PdfJsViewerPlugin.inc.php

<?php
 
import('lib.pkp.classes.plugins.GenericPlugin');
 
class PdfJsViewerPlugin extends GenericPlugin {
   function register($category, $path, $mainContextId = null) {
      if (parent::register($category, $path, $mainContextId)) {
         if ($this->getEnabled($mainContextId)) {
            // For OPS
            HookRegistry::register('PreprintHandler::view::galley', array($this, 'submissionCallback'), HOOK_SEQUENCE_LAST);
            // For OJS
            HookRegistry::register('ArticleHandler::view::galley', array($this, 'submissionCallback'), HOOK_SEQUENCE_LAST);
            HookRegistry::register('IssueHandler::view::galley', array($this, 'issueCallback'), HOOK_SEQUENCE_LAST);
            AppLocale::requireComponents(LOCALE_COMPONENT_APP_COMMON);
         }
         return true;
      }
      return false;
   }
 
   function getContextSpecificPluginSettingsFile() {
      return $this->getPluginPath() . '/settings.xml';
   }
 
   function getDisplayName() {
      return __('plugins.generic.pdfJsViewer.name');
   }
 
   function getDescription() {
      return __('plugins.generic.pdfJsViewer.description');
   }
 
   function submissionCallback($hookName, $args) {
      $request =& $args[0];
      $application = Application::get();
      switch ($application->getName()) {
         case 'ojs2':
            $issue =& $args[1];
            $galley =& $args[2];
            $submission =& $args[3];
            $submissionNoun = 'article';
            break;
         case 'ops':
            $galley =& $args[1];
            $submission =& $args[2];
            $submissionNoun = 'preprint';
            $issue = null;
            break;
         default: throw new Exception('Unknown application!');
      }
 
      if ($galley && $galley->getFileType() == 'application/pdf') {
         $galleyPublication = null;
         foreach ($submission->getData('publications') as $publication) {
            if ($publication->getId() === $galley->getData('publicationId')) {
               $galleyPublication = $publication;
               break;
            }
         }
         $templateMgr = TemplateManager::getManager($request);
         $templateMgr->assign(array(
            'displayTemplateResource' => $this->getTemplateResource('display.tpl'),
            'pluginUrl' => $request->getBaseUrl() . '/' . $this->getPluginPath(),
            'galleyFile' => $galley->getFile(),
            'issue' => $issue,
            'submission' => $submission,
            'submissionNoun' => $submissionNoun,
            'bestId' => $submission->getBestId(),
            'galley' => $galley,
            'jQueryUrl' => $this->_getJQueryUrl($request),
            'currentVersionString' => $application->getCurrentVersion()->getVersionString(false),
            'isLatestPublication' => $submission->getData('currentPublicationId') === $galley->getData('publicationId'),
            'galleyPublication' => $galleyPublication,
         ));
         $templateMgr->display($this->getTemplateResource('submissionGalley.tpl'));
         return true;
      }
 
      return false;
   }
 
   function issueCallback($hookName, $args) {
      $request =& $args[0];
      $issue =& $args[1];
      $galley =& $args[2];
 
      $templateMgr = TemplateManager::getManager($request);
      if ($galley && $galley->getFileType() == 'application/pdf') {
         $application = Application::get();
         $templateMgr->assign(array(
            'displayTemplateResource' => $this->getTemplateResource('display.tpl'),
            'pluginUrl' => $request->getBaseUrl() . '/' . $this->getPluginPath(),
            'galleyFile' => $galley->getFile(),
            'issue' => $issue,
            'galley' => $galley,
            'jQueryUrl' => $this->_getJQueryUrl($request),
            'currentVersionString' => $application->getCurrentVersion()->getVersionString(false),
            'isLatestPublication' => true,
         ));
         $templateMgr->display($this->getTemplateResource('issueGalley.tpl'));
         return true;
      }
 
      return false;
   }
 
   private function _getJQueryUrl($request) {
      $min = Config::getVar('general', 'enable_minified') ? '.min' : '';
      if (Config::getVar('general', 'enable_cdn')) {
         return '//ajax.googleapis.com/ajax/libs/jquery/' . CDN_JQUERY_VERSION . '/jquery' . $min . '.js';
      } else {
         return $request->getBaseUrl() . '/lib/pkp/lib/vendor/components/jquery/jquery' . $min . '.js';
      }
   }
}