/** * {@inheritdoc} * * Add .btn and .btn-default classes to buttons * * @var string $title * @var array $options */ public function button($title, array $options = []) { $options += ['class' => $this->config('button_class')]; $is_btn_enabled = !isset($options['btnClass']) || isset($options['btnClass']) && $options['btnClass']; // always add .btn class if ($this->config('force_class_btn') && $is_btn_enabled) { $options = $this->addClass($options, 'btn'); } return parent::button($title, $options); }