RTL LTR Direction Buttons

HTML

<div id="eg-rtl-ltr-buttons" class="text-small">
          <p>Custom buttons for rtl and ltr.</p>
        </div>

JAVASCRIPT

<script>
  $(function() {
    var changeDirection = function (dir, align) {
      this.saveSelectionByMarkers();
      var elements = this.getSelectionElements();
      for (var i = 0; i < elements.length; i++) {
        var element = elements[i];
        if (element != this.$element.get(0)) {
         $(element)
           .css('direction', dir)
           .css('text-align', align);
        }
      }

      this.restoreSelectionByMarkers();
      this.saveUndoStep();
    }

    $('div#eg-rtl-ltr-buttons').editable({
      inlineMode: false,
      // Set custom buttons with separator between them. Also include the name
      // of the buttons  defined in customButtons.
      buttons: ['undo', 'redo' , 'bold', 'sep', 'rightToLeft', 'leftToRight'],

      // Define custom buttons.
      customButtons: {
        // Right to left button.
        rightToLeft: {
          title: 'RTL',
          icon: {
            type: 'font',
            value: 'fa fa-long-arrow-left' // Font Awesome icon class fa fa-*
          },
          callback: function () {
            changeDirection.apply(this, ['rtl', 'right']);
          }
        },

        // Left to right button.
        leftToRight: {
          title: 'LTR',
          icon: {
            type: 'font',
            value: 'fa fa-long-arrow-right' // Font Awesome icon class fa fa-*
          },
          callback: function () {
            changeDirection.apply(this, ['ltr', 'left']);
          }
        }
      }
    })
  });
</script>