pages/get-layers-under-point.html

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>PAG</title>
    <link rel="icon" href="https://pag.io/img/favicon.png" />
    <style>
      body {
        padding: 12px;
      }
      .header {
        height: 64px;
        border-bottom: 1px solid rgb(193, 193, 193);
        margin-bottom: 24px;
      }
    </style>
  </head>
  <body>
    <div class="header">
      <img src="../assets/logo.png" alt="logo" width="133" height="48" />
    </div>
    <div>
      <canvas class="canvas" id="pag"></canvas>
    </div>
    <script src="https://cdn.jsdelivr.net/npm/libpag@4.1.28/lib/libpag.min.js"></script>
    <script>
      window.onload = async () => {
        const PAG = await window.libpag.PAGInit();
        const { PAGFile, PAGView } = PAG;
        const buffer = await fetch('../assets/text.pag').then((response) => response.arrayBuffer());
        const pagFile = await PAGFile.load(buffer);

        const canvas = document.getElementById('pag');
        canvas.width = 720;
        canvas.height = 720;

        const pagView = await PAGView.init(pagFile, canvas);
        pagView.setRepeatCount(0);
        pagView.play();
        canvas.addEventListener('click', (event) => {
          const { offsetX, offsetY } = event;
          console.log(offsetX, offsetY);
          const layers = pagView.getLayersUnderPoint(offsetX * devicePixelRatio, offsetY * devicePixelRatio);
          for (let i = 0; i < layers.size(); i++) {
            const layer = layers.get(i);
            console.log(layer);
          }
        });
      };
    </script>
  </body>
</html>