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551 lines
21 KiB
JavaScript
551 lines
21 KiB
JavaScript
define("dojo/i18n", ["./_base/kernel", "require", "./has", "./_base/array", "./_base/config", "./_base/lang", "./_base/xhr", "./json", "module"],
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function(dojo, require, has, array, config, lang, xhr, json, module){
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// module:
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// dojo/i18n
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has.add("dojo-preload-i18n-Api",
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// if true, define the preload localizations machinery
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1
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);
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1 || has.add("dojo-v1x-i18n-Api",
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// if true, define the v1.x i18n functions
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1
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);
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var
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thisModule = dojo.i18n =
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{
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// summary:
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// This module implements the dojo/i18n! plugin and the v1.6- i18n API
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// description:
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// We choose to include our own plugin to leverage functionality already contained in dojo
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// and thereby reduce the size of the plugin compared to various loader implementations. Also, this
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// allows foreign AMD loaders to be used without their plugins.
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},
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nlsRe =
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// regexp for reconstructing the master bundle name from parts of the regexp match
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// nlsRe.exec("foo/bar/baz/nls/en-ca/foo") gives:
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// ["foo/bar/baz/nls/en-ca/foo", "foo/bar/baz/nls/", "/", "/", "en-ca", "foo"]
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// nlsRe.exec("foo/bar/baz/nls/foo") gives:
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// ["foo/bar/baz/nls/foo", "foo/bar/baz/nls/", "/", "/", "foo", ""]
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// so, if match[5] is blank, it means this is the top bundle definition.
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// courtesy of http://requirejs.org
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/(^.*(^|\/)nls)(\/|$)([^\/]*)\/?([^\/]*)/,
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getAvailableLocales = function(
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root,
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locale,
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bundlePath,
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bundleName
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){
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// summary:
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// return a vector of module ids containing all available locales with respect to the target locale
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// For example, assuming:
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//
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// - the root bundle indicates specific bundles for "fr" and "fr-ca",
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// - bundlePath is "myPackage/nls"
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// - bundleName is "myBundle"
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//
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// Then a locale argument of "fr-ca" would return
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//
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// ["myPackage/nls/myBundle", "myPackage/nls/fr/myBundle", "myPackage/nls/fr-ca/myBundle"]
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//
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// Notice that bundles are returned least-specific to most-specific, starting with the root.
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//
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// If root===false indicates we're working with a pre-AMD i18n bundle that doesn't tell about the available locales;
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// therefore, assume everything is available and get 404 errors that indicate a particular localization is not available
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for(var result = [bundlePath + bundleName], localeParts = locale.split("-"), current = "", i = 0; i<localeParts.length; i++){
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current += (current ? "-" : "") + localeParts[i];
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if(!root || root[current]){
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result.push(bundlePath + current + "/" + bundleName);
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}
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}
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return result;
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},
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cache = {},
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getBundleName = function(moduleName, bundleName, locale){
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locale = locale ? locale.toLowerCase() : dojo.locale;
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moduleName = moduleName.replace(/\./g, "/");
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bundleName = bundleName.replace(/\./g, "/");
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return (/root/i.test(locale)) ?
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(moduleName + "/nls/" + bundleName) :
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(moduleName + "/nls/" + locale + "/" + bundleName);
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},
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getL10nName = dojo.getL10nName = function(moduleName, bundleName, locale){
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return moduleName = module.id + "!" + getBundleName(moduleName, bundleName, locale);
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},
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doLoad = function(require, bundlePathAndName, bundlePath, bundleName, locale, load){
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// summary:
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// get the root bundle which instructs which other bundles are required to construct the localized bundle
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require([bundlePathAndName], function(root){
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var current = lang.clone(root.root),
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availableLocales = getAvailableLocales(!root._v1x && root, locale, bundlePath, bundleName);
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require(availableLocales, function(){
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for (var i = 1; i<availableLocales.length; i++){
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current = lang.mixin(lang.clone(current), arguments[i]);
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}
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// target may not have been resolve (e.g., maybe only "fr" exists when "fr-ca" was requested)
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var target = bundlePathAndName + "/" + locale;
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cache[target] = current;
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load();
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});
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});
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},
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normalize = function(id, toAbsMid){
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// summary:
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// id may be relative.
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// preload has form `*preload*<path>/nls/<module>*<flattened locales>` and
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// therefore never looks like a relative
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return /^\./.test(id) ? toAbsMid(id) : id;
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},
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getLocalesToLoad = function(targetLocale){
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var list = config.extraLocale || [];
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list = lang.isArray(list) ? list : [list];
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list.push(targetLocale);
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return list;
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},
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load = function(id, require, load){
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// summary:
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// id is in one of the following formats
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//
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// 1. <path>/nls/<bundle>
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// => load the bundle, localized to config.locale; load all bundles localized to
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// config.extraLocale (if any); return the loaded bundle localized to config.locale.
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//
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// 2. <path>/nls/<locale>/<bundle>
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// => load then return the bundle localized to <locale>
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//
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// 3. *preload*<path>/nls/<module>*<JSON array of available locales>
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// => for config.locale and all config.extraLocale, load all bundles found
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// in the best-matching bundle rollup. A value of 1 is returned, which
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// is meaningless other than to say the plugin is executing the requested
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// preloads
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//
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// In cases 1 and 2, <path> is always normalized to an absolute module id upon entry; see
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// normalize. In case 3, it <path> is assumed to be absolute; this is arranged by the builder.
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//
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// To load a bundle means to insert the bundle into the plugin's cache and publish the bundle
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// value to the loader. Given <path>, <bundle>, and a particular <locale>, the cache key
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//
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// <path>/nls/<bundle>/<locale>
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//
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// will hold the value. Similarly, then plugin will publish this value to the loader by
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//
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// define("<path>/nls/<bundle>/<locale>", <bundle-value>);
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//
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// Given this algorithm, other machinery can provide fast load paths be preplacing
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// values in the plugin's cache, which is public. When a load is demanded the
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// cache is inspected before starting any loading. Explicitly placing values in the plugin
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// cache is an advanced/experimental feature that should not be needed; use at your own risk.
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//
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// For the normal AMD algorithm, the root bundle is loaded first, which instructs the
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// plugin what additional localized bundles are required for a particular locale. These
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// additional locales are loaded and a mix of the root and each progressively-specific
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// locale is returned. For example:
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//
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// 1. The client demands "dojo/i18n!some/path/nls/someBundle
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//
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// 2. The loader demands load(some/path/nls/someBundle)
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//
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// 3. This plugin require's "some/path/nls/someBundle", which is the root bundle.
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//
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// 4. Assuming config.locale is "ab-cd-ef" and the root bundle indicates that localizations
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// are available for "ab" and "ab-cd-ef" (note the missing "ab-cd", then the plugin
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// requires "some/path/nls/ab/someBundle" and "some/path/nls/ab-cd-ef/someBundle"
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//
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// 5. Upon receiving all required bundles, the plugin constructs the value of the bundle
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// ab-cd-ef as...
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//
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// mixin(mixin(mixin({}, require("some/path/nls/someBundle"),
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// require("some/path/nls/ab/someBundle")),
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// require("some/path/nls/ab-cd-ef/someBundle"));
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//
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// This value is inserted into the cache and published to the loader at the
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// key/module-id some/path/nls/someBundle/ab-cd-ef.
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//
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// The special preload signature (case 3) instructs the plugin to stop servicing all normal requests
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// (further preload requests will be serviced) until all ongoing preloading has completed.
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//
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// The preload signature instructs the plugin that a special rollup module is available that contains
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// one or more flattened, localized bundles. The JSON array of available locales indicates which locales
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// are available. Here is an example:
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//
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// *preload*some/path/nls/someModule*["root", "ab", "ab-cd-ef"]
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//
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// This indicates the following rollup modules are available:
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//
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// some/path/nls/someModule_ROOT
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// some/path/nls/someModule_ab
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// some/path/nls/someModule_ab-cd-ef
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//
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// Each of these modules is a normal AMD module that contains one or more flattened bundles in a hash.
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// For example, assume someModule contained the bundles some/bundle/path/someBundle and
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// some/bundle/path/someOtherBundle, then some/path/nls/someModule_ab would be expressed as follows:
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//
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// define({
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// some/bundle/path/someBundle:<value of someBundle, flattened with respect to locale ab>,
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// some/bundle/path/someOtherBundle:<value of someOtherBundle, flattened with respect to locale ab>,
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// });
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//
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// E.g., given this design, preloading for locale=="ab" can execute the following algorithm:
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//
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// require(["some/path/nls/someModule_ab"], function(rollup){
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// for(var p in rollup){
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// var id = p + "/ab",
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// cache[id] = rollup[p];
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// define(id, rollup[p]);
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// }
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// });
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//
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// Similarly, if "ab-cd" is requested, the algorithm can determine that "ab" is the best available and
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// load accordingly.
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//
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// The builder will write such rollups for every layer if a non-empty localeList profile property is
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// provided. Further, the builder will include the following cache entry in the cache associated with
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// any layer.
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//
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// "*now":function(r){r(['dojo/i18n!*preload*<path>/nls/<module>*<JSON array of available locales>']);}
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//
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// The *now special cache module instructs the loader to apply the provided function to context-require
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// with respect to the particular layer being defined. This causes the plugin to hold all normal service
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// requests until all preloading is complete.
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//
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// Notice that this algorithm is rarely better than the standard AMD load algorithm. Consider the normal case
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// where the target locale has a single segment and a layer depends on a single bundle:
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//
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// Without Preloads:
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//
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// 1. Layer loads root bundle.
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// 2. bundle is demanded; plugin loads single localized bundle.
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//
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// With Preloads:
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//
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// 1. Layer causes preloading of target bundle.
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// 2. bundle is demanded; service is delayed until preloading complete; bundle is returned.
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//
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// In each case a single transaction is required to load the target bundle. In cases where multiple bundles
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// are required and/or the locale has multiple segments, preloads still requires a single transaction whereas
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// the normal path requires an additional transaction for each additional bundle/locale-segment. However all
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// of these additional transactions can be done concurrently. Owing to this analysis, the entire preloading
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// algorithm can be discard during a build by setting the has feature dojo-preload-i18n-Api to false.
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if(has("dojo-preload-i18n-Api")){
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var split = id.split("*"),
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preloadDemand = split[1] == "preload";
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if(preloadDemand){
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if(!cache[id]){
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// use cache[id] to prevent multiple preloads of the same preload; this shouldn't happen, but
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// who knows what over-aggressive human optimizers may attempt
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cache[id] = 1;
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preloadL10n(split[2], json.parse(split[3]), 1, require);
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}
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// don't stall the loader!
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load(1);
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}
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if(preloadDemand || waitForPreloads(id, require, load)){
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return;
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}
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}
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var match = nlsRe.exec(id),
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bundlePath = match[1] + "/",
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bundleName = match[5] || match[4],
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bundlePathAndName = bundlePath + bundleName,
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localeSpecified = (match[5] && match[4]),
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targetLocale = localeSpecified || dojo.locale,
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loadTarget = bundlePathAndName + "/" + targetLocale,
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loadList = localeSpecified ? [targetLocale] : getLocalesToLoad(targetLocale),
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remaining = loadList.length,
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finish = function(){
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if(!--remaining){
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load(lang.delegate(cache[loadTarget]));
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}
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};
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array.forEach(loadList, function(locale){
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var target = bundlePathAndName + "/" + locale;
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if(has("dojo-preload-i18n-Api")){
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checkForLegacyModules(target);
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}
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if(!cache[target]){
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doLoad(require, bundlePathAndName, bundlePath, bundleName, locale, finish);
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}else{
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finish();
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}
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});
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};
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if(has("dojo-unit-tests")){
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var unitTests = thisModule.unitTests = [];
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}
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if(has("dojo-preload-i18n-Api") || 1 ){
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var normalizeLocale = thisModule.normalizeLocale = function(locale){
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var result = locale ? locale.toLowerCase() : dojo.locale;
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return result == "root" ? "ROOT" : result;
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},
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isXd = function(mid, contextRequire){
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return ( 1 && 1 ) ?
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contextRequire.isXdUrl(require.toUrl(mid + ".js")) :
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true;
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},
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preloading = 0,
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preloadWaitQueue = [],
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preloadL10n = thisModule._preloadLocalizations = function(/*String*/bundlePrefix, /*Array*/localesGenerated, /*boolean?*/ guaranteedAmdFormat, /*function?*/ contextRequire){
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// summary:
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// Load available flattened resource bundles associated with a particular module for dojo/locale and all dojo/config.extraLocale (if any)
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// description:
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// Only called by built layer files. The entire locale hierarchy is loaded. For example,
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// if locale=="ab-cd", then ROOT, "ab", and "ab-cd" are loaded. This is different than v1.6-
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// in that the v1.6- would only load ab-cd...which was *always* flattened.
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//
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// If guaranteedAmdFormat is true, then the module can be loaded with require thereby circumventing the detection algorithm
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// and the extra possible extra transaction.
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// If this function is called from legacy code, then guaranteedAmdFormat and contextRequire will be undefined. Since the function
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// needs a require in order to resolve module ids, fall back to the context-require associated with this dojo/i18n module, which
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// itself may have been mapped.
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contextRequire = contextRequire || require;
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function doRequire(mid, callback){
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if(isXd(mid, contextRequire) || guaranteedAmdFormat){
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contextRequire([mid], callback);
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}else{
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syncRequire([mid], callback, contextRequire);
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}
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}
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function forEachLocale(locale, func){
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// given locale= "ab-cd-ef", calls func on "ab-cd-ef", "ab-cd", "ab", "ROOT"; stops calling the first time func returns truthy
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var parts = locale.split("-");
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while(parts.length){
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if(func(parts.join("-"))){
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return;
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}
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parts.pop();
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}
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func("ROOT");
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}
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function preload(locale){
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locale = normalizeLocale(locale);
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forEachLocale(locale, function(loc){
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if(array.indexOf(localesGenerated, loc)>=0){
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var mid = bundlePrefix.replace(/\./g, "/")+"_"+loc;
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preloading++;
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doRequire(mid, function(rollup){
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for(var p in rollup){
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cache[require.toAbsMid(p) + "/" + loc] = rollup[p];
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}
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--preloading;
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while(!preloading && preloadWaitQueue.length){
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load.apply(null, preloadWaitQueue.shift());
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}
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});
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return true;
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}
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return false;
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});
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}
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preload();
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array.forEach(dojo.config.extraLocale, preload);
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},
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waitForPreloads = function(id, require, load){
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if(preloading){
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preloadWaitQueue.push([id, require, load]);
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}
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return preloading;
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},
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checkForLegacyModules = function()
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{};
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}
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if( 1 ){
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// this code path assumes the dojo loader and won't work with a standard AMD loader
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var amdValue = {},
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evalBundle =
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// use the function ctor to keep the minifiers away (also come close to global scope, but this is secondary)
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new Function(
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"__bundle", // the bundle to evalutate
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"__checkForLegacyModules", // a function that checks if __bundle defined __mid in the global space
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"__mid", // the mid that __bundle is intended to define
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"__amdValue",
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// returns one of:
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// 1 => the bundle was an AMD bundle
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// a legacy bundle object that is the value of __mid
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// instance of Error => could not figure out how to evaluate bundle
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// used to detect when __bundle calls define
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"var define = function(mid, factory){define.called = 1; __amdValue.result = factory || mid;},"
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+ " require = function(){define.called = 1;};"
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+ "try{"
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+ "define.called = 0;"
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+ "eval(__bundle);"
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+ "if(define.called==1)"
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// bundle called define; therefore signal it's an AMD bundle
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+ "return __amdValue;"
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+ "if((__checkForLegacyModules = __checkForLegacyModules(__mid)))"
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// bundle was probably a v1.6- built NLS flattened NLS bundle that defined __mid in the global space
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+ "return __checkForLegacyModules;"
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+ "}catch(e){}"
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// evaulating the bundle was *neither* an AMD *nor* a legacy flattened bundle
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// either way, re-eval *after* surrounding with parentheses
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+ "try{"
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+ "return eval('('+__bundle+')');"
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+ "}catch(e){"
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+ "return e;"
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+ "}"
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),
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syncRequire = function(deps, callback, require){
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var results = [];
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array.forEach(deps, function(mid){
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var url = require.toUrl(mid + ".js");
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function load(text){
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var result = evalBundle(text, checkForLegacyModules, mid, amdValue);
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if(result===amdValue){
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// the bundle was an AMD module; re-inject it through the normal AMD path
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// we gotta do this since it could be an anonymous module and simply evaluating
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// the text here won't provide the loader with the context to know what
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// module is being defined()'d. With browser caching, this should be free; further
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// this entire code path can be circumvented by using the AMD format to begin with
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results.push(cache[url] = amdValue.result);
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}else{
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if(result instanceof Error){
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console.error("failed to evaluate i18n bundle; url=" + url, result);
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result = {};
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}
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// nls/<locale>/<bundle-name> indicates not the root.
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results.push(cache[url] = (/nls\/[^\/]+\/[^\/]+$/.test(url) ? result : {root:result, _v1x:1}));
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}
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}
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if(cache[url]){
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results.push(cache[url]);
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}else{
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var bundle = require.syncLoadNls(mid);
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// don't need to check for legacy since syncLoadNls returns a module if the module
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// (1) was already loaded, or (2) was in the cache. In case 1, if syncRequire is called
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// from getLocalization --> load, then load will have called checkForLegacyModules() before
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// calling syncRequire; if syncRequire is called from preloadLocalizations, then we
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// don't care about checkForLegacyModules() because that will be done when a particular
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// bundle is actually demanded. In case 2, checkForLegacyModules() is never relevant
|
|
// because cached modules are always v1.7+ built modules.
|
|
if(bundle){
|
|
results.push(bundle);
|
|
}else{
|
|
if(!xhr){
|
|
try{
|
|
require.getText(url, true, load);
|
|
}catch(e){
|
|
results.push(cache[url] = {});
|
|
}
|
|
}else{
|
|
xhr.get({
|
|
url:url,
|
|
sync:true,
|
|
load:load,
|
|
error:function(){
|
|
results.push(cache[url] = {});
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
});
|
|
callback && callback.apply(null, results);
|
|
};
|
|
|
|
checkForLegacyModules = function(target){
|
|
// legacy code may have already loaded [e.g] the raw bundle x/y/z at x.y.z; when true, push into the cache
|
|
for(var result, names = target.split("/"), object = dojo.global[names[0]], i = 1; object && i<names.length-1; object = object[names[i++]]){}
|
|
if(object){
|
|
result = object[names[i]];
|
|
if(!result){
|
|
// fallback for incorrect bundle build of 1.6
|
|
result = object[names[i].replace(/-/g,"_")];
|
|
}
|
|
if(result){
|
|
cache[target] = result;
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
|
|
thisModule.getLocalization = function(moduleName, bundleName, locale){
|
|
var result,
|
|
l10nName = getBundleName(moduleName, bundleName, locale);
|
|
load(
|
|
l10nName,
|
|
|
|
// isXd() and syncRequire() need a context-require in order to resolve the mid with respect to a reference module.
|
|
// Since this legacy function does not have the concept of a reference module, resolve with respect to this
|
|
// dojo/i18n module, which, itself may have been mapped.
|
|
(!isXd(l10nName, require) ? function(deps, callback){ syncRequire(deps, callback, require); } : require),
|
|
|
|
function(result_){ result = result_; }
|
|
);
|
|
return result;
|
|
};
|
|
|
|
if(has("dojo-unit-tests")){
|
|
unitTests.push(function(doh){
|
|
doh.register("tests.i18n.unit", function(t){
|
|
var check;
|
|
|
|
check = evalBundle("{prop:1}", checkForLegacyModules, "nonsense", amdValue);
|
|
t.is({prop:1}, check); t.is(undefined, check[1]);
|
|
|
|
check = evalBundle("({prop:1})", checkForLegacyModules, "nonsense", amdValue);
|
|
t.is({prop:1}, check); t.is(undefined, check[1]);
|
|
|
|
check = evalBundle("{'prop-x':1}", checkForLegacyModules, "nonsense", amdValue);
|
|
t.is({'prop-x':1}, check); t.is(undefined, check[1]);
|
|
|
|
check = evalBundle("({'prop-x':1})", checkForLegacyModules, "nonsense", amdValue);
|
|
t.is({'prop-x':1}, check); t.is(undefined, check[1]);
|
|
|
|
check = evalBundle("define({'prop-x':1})", checkForLegacyModules, "nonsense", amdValue);
|
|
t.is(amdValue, check); t.is({'prop-x':1}, amdValue.result);
|
|
|
|
check = evalBundle("define('some/module', {'prop-x':1})", checkForLegacyModules, "nonsense", amdValue);
|
|
t.is(amdValue, check); t.is({'prop-x':1}, amdValue.result);
|
|
|
|
check = evalBundle("this is total nonsense and should throw an error", checkForLegacyModules, "nonsense", amdValue);
|
|
t.is(check instanceof Error, true);
|
|
});
|
|
});
|
|
}
|
|
}
|
|
|
|
return lang.mixin(thisModule, {
|
|
dynamic:true,
|
|
normalize:normalize,
|
|
load:load,
|
|
cache:cache
|
|
});
|
|
});
|