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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| // mostly taken from https://github.com/TransforMap/transformap-viewer/blob/gh-pages/scripts/map.js | ||
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| function getLangs () { | ||
| var language = window.navigator.languages ? window.navigator.languages[0] : (window.navigator.language || window.navigator.userLanguage); | ||
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| if(typeof language === 'string') | ||
| language = [ language ]; | ||
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| // we need to have the following languages: | ||
| // browserlang | ||
| // a short one (de instead of de-AT) if not present | ||
| // en as fallback if not present | ||
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| for(var i = 0; i < language.length; i++) { | ||
| if(language[i].match(/-/)) { | ||
| var short_lang = language[i].match(/^([a-zA-Z]*)-/)[1]; | ||
| if(language.indexOf(short_lang) == -1) { | ||
| language.push(short_lang); | ||
| continue; | ||
| } | ||
| } | ||
| } | ||
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| if(language.indexOf("en") == -1) | ||
| language.push("en"); | ||
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| console.log(language); | ||
| return language; | ||
| } | ||
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| function setFallbackLangs() { | ||
| fallback_langs = []; | ||
| if(current_lang != "en") { | ||
| for(var i=0; i < browser_languages.length; i++) { | ||
| var abbr = browser_languages[i]; | ||
| if(current_lang != abbr) | ||
| fallback_langs.push(abbr); | ||
| } | ||
| } | ||
| console.log("new fallback langs: " + fallback_langs.join(",") + "."); | ||
| } | ||
|
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| function resetLang() { | ||
| current_lang = "en"; | ||
| for(var i=0; i < browser_languages.length; i++) { | ||
| var abbr = browser_languages[i]; | ||
| if(abbr_langnames[abbr]) { | ||
| current_lang = abbr; | ||
| break; | ||
| } | ||
| } | ||
| switchToLang(current_lang); | ||
| } | ||
|
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| /* get languages for UI from our Wikibase, and pick languages that are translated there */ | ||
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| var supported_languages = [], | ||
| langnames = [], | ||
| abbr_langnames = {}, | ||
| langnames_abbr = {}; | ||
| function initializeLanguageSwitcher(returned_data){ | ||
| var lang; | ||
| for(lang in returned_data.entities.Q5.labels) { //Q5 is arbitrary. Choose one that gets translated for sure. | ||
| supported_languages.push(lang); | ||
| } | ||
| var langstr = supported_languages.join("|"); | ||
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| var langstr_query = | ||
| 'SELECT ?lang ?langLabel ?abbr ' + | ||
| 'WHERE' + | ||
| '{' + | ||
| '?lang wdt:P218 ?abbr;' + | ||
| 'FILTER regex (?abbr, "^('+langstr+')$").' + | ||
| 'SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }' + | ||
| '}'; | ||
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| langstr_query = 'https://query.wikidata.org/bigdata/namespace/wdq/sparql?query=' +encodeURIComponent(langstr_query) + "&format=json"; | ||
| $.getJSON(langstr_query, function (langstrings){ | ||
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| langstrings.results.bindings.forEach(function (item) { | ||
| abbr_langnames[item.abbr.value] = item.langLabel.value; | ||
| langnames_abbr[item.langLabel.value] = item.abbr.value; | ||
| langnames.push(item.langLabel.value); | ||
| }); | ||
| langnames.sort(); | ||
|
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| resetLang(); | ||
| setFallbackLangs(); | ||
|
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| langnames.forEach(function (item) { | ||
| var langcode = langnames_abbr[item]; | ||
| var is_default = (langcode == current_lang) ? " class=default" : ""; | ||
| console.log("adding lang '" + langcode + "' (" + item + ")"); | ||
| $("#languageSelector ul").append("<li targetlang=" + langcode + is_default + " onClick='window.translations.switchToLang(\""+langcode+"\");'>"+item+"</li>"); | ||
| }); | ||
| }); | ||
| } | ||
|
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| function switchToLang(lang) { | ||
| $("#languageSelector li.default").removeClass("default"); | ||
| $("#languageSelector li[targetlang="+lang+"]").addClass("default"); | ||
| current_lang = lang; | ||
| window.translations.current_lang = lang; | ||
| window.translations.fetchAndSetNewTranslation(lang); | ||
| setFallbackLangs(); | ||
| /* | ||
| //updateTranslatedTexts(); | ||
| if(! dictionary[lang]) { | ||
| var dict_uri = "https://raw.githubusercontent.com/TransforMap/transformap-viewer-translations/master/json/"+lang+".json"; | ||
| $.ajax({ | ||
| url: dict_uri, | ||
| context: { lang: current_lang }, | ||
| success: function(returned_data) { | ||
| var trans_jsonobj = JSON.parse(returned_data); | ||
| if(! dictionary[this.lang]) | ||
| dictionary[this.lang] = {}; | ||
| for (item in trans_jsonobj) { | ||
| var index = reverse_dic[item]; | ||
| dictionary[this.lang][index] = trans_jsonobj[item]; | ||
| } | ||
| console.log("successfully fetched " + this.lang); | ||
| //updateTranslatedTexts(); | ||
| } | ||
| }); | ||
| } | ||
| // As rebuilding the filters does not yet support advanced mode by default, | ||
| // we switch to simple mode, as language switching is a very rare case. | ||
| if(getFilterMode() == "advanced") | ||
| toggleAdvancedFilterMode(); | ||
| resetFilter(); | ||
| setFilterLang(lang); | ||
| */ | ||
| console.log("new lang:" +lang); | ||
| } | ||
|
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| // if wishedLang is in supported, OK | ||
| // shorten wishedLang and see if in supported | ||
| // take fallback | ||
| function selectAllowedLang(wishedLang) { | ||
| console.log("selectAllowedLang(" + wishedLang + ") called") | ||
| if(wishedLang) { | ||
| if(supported_languages.indexOf(wishedLang) != -1) { | ||
| current_lang = wishedLang | ||
| return current_lang | ||
| } | ||
| console.log("not in supported, try shorten") | ||
| var matches = wishedLang.match(/^([a-zA-Z]*)-/) | ||
| if(matches && matches[1]) { | ||
| var short_lang = matches[1]; | ||
| console.log("short: " + short_lang) | ||
| if(short_lang) { | ||
| if(supported_languages.indexOf(short_lang) != -1) { | ||
| current_lang = short_lang | ||
| console.log("current_lang set to " + short_lang) | ||
| return current_lang | ||
| } | ||
| } | ||
| } | ||
| } | ||
| setFallbackLangs() | ||
| if(fallback_langs[0]) { | ||
| if(supported_languages.indexOf(fallback_langs[0]) != -1) { | ||
| current_lang = fallback_langs[0] | ||
| return current_lang | ||
| } | ||
| } | ||
| current_lang = 'en' | ||
| return current_lang | ||
| } | ||
|
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| var browser_languages = getLangs(), | ||
| current_lang = browser_languages[0], | ||
| fallback_langs = []; | ||
|
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| module.exports = { | ||
| getLangs: getLangs, | ||
| initializeLanguageSwitcher: initializeLanguageSwitcher, | ||
| supported_languages: supported_languages, | ||
| browser_languages: browser_languages, | ||
| current_lang: current_lang, | ||
| switchToLang: switchToLang, | ||
| selectAllowedLang: selectAllowedLang | ||
| } |
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