114 lines
2.0 KiB
JavaScript
114 lines
2.0 KiB
JavaScript
var yaml = require('js-yaml');
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vnLocaleStrings = {};
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/**
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* Class to manage the internationalization.
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**/
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module.exports =
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{
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language: null
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,defaultLang: 'en'
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,init: function ()
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{
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if (this.language)
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return;
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var language = this.defaultLang;
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var languages = navigator.languages;
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if (languages && languages.length > 0)
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language = languages[0];
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else if (navigator.language)
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language = navigator.language;
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this.language = language.substr (0, 2);
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}
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,load: function (path, callback)
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{
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this.init ();
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var data = {
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path: path,
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callback: callback,
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defOk: false,
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orgOk: this.defaultLang === this.language
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};
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data.def = this.createRequest (data, true, this.defaultLang);
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if (!data.orgOk)
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data.org = this.createRequest (data, false, this.language);
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}
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,createRequest: function (data, isDef, lang)
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{
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var langFile = data.path +'/locale/'+ lang +'.yml'+ Vn.getVersion ();
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var request = new XMLHttpRequest ();
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request.open ('get', langFile, true);
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request.onreadystatechange =
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this.onRequestReady.bind (this, request, data, isDef);
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request.send ();
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return request;
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}
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,onRequestReady: function (request, data, isDef)
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{
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if (request.readyState != 4)
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return;
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if (isDef)
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{
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this.loadFromRequest (request);
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data.defOk = true;
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}
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else
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data.orgOk = true;
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if (data.orgOk && data.defOk)
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{
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if (data.org != null)
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this.loadFromRequest (data.org)
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if (data.callback)
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data.callback ();
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}
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}
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,loadFromRequest: function (request)
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{
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if (request.status !== 200)
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return false;
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try {
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this.add (yaml.safeLoad (request.responseText));
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return true;
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}
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catch (e) {
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console.error (e);
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}
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return false
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}
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,loadScript: function (path, callback)
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{
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this.init ();
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Vn.includeJs (path +'/locale/'+ this.language, callback);
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}
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,add: function (translations)
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{
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for (var str in translations)
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vnLocaleStrings[str] = translations[str];
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}
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}
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window._ = function (stringId)
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{
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var string = vnLocaleStrings[stringId];
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return string ? string : stringId;
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}
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