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/*@flow*/
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/*:: const define = () => {}; */
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define([
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'/api/config'
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], function (Config) { /*::});module.exports = (function() {
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const Config = (undefined:any);
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*/
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var module = { exports: {} };
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var key = Config.requireConf.urlArgs;
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var localStorage = {};
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try {
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localStorage = window.localStorage || {};
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if (localStorage['LESS_CACHE'] !== key) {
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Object.keys(localStorage).forEach(function (k) {
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if (k.indexOf('LESS_CACHE|') !== 0) { return; }
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delete localStorage[k];
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});
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localStorage['LESS_CACHE'] = key;
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}
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} catch (e) {
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console.error(e);
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localStorage = {};
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}
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var cacheGet = function (k, cb) {
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if (window.cryptpadCache) { return void window.cryptpadCache.get(k, cb); }
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setTimeout(function () { cb(localStorage['LESS_CACHE|' + key + '|' + k]); });
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};
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var cachePut = function (k, v, cb) {
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if (window.cryptpadCache) { return void window.cryptpadCache.put(k, v, cb); }
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cb = cb || function () { };
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setTimeout(function () { localStorage['LESS_CACHE|' + key + '|' + k] = v; cb(); });
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};
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var fixURL = function (url, parent) {
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// data: blob: etc
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if (/^[a-zA-Z0-9]*:/.test(url)) { return url; }
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var ua = url.split('#');
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var mark = (ua[0].indexOf('?') !== -1) ? '&' : '?';
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ua[0] = ua[0] + mark + key;
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if (ua[0].indexOf(':') === -1 && ua[0].indexOf('/') && parent) {
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ua[0] = parent.replace(/\/[^\/]*$/, '/') + ua[0];
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}
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var out = ua.join('#');
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//console.log(url + " --> " + out);
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return out;
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};
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var inject = function (cssText, url) {
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var curStyle = document.createElement('style');
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curStyle.setAttribute('data-original-src', url);
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curStyle.type = 'text/css';
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curStyle.appendChild(document.createTextNode(cssText));
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if (!document.head) { throw new Error(); }
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document.head.appendChild(curStyle);
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};
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var fixAllURLs = function (source, parent) {
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var urlRegEx = /@import\s*("([^"]*)"|'([^']*)')|url\s*\(\s*(\s*"([^"]*)"|'([^']*)'|[^\)]*\s*)\s*\)/ig;
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var result, url;
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while (!!(result = urlRegEx.exec(source))) {
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url = result[3] || result[2] || result[5] || result[6] || result[4];
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var newUrl = fixURL(url, parent);
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var quoteLen = result[5] || result[6] ? 1 : 0;
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source = source.substr(0, urlRegEx.lastIndex - url.length - quoteLen - 1)
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+ newUrl + source.substr(urlRegEx.lastIndex - quoteLen - 1);
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urlRegEx.lastIndex = urlRegEx.lastIndex + (newUrl.length - url.length);
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}
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return source;
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};
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var loadCSS = function (url, cb) {
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var xhr = new window.XMLHttpRequest();
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xhr.open("GET", fixURL(url), true);
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xhr.responseType = 'text';
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xhr.onload = function () {
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if (/^4/.test('' + this.status)) { return cb("error loading " + url); }
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cb(undefined, xhr.response);
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};
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xhr.send(null);
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};
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var lessEngine;
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var getLessEngine = function (cb) {
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if (lessEngine) {
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cb(lessEngine);
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} else {
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require(['/bower_components/less/dist/less.min.js'], function (Less) {
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lessEngine = Less;
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var doXHR = lessEngine.FileManager.prototype.doXHR;
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lessEngine.FileManager.prototype.doXHR = function (url, type, callback, errback) {
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url = fixURL(url);
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//console.log("xhr: " + url);
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return doXHR(url, type, callback, errback);
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};
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cb(lessEngine);
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});
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}
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};
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var loadLess = function (url, cb) {
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getLessEngine(function (less) {
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less.render('@import (multiple) "' + url + '";', {}, function(err, css) {
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if (err) { return void cb(err); }
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cb(undefined, css.css);
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}, window.less);
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});
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};
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module.exports.load = function (url /*:string*/, cb /*:()=>void*/) {
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cacheGet(url, function (css) {
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if (css) {
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inject(css, url);
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return void cb();
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}
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console.log('CACHE MISS ' + url);
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((/\.less([\?\#].*)?$/.test(url)) ? loadLess : loadCSS)(url, function (err, css) {
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if (err) { console.error(err); }
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var output = fixAllURLs(css, url);
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cachePut(url, output);
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inject(output, url);
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cb();
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});
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});
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};
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return module.exports;
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})/*::()*/;
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