HTML Code

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>presentation — helper</title>
</head>
<body>
  <button id="btn" type="button">Check presentation</button>
  <pre id="out">Click Check presentation</pre>
  <script>
    function presentationStatus() {
      if (!("presentation" in navigator)) {
        return { ok: false, reason: "api-missing" };
      }
      var receiving = !!navigator.presentation.receiver;
      return {
        ok: true,
        secure: window.isSecureContext,
        receiving: receiving,
        label: receiving ? "Receiving presentation" : "(idle)"
      };
    }
    document.getElementById("btn").addEventListener("click", function () {
      document.getElementById("out").textContent =
        JSON.stringify(presentationStatus(), null, 2);
    });
  </script>
</body>
</html>

Lines: 0 | Characters: 0

Live Preview Auto-refresh on Run

presentation — status helper (Try It)