web/public/remote-host-example.html at main · DataLab-Platform/web · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>DataLab-Web — Remote control demo</title>
    <style>
      body {
        font-family: system-ui, sans-serif;
        margin: 0;
        display: flex;
        height: 100vh;
      }
      #panel {
        width: 360px;
        padding: 12px;
        border-right: 1px solid #ccc;
        display: flex;
        flex-direction: column;
        gap: 8px;
        overflow-y: auto;
      }
      #panel h1 {
        font-size: 16px;
        margin: 0 0 4px;
      }
      #panel button {
        padding: 6px 10px;
        cursor: pointer;
      }
      #panel button:disabled {
        opacity: 0.5;
        cursor: not-allowed;
      }
      #log {
        flex: 1;
        font-family: ui-monospace, Menlo, monospace;
        font-size: 12px;
        background: #111;
        color: #d4d4d4;
        padding: 8px;
        overflow: auto;
        white-space: pre-wrap;
        border: 1px solid #333;
      }
      #frame-host {
        flex: 1;
      }
      iframe {
        width: 100%;
        height: 100%;
        border: 0;
      }
      .row {
        display: flex;
        gap: 6px;
      }
      .row > * {
        flex: 1;
      }
      .status {
        font-size: 12px;
        color: #555;
      }
      .status.ok {
        color: #2e7d32;
      }
      .status.err {
        color: #c62828;
      }
    </style>
  </head>
  <body>
    <div id="panel">
      <h1>Remote control demo</h1>
      <div id="status" class="status">Booting…</div>
      <div class="row">
        <button id="btn-version" disabled>get_version</button>
        <button id="btn-list" disabled>list_signals</button>
      </div>
      <button id="btn-add-signal" disabled>add_signal (sine)</button>
      <button id="btn-add-image" disabled>add_image (gradient)</button>
      <div class="row">
        <button id="btn-fft" disabled>calc(fft) on selection</button>
        <button id="btn-get" disabled>get_signal_xy(current)</button>
      </div>
      <button id="btn-remove" disabled>delete_object(current)</button>
      <button id="btn-reset" disabled>reset_all</button>
      <div id="log" aria-live="polite"></div>
    </div>
    <div id="frame-host">
      <iframe
        id="dlw"
        title="DataLab-Web"
        src="/index.html?allowedOrigins=ORIGIN_PLACEHOLDER"
      ></iframe>
    </div>

    <script type="module">
      // The SDK is consumed via Vite's dev server (TS on the fly) so this
      // demo page can be used unmodified for both manual testing and the
      // Playwright E2E spec.
      import { DataLabWebClient } from "/packages/sdk/src/index.ts";

      const log = document.getElementById("log");
      const status = document.getElementById("status");
      const iframe = document.getElementById("dlw");

      // The iframe whitelists this host's origin. Patched in at load time
      // so the same file works whether served from localhost:5173 or any
      // other deployment.
      iframe.src = iframe.src.replace(
        "ORIGIN_PLACEHOLDER",
        encodeURIComponent(window.location.origin),
      );

      function logLine(kind, text) {
        const ts = new Date().toISOString().slice(11, 23);
        log.textContent += `[${ts}] ${kind} ${text}\n`;
        log.scrollTop = log.scrollHeight;
      }

      const client = new DataLabWebClient(iframe, {
        targetOrigin: new URL(iframe.src).origin,
      });

      // Expose for Playwright (`page.evaluate(() => window.__client.…)`).
      window.__client = client;

      const buttons = {
        version: document.getElementById("btn-version"),
        list: document.getElementById("btn-list"),
        addSignal: document.getElementById("btn-add-signal"),
        addImage: document.getElementById("btn-add-image"),
        fft: document.getElementById("btn-fft"),
        get: document.getElementById("btn-get"),
        remove: document.getElementById("btn-remove"),
        reset: document.getElementById("btn-reset"),
      };

      function setEnabled(enabled) {
        for (const btn of Object.values(buttons)) btn.disabled = !enabled;
      }

      async function wrap(label, fn) {
        try {
          logLine("→", label);
          const result = await fn();
          logLine("←", `${label} → ${JSON.stringify(result)?.slice(0, 200)}`);
          return result;
        } catch (err) {
          logLine("✗", `${label} → ${err.message ?? err}`);
          throw err;
        }
      }

      buttons.version.onclick = () =>
        wrap("get_version", () => client.getVersion());
      buttons.list.onclick = () =>
        wrap("list_signals", () => client.listSignals());
      buttons.addSignal.onclick = async () => {
        const N = 256;
        const xs = Array.from({ length: N }, (_, i) => i / N);
        const ys = xs.map((x) => Math.sin(2 * Math.PI * 5 * x));
        await wrap("add_signal", () => client.addSignal("Sine 5 Hz", xs, ys));
      };
      buttons.addImage.onclick = async () => {
        const N = 32;
        const data = Array.from({ length: N }, (_, i) =>
          Array.from({ length: N }, (_, j) => i + j),
        );
        await wrap("add_image", () => client.addImage("Gradient", data));
      };
      // Operate on whatever the user has selected inside the iframe.
      // ``client.calc(...)`` with ``sources=null`` already defaults to
      // the current selection on the DataLab-Web side.
      buttons.fft.onclick = () => wrap("calc(fft)", () => client.calc("fft"));
      buttons.get.onclick = async () => {
        const sel = await client.getSelection();
        if (sel.length === 0) return logLine("!", "no current selection");
        return wrap("get_signal_xy", () => client.getSignalXY(sel[0]));
      };
      buttons.remove.onclick = async () => {
        const sel = await client.getSelection();
        if (sel.length === 0) return logLine("!", "no current selection");
        return wrap("delete_object", () => client.deleteObject(sel[0]));
      };
      buttons.reset.onclick = () => wrap("reset_all", () => client.resetAll());

      (async () => {
        try {
          status.textContent = "Waiting for DataLab-Web to be ready…";
          const version = await client.ready(180_000);
          status.textContent = `Ready — DataLab-Web v${version}`;
          status.className = "status ok";
          setEnabled(true);
          // Marker for E2E: a test waits on this to know the demo is wired.
          document.body.dataset.remoteReady = "1";
        } catch (err) {
          status.textContent = `Failed: ${err.message ?? err}`;
          status.className = "status err";
          logLine("✗", `ready: ${err.message ?? err}`);
        }
      })();
    </script>
  </body>
</html>