--- /dev/null
+<?php
+
+namespace Drupal\editor\Form;
+
+use Drupal\Component\Utility\Bytes;
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\editor\Entity\Editor;
+use Drupal\Core\Ajax\AjaxResponse;
+use Drupal\Core\Ajax\HtmlCommand;
+use Drupal\editor\Ajax\EditorDialogSave;
+use Drupal\Core\Ajax\CloseModalDialogCommand;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Drupal\Core\Entity\EntityStorageInterface;
+
+/**
+ * Provides an image dialog for text editors.
+ */
+class EditorImageDialog extends FormBase {
+
+ /**
+ * The file storage service.
+ *
+ * @var \Drupal\Core\Entity\EntityStorageInterface
+ */
+ protected $fileStorage;
+
+ /**
+ * Constructs a form object for image dialog.
+ *
+ * @param \Drupal\Core\Entity\EntityStorageInterface $file_storage
+ * The file storage service.
+ */
+ public function __construct(EntityStorageInterface $file_storage) {
+ $this->fileStorage = $file_storage;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function create(ContainerInterface $container) {
+ return new static(
+ $container->get('entity.manager')->getStorage('file')
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getFormId() {
+ return 'editor_image_dialog';
+ }
+
+ /**
+ * {@inheritdoc}
+ *
+ * @param \Drupal\editor\Entity\Editor $editor
+ * The text editor to which this dialog corresponds.
+ */
+ public function buildForm(array $form, FormStateInterface $form_state, Editor $editor = NULL) {
+ // This form is special, in that the default values do not come from the
+ // server side, but from the client side, from a text editor. We must cache
+ // this data in form state, because when the form is rebuilt, we will be
+ // receiving values from the form, instead of the values from the text
+ // editor. If we don't cache it, this data will be lost.
+ if (isset($form_state->getUserInput()['editor_object'])) {
+ // By convention, the data that the text editor sends to any dialog is in
+ // the 'editor_object' key. And the image dialog for text editors expects
+ // that data to be the attributes for an <img> element.
+ $image_element = $form_state->getUserInput()['editor_object'];
+ $form_state->set('image_element', $image_element);
+ $form_state->setCached(TRUE);
+ }
+ else {
+ // Retrieve the image element's attributes from form state.
+ $image_element = $form_state->get('image_element') ?: [];
+ }
+
+ $form['#tree'] = TRUE;
+ $form['#attached']['library'][] = 'editor/drupal.editor.dialog';
+ $form['#prefix'] = '<div id="editor-image-dialog-form">';
+ $form['#suffix'] = '</div>';
+
+ // Construct strings to use in the upload validators.
+ $image_upload = $editor->getImageUploadSettings();
+ if (!empty($image_upload['max_dimensions']['width']) || !empty($image_upload['max_dimensions']['height'])) {
+ $max_dimensions = $image_upload['max_dimensions']['width'] . 'x' . $image_upload['max_dimensions']['height'];
+ }
+ else {
+ $max_dimensions = 0;
+ }
+ $max_filesize = min(Bytes::toInt($image_upload['max_size']), file_upload_max_size());
+
+ $existing_file = isset($image_element['data-entity-uuid']) ? \Drupal::entityManager()->loadEntityByUuid('file', $image_element['data-entity-uuid']) : NULL;
+ $fid = $existing_file ? $existing_file->id() : NULL;
+
+ $form['fid'] = [
+ '#title' => $this->t('Image'),
+ '#type' => 'managed_file',
+ '#upload_location' => $image_upload['scheme'] . '://' . $image_upload['directory'],
+ '#default_value' => $fid ? [$fid] : NULL,
+ '#upload_validators' => [
+ 'file_validate_extensions' => ['gif png jpg jpeg'],
+ 'file_validate_size' => [$max_filesize],
+ 'file_validate_image_resolution' => [$max_dimensions],
+ ],
+ '#required' => TRUE,
+ ];
+
+ $form['attributes']['src'] = [
+ '#title' => $this->t('URL'),
+ '#type' => 'textfield',
+ '#default_value' => isset($image_element['src']) ? $image_element['src'] : '',
+ '#maxlength' => 2048,
+ '#required' => TRUE,
+ ];
+
+ // If the editor has image uploads enabled, show a managed_file form item,
+ // otherwise show a (file URL) text form item.
+ if ($image_upload['status']) {
+ $form['attributes']['src']['#access'] = FALSE;
+ $form['attributes']['src']['#required'] = FALSE;
+ }
+ else {
+ $form['fid']['#access'] = FALSE;
+ $form['fid']['#required'] = FALSE;
+ }
+
+ // The alt attribute is *required*, but we allow users to opt-in to empty
+ // alt attributes for the very rare edge cases where that is valid by
+ // specifying two double quotes as the alternative text in the dialog.
+ // However, that *is* stored as an empty alt attribute, so if we're editing
+ // an existing image (which means the src attribute is set) and its alt
+ // attribute is empty, then we show that as two double quotes in the dialog.
+ // @see https://www.drupal.org/node/2307647
+ $alt = isset($image_element['alt']) ? $image_element['alt'] : '';
+ if ($alt === '' && !empty($image_element['src'])) {
+ $alt = '""';
+ }
+ $form['attributes']['alt'] = [
+ '#title' => $this->t('Alternative text'),
+ '#placeholder' => $this->t('Short description for the visually impaired'),
+ '#type' => 'textfield',
+ '#required' => TRUE,
+ '#required_error' => $this->t('Alternative text is required.<br />(Only in rare cases should this be left empty. To create empty alternative text, enter <code>""</code> — two double quotes without any content).'),
+ '#default_value' => $alt,
+ '#maxlength' => 2048,
+ ];
+
+ // When Drupal core's filter_align is being used, the text editor may
+ // offer the ability to change the alignment.
+ if (isset($image_element['data-align']) && $editor->getFilterFormat()->filters('filter_align')->status) {
+ $form['align'] = [
+ '#title' => $this->t('Align'),
+ '#type' => 'radios',
+ '#options' => [
+ 'none' => $this->t('None'),
+ 'left' => $this->t('Left'),
+ 'center' => $this->t('Center'),
+ 'right' => $this->t('Right'),
+ ],
+ '#default_value' => $image_element['data-align'] === '' ? 'none' : $image_element['data-align'],
+ '#wrapper_attributes' => ['class' => ['container-inline']],
+ '#attributes' => ['class' => ['container-inline']],
+ '#parents' => ['attributes', 'data-align'],
+ ];
+ }
+
+ // When Drupal core's filter_caption is being used, the text editor may
+ // offer the ability to in-place edit the image's caption: show a toggle.
+ if (isset($image_element['hasCaption']) && $editor->getFilterFormat()->filters('filter_caption')->status) {
+ $form['caption'] = [
+ '#title' => $this->t('Caption'),
+ '#type' => 'checkbox',
+ '#default_value' => $image_element['hasCaption'] === 'true',
+ '#parents' => ['attributes', 'hasCaption'],
+ ];
+ }
+
+ $form['actions'] = [
+ '#type' => 'actions',
+ ];
+ $form['actions']['save_modal'] = [
+ '#type' => 'submit',
+ '#value' => $this->t('Save'),
+ // No regular submit-handler. This form only works via JavaScript.
+ '#submit' => [],
+ '#ajax' => [
+ 'callback' => '::submitForm',
+ 'event' => 'click',
+ ],
+ ];
+
+ return $form;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function submitForm(array &$form, FormStateInterface $form_state) {
+ $response = new AjaxResponse();
+
+ // Convert any uploaded files from the FID values to data-entity-uuid
+ // attributes and set data-entity-type to 'file'.
+ $fid = $form_state->getValue(['fid', 0]);
+ if (!empty($fid)) {
+ $file = $this->fileStorage->load($fid);
+ $file_url = file_create_url($file->getFileUri());
+ // Transform absolute image URLs to relative image URLs: prevent problems
+ // on multisite set-ups and prevent mixed content errors.
+ $file_url = file_url_transform_relative($file_url);
+ $form_state->setValue(['attributes', 'src'], $file_url);
+ $form_state->setValue(['attributes', 'data-entity-uuid'], $file->uuid());
+ $form_state->setValue(['attributes', 'data-entity-type'], 'file');
+ }
+
+ // When the alt attribute is set to two double quotes, transform it to the
+ // empty string: two double quotes signify "empty alt attribute". See above.
+ if (trim($form_state->getValue(['attributes', 'alt'])) === '""') {
+ $form_state->setValue(['attributes', 'alt'], '');
+ }
+
+ if ($form_state->getErrors()) {
+ unset($form['#prefix'], $form['#suffix']);
+ $form['status_messages'] = [
+ '#type' => 'status_messages',
+ '#weight' => -10,
+ ];
+ $response->addCommand(new HtmlCommand('#editor-image-dialog-form', $form));
+ }
+ else {
+ $response->addCommand(new EditorDialogSave($form_state->getValues()));
+ $response->addCommand(new CloseModalDialogCommand());
+ }
+
+ return $response;
+ }
+
+}
projects / yaffs-website / blobdiff