111 lines
3.3 KiB
JavaScript
111 lines
3.3 KiB
JavaScript
import { forwardRef } from 'react'
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import { SizeMe } from 'react-sizeme'
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import { TransformWrapper, TransformComponent } from 'react-zoom-pan-pinch'
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import { Defs } from './defs.mjs'
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import { Stack } from './stack.mjs'
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export const Svg = forwardRef(
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(
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{
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embed = true,
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develop = false,
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locale = 'en',
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className = 'freesewing pattern',
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style = {},
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viewBox = false,
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width,
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height,
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children,
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},
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ref
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) => {
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if (width < 1) width = 1000
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if (height < 1) height = 1000
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let attributes = {
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xmlns: 'http://www.w3.org/2000/svg',
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'xmlns:svg': 'http://www.w3.org/2000/svg',
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xmlnsXlink: 'http://www.w3.org/1999/xlink',
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xmlLang: locale,
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viewBox: viewBox || `0 0 ${width} ${height}`,
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className,
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style,
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}
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if (!embed) {
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attributes.width = width + 'mm'
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attributes.height = height + 'mm'
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}
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if (develop) attributes.className += ' develop'
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return (
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<svg {...attributes} ref={ref}>
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{children}
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</svg>
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)
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}
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)
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Svg.displayName = 'Svg'
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/* What's with all the wrapping?
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*
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* Glad you asked. The problem lies within the pan & zoom functionality
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* For this to work, we need to reliably determine the container widht
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* However, our SVG is optimized for embedding (no width or height)
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* which means it will simply adapt to the parent container.
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* So now we have a parent container adapting to the content and the
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* content adapting to the parent. This creates a sort of stalemate
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* where the browser will render this as zero width and height.
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*
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* To avoid that, we use the SizeMe which will report the size of the
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* grandparent element, and then we wrap our SVG in a div that we
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* set to this size. This will cause the SVG to fill in that entire
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* space, and the pan and zoom to adapt to this size.
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*
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* Note that this also means that changing the browser window size
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* will cause things to get clipped until the next render.
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*
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* Also still to see how this will work with SSR
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*/
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export const SvgWrapper = forwardRef((props, ref) => {
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const { patternProps = false, gist, updateGist, unsetGist, showInfo, viewBox } = props
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if (!patternProps) return null
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return (
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<SizeMe>
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{({ size }) => (
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<TransformWrapper
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minScale={0.1}
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centerZoomedOut={true}
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wheel={{ activationKeys: ['Control'] }}
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>
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<TransformComponent>
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<div style={{ width: size.width + 'px' }}>
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<Svg {...patternProps} viewBox={viewBox} embed={gist.embed} ref={ref}>
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<Defs {...patternProps} />
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<style>{`:root { --pattern-scale: ${gist.scale || 1}} ${
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patternProps.svg.style
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}`}</style>
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<g>
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{props.children ||
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Object.keys(patternProps.stacks).map((stackName) => (
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<Stack
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{...{ gist, updateGist, unsetGist, showInfo, patternProps }}
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key={stackName}
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stackName={stackName}
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stack={patternProps.stacks[stackName]}
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/>
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))}
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</g>
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</Svg>
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</div>
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</TransformComponent>
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</TransformWrapper>
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)}
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</SizeMe>
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)
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})
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SvgWrapper.displayName = 'SvgWrapper'
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