implab/implabjs-djx Files · djx/src/main/ts/NlsBundle.ts

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             NlsBundle.ts
        
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             / djx / src / main / ts / NlsBundle.ts
          
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        cin
    
Converted to subproject djx, removed dojo-typings

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      import { MapOf, PromiseOrValue } from "@implab/core-amd/interfaces";

      import { argumentNotEmptyString, isPromise, mixin } from "@implab/core-amd/safe";

      export type LocaleProvider<T> = () => PromiseOrValue<T | { default: T }>;

      function when<T, T2>(value: PromiseOrValue<T>, cb: (v: T) => PromiseOrValue<T2>): PromiseOrValue<T2> {

          return isPromise(value) ?

              value.then(cb) :

              cb(value);

      }

        cin
    
linting

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      const chainObjects = <T extends object, T2 extends object>(o1: T, o2: T2) =>

          mixin(Object.create(o1) as T, o2);

      export class NlsBundle<T extends object> {

          private readonly _locales: MapOf<LocaleProvider<Partial<T>>>;

        cin
    
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        cin
    
linting

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          private readonly _default: T;

        cin
    
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          private _cache: MapOf<PromiseOrValue<T>>;

          constructor(defNls: T, locales?: MapOf<LocaleProvider<Partial<T>>>) {

              this._default = defNls;

              this._locales = locales || {};

              this._cache = {};

          }

          getLocale(locale: string) {

              argumentNotEmptyString(locale, "locale");

              const _loc = locale;

              // en-US => ["en", "en-US"]

              const locales = _loc.split(/-|_/).map((x, i, a) => a.slice(0, i + 1).join("-"));

              return this._resolveLocale(locales);

          }

          _resolveLocale(locales: string[]): PromiseOrValue<T> {

              if (!locales.length)

                  return this._default;

              const locale = locales.pop();

              if (!locale)

                  throw new Error("The locale can't be empty");

              if (this._cache[locale])

                  return this._cache[locale];

              const data = this._loadPackage(this._locales[locale]);

              const parent = this._resolveLocale(locales);

              return this._cache[locale] = when(data, x => {

                  return when(parent, y => this._cache[locale] = chainObjects(y, x));

              });

          }

        cin
    
linting

              r109
            
          _loadPackage(localeData: LocaleProvider<Partial<T>>) {

              return when(localeData(), data => data && "default" in data ? data.default : data);

        cin
    
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              r65
            
          }

      }

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cin Converted to subproject djx, removed dojo-typings	r65	import { MapOf, PromiseOrValue } from "@implab/core-amd/interfaces";
		import { argumentNotEmptyString, isPromise, mixin } from "@implab/core-amd/safe";

		export type LocaleProvider<T> = () => PromiseOrValue<T \| { default: T }>;

		function when<T, T2>(value: PromiseOrValue<T>, cb: (v: T) => PromiseOrValue<T2>): PromiseOrValue<T2> {
		return isPromise(value) ?
		value.then(cb) :
		cb(value);
		}

cin linting	r109	const chainObjects = <T extends object, T2 extends object>(o1: T, o2: T2) =>
		mixin(Object.create(o1) as T, o2);
		export class NlsBundle<T extends object> {
		private readonly _locales: MapOf<LocaleProvider<Partial<T>>>;
cin Converted to subproject djx, removed dojo-typings	r65
cin linting	r109	private readonly _default: T;
cin Converted to subproject djx, removed dojo-typings	r65
		private _cache: MapOf<PromiseOrValue<T>>;

		constructor(defNls: T, locales?: MapOf<LocaleProvider<Partial<T>>>) {
		this._default = defNls;
		this._locales = locales \|\| {};
		this._cache = {};
		}

		getLocale(locale: string) {
		argumentNotEmptyString(locale, "locale");
		const _loc = locale;

		// en-US => ["en", "en-US"]
		const locales = _loc.split(/-\|_/).map((x, i, a) => a.slice(0, i + 1).join("-"));
		return this._resolveLocale(locales);
		}

		_resolveLocale(locales: string[]): PromiseOrValue<T> {
		if (!locales.length)
		return this._default;

		const locale = locales.pop();
		if (!locale)
		throw new Error("The locale can't be empty");

		if (this._cache[locale])
		return this._cache[locale];

		const data = this._loadPackage(this._locales[locale]);
		const parent = this._resolveLocale(locales);

		return this._cache[locale] = when(data, x => {
		return when(parent, y => this._cache[locale] = chainObjects(y, x));
		});
		}

cin linting	r109	_loadPackage(localeData: LocaleProvider<Partial<T>>) {
		return when(localeData(), data => data && "default" in data ? data.default : data);
cin Converted to subproject djx, removed dojo-typings	r65	}
		}