<?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		|
\ ======================================================================== */

/**
 * Extend Selector class
 *
 * @package admin-core
 * @subpackage user
 * @author   Giovanni Derks <virtualdarkness[AT]gmail-com>
 * @version  $Id: lib.selextend.php 113 2006-03-08 18:08:42Z ema $
 */


class ExtendSelector {

	/** extra selectors */
	var $extra_sel=array();

	/** selected items */
	var $selected_items=array();

	/** selected items */
	var $database_items=array();

	/** printed items */
	var $printed_items=array();


	/**
	 * ExtendSelector constructor
	 */
	function ExtendSelector() {

	}


	/**
	 * @param $arr array with the extra field information
	 * Sets the extra_sel array with the one provided by the user
	 */
	function setExtraSel($arr) {
		$this->extra_sel=$arr;
	}


	/**
	 * @param $arr array with the printed items information
	 * Sets the printed_items array with the one provided by the user
	 */
	function setPrintedItems($arr) {
		$this->printed_items=$arr;
	}


	/**
	 * @param $arr array
	 * @param $pfx string
	 */
	function grabSelectedItems($arr=FALSE, $pfx="selector") {

		if ($arr === false) {
			$arr=$_POST;
		}

		$valid_keys=array_keys($this->extra_sel);
		//foreach($arr as $key=>$val) {
		//	if (in_array($key, $valid_keys)) {
		foreach($valid_keys as $key=>$val) {

			if (isset($arr[$val]))
				$this->selected_items[$val]=array_keys($arr[$val]);

			//}
		}

		if (isset($_POST[$pfx."_selected_items"]))
			$old_sel=unserialize(urldecode($_POST[$pfx."_selected_items"]));
		else
			$old_sel=false;
		foreach($valid_keys as $key=>$val) {
			if ((!isset($this->printed_items)) || (!is_array($this->printed_items))) {
				$this->printed_items=array();
			}
			if ((isset($old_sel[$val])) && (is_array($old_sel[$val]))) {
				$old_sel[$val]=array_diff($old_sel[$val], $this->printed_items);
			}
		}

		if (is_array($old_sel)) {
			foreach($valid_keys as $key=>$val) {
				if ((!isset($this->selected_items[$val])) || (!is_array($this->selected_items[$val]))) {
					$this->selected_items[$val]=array();
				}
				if ((!isset($old_sel[$val])) || (!is_array($old_sel[$val]))) {
					$old_sel[$val]=array();
				}
				$this->selected_items[$val]=array_unique(array_merge($this->selected_items[$val], $old_sel[$val]));
			}
			//$arr=$old_sel;
		}

		if (isset($_POST[$pfx."_database_items"]))
			$this->database_items=$this->getDatabaseItemsFromVar($_POST[$pfx."_database_items"]);
		else
			$this->database_items=array();


	}


	function setSelectedItems($arr=FALSE) {
		if ($arr === false) {
			$arr=$_POST;
		}

		$valid_keys=array_keys($this->extra_sel);

		foreach($valid_keys as $key=>$val) {
			if (isset($arr[$val]))
				$this->selected_items[$val]=array_keys($arr[$val]);
		}
	}


	/**
	 * @return array
	 */
	function getSelectedItems() {
		//print_r($this->selected_items);
		if (count($this->selected_items) <= 0)
			$this->grabSelectedItems();
		//print_r($this->selected_items);
		return $this->selected_items;
	}


	/**
	 * @param $arr array
	 *
	 */
	function setDatabaseItems($arr) {
		$this->database_items=$arr;
	}

	function getDatabaseItemsFromVar($serialized_var=FALSE, $pfx="selector") {

		if ($serialized_var === FALSE)
			$serialized_var=$_POST[$pfx."_database_items"];

		if (isset($serialized_var))
			return unserialize(urldecode($serialized_var));
		else
			return array();
	}


	function extendListRow($row_id) {

		$res=array();
		foreach ($this->extra_sel as $key=>$val) {
			if ((isset($this->selected_items[$key])) && (is_array($this->selected_items[$key])))
				$chk=(in_array($row_id, $this->selected_items[$key]) ? true : false);
			else
				$chk=false;
			$res["col_".$key]=Form::getCheckbox("", $key."_".$row_id."_", $key."[".$row_id."]", 1, $chk);
		}

		return $res;
	}


	function extendListHeader() {

		$res=array();
		foreach ($this->extra_sel as $key=>$val) {

			$alt=$val["alt"];
			if (isset($val["title"]))
				$title=$val["title"];
			else
				$title=$alt;

			$res["col_".$key]="<img src=\"".$val["img"]."\" alt=\"".$alt."\" title=\"".$title."\" />";
		}
		return $res;
	}

	function extendGroupListRow() {
	}


	function extendOrgChartListRow() {
	}


	/**
	 * @param $pfx string the prefix for the id/name of the hidden field
	 * @return string the html code of the hidden field containing the serialized and urlencoded values
	 * 	of the selected items array. This function does what the printState does for normal selector
	 */
	function writeSelectedInfo($pfx="selector") { //serialize
		require_once(_base_."/lib/lib.form.php");
		$form=new Form();
		$res="";
		$res.=$form->getHidden($pfx."_selected_items", $pfx."_selected_items", urlencode(serialize($this->selected_items)));
		$res.=$form->getHidden($pfx."_database_items", $pfx."_database_items", urlencode(serialize($this->database_items)));
		return $res;
	}


}


?>
