class.ilBookmarkAdministrationGUI.php

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<?php

/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once("./Services/Bookmarks/classes/class.ilBookmarkFolder.php");
require_once("./Services/Bookmarks/classes/class.ilBookmark.php");
require_once("./Services/Table/classes/class.ilTableGUI.php");

class ilBookmarkAdministrationGUI
{
    protected $ctrl;

    protected $user;

    protected $toolbar;

    protected $error;

    protected $tabs;

    public $user_id;

    public $tpl;
    public $lng;

    public $tree;
    public $id;
    public $data;
    public $textwidth = 100;

    public function __construct()
    {
        global $DIC;

        $this->user = $DIC->user();
        $this->toolbar = $DIC->toolbar();
        $this->error = $DIC["ilErr"];
        $this->tabs = $DIC->tabs();
        $tpl = $DIC["tpl"];
        $lng = $DIC->language();
        $ilCtrl = $DIC->ctrl();
        $ilUser = $DIC->user();

        //              $tpl->enableAdvancedColumnLayout(true, false);

        $tpl->getStandardTemplate();
        
        //print_r($_SESSION["error_post_vars"]);
        // if no bookmark folder id is given, take dummy root node id (that is 1)
        $this->id = (empty($_GET["bmf_id"]))
            ? 1
            : $_GET["bmf_id"];
    
        // initiate variables
        $this->tpl = $tpl;
        $this->lng = $lng;
        $this->ctrl = $ilCtrl;
        $this->ctrl->setParameter($this, "bmf_id", $this->id);
        $this->user_id = $ilUser->getId();

        $this->tree = new ilTree($this->user_id);
        $this->tree->setTableNames('bookmark_tree', 'bookmark_data');
        $this->root_id = $this->tree->readRootId();

        $this->lng->loadLanguageModule("bkm");
        
        $this->mode = "tree";
    }

    public function executeCommand()
    {
        $next_class = $this->ctrl->getNextClass();

        switch ($next_class) {
            default:
                $cmd = $this->ctrl->getCmd("view");
                $this->displayHeader();
                $this->$cmd();
                if ($this->getMode() == 'tree') {
                    $this->explorer();
                }
                break;
        }
        $this->tpl->show(true);
        return true;
    }

    public function executeAction()
    {
        switch ($_POST["selected_cmd"]) {
            case "delete":
                $this->delete();
                break;
            case "export":
                $this->export();
                break;
            case "sendmail":
                $this->sendmail();
                break;
            default:
                $this->view();
                break;
        }
        return true;
    }

    public function getMode()
    {
        return $this->mode;
    }

    public function explorer()
    {
        $tpl = $this->tpl;

        include_once("./Services/Bookmarks/classes/class.ilBookmarkExplorerGUI.php");
        $exp = new ilBookmarkExplorerGUI($this, "explorer");
        if (!$exp->handleCommand()) {
            $tpl->setLeftNavContent($exp->getHTML());
        }
    }


    public function displayHeader()
    {
        // output locator
        $this->displayLocator();

        // output message
        if ($this->message) {
            ilUtil::sendInfo($this->message);
        }
        ilUtil::infoPanel();

        $this->tpl->setTitle($this->lng->txt("bookmarks"));
    }

    /*
    * display content of bookmark folder
    */
    public function view()
    {
        $ilToolbar = $this->toolbar;
        
        if ($this->id > 0 && !$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }
        
        $ilToolbar->addButton(
            $this->lng->txt("bookmark_new"),
            $this->ctrl->getLinkTarget($this, "newFormBookmark")
        );
        $ilToolbar->addButton(
            $this->lng->txt("bookmark_folder_new"),
            $this->ctrl->getLinkTarget($this, "newFormBookmarkFolder")
        );

        $objects = ilBookmarkFolder::getObjects($this->id);

        include_once 'Services/Bookmarks/classes/class.ilBookmarkAdministrationTableGUI.php';
        $table = new ilBookmarkAdministrationTableGUI($this);
        $table->setId('bookmark_adm_table');
        $table->setData($objects);
        $this->tpl->setVariable("ADM_CONTENT", $table->getHTML());
    }

    public function add_cell($val, $link = "")
    {
        if (!empty($link)) {
            $this->tpl->setCurrentBlock("begin_link");
            $this->tpl->setVariable("LINK_TARGET", $link);
            $this->tpl->parseCurrentBlock();
            $this->tpl->touchBlock("end_link");
        }

        $this->tpl->setCurrentBlock("text");
        $this->tpl->setVariable("TEXT_CONTENT", $val);
        $this->tpl->parseCurrentBlock();
        $this->tpl->setCurrentBlock("table_cell");
        $this->tpl->parseCurrentBlock();
    }

    public function displayLocator()
    {
        $lng = $this->lng;

        if (empty($this->id)) {
            return;
        }

        if (!$this->tree->isInTree($this->id)) {
            return;
        }

        $this->tpl->addBlockFile("LOCATOR", "locator", "tpl.locator.html", "Services/Locator");

        $path = $this->tree->getPathFull($this->id);
        //print_r($path);
        $modifier = 1;

        return;
        $this->tpl->setVariable("TXT_LOCATOR", $this->lng->txt("locator"));
        $this->tpl->touchBlock("locator_separator");
        $this->tpl->touchBlock("locator_item");
        //$this->tpl->setCurrentBlock("locator_item");
        //$this->tpl->setVariable("ITEM", $this->lng->txt("personal_desktop"));
        //$this->tpl->setVariable("LINK_ITEM", $this->ctrl->getLinkTargetByClass("ilpersonaldesktopgui"));
        //$this->tpl->setVariable("LINK_TARGET","target=\"".
        //      ilFrameTargetInfo::_getFrame("MainContent")."\"");
        //$this->tpl->parseCurrentBlock();

        foreach ($path as $key => $row) {
            if ($key < count($path) - $modifier) {
                $this->tpl->touchBlock("locator_separator");
            }

            $this->tpl->setCurrentBlock("locator_item");
            $title = ($row["child"] == 1) ?
                $lng->txt("bookmarks") :
                $row["title"];
            $this->tpl->setVariable("ITEM", $title);
            $this->ctrl->setParameter($this, "bmf_id", $row["child"]);
            $this->tpl->setVariable(
                "LINK_ITEM",
                $this->ctrl->getLinkTarget($this)
            );
            $this->tpl->parseCurrentBlock();
        }

        $this->tpl->setCurrentBlock("locator");

        $this->tpl->parseCurrentBlock();
    }

    public function newForm($type)
    {
        if (!$type) {
            $type = $_POST["type"];
        }
        switch ($type) {
            case "bmf":
                $this->newFormBookmarkFolder();
                break;

            case "bm":
                $this->newFormBookmark();
                break;
        }
    }

    public function newFormBookmarkFolder()
    {
        if (!$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        $form = $this->initFormBookmarkFolder();
        $this->tpl->setVariable("ADM_CONTENT", $form->getHTML());
    }

    private function initFormBookmarkFolder($action = 'createBookmarkFolder')
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        $ilUser = $this->user;

        if (!$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        include_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
        $form = new ilPropertyFormGUI();
        $form->setTopAnchor("bookmark_top");

        $form->setTitle($lng->txt("bookmark_folder_new"));

        if ($action == 'updateBookmarkFolder') {
            $ilCtrl->setParameter($this, 'bmf_id', $this->id);
            $ilCtrl->setParameter($this, 'obj_id', $_GET["obj_id"]);
        }

        $hash = ($ilUser->prefs["screen_reader_optimization"])
            ? "bookmark_top"
            : "";

        $form->setFormAction($ilCtrl->getFormAction($this, $action, $hash));

        $ilCtrl->clearParameters($this);

        // title
        $prop = new ilTextInputGUI($lng->txt("title"), "title");
        $prop->setRequired(true);
        $form->addItem($prop);

        // buttons
        $form->addCommandButton($action, $lng->txt('save'));
        $form->addCommandButton('cancel', $lng->txt('cancel'));
        return $form;
    }

    public function editFormBookmarkFolder()
    {
        if (!$this->tree->isInTree($_GET["obj_id"])) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->setParameter($this, 'obj_id', '');
            $this->ctrl->redirect($this);
        }
        
        $bmf = new ilBookmarkFolder($_GET["obj_id"]);
        $form = $this->initFormBookmarkFolder('updateBookmarkFolder', $this->id);
        $form->setValuesByArray(
            array(
                "title" => $this->get_last("title", $bmf->getTitle()),
                "obj_id" => $_GET["obj_id"],
            )
        );
        $this->tpl->setVariable("ADM_CONTENT", $form->getHTML());
    }


    private function initFormBookmark($action = 'createBookmark')
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        $ilUser = $this->user;

        if (!$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        include_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
        $form = new ilPropertyFormGUI();
        $form->setTopAnchor("bookmark_top");

        $form->setTitle($lng->txt("bookmark_new"));

        if ($action == 'updateBookmark') {
            $ilCtrl->setParameter($this, 'bmf_id', $this->id);
            $ilCtrl->setParameter($this, 'obj_id', $_GET["obj_id"]);
        }

        $hash = ($ilUser->prefs["screen_reader_optimization"])
            ? "bookmark_top"
            : "";

        $form->setFormAction($ilCtrl->getFormAction($this, $action, $hash));
        $ilCtrl->clearParameters($this);
        // title
        $prop = new ilTextInputGUI($lng->txt("title"), "title");
        $prop->setValue($_GET['bm_title']);
        $prop->setRequired(true);
        $form->addItem($prop);

        // description
        $prop = new ilTextAreaInputGUI($lng->txt('description'), 'description');
        $form->addItem($prop);

        // target link
        $prop = new ilTextInputGUI($lng->txt('bookmark_target'), 'target');
        $prop->setValue($_GET['bm_link']);
        $prop->setRequired(true);
        $form->addItem($prop);

        // hidden redirect field
        if ($_GET['return_to']) {
            $prop = new ilHiddenInputGUI('return_to');
            $prop->setValue($_GET['return_to']);
            $form->addItem($prop);

            $prop = new ilHiddenInputGUI('return_to_url');
            if ($_GET['return_to_url']) {
                $prop->setValue($_GET['return_to_url']);
            } else {
                $prop->setValue($_GET['bm_link']);
            }
            $form->addItem($prop);
        }

        // buttons
        $form->addCommandButton($action, $lng->txt('save'));
        $form->addCommandButton('cancel', $lng->txt('cancel'));

        // keep imports?
        /*
        $this->tpl->setCurrentBlock('bkm_import');
        $this->tpl->setVariable("TXT_IMPORT_BKM", $this->lng->txt("bkm_import"));
        $this->tpl->setVariable("TXT_FILE", $this->lng->txt("file_add"));
        $this->tpl->setVariable("TXT_IMPORT", $this->lng->txt("import"));
        $this->tpl->parseCurrentBlock();
        //vd($_POST);
        */

        return $form;
    }

    private function initImportBookmarksForm()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;
        $ilUser = $this->user;

        if (!$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        include_once 'Services/Form/classes/class.ilPropertyFormGUI.php';
        $form = new ilPropertyFormGUI();
        $form->setFormAction($ilCtrl->getFormAction($this, "importFile")); // #16133
        $form->setTopAnchor("bookmark_top");
        $form->setTitle($lng->txt("bkm_import"));

        $fi = new ilFileInputGUI($lng->txt("file_add"), "bkmfile");
        $fi->setRequired(true);
        $form->addItem($fi);

        $form->addCommandButton("importFile", $lng->txt('import'));
        $form->addCommandButton('cancel', $lng->txt('cancel'));

        return $form;
    }

    public function newFormBookmark()
    {
        $form = $this->initFormBookmark();
        $html1 = $form->getHTML();
        $html2 = '';
        if (!$_REQUEST["bm_link"]) {
            $form2 = $this->initImportBookmarksForm();
            $html2 = "<br />" . $form2->getHTML();
        }
        $this->tpl->setVariable("ADM_CONTENT", $html1 . $html2);
    }


    public function get_last($a_var, $a_value)
    {
        return (!empty($_POST[$a_var])) ?
            ilUtil::prepareFormOutput(($_POST[$a_var]), true) :
            ilUtil::prepareFormOutput($a_value);
    }

    public function editFormBookmark()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;

        if (!$this->tree->isInTree($_GET["obj_id"])) {
            $this->ctrl->setParameter($this, 'obj_id', '');
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        $form = $this->initFormBookmark('updateBookmark');
        $bookmark = new ilBookmark($_GET["obj_id"]);
        $form->setValuesByArray(
            array(
                "title" => $bookmark->getTitle(),
                "target" => $bookmark->getTarget(),
                "description" => $bookmark->getDescription(),
                "obj_id" => $_GET["obj_id"],
            )
        );
        $this->tpl->setVariable("ADM_CONTENT", $form->getHTML());
    }


    public function createBookmarkFolder()
    {
        if (!$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        // check title
        if (empty($_POST["title"])) {
            ilUtil::sendFailure($this->lng->txt("please_enter_title"));
            $this->newFormBookmarkFolder();
        } else {
            // create bookmark folder
            $bmf = new ilBookmarkFolder();
            $bmf->setTitle(ilUtil::stripSlashes($_POST["title"]));
            $bmf->setParent($this->id);
            $bmf->create();

            ilUtil::sendSuccess($this->lng->txt("bkm_fold_created"), true);

            $ilCtrl = $this->ctrl;
            $ilCtrl->saveParameter($this, 'bmf_id');
            $ilCtrl->redirect($this, 'view');
        }
    }


    public function updateBookmarkFolder()
    {
        if (!$this->tree->isInTree($_GET["obj_id"])) {
            $this->ctrl->setParameter($this, 'obj_id', '');
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        // check title
        if (empty($_POST["title"])) {
            ilUtil::sendFailure($this->lng->txt("please_enter_title"));
            $this->editFormBookmarkFolder();
        } else {
            // update bookmark folder
            $bmf = new ilBookmarkFolder($_GET["obj_id"]);
            $bmf->setTitle(ilUtil::stripSlashes($_POST["title"]));
            $bmf->update();

            $ilCtrl = $this->ctrl;
            $ilCtrl->saveParameter($this, 'bmf_id');
            $ilCtrl->redirect($this, 'view');
        }
    }


    public function createBookmark()
    {
        $lng = $this->lng;
        $ilCtrl = $this->ctrl;

        if (!$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        // check title and target
        if (empty($_POST["title"])) {
            ilUtil::sendFailure($this->lng->txt("please_enter_title"));
            $this->newFormBookmark();
        } elseif (empty($_POST["target"])) {
            ilUtil::sendFailure($this->lng->txt("please_enter_target"));
            $this->newFormBookmark();
        } else {
            // create bookmark
            $bm = new ilBookmark();
            $bm->setTitle(ilUtil::stripSlashes($_POST["title"]));
            $bm->setDescription(ilUtil::stripSlashes($_POST["description"]));
            $bm->setTarget(ilUtil::stripSlashes($_POST["target"]));
            $bm->setParent($this->id);
            $bm->create();

            ilUtil::sendInfo($lng->txt('bookmark_added'), true);

            $ilCtrl->saveParameter($this, 'bmf_id');
            $ilCtrl->redirect($this, 'view');
        }
    }

    public function updateBookmark()
    {
        if (!$this->tree->isInTree($_GET["obj_id"])) {
            $this->ctrl->setParameter($this, 'obj_id', '');
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        // check title and target
        if (empty($_POST["title"])) {
            ilUtil::sendFailure($this->lng->txt("please_enter_title"));
            $this->editFormBookmark();
        } elseif (empty($_POST["target"])) {
            ilUtil::sendFailure($this->lng->txt("please_enter_target"));
            $this->editFormBookmark();
        } else {
            // update bookmark
            $bm = new ilBookmark($_GET["obj_id"]);
            $bm->setTitle(ilUtil::stripSlashes($_POST["title"]));
            $bm->setTarget(ilUtil::stripSlashes($_POST["target"]));
            $bm->setDescription(ilUtil::stripSlashes($_POST["description"]));
            $bm->update();

            $this->view();
        }
    }

    public function export($deliver = true)
    {
        $ilErr = $this->error;
        $ilUser = $this->user;

        $bm_ids = $_GET['bm_id'] ? array($_GET['bm_id']) : $_POST['bm_id'];
        if (!$bm_ids) {
            $ilErr->raiseError($this->lng->txt("no_checkbox"), $ilErr->MESSAGE);
        }
        $export_ids = array();
        foreach ($bm_ids as $id) {
            if ($this->tree->isInTree($id)) {
                //list($type, $obj_id) = explode(":", $id);
                //$export_ids[]=$obj_id;
                $export_ids[] = $id;
            }
        }

        require_once("./Services/Bookmarks/classes/class.ilBookmarkImportExport.php");
        $html_content = ilBookmarkImportExport::_exportBookmark(
            $export_ids,
            true,
            $this->lng->txt("bookmarks_of") . " " . $ilUser->getFullname()
        );

        if ($deliver) {
            ilUtil::deliverData($html_content, 'bookmarks.html', "application/save", $charset = "");
        } else {
            return $html_content;
        }
    }

    public function sendmail()
    {
        $ilUser = $this->user;
        include_once './Services/Mail/classes/class.ilFileDataMail.php';
        require_once "Services/Mail/classes/class.ilFormatMail.php";
        $mfile = new ilFileDataMail($ilUser->getId());
        $umail = new ilFormatMail($ilUser->getId());

        $html_content = $this->export(false);
        $tempfile = ilUtil::ilTempnam();
        $fp = fopen($tempfile, 'w');
        fwrite($fp, $html_content);
        fclose($fp);
        $filename = 'bookmarks.html';
        $mfile->copyAttachmentFile($tempfile, $filename);
        $umail->savePostData(
            $ilUser->getId(),
            array($filename),
            '',
            '',
            '',
            '',
            '',
            '',
            '',
            0
        );

        require_once 'Services/Mail/classes/class.ilMailFormCall.php';
        ilUtil::redirect(ilMailFormCall::getRedirectTarget($this, '', array(), array('type' => 'attach')));
    }

    public function delete()
    {
        $ilErr = $this->error;

        $bm_ids = $_GET['bm_id'] ? array($_GET['bm_id']) : $_POST['bm_id'];
        if (!$bm_ids) {
            $ilErr->raiseError($this->lng->txt("no_checkbox"), $ilErr->MESSAGE);
        }

        $this->ctrl->setParameter($this, "bmf_id", $this->id);

        // 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"), "cancel");
        $cgui->setConfirm($this->lng->txt("confirm"), "confirm");

        foreach ($bm_ids as $obj_id) {
            $type = ilBookmark::_getTypeOfId($obj_id);

            if (!$this->tree->isInTree($obj_id)) {
                continue;
            }

            switch ($type) {
                case "bmf":
                    $BookmarkFolder = new ilBookmarkFolder($obj_id);
                    $title = $BookmarkFolder->getTitle();
                    $target = "";
                    unset($BookmarkFolder);
                    break;

                case "bm":
                    $Bookmark = new ilBookmark($obj_id);
                    $title = $Bookmark->getTitle();
                    $target = $Bookmark->getTarget();
                    unset($Bookmark);
                    break;
            }

            $caption = ilUtil::getImageTagByType($type, $this->tpl->tplPath) .
                " " . $title;
            if ($target) {
                $caption .= " (" . ilUtil::shortenText($target, $this->textwidth, true) . ")";
            }

            $cgui->addItem("id[]", $obj_id, $caption);
        }

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

    public function cancel()
    {
        $this->view();
    }

    public function confirm()
    {
        $ilErr = $this->error;

        // AT LEAST ONE OBJECT HAS TO BE CHOSEN.
        if (!$_POST["id"]) {
            $ilErr->raiseError($this->lng->txt("no_checkbox"), $ilErr->MESSAGE);
        }

        // FOR ALL SELECTED OBJECTS
        foreach ($_POST["id"] as $id) {
            $type = ilBookmark::_getTypeOfId($id);

            // get node data and subtree nodes
            if ($this->tree->isInTree($id)) {
                $node_data = $this->tree->getNodeData($id);
                $subtree_nodes = $this->tree->getSubTree($node_data);
            } else {
                continue;
            }

            // delete tree
            $this->tree->deleteTree($node_data);

            // delete objects of subtree nodes
            foreach ($subtree_nodes as $node) {
                switch ($node["type"]) {
                    case "bmf":
                        $BookmarkFolder = new ilBookmarkFolder($node["obj_id"]);
                        $BookmarkFolder->delete();
                        break;

                    case "bm":
                        $Bookmark = new ilBookmark($node["obj_id"]);
                        $Bookmark->delete();
                        break;
                }
            }
        }

        // Feedback
        ilUtil::sendSuccess($this->lng->txt("info_deleted"), true);

        $this->view();
    }


    public function showPossibleSubObjects()
    {
        $actions = array(
            "delete" => $this->lng->txt("delete"),
            "export" => $this->lng->txt("export"),
            "sendmail" => $this->lng->txt("bkm_sendmail"),
        );

        $subobj = array("bm", "bmf");

        if (is_array($subobj)) {
            //build form
            $opts = ilUtil::formSelect("", "type", $subobj);

            $this->tpl->setCurrentBlock("add_object");
            $this->tpl->setVariable("COLUMN_COUNTS", 7);
            $this->tpl->setVariable("SELECT_OBJTYPE", $opts);
            $this->tpl->setVariable("BTN_NAME", "newForm");
            $this->tpl->setVariable("TXT_ADD", $this->lng->txt("add"));
            $this->tpl->parseCurrentBlock();
        }

        $this->tpl->setVariable("TPLPATH", $this->tpl->tplPath);

        $this->tpl->setCurrentBlock("tbl_action_select");
        $this->tpl->setVariable("SELECT_ACTION", ilUtil::formSelect($_SESSION["error_post_vars"]['action'], "action", $actions, false, true));
        $this->tpl->setVariable("BTN_NAME", "executeAction");
        $this->tpl->setVariable("BTN_VALUE", $this->lng->txt("execute"));

        /*
        $this->tpl->setVariable("BTN_NAME","delete");
        $this->tpl->setVariable("BTN_VALUE",$this->lng->txt("delete"));
        $this->tpl->parseCurrentBlock();

        $this->tpl->setVariable("BTN_NAME","export");
        $this->tpl->setVariable("BTN_VALUE",$this->lng->txt("export"));
        $this->tpl->parseCurrentBlock();
        */
        $this->tpl->parseCurrentBlock();
    }

    public function getHTML()
    {
        include_once("./Services/Bookmarks/classes/class.ilBookmarkBlockGUI.php");
        $bookmark_block_gui = new ilBookmarkBlockGUI("ilpersonaldesktopgui", "show");

        return $bookmark_block_gui->getHTML();
    }

    public function importFile()
    {
        if (!$this->tree->isInTree($this->id)) {
            $this->ctrl->setParameter($this, 'bmf_id', '');
            $this->ctrl->redirect($this);
        }

        if ($_FILES["bkmfile"]["error"] > UPLOAD_ERR_OK) {
            ilUtil::sendFailure($this->lng->txt("import_file_not_valid"));
            $this->newFormBookmark();
            return;
        }
        require_once("./Services/Bookmarks/classes/class.ilBookmarkImportExport.php");
        $objects = ilBookmarkImportExport::_parseFile($_FILES["bkmfile"]['tmp_name']);
        if ($objects === false) {
            ilUtil::sendFailure($this->lng->txt("import_file_not_valid"));
            $this->newFormBookmark();
            return;
        }
        // holds the number of created objects
        $num_create = array('bm' => 0, 'bmf' => 0);
        $this->__importBookmarks($objects, $num_create, $this->id, 0);

        ilUtil::sendSuccess(sprintf(
            $this->lng->txt("bkm_import_ok"),
            $num_create['bm'],
            $num_create['bmf']
        ));
        $this->view();
    }

    public function __importBookmarks(&$objects, &$num_create, $folder_id, $start_key = 0)
    {
        if (is_array($objects[$start_key])) {
            foreach ($objects[$start_key] as $obj_key => $object) {
                switch ($object['type']) {
                    case 'bm':
                        if (!$object["title"]) {
                            continue 2;
                        }
                        if (!$object["target"]) {
                            continue 2;
                        }
                        $bm = new ilBookmark();
                        $bm->setTitle($object["title"]);
                        $bm->setDescription($object["description"]);
                        $bm->setTarget($object["target"]);
                        $bm->setParent($folder_id);
                        $bm->create();
                        $num_create['bm']++;
                        break;
                    case 'bmf':
                        if (!$object["title"]) {
                            continue 2;
                        }
                        $bmf = new ilBookmarkFolder();
                        $bmf->setTitle($object["title"]);
                        $bmf->setParent($folder_id);
                        $bmf->create();
                        $num_create['bmf']++;
                        if (is_array($objects[$obj_key])) {
                            $this->__importBookmarks(
                                $objects,
                                $num_create,
                                $bmf->getId(),
                                $obj_key
                            );
                        }
                        break;
                }
            }
        }
    }

    public function move()
    {
        $ilUser = $this->user;
        $ilTabs = $this->tabs;
        $tpl = $this->tpl;

        $bm_ids = $_REQUEST['bm_id'];
        if (!$bm_ids && $_GET["bm_id_tgt"] == "") {
            ilUtil::sendFailure($this->lng->txt("no_checkbox"));
            return $this->view();
        }

        $ilTabs->setBackTarget($this->lng->txt("back"), $this->ctrl->getLinkTarget($this));

        $this->ctrl->setParameter($this, "bm_id_tgt", $_GET["bm_id_tgt"] ?  $_GET["bm_id_tgt"] : implode(";", $bm_ids));
        ilUtil::sendInfo($this->lng->txt("bookmark_select_target"));
        include_once("./Services/Bookmarks/classes/class.ilBookmarkMoveExplorerGUI.php");
        $exp = new ilBookmarkMoveExplorerGUI($this, "move");
        if (!$exp->handleCommand()) {
            $this->mode = "flat";
            $this->tpl->setContent($exp->getHTML());
        }
    }

    public function confirmedMove()
    {
        $ilUser = $this->user;

        $tgt = (int) $_REQUEST["bmfmv_id"];
        $bm_ids = explode(";", $_REQUEST['bm_id_tgt']);
        if (!$bm_ids || !$tgt) {
            ilUtil::sendFailure($this->lng->txt("no_checkbox"));
            return $this->view();
        }

        $tree = new ilTree($ilUser->getId());
        $tree->setTableNames('bookmark_tree', 'bookmark_data');

        $tgt_node = $tree->getNodeData($tgt);

        // sanity check
        foreach ($bm_ids as $node_id) {
            if ($tree->isGrandChild($node_id, $tgt)) {
                ilUtil::sendFailure($this->lng->txt("error"), true);
                $this->ctrl->redirect($this, "view");
            }

            $node = $tree->getNodeData($node_id);

            // already at correct position
            if ($node["parent"] == $tgt) {
                continue;
            }

            $tree->moveTree($node_id, $tgt);
        }

        ilUtil::sendSuccess($this->lng->txt("bookmark_moved_ok"), true);
        $this->ctrl->setParameter($this, "bmf_id", $tgt);
        $this->ctrl->redirect($this, "view");
    }
}