Angular2 InfoWindow content with event example

<!DOCTYPE html>
<html>

  <head>
    <base href="." />
    <title>angular2 playground</title>
    <link rel="stylesheet" href="style.css" />
    <script src="https://unpkg.com/zone.js@0.6.21/dist/zone.js"></script>
    <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script>
    <script src="https://unpkg.com/systemjs@0.19.31/dist/system.js"></script>
    <script src="https://unpkg.com/typescript@1.8.10/lib/typescript.js"></script>
    <script src="config.js"></script>
    <script src="https://maps.google.com/maps/api/js"></script>
    <script>
    System.import('app')
      .catch(console.error.bind(console));
  </script>
  </head>

  <body>
    <my-app>
    loading...
  </my-app>
  </body>

</html>

System.config({
  //use typescript for compilation
  transpiler: 'typescript',
  //typescript compiler options
  typescriptOptions: {
    emitDecoratorMetadata: true
  },
  paths: {
    'npm:': 'https://unpkg.com/'
  },
  //map tells the System loader where to look for things
  map: {
    
    'app': './src',
    
    '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
    '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
    '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
    '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
    '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
    '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
    '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
    '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
    
    '@angular/core/testing': 'npm:@angular/core/bundles/core-testing.umd.js',
    '@angular/common/testing': 'npm:@angular/common/bundles/common-testing.umd.js',
    '@angular/compiler/testing': 'npm:@angular/compiler/bundles/compiler-testing.umd.js',
    '@angular/platform-browser/testing': 'npm:@angular/platform-browser/bundles/platform-browser-testing.umd.js',
    '@angular/platform-browser-dynamic/testing': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic-testing.umd.js',
    '@angular/http/testing': 'npm:@angular/http/bundles/http-testing.umd.js',
    '@angular/router/testing': 'npm:@angular/router/bundles/router-testing.umd.js',
    
    'rxjs': 'npm:rxjs'
  },
  //packages defines our app package
  packages: {
    app: {
      main: './main.ts',
      defaultExtension: 'ts'
    },
    rxjs: {
      defaultExtension: 'js'
    }
  }
});

//main entry point
import {platformBrowserDynamic} from '@angular/platform-browser-dynamic';
import {AppModule} from './app';

platformBrowserDynamic().bootstrapModule(AppModule)

import { Component, NgModule, OnInit, ElementRef,  } from '@angular/core';
import {BrowserModule} from '@angular/platform-browser'
declare const google: any;

@Component({
  selector: 'my-app',
  templateUrl: 'src/app.html',
})
export class App implements OnInit {
  info: string;
  
  constructor() {}

  ngOnInit() {
    const mapProp = {
      center: new google.maps.LatLng(51.508742, -0.120850),
      zoom: 5,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    const map = new google.maps.Map(document.getElementById('map'), mapProp);
    this.addMarker(mapProp.center, map);
  }
  
  addMarker(pos, map) {
    const infowindow = new google.maps.InfoWindow({
      content: '<button (click)="showDetails()">Details</button>'
    });

    google.maps.event.addListener(infowindow, 'domready', () => {
      const el = document.querySelector('button');
      el.addEventListener('click', (event) => this.showDetails(event));
    });

    const marker = new google.maps.Marker({
      position: pos,
      map: map,
    });

    marker.addListener('click', function () {
      infowindow.open(this.map, marker);
    });
  }

  showDetails(event) {
    alert('Clicked.');
  }

}

@NgModule({
  imports: [ BrowserModule ],
  declarations: [ App ],
  bootstrap: [ App ]
})
export class AppModule {}

<div id="map" style="width:600px;height:420px;"></div>