<?php

class Mobile {
	var $ismobile = null;

	function &getInstance() {
		static $theInstance;
		if(!isset($theInstance)) $theInstance = new Mobile();
		return $theInstance;
	}

	function isFromMobilePhone() {
		$oMobile =& Mobile::getInstance();
		return $oMobile->_isFromMobilePhone();
	}

	function _isFromMobilePhone() {
		if($this->ismobile !== null) return $this->ismobile;
		$db_info = Context::getDBInfo();
		if($db_info->use_mobile_view != "Y" || Context::get('full_browse') || $_COOKIE["FullBrowse"])
		{
			$this->ismobile = false;
		}
		else
		{
			$xe_web_path = Context::pathToUrl(_XE_PATH_);

			$m = Context::get('m');
			if(strlen($m)==1) {
				if($m == "1") {
					$_COOKIE["mobile"] = 'true';
					setcookie("mobile", 'true', 0, $xe_web_path);
					$this->ismobile = true;
				}
				else if($m == "0") {
					$_COOKIE["mobile"] = 'false';
					setcookie("mobile", 'false', 0, $xe_web_path);
					$this->ismobile = false;
				}
			}
			else if(isset($_COOKIE["mobile"])) {
				if($_COOKIE['mobile']  == 'true') {
					$this->ismobile = true;
				}
				else {
					$_COOKIE["mobile"] = 'false';
					setcookie("mobile", 'false', 0, $xe_web_path);
					$this->ismobile = false;
				} 
			}
			else {
				if(preg_match('/(iPod|iPhone|Android|BlackBerry|SymbianOS|SCH\-M[0-9]+)/',$_SERVER['HTTP_USER_AGENT']))
				{
					setcookie("mobile", 'true', 0, $xe_web_path);
					$this->ismobile = true;
				}
			}
		}

		return $this->ismobile;
	}

	function isMobileCheckByAgent()
	{
		if(preg_match('/(iPod|iPhone|Android|BlackBerry|SymbianOS|SCH\-M[0-9]+)/',$_SERVER['HTTP_USER_AGENT']))
			return true;
		else
			return false;
	}

	function setMobile($ismobile)
	{
		$oMobile =& Mobile::getInstance();
		$oMobile->ismobile = $ismobile;
	}
}

?>