1 files changed, 24 insertions, 0 deletions
diff --git a/web/src/js/stores/base.js b/web/src/js/stores/base.js
new file mode 100644
index 00000000..55808deb
--- /dev/null
+++ b/web/src/js/stores/base.js
@@ -0,0 +1,24 @@
+function EventEmitter() {"use strict";
+        this.listeners = {};
+    }
+    EventEmitter.prototype.emit=function(event) {"use strict";
+        if (!(event in this.listeners)) {
+            return;
+        }
+        this.listeners[event].forEach(function(listener) {
+            listener.apply(this, arguments);
+        }.bind(this));
+    };
+    EventEmitter.prototype.addListener=function(event, f) {"use strict";
+        this.listeners[event] = this.listeners[event] || [];
+        this.listeners[event].push(f);
+    };
+    EventEmitter.prototype.removeListener=function(event, f) {"use strict";
+        if (!(event in this.listeners)) {
+            return false;
+        }
+        var index = this.listeners[event].indexOf(f);
+        if (index >= 0) {
+            this.listeners[event].splice(index, 1);
+        }
+    };