Club Drupal

(function ($) {

Drupal.behaviors.fieldPermissionsSettings = {

  attach: function (context) {

    // For user fields, we want the "Create own value for field X" permission

    // row to only be displayed when it's meaningful (i.e., when the "Display

    // on user registration form" checkbox is checked).

    var $user_register_form_checkbox, $required_field_checkbox, $create_permission_row;

    $user_register_form_checkbox = $('.form-item-instance-settings-user-register-form .form-checkbox', context);

    if ($user_register_form_checkbox.length) {

      // The "Required field" checkbox can cause the user registration checkbox

      // to change, so we need it also.

      $required_field_checkbox = $('.form-item-instance-required .form-checkbox', context);

      if ($required_field_checkbox.length) {

        // Get the permissions table row corresponding to the "Create own value

        // for field X" permission. The theme_user_admin_permissions() function

        // does not give us a good way to directly detect which row contains

        // the create permissions, so we have rely on the fact that it will be

        // the first row.

        $create_permission_row = $('table#permissions tbody tr', context).filter(':first');

        new Drupal.fieldPermissions.HideCreatePermission($user_register_form_checkbox, $required_field_checkbox, $create_permission_row);

      }

    }

  }

};

Drupal.fieldPermissions = {};

/**

 * Constructor for the HideCreatePermission object.

 *

 * This object hides and shows the "Create own value for field X" permission

 * for user fields when it is appropriate to do so, depending on the state of

 * the "Display on user registration form" and "Required field" checkboxes.

 */

Drupal.fieldPermissions.HideCreatePermission = function ($user_register_form_checkbox, $required_field_checkbox, $create_permission_row) {

  this.$user_register_form_checkbox = $user_register_form_checkbox;

  this.$create_permission_row = $create_permission_row;

  // Start off by making sure the create permission row has the correct

  // visibility.

  this.setCreatePermissionVisibility();

  // Set the row's visibility again whenever the user registration checkbox

  // changes, or when the required field checkbox (which controls it) changes.

  $user_register_form_checkbox.bind('change', $.proxy(this.setCreatePermissionVisibility, this));

  $required_field_checkbox.bind('change', $.proxy(this.setCreatePermissionVisibility, this));

};

/**

 * Set the correct visibility of the "Create own value for field X" permission.

 */

Drupal.fieldPermissions.HideCreatePermission.prototype.setCreatePermissionVisibility = function () {

  // Granting permissions for "Create own value for field X" only makes sense

  // when the field is configured to appear on the user registration form, so

  // only show the row in the permissions table then.

  if (this.$user_register_form_checkbox.is(':checked')) {

    this.$create_permission_row.show();

  }

  else {

    this.$create_permission_row.hide();

  }

};

})(jQuery);