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Fix: Separate loading animations for PNG and SVG export buttons #278

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Fix: Separate loading animations for PNG and SVG export buttons #278

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55 changes: 32 additions & 23 deletions components/diagram/diagram-generator.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -86,7 +86,8 @@ export function DiagramGenerator() {
const [selectedTemplate, setSelectedTemplate] = useState("flowchart");
const [isGenerating, setIsGenerating] = useState(false);
const [isCopying, setIsCopying] = useState(false);
const [isExporting, setIsExporting] = useState(false);
const [isExportingPNG, setIsExportingPNG] = useState(false);
const [isExportingSVG, setIsExportingSVG] = useState(false);
const [activeTab, setActiveTab] = useState("editor");
const { toast } = useToast();
const diagramRef = useRef<HTMLDivElement>(null);
Expand Down Expand Up @@ -158,14 +159,15 @@ export function DiagramGenerator() {
const exportDiagram = async (format: 'png' | 'svg') => {
if (!diagramRef.current) return;

setIsExporting(true);

const setLoading = format === 'png' ? setIsExportingPNG : setIsExportingSVG;
setLoading(true);

try {
const element = diagramRef.current.querySelector('#mermaid-diagram');
if (!element) throw new Error('Diagram element not found');

let dataUrl: string;

if (format === 'png') {
dataUrl = await toPng(element as HTMLElement, {
backgroundColor: '#ffffff',
Expand All @@ -177,8 +179,7 @@ export function DiagramGenerator() {
backgroundColor: '#ffffff'
});
}

// Create download link

const link = document.createElement('a');
link.download = `diagram.${format}`;
link.href = dataUrl;
Expand All @@ -196,7 +197,7 @@ export function DiagramGenerator() {
variant: "destructive",
});
} finally {
setIsExporting(false);
setLoading(false);
}
};

Expand Down Expand Up @@ -376,10 +377,10 @@ export function DiagramGenerator() {
<Button
variant="outline"
onClick={() => exportDiagram('png')}
disabled={isExporting}
disabled={isExportingPNG}
className="glass-effect border-yellow-400/30 hover:border-yellow-400/60"
>
{isExporting ? (
{isExportingPNG ? (
<Loader2 className="mr-2 h-4 w-4 animate-spin" />
) : (
<FileImage className="mr-2 h-4 w-4" />
Expand All @@ -389,10 +390,10 @@ export function DiagramGenerator() {
<Button
variant="outline"
onClick={() => exportDiagram('svg')}
disabled={isExporting}
disabled={isExportingSVG}
className="glass-effect border-yellow-400/30 hover:border-yellow-400/60"
>
{isExporting ? (
{isExportingSVG ? (
<Loader2 className="mr-2 h-4 w-4 animate-spin" />
) : (
<Download className="mr-2 h-4 w-4" />
Expand Down Expand Up @@ -455,20 +456,28 @@ export function DiagramGenerator() {
<div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-4 gap-4">
<Button
onClick={() => exportDiagram('png')}
disabled={isExporting}
disabled={isExportingPNG}
className="bolt-gradient text-white font-semibold hover:scale-105 transition-all duration-300"
>
<FileImage className="mr-2 h-4 w-4" />
PNG Export
{isExportingPNG ? (
<Loader2 className="mr-2 h-4 w-4 animate-spin" />
) : (
<FileImage className="mr-2 h-4 w-4" />
)}
Export PNG
</Button>
<Button
onClick={() => exportDiagram('svg')}
disabled={isExporting}
disabled={isExportingSVG}
variant="outline"
className="glass-effect border-yellow-400/30 hover:border-yellow-400/60"
>
<Download className="mr-2 h-4 w-4" />
SVG Export
{isExportingSVG ? (
<Loader2 className="mr-2 h-4 w-4 animate-spin" />
) : (
<Download className="mr-2 h-4 w-4" />
)}
Export SVG
</Button>
<Button
onClick={copyToClipboard}
Expand All @@ -477,11 +486,11 @@ export function DiagramGenerator() {
className="glass-effect border-yellow-400/30 hover:border-yellow-400/60"
>
{isCopying ? (
<Check className="mr-2 h-4 w-4 text-green-500" />
) : (
<Copy className="mr-2 h-4 w-4" />
)}
Copy Code
<Check className="mr-2 h-4 w-4 text-green-500" />
) : (
<Copy className="mr-2 h-4 w-4" />
)}
Copy Code
</Button>
<Button
onClick={shareDiagram}
Expand Down