on(eventType) {
    if (eventType == 'prerender' && this.preview) {
      return element => {
        if (this.field) {
          element = this.field
        }

        // if this is a preview, stop events bubbling up so the editor preview is clickable (and not draggable)
        $(element).on('mousedown', e => {
          e.stopPropagation()
        })
      }
    }
    return super.on(eventType)
  }
extend the default events to add a prerender for textareas
@param {string} eventType
@return {Function} prerender function