SendBSV-Wallet/examples/embed-host/react-host.html at main · BSVanon/SendBSV-Wallet · GitHub

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>SendBSV embed — React host using &lt;sendbsv-pay&gt;</title>
  <style>
    body {
      font-family: system-ui, -apple-system, sans-serif;
      max-width: 480px;
      margin: 48px auto;
      padding: 0 16px;
      color: #1a1a1a;
    }
    .result {
      margin-top: 24px;
      padding: 12px;
      border: 1px solid #ddd;
      border-radius: 6px;
      font-family: ui-monospace, monospace;
      font-size: 12px;
      white-space: pre-wrap;
      word-break: break-all;
    }
  </style>
</head>
<body>
  <div id="root"></div>

  <script src="https://unpkg.com/react@18/umd/react.production.min.js" crossorigin></script>
  <script src="https://unpkg.com/react-dom@18/umd/react-dom.production.min.js" crossorigin></script>
  <script src="../../dist-embed/embed.js"></script>

  <script>
    /**
     * React host using the <sendbsv-pay> custom element. The element
     * fires `sendbsv-success` / `-declined` / `-error` as native
     * CustomEvents — React's synthetic-event layer doesn't know about
     * custom events by name, so we bind via a ref + addEventListener
     * in useEffect (standard React-with-custom-elements pattern).
     */
    const { useState, useEffect, useRef, createElement: h } = React;

    function PayButton() {
      const ref = useRef(null);
      const [result, setResult] = useState("Awaiting interaction…");

      useEffect(() => {
        const el = ref.current;
        if (!el) return;
        const onSuccess = (e) => setResult(`✓ paid — txid ${e.detail.txid}\namount ${e.detail.amount} sats`);
        const onDeclined = (e) => setResult(`× declined — ${e.detail.reason}`);
        const onError = (e) => setResult(`! error — ${e.detail.message}`);
        el.addEventListener("sendbsv-success", onSuccess);
        el.addEventListener("sendbsv-declined", onDeclined);
        el.addEventListener("sendbsv-error", onError);
        return () => {
          el.removeEventListener("sendbsv-success", onSuccess);
          el.removeEventListener("sendbsv-declined", onDeclined);
          el.removeEventListener("sendbsv-error", onError);
        };
      }, []);

      return h("div", null,
        h("h1", null, "Donate to the project"),
        h("p", null, "React app, custom element, no third-party script bundler needed."),
        h("sendbsv-pay", {
          ref,
          to: "alice@sendbsv.com",
          amount: "500",
          description: "Donation — React demo",
          label: "Donate 500 sats"
        }),
        h("div", { className: "result" }, result)
      );
    }

    const root = ReactDOM.createRoot(document.getElementById("root"));
    root.render(h(PayButton));
  </script>
</body>
</html>