controllers/grid/settings/SetupGridHandler.inc.php

<?php

import('lib.pkp.classes.controllers.grid.GridHandler');

class SetupGridHandler extends GridHandler {
   function SetupGridHandler() {
      parent::GridHandler();
      $this->addRoleAssignment(
         array(ROLE_ID_PRESS_MANAGER),
         array('uploadImage')
      );
   }

   function initialize(&$request) {
      parent::initialize($request);

      AppLocale::requireComponents(LOCALE_COMPONENT_OMP_MANAGER);
   }

   function authorize(&$request, $args, $roleAssignments) {
      import('classes.security.authorization.OmpPressAccessPolicy');
      $this->addPolicy(new OmpPressAccessPolicy($request, $roleAssignments));
      return parent::authorize($request, $args, $roleAssignments);
   }

   function uploadImage($args, &$request) {
      $router =& $request->getRouter();
      $context = $request->getContext();
      $user =& $request->getUser();

      import('classes.file.TemporaryFileManager');
      $temporaryFileManager = new TemporaryFileManager();
      $temporaryFile = $temporaryFileManager->handleUpload('uploadedFile', $user->getId());
      if ($temporaryFile) {
         $json = new JSONMessage(true);
         $json->setAdditionalAttributes(array(
               'temporaryFileId' => $temporaryFile->getId()
         ));
      } else {
         $json = new JSONMessage(false, __('common.uploadFailed'));
      }

      return $json->getString();
   }
}

?>