1/** vim: et:ts=4:sw=4:sts=4 2 * @license RequireJS 2.1.5 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved. 3 * Available via the MIT or new BSD license. 4 * see: http://github.com/jrburke/requirejs for details 5 */ 6//Not using strict: uneven strict support in browsers, #392, and causes 7//problems with requirejs.exec()/transpiler plugins that may not be strict. 8/*jslint regexp: true, nomen: true, sloppy: true */ 9/*global window, navigator, document, importScripts, setTimeout, opera */ 10 11var requirejs, require, define; 12(function (global) { 13 var req, s, head, baseElement, dataMain, src, 14 interactiveScript, currentlyAddingScript, mainScript, subPath, 15 version = '2.1.5', 16 commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg, 17 cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, 18 jsSuffixRegExp = /\.js$/, 19 currDirRegExp = /^\.\//, 20 op = Object.prototype, 21 ostring = op.toString, 22 hasOwn = op.hasOwnProperty, 23 ap = Array.prototype, 24 apsp = ap.splice, 25 isBrowser = !!(typeof window !== 'undefined' && navigator && document), 26 isWebWorker = !isBrowser && typeof importScripts !== 'undefined', 27 //PS3 indicates loaded and complete, but need to wait for complete 28 //specifically. Sequence is 'loading', 'loaded', execution, 29 // then 'complete'. The UA check is unfortunate, but not sure how 30 //to feature test w/o causing perf issues. 31 readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ? 32 /^complete$/ : /^(complete|loaded)$/, 33 defContextName = '_', 34 //Oh the tragedy, detecting opera. See the usage of isOpera for reason. 35 isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]', 36 contexts = {}, 37 cfg = {}, 38 globalDefQueue = [], 39 useInteractive = false; 40 41 function isFunction(it) { 42 return ostring.call(it) === '[object Function]'; 43 } 44 45 function isArray(it) { 46 return ostring.call(it) === '[object Array]'; 47 } 48 49 /** 50 * Helper function for iterating over an array. If the func returns 51 * a true value, it will break out of the loop. 52 */ 53 function each(ary, func) { 54 if (ary) { 55 var i; 56 for (i = 0; i < ary.length; i += 1) { 57 if (ary[i] && func(ary[i], i, ary)) { 58 break; 59 } 60 } 61 } 62 } 63 64 /** 65 * Helper function for iterating over an array backwards. If the func 66 * returns a true value, it will break out of the loop. 67 */ 68 function eachReverse(ary, func) { 69 if (ary) { 70 var i; 71 for (i = ary.length - 1; i > -1; i -= 1) { 72 if (ary[i] && func(ary[i], i, ary)) { 73 break; 74 } 75 } 76 } 77 } 78 79 function hasProp(obj, prop) { 80 return hasOwn.call(obj, prop); 81 } 82 83 function getOwn(obj, prop) { 84 return hasProp(obj, prop) && obj[prop]; 85 } 86 87 /** 88 * Cycles over properties in an object and calls a function for each 89 * property value. If the function returns a truthy value, then the 90 * iteration is stopped. 91 */ 92 function eachProp(obj, func) { 93 var prop; 94 for (prop in obj) { 95 if (hasProp(obj, prop)) { 96 if (func(obj[prop], prop)) { 97 break; 98 } 99 } 100 } 101 } 102 103 /** 104 * Simple function to mix in properties from source into target, 105 * but only if target does not already have a property of the same name. 106 */ 107 function mixin(target, source, force, deepStringMixin) { 108 if (source) { 109 eachProp(source, function (value, prop) { 110 if (force || !hasProp(target, prop)) { 111 if (deepStringMixin && typeof value !== 'string') { 112 if (!target[prop]) { 113 target[prop] = {}; 114 } 115 mixin(target[prop], value, force, deepStringMixin); 116 } else { 117 target[prop] = value; 118 } 119 } 120 }); 121 } 122 return target; 123 } 124 125 //Similar to Function.prototype.bind, but the 'this' object is specified 126 //first, since it is easier to read/figure out what 'this' will be. 127 function bind(obj, fn) { 128 return function () { 129 return fn.apply(obj, arguments); 130 }; 131 } 132 133 function scripts() { 134 return document.getElementsByTagName('script'); 135 } 136 137 //Allow getting a global that expressed in 138 //dot notation, like 'a.b.c'. 139 function getGlobal(value) { 140 if (!value) { 141 return value; 142 } 143 var g = global; 144 each(value.split('.'), function (part) { 145 g = g[part]; 146 }); 147 return g; 148 } 149 150 /** 151 * Constructs an error with a pointer to an URL with more information. 152 * @param {String} id the error ID that maps to an ID on a web page. 153 * @param {String} message human readable error. 154 * @param {Error} [err] the original error, if there is one. 155 * 156 * @returns {Error} 157 */ 158 function makeError(id, msg, err, requireModules) { 159 var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id); 160 e.requireType = id; 161 e.requireModules = requireModules; 162 if (err) { 163 e.originalError = err; 164 } 165 return e; 166 } 167 168 if (typeof define !== 'undefined') { 169 //If a define is already in play via another AMD loader, 170 //do not overwrite. 171 return; 172 } 173 174 if (typeof requirejs !== 'undefined') { 175 if (isFunction(requirejs)) { 176 //Do not overwrite and existing requirejs instance. 177 return; 178 } 179 cfg = requirejs; 180 requirejs = undefined; 181 } 182 183 //Allow for a require config object 184 if (typeof require !== 'undefined' && !isFunction(require)) { 185 //assume it is a config object. 186 cfg = require; 187 require = undefined; 188 } 189 190 function newContext(contextName) { 191 var inCheckLoaded, Module, context, handlers, 192 checkLoadedTimeoutId, 193 config = { 194 //Defaults. Do not set a default for map 195 //config to speed up normalize(), which 196 //will run faster if there is no default. 197 waitSeconds: 7, 198 baseUrl: './', 199 paths: {}, 200 pkgs: {}, 201 shim: {}, 202 config: {} 203 }, 204 registry = {}, 205 //registry of just enabled modules, to speed 206 //cycle breaking code when lots of modules 207 //are registered, but not activated. 208 enabledRegistry = {}, 209 undefEvents = {}, 210 defQueue = [], 211 defined = {}, 212 urlFetched = {}, 213 requireCounter = 1, 214 unnormalizedCounter = 1; 215 216 /** 217 * Trims the . and .. from an array of path segments. 218 * It will keep a leading path segment if a .. will become 219 * the first path segment, to help with module name lookups, 220 * which act like paths, but can be remapped. But the end result, 221 * all paths that use this function should look normalized. 222 * NOTE: this method MODIFIES the input array. 223 * @param {Array} ary the array of path segments. 224 */ 225 function trimDots(ary) { 226 var i, part; 227 for (i = 0; ary[i]; i += 1) { 228 part = ary[i]; 229 if (part === '.') { 230 ary.splice(i, 1); 231 i -= 1; 232 } else if (part === '..') { 233 if (i === 1 && (ary[2] === '..' || ary[0] === '..')) { 234 //End of the line. Keep at least one non-dot 235 //path segment at the front so it can be mapped 236 //correctly to disk. Otherwise, there is likely 237 //no path mapping for a path starting with '..'. 238 //This can still fail, but catches the most reasonable 239 //uses of .. 240 break; 241 } else if (i > 0) { 242 ary.splice(i - 1, 2); 243 i -= 2; 244 } 245 } 246 } 247 } 248 249 /** 250 * Given a relative module name, like ./something, normalize it to 251 * a real name that can be mapped to a path. 252 * @param {String} name the relative name 253 * @param {String} baseName a real name that the name arg is relative 254 * to. 255 * @param {Boolean} applyMap apply the map config to the value. Should 256 * only be done if this normalization is for a dependency ID. 257 * @returns {String} normalized name 258 */ 259 function normalize(name, baseName, applyMap) { 260 var pkgName, pkgConfig, mapValue, nameParts, i, j, nameSegment, 261 foundMap, foundI, foundStarMap, starI, 262 baseParts = baseName && baseName.split('/'), 263 normalizedBaseParts = baseParts, 264 map = config.map, 265 starMap = map && map['*']; 266 267 //Adjust any relative paths. 268 if (name && name.charAt(0) === '.') { 269 //If have a base name, try to normalize against it, 270 //otherwise, assume it is a top-level require that will 271 //be relative to baseUrl in the end. 272 if (baseName) { 273 if (getOwn(config.pkgs, baseName)) { 274 //If the baseName is a package name, then just treat it as one 275 //name to concat the name with. 276 normalizedBaseParts = baseParts = [baseName]; 277 } else { 278 //Convert baseName to array, and lop off the last part, 279 //so that . matches that 'directory' and not name of the baseName's 280 //module. For instance, baseName of 'one/two/three', maps to 281 //'one/two/three.js', but we want the directory, 'one/two' for 282 //this normalization. 283 normalizedBaseParts = baseParts.slice(0, baseParts.length - 1); 284 } 285 286 name = normalizedBaseParts.concat(name.split('/')); 287 trimDots(name); 288 289 //Some use of packages may use a . path to reference the 290 //'main' module name, so normalize for that. 291 pkgConfig = getOwn(config.pkgs, (pkgName = name[0])); 292 name = name.join('/'); 293 if (pkgConfig && name === pkgName + '/' + pkgConfig.main) { 294 name = pkgName; 295 } 296 } else if (name.indexOf('./') === 0) { 297 // No baseName, so this is ID is resolved relative 298 // to baseUrl, pull off the leading dot. 299 name = name.substring(2); 300 } 301 } 302 303 //Apply map config if available. 304 if (applyMap && map && (baseParts || starMap)) { 305 nameParts = name.split('/'); 306 307 for (i = nameParts.length; i > 0; i -= 1) { 308 nameSegment = nameParts.slice(0, i).join('/'); 309 310 if (baseParts) { 311 //Find the longest baseName segment match in the config. 312 //So, do joins on the biggest to smallest lengths of baseParts. 313 for (j = baseParts.length; j > 0; j -= 1) { 314 mapValue = getOwn(map, baseParts.slice(0, j).join('/')); 315 316 //baseName segment has config, find if it has one for 317 //this name. 318 if (mapValue) { 319 mapValue = getOwn(mapValue, nameSegment); 320 if (mapValue) { 321 //Match, update name to the new value. 322 foundMap = mapValue; 323 foundI = i; 324 break; 325 } 326 } 327 } 328 } 329 330 if (foundMap) { 331 break; 332 } 333 334 //Check for a star map match, but just hold on to it, 335 //if there is a shorter segment match later in a matching 336 //config, then favor over this star map. 337 if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) { 338 foundStarMap = getOwn(starMap, nameSegment); 339 starI = i; 340 } 341 } 342 343 if (!foundMap && foundStarMap) { 344 foundMap = foundStarMap; 345 foundI = starI; 346 } 347 348 if (foundMap) { 349 nameParts.splice(0, foundI, foundMap); 350 name = nameParts.join('/'); 351 } 352 } 353 354 return name; 355 } 356 357 function removeScript(name) { 358 if (isBrowser) { 359 each(scripts(), function (scriptNode) { 360 if (scriptNode.getAttribute('data-requiremodule') === name && 361 scriptNode.getAttribute('data-requirecontext') === context.contextName) { 362 scriptNode.parentNode.removeChild(scriptNode); 363 return true; 364 } 365 }); 366 } 367 } 368 369 function hasPathFallback(id) { 370 var pathConfig = getOwn(config.paths, id); 371 if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) { 372 removeScript(id); 373 //Pop off the first array value, since it failed, and 374 //retry 375 pathConfig.shift(); 376 context.require.undef(id); 377 context.require([id]); 378 return true; 379 } 380 } 381 382 //Turns a plugin!resource to [plugin, resource] 383 //with the plugin being undefined if the name 384 //did not have a plugin prefix. 385 function splitPrefix(name) { 386 var prefix, 387 index = name ? name.indexOf('!') : -1; 388 if (index > -1) { 389 prefix = name.substring(0, index); 390 name = name.substring(index + 1, name.length); 391 } 392 return [prefix, name]; 393 } 394 395 /** 396 * Creates a module mapping that includes plugin prefix, module 397 * name, and path. If parentModuleMap is provided it will 398 * also normalize the name via require.normalize() 399 * 400 * @param {String} name the module name 401 * @param {String} [parentModuleMap] parent module map 402 * for the module name, used to resolve relative names. 403 * @param {Boolean} isNormalized: is the ID already normalized. 404 * This is true if this call is done for a define() module ID. 405 * @param {Boolean} applyMap: apply the map config to the ID. 406 * Should only be true if this map is for a dependency. 407 * 408 * @returns {Object} 409 */ 410 function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) { 411 var url, pluginModule, suffix, nameParts, 412 prefix = null, 413 parentName = parentModuleMap ? parentModuleMap.name : null, 414 originalName = name, 415 isDefine = true, 416 normalizedName = ''; 417 418 //If no name, then it means it is a require call, generate an 419 //internal name. 420 if (!name) { 421 isDefine = false; 422 name = '_@r' + (requireCounter += 1); 423 } 424 425 nameParts = splitPrefix(name); 426 prefix = nameParts[0]; 427 name = nameParts[1]; 428 429 if (prefix) { 430 prefix = normalize(prefix, parentName, applyMap); 431 pluginModule = getOwn(defined, prefix); 432 } 433 434 //Account for relative paths if there is a base name. 435 if (name) { 436 if (prefix) { 437 if (pluginModule && pluginModule.normalize) { 438 //Plugin is loaded, use its normalize method. 439 normalizedName = pluginModule.normalize(name, function (name) { 440 return normalize(name, parentName, applyMap); 441 }); 442 } else { 443 normalizedName = normalize(name, parentName, applyMap); 444 } 445 } else { 446 //A regular module. 447 normalizedName = normalize(name, parentName, applyMap); 448 449 //Normalized name may be a plugin ID due to map config 450 //application in normalize. The map config values must 451 //already be normalized, so do not need to redo that part. 452 nameParts = splitPrefix(normalizedName); 453 prefix = nameParts[0]; 454 normalizedName = nameParts[1]; 455 isNormalized = true; 456 457 url = context.nameToUrl(normalizedName); 458 } 459 } 460 461 //If the id is a plugin id that cannot be determined if it needs 462 //normalization, stamp it with a unique ID so two matching relative 463 //ids that may conflict can be separate. 464 suffix = prefix && !pluginModule && !isNormalized ? 465 '_unnormalized' + (unnormalizedCounter += 1) : 466 ''; 467 468 return { 469 prefix: prefix, 470 name: normalizedName, 471 parentMap: parentModuleMap, 472 unnormalized: !!suffix, 473 url: url, 474 originalName: originalName, 475 isDefine: isDefine, 476 id: (prefix ? 477 prefix + '!' + normalizedName : 478 normalizedName) + suffix 479 }; 480 } 481 482 function getModule(depMap) { 483 var id = depMap.id, 484 mod = getOwn(registry, id); 485 486 if (!mod) { 487 mod = registry[id] = new context.Module(depMap); 488 } 489 490 return mod; 491 } 492 493 function on(depMap, name, fn) { 494 var id = depMap.id, 495 mod = getOwn(registry, id); 496 497 if (hasProp(defined, id) && 498 (!mod || mod.defineEmitComplete)) { 499 if (name === 'defined') { 500 fn(defined[id]); 501 } 502 } else { 503 getModule(depMap).on(name, fn); 504 } 505 } 506 507 function onError(err, errback) { 508 var ids = err.requireModules, 509 notified = false; 510 511 if (errback) { 512 errback(err); 513 } else { 514 each(ids, function (id) { 515 var mod = getOwn(registry, id); 516 if (mod) { 517 //Set error on module, so it skips timeout checks. 518 mod.error = err; 519 if (mod.events.error) { 520 notified = true; 521 mod.emit('error', err); 522 } 523 } 524 }); 525 526 if (!notified) { 527 req.onError(err); 528 } 529 } 530 } 531 532 /** 533 * Internal method to transfer globalQueue items to this context's 534 * defQueue. 535 */ 536 function takeGlobalQueue() { 537 //Push all the globalDefQueue items into the context's defQueue 538 if (globalDefQueue.length) { 539 //Array splice in the values since the context code has a 540 //local var ref to defQueue, so cannot just reassign the one 541 //on context. 542 apsp.apply(defQueue, 543 [defQueue.length - 1, 0].concat(globalDefQueue)); 544 globalDefQueue = []; 545 } 546 } 547 548 handlers = { 549 'require': function (mod) { 550 if (mod.require) { 551 return mod.require; 552 } else { 553 return (mod.require = context.makeRequire(mod.map)); 554 } 555 }, 556 'exports': function (mod) { 557 mod.usingExports = true; 558 if (mod.map.isDefine) { 559 if (mod.exports) { 560 return mod.exports; 561 } else { 562 return (mod.exports = defined[mod.map.id] = {}); 563 } 564 } 565 }, 566 'module': function (mod) { 567 if (mod.module) { 568 return mod.module; 569 } else { 570 return (mod.module = { 571 id: mod.map.id, 572 uri: mod.map.url, 573 config: function () { 574 return (config.config && getOwn(config.config, mod.map.id)) || {}; 575 }, 576 exports: defined[mod.map.id] 577 }); 578 } 579 } 580 }; 581 582 function cleanRegistry(id) { 583 //Clean up machinery used for waiting modules. 584 delete registry[id]; 585 delete enabledRegistry[id]; 586 } 587 588 function breakCycle(mod, traced, processed) { 589 var id = mod.map.id; 590 591 if (mod.error) { 592 mod.emit('error', mod.error); 593 } else { 594 traced[id] = true; 595 each(mod.depMaps, function (depMap, i) { 596 var depId = depMap.id, 597 dep = getOwn(registry, depId); 598 599 //Only force things that have not completed 600 //being defined, so still in the registry, 601 //and only if it has not been matched up 602 //in the module already. 603 if (dep && !mod.depMatched[i] && !processed[depId]) { 604 if (getOwn(traced, depId)) { 605 mod.defineDep(i, defined[depId]); 606 mod.check(); //pass false? 607 } else { 608 breakCycle(dep, traced, processed); 609 } 610 } 611 }); 612 processed[id] = true; 613 } 614 } 615 616 function checkLoaded() { 617 var map, modId, err, usingPathFallback, 618 waitInterval = config.waitSeconds * 1000, 619 //It is possible to disable the wait interval by using waitSeconds of 0. 620 expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(), 621 noLoads = [], 622 reqCalls = [], 623 stillLoading = false, 624 needCycleCheck = true; 625 626 //Do not bother if this call was a result of a cycle break. 627 if (inCheckLoaded) { 628 return; 629 } 630 631 inCheckLoaded = true; 632 633 //Figure out the state of all the modules. 634 eachProp(enabledRegistry, function (mod) { 635 map = mod.map; 636 modId = map.id; 637 638 //Skip things that are not enabled or in error state. 639 if (!mod.enabled) { 640 return; 641 } 642 643 if (!map.isDefine) { 644 reqCalls.push(mod); 645 } 646 647 if (!mod.error) { 648 //If the module should be executed, and it has not 649 //been inited and time is up, remember it. 650 if (!mod.inited && expired) { 651 if (hasPathFallback(modId)) { 652 usingPathFallback = true; 653 stillLoading = true; 654 } else { 655 noLoads.push(modId); 656 removeScript(modId); 657 } 658 } else if (!mod.inited && mod.fetched && map.isDefine) { 659 stillLoading = true; 660 if (!map.prefix) { 661 //No reason to keep looking for unfinished 662 //loading. If the only stillLoading is a 663 //plugin resource though, keep going, 664 //because it may be that a plugin resource 665 //is waiting on a non-plugin cycle. 666 return (needCycleCheck = false); 667 } 668 } 669 } 670 }); 671 672 if (expired && noLoads.length) { 673 //If wait time expired, throw error of unloaded modules. 674 err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads); 675 err.contextName = context.contextName; 676 return onError(err); 677 } 678 679 //Not expired, check for a cycle. 680 if (needCycleCheck) { 681 each(reqCalls, function (mod) { 682 breakCycle(mod, {}, {}); 683 }); 684 } 685 686 //If still waiting on loads, and the waiting load is something 687 //other than a plugin resource, or there are still outstanding 688 //scripts, then just try back later. 689 if ((!expired || usingPathFallback) && stillLoading) { 690 //Something is still waiting to load. Wait for it, but only 691 //if a timeout is not already in effect. 692 if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) { 693 checkLoadedTimeoutId = setTimeout(function () { 694 checkLoadedTimeoutId = 0; 695 checkLoaded(); 696 }, 50); 697 } 698 } 699 700 inCheckLoaded = false; 701 } 702 703 Module = function (map) { 704 this.events = getOwn(undefEvents, map.id) || {}; 705 this.map = map; 706 this.shim = getOwn(config.shim, map.id); 707 this.depExports = []; 708 this.depMaps = []; 709 this.depMatched = []; 710 this.pluginMaps = {}; 711 this.depCount = 0; 712 713 /* this.exports this.factory 714 this.depMaps = [], 715 this.enabled, this.fetched 716 */ 717 }; 718 719 Module.prototype = { 720 init: function (depMaps, factory, errback, options) { 721 options = options || {}; 722 723 //Do not do more inits if already done. Can happen if there 724 //are multiple define calls for the same module. That is not 725 //a normal, common case, but it is also not unexpected. 726 if (this.inited) { 727 return; 728 } 729 730 this.factory = factory; 731 732 if (errback) { 733 //Register for errors on this module. 734 this.on('error', errback); 735 } else if (this.events.error) { 736 //If no errback already, but there are error listeners 737 //on this module, set up an errback to pass to the deps. 738 errback = bind(this, function (err) { 739 this.emit('error', err); 740 }); 741 } 742 743 //Do a copy of the dependency array, so that 744 //source inputs are not modified. For example 745 //"shim" deps are passed in here directly, and 746 //doing a direct modification of the depMaps array 747 //would affect that config. 748 this.depMaps = depMaps && depMaps.slice(0); 749 750 this.errback = errback; 751 752 //Indicate this module has be initialized 753 this.inited = true; 754 755 this.ignore = options.ignore; 756 757 //Could have option to init this module in enabled mode, 758 //or could have been previously marked as enabled. However, 759 //the dependencies are not known until init is called. So 760 //if enabled previously, now trigger dependencies as enabled. 761 if (options.enabled || this.enabled) { 762 //Enable this module and dependencies. 763 //Will call this.check() 764 this.enable(); 765 } else { 766 this.check(); 767 } 768 }, 769 770 defineDep: function (i, depExports) { 771 //Because of cycles, defined callback for a given 772 //export can be called more than once. 773 if (!this.depMatched[i]) { 774 this.depMatched[i] = true; 775 this.depCount -= 1; 776 this.depExports[i] = depExports; 777 } 778 }, 779 780 fetch: function () { 781 if (this.fetched) { 782 return; 783 } 784 this.fetched = true; 785 786 context.startTime = (new Date()).getTime(); 787 788 var map = this.map; 789 790 //If the manager is for a plugin managed resource, 791 //ask the plugin to load it now. 792 if (this.shim) { 793 context.makeRequire(this.map, { 794 enableBuildCallback: true 795 })(this.shim.deps || [], bind(this, function () { 796 return map.prefix ? this.callPlugin() : this.load(); 797 })); 798 } else { 799 //Regular dependency. 800 return map.prefix ? this.callPlugin() : this.load(); 801 } 802 }, 803 804 load: function () { 805 var url = this.map.url; 806 807 //Regular dependency. 808 if (!urlFetched[url]) { 809 urlFetched[url] = true; 810 context.load(this.map.id, url); 811 } 812 }, 813 814 /** 815 * Checks if the module is ready to define itself, and if so, 816 * define it. 817 */ 818 check: function () { 819 if (!this.enabled || this.enabling) { 820 return; 821 } 822 823 var err, cjsModule, 824 id = this.map.id, 825 depExports = this.depExports, 826 exports = this.exports, 827 factory = this.factory; 828 829 if (!this.inited) { 830 this.fetch(); 831 } else if (this.error) { 832 this.emit('error', this.error); 833 } else if (!this.defining) { 834 //The factory could trigger another require call 835 //that would result in checking this module to 836 //define itself again. If already in the process 837 //of doing that, skip this work. 838 this.defining = true; 839 840 if (this.depCount < 1 && !this.defined) { 841 if (isFunction(factory)) { 842 //If there is an error listener, favor passing 843 //to that instead of throwing an error. 844 if (this.events.error) { 845 try { 846 exports = context.execCb(id, factory, depExports, exports); 847 } catch (e) { 848 err = e; 849 } 850 } else { 851 exports = context.execCb(id, factory, depExports, exports); 852 } 853 854 if (this.map.isDefine) { 855 //If setting exports via 'module' is in play, 856 //favor that over return value and exports. After that, 857 //favor a non-undefined return value over exports use. 858 cjsModule = this.module; 859 if (cjsModule && 860 cjsModule.exports !== undefined && 861 //Make sure it is not already the exports value 862 cjsModule.exports !== this.exports) { 863 exports = cjsModule.exports; 864 } else if (exports === undefined && this.usingExports) { 865 //exports already set the defined value. 866 exports = this.exports; 867 } 868 } 869 870 if (err) { 871 err.requireMap = this.map; 872 err.requireModules = [this.map.id]; 873 err.requireType = 'define'; 874 return onError((this.error = err)); 875 } 876 877 } else { 878 //Just a literal value 879 exports = factory; 880 } 881 882 this.exports = exports; 883 884 if (this.map.isDefine && !this.ignore) { 885 defined[id] = exports; 886 887 if (req.onResourceLoad) { 888 req.onResourceLoad(context, this.map, this.depMaps); 889 } 890 } 891 892 //Clean up 893 cleanRegistry(id); 894 895 this.defined = true; 896 } 897 898 //Finished the define stage. Allow calling check again 899 //to allow define notifications below in the case of a 900 //cycle. 901 this.defining = false; 902 903 if (this.defined && !this.defineEmitted) { 904 this.defineEmitted = true; 905 this.emit('defined', this.exports); 906 this.defineEmitComplete = true; 907 } 908 909 } 910 }, 911 912 callPlugin: function () { 913 var map = this.map, 914 id = map.id, 915 //Map already normalized the prefix. 916 pluginMap = makeModuleMap(map.prefix); 917 918 //Mark this as a dependency for this plugin, so it 919 //can be traced for cycles. 920 this.depMaps.push(pluginMap); 921 922 on(pluginMap, 'defined', bind(this, function (plugin) { 923 var load, normalizedMap, normalizedMod, 924 name = this.map.name, 925 parentName = this.map.parentMap ? this.map.parentMap.name : null, 926 localRequire = context.makeRequire(map.parentMap, { 927 enableBuildCallback: true 928 }); 929 930 //If current map is not normalized, wait for that 931 //normalized name to load instead of continuing. 932 if (this.map.unnormalized) { 933 //Normalize the ID if the plugin allows it. 934 if (plugin.normalize) { 935 name = plugin.normalize(name, function (name) { 936 return normalize(name, parentName, true); 937 }) || ''; 938 } 939 940 //prefix and name should already be normalized, no need 941 //for applying map config again either. 942 normalizedMap = makeModuleMap(map.prefix + '!' + name, 943 this.map.parentMap); 944 on(normalizedMap, 945 'defined', bind(this, function (value) { 946 this.init([], function () { return value; }, null, { 947 enabled: true, 948 ignore: true 949 }); 950 })); 951 952 normalizedMod = getOwn(registry, normalizedMap.id); 953 if (normalizedMod) { 954 //Mark this as a dependency for this plugin, so it 955 //can be traced for cycles. 956 this.depMaps.push(normalizedMap); 957 958 if (this.events.error) { 959 normalizedMod.on('error', bind(this, function (err) { 960 this.emit('error', err); 961 })); 962 } 963 normalizedMod.enable(); 964 } 965 966 return; 967 } 968 969 load = bind(this, function (value) { 970 this.init([], function () { return value; }, null, { 971 enabled: true 972 }); 973 }); 974 975 load.error = bind(this, function (err) { 976 this.inited = true; 977 this.error = err; 978 err.requireModules = [id]; 979 980 //Remove temp unnormalized modules for this module, 981 //since they will never be resolved otherwise now. 982 eachProp(registry, function (mod) { 983 if (mod.map.id.indexOf(id + '_unnormalized') === 0) { 984 cleanRegistry(mod.map.id); 985 } 986 }); 987 988 onError(err); 989 }); 990 991 //Allow plugins to load other code without having to know the 992 //context or how to 'complete' the load. 993 load.fromText = bind(this, function (text, textAlt) { 994 /*jslint evil: true */ 995 var moduleName = map.name, 996 moduleMap = makeModuleMap(moduleName), 997 hasInteractive = useInteractive; 998 999 //As of 2.1.0, support just passing the text, to reinforce 1000 //fromText only being called once per resource. Still 1001 //support old style of passing moduleName but discard 1002 //that moduleName in favor of the internal ref. 1003 if (textAlt) { 1004 text = textAlt; 1005 } 1006 1007 //Turn off interactive script matching for IE for any define 1008 //calls in the text, then turn it back on at the end. 1009 if (hasInteractive) { 1010 useInteractive = false; 1011 } 1012 1013 //Prime the system by creating a module instance for 1014 //it. 1015 getModule(moduleMap); 1016 1017 //Transfer any config to this other module. 1018 if (hasProp(config.config, id)) { 1019 config.config[moduleName] = config.config[id]; 1020 } 1021 1022 try { 1023 req.exec(text); 1024 } catch (e) { 1025 return onError(makeError('fromtexteval', 1026 'fromText eval for ' + id + 1027 ' failed: ' + e, 1028 e, 1029 [id])); 1030 } 1031 1032 if (hasInteractive) { 1033 useInteractive = true; 1034 } 1035 1036 //Mark this as a dependency for the plugin 1037 //resource 1038 this.depMaps.push(moduleMap); 1039 1040 //Support anonymous modules. 1041 context.completeLoad(moduleName); 1042 1043 //Bind the value of that module to the value for this 1044 //resource ID. 1045 localRequire([moduleName], load); 1046 }); 1047 1048 //Use parentName here since the plugin's name is not reliable, 1049 //could be some weird string with no path that actually wants to 1050 //reference the parentName's path. 1051 plugin.load(map.name, localRequire, load, config); 1052 })); 1053 1054 context.enable(pluginMap, this); 1055 this.pluginMaps[pluginMap.id] = pluginMap; 1056 }, 1057 1058 enable: function () { 1059 enabledRegistry[this.map.id] = this; 1060 this.enabled = true; 1061 1062 //Set flag mentioning that the module is enabling, 1063 //so that immediate calls to the defined callbacks 1064 //for dependencies do not trigger inadvertent load 1065 //with the depCount still being zero. 1066 this.enabling = true; 1067 1068 //Enable each dependency 1069 each(this.depMaps, bind(this, function (depMap, i) { 1070 var id, mod, handler; 1071 1072 if (typeof depMap === 'string') { 1073 //Dependency needs to be converted to a depMap 1074 //and wired up to this module. 1075 depMap = makeModuleMap(depMap, 1076 (this.map.isDefine ? this.map : this.map.parentMap), 1077 false, 1078 !this.skipMap); 1079 this.depMaps[i] = depMap; 1080 1081 handler = getOwn(handlers, depMap.id); 1082 1083 if (handler) { 1084 this.depExports[i] = handler(this); 1085 return; 1086 } 1087 1088 this.depCount += 1; 1089 1090 on(depMap, 'defined', bind(this, function (depExports) { 1091 this.defineDep(i, depExports); 1092 this.check(); 1093 })); 1094 1095 if (this.errback) { 1096 on(depMap, 'error', this.errback); 1097 } 1098 } 1099 1100 id = depMap.id; 1101 mod = registry[id]; 1102 1103 //Skip special modules like 'require', 'exports', 'module' 1104 //Also, don't call enable if it is already enabled, 1105 //important in circular dependency cases. 1106 if (!hasProp(handlers, id) && mod && !mod.enabled) { 1107 context.enable(depMap, this); 1108 } 1109 })); 1110 1111 //Enable each plugin that is used in 1112 //a dependency 1113 eachProp(this.pluginMaps, bind(this, function (pluginMap) { 1114 var mod = getOwn(registry, pluginMap.id); 1115 if (mod && !mod.enabled) { 1116 context.enable(pluginMap, this); 1117 } 1118 })); 1119 1120 this.enabling = false; 1121 1122 this.check(); 1123 }, 1124 1125 on: function (name, cb) { 1126 var cbs = this.events[name]; 1127 if (!cbs) { 1128 cbs = this.events[name] = []; 1129 } 1130 cbs.push(cb); 1131 }, 1132 1133 emit: function (name, evt) { 1134 each(this.events[name], function (cb) { 1135 cb(evt); 1136 }); 1137 if (name === 'error') { 1138 //Now that the error handler was triggered, remove 1139 //the listeners, since this broken Module instance 1140 //can stay around for a while in the registry. 1141 delete this.events[name]; 1142 } 1143 } 1144 }; 1145 1146 function callGetModule(args) { 1147 //Skip modules already defined. 1148 if (!hasProp(defined, args[0])) { 1149 getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]); 1150 } 1151 } 1152 1153 function removeListener(node, func, name, ieName) { 1154 //Favor detachEvent because of IE9 1155 //issue, see attachEvent/addEventListener comment elsewhere 1156 //in this file. 1157 if (node.detachEvent && !isOpera) { 1158 //Probably IE. If not it will throw an error, which will be 1159 //useful to know. 1160 if (ieName) { 1161 node.detachEvent(ieName, func); 1162 } 1163 } else { 1164 node.removeEventListener(name, func, false); 1165 } 1166 } 1167 1168 /** 1169 * Given an event from a script node, get the requirejs info from it, 1170 * and then removes the event listeners on the node. 1171 * @param {Event} evt 1172 * @returns {Object} 1173 */ 1174 function getScriptData(evt) { 1175 //Using currentTarget instead of target for Firefox 2.0's sake. Not 1176 //all old browsers will be supported, but this one was easy enough 1177 //to support and still makes sense. 1178 var node = evt.currentTarget || evt.srcElement; 1179 1180 //Remove the listeners once here. 1181 removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange'); 1182 removeListener(node, context.onScriptError, 'error'); 1183 1184 return { 1185 node: node, 1186 id: node && node.getAttribute('data-requiremodule') 1187 }; 1188 } 1189 1190 function intakeDefines() { 1191 var args; 1192 1193 //Any defined modules in the global queue, intake them now. 1194 takeGlobalQueue(); 1195 1196 //Make sure any remaining defQueue items get properly processed. 1197 while (defQueue.length) { 1198 args = defQueue.shift(); 1199 if (args[0] === null) { 1200 return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1])); 1201 } else { 1202 //args are id, deps, factory. Should be normalized by the 1203 //define() function. 1204 callGetModule(args); 1205 } 1206 } 1207 } 1208 1209 context = { 1210 config: config, 1211 contextName: contextName, 1212 registry: registry, 1213 defined: defined, 1214 urlFetched: urlFetched, 1215 defQueue: defQueue, 1216 Module: Module, 1217 makeModuleMap: makeModuleMap, 1218 nextTick: req.nextTick, 1219 onError: onError, 1220 1221 /** 1222 * Set a configuration for the context. 1223 * @param {Object} cfg config object to integrate. 1224 */ 1225 configure: function (cfg) { 1226 //Make sure the baseUrl ends in a slash. 1227 if (cfg.baseUrl) { 1228 if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') { 1229 cfg.baseUrl += '/'; 1230 } 1231 } 1232 1233 //Save off the paths and packages since they require special processing, 1234 //they are additive. 1235 var pkgs = config.pkgs, 1236 shim = config.shim, 1237 objs = { 1238 paths: true, 1239 config: true, 1240 map: true 1241 }; 1242 1243 eachProp(cfg, function (value, prop) { 1244 if (objs[prop]) { 1245 if (prop === 'map') { 1246 if (!config.map) { 1247 config.map = {}; 1248 } 1249 mixin(config[prop], value, true, true); 1250 } else { 1251 mixin(config[prop], value, true); 1252 } 1253 } else { 1254 config[prop] = value; 1255 } 1256 }); 1257 1258 //Merge shim 1259 if (cfg.shim) { 1260 eachProp(cfg.shim, function (value, id) { 1261 //Normalize the structure 1262 if (isArray(value)) { 1263 value = { 1264 deps: value 1265 }; 1266 } 1267 if ((value.exports || value.init) && !value.exportsFn) { 1268 value.exportsFn = context.makeShimExports(value); 1269 } 1270 shim[id] = value; 1271 }); 1272 config.shim = shim; 1273 } 1274 1275 //Adjust packages if necessary. 1276 if (cfg.packages) { 1277 each(cfg.packages, function (pkgObj) { 1278 var location; 1279 1280 pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj; 1281 location = pkgObj.location; 1282 1283 //Create a brand new object on pkgs, since currentPackages can 1284 //be passed in again, and config.pkgs is the internal transformed 1285 //state for all package configs. 1286 pkgs[pkgObj.name] = { 1287 name: pkgObj.name, 1288 location: location || pkgObj.name, 1289 //Remove leading dot in main, so main paths are normalized, 1290 //and remove any trailing .js, since different package 1291 //envs have different conventions: some use a module name, 1292 //some use a file name. 1293 main: (pkgObj.main || 'main') 1294 .replace(currDirRegExp, '') 1295 .replace(jsSuffixRegExp, '') 1296 }; 1297 }); 1298 1299 //Done with modifications, assing packages back to context config 1300 config.pkgs = pkgs; 1301 } 1302 1303 //If there are any "waiting to execute" modules in the registry, 1304 //update the maps for them, since their info, like URLs to load, 1305 //may have changed. 1306 eachProp(registry, function (mod, id) { 1307 //If module already has init called, since it is too 1308 //late to modify them, and ignore unnormalized ones 1309 //since they are transient. 1310 if (!mod.inited && !mod.map.unnormalized) { 1311 mod.map = makeModuleMap(id); 1312 } 1313 }); 1314 1315 //If a deps array or a config callback is specified, then call 1316 //require with those args. This is useful when require is defined as a 1317 //config object before require.js is loaded. 1318 if (cfg.deps || cfg.callback) { 1319 context.require(cfg.deps || [], cfg.callback); 1320 } 1321 }, 1322 1323 makeShimExports: function (value) { 1324 function fn() { 1325 var ret; 1326 if (value.init) { 1327 ret = value.init.apply(global, arguments); 1328 } 1329 return ret || (value.exports && getGlobal(value.exports)); 1330 } 1331 return fn; 1332 }, 1333 1334 makeRequire: function (relMap, options) { 1335 options = options || {}; 1336 1337 function localRequire(deps, callback, errback) { 1338 var id, map, requireMod; 1339 1340 if (options.enableBuildCallback && callback && isFunction(callback)) { 1341 callback.__requireJsBuild = true; 1342 } 1343 1344 if (typeof deps === 'string') { 1345 if (isFunction(callback)) { 1346 //Invalid call 1347 return onError(makeError('requireargs', 'Invalid require call'), errback); 1348 } 1349 1350 //If require|exports|module are requested, get the 1351 //value for them from the special handlers. Caveat: 1352 //this only works while module is being defined. 1353 if (relMap && hasProp(handlers, deps)) { 1354 return handlers[deps](registry[relMap.id]); 1355 } 1356 1357 //Synchronous access to one module. If require.get is 1358 //available (as in the Node adapter), prefer that. 1359 if (req.get) { 1360 return req.get(context, deps, relMap, localRequire); 1361 } 1362 1363 //Normalize module name, if it contains . or .. 1364 map = makeModuleMap(deps, relMap, false, true); 1365 id = map.id; 1366 1367 if (!hasProp(defined, id)) { 1368 return onError(makeError('notloaded', 'Module name "' + 1369 id + 1370 '" has not been loaded yet for context: ' + 1371 contextName + 1372 (relMap ? '' : '. Use require([])'))); 1373 } 1374 return defined[id]; 1375 } 1376 1377 //Grab defines waiting in the global queue. 1378 intakeDefines(); 1379 1380 //Mark all the dependencies as needing to be loaded. 1381 context.nextTick(function () { 1382 //Some defines could have been added since the 1383 //require call, collect them. 1384 intakeDefines(); 1385 1386 requireMod = getModule(makeModuleMap(null, relMap)); 1387 1388 //Store if map config should be applied to this require 1389 //call for dependencies. 1390 requireMod.skipMap = options.skipMap; 1391 1392 requireMod.init(deps, callback, errback, { 1393 enabled: true 1394 }); 1395 1396 checkLoaded(); 1397 }); 1398 1399 return localRequire; 1400 } 1401 1402 mixin(localRequire, { 1403 isBrowser: isBrowser, 1404 1405 /** 1406 * Converts a module name + .extension into an URL path. 1407 * *Requires* the use of a module name. It does not support using 1408 * plain URLs like nameToUrl. 1409 */ 1410 toUrl: function (moduleNamePlusExt) { 1411 var ext, 1412 index = moduleNamePlusExt.lastIndexOf('.'), 1413 segment = moduleNamePlusExt.split('/')[0], 1414 isRelative = segment === '.' || segment === '..'; 1415 1416 //Have a file extension alias, and it is not the 1417 //dots from a relative path. 1418 if (index !== -1 && (!isRelative || index > 1)) { 1419 ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length); 1420 moduleNamePlusExt = moduleNamePlusExt.substring(0, index); 1421 } 1422 1423 return context.nameToUrl(normalize(moduleNamePlusExt, 1424 relMap && relMap.id, true), ext, true); 1425 }, 1426 1427 defined: function (id) { 1428 return hasProp(defined, makeModuleMap(id, relMap, false, true).id); 1429 }, 1430 1431 specified: function (id) { 1432 id = makeModuleMap(id, relMap, false, true).id; 1433 return hasProp(defined, id) || hasProp(registry, id); 1434 } 1435 }); 1436 1437 //Only allow undef on top level require calls 1438 if (!relMap) { 1439 localRequire.undef = function (id) { 1440 //Bind any waiting define() calls to this context, 1441 //fix for #408 1442 takeGlobalQueue(); 1443 1444 var map = makeModuleMap(id, relMap, true), 1445 mod = getOwn(registry, id); 1446 1447 delete defined[id]; 1448 delete urlFetched[map.url]; 1449 delete undefEvents[id]; 1450 1451 if (mod) { 1452 //Hold on to listeners in case the 1453 //module will be attempted to be reloaded 1454 //using a different config. 1455 if (mod.events.defined) { 1456 undefEvents[id] = mod.events; 1457 } 1458 1459 cleanRegistry(id); 1460 } 1461 }; 1462 } 1463 1464 return localRequire; 1465 }, 1466 1467 /** 1468 * Called to enable a module if it is still in the registry 1469 * awaiting enablement. A second arg, parent, the parent module, 1470 * is passed in for context, when this method is overriden by 1471 * the optimizer. Not shown here to keep code compact. 1472 */ 1473 enable: function (depMap) { 1474 var mod = getOwn(registry, depMap.id); 1475 if (mod) { 1476 getModule(depMap).enable(); 1477 } 1478 }, 1479 1480 /** 1481 * Internal method used by environment adapters to complete a load event. 1482 * A load event could be a script load or just a load pass from a synchronous 1483 * load call. 1484 * @param {String} moduleName the name of the module to potentially complete. 1485 */ 1486 completeLoad: function (moduleName) { 1487 var found, args, mod, 1488 shim = getOwn(config.shim, moduleName) || {}, 1489 shExports = shim.exports; 1490 1491 takeGlobalQueue(); 1492 1493 while (defQueue.length) { 1494 args = defQueue.shift(); 1495 if (args[0] === null) { 1496 args[0] = moduleName; 1497 //If already found an anonymous module and bound it 1498 //to this name, then this is some other anon module 1499 //waiting for its completeLoad to fire. 1500 if (found) { 1501 break; 1502 } 1503 found = true; 1504 } else if (args[0] === moduleName) { 1505 //Found matching define call for this script! 1506 found = true; 1507 } 1508 1509 callGetModule(args); 1510 } 1511 1512 //Do this after the cycle of callGetModule in case the result 1513 //of those calls/init calls changes the registry. 1514 mod = getOwn(registry, moduleName); 1515 1516 if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) { 1517 if (config.enforceDefine && (!shExports || !getGlobal(shExports))) { 1518 if (hasPathFallback(moduleName)) { 1519 return; 1520 } else { 1521 return onError(makeError('nodefine', 1522 'No define call for ' + moduleName, 1523 null, 1524 [moduleName])); 1525 } 1526 } else { 1527 //A script that does not call define(), so just simulate 1528 //the call for it. 1529 callGetModule([moduleName, (shim.deps || []), shim.exportsFn]); 1530 } 1531 } 1532 1533 checkLoaded(); 1534 }, 1535 1536 /** 1537 * Converts a module name to a file path. Supports cases where 1538 * moduleName may actually be just an URL. 1539 * Note that it **does not** call normalize on the moduleName, 1540 * it is assumed to have already been normalized. This is an 1541 * internal API, not a public one. Use toUrl for the public API. 1542 */ 1543 nameToUrl: function (moduleName, ext, skipExt) { 1544 var paths, pkgs, pkg, pkgPath, syms, i, parentModule, url, 1545 parentPath; 1546 1547 //If a colon is in the URL, it indicates a protocol is used and it is just 1548 //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?) 1549 //or ends with .js, then assume the user meant to use an url and not a module id. 1550 //The slash is important for protocol-less URLs as well as full paths. 1551 if (req.jsExtRegExp.test(moduleName)) { 1552 //Just a plain path, not module name lookup, so just return it. 1553 //Add extension if it is included. This is a bit wonky, only non-.js things pass 1554 //an extension, this method probably needs to be reworked. 1555 url = moduleName + (ext || ''); 1556 } else { 1557 //A module that needs to be converted to a path. 1558 paths = config.paths; 1559 pkgs = config.pkgs; 1560 1561 syms = moduleName.split('/'); 1562 //For each module name segment, see if there is a path 1563 //registered for it. Start with most specific name 1564 //and work up from it. 1565 for (i = syms.length; i > 0; i -= 1) { 1566 parentModule = syms.slice(0, i).join('/'); 1567 pkg = getOwn(pkgs, parentModule); 1568 parentPath = getOwn(paths, parentModule); 1569 if (parentPath) { 1570 //If an array, it means there are a few choices, 1571 //Choose the one that is desired 1572 if (isArray(parentPath)) { 1573 parentPath = parentPath[0]; 1574 } 1575 syms.splice(0, i, parentPath); 1576 break; 1577 } else if (pkg) { 1578 //If module name is just the package name, then looking 1579 //for the main module. 1580 if (moduleName === pkg.name) { 1581 pkgPath = pkg.location + '/' + pkg.main; 1582 } else { 1583 pkgPath = pkg.location; 1584 } 1585 syms.splice(0, i, pkgPath); 1586 break; 1587 } 1588 } 1589 1590 //Join the path parts together, then figure out if baseUrl is needed. 1591 url = syms.join('/'); 1592 url += (ext || (/\?/.test(url) || skipExt ? '' : '.js')); 1593 url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url; 1594 } 1595 1596 return config.urlArgs ? url + 1597 ((url.indexOf('?') === -1 ? '?' : '&') + 1598 config.urlArgs) : url; 1599 }, 1600 1601 //Delegates to req.load. Broken out as a separate function to 1602 //allow overriding in the optimizer. 1603 load: function (id, url) { 1604 req.load(context, id, url); 1605 }, 1606 1607 /** 1608 * Executes a module callack function. Broken out as a separate function 1609 * solely to allow the build system to sequence the files in the built 1610 * layer in the right sequence. 1611 * 1612 * @private 1613 */ 1614 execCb: function (name, callback, args, exports) { 1615 return callback.apply(exports, args); 1616 }, 1617 1618 /** 1619 * callback for script loads, used to check status of loading. 1620 * 1621 * @param {Event} evt the event from the browser for the script 1622 * that was loaded. 1623 */ 1624 onScriptLoad: function (evt) { 1625 //Using currentTarget instead of target for Firefox 2.0's sake. Not 1626 //all old browsers will be supported, but this one was easy enough 1627 //to support and still makes sense. 1628 if (evt.type === 'load' || 1629 (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) { 1630 //Reset interactive script so a script node is not held onto for 1631 //to long. 1632 interactiveScript = null; 1633 1634 //Pull out the name of the module and the context. 1635 var data = getScriptData(evt); 1636 context.completeLoad(data.id); 1637 } 1638 }, 1639 1640 /** 1641 * Callback for script errors. 1642 */ 1643 onScriptError: function (evt) { 1644 var data = getScriptData(evt); 1645 if (!hasPathFallback(data.id)) { 1646 return onError(makeError('scripterror', 'Script error', evt, [data.id])); 1647 } 1648 } 1649 }; 1650 1651 context.require = context.makeRequire(); 1652 return context; 1653 } 1654 1655 /** 1656 * Main entry point. 1657 * 1658 * If the only argument to require is a string, then the module that 1659 * is represented by that string is fetched for the appropriate context. 1660 * 1661 * If the first argument is an array, then it will be treated as an array 1662 * of dependency string names to fetch. An optional function callback can 1663 * be specified to execute when all of those dependencies are available. 1664 * 1665 * Make a local req variable to help Caja compliance (it assumes things 1666 * on a require that are not standardized), and to give a short 1667 * name for minification/local scope use. 1668 */ 1669 req = requirejs = function (deps, callback, errback, optional) { 1670 1671 //Find the right context, use default 1672 var context, config, 1673 contextName = defContextName; 1674 1675 // Determine if have config object in the call. 1676 if (!isArray(deps) && typeof deps !== 'string') { 1677 // deps is a config object 1678 config = deps; 1679 if (isArray(callback)) { 1680 // Adjust args if there are dependencies 1681 deps = callback; 1682 callback = errback; 1683 errback = optional; 1684 } else { 1685 deps = []; 1686 } 1687 } 1688 1689 if (config && config.context) { 1690 contextName = config.context; 1691 } 1692 1693 context = getOwn(contexts, contextName); 1694 if (!context) { 1695 context = contexts[contextName] = req.s.newContext(contextName); 1696 } 1697 1698 if (config) { 1699 context.configure(config); 1700 } 1701 1702 return context.require(deps, callback, errback); 1703 }; 1704 1705 /** 1706 * Support require.config() to make it easier to cooperate with other 1707 * AMD loaders on globally agreed names. 1708 */ 1709 req.config = function (config) { 1710 return req(config); 1711 }; 1712 1713 /** 1714 * Execute something after the current tick 1715 * of the event loop. Override for other envs 1716 * that have a better solution than setTimeout. 1717 * @param {Function} fn function to execute later. 1718 */ 1719 req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) { 1720 setTimeout(fn, 4); 1721 } : function (fn) { fn(); }; 1722 1723 /** 1724 * Export require as a global, but only if it does not already exist. 1725 */ 1726 if (!require) { 1727 require = req; 1728 } 1729 1730 req.version = version; 1731 1732 //Used to filter out dependencies that are already paths. 1733 req.jsExtRegExp = /^\/|:|\?|\.js$/; 1734 req.isBrowser = isBrowser; 1735 s = req.s = { 1736 contexts: contexts, 1737 newContext: newContext 1738 }; 1739 1740 //Create default context. 1741 req({}); 1742 1743 //Exports some context-sensitive methods on global require. 1744 each([ 1745 'toUrl', 1746 'undef', 1747 'defined', 1748 'specified' 1749 ], function (prop) { 1750 //Reference from contexts instead of early binding to default context, 1751 //so that during builds, the latest instance of the default context 1752 //with its config gets used. 1753 req[prop] = function () { 1754 var ctx = contexts[defContextName]; 1755 return ctx.require[prop].apply(ctx, arguments); 1756 }; 1757 }); 1758 1759 if (isBrowser) { 1760 head = s.head = document.getElementsByTagName('head')[0]; 1761 //If BASE tag is in play, using appendChild is a problem for IE6. 1762 //When that browser dies, this can be removed. Details in this jQuery bug: 1763 //http://dev.jquery.com/ticket/2709 1764 baseElement = document.getElementsByTagName('base')[0]; 1765 if (baseElement) { 1766 head = s.head = baseElement.parentNode; 1767 } 1768 } 1769 1770 /** 1771 * Any errors that require explicitly generates will be passed to this 1772 * function. Intercept/override it if you want custom error handling. 1773 * @param {Error} err the error object. 1774 */ 1775 req.onError = function (err) { 1776 throw err; 1777 }; 1778 1779 /** 1780 * Does the request to load a module for the browser case. 1781 * Make this a separate function to allow other environments 1782 * to override it. 1783 * 1784 * @param {Object} context the require context to find state. 1785 * @param {String} moduleName the name of the module. 1786 * @param {Object} url the URL to the module. 1787 */ 1788 req.load = function (context, moduleName, url) { 1789 var config = (context && context.config) || {}, 1790 node; 1791 if (isBrowser) { 1792 //In the browser so use a script tag 1793 node = config.xhtml ? 1794 document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') : 1795 document.createElement('script'); 1796 node.type = config.scriptType || 'text/javascript'; 1797 node.charset = 'utf-8'; 1798 node.async = true; 1799 1800 node.setAttribute('data-requirecontext', context.contextName); 1801 node.setAttribute('data-requiremodule', moduleName); 1802 1803 //Set up load listener. Test attachEvent first because IE9 has 1804 //a subtle issue in its addEventListener and script onload firings 1805 //that do not match the behavior of all other browsers with 1806 //addEventListener support, which fire the onload event for a 1807 //script right after the script execution. See: 1808 //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution 1809 //UNFORTUNATELY Opera implements attachEvent but does not follow the script 1810 //script execution mode. 1811 if (node.attachEvent && 1812 //Check if node.attachEvent is artificially added by custom script or 1813 //natively supported by browser 1814 //read https://github.com/jrburke/requirejs/issues/187 1815 //if we can NOT find [native code] then it must NOT natively supported. 1816 //in IE8, node.attachEvent does not have toString() 1817 //Note the test for "[native code" with no closing brace, see: 1818 //https://github.com/jrburke/requirejs/issues/273 1819 !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) && 1820 !isOpera) { 1821 //Probably IE. IE (at least 6-8) do not fire 1822 //script onload right after executing the script, so 1823 //we cannot tie the anonymous define call to a name. 1824 //However, IE reports the script as being in 'interactive' 1825 //readyState at the time of the define call. 1826 useInteractive = true; 1827 1828 node.attachEvent('onreadystatechange', context.onScriptLoad); 1829 //It would be great to add an error handler here to catch 1830 //404s in IE9+. However, onreadystatechange will fire before 1831 //the error handler, so that does not help. If addEventListener 1832 //is used, then IE will fire error before load, but we cannot 1833 //use that pathway given the connect.microsoft.com issue 1834 //mentioned above about not doing the 'script execute, 1835 //then fire the script load event listener before execute 1836 //next script' that other browsers do. 1837 //Best hope: IE10 fixes the issues, 1838 //and then destroys all installs of IE 6-9. 1839 //node.attachEvent('onerror', context.onScriptError); 1840 } else { 1841 node.addEventListener('load', context.onScriptLoad, false); 1842 node.addEventListener('error', context.onScriptError, false); 1843 } 1844 node.src = url; 1845 1846 //For some cache cases in IE 6-8, the script executes before the end 1847 //of the appendChild execution, so to tie an anonymous define 1848 //call to the module name (which is stored on the node), hold on 1849 //to a reference to this node, but clear after the DOM insertion. 1850 currentlyAddingScript = node; 1851 if (baseElement) { 1852 head.insertBefore(node, baseElement); 1853 } else { 1854 head.appendChild(node); 1855 } 1856 currentlyAddingScript = null; 1857 1858 return node; 1859 } else if (isWebWorker) { 1860 try { 1861 //In a web worker, use importScripts. This is not a very 1862 //efficient use of importScripts, importScripts will block until 1863 //its script is downloaded and evaluated. However, if web workers 1864 //are in play, the expectation that a build has been done so that 1865 //only one script needs to be loaded anyway. This may need to be 1866 //reevaluated if other use cases become common. 1867 importScripts(url); 1868 1869 //Account for anonymous modules 1870 context.completeLoad(moduleName); 1871 } catch (e) { 1872 context.onError(makeError('importscripts', 1873 'importScripts failed for ' + 1874 moduleName + ' at ' + url, 1875 e, 1876 [moduleName])); 1877 } 1878 } 1879 }; 1880 1881 function getInteractiveScript() { 1882 if (interactiveScript && interactiveScript.readyState === 'interactive') { 1883 return interactiveScript; 1884 } 1885 1886 eachReverse(scripts(), function (script) { 1887 if (script.readyState === 'interactive') { 1888 return (interactiveScript = script); 1889 } 1890 }); 1891 return interactiveScript; 1892 } 1893 1894 //Look for a data-main script attribute, which could also adjust the baseUrl. 1895 if (isBrowser) { 1896 //Figure out baseUrl. Get it from the script tag with require.js in it. 1897 eachReverse(scripts(), function (script) { 1898 //Set the 'head' where we can append children by 1899 //using the script's parent. 1900 if (!head) { 1901 head = script.parentNode; 1902 } 1903 1904 //Look for a data-main attribute to set main script for the page 1905 //to load. If it is there, the path to data main becomes the 1906 //baseUrl, if it is not already set. 1907 dataMain = script.getAttribute('data-main'); 1908 if (dataMain) { 1909 //Set final baseUrl if there is not already an explicit one. 1910 if (!cfg.baseUrl) { 1911 //Pull off the directory of data-main for use as the 1912 //baseUrl. 1913 src = dataMain.split('/'); 1914 mainScript = src.pop(); 1915 subPath = src.length ? src.join('/') + '/' : './'; 1916 1917 cfg.baseUrl = subPath; 1918 dataMain = mainScript; 1919 } 1920 1921 //Strip off any trailing .js since dataMain is now 1922 //like a module name. 1923 dataMain = dataMain.replace(jsSuffixRegExp, ''); 1924 1925 //Put the data-main script in the files to load. 1926 cfg.deps = cfg.deps ? cfg.deps.concat(dataMain) : [dataMain]; 1927 1928 return true; 1929 } 1930 }); 1931 } 1932 1933 /** 1934 * The function that handles definitions of modules. Differs from 1935 * require() in that a string for the module should be the first argument, 1936 * and the function to execute after dependencies are loaded should 1937 * return a value to define the module corresponding to the first argument's 1938 * name. 1939 */ 1940 define = function (name, deps, callback) { 1941 var node, context; 1942 1943 //Allow for anonymous modules 1944 if (typeof name !== 'string') { 1945 //Adjust args appropriately 1946 callback = deps; 1947 deps = name; 1948 name = null; 1949 } 1950 1951 //This module may not have dependencies 1952 if (!isArray(deps)) { 1953 callback = deps; 1954 deps = []; 1955 } 1956 1957 //If no name, and callback is a function, then figure out if it a 1958 //CommonJS thing with dependencies. 1959 if (!deps.length && isFunction(callback)) { 1960 //Remove comments from the callback string, 1961 //look for require calls, and pull them into the dependencies, 1962 //but only if there are function args. 1963 if (callback.length) { 1964 callback 1965 .toString() 1966 .replace(commentRegExp, '') 1967 .replace(cjsRequireRegExp, function (match, dep) { 1968 deps.push(dep); 1969 }); 1970 1971 //May be a CommonJS thing even without require calls, but still 1972 //could use exports, and module. Avoid doing exports and module 1973 //work though if it just needs require. 1974 //REQUIRES the function to expect the CommonJS variables in the 1975 //order listed below. 1976 deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps); 1977 } 1978 } 1979 1980 //If in IE 6-8 and hit an anonymous define() call, do the interactive 1981 //work. 1982 if (useInteractive) { 1983 node = currentlyAddingScript || getInteractiveScript(); 1984 if (node) { 1985 if (!name) { 1986 name = node.getAttribute('data-requiremodule'); 1987 } 1988 context = contexts[node.getAttribute('data-requirecontext')]; 1989 } 1990 } 1991 1992 //Always save off evaluating the def call until the script onload handler. 1993 //This allows multiple modules to be in a file without prematurely 1994 //tracing dependencies, and allows for anonymous module support, 1995 //where the module name is not known until the script onload event 1996 //occurs. If no context, use the global queue, and get it processed 1997 //in the onscript load callback. 1998 (context ? context.defQueue : globalDefQueue).push([name, deps, callback]); 1999 }; 2000 2001 define.amd = { 2002 jQuery: true 2003 }; 2004 2005 2006 /** 2007 * Executes the text. Normally just uses eval, but can be modified 2008 * to use a better, environment-specific call. Only used for transpiling 2009 * loader plugins, not for plain JS modules. 2010 * @param {String} text the text to execute/evaluate. 2011 */ 2012 req.exec = function (text) { 2013 /*jslint evil: true */ 2014 return eval(text); 2015 }; 2016 2017 //Set up with config info. 2018 req(cfg); 2019}(this)); 2020