/**
* {@inheritdoc}
*/
protected function preprocessVariables(Variables $variables, $hook, array $info)
{
// Retrieve the ID, generating one if needed.
$id = $variables->getAttribute('id', Html::getUniqueId($variables->offsetGet('id', 'bootstrap-panel')));
unset($variables['id']);
// Handle collapsible state.
if ($variables['heading'] && $variables['collapsible']) {
// Retrieve the body ID attribute.
if ($body_id = $variables->getAttribute('id', "{$id}--content", 'body_attributes')) {
// Ensure the target is set.
if ($variables['target'] = $variables->offsetGet('target', "#{$body_id}")) {
// Set additional necessary attributes to the heading.
$variables->setAttributes(['aria-controls' => preg_replace('/^#/', '', $variables['target']), 'aria-expanded' => !$variables['collapsed'] ? 'true' : 'false', 'aria-pressed' => !$variables['collapsed'] ? 'true' : 'false', 'data-toggle' => 'collapse', 'role' => 'button'], 'heading_attributes');
}
}
}
// Ensure there is a valid panel state.
if (!$variables->offsetGet('panel_type')) {
$variables->offsetSet('panel_type', 'default');
}
// Convert the description variable.
$this->preprocessDescription($variables, $hook, $info);
// Ensure all attributes are proper objects.
$this->preprocessAttributes($variables, $hook, $info);
}
/**
* {@inheritdoc}
*/
public function preprocessElement(Element $element, Variables $variables)
{
$variables->addClass(['image-widget', 'js-form-managed-file', 'form-managed-file', 'clearfix']);
$data =& $variables->offsetGet('data', []);
foreach ($element->children() as $key => $child) {
// Modify the label to be a placeholder instead.
if ($key === 'alt') {
$child->setProperty('form_group', FALSE);
$placeholder = (string) $child->getAttribute('placeholder');
if (!$placeholder) {
$label = ['#theme' => 'form_element_label'];
$label += array_intersect_key($child->getArray(), array_flip(['#id', '#required', '#title', '#title_display']));
$child->setProperty('title_display', 'invisible');
$placeholder = trim(strip_tags(Element::create($label)->render()));
if ($child->getProperty('required')) {
$child->setProperty('description', t('@description (Required)', ['@description' => $child->getProperty('description')]));
}
}
if ($placeholder) {
$child->setAttribute('placeholder', $placeholder);
}
}
$data[$key] = $child->getArray();
}
}
/**
* Converts any set description variable into a traversable array.
*
* @param \Drupal\bootstrap\Utility\Variables $variables
* A variables object.
* @param string $hook
* The name of the theme hook.
* @param array $info
* The theme hook info array.
*
* @see https://www.drupal.org/node/2324025
*/
protected function preprocessDescription(Variables $variables, $hook, array $info)
{
if ($variables->offsetGet('description')) {
// Retrieve the description attributes.
$description_attributes = $variables->offsetGet('description_attributes', []);
// Remove standalone description attributes.
$variables->offsetUnset('description_attributes');
// Build the description attributes.
if ($id = $variables->getAttribute('id')) {
$variables->setAttribute('aria-describedby', "{$id}--description");
$description_attributes['id'] = "{$id}--description";
}
// Replace the description variable.
$variables->offsetSet('description', ['attributes' => new Attribute($description_attributes), 'content' => $variables['description'], 'position' => $variables->offsetGet('description_display', 'after')]);
}
}
/**
* {@inheritdoc}
*/
protected function preprocessVariables(Variables $variables, $hook, array $info)
{
// Retrieve the ID, generating one if needed.
$id = $variables->getAttribute('id', Html::getUniqueId($variables->offsetGet('id', 'bootstrap-carousel')));
unset($variables['id']);
// Build slides.
foreach ($variables->slides as $key => &$slide) {
if (!isset($slide['attributes'])) {
$slide['attributes'] = [];
}
$slide['attributes'] = new Attribute($slide['attributes']);
}
// Build controls.
if ($variables->controls) {
$left_icon = Bootstrap::glyphicon('chevron-left');
$right_icon = Bootstrap::glyphicon('chevron-right');
$url = Url::fromUserInput("#{$id}");
$variables->controls = ['left' => ['#type' => 'link', '#title' => new FormattableMarkup(Element::create($left_icon)->render() . '<span class="sr-only">@text</span>', ['@text' => t('Previous')]), '#url' => $url, '#attributes' => ['class' => ['left', 'carousel-control'], 'role' => 'button', 'data-slide' => 'prev']], 'right' => ['#type' => 'link', '#title' => new FormattableMarkup(Element::create($right_icon)->render() . '<span class="sr-only">@text</span>', ['@text' => t('Next')]), '#url' => $url, '#attributes' => ['class' => ['right', 'carousel-control'], 'role' => 'button', 'data-slide' => 'next']]];
}
// Build indicators.
if ($variables->indicators) {
$variables->indicators = ['#theme' => 'item_list__bootstrap_carousel_indicators', '#list_type' => 'ol', '#items' => array_keys($variables->slides), '#target' => "#{$id}", '#start_index' => $variables->start_index];
}
// Ensure all attributes are proper objects.
$this->preprocessAttributes($variables, $hook, $info);
}
/**
* {@inheritdoc}
*/
public function preprocessVariables(Variables $variables)
{
// Ensure a unique ID, generating one if needed.
$id = $variables->getAttribute('id', Html::getUniqueId($variables->offsetGet('id', 'progress-bar')));
$variables->setAttribute('id', $id);
unset($variables['id']);
// Preprocess attributes.
$this->preprocessAttributes();
}
/**
* {@inheritdoc}
*/
public function preprocessElement(Variables $variables, $hook, array $info)
{
$variables->addClass(['image-widget', 'js-form-managed-file', 'form-managed-file', 'clearfix']);
/** @var \Drupal\file\Entity\File $file */
foreach ($variables->element->getProperty('files') as $file) {
$variables->element->{'file_' . $file->id()}->filename->setProperty('suffix', ' <span class="file-size badge">' . format_size($file->getSize()) . '</span>');
}
$data =& $variables->offsetGet('data', []);
foreach ($variables->element->children() as $key => $child) {
$data[$key] = $child->getArray();
}
}
/**
* {@inheritdoc}
*/
protected function preprocessVariables(Variables $variables, $hook, array $info)
{
// Immediately log an error and return if Bootstrap modals are not enabled.
if (!$this->theme->getSetting('modal_enabled')) {
\Drupal::logger('bootstrap')->error(t('Bootstrap modals are not enabled.'));
return;
}
// Retrieve the ID, generating one if needed.
$id = $variables->getAttribute('id', Html::getUniqueId($variables->offsetGet('id', 'bootstrap-modal')));
$variables->setAttribute('id', $id);
unset($variables['id']);
if ($variables->title) {
$title_id = $variables->getAttribute('id', "{$id}--title", $variables::TITLE);
$variables->setAttribute('id', $title_id, $variables::TITLE);
$variables->setAttribute('aria-labelledby', $title_id);
}
// Use a provided modal size or retrieve the default theme setting.
$variables->size = $variables->size ?: $this->theme->getSetting('modal_size');
// Convert the description variable.
$this->preprocessDescription($variables, $hook, $info);
// Ensure all attributes are proper objects.
$this->preprocessAttributes($variables, $hook, $info);
}
