2024-02-18 00:29:58 +01:00
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<!DOCTYPE html>
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<html>
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<head>
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<title>treehouse iframe sandbox</title>
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<style>
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body {
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margin: 0;
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overflow: hidden;
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}
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2024-02-18 10:58:57 +01:00
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canvas {
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display: block;
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}
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2024-02-18 00:29:58 +01:00
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</style>
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<script type="importmap">{ "imports": { "treehouse/": "{{ config.site }}/static/js/" } }</script>
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<script type="module">
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import { evaluate } from "treehouse/components/literate-programming/eval.js";
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2024-02-18 10:58:57 +01:00
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// I'm aware there's also ResizeObserver but it didn't seem to fire off any events when a
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// canvas was added, rendering it pretty much useless.
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let mutationObserver = new MutationObserver(() => {
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postMessage({
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kind: "resize",
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width: document.body.scrollWidth,
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height: document.body.scrollHeight,
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});
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});
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mutationObserver.observe(document.body, { subtree: true, childList: true });
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2024-02-18 00:29:58 +01:00
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addEventListener("message", async event => {
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let message = event.data;
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if (message.action == "eval") {
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document.body.replaceChildren();
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evaluate(message.input);
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}
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});
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2024-02-18 10:58:57 +01:00
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2024-02-18 00:29:58 +01:00
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</script>
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</head>
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<body></body>
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</html>
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