systrace/catapult/third_party/polymer/components/app-route/test/app-example-1.html

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<link rel='import' href='../app-route.html'>
<link rel='import' href='../app-location.html'>

<dom-module id='app-example-1'>
  <template>
    <app-location route='{{route}}'>
    </app-location>
    <app-route id="page" route='{{route}}' pattern='/:page' data='{{data}}'>
    </app-route>
    <app-route id="user" route='{{route}}' pattern='/user' tail='{{userRoute}}'>
    </app-route>
    <app-route id="tail" route='{{userRoute}}' pattern='/:page' data='{{userData}}' query-params="{{userQueryParams}}">
    </app-route>
  </template>
  <script>
    Polymer({
      is: 'app-example-1',
      observers: [
        'pageChanged(data.page)',
        'userPathChanged(userRoute.path)',
      ],
      pageChanged: function(page) {
        if (page === 'redirectToUser') {
          this.set('data.page', 'user');
        }
      },
      userPathChanged: function(path) {
        // Redirect from /user/ and /user to /user/view
        if (path === '/' || path === '') {
          this.set('userRoute.path', '/view');
        }
      }
    })
  </script>
</dom-module>