PHP Element::isVisibleElement方法代码示例

 /**
  * Loops through and displays all form errors.
  *
  * @param array $form
  *   An associative array containing the structure of the form.
  * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   The current state of the form.
  */
 protected function displayErrorMessages(array $form, FormStateInterface $form_state)
 {
     $error_links = [];
     $errors = $form_state->getErrors();
     // Loop through all form errors and check if we need to display a link.
     foreach ($errors as $name => $error) {
         $form_element = FormElementHelper::getElementByName($name, $form);
         $title = FormElementHelper::getElementTitle($form_element);
         // Only show links to erroneous elements that are visible.
         $is_visible_element = Element::isVisibleElement($form_element);
         // Only show links for elements that have a title themselves or have
         // children with a title.
         $has_title = !empty($title);
         // Only show links for elements with an ID.
         $has_id = !empty($form_element['#id']);
         // Do not show links to elements with suppressed messages. Most often
         // their parent element is used for inline errors.
         if (!empty($form_element['#error_no_message'])) {
             unset($errors[$name]);
         } elseif ($is_visible_element && $has_title && $has_id) {
             $error_links[] = $this->l($title, Url::fromRoute('<none>', [], ['fragment' => $form_element['#id'], 'external' => TRUE]));
             unset($errors[$name]);
         }
     }
     // Set normal error messages for all remaining errors.
     foreach ($errors as $error) {
         $this->drupalSetMessage($error, 'error');
     }
     if (!empty($error_links)) {
         $render_array = [['#markup' => $this->formatPlural(count($error_links), '1 error has been found: ', '@count errors have been found: ')], ['#theme' => 'item_list', '#items' => $error_links, '#context' => ['list_style' => 'comma-list']]];
         $message = $this->renderer->renderPlain($render_array);
         $this->drupalSetMessage($message, 'error');
     }
 }

 /**
  * Loops through and displays all form errors.
  *
  * @param array $form
  *   An associative array containing the structure of the form.
  * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   The current state of the form.
  */
 protected function displayErrorMessages(array $form, FormStateInterface $form_state)
 {
     $error_links = [];
     $errors = $form_state->getErrors();
     // Loop through all form errors and check if we need to display a link.
     foreach ($errors as $name => $error) {
         $form_element = FormElementHelper::getElementByName($name, $form);
         $title = FormElementHelper::getElementTitle($form_element);
         // Only show links to erroneous elements that are visible.
         $is_visible_element = Element::isVisibleElement($form_element);
         // Only show links for elements that have a title themselves or have
         // children with a title.
         $has_title = !empty($title);
         // Only show links for elements with an ID.
         $has_id = !empty($form_element['#id']);
         // Do not show links to elements with suppressed messages. Most often
         // their parent element is used for inline errors.
         if (!empty($form_element['#error_no_message'])) {
             unset($errors[$name]);
         } elseif ($is_visible_element && $has_title && $has_id) {
             // We need to pass this through SafeMarkup::escape() so
             // drupal_set_message() does not encode the links.
             $error_links[] = SafeMarkup::escape($this->l($title, Url::fromRoute('<none>', [], ['fragment' => $form_element['#id'], 'external' => TRUE])));
             unset($errors[$name]);
         }
     }
     // Set normal error messages for all remaining errors.
     foreach ($errors as $error) {
         $this->drupalSetMessage($error, 'error');
     }
     if (!empty($error_links)) {
         $message = $this->formatPlural(count($error_links), '1 error has been found: !errors', '@count errors have been found: !errors', ['!errors' => SafeMarkup::set(implode(', ', $error_links))]);
         $this->drupalSetMessage($message, 'error');
     }
 }

 /**
  * {@inheritdoc}
  */
 public function flagErrors(FieldItemListInterface $items, ConstraintViolationListInterface $violations, array $form, FormStateInterface $form_state)
 {
     $field_name = $this->fieldDefinition->getName();
     $field_state = static::getWidgetState($form['#parents'], $field_name, $form_state);
     if ($violations->count()) {
         // Locate the correct element in the form.
         $element = NestedArray::getValue($form_state->getCompleteForm(), $field_state['array_parents']);
         // Do not report entity-level validation errors if Form API errors have
         // already been reported for the field.
         // @todo Field validation should not be run on fields with FAPI errors to
         //   begin with. See https://www.drupal.org/node/2070429.
         $element_path = implode('][', $element['#parents']);
         if ($reported_errors = $form_state->getErrors()) {
             foreach (array_keys($reported_errors) as $error_path) {
                 if (strpos($error_path, $element_path) === 0) {
                     return;
                 }
             }
         }
         // Only set errors if the element is visible.
         if (Element::isVisibleElement($element)) {
             $handles_multiple = $this->handlesMultipleValues();
             $violations_by_delta = array();
             foreach ($violations as $violation) {
                 // Separate violations by delta.
                 $property_path = explode('.', $violation->getPropertyPath());
                 $delta = array_shift($property_path);
                 $violations_by_delta[$delta][] = $violation;
                 $violation->arrayPropertyPath = $property_path;
             }
             /** @var \Symfony\Component\Validator\ConstraintViolationInterface[] $delta_violations */
             foreach ($violations_by_delta as $delta => $delta_violations) {
                 // Pass violations to the main element:
                 // - if this is a multiple-value widget,
                 // - or if the violations are at the ItemList level.
                 if ($handles_multiple || !is_numeric($delta)) {
                     $delta_element = $element;
                 } else {
                     $original_delta = $field_state['original_deltas'][$delta];
                     $delta_element = $element[$original_delta];
                 }
                 foreach ($delta_violations as $violation) {
                     // @todo: Pass $violation->arrayPropertyPath as property path.
                     $error_element = $this->errorElement($delta_element, $violation, $form, $form_state);
                     if ($error_element !== FALSE) {
                         $form_state->setError($error_element, $violation->getMessage());
                     }
                 }
             }
         }
     }
 }

 /**
  * Determines if an element is visible.
  *
  * @return bool
  *   TRUE if the element is visible, otherwise FALSE.
  */
 public function isVisible()
 {
     return \Drupal\Core\Render\Element::isVisibleElement($this->array);
 }

 /**
  * Processes the subdivision elements, adding predefined values where found.
  *
  * @param array $element
  *   The existing form element array.
  * @param array $values
  *   An array of address values, keyed by property name.
  * @param \Drupal\address\Entity\AddressFormatInterface $address_format
  *   The address format.
  *
  * @return array
  *   The processed form element array.
  */
 protected function processSubdivisionElements(array $element, array $values, AddressFormatInterface $address_format)
 {
     $depth = $this->subdivisionRepository->getDepth($values['country_code']);
     if ($depth === 0) {
         // No predefined data found.
         return $element;
     }
     $subdivision_properties = [];
     foreach ($address_format->getUsedSubdivisionFields() as $field) {
         $subdivision_properties[] = FieldHelper::getPropertyName($field);
     }
     // Load and insert the subdivisions for each parent id.
     $currentDepth = 1;
     foreach ($subdivision_properties as $index => $property) {
         if (!isset($element[$property]) || !Element::isVisibleElement($element[$property])) {
             break;
         }
         $parent_property = $index ? $subdivision_properties[$index - 1] : NULL;
         if ($parent_property && empty($values[$parent_property])) {
             break;
         }
         $parent_id = $parent_property ? $values[$parent_property] : NULL;
         $subdivisions = $this->subdivisionRepository->getList($values['country_code'], $parent_id);
         if (empty($subdivisions)) {
             break;
         }
         $element[$property]['#type'] = 'select';
         $element[$property]['#options'] = $subdivisions;
         $element[$property]['#empty_value'] = '';
         unset($element[$property]['#size']);
         if ($currentDepth < $depth) {
             $element[$property]['#ajax'] = ['callback' => [get_class($this), 'ajaxRefresh'], 'wrapper' => $element['#wrapper_id']];
         }
         $currentDepth++;
     }
     return $element;
 }