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feat: Add PNG export functionality #3

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feat: Add PNG export functionality #3

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57 changes: 57 additions & 0 deletions package-lock.json
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2 changes: 2 additions & 0 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,8 @@
},
"dependencies": {
"axios": "^1.10.0",
"file-saver": "^2.0.5",
"html2canvas": "^1.4.1",
"react": "^19.1.0",
"react-dom": "^19.1.0",
"reactflow": "^11.11.4"
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28 changes: 28 additions & 0 deletions src/App.jsx
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Expand Up @@ -9,6 +9,8 @@ import ReactFlow, {
} from 'reactflow';
import 'reactflow/dist/style.css';
import axios from 'axios';
import html2canvas from 'html2canvas';
import { saveAs } from 'file-saver';

// 🧠 Initial State & Helpers
const initialNodes = [];
Expand Down Expand Up @@ -155,6 +157,17 @@ export default function App() {
setLoading(false);
};

const handleExport = () => {
const reactflowWrapper = document.querySelector('.react-flow');
if (reactflowWrapper) {
html2canvas(reactflowWrapper).then((canvas) => {
canvas.toBlob((blob) => {
saveAs(blob, 'mind-map.png');
});
});
}
};

return (
<div style={{ height: '100vh', width: '100vw', backgroundColor: '#111', display: 'flex', flexDirection: 'column' }}>
{/* 🔝 Header */}
Expand Down Expand Up @@ -217,12 +230,27 @@ export default function App() {
>
⏹ Stop
</button>
<button
onClick={handleExport}
style={{
padding: '10px 20px',
backgroundColor: '#4CAF50',
color: 'white',
border: 'none',
borderRadius: '8px',
fontWeight: 'bold',
cursor: 'pointer',
}}
>
Export as PNG
</button>
</div>
</div>

{/* 🧠 ReactFlow Canvas */}
<div style={{ flexGrow: 1 }}>
<ReactFlow
className="react-flow"
nodes={nodes}
edges={edges}
onNodesChange={(changes) => setNodes((nds) => applyNodeChanges(changes, nds))}
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