{
  "version": 3,
  "sources": ["../src/WebFontsAddon.ts"],
  "sourcesContent": ["/**\n * Copyright (c) 2024 The xterm.js authors. All rights reserved.\n * @license MIT\n */\n\nimport type { Terminal, ITerminalAddon } from '@xterm/xterm';\nimport type { WebFontsAddon as IWebFontsApi } from '@xterm/addon-web-fonts';\n\n\n/**\n * Unquote a font family name.\n */\nfunction unquote(s: string): string {\n  if (s[0] === '\"' && s[s.length - 1] === '\"') return s.slice(1, -1);\n  if (s[0] === '\\'' && s[s.length - 1] === '\\'') return s.slice(1, -1);\n  return s;\n}\n\n\n/**\n * Quote a font family name conditionally.\n * @see https://mathiasbynens.be/notes/unquoted-font-family\n */\nfunction quote(s: string): string {\n  const pos = s.match(/([-_a-zA-Z0-9\\xA0-\\u{10FFFF}]+)/u);\n  const neg = s.match(/^(-?\\d|--)/m);\n  if (!neg && pos && pos[1] === s) return s;\n  return `\"${s.replace(/\"/g, '\\\\\"')}\"`;\n}\n\n\nfunction splitFamily(family: string | undefined): string[] {\n  if (!family) return [];\n  return family.split(',').map(e => unquote(e.trim()));\n}\n\n\nfunction createFamily(families: string[]): string {\n  return families.map(quote).join(', ');\n}\n\n\n/**\n * Hash a font face from it properties.\n * Used in `loadFonts` to avoid bloating\n * `document.fonts` from multiple calls.\n */\nfunction hashFontFace(ff: FontFace): string {\n  return JSON.stringify([\n    unquote(ff.family),\n    ff.stretch,\n    ff.style,\n    ff.unicodeRange,\n    ff.weight\n  ]);\n}\n\n\n/**\n * Wait for webfont resources to be loaded.\n *\n * Without any argument, all fonts currently listed in\n * `document.fonts` will be loaded.\n * For a more fine-grained loading strategy you can populate\n * the `fonts` argument with:\n * - font families      :   loads all fontfaces in `document.fonts`\n *                          matching the family names\n * - fontface objects   :   loads given fontfaces and adds them to\n *                          `document.fonts`\n *\n * The returned promise will resolve, when all loading is done.\n */\nfunction _loadFonts(fonts?: (string | FontFace)[]): Promise<FontFace[]> {\n  const ffs = Array.from(document.fonts);\n  if (!fonts || !fonts.length) {\n    return Promise.all(ffs.map(ff => ff.load()));\n  }\n  let toLoad: FontFace[] = [];\n  const ffsHashed = ffs.map(ff => hashFontFace(ff));\n  for (const font of fonts) {\n    if (font instanceof FontFace) {\n      const fontHashed = hashFontFace(font);\n      const idx = ffsHashed.indexOf(fontHashed);\n      if (idx === -1) {\n        document.fonts.add(font);\n        ffs.push(font);\n        ffsHashed.push(fontHashed);\n        toLoad.push(font);\n      } else {\n        toLoad.push(ffs[idx]);\n      }\n    } else {\n      // string as font\n      const familyFiltered = ffs.filter(ff => font === unquote(ff.family));\n      toLoad = toLoad.concat(familyFiltered);\n      if (!familyFiltered.length) {\n        return Promise.reject(`font family \"${font}\" not registered in document.fonts`);\n      }\n    }\n  }\n  return Promise.all(toLoad.map(ff => ff.load()));\n}\n\n\nexport function loadFonts(fonts?: (string | FontFace)[]): Promise<FontFace[]> {\n  return document.fonts.ready.then(() => _loadFonts(fonts));\n}\n\n\nexport class WebFontsAddon implements ITerminalAddon, IWebFontsApi {\n  private _term: Terminal | undefined;\n\n  constructor(public initialRelayout: boolean = true) { }\n\n  public dispose(): void {\n    this._term = undefined;\n  }\n\n  public activate(term: Terminal): void {\n    this._term = term;\n    if (this.initialRelayout) {\n      document.fonts.ready.then(() => this.relayout());\n    }\n  }\n\n  public loadFonts(fonts?: (string | FontFace)[]): Promise<FontFace[]> {\n    return loadFonts(fonts);\n  }\n\n  public async relayout(): Promise<void> {\n    if (!this._term) {\n      return;\n    }\n    await document.fonts.ready;\n    const family = this._term.options.fontFamily;\n    const families = splitFamily(family);\n    const webFamilies = Array.from(new Set(Array.from(document.fonts).map(e => unquote(e.family))));\n    const dirty: string[] = [];\n    const clean: string[] = [];\n    for (const fam of families) {\n      (webFamilies.indexOf(fam) !== -1 ? dirty : clean).push(fam);\n    }\n    if (!dirty.length) {\n      return;\n    }\n    await _loadFonts(dirty);\n    if (this._term) {\n      this._term.options.fontFamily = clean.length ? createFamily(clean) : 'monospace';\n      this._term.options.fontFamily = family;\n    }\n  }\n}\n"],
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  "names": ["unquote", "s", "quote", "pos", "splitFamily", "family", "e", "createFamily", "families", "hashFontFace", "ff", "_loadFonts", "fonts", "ffs", "toLoad", "ffsHashed", "font", "fontHashed", "idx", "familyFiltered", "loadFonts", "WebFontsAddon", "initialRelayout", "term", "webFamilies", "dirty", "clean", "fam"]
}