examples/test-button.html from spritejs/spritejs

examples/test-button.html
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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="/js/spritejs.js"></script>
  <style>
    #container {
      width: 300px;
      height: 300px;
    }
  </style>
</head>
<body>
  <div id="container"></div>
  <script>
  const {Scene, Label} = spritejs;
  const container = document.getElementById('container');
  const scene = new Scene({
    container,
    width: 600,
    height: 600,
  });

  const button = new Label('Press');
  button.attr({
    anchor: 0.5,
    pos: [200, 300],
    size: [200, 300],
    font: '64px Arial',
    textAlign: 'center',
    lineHeight: 100,
    border: [6, '#333'],
    borderRadius: 20,
    fillColor: '#000',
  });

  scene.layer().append(button);

  const transition = button.transition(0.5);
  button.addEventListener('mouseenter', (evt) => {
    transition.attr({
      bgcolor: '#666',
      fillColor: '#fff',
    });
  });

  button.addEventListener('mouseleave', (evt) => {
    transition.reverse();
  });

  button.addEventListener('mousedown', (evt) => {
    button.attr({scale: 0.9});
  });

  button.addEventListener('mouseup', (evt) => {
    button.attr({scale: 1.0});
  });
  </script>
</body>
</html>