/**
* Generates the button dropdown.
* @return string the rendering result.
*/
protected function renderButton()
{
Html::addCssClass($this->options, 'btn');
$label = $this->label;
if ($this->encodeLabel) {
$label = Html::encode($label);
}
if ($this->split) {
$options = $this->options;
$this->options['data-toggle'] = 'dropdown';
Html::addCssClass($this->options, ['toggle' => 'dropdown-toggle']);
unset($this->options['id']);
$splitButton = Button::widget(['label' => '<span class="caret"></span>', 'encodeLabel' => false, 'options' => $this->options, 'view' => $this->getView()]);
} else {
$label .= ' <span class="caret"></span>';
$options = $this->options;
if (!isset($options['href']) && $this->tagName === 'a') {
$options['href'] = '#';
}
Html::addCssClass($options, ['toggle' => 'dropdown-toggle']);
$options['data-toggle'] = 'dropdown';
$splitButton = '';
}
return Button::widget(['tagName' => $this->tagName, 'label' => $label, 'options' => $options, 'encodeLabel' => false, 'view' => $this->getView()]) . "\n" . $splitButton;
}
