FieldUploadImage.inc.php

<?php
namespace PKP\components\forms;
class FieldUploadImage extends FieldUpload {
   public $component = 'field-upload-image';
 
   public $baseUrl = '';
 
   public $altTextLabel = '';
 
   public $altTextDescription = '';
 
   public $thumbnailDescription = '';
 
   public function __construct($name, $args = []) {
      parent::__construct($name, $args);
   }
 
   public function getConfig() {
      if (!array_key_exists('acceptedFiles', $this->options)) {
         $this->options['acceptedFiles'] = 'image/*';
      }
      $config = parent::getConfig();
      $config['baseUrl'] = $this->baseUrl;
 
      $config['thumbnailDescription'] = __('common.upload.thumbnailPreview');
      $config['altTextLabel'] = __('common.altText');
      $config['altTextDescription'] = __('common.altTextInstructions');
 
      return $config;
   }
 
   public function getEmptyValue() {
      return null;
   }
}