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1/** vim: et:ts=4:sw=4:sts=4 2 * @license RequireJS 2.1.16 Copyright (c) 2010-2015, 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 = '2.1.16', 16 commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg, 17 cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, 18 jsSuffixRegExp = /\.js$/, 19 currDirRegExp = /^\.\//, 20 op = Object.prototype, 21 ostring = op.toString, 22 hasOwn = op.hasOwnProperty, 23 ap = Array.prototype, 24 apsp = ap.splice, 25 isBrowser = !!(typeof window !== 'undefined' && typeof navigator !== 'undefined' && window.document), 26 isWebWorker = !isBrowser && typeof importScripts !== 'undefined', 27 //PS3 indicates loaded and complete, but need to wait for complete 28 //specifically. Sequence is 'loading', 'loaded', execution, 29 // then 'complete'. The UA check is unfortunate, but not sure how 30 //to feature test w/o causing perf issues. 31 readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ? 32 /^complete$/ : /^(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 === 'object' && value && 112 !isArray(value) && !isFunction(value) && 113 !(value instanceof RegExp)) { 114 115 if (!target[prop]) { 116 target[prop] = {}; 117 } 118 mixin(target[prop], value, force, deepStringMixin); 119 } else { 120 target[prop] = value; 121 } 122 } 123 }); 124 } 125 return target; 126 } 127 128 //Similar to Function.prototype.bind, but the 'this' object is specified 129 //first, since it is easier to read/figure out what 'this' will be. 130 function bind(obj, fn) { 131 return function () { 132 return fn.apply(obj, arguments); 133 }; 134 } 135 136 function scripts() { 137 return document.getElementsByTagName('script'); 138 } 139 140 function defaultOnError(err) { 141 throw err; 142 } 143 144 //Allow getting a global that is expressed in 145 //dot notation, like 'a.b.c'. 146 function getGlobal(value) { 147 if (!value) { 148 return value; 149 } 150 var g = global; 151 each(value.split('.'), function (part) { 152 g = g[part]; 153 }); 154 return g; 155 } 156 157 /** 158 * Constructs an error with a pointer to an URL with more information. 159 * @param {String} id the error ID that maps to an ID on a web page. 160 * @param {String} message human readable error. 161 * @param {Error} [err] the original error, if there is one. 162 * 163 * @returns {Error} 164 */ 165 function makeError(id, msg, err, requireModules) { 166 var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id); 167 e.requireType = id; 168 e.requireModules = requireModules; 169 if (err) { 170 e.originalError = err; 171 } 172 return e; 173 } 174 175 if (typeof define !== 'undefined') { 176 //If a define is already in play via another AMD loader, 177 //do not overwrite. 178 return; 179 } 180 181 if (typeof requirejs !== 'undefined') { 182 if (isFunction(requirejs)) { 183 //Do not overwrite an existing requirejs instance. 184 return; 185 } 186 cfg = requirejs; 187 requirejs = undefined; 188 } 189 190 //Allow for a require config object 191 if (typeof require !== 'undefined' && !isFunction(require)) { 192 //assume it is a config object. 193 cfg = require; 194 require = undefined; 195 } 196 197 function newContext(contextName) { 198 var inCheckLoaded, Module, context, handlers, 199 checkLoadedTimeoutId, 200 config = { 201 //Defaults. Do not set a default for map 202 //config to speed up normalize(), which 203 //will run faster if there is no default. 204 waitSeconds: 7, 205 baseUrl: './', 206 paths: {}, 207 bundles: {}, 208 pkgs: {}, 209 shim: {}, 210 config: {} 211 }, 212 registry = {}, 213 //registry of just enabled modules, to speed 214 //cycle breaking code when lots of modules 215 //are registered, but not activated. 216 enabledRegistry = {}, 217 undefEvents = {}, 218 defQueue = [], 219 defined = {}, 220 urlFetched = {}, 221 bundlesMap = {}, 222 requireCounter = 1, 223 unnormalizedCounter = 1; 224 225 /** 226 * Trims the . and .. from an array of path segments. 227 * It will keep a leading path segment if a .. will become 228 * the first path segment, to help with module name lookups, 229 * which act like paths, but can be remapped. But the end result, 230 * all paths that use this function should look normalized. 231 * NOTE: this method MODIFIES the input array. 232 * @param {Array} ary the array of path segments. 233 */ 234 function trimDots(ary) { 235 var i, part; 236 for (i = 0; i < ary.length; i++) { 237 part = ary[i]; 238 if (part === '.') { 239 ary.splice(i, 1); 240 i -= 1; 241 } else if (part === '..') { 242 // If at the start, or previous value is still .., 243 // keep them so that when converted to a path it may 244 // still work when converted to a path, even though 245 // as an ID it is less than ideal. In larger point 246 // releases, may be better to just kick out an error. 247 if (i === 0 || (i
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247== 1 && ary[2] === '..') || ary[i - 1] === '..') { 248 continue; 249 } else if (i > 0) { 250 ary.splice(i - 1, 2); 251 i -= 2; 252 } 253 } 254 } 255 } 256 257 /** 258 * Given a relative module name, like ./something, normalize it to 259 * a real name that can be mapped to a path. 260 * @param {String} name the relative name 261 * @param {String} baseName a real name that the name arg is relative 262 * to. 263 * @param {Boolean} applyMap apply the map config to the value. Should 264 * only be done if this normalization is for a dependency ID. 265 * @returns {String} normalized name 266 */ 267 function normalize(name, baseName, applyMap) { 268 var pkgMain, mapValue, nameParts, i, j, nameSegment, lastIndex, 269 foundMap, foundI, foundStarMap, starI, normalizedBaseParts, 270 baseParts = (baseName && baseName.split('/')), 271 map = config.map, 272 starMap = map && map['*']; 273 274 //Adjust any relative paths. 275 if (name) { 276 name = name.split('/'); 277 lastIndex = name.length - 1; 278 279 // If wanting node ID compatibility, strip .js from end 280 // of IDs. Have to do this here, and not in nameToUrl 281 // because node allows either .js or non .js to map 282 // to same file. 283 if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) { 284 name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, ''); 285 } 286 287 // Starts with a '.' so need the baseName 288 if (name[0].charAt(0) === '.' && baseParts) { 289 //Convert baseName to array, and lop off the last part, 290 //so that . matches that 'directory' and not name of the baseName's 291 //module. For instance, baseName of 'one/two/three', maps to 292 //'one/two/three.js', but we want the directory, 'one/two' for 293 //this normalization. 294 normalizedBaseParts = baseParts.slice(0, baseParts.length - 1); 295 name = normalizedBaseParts.concat(name); 296 } 297 298 trimDots(name); 299 name = name.join('/'); 300 } 301 302 //Apply map config if available. 303 if (applyMap && map && (baseParts || starMap)) { 304 nameParts = name.split('/'); 305 306 outerLoop: for (i = nameParts.length; i > 0; i -= 1) { 307 nameSegment = nameParts.slice(0, i).join('/'); 308 309 if (baseParts) { 310 //Find the longest baseName segment match in the config. 311 //So, do joins on the biggest to smallest lengths of baseParts. 312 for (j = baseParts.length; j > 0; j -= 1) { 313 mapValue = getOwn(map, baseParts.slice(0, j).join('/')); 314 315 //baseName segment has config, find if it has one for 316 //this name. 317 if (mapValue) { 318 mapValue = getOwn(mapValue, nameSegment); 319 if (mapValue) { 320 //Match, update name to the new value. 321 foundMap = mapValue; 322 foundI = i; 323 break outerLoop; 324 } 325 } 326 } 327 } 328 329 //Check for a star map match, but just hold on to it, 330 //if there is a shorter segment match later in a matching 331 //config, then favor over this star map. 332 if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) { 333 foundStarMap = getOwn(starMap, nameSegment); 334 starI = i; 335 } 336 } 337 338 if (!foundMap && foundStarMap) { 339 foundMap = foundStarMap; 340 foundI = starI; 341 } 342 343 if (foundMap) { 344 nameParts.splice(0, foundI, foundMap); 345 name = nameParts.join('/'); 346 } 347 } 348 349 // If the name points to a package's name, use 350 // the package main instead. 351 pkgMain = getOwn(config.pkgs, name); 352 353 return pkgMain ? pkgMain : name; 354 } 355 356 function removeScript(name) { 357 if (isBrowser) { 358 each(scripts(), function (scriptNode) { 359 if (scriptNode.getAttribute('data-requiremodule') === name && 360 scriptNode.getAttribute('data-requirecontext') === context.contextName) { 361 scriptNode.parentNode.removeChild(scriptNode); 362 return true; 363 } 364 }); 365 } 366 } 367 368 function hasPathFallback(id) { 369 var pathConfig = getOwn(config.paths, id); 370 if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) { 371 //Pop off the first array value, since it failed, and 372 //retry 373 pathConfig.shift(); 374 context.require.undef(id); 375 376 //Custom require that does not do map translation, since 377 //ID is "absolute", already mapped/resolved. 378 context.makeRequire(null, { 379 skipMap: true 380 })([id]); 381 382 return true; 383 } 384 } 385 386 //Turns a plugin!resource to [plugin, resource] 387 //with the plugin being undefined if the name 388 //did not have a plugin prefix. 389 function splitPrefix(name) { 390 var prefix, 391 index = name ? name.indexOf('!') : -1; 392 if (index > -1) { 393 prefix = name.substring(0, index); 394 name = name.substring(index + 1, name.length); 395 } 396 return [prefix, name]; 397 } 398 399 /** 400 * Creates a module mapping that includes plugin prefix, module 401 * name, and path. If parentModuleMap is provided it will 402 * also normalize the name via require.normalize() 403 * 404 * @param {String} name the module name 405 * @param {String} [parentModuleMap] parent module map 406 * for the module name, used to resolve relative names. 407 * @param {Boolean} isNormalized: is the ID already normalized. 408 * This is true if this call is done for a define() module ID. 409 * @param {Boolean} applyMap: apply the map config to the ID. 410 * Should only be true if this map is for a dependency. 411 * 412 * @returns {Object} 413 */ 414 function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) { 415 var url, pluginModule, suffix, nameParts, 416 prefix = null, 417 parentName = parentModuleMap ? parentModuleMap.name : null, 418 originalName = name, 419 isDefine = true, 420 normalizedName = ''; 421 422 //If no name, then it means it is a require call, generate an 423 //internal name. 424 if (!name) { 425 isDefine = false; 426 name = '_@r' + (requireCounter += 1); 427 } 428 429 nameParts = splitPrefix(name); 430 prefix = nameParts[0]; 431 name = nameParts[1]; 432 433 if (prefix) { 434 prefix = normalize(prefix, parentName, applyMap); 435 pluginModule = getOwn(defined, prefix); 436 } 437 438 //Account for relative paths if there is a base name. 439 if (name) { 440 if (prefix) { 441 if (
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441pluginModule && pluginModule.normalize) { 442 //Plugin is loaded, use its normalize method. 443 normalizedName = pluginModule.normalize(name, function (name) { 444 return normalize(name, parentName, applyMap); 445 }); 446 } else { 447 // If nested plugin references, then do not try to 448 // normalize, as it will not normalize correctly. This 449 // places a restriction on resourceIds, and the longer 450 // term solution is not to normalize until plugins are 451 // loaded and all normalizations to allow for async 452 // loading of a loader plugin. But for now, fixes the 453 // common uses. Details in #1131 454 normalizedName = name.indexOf('!') === -1 ? 455 normalize(name, parentName, applyMap) : 456 name; 457 } 458 } else { 459 //A regular module. 460 normalizedName = normalize(name, parentName, applyMap); 461 462 //Normalized name may be a plugin ID due to map config 463 //application in normalize. The map config values must 464 //already be normalized, so do not need to redo that part. 465 nameParts = splitPrefix(normalizedName); 466 prefix = nameParts[0]; 467 normalizedName = nameParts[1]; 468 isNormalized = true; 469 470 url = context.nameToUrl(normalizedName); 471 } 472 } 473 474 //If the id is a plugin id that cannot be determined if it needs 475 //normalization, stamp it with a unique ID so two matching relative 476 //ids that may conflict can be separate. 477 suffix = prefix && !pluginModule && !isNormalized ? 478 '_unnormalized' + (unnormalizedCounter += 1) : 479 ''; 480 481 return { 482 prefix: prefix, 483 name: normalizedName, 484 parentMap: parentModuleMap, 485 unnormalized: !!suffix, 486 url: url, 487 originalName: originalName, 488 isDefine: isDefine, 489 id: (prefix ? 490 prefix + '!' + normalizedName : 491 normalizedName) + suffix 492 }; 493 } 494 495 function getModule(depMap) { 496 var id = depMap.id, 497 mod = getOwn(registry, id); 498 499 if (!mod) { 500 mod = registry[id] = new context.Module(depMap); 501 } 502 503 return mod; 504 } 505 506 function on(depMap, name, fn) { 507 var id = depMap.id, 508 mod = getOwn(registry, id); 509 510 if (hasProp(defined, id) && 511 (!mod || mod.defineEmitComplete)) { 512 if (name === 'defined') { 513 fn(defined[id]); 514 } 515 } else { 516 mod = getModule(depMap); 517 if (mod.error && name === 'error') { 518 fn(mod.error); 519 } else { 520 mod.on(name, fn); 521 } 522 } 523 } 524 525 function onError(err, errback) { 526 var ids = err.requireModules, 527 notified = false; 528 529 if (errback) { 530 errback(err); 531 } else { 532 each(ids, function (id) { 533 var mod = getOwn(registry, id); 534 if (mod) { 535 //Set error on module, so it skips timeout checks. 536 mod.error = err; 537 if (mod.events.error) { 538 notified = true; 539 mod.emit('error', err); 540 } 541 } 542 }); 543 544 if (!notified) { 545 req.onError(err); 546 } 547 } 548 } 549 550 /** 551 * Internal method to transfer globalQueue items to this context's 552 * defQueue. 553 */ 554 function takeGlobalQueue() { 555 //Push all the globalDefQueue items into the context's defQueue 556 if (globalDefQueue.length) { 557 //Array splice in the values since the context code has a 558 //local var ref to defQueue, so cannot just reassign the one 559 //on context. 560 apsp.apply(defQueue, 561 [defQueue.length, 0].concat(globalDefQueue)); 562 globalDefQueue = []; 563 } 564 } 565 566 handlers = { 567 'require': function (mod) { 568 if (mod.require) { 569 return mod.require; 570 } else { 571 return (mod.require = context.makeRequire(mod.map)); 572 } 573 }, 574 'exports': function (mod) { 575 mod.usingExports = true; 576 if (mod.map.isDefine) { 577 if (mod.exports) { 578 return (defined[mod.map.id] = mod.exports); 579 } else { 580 return (mod.exports = defined[mod.map.id] = {}); 581 } 582 } 583 }, 584 'module': function (mod) { 585 if (mod.module) { 586 return mod.module; 587 } else { 588 return (mod.module = { 589 id: mod.map.id, 590 uri: mod.map.url, 591 config: function () { 592 return getOwn(config.config, mod.map.id) || {}; 593 }, 594 exports: mod.exports || (mod.exports = {}) 595 }); 596 } 597 } 598 }; 599 600 function cleanRegistry(id) { 601 //Clean up machinery used for waiting modules. 602 delete registry[id]; 603 delete enabledRegistry[id]; 604 } 605 606 function breakCycle(mod, traced, processed) { 607 var id = mod.map.id; 608 609 if (mod.error) { 610 mod.emit('error', mod.error); 611 } else { 612 traced[id] = true; 613 each(mod.depMaps, function (depMap, i) { 614 var depId = depMap.id, 615 dep = getOwn(registry, depId); 616 617 //Only force things that have not completed 618 //being defined, so still in the registry, 619 //and only if it has not been matched up 620 //in the module already. 621 if (dep && !mod.depMatched[i] && !processed[depId]) { 622 if (getOwn(traced, depId)) { 623 mod.defineDep(i, defined[depId]); 624 mod.check(); //pass false? 625 } else { 626 breakCycle(dep, traced, processed); 627 } 628 } 629 }); 630 processed[id] = true; 631 } 632 } 633 634 function checkLoaded() { 635 var err, usingPathFallback, 636 waitInterval = config.waitSeconds * 1000, 637 //It is possible to disable the wait interval by using waitSeconds of 0. 638 expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(), 639 noLoads = [], 640 reqCalls = [], 641 stillLoading = false, 642 needCycleCheck = true; 643 644 //Do not bother if this call was a result of a cycle break. 645 if (inCheckLoaded) { 646 return; 647 } 648 649 inCheckLoaded = true; 650 651 //Figure out the state of all the modules. 652 eachProp(enabledRegistry, function (mod) { 653 var map = mod.map, 654 modId = map.id; 655 656 //Skip things that are not enabled or in error state. 657 if (!mod.enabled) { 658 return; 659 } 660 661 if (!map.isDefine) { 662 reqCalls.push(mod); 663 } 664 665 if (!mod.error) { 666 //If the module should be executed, and it has not 667 //been inited and time is up, remember it. 668 if (!mod.inited && expired) { 669 if (hasPathFallback(modId)) { 670 usingPathFallback = true; 671 stillLoading = true; 672 } else { 673 noLoads.push(modId); 674 removeScript(modId); 675 } 676 } else if (!mod.inited && mod.fetched && map.isDefine) { 677 stillLoading = true; 678 if (!map.prefix) { 679 //No reason to keep looking for unfinished 680 //loading. If the only stillLoading is a 681 //plugin resource though, keep going, 682 //because it may be that a plugin resource 683 //is waiting on a non-plugin cycle. 684 return (needCycleCheck = false); 685 } 686 } 687 } 688 }); 689 690 if (expired && noLoads.length) { 691 //If wait time expired, throw error of unloaded modules. 692 err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads); 693 err.contextName = context.contextName; 694 return onError(err); 695 } 696 697 //Not expired, check for a cycle. 698 if (needCycleCheck) { 699 each(reqCalls, function (mod) { 700 breakCycle(mod, {}, {}); 701 }); 702 } 703 704 //If still waiting on loads, and the waiting load is something 705 //other than a plugin resource, or there are still outstanding 706 //scripts, then just try back later. 707 if ((!expired || usingPathFallback) && stillLoading) { 708 //Something is still waiting to load. Wait for it, but only 709 //if a timeout is not already in effect. 710 if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) { 711 checkLoadedTimeoutId = setTimeout(function () { 712 checkLoadedTimeoutId = 0; 713 checkLoaded(); 714 }, 50); 715 } 716 } 717 718 inCheckLoaded = false; 719 } 720 721 Module = function (map) { 722 this.events = getOwn(undefEvents, map.id) || {}; 723 this.map = map; 724 this.shim = getOwn(config.shim, map.id); 725 this.depExports = []; 726 this.depMaps = []; 727 this.depMatched = []; 728 this.pluginMaps = {}; 729 this.depCount = 0; 730 731 /* this.exports this.factory 732 this.depMaps = [], 733 this.enabled, this.fetched 734 */ 735 }; 736 737 Module.prototype = { 738 init: function (depMaps, factory, errback, options) { 739 options = options || {}; 740 741 //Do not do more inits if already done. Can happen if there 742 //are multiple define calls for the same module. That is not 743 //a normal, common case, but it is also not unexpected. 744 if (this.inited) { 745 return; 746 } 747 748 this.factory = factory; 749 750 if (errback) { 751 //Register for errors on this module. 752 this.on('error', errback); 753 } else if (this.events.error) { 754 //If no errback already, but there are error listeners 755 //on this module, set up an errback to pass to the deps. 756 errback = bind(this, function (err) { 757 this.emit('error', err); 758 }); 759 } 760 761 //Do a copy of the dependency array, so that 762 //source inputs are not modified. For example 763 //"shim" deps are passed in here directly, and 764 //doing a direct modification of the depMaps array 765 //would affect that config. 766 this.depMaps = depMaps && depMaps.slice(0); 767 768 this.errback = errback; 769 770 //Indicate this module has be initialized 771 this.inited = true; 772 773 this.ignore = options.ignore; 774 775 //Could have option to init this module in enabled mode, 776 //or could have been previously marked as enabled. However, 777 //the dependencies are not known until init is called. So 778 //if enabled previously, now trigger dependencies as enabled. 779 if (options.enabled || this.enabled) { 780 //Enable this module and dependencies. 781 //Will call this.check() 782 this.enable(); 783 } else { 784 this.check(); 785 } 786 }, 787 788 defineDep: function (i, depExports) { 789 //Because of cycles, defined callback for a given 790 //export can be called more than once. 791 if (!this.depMatched[i]) { 792 this.depMatched[i] = true; 793 this.depCount -= 1; 794 this.depExports[i] = depExports; 795 } 796 }, 797 798 fetch: function () { 799 if (this.fetched) { 800 return; 801 } 802 this.fetched = true; 803 804 context.startTime = (new Date()).getTime(); 805 806 var map = this.map; 807 808 //If the manager is for a plugin managed resource, 809 //ask the plugin to load it now. 810 if (this.shim) { 811 context.makeRequire(this.map, { 812 enableBuildCallback: true 813 })(this.shim.deps || [], bind(this, function () { 814 return map.prefix ? this.callPlugin() : this.load(); 815 })); 816 } else { 817 //Regular dependency. 818 return map.prefix ? this.callPlugin() : this.load(); 819 } 820 }, 821 822 load: function () { 823 var url = this.map.url; 824 825 //Regular dependency. 826 if (!urlFetched[url]) { 827 urlFetched[url] = true; 828 context.load(this.map.id, url); 829 } 830 }, 831 832 /** 833 * Checks if the module is ready to define itself, and if so, 834 * define it. 835 */ 836 check: function () { 837 if (!this.enabled || this.enabling) { 838 return; 839 } 840 841 var err, cjsModule, 842 id = this.map.id, 843 depExports = this.depExports, 844 exports = this.exports, 845 factory = this.factory; 846 847 if (!this.inited) { 848 this.fetch(); 849 } else if (this.error) { 850 this.emit('error', this.error); 851 } else if (!this.defining) { 852 //The factory could trigger another require call 853 //that would result in checking this module to 854 //define itself again. If already in the process 855 //of doing that, skip this work. 856 this.defining = true; 857 858 if (this.depCount < 1 && !this.defined) { 859 if (isFunction(factory)) { 860 //If there is an error listener, favor passing 861 //to that instead of throwing an error. However, 862 //only do it for define()'d modules. require 863 //errbacks should not be called for failures in 864 //their callbacks (#699). However if a global 865 //onError is set, use that. 866 if ((this.events.error && this.map.isDefine) || 867 req.onError !== defaultOnError) { 868 try { 869 exports = context.execCb(id, factory, depExports, exports); 870 } catch (e) { 871 err = e; 872 } 873 } else { 874 exports = context.execCb(id, factory, depExports, exports); 875 } 876 877 // Favor return value over exports. If node/cjs in play, 878 // then will not have a return value anyway. Favor 879 // module.exports assignment over exports object. 880 if (this.map.isDefine && exports === undefined) { 881 cjsModule = this.module; 882 if (cjsModule) { 883 exports = cjsModule.exports; 884 } else if (this.usingExports) { 885 //exports already set the defined value. 886 exports = this.exports; 887 } 888 } 889 890 if (err) { 891 err.requireMap = this.map; 892 err.requireModules = this.map.isDefine ? [this.map.id] : null; 893 err.requireType = this.map.isDefine ? 'define' : 'require'; 894 return onError((this.error = err)); 895 } 896 897 } else { 898 //Just a literal value 899 exports = factory; 900 } 901 902 this.exports = exports; 903 904 if (this.map.isDefine && !this.ignore) { 905 defined[id] = exports; 906 907 if (req.onResourceLoad) { 908 req.onResourceLoad(context, this.map, this.depMaps); 909 } 910 } 911 912 //Clean up 913 cleanRegistry(id); 914 915 this.defined = true; 916 } 917 918 //Finished the define stage. Allow calling check again 919 //to allow define notifications below in the case of a 920 //cycle. 921 this.defining = false; 922 923 if (this.defined && !this.defineEmitted) { 924 this.defineEmitted = true; 925 this.emit('defined', this.exports); 926 this.defineEmitComplete = true; 927 } 928 929 } 930 }, 931 932 callPlugin: function () { 933 var map = this.map, 934 id = map.id, 935 //Map already normalized the prefix. 936 pluginMap = makeModuleMap(map.prefix); 937 938 //Mark this as a dependency for this plugin, so it 939 //can be traced for cycles. 940 this.depMaps.push(pluginMap); 941 942 on(pluginMap, 'defined', bind(this, function (plugin) { 943 var load, normalizedMap, normalizedMod, 944 bundleId = getOwn(bundlesMap, this.map.id), 945 name = this.map.name, 946 parentName = this.map.parentMap ? this.map.parentMap.name : null, 947 localRequire = context.makeRequire(map.parentMap, { 948 enableBuildCallback: true 949 }); 950 951 //If current map is not normalized, wait for that 952 //normalized name to load instead of continuing. 953 if (this.map.unnormalized) { 954 //Normalize the ID if the plugin allows it. 955 if (plugin.normalize) { 956 name = plugin.normalize(name, function (name) { 957 return normalize(name, parentName, true); 958 }) || ''; 959 } 960 961 //prefix and name should already be normalized, no need 962 //for applying map config again either. 963 normalizedMap = makeModuleMap(map.prefix + '!' + name, 964 this.map.parentMap); 965 on(normalizedMap, 966 'defined', bind(this, function (value) {
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966 967 this.init([], function () { return value; }, null, { 968 enabled: true, 969 ignore: true 970 }); 971 })); 972 973 normalizedMod = getOwn(registry, normalizedMap.id); 974 if (normalizedMod) { 975 //Mark this as a dependency for this plugin, so it 976 //can be traced for cycles. 977 this.depMaps.push(normalizedMap); 978 979 if (this.events.error) { 980 normalizedMod.on('error', bind(this, function (err) { 981 this.emit('error', err); 982 })); 983 } 984 normalizedMod.enable(); 985 } 986 987 return; 988 } 989 990 //If a paths config, then just load that file instead to 991 //resolve the plugin, as it is built into that paths layer. 992 if (bundleId) { 993 this.map.url = context.nameToUrl(bundleId); 994 this.load(); 995 return; 996 } 997 998 load = bind(this, function (value) { 999 this.init([], function () { return value; }, null, { 1000 enabled: true 1001 }); 1002 }); 1003 1004 load.error = bind(this, function (err) { 1005 this.inited = true; 1006 this.error = err; 1007 err.requireModules = [id]; 1008 1009 //Remove temp unnormalized modules for this module, 1010 //since they will never be resolved otherwise now. 1011 eachProp(registry, function (mod) { 1012 if (mod.map.id.indexOf(id + '_unnormalized') === 0) { 1013 cleanRegistry(mod.map.id); 1014 } 1015 }); 1016 1017 onError(err); 1018 }); 1019 1020 //Allow plugins to load other code without having to know the 1021 //context or how to 'complete' the load. 1022 load.fromText = bind(this, function (text, textAlt) { 1023 /*jslint evil: true */ 1024 var moduleName = map.name, 1025 moduleMap = makeModuleMap(moduleName), 1026 hasInteractive = useInteractive; 1027 1028 //As of 2.1.0, support just passing the text, to reinforce 1029 //fromText only being called once per resource. Still 1030 //support old style of passing moduleName but discard 1031 //that moduleName in favor of the internal ref. 1032 if (textAlt) { 1033 text = textAlt; 1034 } 1035 1036 //Turn off interactive script matching for IE for any define 1037 //calls in the text, then turn it back on at the end. 1038 if (hasInteractive) { 1039 useInteractive = false; 1040 } 1041 1042 //Prime the system by creating a module instance for 1043 //it. 1044 getModule(moduleMap); 1045 1046 //Transfer any config to this other module. 1047 if (hasProp(config.config, id)) { 1048 config.config[moduleName] = config.config[id]; 1049 } 1050 1051 try { 1052 req.exec(text); 1053 } catch (e) { 1054 return onError(makeError('fromtexteval', 1055 'fromText eval for ' + id + 1056 ' failed: ' + e, 1057 e, 1058 [id])); 1059 } 1060 1061 if (hasInteractive) { 1062 useInteractive = true; 1063 } 1064 1065 //Mark this as a dependency for the plugin 1066 //resource 1067 this.depMaps.push(moduleMap); 1068 1069 //Support anonymous modules. 1070 context.completeLoad(moduleName); 1071 1072 //Bind the value of that module to the value for this 1073 //resource ID. 1074 localRequire([moduleName], load); 1075 }); 1076 1077 //Use parentName here since the plugin's name is not reliable, 1078 //could be some weird string with no path that actually wants to 1079 //reference the parentName's path. 1080 plugin.load(map.name, localRequire, load, config); 1081 })); 1082 1083 context.enable(pluginMap, this); 1084 this.pluginMaps[pluginMap.id] = pluginMap; 1085 }, 1086 1087 enable: function () { 1088 enabledRegistry[this.map.id] = this; 1089 this.enabled = true; 1090 1091 //Set flag mentioning that the module is enabling, 1092 //so that immediate calls to the defined callbacks 1093 //for dependencies do not trigger inadvertent load 1094 //with the depCount still being zero. 1095 this.enabling = true; 1096 1097 //Enable each dependency 1098 each(this.depMaps, bind(this, function (depMap, i) { 1099 var id, mod, handler; 1100 1101 if (typeof depMap === 'string') { 1102 //Dependency needs to be converted to a depMap 1103 //and wired up to this module. 1104 depMap = makeModuleMap(depMap, 1105 (this.map.isDefine ? this.map : this.map.parentMap), 1106 false, 1107 !this.skipMap); 1108 this.depMaps[i] = depMap; 1109 1110 handler = getOwn(handlers, depMap.id); 1111 1112 if (handler) { 1113 this.depExports[i] = handler(this); 1114 return; 1115 } 1116 1117 this.depCount += 1; 1118 1119 on(depMap, 'defined', bind(this, function (depExports) { 1120
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1120this.defineDep(i, depExports); 1121 this.check(); 1122 })); 1123 1124 if (this.errback) { 1125 on(depMap, 'error', bind(this, this.errback)); 1126 } else if (this.events.error) { 1127 // No direct errback on this module, but something 1128 // else is listening for errors, so be sure to 1129 // propagate the error correctly. 1130 on(depMap, 'error', bind(this, function(err) { 1131 this.emit('error', err); 1132 })); 1133 } 1134 } 1135 1136 id = depMap.id; 1137 mod = registry[id]; 1138 1139 //Skip special modules like 'require', 'exports', 'module' 1140 //Also, don't call enable if it is already enabled, 1141 //important in circular dependency cases. 1142 if (!hasProp(handlers, id) && mod && !mod.enabled) { 1143 context.enable(depMap, this); 1144 } 1145 })); 1146 1147 //Enable each plugin that is used in 1148 //a dependency 1149 eachProp(this.pluginMaps, bind(this, function (pluginMap) { 1150 var mod = getOwn(registry, pluginMap.id); 1151 if (mod && !mod.enabled) { 1152 context.enable(pluginMap, this); 1153 } 1154 })); 1155 1156 this.enabling = false; 1157 1158 this.check(); 1159 }, 1160 1161 on: function (name, cb) { 1162 var cbs = this.events[name]; 1163 if (!cbs) { 1164 cbs = this.events[name] = []; 1165 } 1166 cbs.push(cb); 1167 }, 1168 1169 emit: function (name, evt) { 1170 each(this.events[name], function (cb) { 1171 cb(evt); 1172 }); 1173 if (name === 'error') { 1174 //Now that the error handler was triggered, remove 1175 //the listeners, since this broken Module instance 1176 //can stay around for a while in the registry. 1177 delete this.events[name]; 1178 } 1179 } 1180 }; 1181 1182 function callGetModule(args) { 1183 //Skip modules already defined. 1184 if (!hasProp(defined, args[0])) { 1185 getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]); 1186 } 1187 } 1188 1189 function removeListener(node, func, name, ieName) { 1190 //Favor detachEvent because of IE9 1191 //issue, see attachEvent/addEventListener comment elsewhere 1192 //in this file. 1193 if (node.detachEvent && !isOpera) { 1194 //Probably IE. If not it will throw an error, which will be 1195 //useful to know. 1196 if (ieName) { 1197 node.detachEvent(ieName, func); 1198 } 1199 } else { 1200 node.removeEventListener(name, func, false); 1201 } 1202 } 1203 1204 /** 1205 * Given an event from a script node, get the requirejs info from it, 1206 * and then removes the event listeners on the node. 1207 * @param {Event} evt 1208 * @returns {Object} 1209 */ 1210 function getScriptData(evt) { 1211 //Using currentTarget instead of target for Firefox 2.0's sake. Not 1212 //all old browsers will be supported, but this one was easy enough 1213 //to support and still makes sense. 1214 var node = evt.currentTarget || evt.srcElement; 1215 1216 //Remove the listeners once here. 1217 removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange'); 1218 removeListener(node, context.onScriptError, 'error'); 1219 1220 return { 1221 node: node, 1222 id: node && node.getAttribute('data-requiremodule') 1223 }; 1224 } 1225 1226 function intakeDefines() { 1227 var args; 1228 1229 //Any defined modules in the global queue, intake them now. 1230 takeGlobalQueue(); 1231 1232 //Make sure any remaining defQueue items get properly processed. 1233 while (defQueue.length) { 1234 args = defQueue.shift(); 1235 if (args[0] === null) { 1236 return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1])); 1237 } else { 1238 //args are id, deps, factory. Should be normalized by the 1239 //define() function. 1240 callGetModule(args); 1241 } 1242 } 1243 } 1244 1245 context = { 1246 config: config, 1247 contextName: contextName, 1248 registry: registry, 1249 defined: defined, 1250 urlFetched: urlFetched, 1251 defQueue: defQueue, 1252 Module: Module, 1253 makeModuleMap: makeModuleMap, 1254 nextTick: req.nextTick, 1255 onError: onError, 1256 1257 /** 1258 * Set a configuration for the context. 1259 * @param {Object} cfg config object to integrate. 1260 */ 1261 configure: function (cfg) { 1262 //Make sure the baseUrl ends in a slash. 1263 if (cfg.baseUrl) { 1264 if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') { 1265 cfg.baseUrl += '/'; 1266 } 1267 } 1268 1269 //Save off the paths since they require special processing, 1270 //they are additive. 1271 var shim = config.shim, 1272 objs = { 1273 paths: true, 1274 bundles: true, 1275 config: true, 1276 map: true 1277 }; 1278 1279 eachProp(cfg, function (value, prop) { 1280 if (objs[prop]) { 1281 if (!config[prop]) { 1282 config[prop] = {}; 1283 } 1284 mixin(config[prop], value, true, true); 1285 } else { 1286 config[prop] = value; 1287 } 1288 }); 1289 1290 //Reverse map the bundles 1291 if (cfg.bundles) { 1292 eachProp(cfg.bundles, function (value, prop) { 1293 each(value, function (v) { 1294 if (v !== prop) { 1295 bundlesMap[v] = prop; 1296 } 1297 }); 1298 }); 1299 } 1300 1301 //Merge shim 1302 if (cfg.shim) { 1303 eachProp(cfg.shim, function (value, id) { 1304 //Normalize the structure 1305 if (isArray(value)) { 1306 value = { 1307 deps: value 1308 }; 1309 } 1310 if ((value.exports || value.init) && !value.exportsFn) { 1311 value.exportsFn = context.makeShimExports(value); 1312 } 1313 shim[id] = value; 1314 }); 1315 config.shim = shim; 1316 } 1317 1318 //Adjust packages if necessary. 1319 if (cfg.packages) { 1320 each(cfg.packages, function (pkgObj) { 1321 var location, name; 1322 1323 pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj; 1324 1325 name = pkgObj.name; 1326 location = pkgObj.location; 1327 if (location) { 1328 config.paths[name] = pkgObj.location; 1329 } 1330 1331 //Save pointer to main module ID for pkg name. 1332 //Remove leading dot in main, so main paths are normalized, 1333 //and remove any trailing .js, since different package 1334 //envs have different conventions: some use a module name, 1335 //some use a file name. 1336 config.pkgs[name] = pkgObj.name + '/' + (pkgObj.main || 'main') 1337 .replace(currDirRegExp, '') 1338 .replace(jsSuffixRegExp, ''); 1339 }); 1340 } 1341 1342 //If there are any "waiting to execute" modules in the registry, 1343 //update the maps for them, since their info, like URLs to load, 1344 //may have changed. 1345 eachProp(registry, function (mod, id) { 1346 //If module already has init called, since it is too 1347 //late to modify them, and ignore unnormalized ones 1348 //since they are transient. 1349 if (!mod.inited && !mod.map.unnormalized) { 1350 mod.map = makeModuleMap(id); 1351 } 1352 }); 1353 1354 //If a deps array or a config callback is specified, then call 1355 //require with those args. This is useful when require is defined as a 1356 //config object before require.js is loaded. 1357 if (cfg.deps || cfg.callback) { 1358 context.require(cfg.deps || [], cfg.callback); 1359 } 1360 }, 1361 1362 makeShimExports: function (value) { 1363 function fn() { 1364 var ret; 1365 if (value.init) { 1366 ret = value.init.apply(global, arguments); 1367 } 1368 return ret || (value.exports && getGlobal(value.exports)); 1369 } 1370 return fn; 1371 }, 1372 1373 makeRequire: function (relMap, options) { 1374 options = options || {}; 1375 1376 function localRequire(deps, callback, errback) { 1377 var id, map, requireMod; 1378 1379 if (options.enableBuildCallback && callback && isFunction(callback)) { 1380 callback.__requireJsBuild = true; 1381 } 1382 1383 if (typeof deps === 'string') { 1384 if (isFunction(callback)) { 1385 //Invalid call 1386 return onError(makeError('requireargs', 'Invalid require call'), errback); 1387 } 1388 1389 //If require|exports|module are requested, get the 1390 //value for them from the special handlers. Caveat: 1391 //this only works while module is being defined. 1392 if (relMap && hasProp(handlers, deps)) { 1393 return handlers[deps](registry[relMap.id]); 1394 } 1395 1396 //Synchronous access to one module. If require.get is 1397 //available (as in the Node adapter), prefer that. 1398 if (req.get) { 1399 return req.get(context, deps, relMap, localRequire); 1400 } 1401 1402 //Normalize module name, if it contains . or .. 1403 map = makeModuleMap(deps, relMap, false, true); 1404 id = map.id; 1405 1406 if (!hasProp(defined, id)) { 1407 return onError(makeError('notloaded', 'Module name "' + 1408 id + 1409 '" has not been loaded yet for context: ' + 1410 contextName + 1411 (relMap ? '' : '. Use require([])'))); 1412 } 1413 return defined[id]; 1414 } 1415 1416 //Grab defines waiting in the global queue. 1417 intakeDefines(); 1418 1419 //Mark all the dependencies as needing to be loaded. 1420 context.nextTick(function () { 1421 //Some defines could have been added since the 1422 //require call, collect them. 1423 intakeDefines(); 1424 1425 requireMod = getModule(makeModuleMap(null, relMap)); 1426 1427 //Store if map config should be applied to this require 1428 //call for dependencies. 1429 requireMod.skipMap = options.skipMap; 1430 1431 requireMod.init(deps, callback, errback, { 1432 enabled: true 1433 }); 1434 1435 checkLoaded(); 1436 }); 1437 1438 return localRequire; 1439 } 1440 1441 mixin(localRequire, { 1442 isBrowser: isBrowser, 1443 1444 /** 1445 * Converts a module name + .extension into an URL path. 1446 * *Requires* the use of a module name. It does not support using 1447 * plain URLs like nameToUrl. 1448 */ 1449 toUrl: function (moduleNamePlusExt) { 1450 var ext, 1451 index = moduleNamePlusExt.lastIndexOf('.'), 1452 segment = moduleNamePlusExt.split('/')[0], 1453 isRelative = segment === '.' || segment === '..'; 1454 1455 //Have a file extension alias, and it is not the 1456 //dots from a relative path. 1457 if (index !== -1 && (!isRelative || index > 1)) { 1458 ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length); 1459 moduleNamePlusExt = moduleNamePlusExt.substring(0, index); 1460 } 1461 1462 return context.nameToUrl(normalize(moduleNamePlusExt, 1463 relMap && relMap.id, true), ext, true); 1464 }, 1465 1466 defined: function (id) { 1467 return hasProp(defined, makeModuleMap(id, relMap, false, true).id); 1468 }, 1469 1470 specified: function (id) { 1471 id = makeModuleMap(id, relMap, false, true).id; 1472 return hasProp(defined, id) || hasProp(registry, id); 1473 } 1474 }); 1475 1476 //Only allow undef on top level require calls 1477 if (!relMap) { 1478 localRequire.undef = function (id) { 1479 //Bind any waiting define() calls to this context, 1480 //fix for #408 1481 takeGlobalQueue(); 1482 1483 var map = makeModuleMap(id, relMap, true), 1484 mod = getOwn(registry, id); 1485 1486 removeScript(id); 1487 1488 delete defined[id]; 1489 delete urlFetched[map.url]; 1490 delete undefEvents[id]; 1491 1492 //Clean queued defines too. Go backwards 1493 //in array so that the splices do not 1494 //mess up the iteration. 1495 eachReverse(defQueue, function(args, i) { 1496 if(args[0] === id) { 1497 defQueue.splice(i, 1); 1498 } 1499 }); 1500 1501 if (mod) { 1502 //Hold on to listeners in case the 1503 //module will be attempted to be reloaded 1504 //using a different config. 1505 if (mod.events.defined) { 1506 undefEvents[id] = mod.events; 1507 } 1508 1509 cleanRegistry(id); 1510 } 1511 }; 1512 } 1513 1514 return localRequire; 1515 }, 1516 1517 /** 1518 * Called to enable a module if it is still in the registry 1519 * awaiting enablement. A second arg, parent, the parent module, 1520 * is passed in for context, when this method is overridden by 1521 * the optimizer. Not shown here to keep code compact. 1522 */ 1523 enable: function (depMap) { 1524 var mod = getOwn(registry, depMap.id); 1525 if (mod) { 1526 getModule(depMap).enable(); 1527 } 1528 }, 1529 1530 /** 1531 * Internal method used by environment adapters to complete a load event. 1532 * A load event could be a script load or just a load pass from a synchronous 1533 * load call. 1534 * @param {String} moduleName the name of the module to potentially complete. 1535 */ 1536 completeLoad: function (moduleName) { 1537 var found, args, mod, 1538 shim = getOwn(config.shim, moduleName) || {}, 1539 shExports = shim.exports; 1540 1541 takeGlobalQueue(); 1542 1543 while (defQueue.length) { 1544 args = defQueue.shift(); 1545 if (args[0] === null) { 1546 args[0] = moduleName; 1547 //If already found an anonymous module and bound it 1548 //to this name, then this is some other anon module 1549 //waiting for its completeLoad to fire. 1550 if (found) { 1551 break; 1552 } 1553 found = true; 1554 } else if (args[0] === moduleName) { 1555 //Found matching define call for this script! 1556 found = true; 1557 } 1558 1559 callGetModule(args); 1560 } 1561 1562 //Do this after the cycle of callGetModule in case the result 1563 //of those calls/init calls changes the registry. 1564 mod = getOwn(registry, moduleName); 1565 1566 if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) { 1567 if (config.enforceDefine && (!shExports || !getGlobal(shExports))) { 1568 if (hasPathFallback(moduleName)) { 1569 return; 1570 } else { 1571 return onError(makeError('nodefine', 1572 'No define call for ' + moduleName, 1573 null, 1574 [moduleName])); 1575 } 1576 } else { 1577 //A script that does not call define(), so just simulate 1578 //the call for it. 1579 callGetModule([moduleName, (shim.deps || []), shim.exportsFn]); 1580 } 1581 } 1582 1583 checkLoaded(); 1584 }, 1585 1586 /** 1587 * Converts a module name to a file path. Supports cases where 1588 * moduleName may actually be just an URL. 1589 * Note that it **does not** call normalize on the moduleName, 1590 * it is assumed to have already been normalized. This is an 1591 * internal API, not a public one. Use toUrl for the public API. 1592 */ 1593 nameToUrl: function (moduleName, ext, skipExt) { 1594 var paths, syms, i, parentModule, url, 1595 parentPath, bundleId, 1596 pkgMain = getOwn(config.pkgs, moduleName); 1597 1598 if (pkgMain) { 1599 moduleName = pkgMain; 1600 } 1601 1602 bundleId = getOwn(bundlesMap, moduleName); 1603 1604 if (bundleId) { 1605 return context.nameToUrl(bundleId, ext, skipExt); 1606 } 1607 1608 //If a colon is in the URL, it indicates a protocol is used and it is just 1609 //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?) 1610 //or ends with .js, then assume the user meant to use an url and not a module id. 1611 //The slash is important for protocol-less URLs as well as full paths. 1612 if (req.jsExtRegExp.test(moduleName)) { 1613 //Just a plain path, not module name lookup, so just return it. 1614 //Add extension if it is included. This is a bit wonky, only non-.js things pass 1615 //an extension, this method probably needs to be reworked. 1616 url = moduleName + (ext || ''); 1617 } else { 1618 //A module that needs to be converted to a path. 1619 paths = config.paths; 1620 1621 syms = moduleName.split('/'); 1622 //For each module name segment, see if there is a path 1623 //registered for it. Start with most specific name 1624 //and work up from it. 1625 for (i = syms.length; i > 0; i -= 1) { 1626 parentModule = syms.slice(0, i).join('/'); 1627 1628 parentPath = getOwn(paths, parentModule); 1629 if (parentPath) { 1630 //If an array, it means there are a few choices, 1631 //Choose the one that is desired 1632 if (isArray(parentPath)) { 1633 parentPath = parentPath[0]; 1634 } 1635 syms.splice(0, i, parentPath); 1636 break; 1637 } 1638 } 1639 1640 //Join the path parts together, then figure out if baseUrl is needed. 1641 url = syms.join('/'); 1642 url += (ext || (/^data\:|\?/.test(url) || skipExt ? '' : '.js')); 1643 url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url; 1644 } 1645 1646 return config.urlArgs ? url + 1647 ((url.indexOf('?') === -1 ? '?' : '&') + 1648 config.urlArgs) : url; 1649 }, 1650 1651 //Delegates to req.load. Broken out as a separate function to 1652 //allow overriding in the optimizer. 1653 load: function (id, url) { 1654 req.load(context, id, url); 1655 }, 1656 1657 /** 1658 * Executes a module callback function. Broken out as a separate function 1659 * solely to allow the build system to sequence the files in the built 1660 * layer in the right sequence. 1661 * 1662 * @private 1663 */ 1664 execCb: function (name, callback, args, exports) { 1665 return callback.apply(exports, args); 1666 }, 1667 1668 /** 1669 * callback for script loads, used to check status of loading. 1670 * 1671 * @param {Event} evt the event from the browser for the script 1672 * that was loaded. 1673 */ 1674 onScriptLoad: function (evt) { 1675 //Using currentTarget instead of target for Firefox 2.0's sake. Not 1676 //all old browsers will be supported, but this one was easy enough 1677 //to support and still makes sense. 1678 if (evt.type === 'load' || 1679 (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) { 1680 //Reset interactive script so a script node is not held onto for 1681 //to long. 1682 interactiveScript = null; 1683 1684 //Pull out the name of the module and the context. 1685 var data = getScriptData(evt); 1686 context.completeLoad(data.id); 1687 } 1688 }, 1689 1690 /** 1691 * Callback for script errors. 1692 */ 1693 onScriptError: function (evt) { 1694 var data = getScriptData(evt); 1695 if (!hasPathFallback(data.id)) { 1696 return onError(makeError('scripterror', 'Script error for: ' + data.id, evt, [data.id])); 1697 } 1698 } 1699 }; 1700 1701 context.require = context.makeRequire(); 1702 return context; 1703 } 1704 1705 /** 1706 * Main entry point. 1707 * 1708 * If the only argument to require is a string, then the module that 1709 * is represented by that string is fetched for the appropriate context. 1710 * 1711 * If the first argument is an array, then it will be treated as an array 1712 * of dependency string names to fetch. An optional function callback can 1713 * be specified to execute when all of those dependencies are available. 1714 * 1715 * Make a local req variable to help Caja compliance (it assumes things 1716 * on a require that are not standardized), and to give a short 1717 * name for minification/local scope use. 1718 */ 1719 req = requirejs = function (deps, callback, errback, optional) { 1720 1721 //Find the right context, use default 1722 var context, config, 1723 contextName = defContextName; 1724 1725 // Determine if have config object in the call. 1726 if (!isArray(deps) && typeof deps !== 'string') { 1727 // deps is a config object 1728 config = deps; 1729 if (isArray(callback)) { 1730 // Adjust args if there are dependencies 1731 deps = callback; 1732 callback = errback; 1733 errback = optional; 1734 } else { 1735 deps = []; 1736 } 1737 } 1738 1739 if (config && config.context) { 1740 contextName = config.context; 1741 } 1742 1743 context = getOwn(contexts, contextName); 1744 if (!context) { 1745 context = contexts[contextName] = req.s.newContext(contextName); 1746 } 1747 1748 if (config) { 1749 context.configure(config); 1750 } 1751 1752 return context.require(deps, callback, errback); 1753 }; 1754 1755 /** 1756 * Support require.config() to make it easier to cooperate with other 1757 * AMD loaders on globally agreed names. 1758 */ 1759 req.config = function (config) { 1760 return req(config); 1761 }; 1762 1763 /** 1764 * Execute something after the current tick 1765 * of the event loop. Override for other envs 1766 * that have a better solution than setTimeout. 1767 * @param {Function} fn function to execute later. 1768 */ 1769 req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) { 1770 setTimeout(fn, 4); 1771 } : function (fn) { fn(); }; 1772 1773 /** 1774 * Export require as a global, but only if it does not already exist. 1775 */ 1776 if (!require) { 1777 require = req; 1778 } 1779 1780 req.version = version; 1781 1782 //Used to filter out dependencies that are already paths. 1783 req.jsExtRegExp = /^\/|:|\?|\.js$/; 1784 req.isBrowser = isBrowser; 1785 s = req.s = { 1786 contexts: contexts, 1787 newContext: newContext 1788 }; 1789 1790 //Create default context. 1791 req({}); 1792 1793 //Exports some context-sensitive methods on global require. 1794 each([ 1795 'toUrl', 1796 'undef', 1797 'defined', 1798 'specified' 1799 ], function (prop) { 1800 //Reference from contexts instead of early binding to default context, 1801 //so that during builds, the latest instance of the default context 1802 //with its config gets used. 1803 req[prop] = function () { 1804 var ctx = contexts[defContextName]; 1805 return ctx.require[prop].apply(ctx, arguments); 1806 }; 1807 }); 1808 1809 if (isBrowser) { 1810 head = s.head = document.getElementsByTagName('head')[0]; 1811 //If BASE tag is in play, using appendChild is a problem for IE6. 1812 //When that browser dies, this can be removed. Details in this jQuery bug: 1813 //http://dev.jquery.com/ticket/2709 1814 baseElement = document.getElementsByTagName('base')[0]; 1815 if (baseElement) { 1816 head = s.head = baseElement.parentNode; 1817 } 1818 } 1819 1820 /** 1821 * Any errors that require explicitly generates will be passed to this 1822 * function. Intercept/override it if you want custom error handling. 1823 * @param {Error} err the error object. 1824 */ 1825 req.onError = defaultOnError; 1826 1827 /** 1828 * Creates the node for the load command. Only used in browser envs. 1829 */ 1830 req.createNode = function (config, moduleName, url) { 1831 var node = config.xhtml ? 1832 document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') : 1833 document.createElement('script'); 1834 node.type = config.scriptType || 'text/javascript'; 1835 node.charset = 'utf-8'; 1836 node.async = true; 1837 return node; 1838 }; 1839 1840 /** 1841 * Does the request to load a module for the browser case. 1842 * Make this a separate function to allow other environments 1843 * to override it. 1844 * 1845 * @param {Object} context the require context to find state. 1846 * @param {String} moduleName the name of the module. 1847 * @param {Object} url the URL to the module. 1848 */ 1849 req.load = function (context, moduleName, url) { 1850 var config = (context && context.config) || {}, 1851 node; 1852 if (isBrowser) { 1853 //In the browser so use a script tag 1854 node = req.createNode(config, moduleName, url); 1855 1856 node.setAttribute('data-requirecontext', context.contextName); 1857 node.setAttribute('data-requiremodule', moduleName); 1858 1859 //Set up load listener. Test attachEvent first because IE9 has 1860 //a subtle issue in its addEventListener and script onload firings 1861 //that do not match the behavior of all other browsers with 1862 //addEventListener support, which fire the onload event for a 1863 //script right after the script execution. See: 1864 //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution 1865 //UNFORTUNATELY Opera implements attachEvent but does not follow the script 1866 //script execution mode. 1867 if (node.attachEvent && 1868 //Check if node.attachEvent is artificially added by custom script or 1869 //natively supported by browser 1870 //read https://github.com/jrburke/requirejs/issues/187 1871 //if we can NOT find [native code] then it must NOT natively supported. 1872 //in IE8, node.attachEvent does not have toString() 1873 //Note the test for "[native code" with no closing brace, see: 1874 //https://github.com/jrburke/requirejs/issues/273 1875 !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) && 1876 !isOpera) { 1877 //Probably IE. IE (at least 6-8) do not fire 1878 //script onload right after executing the script, so 1879 //we cannot tie the anonymous define call to a name. 1880 //However, IE reports the script as being in 'interactive' 1881 //readyState at the time of the define call. 1882 useInteractive = true; 1883 1884 node.attachEvent('onreadystatechange', context.onScriptLoad); 1885 //It would be great to add an error handler here to catch 1886 //404s in IE9+. However, onreadystatechange will fire before 1887 //the error handler, so that does not help. If addEventListener 1888 //is used, then IE will fire error before load, but we cannot 1889 //use that pathway given the connect.microsoft.com issue 1890 //mentioned above about not doing the 'script execute, 1891 //then fire the script load event listener before execute 1892 //next script' that other browsers do. 1893 //Best hope: IE10 fixes the issues, 1894 //and then destroys all installs of IE 6-9. 1895 //node.attachEvent('onerror', context.onScriptError); 1896 } else { 1897 node.addEventListener('load', context.onScriptLoad, false); 1898 node.addEventListener('error', context.onScriptError, false); 1899 } 1900 node.src = url; 1901 1902 //For some cache cases in IE 6-8, the script executes before the end 1903 //of the appendChild execution, so to tie an anonymous define 1904 //call to the module name (which is stored on the node), hold on 1905 //to a reference to this node, but clear after the DOM insertion. 1906 currentlyAddingScript = node; 1907 if (baseElement) { 1908 head.insertBefore(node, baseElement); 1909 } else { 1910 head.appendChild(node); 1911 } 1912 currentlyAddingScript = null; 1913 1914 return node; 1915 } else if (isWebWorker) { 1916 try { 1917 //In a web worker, use importScripts. This is not a very 1918 //efficient use of importScripts, importScripts will block until 1919 //its script is downloaded and evaluated. However, if web workers 1920 //are in play, the expectation that a build has been done so that 1921 //only one script needs to be loaded anyway. This may need to be 1922 //reevaluated if other use cases become common. 1923 importScripts(url); 1924 1925 //Account for anonymous modules 1926 context.completeLoad(moduleName); 1927 } catch (e) { 1928 context.onError(makeError('importscripts', 1929 'importScripts failed for ' + 1930 moduleName + ' at ' + url, 1931 e, 1932 [moduleName])); 1933 } 1934 } 1935 }; 1936 1937 function getInteractiveScript() { 1938 if (interactiveScript && interactiveScript.readyState === 'interactive') { 1939 return interactiveScript; 1940 } 1941 1942 eachReverse(scripts(), function (script) { 1943 if (script.readyState === 'interactive') { 1944 return (interactiveScript = script); 1945 } 1946 }); 1947 return interactiveScript; 1948 } 1949 1950 //Look for a data-main script attribute, which could also adjust the baseUrl. 1951 if (isBrowser && !cfg.skipDataMain) { 1952 //Figure out baseUrl. Get it from the script tag with require.js in it. 1953 eachReverse(scripts(), function (script) { 1954 //Set the 'head' where we can append children by 1955 //using the script's parent. 1956 if (!head) { 1957 head = script.parentNode; 1958 } 1959 1960 //Look for a data-main attribute to set main script for the page 1961 //to load. If it is there, the path to data main becomes the 1962 //baseUrl, if it is not already set. 1963 dataMain = script.getAttribute('data-main'); 1964 if (dataMain) { 1965 //Preserve dataMain in case it is a path (i.e. contains '?') 1966 mainScript = dataMain; 1967 1968 //Set final baseUrl if there is not already an explicit one. 1969 if (!cfg.baseUrl) { 1970 //Pull off the directory of data-main for use as the 1971 //baseUrl. 1972 src = mainScript.split('/'); 1973 mainScript = src.pop(); 1974 subPath = src.length ? src.join('/') + '/' : './'; 1975 1976 cfg.baseUrl = subPath; 1977 } 1978 1979 //Strip off any trailing .js since mainScript is now 1980 //like a module name. 1981 mainScript = mainScript.replace(jsSuffixRegExp, ''); 1982 1983 //If mainScript is still a path, fall back to dataMain 1984 if (req.jsExtRegExp.test(mainScript)) { 1985 mainScript = dataMain; 1986 } 1987 1988 //Put the data-main script in the files to load. 1989 cfg.deps = cfg.deps ? cfg.deps.concat(mainScript) : [mainScript]; 1990 1991 return true; 1992 } 1993 }); 1994 } 1995 1996 /** 1997 * The function that handles definitions of modules. Differs from 1998 * require() in that a string for the module should be the first argument, 1999 * and the function to execute after dependencies are loaded should 2000 * return a value to define the module corresponding to the first argument's 2001 * name. 2002 */ 2003 define = function (name, deps, callback) { 2004 var node, context; 2005 2006 //Allow for anonymous modules 2007 if (typeof name !== 'string') { 2008 //Adjust args appropriately 2009 callback = deps; 2010 deps = name; 2011 name = null; 2012 } 2013 2014 //This module may not have dependencies 2015 if (!isArray(deps)) { 2016 callback = deps; 2017 deps = null; 2018 } 2019
2020 //If no name, and callback is a function, then figure out if it a 2021 //CommonJS thing with dependencies. 2022 if (!deps && isFunction(callback)) { 2023 deps = []; 2024 //Remove comments from the callback string, 2025 //look for require calls, and pull them into the dependencies, 2026 //but only if there are function args. 2027 if (callback.length) { 2028 callback 2029 .toString() 2030 .replace(commentRegExp, '') 2031 .replace(cjsRequireRegExp, function (match, dep) { 2032 deps.push(dep); 2033 }); 2034 2035 //May be a CommonJS thing even without require calls, but still 2036 //could use exports, and module. Avoid doing exports and module 2037 //work though if it just needs require. 2038 //REQUIRES the function to expect the CommonJS variables in the 2039 //order listed below. 2040 deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps); 2041 } 2042 } 2043 2044 //If in IE 6-8 and hit an anonymous define() call, do the interactive 2045 //work. 2046 if (useInteractive) { 2047 node = currentlyAddingScript || getInteractiveScript(); 2048 if (node) { 2049 if (!name) { 2050 name = node.getAttribute('data-requiremodule'); 2051 } 2052 context = contexts[node.getAttribute('data-requirecontext')]; 2053 } 2054 } 2055 2056 //Always save off evaluating the def call until the script onload handler. 2057 //This allows multiple modules to be in a file without prematurely 2058 //tracing dependencies, and allows for anonymous module support, 2059 //where the module name is not known until the script onload event 2060 //occurs. If no context, use the global queue, and get it processed 2061 //in the onscript load callback. 2062 (context ? context.defQueue : globalDefQueue).push([name, deps, callback]); 2063 }; 2064 2065 define.amd = { 2066 jQuery: true 2067 }; 2068 2069 2070 /** 2071 * Executes the text. Normally just uses eval, but can be modified 2072 * to use a better, environment-specific call. Only used for transpiling 2073 * loader plugins, not for plain JS modules. 2074 * @param {String} text the text to execute/evaluate. 2075 */ 2076 req.exec = function (text) { 2077 /*jslint evil: true */ 2078 return eval(text); 2079 }; 2080 2081 //Set up with config info. 2082 req(cfg); 2083}(this));
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