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1/** vim: et:ts=4:sw=4:sts=4 2 * @license RequireJS 2.2.0 Copyright jQuery Foundation and other contributors. 3 * Released under MIT license, http://github.com/requirejs/requirejs/LICENSE 4 */ 5//Not using strict: uneven strict support in browsers, #392, and causes 6//problems with requirejs.exec()/transpiler plugins that may not be strict. 7/*jslint regexp: true, nomen: true, sloppy: true */ 8/*global window, navigator, document, importScripts, setTimeout, opera */ 9 10var requirejs, require, define; 11(function (global) { 12 var req, s, head, baseElement, dataMain, src, 13 interactiveScript, currentlyAddingScript, mainScript, subPath, 14 version = '2.2.0', 15 commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg, 16 cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, 17 jsSuffixRegExp = /\.js$/, 18 currDirRegExp = /^\.\//, 19 op = Object.prototype, 20 ostring = op.toString, 21 hasOwn = op.hasOwnProperty, 22 isBrowser = !!(typeof window !== 'undefined' && typeof navigator !== 'undefined' && window.document), 23 isWebWorker = !isBrowser && typeof importScripts !== 'undefined', 24 //PS3 indicates loaded and complete, but need to wait for complete 25 //specifically. Sequence is 'loading', 'loaded', execution, 26 // then 'complete'. The UA check is unfortunate, but not sure how 27 //to feature test w/o causing perf issues. 28 readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ? 29 /^complete$/ : /^(complete|loaded)$/, 30 defContextName = '_', 31 //Oh the tragedy, detecting opera. See the usage of isOpera for reason. 32 isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]', 33 contexts = {}, 34 cfg = {}, 35 globalDefQueue = [], 36 useInteractive = false; 37 38 //Could match something like ')//comment', do not lose the prefix to comment. 39 function commentReplace(match, multi, multiText, singlePrefix) { 40 return singlePrefix || ''; 41 } 42 43 function isFunction(it) { 44 return ostring.call(it) === '[object Function]'; 45 } 46 47 function isArray(it) { 48 return ostring.call(it) === '[object Array]'; 49 } 50 51 /** 52 * Helper function for iterating over an array. If the func returns 53 * a true value, it will break out of the loop. 54 */ 55 function each(ary, func) { 56 if (ary) { 57 var i; 58 for (i = 0; i < ary.length; i += 1) { 59 if (ary[i] && func(ary[i], i, ary)) { 60 break; 61 } 62 } 63 } 64 } 65 66 /** 67 * Helper function for iterating over an array backwards. If the func 68 * returns a true value, it will break out of the loop. 69 */ 70 function eachReverse(ary, func) { 71 if (ary) { 72 var i; 73 for (i = ary.length - 1; i > -1; i -= 1) { 74 if (ary[i] && func(ary[i], i, ary)) { 75 break; 76 } 77 } 78 } 79 } 80 81 function hasProp(obj, prop) { 82 return hasOwn.call(obj, prop); 83 } 84 85 function getOwn(obj, prop) { 86 return hasProp(obj, prop) && obj[prop]; 87 } 88 89 /** 90 * Cycles over properties in an object and calls a function for each 91 * property value. If the function returns a truthy value, then the 92 * iteration is stopped. 93 */ 94 function eachProp(obj, func) { 95 var prop; 96 for (prop in obj) { 97 if (hasProp(obj, prop)) { 98 if (func(obj[prop], prop)) { 99 break; 100 } 101 } 102 } 103 } 104 105 /** 106 * Simple function to mix in properties from source into target, 107 * but only if target does not already have a property of the same name. 108 */ 109 function mixin(target, source, force, deepStringMixin) { 110 if (source) { 111 eachProp(source, function (value, prop) { 112 if (force || !hasProp(target, prop)) { 113 if (deepStringMixin && typeof value === 'object' && value && 114 !isArray(value) && !isFunction(value) && 115 !(value instanceof RegExp)) { 116 117 if (!target[prop]) { 118 target[prop] = {}; 119 } 120 mixin(target[prop], value, force, deepStringMixin); 121 } else { 122 target[prop] = value; 123 } 124 } 125 }); 126 } 127 return target; 128 } 129 130 //Similar to Function.prototype.bind, but the 'this' object is specified 131 //first, since it is easier to read/figure out what 'this' will be. 132 function bind(obj, fn) { 133 return function () { 134 return fn.apply(obj, arguments); 135 }; 136 } 137 138 function scripts() { 139 return document.getElementsByTagName('script'); 140 } 141 142 function defaultOnError(err) { 143 throw err; 144 } 145 146 //Allow getting a global that is expressed in 147 //dot notation, like 'a.b.c'. 148 function getGlobal(value) { 149 if (!value) { 150 return value; 151 } 152 var g = global; 153 each(value.split('.'), function (part) { 154 g = g[part]; 155 }); 156 return g; 157 } 158 159 /** 160 * Constructs an error with a pointer to an URL with more information. 161 * @param {String} id the error ID that maps to an ID on a web page. 162 * @param {String} message human readable error. 163 * @param {Error} [err] the original error, if there is one. 164 * 165 * @returns {Error} 166 */ 167 function makeError(id, msg, err, requireModules) { 168 var e = new Error(msg + '\nhttp
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168://requirejs.org/docs/errors.html#' + id); 169 e.requireType = id; 170 e.requireModules = requireModules; 171 if (err) { 172 e.originalError = err; 173 } 174 return e; 175 } 176 177 if (typeof define !== 'undefined') { 178 //If a define is already in play via another AMD loader, 179 //do not overwrite. 180 return; 181 } 182 183 if (typeof requirejs !== 'undefined') { 184 if (isFunction(requirejs)) { 185 //Do not overwrite an existing requirejs instance. 186 return; 187 } 188 cfg = requirejs; 189 requirejs = undefined; 190 } 191 192 //Allow for a require config object 193 if (typeof require !== 'undefined' && !isFunction(require)) { 194 //assume it is a config object. 195 cfg = require; 196 require = undefined; 197 } 198 199 function newContext(contextName) { 200 var inCheckLoaded, Module, context, handlers, 201 checkLoadedTimeoutId, 202 config = { 203 //Defaults. Do not set a default for map 204 //config to speed up normalize(), which 205 //will run faster if there is no default. 206 waitSeconds: 7, 207 baseUrl: './', 208 paths: {}, 209 bundles: {}, 210 pkgs: {}, 211 shim: {}, 212 config: {} 213 }, 214 registry = {}, 215 //registry of just enabled modules, to speed 216 //cycle breaking code when lots of modules 217 //are registered, but not activated. 218 enabledRegistry = {}, 219 undefEvents = {}, 220 defQueue = [], 221 defined = {}, 222 urlFetched = {}, 223 bundlesMap = {}, 224 requireCounter = 1, 225 unnormalizedCounter = 1; 226 227 /** 228 * Trims the . and .. from an array of path segments. 229 * It will keep a leading path segment if a .. will become 230 * the first path segment, to help with module name lookups, 231 * which act like paths, but can be remapped. But the end result, 232 * all paths that use this function should look normalized. 233 * NOTE: this method MODIFIES the input array. 234 * @param {Array} ary the array of path segments. 235 */ 236 function trimDots(ary) { 237 var i, part; 238 for (i = 0; i < ary.length; i++) { 239 part = ary[i]; 240 if (part === '.') { 241 ary.splice(i, 1); 242 i -= 1; 243 } else if (part === '..') { 244 // If at the start, or previous value is still .., 245 // keep them so that when converted to a path it may 246 // still work when converted to a path, even though 247 // as an ID it is less than ideal. In larger point 248 // releases, may be better to just kick out an error. 249 if (i === 0 || (i === 1 && ary[2] === '..') || ary[i - 1] === '..') { 250 continue; 251 } else if (i > 0) { 252 ary.splice(i - 1, 2); 253 i -= 2; 254 } 255 } 256 } 257 } 258 259 /** 260 * Given a relative module name, like ./something, normalize it to 261 * a real name that can be mapped to a path. 262 * @param {String} name the relative name 263 * @param {String} baseName a real name that the name arg is relative 264 * to. 265 * @param {Boolean} applyMap apply the map config to the value. Should 266 * only be done if this normalization is for a dependency ID. 267 * @returns {String} normalized name 268 */ 269 function normalize(name, baseName, applyMap) { 270 var pkgMain, mapValue, nameParts, i, j, nameSegment, lastIndex, 271 foundMap, foundI, foundStarMap, starI, normalizedBaseParts, 272 baseParts = (baseName && baseName.split('/')), 273 map = config.map, 274 starMap = map && map['*']; 275 276 //Adjust any relative paths. 277 if (name) { 278 name = name.split('/'); 279 lastIndex = name.length - 1; 280 281 // If wanting node ID compatibility, strip .js from end 282 // of IDs. Have to do this here, and not in nameToUrl 283 // because node allows either .js or non .js to map 284 // to same file. 285 if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) { 286 name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, ''); 287 } 288 289 // Starts with a '.' so need the baseName 290 if (name[0].charAt(0) === '.' && baseParts) { 291 //Convert baseName to array, and lop off the last part, 292 //so that . matches that 'directory' and not name of the baseName's 293 //module. For instance, baseName of 'one/two/three', maps to 294 //'one/two/three.js', but we want the directory, 'one/two' for 295 //this normalization. 296 normalizedBaseParts = baseParts.slice(0, baseParts.length - 1); 297 name = normalizedBaseParts.concat(name); 298 } 299 300 trimDots(name); 301 name = name.join('/'); 302 } 303 304 //Apply map config if available. 305 if (applyMap && map && (baseParts || starMap)) { 306 nameParts = name.split('/'); 307 308 outerLoop: for (i = nameParts.length; i > 0; i -= 1) { 309 nameSegment = nameParts.slice(0, i).join('/'); 310 311 if (baseParts) { 312 //Find the longest baseName segment match in the config. 313 //So, do joins on the biggest to smallest lengths of baseParts. 314 for (j = baseParts.length; j > 0; j -= 1) { 315 mapValue = getOwn(map, baseParts.slice(0, j).join('/')); 316 317 //baseName segment has config, find if it has one for 318 //this name. 319 if (mapValue) { 320 mapValue = getOwn(mapValue, nameSegment); 321 if (mapValue) { 322 //Match, update name to the new value. 323 foundMap = mapValue; 324 foundI = i; 325 break outerLoop; 326 } 327 } 328 } 329 } 330 331 //Check for a star map match, but just hold on to it, 332 //if there is a shorter segment match later in a matching 333 //config, then favor over this star map. 334 if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) { 335 foundStarMap = getOwn(starMap, nameSegment); 336 starI = i; 337 } 338 } 339 340 if (!foundMap && foundStarMap) { 341 foundMap = foundStarMap; 342 foundI = starI; 343 } 344 345 if (foundMap) { 346 nameParts.splice(0, foundI, foundMap); 347 name = nameParts.join('/'); 348 } 349 } 350 351 // If the name points to a package's name, use 352 // the package main instead. 353 pkgMain = getOwn(config.pkgs, name); 354 355 return pkgMain ? pkgMain : name; 356 } 357 358 function removeScript(name) { 359 if (isBrowser) { 360 each(scripts(), function (scriptNode) { 361 if (scriptNode.getAttribute('data-requiremodule') === name && 362 scriptNode.getAttribute('data-requirecontext') === context.contextName) { 363 scriptNode.parentNode.removeChild(scriptNode); 364 return true; 365 } 366 }); 367 } 368 } 369 370 function hasPathFallback(id) { 371 var pathConfig = getOwn(config.paths, id); 372 if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) { 373 //Pop off the first array value, since it failed, and 374 //retry 375 pathConfig.shift(); 376 context.require.undef(id); 377 378 //Custom require that does not do map translation, since 379 //ID is "absolute", already mapped/resolved. 380 context.makeRequire(null, { 381 skipMap: true 382 })([id]); 383 384 return true; 385 } 386 } 387 388 //Turns a plugin!resource to [plugin, resource] 389 //with the plugin being undefined if the name 390 //did not have a plugin prefix. 391 function splitPrefix(name) { 392 var prefix, 393 index = name ? name.indexOf('!') : -1; 394 if (index > -1) { 395 prefix = name.substring(0, index); 396 name = name.substring(index + 1, name.length); 397 } 398 return [prefix, name]; 399 } 400 401 /** 402 * Creates a module mapping that includes plugin prefix, module 403 * name, and path. If parentModuleMap is provided it will 404 * also normalize the name via require.normalize() 405 * 406 * @param {String} name the module name 407 * @param {String} [parentModuleMap] parent module map 408 * for the module name, used to resolve relative names. 409 * @param {Boolean} isNormalized: is the ID already normalized. 410 * This is true if this call is done for a define() module ID. 411 * @param {Boolean} applyMap: apply the map config to the ID. 412 * Should only be true if this map is for a dependency. 413 * 414 * @returns {Object} 415 */ 416 function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) { 417 var url, pluginModule, suffix, nameParts, 418 prefix = null, 419 parentName = parentModuleMap ? parentModuleMap.name : null, 420 originalName = name, 421 isDefine = true, 422 normalizedName = ''; 423 424 //If no name, then it means it is a require call, generate an 425 //internal name. 426 if (!name) { 427 isDefine = false; 428 name = '_@r' + (requireCounter += 1); 429 } 430 431 nameParts = splitPrefix(name); 432 prefix = nameParts[0]; 433 name = nameParts[1]; 434 435 if (prefix) { 436 prefix = normalize(prefix, parentName, applyMap); 437 pluginModule = getOwn(defined, prefix); 438 } 439 440 //Account for relative paths if there is a base name. 441 if (name) { 442 if (prefix) { 443 if (pluginModule && pluginModule.normalize) { 444 //Plugin is loaded, use its normalize method. 445 normalizedName = pluginModule.normalize(name, function (name) { 446 return normalize(name, parentName, applyMap); 447 }); 448 } else { 449 // If nested plugin references, then do not try to 450 // normalize, as it will not normalize correctly. This 451 // places a restriction on resourceIds, and the longer 452 // term solution is not to normalize until plugins are 453 // loaded and all normalizations to allow for async 454 // loading of a loader plugin. But for now, fixes the 455 // common uses. Details in #1131 456 normalizedName = name.indexOf('!') === -1 ? 457 normalize(name, parentName, applyMap) : 458 name; 459 } 460 } else { 461 //A regular module. 462 normalizedName = normalize(name, parentName, applyMap); 463 464 //Normalized name may be a plugin ID due to map config 465 //application in normalize. The map config values must 466 //already be normalized, so do not need to redo that part. 467 nameParts = splitPrefix(normalizedName); 468 prefix = nameParts[0]; 469 normalizedName = nameParts[1]; 470 isNormalized = true; 471 472 url = context.nameToUrl(normalizedName); 473 } 474 } 475 476 //If the id is a plugin id that cannot be determined if it needs 477 //normalization, stamp it with a unique ID so two matching relative 478 //ids that may conflict can be separate. 479 suffix = prefix && !pluginModule && !isNormalized ? 480 '_unnormalized' + (unnormalizedCounter += 1) : 481 ''; 482 483 return { 484 prefix: prefix, 485 name: normalizedName, 486 parentMap: parentModuleMap, 487 unnormalized: !!suffix, 488 url: url, 489 originalName: originalName, 490 isDefine: isDefine, 491 id: (prefix ? 492 prefix + '!' + normalizedName : 493 normalizedName) + suffix 494 }; 495 } 496 497 function getModule(depMap) { 498 var id = depMap.id, 499 mod = getOwn(registry, id); 500 501 if (!mod) { 502 mod = registry[id] = new context.Module(depMap); 503 } 504 505 return mod; 506 } 507 508 function on(depMap, name, fn) { 509 var id = depMap.id, 510 mod = getOwn(registry, id); 511 512 if (hasProp(defined, id) && 513 (!mod || mod.defineEmitComplete)) { 514 if (name === 'defined') { 515 fn(defined[id]); 516 } 517 } else { 518 mod = getModule(depMap); 519 if (mod.error && name === 'error') { 520 fn(mod.error); 521 } else { 522 mod.on(name, fn); 523 } 524 } 525 } 526 527 function onError(err, errback) { 528 var ids = err.requireModules, 529 notified = false; 530 531 if (errback) { 532 errback(err); 533 } else { 534 each(ids, function (id) { 535 var mod = getOwn(registry, id); 536 if (mod) { 537 //Set error on module, so it skips timeout checks. 538 mod.error = err; 539 if (mod.events.error) { 540 notified = true; 541 mod.emit('error', err); 542 } 543 } 544 }); 545 546 if (!notified) { 547 req.onError(err); 548 } 549 } 550 } 551 552 /** 553 * Internal method to transfer globalQueue items to this context's 554 * defQueue. 555 */ 556 function takeGlobalQueue() { 557 //Push all the globalDefQueue items into the context's defQueue 558 if (globalDefQueue.length) { 559 each(globalDefQueue, function(queueItem) { 560 var id = queueItem[0]; 561 if (typeof id === 'string') { 562 context.defQueueMap[id] = true; 563 } 564 defQueue.push(queueItem); 565 }); 566 globalDefQueue = []; 567 } 568 } 569 570 handlers = { 571 'require': function (mod) { 572 if (mod.require) { 573 return mod.require; 574 } else { 575 return (mod.require = context.makeRequire(mod.map)); 576 } 577 }, 578 'exports': function (mod) { 579 mod.usingExports = true; 580 if (mod.map.isDefine) { 581 if (mod.exports) { 582 return (defined[mod.map.id] = mod.exports); 583 } else { 584 return (mod.exports = defined[mod.map.id] = {}); 585 } 586 } 587 }, 588 'module': function (mod) { 589 if (mod.module) { 590 return mod.module; 591 } else { 592 return (mod.module = { 593 id: mod.map.id, 594 uri: mod.map.url, 595 config: function () { 596 return getOwn(config.config, mod.map.id) || {}; 597 }, 598 exports: mod.exports || (mod.exports = {}) 599 }); 600 } 601 } 602 }; 603 604 function cleanRegistry(id) { 605 //Clean up machinery used for waiting modules. 606 delete registry[id]; 607 delete enabledRegistry[id]; 608 } 609 610 function breakCycle(mod, traced, processed) { 611 var id = mod.map.id; 612 613 if (mod.error) { 614 mod.emit('error', mod.error); 615 } else { 616 traced[id] = true; 617 each(mod.depMaps, function (depMap, i) { 618 var depId = depMap.id, 619 dep = getOwn(registry, depId); 620 621 //Only force things that have not completed 622 //being defined, so still in the registry, 623 //and only if it has not been matched up 624 //in the module already. 625 if (dep && !mod.depMatched[i] && !processed[depId]) { 626 if (getOwn(traced, depId)) { 627 mod.defineDep(i, defined[depId]); 628 mod.check(); //pass false? 629 } else { 630 breakCycle(dep, traced, processed); 631 } 632 } 633 }); 634 processed[id] = true; 635 } 636 } 637 638 function checkLoaded() { 639 var err, usingPathFallback, 640 waitInterval = config.waitSeconds * 1000, 641 //It is possible to disable the wait interval by using waitSeconds of 0. 642 expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(), 643 noLoads = [], 644 reqCalls = [], 645 stillLoading = false, 646 needCycleCheck = true; 647 648 //Do not bother if this call was a result of a cycle break. 649 if (inCheckLoaded) { 650 return; 651 } 652 653 inCheckLoaded = true; 654 655 //Figure out the state of all the modules. 656 eachProp(enabledRegistry, function (mod) { 657 var map = mod.map, 658 modId = map.id; 659 660 //Skip things that are not enabled or in error state. 661 if (!mod.enabled) { 662 return; 663 } 664 665 if (!map.isDefine) { 666 reqCalls.push(mod); 667 } 668 669 if (!mod.error) { 670 //If the module should be executed, and it has not 671 //been inited and time is up, remember it. 672 if (!mod.inited && expired) { 673 if (hasPathFallback(modId)) { 674 usingPathFallback = true; 675 stillLoading = true; 676 } else { 677 noLoads.push(modId); 678 removeScript(modId); 679 } 680 } else if (!mod.inited && mod.fetched && map.isDefine) { 681 stillLoading = true; 682 if (!map.prefix) { 683 //No reason to keep looking for unfinished 684 //loading. If the only stillLoading is a 685 //plugin resource though, keep going, 686 //because it may be that a plugin resource 687 //is waiting on a non-plugin cycle. 688 return (needCycleCheck = false); 689 } 690 } 691 } 692 }); 693 694 if (expired && noLoads.length) { 695 //If wait time expired, throw error of unloaded modules. 696 err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads); 697 err.contextName = context.contextName; 698 return onError(err); 699 } 700 701 //Not expired, check for a cycle. 702 if (needCycleCheck) { 703 each(reqCalls, function (mod) { 704 breakCycle(mod, {}, {}); 705 }); 706 } 707 708 //If still waiting on loads, and the waiting load is something 709 //other than a plugin resource, or there are still outstanding 710 //scripts, then just try back later. 711 if ((!expired || usingPathFallback) && stillLoading) { 712 //Something is still waiting to load. Wait for it, but only 713 //if a timeout is not already in effect. 714 if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) { 715 checkLoadedTimeoutId = setTimeout(function () { 716 checkLoadedTimeoutId = 0; 717 checkLoaded(); 718 }, 50); 719 } 720 } 721 722 inCheckLoaded = false; 723 } 724 725 Module = function (map) { 726 this.events = getOwn(undefEvents, map.id) || {}; 727 this.map = map; 728 this.shim = getOwn(config.shim, map.id); 729 this.depExports = []; 730 this.depMaps = []; 731 this.depMatched = []; 732 this.pluginMaps = {}; 733 this.depCount = 0; 734 735 /* this.exports this.factory 736 this.depMaps = [], 737 this.enabled, this.fetched 738 */ 739 }; 740 741 Module.prototype = { 742 init: function (depMaps, factory, errback, options) { 743 options = options || {}; 744 745 //Do not do more inits if already done. Can happen if there 746 //are multiple define calls for the same module. That is not 747 //a normal, common case, but it is also not unexpected. 748 if (this.inited) { 749 return; 750 } 751 752 this.factory = factory; 753 754 if (errback) { 755 //Register for errors on this module. 756 this.on('error', errback); 757 } else if (this.events.error) { 758 //If no errback already, but there are error listeners 759 //on this module, set up an errback to pass to the deps. 760 errback = bind(this, function (err) { 761 this.emit('error', err); 762 }); 763 } 764 765 //Do a copy of the dependency array, so that 766 //source inputs are not modified. For example 767 //"shim" deps are passed in here directly, and 768 //doing a direct modification of the depMaps array 769 //would affect that config. 770 this.depMaps = depMaps && depMaps.slice(0); 771 772 this.errback = errback; 773 774 //Indicate this module has be initialized 775 this.inited = true; 776 777 this.ignore = options.ignore; 778 779 //Could have option to init this module in enabled mode, 780 //or could have been previously marked as enabled. However, 781 //the dependencies are not known until init is called. So 782 //if enabled previously, now trigger dependencies as enabled. 783 if (options.enabled || this.enabled) { 784 //Enable this module and dependencies. 785 //Will call this.check() 786 this.enable(); 787 } else { 788 this.check(); 789 } 790 }, 791 792 defineDep: function (i, depExports) { 793 //Because of cycles, defined callback for a given 794 //export can be called more than once. 795 if (!this.depMatched[i]) { 796 this.depMatched[i] = true; 797 this.depCount -= 1; 798 this.depExports[i] = depExports; 799 } 800 }, 801 802 fetch: function () { 803 if (this.fetched) { 804 return; 805 } 806 this.fetched = true; 807 808 context.startTime = (new Date()).getTime(); 809 810 var map = this.map; 811 812 //If the manager is for a plugin managed resource, 813 //ask the plugin to load it now. 814 if (this.shim) { 815 context.makeRequire(this.map, { 816 enableBuildCallback: true 817 })(this.shim.deps || [], bind(this, function () { 818 return map.prefix ? this.callPlugin() : this.load(); 819 })); 820 } else { 821 //Regular dependency. 822 return map.prefix ? this.callPlugin() : this.load(); 823 } 824 }, 825 826 load: function () { 827 var url = this.map.url; 828 829 //Regular dependency. 830 if (!urlFetched[url]) { 831 urlFetched[url] = true; 832 context.load(this.map.id, url); 833 } 834 }, 835 836 /** 837 * Checks if the module is ready to define itself, and if so, 838 * define it. 839 */ 840 check: function () { 841 if (!this.enabled || this.enabling) { 842 return; 843 } 844 845 var err, cjsModule, 846 id = this.map.id, 847 depExports = this.depExports, 848 exports = this.exports, 849 factory = this.factory; 850 851 if (!this.inited) { 852 // Only fetch if not already in the defQueue. 853 if (!hasProp(context.defQueueMap, id)) { 854 this.fetch(); 855 } 856 } else if (this.error) { 857 this.emit('error', this.error); 858 } else if (!this.defining) { 859 //The factory could trigger another require call 860 //that would result in checking this module to 861 //define itself again. If already in the process 862 //of doing that, skip this work. 863 this.defining = true; 864 865 if (this.depCount < 1 && !this.defined) { 866 if (isFunction(factory)) { 867 //If there is an error listener, favor passing 868 //to that instead of throwing an error. However, 869 //only do it for define()'d modules. require 870 //errbacks should not be called for failures in 871 //their callbacks (#699). However if a global 872 //onError is set, use that. 873 if ((this.events.error && this.map.isDefine) || 874 req.onError !== defaultOnError) { 875 try { 876 exports = context.execCb(id, factory, depExports, exports); 877 } catch (e) { 878 err = e; 879 } 880 } else { 881 exports = context.execCb(id, factory, depExports, exports); 882 } 883 884 // Favor return value over exports. If node/cjs in play, 885 // then will not have a return value anyway. Favor 886 // module.exports assignment over exports object. 887 if (this.map.isDefine && exports === undefined) { 888 cjsModule = this.module; 889 if (cjsModule) { 890 exports = cjsModule.exports; 891 } else if (this.usingExports) { 892 //exports already set the defined value. 893 exports = this.exports; 894 } 895 } 896 897 if (err) { 898 err.requireMap = this.map; 899 err.requireModules = this.map.isDefine ? [this.map.id] : null; 900 err.requireType = this.map.isDefine ? 'define' : 'require'; 901 return onError((this.error = err)); 902 } 903 904 } else { 905 //Just a literal value 906 exports = factory; 907 } 908 909 this.exports = exports; 910 911 if (this.map.isDefine && !this.ignore) { 912 defined[id] = exports; 913 914 if (req.onResourceLoad) { 915 var resLoadMaps = []; 916 each(this.depMaps, function (depMap) { 917 resLoadMaps.push(depMap.normalizedMap || depMap); 918 }); 919 req.onResourceLoad(context, this.map, resLoadMaps); 920 } 921 } 922 923 //Clean up 924 cleanRegistry(id); 925 926 this.defined = true; 927 } 928 929 //Finished the define stage. Allow calling check again 930 //to allow define notifications below in the case of a 931 //cycle. 932 this.defining = false; 933 934 if (this.defined && !this.defineEmitted) { 935 this.defineEmitted = true; 936 this.emit('defined', this.exports); 937 this.defineEmitComplete = true; 938 } 939 940 } 941 }, 942 943 callPlugin: function () { 944 var map = this.map, 945 id = map.id, 946 //Map already normalized the prefix. 947 pluginMap = makeModuleMap(map.prefix); 948 949 //Mark this as a dependency for this plugin, so it 950 //can be traced for cycles. 951 this.depMaps.push(pluginMap); 952 953 on(pluginMap, 'defined', bind(this, function (plugin) { 954 var load, normalizedMap, normalizedMod, 955 bundleId = getOwn(bundlesMap, this.map.id), 956 name = this.map.name, 957 parentName = this.map.parentMap ? this.map.parentMap.name : null, 958 localRequire = context.makeRequire(map.parentMap, { 959 enableBuildCallback: true 960 }); 961 962 //If current map is not normalized, wait for that 963 //normalized name to load instead of continuing. 964 if (this.map.unnormalized) { 965 //Normalize the ID if the plugin allows it. 966 if (plugin.normalize) { 967 name = plugin.normalize(name, function (name) { 968 return normalize(name, parentName, true); 969 }) || ''; 970 } 971 972 //prefix and name should already be normalized, no need 973 //for applying map config again either. 974 normalizedMap = makeModuleMap(map.prefix + '!' + name, 975 this.map.parentMap); 976 on(normalizedMap, 977 'defined', bind(this, function (value) { 978 this.map.normalizedMap = normalizedMap; 979 this.init([], function () { return value; }, null, { 980 enabled: true, 981 ignore: true 982 }); 983 })); 984 985 normalizedMod = getOwn(registry, normalizedMap.id); 986 if (normalizedMod) { 987 //Mark this as a dependency for this plugin, so it 988 //can be traced for cycles. 989 this.depMaps.push(normalizedMap); 990 991 if (this.events.error) { 992 normalizedMod.on('error', bind(this, function (err) { 993 this.emit('error', err); 994 })); 995 } 996 normalizedMod.enable(); 997 } 998 999 return; 1000 } 1001 1002 //If a paths config, then just load that file instead to 1003 //resolve the plugin, as it is built into that paths layer. 1004 if (bundleId) { 1005 this.map.url = context.nameToUrl(bundleId); 1006 this.load(); 1007 return; 1008 } 1009 1010 load = bind(this, function (value) { 1011 this.init([], function () { return value; }, null, { 1012 enabled: true 1013 }); 1014 }); 1015 1016 load.error = bind(this, function (err) { 1017 this.inited = true; 1018 this.error = err; 1019 err.requireModules = [id]; 1020 1021 //Remove temp unnormalized modules for this module, 1022 //since they will never be resolved otherwise now. 1023 eachProp(registry, function (mod) { 1024 if (mod.map.id.indexOf(id + '_unnormalized') === 0) { 1025 cleanRegistry(mod.map.id); 1026 } 1027 }); 1028 1029 onError(err); 1030 }); 1031 1032 //Allow plugins to load other code without having to know the 1033 //context or how to 'complete' the load. 1034 load.fromText = bind(this, function (text, textAlt) { 1035 /*jslint evil: true */ 1036 var moduleName = map.name, 1037 moduleMap = makeModuleMap(moduleName), 1038 hasInteractive = useInteractive; 1039 1040 //As of 2.1.0, support just passing the text, to reinforce 1041 //fromText only being called once per resource. Still 1042 //support old style of passing moduleName but discard 1043 //that moduleName in favor of the internal ref. 1044 if (textAlt) { 1045 text = textAlt; 1046 } 1047 1048 //Turn off interactive script matching for IE for any define 1049 //calls in the text, then turn it back on at the end. 1050 if (hasInteractive) { 1051 useInteractive = false; 1052 } 1053 1054 //Prime the system by creating a module instance for 1055 //it. 1056 getModule(moduleMap); 1057 1058 //Transfer any config to this other module. 1059 if (hasProp(config.config, id)) { 1060 config.config[moduleName] = config.config[id]; 1061 } 1062 1063 try { 1064 req.exec(text); 1065 } catch (e) { 1066 return onError(makeError('fromtexteval', 1067 'fromText eval for ' + id + 1068 ' failed: ' + e, 1069 e, 1070 [id])); 1071 } 1072 1073 if (hasInteractive) { 1074 useInteractive = true; 1075 } 1076 1077 //Mark this as a dependency for the plugin 1078 //resource 1079 this.depMaps.push(moduleMap); 1080 1081 //Support anonymous modules. 1082 context.completeLoad(moduleName); 1083 1084 //Bind the value of that module to the value for this 1085 //resource ID. 1086 localRequire([moduleName], load); 1087 }); 1088 1089 //Use parentName here since the plugin's name is not reliable, 1090 //could be some weird string with no path that actually wants to 1091 //reference the parentName's path. 1092 plugin.load(map.name, localRequire, load, config); 1093 })); 1094 1095 context.enable(pluginMap, this); 1096 this.pluginMaps[pluginMap.id] = pluginMap; 1097 }, 1098 1099 enable: function () { 1100 enabledRegistry[this.map.id] = this; 1101 this.enabled = true; 1102 1103 //Set flag mentioning that the module is enabling, 1104 //so that immediate calls to the defined callbacks 1105 //for dependencies do not trigger inadvertent load 1106 //with the depCount still being zero. 1107 this.enabling = true; 1108 1109 //Enable each dependency 1110 each(this.depMaps, bind(this, function (depMap, i) { 1111 var id, mod, handler; 1112 1113 if (typeof depMap === 'string') { 1114 //Dependency needs to be converted to a depMap 1115 //and wired up to this module. 1116 depMap = makeModuleMap(depMap, 1117 (this.map.isDefine ? this.map : this.map.parentMap), 1118 false, 1119 !this.skipMap); 1120 this.depMaps[i] = depMap; 1121 1122 handler = getOwn(handlers, depMap.id); 1123 1124 if (handler) { 1125 this.depExports[i] = handler(this); 1126 return; 1127 } 1128 1129 this.depCount += 1; 1130 1131 on(depMap, 'defined', bind(this, function (depExports) { 1132 if (this.undefed) { 1133 return; 1134 } 1135 this.defineDep(i, depExports); 1136 this.check(); 1137 })); 1138 1139 if (this.errback) { 1140 on(depMap, 'error', bind(this, this.errback)); 1141 } else if (this.events.error) { 1142 // No direct errback on this module, but something 1143 // else is listening for errors, so be sure to 1144 // propagate the error correctly. 1145 on(depMap, 'error', bind(this, function(err) { 1146 this.emit('error', err); 1147 })); 1148 } 1149 } 1150 1151 id = depMap.id; 1152 mod = registry[id]; 1153 1154 //Skip special modules like 'require', 'exports', 'module' 1155 //Also, don't call enable if it is already enabled, 1156 //important in circular dependency cases. 1157 if (!hasProp(handlers, id) && mod && !mod.enabled) { 1158 context.enable(depMap, this); 1159 } 1160 })); 1161 1162 //Enable each plugin that is used in 1163 //a dependency 1164 eachProp(this.pluginMaps, bind(this, function (pluginMap) { 1165 var mod = getOwn(registry, pluginMap.id); 1166 if (mod && !mod.enabled) { 1167 context.enable(pluginMap, this); 1168 } 1169 })); 1170 1171 this.enabling = false; 1172 1173 this.check(); 1174 }, 1175 1176 on: function (name, cb) { 1177 var cbs = this.events[name]; 1178 if (!cbs) { 1179 cbs = this.events[name] = []; 1180 } 1181 cbs.push(cb); 1182 }, 1183 1184 emit: function (name, evt) { 1185 each(this.events[name], function (cb) { 1186 cb(evt); 1187 }); 1188 if (name === 'error') { 1189 //Now that the error handler was triggered, remove 1190 //the listeners, since this broken Module instance 1191 //can stay around for a while in the registry. 1192 delete this.events[name]; 1193 } 1194 } 1195 }; 1196 1197 function callGetModule(args) { 1198 //Skip modules already defined. 1199 if (!hasProp(defined, args[0])) { 1200 getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]); 1201 } 1202 } 1203 1204 function removeListener(node, func, name, ieName) { 1205 //Favor detachEvent because of IE9 1206 //issue, see attachEvent/addEventListener comment elsewhere 1207 //in this file. 1208 if (node.detachEvent && !isOpera) { 1209 //Probably IE. If not it will throw an error, which will be 1210 //useful to know. 1211 if (ieName) { 1212 node.detachEvent(ieName, func); 1213 } 1214 } else { 1215 node.removeEventListener(name, func, false); 1216 } 1217 } 1218 1219 /** 1220 * Given an event from a script node, get the requirejs info from it, 1221 * and then removes the event listeners on the node. 1222 * @param {Event} evt 1223 * @returns {Object} 1224 */ 1225 function getScriptData(evt) { 1226 //Using currentTarget instead of target for Firefox 2.0's sake. Not 1227 //all old browsers will be supported, but this one was easy enough 1228 //to support and still makes sense. 1229 var node = evt.currentTarget || evt.srcElement; 1230 1231 //Remove the listeners once here. 1232 removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange'); 1233 removeListener(node, context.onScriptError, 'error'); 1234 1235 return { 1236 node: node, 1237 id: node && node.getAttribute('data-requiremodule') 1238 }; 1239 } 1240 1241 function intakeDefines() { 1242 var args; 1243 1244 //Any defined modules in the global queue, intake them now. 1245 takeGlobalQueue(); 1246 1247 //Make sure any remaining defQueue items get properly processed. 1248 while (defQueue.length) { 1249 args = defQueue.shift(); 1250 if (args[0] === null) { 1251 return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + 1252 args[args.length - 1])); 1253 } else { 1254 //args are id, deps, factory. Should be normalized by the 1255 //define() function. 1256 callGetModule(args); 1257 } 1258 } 1259 context.defQueueMap = {}; 1260 } 1261 1262 context = { 1263 config: config, 1264 contextName: contextName, 1265 registry: registry, 1266 defined: defined, 1267 urlFetched: urlFetched, 1268 defQueue: defQueue, 1269 defQueueMap: {}, 1270 Module: Module, 1271 makeModuleMap: makeModuleMap, 1272 nextTick: req.nextTick, 1273 onError: onError, 1274 1275 /** 1276 * Set a configuration for the context. 1277 * @param {Object} cfg config object to integrate. 1278 */ 1279 configure: function (cfg) { 1280 //Make sure the baseUrl ends in a slash. 1281 if (cfg.baseUrl) { 1282 if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') { 1283 cfg.baseUrl += '/'; 1284 } 1285 } 1286 1287 // Convert old style urlArgs string to a function. 1288 if (typeof cfg.urlArgs === 'string') { 1289 var urlArgs = cfg.urlArgs; 1290 cfg.urlArgs = function(id, url) { 1291 return (url.indexOf('?') === -1 ? '?' : '&') + urlArgs; 1292 }; 1293 } 1294 1295 //Save off the paths since they require special processing, 1296 //they are additive. 1297 var shim = config.shim, 1298 objs = { 1299 paths: true, 1300 bundles: true, 1301 config: true, 1302 map: true 1303 }; 1304 1305 eachProp(cfg, function (value, prop) { 1306 if (objs[prop]) { 1307 if (!config[prop]) { 1308 config[prop] = {}; 1309 } 1310 mixin(config[prop], value, true, true); 1311 } else { 1312 config[prop] = value; 1313 } 1314 }); 1315 1316 //Reverse map the bundles 1317 if (cfg.bundles) { 1318 eachProp(cfg.bundles, function (value, prop) { 1319 each(value, function (v) { 1320 if (v !== prop) { 1321 bundlesMap[v] = prop; 1322 } 1323 }); 1324 }); 1325 } 1326 1327 //Merge shim 1328 if (cfg.shim) { 1329 eachProp(cfg.shim, function (value, id) { 1330 //Normalize the structure 1331 if (isArray(value)) { 1332 value = { 1333 deps: value 1334 }; 1335 } 1336 if ((value.exports || value.init) && !value.exportsFn) { 1337 value.exportsFn = context.makeShimExports(value); 1338 } 1339 shim[id] = value; 1340 }); 1341 config.shim = shim; 1342 } 1343 1344 //Adjust packages if necessary. 1345 if (cfg.packages) { 1346 each(cfg.packages, function (pkgObj) { 1347 var location, name; 1348 1349 pkgObj = typeof pkgObj === 'string' ? {name: pkgObj} : pkgObj; 1350 1351 name = pkgObj.name; 1352 location = pkgObj.location; 1353 if (location) { 1354 config.paths[name] = pkgObj.location; 1355 } 1356 1357 //Save pointer to main module ID for pkg name. 1358 //Remove leading dot in main, so main paths are normalized, 1359 //and remove any trailing .js, since different package 1360 //envs have different conventions: some use a module name, 1361 //some use a file name. 1362 config.pkgs[name] = pkgObj.name + '/' + (pkgObj.main || 'main') 1363 .replace(currDirRegExp, '') 1364 .replace(jsSuffixRegExp, ''); 1365 }); 1366 } 1367 1368 //If there are any "waiting to execute" modules in the registry, 1369 //update the maps for them, since their info, like URLs to load, 1370 //may have changed. 1371 eachProp(registry, function (mod, id) { 1372 //If module already has init called, since it is too 1373 //late to modify them, and ignore unnormalized ones 1374 //since they are transient. 1375 if (!mod.inited && !mod.map.unnormalized) { 1376 mod.map = makeModuleMap(id, null, true); 1377 } 1378 }); 1379 1380 //If a deps array or a config callback is specified, then call 1381 //require with those args. This is useful when require is defined as a 1382 //config object before require.js is loaded. 1383 if (cfg.deps || cfg.callback) { 1384 context.require(cfg.deps || [], cfg.callback); 1385 } 1386 }, 1387 1388 makeShimExports: function (value) { 1389 function fn() { 1390 var ret; 1391 if (value.init) { 1392 ret = value.init.apply(global, arguments); 1393 } 1394 return ret || (value.exports && getGlobal(value.exports)); 1395 } 1396 return fn; 1397 }, 1398 1399 makeRequire: function (relMap, options) { 1400 options = options || {}; 1401 1402 function localRequire(deps, callback, errback) { 1403 var id, map, requireMod; 1404 1405 if (options.enableBuildCallback && callback && isFunction(callback)) { 1406 callback.__requireJsBuild = true; 1407 } 1408 1409 if (typeof deps === 'string') { 1410 if (isFunction(callback)) { 1411 //Invalid call 1412 return onError(makeError('requireargs', 'Invalid require call'), errback); 1413 } 1414 1415 //If require|exports|module are requested, get the 1416 //value for them from the special handlers. Caveat: 1417 //this only works while module is being defined. 1418 if (relMap && hasProp(handlers, deps)) { 1419 return handlers[deps](registry[relMap.id]); 1420 } 1421 1422 //Synchronous access to one module. If require.get is 1423 //available (as in the Node adapter), prefer that. 1424 if (req.get) { 1425 return req.get(context, deps, relMap, localRequire); 1426 } 1427 1428 //Normalize module name, if it contains . or .. 1429 map = makeModuleMap(deps, relMap, false, true); 1430 id = map.id; 1431 1432 if (!hasProp(defined, id)) { 1433 return onError(makeError('notloaded', 'Module name "' + 1434 id + 1435 '" has not been loaded yet for context: ' + 1436 contextName + 1437 (relMap ? '' : '. Use require([])'))); 1438 } 1439 return defined[id]; 1440 } 1441 1442 //Grab defines waiting in the global queue. 1443 intakeDefines(); 1444 1445 //Mark all the dependencies as needing to be loaded. 1446 context.nextTick(function () { 1447 //Some defines could have been added since the 1448 //require call, collect them. 1449 intakeDefines(); 1450 1451 requireMod = getModule(makeModuleMap(null, relMap)); 1452 1453 //Store if map config should be applied to this require 1454 //call for dependencies. 1455 requireMod.skipMap = options.skipMap; 1456 1457 requireMod.init(deps, callback, errback, { 1458 enabled: true 1459 }); 1460 1461 checkLoaded(); 1462 }); 1463 1464 return localRequire; 1465 } 1466 1467 mixin(localRequire, { 1468 isBrowser: isBrowser, 1469 1470 /** 1471 * Converts a module name + .extension into an URL path. 1472 * *Requires* the use of a module name. It does not support using 1473 * plain URLs like nameToUrl. 1474 */ 1475 toUrl: function (moduleNamePlusExt) { 1476 var ext, 1477 index = moduleNamePlusExt.lastIndexOf('.'), 1478 segment = moduleNamePlusExt.split('/')[0], 1479 isRelative = segment === '.' || segment === '..'; 1480 1481 //Have a file extension alias, and it is not the 1482 //dots from a relative path. 1483 if (index !== -1 && (!isRelative || index > 1)) { 1484 ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length); 1485 moduleNamePlusExt = moduleNamePlusExt.substring(0, index); 1486 } 1487 1488 return context.nameToUrl(normalize(moduleNamePlusExt, 1489 relMap && relMap.id, true), ext, true); 1490 }, 1491 1492 defined: function (id) { 1493 return hasProp(defined, makeModuleMap(id, relMap, false, true).id); 1494 }, 1495 1496 specified: function (id) { 1497 id = makeModuleMap(id, relMap, false, true).id; 1498 return hasProp(defined, id) || hasProp(registry, id); 1499 } 1500 }); 1501 1502 //Only allow undef on top level require calls 1503 if (!relMap) { 1504 localRequire.undef = function (id) { 1505 //Bind any waiting define() calls to this context, 1506 //fix for #408 1507 takeGlobalQueue(); 1508 1509 var map = makeModuleMap(id, relMap, true), 1510 mod = getOwn(registry, id); 1511 1512 mod.undefed = true; 1513 removeScript(id); 1514 1515 delete defined[id]; 1516 delete urlFetched[map.url]; 1517 delete undefEvents[id]; 1518 1519 //Clean queued defines too. Go backwards 1520 //in array so that the splices do not 1521 //mess up the iteration. 1522 eachReverse(defQueue, function(args, i) { 1523 if (args[0] === id) { 1524 defQueue.splice(i, 1); 1525 } 1526 }); 1527 delete context.defQueueMap[id]; 1528 1529 if (mod) { 1530 //Hold on to listeners in case the 1531 //module will be attempted to be reloaded 1532 //using a different config. 1533 if (mod.events.defined) { 1534 undefEvents[id] = mod.events; 1535 } 1536 1537 cleanRegistry(id); 1538 } 1539 }; 1540 } 1541 1542 return localRequire; 1543 }, 1544 1545 /** 1546 * Called to enable a module if it is still in the registry 1547 * awaiting enablement. A second arg, parent, the parent module, 1548 * is passed in for context, when this method is overridden by 1549 * the optimizer. Not shown here to keep code compact. 1550 */ 1551 enable: function (depMap) { 1552 var mod = getOwn(registry, depMap.id); 1553 if (mod) { 1554 getModule(depMap).enable(); 1555 } 1556 }, 1557 1558 /** 1559 * Internal method used by environment adapters to complete a load event. 1560 * A load event could be a script load or just a load pass from a synchronous 1561 * load call. 1562 * @param {String} moduleName the name of the module to potentially complete. 1563 */ 1564 completeLoad: function (moduleName) { 1565 var found, args, mod, 1566 shim = getOwn(config.shim, moduleName) || {}, 1567 shExports = shim.exports; 1568 1569 takeGlobalQueue(); 1570 1571 while (defQueue.length) { 1572 args = defQueue.shift(); 1573 if (args[0] === null) { 1574 args[0] = moduleName; 1575 //If already found an anonymous module and bound it 1576 //to this name, then this is some other anon module 1577 //waiting for its completeLoad to fire. 1578 if (found) { 1579 break; 1580 } 1581 found = true; 1582 } else if (args[0] === moduleName) { 1583 //Found matching define call for this script! 1584 found = true; 1585 } 1586 1587 callGetModule(args); 1588 } 1589 context.defQueueMap = {}; 1590 1591 //Do this after the cycle of callGetModule in case the result 1592 //of those calls/init calls changes the registry. 1593 mod = getOwn(registry, moduleName); 1594 1595 if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) { 1596 if (config.enforceDefine && (!shExports || !getGlobal(shExports))) { 1597 if (hasPathFallback(moduleName)) { 1598 return; 1599 } else { 1600 return onError(makeError('nodefine', 1601 'No define call for ' + moduleName, 1602 null, 1603 [moduleName])); 1604 } 1605 } else { 1606 //A script that does not call define(), so just simulate 1607 //the call for it. 1608 callGetModule([moduleName, (shim.deps || []), shim.exportsFn]); 1609 } 1610 } 1611 1612 checkLoaded(); 1613 }, 1614 1615 /** 1616 * Converts a module name to a file path. Supports cases where 1617 * moduleName may actually be just an URL. 1618 * Note that it **does not** call normalize on the moduleName, 1619 * it is assumed to have already been normalized. This is an 1620 * internal API, not a public one. Use toUrl for the public API. 1621 */ 1622 nameToUrl: function (moduleName, ext, skipExt) { 1623 var paths, syms, i, parentModule, url, 1624 parentPath, bundleId, 1625 pkgMain = getOwn(config.pkgs, moduleName); 1626 1627 if (pkgMain) { 1628 moduleName = pkgMain; 1629 } 1630 1631 bundleId = getOwn(bundlesMap, moduleName); 1632 1633 if (bundleId) { 1634 return context.nameToUrl(bundleId, ext, skipExt); 1635 } 1636 1637 //If a colon is in the URL, it indicates a protocol is used and it is just 1638 //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?) 1639 //or ends with .js, then assume the user meant to use an url and not a module id. 1640 //The slash is important for protocol-less URLs as well as full paths. 1641 if (req.jsExtRegExp.test(moduleName)) { 1642 //Just a plain path, not module name lookup, so just return it. 1643 //Add extension if it is included. This is a bit wonky, only non-.js things pass 1644 //an extension, this method probably needs to be reworked. 1645 url = moduleName + (ext || ''); 1646 } else { 1647 //A module that needs to be converted to a path. 1648 paths = config.paths; 1649 1650 syms = moduleName.split('/'); 1651 //For each module name segment, see if there is a path 1652 //registered for it. Start with most specific name 1653 //and work up from it. 1654 for (i = syms.length; i > 0; i -= 1) { 1655 parentModule = syms.slice(0, i).join('/'); 1656 1657 parentPath = getOwn(paths, parentModule); 1658 if (parentPath) { 1659 //If an array, it means there are a few choices, 1660 //Choose the one that is desired 1661 if (isArray(parentPath)) { 1662 parentPath = parentPath[0]; 1663 } 1664 syms.splice(0, i, parentPath); 1665 break; 1666 } 1667 } 1668 1669 //Join the path parts together, then figure out if baseUrl is needed. 1670 url = syms.join('/'); 1671 url += (ext || (/^data\:|^blob\:|\?/.test(url) || skipExt ? '' : '.js')); 1672 url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url; 1673 } 1674 1675 return config.urlArgs && !/^blob\:/.test(url) ? 1676 url + config.urlArgs(moduleName, url) : url; 1677 }, 1678 1679 //Delegates to req.load. Broken out as a separate function to 1680 //allow overriding in the optimizer. 1681 load: function (id, url) { 1682 req.load(context, id, url); 1683 }, 1684 1685 /** 1686 * Executes a module callback function. Broken out as a separate function 1687 * solely to allow the build system to sequence the files in the built 1688 * layer in the right sequence. 1689 * 1690 * @private 1691 */ 1692 execCb: function (name, callback, args, exports) { 1693 return callback.apply(exports, args); 1694 }, 1695 1696 /** 1697 * callback for script loads, used to check status of loading. 1698 * 1699 * @param {Event} evt the event from the browser for the script 1700 * that was loaded. 1701 */ 1702 onScriptLoad: function (evt) { 1703 //Using currentTarget instead of target for Firefox 2.0's sake. Not 1704 //all old browsers will be supported, but this one was easy enough 1705 //to support and still makes sense. 1706 if (evt.type === 'load' || 1707 (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) { 1708 //Reset interactive script so a script node is not held onto for 1709 //to long. 1710 interactiveScript = null; 1711 1712 //Pull out the name of the module and the context. 1713 var data = getScriptData(evt); 1714 context.completeLoad(data.id); 1715 } 1716 }, 1717 1718 /** 1719 * Callback for script errors. 1720 */ 1721 onScriptError: function (evt) { 1722 var data = getScriptData(evt); 1723 if (!hasPathFallback(data.id)) { 1724 var parents = []; 1725 eachProp(registry, function(value, key) { 1726 if (key.indexOf('_@r') !== 0) { 1727 each(value.depMaps, function(depMap) { 1728 if (depMap.id === data.id) { 1729 parents.push(key); 1730 return true; 1731 } 1732 }); 1733 } 1734 }); 1735 return onError(makeError('scripterror', 'Script error for "' + data.id + 1736 (parents.length ? 1737 '", needed by: ' + parents.join(', ') : 1738 '"'), evt, [data.id])); 1739 } 1740 } 1741 }; 1742 1743 context.require = context.makeRequire(); 1744 return context; 1745 } 1746 1747 /** 1748 * Main entry point. 1749 * 1750 * If the only argument to require is a string, then the module that 1751 * is represented by that string is fetched for the appropriate context. 1752 * 1753 * If the first argument is an array, then it will be treated as an array 1754 * of dependency string names to fetch. An optional function callback can 1755 * be specified to execute when all of those dependencies are available. 1756 * 1757 * Make a local req variable to help Caja compliance (it assumes things 1758 * on a require that are not standardized), and to give a short 1759 * name for minification/local scope use. 1760 */ 1761 req = requirejs = function (deps, callback, errback, optional) { 1762 1763 //Find the right context, use default 1764 var context, config, 1765 contextName = defContextName; 1766 1767 // Determine if have config object in the call. 1768 if (!isArray(deps) && typeof deps !== 'string') { 1769 // deps is a config object 1770 config = deps; 1771 if (isArray(callback)) { 1772 // Adjust args if there are dependencies 1773 deps = callback; 1774 callback = errback; 1775 errback = optional; 1776 } else { 1777 deps = []; 1778 } 1779 } 1780 1781 if (config && config.context) { 1782 contextName = config.context; 1783 } 1784 1785 context = getOwn(contexts, contextName); 1786 if (!context) { 1787 context = contexts[contextName] = req.s.newContext(contextName); 1788 } 1789 1790 if (config) { 1791 context.configure(config); 1792 } 1793 1794 return context.require(deps, callback, errback); 1795 }; 1796 1797 /** 1798 * Support require.config() to make it easier to cooperate with other 1799 * AMD loaders on globally agreed names. 1800 */ 1801 req.config = function (config) { 1802 return req(config); 1803 }; 1804 1805 /** 1806 * Execute something after the current tick 1807 * of the event loop. Override for other envs 1808 * that have a better solution than setTimeout. 1809 * @param {Function} fn function to execute later. 1810 */ 1811 req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) { 1812 setTimeout(fn, 4); 1813 } : function (fn) { fn(); }; 1814 1815 /** 1816 * Export require as a global, but only if it does not already exist. 1817 */ 1818 if (!require) { 1819 require = req; 1820 } 1821 1822 req.version = version; 1823 1824 //Used to filter out dependencies that are already paths. 1825 req.jsExtRegExp = /^\/|:|\?|\.js$/; 1826 req.isBrowser = isBrowser; 1827 s = req.s = { 1828 contexts: contexts, 1829 newContext: newContext 1830 }; 1831 1832 //Create default context. 1833 req({}); 1834 1835 //Exports some context-sensitive methods on global require. 1836 each([ 1837 'toUrl', 1838 'undef', 1839 'defined', 1840 'specified' 1841 ], function (prop) { 1842 //Reference from contexts instead of early binding to default context, 1843 //so that during builds, the latest instance of the default context 1844 //with its config gets used. 1845 req[prop] = function () { 1846 var ctx = contexts[defContextName]; 1847 return ctx.require[prop].apply(ctx, arguments); 1848 }; 1849 }); 1850 1851 if (isBrowser) { 1852 head = s.head = document.getElementsByTagName('head')[0]; 1853 //If BASE tag is in play, using appendChild is a problem for IE6. 1854 //When that browser dies, this can be removed. Details in this jQuery bug: 1855 //http://dev.jquery.com/ticket/2709 1856 baseElement = document.getElementsByTagName('base')[0]; 1857 if (baseElement) { 1858 head = s.head = baseElement.parentNode; 1859 } 1860 } 1861 1862 /** 1863 * Any errors that require explicitly generates will be passed to this 1864 * function. Intercept/override it if you want custom error handling. 1865 * @param {Error} err the error object. 1866 */ 1867 req.onError = defaultOnError; 1868 1869 /** 1870 * Creates the node for the load command. Only used in browser envs. 1871 */ 1872 req.createNode = function (config, moduleName, url) { 1873 var node = config.xhtml ? 1874 document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') : 1875 document.createElement('script'); 1876 node.type = config.scriptType || 'text/javascript'; 1877 node.charset = 'utf-8'; 1878 node.async = true; 1879 return node; 1880 }; 1881 1882 /** 1883 * Does the request to load a module for the browser case. 1884 * Make this a separate function to allow other environments 1885 * to override it. 1886 * 1887 * @param {Object} context the require context to find state. 1888 * @param {String} moduleName the name of the module. 1889 * @param {Object} url the URL to the module. 1890 */ 1891 req.load = function (context, moduleName, url) { 1892 var config = (context && context.config) || {}, 1893 node; 1894 if (isBrowser) { 1895 //In the browser so use a script tag 1896 node = req.createNode(config, moduleName, url); 1897 1898 node.setAttribute('data-requirecontext', context.contextName); 1899 node.setAttribute('data-requiremodule', moduleName); 1900 1901 //Set up load listener. Test attachEvent first because IE9 has 1902 //a subtle issue in its addEventListener and script onload firings 1903 //that do not match the behavior of all other browsers with 1904 //addEventListener support, which fire the onload event for a 1905 //script right after the script execution. See: 1906 //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution 1907 //UNFORTUNATELY Opera implements attachEvent but does not follow the script 1908 //script execution mode. 1909 if (node.attachEvent && 1910 //Check if node.attachEvent is artificially added by custom script or 1911 //natively supported by browser 1912 //read https://github.com/requirejs/requirejs/issues/187 1913 //if we can NOT find [native code] then it must NOT natively supported. 1914 //in IE8, node.attachEvent does not have toString() 1915 //Note the test for "[native code" with no closing brace, see: 1916 //https://github.com/requirejs/requirejs/issues/273 1917 !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) && 1918 !isOpera) { 1919 //Probably IE. IE (at least 6-8) do not fire 1920 //script onload right after executing the script, so 1921 //we cannot tie the anonymous define call to a name. 1922 //However, IE reports the script as being in 'interactive' 1923 //readyState at the time of the define call. 1924 useInteractive = true; 1925 1926 node.attachEvent('onreadystatechange', context.onScriptLoad); 1927 //It would be great to add an error handler here to catch 1928 //404s in IE9+. However, onreadystatechange will fire before 1929 //the error handler, so that does not help. If addEventListener 1930 //is used, then IE will fire error before load, but we cannot 1931 //use that pathway given the connect.microsoft.com issue 1932 //mentioned above about not doing the 'script execute, 1933 //then fire the script load event listener before execute 1934 //next script' that other browsers do. 1935 //Best hope: IE10 fixes the issues, 1936 //and then destroys all installs of IE 6-9. 1937 //node.attachEvent('onerror', context.onScriptError); 1938 } else { 1939 node.addEventListener('load', context.onScriptLoad, false); 1940 node.addEventListener('error', context.onScriptError, false); 1941 } 1942 node.src = url; 1943 1944 //Calling onNodeCreated after all properties on the node have been 1945 //set, but before it is placed in the DOM. 1946 if (config.onNodeCreated) { 1947 config.onNodeCreated(node, config, moduleName, url); 1948 } 1949 1950 //For some cache cases in IE 6-8, the script executes before the end 1951 //of the appendChild execution, so to tie an anonymous define 1952 //call to the module name (which is stored on the node), hold on 1953 //to a reference to this node, but clear after the DOM insertion. 1954 currentlyAddingScript = node; 1955 if (baseElement) { 1956 head.insertBefore(node, baseElement); 1957 } else { 1958 head.appendChild(node); 1959 } 1960 currentlyAddingScript = null; 1961 1962 return node; 1963 } else if (isWebWorker) { 1964 try { 1965 //In a web worker, use importScripts. This is not a very 1966 //efficient use of importScripts, importScripts will block until 1967 //its script is downloaded and evaluated. However, if web workers 1968 //are in play, the expectation is that a build has been done so 1969 //that only one script needs to be loaded anyway. This may need 1970 //to be reevaluated if other use cases become common. 1971 1972 // Post a task to the event loop to work around a bug in WebKit 1973 // where the worker gets garbage-collected after calling 1974 // importScripts(): https://webkit.org/b/153317 1975 setTimeout(function() {}, 0); 1976 importScripts(url); 1977 1978 //Account for anonymous modules 1979 context.completeLoad(moduleName); 1980 } catch (e) { 1981 context.onError(makeError('importscripts', 1982 'importScripts failed for ' + 1983 moduleName + ' at ' + url, 1984 e, 1985 [moduleName])); 1986 } 1987 } 1988 }; 1989 1990 function getInteractiveScript() { 1991 if (interactiveScript && interactiveScript.readyState === 'interactive') { 1992 return interactiveScript; 1993 } 1994 1995 eachReverse(scripts(), function (script) { 1996 if (script.readyState === 'interactive') { 1997 return (interactiveScript = script); 1998 } 1999 }); 2000 return interactiveScript; 2001 } 2002 2003 //Look for a data-main script attribute, which could also adjust the baseUrl. 2004 if (isBrowser && !cfg.skipDataMain) { 2005 //Figure out baseUrl. Get it from the script tag with require.js in it. 2006 eachReverse(scripts(), function (script) { 2007 //Set the 'head' where we can append children by 2008 //using the script's parent. 2009 if (!head) { 2010 head = script.parentNode; 2011 } 2012 2013 //Look for a data-main attribute to set main script for the page 2014 //to load. If it is there, the path to data main becomes the 2015 //baseUrl, if it is not already set. 2016 dataMain = script.getAttribute('data-main'); 2017 if (dataMain) { 2018 //Preserve dataMain in case it is a path (i.e. contains '?') 2019 mainScript = dataMain; 2020 2021 //Set final baseUrl if there is not already an explicit one, 2022 //but only do so if the data-main value is not a loader plugin 2023 //module ID. 2024 if (!cfg.baseUrl && mainScript.indexOf('!') === -1) { 2025 //Pull off the directory of data-main for use as the 2026 //baseUrl. 2027 src = mainScript.split('/'); 2028 mainScript = src.pop(); 2029 subPath = src.length ? src.join('/') + '/' : './'; 2030 2031 cfg.baseUrl = subPath; 2032 } 2033 2034 //Strip off any trailing .js since mainScript is now 2035 //like a module name. 2036 mainScript = mainScript.replace(jsSuffixRegExp, ''); 2037 2038 //If mainScript is still a path, fall back to dataMain 2039 if (req.jsExtRegExp.test(mainScript)) { 2040 mainScript = dataMain; 2041 } 2042 2043 //Put the data-main script in the files to load. 2044 cfg.deps = cfg.deps ? cfg.deps.concat(mainScript) : [mainScript]; 2045 2046 return true; 2047 } 2048 }); 2049 } 2050 2051 /** 2052 * The function that handles definitions of modules. Differs from 2053 * require() in that a string for the module should be the first argument, 2054 * and the function to execute after dependencies are loaded should 2055 * return a value to define the module corresponding to the first argument's 2056 * name. 2057 */ 2058 define = function (name, deps, callback) { 2059 var node, context; 2060 2061 //Allow for anonymous modules 2062 if (typeof name !== 'string') { 2063 //Adjust args appropriately 2064 callback = deps; 2065 deps = name; 2066 name = null; 2067 } 2068 2069 //This module may not have dependencies 2070 if (!isArray(deps)) { 2071 callback = deps; 2072 deps = null; 2073 } 2074 2075 //If no name, and callback is a function, then figure out if it a 2076 //CommonJS thing with dependencies. 2077 if (!deps && isFunction(callback)) { 2078 deps = []; 2079 //Remove comments from the callback string, 2080 //look for require calls, and pull them into the dependencies, 2081 //but only if there are function args. 2082 if (callback.length) { 2083 callback 2084 .toString() 2085 .replace(commentRegExp, commentReplace) 2086 .replace(cjsRequireRegExp, function (match, dep) { 2087 deps.push(dep); 2088 }); 2089 2090 //May be a CommonJS thing even without require calls, but still 2091 //could use exports, and module. Avoid doing exports and module 2092 //work though if it just needs require. 2093 //REQUIRES the function to expect the CommonJS variables in the 2094 //order listed below. 2095 deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps); 2096 } 2097 } 2098 2099 //If in IE 6-8 and hit an anonymous define() call, do the interactive 2100 //work. 2101 if (useInteractive) { 2102 node = currentlyAddingScript || getInteractiveScript(); 2103 if (node) { 2104 if (!name) { 2105 name = node.getAttribute('data-requiremodule'); 2106 } 2107 context = contexts[node.getAttribute('data-requirecontext')]; 2108 } 2109 } 2110 2111 //Always save off evaluating the def call until the script onload handler. 2112 //This allows multiple modules to be in a file without prematurely 2113 //tracing dependencies, and allows for anonymous module support, 2114 //where the module name is not known until the script onload event 2115 //occurs. If no context, use the global queue, and get it processed 2116 //in the onscript load callback. 2117 if (context) { 2118 context.defQueue.push([name, deps, callback]); 2119 context.defQueueMap[name] = true; 2120 } else { 2121 globalDefQueue.push([name, deps, callback]); 2122 } 2123 }; 2124 2125 define.amd = { 2126 jQuery: true 2127 }; 2128 2129 /** 2130 * Executes the text. Normally just uses eval, but can be modified 2131 * to use a better, environment-specific call. Only used for transpiling 2132 * loader plugins, not for plain JS modules. 2133 * @param {String} text the text to execute/evaluate. 2134 */ 2135 req.exec = function (text) { 2136 /*jslint evil: true */ 2137 return eval(text); 2138 }; 2139 2140 //Set up with config info. 2141 req(cfg); 2142}(this
2142));
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