class.ilGlossaryPresentationGUI.php

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<?php

/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once("./Services/Object/classes/class.ilObjectGUI.php");
require_once("./Modules/Glossary/classes/class.ilObjGlossary.php");
require_once("./Modules/Glossary/classes/class.ilGlossaryTermGUI.php");
require_once("./Modules/Glossary/classes/class.ilGlossaryDefinition.php");
require_once("./Modules/Glossary/classes/class.ilTermDefinitionEditorGUI.php");
require_once("./Services/COPage/classes/class.ilPCParagraph.php");

class ilGlossaryPresentationGUI
{
        var $admin_tabs;
        var $glossary;
        var $ilias;
        var $tpl;
        var $lng;

        function ilGlossaryPresentationGUI()
        {
                global $lng, $ilias, $tpl, $ilCtrl;

                $this->tpl =& $tpl;
                $this->lng =& $lng;
                $this->ilias =& $ilias;
                $this->ctrl =& $ilCtrl;
                $this->offline = false;
                $this->ctrl->saveParameter($this, array("ref_id", "letter", "tax_node"));

                // Todo: check lm id
                include_once("./Modules/Glossary/classes/class.ilObjGlossaryGUI.php");
                $this->glossary_gui =& new ilObjGlossaryGUI("", $_GET["ref_id"], true, "");
                $this->glossary =& $this->glossary_gui->object;

                // determine term id and check whether it is valid (belongs to
                // current glossary or a virtual (online) sub-glossary)
                $this->term_id = (int) $_GET["term_id"];
                $glo_ids = $this->glossary->getAllGlossaryIds();
                if (!is_array($glo_ids))
                {
                        $glo_ids = array($glo_ids);
                }
                $term_glo_id = ilGlossaryTerm::_lookGlossaryID($this->term_id);
                if (!in_array($term_glo_id, $glo_ids))
                {
                        $this->term_id = "";
                }
                
                $this->tax_node = 0;
                $this->tax_id = $this->glossary->getTaxonomyId();
                if ($this->tax_id > 0 && $this->glossary->getShowTaxonomy())
                {
                        include_once("./Services/Taxonomy/classes/class.ilObjTaxonomy.php");
                        $this->tax = new ilObjTaxonomy($this->tax_id);
                }
                if ((int) $_GET["tax_node"] > 1 && $this->tax->getTree()->readRootId() != $_GET["tax_node"])
                {
                        $this->tax_node = (int) $_GET["tax_node"];
                }
        }
        
        
        function setOfflineMode($a_offline = true)
        {
                $this->offline = $a_offline;
        }
        
        function offlineMode()
        {
                return $this->offline;
        }

        function setOfflineDirectory($a_dir)
        {
                $this->offline_dir = $a_dir;
        }
        
        
        function getOfflineDirectory()
        {
                return $this->offline_dir;
        }


        function executeCommand()
        {
                global $lng, $ilAccess, $ilias;
                
                $lng->loadLanguageModule("content");

                $next_class = $this->ctrl->getNextClass($this);
                $cmd = $this->ctrl->getCmd("listTerms");

                // check write permission
                if (!$ilAccess->checkAccess("read", "", $_GET["ref_id"]) &&
                        !($ilAccess->checkAccess("visible", "", $_GET["ref_id"]) &&
                                ($cmd == "infoScreen" || strtolower($next_class) == "ilinfoscreengui")))
                {
                        $ilias->raiseError($lng->txt("permission_denied"),$ilias->error_obj->MESSAGE);
                }
                
                if ($cmd != "listDefinitions")
                {
                        $this->prepareOutput();
                }

                include_once 'Services/Payment/classes/class.ilPaymentObject.php';
                if(IS_PAYMENT_ENABLED == true 
                && (ilPaymentObject::_requiresPurchaseToAccess($_GET["ref_id"], $type = (isset($_GET['purchasetype']) ? $_GET['purchasetype'] : NULL) )))
                {
                        $this->tpl->getStandardTemplate();

                        include_once 'Services/Payment/classes/class.ilShopPurchaseGUI.php';
                        $pp = new ilShopPurchaseGUI((int)$_GET['ref_id']);
                        $ret = $this->ctrl->forwardCommand($pp);
                }
                else
                {
                        switch($next_class)
                        {
                                case "ilnotegui":
                                        $this->setTabs();
                                        $ret =& $this->listDefinitions();
                                        break;

                                case "ilinfoscreengui":
                                        $ret =& $this->outputInfoScreen();
                                        break;
                                        
                                case "ilpresentationlisttablegui":
                                        $prtab = $this->getPresentationTable();
                                        $this->ctrl->forwardCommand($prtab);
                                        return;
                                        break;

                                default:
                                        $ret =& $this->$cmd();
                                        break;
                        }
                }
                $this->tpl->show();
        }

        function prepareOutput()
        {
                $this->tpl->getStandardTemplate();
                $title = $this->glossary->getTitle();

                $this->tpl->setTitle($title);
                $this->tpl->setTitleIcon(ilUtil::getImagePath("icon_glo_b.png"));

                $this->setLocator();
        }


        function listTerms()
        {
                global $ilNavigationHistory, $ilAccess, $ilias, $lng, $ilToolbar, $ilCtrl, $ilTabs;

                
                if (!$ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        $ilias->raiseError($lng->txt("permission_denied"),$ilias->error_obj->MESSAGE);
                }
                
                if (!$this->offlineMode())
                {
                        $ilNavigationHistory->addItem($_GET["ref_id"],
                                $this->ctrl->getLinkTarget($this, "listTerms"), "glo");
                        
                        // alphabetical navigation
                        include_once("./Services/Form/classes/class.ilAlphabetInputGUI.php");
                        $ai = new ilAlphabetInputGUI($lng->txt("glo_quick_navigation"), "first");
                        $ai->setLetters($this->glossary->getFirstLetters($this->tax_node));
                        $ai->setParentCommand($this, "chooseLetter");
                        $ai->setHighlighted($_GET["letter"]);
                        $ilToolbar->addInputItem($ai, true);
                        
                }
                
//              $term_list = $this->glossary->getTermList();    

                $ret =  $this->listTermByGiven($term_list);
                $ilCtrl->setParameter($this, "term_id", "");
                
                $ilTabs->activateTab("terms");
                
                // show taxonomy
                $this->showTaxonomy();
                
                return $ret;
        }

        function listTermByGiven($term_list, $filter ="")
        {
                global $ilCtrl, $ilAccess, $ilias, $lng, $tpl;
                
                if (!$ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        $ilias->raiseError($lng->txt("permission_denied"),$ilias->error_obj->MESSAGE);
                }

                $this->lng->loadLanguageModule("meta");

                $this->setTabs();
                
                // load template for table
//              $this->tpl->addBlockfile("ADM_CONTENT", "adm_content", "tpl.table.html");

                $oldoffset = (is_numeric ($_GET["oldoffset"]))?$_GET["oldoffset"]:$_GET["offset"];

                if ($this->glossary->getPresentationMode() == "full_def")
                {
                        // content style
                        $this->tpl->setCurrentBlock("ContentStyle");
                        if (!$this->offlineMode())
                        {
                                $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET",
                                        ilObjStyleSheet::getContentStylePath($this->glossary->getStyleSheetId()));
                        }
                        else
                        {
                                $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET","content.css");
                        }
                        $this->tpl->parseCurrentBlock();

                        // syntax style
                        $this->tpl->setCurrentBlock("SyntaxStyle");
                        if (!$this->offlineMode())
                        {
                                $this->tpl->setVariable("LOCATION_SYNTAX_STYLESHEET",
                                        ilObjStyleSheet::getSyntaxStylePath());
                        }
                        else
                        {
                                $this->tpl->setVariable("LOCATION_SYNTAX_STYLESHEET",
                                        "syntaxhighlight.css");
                        }
                        $this->tpl->parseCurrentBlock();
                }

                $table = $this->getPresentationTable();

                if (!$this->offlineMode())
                {
//                      $tpl->setContent($table->getHTML());
                        $tpl->setContent($ilCtrl->getHTML($table));
                }
                else
                {
                        $this->tpl->setVariable("ADM_CONTENT", $table->getHTML());
                        return $this->tpl->get();
                }
        }

        function getPresentationTable()
        {
                include_once("./Modules/Glossary/classes/class.ilPresentationListTableGUI.php");
                $table = new ilPresentationListTableGUI($this, "listTerms", $this->glossary,
                        $this->offlineMode(), $this->tax_node, $this->glossary->getTaxonomyId());
                return $table;
        }
        
        function applyFilter()
        {
                global $ilTabs;

                $prtab = $this->getPresentationTable();
                $prtab->resetOffset();
                $prtab->writeFilterToSession();
                $this->listTerms();
                
        }
        
        function resetFilter()
        {
                $prtab = $this->getPresentationTable();
                $prtab->resetOffset();
                $prtab->resetFilter();
                $this->listTerms();
        }

        function listDefinitions($a_ref_id = 0, $a_term_id = 0, $a_get_html = false)
        {
                global $ilUser, $ilAccess, $ilias, $lng, $ilCtrl;

                if ($a_ref_id == 0)
                {
                        $ref_id = (int) $_GET["ref_id"];
                }
                else
                {
                        $ref_id = $a_ref_id;
                }
                if ($a_term_id == 0)
                {
                        $term_id = $this->term_id;
                }
                else
                {
                        $term_id = $a_term_id;
                }
                
                if (!$ilAccess->checkAccess("read", "", $ref_id))
                {
                        $ilias->raiseError($lng->txt("permission_denied"),$ilias->error_obj->MESSAGE);
                }

                // tabs
                if ($this->glossary->getPresentationMode() != "full_def")
                {
                        $this->showDefinitionTabs("content");
                }
                
                $term = new ilGlossaryTerm($term_id);
                
                if (!$a_get_html)
                {
                        $tpl = $this->tpl;

                        require_once("./Modules/Glossary/classes/class.ilGlossaryDefPageGUI.php");
                        $tpl->getStandardTemplate();
//                      $this->setTabs();

                        if ($this->offlineMode())
                        {
                                $style_name = $ilUser->prefs["style"].".css";;
                                $tpl->setVariable("LOCATION_STYLESHEET","./".$style_name);
                        }
                        else
                        {
                                $this->setLocator();
                        }

                        // content style
                        $tpl->setCurrentBlock("ContentStyle");
                        if (!$this->offlineMode())
                        {
                                $tpl->setVariable("LOCATION_CONTENT_STYLESHEET",
                                        ilObjStyleSheet::getContentStylePath($this->glossary->getStyleSheetId()));
                        }
                        else
                        {
                                $tpl->setVariable("LOCATION_CONTENT_STYLESHEET","content.css");
                        }
                        $tpl->parseCurrentBlock();

                        // syntax style
                        $tpl->setCurrentBlock("SyntaxStyle");
                        if (!$this->offlineMode())
                        {
                                $tpl->setVariable("LOCATION_SYNTAX_STYLESHEET",
                                        ilObjStyleSheet::getSyntaxStylePath());
                        }
                        else
                        {
                                $tpl->setVariable("LOCATION_SYNTAX_STYLESHEET",
                                        "syntaxhighlight.css");
                        }
                        $tpl->parseCurrentBlock();

                        $tpl->setTitleIcon(ilUtil::getImagePath("icon_term_b.png"));
                        $tpl->setTitle($this->lng->txt("cont_term").": ".$term->getTerm());

                        // load template for table
                        $tpl->addBlockfile("ADM_CONTENT", "def_list", "tpl.glossary_definition_list.html", "Modules/Glossary");
                }
                else
                {
                        $tpl = new ilTemplate("tpl.glossary_definition_list.html", true, true, "Modules/Glossary");
                }

                $defs = ilGlossaryDefinition::getDefinitionList($term_id);

                $tpl->setVariable("TXT_TERM", $term->getTerm());
                $this->mobs = array();

                for($j=0; $j<count($defs); $j++)
                {
                        $def = $defs[$j];
                        $page_gui = new ilGlossaryDefPageGUI($def["id"]);
                        $page_gui->setStyleId($this->glossary->getStyleSheetId());
                        $page = $page_gui->getPageObject();

                        // internal links
                        $page->buildDom();
                        $int_links = $page->getInternalLinks();
                        $link_xml = $this->getLinkXML($int_links);
                        $page_gui->setLinkXML($link_xml);

                        if ($this->offlineMode())
                        {
                                $page_gui->setOutputMode("offline");
                                $page_gui->setOfflineDirectory($this->getOfflineDirectory());
                        }
                        $page_gui->setSourcecodeDownloadScript($this->getLink($ref_id));
                        $page_gui->setFullscreenLink($this->getLink($ref_id, "fullscreen", $term_id, $def["id"]));

                        $page_gui->setTemplateOutput(false);
                        $page_gui->setRawPageContent(true);
                        $page_gui->setFileDownloadLink($this->getLink($ref_id, "downloadFile"));
                        if (!$this->offlineMode())
                        {
                                $output = $page_gui->preview();
                        }
                        else
                        {
                                $output = $page_gui->presentation($page_gui->getOutputMode());
                        }

                        if (count($defs) > 1)
                        {
                                $tpl->setCurrentBlock("definition_header");
                                $tpl->setVariable("TXT_DEFINITION",
                                        $this->lng->txt("cont_definition")." ".($j+1));
                                $tpl->parseCurrentBlock();
                        }
                        
                        $tpl->setCurrentBlock("definition");
                        $tpl->setVariable("PAGE_CONTENT", $output);
                        $tpl->parseCurrentBlock();
                }
                
                // display possible backlinks
                $sources = ilInternalLink::_getSourcesOfTarget('git',$_GET['term_id'],0);
                
                if ($sources)
                {
                        $backlist_shown = false;
                        foreach ($sources as $src)
                        {
                                $type = explode(':',$src['type']);
                                
                                if ($type[0] == 'lm')
                                {
                                        if ($type[1] == 'pg')
                                        {
                                                $title = ilLMPageObject::_getPresentationTitle($src['id']);
                                                $lm_id = ilLMObject::_lookupContObjID($src['id']);
                                                $lm_title = ilObject::_lookupTitle($lm_id);
                                                $tpl->setCurrentBlock('backlink_item');
                                                $ref_ids = ilObject::_getAllReferences($lm_id);
                                                $access = false;
                                                foreach($ref_ids as $rid)
                                                {
                                                        if ($ilAccess->checkAccess("read", "", $rid))
                                                        {
                                                                $access = true;
                                                        }
                                                }
                                                if ($access)
                                                {
                                                        $tpl->setCurrentBlock("backlink_item");
                                                        $tpl->setVariable("BACKLINK_LINK",ILIAS_HTTP_PATH."/goto.php?target=".$type[1]."_".$src['id']);
                                                        $tpl->setVariable("BACKLINK_ITEM",$lm_title.": ".$title);
                                                        $tpl->parseCurrentBlock();
                                                        $backlist_shown = true;
                                                }
                                        }
                                }
                        }
                        if ($backlist_shown)
                        {
                                $tpl->setCurrentBlock("backlink_list");
                                $tpl->setVariable("BACKLINK_TITLE",$this->lng->txt('glo_term_used_in'));
                                $tpl->parseCurrentBlock();
                        }
                }

                if (!$a_get_html)
                {
                        $tpl->setCurrentBlock("perma_link");
                        $tpl->setVariable("PERMA_LINK", ILIAS_HTTP_PATH.
                                "/goto.php?target=".
                                "git".
                                "_".$term_id."_".$ref_id."&client_id=".CLIENT_ID);
                        $tpl->setVariable("TXT_PERMA_LINK", $this->lng->txt("perma_link"));
                        $tpl->setVariable("PERMA_TARGET", "_top");
                        $tpl->parseCurrentBlock();
                }

                // highlighting?
                if ($_GET["srcstring"] != "" && !$this->offlineMode())
                {
                        include_once './Services/Search/classes/class.ilUserSearchCache.php';
                        $cache =  ilUserSearchCache::_getInstance($ilUser->getId());
                        $cache->switchSearchType(ilUserSearchCache::LAST_QUERY);
                        $search_string = $cache->getQuery();

                        include_once("./Services/UIComponent/TextHighlighter/classes/class.ilTextHighlighterGUI.php");
                        include_once("./Services/Search/classes/class.ilQueryParser.php");
                        $p = new ilQueryParser($search_string);
                        $p->parse();
                        
                        $words = $p->getQuotedWords();
                        if (is_array($words))
                        {
                                foreach ($words as $w)
                                {
                                        ilTextHighlighterGUI::highlight("ilGloContent", $w, $tpl);
                                }
                        }
                        $this->fill_on_load_code = true;
                }
                
                if ($this->offlineMode() || $a_get_html)
                {
                        return $tpl->get();
                }
        }
        
        function showDefinitionTabs($a_act)
        {
                global $ilTabs, $lng, $ilCtrl;
                
                if (!$this->offlineMode())
                {
                        $ilCtrl->setParameter($this, "term_id", "");
                        $this->ctrl->setParameter($this, "offset", $_GET["offset"]);
                        if (!empty ($_REQUEST["term"]))
                        {
                                $this->ctrl->setParameter($this, "term", $_REQUEST["term"]);
                                $this->ctrl->setParameter($this, "oldoffset", $_GET["oldoffset"]);
                                $back = $ilCtrl->getLinkTarget($this, "searchTerms");
                        }
                        else
                        {
                                $back = $ilCtrl->getLinkTarget($this, "listTerms");
                        }
                        $ilCtrl->setParameter($this, "term_id", $this->term_id);
                        $ilCtrl->saveParameter($this, "term_id");
                        
                        $ilTabs->setBackTarget($this->lng->txt("obj_glo"), $back);
                        
                        $ilTabs->addTab("content",
                                $lng->txt("content"),
                                $ilCtrl->getLinkTarget($this, "listDefinitions"));
        
                        $ilTabs->addTab("print_view",
                                $lng->txt("print_view"),
                                $ilCtrl->getLinkTarget($this, "printViewSelection"));
        
                        $ilCtrl->setParameterByClass("ilglossarytermgui", "term_id", $this->term_id);
                        $ilTabs->addNonTabbedLink("editing_view",
                                $lng->txt("glo_editing_view"),
                                $ilCtrl->getLinkTargetByClass(array("ilglossaryeditorgui", "ilobjglossarygui", "ilglossarytermgui"), "listDefinitions"));
                                //"ilias.php?baseClass=ilGlossaryEditorGUI&amp;ref_id=".$_GET["ref_id"]."&amp;edit_term=".$this->term_id);
                        
                        $ilTabs->activateTab($a_act);
                }
        }
        

        function fullscreen()
        {
                $html = $this->media("fullscreen");
                return $html;
        }

        function media($a_mode = "media")
        {
                $this->tpl =& new ilTemplate("tpl.fullscreen.html", true, true, "Services/COPage");
                include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                $this->tpl->setVariable("LOCATION_STYLESHEET", ilUtil::getStyleSheetLocation());
                $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET",
                        ilObjStyleSheet::getContentStylePath($this->glossary->getStyleSheetId()));

                //$int_links = $page_object->getInternalLinks();
                $med_links = ilMediaItem::_getMapAreasIntLinks($_GET["mob_id"]);

                // later
                //$link_xml = $this->getLinkXML($med_links, $this->getLayoutLinkTargets());

                $link_xlm = "";

                require_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                $media_obj =& new ilObjMediaObject($_GET["mob_id"]);

                $xml = "<dummy>";
                // todo: we get always the first alias now (problem if mob is used multiple
                // times in page)
                $xml.= $media_obj->getXML(IL_MODE_ALIAS);
                $xml.= $media_obj->getXML(IL_MODE_OUTPUT);
                $xml.= $link_xml;
                $xml.="</dummy>";

                $xsl = file_get_contents("./Services/COPage/xsl/page.xsl");
                $args = array( '/_xml' => $xml, '/_xsl' => $xsl );
                $xh = xslt_create();

                if (!$this->offlineMode())
                {
                        $enlarge_path = ilUtil::getImagePath("enlarge.png", false, "output");
                        $wb_path = ilUtil::getWebspaceDir("output")."/";
                }
                else
                {
                        $enlarge_path = "images/enlarge.png";
                        $wb_path = "";
                }

                $mode = $a_mode;

                $this->ctrl->setParameter($this, "obj_type", "MediaObject");
                $fullscreen_link =
                        $this->getLink($_GET["ref_id"], "fullscreen");
                $this->ctrl->clearParameters($this);

                $params = array ('mode' => $mode, 'enlarge_path' => $enlarge_path,
                        'link_params' => "ref_id=".$_GET["ref_id"],'fullscreen_link' => $fullscreen_link,
                        'ref_id' => $_GET["ref_id"], 'pg_frame' => $pg_frame, 'webspace_path' => $wb_path);
                $output = xslt_process($xh,"arg:/_xml","arg:/_xsl",NULL,$args, $params);
                echo xslt_error($xh);
                xslt_free($xh);

                // unmask user html
                $this->tpl->setVariable("MEDIA_CONTENT", $output);

                $this->tpl->parseCurrentBlock();
                if ($this->offlineMode())
                {
                        $html = $this->tpl->get();
                        return $html;
                }

        }

        function showDownloadList()
        {
                global $ilBench, $ilAccess, $ilias, $lng, $ilTabs;

                if (!$ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        $ilias->raiseError($lng->txt("permission_denied"),$ilias->error_obj->MESSAGE);
                }

                $this->tpl->addBlockFile("ADM_CONTENT", "adm_content", "tpl.glo_download_list.html", "Modules/Glossary");

                $this->setTabs();
                $ilTabs->activateTab("download");
                
                // set title header
                $this->tpl->setTitle($this->glossary->getTitle());
                //$this->tpl->setVariable("IMG_HEADER", ilUtil::getImagePath("icon_glo_b.png"));
                $this->tpl->setTitleIcon(ilUtil::getImagePath("icon_glo_b.png"));

                // create table
                require_once("./Services/Table/classes/class.ilTableGUI.php");
                $tbl = new ilTableGUI();

                // load files templates
                $this->tpl->addBlockfile("DOWNLOAD_TABLE", "download_table", "tpl.table.html");

                // load template for table content data
                $this->tpl->addBlockfile("TBL_CONTENT", "tbl_content", "tpl.download_file_row.html", "Modules/Glossary");

                $export_files = array();
                $types = array("xml", "html");
                foreach($types as $type)
                {
                        if ($this->glossary->getPublicExportFile($type) != "")
                        {
                                $dir = $this->glossary->getExportDirectory($type);
                                if (is_file($this->glossary->getExportDirectory($type)."/".
                                        $this->glossary->getPublicExportFile($type)))
                                {
                                        $size = filesize($this->glossary->getExportDirectory($type)."/".
                                                $this->glossary->getPublicExportFile($type));
                                        $export_files[] = array("type" => $type,
                                                "file" => $this->glossary->getPublicExportFile($type),
                                                "size" => $size);
                                }
                        }
                }
                
                $num = 0;
                
                $tbl->setTitle($this->lng->txt("download"));

                $tbl->setHeaderNames(array($this->lng->txt("cont_format"),
                        $this->lng->txt("cont_file"),
                        $this->lng->txt("size"), $this->lng->txt("date"),
                        ""));

                $cols = array("format", "file", "size", "date", "download");
                $header_params = array("ref_id" => $_GET["ref_id"], "obj_id" => $_GET["obj_id"],
                        "cmd" => "showDownloadList", "cmdClass" => strtolower(get_class($this)));
                $tbl->setHeaderVars($cols, $header_params);
                $tbl->setColumnWidth(array("10%", "30%", "20%", "20%","20%"));
                $tbl->disable("sort");

                // control
                $tbl->setOrderColumn($_GET["sort_by"]);
                $tbl->setOrderDirection($_GET["sort_order"]);
                $tbl->setLimit($_GET["limit"]);
                $tbl->setOffset($_GET["offset"]);
                $tbl->setMaxCount($this->maxcount);             // ???

                $this->tpl->setVariable("COLUMN_COUNTS", 5);

                // footer
                //$tbl->setFooter("tblfooter",$this->lng->txt("previous"),$this->lng->txt("next"));
                $tbl->disable("footer");

                $tbl->setMaxCount(count($export_files));
                $export_files = array_slice($export_files, $_GET["offset"], $_GET["limit"]);

                $tbl->render();
                if(count($export_files) > 0)
                {
                        $i=0;
                        foreach($export_files as $exp_file)
                        {
                                $this->tpl->setCurrentBlock("tbl_content");
                                $this->tpl->setVariable("TXT_FILENAME", $exp_file["file"]);

                                $css_row = ilUtil::switchColor($i++, "tblrow1", "tblrow2");
                                $this->tpl->setVariable("CSS_ROW", $css_row);

                                $this->tpl->setVariable("TXT_SIZE", $exp_file["size"]);
                                $this->tpl->setVariable("TXT_FORMAT", strtoupper($exp_file["type"]));
                                $this->tpl->setVariable("CHECKBOX_ID", $exp_file["type"].":".$exp_file["file"]);

                                $file_arr = explode("__", $exp_file["file"]);
                                $this->tpl->setVariable("TXT_DATE", date("Y-m-d H:i:s",$file_arr[0]));

                                $this->tpl->setVariable("TXT_DOWNLOAD", $this->lng->txt("download"));
                                $this->ctrl->setParameter($this, "type", $exp_file["type"]);
                                $this->tpl->setVariable("LINK_DOWNLOAD",
                                        $this->ctrl->getLinkTarget($this, "downloadExportFile"));
                                        
                                $this->tpl->parseCurrentBlock();
                        }
                } //if is_array
                else
                {
                        $this->tpl->setVariable("TXT_OBJECT_NOT_FOUND", $this->lng->txt("obj_not_found"));
                        $this->tpl->setVariable("NUM_COLS", 5);
                        $this->tpl->parseCurrentBlock();
                }

                //$this->tpl->show();
        }

        function downloadExportFile()
        {
                global $ilAccess, $ilias, $lng;
                
                if (!$ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        $ilias->raiseError($lng->txt("permission_denied"),$ilias->error_obj->MESSAGE);
                }

                $file = $this->glossary->getPublicExportFile($_GET["type"]);
                if ($this->glossary->getPublicExportFile($_GET["type"]) != "")
                {
                        $dir = $this->glossary->getExportDirectory($_GET["type"]);
                        if (is_file($dir."/".$file))
                        {
                                ilUtil::deliverFile($dir."/".$file, $file);
                                exit;
                        }
                }
                $this->ilias->raiseError($this->lng->txt("file_not_found"),$this->ilias->error_obj->MESSAGE);
        }

        function setLocator($a_tree = "", $a_id = "")
        {               
                //$this->tpl->addBlockFile("LOCATOR", "locator", "tpl.locator.html", "Services/Locator");
                require_once ("./Modules/Glossary/classes/class.ilGlossaryLocatorGUI.php");
                $gloss_loc =& new ilGlossaryLocatorGUI();
                $gloss_loc->setMode("presentation");
                if (!empty($this->term_id))
                {
                        $term =& new ilGlossaryTerm($this->term_id);
                        $gloss_loc->setTerm($term);
                }
                $gloss_loc->setGlossary($this->glossary);
                //$gloss_loc->setDefinition($this->definition);
                $gloss_loc->display();
        }

        function downloadFile()
        {
                global $ilAccess, $ilias, $lng;
                
                if (!$ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        $ilias->raiseError($lng->txt("permission_denied"),$ilias->error_obj->MESSAGE);
                }

                $file = explode("_", $_GET["file_id"]);
                include_once("./Modules/File/classes/class.ilObjFile.php");
                $fileObj =& new ilObjFile($file[count($file) - 1], false);
                $fileObj->sendFile();
                exit;
        }

        function setTabs()
        {
                global $ilTabs;
                $this->getTabs($ilTabs);
        }

        function getLinkXML($a_int_links)
        {

                if ($a_layoutframes == "")
                {
                        $a_layoutframes = array();
                }
                $link_info = "<IntLinkInfos>";
                foreach ($a_int_links as $int_link)
                {
//echo "<br>+".$int_link["Type"]."+".$int_link["TargetFrame"]."+".$int_link["Target"]."+";
                        $target = $int_link["Target"];
                        if (substr($target, 0, 4) == "il__")
                        {
                                $target_arr = explode("_", $target);
                                $target_id = $target_arr[count($target_arr) - 1];
                                $type = $int_link["Type"];
                                $targetframe = ($int_link["TargetFrame"] != "")
                                        ? $int_link["TargetFrame"]
                                        : "None";
                                        
                                // anchor
                                $anc = $anc_add = "";
                                if ($int_link["Anchor"] != "")
                                {
                                        $anc = $int_link["Anchor"];
                                        $anc_add = "_".rawurlencode($int_link["Anchor"]);
                                }

                                if ($targetframe == "New")
                                {
                                        $ltarget = "_blank";
                                }
                                else
                                {
                                        $ltarget = "";
                                }

                                switch($type)
                                {
                                        case "PageObject":
                                        case "StructureObject":
                                                $lm_id = ilLMObject::_lookupContObjID($target_id);
                                                $cont_obj =& $this->content_object;
                                                if ($type == "PageObject")
                                                {
                                                        $href = "./goto.php?target=pg_".$target_id.$anc_add;
                                                }
                                                else
                                                {
                                                        $href = "./goto.php?target=st_".$target_id;
                                                }
                                                //$ltarget = "ilContObj".$lm_id;
                                                break;

                                        case "GlossaryItem":
                                                if (ilGlossaryTerm::_lookGlossaryID($target_id) == $this->glossary->getId())
                                                {
                                                        if ($this->offlineMode())
                                                        {
                                                                $href = "term_".$target_id.".html";
                                                        }
                                                        else
                                                        {
                                                                $this->ctrl->setParameter($this, "term_id", $target_id);
                                                                $href = $this->ctrl->getLinkTarget($this, "listDefinitions");
                                                                $href = str_replace("&", "&amp;", $href);
                                                        }
                                                }
                                                else
                                                {
                                                        $href = "./goto.php?target=git_".$target_id;
                                                }
                                                break;

                                        case "MediaObject":
                                                if ($this->offlineMode())
                                                {
                                                        $href = "media_".$target_id.".html";
                                                }
                                                else
                                                {
                                                        $this->ctrl->setParameter($this, "obj_type", $type);
                                                        $this->ctrl->setParameter($this, "mob_id", $target_id);
                                                        $href = $this->ctrl->getLinkTarget($this, "media");
                                                        $href = str_replace("&", "&amp;", $href);
                                                }
                                                break;

                                        case "RepositoryItem":
                                                $obj_type = ilObject::_lookupType($target_id, true);
                                                $obj_id = ilObject::_lookupObjId($target_id);
                                                $href = "./goto.php?target=".$obj_type."_".$target_id;
                                                $t_frame = ilFrameTargetInfo::_getFrame("MainContent", $obj_type);
                                                $ltarget = $t_frame;
                                                break;
                                                
                                        case "WikiPage":
                                                include_once("./Modules/Wiki/classes/class.ilWikiPage.php");
                                                $href = ilWikiPage::getGotoForWikiPageTarget($target_id);
                                                break;
                                }
                                
                                $anc_par = 'Anchor="'.$anc.'"';
                                
                                $link_info.="<IntLinkInfo Target=\"$target\" Type=\"$type\" ".
                                        "TargetFrame=\"$targetframe\" LinkHref=\"$href\" LinkTarget=\"$ltarget\" $anc_par/>";
                                
                                $this->ctrl->clearParameters($this);
                        }
                }
                $link_info.= "</IntLinkInfos>";

                return $link_info;
        }


        function getLink($a_ref_id, $a_cmd = "", $a_term_id = "", $a_def_id = "",
                $a_frame = "", $a_type = "")
        {
                if ($a_cmd == "")
                {
                        $a_cmd = "layout";
                }
                //$script = "glossary_presentation.php";

                // handle online links
                if (!$this->offlineMode())
                {
                        //$link = $script."?ref_id=".$a_ref_id;
                        switch ($a_cmd)
                        {
                                case "fullscreen":
                                        $this->ctrl->setParameter($this, "def_id", $a_def_id);
                                        $link = $this->ctrl->getLinkTarget($this, "fullscreen");
                                        break;
                                
                                default:
                                        $link.= "&amp;cmd=".$a_cmd;
                                        if ($a_frame != "")
                                        {
                                                $this->ctrl->setParameter($this, "frame", $a_frame);
                                        }
                                        if ($a_obj_id != "")
                                        {
                                                switch ($a_type)
                                                {
                                                        case "MediaObject":
                                                                $this->ctrl->setParameter($this, "mob_id", $a_obj_id);
                                                                break;
                                                                
                                                        default:
                                                                $this->ctrl->setParameter($this, "def_id", $a_def_id);
                                                                break;
                                                }
                                        }
                                        if ($a_type != "")
                                        {
                                                $this->ctrl->setParameter($this, "obj_type", $a_type);
                                        }
                                        $link = $this->ctrl->getLinkTarget($this, $a_cmd);
//                                      $link = str_replace("&", "&amp;", $link);
                                        break;
                        }
                }
                else    // handle offline links
                {
                        switch ($a_cmd)
                        {
                                case "downloadFile":
                                        break;
                                        
                                case "fullscreen":
                                        $link = "fullscreen.html";              // id is handled by xslt
                                        break;
                                        
                                case "layout":
                                        break;
                                        
                                case "glossary":
                                        $link = "term_".$a_obj_id.".html";
                                        break;
                                
                                case "media":
                                        $link = "media_".$a_obj_id.".html";
                                        break;
                                        
                                default:
                                        break;
                        }
                }
                $this->ctrl->clearParameters($this);
                return $link;
        }

        function printViewSelection()
        {
                global $ilUser, $lng, $ilToolbar, $ilCtrl, $tpl, $ilTabs;

                $ilCtrl->saveParameter($this, "term_id");
                
                if ((int) $this->term_id == 0)
                {
                        $this->setTabs();
                        $ilTabs->activateTab("print_view");
                }
                else
                {
                        $tpl->setTitleIcon(ilUtil::getImagePath("icon_term_b.png"));
                        $term = new ilGlossaryTerm((int) $this->term_id);
                        $tpl->setTitle($this->lng->txt("cont_term").": ".$term->getTerm());
                        $this->showDefinitionTabs("print_view");
                }

                $this->initPrintViewSelectionForm();

                $tpl->setContent($this->form->getHTML());
        }

        public function initPrintViewSelectionForm()
        {
                global $lng, $ilCtrl;

                $terms = $this->glossary->getTermList();

                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();
                $this->form->setTarget("print_view");
                $this->form->setFormAction($ilCtrl->getFormAction($this));
                
                // selection type
                $radg = new ilRadioGroupInputGUI($lng->txt("cont_selection"), "sel_type");
                $radg->setValue("glossary");
                
                        // current term
                        if ((int) $this->term_id > 0)
                        {
                                $op1 = new ilRadioOption($lng->txt("cont_current_term"), "term");
                                $radg->addOption($op1);
                                $radg->setValue("term");
                        }
                        
                        // whole glossary
                        $op2 = new ilRadioOption($lng->txt("cont_whole_glossary")
                                ." (".$lng->txt("cont_terms").": ".count($terms).")", "glossary");
                        $radg->addOption($op2);
                        
                        // selected topic
                        if (($t_id = $this->glossary->getTaxonomyId()) > 0 && $this->glossary->getShowTaxonomy())
                        {
                                $op4 = new ilRadioOption($lng->txt("cont_selected_topic"), "sel_topic");
                                $radg->addOption($op4);
                                
                                // topic drop down
                                include_once("./Services/Taxonomy/classes/class.ilTaxAssignInputGUI.php");
                                $si = new ilTaxAssignInputGUI($t_id, false, $lng->txt("cont_topic"), "topic",
                                        false);
                                if ($this->tax_node > 0)
                                {
                                        $si->setValue((int) $this->tax_node);
                                }
                                $op4->addSubItem($si);
                                
                        }
                        
                        // selected terms
                        $op3= new ilRadioOption($lng->txt("cont_selected_terms"), "selection");
                        $radg->addOption($op3);

                        include_once("./Services/Form/classes/class.ilNestedListInputGUI.php");
                        $nl = new ilNestedListInputGUI("", "obj_id");
                        $op3->addSubItem($nl);
//var_dump($terms);
                        foreach ($terms as $t)
                        {
                                $nl->addListNode($t["id"], $t["term"], 0, false, false);
                        }

                $this->form->addItem($radg);

                $this->form->addCommandButton("printView", $lng->txt("cont_show_print_view"));

                $this->form->setTitle($lng->txt("cont_print_selection"));
        }

        function printView()
        {
                global $ilAccess, $tpl;

                if (!$ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        return;
                }

                $terms = array();
                switch ($_POST["sel_type"])
                {
                        case "glossary":
                                $ts = $this->glossary->getTermList();
                                foreach ($ts as $t)
                                {
                                        $terms[] = $t["id"];
                                }
                                break;
                                
                        case "sel_topic":
                                include_once("./Services/Taxonomy/classes/class.ilObjTaxonomy.php");
                                $t_id = $this->glossary->getTaxonomyId();
                                $items = ilObjTaxonomy::getSubTreeItems("glo", $this->glossary->getId(), "term", $t_id, (int) $_POST["topic"]);
                                foreach ($items as $i)
                                {
                                        if ($i["item_type"] == "term")
                                        {
                                                $terms[] = $i["item_id"];
                                        }
                                }
                                break;

                        case "selection":
                                if (is_array($_POST["obj_id"]))
                                {
                                        $terms = $_POST["obj_id"];
                                }
                                else
                                {
                                        $terms = array();
                                }
                                break;
                                
                        case "term":
                                $terms = array($this->term_id);
                                break;
                }

                $tpl = new ilTemplate("tpl.main.html", true, true);
                $tpl->setVariable("LOCATION_STYLESHEET", ilObjStyleSheet::getContentPrintStyle());
                
/*
                // syntax style
                $this->tpl->setCurrentBlock("SyntaxStyle");
                $this->tpl->setVariable("LOCATION_SYNTAX_STYLESHEET",
                        ilObjStyleSheet::getSyntaxStylePath());
                $this->tpl->parseCurrentBlock();

                // content style
                $this->tpl->setCurrentBlock("ContentStyle");
                $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET",
                        ilObjStyleSheet::getContentStylePath($this->glossary->getStyleSheetId()));
                $this->tpl->parseCurrentBlock();*/

                include_once("./Services/jQuery/classes/class.iljQueryUtil.php");
                iljQueryUtil::initjQuery($tpl);
                
                // determine target frames for internal links

                foreach ($terms as $t_id)
                {
                        $page_content.= $this->listDefinitions($_GET["ref_id"], $t_id, true);
                }
                $tpl->setVariable("CONTENT", $page_content.
                '<script type="text/javascript" language="javascript1.2">
                <!--
                        il.Util.addOnLoad(function () {
                                il.Util.print();
                        });
                //-->
                </script>');
                $tpl->show(false);
                exit;
        }

        function getTabs(&$tabs_gui)
        {
                global $ilAccess, $lng, $ilCtrl, $ilHelp;
                
                $ilHelp->setScreenIdComponent("glo");
                
                $oldoffset = (is_numeric ($_GET["oldoffset"]))?$_GET["oldoffset"]:$_GET["offset"];

                if (!$this->offlineMode())
                {
                        if ($this->ctrl->getCmd() != "listDefinitions")
                        {
                                if ($ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                                {
                                        $tabs_gui->addTab("terms",
                                                $lng->txt("cont_terms"),
                                                $ilCtrl->getLinkTarget($this, "listTerms"));
                                }
        
                                $tabs_gui->addTab("info",
                                        $lng->txt("info_short"),
                                        $ilCtrl->getLinkTarget($this, "infoScreen"));

                                $tabs_gui->addTab("print_view",
                                        $lng->txt("cont_print_view"),
                                        $ilCtrl->getLinkTarget($this, "printViewSelection"));

                                // glossary menu
                                if ($ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                                {
                                        //if ($this->glossary->isActiveGlossaryMenu())
                                        //{
                                                // download links
                                                if ($this->glossary->isActiveDownloads())
                                                {
                                                        $tabs_gui->addTab("download",
                                                                $lng->txt("download"),
                                                                $ilCtrl->getLinkTarget($this, "showDownloadList"));
                                                }
                                        //}
                                }

                                if ($ilAccess->checkAccess("write", "", (int) $_GET["ref_id"]) ||
                                        $ilAccess->checkAccess("edit_content", "", (int) $_GET["ref_id"]))
                                {
                                        $tabs_gui->addNonTabbedLink("editing_view",
                                                $lng->txt("glo_editing_view"),
                                                "ilias.php?baseClass=ilGlossaryEditorGUI&amp;ref_id=".(int) $_GET["ref_id"],
                                                "_top");
                                }

                        }
                }
                else
                {
                        $tabs_gui->addTarget("cont_back",
                                "index.html#term_".$this->term_id, "",
                                "");
                }
        }
        
        function download_paragraph () {
                include_once("./Modules/Glossary/classes/class.ilGlossaryDefPage.php");
                $pg_obj = new ilGlossaryDefPage($_GET["pg_id"]);
                $pg_obj->send_paragraph ($_GET["par_id"], $_GET["downloadtitle"]);
        }


        function infoScreen()
        {
                $this->ctrl->setCmd("showSummary");
                $this->ctrl->setCmdClass("ilinfoscreengui");
                $this->outputInfoScreen();
        }

        /*
        function showInfoScreen()
        {
                $this->outputInfoScreen(true);
        }*/

        function outputInfoScreen()
        {
                global $ilBench, $ilAccess, $ilTabs;

                $this->setTabs();
                $ilTabs->activateTab("info");
                $this->lng->loadLanguageModule("meta");

                include_once("./Services/InfoScreen/classes/class.ilInfoScreenGUI.php");

                $info = new ilInfoScreenGUI($this->glossary_gui);
                $info->enablePrivateNotes();
                //$info->enableLearningProgress();

                $info->enableNews();
                if ($ilAccess->checkAccess("write", "", $_GET["ref_id"]))
                {
                        $info->enableNewsEditing();
                        $news_set = new ilSetting("news");
                        $enable_internal_rss = $news_set->get("enable_rss_for_internal");
                        if ($enable_internal_rss)
                        {
                                $info->setBlockProperty("news", "settings", true);
                        }
                }

                // add read / back button
                if ($ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        /*
                        if ($_GET["obj_id"] > 0)
                        {
                                $this->ctrl->setParameter($this, "obj_id", $_GET["obj_id"]);
                                $info->addButton($this->lng->txt("back"),
                                        $this->ctrl->getLinkTarget($this, "layout"));
                        }
                        else
                        {
                                $info->addButton($this->lng->txt("view"),
                                        $this->ctrl->getLinkTarget($this, "layout"));
                        }*/
                }
                
                // show standard meta data section
                $info->addMetaDataSections($this->glossary->getId(),0, $this->glossary->getType());
                
                include_once("./Modules/Glossary/classes/class.ilObjGlossaryGUI.php");
                ilObjGlossaryGUI::addUsagesToInfo($info, $this->glossary->getId());

                if ($this->offlineMode())
                {
                        $this->tpl->setContent($info->getHTML());
                        return $this->tpl->get();
                }
                else
                {
                        // forward the command
                        $this->ctrl->forwardCommand($info);
                }
        }
        
        function chooseLetter()
        {
                global $ilCtrl;
                
                $ilCtrl->redirect($this, "listTerms");
        }
        
        function showTaxonomy()
        {
                global $tpl, $lng;
                if (!$this->offlineMode() && $this->glossary->getShowTaxonomy())
                {
                        include_once("./Services/Taxonomy/classes/class.ilObjTaxonomy.php");
                        $tax_ids = ilObjTaxonomy::getUsageOfObject($this->glossary->getId());
                        if (count($tax_ids) > 0)
                        {
                                include_once("./Services/Taxonomy/classes/class.ilTaxonomyExplorerGUI.php");
                                $tax_exp = new ilTaxonomyExplorerGUI($this, "showTaxonomy", $tax_ids[0],
                                        "ilglossarypresentationgui", "listTerms");
                                if (!$tax_exp->handleCommand())
                                {
                                        //$tpl->setLeftNavContent($tax_exp->getHTML());
                                        $tpl->setLeftContent($tax_exp->getHTML()."&nbsp;");
                                }
                                return;
                                
                                
                                include_once("./Services/Taxonomy/classes/class.ilObjTaxonomyGUI.php");
                                $tpl->setLeftNavContent(ilObjTaxonomyGUI::getTreeHTML($tax_ids[0],
                                        "ilglossarypresentationgui", "listTerms", $lng->txt("cont_all_topics")));
                        }
                }

        }
        
        
}

?>