/**
* Automatically inject bootstrap classes to the link
* @return string
*/
public function frontend()
{
$html = parent::frontend();
$matches = array();
if (preg_match('/^<a.*?class=[\'"](.*?)[\'"]/i', $html, $matches)) {
$classes = explode(' ', $matches[1]);
} else {
$classes = array();
}
// base button class
if (!in_array('btn', $classes)) {
$classes[] = 'btn';
}
// button style
if (isset($this->data['buttonStyle'])) {
$styleClass = 'btn-' . strtolower($this->data['buttonStyle']);
if (!in_array($styleClass, $classes)) {
$classes[] = $styleClass;
}
}
// button size
if (isset($this->data['buttonSize']) && array_key_exists($this->data['buttonSize'], $this->sizes)) {
$sizeClass = $this->sizes[$this->data['buttonSize']];
if (!empty($sizeClass) && !in_array($sizeClass, $classes)) {
$classes[] = $sizeClass;
}
}
// button active
if (isset($this->data['buttonActive']) && (bool) $this->data['buttonActive'] && !in_array('active', $classes)) {
$classes[] = 'active';
}
// button disabled
if (isset($this->data['buttonDisabled']) && (bool) $this->data['buttonDisabled'] && !in_array('disabled', $classes)) {
$classes[] = 'disabled';
}
// make the replacement
$classAttr = implode(' ', $classes);
if (empty($matches)) {
$html = str_replace('<a ', '<a class="' . $classAttr . '" ', $html);
} else {
$html = preg_replace('/^<a(.*?)class=[\'"](.*?)[\'"]/i', "<a\$1class=\"{$classAttr}\"", $html);
}
return $html;
}
