maxwellbo.github.io/trackpad-scale.html at master · MaxwellBo/maxwellbo.github.io · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
<html>

<head>
  <meta charSet="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Trackpad Scale</title>
  <style>
    body {
      font-family: Arial, sans-serif;
      display: flex;
      justify-content: center;
      align-items: center;
      height: 100vh;
      margin: 0;
      background-color: #f0f0f0;
    }

    .container {
      display: flex;
      flex-direction: column;
      align-items: center;
      text-align: center;
    }

    h1 {
      color: #333;
      margin-bottom: 10px;
    }

    h2 {
      color: #666;
      margin-bottom: 5px;
    }

    p {
      color: #999;
      margin-bottom: 20px;
    }

    #touchArea {
      width: 300px;
      height: 200px;
      background-color: #4CAF50;
      display: flex;
      justify-content: center;
      align-items: center;
      color: white;
      font-size: 24px;
      cursor: pointer;
      transition: background-color 0.3s;
    }

    #touchArea:active {
      background-color: #45a049;
    }
  </style>
</head>

<body>
  <div class="container">
    <h1>Trackpad Scale</h1>
    <h2>OPEN IN SAFARI</h2>
    <h3>Weigh things on your trackpad</h3>
    <p>(This mostly works to see how hard you are pressing your trackpad. Once you click, you will see a weight in
      grams. Then you can try placing something on the trackpad)</p>
    <div id="touchArea">Place object here</div>
  </div>
  <script>
    const touchArea = document.getElementById('touchArea');
    const maxForce = 3.0;
    const gramsPerForceUnit = 1000 / maxForce;

    function handleForce(event) {
      if (typeof event.webkitForce !== 'undefined') {
        const force = event.webkitForce;
        const grams = Math.round(force * gramsPerForceUnit);
        touchArea.textContent = `Weight: ${grams}g`;
      } else {
        touchArea.textContent = 'Force Touch not supported';
      }
    }

    touchArea.addEventListener('mousedown', handleForce);
    touchArea.addEventListener('mousemove', handleForce);
    touchArea.addEventListener('mouseup', () => {
      touchArea.textContent = 'Place object here';
    });
  </script>
</body>

</html>