/**
* {@inheritdoc}
*/
public function preprocessElement(Element $element, Variables $variables)
{
$link = $element->getProperty('link');
$link += ['localized_options' => []];
$link['localized_options']['set_active_class'] = TRUE;
$icon = Bootstrap::glyphiconFromString($link['title']);
$options = isset($link['localized_options']) ? $link['localized_options'] : [];
if (isset($link['url'])) {
// Turn link into a mini-button and colorize based on title.
$class = Bootstrap::cssClassFromString($link['title'], 'default');
if (!isset($options['attributes']['class'])) {
$options['attributes']['class'] = [];
}
$string = is_string($options['attributes']['class']);
if ($string) {
$options['attributes']['class'] = explode(' ', $options['attributes']['class']);
}
$options['attributes']['class'][] = 'btn';
$options['attributes']['class'][] = 'btn-xs';
$options['attributes']['class'][] = 'btn-' . $class;
if ($string) {
$options['attributes']['class'] = implode(' ', $options['attributes']['class']);
}
$variables['link'] = ['#type' => 'link', '#title' => SafeMarkup::format(\Drupal::service('renderer')->render($icon) . '@text', ['@text' => $link['title']]), '#options' => $options, '#url' => $link['url']];
} else {
$variables['link'] = ['#type' => 'link', '#title' => $link['title'], '#options' => $options, '#url' => $link['url']];
}
}
/**
* Matches a Bootstrap Glyphicon based on a string value.
*
* @param string $string
* The string to match classes against.
* @param string $default
* The default icon to return if no match is found.
*
* @return string
* The Bootstrap icon matched against the value of $haystack or $default if
* no match could be made.
*
* @deprecated Will be removed in a future release.
*
* @code
* // Before.
* $icon = _bootstrap_iconize_text($string, $default);
*
* // After.
* use Drupal\bootstrap\Bootstrap;
* $icon = Bootstrap::glyphiconFromString($string, ['#markup' => $default]);
* @endcode
*
* @see \Drupal\bootstrap\Bootstrap::glyphiconFromString()
*/
function _bootstrap_iconize_text($string, $default = '')
{
Bootstrap::deprecated();
return Bootstrap::glyphiconFromString($string, ['#markup' => $default]);
}
/**
* Adds an icon to button element based on its text value.
*
* @param array $icon
* An icon render array.
*
* @return $this
*
* @see \Drupal\bootstrap\Bootstrap::glyphicon()
*/
public function setIcon(array $icon = NULL)
{
if ($this->isButton() && !Bootstrap::getTheme()->getSetting('button_iconize')) {
return $this;
}
$icon = isset($icon) ? $icon : Bootstrap::glyphiconFromString($this->getProperty('value'));
$this->setProperty('icon', $icon);
return $this;
}
