/**
  * Is block currently hidden?
  * 
  * @return boolean
  */
 protected function isHidden()
 {
     if ($this->adv_md_hidden === null) {
         $this->adv_md_hidden = ilWikiPage::lookupAdvancedMetadataHidden($this->page_id);
     }
     return $this->adv_md_hidden;
 }
 /**
  * Fill data section
  */
 function fillDataSection()
 {
     global $ilCtrl, $lng, $ilAccess;
     $tpl = new ilTemplate("tpl.wiki_side_block_content.html", true, true, "Modules/Wiki");
     $wp = $this->getPageObject();
     // info
     $actions[] = array("txt" => $lng->txt("info_short"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "infoScreen"));
     // recent changes
     $actions[] = array("txt" => $lng->txt("wiki_recent_changes"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "recentChanges"));
     foreach ($actions as $a) {
         $tpl->setCurrentBlock("action");
         $tpl->setVariable("HREF", $a["href"]);
         $tpl->setVariable("TXT", $a["txt"]);
         $tpl->parseCurrentBlock();
         $tpl->touchBlock("item");
     }
     $actions = array();
     // all pages
     $actions[] = array("txt" => $lng->txt("wiki_all_pages"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "allPages"));
     // new pages
     $actions[] = array("txt" => $lng->txt("wiki_new_pages"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "newPages"));
     // popular pages
     $actions[] = array("txt" => $lng->txt("wiki_popular_pages"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "popularPages"));
     // orphaned pages
     $actions[] = array("txt" => $lng->txt("wiki_orphaned_pages"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "orphanedPages"));
     // page lists
     include_once "./Services/UIComponent/AdvancedSelectionList/classes/class.ilAdvancedSelectionListGUI.php";
     $list = new ilAdvancedSelectionListGUI();
     $list->setListTitle($lng->txt("wiki_page_lists"));
     $list->setStyle(ilAdvancedSelectionListGUI::STYLE_LINK);
     $list->setId("wiki_pglists");
     foreach ($actions as $a) {
         $list->addItem($a["txt"], "", $a["href"]);
     }
     $tpl->setCurrentBlock("plain");
     $tpl->setVariable("PLAIN", $list->getHTML());
     $tpl->parseCurrentBlock();
     $tpl->touchBlock("item");
     // page actions
     $list = new ilAdvancedSelectionListGUI();
     $list->setStyle(ilAdvancedSelectionListGUI::STYLE_LINK);
     $list->setListTitle($lng->txt("wiki_page_actions"));
     $list->setId("wiki_pgactions");
     if ($ilAccess->checkAccess("write", "", $_GET["ref_id"])) {
         // rating
         if (ilObjWiki::_lookupRating($this->getPageObject()->getWikiId())) {
             if (!$this->getPageObject()->getRating()) {
                 $list->addItem($lng->txt("wiki_activate_page_rating"), "", $ilCtrl->getLinkTargetByClass("ilwikipagegui", "activateWikiPageRating"));
             } else {
                 $list->addItem($lng->txt("wiki_deactivate_page_rating"), "", $ilCtrl->getLinkTargetByClass("ilwikipagegui", "deactivateWikiPageRating"));
             }
         }
         // unhide advmd?
         include_once "./Modules/Wiki/classes/class.ilWikiAdvMetaDataBlockGUI.php";
         if (ilWikiAdvMetaDataBlockGUI::isActive($this->getPageObject()->getWikiId()) && ilWikiPage::lookupAdvancedMetadataHidden($this->getPageObject()->getId())) {
             $list->addItem($lng->txt("wiki_unhide_meta_adv_records"), "", $ilCtrl->getLinkTargetByClass("ilwikipagegui", "unhideAdvancedMetaData"));
         }
     }
     if ($ilAccess->checkAccess("edit_content", "", $_GET["ref_id"]) && !$this->getPageObject()->getBlocked() || $ilAccess->checkAccess("write", "", $_GET["ref_id"])) {
         // rename
         $list->addItem($lng->txt("wiki_rename_page"), "", $ilCtrl->getLinkTargetByClass("ilwikipagegui", "renameWikiPage"));
     }
     if ($ilAccess->checkAccess("write", "", $_GET["ref_id"])) {
         // block/unblock
         if ($this->getPageObject()->getBlocked()) {
             $list->addItem($lng->txt("wiki_unblock_page"), "", $ilCtrl->getLinkTargetByClass("ilwikipagegui", "unblockWikiPage"));
         } else {
             $list->addItem($lng->txt("wiki_block_page"), "", $ilCtrl->getLinkTargetByClass("ilwikipagegui", "blockWikiPage"));
         }
         // delete page
         $st_page = ilObjWiki::_lookupStartPage($this->getPageObject()->getParentId());
         if ($st_page != $this->getPageObject()->getTitle()) {
             $list->addItem($lng->txt("wiki_delete_page"), "", $ilCtrl->getLinkTargetByClass("ilwikipagegui", "deleteWikiPageConfirmationScreen"));
         }
         include_once "Modules/Wiki/classes/class.ilWikiPageTemplate.php";
         $wpt = new ilWikiPageTemplate($this->getPageObject()->getParentId());
         if (!$wpt->isPageTemplate($this->getPageObject()->getId())) {
             $list->addItem($lng->txt("wiki_add_template"), "", $ilCtrl->getLinkTargetByClass("ilwikipagetemplategui", "addPageTemplateFromPageAction"));
         } else {
             $list->addItem($lng->txt("wiki_remove_template_status"), "", $ilCtrl->getLinkTargetByClass("ilwikipagetemplategui", "removePageTemplateFromPageAction"));
         }
     }
     if ($ilAccess->checkAccess("write", "", $_GET["ref_id"]) || $ilAccess->checkAccess("read", "", $_GET["ref_id"])) {
         $tpl->setCurrentBlock("plain");
         $tpl->setVariable("PLAIN", $list->getHTML());
         $tpl->parseCurrentBlock();
         $tpl->touchBlock("item");
     }
     // permissions
     //		if ($ilAccess->checkAccess('edit_permission', "", $_GET["ref_id"]))
     //		{
     //			$actions[] = array(
     //				"txt" => $lng->txt("perm_settings"),
     //				"href" => $ilCtrl->getLinkTargetByClass(array("ilobjwikigui", "ilpermissiongui"), "perm")
     //				);
     //		}
     $actions = array();
     // settings
     if ($ilAccess->checkAccess('write', "", $_GET["ref_id"])) {
         //			$actions[] = array(
         //				"txt" => $lng->txt("settings"),
         //				"href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "editSettings")
         //				);
         $actions[] = array("txt" => $lng->txt("wiki_contributors"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "listContributors"));
     }
     // manage
     if ($ilAccess->checkAccess('write', "", $_GET["ref_id"])) {
         $actions[] = array("txt" => $lng->txt("settings"), "href" => $ilCtrl->getLinkTargetByClass("ilobjwikigui", "editSettings"));
     } else {
         if ($ilAccess->checkAccess('statistics_read', "", $_GET["ref_id"])) {
             $actions[] = array("txt" => $lng->txt("statistics"), "href" => $ilCtrl->getLinkTargetByClass(array("ilobjwikigui", "ilwikistatgui"), "initial"));
         }
     }
     foreach ($actions as $a) {
         $tpl->setCurrentBlock("action");
         $tpl->setVariable("HREF", $a["href"]);
         $tpl->setVariable("TXT", $a["txt"]);
         $tpl->parseCurrentBlock();
         $tpl->touchBlock("item");
     }
     $this->setDataSection($tpl->get());
 }