Add listener

Author: irustm

src/app/app.component.ts

@@ -6,12 +6,16 @@ import { Component } from '@angular/core';
     <window title="Angular app in window!">
       <text [style.font-size.px]="45">Hello, {{ name }}</text>
 
-      <button [style.background-color]="'green'">
+      <button [style.background-color]="'green'" (clicked)="setName()">
         Green button
       </button>
     </window>
   `
 })
 export class AppComponent {
   public name = 'World!';
+
+  setName() {
+    this.name = 'irustm';
+  }
 }

src/lib/renderer.ts

@@ -5,13 +5,7 @@ import {
   RendererStyleFlags2,
   RendererType2
 } from '@angular/core';
-import {
-  QWidget,
-  QPushButton,
-  QLabel,
-  FlexLayout,
-  QMainWindow
-} from '@nodegui/nodegui';
+import { QMainWindow, NativeEvent } from '@nodegui/nodegui';
 import { QWindowService } from './window';
 import { NgWindow } from './components/window';
 import { NgComponent } from './components/component';
@@ -96,7 +90,11 @@ export class NodeguiRenderer implements Renderer2 {
     eventName: string,
     callback: (event: any) => boolean | void
   ): () => void {
-    return () => {};
+    const callbackFunc = (e: NativeEvent) => callback.call(target, e);
+
+    target.addEventListener(eventName, callbackFunc);
+
+    return () => target.removeEventListener(eventName, callbackFunc);
   }
 
   nextSibling(node: any): any {