WebKit-JavaScriptCore-Extensions/webkit-05.html at master · vrruiz/WebKit-JavaScriptCore-Extensions · GitHub

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<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
  <h1>Extending JavaScript with WebKit. Battery class.</h1>
  <div id="battery-status"></div>
  <script type="text/javascript">
    var display = function () {
        var div = document.getElementById("battery-status");
        var battery_status = "Capacity: " + Battery.capacity() + "<br>";
        battery_status += "Percentage: " + Battery.percentage() + "%<br>";
        battery_status += "Voltage: " + Battery.voltage() + "<br>";
        battery_status += "Update Time: " + Battery.updateTime() + "<br>";
        battery_status += "Power supply: " + Battery.powerSupply() + "<br>";
        div.innerHTML = battery_status;
    }

    battery = new Battery();
    battery.onChange = display;
    display();
  </script>
</body>
</html>