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import { useEffect, useRef, useState } from 'react' |
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import { SVG } from '@svgdotjs/svg.js' |
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import ImagePreview from '@/app/components/base/image-uploader/image-preview' |
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export const SVGRenderer = ({ content }: { content: string }) => { |
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const svgRef = useRef<HTMLDivElement>(null) |
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const [imagePreview, setImagePreview] = useState('') |
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const [windowSize, setWindowSize] = useState({ |
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width: typeof window !== 'undefined' ? window.innerWidth : 0, |
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height: typeof window !== 'undefined' ? window.innerHeight : 0, |
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}) |
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const svgToDataURL = (svgElement: Element): string => { |
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const svgString = new XMLSerializer().serializeToString(svgElement) |
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const base64String = Buffer.from(svgString).toString('base64') |
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return `data:image/svg+xml;base64,${base64String}` |
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} |
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useEffect(() => { |
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const handleResize = () => { |
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setWindowSize({ width: window.innerWidth, height: window.innerHeight }) |
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} |
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window.addEventListener('resize', handleResize) |
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return () => window.removeEventListener('resize', handleResize) |
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}, []) |
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useEffect(() => { |
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if (svgRef.current) { |
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try { |
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svgRef.current.innerHTML = '' |
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const draw = SVG().addTo(svgRef.current) |
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const parser = new DOMParser() |
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const svgDoc = parser.parseFromString(content, 'image/svg+xml') |
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const svgElement = svgDoc.documentElement |
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if (!(svgElement instanceof SVGElement)) |
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throw new Error('Invalid SVG content') |
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const originalWidth = parseInt(svgElement.getAttribute('width') || '400', 10) |
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const originalHeight = parseInt(svgElement.getAttribute('height') || '600', 10) |
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draw.viewbox(0, 0, originalWidth, originalHeight) |
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svgRef.current.style.width = `${Math.min(originalWidth, 298)}px` |
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const rootElement = draw.svg(content) |
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rootElement.click(() => { |
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setImagePreview(svgToDataURL(svgElement as Element)) |
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}) |
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} |
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catch (error) { |
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if (svgRef.current) |
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svgRef.current.innerHTML = '<span style="padding: 1rem;">Error rendering SVG. Wait for the image content to complete.</span>' |
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} |
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} |
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}, [content, windowSize]) |
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return ( |
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<> |
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<div ref={svgRef} style={{ |
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maxHeight: '80vh', |
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display: 'flex', |
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justifyContent: 'center', |
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alignItems: 'center', |
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cursor: 'pointer', |
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wordBreak: 'break-word', |
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whiteSpace: 'normal', |
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margin: '0 auto', |
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}} /> |
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{imagePreview && (<ImagePreview url={imagePreview} title='Preview' onCancel={() => setImagePreview('')} />)} |
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</> |
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) |
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} |
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export default SVGRenderer |
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