<?php
	/**
	* jsCalendar wrapper-class
	*
	* @author Ralf Becker <RalfBecker@outdoor-training.de>
	* @copyright Copyright (C) 2003,2004 Free Software Foundation, Inc. http://www.fsf.org/
	* @license http://www.fsf.org/licenses/gpl.html GNU General Public License
	* @package phpgwapi
	* @subpackage gui
	* @version $Id: class.jscalendar.inc.php,v 1.1.2.12 2004/05/01 09:24:53 skwashd Exp $
	*/

	/**
	* jsCalendar wrapper-class
	*
	* @package phpgwapi
	* @subpackage gui
	* @internal The constructor load the necessary javascript-files
	*/
class jscalendar
{
	/*!
	@function jscalendar
	@syntax jscalendar( $do_header=True )
	@author ralfbecker
	@abstract constructor of the class
	@param $do_header if true, necessary javascript and css gets loaded, only needed for input
	*/
	function jscalendar($do_header=True)
	{
		if(!is_object($GLOBALS['phpgw']->js))
		{
			$GLOBALS['phpgw']->js = createObject('phpgwapi.javascript');
		}
		$GLOBALS['phpgw']->js->validate_file('jscalendar', 'calendar');
		$this->phpgw_js_url = $GLOBALS['phpgw_info']['server']['webserver_url'].'/phpgwapi/js';
		$this->dateformat = $GLOBALS['phpgw_info']['user']['preferences']['common']['dateformat'];

		if ($do_header && !strstr($GLOBALS['phpgw_info']['flags']['css'],'jscalendar'))
		{
			$GLOBALS['phpgw_info']['flags']['css'] .= "-->\n</style>\n"
				. '<link rel="stylesheet" type="text/css" media="all" href="'
				. $this->phpgw_js_url
				. '/jscalendar/calendar-win2k-cold-1.css" title="win2k-cold-1" />'
				. "\n<style type=\"text/css\">\n<!--\n";

			$GLOBALS['phpgw_info']['flags']['java_script'] .= "\n"
				. '<script type="text/javascript" src="'
				. $GLOBALS['phpgw']->link('/phpgwapi/js/jscalendar/jscalendar-setup.php')
				."\">\n</script>\n";
		}
	}

	/*!
	@function input
	@syntax input( $name,$date,$year=0,$month=0,$day=0 )
	@author ralfbecker
	@abstract creates an inputfield for the jscalendar (returns the necessary html and js)
	@param $name name and id of the input-field (it also names the id of the img $name.'-toggle')
	@param $date date as string or unix timestamp (in users localtime)
	@param $year,$month,$day if $date is not used
	@param $helpmsg a helpmessage for the statusline of the browser
	@param $options any other options to the inputfield
	*/
	function input($name,$date,$year=0,$month=0,$day=0,$helpmsg='',$options='')
	{
		//echo "<p>jscalendar::input(name='$name', date='$date'='".date('Y-m-d',$date)."', year='$year', month='$month', day='$day')</p>\n";

		if ($date && (is_int($date) || is_numeric($date)))
		{
			$year  = intval($GLOBALS['phpgw']->common->show_date($date,'Y'));
			$month = intval($GLOBALS['phpgw']->common->show_date($date,'n'));
			$day   = intval($GLOBALS['phpgw']->common->show_date($date,'d'));
		}
		if ($year && $month && $day)
		{
			$date = date($this->dateformat,mktime(12,0,0,$month,$day,$year));
		}
		if ($helpmsg !== '')
		{
			$options .= " onFocus=\"self.status='".addslashes($helpmsg)."'; return true;\"" .
				" onBlur=\"self.status=''; return true;\"";
		}
		return
		'<input type="text" id="'.$name.'" name="'.$name.'" size="12" value="'.$date.'"'.$options.'/>
		<script type="text/javascript">
		document.writeln(\'<img id="'.$name.'-trigger" src="'.$GLOBALS['phpgw']->common->find_image('phpgwapi','cal').'" title="'.lang('Select date').'" style="cursor:pointer; cursor:hand;"/>\');
		Calendar.setup(
			{
				inputField  : "'.$name.'",
				button      : "'.$name.'-trigger"
			}
		);
		</script>
		';
	}

	/*!
	@function input2date
	@syntax input2date( $datestr,$raw='raw',$day='day',$month='month',$year='year' )
	@author ralfbecker
	@abstract converts the date-string back to an array with year, month, day and a timestamp
	@param $datestr content of the inputfield generated by jscalendar::input()
	@param $raw key of the timestamp-field in the returned array or False of no timestamp
	@param $day,$month,$year keys for the array, eg. to set mday instead of day
	*/
	function input2date($datestr,$raw='raw',$day='day',$month='month',$year='year')
	{
		if ($datestr === '')
		{
			return False;
		}
		$fields = split('[./-]',$datestr);
		foreach(split('[./-]',$this->dateformat) as $n => $field)
		{
			$date[$field] = intval($fields[$n]);
			if($field == 'M')
			{
				for($i=1; $i <=12; $i++)
				{
					if(date('M',mktime(0,0,0,$i,1,2000)) == $fields[$n])
					{
						$date['m'] = $i;
					}
				}
			}
		}
		$ret = array(
			$year  => $date['Y'],
			$month => $date['m'],
			$day   => $date['d']
		);
		if ($raw)
		{
			$ret[$raw] = mktime(12,0,0,$date['m'],$date['d'],$date['Y']);
		}
		//echo "<p>jscalendar::input2date('$datestr','$raw',$day','$month','$year') = "; print_r($ret); echo "</p>\n";

		return $ret;
	}
}
