class.ilObjMediaPoolGUI.php

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<?php
/* Copyright (c) 1998-2017 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
{
    protected $tabs;
 
    protected $error;
 
    protected $help;
 
 
    public function __construct($a_id = 0, $a_id_type = self::REPOSITORY_NODE_ID, $a_parent_node_id = 0)
    {
        parent::__construct($a_id, $a_id_type, $a_parent_node_id);
        global $DIC;
 
        $this->tabs = $DIC->tabs();
        $this->error = $DIC["ilErr"];
        $this->locator = $DIC["ilLocator"];
        $this->help = $DIC["ilHelp"];
    }
 
    public $output_prepared;
 
    protected function afterConstructor()
    {
        $lng = $this->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 public function getType()
    {
        return "mep";
    }
    
    public function executeCommand()
    {
        $ilTabs = $this->tabs;
        $lng = $this->lng;
        $ilAccess = $this->access;
        $tpl = $this->tpl;
        $ilCtrl = $this->ctrl;
        
        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();
                $ilTabs->clearTargets();
                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->setMediaPoolPageTabs();
                $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 = $this->ctrl->forwardCommand($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");
                $this->ctrl->forwardCommand($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);
                $this->ctrl->forwardCommand($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");
                    $exp_gui->addFormat("xml_masternomedia", "XML (" . $lng->txt("mep_master_language_only_no_media") . ")", $this, "export");
                }
                $this->ctrl->forwardCommand($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
                    );
                    $this->ctrl->forwardCommand($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;
 
            case "ilmobmultisrtuploadgui":
                $this->checkPermission("write");
                $this->prepareOutput();
                $this->addHeaderAction();
                //$this->setTabs("content");
                $this->setContentSubTabs("srt_files");
                include_once("./Services/MediaObjects/classes/class.ilMobMultiSrtUploadGUI.php");
                include_once("./Modules/MediaPool/classes/class.ilMepMultiSrt.php");
                $gui = new ilMobMultiSrtUploadGUI(new ilMepMultiSrt($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;
        }
    }
 
    public 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;
    }
 
    public function afterSave(ilObject $newObj)
    {
        // always send a message
        ilUtil::sendSuccess($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);
    }
 
    public 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"));
    }
 
    public function listMedia()
    {
        $ilAccess = $this->access;
        $tpl = $this->tpl;
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;
        $ilToolbar = $this->toolbar;
        $lng = $this->lng;
 
        $ilCtrl->setParameter($this, "mep_mode", "listMedia");
 
        $this->checkPermission("read");
 
        $ilTabs->setTabActive("content");
        $this->setContentSubTabs("content");
        
        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());
    }
 
    public function allMedia()
    {
        $tpl = $this->tpl;
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;
        $ilUser = $this->user;
 
        $ilCtrl->setParameter($this, "mep_mode", "allMedia");
 
        $this->checkPermission("read");
        $ilTabs->setTabActive("content");
        $this->setContentSubTabs("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());
    }
    
    public 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();
    }
 
    public 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();
    }
 
    public function getTemplate()
    {
        $this->tpl->getStandardTemplate();
    }
 
 
    public function getParentFolderId()
    {
        if ($_GET["mepitem_id"] == "") {
            return "";
        }
        $par_id = $this->object->getPoolTree()->getParentId($_GET["mepitem_id"]);
        if ($par_id != $this->object->getPoolTree()->getRootId()) {
            return $par_id;
        } else {
            return "";
        }
    }
    
    protected function showMedia()
    {
        $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/Content/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);
    }
    
    public function showPage()
    {
        $tpl = $this->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/Content/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) $_GET["mepitem_id"]);
        include_once("./Services/Style/Content/classes/class.ilObjStyleSheet.php");
        //$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>";
 
 
        $tpl->show();
        exit;
    }
    
 
    public 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;
        }
    }
 
 
    public function showFullscreen()
    {
        $this->showMedia();
    }
    
    public function confirmRemove()
    {
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
        $ilErr = $this->error;
 
        $this->checkPermission("write");
 
        if (!isset($_POST["id"])) {
            $ilErr->raiseError($this->lng->txt("no_checkbox"), $ilErr->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_remove_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());
    }
    
    public function openClipboard()
    {
        $ilCtrl = $this->ctrl;
        $ilAccess = $this->access;
 
        $this->checkPermission("write");
 
        $ilCtrl->setParameterByClass(
            "ileditclipboardgui",
            "returnCommand",
            rawurlencode($ilCtrl->getLinkTarget(
                $this,
                "insertFromClipboard",
                "",
                false,
                false
            ))
        );
        $ilCtrl->redirectByClass("ilEditClipboardGUI", "getObject");
    }
    
 
    public function insertFromClipboard()
    {
        $ilAccess = $this->access;
 
        $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(), $page->getParentId(), true);
                        }
                    }
                }
            }
        }
        if (count($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");
    }
 
 
    public function cancelRemove()
    {
        $this->ctrl->redirect($this, $_GET["mep_mode"] ? $_GET["mep_mode"] : "listMedia");
    }
 
    public function remove()
    {
        $ilAccess = $this->access;
 
        $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");
    }
 
 
    public function copyToClipboard()
    {
        $ilUser = $this->user;
        $ilAccess = $this->access;
 
        $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");
    }
 
    public function addLocatorItems()
    {
        $ilLocator = $this->locator;
        $ilAccess = $this->access;
        
        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");
                    } elseif ($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"]);
                }
            }
        }
    }
    
    
    public function createFolderForm()
    {
        $ilAccess = $this->access;
        $tpl = $this->tpl;
 
        $this->checkPermission("write");
 
        $this->initFolderForm("create");
        $tpl->setContent($this->form->getHTML());
    }
 
    public function editFolder()
    {
        $tpl = $this->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()
    {
        $tpl = $this->tpl;
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
 
        $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());
    }
    
    public function updateFolder()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        $tpl = $this->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")
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
    
        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));
    }
 
    public function cancelFolderUpdate()
    {
        $ilCtrl = $this->ctrl;
        $ilCtrl->setParameter(
            $this,
            "mepitem_id",
            $this->object->getTree()->getParentId($_GET["mepitem_id"])
        );
        $ilCtrl->redirect($this, "listMedia");
    }
 
    public function cancelSave()
    {
        $ilCtrl = $this->ctrl;
        $ilCtrl->redirect($this, "listMedia");
    }
    
 
    public function createMediaPoolPage()
    {
        $tpl = $this->tpl;
 
        $this->checkPermission("write");
 
        $this->initMediaPoolPageForm("create");
        $tpl->setContent($this->form->getHTML());
    }
 
    public function editMediaPoolPage()
    {
        $tpl = $this->tpl;
        $ilTabs = $this->tabs;
 
        $this->checkPermission("write");
 
        $ilTabs->clearTargets();
        
        include_once("./Modules/MediaPool/classes/class.ilMediaPoolPageGUI.php");
        $mep_page_gui = new ilMediaPoolPageGUI($_GET["mepitem_id"], $_GET["old_nr"]);
        $mep_page_gui->getTabs();
 
        $this->setMediaPoolPageTabs();
 
        $this->initMediaPoolPageForm("edit");
        $this->getMediaPoolPageValues();
        $tpl->setContent($this->form->getHTML());
    }
 
    public function saveMediaPoolPage()
    {
        $tpl = $this->tpl;
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
 
        $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());
    }
 
    public function updateMediaPoolPage()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        $tpl = $this->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")
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
    
        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);
    }
 
    public function setMediaPoolPageTabs()
    {
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
    
        //              $ilTabs->clearTargets();
        //$ilTabs->addTab("mep_pg_prop", $lng->txt("mep_page_properties"),
        //      $ilCtrl->getLinkTarget($this, "editMediaPoolPage"));
        $ilTabs->addTarget(
            "cont_usage",
            $ilCtrl->getLinkTarget($this, "showMediaPoolPageUsages"),
            array("showMediaPoolPageUsages", "showAllMediaPoolPageUsages"),
            get_class($this)
        );
        $ilTabs->addTarget(
            "settings",
            $ilCtrl->getLinkTarget($this, "editMediaPoolPage"),
            "editMediaPoolPage",
            get_class($this)
        );
        $ilCtrl->setParameter($this, "mepitem_id", $this->object->getPoolTree()->getParentId($_GET["mepitem_id"]));
        $ilTabs->setBackTarget($lng->txt("mep_folder"), $ilCtrl->getLinkTarget($this, "listMedia"));
        $ilCtrl->setParameter($this, "mepitem_id", $_GET["mepitem_id"]);
    }
 
    public function showAllMediaPoolPageUsages()
    {
        $this->showMediaPoolPageUsages(true);
    }
 
    
    public function showMediaPoolPageUsages($a_all = false)
    {
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;
        $lng = $this->lng;
        $tpl = $this->tpl;
 
        $this->checkPermission("write");
 
        $ilTabs->clearTargets();
        
        $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();
 
        $this->setMediaPoolPageTabs();
        
        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());
    }
    
    
 
    public function setContentSubTabs($a_active)
    {
        $ilAccess = $this->access;
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;
 
        $ilTabs->addSubTab("content", $this->lng->txt("objs_fold"), $this->ctrl->getLinkTarget($this, ""));
 
        $ilCtrl->setParameter($this, "mepitem_id", "");
        $ilTabs->addSubTab("mep_all_mobs", $this->lng->txt("mep_all_mobs"), $this->ctrl->getLinkTarget($this, "allMedia"));
        $ilCtrl->setParameter($this, "mepitem_id", $_GET["mepitem_id"]);
 
        if ($ilAccess->checkAccess('write', '', $this->ref_id)) {
            $ilTabs->addSubtab(
                "srt_files",
                $this->lng->txt("mep_media_subtitles"),
                $ilCtrl->getLinkTargetByClass("ilmobmultisrtuploadgui", "")
            );
        }
 
        $ilTabs->activateSubTab($a_active);
    }
 
 
    public function setTabs()
    {
        $ilAccess = $this->access;
        $ilTabs = $this->tabs;
        $ilCtrl = $this->ctrl;
        $ilHelp = $this->help;
 
        $ilHelp->setScreenIdComponent("mep");
        
        if ($ilAccess->checkAccess('read', '', $this->ref_id) ||
            $ilAccess->checkAccess('write', '', $this->ref_id)) {
            $ilTabs->addTab("content", $this->lng->txt("mep_content"), $this->ctrl->getLinkTarget($this, ""));
            //$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'
            );
        }
    }
 
    public function setSettingsSubTabs($a_active)
    {
        $ilTabs = $this->tabs;
        $lng = $this->lng;
        $ilAccess = $this->access;
 
        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 $DIC;
 
        $ilAccess = $DIC->access();
        $ilErr = $DIC["ilErr"];
        $lng = $DIC->language();
        
        $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'] = $subitem_id;
            include("ilias.php");
            exit;
        } elseif ($ilAccess->checkAccess("visible", "", $ref_id)) {
            $_GET["baseClass"] = "ilMediaPoolPresentationGUI";
            $_GET["ref_id"] = $ref_id;
            $_GET["cmd"] = "infoScreen";
            include("ilias.php");
            exit;
        } elseif ($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);
    }
 
    public function infoScreenObject()
    {
        $this->ctrl->setCmd("showSummary");
        $this->ctrl->setCmdClass("ilinfoscreengui");
        $this->infoScreen();
    }
 
    public function infoScreen()
    {
        $ilAccess = $this->access;
        $ilErr = $this->error;
 
        if (!$ilAccess->checkAccess("visible", "", $this->ref_id) &&
            !$ilAccess->checkAccess("read", "", $this->ref_id) &&
            !$ilAccess->checkAccess("write", "", $this->ref_id)) {
            $ilErr->raiseError($this->lng->txt("msg_no_perm_read"), $ilErr->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();
 
 
        // standard meta data
        $info->addMetaDataSections($this->object->getId(), 0, $this->object->getType());
        
        // forward the command
        $this->ctrl->forwardCommand($info);
    }
 
 
 
    public function selectUploadDirFiles($a_files = null)
    {
        $tpl = $this->tpl;
        $ilTabs = $this->tabs;
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        $ilToolbar = $this->toolbar;
        
        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());
        }
    }
 
    public 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);
 
                // virus handling
                $vir = ilUtil::virusHandling($fullpath, basename($fullpath));
                if (!$vir[0]) {
                    ilUtil::sendFailure($this->lng->txt("file_is_infected") . "<br />" . $vir[1], true);
                    ilUtil::redirect("ilias.php?baseClass=ilMediaPoolPresentationGUI&cmd=listMedia&ref_id=" .
                        $_GET["ref_id"] . "&mepitem_id=" . $_GET["mepitem_id"]);
                }
 
                switch ($_POST["action"]) {
                    case "rename":
                        rename($fullpath, $file);
                        break;
 
                    case "copy":
                        copy($fullpath, $file);
                        break;
                }
 
                // 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"]);
    }
 
    public static function getPreviewModalHTML($a_mpool_ref_id, $a_tpl)
    {
        global $DIC;
 
        $tpl = $DIC["tpl"];
        $ilCtrl = $DIC->ctrl();
        $lng = $DIC->language();
 
        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();
    }
 
    public 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);
    }
}