classes/class.ilObjectGUIAdapter.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 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. |
        +-----------------------------------------------------------------------------+
*/


class ilObjectGUIAdapter
{
        var $gui_obj;
        var $ilias;
        var $tpl;
        var $lng;
        var $objDefinition;

        var $cmd;
        var $id;
        var $call_by_reference;

        function ilObjectGUIAdapter($a_id,$a_call_by_reference,$a_prepare_output = true,$a_cmd = '')
        {
                global $ilias,$tpl,$objDefinition,$lng;


                $this->ilias =& $ilias;
                $this->tpl =& $tpl;
                $this->lng =& $lng;
                $this->objDefinition =& $objDefinition;

                $this->setCommand($a_cmd);
                $this->id = $a_id;
                $this->call_by_reference = $a_call_by_reference;

                $this->__initGUIObject($a_call_by_reference,$a_prepare_output);
        }
        // SET/GET
        function getId()
        {
                return $this->id;
        }
        function setCommand($a_cmd)
        {
                if($a_cmd == "gateway" || $a_cmd == "post")
                {
                        @$this->cmd = key($_POST["cmd"]);
                }
                else
                {
                        $this->cmd = $a_cmd;
                }
        }
        function getCommand()
        {
                return $this->cmd;
        }
        function getType()
        {
                return $this->type;
        }
        function setType($a_type)
        {
                $this->type = $a_type;
        }

        function performAction()
        {
                if($this->getCommand())
                {
                        $method = $this->getCommand()."Object";
                }
                else
                {
                        $method = $this->objDefinition->getFirstProperty($this->getType())."Object";
                }
                $this->gui_obj->$method();

                return true;
        }
        function setAdminTabs()
        {
                global $rbacsystem;

                $tabs = array();
                $this->tpl->addBlockFile("TABS", "tabs", "tpl.tabs.html");

                $properties = $this->objDefinition->getProperties($this->getType());

                foreach($properties as $key => $row)
                {
                        $tabs[] = array($row["lng"], $row["name"]);
                }

                // check for call_by_reference too to avoid hacking
                if ($this->call_by_reference === false)
                {
                        $object_link = "&obj_id=".$_GET["obj_id"];
                }

                foreach ($tabs as $row)
                {
                        $i++;

                        if ($row[1] == $this->getCommand())
                        {
                                $tabtype = "tabactive";
                                $tab = $tabtype;
                        }
                        else
                        {
                                $tabtype = "tabinactive";
                                $tab = "tab";
                        }

                        $show = true;

                        // only check permissions for tabs if object is a permission object
                        if($this->call_by_reference)
                        {
                                // only show tab when the corresponding permission is granted
                                switch ($row[1])
                                {
                                        case 'view':
                                                if (!$rbacsystem->checkAccess('visible',$this->getId()))
                                                {
                                                        $show = false;
                                                }
                                                break;

                                        case 'edit':
                                                if (!$rbacsystem->checkAccess('write',$this->getId()))
                                                {
                                                        $show = false;
                                                }
                                                break;

                                        case 'perm':
                                                if (!$rbacsystem->checkAccess('edit_permission',$this->getId()))
                                                {
                                                        $show = false;
                                                }
                                                break;
                                        case 'trash':
                                                if (!$this->gui_obj->tree->getSavedNodeData($this->getId()))
                                                {
                                                        $show = false;
                                                }
                                                break;

                                        case 'newmembers':
                                        case 'members':
                                                if (!$rbacsystem->checkAccess('write',$this->getId()))
                                                {
                                                        $show = false;
                                                }
                                                break;

                                } //switch
                        }

                        if (!$show)
                        {
                                continue;
                        }

                        $this->tpl->setCurrentBlock("tab");
                        $this->tpl->setVariable("TAB_TYPE", $tabtype);
                        $this->tpl->setVariable("TAB_TYPE2", $tab);
                        $this->tpl->setVariable("IMG_LEFT", ilUtil::getImagePath("eck_l.gif"));
                        $this->tpl->setVariable("IMG_RIGHT", ilUtil::getImagePath("eck_r.gif"));
                        $this->tpl->setVariable("TAB_LINK", $this->gui_obj->tab_target_script."?ref_id=".$this->getId().$object_link."&cmd=".$row[1]);
                        $this->tpl->setVariable("TAB_TEXT", $this->gui_obj->lng->txt($row[0]));
                        $this->tpl->parseCurrentBlock();
                }
        }


        // PRIVATE METHODS
        function __initGUIObject($a_call_by_reference,$a_prepare_output = true)
        {
                global $objDefinition;

                include_once "./classes/class.ilObjectFactory.php";

                // GET TYPE
                if($a_call_by_reference)
                {
                        $tmp_obj =& ilObjectFactory::getInstanceByRefId($this->getId());
                }
                else
                {
                        $tmp_obj =& ilObjectFactory::getInstanceByObjId($this->getId());
                }
                $this->setType($tmp_obj->getType());

                // INITIATE GUI CLASS
                $class_name = $objDefinition->getClassName($this->getType());
                $module_name = $objDefinition->getModule($this->getType());
                
                $module_dir = $module_name ? $module_name."/" : "";
                $class_constr = "ilObj".$class_name."GUI";

                //INCLUDE CLASS
                include_once "./".$module_dir."classes/class.ilObj".$class_name."GUI.php";

                // CALL CONSTRUCTOR
                $this->gui_obj =& new $class_constr(array(),$this->getId(),$a_call_by_reference,$a_prepare_output);
                
                return true;
        }
} // END class.ilObjectGUIAdapter
?>