gridstack.js/demo/print.html at master · gridstack/gridstack.js · GitHub

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<!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">
  <title>Print Grid Demo (Default Flow Mode)</title>

  <link rel="stylesheet" href="demo.css"/>
  <script src="../dist/gridstack-all.js"></script>

</head>
<body>
  <div class="container-fluid">
    <h1>Print Grid Demo</h1>
    <p>
      Default v13.1+ Print Behavior (Flow Mode), 6 column. Notice how large items span across multiple printed pages automatically without being sliced.<br/>
      <strong>Drawback:</strong> Cannot force exact layout, and manual page breaks/orientations may not work well.
    </p>
    <div class="gs-print-hide">
      <a class="btn btn-primary" onClick="window.print()" href="#">Print Page</a>
      <label style="margin-left: 15px;">
        <input type="checkbox" id="printModeToggle" onchange="togglePrintMode()"> Exact Print Mode
      </label>
    </div>
    <br><br>
    <div class="grid-stack" id="grid2"></div>
  </div>

  <script type="text/javascript">
    // NOTE: REAL apps would sanitize-html or DOMPurify before blinding setting innerHTML. see #2736
    GridStack.renderCB = function(el, w) {
      el.innerHTML = w.content;
    };

    let options = {
      float: true,
      cellHeight: 100,
      margin: 10,
    };

    let grid2 = GridStack.init({...options, column: 6}, '#grid2');
    let items2 = [];
    for (let i = 0; i < 15; i++) {
      let h = Math.round(1 + 3 * Math.random());
      if (i === 2 || i === 8) {
        h = 14; // Large item to span multiple pages
      }
      // Calculate a number of lines that roughly fits the height (cellHeight is 100px)
      let lines = Math.floor(h * 3.5);
      items2.push({
        w: Math.round(1 + 3 * Math.random()),
        h: h,
        content: `Random ${i+1}` + (h > 10 ? '<br>(Spans pages)<br>' : '<br>') + 'Line<br>'.repeat(lines)
      });
    }
    grid2.load(items2);

    function togglePrintMode() {
      let isExact = document.getElementById('printModeToggle').checked;
      let el = document.getElementById('grid2');
      if (isExact) {
        el.classList.add('gs-print-exact');
      } else {
        el.classList.remove('gs-print-exact');
      }
    }
  </script>
</body>
</html>