how-to-code-samples/access-control/javascript/index.html at master · intel-iot-devkit/how-to-code-samples · GitHub

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<!doctype html>
<html lang="en">
<head>
    <meta name="viewport" content="width=device-width, user-scalable=no">
    <title>Access Control</title>
<link rel="stylesheet" href="styles.css">
    <style>
      .row {
        margin: 5px 0;
      }

      #display {
        font-family: monospace;
        text-align: center;
        color: red;
        margin-bottom: 15px;
        min-height: 40px;
      }

      .buttons-cell {
        margin-top: 15px;
      }
    </style>
</head>
<body>
    <div class="container">
      <div id="pad" class="col-xs-12 col-md-4 col-md-offset-4">
        <div class="row">
          <div class="col-xs-12">
            <div id="display" class="form-control"></div>
          </div>
        </div>
        <div class="row">
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">7</button>
          </div>
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">8</button>
          </div>
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">9</button>
          </div>
        </div>

        <div class="row">
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">4</button>
          </div>
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">5</button>
          </div>
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">6</button>
          </div>
        </div>

        <div class="row">
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">1</button>
          </div>
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">2</button>
          </div>
          <div class="col-xs-4">
            <button class="btn btn-default btn-lg btn-block">3</button>
          </div>
        </div>

        <div class="row">
          <div class="col-xs-12 col-md-6 buttons-cell">
            <button id="submit" class="btn btn-success btn-lg btn-block">Submit</button>
          </div>
          <div class="col-xs-12 col-md-6 buttons-cell">
            <button id="clear" class="btn btn-info btn-lg btn-block">Clear</button>
          </div>
        </div>

      </div>
    </div>

    <script>
      var numpad = document.querySelectorAll("#pad .row button"),
          display = document.getElementById("display"),
          submit = document.getElementById("submit"),
          clear = document.getElementById("clear");
      function add(e) {
        if (display.textContent.length >= 4) { return; }
        var num = e.target.textContent;
        display.textContent += num;
      }
      function clearDisplay() {
        display.textContent = "";
      }
      clear.addEventListener("click", clearDisplay);
      submit.addEventListener("click", function() {
        var req = new XMLHttpRequest(),
            code = display.textContent;
        req.open("get", "/alarm?code=" + code, true);
        req.send();
        clearDisplay();
      });
      for (var i = 0; i < numpad.length; i++) {
        numpad[i].addEventListener("click", add);
      }
    </script>
</body>
</html>