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But the end result, - * all paths that use this function should look normalized. - * NOTE: this method MODIFIES the input array. - * @param {Array} ary the array of path segments. - */ - function trimDots(ary) { - var i, part; - for (i = 0; ary[i]; i += 1) { - part = ary[i]; - if (part === '.') { - ary.splice(i, 1); - i -= 1; - } else if (part === '..') { - if (i === 1 && (ary[2] === '..' || ary[0] === '..')) { - //End of the line. Keep at least one non-dot - //path segment at the front so it can be mapped - //correctly to disk. Otherwise, there is likely - //no path mapping for a path starting with '..'. - //This can still fail, but catches the most reasonable - //uses of .. - break; - } else if (i > 0) { - ary.splice(i - 1, 2); - i -= 2; - } - } - } - } - - /** - * Given a relative module name, like ./something, normalize it to - * a real name that can be mapped to a path. - * @param {String} name the relative name - * @param {String} baseName a real name that the name arg is relative - * to. - * @param {Boolean} applyMap apply the map config to the value. Should - * only be done if this normalization is for a dependency ID. - * @returns {String} normalized name - */ - function normalize(name, baseName, applyMap) { - var pkgName, pkgConfig, mapValue, nameParts, i, j, nameSegment, - foundMap, foundI, foundStarMap, starI, - baseParts = baseName && baseName.split('/'), - normalizedBaseParts = baseParts, - map = config.map, - starMap = map && map['*']; - - //Adjust any relative paths. - if (name && name.charAt(0) === '.') { - //If have a base name, try to normalize against it, - //otherwise, assume it is a top-level require that will - //be relative to baseUrl in the end. - if (baseName) { - if (getOwn(config.pkgs, baseName)) { - //If the baseName is a package name, then just treat it as one - //name to concat the name with. - normalizedBaseParts = baseParts = [baseName]; - } else { - //Convert baseName to array, and lop off the last part, - //so that . matches that 'directory' and not name of the baseName's - //module. For instance, baseName of 'one/two/three', maps to - //'one/two/three.js', but we want the directory, 'one/two' for - //this normalization. - normalizedBaseParts = baseParts.slice(0, baseParts.length - 1); - } - - name = normalizedBaseParts.concat(name.split('/')); - trimDots(name); - - //Some use of packages may use a . path to reference the - //'main' module name, so normalize for that. - pkgConfig = getOwn(config.pkgs, (pkgName = name[0])); - name = name.join('/'); - if (pkgConfig && name === pkgName + '/' + pkgConfig.main) { - name = pkgName; - } - } else if (name.indexOf('./') === 0) { - // No baseName, so this is ID is resolved relative - // to baseUrl, pull off the leading dot. - name = name.substring(2); - } - } - - //Apply map config if available. - if (applyMap && map && (baseParts || starMap)) { - nameParts = name.split('/'); - - for (i = nameParts.length; i > 0; i -= 1) { - nameSegment = nameParts.slice(0, i).join('/'); - - if (baseParts) { - //Find the longest baseName segment match in the config. - //So, do joins on the biggest to smallest lengths of baseParts. - for (j = baseParts.length; j > 0; j -= 1) { - mapValue = getOwn(map, baseParts.slice(0, j).join('/')); - - //baseName segment has config, find if it has one for - //this name. - if (mapValue) { - mapValue = getOwn(mapValue, nameSegment); - if (mapValue) { - //Match, update name to the new value. - foundMap = mapValue; - foundI = i; - break; - } - } - } - } - - if (foundMap) { - break; - } - - //Check for a star map match, but just hold on to it, - //if there is a shorter segment match later in a matching - //config, then favor over this star map. - if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) { - foundStarMap = getOwn(starMap, nameSegment); - starI = i; - } - } - - if (!foundMap && foundStarMap) { - foundMap = foundStarMap; - foundI = starI; - } - - if (foundMap) { - nameParts.splice(0, foundI, foundMap); - name = nameParts.join('/'); - } - } - - return name; - } - - function removeScript(name) { - if (isBrowser) { - each(scripts(), function (scriptNode) { - if (scriptNode.getAttribute('data-requiremodule') === name && - scriptNode.getAttribute('data-requirecontext') === context.contextName) { - scriptNode.parentNode.removeChild(scriptNode); - return true; - } - }); - } - } - - function hasPathFallback(id) { - var pathConfig = getOwn(config.paths, id); - if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) { - removeScript(id); - //Pop off the first array value, since it failed, and - //retry - pathConfig.shift(); - context.require.undef(id); - context.require([id]); - return true; - } - } - - //Turns a plugin!resource to [plugin, resource] - //with the plugin being undefined if the name - //did not have a plugin prefix. - function splitPrefix(name) { - var prefix, - index = name ? name.indexOf('!') : -1; - if (index > -1) { - prefix = name.substring(0, index); - name = name.substring(index + 1, name.length); - } - return [prefix, name]; - } - - /** - * Creates a module mapping that includes plugin prefix, module - * name, and path. If parentModuleMap is provided it will - * also normalize the name via require.normalize() - * - * @param {String} name the module name - * @param {String} [parentModuleMap] parent module map - * for the module name, used to resolve relative names. - * @param {Boolean} isNormalized: is the ID already normalized. - * This is true if this call is done for a define() module ID. - * @param {Boolean} applyMap: apply the map config to the ID. - * Should only be true if this map is for a dependency. - * - * @returns {Object} - */ - function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) { - var url, pluginModule, suffix, nameParts, - prefix = null, - parentName = parentModuleMap ? parentModuleMap.name : null, - originalName = name, - isDefine = true, - normalizedName = ''; - - //If no name, then it means it is a require call, generate an - //internal name. - if (!name) { - isDefine = false; - name = '_@r' + (requireCounter += 1); - } - - nameParts = splitPrefix(name); - prefix = nameParts[0]; - name = nameParts[1]; - - if (prefix) { - prefix = normalize(prefix, parentName, applyMap); - pluginModule = getOwn(defined, prefix); - } - - //Account for relative paths if there is a base name. - if (name) { - if (prefix) { - if (pluginModule && pluginModule.normalize) { - //Plugin is loaded, use its normalize method. - normalizedName = pluginModule.normalize(name, function (name) { - return normalize(name, parentName, applyMap); - }); - } else { - normalizedName = normalize(name, parentName, applyMap); - } - } else { - //A regular module. - normalizedName = normalize(name, parentName, applyMap); - - //Normalized name may be a plugin ID due to map config - //application in normalize. The map config values must - //already be normalized, so do not need to redo that part. - nameParts = splitPrefix(normalizedName); - prefix = nameParts[0]; - normalizedName = nameParts[1]; - isNormalized = true; - - url = context.nameToUrl(normalizedName); - } - } - - //If the id is a plugin id that cannot be determined if it needs - //normalization, stamp it with a unique ID so two matching relative - //ids that may conflict can be separate. - suffix = prefix && !pluginModule && !isNormalized ? - '_unnormalized' + (unnormalizedCounter += 1) : - ''; - - return { - prefix: prefix, - name: normalizedName, - parentMap: parentModuleMap, - unnormalized: !!suffix, - url: url, - originalName: originalName, - isDefine: isDefine, - id: (prefix ? - prefix + '!' + normalizedName : - normalizedName) + suffix - }; - } - - function getModule(depMap) { - var id = depMap.id, - mod = getOwn(registry, id); - - if (!mod) { - mod = registry[id] = new context.Module(depMap); - } - - return mod; - } - - function on(depMap, name, fn) { - var id = depMap.id, - mod = getOwn(registry, id); - - if (hasProp(defined, id) && - (!mod || mod.defineEmitComplete)) { - if (name === 'defined') { - fn(defined[id]); - } - } else { - getModule(depMap).on(name, fn); - } - } - - function onError(err, errback) { - var ids = err.requireModules, - notified = false; - - if (errback) { - errback(err); - } else { - each(ids, function (id) { - var mod = getOwn(registry, id); - if (mod) { - //Set error on module, so it skips timeout checks. - mod.error = err; - if (mod.events.error) { - notified = true; - mod.emit('error', err); - } - } - }); - - if (!notified) { - req.onError(err); - } - } - } - - /** - * Internal method to transfer globalQueue items to this context's - * defQueue. - */ - function takeGlobalQueue() { - //Push all the globalDefQueue items into the context's defQueue - if (globalDefQueue.length) { - //Array splice in the values since the context code has a - //local var ref to defQueue, so cannot just reassign the one - //on context. - apsp.apply(defQueue, - [defQueue.length - 1, 0].concat(globalDefQueue)); - globalDefQueue = []; - } - } - - handlers = { - 'require': function (mod) { - if (mod.require) { - return mod.require; - } else { - return (mod.require = context.makeRequire(mod.map)); - } - }, - 'exports': function (mod) { - mod.usingExports = true; - if (mod.map.isDefine) { - if (mod.exports) { - return mod.exports; - } else { - return (mod.exports = defined[mod.map.id] = {}); - } - } - }, - 'module': function (mod) { - if (mod.module) { - return mod.module; - } else { - return (mod.module = { - id: mod.map.id, - uri: mod.map.url, - config: function () { - return (config.config && getOwn(config.config, mod.map.id)) || {}; - }, - exports: defined[mod.map.id] - }); - } - } - }; - - function cleanRegistry(id) { - //Clean up machinery used for waiting modules. - delete registry[id]; - delete enabledRegistry[id]; - } - - function breakCycle(mod, traced, processed) { - var id = mod.map.id; - - if (mod.error) { - mod.emit('error', mod.error); - } else { - traced[id] = true; - each(mod.depMaps, function (depMap, i) { - var depId = depMap.id, - dep = getOwn(registry, depId); - - //Only force things that have not completed - //being defined, so still in the registry, - //and only if it has not been matched up - //in the module already. - if (dep && !mod.depMatched[i] && !processed[depId]) { - if (getOwn(traced, depId)) { - mod.defineDep(i, defined[depId]); - mod.check(); //pass false? - } else { - breakCycle(dep, traced, processed); - } - } - }); - processed[id] = true; - } - } - - function checkLoaded() { - var map, modId, err, usingPathFallback, - waitInterval = config.waitSeconds * 1000, - //It is possible to disable the wait interval by using waitSeconds of 0. - expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(), - noLoads = [], - reqCalls = [], - stillLoading = false, - needCycleCheck = true; - - //Do not bother if this call was a result of a cycle break. - if (inCheckLoaded) { - return; - } - - inCheckLoaded = true; - - //Figure out the state of all the modules. - eachProp(enabledRegistry, function (mod) { - map = mod.map; - modId = map.id; - - //Skip things that are not enabled or in error state. - if (!mod.enabled) { - return; - } - - if (!map.isDefine) { - reqCalls.push(mod); - } - - if (!mod.error) { - //If the module should be executed, and it has not - //been inited and time is up, remember it. - if (!mod.inited && expired) { - if (hasPathFallback(modId)) { - usingPathFallback = true; - stillLoading = true; - } else { - noLoads.push(modId); - removeScript(modId); - } - } else if (!mod.inited && mod.fetched && map.isDefine) { - stillLoading = true; - if (!map.prefix) { - //No reason to keep looking for unfinished - //loading. If the only stillLoading is a - //plugin resource though, keep going, - //because it may be that a plugin resource - //is waiting on a non-plugin cycle. - return (needCycleCheck = false); - } - } - } - }); - - if (expired && noLoads.length) { - //If wait time expired, throw error of unloaded modules. - err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads); - err.contextName = context.contextName; - return onError(err); - } - - //Not expired, check for a cycle. - if (needCycleCheck) { - each(reqCalls, function (mod) { - breakCycle(mod, {}, {}); - }); - } - - //If still waiting on loads, and the waiting load is something - //other than a plugin resource, or there are still outstanding - //scripts, then just try back later. - if ((!expired || usingPathFallback) && stillLoading) { - //Something is still waiting to load. Wait for it, but only - //if a timeout is not already in effect. - if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) { - checkLoadedTimeoutId = setTimeout(function () { - checkLoadedTimeoutId = 0; - checkLoaded(); - }, 50); - } - } - - inCheckLoaded = false; - } - - Module = function (map) { - this.events = getOwn(undefEvents, map.id) || {}; - this.map = map; - this.shim = getOwn(config.shim, map.id); - this.depExports = []; - this.depMaps = []; - this.depMatched = []; - this.pluginMaps = {}; - this.depCount = 0; - - /* this.exports this.factory - this.depMaps = [], - this.enabled, this.fetched - */ - }; - - Module.prototype = { - init: function (depMaps, factory, errback, options) { - options = options || {}; - - //Do not do more inits if already done. Can happen if there - //are multiple define calls for the same module. That is not - //a normal, common case, but it is also not unexpected. - if (this.inited) { - return; - } - - this.factory = factory; - - if (errback) { - //Register for errors on this module. - this.on('error', errback); - } else if (this.events.error) { - //If no errback already, but there are error listeners - //on this module, set up an errback to pass to the deps. - errback = bind(this, function (err) { - this.emit('error', err); - }); - } - - //Do a copy of the dependency array, so that - //source inputs are not modified. For example - //"shim" deps are passed in here directly, and - //doing a direct modification of the depMaps array - //would affect that config. - this.depMaps = depMaps && depMaps.slice(0); - - this.errback = errback; - - //Indicate this module has be initialized - this.inited = true; - - this.ignore = options.ignore; - - //Could have option to init this module in enabled mode, - //or could have been previously marked as enabled. However, - //the dependencies are not known until init is called. So - //if enabled previously, now trigger dependencies as enabled. - if (options.enabled || this.enabled) { - //Enable this module and dependencies. - //Will call this.check() - this.enable(); - } else { - this.check(); - } - }, - - defineDep: function (i, depExports) { - //Because of cycles, defined callback for a given - //export can be called more than once. - if (!this.depMatched[i]) { - this.depMatched[i] = true; - this.depCount -= 1; - this.depExports[i] = depExports; - } - }, - - fetch: function () { - if (this.fetched) { - return; - } - this.fetched = true; - - context.startTime = (new Date()).getTime(); - - var map = this.map; - - //If the manager is for a plugin managed resource, - //ask the plugin to load it now. - if (this.shim) { - context.makeRequire(this.map, { - enableBuildCallback: true - })(this.shim.deps || [], bind(this, function () { - return map.prefix ? this.callPlugin() : this.load(); - })); - } else { - //Regular dependency. - return map.prefix ? this.callPlugin() : this.load(); - } - }, - - load: function () { - var url = this.map.url; - - //Regular dependency. - if (!urlFetched[url]) { - urlFetched[url] = true; - context.load(this.map.id, url); - } - }, - - /** - * Checks if the module is ready to define itself, and if so, - * define it. - */ - check: function () { - if (!this.enabled || this.enabling) { - return; - } - - var err, cjsModule, - id = this.map.id, - depExports = this.depExports, - exports = this.exports, - factory = this.factory; - - if (!this.inited) { - this.fetch(); - } else if (this.error) { - this.emit('error', this.error); - } else if (!this.defining) { - //The factory could trigger another require call - //that would result in checking this module to - //define itself again. If already in the process - //of doing that, skip this work. - this.defining = true; - - if (this.depCount < 1 && !this.defined) { - if (isFunction(factory)) { - //If there is an error listener, favor passing - //to that instead of throwing an error. - if (this.events.error) { - try { - exports = context.execCb(id, factory, depExports, exports); - } catch (e) { - err = e; - } - } else { - exports = context.execCb(id, factory, depExports, exports); - } - - if (this.map.isDefine) { - //If setting exports via 'module' is in play, - //favor that over return value and exports. After that, - //favor a non-undefined return value over exports use. - cjsModule = this.module; - if (cjsModule && - cjsModule.exports !== undefined && - //Make sure it is not already the exports value - cjsModule.exports !== this.exports) { - exports = cjsModule.exports; - } else if (exports === undefined && this.usingExports) { - //exports already set the defined value. - exports = this.exports; - } - } - - if (err) { - err.requireMap = this.map; - err.requireModules = [this.map.id]; - err.requireType = 'define'; - return onError((this.error = err)); - } - - } else { - //Just a literal value - exports = factory; - } - - this.exports = exports; - - if (this.map.isDefine && !this.ignore) { - defined[id] = exports; - - if (req.onResourceLoad) { - req.onResourceLoad(context, this.map, this.depMaps); - } - } - - //Clean up - cleanRegistry(id); - - this.defined = true; - } - - //Finished the define stage. Allow calling check again - //to allow define notifications below in the case of a - //cycle. - this.defining = false; - - if (this.defined && !this.defineEmitted) { - this.defineEmitted = true; - this.emit('defined', this.exports); - this.defineEmitComplete = true; - } - - } - }, - - callPlugin: function () { - var map = this.map, - id = map.id, - //Map already normalized the prefix. - pluginMap = makeModuleMap(map.prefix); - - //Mark this as a dependency for this plugin, so it - //can be traced for cycles. - this.depMaps.push(pluginMap); - - on(pluginMap, 'defined', bind(this, function (plugin) { - var load, normalizedMap, normalizedMod, - name = this.map.name, - parentName = this.map.parentMap ? this.map.parentMap.name : null, - localRequire = context.makeRequire(map.parentMap, { - enableBuildCallback: true - }); - - //If current map is not normalized, wait for that - //normalized name to load instead of continuing. - if (this.map.unnormalized) { - //Normalize the ID if the plugin allows it. - if (plugin.normalize) { - name = plugin.normalize(name, function (name) { - return normalize(name, parentName, true); - }) || ''; - } - - //prefix and name should already be normalized, no need - //for applying map config again either. - normalizedMap = makeModuleMap(map.prefix + '!' + name, - this.map.parentMap); - on(normalizedMap, - 'defined', bind(this, function (value) { - this.init([], function () { return value; }, null, { - enabled: true, - ignore: true - }); - })); - - normalizedMod = getOwn(registry, normalizedMap.id); - if (normalizedMod) { - //Mark this as a dependency for this plugin, so it - //can be traced for cycles. - this.depMaps.push(normalizedMap); - - if (this.events.error) { - normalizedMod.on('error', bind(this, function (err) { - this.emit('error', err); - })); - } - normalizedMod.enable(); - } - - return; - } - - load = bind(this, function (value) { - this.init([], function () { return value; }, null, { - enabled: true - }); - }); - - load.error = bind(this, function (err) { - this.inited = true; - this.error = err; - err.requireModules = [id]; - - //Remove temp unnormalized modules for this module, - //since they will never be resolved otherwise now. - eachProp(registry, function (mod) { - if (mod.map.id.indexOf(id + '_unnormalized') === 0) { - cleanRegistry(mod.map.id); - } - }); - - onError(err); - }); - - //Allow plugins to load other code without having to know the - //context or how to 'complete' the load. - load.fromText = bind(this, function (text, textAlt) { - /*jslint evil: true */ - var moduleName = map.name, - moduleMap = makeModuleMap(moduleName), - hasInteractive = useInteractive; - - //As of 2.1.0, support just passing the text, to reinforce - //fromText only being called once per resource. Still - //support old style of passing moduleName but discard - //that moduleName in favor of the internal ref. - if (textAlt) { - text = textAlt; - } - - //Turn off interactive script matching for IE for any define - //calls in the text, then turn it back on at the end. - if (hasInteractive) { - useInteractive = false; - } - - //Prime the system by creating a module instance for - //it. - getModule(moduleMap); - - //Transfer any config to this other module. - if (hasProp(config.config, id)) { - config.config[moduleName] = config.config[id]; - } - - try { - req.exec(text); - } catch (e) { - return onError(makeError('fromtexteval', - 'fromText eval for ' + id + - ' failed: ' + e, - e, - [id])); - } - - if (hasInteractive) { - useInteractive = true; - } - - //Mark this as a dependency for the plugin - //resource - this.depMaps.push(moduleMap); - - //Support anonymous modules. - context.completeLoad(moduleName); - - //Bind the value of that module to the value for this - //resource ID. - localRequire([moduleName], load); - }); - - //Use parentName here since the plugin's name is not reliable, - //could be some weird string with no path that actually wants to - //reference the parentName's path. - plugin.load(map.name, localRequire, load, config); - })); - - context.enable(pluginMap, this); - this.pluginMaps[pluginMap.id] = pluginMap; - }, - - enable: function () { - enabledRegistry[this.map.id] = this; - this.enabled = true; - - //Set flag mentioning that the module is enabling, - //so that immediate calls to the defined callbacks - //for dependencies do not trigger inadvertent load - //with the depCount still being zero. - this.enabling = true; - - //Enable each dependency - each(this.depMaps, bind(this, function (depMap, i) { - var id, mod, handler; - - if (typeof depMap === 'string') { - //Dependency needs to be converted to a depMap - //and wired up to this module. - depMap = makeModuleMap(depMap, - (this.map.isDefine ? this.map : this.map.parentMap), - false, - !this.skipMap); - this.depMaps[i] = depMap; - - handler = getOwn(handlers, depMap.id); - - if (handler) { - this.depExports[i] = handler(this); - return; - } - - this.depCount += 1; - - on(depMap, 'defined', bind(this, function (depExports) { - this.defineDep(i, depExports); - this.check(); - })); - - if (this.errback) { - on(depMap, 'error', this.errback); - } - } - - id = depMap.id; - mod = registry[id]; - - //Skip special modules like 'require', 'exports', 'module' - //Also, don't call enable if it is already enabled, - //important in circular dependency cases. - if (!hasProp(handlers, id) && mod && !mod.enabled) { - context.enable(depMap, this); - } - })); - - //Enable each plugin that is used in - //a dependency - eachProp(this.pluginMaps, bind(this, function (pluginMap) { - var mod = getOwn(registry, pluginMap.id); - if (mod && !mod.enabled) { - context.enable(pluginMap, this); - } - })); - - this.enabling = false; - - this.check(); - }, - - on: function (name, cb) { - var cbs = this.events[name]; - if (!cbs) { - cbs = this.events[name] = []; - } - cbs.push(cb); - }, - - emit: function (name, evt) { - each(this.events[name], function (cb) { - cb(evt); - }); - if (name === 'error') { - //Now that the error handler was triggered, remove - //the listeners, since this broken Module instance - //can stay around for a while in the registry. - delete this.events[name]; - } - } - }; - - function callGetModule(args) { - //Skip modules already defined. - if (!hasProp(defined, args[0])) { - getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]); - } - } - - function removeListener(node, func, name, ieName) { - //Favor detachEvent because of IE9 - //issue, see attachEvent/addEventListener comment elsewhere - //in this file. - if (node.detachEvent && !isOpera) { - //Probably IE. If not it will throw an error, which will be - //useful to know. - if (ieName) { - node.detachEvent(ieName, func); - } - } else { - node.removeEventListener(name, func, false); - } - } - - /** - * Given an event from a script node, get the requirejs info from it, - * and then removes the event listeners on the node. - * @param {Event} evt - * @returns {Object} - */ - function getScriptData(evt) { - //Using currentTarget instead of target for Firefox 2.0's sake. Not - //all old browsers will be supported, but this one was easy enough - //to support and still makes sense. - var node = evt.currentTarget || evt.srcElement; - - //Remove the listeners once here. - removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange'); - removeListener(node, context.onScriptError, 'error'); - - return { - node: node, - id: node && node.getAttribute('data-requiremodule') - }; - } - - function intakeDefines() { - var args; - - //Any defined modules in the global queue, intake them now. - takeGlobalQueue(); - - //Make sure any remaining defQueue items get properly processed. - while (defQueue.length) { - args = defQueue.shift(); - if (args[0] === null) { - return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1])); - } else { - //args are id, deps, factory. Should be normalized by the - //define() function. - callGetModule(args); - } - } - } - - context = { - config: config, - contextName: contextName, - registry: registry, - defined: defined, - urlFetched: urlFetched, - defQueue: defQueue, - Module: Module, - makeModuleMap: makeModuleMap, - nextTick: req.nextTick, - onError: onError, - - /** - * Set a configuration for the context. - * @param {Object} cfg config object to integrate. - */ - configure: function (cfg) { - //Make sure the baseUrl ends in a slash. - if (cfg.baseUrl) { - if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') { - cfg.baseUrl += '/'; - } - } - - //Save off the paths and packages since they require special processing, - //they are additive. - var pkgs = config.pkgs, - shim = config.shim, - objs = { - paths: true, - config: true, - map: true - }; - - eachProp(cfg, function (value, prop) { - if (objs[prop]) { - if (prop === 'map') { - if (!config.map) { - config.map = {}; - } - mixin(config[prop], value, true, true); - } else { - mixin(config[prop], value, true); - } - } else { - config[prop] = value; - } - }); - - //Merge shim - if (cfg.shim) { - eachProp(cfg.shim, function (value, id) { - //Normalize the structure - if (isArray(value)) { - value = { - deps: value - }; - } - if ((value.exports || value.init) && !value.exportsFn) { - value.exportsFn = context.makeShimExports(value); - } - shim[id] = value; - }); - config.shim = shim; - } - - //Adjust packages if necessary. - if (cfg.packages) { - each(cfg.packages, function (pkgObj) { - var location; - - pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj; - location = pkgObj.location; - - //Create a brand new object on pkgs, since currentPackages can - //be passed in again, and config.pkgs is the internal transformed - //state for all package configs. - pkgs[pkgObj.name] = { - name: pkgObj.name, - location: location || pkgObj.name, - //Remove leading dot in main, so main paths are normalized, - //and remove any trailing .js, since different package - //envs have different conventions: some use a module name, - //some use a file name. - main: (pkgObj.main || 'main') - .replace(currDirRegExp, '') - .replace(jsSuffixRegExp, '') - }; - }); - - //Done with modifications, assing packages back to context config - config.pkgs = pkgs; - } - - //If there are any "waiting to execute" modules in the registry, - //update the maps for them, since their info, like URLs to load, - //may have changed. - eachProp(registry, function (mod, id) { - //If module already has init called, since it is too - //late to modify them, and ignore unnormalized ones - //since they are transient. - if (!mod.inited && !mod.map.unnormalized) { - mod.map = makeModuleMap(id); - } - }); - - //If a deps array or a config callback is specified, then call - //require with those args. This is useful when require is defined as a - //config object before require.js is loaded. - if (cfg.deps || cfg.callback) { - context.require(cfg.deps || [], cfg.callback); - } - }, - - makeShimExports: function (value) { - function fn() { - var ret; - if (value.init) { - ret = value.init.apply(global, arguments); - } - return ret || (value.exports && getGlobal(value.exports)); - } - return fn; - }, - - makeRequire: function (relMap, options) { - options = options || {}; - - function localRequire(deps, callback, errback) { - var id, map, requireMod; - - if (options.enableBuildCallback && callback && isFunction(callback)) { - callback.__requireJsBuild = true; - } - - if (typeof deps === 'string') { - if (isFunction(callback)) { - //Invalid call - return onError(makeError('requireargs', 'Invalid require call'), errback); - } - - //If require|exports|module are requested, get the - //value for them from the special handlers. Caveat: - //this only works while module is being defined. - if (relMap && hasProp(handlers, deps)) { - return handlers[deps](registry[relMap.id]); - } - - //Synchronous access to one module. If require.get is - //available (as in the Node adapter), prefer that. - if (req.get) { - return req.get(context, deps, relMap, localRequire); - } - - //Normalize module name, if it contains . or .. - map = makeModuleMap(deps, relMap, false, true); - id = map.id; - - if (!hasProp(defined, id)) { - return onError(makeError('notloaded', 'Module name "' + - id + - '" has not been loaded yet for context: ' + - contextName + - (relMap ? '' : '. Use require([])'))); - } - return defined[id]; - } - - //Grab defines waiting in the global queue. - intakeDefines(); - - //Mark all the dependencies as needing to be loaded. - context.nextTick(function () { - //Some defines could have been added since the - //require call, collect them. - intakeDefines(); - - requireMod = getModule(makeModuleMap(null, relMap)); - - //Store if map config should be applied to this require - //call for dependencies. - requireMod.skipMap = options.skipMap; - - requireMod.init(deps, callback, errback, { - enabled: true - }); - - checkLoaded(); - }); - - return localRequire; - } - - mixin(localRequire, { - isBrowser: isBrowser, - - /** - * Converts a module name + .extension into an URL path. - * *Requires* the use of a module name. It does not support using - * plain URLs like nameToUrl. - */ - toUrl: function (moduleNamePlusExt) { - var ext, - index = moduleNamePlusExt.lastIndexOf('.'), - segment = moduleNamePlusExt.split('/')[0], - isRelative = segment === '.' || segment === '..'; - - //Have a file extension alias, and it is not the - //dots from a relative path. - if (index !== -1 && (!isRelative || index > 1)) { - ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length); - moduleNamePlusExt = moduleNamePlusExt.substring(0, index); - } - - return context.nameToUrl(normalize(moduleNamePlusExt, - relMap && relMap.id, true), ext, true); - }, - - defined: function (id) { - return hasProp(defined, makeModuleMap(id, relMap, false, true).id); - }, - - specified: function (id) { - id = makeModuleMap(id, relMap, false, true).id; - return hasProp(defined, id) || hasProp(registry, id); - } - }); - - //Only allow undef on top level require calls - if (!relMap) { - localRequire.undef = function (id) { - //Bind any waiting define() calls to this context, - //fix for #408 - takeGlobalQueue(); - - var map = makeModuleMap(id, relMap, true), - mod = getOwn(registry, id); - - delete defined[id]; - delete urlFetched[map.url]; - delete undefEvents[id]; - - if (mod) { - //Hold on to listeners in case the - //module will be attempted to be reloaded - //using a different config. - if (mod.events.defined) { - undefEvents[id] = mod.events; - } - - cleanRegistry(id); - } - }; - } - - return localRequire; - }, - - /** - * Called to enable a module if it is still in the registry - * awaiting enablement. A second arg, parent, the parent module, - * is passed in for context, when this method is overriden by - * the optimizer. Not shown here to keep code compact. - */ - enable: function (depMap) { - var mod = getOwn(registry, depMap.id); - if (mod) { - getModule(depMap).enable(); - } - }, - - /** - * Internal method used by environment adapters to complete a load event. - * A load event could be a script load or just a load pass from a synchronous - * load call. - * @param {String} moduleName the name of the module to potentially complete. - */ - completeLoad: function (moduleName) { - var found, args, mod, - shim = getOwn(config.shim, moduleName) || {}, - shExports = shim.exports; - - takeGlobalQueue(); - - while (defQueue.length) { - args = defQueue.shift(); - if (args[0] === null) { - args[0] = moduleName; - //If already found an anonymous module and bound it - //to this name, then this is some other anon module - //waiting for its completeLoad to fire. - if (found) { - break; - } - found = true; - } else if (args[0] === moduleName) { - //Found matching define call for this script! - found = true; - } - - callGetModule(args); - } - - //Do this after the cycle of callGetModule in case the result - //of those calls/init calls changes the registry. - mod = getOwn(registry, moduleName); - - if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) { - if (config.enforceDefine && (!shExports || !getGlobal(shExports))) { - if (hasPathFallback(moduleName)) { - return; - } else { - return onError(makeError('nodefine', - 'No define call for ' + moduleName, - null, - [moduleName])); - } - } else { - //A script that does not call define(), so just simulate - //the call for it. - callGetModule([moduleName, (shim.deps || []), shim.exportsFn]); - } - } - - checkLoaded(); - }, - - /** - * Converts a module name to a file path. Supports cases where - * moduleName may actually be just an URL. - * Note that it **does not** call normalize on the moduleName, - * it is assumed to have already been normalized. This is an - * internal API, not a public one. Use toUrl for the public API. - */ - nameToUrl: function (moduleName, ext, skipExt) { - var paths, pkgs, pkg, pkgPath, syms, i, parentModule, url, - parentPath; - - //If a colon is in the URL, it indicates a protocol is used and it is just - //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?) - //or ends with .js, then assume the user meant to use an url and not a module id. - //The slash is important for protocol-less URLs as well as full paths. - if (req.jsExtRegExp.test(moduleName)) { - //Just a plain path, not module name lookup, so just return it. - //Add extension if it is included. This is a bit wonky, only non-.js things pass - //an extension, this method probably needs to be reworked. - url = moduleName + (ext || ''); - } else { - //A module that needs to be converted to a path. - paths = config.paths; - pkgs = config.pkgs; - - syms = moduleName.split('/'); - //For each module name segment, see if there is a path - //registered for it. Start with most specific name - //and work up from it. - for (i = syms.length; i > 0; i -= 1) { - parentModule = syms.slice(0, i).join('/'); - pkg = getOwn(pkgs, parentModule); - parentPath = getOwn(paths, parentModule); - if (parentPath) { - //If an array, it means there are a few choices, - //Choose the one that is desired - if (isArray(parentPath)) { - parentPath = parentPath[0]; - } - syms.splice(0, i, parentPath); - break; - } else if (pkg) { - //If module name is just the package name, then looking - //for the main module. - if (moduleName === pkg.name) { - pkgPath = pkg.location + '/' + pkg.main; - } else { - pkgPath = pkg.location; - } - syms.splice(0, i, pkgPath); - break; - } - } - - //Join the path parts together, then figure out if baseUrl is needed. - url = syms.join('/'); - url += (ext || (/\?/.test(url) || skipExt ? '' : '.js')); - url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url; - } - - return config.urlArgs ? url + - ((url.indexOf('?') === -1 ? '?' : '&') + - config.urlArgs) : url; - }, - - //Delegates to req.load. Broken out as a separate function to - //allow overriding in the optimizer. - load: function (id, url) { - req.load(context, id, url); - }, - - /** - * Executes a module callack function. Broken out as a separate function - * solely to allow the build system to sequence the files in the built - * layer in the right sequence. - * - * @private - */ - execCb: function (name, callback, args, exports) { - return callback.apply(exports, args); - }, - - /** - * callback for script loads, used to check status of loading. - * - * @param {Event} evt the event from the browser for the script - * that was loaded. - */ - onScriptLoad: function (evt) { - //Using currentTarget instead of target for Firefox 2.0's sake. Not - //all old browsers will be supported, but this one was easy enough - //to support and still makes sense. - if (evt.type === 'load' || - (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) { - //Reset interactive script so a script node is not held onto for - //to long. - interactiveScript = null; - - //Pull out the name of the module and the context. - var data = getScriptData(evt); - context.completeLoad(data.id); - } - }, - - /** - * Callback for script errors. - */ - onScriptError: function (evt) { - var data = getScriptData(evt); - if (!hasPathFallback(data.id)) { - return onError(makeError('scripterror', 'Script error', evt, [data.id])); - } - } - }; - - context.require = context.makeRequire(); - return context; - } - - /** - * Main entry point. - * - * If the only argument to require is a string, then the module that - * is represented by that string is fetched for the appropriate context. - * - * If the first argument is an array, then it will be treated as an array - * of dependency string names to fetch. An optional function callback can - * be specified to execute when all of those dependencies are available. - * - * Make a local req variable to help Caja compliance (it assumes things - * on a require that are not standardized), and to give a short - * name for minification/local scope use. - */ - req = requirejs = function (deps, callback, errback, optional) { - - //Find the right context, use default - var context, config, - contextName = defContextName; - - // Determine if have config object in the call. - if (!isArray(deps) && typeof deps !== 'string') { - // deps is a config object - config = deps; - if (isArray(callback)) { - // Adjust args if there are dependencies - deps = callback; - callback = errback; - errback = optional; - } else { - deps = []; - } - } - - if (config && config.context) { - contextName = config.context; - } - - context = getOwn(contexts, contextName); - if (!context) { - context = contexts[contextName] = req.s.newContext(contextName); - } - - if (config) { - context.configure(config); - } - - return context.require(deps, callback, errback); - }; - - /** - * Support require.config() to make it easier to cooperate with other - * AMD loaders on globally agreed names. - */ - req.config = function (config) { - return req(config); - }; - - /** - * Execute something after the current tick - * of the event loop. Override for other envs - * that have a better solution than setTimeout. - * @param {Function} fn function to execute later. - */ - req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) { - setTimeout(fn, 4); - } : function (fn) { fn(); }; - - /** - * Export require as a global, but only if it does not already exist. - */ - if (!require) { - require = req; - } - - req.version = version; - - //Used to filter out dependencies that are already paths. - req.jsExtRegExp = /^\/|:|\?|\.js$/; - req.isBrowser = isBrowser; - s = req.s = { - contexts: contexts, - newContext: newContext - }; - - //Create default context. - req({}); - - //Exports some context-sensitive methods on global require. - each([ - 'toUrl', - 'undef', - 'defined', - 'specified' - ], function (prop) { - //Reference from contexts instead of early binding to default context, - //so that during builds, the latest instance of the default context - //with its config gets used. - req[prop] = function () { - var ctx = contexts[defContextName]; - return ctx.require[prop].apply(ctx, arguments); - }; - }); - - if (isBrowser) { - head = s.head = document.getElementsByTagName('head')[0]; - //If BASE tag is in play, using appendChild is a problem for IE6. - //When that browser dies, this can be removed. Details in this jQuery bug: - //http://dev.jquery.com/ticket/2709 - baseElement = document.getElementsByTagName('base')[0]; - if (baseElement) { - head = s.head = baseElement.parentNode; - } - } - - /** - * Any errors that require explicitly generates will be passed to this - * function. Intercept/override it if you want custom error handling. - * @param {Error} err the error object. - */ - req.onError = function (err) { - throw err; - }; - - /** - * Does the request to load a module for the browser case. - * Make this a separate function to allow other environments - * to override it. - * - * @param {Object} context the require context to find state. - * @param {String} moduleName the name of the module. - * @param {Object} url the URL to the module. - */ - req.load = function (context, moduleName, url) { - var config = (context && context.config) || {}, - node; - if (isBrowser) { - //In the browser so use a script tag - node = config.xhtml ? - document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') : - document.createElement('script'); - node.type = config.scriptType || 'text/javascript'; - node.charset = 'utf-8'; - node.async = true; - - node.setAttribute('data-requirecontext', context.contextName); - node.setAttribute('data-requiremodule', moduleName); - - //Set up load listener. Test attachEvent first because IE9 has - //a subtle issue in its addEventListener and script onload firings - //that do not match the behavior of all other browsers with - //addEventListener support, which fire the onload event for a - //script right after the script execution. See: - //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution - //UNFORTUNATELY Opera implements attachEvent but does not follow the script - //script execution mode. - if (node.attachEvent && - //Check if node.attachEvent is artificially added by custom script or - //natively supported by browser - //read https://github.com/jrburke/requirejs/issues/187 - //if we can NOT find [native code] then it must NOT natively supported. - //in IE8, node.attachEvent does not have toString() - //Note the test for "[native code" with no closing brace, see: - //https://github.com/jrburke/requirejs/issues/273 - !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) && - !isOpera) { - //Probably IE. IE (at least 6-8) do not fire - //script onload right after executing the script, so - //we cannot tie the anonymous define call to a name. - //However, IE reports the script as being in 'interactive' - //readyState at the time of the define call. - useInteractive = true; - - node.attachEvent('onreadystatechange', context.onScriptLoad); - //It would be great to add an error handler here to catch - //404s in IE9+. However, onreadystatechange will fire before - //the error handler, so that does not help. If addEventListener - //is used, then IE will fire error before load, but we cannot - //use that pathway given the connect.microsoft.com issue - //mentioned above about not doing the 'script execute, - //then fire the script load event listener before execute - //next script' that other browsers do. - //Best hope: IE10 fixes the issues, - //and then destroys all installs of IE 6-9. - //node.attachEvent('onerror', context.onScriptError); - } else { - node.addEventListener('load', context.onScriptLoad, false); - node.addEventListener('error', context.onScriptError, false); - } - node.src = url; - - //For some cache cases in IE 6-8, the script executes before the end - //of the appendChild execution, so to tie an anonymous define - //call to the module name (which is stored on the node), hold on - //to a reference to this node, but clear after the DOM insertion. - currentlyAddingScript = node; - if (baseElement) { - head.insertBefore(node, baseElement); - } else { - head.appendChild(node); - } - currentlyAddingScript = null; - - return node; - } else if (isWebWorker) { - try { - //In a web worker, use importScripts. This is not a very - //efficient use of importScripts, importScripts will block until - //its script is downloaded and evaluated. However, if web workers - //are in play, the expectation that a build has been done so that - //only one script needs to be loaded anyway. This may need to be - //reevaluated if other use cases become common. - importScripts(url); - - //Account for anonymous modules - context.completeLoad(moduleName); - } catch (e) { - context.onError(makeError('importscripts', - 'importScripts failed for ' + - moduleName + ' at ' + url, - e, - [moduleName])); - } - } - }; - - function getInteractiveScript() { - if (interactiveScript && interactiveScript.readyState === 'interactive') { - return interactiveScript; - } - - eachReverse(scripts(), function (script) { - if (script.readyState === 'interactive') { - return (interactiveScript = script); - } - }); - return interactiveScript; - } - - //Look for a data-main script attribute, which could also adjust the baseUrl. - if (isBrowser) { - //Figure out baseUrl. Get it from the script tag with require.js in it. - eachReverse(scripts(), function (script) { - //Set the 'head' where we can append children by - //using the script's parent. - if (!head) { - head = script.parentNode; - } - - //Look for a data-main attribute to set main script for the page - //to load. If it is there, the path to data main becomes the - //baseUrl, if it is not already set. - dataMain = script.getAttribute('data-main'); - if (dataMain) { - //Set final baseUrl if there is not already an explicit one. - if (!cfg.baseUrl) { - //Pull off the directory of data-main for use as the - //baseUrl. - src = dataMain.split('/'); - mainScript = src.pop(); - subPath = src.length ? src.join('/') + '/' : './'; - - cfg.baseUrl = subPath; - dataMain = mainScript; - } - - //Strip off any trailing .js since dataMain is now - //like a module name. - dataMain = dataMain.replace(jsSuffixRegExp, ''); - - //Put the data-main script in the files to load. - cfg.deps = cfg.deps ? cfg.deps.concat(dataMain) : [dataMain]; - - return true; - } - }); - } - - /** - * The function that handles definitions of modules. Differs from - * require() in that a string for the module should be the first argument, - * and the function to execute after dependencies are loaded should - * return a value to define the module corresponding to the first argument's - * name. - */ - define = function (name, deps, callback) { - var node, context; - - //Allow for anonymous modules - if (typeof name !== 'string') { - //Adjust args appropriately - callback = deps; - deps = name; - name = null; - } - - //This module may not have dependencies - if (!isArray(deps)) { - callback = deps; - deps = []; - } - - //If no name, and callback is a function, then figure out if it a - //CommonJS thing with dependencies. - if (!deps.length && isFunction(callback)) { - //Remove comments from the callback string, - //look for require calls, and pull them into the dependencies, - //but only if there are function args. - if (callback.length) { - callback - .toString() - .replace(commentRegExp, '') - .replace(cjsRequireRegExp, function (match, dep) { - deps.push(dep); - }); - - //May be a CommonJS thing even without require calls, but still - //could use exports, and module. Avoid doing exports and module - //work though if it just needs require. - //REQUIRES the function to expect the CommonJS variables in the - //order listed below. - deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps); - } - } - - //If in IE 6-8 and hit an anonymous define() call, do the interactive - //work. - if (useInteractive) { - node = currentlyAddingScript || getInteractiveScript(); - if (node) { - if (!name) { - name = node.getAttribute('data-requiremodule'); - } - context = contexts[node.getAttribute('data-requirecontext')]; - } - } - - //Always save off evaluating the def call until the script onload handler. - //This allows multiple modules to be in a file without prematurely - //tracing dependencies, and allows for anonymous module support, - //where the module name is not known until the script onload event - //occurs. If no context, use the global queue, and get it processed - //in the onscript load callback. - (context ? context.defQueue : globalDefQueue).push([name, deps, callback]); - }; - - define.amd = { - jQuery: true - }; - - - /** - * Executes the text. Normally just uses eval, but can be modified - * to use a better, environment-specific call. Only used for transpiling - * loader plugins, not for plain JS modules. - * @param {String} text the text to execute/evaluate. - */ - req.exec = function (text) { - /*jslint evil: true */ - return eval(text); - }; - - //Set up with config info. - req(cfg); -}(this)); \ No newline at end of file