WebFeedPlugin.inc.php

<?php
 
import('lib.pkp.classes.plugins.GenericPlugin');
 
class WebFeedPlugin extends GenericPlugin {
   public function getDisplayName() {
      return __('plugins.generic.webfeed.displayName');
   }
 
   public function getDescription() {
      return __('plugins.generic.webfeed.description');
   }
 
   public function register($category, $path, $mainContextId = null) {
      if (!parent::register($category, $path, $mainContextId)) return false;
      if ($this->getEnabled($mainContextId)) {
         HookRegistry::register('TemplateManager::display',array($this, 'callbackAddLinks'));
         $this->import('WebFeedBlockPlugin');
         PluginRegistry::register('blocks', new WebFeedBlockPlugin($this), $this->getPluginPath());
 
         $this->import('WebFeedGatewayPlugin');
         PluginRegistry::register('gateways', new WebFeedGatewayPlugin($this), $this->getPluginPath());
      }
      return true;
   }
 
   public function getContextSpecificPluginSettingsFile() {
      return $this->getPluginPath() . '/settings.xml';
   }
 
   public function callbackAddLinks($hookName, $args) {
      // Only page requests will be handled
      $request = Application::get()->getRequest();
      if (!is_a($request->getRouter(), 'PKPPageRouter')) return false;
 
      $templateManager =& $args[0];
      $currentJournal = $templateManager->getTemplateVars('currentJournal');
      if (is_null($currentJournal)) {
         return;
      }
      $issueDao = DAORegistry::getDAO('IssueDAO'); /* @var $issueDao IssueDAO */
      $currentIssue = $issueDao->getCurrent($currentJournal->getId(), true);
 
      if (!$currentIssue) {
         return;
      }
 
      $displayPage = $this->getSetting($currentJournal->getId(), 'displayPage');
 
      // Define when the <link> elements should appear
      $contexts = 'frontend';
      if ($displayPage == 'homepage') {
         $contexts = array('frontend-index', 'frontend-issue');
      } elseif ($displayPage == 'issue') {
         $contexts = 'frontend-issue';
      }
 
      $templateManager->addHeader(
         'webFeedAtom+xml',
         '<link rel="alternate" type="application/atom+xml" href="' . $request->url(null, 'gateway', 'plugin', array('WebFeedGatewayPlugin', 'atom')) . '">',
         array(
            'contexts' => $contexts,
         )
      );
      $templateManager->addHeader(
         'webFeedRdf+xml',
         '<link rel="alternate" type="application/rdf+xml" href="'. $request->url(null, 'gateway', 'plugin', array('WebFeedGatewayPlugin', 'rss')) . '">',
         array(
            'contexts' => $contexts,
         )
      );
      $templateManager->addHeader(
         'webFeedRss+xml',
         '<link rel="alternate" type="application/rss+xml" href="'. $request->url(null, 'gateway', 'plugin', array('WebFeedGatewayPlugin', 'rss2')) . '">',
         array(
            'contexts' => $contexts,
         )
      );
 
      return false;
   }
 
   public function getActions($request, $verb) {
      $router = $request->getRouter();
      import('lib.pkp.classes.linkAction.request.AjaxModal');
      return array_merge(
         $this->getEnabled()?array(
            new LinkAction(
               'settings',
               new AjaxModal(
                  $router->url($request, null, null, 'manage', null, array('verb' => 'settings', 'plugin' => $this->getName(), 'category' => 'generic')),
                  $this->getDisplayName()
               ),
               __('manager.plugins.settings'),
               null
            ),
         ):array(),
         parent::getActions($request, $verb)
      );
   }
 
   public function manage($args, $request) {
      switch ($request->getUserVar('verb')) {
         case 'settings':
            AppLocale::requireComponents(LOCALE_COMPONENT_APP_COMMON,  LOCALE_COMPONENT_PKP_MANAGER);
            $this->import('WebFeedSettingsForm');
            $form = new WebFeedSettingsForm($this, $request->getContext()->getId());
 
            if ($request->getUserVar('save')) {
               $form->readInputData();
               if ($form->validate()) {
                  $form->execute();
                  $notificationManager = new NotificationManager();
                  $notificationManager->createTrivialNotification($request->getUser()->getId());
                  return new JSONMessage(true);
               }
            } else {
               $form->initData();
            }
            return new JSONMessage(true, $form->fetch($request));
      }
      return parent::manage($args, $request);
   }
}