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translate.js
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translate.js
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/**
* Translate.js
*
* https://github.com/myei/translate.js
*/
var Translate = function (user_options) {
var options = {lang: 'es', prefix: 'lang_', className: 'translate'}, _this = this;
var build = function (user_options) {
options = Object.assign(options, user_options);
setLang(options.lang);
if (isLangDefined())
translateFields();
else
console.error('[translate.js] Objeto de idioma `'+ options.prefix + options.lang + '` no encontrado. Por favor incluya los archivos de idioma.');
};
var getBrowserLang = function () {
return (navigator.language || navigator.userLanguage).substr(0,2);
};
var setLang = function (_lang) {
_this.lang = _lang.toLowerCase() === 'browser' ? window[options.prefix + getBrowserLang()] : window[options.prefix + _lang];
};
var isLangDefined = function () {
return !!_this.lang;
};
var getLang = function () {
return options.lang;
};
var translateFields = function () {
var criteria, target;
document.querySelectorAll('.' + options.className).forEach(function(field) {
var field_criteria = Object.keys(field.dataset).filter(function(data) {
if (!data.indexOf('translate')) {
criteria = data.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase().split('-');
target = criteria.length > 1 ? criteria[1] : field.nodeName.toLowerCase() === 'input' ? 'placeholder' : 'innerHTML';
field[target] = get(field.dataset[!!criteria.length ? data : 'translate']);
return data;
}
});
if (field_criteria.length === 0)
console.warn('[translate.js] No se encontró atributo `data-translate*` en el campo:', field);
});
};
var get = function (argument) {
var translated = argument.split('.').reduce(function (a, b) { return a[b] || ''; }, _this.lang || []);
if (translated.length === 0)
console.error('[translate.js] No se encontró el keyword:', argument);
return translated;
};
build(user_options);
return {
getLang: function () {
return getLang();
},
get: function (argument) {
return get(argument);
}
};
};