@lobehub/ui/es/Mermaid/SyntaxMermaid/prepareInlineSvg.mjs.map

Lobe UI is an open-source UI component library for building AIGC web apps

{"version":3,"file":"prepareInlineSvg.mjs","names":[],"sources":["../../../src/Mermaid/SyntaxMermaid/prepareInlineSvg.ts"],"sourcesContent":["/**\n * Root custom properties beautiful-mermaid reads; everything else in its\n * stylesheet is derived from these via color-mix().\n */\nexport const MERMAID_ROOT_VARS = [\n  '--bg',\n  '--fg',\n  '--line',\n  '--accent',\n  '--muted',\n  '--surface',\n  '--border',\n];\n\nconst styleBlockPattern = /<style>([\\s\\S]*?)<\\/style>/;\n\nconst scopeCssSelectors = (css: string, scope: string): string =>\n  css.replaceAll(/(^|})([^{}@]+)\\{/g, (_match, tail: string, selectors: string) => {\n    const scoped = selectors\n      .split(',')\n      .map((selector) => selector.trim())\n      .filter(Boolean)\n      // The generated sheet targets `svg` for the root itself, not a descendant\n      .map((selector) => (selector === 'svg' ? scope : `${scope} ${selector}`))\n      .join(', ');\n\n    return `${tail}\\n${scoped} {`;\n  });\n\n/**\n * A <style> element inside inline SVG applies to the whole document, so the\n * generated rules must be scoped to this diagram before being injected. The\n * font @import is dropped because inline rendering would actually issue the\n * Google Fonts request that an <img>-loaded SVG silently blocks, and the bare\n * `text` rule is dropped so page CSS can supply the theme font instead.\n */\nexport const prepareInlineMermaidSvg = (svg: string, scopeId: string): string => {\n  if (!svg) return svg;\n\n  const withId = svg.replace(/<svg\\b/, `<svg id=\"${scopeId}\"`);\n\n  return withId.replace(styleBlockPattern, (_match, css: string) => {\n    const withoutImports = css.replaceAll(/@import[^;]*;/g, '');\n    const withoutFontRule = withoutImports.replaceAll(/(^|})\\s*text\\s*\\{[^{}]*\\}/g, '$1');\n\n    return `<style>${scopeCssSelectors(withoutFontRule, `#${scopeId}`)}</style>`;\n  });\n};\n\n/**\n * Inline SVG resolves `var(--ant-*)` from the page, but a Blob-loaded copy is an\n * isolated document with no access to them, so the root variables are baked in\n * as literal values before serializing for preview or download.\n */\nexport const toStandaloneSvgString = (element: SVGElement): string => {\n  const clone = element.cloneNode(true) as SVGElement;\n  const computed = globalThis.getComputedStyle(element);\n\n  for (const name of MERMAID_ROOT_VARS) {\n    const value = computed.getPropertyValue(name).trim();\n    if (value) clone.style.setProperty(name, value);\n  }\n\n  const fontFamily = computed.fontFamily;\n  if (fontFamily) clone.style.setProperty('font-family', fontFamily);\n\n  return new XMLSerializer().serializeToString(clone);\n};\n"],"mappings":";;;;;AAIA,MAAa,oBAAoB;CAC/B;CACA;CACA;CACA;CACA;CACA;CACA;AACF;AAEA,MAAM,oBAAoB;AAE1B,MAAM,qBAAqB,KAAa,UACtC,IAAI,WAAW,sBAAsB,QAAQ,MAAc,cAAsB;CAS/E,OAAO,GAAG,KAAK,IARA,UACZ,MAAM,GAAG,CAAC,CACV,KAAK,aAAa,SAAS,KAAK,CAAC,CAAC,CAClC,OAAO,OAAO,CAAC,CAEf,KAAK,aAAc,aAAa,QAAQ,QAAQ,GAAG,MAAM,GAAG,UAAW,CAAC,CACxE,KAAK,IAEgB,EAAE;AAC5B,CAAC;;;;;;;;AASH,MAAa,2BAA2B,KAAa,YAA4B;CAC/E,IAAI,CAAC,KAAK,OAAO;CAIjB,OAFe,IAAI,QAAQ,UAAU,YAAY,QAAQ,EAE7C,CAAC,CAAC,QAAQ,oBAAoB,QAAQ,QAAgB;EAEhE,MAAM,kBADiB,IAAI,WAAW,kBAAkB,EACnB,CAAC,CAAC,WAAW,8BAA8B,IAAI;EAEpF,OAAO,UAAU,kBAAkB,iBAAiB,IAAI,SAAS,EAAE;CACrE,CAAC;AACH;;;;;;AAOA,MAAa,yBAAyB,YAAgC;CACpE,MAAM,QAAQ,QAAQ,UAAU,IAAI;CACpC,MAAM,WAAW,WAAW,iBAAiB,OAAO;CAEpD,KAAK,MAAM,QAAQ,mBAAmB;EACpC,MAAM,QAAQ,SAAS,iBAAiB,IAAI,CAAC,CAAC,KAAK;EACnD,IAAI,OAAO,MAAM,MAAM,YAAY,MAAM,KAAK;CAChD;CAEA,MAAM,aAAa,SAAS;CAC5B,IAAI,YAAY,MAAM,MAAM,YAAY,eAAe,UAAU;CAEjE,OAAO,IAAI,cAAc,CAAC,CAAC,kBAAkB,KAAK;AACpD"}