datepicker.js

/**
 * DatePicker widget using Prototype and Scriptaculous.
 * (c) 2007 Mathieu Jondet <mathieu@eulerian.com>
 * Eulerian Technologies
 *
 * DatePicker is freely distributable under the same terms as Prototype.
 *
 *  Modified 10.06.2008
 * by Manu <manu@bytefresser.de>
 *
 *  Modified 15.10.2018
 * by FusionDirectory Project
 *  -> Add defaultDate/_default_date
 *
 */

/**
 * DatePickerFormatter class for matching and stringifying dates.
 *
 * By Arturas Slajus <x11@arturaz.net>.
 */
var DatePickerFormatter = Class.create();

DatePickerFormatter.prototype = {
  /**
   * Create a DatePickerFormatter.
   *
   * format: specify a format by passing 3 value array consisting of
   *   "yyyy", "mm", "dd". Default: ["yyyy", "mm", "dd"].
   *
   * separator: string for splitting the values. Default: "-".
   *
   * Use it like this:
   *   var df = new DatePickerFormatter(["dd", "mm", "yyyy"], "/");
   *   df.current_date();
   *   df.match("7/7/2007");
   */
  initialize: function(format, separator)
  {
    if (Object.isUndefined(format))
      format = ["yyyy", "mm", "dd"];
    if (Object.isUndefined(separator))
      separator = "-";

    this._format        = format;
    this.separator        = separator;

    this._format_year_index  = format.indexOf("yyyy");
    this._format_month_index = format.indexOf("mm");
    this._format_day_index   = format.indexOf("dd");

    this._year_regexp     = /^\d{4}$/;
    this._month_regexp    = /^0\d|1[012]|\d$/;
    this._day_regexp      = /^0\d|[12]\d|3[01]|\d$/;
  },

  /**
  * Match a string against date format.
  * Returns: [year, month, day]
  */
  match: function(str)
  {
    var d = str.split(this.separator);

    if (d.length < 3) {
      return false;
    }

    var year = d[this._format_year_index].match(this._year_regexp);
    if (year) {