class.ilOrgUnitExplorerGUI.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilOrgUnitExplorerGUI extends ilTreeExplorerGUI
{

    protected $stay_with_command = array( "", "render", "view", "infoScreen", "showStaff", "performPaste", "cut" );
    protected $tree = null;


    public function __construct($a_expl_id, $a_parent_obj, $a_parent_cmd, $a_tree)
    {
        parent::__construct($a_expl_id, $a_parent_obj, $a_parent_cmd, $a_tree);
        $this->setAjax(true);
        $this->setTypeWhiteList(array( "orgu" ));
        $this->tree->initLangCode();
    }


    public function getNodeContent($node)
    {
        global $DIC;
        if ($node["title"] == "__OrgUnitAdministration") {
            $node["title"] = $DIC->language()->txt("objs_orgu");
        }
        if ($node["child"] == $_GET["ref_id"]) {
            return "<span class='ilExp2NodeContent ilHighlighted'>" . $node["title"] . "</span>";
        } else {
            return $node["title"];
        }
    }


    public function getRootNode()
    {
        return $this->getTree()->getNodeData(ilObjOrgUnit::getRootOrgRefId());
    }


    public function getNodeIcon($a_node)
    {
        global $DIC;
        $ilias = $DIC['ilias'];
        if ($ilias->getSetting('custom_icons')) {
            $icons_cache = ilObjOrgUnit::getIconsCache();
            $obj_id = ilObject::_lookupObjId($a_node["child"]);
            if (isset($icons_cache[$obj_id])) {
                return $icons_cache[$obj_id];
            }
        }

        return ilObject::_getIcon($obj_id, "tiny", $a_node["type"]);
    }


    public function getNodeHref($node)
    {
        global $DIC;

        if ($this->select_postvar) {
            return "#";
        }

        if ($DIC->ctrl()->getCmd() == "performPaste") {
            $DIC->ctrl()->setParameterByClass("ilObjOrgUnitGUI", "target_node", $node["child"]);
        }
        $array = $DIC->ctrl()->getParameterArrayByClass("ilObjOrgUnitGUI");
        $temp = $array['ref_id'];

        $DIC->ctrl()->setParameterByClass("ilObjOrgUnitGUI", "ref_id", $node["child"]);
        $DIC->ctrl()->setParameterByClass("ilObjPluginDispatchGUI", "ref_id", $node["child"]);

        $link_target = ($node['type'] == "orgu") ? $this->getLinkTarget() : $this->getPluginLinkTarget();
        $DIC->ctrl()->setParameterByClass("ilObjOrgUnitGUI", 'ref_id', $temp);
        return $link_target;
    }


    protected function getLinkTarget()
    {
        global $DIC;
        if ($DIC->ctrl()->getCmdClass() == "ilobjorgunitgui" and in_array($DIC->ctrl()->getCmd(), $this->stay_with_command)) {
            return $DIC->ctrl()->getLinkTargetByClass(array( "ilAdministrationGUI", $DIC->ctrl()->getCmdClass() ), $DIC->ctrl()->getCmd());
        } else {
            return $DIC->ctrl()->getLinkTargetByClass(array( "ilAdministrationGUI", "ilobjorgunitgui" ), "view");
        }
    }


    protected function getPluginLinkTarget()
    {
        global $DIC;
        return $DIC->ctrl()->getLinkTargetByClass("ilObjPluginDispatchGUI", "forward");
    }


    public function getChildsOfNode($a_parent_node_id)
    {
        global $DIC;
        $ilAccess = $DIC->access();

        $wl = $this->getTypeWhiteList();
        if (is_array($wl) && count($wl) > 0) {
            $childs = $this->tree->getChildsByTypeFilter($a_parent_node_id, $wl, $this->getOrderField());
        } else {
            $childs = $this->tree->getChilds($a_parent_node_id, $this->getOrderField());
        }

        // apply black list filter
        $bl = $this->getTypeBlackList();
        if (is_array($bl) && count($bl) > 0) {
            $bl_childs = array();
            foreach ($childs as $k => $c) {
                if (!in_array($c["type"], $bl)) {
                    $bl_childs[$k] = $c;
                }
            }

            return $bl_childs;
        }

        //Check Access
        foreach ($childs as $key => $child) {
            if (!$ilAccess->checkAccess('visible', '', $child['ref_id'])) {
                unset($childs[$key]);
            }
        }

        return $childs;
    }


    public function sortChilds($a_childs, $a_parent_node_id)
    {
        usort($a_childs, array( __CLASS__, "sortbyTitle" ));

        return $a_childs;
    }


    public function sortbyTitle($a, $b)
    {
        return strcmp($a["title"], $b["title"]);
    }


    public function isNodeClickable($a_node)
    {
        global $DIC;
        $ilAccess = $DIC->access();

        if ($ilAccess->checkAccess('read', '', $a_node['ref_id'])) {
            return true;
        }

        return false;
    }

    public function isNodeSelectable($a_node)
    {
        $current_node = filter_input(INPUT_GET, 'item_ref_id');
        if ($a_node['child'] == $current_node || $this->tree->isGrandChild($current_node, $a_node['child'])) {
            return false;
        }
        return true;
    }
}