Generate crop automatically

crop-automatically.php

/**
 * This function will generate crop automatically.
 *
 * This makes it possible to generate the crops automatically
 * if the contributor forgets to do so.
 */
function _generate_crop_auto($form, $form_state) {
  // Retrieve crop list.
  $crop_list = $form['field_image']['widget'][0]['image_crop']['#crop_type_list'];
  foreach ($crop_list as $crop) {
    $crop_applied = $form_state->getValue('field_image')[0]['image_crop']['crop_wrapper'][$crop]['crop_container']['values']['crop_applied'];

    // If crop isn't apply manually by contributor.
    if ($crop_applied == '0') {
      $media = Media::load($form_state->getValue('id'));
      $cropType = CropType::load($crop);

      list ($width_ratio, $height_ratio) = explode(':', $cropType->aspect_ratio);

      // Define properties according to dimensions and ratio.
      if ($width_ratio > $height_ratio) {
        $properties['width'] = $media->field_image->width;
        $properties['height'] = $media->field_image->width * $height_ratio / $width_ratio;
        $properties['x'] = 0;
        $properties['y'] = ($media->field_image->height - $properties['height']) / 2;
      }
      else {
        $properties['height'] = $media->field_image->height;
        $properties['width'] = $media->field_image->height * $width_ratio / $height_ratio;
        $properties['x'] = ($media->field_image->width - $properties['width']) / 2;
        $properties['y'] = 0;
      }

      $field_value = [
        'file-uri' => $media->field_image->entity->uri->value,
        'file-id' => $media->field_image->entity->fid->value,
      ];

      $service = Drupal::service('image_widget_crop.manager');
      $service->applyCrop($properties, $field_value, $cropType);
    }
  }
}