class.ilMediaPoolExplorerGUI.php

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

include_once("./Services/UIComponent/Explorer2/classes/class.ilTreeExplorerGUI.php");

class ilMediaPoolExplorerGUI extends ilTreeExplorerGUI
{
    protected $user;

    public function __construct($a_parent_obj, $a_parent_cmd, $a_media_pool)
    {
        global $DIC;

        $this->user = $DIC->user();
        $this->lng = $DIC->language();
        $this->ctrl = $DIC->ctrl();
        $ilUser = $DIC->user();
        
        $this->media_pool = $a_media_pool;
        parent::__construct("mep_exp", $a_parent_obj, $a_parent_cmd, $a_media_pool->getTree());
        
        $this->setTypeWhiteList(array("dummy", "fold"));
        $this->setSkipRootNode(false);
        $this->setAjax(true);
        $this->setOrderField("title");

        $this->setNodeOpen($this->tree->readRootId());
    }

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

        if ($a_node["child"] == $this->getNodeId($this->getRootNode())) {
            return $this->media_pool->getTitle();
        }
                
        return $a_node["title"];
    }
    
    public function getNodeIcon($a_node)
    {
        if ($a_node["child"] == $this->getNodeId($this->getRootNode())) {
            $icon = ilUtil::getImagePath("icon_mep.svg");
        } else {
            $icon = ilUtil::getImagePath("icon_" . $a_node["type"] . ".svg");
        }
        
        return $icon;
    }

    public function isNodeHighlighted($a_node)
    {
        if ($a_node["child"] == $_GET["mepitem_id"] ||
            ($_GET["mepitem_id"] == "" && $a_node["child"] == $this->getNodeId($this->getRootNode()))) {
            return true;
        }
        return false;
    }
    
    public function getNodeHref($a_node)
    {
        $ilCtrl = $this->ctrl;

        $ilCtrl->setParameterByClass("ilobjmediapoolgui", "ref_id", (int) $_GET["ref_id"]);
        $ilCtrl->setParameterByClass("ilobjmediapoolgui", "mepitem_id", $a_node["child"]);
        $ret = $ilCtrl->getLinkTargetByClass("ilobjmediapoolgui", "listMedia", "", false, false);
        $ilCtrl->setParameterByClass("ilobjmediapoolgui", "mepitem_id", $_GET["mepitem_id"]);
        return $ret;
    }

    protected function getNodeStateToggleCmdClasses($record) : array
    {
        return [
            'ilRepositoryGUI',
            'ilObjMediaPoolGUI',
        ];
    }
}