protected function AddFormBase::buildEntityFormElement in Drupal 8

Same name and namespace in other branches

1. 9 core/modules/media_library/src/Form/AddFormBase.php \Drupal\media_library\Form\AddFormBase::buildEntityFormElement()
2. 10 core/modules/media_library/src/Form/AddFormBase.php \Drupal\media_library\Form\AddFormBase::buildEntityFormElement()

Builds the sub-form for setting required fields on a new media item.

Parameters

\Drupal\media\MediaInterface $media: A new, unsaved media item.

array $form: The complete form.

\Drupal\Core\Form\FormStateInterface $form_state: The current form state.

int $delta: The delta of the media item.

Return value

array The element containing the required fields sub-form.

2 calls to AddFormBase::buildEntityFormElement()

AddFormBase::buildForm in core/modules/media_library/src/Form/AddFormBase.php

Form constructor.

FileUploadForm::buildEntityFormElement in core/modules/media_library/src/Form/FileUploadForm.php

Builds the sub-form for setting required fields on a new media item.

1 method overrides AddFormBase::buildEntityFormElement()

FileUploadForm::buildEntityFormElement in core/modules/media_library/src/Form/FileUploadForm.php

Builds the sub-form for setting required fields on a new media item.

File

core/modules/media_library/src/Form/AddFormBase.php, line 255

Class

AddFormBase

Provides a base class for creating media items from within the media library.

Namespace

Drupal\media_library\Form

Code

protected function buildEntityFormElement(MediaInterface $media, array $form, FormStateInterface $form_state, $delta) {

  // We need to make sure each button has a unique name attribute. The default
  // name for button elements is 'op'. If the name is not unique, the
  // triggering element is not set correctly and the wrong media item is
  // removed.
  // @see ::removeButtonSubmit()
  $parents = isset($form['#parents']) ? $form['#parents'] : [];
  $id_suffix = $parents ? '-' . implode('-', $parents) : '';
  $element = [
    '#wrapper_attributes' => [
      'aria-label' => $media
        ->getName(),
      // Add the tabindex '-1' to allow the focus to be shifted to the next
      // media item when an item is removed. We set focus to the container
      // because a media item does not necessarily have required fields and we
      // do not want to set focus to the remove button automatically.
      // @see ::updateFormCallback()
      'tabindex' => '-1',
      // Add a data attribute containing the delta to allow us to easily shift
      // the focus to a specific media item.
      // @see ::updateFormCallback()
      'data-media-library-added-delta' => $delta,
    ],
    'preview' => [
      '#type' => 'container',
      '#weight' => 10,
    ],
    'fields' => [
      '#type' => 'container',
      '#weight' => 20,
      // The '#parents' are set here because the entity form display needs it
      // to build the entity form fields.
      '#parents' => [
        'media',
        $delta,
        'fields',
      ],
    ],
    'remove_button' => [
      '#type' => 'submit',
      '#value' => $this
        ->t('Remove'),
      '#name' => 'media-' . $delta . '-remove-button' . $id_suffix,
      '#weight' => 30,
      '#attributes' => [
        'aria-label' => $this
          ->t('Remove @label', [
          '@label' => $media
            ->getName(),
        ]),
      ],
      '#ajax' => [
        'callback' => '::updateFormCallback',
        'wrapper' => 'media-library-add-form-wrapper',
        'message' => $this
          ->t('Removing @label.', [
          '@label' => $media
            ->getName(),
        ]),
      ],
      '#submit' => [
        '::removeButtonSubmit',
      ],
      // Ensure errors in other media items do not prevent removal.
      '#limit_validation_errors' => [],
    ],
  ];

  // @todo Make the image style configurable in
  //   https://www.drupal.org/node/2988223
  $source = $media
    ->getSource();
  $plugin_definition = $source
    ->getPluginDefinition();
  if ($thumbnail_uri = $source
    ->getMetadata($media, $plugin_definition['thumbnail_uri_metadata_attribute'])) {
    $element['preview']['thumbnail'] = [
      '#theme' => 'image_style',
      '#style_name' => 'media_library',
      '#uri' => $thumbnail_uri,
    ];
  }
  $form_display = EntityFormDisplay::collectRenderDisplay($media, 'media_library');

  // When the name is not added to the form as an editable field, output
  // the name as a fixed element to confirm the right file was uploaded.
  if (!$form_display
    ->getComponent('name')) {
    $element['fields']['name'] = [
      '#type' => 'item',
      '#title' => $this
        ->t('Name'),
      '#markup' => $media
        ->getName(),
    ];
  }
  $form_display
    ->buildForm($media, $element['fields'], $form_state);

  // Add source field name so that it can be identified in form alter and
  // widget alter hooks.
  $element['fields']['#source_field_name'] = $this
    ->getSourceFieldName($media->bundle->entity);

  // The revision log field is currently not configurable from the form
  // display, so hide it by changing the access.
  // @todo Make the revision_log_message field configurable in
  //   https://www.drupal.org/project/drupal/issues/2696555
  if (isset($element['fields']['revision_log_message'])) {
    $element['fields']['revision_log_message']['#access'] = FALSE;
  }
  return $element;
}