/**
* {@inheritdoc}
*/
public static function processElement(Element $element, FormStateInterface $form_state, array &$complete_form)
{
$element->setProperty('title_display', 'invisible');
$element->setAttribute('placeholder', $element->getProperty('placeholder', $element->getProperty('title', t('Search'))));
if (!$element->hasProperty('description')) {
$element->setProperty('description', t('Enter the terms you wish to search for.'));
}
}
/**
* {@inheritdoc}
*/
public static function preRenderElement(Element $element)
{
// Injects the icon into the title (the only way this is possible).
if ($icon =& $element->getProperty('icon')) {
$title = $element->getProperty('title');
// Handle #icon_only.
if ($element->getProperty('icon_only')) {
if ($attribute_title = $element->getAttribute('title', '')) {
$title .= ' - ' . $attribute_title;
}
$element->setAttribute('title', $title)->addClass('icon-only')->setProperty('title', $icon);
if (Bootstrap::getTheme()->getSetting('tooltip_enabled')) {
$element->setAttribute('data-toggle', 'tooltip');
}
return;
}
// Handle #icon_position.
$position = $element->getProperty('icon_position', 'before');
// Render #icon and trim it (so it doesn't add underlines in whitespace).
$rendered_icon = trim(Element::create($icon)->render());
// Default position is before.
$markup = "{$rendered_icon}@title";
if ($position === 'after') {
$markup = "@title{$rendered_icon}";
}
// Replace the title and set an icon position class.
$element->setProperty('title', new FormattableMarkup($markup, ['@title' => $title]))->addClass("icon-{$position}");
}
}
/**
* {@inheritdoc}
*/
public static function processElement(Element $element, FormStateInterface $form_state, array &$complete_form)
{
$ajax_wrapper_id = $element->upload_button->getProperty('ajax')['wrapper'];
if ($prefix = $element->getProperty('prefix')) {
$prefix = preg_replace('/<div id="' . $ajax_wrapper_id . '">/', '<div id="' . $ajax_wrapper_id . '" class="form-group">', $prefix);
$element->setProperty('prefix', $prefix);
}
}
/**
* {@inheritdoc}
*/
public static function preRenderElement(Element $element)
{
$element['#attached']['library'][] = 'bootstrap/dropdown';
// Enable targeted theming of specific dropbuttons (e.g., 'operations' or
// 'operations__node').
if ($subtype = $element->getProperty('subtype')) {
$element->setProperty('theme', $element->getProperty('theme') . "__{$subtype}");
}
}
/**
* Processes elements that have input groups.
*
* @param \Drupal\bootstrap\Utility\Element $element
* The element object.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
* @param array $complete_form
* The complete form structure.
*/
protected static function processInputGroups(Element $element, FormStateInterface $form_state, array &$complete_form)
{
// Automatically inject the nearest button found after this element if
// #input_group_button exists.
if ($element->getProperty('input_group_button')) {
// Obtain the parent array to limit search.
$array_parents = $element->getProperty('array_parents', []);
// Remove the current element from the array.
array_pop($array_parents);
// Retrieve the parent element.
$parent = Element::create(NestedArray::getValue($complete_form, $array_parents), $form_state);
// Find the closest button.
if ($button = self::findButton($parent)) {
$element->appendProperty('field_suffix', $button->setIcon());
$button->setProperty('access', FALSE);
}
}
$input_group_attributes = ['class' => ['input-group-' . ($element->getProperty('input_group_button') ? 'btn' : 'addon')]];
if ($prefix = $element->getProperty('field_prefix')) {
$element->setProperty('field_prefix', ['#type' => 'html_tag', '#tag' => 'span', '#attributes' => $input_group_attributes, '#value' => Element::create($prefix)->render(), '#weight' => -1]);
}
if ($suffix = $element->getProperty('field_suffix')) {
$element->setProperty('field_suffix', ['#type' => 'html_tag', '#tag' => 'span', '#attributes' => $input_group_attributes, '#value' => Element::create($suffix)->render(), '#weight' => 1]);
}
}
