/SessionManager.php

<?php



/**

 * Global session manager for connections to the Selenium 2 server

 */

class Menta_SessionManager {



	/**

	 * @var WebDriver_Session

	 */

	protected static $session;



	/**

	 * @var WebDriver

	 */

	protected static $webdriver;



	/**

	 * @var string

	 */

	protected static $browser = 'firefox';



	/**

	 * @var string

	 */

	protected static $serverUrl = 'http://localhost:4444/wd/hub';



	/**

	 * @var array

	 */

	protected static $additionalCapabilities = array();



	/**

	 * Init settings

	 *

	 * @static

	 * @param $serverUrl

	 * @param string $browser

	 * @param array $additionalCapabilities

	 * @return void

	 */

	public static function init($serverUrl=NULL, $browser=NULL, array $additionalCapabilities=NULL) {

		if (!is_null($serverUrl)) {

			self::$serverUrl = $serverUrl;

		}

		if (!is_null($browser)) {

			self::$browser = $browser;

		}

		if (!is_null($additionalCapabilities)) {

			self::$additionalCapabilities = $additionalCapabilities;

		}

	}





	/**

	 * @static

	 * @return WebDriver

	 */

	public static function getWebdriver() {

		if (is_null(self::$webdriver)) {

			if (empty(self::$serverUrl)) {

				throw new Exception('No serverUrl set. Call Menta_SessionManager::init() to configure first');

			}

			self::$webdriver = new WebDriver(self::$serverUrl);

		}

		return self::$webdriver;

	}



	/**

	 * @param bool $forceNew

	 * @static

	 * @return WebDriver_Session

	 */

	public static function getSession($forceNew=false) {

		if ($forceNew) {

			self::closeSession();

		}

		if (is_null(self::$session)) {

			self::$session = self::getWebdriver()->session(self::$browser, self::$additionalCapabilities);

			if (!self::$session instanceof WebDriver_Session) {

				throw new Exception('Error while creating new session');

			}

			Menta_Events::dispatchEvent('after_session_create', array(

				'session' => self::$session,

				'forceNew' => $forceNew

			));

		}

		return self::$session;

	}



	/**

	 * Check if an active session exists

	 *

	 * @static

	 * @return bool

	 */

	public static function activeSessionExists() {

		return (self::$session instanceof WebDriver_Session);

	}



	/**

	 * Close existing session

	 *

	 * @static

	 * @return void

	 */

	public static function closeSession() {

		if (self::activeSessionExists()) {

			Menta_Events::dispatchEvent('before_session_close', array('session' => self::$session));

			self::$session->close();

			self::$session = NULL;

			Menta_Events::dispatchEvent('after_session_close');

		}

	}



}