Function getDefaultLanguage

src/scripts/services/ariaNgSettingService.js:77–124

()

        };

        var getDefaultLanguage = function () {
            var browserLang = $window.navigator.browserLanguage ? $window.navigator.browserLanguage : $window.navigator.language;

            if (!browserLang) {
                ariaNgLogService.info('[ariaNgSettingService] cannot get browser language, use default language');
                return ariaNgDefaultOptions.language;
            }

            browserLang = browserLang.replace(/\-/g, '_');

            if (!ariaNgLanguages[browserLang]) {
                var languageName = getLanguageNameFromAlias(browserLang);

                if (languageName) {
                    browserLang = languageName;
                }
            }

            if (!ariaNgLanguages[browserLang] && browserLang.split('_').length > 1) { // maybe language-script-region
                var langParts = browserLang.split('_');
                browserLang = langParts[0] + '_' + langParts[1];

                if (!ariaNgLanguages[browserLang]) {
                    var languageName = getLanguageNameFromAlias(browserLang);

                    if (languageName) {
                        browserLang = languageName;
                    }
                }

                if (!ariaNgLanguages[browserLang]) {
                    browserLang = langParts[0];
                    var languageName = getLanguageNameFromAlias(browserLang);

                    if (languageName) {
                        browserLang = languageName;
                    }
                }
            }

            if (!ariaNgLanguages[browserLang]) {
                ariaNgLogService.info('[ariaNgSettingService] browser language \"' + browserLang + '\" not support, use default language');
                return ariaNgDefaultOptions.language;
            }

            ariaNgLogService.info('[ariaNgSettingService] use browser language \"' + browserLang + '\" as current language');
            return browserLang;
        };

        var getLanguageNameFromAliasOrDefaultLanguage = function (lang) {
            var languageName = getLanguageNameFromAlias(lang);