class.ilObjMediaPoolGUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./Services/Object/classes/class.ilObject2GUI.php");
include_once("./Modules/MediaPool/classes/class.ilObjMediaPool.php");
include_once("./Services/Table/classes/class.ilTableGUI.php");
include_once("./Modules/Folder/classes/class.ilObjFolderGUI.php");
include_once("./Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php");
include_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
include_once("./Services/Clipboard/classes/class.ilEditClipboardGUI.php");

class ilObjMediaPoolGUI extends ilObject2GUI
{
        var $output_prepared;

        protected function afterConstructor()
        {
                global $lng;
                
                $lng->loadLanguageModule("mep");
                
                if ($this->ctrl->getCmd() == "explorer")
                {
                        $this->ctrl->saveParameter($this, array("ref_id"));
                }
                else
                {
                        $this->ctrl->saveParameter($this, array("ref_id", "mepitem_id"));
                }
                $this->ctrl->saveParameter($this, array("mep_mode"));
                
                $lng->loadLanguageModule("content");
        }

        final function getType()
        {
                return "mep";
        }
        
        function &executeCommand()
        {
                global $ilTabs, $lng, $ilAccess, $tpl, $ilCtrl;
                
                if ($this->ctrl->getRedirectSource() == "ilinternallinkgui")
                {
                        $this->explorer();
                        return;
                }

                $next_class = $this->ctrl->getNextClass($this);
                $cmd = $this->ctrl->getCmd();
                $new_type = $_POST["new_type"]
                        ? $_POST["new_type"]
                        : $_GET["new_type"];

                if ($new_type != "" && ($cmd != "confirmRemove" && $cmd != "copyToClipboard"
                        && $cmd != "pasteFromClipboard"))
                {
                        $this->setCreationMode(true);
                }

                if (!$this->getCreationMode())
                {
                        $tree =& $this->object->getTree();
                        if ($_GET["mepitem_id"] == "")
                        {
                                $_GET["mepitem_id"] = $tree->getRootId();
                        }
                }
                if ($cmd == "create")
                {
                        switch($_POST["new_type"])
                        {
                                case "mob":
                                        $this->ctrl->redirectByClass("ilobjmediaobjectgui", "create");
                                        break;
                                        
                                case "fold":
                                        $this->ctrl->redirectByClass("ilobjfoldergui", "create");
                                        break;
                        }
                }

                switch($next_class)
                {
                        case 'ilmediapoolpagegui':
                                $this->checkPermission("write");
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                $this->setMediaPoolPageTabs();
                                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPageGUI.php");
                                $mep_page_gui = new ilMediaPoolPageGUI($_GET["mepitem_id"], $_GET["old_nr"]);

                                if (!$ilAccess->checkAccess("write", "", $this->object->getRefId()))
                                {
                                        $mep_page_gui->setEnableEditing(false);
                                }
                                $ret = $this->ctrl->forwardCommand($mep_page_gui);
                                if ($ret != "")
                                {
                                        $tpl->setContent($ret);
                                }
                                $this->tpl->show();
                                break;

                        case "ilobjmediaobjectgui":
                                $this->checkPermission("write");
                                //$cmd.="Object";
                                if ($cmd == "create" || $cmd == "save" || $cmd == "cancel")
                                {
                                        $ret_obj = $_GET["mepitem_id"];
                                        $ilObjMediaObjectGUI =& new ilObjMediaObjectGUI("", 0, false, false);
                                        $ilObjMediaObjectGUI->setWidthPreset($this->object->getDefaultWidth());
                                        $ilObjMediaObjectGUI->setHeightPreset($this->object->getDefaultHeight());
                                }
                                else
                                {
                                        $ret_obj = $tree->getParentId($_GET["mepitem_id"]);
                                        $ilObjMediaObjectGUI =& new ilObjMediaObjectGUI("", ilMediaPoolItem::lookupForeignId($_GET["mepitem_id"]), false, false);
                                        $this->ctrl->setParameter($this, "mepitem_id", $this->getParentFolderId());
                                        $ilTabs->setBackTarget($lng->txt("back"),
                                                $this->ctrl->getLinkTarget($this,
                                                        $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia"));
                                }
                                if ($this->ctrl->getCmdClass() == "ilinternallinkgui")
                                {
                                        $this->ctrl->setReturn($this, "explorer");
                                }
                                else
                                {
                                        $this->ctrl->setParameter($this, "mepitem_id", $ret_obj);
                                        $this->ctrl->setReturn($this,
                                                $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
                                        $this->ctrl->setParameter($this, "mepitem_id", $_GET["mepitem_id"]);
                                }
                                $this->getTemplate();
                                $ilObjMediaObjectGUI->setTabs();
                                $this->setLocator();

                                //$ret =& $ilObjMediaObjectGUI->executeCommand();
                                $ret = $this->ctrl->forwardCommand($ilObjMediaObjectGUI);

                                if ($cmd == "save" && $ret != false)
                                {
                                        $mep_item = new ilMediaPoolItem();
                                        $mep_item->setTitle($ret->getTitle());
                                        $mep_item->setType("mob");
                                        $mep_item->setForeignId($ret->getId());
                                        $mep_item->create();

                                        $parent = ($_GET["mepitem_id"] == "")
                                                ? $tree->getRootId()
                                                : $_GET["mepitem_id"];
                                        $tree->insertNode($mep_item->getId(), $parent);
                                        ilUtil::redirect("ilias.php?baseClass=ilMediaPoolPresentationGUI&cmd=listMedia&ref_id=".
                                                $_GET["ref_id"]."&mepitem_id=".$_GET["mepitem_id"]);
                                }
                                else
                                {
                                                $this->tpl->show();
                                }
                                break;

                        case "ilobjfoldergui":
                                $this->checkPermission("write");
                                $this->addHeaderAction();
                                $folder_gui = new ilObjFolderGUI("", 0, false, false);
                                $this->ctrl->setReturn($this, "listMedia");
                                $cmd.="Object";
                                switch($cmd)
                                {
                                        case "createObject":
                                                $this->prepareOutput();
                                                $folder_gui =& new ilObjFolderGUI("", 0, false, false);
                                                $folder_gui->setFormAction("save",
                                                        $this->ctrl->getFormActionByClass("ilobjfoldergui"));
                                                $folder_gui->createObject();
                                                $this->tpl->show();
                                                break;

                                        case "saveObject":
                                                //$folder_gui->setReturnLocation("save", $this->ctrl->getLinkTarget($this, "listMedia"));
                                                $parent = ($_GET["mepitem_id"] == "")
                                                        ? $tree->getRootId()
                                                        : $_GET["mepitem_id"];
                                                $folder_gui->setFolderTree($tree);
                                                $folder_gui->saveObject($parent);
                                                //$this->ctrl->redirect($this, "listMedia");
                                                break;

                                        case "editObject":
                                                $this->prepareOutput();
                                                $folder_gui =& new ilObjFolderGUI("", ilMediaPoolItem::lookupForeignId($_GET["mepitem_id"]), false, false);
                                                $this->ctrl->setParameter($this, "foldereditmode", "1");
                                                $folder_gui->setFormAction("update", $this->ctrl->getFormActionByClass("ilobjfoldergui"));
                                                $folder_gui->editObject();
                                                $this->tpl->show();
                                                break;

                                        case "updateObject":
                                                $folder_gui =& new ilObjFolderGUI("", ilMediaPoolItem::lookupForeignId($_GET["mepitem_id"]), false, false);
                                                $this->ctrl->setParameter($this, "mepitem_id", $this->getParentFolderId());
                                                $this->ctrl->setReturn($this, "listMedia");
                                                $folder_gui->updateObject(true);                // this returns to parent
                                                break;

                                        case "cancelObject":
                                                if ($_GET["foldereditmode"])
                                                {
                                                        $this->ctrl->setParameter($this, "mepitem_id", $this->getParentFolderId());
                                                }
                                                $this->ctrl->redirect($this, "listMedia");
                                                break;
                                }
                                break;

                        case "ileditclipboardgui":
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                $this->ctrl->setReturn($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
                                $clip_gui = new ilEditClipboardGUI();
                                $clip_gui->setMultipleSelections(true);
                                $clip_gui->setInsertButtonTitle($lng->txt("mep_copy_to_mep"));
                                $ilTabs->setTabActive("clipboard");
                                //$ret =& $clip_gui->executeCommand();
                                $ret =& $this->ctrl->forwardCommand($clip_gui);
                                $this->tpl->show();
                                break;
                                
                        case 'ilinfoscreengui':
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                $this->infoScreen();
                                $this->tpl->show();
                                break;

                        case 'ilpermissiongui':
                                $this->checkPermission("edit_permission");
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                include_once("Services/AccessControl/classes/class.ilPermissionGUI.php");
                                $perm_gui =& new ilPermissionGUI($this);
                                $ret =& $this->ctrl->forwardCommand($perm_gui);
                                $this->tpl->show();
                                break;
                                
                        case "ilexportgui":
                                $this->checkPermission("write");
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                include_once("./Services/Export/classes/class.ilExportGUI.php");
                                $exp_gui = new ilExportGUI($this);
                                $exp_gui->addFormat("xml");
                                include_once("./Services/Object/classes/class.ilObjectTranslation.php");
                                $ot = ilObjectTranslation::getInstance($this->object->getId());
                                if ($ot->getContentActivated())
                                {
                                        $exp_gui->addFormat("xml_master", "XML (".$lng->txt("mep_master_language_only").")", $this, "export");
                                }
                                $ret = $this->ctrl->forwardCommand($exp_gui);
                                $this->tpl->show();
                                break;

                        case "ilfilesystemgui":
                                $this->checkPermission("write");
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                $ilTabs->clearTargets();
                                $ilTabs->setBackTarget($lng->txt("back"),
                                        $ilCtrl->getLinkTarget($this, "listMedia"));
                                $mset = new ilSetting("mobs");
                                if (trim($mset->get("upload_dir")) != "")
                                {
                                        include_once("./Services/FileSystem/classes/class.ilFileSystemGUI.php");
                                        $fs_gui = new ilFileSystemGUI($mset->get("upload_dir"));
                                        $fs_gui->setPostDirPath(true);
                                        $fs_gui->setTableId("mepud".$this->object->getId());
                                        $fs_gui->setAllowFileCreation(false);
                                        $fs_gui->setAllowDirectoryCreation(false);
                                        $fs_gui->clearCommands();
                                        $fs_gui->addCommand($this, "selectUploadDirFiles", $this->lng->txt("mep_sel_upload_dir_files"),
                                                false, true);
                                        //$fs_gui->addCommand($this, "assignFullscreenObject", $this->lng->txt("cont_assign_full"));
                                        $ret =& $this->ctrl->forwardCommand($fs_gui);
                                }
                                $this->tpl->show();
                                break;
                                
                        case "ilcommonactiondispatchergui":
                                include_once("Services/Object/classes/class.ilCommonActionDispatcherGUI.php");
                                $gui = ilCommonActionDispatcherGUI::getInstanceFromAjaxCall();
                                $this->ctrl->forwardCommand($gui);
                                break;

                        case 'ilobjecttranslationgui':
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                //$this->setTabs("settings");
                                $ilTabs->activateTab("settings");
                                $this->setSettingsSubTabs("obj_multilinguality");
                                include_once("./Services/Object/classes/class.ilObjectTranslationGUI.php");
                                $transgui = new ilObjectTranslationGUI($this);
                                $transgui->setTitleDescrOnlyMode(false);
                                $this->ctrl->forwardCommand($transgui);
                                $this->tpl->show();
                                break;

                        case "ilmediapoolimportgui":
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                $ilTabs->activateTab("import");
                                include_once("./Modules/MediaPool/classes/class.ilMediaPoolImportGUI.php");
                                $gui = new ilMediaPoolImportGUI($this->object);
                                $this->ctrl->forwardCommand($gui);
                                $this->tpl->show();
                                break;

                        default:
                                $this->prepareOutput();
                                $this->addHeaderAction();
                                $cmd = $this->ctrl->getCmd("listMedia");
                                $this->$cmd();
                                if (!$this->getCreationMode())
                                {
                                        $this->tpl->show();
                                }
                                break;
                }
        }

        function createMediaObject()
        {
                $this->ctrl->redirectByClass("ilobjmediaobjectgui", "create");
        }

        protected function initCreationForms($a_new_type)
        {
                $forms = array(self::CFORM_NEW => $this->initCreateForm($a_new_type),
                        self::CFORM_IMPORT => $this->initImportForm($a_new_type));

                return $forms;
        }

        function afterSave($newObj)
        {
                // always send a message
                ilUtil::sendSuccess($this->lng->txt("object_added"),true);

                //ilUtil::redirect($this->getReturnLocation("save","adm_object.php?".$this->link_params));
                ilUtil::redirect("ilias.php?baseClass=ilMediaPoolPresentationGUI&ref_id=".$newObj->getRefId()."&cmd=listMedia");
        }

        protected function initEditCustomForm(ilPropertyFormGUI $a_form)
        {
                // default width
                $ni = new ilNumberInputGUI($this->lng->txt("mep_default_width"), "default_width");
                $ni->setMinValue(0);
                $ni->setSuffix("px");
                $ni->setMaxLength(5);
                $ni->setSize(5);
                $a_form->addItem($ni);

                // default height
                $ni = new ilNumberInputGUI($this->lng->txt("mep_default_height"), "default_height");
                $ni->setSuffix("px");
                $ni->setMinValue(0);
                $ni->setMaxLength(5);
                $ni->setSize(5);
                $ni->setInfo($this->lng->txt("mep_default_width_height_info"));
                $a_form->addItem($ni);
        }

        function edit()
        {
                $this->setSettingsSubTabs("settings");
                parent::edit();
        }


        protected function getEditFormCustomValues(array &$a_values)
        {
                if ($this->object->getDefaultWidth() > 0)
                {
                        $a_values["default_width"] = $this->object->getDefaultWidth();
                }
                if ($this->object->getDefaultHeight() > 0)
                {
                        $a_values["default_height"] = $this->object->getDefaultHeight();
                }
        }

        protected function updateCustom(ilPropertyFormGUI $a_form)
        {
                $this->object->setDefaultWidth($a_form->getInput("default_width"));
                $this->object->setDefaultHeight($a_form->getInput("default_height"));
        }

        function listMedia()
        {
                global $tree, $ilAccess, $tpl, $ilTabs, $ilCtrl, $ilToolbar, $lng, $ilErr;
                
                $ilCtrl->setParameter($this, "mep_mode", "listMedia");

                $this->checkPermission("read");

                $ilTabs->setTabActive("objs_fold");
                
                if ($ilAccess->checkAccess("write", "", $this->object->getRefId()))
                {
                        $ilToolbar->addButton($lng->txt("mep_create_mob"),
                                $ilCtrl->getLinkTarget($this, "createMediaObject"));
                        
                        $mset = new ilSetting("mobs");
                        if ($mset->get("mep_activate_pages"))
                        {
                                $ilToolbar->addButton($lng->txt("mep_create_content_snippet"),
                                        $ilCtrl->getLinkTarget($this, "createMediaPoolPage"));
                        }
        
                        $ilToolbar->addButton($lng->txt("mep_create_folder"),
                                $ilCtrl->getLinkTarget($this, "createFolderForm"));
                                                
                        if (trim($mset->get("upload_dir")) != "" && ilMainMenuGUI::_checkAdministrationPermission())
                        {
                                $ilToolbar->addButton($lng->txt("mep_create_from_upload_dir"),
                                        $ilCtrl->getLinkTargetByClass("ilfilesystemgui", "listFiles"));
                        }               
                }

                // tree
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolExplorerGUI.php");
                $exp = new ilMediaPoolExplorerGUI($this, "listMedia", $this->object);
                if (!$exp->handleCommand())
                {
                        $this->tpl->setLeftNavContent($exp->getHTML());
                }
                else
                {
                        return;
                }

                include_once("./Modules/MediaPool/classes/class.ilMediaPoolTableGUI.php");
                $mep_table_gui = new ilMediaPoolTableGUI($this, "listMedia", $this->object, "mepitem_id");
                $tpl->setContent($mep_table_gui->getHTML());
//              $this->tpl->show();
        }

        function allMedia()
        {
                global $tree, $ilAccess, $tpl, $ilTabs, $ilCtrl,$ilUser;

                $ilCtrl->setParameter($this, "mep_mode", "allMedia");

                $this->checkPermission("read");
                $ilTabs->setTabActive("mep_all_mobs");
                
                
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolTableGUI.php");
                $mep_table_gui = new ilMediaPoolTableGUI($this, "allMedia", $this->object,
                        "mepitem_id", ilMediaPoolTableGUI::IL_MEP_EDIT, true);
                        
                        
                if(isset($_GET['force_filter']) and $_GET['force_filter'])
                {
                        $_POST['title'] = ilMediaPoolItem::lookupTitle((int) $_GET['force_filter']);
                        
                        include_once("./Services/Table/classes/class.ilTablePropertiesStorage.php");
                        $tprop = new ilTablePropertiesStorage();
                        $tprop->storeProperty(
                                $mep_table_gui->getId(), 
                                $ilUser->getId(), 
                                'filter', 
                                1
                        );
                        $mep_table_gui->resetFilter();
                        $mep_table_gui->resetOffset();
                        $mep_table_gui->writeFilterToSession();

                        // Read again
                        $mep_table_gui = new ilMediaPoolTableGUI($this, "allMedia", $this->object,
                        "mepitem_id", ilMediaPoolTableGUI::IL_MEP_EDIT, true);
                }

                $tpl->setContent($mep_table_gui->getHTML());
//              $this->tpl->show();
        }
        
        function applyFilter()
        {
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolTableGUI.php");
                $mtab = new ilMediaPoolTableGUI($this, "allMedia", $this->object,
                        "mepitem_id", ilMediaPoolTableGUI::IL_MEP_EDIT, true);
                $mtab->writeFilterToSession();
                $mtab->resetOffset();
                $this->allMedia();
        }

        function resetFilter()
        {
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolTableGUI.php");
                $mtab = new ilMediaPoolTableGUI($this, "allMedia", $this->object,
                        "mepitem_id", ilMediaPoolTableGUI::IL_MEP_EDIT, true);
                $mtab->resetFilter();
                $mtab->resetOffset();
                $this->allMedia();
        }

        function getTemplate()
        {
                $this->tpl->getStandardTemplate();
        }


        function getParentFolderId()
        {
                if ($_GET["mepitem_id"] == "")
                {
                        return "";
                }
                $par_id = $this->object->tree->getParentId($_GET["mepitem_id"]);
                if ($par_id != $this->object->tree->getRootId())
                {
                        return $par_id;
                }
                else
                {
                        return "";
                }
        }
        
        protected function showMedia()
        {
                global $ilAccess;

                $this->checkPermission("read");

                $item = new ilMediaPoolItem((int) $_GET["mepitem_id"]);
                $mob_id = $item->getForeignId();

                $this->tpl = new ilTemplate("tpl.fullscreen.html", true, true, "Services/COPage");
                include_once("Services/Style/classes/class.ilObjStyleSheet.php");
                $this->tpl->setVariable("LOCATION_STYLESHEET", ilUtil::getStyleSheetLocation());
                $this->tpl->setVariable("LOCATION_CONTENT_STYLESHEET",
                        ilObjStyleSheet::getContentStylePath(0));


                require_once("./Services/MediaObjects/classes/class.ilObjMediaObject.php");
                require_once("./Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php");
                ilObjMediaObjectGUI::includePresentationJS($this->tpl);
                $media_obj = new ilObjMediaObject((int) $mob_id);


                $this->tpl->setVariable("TITLE", " - ".$media_obj->getTitle());

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

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

                $wb_path = ilUtil::getWebspaceDir("output")."/";

                $mode = ($_GET["cmd"] != "showPreview")
                        ? "fullscreen"
                        : "media";
                $enlarge_path = ilUtil::getImagePath("enlarge.svg", false, "output");
                $fullscreen_link =
                        $this->ctrl->getLinkTarget($this, "showFullscreen", "", false, false);
                $params = array ('mode' => $mode, 'enlarge_path' => $enlarge_path,
                        'link_params' => "ref_id=".$_GET["ref_id"],'fullscreen_link' => $fullscreen_link,
                        'ref_id' => $_GET["ref_id"], 'pg_frame' => $pg_frame, 'webspace_path' => $wb_path);
                $output = xslt_process($xh,"arg:/_xml","arg:/_xsl",NULL,$args, $params);
                echo xslt_error($xh);
                xslt_free($xh);
                // unmask user html
                $this->tpl->setVariable("MEDIA_CONTENT", $output);
        }
        
        function showPage()
        {
                global $tpl;
                
                $tpl = new ilTemplate("tpl.main.html", true, true);

                include_once("./Services/Container/classes/class.ilContainerPage.php");
                include_once("./Services/Container/classes/class.ilContainerPageGUI.php");

                include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                $tpl->setVariable("LOCATION_STYLESHEET", ilUtil::getStyleSheetLocation());
                $tpl->setVariable("LOCATION_CONTENT_STYLESHEET",
                        ilObjStyleSheet::getContentStylePath(0));
                $tpl->setCurrentBlock("SyntaxStyle");
                $tpl->setVariable("LOCATION_SYNTAX_STYLESHEET",
                        ilObjStyleSheet::getSyntaxStylePath());
                $tpl->parseCurrentBlock();

                // get page object
                //include_once("./Services/Object/classes/class.ilObjectTranslation.php");
                //$ot = ilObjectTranslation::getInstance($this->object->getId());
                //$lang = $ot->getEffectiveContentLang($ilUser->getCurrentLanguage(), "cont");
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPageGUI.php");
                $page_gui = new ilMediaPoolPageGUI((int) $_GET["mepitem_id"]);
                include_once("./Services/Style/classes/class.ilObjStyleSheet.php");
                //$page_gui->setStyleId(ilObjStyleSheet::getEffectiveContentStyleId(
                //      $this->object->getStyleSheetId(), $this->object->getType()));

                $page_gui->setTemplateOutput(false);
                $page_gui->setHeader("");
                $ret = $page_gui->showPage(true);

                $tpl->setBodyClass("ilMediaPoolPagePreviewBody");
                $tpl->setVariable("CONTENT", $ret);
                //$ret = "<div style='background-color: white; padding:5px; margin-bottom: 30px;'>".$ret."</div>";

                //$ret =& $page_gui->executeCommand();
                $tpl->show();
                exit;
        }
        

        function showPreview()
        {
                $this->checkPermission("read");

                $item = new ilMediaPoolItem((int) $_GET["mepitem_id"]);

                switch ($item->getType())
                {
                        case "mob":
                                $this->showMedia();
                                break;

                        case "pg":
                                $this->showPage();
                                break;
                }
        }


        function showFullscreen()
        {
                $this->showMedia();
        }
        
        function confirmRemove()
        {
                global $ilAccess, $ilCtrl, $lng;

                $this->checkPermission("write");

                if(!isset($_POST["id"]))
                {
                        $this->ilias->raiseError($this->lng->txt("no_checkbox"),$this->ilias->error_obj->MESSAGE);
                }
                
                // display confirmation message
                include_once("./Services/Utilities/classes/class.ilConfirmationGUI.php");
                $cgui = new ilConfirmationGUI();
                $cgui->setFormAction($this->ctrl->getFormAction($this));
                $cgui->setHeaderText($this->lng->txt("info_delete_sure"));
                $cgui->setCancel($this->lng->txt("cancel"), "cancelRemove");
                $cgui->setConfirm($this->lng->txt("confirm"), "remove");
                        
                foreach($_POST["id"] as $obj_id)
                {
                        $type = ilMediaPoolItem::lookupType($obj_id);
                        $title = ilMediaPoolItem::lookupTitle($obj_id);
                        
                        // check whether page can be removed
                        $add = "";
                        if ($type == "pg")
                        {
                                include_once("./Services/COPage/classes/class.ilPageContentUsage.php");
                                $usages = ilPageContentUsage::getUsages("incl", $obj_id, false);
                                if (count($usages) > 0)
                                {
                                        ilUtil::sendFailure(sprintf($lng->txt("mep_content_snippet_in_use"), $title), true);
                                        $ilCtrl->redirect($this, "listMedia");
                                }
                                else
                                {
                                        // check whether the snippet is used in older versions of pages
                                        $usages = ilPageContentUsage::getUsages("incl", $obj_id, true);
                                        if (count($usages) > 0)
                                        {
                                                $add = "<div class='small'>".$lng->txt("mep_content_snippet_used_in_older_versions")."</div>";
                                        }
                                }
                        }
                        
                        $caption = ilUtil::getImageTagByType($type, $this->tpl->tplPath).
                                " ".$title.$add;
                        
                        $cgui->addItem("id[]", $obj_id, $caption);
                }

                $this->tpl->setContent($cgui->getHTML());
        }
        
        function openClipboard()
        {
                global $ilCtrl, $ilAccess;

                $this->checkPermission("write");

                $ilCtrl->setParameterByClass("ileditclipboardgui", "returnCommand",
                        rawurlencode($ilCtrl->getLinkTarget($this,
                        "insertFromClipboard", "", false, false)));
                $ilCtrl->redirectByClass("ilEditClipboardGUI", "getObject");
        }
        

        function insertFromClipboard()
        {
                global $ilAccess;

                $this->checkPermission("write");

                include_once("./Services/Clipboard/classes/class.ilEditClipboardGUI.php");
                $ids = ilEditClipboardGUI::_getSelectedIDs();
                $not_inserted = array();
                if (is_array($ids))
                {
                        foreach ($ids as $id2)
                        {
                                $id = explode(":", $id2);
                                $type = $id[0];
                                $id = $id[1];
                                
                                if ($type == "mob")             // media object
                                {
                                        if (ilObjMEdiaPool::isForeignIdInTree($this->object->getId(), $id))
                                        {
                                                $not_inserted[] = ilObject::_lookupTitle($id)." [".
                                                        $id."]";
                                        }
                                        else
                                        {
                                                $item = new ilMediaPoolItem();
                                                $item->setType("mob");
                                                $item->setForeignId($id);
                                                $item->setTitle(ilObject::_lookupTitle($id));
                                                $item->create();
                                                if ($item->getId() > 0)
                                                {
                                                        $this->object->insertInTree($item->getId(), $_GET["mepitem_id"]);
                                                }
                                        }
                                }
                                if ($type == "incl")            // content snippet
                                {
                                        include_once("./Modules/MediaPool/classes/class.ilMediaPoolPage.php");
                                        include_once("./Modules/MediaPool/classes/class.ilMediaPoolItem.php");
                                        if (ilObjMEdiaPool::isItemIdInTree($this->object->getId(), $id))
                                        {
                                                $not_inserted[] = ilMediaPoolPage::lookupTitle($id)." [".
                                                        $id."]";
                                        }
                                        else
                                        {
                                                $original = new ilMediaPoolPage($id);
                                                
                                                // copy the page into the pool
                                                $item = new ilMediaPoolItem();
                                                $item->setType("pg");
                                                $item->setTitle(ilMediaPoolItem::lookupTitle($id));
                                                $item->create();
                                                if ($item->getId() > 0)
                                                {
                                                        $this->object->insertInTree($item->getId(), $_GET["mepitem_id"]);
                                                        
                                                        // create page
                                                        include_once("./Modules/MediaPool/classes/class.ilMediaPoolPage.php");
                                                        $page = new ilMediaPoolPage();
                                                        $page->setId($item->getId());
                                                        $page->setParentId($this->object->getId());
                                                        $page->create();
                                                        
                                                        // copy content
                                                        $original->copy($page->getId(), $page->getParentType(), $page->getParentId(), true);

                                                        //$page->setXMLContent($original->copyXMLContent());
                                                        //$page->buildDom();
                                                        //$page->update();
                                                }
                                        }
                                }
                        }
                }
                if (count($not_inserted) > 0)
                {
                        ilUtil::sendInfo($this->lng->txt("mep_not_insert_already_exist")."<br>".
                                implode($not_inserted,"<br>"), true);
                }
                $this->ctrl->redirect($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
        }


        function cancelRemove()
        {
                $this->ctrl->redirect($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
        }

        function remove()
        {
                global $ilAccess;

                $this->checkPermission("write");

                foreach($_POST["id"] as $obj_id)
                {
                        $this->object->deleteChild($obj_id);
                }

                ilUtil::sendSuccess($this->lng->txt("cont_obj_removed"),true);
                $this->ctrl->redirect($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
        }


        function copyToClipboard()
        {
                global $ilUser, $ilAccess;

                $this->checkPermission("write");                

                if(!isset($_POST["id"]))
                {
                        ilUtil::sendFailure($this->lng->txt("no_checkbox"), true);
                        $this->ctrl->redirect($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
                }

                foreach ($_POST["id"] as $obj_id)
                {
                        $type = ilMediaPoolItem::lookupType($obj_id);
                        if ($type == "fold")
                        {
                                ilUtil::sendFailure($this->lng->txt("cont_cant_copy_folders"), true);
                                $this->ctrl->redirect($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
                        }
                }
                foreach ($_POST["id"] as $obj_id)
                {
                        $fid = ilMediaPoolItem::lookupForeignId($obj_id);
                        $type = ilMediaPoolItem::lookupType($obj_id);
                        if ($type == "mob")
                        {
                                $ilUser->addObjectToClipboard($fid, "mob", "");
                        }
                        if ($type == "pg")
                        {
                                $ilUser->addObjectToClipboard($obj_id, "incl", "");
                        }
                }
                ilUtil::sendSuccess($this->lng->txt("copied_to_clipboard"),true);
                $this->ctrl->redirect($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
        }

        function addLocatorItems()
        {
                global $ilLocator, $ilAccess;
                
                if (!$this->getCreationMode() && $this->ctrl->getCmd() != "explorer")
                {
                        $tree =& $this->object->getTree();
                        $obj_id = ($_GET["mepitem_id"] == "")
                                ? $tree->getRootId()
                                : $_GET["mepitem_id"];
                        $path = $tree->getPathFull($obj_id);
                        foreach($path as $node)
                        {
                                if ($node["child"] == $tree->getRootId())
                                {
                                        $this->ctrl->setParameter($this, "mepitem_id", "");
                                        if ($ilAccess->checkAccess("read", "", $this->object->getRefId()))
                                        {
                                                $link = $this->ctrl->getLinkTarget($this, "listMedia");
                                        }
                                        else if ($ilAccess->checkAccess("visible", "", $this->object->getRefId()))
                                        {
                                                $link = $this->ctrl->getLinkTarget($this, "infoScreen");
                                        }
                                        $title = $this->object->getTitle();
                                        $this->ctrl->setParameter($this, "mepitem_id", $_GET["mepitem_id"]);
                                        $ilLocator->addItem($title, $link, "", $_GET["ref_id"]);
                                }
                        }
                }
        }
        
        
        function createFolderForm()
        {
                global $ilAccess, $tpl;

                $this->checkPermission("write");

                $this->initFolderForm("create");
                $tpl->setContent($this->form->getHTML());

/*              $folder_gui =& new ilObjFolderGUI("", 0, false, false);
                $this->ctrl->setParameterByClass("ilobjfoldergui", "obj_id", $_GET["obj_id"]);
                $folder_gui->setFormAction("save",
                        $this->ctrl->getFormActionByClass("ilobjfoldergui"));
                $folder_gui->createObject();*/
//              $this->tpl->show();
        }

        function editFolder()
        {
                global $tpl;

                $this->checkPermission("write");

                $this->initFolderForm();
                $this->getFolderValues();
                $tpl->setContent($this->form->getHTML());
        }
        
        public function getFolderValues()
        {
                $values = array();
        
                $values["title"] = ilMediaPoolItem::lookupTitle($_GET["mepitem_id"]);
        
                $this->form->setValuesByArray($values);
        }

        public function saveFolder()
        {
                global $tpl, $lng, $ilCtrl;

                $this->checkPermission("write");

                $this->initFolderForm("create");
                if ($this->form->checkInput())
                {
                        if ($this->object->createFolder($_POST["title"], (int) $_GET["mepitem_id"]))
                        {
                                ilUtil::sendSuccess($lng->txt("mep_folder_created"), true);
                        }
                        $ilCtrl->redirect($this, "listMedia");
                }
                
                $this->form->setValuesByPost();
                $tpl->setContent($this->form->getHtml());
        }
        
        function updateFolder()
        {
                global $lng, $ilCtrl, $tpl;

                $this->checkPermission("write");

                $this->initFolderForm("edit");
                if ($this->form->checkInput())
                {
                        $item = new ilMediaPoolItem($_GET["mepitem_id"]);
                        $item->setTitle($_POST["title"]);
                        $item->update();
                        ilUtil::sendSuccess($lng->txt("msg_obj_modified"), true);
                        $ilCtrl->setParameter($this, "mepitem_id",
                                $this->object->getTree()->getParentId($_GET["mepitem_id"]));
                        $ilCtrl->redirect($this, "listMedia");
                }
                
                $this->form->setValuesByPost();
                $tpl->setContent($this->form->getHtml());
        }

        public function initFolderForm($a_mode = "edit")
        {
                global $lng, $ilCtrl;
        
                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();
                
                // desc
                $ti = new ilTextInputGUI($lng->txt("title"), "title");
                $ti->setMaxLength(128);
                $ti->setRequired(true);
                $this->form->addItem($ti);

                // save and cancel commands
                if ($a_mode == "create")
                {
                        $this->form->addCommandButton("saveFolder", $lng->txt("save"));
                        $this->form->addCommandButton("cancelSave", $lng->txt("cancel"));
                        $this->form->setTitle($lng->txt("mep_new_folder"));
                }
                else
                {
                        $this->form->addCommandButton("updateFolder", $lng->txt("save"));
                        $this->form->addCommandButton("cancelFolderUpdate", $lng->txt("cancel"));
                        $this->form->setTitle($lng->txt("mep_edit_folder"));
                }
                        
                $this->form->setFormAction($ilCtrl->getFormAction($this));
        }

        function cancelFolderUpdate()
        {
                global $ilCtrl;
                $ilCtrl->setParameter($this, "mepitem_id",
                        $this->object->getTree()->getParentId($_GET["mepitem_id"]));
                $ilCtrl->redirect($this, "listMedia");
        }

        function cancelSave()
        {
                global $ilCtrl;
                $ilCtrl->redirect($this, "listMedia");
        }
        

        function createMediaPoolPage()
        {
                global $tpl;

                $this->checkPermission("write");

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

        function editMediaPoolPage()
        {
                global $tpl;

                $this->checkPermission("write");

                $this->setMediaPoolPageTabs();
                
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPageGUI.php");
                $mep_page_gui = new ilMediaPoolPageGUI($_GET["mepitem_id"], $_GET["old_nr"]);
                $mep_page_gui->getTabs();

                $this->initMediaPoolPageForm("edit");
                $this->getMediaPoolPageValues();
                $tpl->setContent($this->form->getHTML());
        }

        public function saveMediaPoolPage()
        {
                global $tpl, $lng, $ilCtrl;

                $this->checkPermission("write");

                $this->initMediaPoolPageForm("create");
                if ($this->form->checkInput())
                {
                        // create media pool item
                        include_once("./Modules/MediaPool/classes/class.ilMediaPoolItem.php");
                        $item = new ilMediaPoolItem();
                        $item->setTitle($_POST["title"]);
                        $item->setType("pg");
                        $item->create();
                        
                        if ($item->getId() > 0)
                        {
                                // put in tree
                                $tree = $this->object->getTree();
                                $parent = $_GET["mepitem_id"] > 0
                                        ? $_GET["mepitem_id"]
                                        : $tree->getRootId();
                                $this->object->insertInTree($item->getId(), $parent);
                                
                                // create page
                                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPage.php");
                                $page = new ilMediaPoolPage();
                                $page->setId($item->getId());
                                $page->setParentId($this->object->getId());
                                $page->create();
                                
                                $ilCtrl->setParameterByClass("ilmediapoolpagegui", "mepitem_id", $item->getId());
                                $ilCtrl->redirectByClass("ilmediapoolpagegui", "edit");

                        }
                        $ilCtrl->redirect($this, "listMedia");
                }
                
                $this->form->setValuesByPost();
                $tpl->setContent($this->form->getHtml());
        }

        function updateMediaPoolPage()
        {
                global $lng, $ilCtrl, $tpl;

                $this->checkPermission("write");

                $this->initMediaPoolPageForm("edit");
                if ($this->form->checkInput())
                {
                        $item = new ilMediaPoolItem($_GET["mepitem_id"]);
                        $item->setTitle($_POST["title"]);                       
                        $item->update();
                        ilUtil::sendSuccess($lng->txt("msg_obj_modified"), true);
                        $ilCtrl->redirect($this, "editMediaPoolPage");
                }
                
                $this->form->setValuesByPost();
                $tpl->setContent($this->form->getHtml());
        }
        public function initMediaPoolPageForm($a_mode = "edit")
        {
                global $lng, $ilCtrl;
        
                include_once("Services/Form/classes/class.ilPropertyFormGUI.php");
                $this->form = new ilPropertyFormGUI();
        
                // title
                $ti = new ilTextInputGUI($lng->txt("title"), "title");
                $ti->setMaxLength(128);
                $ti->setRequired(true);
                $this->form->addItem($ti);
        
                // save and cancel commands
                if ($a_mode == "create")
                {
                        $this->form->addCommandButton("saveMediaPoolPage", $lng->txt("save"));
                        $this->form->addCommandButton("cancelSave", $lng->txt("cancel"));
                        $this->form->setTitle($lng->txt("mep_new_content_snippet"));
                }
                else
                {
                        $this->form->addCommandButton("updateMediaPoolPage", $lng->txt("save"));
                        $this->form->setTitle($lng->txt("mep_edit_content_snippet"));
                }
                        
                $this->form->setFormAction($ilCtrl->getFormAction($this));
        }

        public function getMediaPoolPageValues()
        {
                $values = array();
        
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolItem.php");
                $values["title"] = ilMediaPoolItem::lookupTitle($_GET["mepitem_id"]);
        
                $this->form->setValuesByArray($values);
        }

        function setMediaPoolPageTabs()
        {
                global $ilTabs, $ilCtrl, $lng;
        
                $ilTabs->clearTargets();
                //$ilTabs->addTab("mep_pg_prop", $lng->txt("mep_page_properties"),
                //      $ilCtrl->getLinkTarget($this, "editMediaPoolPage"));
                $ilTabs->addTarget("mep_page_properties", $ilCtrl->getLinkTarget($this, "editMediaPoolPage"),
                        "editMediaPoolPage", get_class($this));
                $ilTabs->addTarget("cont_usage", $ilCtrl->getLinkTarget($this, "showMediaPoolPageUsages"),
                        array("showMediaPoolPageUsages", "showAllMediaPoolPageUsages"), get_class($this));
                $ilCtrl->setParameter($this, "mepitem_id", $this->object->tree->getParentId($_GET["mepitem_id"]));
                $ilTabs->setBackTarget($lng->txt("mep_folder"), $ilCtrl->getLinkTarget($this, "listMedia"));
                $ilCtrl->setParameter($this, "mepitem_id", $_GET["mepitem_id"]);
        }

        function showAllMediaPoolPageUsages()
        {
                $this->showMediaPoolPageUsages(true);
        }

        
        function showMediaPoolPageUsages($a_all = false)
        {
                global $ilTabs, $ilCtrl, $lng, $tpl;

                $this->checkPermission("write");

                $this->setMediaPoolPageTabs();
                
                $ilTabs->addSubTab("current_usages", $lng->txt("cont_current_usages"),
                        $ilCtrl->getLinkTarget($this, "showMediaPoolPageUsages"));
                
                $ilTabs->addSubTab("all_usages", $lng->txt("cont_all_usages"),
                        $ilCtrl->getLinkTarget($this, "showAllMediaPoolPageUsages"));
                
                if ($a_all)
                {
                        $ilTabs->activateSubTab("all_usages");
                        $cmd = "showAllMediaPoolPageUsages";
                }
                else
                {
                        $ilTabs->activateSubTab("current_usages");
                        $cmd = "showMediaPoolPageUsages";
                }

                
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPageGUI.php");
                $mep_page_gui = new ilMediaPoolPageGUI($_GET["mepitem_id"], $_GET["old_nr"]);
                $mep_page_gui->getTabs();
                
                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPage.php");
                $page = new ilMediaPoolPage((int) $_GET["mepitem_id"]);

                include_once("./Modules/MediaPool/classes/class.ilMediaPoolPageUsagesTableGUI.php");
                $table = new ilMediaPoolPageUsagesTableGUI($this, $cmd, $page, $a_all);

                $tpl->setContent($table->getHTML());
                
        }
        
        

        function setTabs()
        {
                global $ilAccess, $ilTabs, $ilCtrl, $ilHelp;

                $ilHelp->setScreenIdComponent("mep");
                
                if ($ilAccess->checkAccess('read', '', $this->ref_id) ||
                        $ilAccess->checkAccess('write', '', $this->ref_id))
                {
                        $ilTabs->addTarget("objs_fold", $this->ctrl->getLinkTarget($this, ""),
                                "listMedia", "", "_top");

                        $ilCtrl->setParameter($this, "mepitem_id", "");
                        $ilTabs->addTarget("mep_all_mobs", $this->ctrl->getLinkTarget($this, "allMedia"),
                                "allMedia", "", "_top");
                        $ilCtrl->setParameter($this, "mepitem_id", $_GET["mepitem_id"]);
                }

                // info tab
                if ($ilAccess->checkAccess('visible', '', $this->ref_id) ||
                        $ilAccess->checkAccess('read', '', $this->ref_id) ||
                        $ilAccess->checkAccess('write', '', $this->ref_id))
                {
                        $force_active = ($this->ctrl->getNextClass() == "ilinfoscreengui"
                                || strtolower($_GET["cmdClass"]) == "ilnotegui")
                                ? true
                                : false;
        //echo "-$force_active-";
                        $ilTabs->addTarget("info_short",
                                 $this->ctrl->getLinkTargetByClass(
                                 array("ilobjmediapoolgui", "ilinfoscreengui"), "showSummary"),
                                 array("showSummary", "infoScreen"),
                                 "", "", $force_active);
                }

                if ($ilAccess->checkAccess("write", "", $this->object->getRefId()))
                {
                        $ilTabs->addTarget("settings", $this->ctrl->getLinkTarget($this, "edit"),
                                "edit", array("", "ilobjmediapoolgui"));
                }
                
                if ($ilAccess->checkAccess("write", "", $this->object->getRefId()))
                {
                        $ilTabs->addTarget("clipboard", $this->ctrl->getLinkTarget($this, "openClipboard"),
                                "view", "ileditclipboardgui");
                }

                if ($ilAccess->checkAccess("write", "", $this->object->getRefId()))
                {
                        $ilTabs->addTarget("export", $this->ctrl->getLinkTargetByClass("ilexportgui", ""),
                                "", "ilexportgui");

                        $ilTabs->addTarget("import", $this->ctrl->getLinkTargetByClass("ilmediapoolimportgui", ""),
                                "", "ilmediapoolimportgui");
                }
                
                if ($ilAccess->checkAccess("edit_permission", "", $this->object->getRefId()))
                {
                        $ilTabs->addTarget("perm_settings",
                                $this->ctrl->getLinkTargetByClass(array(get_class($this),'ilpermissiongui'), "perm"), array("perm","info","owner"), 'ilpermissiongui');
                }

        }

        function setSettingsSubTabs($a_active)
        {
                global $ilTabs, $lng, $ilAccess;

                if ($ilAccess->checkAccess("write", "", $this->object->getRefId()))
                {
                        $ilTabs->addSubTab("settings",
                                $lng->txt("settings"),
                                $this->ctrl->getLinkTarget($this, "edit"));

                        $mset = new ilSetting("mobs");
                        if ($mset->get("mep_activate_pages"))
                        {
                                $ilTabs->addSubTabTarget("obj_multilinguality",
                                $this->ctrl->getLinkTargetByClass("ilobjecttranslationgui", ""));
                        }
                }

                $ilTabs->setSubTabActive($a_active);
        }


        public static function _goto($a_target)
        {
                global $ilAccess, $ilErr, $lng;
                
                $targets = explode('_',$a_target);
                if(count((array) $targets) > 1)
                {
                        $ref_id = $targets[0];
                        $subitem_id = $targets[1];
                }
                else
                {
                        $ref_id = $targets[0];
                }

                if ($ilAccess->checkAccess("read", "", $ref_id))
                {
                        $_GET["baseClass"] = "ilMediaPoolPresentationGUI";
                        $_GET["ref_id"] = $ref_id;
                        $_GET['mepitem_id'] = $subitem_id;
                        include("ilias.php");
                        exit;
                } else if ($ilAccess->checkAccess("visible", "", $ref_id))
                {
                        $_GET["baseClass"] = "ilMediaPoolPresentationGUI";
                        $_GET["ref_id"] = $ref_id;
                        $_GET["cmd"] = "infoScreen";
                        include("ilias.php");
                        exit;
                }
                else if ($ilAccess->checkAccess("read", "", ROOT_FOLDER_ID))
                {
                        ilUtil::sendFailure(sprintf($lng->txt("msg_no_perm_read_item"),
                                ilObject::_lookupTitle(ilObject::_lookupObjId($a_target))), true);
                        ilObjectGUI::_gotoRepositoryRoot();
                }

                $ilErr->raiseError($lng->txt("msg_no_perm_read"), $ilErr->FATAL);
        }

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

        function infoScreen()
        {
                global $ilAccess;

                if (!$ilAccess->checkAccess("visible", "", $this->ref_id) &&
                        !$ilAccess->checkAccess("read", "", $this->ref_id) &&
                        !$ilAccess->checkAccess("write", "", $this->ref_id))
                {
                        $this->ilias->raiseError($this->lng->txt("msg_no_perm_read"),$this->ilias->error_obj->MESSAGE);
                }
                
                if ($this->ctrl->getCmd() == "infoScreen")
                {
                        $this->ctrl->setCmd("showSummary");
                        $this->ctrl->setCmdClass("ilinfoscreengui");
                }

                include_once("./Services/InfoScreen/classes/class.ilInfoScreenGUI.php");
                $info = new ilInfoScreenGUI($this);

                $info->enablePrivateNotes();
                
                if ($ilAccess->checkAccess("read", "", $_GET["ref_id"]))
                {
                        //$info->enableNews();
                }

                // no news editing for files, just notifications
//              $info->enableNewsEditing(false);
                if ($ilAccess->checkAccess("write", "", $_GET["ref_id"]))
                {
//                      $news_set = new ilSetting("news");
//                      $enable_internal_rss = $news_set->get("enable_rss_for_internal");
                        
//                      if ($enable_internal_rss)
//                      {
//                              $info->setBlockProperty("news", "settings", true);
//                              $info->setBlockProperty("news", "public_notifications_option", true);
//                      }
                }

                
                // standard meta data
                $info->addMetaDataSections($this->object->getId(),0, $this->object->getType());
                
                // forward the command
                $this->ctrl->forwardCommand($info);
                
//              $this->tpl->show();
        }



        function selectUploadDirFiles($a_files = null)
        {
                global $tpl, $ilTabs, $lng, $ilCtrl, $ilToolbar;
                
                if(!$a_files)
                {
                        $a_files = $_POST["file"];
                }

                $ilTabs->clearTargets();
                $ilTabs->setBackTarget($lng->txt("back"),
                        $ilCtrl->getLinkTarget($this, "listMedia"));

                $this->checkPermission("write");

                if (ilMainMenuGUI::_checkAdministrationPermission())
                {

                        // action type
                        include_once("./Services/Form/classes/class.ilSelectInputGUI.php");
                        $options = array(
                                "rename" => $lng->txt("mep_up_dir_move"),
                                "copy" => $lng->txt("mep_up_dir_copy"),
                                );
                        $si = new ilSelectInputGUI("", "action");
                        $si->setOptions($options);
                        $ilToolbar->addInputItem($si);
                        $ilToolbar->setCloseFormTag(false);
                        $ilToolbar->setFormAction($ilCtrl->getFormAction($this));
                        $ilToolbar->setFormName("mep_up_form");

                        include_once("./Modules/MediaPool/classes/class.ilUploadDirFilesTableGUI.php");
                        $tab = new ilUploadDirFilesTableGUI($this, "selectUploadDirFiles",
                                $a_files);
                        $tab->setFormName("mep_up_form");
                        $tpl->setContent($tab->getHTML());
                }
        }

        function createMediaFromUploadDir()
        {
                $this->checkPermission("write");

                $mset = new ilSetting("mobs");
                $upload_dir = trim($mset->get("upload_dir"));

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

                if (is_array($_POST["file"]) && ilMainMenuGUI::_checkAdministrationPermission())
                {
                        foreach ($_POST["file"] as $f)
                        {
                                $f  = str_replace("..", "", $f);
                                $fullpath = $upload_dir."/".$f;
                                $mob = new ilObjMediaObject();
                                        $mob->setTitle(basename($fullpath));
                                $mob->setDescription("");
                                $mob->create();

                                // determine and create mob directory, move uploaded file to directory
                                //$mob_dir = ilUtil::getWebspaceDir()."/mobs/mm_".$a_mob->getId();
                                $mob->createDirectory();
                                $mob_dir = ilObjMediaObject::_getDirectory($mob->getId());

                                $media_item = new ilMediaItem();
                                $mob->addMediaItem($media_item);
                                $media_item->setPurpose("Standard");

                                $file = $mob_dir."/".basename($fullpath);
                                ilUtil::moveUploadedFile($fullpath,
                                        basename($fullpath), $file, false, $_POST["action"]);

                                // get mime type
                                $format = ilObjMediaObject::getMimeType($file);
                                $location = basename($fullpath);

                                // set real meta and object data
                                $media_item->setFormat($format);
                                $media_item->setLocation($location);
                                $media_item->setLocationType("LocalFile");

                                $mob->setDescription($format);

                                // determine width and height of known image types
                                $wh = ilObjMediaObject::_determineWidthHeight($format,
                                        "File", $mob_dir."/".$location, $media_item->getLocation(),
                                        true, true, "", "");
                                $media_item->setWidth($wh["width"]);
                                $media_item->setHeight($wh["height"]);
                                if ($wh["info"] != "")
                                {
        //                              ilUtil::sendInfo($wh["info"], true);
                                }

                                $media_item->setHAlign("Left");
                                ilUtil::renameExecutables($mob_dir);
                                $mob->update();


                                // put it into current folder
                                $mep_item = new ilMediaPoolItem();
                                $mep_item->setTitle($mob->getTitle());
                                $mep_item->setType("mob");
                                $mep_item->setForeignId($mob->getId());
                                $mep_item->create();

                                $tree = $this->object->getTree();
                                $parent = ($_GET["mepitem_id"] == "")
                                        ? $tree->getRootId()
                                        : $_GET["mepitem_id"];
                                $tree->insertNode($mep_item->getId(), $parent);
                        }
                }
                ilUtil::redirect("ilias.php?baseClass=ilMediaPoolPresentationGUI&cmd=listMedia&ref_id=".
                        $_GET["ref_id"]."&mepitem_id=".$_GET["mepitem_id"]);

        }

        static function getPreviewModalHTML($a_mpool_ref_id, $a_tpl)
        {
                global $tpl, $ilCtrl, $lng;

                require_once("./Services/MediaObjects/classes/class.ilObjMediaObjectGUI.php");
                ilObjMediaObjectGUI::includePresentationJS($a_tpl);

                $tpl->addJavaScript("./Modules/MediaPool/js/ilMediaPool.js");

                $ilCtrl->setParameterByClass("ilobjmediapoolgui", "mepitem_id", "");
                $ilCtrl->setParameterByClass("ilobjmediapoolgui", "ref_id", $a_mpool_ref_id);
                $tpl->addOnloadCode("il.MediaPool.setPreviewUrl('".$ilCtrl->getLinkTargetByClass(array("ilmediapoolpresentationgui", "ilobjmediapoolgui"), "showPreview", "", false, false)."');");
                $ilCtrl->setParameterByClass("ilobjmediapoolgui", "mepitem_id", $_GET["mepitem_id"]);
                $ilCtrl->setParameterByClass("ilobjmediapoolgui", "ref_id", $_GET["red_id"]);

                include_once("./Services/UIComponent/Modal/classes/class.ilModalGUI.php");
                $modal = ilModalGUI::getInstance();
                $modal->setHeading($lng->txt("preview"));
                $modal->setId("ilMepPreview");
                $modal->setType(ilModalGUI::TYPE_LARGE);
                $modal->setBody("<iframe id='ilMepPreviewContent'></iframe>");

                return $modal->getHTML();
        }

        function export()
        {
                $ot = ilObjectTranslation::getInstance($this->object->getId());
                $opt = "";
                if ($ot->getContentActivated())
                {
                        $format = explode("_", $_POST["format"]);
                        $opt = ilUtil::stripSlashes($format[1]);
                }

                $this->object->exportXML(($opt == "master"));
        }

}
?>