AnnouncementFeedPlugin.inc.php

<?php
 
import('lib.pkp.classes.plugins.GenericPlugin');
 
class AnnouncementFeedPlugin extends GenericPlugin {
   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'));
         $this->import('AnnouncementFeedBlockPlugin');
         PluginRegistry::register('blocks', new AnnouncementFeedBlockPlugin($this), $this->getPluginPath());
 
         $this->import('AnnouncementFeedGatewayPlugin');
         PluginRegistry::register('gateways', new AnnouncementFeedGatewayPlugin($this), $this->getPluginPath());
      }
      return true;
   }
 
   public function getDisplayName() {
      return __('plugins.generic.announcementfeed.displayName');
   }
 
   public function getDescription() {
      return __('plugins.generic.announcementfeed.description');
   }
 
   public function callbackAddLinks($hookName, $args) {
      $request = Application::get()->getRequest();
      if ($this->getEnabled() && is_a($request->getRouter(), 'PKPPageRouter')) {
         $templateManager = $args[0];
         $currentJournal = $templateManager->getTemplateVars('currentJournal');
         $announcementsEnabled = $currentJournal ? $currentJournal->getData('enableAnnouncements') : false;
 
         if (!$announcementsEnabled) {
            return false;
         }
 
         $displayPage = $currentJournal ? $this->getSetting($currentJournal->getId(), 'displayPage') : null;
 
         // Define when the <link> elements should appear
         $contexts = 'frontend';
         if ($displayPage == 'homepage') {
            $contexts = array('frontend-index', 'frontend-announcement');
         } elseif ($displayPage == 'announcement') {
            $contexts = 'frontend-' . $displayPage;
         }
 
         $templateManager->addHeader(
            'announcementsAtom+xml',
            '<link rel="alternate" type="application/atom+xml" href="' . $request->url(null, 'gateway', 'plugin', array('AnnouncementFeedGatewayPlugin', 'atom')) . '">',
            array(
               'contexts' => $contexts,
            )
         );
         $templateManager->addHeader(
            'announcementsRdf+xml',
            '<link rel="alternate" type="application/rdf+xml" href="'. $request->url(null, 'gateway', 'plugin', array('AnnouncementFeedGatewayPlugin', 'rss')) . '">',
            array(
               'contexts' => $contexts,
            )
         );
         $templateManager->addHeader(
            'announcementsRss+xml',
            '<link rel="alternate" type="application/rss+xml" href="'. $request->url(null, 'gateway', 'plugin', array('AnnouncementFeedGatewayPlugin', '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':
            $context = $request->getContext();
 
            AppLocale::requireComponents(LOCALE_COMPONENT_APP_COMMON,  LOCALE_COMPONENT_PKP_MANAGER);
            $templateMgr = TemplateManager::getManager($request);
            $templateMgr->registerPlugin('function', 'plugin_url', array($this, 'smartyPluginUrl'));
 
            $this->import('AnnouncementFeedSettingsForm');
            $form = new AnnouncementFeedSettingsForm($this, $context->getId());
 
            if ($request->getUserVar('save')) {
               $form->readInputData();
               if ($form->validate()) {
                  $form->execute();
                  return new JSONMessage(true);
               }
            } else {
               $form->initData();
            }
            return new JSONMessage(true, $form->fetch($request));
      }
      return parent::manage($args, $request);
   }
}