I am trying to update the view after an event listener is fired. However, the change is not detected and isn't update until another change is detected.

```js
import {
  Component, View, bootstrap
} from 'angular2/angular2';

@Component({
  selector: 'app'
})
@View({
  template: '{{keyword}} <input id="keyword" /><br/><span (click)="update()">{{click}}</span>'
})
class App {
  keyword;
  autocomplete;
  click;

  constructor() {
    var _this = this;
    var input = (document.getElementById('keyword'));
    this.autocomplete = new google.maps.places.Autocomplete(input);
    google.maps.event.addListener(this.autocomplete, 'place_changed', function(){
      console.log('place change');
      _this.keyword = "updated text";
      _this.click = "not clicked";
    });
    this.keyword = "original text";
    this.click = "click me after selection is made to force change";
  }

  update() {
    console.log("click");
    this.click = "clicked";
  }

}

bootstrap(App);
```

```html
<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="style.css" />
    <script data-require="jquery@2.1.4" data-semver="2.1.4" src="http://code.jquery.com/jquery-2.1.4.min.js"></script>
    <script src="https://jspm.io/system.js"></script>
    <script src="https://code.angularjs.org/2.0.0-alpha.30/angular2.dev.js"></script>
    <script src="https://maps.googleapis.com/maps/api/js??v=3.exp&libraries=places"></script>
  </head>

  <body>
    <app></app>

    <script>
      System.import('main');
    </script>
  </body>

</html>
```

If you change the location in the input, the text to the left should change. It only is changed after another change is detected, for example clicking the text below.

What am I doing wrong and how do I do it right?