<?php defined("IN_DOCEBO") or die('Direct access is forbidden.');

/* ======================================================================== \
| 	DOCEBO - The E-Learning Suite											|
| 																			|
| 	Copyright (c) 2008 (Docebo)												|
| 	http://www.docebo.com													|
|   License 	http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt		|
\ ======================================================================== */

require_once(_base_.'/lib/lib.treedb.php' );
require_once(_base_.'/lib/lib.treeview.php' );

define("REPOFIELDTITLE", 0);
define("REPOFIELDOBJECTTYPE", 1);
define("REPOFIELDIDRESOURCE", 2);
define("REPOFIELDIDCATEGORY", 3);
define("REPOFIELDIDUSER", 4);
define("REPOFIELDIDAUTHOR", 5);
define("REPOFIELDVERSION", 6);
define("REPOFIELDDIFFICULT", 7);
define("REPOFIELDDESCRIPTION", 8);
define("REPOFIELDLANGUAGE", 9);
define("REPOFIELDRESOURCE", 10);
define("REPOFIELDOBJECTIVE", 11);
define("REPOFIELDDATEINSERT", 12);

define("REPOOPTSHOWONLYFOLDER", "REPOOPTSHOWONLYFOLDER");

define("REPO_ID_PRINTEDITEM","REPO_ID_PRINTEDITEM");
define("REPO_OP_SELECTITEM","REPO_OP_SELECTITEM");
define("REPO_OP_SELECTMONO","REPO_OP_SELECTMONO");
define("REPO_OP_SELECTRADIO","REPO_OP_SELECTRADIO");
define("REPO_ID_SELECTIONSTATE","REPO_ID_SELECTIONSTATE");

// repository customization of TreeDb class
class RepoDirDb extends TreeDb {
	// these 3 variales are set in overloaded addFolderById
	// before call to parent addFolderById.
	// Then these values are used in _getOtherValues overload
	var $org_title;
	var $org_obejctType;
	var $org_idResource;
	var $org_idCategory;
	var $org_idUser;
	var $org_idAuthor;
	var $org_version;
	var $org_difficult;
	var $org_description;
	var $org_language;
	var $org_resource;
	var $org_objective;
	var $org_dateInsert;
	
	
	// to filter on types
	var $filterTypes = NULL;
	// filder on access
	var $filterAccess = FALSE;
	
	// Constructor of RepoDirDb class
	function RepoDirDb( $table_name ) {
		$this->table = $table_name;
		$this->fields = array( 'id' => 'idRepo', 'idParent' => 'idParent', 'path' => 'path', 'lev' => 'lev' );
	}

	// , '.$prefix.'_repo_access';
	function setFilterTypes( $lotypes ) {
		$this->filterTypes = $lotypes;
	}
	/*
		TODO: ACL
	function setFilterVisibility( $fv = TRUE ) {
		$this->filterVisibility = $fv;
	}
	
	function setFilterAccess( $idUser = FALSE ) {
		$this->filterAccess = $idUser;
	}
	*/
	
	// Repository are stored in a table with the structure requested by
	// TreeDb to manage tree. In addition the table contains 
	// title, objectType, idResource
	function _getOtherFields($tname = FALSE) {
		if( $tname === FALSE )
			return ", title, objectType, idResource, idCategory, idUser, "
					."idAuthor, version, difficult, description, language, "
					."resource, objective, dateInsert";
		else
			return   ", ".$tname.".title,".$tname.".objectType,"
					.$tname.".idResource, ".$tname.".idCategory, "
					.$tname.".idUser, ".$tname.".idAuthor, ".$tname.".version, "
					.$tname.".difficult, ".$tname.".description, "
					.$tname.".language, ".$tname.".resource, "
					.$tname.".objective, ".$tname.".dateInsert ";
	}
	
	function _getOtherValues() {
		return ", '".addslashes($this->org_title)."', '"
				.addslashes($this->org_objectType)."', '"
				.(int)$this->org_idResource."', '"
				.(int)$this->org_idCategory."', '"
				.(int)$this->org_idUser."', '"
				.(int)$this->org_idAuthor."', '"
				.addslashes($this->org_version)."', '"
				.addslashes($this->org_difficult)."', '"
				.addslashes($this->org_description)."', '"
				.addslashes($this->org_language)."', '"
				.addslashes($this->org_resource)."', '"
				.addslashes($this->org_objective)."', '"
				.addslashes($this->org_dateInsert)."' ";
	}
	
	function _getOtherUpdates() {
		return " title='".addslashes($this->org_title)."',"
				." objectType='".addslashes($this->org_objectType)."',"
				." idResource='".(int)$this->org_idResource."',"
				." idCategory='".(int)$this->org_idCategory."',"
				." idUser='".(int)$this->org_idUser."',"
				." idAuthor='".(int)$this->org_idAuthor."',"
				." version='".addslashes($this->org_version)."',"
				." difficult='".addslashes($this->org_difficult)."',"
				." description='".addslashes($this->org_description)."',"
				." language='".addslashes($this->org_language)."',"
				." resource='".addslashes($this->org_resource)."',"
				." objective='".addslashes($this->org_objective)."',"
				." dateInsert='".addslashes($this->org_dateInsert)."' ";
	}
	/* TODO: ACL
	function _getOtherTables($tname = FALSE) {
		if( $this->filterAccess !== FALSE ) {
			global $prefix;
			if( $tname === FALSE )
				return   ' LEFT JOIN '.$prefix.'_organization_access'
						.' ON ( '.$prefix.'_organization.idOrg = '.$prefix.'_organization_access.idOrgAccess )'
						.' LEFT JOIN '.$prefix.'_coursegroupuser'
						.' ON ('.$prefix."_organization_access.kind = 'group'" 
						.'     AND '.$prefix.'_organization_access.value = '.$prefix.'_coursegroupuser.idGroup )';						
			else
				return   ' LEFT JOIN '.$prefix.'_organization_access'
						.' ON ( '.$tname.'.idOrg = '.$prefix.'_organization_access.idOrgAccess )'
						.' LEFT JOIN '.$prefix.'_coursegroupuser'
						.' ON ('.$prefix."_organization_access.kind = 'group'" 
						.'     AND '.$prefix.'_organization_access.value = '.$prefix.'_coursegroupuser.idGroup )';						
		} else 
			return "";
	}


	function _getJoinFilter($tname = FALSE) {
		return FALSE;
		if( $this->filterAccess !== FALSE ) {
			global $prefix;
			return $tname.'.idOrg = '.$prefix.'_organization_access.idOrgAccess';
		} else
			return FALSE;
	}
	*/
	
	// overload.
	// filter organization on idCourse
	// filterTypes if they are.
	// visibility in set filterVisibility
	function _getFilter($tname = FALSE) {
		$result = "";
		if( $tname === FALSE ) {
			if( $this->filterTypes !== NULL )
				$result .= " AND (objectType IN ( '".implode("','",$this->filterTypes)."' ))";
		} else {
			if( $this->filterTypes !== NULL )
				$result .= " AND (".$tname.".objectType IN ( '".implode("','",$this->filterTypes)."' ))";
		}
		/* TODO: ACL
		if( $this->filterAccess !== FALSE ) 
			$result .= " AND ( (".$prefix."_organization_access.kind = 'group'" 
						 ." 	AND ".$prefix."_coursegroupuser.idUser = '".(int)$this->filterAccess."')"
						 ."  OR (".$prefix."_organization_access.kind = 'user'"
						 ." 	AND ".$prefix."_organization_access.value = '".(int)$this->filterAccess."')"
					  ."     OR ".$prefix."_organization_access.idOrgAccess IS NULL"
					  .")";
		*/
		return $result;
	}
	
	function getMaxChildPos( $idFolder ) {
		$query = "SELECT MAX(SUBSTRING_INDEX(path, '/', -1))"
				." FROM ". $this->table
				." WHERE (". $this->fields['idParent'] ." = '". (int)$idFolder ."')"
				.$this->_getFilter();
		$rs = sql_query( $query ) 
				or die( "Error [$query] ". mysql_error() );
		if( mysql_num_rows( $rs ) == 1 ) {
			list( $result ) = sql_fetch_row( $rs );
			return $result;
		} else {
			return '00000001';
		}
	}

	function getNewPos( $idFolder ) {
		return substr('00000000' .($this->getMaxChildPos( $idFolder )+1), -8);
	}
	
	function moveUp( $idFolder ) {
		$folder = $this->getFolderById( $idFolder );
		// $parent = $this->tdb->getFolderById( $folder->idParent );
		$arrIdSiblings = $this->getChildrensIdById( $folder->idParent );
		if( !is_array( $arrIdSiblings ) )
			return;
		$pos = array_search( $idFolder, $arrIdSiblings );
		if( $pos === NULL || $pos === FALSE ) // prior to php 4.2.0 and after
			return;
		if( $pos == 0 ) // I know it's possible the merge with previous if but this is clear ...
			return;
		$folder2 = $this->getFolderById( $arrIdSiblings[$pos-1] );
		$tmpArr = explode( '/', $folder->path );
		$folderName = $tmpArr[count($tmpArr)-1];
		$tmpArr = explode( '/', $folder2->path );
		$folderName2 = $tmpArr[count($tmpArr)-1];
		echo parent::renameFolder( $folder, $folderName2."tmp" );
		echo parent::renameFolder( $folder2, $folderName );
		echo parent::renameFolder( $folder, $folderName2 );
	}
	
	function moveDown( $idFolder ) {
		$folder = $this->getFolderById( $idFolder );
		// $parent = $this->tdb->getFolderById( $folder->idParent );
		$arrIdSiblings = $this->getChildrensIdById( $folder->idParent );
		if( !is_array( $arrIdSiblings ) )
			return;
		$pos = array_search( $idFolder, $arrIdSiblings );
		if( $pos === NULL || $pos === FALSE ) // prior to php 4.2.0 and after
			return;
		if( $pos == (count($arrIdSiblings)-1) ) 
			return;
		$folder2 = $this->getFolderById( $arrIdSiblings[$pos+1] );
		$tmpArr = explode( '/', $folder->path );
		$folderName = $tmpArr[count($tmpArr)-1];
		$tmpArr = explode( '/', $folder2->path );
		$folderName2 = $tmpArr[count($tmpArr)-1];
		echo parent::renameFolder( $folder, $folderName2."tmp" );
		echo parent::renameFolder( $folder2, $folderName );
		echo parent::renameFolder( $folder, $folderName2 );
	}
	
	function addFolderById( $idParent, $folderName ) {
		$this->org_title = $folderName;	
		$this->org_objectType = '';
		$this->org_idResource = 0;
		
		$this->org_idCategory = 0;
		$this->org_idUser = 0;
		$this->org_idAuthor = 0;
		$this->org_version = '';
		$this->org_difficult = NULL;
		$this->org_description = '';
		$this->org_language = '';
		$this->org_resource = '';
		$this->org_objective = '';
		$this->org_dateInsert = '';
		echo parent::addFolderById( $idParent, $folderName);
	}
	
	/** Add a new item to tree db.
	 *	@param int $idParent the id of the container folder
	 *	@param string $title title of the item
	 *	@param string $objectType type of the lo item
	 *	@param int $idResource id of the resource
	 *	@param int $idCategory id of the category
	 *	@param int $idUser owner's id of the item
	 *	@param int $idAuthor author's id of the content
	 *	@param string $version version of the item
	 *	@param string $difficult the level of difficult of the item
	 *	@param string $description description of the item
	 *	@param string $language language of the item
	 *	@param string $resource web address from ....
	 *	@param string $objective the item's objective
	 *	@param string $dateInsert the insert date
	 *  @param array $otherData other parameters for repo extensions
	**/
	function addItem( 	$idParent, $title, $objectType, $idResource, $idCategory,
						$idUser, $idAuthor, $version, $difficult, $description,
						$language, $resource, $objective, $dateInsert,
						$otherData = NULL ) {
		
		$this->org_title = $title;
		$this->org_objectType = $objectType;
		$this->org_idResource = $idResource;
		$this->org_idCategory = $idCategory;
		$this->org_idUser = $idUser;
		$this->org_idAuthor = $idAuthor;
		$this->org_version = $version;
		$this->org_difficult = $difficult;
		$this->org_description = $description;
		$this->org_language = $language;
		$this->org_resource = $resource;
		$this->org_objective = $objective;
		$this->org_dateInsert = $dateInsert;
		$idReference = parent::addFolderById( $idParent, addslashes($title));
		return $idReference;
	}
	
	
	/** change normal behavior. 
	 *  NOTE: In repo rename change title field not path 
	 **/
	 /* NOTE: Change folder name like FS 
	function renameFolder( &$folder, $newName ) {
		$this->org_title = $newName;
		$this->org_idObject = $folder->otherValues[ORGFIELDIDOBJECT];
		$this->org_idCourse = $folder->otherValues[ORGFIELDIDCOURSE];
		$this->org_objectType = $folder->otherValues[ORGFIELDOBJECTTYPE];
		$this->org_prerequisites = $folder->otherValues[ORGFIELDPREREQUISITES];
		$this->org_isTerminator = $folder->otherValues[ORGFIELDISTERMINATOR];
		$this->org_idResource = $folder->otherValues[ORGFIELDIDRESOURCE];
		$this->org_idParam = $folder->otherValues[ORGFIELDIDPARAM];
		$this->org_visible = $folder->otherValues[ORGFIELDVISIBLE];
		$this->changeOtherData( $folder );
	}*/
	
	/* NOTE: in fs like not needed
	// overload to modify folder internal name to avoid conflicts 
	// and send it to the end of parent
	function moveFolder( &$folder, &$parentFolder ) {
		// change folder name
		$folder->path = $this->getNewPos( $parentFolder->id );
		parent::moveFolder( $folder, $parentFolder );
	}*/
	
	function modifyItem( $arrData ) {
		$folder = $this->getFolderById( $arrData['idItem'] );
		$this->org_title = $arrData['title'];
		$this->org_objectType = $folder->otherValues[REPOFIELDOBJECTTYPE];
		$this->org_idResource = $folder->otherValues[REPOFIELDIDRESOURCE];
		//$this->org_idCategory = $arrData['idCategory'];
		$this->org_idUser = $folder->otherValues[REPOFIELDIDUSER];
		$this->org_idAuthor = $folder->otherValues[REPOFIELDIDAUTHOR];
		$this->org_version = $arrData['version'];
		$this->org_difficult = $arrData['difficult'];
		//$this->org_description = $arrData['description'];
		$this->org_language = $arrData['language'];
		$this->org_resource = $arrData['resource'];
		$this->org_objective = $arrData['objective'];
		$this->org_dateInsert = $folder->otherValues[REPOFIELDDATEINSERT];;
		
		echo 'lang: '.$this->org_language.'<br />';
		
		$this->changeOtherData( $folder );
		
		/* TODO: ACL
		if( $arrData['accessGroups'] == '' ) 
			$arrGroups = array();
		else
			$arrGroups = unserialize(urldecode($arrData['accessGroups']));
		if( $arrData['accessUsers'] == '' ) 
			$arrUsers = array();
		else
			$arrUsers = unserialize(urldecode($arrData['accessUsers']));
		$this->setAccess( $arrData['idItem'], $arrGroups, $arrUsers );
			*/
		/* TODO: LO management in repo
		if( $this->org_objectType != '' ) {
			// ---- custom LO parameters
			$lo = createLO(	$this->org_objectType,
							$this->org_idResource,
							$this->org_idParam,
							array() );
			$arrParamsInfo = $lo->getParamInfo();
			if( $arrParamsInfo !== FALSE ) {
				require_once( 'core/manParam.php' );
				while( $param = current($arrParamsInfo) ) {
					if( isset( $arrData[$param['param_name']] ) )
						setLOParam( $this->org_idParam, $param['param_name'], $arrData[$param['param_name']] );
					next( $arrParamsInfo );
				}
			}
		}
		*/
	}
	
	/**
	 * function deleteAllTree()
	 *	Delete all items in tree, all folders, all records!
	 **/
	function deleteAllTree() {
		// loop on all items
		$nullVal = NULL;
		$coll = $this->getFoldersCollection( $nullVal );
		while( $folder = $coll->getNext() ) {
			if( $folder->otherValues[REPOFIELDIDRESOURCE] != 0 ) {
				$lo = createLO(	$folder->otherValues[REPOFIELDOBJECTTYPE]);
				// delete categorized resource
				require_once(_lms_.'/lib/lib.kbres.php');
				$kbres =new KbRes();
				$kbres->deleteResourceFromItem(
					$folder->otherValues[REPOFIELDIDRESOURCE],
					$folder->otherValues[REPOFIELDOBJECTTYPE],
					'course_lo'
				);
				// ---------------------------
				$ok =$lo->del($folder->otherValues[REPOFIELDIDRESOURCE]);
			}
		}
		// remove all records from repo
		parent::deleteAllTree();
	}
}

class RepoTreeView extends TreeView {
	var $options = array();
	var $creatingObjectType = '';
	var $withActions = FALSE;
	var $pathToExpand = NULL;
	
	var $kind = '';
	var $opContextId = 0;
	var $mod_name = '';
	
	var $selector_mode = FALSE;
	var $simple_selector = FALSE;
	var $itemSelectedMulti = array();
	var $filter_nodes = FALSE;
	var $printed_items = array();
	
	var $multi_choice = TRUE;
	
	function _getOpPropertiesId()	{ return $this->id.'_properties_'; }
	function _getOpCreateLO() 		{ return $this->id.'_createLOBegin'; }
	function _getOpCreateLOSel() 	{ return $this->id.'_createLOSel'; }
	function _getOpCreateLOEnd() 	{ return $this->id.'_createLOEnd'; }
	function _getOpEditLO() 		{ return $this->id.'_editLOBegin'; }
	function _getOpEditLOEnd() 		{ return $this->id.'_editLOEnd'; }
	function _getOpEditLOId() 		{ return $this->id.'_editLOBegin'; }
	function _getOpCopyLO() 		{ return $this->id.'_copyLOBegin'; }
	function _getOpCopyLOSel() 		{ return 'copyLOSel'; }
	function _getOpCopyLOEndOk() 	{ return $this->id.'_copyLOEndOk'; }
	function _getOpCopyLOEndCancel(){ return $this->id.'_copyLOEndCancel'; }
	function _getOpCopyLOId() 		{ return $this->id.'_copyLOBegin'; }
	function _getOpPlayEnd() 		{ return $this->id.'_playEnd';}

	function _getSaveImage() { return getPathImage().'treeview/save.gif'; }
	function _getOpPropertiesImg() { return getPathImage().'standard/configure.gif'; }
	
	function _getAddImage() { return getPathImage().'standard/folder_new.png'; }
	function _getAddLabel() { return Lang::t('_NEW_FOLDER', 'storage'); }
	function _getAddAlt() { return Lang::t('_NEW_FOLDER', 'storage'); }
	
	function _getFolderNameLabel() { return Lang::t('_NAME', 'storage'); }
	function _getCreateLabel() { return Lang::t('_NEW_FOLDER', 'storage'); }
	function _getCreateAlt() { return Lang::t('_NEW_FOLDER', 'storage'); }
	function _getCreateImage() { return getPathImage().'standard/folder_new.png'; }
	
	function _getCreateLOLabel() { return Lang::t('_REPOCREATELO', 'storage'); }
	function _getCreateLOAlt() { return Lang::t('_REPOCREATELO', 'storage'); }
	function _getCreateLOImage() { return getPathImage().'standard/add.png'; }
	
	function _getOpPlayTitle() { return Lang::t('_PLAY', 'storage'); }
	function _getOpEditTitle() { return Lang::t('_MOD', 'storage'); }
	function _getOpCopyTitle() { return Lang::t('_REPOCOPYLO', 'storage'); }
	function _getCopyImage()   { return getPathImage().'standard/dup.png'; }
	function _getEditImage()   { return getPathImage().'standard/edit.png'; }

	/* NOTE: Not for fs like
	function _getOpUpTitle() { return _REPOUPTITLE; }
	function _getOpDownTitle() { return _REPODOWNTITLE; }
	*/
	function _getOpPropertiesTitle() { return Lang::t('_PROPERTIES'); }
	
	function canRename() {
		return FALSE;
	}
	
	function canAdd() { 		
		if( $this->isFolderSelected() ) {
			$stackData = $this->getSelectedFolderData();
			$arrData = $stackData['folder']->otherValues;
			$isFolder = ($arrData[REPOFIELDOBJECTTYPE] === '');
			if( !$isFolder ) return array();
		}
		return TRUE; 
	}
	
	function canDelete() { 
		return FALSE;
		if( !$this->isFolderSelected() )
			return FALSE;
		$data = $this->getSelectedFolderData();
		if( $data['isLeaf'] === FALSE ) {
			return FALSE;
		} 
		return TRUE;
	}
	
	function canMove() { return FALSE; }
	
	function canInlineMove() {	return $this->withActions; }
	function canInlineRename() { return FALSE; }
	function canInlineDelete() { return $this->withActions; }
	
	function canInlineMoveItem( &$stack, $level ) {
		if( $level == 0 ) 
			return FALSE;
		return TRUE; 
	}
	function canInlineRenameItem( &$stack, $level ) {
		return FALSE;
	}
	function canInlineDeleteItem( &$stack, $level ) {
		if( $level == 0 ) 
			return FALSE;
		if( $stack[$level]['isLeaf'] === FALSE )
			return FALSE;
		else
			return TRUE;
	}
	
	
	function _getOtherActions() {
		if( $this->isFolderSelected() ) {
			$stackData = $this->getSelectedFolderData();
			$arrData = $stackData['folder']->otherValues;
			$isFolder = ($arrData[REPOFIELDOBJECTTYPE] === '');
			if( !$isFolder ) 
				return array();
				/* array(	array($this->_getOpEditLO(), Lang::t('_MOD', 'storage', 'lms'), getPathImage().'standard/edit.png' ),
								array($this->_getOpCopyLO(), Lang::t('_REPOCOPYLO', 'storage', 'lms'), getPathImage().'standard/dup.png' )
							);*/
		}
		return array( array($this->_getOpCreateLO(), Lang::t('_REPOCREATELO', 'storage'), getPathImage().'standard/add.png' )	);
	}
	
	function getFolderPrintName( &$folder ) {
		return parent::getFolderPrintName( $folder );
	}
	
	function expandPath( $path ) {
		$arrId = array();
		$splitPath = split('/', $path);
		unset( $splitPath[0] );
		$path = '';
		foreach( $splitPath as $tok ) {
			$path .= '/' . $tok;

			$folder = $this->tdb->getFolderByPath( $path );
			$arrId[] = $folder->id;
		}
		$this->pathToExpand = array_flip($arrId);
	}
	
	function setOption( $option_name, $option_value ) {
		$this->options[$option_name] = $option_value;
	}
	
	function getOption( $option_name ) {
		if( isset($this->options[$option_name]) ) 
			return $this->options[$option_name];
		else
			return NULL;
	}
	
	function beforeDeleteItem( &$folder ) {
		if( $folder->otherValues[REPOFIELDOBJECTTYPE] != '' ) {
			if( $folder->otherValues[REPOFIELDIDRESOURCE] != 0 ) {  
				$lo = createLO( $folder->otherValues[REPOFIELDOBJECTTYPE] );
				// delete categorized resource
				require_once(_lms_.'/lib/lib.kbres.php');
				$kbres =new KbRes();
				$kbres->deleteResourceFromItem(
					$folder->otherValues[REPOFIELDIDRESOURCE],
					$folder->otherValues[REPOFIELDOBJECTTYPE],
					'course_lo'
				);
				// ---------------------------
				$ret = $lo->del( $folder->otherValues[REPOFIELDIDRESOURCE] );
				return $ret;
			} else 
				return TRUE;
		}
		return parent::beforeDeleteItem($folder);
	}
	
	function refreshTree() {
		$this->refresh = TRUE;
		$this->posFlat = array();
		$this->_visitArrayDeep($this->posTree, $this->posFlat, $this->expandList, $this->compressList);
	}
	
	function selection_parseInput($arrayState) {
		$itemSelectedMulti = array();
		$printedItems = array();
		if( isset( $arrayState[$this->id] ) ) {
			if( isset( $arrayState[$this->id][REPO_ID_SELECTIONSTATE] )) {
				$this->itemSelectedMulti = unserialize(urldecode($arrayState[$this->id][REPO_ID_SELECTIONSTATE]));
			}
			if( isset( $arrayState[$this->id][REPO_OP_SELECTITEM] )) {
				$itemSelectedMulti = array_keys ( $arrayState[$this->id][REPO_OP_SELECTITEM] );
			}
			if( isset( $arrayState[$this->id][REPO_ID_PRINTEDITEM] )) {
				$printedItems = unserialize(urldecode($arrayState[$this->id][REPO_ID_PRINTEDITEM]));
			}
			if( isset( $arrayState[$this->id][REPO_OP_SELECTMONO] )) {
				$itemSelectedMulti = array($arrayState[$this->id][REPO_OP_SELECTMONO]);
			}
			if( isset( $arrayState[$this->id][REPO_OP_SELECTRADIO] )) {
				foreach( $arrayState[$this->id][REPO_OP_SELECTRADIO] as $key => $val ) {
					// $key contains tree normal group and descendants group idst
					// concat with an _
					list( $idst, $idst_desc ) = split( '_', $key );
					$printedItems[] = $idst;
					$printedItems[] = $idst_desc;
					if( $val != '' ) $itemSelectedMulti[] = $val;
				}
			}
		}
		$unselectedItems = array_diff( $printedItems, $itemSelectedMulti);
		$this->itemSelectedMulti = array_diff($this->itemSelectedMulti, $unselectedItems );
		$this->itemSelectedMulti = array_values(array_unique(array_merge( $this->itemSelectedMulti, $itemSelectedMulti )));
	}

	function extendedParsing( $arrayState, $arrayExpand, $arrayCompress ) {
		
		$this->selection_parseInput($arrayState);
		if( isset( $arrayState[$this->_getOpCreateLO()] ) ) {
			$this->op = 'createLO';
		} elseif( isset( $arrayState[$this->_getOpCreateLOSel()] )) {
			$this->op = 'createLOSel';
			$this->creatingObjectType = $_POST['radiolo'];
		} elseif( isset( $_GET[$this->_getOpCreateLOEnd()] ) ) {
			// get result and id resource
			$this->op = 'createLOEnd';
			if( isset($_GET['create_result']) ) {
				if( $_GET['create_result'] == '1' ) {
					$idResource = (int)$_GET['id_lo'];
					$lo = createLO( $this->creatingObjectType, $idResource );
					$this->tdb->addItem( $this->getSelectedFolderId(), 
										$lo->getTitle(), $this->creatingObjectType, 
										$idResource, 
										0, /* idCategory */
										0, /* idUser */ 
										getLogUserId(), /* idAuthor */
										'1.0' /* version */, 
										'_DIFFICULT_MEDIUM', /* difficult */
										'', /* description */
										'', /* language */
										'', /* resource */
										'', /* objective */
										date("Y-m-d H:i:s") );
					$this->refresh = TRUE;
				} elseif( $_GET['create_result'] == '2' ) {
					$idMultiResource = (int)$_GET['id_lo'];
					$multiLo = createLO( $this->creatingObjectType );
					$arrIdResources = $multiLo->getMultipleResource( $idMultiResource );
					foreach( $arrIdResources as $idResource ) {
						$lo = createLO( $this->creatingObjectType, $idResource );
						$this->tdb->addItem( $this->getSelectedFolderId(), 
											$lo->getTitle(), $this->creatingObjectType, 
											$idResource, 
											0, /* idCategory */
											0, /* idUser */ 
											getLogUserId(), /* idAuthor */
											'1.0' /* version */, 
											'_DIFFICULT_MEDIUM', /* difficult */
											'', /* description */
											'', /* language */
											'', /* resource */
											'', /* objective */
											date("Y-m-d H:i:s") );
					}
					$this->refresh = TRUE;
					
				}
			}
		} elseif( isset( $arrayState[$this->_getOpEditLO()] ) ) {
			$this->op = 'editLO';
		} elseif( isset( $_GET[$this->_getOpEditLOEnd()] ) ) {
			$this->op = 'editLOEnd';
		} elseif( isset( $arrayState[$this->_getOpCopyLO()] ) ) {
			$this->op = 'copyLO';
		} elseif( isset( $_GET[$this->_getOpCopyLOSel()] ) ) {
			$this->op = 'copyLOSel';
		} elseif( isset( $_GET[$this->_getOpPlayEnd()] ) ) {
			$this->op = 'itemdone';
		}
		
		if( isset( $arrayState[$this->_getOpCopyLOEndOk()] ) ) {
			// op now can be copyLOSel, but we override it
			require_once($GLOBALS['where_framework'].'/lib/lib.sessionsave.php' );
			$saveObj = new Session_Save();
			$saveName = $_GET['crepo'];
			if( $saveObj->nameExists($saveName) ) {
				$saveData =& $saveObj->load($saveName);

				$lo = createLO( $saveData['objectType'] );
				$idResource = $lo->copy((int)$saveData['idResource']);
				if( $idResource != 0 ) { 
					$lo = createLO( $saveData['objectType'] );
					$this->tdb->addItem( $this->getSelectedFolderId(), 
										$saveData['name'], $saveData['objectType'], 
											$idResource, 
											0, /* idCategory */
											0, /* idUser */ 
											getLogUserId(), /* idAuthor */
											'1.0' /* version */, 
											'_DIFFICULT_MEDIUM', /* difficult */
											'', /* description */
											'', /* language */
											'', /* resource */
											'', /* objective */
											date("Y-m-d H:i:s") );
					$this->refresh = TRUE;
				}
			}
			$this->op = 'copyLOEndOk';
		} elseif( isset( $arrayState[$this->_getOpCopyLOEndCancel()] ) ) {
			// op now can be copyLOSel, but we override it
			$this->op = 'copyLOEndCancel';
		}
		
		if( isset($arrayState[$this->id]) ) {
			foreach($arrayState[$this->id] as $key => $action) {
				if( $key == $this->_getOpPropertiesId()) {
					if( is_array( $action ) ) {
						$id = key($action);
						$this->op = 'properties';
						$this->opContextId = $id;
					}
				} elseif( $key == $this->_getOpEditLOId()) {
					if( is_array( $action ) ) {
						$id = key($action);
						if( $id > 0 ) {
							$this->op = 'editLO';
							$this->selectedFolder = $id;
						}
					}
				} elseif( $key == $this->_getOpCopyLOId()) {
					if( is_array( $action ) ) {
						$id = key($action);
						if( $id > 0 ) {
							$this->op = 'copyLO';
							$this->selectedFolder = $id;
						}
					}
				} 
			}
		}
		
		foreach( $arrayState as $nameField => $valueField ) {
			if( strstr( $nameField, $this->_getOpPropertiesId() ) ) {
				$id = substr( $nameField, strlen($this->_getOpPropertiesId()));
				$this->op = 'properties';
				$this->opContextId = $id;
			} 
			else if( strstr( $nameField, $this->_getOpEditLOId() ) ) {
				$id = substr( $nameField, strlen($this->_getOpEditLOId()));
				if( strlen( $id ) > 0 ) {
					$this->op = 'editLO';
					$this->selectedFolder = $id;
				}
			} 
			else if( strstr( $nameField, $this->_getOpCopyLOId() ) ) {
				$id = substr( $nameField, strlen($this->_getOpCopyLOId()));
				if( strlen( $id ) > 0 ) {
					$this->op = 'copyLO';
					$this->selectedFolder = $id;
				}
			} 
		}
		if( $this->pathToExpand != NULL ) {
			if( is_array($this->expandList) ) 
				$this->expandList = $this->expandList + $this->pathToExpand;
			else
				$this->expandList = $this->pathToExpand;
		}
	}
	
	function printElement(&$stack, $level) {
		$elem = parent::printElement($stack, $level);
		if( $this->withActions == FALSE ) 
			return $elem;
		if( $level > 0 ) {
			$arrData = $stack[$level]['folder']->otherValues;
			$isFolder = ($arrData[REPOFIELDOBJECTTYPE] === '');
			if( is_array($arrData) ) {
				if( funAccess('moditem','MOD', TRUE, $this->mod_name ) ) {
					/*$elem .= '<input type="image" class="tree_view_image" '
						.' src="'.$this->_getOpPropertiesImg().'"'
						.' id="'.$this->id.'_'.$this->_getOpPropertiesId().'_'.$stack[$level]['folder']->id.'" '
						.' name="'.$this->id.'['.$this->_getOpPropertiesId().']['.$stack[$level]['folder']->id.']" '
						.' title="'.$this->_getOpPropertiesTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" '
						.' alt="'.$this->_getOpPropertiesTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" />';*/
					if( !$isFolder ) {
						$elem .= '<input type="image" class="tree_view_image" ' 
							.' src="'.$this->_getCopyImage().'"'
							.' id="'.$this->id.'_'.$this->_getOpCopyLOId().'_'.$stack[$level]['folder']->id.'" '
							.' name="'.$this->id.'['.$this->_getOpCopyLOId().']['.$stack[$level]['folder']->id.']" '
							.' title="'.$this->_getOpCopyTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" '
							.' alt="'.$this->_getOpCopyTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" />';
						$elem .= '<input type="image" class="tree_view_image" ' 
							.' src="'.$this->_getEditImage().'"'
							.' id="'.$this->id.'_'.$this->_getOpEditLOId().'_'.$stack[$level]['folder']->id.'" '
							.' name="'.$this->id.'['.$this->_getOpEditLOId().']['.$stack[$level]['folder']->id.']" '
							.' title="'.$this->_getOpEditTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" '
							.' alt="'.$this->_getOpEditTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" />';
						$elem .= '<input type="image" class="tree_view_image" ' 
							.' src="'.$this->_getOpPlayItemImg().'"'
							.' id="'.$this->id.'_'.$this->_getOpPlayItemId().'_'.$stack[$level]['folder']->id.'" '
							.' name="'.$this->id.'['.$this->_getOpPlayItemId().']['.$stack[$level]['folder']->id.']" '
							.' title="'.$this->_getOpPlayTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" '
							.' alt="'.$this->_getOpPlayTitle().': '.$this->getFolderPrintName( $stack[$level]['folder']).'" />';
					} else {
						$elem .= '<div class="TVActionEmpty"></div>';
						$elem .= '<div class="TVActionEmpty"></div>';
						$elem .= '<div class="TVActionEmpty"></div>';
					}
				}
			}
		}
		return $elem;
	}
	
	function getImage( &$stack, $currLev, $maxLev ) {
		if( $currLev > 0 && $currLev == $maxLev ) {
			$arrData = $stack[$currLev]['folder']->otherValues;
			if( is_array($arrData) && $arrData[REPOFIELDOBJECTTYPE] != '' ) 
				return array( 'TreeViewImage', 'lobject/'.$arrData[REPOFIELDOBJECTTYPE].'.gif', $arrData[REPOFIELDOBJECTTYPE]);
		}	
		return parent::getImage( $stack, $currLev, $maxLev );
	}
	
	function LOSelector( $module, $back_url ) {
		
		$query = "SELECT objectType FROM ".$GLOBALS['prefix_lms']."_lo_types";
		$rs = sql_query( $query ) 
			or die( 'Table _lo_types not present');
			
		$out = '<div class="std_block">';
		$out .= '<div class="title">'
			. Lang::t('_SELECTLO', 'storage', 'lms')
			.'</div><br />';
		$out .=  getBackUi(Util::str_replace_once('&', '&amp;', $back_url), Lang::t('_BACK') );
		$out .=  '<form id="LOSelector" method="post" action="index.php?modname='.$module.'&amp;op=display&amp;'.$this->_getOpCreateLOSel().'=1" >'
			.'<input type="hidden" id="authentic_request_lo" name="authentic_request" value="'.Util::getSignature().'" />';
		$first = TRUE;
		while( list($objectType) = sql_fetch_row($rs) ) {
			$out .=  '<label for="'.$objectType.'"><img src="'.getPathImage().'lobject/'.$objectType.'.gif" alt="'.$objectType.'" '
				.'title="'.$objectType.'" /></label> ';
			if( $first ) 
				$out .=  '<input type="radio" name="radiolo" value="'.$objectType.'" id="'.$objectType.'" checked="true"/>';
			else
				$out .=  '<input type="radio" name="radiolo" value="'.$objectType.'" id="'.$objectType.'"/>';
			$out .=  ' <label for="'.$objectType.'">'. Lang::t('_LONAME_'.$objectType, 'storage').'</label>'
				.'<br />';
			$first = FALSE;
		}
		$out .=  $this->printState();
		$out .=  '<br /><input type="submit" class="button" value="'. Lang::t('_NEW')
		.'" name="'.$this->_getOpCreateLOSel().'"/>';
		$out .=  '</form>';
		$out .=  '</div>';
		return $out;
	}
	
	function _getDeleteLabel() { 
		if( $this->isFolderSelected() ) {
			$stackData = $this->getSelectedFolderData();
			
			if( !isset($stackData['folder']->otherValues) ) return Lang::t('_DEL');
			
			$arrData = $stackData['folder']->otherValues;
			$isFolder = ($arrData[REPOFIELDOBJECTTYPE] === '');
			if( !$isFolder ) return Lang::t('_DEL');
		}
		return Lang::t('_DEL');
	}
	function _getDeleteAlt() { return $this->_getDeleteLabel(); }

	function printState( $echoit = TRUE ) {
		$ot = parent::printState();
		$ot .='<input type="hidden"'
			.' id="'.$this->id.REPO_ID_SELECTIONSTATE.'"'
			.' name="'.$this->id.'['.REPO_ID_SELECTIONSTATE.']"'
			.' value="'.urlencode(serialize($this->itemSelectedMulti)).'" />'."\n";
		return $ot;
	}
	
	function load() {
		if( $this->getOption(REPOOPTSHOWONLYFOLDER) === TRUE ) {
			$this->tdb->setFilterTypes( array('') );
			$this->refresh = TRUE;
			// we must refresh
			$this->_visitArrayDeep($this->posTree, $this->posFlat, $this->expandList, $this->compressList); 
		}	

		$ot = parent::load();

		if( $this->selector_mode) {
			if( !$this->multi_choice ) {
				// only a choice - set all previously selecteds items as printed
				// and print the first as radio with checked = "cheched" in a
				// hidden div
				$arr_selected_not_printed = array_diff( $this->itemSelectedMulti, $this->printed_items);
				$ot .= "<div style=\"display: none\">\n";
				if( is_array($arr_selected_not_printed) && count($arr_selected_not_printed) > 0 ) {
					$idst = $arr_selected_not_printed[0];
					$ot .= '<input type="radio"'
						.' id="'.$this->id.REPO_OP_SELECTMONO.'_'.$idst.'" '
						.' name="'.$this->id.'['.REPO_OP_SELECTMONO.']" '
						.' value="'.$idst.'"'
						.' checked="checked" />'."\n";
				}
				$ot .= "</div>\n";
				$this->printed_items = array_merge($this->printed_items,$this->itemSelectedMulti);
			}	
		
			$ot .='<input type="hidden"'
				.' id="'.$this->id.'_'.REPO_ID_PRINTEDITEM.'"'
				.' name="'.$this->id.'['.REPO_ID_PRINTEDITEM.']"'
				.' value="'.urlencode(serialize($this->printed_items)).'" />'."\n";
		}
		return $ot;
	}
	
	function getState() {
		$parent_data = parent::getState();
		$parent_data['creatingObjectType'] = $this->creatingObjectType;
		
		return $parent_data;
	}

	function setState( $arr_state ) {
		
		parent::setState($arr_state);
		if( isset( $arr_state['creatingObjectType'] ) )
			$this->creatingObjectType = $arr_state['creatingObjectType'];
		
	}
	
	function getFolderPrintOther( &$folder ) {
		if( $this->selector_mode && $this->simple_selector && $folder->id != 0 ) {
			if( array_search( $folder->id, $this->itemDisabled ) !== FALSE )
				return 'onclick="return false;"';
			else
				return 'onclick="var c = document.getElementById( \''.$folder->idtag.'\' );'
					.'c.checked = !c.checked; return false;"';
		}
	}
	
	function getPreFolderName( &$folder ) {
		if( $this->selector_mode && $this->simple_selector && $folder->id != 0 ) { 
			$this->printed_items[] = $folder->id;
			$folder->idtag = $this->id.REPO_OP_SELECTITEM.'_'.$folder->id;
			if( $this->multi_choice )
				$out = '<input type="checkbox"'
						.' class="Treeview_checkbox"'
						.' id="'.$folder->idtag.'" '
						.' name="'.$this->id.'['.REPO_OP_SELECTITEM.']['.$folder->id.']" '
						.' value="'.$folder->id.'"';
			else
				$out = '<input type="radio"'
						.' id="'.$folder->idtag.'" '
						.' name="'.$this->id.'['.REPO_OP_SELECTMONO.']" '
						.' value="'.$folder->id.'"';
			if( array_search( $folder->id, $this->itemDisabled ) !== FALSE )
				$out .= ' disabled="disabled" ';
			if( array_search( $folder->id, $this->itemSelectedMulti ) !== FALSE ) 
				$out .= ' checked="checked" ';
			$out .= ' />';
			return $out;
		} else 
			return '';
	}
	
}

?>
