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   1  /**
   2   * @copyright   (C) 2016 Open Source Matters, Inc. <https://www.joomla.org>
   3   * @license     GNU General Public License version 2 or later; see LICENSE.txt
   4   */
   5  
   6  /**
   7   * Field user
   8   */
   9  jQuery(document).ready(function ($) {
  10  
  11      if (Joomla.getOptions('field-tag-custom')) {
  12  
  13          var options = Joomla.getOptions('field-tag-custom'),
  14              customTagPrefix = '#new#';
  15  
  16          // Method to add tags pressing enter
  17          $(options.selector + '_chosen input').keyup(function(event) {
  18  
  19              var tagOption;
  20  
  21              // Tag is greater than the minimum required chars and enter pressed
  22              if (this.value && this.value.length >= options.minTermLength && (event.which === 13 || event.which === 188)) {
  23  
  24                  // Search an highlighted result
  25                  var highlighted = $(options.selector + '_chosen').find('li.active-result.highlighted').first();
  26  
  27                  // Add the highlighted option
  28                  if (event.which === 13 && highlighted.text() !== '')
  29                  {
  30                      // Extra check. If we have added a custom tag with this text remove it
  31                      var customOptionValue = customTagPrefix + highlighted.text();
  32                      $(options.selector + ' option').filter(function () { return $(this).val() == customOptionValue; }).remove();
  33  
  34                      // Select the highlighted result
  35                      tagOption = $(options.selector + ' option').filter(function () { return $(this).html() == highlighted.text(); });
  36                      tagOption.attr('selected', 'selected');
  37                  }
  38                  // Add the custom tag option
  39                  else
  40                  {
  41                      var customTag = this.value;
  42  
  43                      // Extra check. Search if the custom tag already exists (typed faster than AJAX ready)
  44                      tagOption = $(options.selector + ' option').filter(function () { return $(this).html() == customTag; });
  45                      if (tagOption.text() !== '')
  46                      {
  47                          tagOption.attr('selected', 'selected');
  48                      }
  49                      else
  50                      {
  51                          var option = $('<option>');
  52                          option.text(this.value).val(customTagPrefix + this.value);
  53                          option.attr('selected','selected');
  54  
  55                          // Append the option and repopulate the chosen field
  56                          $(options.selector).append(option);
  57                      }
  58                  }
  59  
  60                  this.value = '';
  61                  $(options.selector).trigger('chosen:updated');
  62                  event.preventDefault();
  63              }
  64          });
  65      }
  66  });