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Changes | 1 | ||
Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
1 | /** vim: et:ts=4:sw=4:sts=4 |
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199 | function newContext(contextName) { |
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200 | var inCheckLoaded, Module, context, handlers, |
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201 | checkLoadedTimeoutId, |
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202 | config = { |
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203 | //Defaults. Do not set a default for map |
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204 | //config to speed up normalize(), which |
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205 | //will run faster if there is no default. |
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206 | waitSeconds: 7, |
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207 | baseUrl: './', |
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208 | paths: {}, |
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209 | bundles: {}, |
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210 | pkgs: {}, |
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211 | shim: {}, |
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212 | config: {} |
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213 | }, |
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214 | registry = {}, |
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215 | //registry of just enabled modules, to speed |
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216 | //cycle breaking code when lots of modules |
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217 | //are registered, but not activated. |
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218 | enabledRegistry = {}, |
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219 | undefEvents = {}, |
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220 | defQueue = [], |
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221 | defined = {}, |
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222 | urlFetched = {}, |
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223 | bundlesMap = {}, |
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224 | requireCounter = 1, |
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225 | unnormalizedCounter = 1; |
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226 | |||
227 | /** |
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228 | * Trims the . and .. from an array of path segments. |
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229 | * It will keep a leading path segment if a .. will become |
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230 | * the first path segment, to help with module name lookups, |
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231 | * which act like paths, but can be remapped. But the end result, |
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232 | * all paths that use this function should look normalized. |
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233 | * NOTE: this method MODIFIES the input array. |
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234 | * @param {Array} ary the array of path segments. |
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235 | */ |
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236 | function trimDots(ary) { |
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237 | var i, part; |
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238 | for (i = 0; i < ary.length; i++) { |
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239 | part = ary[i]; |
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240 | if (part === '.') { |
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241 | ary.splice(i, 1); |
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242 | i -= 1; |
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243 | } else if (part === '..') { |
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244 | // If at the start, or previous value is still .., |
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245 | // keep them so that when converted to a path it may |
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246 | // still work when converted to a path, even though |
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247 | // as an ID it is less than ideal. In larger point |
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248 | // releases, may be better to just kick out an error. |
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249 | if (i === 0 || (i === 1 && ary[2] === '..') || ary[i - 1] === '..') { |
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250 | continue; |
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251 | } else if (i > 0) { |
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252 | ary.splice(i - 1, 2); |
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253 | i -= 2; |
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254 | } |
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255 | } |
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256 | } |
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257 | } |
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258 | |||
259 | /** |
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260 | * Given a relative module name, like ./something, normalize it to |
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261 | * a real name that can be mapped to a path. |
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262 | * @param {String} name the relative name |
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263 | * @param {String} baseName a real name that the name arg is relative |
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264 | * to. |
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265 | * @param {Boolean} applyMap apply the map config to the value. Should |
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266 | * only be done if this normalization is for a dependency ID. |
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267 | * @returns {String} normalized name |
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268 | */ |
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269 | function normalize(name, baseName, applyMap) { |
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270 | var pkgMain, mapValue, nameParts, i, j, nameSegment, lastIndex, |
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271 | foundMap, foundI, foundStarMap, starI, normalizedBaseParts, |
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272 | baseParts = (baseName && baseName.split('/')), |
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273 | map = config.map, |
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274 | starMap = map && map['*']; |
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275 | |||
276 | //Adjust any relative paths. |
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277 | if (name) { |
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278 | name = name.split('/'); |
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279 | lastIndex = name.length - 1; |
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280 | |||
281 | // If wanting node ID compatibility, strip .js from end |
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282 | // of IDs. Have to do this here, and not in nameToUrl |
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283 | // because node allows either .js or non .js to map |
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284 | // to same file. |
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285 | if (config.nodeIdCompat && jsSuffixRegExp.test(name[lastIndex])) { |
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286 | name[lastIndex] = name[lastIndex].replace(jsSuffixRegExp, ''); |
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287 | } |
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288 | |||
289 | // Starts with a '.' so need the baseName |
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290 | if (name[0].charAt(0) === '.' && baseParts) { |
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291 | //Convert baseName to array, and lop off the last part, |
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292 | //so that . matches that 'directory' and not name of the baseName's |
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293 | //module. For instance, baseName of 'one/two/three', maps to |
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294 | //'one/two/three.js', but we want the directory, 'one/two' for |
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295 | //this normalization. |
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296 | normalizedBaseParts = baseParts.slice(0, baseParts.length - 1); |
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297 | name = normalizedBaseParts.concat(name); |
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298 | } |
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299 | |||
300 | trimDots(name); |
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301 | name = name.join('/'); |
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302 | } |
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303 | |||
304 | //Apply map config if available. |
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305 | if (applyMap && map && (baseParts || starMap)) { |
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306 | nameParts = name.split('/'); |
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307 | |||
308 | outerLoop: for (i = nameParts.length; i > 0; i -= 1) { |
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309 | nameSegment = nameParts.slice(0, i).join('/'); |
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310 | |||
311 | if (baseParts) { |
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312 | //Find the longest baseName segment match in the config. |
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313 | //So, do joins on the biggest to smallest lengths of baseParts. |
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314 | for (j = baseParts.length; j > 0; j -= 1) { |
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315 | mapValue = getOwn(map, baseParts.slice(0, j).join('/')); |
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316 | |||
317 | //baseName segment has config, find if it has one for |
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318 | //this name. |
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319 | if (mapValue) { |
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320 | mapValue = getOwn(mapValue, nameSegment); |
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321 | if (mapValue) { |
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322 | //Match, update name to the new value. |
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323 | foundMap = mapValue; |
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324 | foundI = i; |
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325 | break outerLoop; |
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326 | } |
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327 | } |
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328 | } |
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329 | } |
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330 | |||
331 | //Check for a star map match, but just hold on to it, |
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332 | //if there is a shorter segment match later in a matching |
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333 | //config, then favor over this star map. |
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334 | if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) { |
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335 | foundStarMap = getOwn(starMap, nameSegment); |
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336 | starI = i; |
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337 | } |
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338 | } |
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339 | |||
340 | if (!foundMap && foundStarMap) { |
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341 | foundMap = foundStarMap; |
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342 | foundI = starI; |
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343 | } |
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344 | |||
345 | if (foundMap) { |
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346 | nameParts.splice(0, foundI, foundMap); |
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347 | name = nameParts.join('/'); |
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348 | } |
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349 | } |
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350 | |||
351 | // If the name points to a package's name, use |
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352 | // the package main instead. |
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353 | pkgMain = getOwn(config.pkgs, name); |
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354 | |||
355 | return pkgMain ? pkgMain : name; |
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356 | } |
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357 | |||
358 | function removeScript(name) { |
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359 | if (isBrowser) { |
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360 | each(scripts(), function (scriptNode) { |
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361 | if (scriptNode.getAttribute('data-requiremodule') === name && |
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362 | scriptNode.getAttribute('data-requirecontext') === context.contextName) { |
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363 | scriptNode.parentNode.removeChild(scriptNode); |
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364 | return true; |
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365 | } |
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366 | }); |
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367 | } |
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368 | } |
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369 | |||
370 | function hasPathFallback(id) { |
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371 | var pathConfig = getOwn(config.paths, id); |
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372 | if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) { |
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373 | //Pop off the first array value, since it failed, and |
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374 | //retry |
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375 | pathConfig.shift(); |
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376 | context.require.undef(id); |
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377 | |||
378 | //Custom require that does not do map translation, since |
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379 | //ID is "absolute", already mapped/resolved. |
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380 | context.makeRequire(null, { |
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381 | skipMap: true |
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382 | })([id]); |
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383 | |||
384 | return true; |
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385 | } |
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386 | } |
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387 | |||
388 | //Turns a plugin!resource to [plugin, resource] |
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389 | //with the plugin being undefined if the name |
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390 | //did not have a plugin prefix. |
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391 | function splitPrefix(name) { |
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392 | var prefix, |
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393 | index = name ? name.indexOf('!') : -1; |
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394 | if (index > -1) { |
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395 | prefix = name.substring(0, index); |
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396 | name = name.substring(index + 1, name.length); |
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397 | } |
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398 | return [prefix, name]; |
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399 | } |
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400 | |||
401 | /** |
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402 | * Creates a module mapping that includes plugin prefix, module |
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403 | * name, and path. If parentModuleMap is provided it will |
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404 | * also normalize the name via require.normalize() |
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405 | * |
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406 | * @param {String} name the module name |
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407 | * @param {String} [parentModuleMap] parent module map |
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408 | * for the module name, used to resolve relative names. |
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409 | * @param {Boolean} isNormalized: is the ID already normalized. |
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410 | * This is true if this call is done for a define() module ID. |
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411 | * @param {Boolean} applyMap: apply the map config to the ID. |
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412 | * Should only be true if this map is for a dependency. |
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413 | * |
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414 | * @returns {Object} |
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415 | */ |
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416 | function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) { |
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417 | var url, pluginModule, suffix, nameParts, |
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418 | prefix = null, |
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419 | parentName = parentModuleMap ? parentModuleMap.name : null, |
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420 | originalName = name, |
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421 | isDefine = true, |
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422 | normalizedName = ''; |
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423 | |||
424 | //If no name, then it means it is a require call, generate an |
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425 | //internal name. |
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426 | if (!name) { |
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427 | isDefine = false; |
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428 | name = '_@r' + (requireCounter += 1); |
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429 | } |
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430 | |||
431 | nameParts = splitPrefix(name); |
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432 | prefix = nameParts[0]; |
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433 | name = nameParts[1]; |
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434 | |||
435 | if (prefix) { |
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436 | prefix = normalize(prefix, parentName, applyMap); |
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437 | pluginModule = getOwn(defined, prefix); |
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438 | } |
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439 | |||
440 | //Account for relative paths if there is a base name. |
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441 | if (name) { |
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442 | if (prefix) { |
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443 | if (isNormalized) { |
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444 | normalizedName = name; |
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445 | } else if (pluginModule && pluginModule.normalize) { |
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446 | //Plugin is loaded, use its normalize method. |
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447 | normalizedName = pluginModule.normalize(name, function (name) { |
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448 | return normalize(name, parentName, applyMap); |
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449 | }); |
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450 | } else { |
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451 | // If nested plugin references, then do not try to |
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452 | // normalize, as it will not normalize correctly. This |
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453 | // places a restriction on resourceIds, and the longer |
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454 | // term solution is not to normalize until plugins are |
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455 | // loaded and all normalizations to allow for async |
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456 | // loading of a loader plugin. But for now, fixes the |
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457 | // common uses. Details in #1131 |
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458 | normalizedName = name.indexOf('!') === -1 ? |
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459 | normalize(name, parentName, applyMap) : |
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460 | name; |
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461 | } |
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462 | } else { |
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463 | //A regular module. |
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464 | normalizedName = normalize(name, parentName, applyMap); |
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465 | |||
466 | //Normalized name may be a plugin ID due to map config |
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467 | //application in normalize. The map config values must |
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468 | //already be normalized, so do not need to redo that part. |
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469 | nameParts = splitPrefix(normalizedName); |
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470 | prefix = nameParts[0]; |
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471 | normalizedName = nameParts[1]; |
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472 | isNormalized = true; |
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473 | |||
474 | url = context.nameToUrl(normalizedName); |
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475 | } |
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476 | } |
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477 | |||
478 | //If the id is a plugin id that cannot be determined if it needs |
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479 | //normalization, stamp it with a unique ID so two matching relative |
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480 | //ids that may conflict can be separate. |
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481 | suffix = prefix && !pluginModule && !isNormalized ? |
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482 | '_unnormalized' + (unnormalizedCounter += 1) : |
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483 | ''; |
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484 | |||
485 | return { |
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486 | prefix: prefix, |
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487 | name: normalizedName, |
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488 | parentMap: parentModuleMap, |
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489 | unnormalized: !!suffix, |
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490 | url: url, |
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491 | originalName: originalName, |
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492 | isDefine: isDefine, |
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493 | id: (prefix ? |
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494 | prefix + '!' + normalizedName : |
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495 | normalizedName) + suffix |
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496 | }; |
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497 | } |
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498 | |||
499 | function getModule(depMap) { |
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500 | var id = depMap.id, |
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501 | mod = getOwn(registry, id); |
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502 | |||
503 | if (!mod) { |
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504 | mod = registry[id] = new context.Module(depMap); |
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505 | } |
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506 | |||
507 | return mod; |
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508 | } |
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509 | |||
510 | function on(depMap, name, fn) { |
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511 | var id = depMap.id, |
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512 | mod = getOwn(registry, id); |
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513 | |||
514 | if (hasProp(defined, id) && |
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515 | (!mod || mod.defineEmitComplete)) { |
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516 | if (name === 'defined') { |
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517 | fn(defined[id]); |
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518 | } |
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519 | } else { |
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520 | mod = getModule(depMap); |
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521 | if (mod.error && name === 'error') { |
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522 | fn(mod.error); |
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523 | } else { |
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524 | mod.on(name, fn); |
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525 | } |
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526 | } |
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527 | } |
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528 | |||
529 | function onError(err, errback) { |
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530 | var ids = err.requireModules, |
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531 | notified = false; |
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532 | |||
533 | if (errback) { |
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534 | errback(err); |
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535 | } else { |
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536 | each(ids, function (id) { |
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537 | var mod = getOwn(registry, id); |
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538 | if (mod) { |
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539 | //Set error on module, so it skips timeout checks. |
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540 | mod.error = err; |
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541 | if (mod.events.error) { |
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542 | notified = true; |
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543 | mod.emit('error', err); |
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544 | } |
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545 | } |
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546 | }); |
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547 | |||
548 | if (!notified) { |
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549 | req.onError(err); |
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550 | } |
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551 | } |
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552 | } |
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553 | |||
554 | /** |
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555 | * Internal method to transfer globalQueue items to this context's |
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556 | * defQueue. |
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557 | */ |
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558 | function takeGlobalQueue() { |
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559 | //Push all the globalDefQueue items into the context's defQueue |
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560 | if (globalDefQueue.length) { |
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561 | each(globalDefQueue, function(queueItem) { |
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562 | var id = queueItem[0]; |
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563 | if (typeof id === 'string') { |
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564 | context.defQueueMap[id] = true; |
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565 | } |
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566 | defQueue.push(queueItem); |
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567 | }); |
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568 | globalDefQueue = []; |
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569 | } |
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570 | } |
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571 | |||
572 | handlers = { |
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573 | 'require': function (mod) { |
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574 | if (mod.require) { |
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575 | return mod.require; |
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576 | } else { |
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577 | return (mod.require = context.makeRequire(mod.map)); |
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578 | } |
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579 | }, |
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580 | 'exports': function (mod) { |
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581 | mod.usingExports = true; |
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582 | if (mod.map.isDefine) { |
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583 | if (mod.exports) { |
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584 | return (defined[mod.map.id] = mod.exports); |
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585 | } else { |
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586 | return (mod.exports = defined[mod.map.id] = {}); |
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587 | } |
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588 | } |
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589 | }, |
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590 | 'module': function (mod) { |
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591 | if (mod.module) { |
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592 | return mod.module; |
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593 | } else { |
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594 | return (mod.module = { |
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595 | id: mod.map.id, |
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596 | uri: mod.map.url, |
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597 | config: function () { |
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598 | return getOwn(config.config, mod.map.id) || {}; |
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599 | }, |
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600 | exports: mod.exports || (mod.exports = {}) |
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601 | }); |
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602 | } |
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603 | } |
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604 | }; |
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605 | |||
606 | function cleanRegistry(id) { |
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607 | //Clean up machinery used for waiting modules. |
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608 | delete registry[id]; |
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609 | delete enabledRegistry[id]; |
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610 | } |
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611 | |||
612 | function breakCycle(mod, traced, processed) { |
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613 | var id = mod.map.id; |
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614 | |||
615 | if (mod.error) { |
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616 | mod.emit('error', mod.error); |
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617 | } else { |
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618 | traced[id] = true; |
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619 | each(mod.depMaps, function (depMap, i) { |
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620 | var depId = depMap.id, |
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621 | dep = getOwn(registry, depId); |
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622 | |||
623 | //Only force things that have not completed |
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624 | //being defined, so still in the registry, |
||
625 | //and only if it has not been matched up |
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626 | //in the module already. |
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627 | if (dep && !mod.depMatched[i] && !processed[depId]) { |
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628 | if (getOwn(traced, depId)) { |
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629 | mod.defineDep(i, defined[depId]); |
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630 | mod.check(); //pass false? |
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631 | } else { |
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632 | breakCycle(dep, traced, processed); |
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633 | } |
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634 | } |
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635 | }); |
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636 | processed[id] = true; |
||
637 | } |
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638 | } |
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639 | |||
640 | function checkLoaded() { |
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641 | var err, usingPathFallback, |
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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 = [], |
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646 | reqCalls = [], |
||
647 | stillLoading = false, |
||
648 | needCycleCheck = true; |
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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; |
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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 | |||
2146 |