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- (function(global, undefined) {
- if (global.seajs) {
- return
- }
- var seajs = global.seajs = {
-
- version: "2.3.0"
- }
- var data = seajs.data = {}
- function isType(type) {
- return function(obj) {
- return {}.toString.call(obj) == "[object " + type + "]"
- }
- }
- var isObject = isType("Object")
- var isString = isType("String")
- var isArray = Array.isArray || isType("Array")
- var isFunction = isType("Function")
- var _cid = 0
- function cid() {
- return _cid++
- }
- var events = data.events = {}
- seajs.on = function(name, callback) {
- var list = events[name] || (events[name] = [])
- list.push(callback)
- return seajs
- }
- seajs.off = function(name, callback) {
-
- if (!(name || callback)) {
- events = data.events = {}
- return seajs
- }
- var list = events[name]
- if (list) {
- if (callback) {
- for (var i = list.length - 1; i >= 0; i--) {
- if (list[i] === callback) {
- list.splice(i, 1)
- }
- }
- }
- else {
- delete events[name]
- }
- }
- return seajs
- }
- var emit = seajs.emit = function(name, data) {
- var list = events[name], fn
- if (list) {
-
- list = list.slice()
-
- for(var i = 0, len = list.length; i < len; i++) {
- list[i](data)
- }
- }
- return seajs
- }
- var DIRNAME_RE = /[^?#]*\//
- var DOT_RE = /\/\.\//g
- var DOUBLE_DOT_RE = /\/[^/]+\/\.\.\//
- var MULTI_SLASH_RE = /([^:/])\/+\//g
- function dirname(path) {
- return path.match(DIRNAME_RE)[0]
- }
- function realpath(path) {
-
- path = path.replace(DOT_RE, "/")
-
- path = path.replace(MULTI_SLASH_RE, "$1/")
-
- while (path.match(DOUBLE_DOT_RE)) {
- path = path.replace(DOUBLE_DOT_RE, "/")
- }
- return path
- }
- function normalize(path) {
- var last = path.length - 1
- var lastC = path.charAt(last)
-
- if (lastC === "#") {
- return path.substring(0, last)
- }
- return (path.substring(last - 2) === ".js" ||
- path.indexOf("?") > 0 ||
- lastC === "/") ? path : path + ".js"
- }
- var PATHS_RE = /^([^/:]+)(\/.+)$/
- 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])
-
- if (ret !== uri) break
- }
- }
- return ret
- }
- var ABSOLUTE_RE = /^\/\/.|:\//
- var ROOT_DIR_RE = /^.*?\/\/.*?\//
- function addBase(id, refUri) {
- var ret
- var first = id.charAt(0)
-
- if (ABSOLUTE_RE.test(id)) {
- ret = id
- }
-
- else if (first === ".") {
- ret = realpath((refUri ? dirname(refUri) : data.cwd) + id)
- }
-
- else if (first === "/") {
- var m = data.cwd.match(ROOT_DIR_RE)
- ret = m ? m[0] + id.substring(1) : id
- }
-
- else {
- ret = data.base + id
- }
-
- 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
- var loaderScript = doc.getElementById("seajsnode") ||
- scripts[scripts.length - 1]
- var loaderDir = dirname(getScriptAbsoluteSrc(loaderScript) || cwd)
- function getScriptAbsoluteSrc(node) {
- return node.hasAttribute ?
- node.src :
-
- node.getAttribute("src", 4)
- }
- seajs.resolve = id2Uri
- var head = doc.head || doc.getElementsByTagName("head")[0] || doc.documentElement
- var baseElement = head.getElementsByTagName("base")[0]
- var currentlyAddingScript
- var interactiveScript
- function request(url, callback, charset) {
- var node = doc.createElement("script")
- if (charset) {
- var cs = isFunction(charset) ? charset(url) : charset
- if (cs) {
- node.charset = cs
- }
- }
- addOnload(node, callback, url)
- node.async = true
- node.src = url
-
-
-
- currentlyAddingScript = node
-
- baseElement ?
- head.insertBefore(node, baseElement) :
- head.appendChild(node)
- currentlyAddingScript = null
- }
- function addOnload(node, callback, url) {
- var supportOnload = "onload" in node
- if (supportOnload) {
- node.onload = onload
- node.onerror = function() {
- emit("error", { uri: url, node: node })
- onload()
- }
- }
- else {
- node.onreadystatechange = function() {
- if (/loaded|complete/.test(node.readyState)) {
- onload()
- }
- }
- }
- function onload() {
-
- node.onload = node.onerror = node.onreadystatechange = null
-
- if (!data.debug) {
- head.removeChild(node)
- }
-
- node = null
- callback()
- }
- }
- function getCurrentScript() {
- if (currentlyAddingScript) {
- return currentlyAddingScript
- }
-
-
-
-
-
- if (interactiveScript && interactiveScript.readyState === "interactive") {
- return interactiveScript
- }
- var scripts = head.getElementsByTagName("script")
- for (var i = scripts.length - 1; i >= 0; i--) {
- var script = scripts[i]
- if (script.readyState === "interactive") {
- interactiveScript = script
- return interactiveScript
- }
- }
- }
- seajs.request = request
- var REQUIRE_RE = /"(?:\\"|[^"])*"|'(?:\\'|[^'])*'|\/\*[\S\s]*?\*\/|\/(?:\\\/|[^\/\r\n])+\/(?=[^\/])|\/\/.*|\.\s*require|(?:^|[^$])\brequire\s*\(\s*(["'])(.+?)\1\s*\)/g
- var SLASH_RE = /\\\\/g
- function parseDependencies(code) {
- var ret = []
- code.replace(SLASH_RE, "")
- .replace(REQUIRE_RE, function(m, m1, m2) {
- if (m2) {
- ret.push(m2)
- }
- })
- return ret
- }
- var cachedMods = seajs.cache = {}
- var anonymousMeta
- var fetchingList = {}
- var fetchedList = {}
- var callbackList = {}
- var STATUS = Module.STATUS = {
-
- FETCHING: 1,
-
- SAVED: 2,
-
- LOADING: 3,
-
- LOADED: 4,
-
- EXECUTING: 5,
-
- EXECUTED: 6
- }
- function Module(uri, deps) {
- this.uri = uri
- this.dependencies = deps || []
- this.exports = null
- this.status = 0
-
- this._waitings = {}
-
- this._remain = 0
- }
- Module.prototype.resolve = function() {
- var mod = this
- var ids = mod.dependencies
- var uris = []
- for (var i = 0, len = ids.length; i < len; i++) {
- uris[i] = Module.resolve(ids[i], mod.uri)
- }
- return uris
- }
- Module.prototype.load = function() {
- var mod = this
-
- if (mod.status >= STATUS.LOADING) {
- return
- }
- mod.status = STATUS.LOADING
-
- var uris = mod.resolve()
- emit("load", uris)
- var len = mod._remain = uris.length
- var m
-
- for (var i = 0; i < len; i++) {
- m = Module.get(uris[i])
- if (m.status < STATUS.LOADED) {
-
- m._waitings[mod.uri] = (m._waitings[mod.uri] || 0) + 1
- }
- else {
- mod._remain--
- }
- }
- if (mod._remain === 0) {
- mod.onload()
- return
- }
-
- var requestCache = {}
- for (i = 0; i < len; i++) {
- m = cachedMods[uris[i]]
- if (m.status < STATUS.FETCHING) {
- m.fetch(requestCache)
- }
- else if (m.status === STATUS.SAVED) {
- m.load()
- }
- }
-
- for (var requestUri in requestCache) {
- if (requestCache.hasOwnProperty(requestUri)) {
- requestCache[requestUri]()
- }
- }
- }
- Module.prototype.onload = function() {
- var mod = this
- mod.status = STATUS.LOADED
- if (mod.callback) {
- mod.callback()
- }
-
- var waitings = mod._waitings
- var uri, m
- for (uri in waitings) {
- if (waitings.hasOwnProperty(uri)) {
- m = cachedMods[uri]
- m._remain -= waitings[uri]
- if (m._remain === 0) {
- m.onload()
- }
- }
- }
-
- delete mod._waitings
- delete mod._remain
- }
- Module.prototype.fetch = function(requestCache) {
- var mod = this
- var uri = mod.uri
- mod.status = STATUS.FETCHING
-
- var emitData = { uri: uri }
- emit("fetch", emitData)
- var requestUri = emitData.requestUri || uri
-
- if (!requestUri || fetchedList[requestUri]) {
- mod.load()
- return
- }
- if (fetchingList[requestUri]) {
- callbackList[requestUri].push(mod)
- return
- }
- fetchingList[requestUri] = true
- callbackList[requestUri] = [mod]
-
- emit("request", emitData = {
- uri: uri,
- requestUri: requestUri,
- onRequest: onRequest,
- charset: data.charset
- })
- if (!emitData.requested) {
- requestCache ?
- requestCache[emitData.requestUri] = sendRequest :
- sendRequest()
- }
- function sendRequest() {
- seajs.request(emitData.requestUri, emitData.onRequest, emitData.charset)
- }
- function onRequest() {
- delete fetchingList[requestUri]
- fetchedList[requestUri] = true
-
- if (anonymousMeta) {
- Module.save(uri, anonymousMeta)
- anonymousMeta = null
- }
-
- var m, mods = callbackList[requestUri]
- delete callbackList[requestUri]
- while ((m = mods.shift())) m.load()
- }
- }
- Module.prototype.exec = function () {
- var mod = this
-
-
-
- if (mod.status >= STATUS.EXECUTING) {
- return mod.exports
- }
- mod.status = STATUS.EXECUTING
-
- var uri = mod.uri
- function require(id) {
- return Module.get(require.resolve(id)).exec()
- }
- require.resolve = function(id) {
- return Module.resolve(id, uri)
- }
- require.async = function(ids, callback) {
- Module.use(ids, callback, uri + "_async_" + cid())
- return require
- }
-
- var factory = mod.factory
- var exports = isFunction(factory) ?
- factory(require, mod.exports = {}, mod) :
- factory
- if (exports === undefined) {
- exports = mod.exports
- }
-
- delete mod.factory
- mod.exports = exports
- mod.status = STATUS.EXECUTED
-
- emit("exec", mod)
- return exports
- }
- Module.resolve = function(id, refUri) {
-
- var emitData = { id: id, refUri: refUri }
- emit("resolve", emitData)
- return emitData.uri || seajs.resolve(emitData.id, refUri)
- }
- Module.define = function (id, deps, factory) {
- var argsLen = arguments.length
-
- if (argsLen === 1) {
- factory = id
- id = undefined
- }
- else if (argsLen === 2) {
- factory = deps
-
- if (isArray(id)) {
- deps = id
- id = undefined
- }
-
- else {
- deps = undefined
- }
- }
-
- if (!isArray(deps) && isFunction(factory)) {
- deps = parseDependencies(factory.toString())
- }
- var meta = {
- id: id,
- uri: Module.resolve(id),
- deps: deps,
- factory: factory
- }
-
- if (!meta.uri && doc.attachEvent) {
- var script = getCurrentScript()
- if (script) {
- meta.uri = script.src
- }
-
-
- }
-
- emit("define", meta)
- meta.uri ? Module.save(meta.uri, meta) :
-
- anonymousMeta = meta
- }
- Module.save = function(uri, meta) {
- var mod = Module.get(uri)
-
- if (mod.status < STATUS.SAVED) {
- mod.id = meta.id || uri
- mod.dependencies = meta.deps || []
- mod.factory = meta.factory
- mod.status = STATUS.SAVED
- emit("save", mod)
- }
- }
- Module.get = function(uri, deps) {
- return cachedMods[uri] || (cachedMods[uri] = new Module(uri, deps))
- }
- Module.use = function (ids, callback, uri) {
- var mod = Module.get(uri, isArray(ids) ? ids : [ids])
- mod.callback = function() {
- var exports = []
- var uris = mod.resolve()
- for (var i = 0, len = uris.length; i < len; i++) {
- exports[i] = cachedMods[uris[i]].exec()
- }
- if (callback) {
- callback.apply(global, exports)
- }
- delete mod.callback
- }
- mod.load()
- }
- seajs.use = function(ids, callback) {
- Module.use(ids, callback, data.cwd + "_use_" + cid())
- return seajs
- }
- Module.define.cmd = {}
- global.define = Module.define
- seajs.Module = Module
- data.fetchedList = fetchedList
- data.cid = cid
- seajs.require = function(id) {
- var mod = Module.get(Module.resolve(id))
- if (mod.status < STATUS.EXECUTING) {
- mod.onload()
- mod.exec()
- }
- return mod.exports
- }
- data.base = loaderDir
- data.dir = loaderDir
- data.cwd = cwd
- data.charset = "utf-8"
- seajs.config = function(configData) {
- for (var key in configData) {
- var curr = configData[key]
- var prev = data[key]
-
- if (prev && isObject(prev)) {
- for (var k in curr) {
- prev[k] = curr[k]
- }
- }
- else {
-
- if (isArray(prev)) {
- curr = prev.concat(curr)
- }
-
- else if (key === "base") {
-
- if (curr.slice(-1) !== "/") {
- curr += "/"
- }
- curr = addBase(curr)
- }
-
- data[key] = curr
- }
- }
- emit("config", configData)
- return seajs
- }
- })(this);
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