reconstruct web interface with react.js

web/build/event.js

@@ -0,0 +1,43 @@
+//Ref : http://jsfiddle.net/JxYca/3/
+var EventManager = function() {
+    this.initialize();
+};
+EventManager.prototype = {
+    initialize: function() {
+        //declare listeners as an object
+        this.listeners = {};
+    },
+    // public methods
+    addListener: function(event, fn) {
+        if (!this.listeners[event]) {
+            this.listeners[event] = [];
+        }
+        if (fn instanceof Function) {
+            this.listeners[event].push(fn);
+        }
+        return this;
+    },
+    dispatchEvent: function(event, params) {
+        // loop through listeners array
+        for (var index = 0, l = this.listeners[event].length; index < l; index++) {
+            // execute matching 'event' - loop through all indices and
+            // when ev is found, execute
+            this.listeners[event][index].call(window, params);
+        }
+    },
+    removeListener: function(event, fn) {
+        // split array 1 item after our listener
+        // shorten to remove it
+        // join the two arrays back together
+        if (this.listeners[event]) {
+            for (var i = 0, l = this.listners[event].length; i < l; i++) {
+                if (this.listners[event][i] === fn) {
+                    this.listners[event].slice(i, 1);
+                    break;
+                }
+            }
+        }
+    }
+};
+
+module.exports = EventManager;