1 files changed, 141 insertions, 0 deletions
diff --git a/source4/lib/appweb/ejs-2.0/ejs/lib/event.js b/source4/lib/appweb/ejs-2.0/ejs/lib/event.js
new file mode 100644
index 0000000000..283a3ec72f
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+++ b/source4/lib/appweb/ejs-2.0/ejs/lib/event.js
@@ -0,0 +1,141 @@
+/*
+ *	@file 	event.js
+ *	@brief 	Event class
+ *	@copy 	Copyright (c) Mbedthis Software LLC, 2005-2006. All Rights Reserved.
+ *
+ *	Usage:
+ *		listener = new System.Listener();
+ *		listener.onClick = function() {
+ *			// Any code here 
+ *		}
+ *		eventTarget.addListener(eventName, listener);
+ *	or
+ *		listener = new System.Listener(obj, method);
+ *		eventTarget.addListener(eventName, listener);
+ *
+ *	To fire events:
+ *		eventTarget.fire(eventName, new System.Event("My Event"));
+ */
+
+/******************************************************************************/
+/*
+ *	Base event class
+ */
+class System.Event 
+{
+	var		type;							// keyboard
+	var 	timeStamp;
+	var		arg;
+
+	/* MOB -- constructor should take a type */
+	function Event(arg)
+	{
+		timeStamp = time();
+		type = "default";
+		this.arg = arg;
+	}
+}
+
+/* MOB -- should not be needed */
+Event = System.Event;
+
+class System.Listener
+{
+	var		obj;
+	var		method;
+
+	function Listener(obj, method)
+	{
+		if (arguments.length >= 1) {
+			this.obj = obj;
+		} else {
+			this.obj = this;
+		}
+		if (arguments.length == 2) {
+			this.method = method;
+		} else {
+			this.method = "onEvent";
+		}
+	}
+}
+/* MOB -- should not be needed */
+Listener = System.Listener;
+
+
+/*
+ *	The Event target class
+ */
+class System.EventTarget
+{
+	//	Private
+	var	events;								/* Hash of a event names */
+
+	function EventTarget()
+	{
+		events = new Object();
+	}
+
+	//	Public
+	function addListener(eventName, listener) 
+	{
+		var listeners = events[eventName];
+		if (listeners == undefined) {
+			listeners = events[eventName] = new Array();
+		}
+		if (arguments.length == 2) {
+			var method = eventName;
+		}
+		/* MOB OPT */
+		for (var i = 0; i < listeners.length; i++) {
+			var l = listeners[i];
+			if (l == listener) {
+				return;
+			}
+		}
+		listeners[listeners.length] = listener;
+	}
+
+	function removeListener(eventName, listener)
+	{
+		var listeners = events[eventName];
+
+		if (listeners == undefined) {
+			return;
+		}
+
+		for (var i = 0; i < listeners.length; i++) {
+			var l = listeners[i];
+			if (l == listener) {
+				// MOB -- want listeners.splice here
+				// listeners.splice(i, 1);
+				for (var j = i; j < (listeners.length - 1); j++) {
+					listeners[j] = listeners[j + 1];
+				}
+				delete listeners[listeners.length - 1];
+				i = listeners.length;
+			}
+		}
+	}
+
+	function fire(eventName, event) 
+	{
+		var listeners = events[eventName];
+	
+		if (listeners == undefined) {
+			// println("Event.fire(): unknown eventName " + eventName);
+			return;
+		}
+
+		for (var i = listeners.length - 1; i >= 0; i--) {
+			var listener = listeners[i];
+			var method = listener.obj[listener.method];
+			if (method == undefined) {
+				throw new EvalError("Undefined method: " + listener.method);
+			}
+			listener.obj[listener.method](listener, event);
+		}
+	}
+}
+
+/* MOB -- should not be needed */
+EventTarget = System.EventTarget;