class.ilPageObjectGUI.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

define ("IL_PAGE_PRESENTATION", "presentation");
define ("IL_PAGE_EDIT", "edit");
define ("IL_PAGE_PREVIEW", "preview");
define ("IL_PAGE_OFFLINE", "offline");
define ("IL_PAGE_PRINT", "print");

include_once ("./Services/COPage/classes/class.ilPageEditorGUI.php");
include_once("./Services/COPage/classes/class.ilPageObject.php");
include_once("./Services/Clipboard/classes/class.ilEditClipboardGUI.php");
include_once("./Services/Utilities/classes/class.ilDOMUtil.php");

class ilPageObjectGUI
{
        var $tpl;
        var $lng;
        var $ctrl;
        var $obj;
        var $output_mode;
        var $presentation_title;
        var $target_script;
        var $return_location;
        var $target_var;
        var $template_output_var;
        var $output2template;
        var $link_params;
        var $bib_id;
        var $citation;
        var $sourcecode_download_script;
        var $change_comments;
        var $question_html;
        var $activation = false;
        var $activated = true;
        var $editpreview = false;
        var $use_meta_data = false;
        var $link_xml_set = false;
        var $enableediting = true;
        var $rawpagecontent = false;
        var $enabledcontentincludes = false;
        var $compare_mode = false;
        var $page_config = null;
        var $tabs_enabled = true;
        var $render_page_container = false;
        private $abstract_only = false;
        protected $parent_type = "";

        //var $pl_start = "&#123;&#123;&#123;&#123;&#123;";
        //var $pl_end = "&#125;&#125;&#125;&#125;&#125;";
        var $pl_start = "{{{{{";
        var $pl_end = "}}}}}";
        
        function ilPageObjectGUI($a_parent_type, $a_id, $a_old_nr = 0,
                $a_prevent_get_id = false, $a_lang = "")
        {
                global $tpl, $lng, $ilCtrl,$ilTabs;

                $this->setParentType($a_parent_type);
                $this->setId($a_id);            
                if ($a_old_nr == 0 && !$a_prevent_get_id && $_GET["old_nr"] > 0)
                {
                        $a_old_nr = $_GET["old_nr"];
                }
                $this->setOldNr($a_old_nr);
                
                if ($a_lang == "" && $_GET["transl"] != "")
                {
                        $this->setLanguage($_GET["transl"]);
                }
                else
                {
                        if ($a_lang == "")
                        {
                                $a_lang = "-";
                        }
                        $this->setLanguage($a_lang);
                }
                
                $this->tpl = $tpl;
                $this->ctrl = $ilCtrl;
                $this->lng = $lng;
                
                $this->setOutputMode(IL_PAGE_PRESENTATION);
                $this->setEnabledPageFocus(true);
                $this->initPageObject();
                $this->setPageConfig($this->getPageObject()->getPageConfig());

                $this->output2template = true;
                $this->question_xml = "";
                $this->question_html = "";
                $this->tabs_gui =& $ilTabs;

                $this->template_output_var = "PAGE_CONTENT";
                $this->citation = false;
                $this->change_comments = false;
                $this->page_back_title = $this->lng->txt("page");
                $lng->loadLanguageModule("content");
                
                $this->setTemplateOutput(false);
                
                $ilCtrl->saveParameter($this, "transl");
                
                $this->afterConstructor();
        }
        
        function afterConstructor()
        {
        }
        

        protected final function initPageObject()
        {
                include_once("./Services/COPage/classes/class.ilPageObjectFactory.php");
                $page = ilPageObjectFactory::getInstance($this->getParentType(), $this->getId(), $this->getOldNr(),
                        $this->getLanguage());
                $this->setPageObject($page);
        }
        
        function setParentType($a_val)
        {
                $this->parent_type = $a_val;
        }
        
        function getParentType()
        {
                return $this->parent_type;
        }
        
        function setId($a_val)
        {
                $this->id = $a_val;
        }
        
        function getId()
        {
                return $this->id;
        }
        
        function setOldNr($a_val)
        {
                $this->old_nr = $a_val;
        }
        
        function getOldNr()
        {
                return $this->old_nr;
        }
        
        function setLanguage($a_val)
        {
                $this->language = $a_val;
        }
        
        function getLanguage()
        {
                if ($this->language == "")
                {
                        return "-";
                }
                
                return $this->language;
        }
        
        function setEnablePCType($a_pc_type, $a_val)
        {
                $this->getPageConfig()->setEnablePCType($a_pc_type, $a_val);
        }
        
        function getEnablePCType($a_pc_type)
        {
                return $this->getPageConfig()->getEnablePCType($a_pc_type);
        }
        
        function setPageConfig($a_val)
        {
                $this->page_config = $a_val;
        }
        
        function getPageConfig()
        {
                return $this->page_config;
        }
        
        function setBibId($a_id)
        {
                // USED FOR SELECTION WHICH PAGE TURNS AND LATER PAGES SHOULD BE SHOWN
                $this->bib_id = $a_id;
        }

        function getBibId()
        {
                return $this->bib_id ? $this->bib_id : 0;
        }

        function setPageObject($a_pg_obj)
        {
                $this->obj = $a_pg_obj;
        }

        function getPageObject()
        {
                return $this->obj;
        }

        function setOutputMode($a_mode = IL_PAGE_PRESENTATION)
        {
                $this->output_mode = $a_mode;
        }

        function getOutputMode()
        {
                return $this->output_mode;
        }

        function setTemplateOutput($a_output = true)
        {
                $this->output2template = $a_output;
        }

        function outputToTemplate()
        {
                return $this->output2template;
        }

        function setPresentationTitle($a_title = "")
        {
                $this->presentation_title = $a_title;
        }

        function getPresentationTitle()
        {
                return $this->presentation_title;
        }

        function setHeader($a_title = "")
        {
                $this->header = $a_title;
        }

        function getHeader()
        {
                return $this->header;
        }

        function setLinkParams($l_params = "")
        {
                $this->link_params = $l_params;
        }

        function getLinkParams()
        {
                return $this->link_params;
        }

        function setLinkFrame($l_frame = "")
        {
                $this->link_frame = $l_frame;
        }

        function getLinkFrame()
        {
                return $this->link_frame;
        }

        function setLinkXML($link_xml)
        {
                $this->link_xml = $link_xml;
                $this->link_xml_set = true;
        }

        function getLinkXML()
        {
                return $this->link_xml;
        }

        function setQuestionXML($question_xml)
        {
                $this->question_xml = $question_xml;
        }

        function setQuestionHTML($question_html)
        {
                $this->getPageConfig()->setQuestionHTML($question_html);
        }

        function getQuestionXML()
        {
                return $this->question_xml;
        }

        function getQuestionHTML()
        {
                return $this->getPageConfig()->getQuestionHTML();
        }

        function setTemplateTargetVar($a_variable)
        {
                $this->target_var = $a_variable;
        }

        function getTemplateTargetVar()
        {
                return $this->target_var;
        }

        function setTemplateOutputVar($a_value)
        {
                $this->template_output_var = $a_value;
        }

        function getTemplateOutputVar()
        {
                return $this->template_output_var;
        }

        // @todo 1: can we get rid of this?
        function setSourcecodeDownloadScript ($script_name) {
                $this->sourcecode_download_script = $script_name;
        }

        function getSourcecodeDownloadScript () {
                return $this->sourcecode_download_script;
        }

        function enableCitation($a_enabled)
        {
                $this->citation = $a_enabled;
        }

        function isEnabledCitation()
        {
                return $this->citation;
        }

        function setLocator(&$a_locator)
        {
                $this->locator =& $a_locator;
        }

        function setTabs($a_tabs)
        {
                $this->tabs_gui = $a_tabs;
        }

        function setPageBackTitle($a_title)
        {
                $this->page_back_title = $a_title;
        }

        // @todo 1: can we get rid of this?
        function setFileDownloadLink($a_download_link)
        {
                $this->file_download_link = $a_download_link;
        }

        function getFileDownloadLink()
        {
                return $this->file_download_link;
        }

        // @todo 1: can we get rid of this?
        function setFullscreenLink($a_fullscreen_link)
        {
                $this->fullscreen_link = $a_fullscreen_link;
        }

        function getFullscreenLink()
        {
                return $this->fullscreen_link;
        }

        function setIntLinkReturn($a_return)
        {
                $this->int_link_return = $a_return;
        }

        function enableChangeComments($a_enabled)
        {
                $this->change_comments = $a_enabled;
        }

        function isEnabledChangeComments()
        {
                return $this->change_comments;
        }

        function enableNotes($a_enabled, $a_parent_id)
        {
                $this->notes_enabled = $a_enabled;
                $this->notes_parent_id = $a_parent_id;
        }

        function isEnabledNotes()
        {
                return $this->notes_enabled;
        }

        function setOfflineDirectory ($offdir) {
                $this->offline_directory = $offdir;
        }


        function getOfflineDirectory () {
                return $this->offline_directory;
        }


        function setViewPageLink($a_link, $a_target = "")
        {
                $this->view_page_link = $a_link;
                $this->view_page_target = $a_target;
        }

        function getViewPageLink()
        {
                return $this->view_page_link;
        }

        function getViewPageTarget()
        {
                return $this->view_page_target;
        }

        function setActivationListener(&$a_obj, $a_meth)
        {
                $this->act_obj =& $a_obj;
                $this->act_meth = $a_meth;
        }

        function setEnabledNews($a_enabled, $a_news_obj_id = 0, $a_news_obj_type = 0)
        {
                $this->enabled_news = $a_enabled;
                $this->news_obj_id = $a_news_obj_id;
                $this->news_obj_type = $a_news_obj_type;
        }

        function getEnabledNews()
        {
                return $this->enabled_news;
        }

        function setTabHook($a_object, $a_function)
        {
                $this->tab_hook = array("obj" => $a_object, "func" => $a_function);
        }
                
        function setEditPreview($a_editpreview)
        {
                $this->editpreview = $a_editpreview;
        }

        function getEditPreview()
        {
                return $this->editpreview;
        }

        function setEnabledTabs($a_enabledtabs)
        {
                $this->tabs_enabled = $a_enabledtabs;
        }

        function getEnabledTabs()
        {
                return $this->tabs_enabled;
        }

        function setEnabledPageFocus($a_enabledpagefocus)
        {
                $this->enabledpagefocus = $a_enabledpagefocus;
        }

        function getEnabledPageFocus()
        {
                return $this->enabledpagefocus;
        }

        function setExplorerUpdater($a_exp_frame, $a_exp_id, $a_exp_target_script)
        {
return;
                $this->exp_frame = $a_exp_frame;
                $this->exp_id = $a_exp_id;
                $this->exp_target_script = $a_exp_target_script;
        }

        function setPrependingHtml($a_prependinghtml)
        {
                $this->prependinghtml = $a_prependinghtml;
        }

        function getPrependingHtml()
        {
                return $this->prependinghtml;
        }

        function setEnableEditing($a_enableediting)
        {
                $this->enableediting = $a_enableediting;
        }

        function getEnableEditing()
        {
                return $this->enableediting;
        }

        function setRawPageContent($a_rawpagecontent)
        {
                $this->rawpagecontent = $a_rawpagecontent;
        }

        function getRawPageContent()
        {
                return $this->rawpagecontent;
        }

        function setStyleId($a_styleid)
        {
                $this->styleid = $a_styleid;
        }

        function getStyleId()
        {
                return $this->styleid;
        }

        function setCompareMode($a_val)
        {
                $this->compare_mode = $a_val;
        }
        
        function getCompareMode()
        {
                return $this->compare_mode;
        }
        
        function setAbstractOnly($a_val)
        {
                $this->abstract_only = $a_val;
        }
        
        function getAbstractOnly()
        {
                return $this->abstract_only;
        }
        
        function setRenderPageContainer($a_val)
        {
                $this->render_page_container = $a_val;
        }
        
        function getRenderPageContainer()
        {
                return $this->render_page_container;
        }
        
        function activateMetaDataEditor($a_rep_obj_id, $a_sub_obj_id, $a_type,
                $a_observer_obj = NULL, $a_observer_func = "")
        {
                $this->use_meta_data = true;
                $this->meta_data_rep_obj_id = $a_rep_obj_id;
                $this->meta_data_sub_obj_id = $a_sub_obj_id;
                $this->meta_data_type = $a_type;
                $this->meta_data_observer_obj = $a_observer_obj;
                $this->meta_data_observer_func = $a_observer_func;
        }

        function determineFileDownloadLink()
        {
                global $ilCtrl;
                
                $file_download_link = $this->getFileDownloadLink();
                if ($this->getFileDownloadLink() == "" && $this->getOutputMode() != "offline")
                {
                        $file_download_link = $ilCtrl->getLinkTarget($this, "downloadFile");
                }
                return $file_download_link;
        }

        function determineFullscreenLink()
        {
                global $ilCtrl;

                $fullscreen_link = $this->getFullscreenLink();
                if ($this->getFullscreenLink() == "" && $this->getOutputMode() != "offline")
                {
                        $fullscreen_link = $ilCtrl->getLinkTarget($this, "displayMediaFullscreen", "", false, false);
                }
                return $fullscreen_link;
        }

        function determineSourcecodeDownloadScript()
        {
                global $ilCtrl;

                $l = $this->sourcecode_download_script;
                if ($this->sourcecode_download_script == "" && $this->getOutputMode() != "offline")
                {
                        $l = $ilCtrl->getLinkTarget($this, "");
                }
                return $l;
        }

        function getComponentPluginsXML()
        {
                $xml = "";
                if($this->getOutputMode() == "edit")
                {
                        global $ilPluginAdmin;
                        
                        $pl_names = $ilPluginAdmin->getActivePluginsForSlot(IL_COMP_SERVICE,
                                "COPage", "pgcp");
                        foreach ($pl_names as $pl_name)
                        {
                                $plugin = $ilPluginAdmin->getPluginObject(IL_COMP_SERVICE,
                                        "COPage", "pgcp", $pl_name);
                                if ($plugin->isValidParentType($this->getPageObject()->getParentType()))
                                {
                                        $xml.= '<ComponentPlugin Name="'.$plugin->getPluginName().
                                                '" InsertText="'.$plugin->txt(ilPageComponentPlugin::TXT_CMD_INSERT).'" />';
                                }
                        }
                }
                if ($xml != "")
                {
                        $xml = "<ComponentPlugins>".$xml."</ComponentPlugins>";
                }
                return $xml;
        }
        
        
        function &executeCommand()
        {
                global $ilCtrl, $ilTabs, $lng, $ilAccess, $tpl;

                $next_class = $this->ctrl->getNextClass($this);

                $cmd = $this->ctrl->getCmd();
                //$this->ctrl->addTab("clipboard", $this->ctrl->getLinkTargetByClass("ilEditClipboardGUI", "view")
                //      , "view", "ilEditClipboardGUI");
                $this->getTabs();
                
                $ilCtrl->setReturn($this, "edit");
//echo "-".$next_class."-";
                switch($next_class)
                {
                        case 'ilmdeditorgui':
                                //$this->setTabs();
                                $ilTabs->setTabActive("meta_data");
                                include_once 'Services/MetaData/classes/class.ilMDEditorGUI.php';
                                $md_gui =& new ilMDEditorGUI($this->meta_data_rep_obj_id,
                                        $this->meta_data_sub_obj_id, $this->meta_data_type);
                                if (is_object($this->meta_data_observer_obj))
                                {
                                        $md_gui->addObserver($this->meta_data_observer_obj,
                                                $this->meta_data_observer_func, "General");
                                }
                                $this->ctrl->forwardCommand($md_gui);
                                break;
                        
                        case "ileditclipboardgui":
                                //$this->tabs_gui->clearTargets();
                                //$this->ctrl->setReturn($this, "view");
                                $clip_gui = new ilEditClipboardGUI();
                                $clip_gui->setPageBackTitle($this->page_back_title);
                                //$ret =& $clip_gui->executeCommand();
                                $ret =& $this->ctrl->forwardCommand($clip_gui);
                                break;
                                
                        // notes
                        case "ilnotegui":
                                switch($_GET["notes_mode"])
                                {
                                        default:
                                                $html = $this->edit();
                                                $ilTabs->setTabActive("edit");
                                                return $html;
                                }
                                break;
                                
                        case 'ilpublicuserprofilegui':
                                require_once './Services/User/classes/class.ilPublicUserProfileGUI.php';
                                $profile_gui = new ilPublicUserProfileGUI($_GET["user"]);
                                $ret = $this->ctrl->forwardCommand($profile_gui);
                                break;

                        case "ilpageeditorgui":
                                if (!$this->getEnableEditing())
                                {
                                        ilUtil::sendFailure($lng->txt("permission_denied"), true);
                                        $ilCtrl->redirect($this, "preview");
                                }
                                $page_editor = new ilPageEditorGUI($this->getPageObject(), $this);
                                $page_editor->setLocator($this->locator);
                                $page_editor->setHeader($this->getHeader());
                                $page_editor->setPageBackTitle($this->page_back_title);
                                $page_editor->setIntLinkReturn($this->int_link_return);
                                //$page_editor->executeCommand();
                                $ret =& $this->ctrl->forwardCommand($page_editor);
                                break;

                        case 'ilnewsitemgui':
                                include_once("./Services/News/classes/class.ilNewsItemGUI.php");
                                $news_item_gui = new ilNewsItemGUI();
                                $news_item_gui->setEnableEdit(true);
                                $news_item_gui->setContextObjId($this->news_obj_id);
                                $news_item_gui->setContextObjType($this->news_obj_type);
                                $news_item_gui->setContextSubObjId($this->obj->getId());
                                $news_item_gui->setContextSubObjType("pg");

                                $ret = $ilCtrl->forwardCommand($news_item_gui);
                                break;

                                $profile_gui = new ilPublicUserProfileGUI($_GET["user"]);
                                $ret = $this->ctrl->forwardCommand($profile_gui);
                                break;

                        case "ilpropertyformgui":                                                                                                       
                                include_once './Services/Form/classes/class.ilPropertyFormGUI.php';
                                $form = $this->initOpenedContentForm();
                                $this->ctrl->forwardCommand($form);
                                break;
                                
                        case "ilinternallinkgui":
                                $this->lng->loadLanguageModule("content");
                                require_once("./Services/Link/classes/class.ilInternalLinkGUI.php");
                                $link_gui = new ilInternalLinkGUI("Media_Media", 0);
                                //$link_gui->filterLinkType("RepositoryItem");
                                
                                $link_gui->filterLinkType("PageObject_FAQ");
                                $link_gui->filterLinkType("GlossaryItem");
                                $link_gui->filterLinkType("Media_Media");
                                $link_gui->filterLinkType("Media_FAQ");
                                
                                $link_gui->setFilterWhiteList(true);
                                $link_gui->setMode("asynch");                   
                                $ilCtrl->forwardCommand($link_gui);
                                break;

                        case "ilquestioneditgui":
                                $this->setQEditTabs("question");
                                include_once("./Modules/TestQuestionPool/classes/class.ilQuestionEditGUI.php");
                                $edit_gui = new ilQuestionEditGUI();
                                $edit_gui->setPageConfig($this->getPageConfig());                               
//                          $edit_gui->addNewIdListener($this, "setNewQuestionId");
                                $edit_gui->setSelfAssessmentEditingMode(true);
                                $ret = $ilCtrl->forwardCommand($edit_gui);
                                $this->tpl->setContent($ret);
                                break;

                        case 'ilassquestionfeedbackeditinggui':

                                $this->onFeedbackEditingForwarding();

                                // set tabs
                                $this->setQEditTabs("feedback");
                                
                                // load required lang mods
                                $lng->loadLanguageModule("assessment");

                                // set context tabs
                                require_once 'Modules/TestQuestionPool/classes/class.assQuestionGUI.php';
                                require_once 'Modules/TestQuestionPool/classes/class.assQuestion.php';
                                $questionGUI = assQuestionGUI::_getQuestionGUI(assQuestion::_getQuestionType((int) $_GET['q_id']), (int) $_GET['q_id']);
                                $questionGUI->object->setObjId(0);
                                $questionGUI->object->setSelfAssessmentEditingMode(true);
                                $questionGUI->object->setPreventRteUsage($this->getPageConfig()->getPreventRteUsage());

                                // forward to ilAssQuestionFeedbackGUI
                                require_once 'Modules/TestQuestionPool/classes/class.ilAssQuestionFeedbackEditingGUI.php';
                                $gui = new ilAssQuestionFeedbackEditingGUI($questionGUI, $ilCtrl, $ilAccess, $tpl, $ilTabs, $lng);
                                $ilCtrl->forwardCommand($gui);
                                break;

/*                      case "ilpagemultilanggui":
                                $ilCtrl->setReturn($this, "edit");
                                include_once("./Services/COPage/classes/class.ilPageMultiLangGUI.php");
                                $ml_gui = new ilPageMultiLangGUI($this->getPageObject()->getParentType(), $this->getPageObject()->getParentId(),
                                        $this->getPageConfig()->getSinglePageMode());
                                //$this->setTabs("settings");
                                //$this->setSubTabs("cont_multilinguality");
                                $ret = $this->ctrl->forwardCommand($ml_gui);
                                break;*/

                        default:
                                $cmd = $this->ctrl->getCmd("preview");
                                $ret = $this->$cmd();
                                break;
                }
//echo "+$ret+";
                return $ret;
        }

        function setQEditTabs($a_active)
        {               
                global $ilTabs, $ilCtrl, $lng;
                include_once("./Modules/TestQuestionPool/classes/class.assQuestion.php");
                
                $ilTabs->clearTargets();
                
                $ilTabs->setBackTarget($lng->txt("back"),
                        $ilCtrl->getLinkTarget($this, "edit"));
                
                $ilCtrl->setParameterByClass("ilquestioneditgui", "q_id", $_GET["q_id"]);
                $ilTabs->addTab("question", $lng->txt("question"),
                        $ilCtrl->getLinkTargetByClass("ilquestioneditgui", "editQuestion"));

                require_once 'Modules/TestQuestionPool/classes/class.ilAssQuestionFeedbackEditingGUI.php';
                $ilCtrl->setParameterByClass("ilAssQuestionFeedbackEditingGUI", "q_id", $_GET["q_id"]);
                $ilTabs->addTab("feedback", $lng->txt("feedback"),
                        $ilCtrl->getLinkTargetByClass("ilAssQuestionFeedbackEditingGUI", ilAssQuestionFeedbackEditingGUI::CMD_SHOW));
                
                $ilTabs->activateTab($a_active);
        }
        
        function onFeedbackEditingForwarding()
        {
                
        }
        
        
        function deactivatePage()
        {
                $this->getPageObject()->setActivationStart(null);
                $this->getPageObject()->setActivationEnd(null);
                $this->getPageObject()->setActive(false);
                $this->getPageObject()->update();
                $this->ctrl->redirect($this, "edit");
        }

        function activatePage()
        {
                $this->getPageObject()->setActivationStart(null);
                $this->getPageObject()->setActivationEnd(null);
                $this->getPageObject()->setActive(true);
                $this->getPageObject()->update();
                $this->ctrl->redirect($this, "edit");
        }

        function showPage()
        {
                global $tree, $ilUser, $lng, $ilCtrl, $ilSetting, $ilTabs;

                // jquery and jquery ui are always provided for components
                include_once("./Services/jQuery/classes/class.iljQueryUtil.php");
                iljQueryUtil::initjQuery();
                iljQueryUtil::initjQueryUI();

//              $this->initSelfAssessmentRendering();
                
                include_once("./Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php");
                ilObjMediaObjectGUI::includePresentationJS($GLOBALS["tpl"]);

                $GLOBALS["tpl"]->addJavaScript("./Services/COPage/js/ilCOPagePres.js");

                // needed for overlays in iim
                include_once("./Services/UIComponent/Overlay/classes/class.ilOverlayGUI.php");
                ilOverlayGUI::initJavascript();
                
                include_once("./Services/MediaObjects/classes/class.ilPlayerUtil.php");
                ilPlayerUtil::initMediaElementJs($GLOBALS["tpl"]);
                
                // init template
                //if($this->outputToTemplate())
                //{
                        if($this->getOutputMode() == "edit")
                        {
//echo ":".$this->getTemplateTargetVar().":";
                                $tpl = new ilTemplate("tpl.page_edit_wysiwyg.html", true, true, "Services/COPage");
                                //$this->tpl->addBlockFile($this->getTemplateTargetVar(), "adm_content", "tpl.page_edit_wysiwyg.html", "Services/COPage");

                                // to do: status dependent class
                                $tpl->setVariable("CLASS_PAGE_TD", "ilc_Page");

                                // user comment
                                if ($this->isEnabledChangeComments())
                                {
                                        $tpl->setCurrentBlock("change_comment");
                                        $tpl->setVariable("TXT_ADD_COMMENT", $this->lng->txt("cont_add_change_comment"));
                                        $tpl->parseCurrentBlock();
                                }

                                $tpl->setVariable("WYSIWYG_ACTION",
                                        $ilCtrl->getFormActionByClass("ilpageeditorgui", "", "", true));

                                // determine media, html and javascript mode
                                $sel_media_mode = ($ilUser->getPref("ilPageEditor_MediaMode") == "disable")
                                        ? "disable"
                                        : "enable";
                                $sel_html_mode = ($ilUser->getPref("ilPageEditor_HTMLMode") == "disable")
                                        ? "disable"
                                        : "enable";
                                $sel_js_mode = "disable";
                                //if($ilSetting->get("enable_js_edit", 1))
                                //{
                                        $sel_js_mode = (ilPageEditorGUI::_doJSEditing())
                                                ? "enable"
                                                : "disable";
                                //}

                                // show prepending html
                                $tpl->setVariable("PREPENDING_HTML", $this->getPrependingHtml());
                                $tpl->setVariable("TXT_CONFIRM_DELETE", $lng->txt("cont_confirm_delete"));

                                // presentation view
                                if ($this->getViewPageLink() != "")
                                {
                                        $ilTabs->addNonTabbedLink("pres_view", $this->lng->txt("cont_presentation_view"),
                                                $this->getViewPageLink(), $this->getViewPageTarget());
                                }

                                // show actions drop down
                                $this->addActionsMenu($tpl, $sel_media_mode, $sel_html_mode, $sel_js_mode);

                                // get js files for JS enabled editing
                                if ($sel_js_mode == "enable")
                                {
                                        $this->insertHelp($tpl);
                                        include_once("./Services/YUI/classes/class.ilYuiUtil.php");
                                        ilYuiUtil::initDragDrop();
                                        ilYuiUtil::initConnection();
                                        ilYuiUtil::initPanel(false);
                                        $GLOBALS["tpl"]->addJavaScript("./Services/COPage/js/ilcopagecallback.js");
                                        $GLOBALS["tpl"]->addJavascript("Services/COPage/js/page_editing.js");

                                        include_once './Services/Style/classes/class.ilObjStyleSheet.php';
                                        $GLOBALS["tpl"]->addOnloadCode("var preloader = new Image();
                                                preloader.src = './templates/default/images/loader.svg';
                                                ilCOPage.setContentCss('".
                                                ilObjStyleSheet::getContentStylePath((int) $this->getStyleId()).
                                                ", ".ilUtil::getStyleSheetLocation().
                                                ", ./Services/COPage/css/tiny_extra.css".
                                                "')");

                                        //$GLOBALS["tpl"]->addJavascript("Services/RTE/tiny_mce_3_3_9_2/il_tiny_mce_src.js");
                                        $GLOBALS["tpl"]->addJavascript("Services/COPage/tiny/4_1_5/tinymce.js");
                                        $tpl->touchBlock("init_dragging");

                                        $cfg = $this->getPageConfig();
                                        $tpl->setVariable("IL_TINY_MENU",
                                                self::getTinyMenu(
                                                $this->getPageObject()->getParentType(),
                                                $cfg->getEnableInternalLinks(),
                                                $cfg->getEnableWikiLinks(),
                                                $cfg->getEnableKeywords(),
                                                $this->getStyleId(), true, true,
                                                $cfg->getEnableAnchors()
                                                ));
                                        
                                        // add int link parts
                                        include_once("./Services/Link/classes/class.ilInternalLinkGUI.php");
                                        $tpl->setCurrentBlock("int_link_prep");
                                        $tpl->setVariable("INT_LINK_PREP", ilInternalLinkGUI::getInitHTML(
                                                $ilCtrl->getLinkTargetByClass(array("ilpageeditorgui", "ilinternallinkgui"),
                                                                "", false, true, false)));
                                        $tpl->parseCurrentBlock();

                                        include_once("./Services/YUI/classes/class.ilYuiUtil.php");
                                        ilYuiUtil::initConnection();
                                        $GLOBALS["tpl"]->addJavaScript("./Services/UIComponent/Explorer/js/ilExplorer.js");

                                }

                                // multiple actions
                                $cnt_pcs = $this->getPageObject()->countPageContents();
                                if ($cnt_pcs > 1 ||
                                        ($this->getPageObject()->getParentType() != "qpl" && $cnt_pcs > 0))
                                {
                                        $tpl->setCurrentBlock("multi_actions");
                                        if ($sel_js_mode == "enable")
                                        {
                                                $tpl->setVariable("ONCLICK_DE_ACTIVATE_SELECTED", 'onclick="return ilEditMultiAction(\'activateSelected\');"');
                                                $tpl->setVariable("ONCLICK_DELETE_SELECTED", 'onclick="return ilEditMultiAction(\'deleteSelected\');"');
                                                $tpl->setVariable("ONCLICK_ASSIGN_CHARACTERISTIC", 'onclick="return ilEditMultiAction(\'assignCharacteristicForm\');"');
                                                $tpl->setVariable("ONCLICK_COPY_SELECTED", 'onclick="return ilEditMultiAction(\'copySelected\');"');
                                                $tpl->setVariable("ONCLICK_CUT_SELECTED", 'onclick="return ilEditMultiAction(\'cutSelected\');"');
                                                $tpl->setVariable("TXT_SELECT_ALL", $this->lng->txt("select_all"));
                                                $tpl->setVariable("ONCLICK_SELECT_ALL", 'onclick="return ilEditMultiAction(\'selectAll\');"');
                                        }
                                        $tpl->setVariable("TXT_DE_ACTIVATE_SELECTED", $this->lng->txt("cont_ed_enable"));
                                        $tpl->setVariable("TXT_ASSIGN_CHARACTERISTIC", $this->lng->txt("cont_assign_characteristic"));
                                        $tpl->setVariable("TXT_DELETE_SELECTED", $this->lng->txt("cont_delete_selected"));
                                        $tpl->setVariable("TXT_COPY_SELECTED", $this->lng->txt("copy"));
                                        $tpl->setVariable("TXT_CUT_SELECTED", $this->lng->txt("cut"));
                                        $tpl->setVariable("IMG_ARROW", ilUtil::getImagePath("arrow_downright.svg"));
                                        $tpl->parseCurrentBlock();
                                }
                        }
                        else
                        {
                                // presentation or preview here
                                
                                $tpl = new ilTemplate("tpl.page.html", true, true, "Services/COPage");
                                if ($this->getEnabledPageFocus())
                                {
                                        $tpl->touchBlock("page_focus");
                                }
                                
                                include_once("./Services/User/classes/class.ilUserUtil.php");
                                
                                // presentation
                                if( $this->isPageContainerToBeRendered() )
                                {
                                        $tpl->touchBlock("page_container_1");
                                        $tpl->touchBlock("page_container_2");
                                        $tpl->touchBlock("page_container_3");
                                }

                                // history
                                $c_old_nr = $this->getPageObject()->old_nr;
                                if ($c_old_nr > 0 || $this->getCompareMode() || $_GET["history_mode"] == 1)
                                {
                                        $hist_info =
                                                $this->getPageObject()->getHistoryInfo($c_old_nr);

                                        if (!$this->getCompareMode())
                                        {
                                                $ilCtrl->setParameter($this, "history_mode", "1");

                                                // previous revision
                                                if (is_array($hist_info["previous"]))
                                                {
                                                        $tpl->setCurrentBlock("previous_rev");
                                                        $tpl->setVariable("TXT_PREV_REV", $lng->txt("cont_previous_rev"));
                                                        $ilCtrl->setParameter($this, "old_nr", $hist_info["previous"]["nr"]);
                                                        $tpl->setVariable("HREF_PREV",
                                                                $ilCtrl->getLinkTarget($this, "preview"));
                                                        $tpl->parseCurrentBlock();
                                                }
                                                else
                                                {
                                                        $tpl->setCurrentBlock("previous_rev_disabled");
                                                        $tpl->setVariable("TXT_PREV_REV", $lng->txt("cont_previous_rev"));
                                                        $tpl->parseCurrentBlock();
                                                }
                                                
                                                // next revision
                                                if ($c_old_nr > 0)
                                                {
                                                        $tpl->setCurrentBlock("next_rev");
                                                        $tpl->setVariable("TXT_NEXT_REV", $lng->txt("cont_next_rev"));
                                                        $ilCtrl->setParameter($this, "old_nr", $hist_info["next"]["nr"]);
                                                        $tpl->setVariable("HREF_NEXT",
                                                                $ilCtrl->getLinkTarget($this, "preview"));
                                                        $tpl->parseCurrentBlock();

                                                        // latest revision
                                                        $tpl->setCurrentBlock("latest_rev");
                                                        $tpl->setVariable("TXT_LATEST_REV", $lng->txt("cont_latest_rev"));
                                                        $ilCtrl->setParameter($this, "old_nr", "");
                                                        $tpl->setVariable("HREF_LATEST",
                                                                $ilCtrl->getLinkTarget($this, "preview"));
                                                        $tpl->parseCurrentBlock();
                                                }

                                                $ilCtrl->setParameter($this, "history_mode", "");

                                                // rollback
                                                if ($c_old_nr > 0 && $ilUser->getId() != ANONYMOUS_USER_ID)
                                                {
                                                        $tpl->setCurrentBlock("rollback");
                                                        $ilCtrl->setParameter($this, "old_nr", $c_old_nr);
                                                        $tpl->setVariable("HREF_ROLLBACK",
                                                                $ilCtrl->getLinkTarget($this, "rollbackConfirmation"));
                                                        $ilCtrl->setParameter($this, "old_nr", "");
                                                        $tpl->setVariable("TXT_ROLLBACK",
                                                                $lng->txt("cont_rollback"));
                                                        $tpl->parseCurrentBlock();
                                                }
                                        }
                                        
                                        $tpl->setCurrentBlock("hist_nav");
                                        $tpl->setVariable("TXT_REVISION", $lng->txt("cont_revision"));
                                        $tpl->setVariable("VAL_REVISION_DATE",
                                                ilDatePresentation::formatDate(new ilDateTime($hist_info["current"]["hdate"], IL_CAL_DATETIME)));
                                        $tpl->setVariable("VAL_REV_USER",
                                                ilUserUtil::getNamePresentation($hist_info["current"]["user_id"]));
                                        $tpl->parseCurrentBlock();
                                }
                        }
                        if ($this->getOutputMode() != IL_PAGE_PRESENTATION &&
                                $this->getOutputMode() != IL_PAGE_OFFLINE &&
                                $this->getOutputMode() != IL_PAGE_PREVIEW &&
                                $this->getOutputMode() != IL_PAGE_PRINT)
                        {
                                $tpl->setVariable("FORMACTION", $this->ctrl->getFormActionByClass("ilpageeditorgui"));
                        }

                        // output media object edit list (of media links)
                        if($this->getOutputMode() == "edit")
                        {
                                $links = ilInternalLink::_getTargetsOfSource($this->obj->getParentType().":pg",
                                        $this->obj->getId(), $this->obj->getLanguage());
                                $mob_links = array();
                                foreach($links as $link)
                                {
                                        if ($link["type"] == "mob")
                                        {
                                                if (ilObject::_exists($link["id"]) && ilObject::_lookupType($link["id"]) == "mob")
                                                {
                                                        $mob_links[$link["id"]] = ilObject::_lookupTitle($link["id"])." [".$link["id"]."]";
                                                }
                                        }
                                }

                                // linked media objects
                                if (count($mob_links) > 0)
                                {
                                        $tpl->setCurrentBlock("med_link");
                                        $tpl->setVariable("TXT_LINKED_MOBS", $this->lng->txt("cont_linked_mobs"));
                                        $tpl->setVariable("SEL_MED_LINKS",
                                                ilUtil::formSelect(0, "mob_id", $mob_links, false, true));
                                        $tpl->setVariable("TXT_EDIT_MEDIA", $this->lng->txt("cont_edit_mob"));
                                        $tpl->setVariable("TXT_COPY_TO_CLIPBOARD", $this->lng->txt("cont_copy_to_clipboard"));
                                        //$this->tpl->setVariable("TXT_COPY_TO_POOL", $this->lng->txt("cont_copy_to_mediapool"));
                                        $tpl->parseCurrentBlock();
                                }
                                
                                // content snippets used
                                include_once("./Services/COPage/classes/class.ilPCContentInclude.php");
                                $snippets = ilPCContentInclude::collectContentIncludes($this->getPageObject(),
                                        $this->getPageObject()->getDomDoc());
                                if (count($snippets) > 0)
                                {
                                        foreach ($snippets as $s)
                                        {
                                                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPage.php");
                                                $sn_arr[$s["id"]] = ilMediaPoolPage::lookupTitle($s["id"]);
                                        }
                                        $tpl->setCurrentBlock("med_link");
                                        $tpl->setVariable("TXT_CONTENT_SNIPPETS_USED", $this->lng->txt("cont_snippets_used"));
                                        $tpl->setVariable("SEL_SNIPPETS",
                                                ilUtil::formSelect(0, "ci_id", $sn_arr, false, true));
                                        $tpl->setVariable("TXT_SHOW_INFO", $this->lng->txt("cont_show_info"));
                                        $tpl->parseCurrentBlock();
                                }
                                
                                // scheduled activation?
                                if (!$this->getPageObject()->getActive() &&
                                        $this->getPageObject()->getActivationStart() != "" &&
                                        $this->getPageConfig()->getEnableScheduledActivation())
                                {
                                        $tpl->setCurrentBlock("activation_txt");
                                        $tpl->setVariable("TXT_SCHEDULED_ACTIVATION", $lng->txt("cont_scheduled_activation"));
                                        $tpl->setVariable("SA_FROM",
                                                ilDatePresentation::formatDate(
                                                new ilDateTime($this->getPageObject()->getActivationStart(),
                                                IL_CAL_DATETIME)));
                                        $tpl->setVariable("SA_TO",
                                                ilDatePresentation::formatDate(
                                                new ilDateTime($this->getPageObject()->getActivationEnd(),
                                                IL_CAL_DATETIME)));
                                        $tpl->parseCurrentBlock();
                                }
                        }

                        if ($_GET["reloadTree"] == "y")
                        {
                                $tpl->setCurrentBlock("reload_tree");
                                if ($this->obj->getParentType() == "dbk")
                                {
                                        $tpl->setVariable("LINK_TREE",
                                                $this->ctrl->getLinkTargetByClass("ilobjdlbookgui", "explorer", "", false, false));
                                }
                                else
                                {
                                        $tpl->setVariable("LINK_TREE",
                                                $this->ctrl->getLinkTargetByClass("ilobjlearningmodulegui", "explorer", "", false, false));
                                }
                                $tpl->parseCurrentBlock();
                        }
//              }
                // get content
                $builded = $this->obj->buildDom();

                // manage hierarchical ids
                if($this->getOutputMode() == "edit")
                {
                        
                        // add pc ids, if necessary
                        if (!$this->obj->checkPCIds())
                        {
                                $this->obj->insertPCIds();
                                $this->obj->update(true, true);
                        }
                        
                        $this->obj->addFileSizes();
                        $this->obj->addHierIDs();

                        $hids = $this->obj->getHierIds();
                        $row1_ids = $this->obj->getFirstRowIds();
                        $col1_ids = $this->obj->getFirstColumnIds();
                        $litem_ids = $this->obj->getListItemIds();
                        $fitem_ids = $this->obj->getFileItemIds();

                        // standard menues
                        $hids = $this->obj->getHierIds();
                        foreach($hids as $hid)
                        {
                                $tpl->setCurrentBlock("add_dhtml");
                                $tpl->setVariable("CONTEXTMENU", "contextmenu_".$hid);
                                $tpl->parseCurrentBlock();
                        }

                        // column menues for tables
                        foreach($col1_ids as $hid)
                        {
                                $tpl->setCurrentBlock("add_dhtml");
                                $tpl->setVariable("CONTEXTMENU", "contextmenu_r".$hid);
                                $tpl->parseCurrentBlock();
                        }

                        // row menues for tables
                        foreach($row1_ids as $hid)
                        {
                                $tpl->setCurrentBlock("add_dhtml");
                                $tpl->setVariable("CONTEXTMENU", "contextmenu_c".$hid);
                                $tpl->parseCurrentBlock();
                        }

                        // list item menues
                        foreach($litem_ids as $hid)
                        {
                                $tpl->setCurrentBlock("add_dhtml");
                                $tpl->setVariable("CONTEXTMENU", "contextmenu_i".$hid);
                                $tpl->parseCurrentBlock();
                        }

                        // file item menues
                        foreach($fitem_ids as $hid)
                        {
                                $tpl->setCurrentBlock("add_dhtml");
                                $tpl->setVariable("CONTEXTMENU", "contextmenu_i".$hid);
                                $tpl->parseCurrentBlock();
                        }
                }
                else
                {
                        $this->obj->addFileSizes();
                }

//echo "<br>-".htmlentities($this->obj->getXMLContent())."-<br><br>";
//echo "<br>-".htmlentities($this->getLinkXML())."-";

                // set default link xml, if nothing was set yet
                if (!$this->link_xml_set)
                {
                        $this->setDefaultLinkXml();
                }

                //$content = $this->obj->getXMLFromDom(false, true, true,
                //      $this->getLinkXML().$this->getQuestionXML().$this->getComponentPluginsXML());
                $link_xml = $this->getLinkXML();

                // disable/enable auto margins
                if ($this->getStyleId() > 0)
                {
                        if (ilObject::_lookupType($this->getStyleId()) == "sty")
                        {
                                include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                                $style = new ilObjStyleSheet($this->getStyleId());
                                $template_xml = $style->getTemplateXML();
                                $disable_auto_margins = "n";
                                if ($style->lookupStyleSetting("disable_auto_margins"))
                                {
                                        $disable_auto_margins = "y";
                                }
                        }
                }

                if ($this->getAbstractOnly())
                {
                        $content = "<dummy><PageObject><PageContent><Paragraph>".
                                $this->obj->getFirstParagraphText().$link_xml.
                                "</Paragraph></PageContent></PageObject></dummy>";
                }
                else
                {
                        $content = $this->obj->getXMLFromDom(false, true, true,
                                $link_xml.$this->getQuestionXML().$template_xml.$this->getComponentPluginsXML());
                }

                // check validation errors
                if($builded !== true)
                {
                        $this->displayValidationError($builded);
                }
                else
                {
                        $this->displayValidationError($_SESSION["il_pg_error"]);
                }
                unset($_SESSION["il_pg_error"]);

                if(isset($_SESSION["citation_error"]))
                {
                        ilUtil::sendFailure($this->lng->txt("cont_citation_selection_not_valid"));
                        ilSession::clear("citation_error");
                }

                // get title
                $pg_title = $this->getPresentationTitle();

                $col_path = ilUtil::getImagePath("col.svg");
                $row_path = ilUtil::getImagePath("row.svg");
                $item_path = ilUtil::getImagePath("item.svg");

                if ($this->getOutputMode() != "offline")
                {
                        $enlarge_path = ilUtil::getImagePath("enlarge.svg");
                        $wb_path = ilUtil::getWebspaceDir("output")."/";
                }
                else
                {
                        $enlarge_path = "images/enlarge.svg";
                        $wb_path = "";
                }
                $pg_title_class = ($this->getOutputMode() == "print")
                        ? "ilc_PrintPageTitle"
                        : "";

                // page splitting only for learning modules and
                // digital books
                $enable_split_new = ($this->obj->getParentType() == "lm" ||
                        $this->obj->getParentType() == "dbk")
                        ? "y"
                        : "n";

                // page splitting to next page only for learning modules and
                // digital books if next page exists in tree
                if (($this->obj->getParentType() == "lm" ||
                        $this->obj->getParentType() == "dbk") &&
                        ilObjContentObject::hasSuccessorPage($this->obj->getParentId(),
                                $this->obj->getId()))
                {
                        $enable_split_next = "y";
                }
                else
                {
                        $enable_split_next = "n";
                }

                $img_path = ilUtil::getImagePath("", false, $this->getOutputMode(), $this->getOutputMode() == "offline");

                
                if ($this->getPageConfig()->getEnablePCType("Tabs"))
                {
                        //include_once("./Services/YUI/classes/class.ilYuiUtil.php");
                        //ilYuiUtil::initTabView();
                        include_once("./Services/Accordion/classes/class.ilAccordionGUI.php");
                        ilAccordionGUI::addJavaScript();
                        ilAccordionGUI::addCss();
                }

                $file_download_link = $this->determineFileDownloadLink();
                $fullscreen_link = $this->determineFullscreenLink();
                $this->sourcecode_download_script = $this->determineSourcecodeDownloadScript();
                
                // default values for various parameters (should be used by
                // all instances in the future)
                $media_mode = ($this->getOutputMode() == "edit")
                        ? $ilUser->getPref("ilPageEditor_MediaMode")
                        : "enable";

                include_once("./Modules/LearningModule/classes/class.ilEditClipboard.php");
                $paste = (ilEditClipboard::getAction() == "copy" &&
                        $this->getOutputMode() == "edit");
                
                include_once("./Services/MediaObjects/classes/class.ilPlayerUtil.php");

                $flv_video_player = ($this->getOutputMode() != "offline")
                        ? ilPlayerUtil::getFlashVideoPlayerFilename(true)
                        : ilPlayerUtil::getFlashVideoPlayerFilename(true);
                        
                $cfg = $this->getPageConfig();

                include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");

                // added UTF-8 encoding otherwise umlaute are converted too
                include_once("./Services/Maps/classes/class.ilMapUtil.php");
                $params = array ('mode' => $this->getOutputMode(), 'pg_title' => htmlentities($pg_title,ENT_QUOTES,"UTF-8"),
                                                 'enable_placeholder' => $cfg->getEnablePCType("PlaceHolder") ? "y" : "n",
                                                 'pg_id' => $this->obj->getId(), 'pg_title_class' => $pg_title_class,
                                                 'webspace_path' => $wb_path, 'enlarge_path' => $enlarge_path,
                                                 'img_col' => $col_path,
                                                 'img_row' => $row_path,
                                                 'img_item' => $item_path,
                                                 'enable_split_new' => $enable_split_new,
                                                 'enable_split_next' => $enable_split_next,
                                                 'link_params' => $this->link_params,
                                                 'file_download_link' => $file_download_link,
                                                 'fullscreen_link' => $fullscreen_link,
                                                 'img_path' => $img_path,
                                                 'parent_id' => $this->obj->getParentId(),
                                                 'download_script' => $this->sourcecode_download_script,
                                                 'encoded_download_script' => urlencode($this->sourcecode_download_script),
                                                 // digilib
                                                 'bib_id' => $this->getBibId(),'citation' => (int) $this->isEnabledCitation(),
                                                 'pagebreak' => $this->lng->txt('dgl_pagebreak'),
                                                 'page' => $this->lng->txt('page'),
                                                 'citate_page' => $this->lng->txt('citate_page'),
                                                 'citate_from' => $this->lng->txt('citate_from'),
                                                 'citate_to' => $this->lng->txt('citate_to'),
                                                 'citate' => $this->lng->txt('citate'),
                                                 'enable_rep_objects' => $cfg->getEnablePCType("Resources") ? "y" : "n",
                                                 'enable_login_page' => $cfg->getEnablePCType("LoginPageElement") ? "y" : "n",
                                                 'enable_map' => ($cfg->getEnablePCType("Map") && ilMapUtil::isActivated()) ? "y" : "n",
                                                 'enable_tabs' => $cfg->getEnablePCType("Tabs") ? "y" : "n",
                                                 'enable_sa_qst' => $cfg->getEnableSelfAssessment() ? "y" : "n",
                                                 'enable_file_list' => $cfg->getEnablePCType("FileList") ? "y" : "n",
                                                 'enable_content_includes' => $cfg->getEnablePCType("ContentInclude") ? "y" : "n",
                                                 'enable_content_templates' => (count($this->getPageObject()->getContentTemplates()) > 0) ? "y" : "n",
                                                 'paste' => $paste ? "y" : "n",
                                                 'media_mode' => $media_mode,
                                                 'javascript' => $sel_js_mode,
                                                 'paragraph_plugins' => $paragraph_plugin_string,
                                                 'disable_auto_margins' => $disable_auto_margins,
                                                 'page_toc' => $cfg->getEnablePageToc() ? "y" : "n",
                                                 'enable_profile' =>  $cfg->getEnablePCType("Profile") ? "y" : "n",
                                                 'enable_verification' =>  $cfg->getEnablePCType("Verification") ? "y" : "n",
                                                 'enable_blog' =>  $cfg->getEnablePCType("Blog") ? "y" : "n",
                                                 'enable_skills' =>  $cfg->getEnablePCType("Skills") ? "y" : "n",
                                                 'enable_qover' =>  $cfg->getEnablePCType("QuestionOverview") ? "y" : "n",
                                                 'enable_consultation_hours' =>  $cfg->getEnablePCType("ConsultationHours") ? "y" : "n",
                                                 'enable_my_courses' =>  $cfg->getEnablePCType("MyCourses") ? "y" : "n",
                                                 'enable_amd_page_list' =>  $cfg->getEnablePCType("AMDPageList") ? "y" : "n",
                                                 'enable_html_mob' =>  ilObjMediaObject::isTypeAllowed("html") ? "y" : "n",
                                                 'flv_video_player' => $flv_video_player
                                                );
                if($this->link_frame != "")             // todo other link types
                        $params["pg_frame"] = $this->link_frame;

                //$content = str_replace("&nbsp;", "", $content);
                
                // this ensures that cache is emptied with every update
                $params["version"] = ILIAS_VERSION;
                // ensure no cache hit, if included files/media objects have been changed
                $params["incl_elements_date"] = $this->obj->getLastUpdateOfIncludedElements();

                // run xslt
                $md5 = md5(serialize($params).$link_xml.$template_xml);
                
//$a = microtime();
                
                // check cache (same parameters, non-edit mode and rendered time
                // > last change
                if (($this->getOutputMode() == "preview" || $this->getOutputMode() == "presentation") &&
                        !$this->getCompareMode() &&
                        !$this->getAbstractOnly() &&
                        $md5 == $this->obj->getRenderMd5() &&
                        ($this->obj->getLastChange() < $this->obj->getRenderedTime()) &&
                        $this->obj->getRenderedTime() != "" &&
                        $this->obj->old_nr == 0)
                {
                        // cache hit
                        $output = $this->obj->getRenderedContent();
                }
                else
                {
                        $xsl = file_get_contents("./Services/COPage/xsl/page.xsl");

                        $args = array( '/_xml' => $content, '/_xsl' => $xsl );
                        $xh = xslt_create();
                        //              echo "<b>XSLT</b>:".htmlentities($xsl).":<br>";
                        //              echo "mode:".$this->getOutputMode().":<br>";
                        $output = xslt_process($xh, "arg:/_xml","arg:/_xsl", NULL, $args, $params);
                        
                        if (($this->getOutputMode() == "presentation" || $this->getOutputMode() == "preview")
                                && !$this->getAbstractOnly()
                                && $this->obj->old_nr == 0)
                        {
//echo "writerenderedcontent";
                                $this->obj->writeRenderedContent($output, $md5);
                        }
                        //echo xslt_error($xh);
                        xslt_free($xh);
                }

//$b = microtime();
//echo "$a - $b";
//echo "<pre>".htmlentities($output)."</pre>";
                
                // unmask user html
                if (($this->getOutputMode() != "edit" ||
                        $ilUser->getPref("ilPageEditor_HTMLMode") != "disable")
                        && !$this->getPageConfig()->getPreventHTMLUnmasking())
                {
                        $output = str_replace("&lt;","<",$output);
                        $output = str_replace("&gt;",">",$output);
                }
                $output = str_replace("&amp;", "&", $output);
                
                $output = ilUtil::insertLatexImages($output);

                // insert page snippets
                $output = $this->insertContentIncludes($output);

                // insert resource blocks
                $output = $this->insertResources($output);

                // insert page toc
                if ($this->getPageConfig()->getEnablePageToc())
                {
                        $output = $this->insertPageToc($output);
                }
                
                // insert advanced output trigger
                $output = $this->insertAdvTrigger($output);

                // workaround for preventing template engine
                // from hiding paragraph text that is enclosed
                // in curly brackets (e.g. "{a}", see ilLMEditorGUI::executeCommand())
                $output = $this->replaceCurlyBrackets($output);

                // remove all newlines (important for code / pre output)
                $output = str_replace("\n", "", $output);

//echo htmlentities($output);
                $output = $this->postOutputProcessing($output);
//echo htmlentities($output);
                if($this->getOutputMode() == "edit" &&
                        !$this->getPageObject()->getActive($this->getPageConfig()->getEnableScheduledActivation()))
                {
                        $output = '<div class="il_editarea_disabled">'.$output.'</div>';
                }
                
                // for all page components...
                include_once("./Services/COPage/classes/class.ilCOPagePCDef.php");
                $defs = ilCOPagePCDef::getPCDefinitions();
                foreach ($defs as $def)
                {
                        ilCOPagePCDef::requirePCClassByName($def["name"]);
                        $pc_class = $def["pc_class"];
                        $pc_obj = new $pc_class($this->getPageObject());
                        
                        // post xsl page content modification by pc elements
                        $output = $pc_obj->modifyPageContentPostXsl($output, $this->getOutputMode());
                        
                        // javascript files
                        $js_files = $pc_obj->getJavascriptFiles($this->getOutputMode());
                        foreach ($js_files as $js)
                        {
                                $GLOBALS["tpl"]->addJavascript($js);
                        }

                        // css files
                        $css_files = $pc_obj->getCssFiles($this->getOutputMode());
                        foreach ($css_files as $css)
                        {
                                $GLOBALS["tpl"]->addCss($css);
                        }

                        // onload code
                        $onload_code = $pc_obj->getOnloadCode($this->getOutputMode());
                        foreach ($onload_code as $code)
                        {
                                $GLOBALS["tpl"]->addOnloadCode($code);
                        }
                }
                
//              $output = $this->selfAssessmentRendering($output);

                // output
                if ($ilCtrl->isAsynch() && !$this->getRawPageContent() &&
                        $this->getOutputMode() == "edit")
                {
                        // e.g. ###3:110dad8bad6df8620071a0a693a2d328###
                        if ($_GET["updated_pc_id_str"] != "")
                        {
                                echo $_GET["updated_pc_id_str"];
                        }
                        $tpl->setVariable($this->getTemplateOutputVar(), $output);
                        $tpl->setCurrentBlock("edit_page");
                        $tpl->parseCurrentBlock();
                        echo $tpl->get("edit_page");
                        exit;
                }
                if ($this->outputToTemplate())
                {
                        $tpl->setVariable($this->getTemplateOutputVar(), $output);
                        $this->tpl->setVariable($this->getTemplateTargetVar(), $tpl->get());
            return $output;
                }
                else
                {
                        if ($this->getRawPageContent())         // e.g. needed in glossaries
                        {
                                return $output;
                        }
                        else
                        {
                                $tpl->setVariable($this->getTemplateOutputVar(), $output);
                                return $tpl->get();
                        }
                }
        }

        function replaceCurlyBrackets($output)
        {
//echo "<br><br>".htmlentities($output);
                
                while (is_int($start = strpos($output, "<!--ParStart-->")) &&
                        is_int($end = strpos($output, "<!--ParEnd-->", $start)))
                {
                        $output = substr($output, 0, $start).
                                str_replace(array("{","}"), array("&#123;","&#125;"),
                                        substr($output, $start + 15, $end - ($start + 15))).
                                substr($output, $end + 13);
                }

//              $output = str_replace("{", "&#123;", $output);
//              $output = str_replace("}", "&#125;", $output);
//echo "<br><br>".htmlentities($output);
                return $output;
        }
        
        protected function getActivationCaptions()
        {
                global $lng;
                
                return array("deactivatePage" => $lng->txt("cont_deactivate_page"),
                                "activatePage" => $lng->txt("cont_activate_page"));
        }       
        
        function addActionsMenu($a_tpl, $sel_media_mode, $sel_html_mode, $sel_js_mode)
        {
                global $lng, $ilCtrl;

                // actions
                include_once("./Services/UIComponent/AdvancedSelectionList/classes/class.ilAdvancedSelectionListGUI.php");

                // activate/deactivate
                $list = new ilAdvancedSelectionListGUI();
                $list->setListTitle($lng->txt("actions"));
                $list->setId("copage_act");
                $entries = false;
                if ($this->getPageConfig()->getEnableActivation())
                {
                        $entries = true;
                        $captions = $this->getActivationCaptions();                     
                        if ($this->getPageObject()->getActive())
                        {
                                $list->addItem($captions["deactivatePage"], "",
                                        $ilCtrl->getLinkTarget($this, "deactivatePage"));
                        }
                        else
                        {
                                $list->addItem($captions["activatePage"], "",
                                        $ilCtrl->getLinkTarget($this, "activatePage"));
                        }
                        
                        $a_tpl->setVariable("PAGE_ACTIONS", $list->getHTML());
                }

                // initially opened content
                if ($this->getPageConfig()->getUseAttachedContent())
                {
                        $entries = true;
                        $list->addItem($lng->txt("cont_initial_attached_content"), "",
                                $ilCtrl->getLinkTarget($this, "initialOpenedContent"));
                }
                
                // multi-lang actions
                if ($this->addMultiLangActionsAndInfo($list, $a_tpl))
                {
                        $entries = true;
                }
                
                if ($entries)
                {
                        $a_tpl->setVariable("PAGE_ACTIONS", $list->getHTML());
                }

                $lng->loadLanguageModule("content");
                $list = new ilAdvancedSelectionListGUI();
                $list->setListTitle($lng->txt("cont_edit_mode"));
                $list->setId("copage_ed_mode");

                // media mode
                if ($sel_media_mode == "enable")
                {
                        $ilCtrl->setParameter($this, "media_mode", "disable");
                        $list->addItem($lng->txt("cont_deactivate_media"), "",
                                $ilCtrl->getLinkTarget($this, "setEditMode"));
                }
                else
                {
                        $ilCtrl->setParameter($this, "media_mode", "enable");
                        $list->addItem($lng->txt("cont_activate_media"), "",
                                $ilCtrl->getLinkTarget($this, "setEditMode"));
                }
                $ilCtrl->setParameter($this, "media_mode", "");

                // html mode
                if (!$this->getPageConfig()->getPreventHTMLUnmasking())
                {
                        if ($sel_html_mode == "enable")
                        {
                                $ilCtrl->setParameter($this, "html_mode", "disable");
                                $list->addItem($lng->txt("cont_deactivate_html"), "",
                                        $ilCtrl->getLinkTarget($this, "setEditMode"));
                        }
                        else
                        {
                                $ilCtrl->setParameter($this, "html_mode", "enable");
                                $list->addItem($lng->txt("cont_activate_html"), "",
                                        $ilCtrl->getLinkTarget($this, "setEditMode"));
                        }
                }
                $ilCtrl->setParameter($this, "html_mode", "");

                // js mode
                if ($sel_js_mode == "enable")
                {
                        $ilCtrl->setParameter($this, "js_mode", "disable");
                        $list->addItem($lng->txt("cont_deactivate_js"), "",
                                $ilCtrl->getLinkTarget($this, "setEditMode"));
                }
                else
                {
                        $ilCtrl->setParameter($this, "js_mode", "enable");
                        $list->addItem($lng->txt("cont_activate_js"), "",
                                $ilCtrl->getLinkTarget($this, "setEditMode"));
                }
                $ilCtrl->setParameter($this, "js_mode", "");

                $a_tpl->setVariable("EDIT_MODE", $list->getHTML());
        }

        function addMultiLangActionsAndInfo($a_list, $a_tpl)
        {
                global $lng, $ilCtrl;
                
                $any_items = false;
                
                $cfg = $this->getPageConfig();
                
                // general multi lang support and single page mode?
                if ($cfg->getMultiLangSupport())
                {
                        //include_once("./Services/COPage/classes/class.ilPageMultiLang.php");
                        //$ml = new ilPageMultiLang($this->getPageObject()->getParentType(),
                        //      $this->getPageObject()->getParentId());

                        include_once("./Services/Object/classes/class.ilObjectTranslation.php");
                        $ot = ilObjectTranslation::getInstance($this->getPageObject()->getParentId());
                        
                        if (!$ot->getContentActivated())
                        {
/*                              if ($cfg->getSinglePageMode())
                                {
                                        $a_list->addItem($lng->txt("cont_activate_multi_lang"), "",
                                                $ilCtrl->getLinkTargetByClass("ilpagemultilanggui", "activateMultilinguality"));
        
                                        $any_items = true;
                                }*/
                        }
                        else
                        {
                                $lng->loadLanguageModule("meta");
//echo $this->getPageObject()->getLanguage();
                                if ($this->getPageObject()->getLanguage() != "-")
                                {
                                        $l = $ot->getMasterLanguage();
                                        $a_list->addItem($lng->txt("cont_edit_language_version").": ".
                                                $lng->txt("meta_l_".$l), "",
                                                $ilCtrl->getLinkTarget($this, "editMasterLanguage"));
                                }

                                foreach ($ot->getLanguages() as $al => $lang)
                                {
                                        if ($this->getPageObject()->getLanguage() != $al &&
                                                $al != $ot->getMasterLanguage())
                                        {
                                                $ilCtrl->setParameter($this, "totransl", $al);
                                                $a_list->addItem($lng->txt("cont_edit_language_version").": ".
                                                        $lng->txt("meta_l_".$al), "",
                                                        $ilCtrl->getLinkTarget($this, "switchToLanguage"));
                                                $ilCtrl->setParameter($this, "totransl", $_GET["totransl"]);
                                        }
                                }

/*                              if ($cfg->getSinglePageMode())
                                {
                                        $a_list->addItem($lng->txt("cont_manage_multilang"), "",
                                                $ilCtrl->getLinkTargetByClass("ilpagemultilanggui", "settings"));
                                }*/

                                include_once("./Services/COPage/classes/class.ilPageMultiLangGUI.php");
                                $ml_gui = new ilPageMultiLangGUI($this->getPageObject()->getParentType(),
                                        $this->getPageObject()->getParentId());
                                $a_tpl->setVariable("MULTI_LANG_INFO", $ml_gui->getMultiLangInfo($this->getPageObject()->getLanguage()));

                                $any_items = true;
                        }
                }
                
                return $any_items;
        }
        

        function setEditMode()
        {
                global $ilCtrl, $ilUser;

                if ($_GET["media_mode"] != "")
                {
                        if ($_GET["media_mode"] == "disable")
                        {
                                $ilUser->writePref("ilPageEditor_MediaMode", "disable");
                        }
                        else
                        {
                                $ilUser->writePref("ilPageEditor_MediaMode", "");
                        }
                }
                if ($_GET["html_mode"] != "")
                {
                        if ($_GET["html_mode"] == "disable")
                        {
                                $ilUser->writePref("ilPageEditor_HTMLMode", "disable");
                        }
                        else
                        {
                                $ilUser->writePref("ilPageEditor_HTMLMode", "");
                        }
                }
                if ($_GET["js_mode"] != "")
                {
                        if ($_GET["js_mode"] == "disable")
                        {
                                $ilUser->writePref("ilPageEditor_JavaScript", "disable");
                        }
                        else
                        {
                                $ilUser->writePref("ilPageEditor_JavaScript", "");
                        }
                }

                $ilCtrl->redirect($this, "edit");
        }


        static function getTinyMenu($a_par_type,
                $a_int_links = false, $a_wiki_links = false, $a_keywords = false,
                $a_style_id = 0, $a_paragraph_styles = true, $a_save_return = true,
                $a_anchors = false, $a_save_new = true)
        {
                global $lng, $ilCtrl;

                $mathJaxSetting = new ilSetting("MathJax");
                
                include_once("./Services/COPage/classes/class.ilPageEditorSettings.php");

                include_once("./Services/UIComponent/Tooltip/classes/class.ilTooltipGUI.php");
                
                $btpl = new ilTemplate("tpl.tiny_menu.html", true, true, "Services/COPage");
                
                // debug ghost element
                if (DEVMODE == 1)
                {
                        $btpl->touchBlock("debug_ghost");
                }

                // bullet list
                $btpl->touchBlock("blist_button");
                ilTooltipGUI::addTooltip("il_edm_blist",
                        $lng->txt("cont_blist"),
                        "iltinymenu_bd");

                // numbered list
                $btpl->touchBlock("nlist_button");
                ilTooltipGUI::addTooltip("il_edm_nlist",
                        $lng->txt("cont_nlist"),
                        "iltinymenu_bd");

                // list indent
                $btpl->touchBlock("list_indent");
                ilTooltipGUI::addTooltip("ilIndentBut",
                        $lng->txt("cont_list_indent"),
                        "iltinymenu_bd");

                // list outdent
                $btpl->touchBlock("list_outdent");
                ilTooltipGUI::addTooltip("ilOutdentBut",
                        $lng->txt("cont_list_outdent"),
                        "iltinymenu_bd");

                if ($a_int_links)
                {
                        $btpl->touchBlock("bb_ilink_button");
                        ilTooltipGUI::addTooltip("iosEditInternalLinkTrigger", $lng->txt("cont_link_to_internal"),
                                "iltinymenu_bd");
                }
                ilTooltipGUI::addTooltip("il_edm_xlink", $lng->txt("cont_link_to_external"),
                        "iltinymenu_bd");

                // remove format
                $btpl->touchBlock("rformat_button");
                ilTooltipGUI::addTooltip("il_edm_rformat", $lng->txt("cont_remove_format"),
                        "iltinymenu_bd");

                if ($a_paragraph_styles)
                {
                        // new paragraph
                        $btpl->setCurrentBlock("new_par");
                        $btpl->setVariable("IMG_NEWPAR", "+");
                        $btpl->parseCurrentBlock();
                        ilTooltipGUI::addTooltip("il_edm_newpar", $lng->txt("cont_insert_new_paragraph"),
                                "iltinymenu_bd");
                        
                        $btpl->setCurrentBlock("par_edit");
                        $btpl->setVariable("TXT_PAR_FORMAT", $lng->txt("cont_par_format"));
                        include_once("./Services/COPage/classes/class.ilPCParagraphGUI.php");
                        $btpl->setVariable("STYLE_SELECTOR", ilPCParagraphGUI::getStyleSelector($a_selected,
                                ilPCParagraphGUI::_getCharacteristics($a_style_id), true));
                        
                        ilTooltipGUI::addTooltip("ilAdvSelListAnchorText_style_selection",
                                $lng->txt("cont_paragraph_styles"), "iltinymenu_bd");

                        $btpl->parseCurrentBlock();
                }

                if ($a_keywords)
                {
                        $btpl->setCurrentBlock("bb_kw_button");
                        $btpl->setVariable("CC_KW", "kw");
                        $btpl->parseCurrentBlock();
                        ilTooltipGUI::addTooltip("il_edm_kw", $lng->txt("cont_text_keyword"),
                                "iltinymenu_bd");

                }

                if ($a_wiki_links)
                {
                        $btpl->setCurrentBlock("bb_wikilink_button2");
                        $btpl->setVariable("TXT_WIKI_BUTTON2", $lng->txt("obj_wiki"));
                        $btpl->setVariable("WIKI_BUTTON2_URL", $ilCtrl->getLinkTargetByClass("ilwikipagegui", ""));
                        $btpl->parseCurrentBlock();
                        ilTooltipGUI::addTooltip("il_edm_wlinkd", $lng->txt("cont_wiki_link_dialog"),
                                "iltinymenu_bd");

                        $btpl->setCurrentBlock("bb_wikilink_button");
                        $btpl->setVariable("TXT_WLN2", $lng->txt("obj_wiki"));
                        $btpl->parseCurrentBlock();
                        ilTooltipGUI::addTooltip("il_edm_wlink", $lng->txt("cont_link_to_wiki"),
                                "iltinymenu_bd");
                }

                $aset = new ilSetting("adve");
                
                include_once("./Services/COPage/classes/class.ilPageContentGUI.php");
                foreach (ilPageContentGUI::_getCommonBBButtons() as $c => $st)
                {
                        // these are handled via drop down now...
                        if (in_array($c, array("com", "quot", "acc", "code")))
                        {
                                continue;
                        }
                        if (ilPageEditorSettings::lookupSettingByParentType(
                                $a_par_type, "active_".$c, true))
                        {
                                $cc_code = $c;
                                if ($aset->get("use_physical"))
                                {
                                        $cc_code = str_replace(array("str", "emp", "imp"), array("B", "I", "U"), $cc_code);
                                }
                                
                                if ($c != "tex" || $mathJaxSetting->get("enable") || defined("URL_TO_LATEX"))
                                {
                                        $btpl->setCurrentBlock("bb_".$c."_button");
                                        $btpl->setVariable("CC_".strtoupper($c), $cc_code);
                                        $btpl->parseCurrentBlock();
                                        ilTooltipGUI::addTooltip("il_edm_cc_".$c,
                                                $lng->txt("cont_cc_".$c),
                                                "iltinymenu_bd");

//                                      $btpl->setVariable("TXT_".strtoupper($c), $this->lng->txt("cont_text_".$c));
                                }
                        }
                }
                
                if ($mathJaxSetting->get("enable") || defined("URL_TO_LATEX"))
                {
                        ilTooltipGUI::addTooltip("il_edm_tex", $lng->txt("cont_tex"),
                                "iltinymenu_bd");
                }
                ilTooltipGUI::addTooltip("il_edm_fn", $lng->txt("cont_fn"),
                        "iltinymenu_bd");

                include_once("./Services/UIComponent/AdvancedSelectionList/classes/class.ilAdvancedSelectionListGUI.php");
                $sdd = new ilAdvancedSelectionListGUI();
                $sdd->setPullRight(false);
                $sdd->setListTitle($lng->txt("save")."...");

                if ($a_save_return)
                {
                        $btpl->setCurrentBlock("save_return");
                        $btpl->setVariable("TXT_SAVE_RETURN", $lng->txt("save_return"));
                        $btpl->parseCurrentBlock();
                        $sdd->addItem($lng->txt("save_return"), "", "#", "", "", "", "", "", "ilCOPage.cmdSaveReturn(false); return false;");
                }

                if ($a_save_new)
                {
                        $btpl->setCurrentBlock("save_new");
                        $btpl->setVariable("TXT_SAVE_NEW", $lng->txt("save_new"));
                        $btpl->parseCurrentBlock();
                        $sdd->addItem($lng->txt("save_new"), "", "#", "", "", "", "", "", "ilCOPage.cmdSaveReturn(true); return false;");
                }

                $sdd->addItem($lng->txt("save"), "", "#", "", "", "", "", "", "ilCOPage.cmdSave(null); return false;");
                $sdd->addItem($lng->txt("cancel"), "", "#", "", "", "", "", "", "ilCOPage.cmdCancel(); return false;");

                if ($a_anchors)
                {
                        $btpl->setCurrentBlock("bb_anc_button");
                        $btpl->setVariable("CC_ANC", "anc");
                        $btpl->parseCurrentBlock();
                        ilTooltipGUI::addTooltip("il_edm_anc", $lng->txt("cont_anchor"),
                                "iltinymenu_bd");
                }

                $btpl->setVariable("SAVE_DROPDOWN", $sdd->getHTML());

/*              // footnote
                $btpl->setVariable("TXT_ILN", $this->lng->txt("cont_text_iln"));
                $btpl->setVariable("TXT_BB_TIP", $this->lng->txt("cont_bb_tip"));
                $btpl->setVariable("TXT_WLN", $lng->txt("wiki_wiki_page"));
*/
//              $btpl->setVariable("PAR_TA_NAME", $a_ta_name);

                $btpl->setVariable("TXT_SAVE", $lng->txt("save"));
                $btpl->setVariable("TXT_CANCEL", $lng->txt("cancel"));

                $btpl->setVariable("TXT_CHAR_FORMAT", $lng->txt("cont_char_format"));
                $btpl->setVariable("TXT_LISTS", $lng->txt("cont_lists"));
                $btpl->setVariable("TXT_LINKS", $lng->txt("cont_links"));
                $btpl->setVariable("TXT_MORE_FUNCTIONS", $lng->txt("cont_more_functions"));
                $btpl->setVariable("TXT_SAVING", $lng->txt("cont_saving"));
                
                include_once("./Services/COPage/classes/class.ilPCParagraphGUI.php");
                $btpl->setVariable("CHAR_STYLE_SELECTOR", ilPCParagraphGUI::getCharStyleSelector($a_par_type));
                ilTooltipGUI::addTooltip("ilAdvSelListAnchorElement_char_style_selection",
                        $lng->txt("cont_more_character_styles"), "iltinymenu_bd");

                return $btpl->get();
        }

        function setDefaultLinkXml()
        {
                global $ilCtrl;

                $int_links = $this->getPageObject()->getInternalLinks();
//var_dump($int_links);
                $link_info = "<IntLinkInfos>";
                $targetframe = "None";
                foreach ($int_links as $int_link)
                {
                        $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";

                                $ltarget="_top";
                                if ($targetframe != "None")
                                {
                                        $ltarget="_blank";
                                }

                                // anchor
                                $anc = $anc_add = "";
                                if ($int_link["Anchor"] != "")
                                {
                                        $anc = $int_link["Anchor"];
                                        $anc_add = "_".rawurlencode($int_link["Anchor"]);
                                }

                                $href = "";
                                switch($type)
                                {
                                        case "PageObject":
                                        case "StructureObject":
                                                $lm_id = ilLMObject::_lookupContObjID($target_id);
                                                if ($type == "PageObject")
                                                {
                                                        $href = "./goto.php?target=pg_".$target_id.$anc_add;
                                                }
                                                else
                                                {
                                                        $href = "./goto.php?target=st_".$target_id;
                                                }
                                                break;

                                        case "GlossaryItem":
                                                if ($targetframe == "None")
                                                {
                                                        $targetframe = "Glossary";
                                                }
                                                $href = "./goto.php?target=git_".$target_id;
                                                break;

                                        case "MediaObject":
                                                $ilCtrl->setParameter($this, "mob_id", $target_id);
                                                //$ilCtrl->setParameter($this, "pg_id", $this->obj->getId());
                                                $href = $ilCtrl->getLinkTarget($this, "displayMedia");
                                                $ilCtrl->setParameter($this, "mob_id", "");
                                                break;

                                        case "WikiPage":
                                                include_once("./Modules/Wiki/classes/class.ilWikiPage.php");
                                                $href = ilWikiPage::getGotoForWikiPageTarget($target_id);
                                                break;

                                        case "RepositoryItem":
                                                $obj_type = ilObject::_lookupType($target_id, true);
                                                $obj_id = ilObject::_lookupObjId($target_id);
                                                $href = "./goto.php?target=".$obj_type."_".$target_id;
                                                break;


                                }
                                $anc_par = 'Anchor="'.$anc.'"';
                                $link_info.="<IntLinkInfo Target=\"$target\" Type=\"$type\" ".$anc_par." ".
                                        "TargetFrame=\"$targetframe\" LinkHref=\"$href\" LinkTarget=\"$ltarget\" />";
                        }
                }
                $link_info.= "</IntLinkInfos>";
                $this->setLinkXML($link_info);
        }
        
        function downloadFile()
        {
                $this->obj->buildDom();
                
                include_once("./Services/COPage/classes/class.ilPCFileList.php");
                $files = ilPCFileList::collectFileItems($this->obj, $this->obj->getDomDoc());

                $file = explode("_", $_GET["file_id"]);
                require_once("./Modules/File/classes/class.ilObjFile.php");
                $file_id = $file[count($file) - 1];

                // file must be in page
                if (!in_array($file_id, $files))
                {
                        exit;
                }
                $fileObj =& new ilObjFile($file_id, false);
                $fileObj->sendFile();
                exit;
        }
        
        function displayMediaFullscreen()
        {
                $this->displayMedia(true);
        }

        function displayMedia($a_fullscreen = false)
        {
                global $tpl;

                $tpl = new ilTemplate("tpl.fullscreen.html", true, true, "Modules/LearningModule");
                $tpl->setCurrentBlock("ilMedia");

                //$int_links = $page_object->getInternalLinks();
                $med_links = ilMediaItem::_getMapAreasIntLinks($_GET["mob_id"]);
                
                // @todo
                //$link_xml = $this->getLinkXML($med_links, $this->getLayoutLinkTargets());
                
                require_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                $media_obj = new ilObjMediaObject($_GET["mob_id"]);
                require_once("./Services/COPage/classes/class.ilPageObject.php");
                $pg_obj = $this->getPageObject();
                $pg_obj->buildDom();

                if (!empty ($_GET["pg_id"]))
                {
                        $xml = "<dummy>";
                        $xml.= $pg_obj->getMediaAliasElement($_GET["mob_id"]);
                        $xml.= $media_obj->getXML(IL_MODE_OUTPUT);
                        $xml.= $link_xml;
                        $xml.="</dummy>";
                }
                else
                {
                        $xml = "<dummy>";
                        $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();

                $mode = "media";
                if ($a_fullscreen)
                {
                        $mode = "fullscreen";
                }

//echo "<b>XML:</b>".htmlentities($xml);
                // determine target frames for internal links
                $wb_path = ilUtil::getWebspaceDir("output")."/";
                $enlarge_path = ilUtil::getImagePath("enlarge.svg");
                $params = array ('mode' => $mode, 'enlarge_path' => $enlarge_path,
                        'link_params' => "ref_id=".$_GET["ref_id"],'fullscreen_link' => "",
                        'ref_id' => $_GET["ref_id"], 'webspace_path' => $wb_path);
                $output = xslt_process($xh,"arg:/_xml","arg:/_xsl",NULL,$args, $params);
//echo "<br><br>".htmlentities($output);
        //echo xslt_error($xh);
                xslt_free($xh);

                // unmask user html
                $tpl->setVariable("LOCATION_CONTENT_STYLESHEET",
                                ilObjStyleSheet::getContentStylePath(0));
                $tpl->setVariable("LOCATION_STYLESHEET", ilUtil::getStyleSheetLocation());
                $tpl->setVariable("MEDIA_CONTENT", $output);

                // add js
                include_once("./Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php");
                ilObjMediaObjectGUI::includePresentationJS($tpl);
                $tpl->fillJavaScriptFiles();
                $tpl->fillCssFiles();

                echo $tpl->get();
                exit;
        }

        function download_paragraph()
        {
                $pg_obj = $this->getPageObject();
                $pg_obj->send_paragraph($_GET["par_id"], $_GET["downloadtitle"]);
        }

        function insertContentIncludes($a_html)
        {
                global $ilCtrl, $lng;
                
                $c_pos = 0;
                $start = strpos($a_html, "{{{{{ContentInclude;");
                if (is_int($start))
                {
                        $end = strpos($a_html, "}}}}}", $start);
                }
                $i = 1;
                while ($end > 0)
                {
                        $param = substr($a_html, $start + 20, $end - $start - 20);
                        $param = explode(";", $param);

                        if ($param[0] == "mep" && is_numeric($param[1]) && $param[2] <= 0)
                        {
                                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPageGUI.php");

                                if (ilMediaPoolPage::_exists($param[1]))
                                {
                                        $page_gui = new ilMediaPoolPageGUI($param[1], 0, true, "-");
                                        if ($this->getOutputMode() != "offline")
                                        {
                                                $page_gui->setFileDownloadLink($this->determineFileDownloadLink());
                                                $page_gui->setFullscreenLink($this->determineFullscreenLink());
                                                $page_gui->setSourceCodeDownloadScript($this->determineSourcecodeDownloadScript());
                                        }
                                        else
                                        {
                                                $page_gui->setOutputMode(IL_PAGE_OFFLINE);
                                        }
                
                                        $html = $page_gui->getRawContent();
                                }
                                else
                                {
                                        if ($this->getOutputMode() == "edit")
                                        {
                                                $html = "// ".$lng->txt("cont_missing_snippet")." //";
                                        }
                                }
                                $h2 = substr($a_html, 0, $start).
                                        $html.
                                        substr($a_html, $end + 5);
                                $a_html = $h2;
                                $i++;
                        }
                        $start = strpos($a_html, "{{{{{ContentInclude;", $start + 5);
                        $end = 0;
                        if (is_int($start))
                        {
                                $end = strpos($a_html, "}}}}}", $start);
                        }
                }
                return $a_html;
        }

        function insertPageToc($a_output)
        {
                global $lng;

                include_once("./Services/Utilities/classes/class.ilStr.php");

                // extract all headings
                $offsets = ilStr::strPosAll($a_output, "ilPageTocH");
                $page_heads = array();
                foreach ($offsets as $os)
                {
                        $level = (int) substr($a_output, $os + 10, 1);
                        if (in_array($level, array(1,2,3)))
                        {
                                $anchor = str_replace("TocH", "TocA",
                                        substr($a_output, $os, strpos($a_output, "<", $os) - $os - 3)
                                        );

                                // get heading
                                $tag_start = stripos($a_output, "<h".$level." ", $os);
                                $tag_end = stripos($a_output, "</h".$level.">", $tag_start);
                                $head = substr($a_output, $tag_start, $tag_end - $tag_start);

                                // get headings text
                                $text_start = stripos($head, ">") + 1;
                                $text_end = strripos($head, "<!--", $text_start);
                                $text = substr($head, $text_start, $text_end - $text_start);
                                $page_heads[] = array("level" => $level, "text" => $text,
                                        "anchor" => $anchor);
                        }
                }

                if (count($page_heads) > 1)
                {
                        include_once("./Services/UIComponent/NestedList/classes/class.ilNestedList.php");
                        $list = new ilNestedList();
                        $list->setAutoNumbering(true);
                        $list->setListClass("ilc_page_toc_PageTOCList");
                        $list->setItemClass("ilc_page_toc_PageTOCItem");
                        $i = 0;
                        $c_depth = 1;
                        $c_par[1] = 0;
                        $c_par[2] = 0;
                        $nr[1] = 1;
                        $nr[2] = 1;
                        $nr[3] = 1;
                        foreach ($page_heads as $ind => $h)
                        {
                                $i++;
                                $par = 0;

                                // check if we have a parent for one level up
                                $par = 0;
                                if ($h["level"] == 2 && $c_par[1] > 0)
                                {
                                        $par = $c_par[1];
                                }
                                if ($h["level"] == 3 && $c_par[2] > 0)
                                {
                                        $par = $c_par[2];
                                }

                                $h["text"] = str_replace("<!--PageTocPH-->", "", $h["text"]);

                                // add the list node
                                $list->addListNode(
                                        "<a href='#".$h["anchor"]."' class='ilc_page_toc_PageTOCLink'>".$h["text"]."</a>",
                                        $i, $par);

                                // set the node as current parent of the level
                                if ($h["level"] == 1)
                                {
                                        $c_par[1] = $i;
                                        $c_par[2] = 0;
                                }
                                if ($h["level"] == 2)
                                {
                                        $c_par[2] = $i;
                                }
                        }

                        $tpl = new ilTemplate("tpl.page_toc.html", true, true,
                                "Services/COPage");
                        $tpl->setVariable("PAGE_TOC", $list->getHTML());
                        $tpl->setVariable("TXT_PAGE_TOC", $lng->txt("cont_page_toc"));
                        $tpl->setVariable("TXT_HIDE", $lng->txt("hide"));
                        $tpl->setVariable("TXT_SHOW", $lng->txt("show"));

                        $a_output = str_replace("{{{{{PageTOC}}}}}",
                                $tpl->get(), $a_output);
                        $numbers = $list->getNumbers();

                        if (count($numbers) > 0)
                        {
                                include_once("./Services/Utilities/classes/class.ilStr.php");
                                foreach ($numbers as $n)
                                {
                                        $a_output =
                                                ilStr::replaceFirsOccurence("<!--PageTocPH-->", $n." ", $a_output);
                                }
                        }
                }
                else
                {
                        $a_output = str_replace("{{{{{PageTOC}}}}}",
                                "", $a_output);
                }

                return $a_output;
        }
        
        function insertResources($a_output)
        {
                // this is edit mode only
                
                if ($this->getEnablePCType("Resources") &&
                        ($this->getOutputMode() == "edit" || $this->getOutputMode() == "preview"))
                {
                        include_once("./Services/COPage/classes/class.ilPCResourcesGUI.php");
                        $a_output = ilPCResourcesGUI::insertResourcesIntoPageContent($a_output, $this->getOutputMode());
                }
                return $a_output;
        }
        
        
        
        function insertAdvTrigger($a_output)
        {
                global $lng;
                
                if (!$this->getAbstractOnly())
                {
                        $a_output = str_replace("{{{{{LV_show_adv}}}}}",
                                $lng->txt("cont_show_adv"), $a_output);
                        $a_output = str_replace("{{{{{LV_hide_adv}}}}}",
                                $lng->txt("cont_hide_adv"), $a_output);
                }
                else
                {
                        $a_output = str_replace("{{{{{LV_show_adv}}}}}",
                                "", $a_output);
                        $a_output = str_replace("{{{{{LV_hide_adv}}}}}",
                                "", $a_output);
                }
                
                return $a_output;
        }
        
        
        function postOutputProcessing($a_output)
        {
                return $a_output;
        }
        
        function insertHelp($a_tpl)
        {
                global $lng;

                $a_tpl->setCurrentBlock("help");
                $a_tpl->setVariable("TXT_ADD_EL", $lng->txt("cont_add_elements"));
                include_once("./Services/UIComponent/Glyph/classes/class.ilGlyphGUI.php");
                $a_tpl->setVariable("PLUS", ilGlyphGUI::get(ilGlyphGUI::ADD));
                $a_tpl->setVariable("DRAG_ARROW", ilGlyphGUI::get(ilGlyphGUI::DRAG));
                $a_tpl->setVariable("TXT_DRAG", $lng->txt("cont_drag_and_drop_elements"));
                $a_tpl->setVariable("TXT_SEL", $lng->txt("cont_double_click_to_delete"));
                $a_tpl->parseCurrentBlock();
        }

        function previewHistory()
        {
                $this->preview();
        }

        function preview()
        {
                global $tree;
                $this->setOutputMode(IL_PAGE_PREVIEW);
                return $this->showPage();
        }

        function edit()
        {
                global $tree, $lng, $ilCtrl, $ilSetting, $ilUser, $ilHelp;

                // editing allowed?
                if (!$this->getEnableEditing())
                {
                        ilUtil::sendFailure($lng->txt("permission_denied"), true);
                        $ilCtrl->redirect($this, "preview");
                }

                // not so nive workaround for container pages, bug #0015831
                $ptype = $this->getParentType();
                if ($ptype == "cont" && $_GET["ref_id"] > 0)
                {
                        $ptype = ilObject::_lookupType((int) $_GET["ref_id"], true);
                }
                $ilHelp->setScreenId("edit_".$ptype);

                require_once 'Services/Captcha/classes/class.ilCaptchaUtil.php';
                if(
                        $ilUser->isAnonymous() &&
                        !$ilUser->isCaptchaVerified() &&
                        ilCaptchaUtil::isActiveForWiki()
                )
                {
                        $form = $this->initCaptchaForm();
                        if($_POST['captcha_code'] && $form->checkInput())
                        {
                                $ilUser->setCaptchaVerified(true);
                        }
                        else
                        {
                                return $form->getHTML();
                        }
                }
                
                // edit lock
                if (!$this->getPageObject()->getEditLock())
                {
                        include_once("./Services/User/classes/class.ilUserUtil.php");
                        $info = $lng->txt("content_no_edit_lock");
                        $lock = $this->getPageObject()->getEditLockInfo();
                        $info .= "</br>" . $lng->txt("content_until") . ": " .
                                        ilDatePresentation::formatDate(new ilDateTime($lock["edit_lock_until"], IL_CAL_UNIX));
                        $info .= "</br>" . $lng->txt("obj_usr") . ": " .
                                        ilUserUtil::getNamePresentation($lock["edit_lock_user"]);
                        if (!$ilCtrl->isAsynch())
                        {
                                ilUtil::sendInfo($info);
                                return "";
                        }
                        else
                        {
                                echo $this->tpl->getMessageHTML($info);
                                exit;
                        }
                }
                else
                {
                        $aset = new ilSetting("adve");

                        $min = (int) $aset->get("block_mode_minutes") ;
                        if ($min > 0)
                        {
                                include_once("./Services/User/classes/class.ilUserUtil.php");
                                $lock = $this->getPageObject()->getEditLockInfo();
                                $info = $lng->txt("cont_got_lock_until");
                                $info = str_replace("%1", ilDatePresentation::formatDate(new ilDateTime($lock["edit_lock_until"],IL_CAL_UNIX)), $info);
                                //$info.= "</br>".$lng->txt("content_until").": ".
                                //      ilDatePresentation::formatDate(new ilDateTime($lock["edit_lock_until"],IL_CAL_UNIX));
                                //$info.= "</br>".$lng->txt("obj_usr").": ".
                                //      ilUserUtil::getNamePresentation($lock["edit_lock_user"]);
                                include_once("./Services/UIComponent/Button/classes/class.ilLinkButton.php");
                                $but = ilLinkButton::getInstance();
                                $but->setCaption("cont_finish_editing");
                                $but->setUrl($ilCtrl->getLinkTarget($this, "releasePageLock"));
                                $info = str_replace("%2", $but->render(), $info);
                                ilUtil::sendInfo($info);
                        }
                }
                
                $this->setOutputMode(IL_PAGE_EDIT);

                $html = $this->showPage();
                
                if ($this->isEnabledNotes())
                {
                        $html.= "<br /><br />".$this->getNotesHTML();
                }       
        
                return $html;
        }
        
        function insertJSAtPlaceholder()
        {
                global $tpl;
                
//                'pl_hier_id' => string '2_1_1_1' (length=7)
//  'pl_pc_id' => string '1f77eb1d8a478497d69b99d938fda8f' (length=31)
                $html =  $this->edit();

                $tpl->addOnLoadCode("ilCOPage.insertJSAtPlaceholder('".
                        $_GET["pl_hier_id"].":".$_GET["pl_pc_id"].
                        "');", 3);

                return $html;
        }
        
        public function initCaptchaForm()
        {
                global $lng, $ilCtrl;

                require_once  'Services/Form/classes/class.ilPropertyFormGUI.php';
                $form = new ilPropertyFormGUI();
                
                require_once 'Services/Captcha/classes/class.ilCaptchaInputGUI.php';
                $ci = new ilCaptchaInputGUI($lng->txt('cont_captcha_code'), 'captcha_code');
                $ci->setRequired(true);
                $form->addItem($ci);

                $form->addCommandButton('edit', $lng->txt('ok'));
                
                $form->setTitle($lng->txt('cont_captcha_verification'));
                $form->setFormAction($ilCtrl->getFormAction($this));
                
                return $form;
        }

        /*
        * presentation
        */
        function presentation($a_mode = IL_PAGE_PRESENTATION)
        {
                global $tree;
                $this->setOutputMode($a_mode);

                return $this->showPage();
        }

        function getHTML()
        {
                $this->getTabs("preview");
                return $this->showPage();
        }
        
        function showMediaFullscreen($a_style_id = 0)
        {
                $this->tpl = new ilTemplate("tpl.fullscreen.html", true, true, "Services/COPage");
                $this->tpl->setCurrentBlock("ContentStyle");
                $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET", 0);
                $this->tpl->parseCurrentBlock();

                $this->tpl->setVariable("PAGETITLE", " - ".ilObject::_lookupTitle($_GET["mob_id"]));
                $this->tpl->setVariable("LOCATION_STYLESHEET", ilUtil::getStyleSheetLocation());
                $this->tpl->setCurrentBlock("ilMedia");

                require_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                $media_obj =& new ilObjMediaObject($_GET["mob_id"]);
                if (!empty ($_GET["pg_id"]))
                {
                        include_once("./Services/COPage/classes/class.ilPageObjectFactory.php");
                        $pg_obj = ilPageObjectFactory::getInstance($this->obj->getParentType(), $_GET["pg_id"]);
                        $pg_obj->buildDom();

                        $xml = "<dummy>";
                        // todo: we get always the first alias now (problem if mob is used multiple
                        // times in page)
                        $xml.= $pg_obj->getMediaAliasElement($_GET["mob_id"]);
                        $xml.= $media_obj->getXML(IL_MODE_OUTPUT);
                        $xml.="</dummy>";
                }
                else
                {
                        $xml = "<dummy>";
                        $xml.= $media_obj->getXML(IL_MODE_ALIAS);
                        $xml.= $media_obj->getXML(IL_MODE_OUTPUT);
                        $xml.="</dummy>";
                }

//echo htmlentities($xml); exit;

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

//echo "<b>XML:</b>".htmlentities($xml);
                // determine target frames for internal links
                //$pg_frame = $_GET["frame"];
                $wb_path = ilUtil::getWebspaceDir("output")."/";
                $mode = "fullscreen";
                $params = array ('mode' => $mode, '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);
        }

        function displayValidationError($a_error)
        {
                if(is_array($a_error))
                {
                        $error_str = "<b>Error(s):</b><br>";
                        foreach ($a_error as $error)
                        {
                                $err_mess = implode($error, " - ");
                                if (!is_int(strpos($err_mess, ":0:")))
                                {
                                        $error_str .= htmlentities($err_mess)."<br />";
                                }
                        }
                        $this->tpl->setVariable("MESSAGE", $error_str);
                }
        }

        function history()
        {
                global $tpl, $lng, $ilAccess;
                
                if (!$this->getEnableEditing())
                {
                        return;
                }
                
                $tpl->addJavaScript("./Services/COPage/js/page_history.js");
                
                include_once("./Services/COPage/classes/class.ilPageHistoryTableGUI.php");
                $table_gui = new ilPageHistoryTableGUI($this, "history");
                $table_gui->setId("hist_table");
                $entries = $this->getPageObject()->getHistoryEntries();
                $entries[] = array('page_id' => $this->getPageObject()->getId(),
                        'parent_type' => $this->getPageObject()->getParentType(),
                        'hdate' => $this->getPageObject()->getLastChange(),
                        'parent_id' => $this->getPageObject()->getParentId(),
                        'nr' => 0,
                        'sortkey' => 999999,
                        'user' => $this->getPageObject()->last_change_user);
                $table_gui->setData($entries);
                return $table_gui->getHTML();
        }

        function rollbackConfirmation()
        {
                global $tpl, $lng, $ilAccess, $ilCtrl;
                
                if (!$this->getEnableEditing())
                {
                        return;
                }
                
                include_once("Services/Utilities/classes/class.ilConfirmationGUI.php");
                $c_gui = new ilConfirmationGUI();
                
                // set confirm/cancel commands
                $ilCtrl->setParameter($this, "rollback_nr", $_GET["old_nr"]); 
                $c_gui->setFormAction($ilCtrl->getFormAction($this, "rollback"));
                $c_gui->setHeaderText($lng->txt("cont_rollback_confirmation"));
                $c_gui->setCancel($lng->txt("cancel"), "history");
                $c_gui->setConfirm($lng->txt("confirm"), "rollback");

                $hentry = $this->obj->getHistoryEntry($_GET["old_nr"]);
                        
                $c_gui->addItem("id[]", $_GET["old_nr"], 
                        ilDatePresentation::formatDate(new ilDateTime($hentry["hdate"], IL_CAL_DATETIME)));
                
                $tpl->setContent($c_gui->getHTML());
        }
        
        function rollback()
        {
                global $ilCtrl;
                
                if (!$this->getEnableEditing())
                {
                        return;
                }

                $hentry = $this->obj->getHistoryEntry($_GET["rollback_nr"]);

                if ($hentry["content"] != "")
                {
                        $this->obj->setXMLContent($hentry["content"]);
                        $this->obj->buildDom(true);
                        if ($this->obj->update())
                        {
                                $ilCtrl->redirect($this, "history");
                        }
                }
                $ilCtrl->redirect($this, "history");
        }
        
        function setScreenIdComponent()
        {
                global $ilHelp;

                $ilHelp->setScreenIdComponent("copg");
        }

        function getTabs($a_activate = "")
        {
                global $ilTabs, $ilCtrl, $ilUser;

                $this->setScreenIdComponent();
                
                if (!$this->getEnabledTabs())
                {
                        return;
                }

//echo "-".$ilCtrl->getNextClass()."-".$ilCtrl->getCmd()."-";
                // back to upper context
                
                if (!$this->getEditPreview())
                {
                        $ilTabs->addTarget("pg", $ilCtrl->getLinkTarget($this, "preview")
                                , array("", "preview"));
        
                        if ($this->getEnableEditing())
                        {
                                $ilTabs->addTarget("edit", $ilCtrl->getLinkTarget($this, "edit")
                                        , array("", "edit"));
                        }
                }
                else
                {
                        if ($this->getEnableEditing())
                        {
                                $ilTabs->addTarget("edit", $ilCtrl->getLinkTarget($this, "edit")
                                        , array("", "edit"));
                        }
        
                        $ilTabs->addTarget("cont_preview", $ilCtrl->getLinkTarget($this, "preview")
                                , array("", "preview"));
                }
                        
                //$tabs_gui->addTarget("properties", $this->ctrl->getLinkTarget($this, "properties")
                //      , "properties", get_class($this));

                if ($this->use_meta_data)
                {
                        $ilTabs->addTarget("meta_data",
                                 $this->ctrl->getLinkTargetByClass('ilmdeditorgui',''),
                                 "", "ilmdeditorgui");
                }

                $lm_set = new ilSetting("lm");
                
                if ($this->getEnableEditing() && $lm_set->get("page_history", 1))
                {
                        $ilTabs->addTarget("history", $this->ctrl->getLinkTarget($this, "history")
                                , "history", get_class($this));
                        if ($_GET["history_mode"] == "1" || $this->ctrl->getCmd() == "compareVersion")
                        {
                                $ilTabs->activateTab("history");
                        }
                }

/*              $tabs = $this->ctrl->getTabs();
                foreach ($tabs as $tab)
                {
                        $tabs_gui->addTarget($tab["lang_var"], $tab["link"]
                                , $tab["cmd"], $tab["class"]);
                }
*/
                if ($this->getEnableEditing() && $ilUser->getId() != ANONYMOUS_USER_ID)
                {
                        $ilTabs->addTarget("clipboard", $this->ctrl->getLinkTargetByClass("ilEditClipboardGUI", "view")
                                , "view", "ilEditClipboardGUI");
                }

                if ($this->getPageConfig()->getEnableScheduledActivation())
                {
                        $ilTabs->addTarget("cont_activation", $this->ctrl->getLinkTarget($this, "editActivation"),
                                "editActivation", get_class($this));
                }

                if ($this->getEnabledNews())
                {
                        $ilTabs->addTarget("news",
                                $this->ctrl->getLinkTargetByClass("ilnewsitemgui", "editNews"),
                                "", "ilnewsitemgui");
                }

                // external hook to add tabs
                if (is_array($this->tab_hook))
                {
                        $func = $this->tab_hook["func"];
                        $this->tab_hook["obj"]->$func();
                }
                //$ilTabs->setTabActive("pg");
        }

        function compareVersion()
        {
                global $lng;

                if (!$this->getEnableEditing())
                {
                        return;
                }

                $tpl = new ilTemplate("tpl.page_compare.html", true, true, "Services/COPage");
                $compare = $this->obj->compareVersion((int) $_POST["left"], (int) $_POST["right"]);
                
                // left page
                $lpage = $compare["l_page"];
                $cfg = $this->getPageConfig();
                $cfg->setPreventHTMLUnmasking(true);

                $this->setOutputMode(IL_PAGE_PREVIEW);
                $this->setPageObject($lpage);
                $this->setPresentationTitle($this->getPresentationTitle());
                $this->setCompareMode(true);

                $lhtml = $this->showPage();
                $lhtml = $this->replaceDiffTags($lhtml);
                $lhtml = str_replace("&lt;br /&gt;", "<br />", $lhtml);
                $tpl->setVariable("LEFT", $lhtml);
                
                // right page
                $rpage = $compare["r_page"];
                $this->setPageObject($rpage);
                $this->setPresentationTitle($this->getPresentationTitle());
                $this->setCompareMode(true);
                $this->setOutputMode(IL_PAGE_PREVIEW);

                $rhtml = $this->showPage();
                $rhtml = $this->replaceDiffTags($rhtml);
                $rhtml = str_replace("&lt;br /&gt;", "<br />", $rhtml);
                $tpl->setVariable("RIGHT", $rhtml);
                
                $tpl->setVariable("TXT_NEW", $lng->txt("cont_pc_new"));
                $tpl->setVariable("TXT_MODIFIED", $lng->txt("cont_pc_modified"));
                $tpl->setVariable("TXT_DELETED", $lng->txt("cont_pc_deleted"));

//var_dump($left);
//var_dump($right);

                return $tpl->get();
        }
        
        function replaceDiffTags($a_html)
        {
                $a_html = str_replace("[ilDiffInsStart]", '<span class="ilDiffIns">', $a_html);
                $a_html = str_replace("[ilDiffDelStart]", '<span class="ilDiffDel">', $a_html);
                $a_html = str_replace("[ilDiffInsEnd]", '</span>', $a_html);
                $a_html = str_replace("[ilDiffDelEnd]", '</span>', $a_html);

                return $a_html;
        }
        
        function editActivation()
        {
                global $ilCtrl, $lng, $tpl;
                
                $atpl = new ilTemplate("tpl.page_activation.php", true, true, "Services/COPage");
                $this->initActivationForm();
                $this->getActivationFormValues();
                $atpl->setVariable("FORM", $this->form->getHTML());
                $atpl->setCurrentBlock("updater");
                $atpl->setVariable("UPDATER_FRAME", $this->exp_frame);
                $atpl->setVariable("EXP_ID_UPDATER", $this->exp_id);
                $atpl->setVariable("HREF_UPDATER", $this->exp_target_script);
                $atpl->parseCurrentBlock();
                $tpl->setContent($atpl->get());
        }
        
        function initActivationForm()
        {
                global $ilCtrl, $lng;
                
                include_once("./Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();
                $this->form->setFormAction($ilCtrl->getFormAction($this));
                $this->form->setTitle($lng->txt("cont_page_activation"));
                
                // activation type radio
                $rad = new ilRadioGroupInputGUI($lng->txt("cont_activation"), "activation");
                $rad_op1 = new ilRadioOption($lng->txt("cont_activated"), "activated");

                $rad->addOption($rad_op1);
                $rad_op2 = new ilRadioOption($lng->txt("cont_deactivated"), "deactivated");
                $rad->addOption($rad_op2);
                $rad_op3 = new ilRadioOption($lng->txt("cont_scheduled_activation"), "scheduled");
                
                        $dt_prop = new ilDateTimeInputGUI($lng->txt("cont_start"), "start");
                        $dt_prop->setShowTime(true);
                        $rad_op3->addSubItem($dt_prop);
                        $dt_prop2 = new ilDateTimeInputGUI($lng->txt("cont_end"), "end");
                        $dt_prop2->setShowTime(true);
                        $rad_op3->addSubItem($dt_prop2);
                        
                        // show activation information
                        $cb = new ilCheckboxInputGUI($this->lng->txt("cont_show_activation_info"), "show_activation_info");
                        $cb->setInfo($this->lng->txt("cont_show_activation_info_info"));
                        $rad_op3->addSubItem($cb);
                        
                
                $rad->addOption($rad_op3);

                $this->form->addCommandButton("saveActivation", $lng->txt("save"));
                
                $this->form->addItem($rad);
        }
        
        function getActivationFormValues()
        {
                $values = array();
                $values["activation"] = "deactivated";
                if ($this->getPageObject()->getActive())
                {
                        $values["activation"] = "activated";
                }
                
                $dt_prop = $this->form->getItemByPostVar("start");
                if ($this->getPageObject()->getActivationStart() != "")
                {
                        $values["activation"] = "scheduled";
                        $dt_prop->setDate(new ilDateTime($this->getPageObject()->getActivationStart(),
                                IL_CAL_DATETIME));
                }
                $dt_prop = $this->form->getItemByPostVar("end");
                if ($this->getPageObject()->getActivationEnd() != "")
                {
                        $values["activation"] = "scheduled";
                        $dt_prop->setDate(new ilDateTime($this->getPageObject()->getActivationEnd(),
                                IL_CAL_DATETIME));
                }
                
                $values["show_activation_info"] = $this->getPageObject()->getShowActivationInfo();
                
                $this->form->setValuesByArray($values);
        }
        
        function saveActivation()
        {
                global $tpl, $lng, $ilCtrl;
                
                $this->initActivationForm();
                
                if ($this->form->checkInput())
                {
                        $this->getPageObject()->setActive(true);
                        $this->getPageObject()->setActivationStart(null);
                        $this->getPageObject()->setActivationEnd(null);
                        $this->getPageObject()->setShowActivationInfo($_POST["show_activation_info"]);
                        if ($_POST["activation"] == "deactivated")
                        {
                                $this->getPageObject()->setActive(false);
                        }
                        if ($_POST["activation"] == "scheduled")
                        {
                                $this->getPageObject()->setActive(false);
                                $this->getPageObject()->setActivationStart(
                                        $this->form->getItemByPostVar("start")->getDate()->get(IL_CAL_DATETIME));
                                $this->getPageObject()->setActivationEnd(
                                        $this->form->getItemByPostVar("end")->getDate()->get(IL_CAL_DATETIME));
                        }
                        $this->getPageObject()->update();
                        ilUtil::sendSuccess($lng->txt("msg_obj_modified"), true);
                        $ilCtrl->redirect($this, "editActivation");
                }
                $this->form->getValuesByPost();
                $tpl->setContent($this->form->getHTML());
        }

        function getNotesHTML($a_content_object = null, $a_enable_private_notes = true, $a_enable_public_notes = false, $a_enable_notes_deletion = false, $a_callback = null)
        {
                global $ilCtrl;

                include_once("Services/Notes/classes/class.ilNoteGUI.php");

                // scorm 2004 page gui
                if(!$a_content_object)
                {
                        $notes_gui = new ilNoteGUI($this->notes_parent_id,
                                (int)$this->obj->getId(), "pg");

                        $a_enable_private_notes = true;
                        $a_enable_public_notes = true;
                        $a_enable_notes_deletion = false;
                }
                // wiki page gui, blog posting gui
                else
                {
                        $notes_gui = new ilNoteGUI($a_content_object->getParentId(),
                                $a_content_object->getId(), $a_content_object->getParentType());
                }
        
                if($a_enable_private_notes)
                {
                        $notes_gui->enablePrivateNotes();
                }
                if ($a_enable_public_notes)
                {
                        $notes_gui->enablePublicNotes();
                        if ((bool)$a_enable_notes_deletion)
                        {
                                $notes_gui->enablePublicNotesDeletion(true);
                        }
                }
                
                if($a_callback)
                {
                        $notes_gui->addObserver($a_callback);
                }

                $next_class = $this->ctrl->getNextClass($this);
                if ($next_class == "ilnotegui")
                {
                        $html = $this->ctrl->forwardCommand($notes_gui);
                }
                else
                {
                        $html = $notes_gui->getNotesHTML();
                }
                return $html;
        }

        function processAnswer()
        {
                global $ilLog;

                /*$ilLog->write($_POST);
                $ilLog->write($_POST["id"]);
                $ilLog->write($_POST["type"]);
                $ilLog->write($_POST["answer"]);
                $ilLog->write($_GET);*/

                include_once("./Services/COPage/classes/class.ilPageQuestionProcessor.php");
                ilPageQuestionProcessor::saveQuestionAnswer(
                        ilUtil::stripSlashes($_POST["type"]),
                        ilUtil::stripSlashes($_POST["id"]),
                        ilUtil::stripSlashes($_POST["answer"]));
        }


        //
        // Initially opened content (e.g. used in learning modules), that
        // is presented in another than the main content area (e.g. a picture in
        // the bottom left area)
        //

        function initialOpenedContent()
        {
                global $ilTabs, $ilCtrl;
                
                $ilTabs->activateTab("edit");
                $form = $this->initOpenedContentForm();
                
                $this->tpl->setContent($form->getHTML());
        }
        
        function initOpenedContentForm()
        {
                global $ilCtrl;
                
                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $form = new ilPropertyFormGUI();
                
                // link input
                include_once 'Services/Form/classes/class.ilLinkInputGUI.php';
                $ac = new ilLinkInputGUI($this->lng->txt('cont_resource'), 'opened_content');
                $ac->setAllowedLinkTypes(ilLinkInputGUI::INT);
                $ac->setInternalLinkDefault("Media_Media", 0);
                $ac->setInternalLinkFilterTypes(array("PageObject_FAQ", "GlossaryItem", "Media_Media", "Media_FAQ"));
                $val = $this->obj->getInitialOpenedContent();
                if ($val["id"] != "" && $val["type"] != "")
                {
                        $ac->setValue($val["type"]."|".$val["id"]."|".$val["target"]);
                }
                
                $form->addItem($ac);
                
                $form->addCommandButton("saveInitialOpenedContent", $this->lng->txt("save"));
                $form->addCommandButton("edit", $this->lng->txt("cancel"));
                $form->setTitle($this->lng->txt("cont_initial_attached_content"));
                $form->setFormAction($ilCtrl->getFormAction($this));
                
                return $form;
        }
        
        function saveInitialOpenedContent()
        {
                global $ilCtrl;

                $this->obj->saveInitialOpenedContent(
                        ilUtil::stripSlashes($_POST["opened_content_ajax_type"]),
                        ilUtil::stripSlashes($_POST["opened_content_ajax_id"]),
                        ilUtil::stripSlashes($_POST["opened_content_ajax_target"])
                        );
                
                ilUtil::sendSuccess($this->lng->txt("msg_obj_modified"));
                $ilCtrl->redirect($this, "edit");
        }
        
                
        
        function switchToLanguage()
        {
                global $ilCtrl;
                
                $l = ilUtil::stripSlashes($_GET["totransl"]);
                $p = $this->getPageObject();
                if (!ilPageObject::_exists($p->getParentType(), $p->getId(), $l))
                {
                        $this->confirmPageTranslationCreation();
                        return;
                }
                $ilCtrl->setParameter($this, "transl", $_GET["totransl"]); 
                $ilCtrl->redirect($this, "edit");
        }
        
        function confirmPageTranslationCreation()
        {
                global $ilCtrl, $tpl, $lng;
                        
                $l = ilUtil::stripSlashes($_GET["totransl"]);
                $ilCtrl->setParameter($this, "totransl", $l);
                $lng->loadLanguageModule("meta");
                
                include_once("./Services/Utilities/classes/class.ilConfirmationGUI.php");
                $cgui = new ilConfirmationGUI();
                $cgui->setFormAction($ilCtrl->getFormAction($this));
                $cgui->setHeaderText($lng->txt("cont_page_translation_does_not_exist").": ".
                        $lng->txt("meta_l_".$l));
                $cgui->setCancel($lng->txt("cancel"), "editMasterLanguage");
                $cgui->setConfirm($lng->txt("confirm"), "createPageTranslation");
                $tpl->setContent($cgui->getHTML());
        }
        
        function editMasterLanguage()
        {
                global $ilCtrl;
                
                $ilCtrl->setParameter($this, "transl", "");
                $ilCtrl->redirect($this, "edit");
        }
        
        function createPageTranslation()
        {
                global $ilCtrl;
                
                $l = ilUtil::stripSlashes($_GET["totransl"]);
                $this->getPageObject()->copyPageToTranslation($l);
                $ilCtrl->setParameter($this, "transl", $l);
                $ilCtrl->redirect($this, "edit");
        }

        function releasePageLock()
        {
                global $ilCtrl, $lng;

                $this->getPageObject()->releasePageLock();
                ilUtil::sendSuccess($lng->txt("cont_page_lock_released"), true);
                $ilCtrl->redirect($this, "preview");
        }
        
        protected function isPageContainerToBeRendered()
        {
                return (
                        $this->getRenderPageContainer() || $this->getOutputMode() == IL_PAGE_PREVIEW
                );
        }
}
?>