[wip] NS instance topology view

[osm/LW-UI.git] / static / TopologyComposer / js / event.js

diff --git a/static/TopologyComposer/js/event.js b/static/TopologyComposer/js/event.js
new file mode 100755 (executable)
index 0000000..6519b7d
--- /dev/null
+++ b/static/TopologyComposer/js/event.js
@@ -0,0 +1,74 @@
+/*
+   Copyright 2017 CNIT - Consorzio Nazionale Interuniversitario per le Telecomunicazioni
+   Copyright 2018 EveryUP srl
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an  BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+if (typeof TCD3 === 'undefined') {
+    var TCD3 = {};
+}
+
+TCD3.Event = (function () {
+    'use strict';
+
+    function Event () {
+        this._listeners = {};
+    }
+
+    Event.prototype.addL = function (type, listener) {
+        if (typeof this._listeners[type] === "undefined"){
+            this._listeners[type] = [];
+        }
+        this._listeners[type].push(listener);
+    };
+
+    Event.prototype.fire = function (event, args) {
+        if (typeof event === "string"){
+            event = { type: event };
+        }
+        if (!event.target){
+            event.target = this;
+        }
+
+        if (!event.type){
+            throw new Error("Event object missing 'type' property.");
+        }
+
+        if (this._listeners[event.type] instanceof Array){
+            var listeners = this._listeners[event.type];
+            for (var i=0, len=listeners.length; i < len; i++){
+                listeners[i].call(this, event, args);
+            }
+        }
+    };
+
+    /*Event.prototype.addListener = function (type, listener) {
+        if (this._listeners[type] instanceof Array){
+            var listeners = this._listeners[type];
+            for (var i=0, len=listeners.length; i < len; i++){
+                if (listeners[i] === listener){
+                    listeners.splice(i, 1);
+                    break;
+                }
+            }
+        }
+
+    };*/
+
+    return Event;
+}());
+
+if (typeof module === 'object') {
+    module.exports = TCD3.Event;
+}