empty string, unique values and sort them).
 *
 * @param {Array} values An array of values.
 * @returns {Array}
 */


function unifyColumnValues(values) {
  var unifiedValues = values;

  if (SUPPORT_FAST_DEDUPE) {
    unifiedValues = Array.from(new Set(unifiedValues));
  } else {
    unifiedValues = (0, _array.arrayUnique)(unifiedValues);
  }

  unifiedValues = unifiedValues.sort(function (a, b) {
    if (typeof a === 'number' && typeof b === 'number') {
      return a - b;
    }

    if (a === b) {
      return 0;
    }

    return a > b ? 1 : -1;
  });
  return unifiedValues;
}
/**
 * Intersect 'base' values with 'selected' values and return an array of object.
 *
 * @param {Array} base An array of base values.
 * @param {Array} selected An array of selected values.
 * @param {string} defaultEmptyValue Default value for empty cells.
 * @param {Function} [callback] A callback function which is invoked for every item in an array.
 * @returns {Array}
 */


function intersectValues(base, selected, defaultEmptyValue, callback) {
  var result = [];
  var same = base === selected;
  var selectedItemsAssertion;

  if (!same) {
    selectedItemsAssertion = createArrayAssertion(selected);
  }

  (0, _array.arrayEach)(base, function (value) {
    var checked = false;

    if (same || selectedItemsAssertion(value)) {
      checked = true;
    }

    var item = {
      checked: checked,
      value: value,
      visualValue: toVisualValue(value, defaultEmptyValue)
    };

    if (callback) {
      callback(item);
    }

    result.push(item);
  });
  return result;
}