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258
my-app/node_modules/less/lib/less-browser/index.js
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Executable file
258
my-app/node_modules/less/lib/less-browser/index.js
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var tslib_1 = require("tslib");
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//
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// index.js
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// Should expose the additional browser functions on to the less object
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//
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var utils_1 = require("./utils");
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var less_1 = tslib_1.__importDefault(require("../less"));
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var browser_1 = tslib_1.__importDefault(require("./browser"));
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var file_manager_1 = tslib_1.__importDefault(require("./file-manager"));
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var plugin_loader_1 = tslib_1.__importDefault(require("./plugin-loader"));
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var log_listener_1 = tslib_1.__importDefault(require("./log-listener"));
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var error_reporting_1 = tslib_1.__importDefault(require("./error-reporting"));
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var cache_1 = tslib_1.__importDefault(require("./cache"));
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var image_size_1 = tslib_1.__importDefault(require("./image-size"));
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exports.default = (function (window, options) {
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var document = window.document;
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var less = less_1.default();
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less.options = options;
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var environment = less.environment;
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var FileManager = file_manager_1.default(options, less.logger);
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var fileManager = new FileManager();
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environment.addFileManager(fileManager);
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less.FileManager = FileManager;
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less.PluginLoader = plugin_loader_1.default;
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log_listener_1.default(less, options);
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var errors = error_reporting_1.default(window, less, options);
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var cache = less.cache = options.cache || cache_1.default(window, options, less.logger);
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image_size_1.default(less.environment);
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// Setup user functions - Deprecate?
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if (options.functions) {
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less.functions.functionRegistry.addMultiple(options.functions);
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}
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var typePattern = /^text\/(x-)?less$/;
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function clone(obj) {
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var cloned = {};
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for (var prop in obj) {
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if (Object.prototype.hasOwnProperty.call(obj, prop)) {
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cloned[prop] = obj[prop];
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}
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}
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return cloned;
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}
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// only really needed for phantom
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function bind(func, thisArg) {
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var curryArgs = Array.prototype.slice.call(arguments, 2);
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return function () {
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var args = curryArgs.concat(Array.prototype.slice.call(arguments, 0));
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return func.apply(thisArg, args);
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};
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}
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function loadStyles(modifyVars) {
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var styles = document.getElementsByTagName('style');
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var style;
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for (var i = 0; i < styles.length; i++) {
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style = styles[i];
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if (style.type.match(typePattern)) {
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var instanceOptions = clone(options);
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instanceOptions.modifyVars = modifyVars;
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var lessText = style.innerHTML || '';
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instanceOptions.filename = document.location.href.replace(/#.*$/, '');
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/* jshint loopfunc:true */
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// use closure to store current style
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less.render(lessText, instanceOptions, bind(function (style, e, result) {
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if (e) {
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errors.add(e, 'inline');
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}
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else {
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style.type = 'text/css';
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if (style.styleSheet) {
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style.styleSheet.cssText = result.css;
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}
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else {
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style.innerHTML = result.css;
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}
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}
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}, null, style));
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}
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}
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}
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function loadStyleSheet(sheet, callback, reload, remaining, modifyVars) {
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var instanceOptions = clone(options);
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utils_1.addDataAttr(instanceOptions, sheet);
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instanceOptions.mime = sheet.type;
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if (modifyVars) {
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instanceOptions.modifyVars = modifyVars;
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}
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function loadInitialFileCallback(loadedFile) {
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var data = loadedFile.contents;
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var path = loadedFile.filename;
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var webInfo = loadedFile.webInfo;
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var newFileInfo = {
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currentDirectory: fileManager.getPath(path),
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filename: path,
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rootFilename: path,
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rewriteUrls: instanceOptions.rewriteUrls
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};
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newFileInfo.entryPath = newFileInfo.currentDirectory;
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newFileInfo.rootpath = instanceOptions.rootpath || newFileInfo.currentDirectory;
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if (webInfo) {
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webInfo.remaining = remaining;
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var css = cache.getCSS(path, webInfo, instanceOptions.modifyVars);
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if (!reload && css) {
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webInfo.local = true;
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callback(null, css, data, sheet, webInfo, path);
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return;
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}
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}
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// TODO add tests around how this behaves when reloading
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errors.remove(path);
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instanceOptions.rootFileInfo = newFileInfo;
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less.render(data, instanceOptions, function (e, result) {
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if (e) {
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e.href = path;
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callback(e);
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}
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else {
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cache.setCSS(sheet.href, webInfo.lastModified, instanceOptions.modifyVars, result.css);
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callback(null, result.css, data, sheet, webInfo, path);
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}
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});
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}
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fileManager.loadFile(sheet.href, null, instanceOptions, environment)
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.then(function (loadedFile) {
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loadInitialFileCallback(loadedFile);
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}).catch(function (err) {
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console.log(err);
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callback(err);
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});
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}
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function loadStyleSheets(callback, reload, modifyVars) {
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for (var i = 0; i < less.sheets.length; i++) {
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loadStyleSheet(less.sheets[i], callback, reload, less.sheets.length - (i + 1), modifyVars);
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}
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}
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function initRunningMode() {
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if (less.env === 'development') {
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less.watchTimer = setInterval(function () {
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if (less.watchMode) {
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fileManager.clearFileCache();
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/**
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* @todo remove when this is typed with JSDoc
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*/
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// eslint-disable-next-line no-unused-vars
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loadStyleSheets(function (e, css, _, sheet, webInfo) {
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if (e) {
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errors.add(e, e.href || sheet.href);
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}
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else if (css) {
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browser_1.default.createCSS(window.document, css, sheet);
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}
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});
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}
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}, options.poll);
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}
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}
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//
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// Watch mode
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//
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less.watch = function () {
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if (!less.watchMode) {
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less.env = 'development';
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initRunningMode();
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}
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this.watchMode = true;
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return true;
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};
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less.unwatch = function () { clearInterval(less.watchTimer); this.watchMode = false; return false; };
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//
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// Synchronously get all <link> tags with the 'rel' attribute set to
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// "stylesheet/less".
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//
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less.registerStylesheetsImmediately = function () {
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var links = document.getElementsByTagName('link');
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less.sheets = [];
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for (var i = 0; i < links.length; i++) {
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if (links[i].rel === 'stylesheet/less' || (links[i].rel.match(/stylesheet/) &&
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(links[i].type.match(typePattern)))) {
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less.sheets.push(links[i]);
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}
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}
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};
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//
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// Asynchronously get all <link> tags with the 'rel' attribute set to
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// "stylesheet/less", returning a Promise.
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//
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less.registerStylesheets = function () { return new Promise(function (resolve) {
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less.registerStylesheetsImmediately();
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resolve();
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}); };
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//
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// With this function, it's possible to alter variables and re-render
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// CSS without reloading less-files
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//
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less.modifyVars = function (record) { return less.refresh(true, record, false); };
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less.refresh = function (reload, modifyVars, clearFileCache) {
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if ((reload || clearFileCache) && clearFileCache !== false) {
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fileManager.clearFileCache();
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}
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return new Promise(function (resolve, reject) {
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var startTime;
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var endTime;
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var totalMilliseconds;
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var remainingSheets;
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startTime = endTime = new Date();
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// Set counter for remaining unprocessed sheets
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remainingSheets = less.sheets.length;
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if (remainingSheets === 0) {
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endTime = new Date();
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totalMilliseconds = endTime - startTime;
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less.logger.info('Less has finished and no sheets were loaded.');
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resolve({
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startTime: startTime,
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endTime: endTime,
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totalMilliseconds: totalMilliseconds,
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sheets: less.sheets.length
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});
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}
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else {
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// Relies on less.sheets array, callback seems to be guaranteed to be called for every element of the array
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loadStyleSheets(function (e, css, _, sheet, webInfo) {
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if (e) {
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errors.add(e, e.href || sheet.href);
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reject(e);
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return;
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}
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if (webInfo.local) {
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less.logger.info("Loading " + sheet.href + " from cache.");
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}
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else {
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less.logger.info("Rendered " + sheet.href + " successfully.");
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}
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browser_1.default.createCSS(window.document, css, sheet);
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less.logger.info("CSS for " + sheet.href + " generated in " + (new Date() - endTime) + "ms");
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// Count completed sheet
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remainingSheets--;
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// Check if the last remaining sheet was processed and then call the promise
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if (remainingSheets === 0) {
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totalMilliseconds = new Date() - startTime;
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less.logger.info("Less has finished. CSS generated in " + totalMilliseconds + "ms");
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resolve({
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startTime: startTime,
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endTime: endTime,
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totalMilliseconds: totalMilliseconds,
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sheets: less.sheets.length
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});
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}
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endTime = new Date();
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}, reload, modifyVars);
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}
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loadStyles(modifyVars);
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});
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};
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less.refreshStyles = loadStyles;
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return less;
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});
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//# sourceMappingURL=index.js.map
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