
The index.html file containing JavaScript that makes use of the
      Screen Orientation API functionality is listed below.
<!DOCTYPE html>
<html manifest="manifest.appcache">
  <head>
    <title>Screen Orientation API</title>
    <link rel="x-antenna-managed-webapp-descriptor" href="webapp-descriptor.xml" />
    <script type="text/javascript">
      function printText(str) {
        var d = document.getElementById('text-box');
        d.appendChild(document.createTextNode(str));
        d.appendChild(document.createElement('br'));
        d.scrollTop = d.scrollHeight;
      }
      function setAllowed() {
        window.launchbox.ScreenOrientation.setAllowed({
            'pp': document.getElementById("demo_box_1").checked,
            'pd': document.getElementById("demo_box_2").checked,
            'll': document.getElementById("demo_box_3").checked,
            'lr': document.getElementById("demo_box_4").checked
        });
      }
    </script>
  </head>
  <body>
    <header>
      <h3><span>Screen Orientation API usage example</span>
      </h3>
    </header>
    <div class="checkbox">
      <input id="demo_box_1" type="checkbox" checked="checked"/>
      <label for="demo_box_1">Portrait</label>
      <br/>
      <input id="demo_box_2" type="checkbox" checked="checked"/>
      <label for="demo_box_2">Portrait upside down</label>
      <br/>
      <input id="demo_box_3" type="checkbox" checked="checked"/>
      <label for="demo_box_3">Landscape left</label>
      <br/>
      <input id="demo_box_4" type="checkbox" checked="checked"/>
      <label for="demo_box_4">Landscape right</label>
    </div>
    <input type="button" onclick="setAllowed();" value="Set allowed orientation"/>
    <div id="text-box">
    </div>
  </body>
</html>The contents of the cache manifest file called manifest.appcache for
    this application are listed below:
CACHE MANIFEST CACHE: index.html NETWORK: *
The webapp-descriptor.xml file for this application is defined in the
    following way:
<?xml version="1.0" encoding="UTF-8"?>
<webapp-descriptor xmlns="http://www.pega.com/application-hosting/
web-app-descriptor/2.0">
    <id>com.pega.sample.ScreenOrientation</id>
    <version>1.0.0</version>
    <name>Screen Orientation API usage example</name>
</webapp-descriptor>