class.ilNavigationHistoryGUI.php

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<?php

/* Copyright (c) 1998-2010 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilNavigationHistoryGUI
{

        private $items;

        public function __construct()
        {
        }

        function getHTML()
        {
                global $ilNavigationHistory, $lng;
                
                include_once("./Services/UIComponent/AdvancedSelectionList/classes/class.ilAdvancedSelectionListGUI.php");
                $selection = new ilAdvancedSelectionListGUI();
                $selection->setFormSelectMode("url_ref_id", "ilNavHistorySelect", true,
                        "goto.php?target=navi_request", "ilNavHistory", "ilNavHistoryForm",
                        "_top", $lng->txt("go"), "ilNavHistorySubmit");
                $selection->setListTitle($lng->txt("last_visited"));
                $selection->setId("lastvisited");
                $selection->setSelectionHeaderClass("MMInactive");
                $selection->setHeaderIcon(ilAdvancedSelectionListGUI::NO_ICON);
                $selection->setItemLinkClass("small");
                $selection->setUseImages(true);
                include_once("./Services/Accessibility/classes/class.ilAccessKey.php");
                $selection->setAccessKey(ilAccessKey::LAST_VISITED);
                
                $items = $ilNavigationHistory->getItems();
                //$sel_arr = array(0 => "-- ".$lng->txt("last_visited")." --");
                reset($items);
                $cnt = 0;
                foreach($items as $item)
                {
                        if ($cnt++ > 20) break;
                        
                        if (!isset($item["ref_id"]) || !isset($_GET["ref_id"]) || $item["ref_id"] != $_GET["ref_id"])                   // do not list current item
                        {
                                $obj_id = ilObject::_lookupObjId($item["ref_id"]);
                                $selection->addItem($item["title"], $item["ref_id"], $item["link"],
                                        ilObject::_getIcon($obj_id, "tiny", $item["type"]),
                                        $lng->txt("obj_".$item["type"]), "_top");
                        }
                }
                $html = $selection->getHTML();
                
                if ($html == "")
                {
                        $selection->addItem($lng->txt("no_items"), "", "#",
                                "", "", "_top");
                        $selection->setUseImages(false);
                        $html = $selection->getHTML();
                }
                return $html;
        }
        
        public function getHTMLOld()
        {
                global $ilNavigationHistory, $lng;
                
                $items = $ilNavigationHistory->getItems();

                // do not show list, if no item is in list
                if (count($items) == 0)
                {
                        return "";
                }
                
                // do not show list, if only current item is in list
                $item = current($items);
                if (count($items) == 1 && $item["ref_id"] == $_GET["ref_id"])
                {
                        return "";
                }
                
                $GLOBALS["tpl"]->addJavascript("./Services/Navigation/js/ServiceNavigation.js");

                $tpl = new ilTemplate("tpl.navigation_history.html", true, true,
                        "Services/Navigation");
                        
                $sel_arr = array(0 => "-- ".$lng->txt("last_visited")." --");
                reset($items);

                $cnt = 0;
                foreach($items as $item)
                {
                        if ($cnt++ > 20) break;
                        
                        if ($item["ref_id"] != $_GET["ref_id"])                 // do not list current item
                        {
                                $sel_arr[$item["ref_id"]] = $item["title"];
                                $this->css_row = ($this->css_row != "tblrow1_mo")
                                        ? "tblrow1_mo"
                                        : "tblrow2_mo";
                                $tpl->setCurrentBlock("item");
                                $tpl->setVariable("HREF_ITEM", $item["link"]);
                                $tpl->setVariable("CSS_ROW", $this->css_row);
                                $tpl->setVariable("TXT_ITEM", $item["title"]);
                                
                                $obj_id = ilObject::_lookupObjId($item["ref_id"]);
                                $tpl->setVariable("IMG_ITEM",
                                        ilObject::_getIcon($obj_id, "tiny", $item["type"]));
                                $tpl->setVariable("ALT_ITEM", $lng->txt("obj_".$item["type"]));
                                $tpl->parseCurrentBlock();
                        }
                }
                $select = ilUtil::formSelect("", "url_ref_id", $sel_arr, false, true, "0", "ilEditSelect");
                $tpl->setVariable("TXT_LAST_VISITED", $lng->txt("last_visited"));
                $tpl->setVariable("IMG_DOWN", ilUtil::getImagePath("mm_down_arrow.gif"));
                $tpl->setVariable("NAVI_SELECT", $select);
                $tpl->setVariable("TXT_GO", $lng->txt("go"));
                $tpl->setVariable("ACTION", "goto.php?target=navi_request&ref_id=".$_GET["ref_id"]);
                
                return $tpl->get();
        }
        
        function handleNavigationRequest()
        {
                global $ilNavigationHistory;
                
                if ($_GET["target"] == "navi_request")
                {
                        $items = $ilNavigationHistory->getItems();
                        foreach($items as $item)
                        {
                                if ($item["ref_id"] == $_POST["url_ref_id"])
                                {
                                        ilUtil::redirect($item["link"]);
                                }
                        }
                        reset($items);
                        $item = current($items);
                        if ($_POST["url_ref_id"] == 0 && $item["ref_id"] == $_GET["ref_id"])
                        {
                                $item = next($items);           // omit current item
                        }
                        if ($_POST["url_ref_id"] == 0 && $item["link"] != "")
                        {
                                ilUtil::redirect($item["link"]);
                        }
                        ilUtil::redirect("repository.php?cmd=frameset&getlast=true");
                }
        }
        
}
?>