{"version":3,"file":"loadWebFont.mjs","sources":["../../../src/loader/parsers/loadWebFont.ts"],"sourcesContent":["import { extensions, ExtensionType, settings, utils } from '@pixi/core';\nimport { checkDataUrl } from '../../utils/checkDataUrl';\nimport { checkExtension } from '../../utils/checkExtension';\nimport { LoaderParserPriority } from './LoaderParser';\n\nimport type { ResolvedAsset } from '../../types';\nimport type { LoaderParser } from './LoaderParser';\n\nconst validWeights = [\n 'normal', 'bold',\n '100', '200', '300', '400', '500', '600', '700', '800', '900',\n];\nconst validFontExtensions = ['.ttf', '.otf', '.woff', '.woff2'];\nconst validFontMIMEs = [\n 'font/ttf',\n 'font/otf',\n 'font/woff',\n 'font/woff2',\n];\n\n/**\n * Loader plugin for handling web fonts\n * @memberof PIXI\n */\nexport type LoadFontData = {\n family: string;\n display: string;\n featureSettings: string;\n stretch: string;\n style: string;\n unicodeRange: string;\n variant: string;\n weights: string[];\n};\n\n/**\n * RegExp for matching CSS . It doesn't consider escape and non-ASCII characters, but enough for us.\n * @see {@link https://www.w3.org/TR/css-syntax-3/#ident-token-diagram}\n */\nconst CSS_IDENT_TOKEN_REGEX = /^(--|-?[A-Z_])[0-9A-Z_-]*$/i;\n\n/**\n * Return font face name from a file name\n * Ex.: 'fonts/tital-one.woff' turns into 'Titan One'\n * @param url - File url\n */\nexport function getFontFamilyName(url: string): string\n{\n const ext = utils.path.extname(url);\n const name = utils.path.basename(url, ext);\n\n // Replace dashes by white spaces\n const nameWithSpaces = name.replace(/(-|_)/g, ' ');\n\n // Upper case first character of each word\n const nameTokens = nameWithSpaces.toLowerCase()\n .split(' ')\n .map((word) => word.charAt(0).toUpperCase() + word.slice(1));\n\n let valid = nameTokens.length > 0;\n\n for (const token of nameTokens)\n {\n if (!token.match(CSS_IDENT_TOKEN_REGEX))\n {\n valid = false;\n break;\n }\n }\n\n let fontFamilyName = nameTokens.join(' ');\n\n if (!valid)\n {\n fontFamilyName = `\"${fontFamilyName.replace(/[\\\\\"]/g, '\\\\$&')}\"`;\n }\n\n return fontFamilyName;\n}\n\n// See RFC 3986 Chapter 2. Characters\nconst validURICharactersRegex = /^[0-9A-Za-z%:/?#\\[\\]@!\\$&'()\\*\\+,;=\\-._~]*$/;\n\n/**\n * Encode URI only when it contains invalid characters.\n * @param uri - URI to encode.\n */\nfunction encodeURIWhenNeeded(uri: string)\n{\n if (validURICharactersRegex.test(uri))\n {\n return uri;\n }\n\n return encodeURI(uri);\n}\n\n/** Web font loader plugin */\nexport const loadWebFont = {\n extension: {\n type: ExtensionType.LoadParser,\n priority: LoaderParserPriority.Low,\n },\n\n name: 'loadWebFont',\n\n test(url: string): boolean\n {\n return checkDataUrl(url, validFontMIMEs) || checkExtension(url, validFontExtensions);\n },\n\n async load(url: string, options?: ResolvedAsset): Promise\n {\n const fonts = settings.ADAPTER.getFontFaceSet();\n\n if (fonts)\n {\n const fontFaces: FontFace[] = [];\n const name = options.data?.family ?? getFontFamilyName(url);\n const weights = options.data?.weights?.filter((weight) => validWeights.includes(weight)) ?? ['normal'];\n const data = options.data ?? {};\n\n for (let i = 0; i < weights.length; i++)\n {\n const weight = weights[i];\n\n const font = new FontFace(name, `url(${encodeURIWhenNeeded(url)})`, {\n ...data,\n weight,\n });\n\n await font.load();\n\n fonts.add(font);\n\n fontFaces.push(font);\n }\n\n return fontFaces.length === 1 ? fontFaces[0] : fontFaces;\n }\n\n if (process.env.DEBUG)\n {\n console.warn('[loadWebFont] FontFace API is not supported. 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