content/classes/class.ilLMPageObjectGUI.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/

require_once("./content/classes/class.ilLMObjectGUI.php");
require_once("./content/classes/class.ilLMPageObject.php");
require_once("./content/classes/Pages/class.ilPageObjectGUI.php");
//require_once ("content/classes/class.ilEditClipboardGUI.php");
require_once ("content/classes/class.ilInternalLinkGUI.php");

class ilLMPageObjectGUI extends ilLMObjectGUI
{
        var $obj;

        function ilLMPageObjectGUI(&$a_content_obj)
        {
                global $ilias, $tpl, $lng;

                parent::ilLMObjectGUI($a_content_obj);

        }


        function setLMPageObject(&$a_pg_obj)
        {
                $this->obj =& $a_pg_obj;
                $this->obj->setLMId($this->content_object->getId());
                $this->actions = $this->objDefinition->getActions($this->obj->getType());
        }

        function &executeCommand()
        {
#echo "<br>:cmd:".$this->ctrl->getCmd().":cmdClass:".$this->ctrl->getCmdClass().":"; flush();
                $next_class = $this->ctrl->getNextClass($this);
                $cmd = $this->ctrl->getCmd();

                switch($next_class)
                {
                        case 'ilmdeditorgui':

                                $this->setTabs();
                                include_once 'Services/MetaData/classes/class.ilMDEditorGUI.php';

                                $md_gui =& new ilMDEditorGUI($this->content_object->getID(),
                                        $this->obj->getId(), $this->obj->getType());
                                $md_gui->addObserver($this->obj,'MDUpdateListener','General');

                                $this->ctrl->forwardCommand($md_gui);
                                break;

                        case "ilpageobjectgui":

                                // Determine whether the view of a learning resource should
                                // be shown in the frameset of ilias, or in a separate window.
                                //$showViewInFrameset = $this->ilias->ini->readVariable("layout","view_target") == "frame";
                                $showViewInFrameset = true;

                                $this->ctrl->setReturn($this, "view");
                                //require_once("content/classes/class.ilContObjLocatorGUI.php");
                                //$contObjLocator =& new ilContObjLocatorGUI($this->content_object->getTree());
                                //$contObjLocator->setObject($this->obj);
                                //$contObjLocator->setContentObject($this->content_object);
                                $page_object =& $this->obj->getPageObject();
                                $page_object->buildDom();
                                $page_object->addUpdateListener($this, "updateHistory");
                                $int_links = $page_object->getInternalLinks();
                                $link_xml = $this->getLinkXML($int_links);
                                $page_gui =& new ilPageObjectGUI($page_object);

                                // set page view link
                                if ($showViewInFrameset)
                                {
                                        $view_frame = ilFrameTargetInfo::_getFrame("MainContent");
                                }
                                else
                                {
                                        $view_frame = "ilContObj".$this->content_object->getID();
                                }
                                $page_gui->setViewPageLink(ILIAS_HTTP_PATH."/goto.php?target=pg_".$this->obj->getId(),
                                        $view_frame);

                                $page_gui->setIntLinkHelpDefault("StructureObject", $_GET["ref_id"]);
                                $page_gui->setTemplateTargetVar("ADM_CONTENT");
                                $page_gui->setLinkXML($link_xml);
                                $page_gui->enableChangeComments($this->content_object->isActiveHistoryUserComments());
                                $page_gui->setFileDownloadLink("ilias.php?cmd=downloadFile&ref_id=".$_GET["ref_id"]."&baseClass=ilLMPresentationGUI");
                                $page_gui->setFullscreenLink("ilias.php?cmd=fullscreen&ref_id=".$_GET["ref_id"]."&baseClass=ilLMPresentationGUI");
                                $page_gui->setLinkParams("ref_id=".$this->content_object->getRefId());
                                $page_gui->setSourcecodeDownloadScript("ilias.php?ref_id=".$_GET["ref_id"]."&baseClass=ilLMPresentationGUI");
                                $page_gui->setPresentationTitle(
                                        ilLMPageObject::_getPresentationTitle($this->obj->getId(),
                                        $this->content_object->getPageHeader(), $this->content_object->isActiveNumbering()));
                                $page_gui->setLocator($contObjLocator);
                                $page_gui->setHeader($this->lng->txt("page").": ".$this->obj->getTitle());
                                $page_gui->setEnabledActivation(true);
                                $page_gui->setActivationListener($this, "activatePage");
                                $page_gui->setActivated($this->obj->getActive());
                                $ret =& $this->ctrl->forwardCommand($page_gui);
                                //$ret =& $page_gui->executeCommand();
                                break;

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


        /*
        * display content of page (edit view)
        */
        function view()
        {
//echo "<br>umschuss";
                $this->ctrl->setCmdClass("ilpageobjectgui");
                $this->ctrl->setCmd("view");
                $this->executeCommand();
                $this->setTabs();
        }

        /*
        * display content of page (edit view)
        */
        function preview()
        {
                $this->ctrl->setCmdClass("ilpageobjectgui");
                $this->ctrl->setCmd("preview");
                $this->executeCommand();
                $this->setTabs();
        }

        function save()
        {

                $this->obj =& new ilLMPageObject($this->content_object);
                $this->obj->setType("pg");
                $this->obj->setTitle(ilUtil::stripSlashes($_POST["Fobject"]["title"]));
                $this->obj->setDescription(ilUtil::stripSlashes($_POST["Fobject"]["desc"]));
                $this->obj->setLMId($this->content_object->getId());
                $this->obj->create();

                // obj_id is empty, if page is created from "all pages" screen
                // -> a free page is created (not in the tree)
//echo "<br>savePage:".$_GET["obj_id"].":";
                if ($_GET["obj_id"] != 0)
                {
                        $this->putInTree();

                        // check the tree
                        $this->checkTree();

                        ilUtil::redirect($this->ctrl->getLinkTargetByClass("ilStructureObjectGUI",
                                "view", "", true));
                }
        }

        function cancel()
        {
                sendInfo($this->lng->txt("msg_cancel"), true);
                if ($_GET["obj_id"] != 0)
                {
                        ilUtil::redirect($this->ctrl->getLinkTargetByClass("ilStructureObjectGUI",
                                "view", "", true));
                }
                //$this->ctrl->returnToParent($this);
        }

        function getLinkXML($a_int_links)
        {
                if ($a_layoutframes == "")
                {
                        $a_layoutframes = array();
                }
                $link_info = "<IntLinkInfos>";
                foreach ($a_int_links as $int_link)
                {
                        $target = $int_link["Target"];
                        if (substr($target, 0, 4) == "il__")
                        {
                                $target_arr = explode("_", $target);
                                $target_id = $target_arr[count($target_arr) - 1];
                                $type = $int_link["Type"];
                                $targetframe = ($int_link["TargetFrame"] != "")
                                        ? $int_link["TargetFrame"]
                                        : "None";
                                        
                                switch($type)
                                {
                                        case "PageObject":
                                        case "StructureObject":
                                                $lm_id = ilLMObject::_lookupContObjID($target_id);
                                                $cont_obj =& $this->content_object;
                                                if ($lm_id == $cont_obj->getId())
                                                {
                                                        $ltarget = "";
                                                        if ($type == "PageObject")
                                                        {
                                                                $this->ctrl->setParameter($this, "obj_id", $target_id);
                                                                $href = $this->ctrl->getLinkTargetByClass(get_class($this), "view", "", true);
                                                        }
                                                        else
                                                        {
                                                                $this->ctrl->setParameterByClass("ilstructureobjectgui", "obj_id", $target_id);
                                                                $href = $this->ctrl->getLinkTargetByClass("ilstructureobjectgui", "view", "", true);
                                                        }
                                                        $href = str_replace("&", "&amp;", $href);
                                                        $this->ctrl->setParameter($this, "obj_id", $_GET["obj_id"]);
                                                }
                                                else
                                                {
                                                        if ($type == "PageObject")
                                                        {
                                                                $href = "../goto.php?target=pg_".$target_id;
                                                        }
                                                        else
                                                        {
                                                                $href = "../goto.php?target=st_".$target_id;
                                                        }
                                                        $ltarget = "ilContObj".$lm_id;
                                                }
                                                break;

                                        case "GlossaryItem":
                                                $ltarget = $nframe = "_blank";
                                                $href = "ilias.php?cmdClass=illmpresentationgui&amp;baseClass=ilLMPresentationGUI&amp;".
                                                        "obj_type=$type&amp;cmd=glossary&amp;ref_id=".$_GET["ref_id"].
                                                        "&amp;obj_id=".$target_id."&amp;frame=$nframe";
                                                //$href = "content/lm_presentation.php?obj_type=$type&amp;cmd=glossary&amp;ref_id=".$_GET["ref_id"].
                                                //      "&amp;obj_id=".$target_id."&amp;frame=$nframe";
                                                break;

                                        case "MediaObject":
                                                $ltarget = $nframe = "_blank";
                                                $href = "ilias.php?cmdClass=illmpresentationgui&amp;baseClass=ilLMPresentationGUI&amp;obj_type=$type&amp;cmd=media&amp;ref_id=".$_GET["ref_id"].
                                                        "&amp;mob_id=".$target_id."&amp;frame=$nframe";
                                                //$href = "content/lm_presentation.php?obj_type=$type&amp;cmd=media&amp;ref_id=".$_GET["ref_id"].
                                                //      "&amp;mob_id=".$target_id."&amp;frame=$nframe";
                                                break;
                                                
                                        case "RepositoryItem":
                                                $obj_type = ilObject::_lookupType($target_id, true);
                                                $obj_id = ilObject::_lookupObjId($target_id);
                                                $href = "./goto.php?target=".$obj_type."_".$target_id;
                                                $t_frame = ilFrameTargetInfo::_getFrame("MainContent", $obj_type);
                                                $ltarget = $t_frame;
                                                break;
                                }
                                $link_info.="<IntLinkInfo Target=\"$target\" Type=\"$type\" ".
                                        "TargetFrame=\"$targetframe\" LinkHref=\"$href\" LinkTarget=\"$ltarget\" />";
                        }
                }
                $link_info.= "</IntLinkInfos>";
//echo ":".htmlentities($link_info).":";
                return $link_info;
        }
        
        
        function history()
        {
                $this->setTabs();
                
                require_once("classes/class.ilHistoryGUI.php");
                $hist_gui =& new ilHistoryGUI($this->obj->getId() ,
                        $this->content_object->getType().":pg");
                $hist_html = $hist_gui->getHistoryTable(
                        $this->ctrl->getParameterArray($this, "history"),
                        $this->content_object->isActiveHistoryUserComments()
                        );
                
                $this->tpl->setVariable("ADM_CONTENT", $hist_html);
        }

        function updateHistory()
        {
                require_once("classes/class.ilHistory.php");
                ilHistory::_createEntry($this->obj->getId(), "update",
                        "", $this->content_object->getType().":pg",
                        "", true);
        }


        function setTabs()
        {
                global $ilTabs;
//echo "setTabs";
                // catch feedback message
                #include_once("classes/class.ilTabsGUI.php");
                #$tabs_gui =& new ilTabsGUI();
                $this->getTabs($ilTabs);
                
                $this->tpl->setCurrentBlock("header_image");
                $this->tpl->setVariable("IMG_HEADER", ilUtil::getImagePath("icon_pg_b.gif"));
                $this->tpl->parseCurrentBlock();
                $this->tpl->setCurrentBlock("content");

                #$this->tpl->setVariable("TABS", $tabs_gui->getHTML());
                $this->tpl->setVariable("HEADER",
                        $this->lng->txt($this->obj->getType()).": ".$this->obj->getTitle());
        }

        function getTabs(&$tabs_gui)
        {
                // back to upper context
                $tabs_gui->addTarget("edit", $this->ctrl->getLinkTarget($this, "view")
                        , array("", "view"), "ilpageobjectgui");

                $tabs_gui->addTarget("cont_preview", $this->ctrl->getLinkTarget($this, "preview")
                        , "preview", "ilpageobjectgui");
                        
                //$tabs_gui->addTarget("properties", $this->ctrl->getLinkTarget($this, "properties")
                //      , "properties", get_class($this));

                $tabs_gui->addTarget("meta_data",
                         $this->ctrl->getLinkTargetByClass('ilmdeditorgui',''),
                         "", "ilmdeditorgui");

                $tabs_gui->addTarget("history", $this->ctrl->getLinkTarget($this, "history")
                        , "history", get_class($this));

                $tabs = $this->ctrl->getTabs();
                foreach ($tabs as $tab)
                {
                        $tabs_gui->addTarget($tab["lang_var"], $tab["link"]
                                , $tab["cmd"], $tab["class"]);
                }

                //$tabs_gui->addTarget("clipboard", $this->ctrl->getLinkTargetByClass("ilEditClipboardGUI", "view")
                //      , "view", "ilEditClipboardGUI");

        }

        function _goto($a_target, $a_target_ref_id = "")
        {
                global $rbacsystem, $ilErr, $lng, $ilAccess;

                // determine learning object
                $lm_id = ilLMObject::_lookupContObjID($a_target);

                // get all references
                $ref_ids = ilObject::_getAllReferences($lm_id);

                // always try passed ref id first
                if (in_array($a_target_ref_id, $ref_ids))
                {
                        $ref_ids = array_merge(array($a_target_ref_id), $ref_ids);
                }

                // check read permissions
                foreach ($ref_ids as $ref_id)
                {
                        // check read permissions
                        if ($ilAccess->checkAccess("read", "", $ref_id))
                        {
                                // don't redirect anymore, just set parameters
                                // (goto.php includes  "ilias.php")
                                $_GET["baseClass"] = "ilLMPresentationGUI";
                                $_GET["obj_id"] = $a_target;
                                $_GET["ref_id"] = $ref_id;
                                include_once("ilias.php");
                                exit;
                        }
                }

                if ($ilAccess->checkAccess("read", "", ROOT_FOLDER_ID))
                {
                        $_GET["cmd"] = "frameset";
                        $_GET["target"] = "";
                        $_GET["ref_id"] = ROOT_FOLDER_ID;
                        sendInfo(sprintf($lng->txt("msg_no_perm_read_item"),
                                ilObject::_lookupTitle($lm_id)), true);
                        include("repository.php");
                        exit;
                }

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

}
?>