时间：2021-07-01 10:21:17 帮助过：13人阅读
(function(){ /** * util-request.js - The utilities for requesting script and style files * ref: tests/research/load-js-css/test.html */ function isType(type) { return function(obj) { return {}.toString.call(obj) == "[object " + type + "]" } } var isString = isType("String") var doc = document var head = doc.head || doc.getElementsByTagName("head")[0] || doc.documentElement var baseElement = head.getElementsByTagName("base")[0] var IS_CSS_RE = /\.css(?:\?|$)/i var IS_LESS_RE = /\.less(?:\?|$)/i var currentlyAddingScript var interactiveScript// `onload` event is not supported in WebKit < 535.23 and Firefox < 9.0// ref:// - https://bugs.webkit.org/show_activity.cgi?id=38995// - https://bugzilla.mozilla.org/show_bug.cgi?id=185236// - https://developer.mozilla.org/en/HTML/Element/link#Stylesheet_load_events var isOldWebKit = +navigator.userAgent .replace(/.*(?:AppleWebKit|AndroidWebKit)\/?(\d+).*/i, "$1") < 536 function isFunction(obj) { return {}.toString.call(obj) == "[object Function]" } function request(url, callback, charset, crossorigin) { var isLESS = IS_LESS_RE.test(url) var isCSS = isLESS?isLESS:IS_CSS_RE.test(url) var node = doc.createElement((isCSS || isLESS) ? "link" : "script") if (charset) { var cs = isFunction(charset) ? charset(url) : charset if (cs) { node.charset = cs } } if (crossorigin !== void 0) { node.setAttribute("crossorigin", crossorigin) } addOnload(node, callback, isCSS, url) if (isCSS) { node.rel = "stylesheet" node.href = url } else { node.async = true node.src = url } if(url.indexOf("aaa.less.js") !=-1){ url = url; } if(isLESS){ node.rel="stylesheet/less" } // For some cache cases in IE 6-8, the script executes IMMEDIATELY after // the end of the insert execution, so use `currentlyAddingScript` to // hold current node, for deriving url in `define` call currentlyAddingScript = node // ref: #185 & http://dev.jquery.com/ticket/2709 baseElement ? head.insertBefore(node, baseElement) : head.appendChild(node) currentlyAddingScript = null } function addOnload(node, callback, isCSS, url) { var supportOnload = "onload" in node // for Old WebKit and Old Firefox if (isCSS && (isOldWebKit || !supportOnload)) { setTimeout(function() { pollCss(node, callback) }, 1) // Begin after node insertion return } if (supportOnload) { node.onload = onload node.onerror = function() { seajs.emit("error", { uri: url, node: node }) onload() } } else { node.onreadystatechange = function() { if (/loaded|complete/.test(node.readyState)) { onload() } } } function onload() { // Ensure only run once and handle memory leak in IE node.onload = node.onerror = node.onreadystatechange = null // Remove the script to reduce memory leak if (!isCSS && !seajs.data.debug) { head.removeChild(node) } // Dereference the node node = null callback() } } function pollCss(node, callback) { var sheet = node.sheet var isLoaded // for WebKit < 536 if (isOldWebKit) { if (sheet) { isLoaded = true } } // for Firefox < 9.0 else if (sheet) { try { if (sheet.cssRules) { isLoaded = true } } catch (ex) { // The value of `ex.name` is changed from "NS_ERROR_DOM_SECURITY_ERR" // to "SecurityError" since Firefox 13.0. But Firefox is less than 9.0 // in here, So it is ok to just rely on "NS_ERROR_DOM_SECURITY_ERR" if (ex.name === "NS_ERROR_DOM_SECURITY_ERR") { isLoaded = true } } } setTimeout(function() { if (isLoaded) { // Place callback here to give time for style rendering callback() } else { pollCss(node, callback) } }, 20) }// For Developers seajs.request = request /** * util-path.js - The utilities for operating path such as id, uri */ var data = seajs.data var DIRNAME_RE = /[^?#]*\// var DOT_RE = /\/\.\//g var DOUBLE_DOT_RE = /\/[^/]+\/\.\.\// var MULTI_SLASH_RE = /([^:/])\/+\//g// Extract the directory portion of a path// dirname("a/b/c.js?t=123#xx/zz") ==> "a/b/"// ref: http://jsperf.com/regex-vs-split/2 function dirname(path) { return path.match(DIRNAME_RE)[0] }// Canonicalize a path// realpath("http://test.com/a//./b/../c") ==> "http://test.com/a/c" function realpath(path) { // /a/b/./c/./d ==> /a/b/c/d path = path.replace(DOT_RE, "/") /* @author wh1100717 a//b/c ==> a/b/c a///b/////c ==> a/b/c DOUBLE_DOT_RE matches a/b/c//../d path correctly only if replace // with / first */ path = path.replace(MULTI_SLASH_RE, "$1/") // a/b/c/../../d ==> a/b/../d ==> a/d while (path.match(DOUBLE_DOT_RE)) { path = path.replace(DOUBLE_DOT_RE, "/") } return path }// Normalize an id// normalize("path/to/a") ==> "path/to/a.js"// NOTICE: substring is faster than negative slice and RegExp function normalize(path) { var last = path.length - 1 var lastC = path.charAt(last) // If the uri ends with `#`, just return it without '#' if (lastC === "#") { return path.substring(0, last) } return (path.substring(last - 2) === ".js" || path.indexOf("?") > 0 || path.substring(last - 3) === ".css" || path.substring(last - 4) === ".less" || lastC === "/") ? path : path + ".js" } var PATHS_RE = /^([^/:]+)(\/.+)$/ var VARS_RE = /{([^{]+)}/g function parseAlias(id) { var alias = data.alias return alias && isString(alias[id]) ? alias[id] : id } function parsePaths(id) { var paths = data.paths var m if (paths && (m = id.match(PATHS_RE)) && isString(paths[m[1]])) { id = paths[m[1]] + m[2] } return id } function parseVars(id) { var vars = data.vars if (vars && id.indexOf("{") > -1) { id = id.replace(VARS_RE, function(m, key) { return isString(vars[key]) ? vars[key] : m }) } return id } function parseMap(uri) { var map = data.map var ret = uri if (map) { for (var i = 0, len = map.length; i < len; i++) { var rule = map[i] ret = isFunction(rule) ? (rule(uri) || uri) : uri.replace(rule[0], rule[1]) // Only apply the first matched rule if (ret !== uri) break } } return ret } var ABSOLUTE_RE = /^\/\/.|:\// var ROOT_DIR_RE = /^.*?\/\/.*?\// function addBase(id, refUri) { var ret var first = id.charAt(0) // Absolute if (ABSOLUTE_RE.test(id)) { ret = id } // Relative else if (first === ".") { ret = realpath((refUri ? dirname(refUri) : data.cwd) + id) } // Root else if (first === "/") { var m = data.cwd.match(ROOT_DIR_RE) ret = m ? m[0] + id.substring(1) : id } // Top-level else { ret = data.base + id } // Add default protocol when uri begins with "//" if (ret.indexOf("//") === 0) { ret = location.protocol + ret } return ret } function id2Uri(id, refUri) { if (!id) return "" id = parseAlias(id) id = parsePaths(id) id = parseVars(id) id = normalize(id) var uri = addBase(id, refUri) uri = parseMap(uri) return uri } var doc = document var cwd = (!location.href || location.href.indexOf('about:') === 0) ? '' : dirname(location.href) var scripts = doc.scripts// Recommend to add `seajsnode` id for the `sea.js` script element var loaderScript = doc.getElementById("seajsnode") || scripts[scripts.length - 1]// When `sea.js` is inline, set loaderDir to current working directory var loaderDir = dirname(getScriptAbsoluteSrc(loaderScript) || cwd) function getScriptAbsoluteSrc(node) { return node.hasAttribute ? // non-IE6/7 node.src : // see http://msdn.microsoft.com/en-us/library/ms536429(VS.85).aspx node.getAttribute("src", 4) }// For Developers seajs.resolve = id2Uri define("seajs/seajs-css/1.0.5/seajs-css-debug", [], {});})();