vue-files-preview-inno/es/node_modules/epubjs/src/resources.mjs.map

A tool for previewing files such as doc, excel, pdf, image, markdown, txt, audio, and video and so on.

{"version":3,"file":"resources.mjs","sources":["../../../../../node_modules/epubjs/src/resources.js"],"sourcesContent":["import {substitute} from \"./utils/replacements\";\nimport {createBase64Url, createBlobUrl, blob2base64} from \"./utils/core\";\nimport Url from \"./utils/url\";\nimport mime from \"./utils/mime\";\nimport Path from \"./utils/path\";\nimport path from \"path-webpack\";\n\n/**\n * Handle Package Resources\n * @class\n * @param {Manifest} manifest\n * @param {object} [options]\n * @param {string} [options.replacements=\"base64\"]\n * @param {Archive} [options.archive]\n * @param {method} [options.resolver]\n */\nclass Resources {\n\tconstructor(manifest, options) {\n\t\tthis.settings = {\n\t\t\treplacements: (options && options.replacements) || \"base64\",\n\t\t\tarchive: (options && options.archive),\n\t\t\tresolver: (options && options.resolver),\n\t\t\trequest: (options && options.request)\n\t\t};\n\n\t\tthis.process(manifest);\n\t}\n\n\t/**\n\t * Process resources\n\t * @param {Manifest} manifest\n\t */\n\tprocess(manifest){\n\t\tthis.manifest = manifest;\n\t\tthis.resources = Object.keys(manifest).\n\t\t\tmap(function (key){\n\t\t\t\treturn manifest[key];\n\t\t\t});\n\n\t\tthis.replacementUrls = [];\n\n\t\tthis.html = [];\n\t\tthis.assets = [];\n\t\tthis.css = [];\n\n\t\tthis.urls = [];\n\t\tthis.cssUrls = [];\n\n\t\tthis.split();\n\t\tthis.splitUrls();\n\t}\n\n\t/**\n\t * Split resources by type\n\t * @private\n\t */\n\tsplit(){\n\n\t\t// HTML\n\t\tthis.html = this.resources.\n\t\t\tfilter(function (item){\n\t\t\t\tif (item.type === \"application/xhtml+xml\" ||\n\t\t\t\t\t\titem.type === \"text/html\") {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t});\n\n\t\t// Exclude HTML\n\t\tthis.assets = this.resources.\n\t\t\tfilter(function (item){\n\t\t\t\tif (item.type !== \"application/xhtml+xml\" &&\n\t\t\t\t\t\titem.type !== \"text/html\") {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t});\n\n\t\t// Only CSS\n\t\tthis.css = this.resources.\n\t\t\tfilter(function (item){\n\t\t\t\tif (item.type === \"text/css\") {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t});\n\t}\n\n\t/**\n\t * Convert split resources into Urls\n\t * @private\n\t */\n\tsplitUrls(){\n\n\t\t// All Assets Urls\n\t\tthis.urls = this.assets.\n\t\t\tmap(function(item) {\n\t\t\t\treturn item.href;\n\t\t\t}.bind(this));\n\n\t\t// Css Urls\n\t\tthis.cssUrls = this.css.map(function(item) {\n\t\t\treturn item.href;\n\t\t});\n\n\t}\n\n\t/**\n\t * Create a url to a resource\n\t * @param {string} url\n\t * @return {Promise<string>} Promise resolves with url string\n\t */\n\tcreateUrl (url) {\n\t\tvar parsedUrl = new Url(url);\n\t\tvar mimeType = mime.lookup(parsedUrl.filename);\n\n\t\tif (this.settings.archive) {\n\t\t\treturn this.settings.archive.createUrl(url, {\"base64\": (this.settings.replacements === \"base64\")});\n\t\t} else {\n\t\t\tif (this.settings.replacements === \"base64\") {\n\t\t\t\treturn this.settings.request(url, 'blob')\n\t\t\t\t\t.then((blob) => {\n\t\t\t\t\t\treturn blob2base64(blob);\n\t\t\t\t\t})\n\t\t\t\t\t.then((blob) => {\n\t\t\t\t\t\treturn createBase64Url(blob, mimeType);\n\t\t\t\t\t});\n\t\t\t} else {\n\t\t\t\treturn this.settings.request(url, 'blob').then((blob) => {\n\t\t\t\t\treturn createBlobUrl(blob, mimeType);\n\t\t\t\t})\n\t\t\t}\n\t\t}\n\t}\n\n\t/**\n\t * Create blob urls for all the assets\n\t * @return {Promise}         returns replacement urls\n\t */\n\treplacements(){\n\t\tif (this.settings.replacements === \"none\") {\n\t\t\treturn new Promise(function(resolve) {\n\t\t\t\tresolve(this.urls);\n\t\t\t}.bind(this));\n\t\t}\n\n\t\tvar replacements = this.urls.map( (url) => {\n\t\t\t\tvar absolute = this.settings.resolver(url);\n\n\t\t\t\treturn this.createUrl(absolute).\n\t\t\t\t\tcatch((err) => {\n\t\t\t\t\t\tconsole.error(err);\n\t\t\t\t\t\treturn null;\n\t\t\t\t\t});\n\t\t\t});\n\n\t\treturn Promise.all(replacements)\n\t\t\t.then( (replacementUrls) => {\n\t\t\t\tthis.replacementUrls = replacementUrls.filter((url) => {\n\t\t\t\t\treturn (typeof(url) === \"string\");\n\t\t\t\t});\n\t\t\t\treturn replacementUrls;\n\t\t\t});\n\t}\n\n\t/**\n\t * Replace URLs in CSS resources\n\t * @private\n\t * @param  {Archive} [archive]\n\t * @param  {method} [resolver]\n\t * @return {Promise}\n\t */\n\treplaceCss(archive, resolver){\n\t\tvar replaced = [];\n\t\tarchive = archive || this.settings.archive;\n\t\tresolver = resolver || this.settings.resolver;\n\t\tthis.cssUrls.forEach(function(href) {\n\t\t\tvar replacement = this.createCssFile(href, archive, resolver)\n\t\t\t\t.then(function (replacementUrl) {\n\t\t\t\t\t// switch the url in the replacementUrls\n\t\t\t\t\tvar indexInUrls = this.urls.indexOf(href);\n\t\t\t\t\tif (indexInUrls > -1) {\n\t\t\t\t\t\tthis.replacementUrls[indexInUrls] = replacementUrl;\n\t\t\t\t\t}\n\t\t\t\t}.bind(this))\n\n\n\t\t\treplaced.push(replacement);\n\t\t}.bind(this));\n\t\treturn Promise.all(replaced);\n\t}\n\n\t/**\n\t * Create a new CSS file with the replaced URLs\n\t * @private\n\t * @param  {string} href the original css file\n\t * @return {Promise}  returns a BlobUrl to the new CSS file or a data url\n\t */\n\tcreateCssFile(href){\n\t\tvar newUrl;\n\n\t\tif (path.isAbsolute(href)) {\n\t\t\treturn new Promise(function(resolve){\n\t\t\t\tresolve();\n\t\t\t});\n\t\t}\n\n\t\tvar absolute = this.settings.resolver(href);\n\n\t\t// Get the text of the css file from the archive\n\t\tvar textResponse;\n\n\t\tif (this.settings.archive) {\n\t\t\ttextResponse = this.settings.archive.getText(absolute);\n\t\t} else {\n\t\t\ttextResponse = this.settings.request(absolute, \"text\");\n\t\t}\n\n\t\t// Get asset links relative to css file\n\t\tvar relUrls = this.urls.map( (assetHref) => {\n\t\t\tvar resolved = this.settings.resolver(assetHref);\n\t\t\tvar relative = new Path(absolute).relative(resolved);\n\n\t\t\treturn relative;\n\t\t});\n\n\t\tif (!textResponse) {\n\t\t\t// file not found, don't replace\n\t\t\treturn new Promise(function(resolve){\n\t\t\t\tresolve();\n\t\t\t});\n\t\t}\n\n\t\treturn textResponse.then( (text) => {\n\t\t\t// Replacements in the css text\n\t\t\ttext = substitute(text, relUrls, this.replacementUrls);\n\n\t\t\t// Get the new url\n\t\t\tif (this.settings.replacements === \"base64\") {\n\t\t\t\tnewUrl = createBase64Url(text, \"text/css\");\n\t\t\t} else {\n\t\t\t\tnewUrl = createBlobUrl(text, \"text/css\");\n\t\t\t}\n\n\t\t\treturn newUrl;\n\t\t}, (err) => {\n\t\t\t// handle response errors\n\t\t\treturn new Promise(function(resolve){\n\t\t\t\tresolve();\n\t\t\t});\n\t\t});\n\n\t}\n\n\t/**\n\t * Resolve all resources URLs relative to an absolute URL\n\t * @param  {string} absolute to be resolved to\n\t * @param  {resolver} [resolver]\n\t * @return {string[]} array with relative Urls\n\t */\n\trelativeTo(absolute, resolver){\n\t\tresolver = resolver || this.settings.resolver;\n\n\t\t// Get Urls relative to current sections\n\t\treturn this.urls.\n\t\t\tmap(function(href) {\n\t\t\t\tvar resolved = resolver(href);\n\t\t\t\tvar relative = new Path(absolute).relative(resolved);\n\t\t\t\treturn relative;\n\t\t\t}.bind(this));\n\t}\n\n\t/**\n\t * Get a URL for a resource\n\t * @param  {string} path\n\t * @return {string} url\n\t */\n\tget(path) {\n\t\tvar indexInUrls = this.urls.indexOf(path);\n\t\tif (indexInUrls === -1) {\n\t\t\treturn;\n\t\t}\n\t\tif (this.replacementUrls.length) {\n\t\t\treturn new Promise(function(resolve, reject) {\n\t\t\t\tresolve(this.replacementUrls[indexInUrls]);\n\t\t\t}.bind(this));\n\t\t} else {\n\t\t\treturn this.createUrl(path);\n\t\t}\n\t}\n\n\t/**\n\t * Substitute urls in content, with replacements,\n\t * relative to a url if provided\n\t * @param  {string} content\n\t * @param  {string} [url]   url to resolve to\n\t * @return {string}         content with urls substituted\n\t */\n\tsubstitute(content, url) {\n\t\tvar relUrls;\n\t\tif (url) {\n\t\t\trelUrls = this.relativeTo(url);\n\t\t} else {\n\t\t\trelUrls = this.urls;\n\t\t}\n\t\treturn substitute(content, relUrls, this.replacementUrls);\n\t}\n\n\tdestroy() {\n\t\tthis.settings = undefined;\n\t\tthis.manifest = undefined;\n\t\tthis.resources = undefined;\n\t\tthis.replacementUrls = undefined;\n\t\tthis.html = undefined;\n\t\tthis.assets = undefined;\n\t\tthis.css = undefined;\n\n\t\tthis.urls = undefined;\n\t\tthis.cssUrls = undefined;\n\t}\n}\n\nexport default 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