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Post document height to parent when embedded #6

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Post document height to parent when embedded #6

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22 changes: 21 additions & 1 deletion src/App.tsx
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import { useEffect, useRef } from 'react';
import StickyNav from './components/layout/StickyNav';
import SectionContainer from './components/layout/SectionContainer';
import Footer from './components/layout/Footer';
Expand All @@ -12,8 +13,27 @@ const isEmbed = params.has('embed');
const country = params.get('country') || 'us';

export default function App() {
const rootRef = useRef<HTMLDivElement>(null);

// When embedded, report document height to parent for seamless iframe sizing
useEffect(() => {
if (!isEmbed || !rootRef.current) {
return;
}
const observer = new ResizeObserver(() => {
if (rootRef.current) {
window.parent.postMessage(
{ height: rootRef.current.scrollHeight },
'*'
);
}
});
observer.observe(rootRef.current);
return () => observer.disconnect();
}, []);

return (
<div style={{ minHeight: '100vh' }}>
<div ref={rootRef} style={{ minHeight: '100vh' }}>
{!isEmbed && <StickyNav />}

<SectionContainer
Expand Down