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- <?php
- namespace Drupal\Core\Render\Element;
- use Drupal\Core\Form\FormStateInterface;
- use Drupal\Core\Render\Element;
- /**
- * Provides a form element for date selection.
- *
- * Properties:
- * - #default_value: An array with the keys: 'year', 'month', and 'day'.
- * Defaults to the current date if no value is supplied.
- * - #size: The size of the input element in characters.
- *
- * @code
- * $form['expiration'] = array(
- * '#type' => 'date',
- * '#title' => $this->t('Content expiration'),
- * '#default_value' => array('year' => 2020, 'month' => 2, 'day' => 15,)
- * );
- * @endcode
- *
- * @FormElement("date")
- */
- class Date extends FormElement {
- /**
- * {@inheritdoc}
- */
- public function getInfo() {
- $class = get_class($this);
- return [
- '#input' => TRUE,
- '#theme' => 'input__date',
- '#process' => [
- [$class, 'processAjaxForm'],
- [$class, 'processDate'],
- ],
- '#pre_render' => [[$class, 'preRenderDate']],
- '#theme_wrappers' => ['form_element'],
- '#attributes' => ['type' => 'date'],
- '#date_date_format' => 'Y-m-d',
- ];
- }
- /**
- * Processes a date form element.
- *
- * @param array $element
- * The form element to process. Properties used:
- * - #attributes: An associative array containing:
- * - type: The type of date field rendered.
- * - #date_date_format: The date format used in PHP formats.
- * @param \Drupal\Core\Form\FormStateInterface $form_state
- * The current state of the form.
- * @param array $complete_form
- * The complete form structure.
- *
- * @return array
- * The processed element.
- */
- public static function processDate(&$element, FormStateInterface $form_state, &$complete_form) {
- // Attach JS support for the date field, if we can determine which date
- // format should be used.
- if ($element['#attributes']['type'] == 'date' && !empty($element['#date_date_format'])) {
- $element['#attached']['library'][] = 'core/drupal.date';
- $element['#attributes']['data-drupal-date-format'] = [$element['#date_date_format']];
- }
- return $element;
- }
- /**
- * Adds form-specific attributes to a 'date' #type element.
- *
- * Supports HTML5 types of 'date', 'datetime', 'datetime-local', and 'time'.
- * Falls back to a plain textfield with JS datepicker support. Used as a
- * sub-element by the datetime element type.
- *
- * @param array $element
- * An associative array containing the properties of the element.
- * Properties used: #title, #value, #options, #description, #required,
- * #attributes, #id, #name, #type, #min, #max, #step, #value, #size. The
- * #name property will be sanitized before output. This is currently done by
- * initializing Drupal\Core\Template\Attribute with all the attributes.
- *
- * @return array
- * The $element with prepared variables ready for #theme 'input__date'.
- */
- public static function preRenderDate($element) {
- if (empty($element['#attributes']['type'])) {
- $element['#attributes']['type'] = 'date';
- }
- Element::setAttributes($element, ['id', 'name', 'type', 'min', 'max', 'step', 'value', 'size']);
- static::setAttributes($element, ['form-' . $element['#attributes']['type']]);
- return $element;
- }
- }
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