name = Machine Name Modifier
description = Remove accents from generated machine name.
package = Custom modules
version = 1.0
core = 7.x

<?php
<?php
 
/**
 * @file
 * A module for removing accents from the automatically generated content type machine name.
 *
 * @see http://drupal.hu/forum/programok-által-használt-név/15726
 * @see http://drupal.hu/comment/64353#comment-64353
 *
 * @author Sk8erPeter
 */
 
/**
 * Implements hook_element_info_alter();
 *
 * Alter the element type information returned from modules.
 * A module may implement this hook in order to alter the element type defaults defined by a module.
 *
 * @see http://api.drupal.org/api/drupal/modules!system!system.api.php/function/hook_element_info_alter/7
 */
function machine_name_mod_element_info_alter(&$type) {
  foreach ($type['machine_name']['#process'] as $key => $process) {
    // Eltakaritjuk az eredeti form_machine_name processt, a sajatunkat fogjuk hasznalni
    if ($process == 'form_process_machine_name') {
      $type['machine_name']['#process'][$key] = 'machine_name_mod_process_machine_name';
    }
  }
}
 
/**
 * A custom machine_name element process function to change transliteration method js.
 */
function machine_name_mod_process_machine_name($element, &$form_state) {
  // Eloszor athajtjuk az eredeti form processen, nem kinyirni akartuk az eredeti process-t, csak belebabralni.
  $element = form_process_machine_name($element, $form_state);
 
  foreach ($element['#attached']['js'] as $key => $js) {
    if ($js == 'misc/machine-name.js') {
      $element['#attached']['js'][$key] = drupal_get_path('module', 'machine_name_mod') . '/js/machine-name.js';
    }
  }
 
  return $element;
}

// Modified by Sk8erPeter
 
(function ($) {
 
  /**
   * Attach the machine-readable name form element behavior.
   */
  Drupal.behaviors.machineName = {
    /**
     * Attaches the behavior.
     *
     * @param settings.machineName
     *   A list of elements to process, keyed by the HTML ID of the form element
     *   containing the human-readable value. Each element is an object defining
     *   the following properties:
     *   - target: The HTML ID of the machine name form element.
     *   - suffix: The HTML ID of a container to show the machine name preview in
     *     (usually a field suffix after the human-readable name form element).
     *   - label: The label to show for the machine name preview.
     *   - replace_pattern: A regular expression (without modifiers) matching
     *     disallowed characters in the machine name; e.g., '[^a-z0-9]+'.
     *   - replace: A character to replace disallowed characters with; e.g., '_'
     *     or '-'.
     */
    attach: function (context, settings) {
      var self = this;
      $.each(settings.machineName, function (source_id, options) {
        var $source = $(source_id, context).addClass('machine-name-source');
        var $target = $(options.target, context).addClass('machine-name-target');
        var $suffix = $(options.suffix, context);
        var $wrapper = $target.parents('.form-item:first');
        // All elements have to exist.
        if (!$source.length || !$target.length || !$suffix.length || !$wrapper.length) {
          return;
        }
        // Skip processing upon a form validation error on the machine name.
        if ($target.hasClass('error')) {
          return;
        }
        // Figure out the maximum length for the machine name.
        options.maxlength = $target.attr('maxlength');
        // Hide the form item container of the machine name form element.
        $wrapper.hide();
        // Determine the initial machine name value. Unless the machine name form
        // element is disabled or not empty, the initial default value is based on
        // the human-readable form element value.
        if ($target.is(':disabled') || $target.val() != '') {
          var machine = $target.val();
        }
        else {
          var machine = self.transliterate($source.val(), options);
        }
        // Append the machine name preview to the source field.
        var $preview = $('<span class="machine-name-value">' + machine + '</span>');
        $suffix.empty()
        .append(' ').append('<span class="machine-name-label">' + options.label + ':</span>')
        .append(' ').append($preview);
 
        // If the machine name cannot be edited, stop further processing.
        if ($target.is(':disabled')) {
          return;
        }
 
        // If it is editable, append an edit link.
        var $link = $('<span class="admin-link"><a href="#">' + Drupal.t('Edit') + '</a></span>')
        .click(function () {
          $wrapper.show();
          $target.focus();
          $suffix.hide();
          $source.unbind('.machineName');
          return false;
        });
        $suffix.append(' ').append($link);
 
        // Preview the machine name in realtime when the human-readable name
        // changes, but only if there is no machine name yet; i.e., only upon
        // initial creation, not when editing.
        if ($target.val() == '') {
          $source.bind('keyup.machineName change.machineName', function () {
            machine = self.transliterate($(this).val(), options);
            // Set the machine name to the transliterated value.
            if (machine != options.replace && machine != '') {
              $target.val(machine);
              $preview.text(machine);
              $suffix.show();
            }
            else {
              $suffix.hide();
              $target.val(machine);
              $preview.empty();
            }
          });
          // Initialize machine name preview.
          $source.keyup();
        }
      });
    },
 
    /**
     * Transliterate a human-readable name to a machine name.
     *
     * @param source
     *   A string to transliterate.
     * @param settings
     *   The machine name settings for the corresponding field, containing:
     *   - replace_pattern: A regular expression (without modifiers) matching
     *     disallowed characters in the machine name; e.g., '[^a-z0-9]+'.
     *   - replace: A character to replace disallowed characters with; e.g., '_'
     *     or '-'.
     *   - maxlength: The maximum length of the machine name.
     *
     * @return
     *   The transliterated source string.
     */
    transliterate: function (source, settings) {
      var rx = new RegExp(settings.replace_pattern, 'g');
      // MOD: we remove the accents
      source = this.remove_accents(source);
      //
      return source.toLowerCase().replace(rx, settings.replace).substr(0, settings.maxlength);
    },
 
    /**
     * Replace all occurrences of the search string with the replacement string
     *
     * @see http://4rapiddev.com/javascript/javascript-remove-vietnamese-accents/
     */
    str_replace: function (search, replace, str){
      var ra = replace instanceof Array, sa = str instanceof Array, l = (search = [].concat(search)).length, replace = [].concat(replace), i = (str = [].concat(str)).length;
      while(j = 0, i--)
        while(str[i] = str[i].split(search[j]).join(ra ? replace[j] || "" : replace[0]), ++j < l);
      return sa ? str : str[0];
    },
 
    /**
     * Remove the accents from a string
     *
     * @see http://drupal.hu/comment/63091#comment-63091
     * @see http://4rapiddev.com/javascript/javascript-remove-vietnamese-accents/
     *
     * @param source
     *   A string which we will remove the accents from.
     */
    remove_accents: function (source) {
      var accents_arr= new Array(
        "à","á","ạ","ả","ã","â","ầ","ấ","ậ","ẩ","ẫ","ă",
        "ằ","ắ","ặ","ẳ","ẵ","è","é","ẹ","ẻ","ẽ","ê","ề",
        "ế","ệ","ể","ễ",
        "ì","í","ị","ỉ","ĩ",
        "ò","ó","ọ","ỏ","õ","ô","ồ","ố","ộ","ổ","ỗ","ơ",
        "ờ","ớ","ợ","ở","ỡ", "ö","ő",
        "ù","ú","ụ","ủ","ũ","ư","ừ","ứ","ự","ử","ữ", "ü","ű",
        "ỳ","ý","ỵ","ỷ","ỹ",
        "đ",
        "À","Á","Ạ","Ả","Ã","Â","Ầ","Ấ","Ậ","Ẩ","Ẫ","Ă",
        "Ằ","Ắ","Ặ","Ẳ","Ẵ",
        "È","É","Ẹ","Ẻ","Ẽ","Ê","Ề","Ế","Ệ","Ể","Ễ",
        "Ì","Í","Ị","Ỉ","Ĩ",
        "Ò","Ó","Ọ","Ỏ","Õ","Ô","Ồ","Ố","Ộ","Ổ","Ỗ","Ơ",
        "Ờ","Ớ","Ợ","Ở","Ỡ", "Ö","Ő",
        "Ù","Ú","Ụ","Ủ","Ũ","Ư","Ừ","Ứ","Ự","Ử","Ữ", "Ü","Ű",
        "Ỳ","Ý","Ỵ","Ỷ","Ỹ",
        "Đ"
        ),
 
      no_accents_arr= new Array(
        "a","a","a","a","a","a","a","a","a","a","a",
        "a","a","a","a","a","a",
        "e","e","e","e","e","e","e","e","e","e","e",
        "i","i","i","i","i",
        "o","o","o","o","o","o","o","o","o","o","o","o",
        "o","o","o","o","o", "o","o",
        "u","u","u","u","u","u","u","u","u","u","u", "u","u",
        "y","y","y","y","y",
        "d",
        "A","A","A","A","A","A","A","A","A","A","A","A",
        "A","A","A","A","A",
        "E","E","E","E","E","E","E","E","E","E","E",
        "I","I","I","I","I",
        "O","O","O","O","O","O","O","O","O","O","O","O",
        "O","O","O","O","O", "O","O",
        "U","U","U","U","U","U","U","U","U","U","U", "U","U",
        "Y","Y","Y","Y","Y",
        "D"
        );
 
      return this.str_replace(accents_arr,no_accents_arr,source);
    }
  };
 
})(jQuery);