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reset preview when error

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This commit is contained in:
Aakansha Doshi 2023-08-29 21:59:46 +05:30
parent 21a804a4e5
commit f696d36e03
1 changed files with 6 additions and 5 deletions
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11
src/components/MermaidToExcalidraw.tsx
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@ -79,6 +79,10 @@ const MermaidToExcalidraw = ({
useEffect(() => { useEffect(() => {
const convertMermaidToExcal = async () => { const convertMermaidToExcal = async () => {
let mermaidGraphData; let mermaidGraphData;
const canvasNode = canvasRef.current;
if (!canvasNode) {
return;
}
try { try {
mermaidGraphData = await mermaidToExcalidrawLib.current.parseMermaid( mermaidGraphData = await mermaidToExcalidrawLib.current.parseMermaid(
text, text,
@ -87,7 +91,8 @@ const MermaidToExcalidraw = ({
}, },
); );
} catch (e) { } catch (e) {
// Parse error, displaying error message to users console.error(e);
canvasNode.replaceChildren();
} }
if (mermaidGraphData) { if (mermaidGraphData) {
@ -99,10 +104,6 @@ const MermaidToExcalidraw = ({
files, files,
}; };
const canvasNode = canvasRef.current;
if (!canvasNode) {
return;
}
const maxWidth = canvasNode.offsetWidth; const maxWidth = canvasNode.offsetWidth;
const maxHeight = canvasNode.offsetHeight; const maxHeight = canvasNode.offsetHeight;
let dimension = Math.max(maxWidth, maxHeight); let dimension = Math.max(maxWidth, maxHeight);