Begin Refactor

vendor/gabordemooij/redbean/RedBeanPHP/Observable.php

@@ -0,0 +1,73 @@
+<?php
+
+namespace RedBeanPHP;
+
+use RedBeanPHP\Observer as Observer;
+
+/**
+ * Observable
+ * Base class for Observables
+ *
+ * @file            RedBeanPHP/Observable.php
+ * @author          Gabor de Mooij and the RedBeanPHP community
+ * @license         BSD/GPLv2
+ *
+ * @copyright
+ * copyright (c) G.J.G.T. (Gabor) de Mooij and the RedBeanPHP Community.
+ * This source file is subject to the BSD/GPLv2 License that is bundled
+ * with this source code in the file license.txt.
+ */
+abstract class Observable { //bracket must be here - otherwise coverage software does not understand.
+
+	/**
+	 * @var array
+	 */
+	private $observers = array();
+
+	/**
+	 * Implementation of the Observer Pattern.
+	 * Adds an event listener to the observable object.
+	 * First argument should be the name of the event you wish to listen for.
+	 * Second argument should be the object that wants to be notified in case
+	 * the event occurs.
+	 *
+	 * @param string   $eventname event identifier
+	 * @param Observer $observer  observer instance
+	 *
+	 * @return void
+	 */
+	public function addEventListener( $eventname, Observer $observer )
+	{
+		if ( !isset( $this->observers[$eventname] ) ) {
+			$this->observers[$eventname] = array();
+		}
+
+		if ( in_array( $observer, $this->observers[$eventname] ) ) {
+			return;
+		}
+
+		$this->observers[$eventname][] = $observer;
+	}
+
+	/**
+	 * Notifies listeners.
+	 * Sends the signal $eventname, the event identifier and a message object
+	 * to all observers that have been registered to receive notification for
+	 * this event. Part of the observer pattern implementation in RedBeanPHP.
+	 *
+	 * @param string $eventname event you want signal
+	 * @param mixed  $info      message object to send along
+	 *
+	 * @return void
+	 */
+	public function signal( $eventname, $info )
+	{
+		if ( !isset( $this->observers[$eventname] ) ) {
+			$this->observers[$eventname] = array();
+		}
+
+		foreach ( $this->observers[$eventname] as $observer ) {
+			$observer->onEvent( $eventname, $info );
+		}
+	}
+}