requirejs.js
2145 lines
| 1 | /** vim: et:ts=4:sw=4:sts=4 |
| 2 | * @license RequireJS 2.3.5 Copyright jQuery Foundation and other contributors. |
| 3 | * Released under MIT license, https://github.com/requirejs/requirejs/blob/master/LICENSE |
| 4 | */ |
| 5 | //Not using strict: uneven strict support in browsers, #392, and causes |
| 6 | //problems with requirejs.exec()/transpiler plugins that may not be strict. |
| 7 | /*jslint regexp: true, nomen: true, sloppy: true */ |
| 8 | /*global window, navigator, document, importScripts, setTimeout, opera */ |
| 9 | |
| 10 | var requirejs, require, define; |
| 11 | (function (global, setTimeout) { |
| 12 | var req, s, head, baseElement, dataMain, src, |
| 13 | interactiveScript, currentlyAddingScript, mainScript, subPath, |
| 14 | version = '2.3.5', |
| 15 | commentRegExp = /\/\*[\s\S]*?\*\/|([^:"'=]|^)\/\/.*$/mg, |
| 16 | cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g, |
| 17 | jsSuffixRegExp = /\.js$/, |
| 18 | currDirRegExp = /^\.\//, |
| 19 | op = Object.prototype, |
| 20 | ostring = op.toString, |
| 21 | hasOwn = op.hasOwnProperty, |
| 22 | isBrowser = !!(typeof window !== 'undefined' && typeof navigator !== 'undefined' && window.document), |
| 23 | isWebWorker = !isBrowser && typeof importScripts !== 'undefined', |
| 24 | //PS3 indicates loaded and complete, but need to wait for complete |
| 25 | //specifically. Sequence is 'loading', 'loaded', execution, |
| 26 | // then 'complete'. The UA check is unfortunate, but not sure how |
| 27 | //to feature test w/o causing perf issues. |
| 28 | readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ? |
| 29 | /^complete$/ : /^(complete|loaded)$/, |
| 30 | defContextName = '_', |
| 31 | //Oh the tragedy, detecting opera. See the usage of isOpera for reason. |
| 32 | isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]', |
| 33 | contexts = {}, |
| 34 | cfg = {}, |
| 35 | globalDefQueue = [], |
| 36 | useInteractive = false; |
| 37 | |
| 38 | //Could match something like ')//comment', do not lose the prefix to comment. |
| 39 | function commentReplace(match, singlePrefix) { |
| 40 | return singlePrefix || ''; |
| 41 | } |
| 42 | |
| 43 | function isFunction(it) { |
| 44 | return ostring.call(it) === '[object Function]'; |
| 45 | } |
| 46 | |
| 47 | function isArray(it) { |
| 48 | return ostring.call(it) === '[object Array]'; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Helper function for iterating over an array. If the func returns |
| 53 | * a true value, it will break out of the loop. |
| 54 | */ |
| 55 | function each(ary, func) { |
| 56 | if (ary) { |
| 57 | var i; |
| 58 | for (i = 0; i < ary.length; i += 1) { |
| 59 | if (ary[i] && func(ary[i], i, ary)) { |
| 60 | break; |
| 61 | } |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * Helper function for iterating over an array backwards. If the func |
| 68 | * returns a true value, it will break out of the loop. |
| 69 | */ |
| 70 | function eachReverse(ary, func) { |
| 71 | if (ary) { |
| 72 | var i; |
| 73 | for (i = ary.length - 1; i > -1; i -= 1) { |
| 74 | if (ary[i] && func(ary[i], i, ary)) { |
| 75 | break; |
| 76 | } |
| 77 | } |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | function hasProp(obj, prop) { |
| 82 | return hasOwn.call(obj, prop); |
| 83 | } |
| 84 | |
| 85 | function getOwn(obj, prop) { |
| 86 | return hasProp(obj, prop) && obj[prop]; |
| 87 | } |
| 88 | |
| 89 | /** |
| 90 | * Cycles over properties in an object and calls a function for each |
| 91 | * property value. If the function returns a truthy value, then the |
| 92 | * iteration is stopped. |
| 93 | */ |
| 94 | function eachProp(obj, func) { |
| 95 | var prop; |
| 96 | for (prop in obj) { |
| 97 | if (hasProp(obj, prop)) { |
| 98 | if (func(obj[prop], prop)) { |
| 99 | break; |
| 100 | } |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | /** |
| 106 | * Simple function to mix in properties from source into target, |
| 107 | * but only if target does not already have a property of the same name. |
| 108 | */ |
| 109 | function mixin(target, source, force, deepStringMixin) { |
| 110 | if (source) { |
| 111 | eachProp(source, function (value, prop) { |
| 112 | if (force || !hasProp(target, prop)) { |
| 113 | if (deepStringMixin && typeof value === 'object' && value && |
| 114 | !isArray(value) && !isFunction(value) && |
| 115 | !(value instanceof RegExp)) { |
| 116 | |
| 117 | if (!target[prop]) { |
| 118 | target[prop] = {}; |
| 119 | } |
| 120 | mixin(target[prop], value, force, deepStringMixin); |
| 121 | } else { |
| 122 | target[prop] = value; |
| 123 | } |
| 124 | } |
| 125 | }); |
| 126 | } |
| 127 | return target; |
| 128 | } |
| 129 | |
| 130 | //Similar to Function.prototype.bind, but the 'this' object is specified |
| 131 | //first, since it is easier to read/figure out what 'this' will be. |
| 132 | function bind(obj, fn) { |
| 133 | return function () { |
| 134 | return fn.apply(obj, arguments); |
| 135 | }; |
| 136 | } |
| 137 | |
| 138 | function scripts() { |
| 139 | return document.getElementsByTagName('script'); |
| 140 | } |
| 141 | |
| 142 | function defaultOnError(err) { |
| 143 | throw err; |
| 144 | } |
| 145 | |
| 146 | //Allow getting a global that is expressed in |
| 147 | //dot notation, like 'a.b.c'. |
| 148 | function getGlobal(value) { |
| 149 | if (!value) { |
| 150 | return value; |
| 151 | } |
| 152 | var g = global; |
| 153 | each(value.split('.'), function (part) { |
| 154 | g = g[part]; |
| 155 | }); |
| 156 | return g; |
| 157 | } |
| 158 | |
| 159 | /** |
| 160 | * Constructs an error with a pointer to an URL with more information. |
| 161 | * @param {String} id the error ID that maps to an ID on a web page. |
| 162 | * @param {String} message human readable error. |
| 163 | * @param {Error} [err] the original error, if there is one. |
| 164 | * |
| 165 | * @returns {Error} |
| 166 | */ |
| 167 | function makeError(id, msg, err, requireModules) { |
| 168 | var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id); |
| 169 | e.requireType = id; |
| 170 | e.requireModules = requireModules; |
| 171 | if (err) { |
| 172 | e.originalError = err; |
| 173 | } |
| 174 | return e; |
| 175 | } |
| 176 | |
| 177 | if (typeof define !== 'undefined') { |
| 178 | //If a define is already in play via another AMD loader, |
| 179 | //do not overwrite. |
| 180 | return; |
| 181 | } |
| 182 | |
| 183 | if (typeof requirejs !== 'undefined') { |
| 184 | if (isFunction(requirejs)) { |
| 185 | //Do not overwrite an existing requirejs instance. |
| 186 | return; |
| 187 | } |
| 188 | cfg = requirejs; |
| 189 | requirejs = undefined; |
| 190 | } |
| 191 | |
| 192 | //Allow for a require config object |
| 193 | if (typeof require !== 'undefined' && !isFunction(require)) { |
| 194 | //assume it is a config object. |
| 195 | cfg = require; |
| 196 | require = undefined; |
| 197 | } |
| 198 | |
| 199 | function newContext(contextName) { |
| 200 | var inCheckLoaded, Module, context, handlers, |
| 201 | checkLoadedTimeoutId, |
| 202 | config = { |
| 203 | //Defaults. Do not set a default for map |
| 204 | //config to speed up normalize(), which |
| 205 | //will run faster if there is no default. |
| 206 | waitSeconds: 7, |
| 207 | baseUrl: './', |
| 208 | paths: {}, |
| 209 | bundles: {}, |
| 210 | pkgs: {}, |
| 211 | shim: {}, |
| 212 | config: {} |
| 213 | }, |
| 214 | registry = {}, |
| 215 | //registry of just enabled modules, to speed |
| 216 | //cycle breaking code when lots of modules |
| 217 | //are registered, but not activated. |
| 218 | enabledRegistry = {}, |
| 219 | undefEvents = {}, |
| 220 | defQueue = [], |
| 221 | defined = {}, |
| 222 | urlFetched = {}, |
| 223 | bundlesMap = {}, |
| 224 | requireCounter = 1, |
| 225 | unnormalizedCounter = 1; |
| 226 | |
| 227 | /** |
| 228 | * Trims the . and .. from an array of path segments. |
| 229 | * It will keep a leading path segment if a .. will become |
| 230 | * the first path segment, to help with module name lookups, |
| 231 | * which act like paths, but can be remapped. But the end result, |
| 232 | * all paths that use this function should look normalized. |
| 233 | * NOTE: this method MODIFIES the input array. |
| 234 | * @param {Array} ary the array of path segments. |
| 235 | */ |
| 236 | function trimDots(ary) { |
| 237 | var i, part; |
| 238 | for (i = 0; i < ary.length; i++) { |
| 239 | part = ary[i]; |
| 240 | if (part === '.') { |
| 241 | ary.splice(i, 1); |
| 242 | i -= 1; |
| 243 | } else if (part === '..') { |
| 244 | // If at the start, or previous value is still .., |
| 245 | // keep them so that when converted to a path it may |
| 246 | // still work when converted to a path, even though |
| 247 | // as an ID it is less than ideal. In larger point |
| 248 | // releases, may be better to just kick out an error. |
| 249 | if (i === 0 || (i === 1 && ary[2] === '..') || ary[i - 1] === '..') { |
| 250 | continue; |
| 251 | } else if (i > 0) { |
| 252 | ary.splice(i - 1, 2); |
| 253 | i -= 2; |
| 254 | } |
| 255 | } |
| 256 | } |
| 257 | } |
| 258 | |
| 259 | /** |
| 260 | * Given a relative module name, like ./something, normalize it to |
| 261 | * a real name that can be mapped to a path. |
| 262 | * @param {String} name the relative name |
| 263 | * @param {String} baseName a real name that the name arg is relative |
| 264 | * to. |
| 265 | * @param {Boolean} applyMap apply the map config to the value. Should |
| 266 | * only be done if this normalization is for a dependency ID. |
| 267 | * @returns {String} normalized name |
| 268 | */ |
| 269 | function normalize(name, baseName, applyMap) { |
| 270 | var pkgMain, mapValue, nameParts, i, j, nameSegment, lastIndex, |
| 271 | foundMap, foundI, foundStarMap, starI, normalizedBaseParts, |
| 272 | baseParts = (baseName && baseName.split('/')), |
| 273 | map = config.map, |
| 274 | starMap = map && map['*']; |
| 275 | |
| 276 | //Adjust any relative paths. |
| 277 | if (name) { |
| 278 | name = name.split('/'); |
| 279 | lastIndex = name.length - 1; |
| 280 | |
| 281 | // If wanting node ID compatibility, strip .js from end |
| 282 | // of IDs. Have to do this here, and not in nameToUrl |
| 283 | // because node allows either .js or non .js to map |
| 284 | // to same file. |
| 285 | if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) { |
| 286 | name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, ''); |
| 287 | } |
| 288 | |
| 289 | // Starts with a '.' so need the baseName |
| 290 | if (name[0].charAt(0) === '.' && baseParts) { |
| 291 | //Convert baseName to array, and lop off the last part, |
| 292 | //so that . matches that 'directory' and not name of the baseName's |
| 293 | //module. For instance, baseName of 'one/two/three', maps to |
| 294 | //'one/two/three.js', but we want the directory, 'one/two' for |
| 295 | //this normalization. |
| 296 | normalizedBaseParts = baseParts.slice(0, baseParts.length - 1); |
| 297 | name = normalizedBaseParts.concat(name); |
| 298 | } |
| 299 | |
| 300 | trimDots(name); |
| 301 | name = name.join('/'); |
| 302 | } |
| 303 | |
| 304 | //Apply map config if available. |
| 305 | if (applyMap && map && (baseParts || starMap)) { |
| 306 | nameParts = name.split('/'); |
| 307 | |
| 308 | outerLoop: for (i = nameParts.length; i > 0; i -= 1) { |
| 309 | nameSegment = nameParts.slice(0, i).join('/'); |
| 310 | |
| 311 | if (baseParts) { |
| 312 | //Find the longest baseName segment match in the config. |
| 313 | //So, do joins on the biggest to smallest lengths of baseParts. |
| 314 | for (j = baseParts.length; j > 0; j -= 1) { |
| 315 | mapValue = getOwn(map, baseParts.slice(0, j).join('/')); |
| 316 | |
| 317 | //baseName segment has config, find if it has one for |
| 318 | //this name. |
| 319 | if (mapValue) { |
| 320 | mapValue = getOwn(mapValue, nameSegment); |
| 321 | if (mapValue) { |
| 322 | //Match, update name to the new value. |
| 323 | foundMap = mapValue; |
| 324 | foundI = i; |
| 325 | break outerLoop; |
| 326 | } |
| 327 | } |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | //Check for a star map match, but just hold on to it, |
| 332 | //if there is a shorter segment match later in a matching |
| 333 | //config, then favor over this star map. |
| 334 | if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) { |
| 335 | foundStarMap = getOwn(starMap, nameSegment); |
| 336 | starI = i; |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | if (!foundMap && foundStarMap) { |
| 341 | foundMap = foundStarMap; |
| 342 | foundI = starI; |
| 343 | } |
| 344 | |
| 345 | if (foundMap) { |
| 346 | nameParts.splice(0, foundI, foundMap); |
| 347 | name = nameParts.join('/'); |
| 348 | } |
| 349 | } |
| 350 | |
| 351 | // If the name points to a package's name, use |
| 352 | // the package main instead. |
| 353 | pkgMain = getOwn(config.pkgs, name); |
| 354 | |
| 355 | return pkgMain ? pkgMain : name; |
| 356 | } |
| 357 | |
| 358 | function removeScript(name) { |
| 359 | if (isBrowser) { |
| 360 | each(scripts(), function (scriptNode) { |
| 361 | if (scriptNode.getAttribute('data-requiremodule') === name && |
| 362 | scriptNode.getAttribute('data-requirecontext') === context.contextName) { |
| 363 | scriptNode.parentNode.removeChild(scriptNode); |
| 364 | return true; |
| 365 | } |
| 366 | }); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | function hasPathFallback(id) { |
| 371 | var pathConfig = getOwn(config.paths, id); |
| 372 | if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) { |
| 373 | //Pop off the first array value, since it failed, and |
| 374 | //retry |
| 375 | pathConfig.shift(); |
| 376 | context.require.undef(id); |
| 377 | |
| 378 | //Custom require that does not do map translation, since |
| 379 | //ID is "absolute", already mapped/resolved. |
| 380 | context.makeRequire(null, { |
| 381 | skipMap: true |
| 382 | })([id]); |
| 383 | |
| 384 | return true; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | //Turns a plugin!resource to [plugin, resource] |
| 389 | //with the plugin being undefined if the name |
| 390 | //did not have a plugin prefix. |
| 391 | function splitPrefix(name) { |
| 392 | var prefix, |
| 393 | index = name ? name.indexOf('!') : -1; |
| 394 | if (index > -1) { |
| 395 | prefix = name.substring(0, index); |
| 396 | name = name.substring(index + 1, name.length); |
| 397 | } |
| 398 | return [prefix, name]; |
| 399 | } |
| 400 | |
| 401 | /** |
| 402 | * Creates a module mapping that includes plugin prefix, module |
| 403 | * name, and path. If parentModuleMap is provided it will |
| 404 | * also normalize the name via require.normalize() |
| 405 | * |
| 406 | * @param {String} name the module name |
| 407 | * @param {String} [parentModuleMap] parent module map |
| 408 | * for the module name, used to resolve relative names. |
| 409 | * @param {Boolean} isNormalized: is the ID already normalized. |
| 410 | * This is true if this call is done for a define() module ID. |
| 411 | * @param {Boolean} applyMap: apply the map config to the ID. |
| 412 | * Should only be true if this map is for a dependency. |
| 413 | * |
| 414 | * @returns {Object} |
| 415 | */ |
| 416 | function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) { |
| 417 | var url, pluginModule, suffix, nameParts, |
| 418 | prefix = null, |
| 419 | parentName = parentModuleMap ? parentModuleMap.name : null, |
| 420 | originalName = name, |
| 421 | isDefine = true, |
| 422 | normalizedName = ''; |
| 423 | |
| 424 | //If no name, then it means it is a require call, generate an |
| 425 | //internal name. |
| 426 | if (!name) { |
| 427 | isDefine = false; |
| 428 | name = '_@r' + (requireCounter += 1); |
| 429 | } |
| 430 | |
| 431 | nameParts = splitPrefix(name); |
| 432 | prefix = nameParts[0]; |
| 433 | name = nameParts[1]; |
| 434 | |
| 435 | if (prefix) { |
| 436 | prefix = normalize(prefix, parentName, applyMap); |
| 437 | pluginModule = getOwn(defined, prefix); |
| 438 | } |
| 439 | |
| 440 | //Account for relative paths if there is a base name. |
| 441 | if (name) { |
| 442 | if (prefix) { |
| 443 | if (isNormalized) { |
| 444 | normalizedName = name; |
| 445 | } else if (pluginModule && pluginModule.normalize) { |
| 446 | //Plugin is loaded, use its normalize method. |
| 447 | normalizedName = pluginModule.normalize(name, function (name) { |
| 448 | return normalize(name, parentName, applyMap); |
| 449 | }); |
| 450 | } else { |
| 451 | // If nested plugin references, then do not try to |
| 452 | // normalize, as it will not normalize correctly. This |
| 453 | // places a restriction on resourceIds, and the longer |
| 454 | // term solution is not to normalize until plugins are |
| 455 | // loaded and all normalizations to allow for async |
| 456 | // loading of a loader plugin. But for now, fixes the |
| 457 | // common uses. Details in #1131 |
| 458 | normalizedName = name.indexOf('!') === -1 ? |
| 459 | normalize(name, parentName, applyMap) : |
| 460 | name; |
| 461 | } |
| 462 | } else { |
| 463 | //A regular module. |
| 464 | normalizedName = normalize(name, parentName, applyMap); |
| 465 | |
| 466 | //Normalized name may be a plugin ID due to map config |
| 467 | //application in normalize. The map config values must |
| 468 | //already be normalized, so do not need to redo that part. |
| 469 | nameParts = splitPrefix(normalizedName); |
| 470 | prefix = nameParts[0]; |
| 471 | normalizedName = nameParts[1]; |
| 472 | isNormalized = true; |
| 473 | |
| 474 | url = context.nameToUrl(normalizedName); |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | //If the id is a plugin id that cannot be determined if it needs |
| 479 | //normalization, stamp it with a unique ID so two matching relative |
| 480 | //ids that may conflict can be separate. |
| 481 | suffix = prefix && !pluginModule && !isNormalized ? |
| 482 | '_unnormalized' + (unnormalizedCounter += 1) : |
| 483 | ''; |
| 484 | |
| 485 | return { |
| 486 | prefix: prefix, |
| 487 | name: normalizedName, |
| 488 | parentMap: parentModuleMap, |
| 489 | unnormalized: !!suffix, |
| 490 | url: url, |
| 491 | originalName: originalName, |
| 492 | isDefine: isDefine, |
| 493 | id: (prefix ? |
| 494 | prefix + '!' + normalizedName : |
| 495 | normalizedName) + suffix |
| 496 | }; |
| 497 | } |
| 498 | |
| 499 | function getModule(depMap) { |
| 500 | var id = depMap.id, |
| 501 | mod = getOwn(registry, id); |
| 502 | |
| 503 | if (!mod) { |
| 504 | mod = registry[id] = new context.Module(depMap); |
| 505 | } |
| 506 | |
| 507 | return mod; |
| 508 | } |
| 509 | |
| 510 | function on(depMap, name, fn) { |
| 511 | var id = depMap.id, |
| 512 | mod = getOwn(registry, id); |
| 513 | |
| 514 | if (hasProp(defined, id) && |
| 515 | (!mod || mod.defineEmitComplete)) { |
| 516 | if (name === 'defined') { |
| 517 | fn(defined[id]); |
| 518 | } |
| 519 | } else { |
| 520 | mod = getModule(depMap); |
| 521 | if (mod.error && name === 'error') { |
| 522 | fn(mod.error); |
| 523 | } else { |
| 524 | mod.on(name, fn); |
| 525 | } |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | function onError(err, errback) { |
| 530 | var ids = err.requireModules, |
| 531 | notified = false; |
| 532 | |
| 533 | if (errback) { |
| 534 | errback(err); |
| 535 | } else { |
| 536 | each(ids, function (id) { |
| 537 | var mod = getOwn(registry, id); |
| 538 | if (mod) { |
| 539 | //Set error on module, so it skips timeout checks. |
| 540 | mod.error = err; |
| 541 | if (mod.events.error) { |
| 542 | notified = true; |
| 543 | mod.emit('error', err); |
| 544 | } |
| 545 | } |
| 546 | }); |
| 547 | |
| 548 | if (!notified) { |
| 549 | req.onError(err); |
| 550 | } |
| 551 | } |
| 552 | } |
| 553 | |
| 554 | /** |
| 555 | * Internal method to transfer globalQueue items to this context's |
| 556 | * defQueue. |
| 557 | */ |
| 558 | function takeGlobalQueue() { |
| 559 | //Push all the globalDefQueue items into the context's defQueue |
| 560 | if (globalDefQueue.length) { |
| 561 | each(globalDefQueue, function(queueItem) { |
| 562 | var id = queueItem[0]; |
| 563 | if (typeof id === 'string') { |
| 564 | context.defQueueMap[id] = true; |
| 565 | } |
| 566 | defQueue.push(queueItem); |
| 567 | }); |
| 568 | globalDefQueue = []; |
| 569 | } |
| 570 | } |
| 571 | |
| 572 | handlers = { |
| 573 | 'require': function (mod) { |
| 574 | if (mod.require) { |
| 575 | return mod.require; |
| 576 | } else { |
| 577 | return (mod.require = context.makeRequire(mod.map)); |
| 578 | } |
| 579 | }, |
| 580 | 'exports': function (mod) { |
| 581 | mod.usingExports = true; |
| 582 | if (mod.map.isDefine) { |
| 583 | if (mod.exports) { |
| 584 | return (defined[mod.map.id] = mod.exports); |
| 585 | } else { |
| 586 | return (mod.exports = defined[mod.map.id] = {}); |
| 587 | } |
| 588 | } |
| 589 | }, |
| 590 | 'module': function (mod) { |
| 591 | if (mod.module) { |
| 592 | return mod.module; |
| 593 | } else { |
| 594 | return (mod.module = { |
| 595 | id: mod.map.id, |
| 596 | uri: mod.map.url, |
| 597 | config: function () { |
| 598 | return getOwn(config.config, mod.map.id) || {}; |
| 599 | }, |
| 600 | exports: mod.exports || (mod.exports = {}) |
| 601 | }); |
| 602 | } |
| 603 | } |
| 604 | }; |
| 605 | |
| 606 | function cleanRegistry(id) { |
| 607 | //Clean up machinery used for waiting modules. |
| 608 | delete registry[id]; |
| 609 | delete enabledRegistry[id]; |
| 610 | } |
| 611 | |
| 612 | function breakCycle(mod, traced, processed) { |
| 613 | var id = mod.map.id; |
| 614 | |
| 615 | if (mod.error) { |
| 616 | mod.emit('error', mod.error); |
| 617 | } else { |
| 618 | traced[id] = true; |
| 619 | each(mod.depMaps, function (depMap, i) { |
| 620 | var depId = depMap.id, |
| 621 | dep = getOwn(registry, depId); |
| 622 | |
| 623 | //Only force things that have not completed |
| 624 | //being defined, so still in the registry, |
| 625 | //and only if it has not been matched up |
| 626 | //in the module already. |
| 627 | if (dep && !mod.depMatched[i] && !processed[depId]) { |
| 628 | if (getOwn(traced, depId)) { |
| 629 | mod.defineDep(i, defined[depId]); |
| 630 | mod.check(); //pass false? |
| 631 | } else { |
| 632 | breakCycle(dep, traced, processed); |
| 633 | } |
| 634 | } |
| 635 | }); |
| 636 | processed[id] = true; |
| 637 | } |
| 638 | } |
| 639 | |
| 640 | function checkLoaded() { |
| 641 | var err, usingPathFallback, |
| 642 | waitInterval = config.waitSeconds * 1000, |
| 643 | //It is possible to disable the wait interval by using waitSeconds of 0. |
| 644 | expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(), |
| 645 | noLoads = [], |
| 646 | reqCalls = [], |
| 647 | stillLoading = false, |
| 648 | needCycleCheck = true; |
| 649 | |
| 650 | //Do not bother if this call was a result of a cycle break. |
| 651 | if (inCheckLoaded) { |
| 652 | return; |
| 653 | } |
| 654 | |
| 655 | inCheckLoaded = true; |
| 656 | |
| 657 | //Figure out the state of all the modules. |
| 658 | eachProp(enabledRegistry, function (mod) { |
| 659 | var map = mod.map, |
| 660 | modId = map.id; |
| 661 | |
| 662 | //Skip things that are not enabled or in error state. |
| 663 | if (!mod.enabled) { |
| 664 | return; |
| 665 | } |
| 666 | |
| 667 | if (!map.isDefine) { |
| 668 | reqCalls.push(mod); |
| 669 | } |
| 670 | |
| 671 | if (!mod.error) { |
| 672 | //If the module should be executed, and it has not |
| 673 | //been inited and time is up, remember it. |
| 674 | if (!mod.inited && expired) { |
| 675 | if (hasPathFallback(modId)) { |
| 676 | usingPathFallback = true; |
| 677 | stillLoading = true; |
| 678 | } else { |
| 679 | noLoads.push(modId); |
| 680 | removeScript(modId); |
| 681 | } |
| 682 | } else if (!mod.inited && mod.fetched && map.isDefine) { |
| 683 | stillLoading = true; |
| 684 | if (!map.prefix) { |
| 685 | //No reason to keep looking for unfinished |
| 686 | //loading. If the only stillLoading is a |
| 687 | //plugin resource though, keep going, |
| 688 | //because it may be that a plugin resource |
| 689 | //is waiting on a non-plugin cycle. |
| 690 | return (needCycleCheck = false); |
| 691 | } |
| 692 | } |
| 693 | } |
| 694 | }); |
| 695 | |
| 696 | if (expired && noLoads.length) { |
| 697 | //If wait time expired, throw error of unloaded modules. |
| 698 | err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads); |
| 699 | err.contextName = context.contextName; |
| 700 | return onError(err); |
| 701 | } |
| 702 | |
| 703 | //Not expired, check for a cycle. |
| 704 | if (needCycleCheck) { |
| 705 | each(reqCalls, function (mod) { |
| 706 | breakCycle(mod, {}, {}); |
| 707 | }); |
| 708 | } |
| 709 | |
| 710 | //If still waiting on loads, and the waiting load is something |
| 711 | //other than a plugin resource, or there are still outstanding |
| 712 | //scripts, then just try back later. |
| 713 | if ((!expired || usingPathFallback) && stillLoading) { |
| 714 | //Something is still waiting to load. Wait for it, but only |
| 715 | //if a timeout is not already in effect. |
| 716 | if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) { |
| 717 | checkLoadedTimeoutId = setTimeout(function () { |
| 718 | checkLoadedTimeoutId = 0; |
| 719 | checkLoaded(); |
| 720 | }, 50); |
| 721 | } |
| 722 | } |
| 723 | |
| 724 | inCheckLoaded = false; |
| 725 | } |
| 726 | |
| 727 | Module = function (map) { |
| 728 | this.events = getOwn(undefEvents, map.id) || {}; |
| 729 | this.map = map; |
| 730 | this.shim = getOwn(config.shim, map.id); |
| 731 | this.depExports = []; |
| 732 | this.depMaps = []; |
| 733 | this.depMatched = []; |
| 734 | this.pluginMaps = {}; |
| 735 | this.depCount = 0; |
| 736 | |
| 737 | /* this.exports this.factory |
| 738 | this.depMaps = [], |
| 739 | this.enabled, this.fetched |
| 740 | */ |
| 741 | }; |
| 742 | |
| 743 | Module.prototype = { |
| 744 | init: function (depMaps, factory, errback, options) { |
| 745 | options = options || {}; |
| 746 | |
| 747 | //Do not do more inits if already done. Can happen if there |
| 748 | //are multiple define calls for the same module. That is not |
| 749 | //a normal, common case, but it is also not unexpected. |
| 750 | if (this.inited) { |
| 751 | return; |
| 752 | } |
| 753 | |
| 754 | this.factory = factory; |
| 755 | |
| 756 | if (errback) { |
| 757 | //Register for errors on this module. |
| 758 | this.on('error', errback); |
| 759 | } else if (this.events.error) { |
| 760 | //If no errback already, but there are error listeners |
| 761 | //on this module, set up an errback to pass to the deps. |
| 762 | errback = bind(this, function (err) { |
| 763 | this.emit('error', err); |
| 764 | }); |
| 765 | } |
| 766 | |
| 767 | //Do a copy of the dependency array, so that |
| 768 | //source inputs are not modified. For example |
| 769 | //"shim" deps are passed in here directly, and |
| 770 | //doing a direct modification of the depMaps array |
| 771 | //would affect that config. |
| 772 | this.depMaps = depMaps && depMaps.slice(0); |
| 773 | |
| 774 | this.errback = errback; |
| 775 | |
| 776 | //Indicate this module has be initialized |
| 777 | this.inited = true; |
| 778 | |
| 779 | this.ignore = options.ignore; |
| 780 | |
| 781 | //Could have option to init this module in enabled mode, |
| 782 | //or could have been previously marked as enabled. However, |
| 783 | //the dependencies are not known until init is called. So |
| 784 | //if enabled previously, now trigger dependencies as enabled. |
| 785 | if (options.enabled || this.enabled) { |
| 786 | //Enable this module and dependencies. |
| 787 | //Will call this.check() |
| 788 | this.enable(); |
| 789 | } else { |
| 790 | this.check(); |
| 791 | } |
| 792 | }, |
| 793 | |
| 794 | defineDep: function (i, depExports) { |
| 795 | //Because of cycles, defined callback for a given |
| 796 | //export can be called more than once. |
| 797 | if (!this.depMatched[i]) { |
| 798 | this.depMatched[i] = true; |
| 799 | this.depCount -= 1; |
| 800 | this.depExports[i] = depExports; |
| 801 | } |
| 802 | }, |
| 803 | |
| 804 | fetch: function () { |
| 805 | if (this.fetched) { |
| 806 | return; |
| 807 | } |
| 808 | this.fetched = true; |
| 809 | |
| 810 | context.startTime = (new Date()).getTime(); |
| 811 | |
| 812 | var map = this.map; |
| 813 | |
| 814 | //If the manager is for a plugin managed resource, |
| 815 | //ask the plugin to load it now. |
| 816 | if (this.shim) { |
| 817 | context.makeRequire(this.map, { |
| 818 | enableBuildCallback: true |
| 819 | })(this.shim.deps || [], bind(this, function () { |
| 820 | return map.prefix ? this.callPlugin() : this.load(); |
| 821 | })); |
| 822 | } else { |
| 823 | //Regular dependency. |
| 824 | return map.prefix ? this.callPlugin() : this.load(); |
| 825 | } |
| 826 | }, |
| 827 | |
| 828 | load: function () { |
| 829 | var url = this.map.url; |
| 830 | |
| 831 | //Regular dependency. |
| 832 | if (!urlFetched[url]) { |
| 833 | urlFetched[url] = true; |
| 834 | context.load(this.map.id, url); |
| 835 | } |
| 836 | }, |
| 837 | |
| 838 | /** |
| 839 | * Checks if the module is ready to define itself, and if so, |
| 840 | * define it. |
| 841 | */ |
| 842 | check: function () { |
| 843 | if (!this.enabled || this.enabling) { |
| 844 | return; |
| 845 | } |
| 846 | |
| 847 | var err, cjsModule, |
| 848 | id = this.map.id, |
| 849 | depExports = this.depExports, |
| 850 | exports = this.exports, |
| 851 | factory = this.factory; |
| 852 | |
| 853 | if (!this.inited) { |
| 854 | // Only fetch if not already in the defQueue. |
| 855 | if (!hasProp(context.defQueueMap, id)) { |
| 856 | this.fetch(); |
| 857 | } |
| 858 | } else if (this.error) { |
| 859 | this.emit('error', this.error); |
| 860 | } else if (!this.defining) { |
| 861 | //The factory could trigger another require call |
| 862 | //that would result in checking this module to |
| 863 | //define itself again. If already in the process |
| 864 | //of doing that, skip this work. |
| 865 | this.defining = true; |
| 866 | |
| 867 | if (this.depCount < 1 && !this.defined) { |
| 868 | if (isFunction(factory)) { |
| 869 | //If there is an error listener, favor passing |
| 870 | //to that instead of throwing an error. However, |
| 871 | //only do it for define()'d modules. require |
| 872 | //errbacks should not be called for failures in |
| 873 | //their callbacks (#699). However if a global |
| 874 | //onError is set, use that. |
| 875 | if ((this.events.error && this.map.isDefine) || |
| 876 | req.onError !== defaultOnError) { |
| 877 | try { |
| 878 | exports = context.execCb(id, factory, depExports, exports); |
| 879 | } catch (e) { |
| 880 | err = e; |
| 881 | } |
| 882 | } else { |
| 883 | exports = context.execCb(id, factory, depExports, exports); |
| 884 | } |
| 885 | |
| 886 | // Favor return value over exports. If node/cjs in play, |
| 887 | // then will not have a return value anyway. Favor |
| 888 | // module.exports assignment over exports object. |
| 889 | if (this.map.isDefine && exports === undefined) { |
| 890 | cjsModule = this.module; |
| 891 | if (cjsModule) { |
| 892 | exports = cjsModule.exports; |
| 893 | } else if (this.usingExports) { |
| 894 | //exports already set the defined value. |
| 895 | exports = this.exports; |
| 896 | } |
| 897 | } |
| 898 | |
| 899 | if (err) { |
| 900 | err.requireMap = this.map; |
| 901 | err.requireModules = this.map.isDefine ? [this.map.id] : null; |
| 902 | err.requireType = this.map.isDefine ? 'define' : 'require'; |
| 903 | return onError((this.error = err)); |
| 904 | } |
| 905 | |
| 906 | } else { |
| 907 | //Just a literal value |
| 908 | exports = factory; |
| 909 | } |
| 910 | |
| 911 | this.exports = exports; |
| 912 | |
| 913 | if (this.map.isDefine && !this.ignore) { |
| 914 | defined[id] = exports; |
| 915 | |
| 916 | if (req.onResourceLoad) { |
| 917 | var resLoadMaps = []; |
| 918 | each(this.depMaps, function (depMap) { |
| 919 | resLoadMaps.push(depMap.normalizedMap || depMap); |
| 920 | }); |
| 921 | req.onResourceLoad(context, this.map, resLoadMaps); |
| 922 | } |
| 923 | } |
| 924 | |
| 925 | //Clean up |
| 926 | cleanRegistry(id); |
| 927 | |
| 928 | this.defined = true; |
| 929 | } |
| 930 | |
| 931 | //Finished the define stage. Allow calling check again |
| 932 | //to allow define notifications below in the case of a |
| 933 | //cycle. |
| 934 | this.defining = false; |
| 935 | |
| 936 | if (this.defined && !this.defineEmitted) { |
| 937 | this.defineEmitted = true; |
| 938 | this.emit('defined', this.exports); |
| 939 | this.defineEmitComplete = true; |
| 940 | } |
| 941 | |
| 942 | } |
| 943 | }, |
| 944 | |
| 945 | callPlugin: function () { |
| 946 | var map = this.map, |
| 947 | id = map.id, |
| 948 | //Map already normalized the prefix. |
| 949 | pluginMap = makeModuleMap(map.prefix); |
| 950 | |
| 951 | //Mark this as a dependency for this plugin, so it |
| 952 | //can be traced for cycles. |
| 953 | this.depMaps.push(pluginMap); |
| 954 | |
| 955 | on(pluginMap, 'defined', bind(this, function (plugin) { |
| 956 | var load, normalizedMap, normalizedMod, |
| 957 | bundleId = getOwn(bundlesMap, this.map.id), |
| 958 | name = this.map.name, |
| 959 | parentName = this.map.parentMap ? this.map.parentMap.name : null, |
| 960 | localRequire = context.makeRequire(map.parentMap, { |
| 961 | enableBuildCallback: true |
| 962 | }); |
| 963 | |
| 964 | //If current map is not normalized, wait for that |
| 965 | //normalized name to load instead of continuing. |
| 966 | if (this.map.unnormalized) { |
| 967 | //Normalize the ID if the plugin allows it. |
| 968 | if (plugin.normalize) { |
| 969 | name = plugin.normalize(name, function (name) { |
| 970 | return normalize(name, parentName, true); |
| 971 | }) || ''; |
| 972 | } |
| 973 | |
| 974 | //prefix and name should already be normalized, no need |
| 975 | //for applying map config again either. |
| 976 | normalizedMap = makeModuleMap(map.prefix + '!' + name, |
| 977 | this.map.parentMap, |
| 978 | true); |
| 979 | on(normalizedMap, |
| 980 | 'defined', bind(this, function (value) { |
| 981 | this.map.normalizedMap = normalizedMap; |
| 982 | this.init([], function () { return value; }, null, { |
| 983 | enabled: true, |
| 984 | ignore: true |
| 985 | }); |
| 986 | })); |
| 987 | |
| 988 | normalizedMod = getOwn(registry, normalizedMap.id); |
| 989 | if (normalizedMod) { |
| 990 | //Mark this as a dependency for this plugin, so it |
| 991 | //can be traced for cycles. |
| 992 | this.depMaps.push(normalizedMap); |
| 993 | |
| 994 | if (this.events.error) { |
| 995 | normalizedMod.on('error', bind(this, function (err) { |
| 996 | this.emit('error', err); |
| 997 | })); |
| 998 | } |
| 999 | normalizedMod.enable(); |
| 1000 | } |
| 1001 | |
| 1002 | return; |
| 1003 | } |
| 1004 | |
| 1005 | //If a paths config, then just load that file instead to |
| 1006 | //resolve the plugin, as it is built into that paths layer. |
| 1007 | if (bundleId) { |
| 1008 | this.map.url = context.nameToUrl(bundleId); |
| 1009 | this.load(); |
| 1010 | return; |
| 1011 | } |
| 1012 | |
| 1013 | load = bind(this, function (value) { |
| 1014 | this.init([], function () { return value; }, null, { |
| 1015 | enabled: true |
| 1016 | }); |
| 1017 | }); |
| 1018 | |
| 1019 | load.error = bind(this, function (err) { |
| 1020 | this.inited = true; |
| 1021 | this.error = err; |
| 1022 | err.requireModules = [id]; |
| 1023 | |
| 1024 | //Remove temp unnormalized modules for this module, |
| 1025 | //since they will never be resolved otherwise now. |
| 1026 | eachProp(registry, function (mod) { |
| 1027 | if (mod.map.id.indexOf(id + '_unnormalized') === 0) { |
| 1028 | cleanRegistry(mod.map.id); |
| 1029 | } |
| 1030 | }); |
| 1031 | |
| 1032 | onError(err); |
| 1033 | }); |
| 1034 | |
| 1035 | //Allow plugins to load other code without having to know the |
| 1036 | //context or how to 'complete' the load. |
| 1037 | load.fromText = bind(this, function (text, textAlt) { |
| 1038 | /*jslint evil: true */ |
| 1039 | var moduleName = map.name, |
| 1040 | moduleMap = makeModuleMap(moduleName), |
| 1041 | hasInteractive = useInteractive; |
| 1042 | |
| 1043 | //As of 2.1.0, support just passing the text, to reinforce |
| 1044 | //fromText only being called once per resource. Still |
| 1045 | //support old style of passing moduleName but discard |
| 1046 | //that moduleName in favor of the internal ref. |
| 1047 | if (textAlt) { |
| 1048 | text = textAlt; |
| 1049 | } |
| 1050 | |
| 1051 | //Turn off interactive script matching for IE for any define |
| 1052 | //calls in the text, then turn it back on at the end. |
| 1053 | if (hasInteractive) { |
| 1054 | useInteractive = false; |
| 1055 | } |
| 1056 | |
| 1057 | //Prime the system by creating a module instance for |
| 1058 | //it. |
| 1059 | getModule(moduleMap); |
| 1060 | |
| 1061 | //Transfer any config to this other module. |
| 1062 | if (hasProp(config.config, id)) { |
| 1063 | config.config[moduleName] = config.config[id]; |
| 1064 | } |
| 1065 | |
| 1066 | try { |
| 1067 | req.exec(text); |
| 1068 | } catch (e) { |
| 1069 | return onError(makeError('fromtexteval', |
| 1070 | 'fromText eval for ' + id + |
| 1071 | ' failed: ' + e, |
| 1072 | e, |
| 1073 | [id])); |
| 1074 | } |
| 1075 | |
| 1076 | if (hasInteractive) { |
| 1077 | useInteractive = true; |
| 1078 | } |
| 1079 | |
| 1080 | //Mark this as a dependency for the plugin |
| 1081 | //resource |
| 1082 | this.depMaps.push(moduleMap); |
| 1083 | |
| 1084 | //Support anonymous modules. |
| 1085 | context.completeLoad(moduleName); |
| 1086 | |
| 1087 | //Bind the value of that module to the value for this |
| 1088 | //resource ID. |
| 1089 | localRequire([moduleName], load); |
| 1090 | }); |
| 1091 | |
| 1092 | //Use parentName here since the plugin's name is not reliable, |
| 1093 | //could be some weird string with no path that actually wants to |
| 1094 | //reference the parentName's path. |
| 1095 | plugin.load(map.name, localRequire, load, config); |
| 1096 | })); |
| 1097 | |
| 1098 | context.enable(pluginMap, this); |
| 1099 | this.pluginMaps[pluginMap.id] = pluginMap; |
| 1100 | }, |
| 1101 | |
| 1102 | enable: function () { |
| 1103 | enabledRegistry[this.map.id] = this; |
| 1104 | this.enabled = true; |
| 1105 | |
| 1106 | //Set flag mentioning that the module is enabling, |
| 1107 | //so that immediate calls to the defined callbacks |
| 1108 | //for dependencies do not trigger inadvertent load |
| 1109 | //with the depCount still being zero. |
| 1110 | this.enabling = true; |
| 1111 | |
| 1112 | //Enable each dependency |
| 1113 | each(this.depMaps, bind(this, function (depMap, i) { |
| 1114 | var id, mod, handler; |
| 1115 | |
| 1116 | if (typeof depMap === 'string') { |
| 1117 | //Dependency needs to be converted to a depMap |
| 1118 | //and wired up to this module. |
| 1119 | depMap = makeModuleMap(depMap, |
| 1120 | (this.map.isDefine ? this.map : this.map.parentMap), |
| 1121 | false, |
| 1122 | !this.skipMap); |
| 1123 | this.depMaps[i] = depMap; |
| 1124 | |
| 1125 | handler = getOwn(handlers, depMap.id); |
| 1126 | |
| 1127 | if (handler) { |
| 1128 | this.depExports[i] = handler(this); |
| 1129 | return; |
| 1130 | } |
| 1131 | |
| 1132 | this.depCount += 1; |
| 1133 | |
| 1134 | on(depMap, 'defined', bind(this, function (depExports) { |
| 1135 | if (this.undefed) { |
| 1136 | return; |
| 1137 | } |
| 1138 | this.defineDep(i, depExports); |
| 1139 | this.check(); |
| 1140 | })); |
| 1141 | |
| 1142 | if (this.errback) { |
| 1143 | on(depMap, 'error', bind(this, this.errback)); |
| 1144 | } else if (this.events.error) { |
| 1145 | // No direct errback on this module, but something |
| 1146 | // else is listening for errors, so be sure to |
| 1147 | // propagate the error correctly. |
| 1148 | on(depMap, 'error', bind(this, function(err) { |
| 1149 | this.emit('error', err); |
| 1150 | })); |
| 1151 | } |
| 1152 | } |
| 1153 | |
| 1154 | id = depMap.id; |
| 1155 | mod = registry[id]; |
| 1156 | |
| 1157 | //Skip special modules like 'require', 'exports', 'module' |
| 1158 | //Also, don't call enable if it is already enabled, |
| 1159 | //important in circular dependency cases. |
| 1160 | if (!hasProp(handlers, id) && mod && !mod.enabled) { |
| 1161 | context.enable(depMap, this); |
| 1162 | } |
| 1163 | })); |
| 1164 | |
| 1165 | //Enable each plugin that is used in |
| 1166 | //a dependency |
| 1167 | eachProp(this.pluginMaps, bind(this, function (pluginMap) { |
| 1168 | var mod = getOwn(registry, pluginMap.id); |
| 1169 | if (mod && !mod.enabled) { |
| 1170 | context.enable(pluginMap, this); |
| 1171 | } |
| 1172 | })); |
| 1173 | |
| 1174 | this.enabling = false; |
| 1175 | |
| 1176 | this.check(); |
| 1177 | }, |
| 1178 | |
| 1179 | on: function (name, cb) { |
| 1180 | var cbs = this.events[name]; |
| 1181 | if (!cbs) { |
| 1182 | cbs = this.events[name] = []; |
| 1183 | } |
| 1184 | cbs.push(cb); |
| 1185 | }, |
| 1186 | |
| 1187 | emit: function (name, evt) { |
| 1188 | each(this.events[name], function (cb) { |
| 1189 | cb(evt); |
| 1190 | }); |
| 1191 | if (name === 'error') { |
| 1192 | //Now that the error handler was triggered, remove |
| 1193 | //the listeners, since this broken Module instance |
| 1194 | //can stay around for a while in the registry. |
| 1195 | delete this.events[name]; |
| 1196 | } |
| 1197 | } |
| 1198 | }; |
| 1199 | |
| 1200 | function callGetModule(args) { |
| 1201 | //Skip modules already defined. |
| 1202 | if (!hasProp(defined, args[0])) { |
| 1203 | getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]); |
| 1204 | } |
| 1205 | } |
| 1206 | |
| 1207 | function removeListener(node, func, name, ieName) { |
| 1208 | //Favor detachEvent because of IE9 |
| 1209 | //issue, see attachEvent/addEventListener comment elsewhere |
| 1210 | //in this file. |
| 1211 | if (node.detachEvent && !isOpera) { |
| 1212 | //Probably IE. If not it will throw an error, which will be |
| 1213 | //useful to know. |
| 1214 | if (ieName) { |
| 1215 | node.detachEvent(ieName, func); |
| 1216 | } |
| 1217 | } else { |
| 1218 | node.removeEventListener(name, func, false); |
| 1219 | } |
| 1220 | } |
| 1221 | |
| 1222 | /** |
| 1223 | * Given an event from a script node, get the requirejs info from it, |
| 1224 | * and then removes the event listeners on the node. |
| 1225 | * @param {Event} evt |
| 1226 | * @returns {Object} |
| 1227 | */ |
| 1228 | function getScriptData(evt) { |
| 1229 | //Using currentTarget instead of target for Firefox 2.0's sake. Not |
| 1230 | //all old browsers will be supported, but this one was easy enough |
| 1231 | //to support and still makes sense. |
| 1232 | var node = evt.currentTarget || evt.srcElement; |
| 1233 | |
| 1234 | //Remove the listeners once here. |
| 1235 | removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange'); |
| 1236 | removeListener(node, context.onScriptError, 'error'); |
| 1237 | |
| 1238 | return { |
| 1239 | node: node, |
| 1240 | id: node && node.getAttribute('data-requiremodule') |
| 1241 | }; |
| 1242 | } |
| 1243 | |
| 1244 | function intakeDefines() { |
| 1245 | var args; |
| 1246 | |
| 1247 | //Any defined modules in the global queue, intake them now. |
| 1248 | takeGlobalQueue(); |
| 1249 | |
| 1250 | //Make sure any remaining defQueue items get properly processed. |
| 1251 | while (defQueue.length) { |
| 1252 | args = defQueue.shift(); |
| 1253 | if (args[0] === null) { |
| 1254 | return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + |
| 1255 | args[args.length - 1])); |
| 1256 | } else { |
| 1257 | //args are id, deps, factory. Should be normalized by the |
| 1258 | //define() function. |
| 1259 | callGetModule(args); |
| 1260 | } |
| 1261 | } |
| 1262 | context.defQueueMap = {}; |
| 1263 | } |
| 1264 | |
| 1265 | context = { |
| 1266 | config: config, |
| 1267 | contextName: contextName, |
| 1268 | registry: registry, |
| 1269 | defined: defined, |
| 1270 | urlFetched: urlFetched, |
| 1271 | defQueue: defQueue, |
| 1272 | defQueueMap: {}, |
| 1273 | Module: Module, |
| 1274 | makeModuleMap: makeModuleMap, |
| 1275 | nextTick: req.nextTick, |
| 1276 | onError: onError, |
| 1277 | |
| 1278 | /** |
| 1279 | * Set a configuration for the context. |
| 1280 | * @param {Object} cfg config object to integrate. |
| 1281 | */ |
| 1282 | configure: function (cfg) { |
| 1283 | //Make sure the baseUrl ends in a slash. |
| 1284 | if (cfg.baseUrl) { |
| 1285 | if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') { |
| 1286 | cfg.baseUrl += '/'; |
| 1287 | } |
| 1288 | } |
| 1289 | |
| 1290 | // Convert old style urlArgs string to a function. |
| 1291 | if (typeof cfg.urlArgs === 'string') { |
| 1292 | var urlArgs = cfg.urlArgs; |
| 1293 | cfg.urlArgs = function(id, url) { |
| 1294 | return (url.indexOf('?') === -1 ? '?' : '&') + urlArgs; |
| 1295 | }; |
| 1296 | } |
| 1297 | |
| 1298 | //Save off the paths since they require special processing, |
| 1299 | //they are additive. |
| 1300 | var shim = config.shim, |
| 1301 | objs = { |
| 1302 | paths: true, |
| 1303 | bundles: true, |
| 1304 | config: true, |
| 1305 | map: true |
| 1306 | }; |
| 1307 | |
| 1308 | eachProp(cfg, function (value, prop) { |
| 1309 | if (objs[prop]) { |
| 1310 | if (!config[prop]) { |
| 1311 | config[prop] = {}; |
| 1312 | } |
| 1313 | mixin(config[prop], value, true, true); |
| 1314 | } else { |
| 1315 | config[prop] = value; |
| 1316 | } |
| 1317 | }); |
| 1318 | |
| 1319 | //Reverse map the bundles |
| 1320 | if (cfg.bundles) { |
| 1321 | eachProp(cfg.bundles, function (value, prop) { |
| 1322 | each(value, function (v) { |
| 1323 | if (v !== prop) { |
| 1324 | bundlesMap[v] = prop; |
| 1325 | } |
| 1326 | }); |
| 1327 | }); |
| 1328 | } |
| 1329 | |
| 1330 | //Merge shim |
| 1331 | if (cfg.shim) { |
| 1332 | eachProp(cfg.shim, function (value, id) { |
| 1333 | //Normalize the structure |
| 1334 | if (isArray(value)) { |
| 1335 | value = { |
| 1336 | deps: value |
| 1337 | }; |
| 1338 | } |
| 1339 | if ((value.exports || value.init) && !value.exportsFn) { |
| 1340 | value.exportsFn = context.makeShimExports(value); |
| 1341 | } |
| 1342 | shim[id] = value; |
| 1343 | }); |
| 1344 | config.shim = shim; |
| 1345 | } |
| 1346 | |
| 1347 | //Adjust packages if necessary. |
| 1348 | if (cfg.packages) { |
| 1349 | each(cfg.packages, function (pkgObj) { |
| 1350 | var location, name; |
| 1351 | |
| 1352 | pkgObj = typeof pkgObj === 'string' ? {name: pkgObj} : pkgObj; |
| 1353 | |
| 1354 | name = pkgObj.name; |
| 1355 | location = pkgObj.location; |
| 1356 | if (location) { |
| 1357 | config.paths[name] = pkgObj.location; |
| 1358 | } |
| 1359 | |
| 1360 | //Save pointer to main module ID for pkg name. |
| 1361 | //Remove leading dot in main, so main paths are normalized, |
| 1362 | //and remove any trailing .js, since different package |
| 1363 | //envs have different conventions: some use a module name, |
| 1364 | //some use a file name. |
| 1365 | config.pkgs[name] = pkgObj.name + '/' + (pkgObj.main || 'main') |
| 1366 | .replace(currDirRegExp, '') |
| 1367 | .replace(jsSuffixRegExp, ''); |
| 1368 | }); |
| 1369 | } |
| 1370 | |
| 1371 | //If there are any "waiting to execute" modules in the registry, |
| 1372 | //update the maps for them, since their info, like URLs to load, |
| 1373 | //may have changed. |
| 1374 | eachProp(registry, function (mod, id) { |
| 1375 | //If module already has init called, since it is too |
| 1376 | //late to modify them, and ignore unnormalized ones |
| 1377 | //since they are transient. |
| 1378 | if (!mod.inited && !mod.map.unnormalized) { |
| 1379 | mod.map = makeModuleMap(id, null, true); |
| 1380 | } |
| 1381 | }); |
| 1382 | |
| 1383 | //If a deps array or a config callback is specified, then call |
| 1384 | //require with those args. This is useful when require is defined as a |
| 1385 | //config object before require.js is loaded. |
| 1386 | if (cfg.deps || cfg.callback) { |
| 1387 | context.require(cfg.deps || [], cfg.callback); |
| 1388 | } |
| 1389 | }, |
| 1390 | |
| 1391 | makeShimExports: function (value) { |
| 1392 | function fn() { |
| 1393 | var ret; |
| 1394 | if (value.init) { |
| 1395 | ret = value.init.apply(global, arguments); |
| 1396 | } |
| 1397 | return ret || (value.exports && getGlobal(value.exports)); |
| 1398 | } |
| 1399 | return fn; |
| 1400 | }, |
| 1401 | |
| 1402 | makeRequire: function (relMap, options) { |
| 1403 | options = options || {}; |
| 1404 | |
| 1405 | function localRequire(deps, callback, errback) { |
| 1406 | var id, map, requireMod; |
| 1407 | |
| 1408 | if (options.enableBuildCallback && callback && isFunction(callback)) { |
| 1409 | callback.__requireJsBuild = true; |
| 1410 | } |
| 1411 | |
| 1412 | if (typeof deps === 'string') { |
| 1413 | if (isFunction(callback)) { |
| 1414 | //Invalid call |
| 1415 | return onError(makeError('requireargs', 'Invalid require call'), errback); |
| 1416 | } |
| 1417 | |
| 1418 | //If require|exports|module are requested, get the |
| 1419 | //value for them from the special handlers. Caveat: |
| 1420 | //this only works while module is being defined. |
| 1421 | if (relMap && hasProp(handlers, deps)) { |
| 1422 | return handlers[deps](registry[relMap.id]); |
| 1423 | } |
| 1424 | |
| 1425 | //Synchronous access to one module. If require.get is |
| 1426 | //available (as in the Node adapter), prefer that. |
| 1427 | if (req.get) { |
| 1428 | return req.get(context, deps, relMap, localRequire); |
| 1429 | } |
| 1430 | |
| 1431 | //Normalize module name, if it contains . or .. |
| 1432 | map = makeModuleMap(deps, relMap, false, true); |
| 1433 | id = map.id; |
| 1434 | |
| 1435 | if (!hasProp(defined, id)) { |
| 1436 | return onError(makeError('notloaded', 'Module name "' + |
| 1437 | id + |
| 1438 | '" has not been loaded yet for context: ' + |
| 1439 | contextName + |
| 1440 | (relMap ? '' : '. Use require([])'))); |
| 1441 | } |
| 1442 | return defined[id]; |
| 1443 | } |
| 1444 | |
| 1445 | //Grab defines waiting in the global queue. |
| 1446 | intakeDefines(); |
| 1447 | |
| 1448 | //Mark all the dependencies as needing to be loaded. |
| 1449 | context.nextTick(function () { |
| 1450 | //Some defines could have been added since the |
| 1451 | //require call, collect them. |
| 1452 | intakeDefines(); |
| 1453 | |
| 1454 | requireMod = getModule(makeModuleMap(null, relMap)); |
| 1455 | |
| 1456 | //Store if map config should be applied to this require |
| 1457 | //call for dependencies. |
| 1458 | requireMod.skipMap = options.skipMap; |
| 1459 | |
| 1460 | requireMod.init(deps, callback, errback, { |
| 1461 | enabled: true |
| 1462 | }); |
| 1463 | |
| 1464 | checkLoaded(); |
| 1465 | }); |
| 1466 | |
| 1467 | return localRequire; |
| 1468 | } |
| 1469 | |
| 1470 | mixin(localRequire, { |
| 1471 | isBrowser: isBrowser, |
| 1472 | |
| 1473 | /** |
| 1474 | * Converts a module name + .extension into an URL path. |
| 1475 | * *Requires* the use of a module name. It does not support using |
| 1476 | * plain URLs like nameToUrl. |
| 1477 | */ |
| 1478 | toUrl: function (moduleNamePlusExt) { |
| 1479 | var ext, |
| 1480 | index = moduleNamePlusExt.lastIndexOf('.'), |
| 1481 | segment = moduleNamePlusExt.split('/')[0], |
| 1482 | isRelative = segment === '.' || segment === '..'; |
| 1483 | |
| 1484 | //Have a file extension alias, and it is not the |
| 1485 | //dots from a relative path. |
| 1486 | if (index !== -1 && (!isRelative || index > 1)) { |
| 1487 | ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length); |
| 1488 | moduleNamePlusExt = moduleNamePlusExt.substring(0, index); |
| 1489 | } |
| 1490 | |
| 1491 | return context.nameToUrl(normalize(moduleNamePlusExt, |
| 1492 | relMap && relMap.id, true), ext, true); |
| 1493 | }, |
| 1494 | |
| 1495 | defined: function (id) { |
| 1496 | return hasProp(defined, makeModuleMap(id, relMap, false, true).id); |
| 1497 | }, |
| 1498 | |
| 1499 | specified: function (id) { |
| 1500 | id = makeModuleMap(id, relMap, false, true).id; |
| 1501 | return hasProp(defined, id) || hasProp(registry, id); |
| 1502 | } |
| 1503 | }); |
| 1504 | |
| 1505 | //Only allow undef on top level require calls |
| 1506 | if (!relMap) { |
| 1507 | localRequire.undef = function (id) { |
| 1508 | //Bind any waiting define() calls to this context, |
| 1509 | //fix for #408 |
| 1510 | takeGlobalQueue(); |
| 1511 | |
| 1512 | var map = makeModuleMap(id, relMap, true), |
| 1513 | mod = getOwn(registry, id); |
| 1514 | |
| 1515 | mod.undefed = true; |
| 1516 | removeScript(id); |
| 1517 | |
| 1518 | delete defined[id]; |
| 1519 | delete urlFetched[map.url]; |
| 1520 | delete undefEvents[id]; |
| 1521 | |
| 1522 | //Clean queued defines too. Go backwards |
| 1523 | //in array so that the splices do not |
| 1524 | //mess up the iteration. |
| 1525 | eachReverse(defQueue, function(args, i) { |
| 1526 | if (args[0] === id) { |
| 1527 | defQueue.splice(i, 1); |
| 1528 | } |
| 1529 | }); |
| 1530 | delete context.defQueueMap[id]; |
| 1531 | |
| 1532 | if (mod) { |
| 1533 | //Hold on to listeners in case the |
| 1534 | //module will be attempted to be reloaded |
| 1535 | //using a different config. |
| 1536 | if (mod.events.defined) { |
| 1537 | undefEvents[id] = mod.events; |
| 1538 | } |
| 1539 | |
| 1540 | cleanRegistry(id); |
| 1541 | } |
| 1542 | }; |
| 1543 | } |
| 1544 | |
| 1545 | return localRequire; |
| 1546 | }, |
| 1547 | |
| 1548 | /** |
| 1549 | * Called to enable a module if it is still in the registry |
| 1550 | * awaiting enablement. A second arg, parent, the parent module, |
| 1551 | * is passed in for context, when this method is overridden by |
| 1552 | * the optimizer. Not shown here to keep code compact. |
| 1553 | */ |
| 1554 | enable: function (depMap) { |
| 1555 | var mod = getOwn(registry, depMap.id); |
| 1556 | if (mod) { |
| 1557 | getModule(depMap).enable(); |
| 1558 | } |
| 1559 | }, |
| 1560 | |
| 1561 | /** |
| 1562 | * Internal method used by environment adapters to complete a load event. |
| 1563 | * A load event could be a script load or just a load pass from a synchronous |
| 1564 | * load call. |
| 1565 | * @param {String} moduleName the name of the module to potentially complete. |
| 1566 | */ |
| 1567 | completeLoad: function (moduleName) { |
| 1568 | var found, args, mod, |
| 1569 | shim = getOwn(config.shim, moduleName) || {}, |
| 1570 | shExports = shim.exports; |
| 1571 | |
| 1572 | takeGlobalQueue(); |
| 1573 | |
| 1574 | while (defQueue.length) { |
| 1575 | args = defQueue.shift(); |
| 1576 | if (args[0] === null) { |
| 1577 | args[0] = moduleName; |
| 1578 | //If already found an anonymous module and bound it |
| 1579 | //to this name, then this is some other anon module |
| 1580 | //waiting for its completeLoad to fire. |
| 1581 | if (found) { |
| 1582 | break; |
| 1583 | } |
| 1584 | found = true; |
| 1585 | } else if (args[0] === moduleName) { |
| 1586 | //Found matching define call for this script! |
| 1587 | found = true; |
| 1588 | } |
| 1589 | |
| 1590 | callGetModule(args); |
| 1591 | } |
| 1592 | context.defQueueMap = {}; |
| 1593 | |
| 1594 | //Do this after the cycle of callGetModule in case the result |
| 1595 | //of those calls/init calls changes the registry. |
| 1596 | mod = getOwn(registry, moduleName); |
| 1597 | |
| 1598 | if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) { |
| 1599 | if (config.enforceDefine && (!shExports || !getGlobal(shExports))) { |
| 1600 | if (hasPathFallback(moduleName)) { |
| 1601 | return; |
| 1602 | } else { |
| 1603 | return onError(makeError('nodefine', |
| 1604 | 'No define call for ' + moduleName, |
| 1605 | null, |
| 1606 | [moduleName])); |
| 1607 | } |
| 1608 | } else { |
| 1609 | //A script that does not call define(), so just simulate |
| 1610 | //the call for it. |
| 1611 | callGetModule([moduleName, (shim.deps || []), shim.exportsFn]); |
| 1612 | } |
| 1613 | } |
| 1614 | |
| 1615 | checkLoaded(); |
| 1616 | }, |
| 1617 | |
| 1618 | /** |
| 1619 | * Converts a module name to a file path. Supports cases where |
| 1620 | * moduleName may actually be just an URL. |
| 1621 | * Note that it **does not** call normalize on the moduleName, |
| 1622 | * it is assumed to have already been normalized. This is an |
| 1623 | * internal API, not a public one. Use toUrl for the public API. |
| 1624 | */ |
| 1625 | nameToUrl: function (moduleName, ext, skipExt) { |
| 1626 | var paths, syms, i, parentModule, url, |
| 1627 | parentPath, bundleId, |
| 1628 | pkgMain = getOwn(config.pkgs, moduleName); |
| 1629 | |
| 1630 | if (pkgMain) { |
| 1631 | moduleName = pkgMain; |
| 1632 | } |
| 1633 | |
| 1634 | bundleId = getOwn(bundlesMap, moduleName); |
| 1635 | |
| 1636 | if (bundleId) { |
| 1637 | return context.nameToUrl(bundleId, ext, skipExt); |
| 1638 | } |
| 1639 | |
| 1640 | //If a colon is in the URL, it indicates a protocol is used and it is just |
| 1641 | //an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?) |
| 1642 | //or ends with .js, then assume the user meant to use an url and not a module id. |
| 1643 | //The slash is important for protocol-less URLs as well as full paths. |
| 1644 | if (req.jsExtRegExp.test(moduleName)) { |
| 1645 | //Just a plain path, not module name lookup, so just return it. |
| 1646 | //Add extension if it is included. This is a bit wonky, only non-.js things pass |
| 1647 | //an extension, this method probably needs to be reworked. |
| 1648 | url = moduleName + (ext || ''); |
| 1649 | } else { |
| 1650 | //A module that needs to be converted to a path. |
| 1651 | paths = config.paths; |
| 1652 | |
| 1653 | syms = moduleName.split('/'); |
| 1654 | //For each module name segment, see if there is a path |
| 1655 | //registered for it. Start with most specific name |
| 1656 | //and work up from it. |
| 1657 | for (i = syms.length; i > 0; i -= 1) { |
| 1658 | parentModule = syms.slice(0, i).join('/'); |
| 1659 | |
| 1660 | parentPath = getOwn(paths, parentModule); |
| 1661 | if (parentPath) { |
| 1662 | //If an array, it means there are a few choices, |
| 1663 | //Choose the one that is desired |
| 1664 | if (isArray(parentPath)) { |
| 1665 | parentPath = parentPath[0]; |
| 1666 | } |
| 1667 | syms.splice(0, i, parentPath); |
| 1668 | break; |
| 1669 | } |
| 1670 | } |
| 1671 | |
| 1672 | //Join the path parts together, then figure out if baseUrl is needed. |
| 1673 | url = syms.join('/'); |
| 1674 | url += (ext || (/^data\:|^blob\:|\?/.test(url) || skipExt ? '' : '.js')); |
| 1675 | url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url; |
| 1676 | } |
| 1677 | |
| 1678 | return config.urlArgs && !/^blob\:/.test(url) ? |
| 1679 | url + config.urlArgs(moduleName, url) : url; |
| 1680 | }, |
| 1681 | |
| 1682 | //Delegates to req.load. Broken out as a separate function to |
| 1683 | //allow overriding in the optimizer. |
| 1684 | load: function (id, url) { |
| 1685 | req.load(context, id, url); |
| 1686 | }, |
| 1687 | |
| 1688 | /** |
| 1689 | * Executes a module callback function. Broken out as a separate function |
| 1690 | * solely to allow the build system to sequence the files in the built |
| 1691 | * layer in the right sequence. |
| 1692 | * |
| 1693 | * @private |
| 1694 | */ |
| 1695 | execCb: function (name, callback, args, exports) { |
| 1696 | return callback.apply(exports, args); |
| 1697 | }, |
| 1698 | |
| 1699 | /** |
| 1700 | * callback for script loads, used to check status of loading. |
| 1701 | * |
| 1702 | * @param {Event} evt the event from the browser for the script |
| 1703 | * that was loaded. |
| 1704 | */ |
| 1705 | onScriptLoad: function (evt) { |
| 1706 | //Using currentTarget instead of target for Firefox 2.0's sake. Not |
| 1707 | //all old browsers will be supported, but this one was easy enough |
| 1708 | //to support and still makes sense. |
| 1709 | if (evt.type === 'load' || |
| 1710 | (readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) { |
| 1711 | //Reset interactive script so a script node is not held onto for |
| 1712 | //to long. |
| 1713 | interactiveScript = null; |
| 1714 | |
| 1715 | //Pull out the name of the module and the context. |
| 1716 | var data = getScriptData(evt); |
| 1717 | context.completeLoad(data.id); |
| 1718 | } |
| 1719 | }, |
| 1720 | |
| 1721 | /** |
| 1722 | * Callback for script errors. |
| 1723 | */ |
| 1724 | onScriptError: function (evt) { |
| 1725 | var data = getScriptData(evt); |
| 1726 | if (!hasPathFallback(data.id)) { |
| 1727 | var parents = []; |
| 1728 | eachProp(registry, function(value, key) { |
| 1729 | if (key.indexOf('_@r') !== 0) { |
| 1730 | each(value.depMaps, function(depMap) { |
| 1731 | if (depMap.id === data.id) { |
| 1732 | parents.push(key); |
| 1733 | return true; |
| 1734 | } |
| 1735 | }); |
| 1736 | } |
| 1737 | }); |
| 1738 | return onError(makeError('scripterror', 'Script error for "' + data.id + |
| 1739 | (parents.length ? |
| 1740 | '", needed by: ' + parents.join(', ') : |
| 1741 | '"'), evt, [data.id])); |
| 1742 | } |
| 1743 | } |
| 1744 | }; |
| 1745 | |
| 1746 | context.require = context.makeRequire(); |
| 1747 | return context; |
| 1748 | } |
| 1749 | |
| 1750 | /** |
| 1751 | * Main entry point. |
| 1752 | * |
| 1753 | * If the only argument to require is a string, then the module that |
| 1754 | * is represented by that string is fetched for the appropriate context. |
| 1755 | * |
| 1756 | * If the first argument is an array, then it will be treated as an array |
| 1757 | * of dependency string names to fetch. An optional function callback can |
| 1758 | * be specified to execute when all of those dependencies are available. |
| 1759 | * |
| 1760 | * Make a local req variable to help Caja compliance (it assumes things |
| 1761 | * on a require that are not standardized), and to give a short |
| 1762 | * name for minification/local scope use. |
| 1763 | */ |
| 1764 | req = requirejs = function (deps, callback, errback, optional) { |
| 1765 | |
| 1766 | //Find the right context, use default |
| 1767 | var context, config, |
| 1768 | contextName = defContextName; |
| 1769 | |
| 1770 | // Determine if have config object in the call. |
| 1771 | if (!isArray(deps) && typeof deps !== 'string') { |
| 1772 | // deps is a config object |
| 1773 | config = deps; |
| 1774 | if (isArray(callback)) { |
| 1775 | // Adjust args if there are dependencies |
| 1776 | deps = callback; |
| 1777 | callback = errback; |
| 1778 | errback = optional; |
| 1779 | } else { |
| 1780 | deps = []; |
| 1781 | } |
| 1782 | } |
| 1783 | |
| 1784 | if (config && config.context) { |
| 1785 | contextName = config.context; |
| 1786 | } |
| 1787 | |
| 1788 | context = getOwn(contexts, contextName); |
| 1789 | if (!context) { |
| 1790 | context = contexts[contextName] = req.s.newContext(contextName); |
| 1791 | } |
| 1792 | |
| 1793 | if (config) { |
| 1794 | context.configure(config); |
| 1795 | } |
| 1796 | |
| 1797 | return context.require(deps, callback, errback); |
| 1798 | }; |
| 1799 | |
| 1800 | /** |
| 1801 | * Support require.config() to make it easier to cooperate with other |
| 1802 | * AMD loaders on globally agreed names. |
| 1803 | */ |
| 1804 | req.config = function (config) { |
| 1805 | return req(config); |
| 1806 | }; |
| 1807 | |
| 1808 | /** |
| 1809 | * Execute something after the current tick |
| 1810 | * of the event loop. Override for other envs |
| 1811 | * that have a better solution than setTimeout. |
| 1812 | * @param {Function} fn function to execute later. |
| 1813 | */ |
| 1814 | req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) { |
| 1815 | setTimeout(fn, 4); |
| 1816 | } : function (fn) { fn(); }; |
| 1817 | |
| 1818 | /** |
| 1819 | * Export require as a global, but only if it does not already exist. |
| 1820 | */ |
| 1821 | if (!require) { |
| 1822 | require = req; |
| 1823 | } |
| 1824 | |
| 1825 | req.version = version; |
| 1826 | |
| 1827 | //Used to filter out dependencies that are already paths. |
| 1828 | req.jsExtRegExp = /^\/|:|\?|\.js$/; |
| 1829 | req.isBrowser = isBrowser; |
| 1830 | s = req.s = { |
| 1831 | contexts: contexts, |
| 1832 | newContext: newContext |
| 1833 | }; |
| 1834 | |
| 1835 | //Create default context. |
| 1836 | req({}); |
| 1837 | |
| 1838 | //Exports some context-sensitive methods on global require. |
| 1839 | each([ |
| 1840 | 'toUrl', |
| 1841 | 'undef', |
| 1842 | 'defined', |
| 1843 | 'specified' |
| 1844 | ], function (prop) { |
| 1845 | //Reference from contexts instead of early binding to default context, |
| 1846 | //so that during builds, the latest instance of the default context |
| 1847 | //with its config gets used. |
| 1848 | req[prop] = function () { |
| 1849 | var ctx = contexts[defContextName]; |
| 1850 | return ctx.require[prop].apply(ctx, arguments); |
| 1851 | }; |
| 1852 | }); |
| 1853 | |
| 1854 | if (isBrowser) { |
| 1855 | head = s.head = document.getElementsByTagName('head')[0]; |
| 1856 | //If BASE tag is in play, using appendChild is a problem for IE6. |
| 1857 | //When that browser dies, this can be removed. Details in this jQuery bug: |
| 1858 | //http://dev.jquery.com/ticket/2709 |
| 1859 | baseElement = document.getElementsByTagName('base')[0]; |
| 1860 | if (baseElement) { |
| 1861 | head = s.head = baseElement.parentNode; |
| 1862 | } |
| 1863 | } |
| 1864 | |
| 1865 | /** |
| 1866 | * Any errors that require explicitly generates will be passed to this |
| 1867 | * function. Intercept/override it if you want custom error handling. |
| 1868 | * @param {Error} err the error object. |
| 1869 | */ |
| 1870 | req.onError = defaultOnError; |
| 1871 | |
| 1872 | /** |
| 1873 | * Creates the node for the load command. Only used in browser envs. |
| 1874 | */ |
| 1875 | req.createNode = function (config, moduleName, url) { |
| 1876 | var node = config.xhtml ? |
| 1877 | document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') : |
| 1878 | document.createElement('script'); |
| 1879 | node.type = config.scriptType || 'text/javascript'; |
| 1880 | node.charset = 'utf-8'; |
| 1881 | node.async = true; |
| 1882 | return node; |
| 1883 | }; |
| 1884 | |
| 1885 | /** |
| 1886 | * Does the request to load a module for the browser case. |
| 1887 | * Make this a separate function to allow other environments |
| 1888 | * to override it. |
| 1889 | * |
| 1890 | * @param {Object} context the require context to find state. |
| 1891 | * @param {String} moduleName the name of the module. |
| 1892 | * @param {Object} url the URL to the module. |
| 1893 | */ |
| 1894 | req.load = function (context, moduleName, url) { |
| 1895 | var config = (context && context.config) || {}, |
| 1896 | node; |
| 1897 | if (isBrowser) { |
| 1898 | //In the browser so use a script tag |
| 1899 | node = req.createNode(config, moduleName, url); |
| 1900 | |
| 1901 | node.setAttribute('data-requirecontext', context.contextName); |
| 1902 | node.setAttribute('data-requiremodule', moduleName); |
| 1903 | |
| 1904 | //Set up load listener. Test attachEvent first because IE9 has |
| 1905 | //a subtle issue in its addEventListener and script onload firings |
| 1906 | //that do not match the behavior of all other browsers with |
| 1907 | //addEventListener support, which fire the onload event for a |
| 1908 | //script right after the script execution. See: |
| 1909 | //https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution |
| 1910 | //UNFORTUNATELY Opera implements attachEvent but does not follow the script |
| 1911 | //script execution mode. |
| 1912 | if (node.attachEvent && |
| 1913 | //Check if node.attachEvent is artificially added by custom script or |
| 1914 | //natively supported by browser |
| 1915 | //read https://github.com/requirejs/requirejs/issues/187 |
| 1916 | //if we can NOT find [native code] then it must NOT natively supported. |
| 1917 | //in IE8, node.attachEvent does not have toString() |
| 1918 | //Note the test for "[native code" with no closing brace, see: |
| 1919 | //https://github.com/requirejs/requirejs/issues/273 |
| 1920 | !(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) && |
| 1921 | !isOpera) { |
| 1922 | //Probably IE. IE (at least 6-8) do not fire |
| 1923 | //script onload right after executing the script, so |
| 1924 | //we cannot tie the anonymous define call to a name. |
| 1925 | //However, IE reports the script as being in 'interactive' |
| 1926 | //readyState at the time of the define call. |
| 1927 | useInteractive = true; |
| 1928 | |
| 1929 | node.attachEvent('onreadystatechange', context.onScriptLoad); |
| 1930 | //It would be great to add an error handler here to catch |
| 1931 | //404s in IE9+. However, onreadystatechange will fire before |
| 1932 | //the error handler, so that does not help. If addEventListener |
| 1933 | //is used, then IE will fire error before load, but we cannot |
| 1934 | //use that pathway given the connect.microsoft.com issue |
| 1935 | //mentioned above about not doing the 'script execute, |
| 1936 | //then fire the script load event listener before execute |
| 1937 | //next script' that other browsers do. |
| 1938 | //Best hope: IE10 fixes the issues, |
| 1939 | //and then destroys all installs of IE 6-9. |
| 1940 | //node.attachEvent('onerror', context.onScriptError); |
| 1941 | } else { |
| 1942 | node.addEventListener('load', context.onScriptLoad, false); |
| 1943 | node.addEventListener('error', context.onScriptError, false); |
| 1944 | } |
| 1945 | node.src = url; |
| 1946 | |
| 1947 | //Calling onNodeCreated after all properties on the node have been |
| 1948 | //set, but before it is placed in the DOM. |
| 1949 | if (config.onNodeCreated) { |
| 1950 | config.onNodeCreated(node, config, moduleName, url); |
| 1951 | } |
| 1952 | |
| 1953 | //For some cache cases in IE 6-8, the script executes before the end |
| 1954 | //of the appendChild execution, so to tie an anonymous define |
| 1955 | //call to the module name (which is stored on the node), hold on |
| 1956 | //to a reference to this node, but clear after the DOM insertion. |
| 1957 | currentlyAddingScript = node; |
| 1958 | if (baseElement) { |
| 1959 | head.insertBefore(node, baseElement); |
| 1960 | } else { |
| 1961 | head.appendChild(node); |
| 1962 | } |
| 1963 | currentlyAddingScript = null; |
| 1964 | |
| 1965 | return node; |
| 1966 | } else if (isWebWorker) { |
| 1967 | try { |
| 1968 | //In a web worker, use importScripts. This is not a very |
| 1969 | //efficient use of importScripts, importScripts will block until |
| 1970 | //its script is downloaded and evaluated. However, if web workers |
| 1971 | //are in play, the expectation is that a build has been done so |
| 1972 | //that only one script needs to be loaded anyway. This may need |
| 1973 | //to be reevaluated if other use cases become common. |
| 1974 | |
| 1975 | // Post a task to the event loop to work around a bug in WebKit |
| 1976 | // where the worker gets garbage-collected after calling |
| 1977 | // importScripts(): https://webkit.org/b/153317 |
| 1978 | setTimeout(function() {}, 0); |
| 1979 | importScripts(url); |
| 1980 | |
| 1981 | //Account for anonymous modules |
| 1982 | context.completeLoad(moduleName); |
| 1983 | } catch (e) { |
| 1984 | context.onError(makeError('importscripts', |
| 1985 | 'importScripts failed for ' + |
| 1986 | moduleName + ' at ' + url, |
| 1987 | e, |
| 1988 | [moduleName])); |
| 1989 | } |
| 1990 | } |
| 1991 | }; |
| 1992 | |
| 1993 | function getInteractiveScript() { |
| 1994 | if (interactiveScript && interactiveScript.readyState === 'interactive') { |
| 1995 | return interactiveScript; |
| 1996 | } |
| 1997 | |
| 1998 | eachReverse(scripts(), function (script) { |
| 1999 | if (script.readyState === 'interactive') { |
| 2000 | return (interactiveScript = script); |
| 2001 | } |
| 2002 | }); |
| 2003 | return interactiveScript; |
| 2004 | } |
| 2005 | |
| 2006 | //Look for a data-main script attribute, which could also adjust the baseUrl. |
| 2007 | if (isBrowser && !cfg.skipDataMain) { |
| 2008 | //Figure out baseUrl. Get it from the script tag with require.js in it. |
| 2009 | eachReverse(scripts(), function (script) { |
| 2010 | //Set the 'head' where we can append children by |
| 2011 | //using the script's parent. |
| 2012 | if (!head) { |
| 2013 | head = script.parentNode; |
| 2014 | } |
| 2015 | |
| 2016 | //Look for a data-main attribute to set main script for the page |
| 2017 | //to load. If it is there, the path to data main becomes the |
| 2018 | //baseUrl, if it is not already set. |
| 2019 | dataMain = script.getAttribute('data-main'); |
| 2020 | if (dataMain) { |
| 2021 | //Preserve dataMain in case it is a path (i.e. contains '?') |
| 2022 | mainScript = dataMain; |
| 2023 | |
| 2024 | //Set final baseUrl if there is not already an explicit one, |
| 2025 | //but only do so if the data-main value is not a loader plugin |
| 2026 | //module ID. |
| 2027 | if (!cfg.baseUrl && mainScript.indexOf('!') === -1) { |
| 2028 | //Pull off the directory of data-main for use as the |
| 2029 | //baseUrl. |
| 2030 | src = mainScript.split('/'); |
| 2031 | mainScript = src.pop(); |
| 2032 | subPath = src.length ? src.join('/') + '/' : './'; |
| 2033 | |
| 2034 | cfg.baseUrl = subPath; |
| 2035 | } |
| 2036 | |
| 2037 | //Strip off any trailing .js since mainScript is now |
| 2038 | //like a module name. |
| 2039 | mainScript = mainScript.replace(jsSuffixRegExp, ''); |
| 2040 | |
| 2041 | //If mainScript is still a path, fall back to dataMain |
| 2042 | if (req.jsExtRegExp.test(mainScript)) { |
| 2043 | mainScript = dataMain; |
| 2044 | } |
| 2045 | |
| 2046 | //Put the data-main script in the files to load. |
| 2047 | cfg.deps = cfg.deps ? cfg.deps.concat(mainScript) : [mainScript]; |
| 2048 | |
| 2049 | return true; |
| 2050 | } |
| 2051 | }); |
| 2052 | } |
| 2053 | |
| 2054 | /** |
| 2055 | * The function that handles definitions of modules. Differs from |
| 2056 | * require() in that a string for the module should be the first argument, |
| 2057 | * and the function to execute after dependencies are loaded should |
| 2058 | * return a value to define the module corresponding to the first argument's |
| 2059 | * name. |
| 2060 | */ |
| 2061 | define = function (name, deps, callback) { |
| 2062 | var node, context; |
| 2063 | |
| 2064 | //Allow for anonymous modules |
| 2065 | if (typeof name !== 'string') { |
| 2066 | //Adjust args appropriately |
| 2067 | callback = deps; |
| 2068 | deps = name; |
| 2069 | name = null; |
| 2070 | } |
| 2071 | |
| 2072 | //This module may not have dependencies |
| 2073 | if (!isArray(deps)) { |
| 2074 | callback = deps; |
| 2075 | deps = null; |
| 2076 | } |
| 2077 | |
| 2078 | //If no name, and callback is a function, then figure out if it a |
| 2079 | //CommonJS thing with dependencies. |
| 2080 | if (!deps && isFunction(callback)) { |
| 2081 | deps = []; |
| 2082 | //Remove comments from the callback string, |
| 2083 | //look for require calls, and pull them into the dependencies, |
| 2084 | //but only if there are function args. |
| 2085 | if (callback.length) { |
| 2086 | callback |
| 2087 | .toString() |
| 2088 | .replace(commentRegExp, commentReplace) |
| 2089 | .replace(cjsRequireRegExp, function (match, dep) { |
| 2090 | deps.push(dep); |
| 2091 | }); |
| 2092 | |
| 2093 | //May be a CommonJS thing even without require calls, but still |
| 2094 | //could use exports, and module. Avoid doing exports and module |
| 2095 | //work though if it just needs require. |
| 2096 | //REQUIRES the function to expect the CommonJS variables in the |
| 2097 | //order listed below. |
| 2098 | deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps); |
| 2099 | } |
| 2100 | } |
| 2101 | |
| 2102 | //If in IE 6-8 and hit an anonymous define() call, do the interactive |
| 2103 | //work. |
| 2104 | if (useInteractive) { |
| 2105 | node = currentlyAddingScript || getInteractiveScript(); |
| 2106 | if (node) { |
| 2107 | if (!name) { |
| 2108 | name = node.getAttribute('data-requiremodule'); |
| 2109 | } |
| 2110 | context = contexts[node.getAttribute('data-requirecontext')]; |
| 2111 | } |
| 2112 | } |
| 2113 | |
| 2114 | //Always save off evaluating the def call until the script onload handler. |
| 2115 | //This allows multiple modules to be in a file without prematurely |
| 2116 | //tracing dependencies, and allows for anonymous module support, |
| 2117 | //where the module name is not known until the script onload event |
| 2118 | //occurs. If no context, use the global queue, and get it processed |
| 2119 | //in the onscript load callback. |
| 2120 | if (context) { |
| 2121 | context.defQueue.push([name, deps, callback]); |
| 2122 | context.defQueueMap[name] = true; |
| 2123 | } else { |
| 2124 | globalDefQueue.push([name, deps, callback]); |
| 2125 | } |
| 2126 | }; |
| 2127 | |
| 2128 | define.amd = { |
| 2129 | jQuery: true |
| 2130 | }; |
| 2131 | |
| 2132 | /** |
| 2133 | * Executes the text. Normally just uses eval, but can be modified |
| 2134 | * to use a better, environment-specific call. Only used for transpiling |
| 2135 | * loader plugins, not for plain JS modules. |
| 2136 | * @param {String} text the text to execute/evaluate. |
| 2137 | */ |
| 2138 | req.exec = function (text) { |
| 2139 | /*jslint evil: true */ |
| 2140 | return eval(text); |
| 2141 | }; |
| 2142 | |
| 2143 | //Set up with config info. |
| 2144 | req(cfg); |
| 2145 | }(this, (typeof setTimeout === 'undefined' ? undefined : setTimeout))); |