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add translation selector and fix translation of data-attributes

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This commit is contained in:
schlagmichdoch 2023-08-30 14:57:40 +02:00
parent 19f56a8499
commit 17afa18d84
18 changed files with 312 additions and 68 deletions
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49
public_included_ws_fallback/scripts/localization.js
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@ -5,12 +5,19 @@ class Localization {
Localization.translations = {};
Localization.defaultTranslations = {};
const initialLocale = Localization.supportedOrDefault(navigator.languages);
Localization.systemLocale = Localization.supportedOrDefault(navigator.languages);
Localization.setLocale(initialLocale)
let storedLanguageCode = localStorage.getItem("language-code");
Localization.initialLocale = storedLanguageCode && Localization.isSupported(storedLanguageCode)
? storedLanguageCode
: Localization.systemLocale;
Localization.setTranslation(Localization.initialLocale)
.then(_ => {
Localization.translatePage();
})
console.log("Initial translation successful.");
Events.fire("translation-loaded");
});
}
static isSupported(locale) {
@ -21,10 +28,20 @@ class Localization {
return locales.find(Localization.isSupported) || Localization.defaultLocale;
}
static async setTranslation(locale) {
if (!locale) locale = Localization.systemLocale;
await Localization.setLocale(locale)
await Localization.translatePage();
console.log("Page successfully translated",
`System language: ${Localization.systemLocale}`,
`Selected language: ${locale}`
);
}
static async setLocale(newLocale) {
if (newLocale === Localization.locale) return false;
const isFirstTranslation = !Localization.locale
Localization.defaultTranslations = await Localization.fetchTranslationsFor(Localization.defaultLocale);
@ -34,10 +51,14 @@ class Localization {
Localization.locale = newLocale;
Localization.translations = newTranslations;
}
if (isFirstTranslation) {
Events.fire("translation-loaded");
}
static getLocale() {
return Localization.locale;
}
static isSystemLocale() {
return !localStorage.getItem('language-code');
}
static async fetchTranslationsFor(newLocale) {
@ -48,7 +69,7 @@ class Localization {
return await response.json();
}
static translatePage() {
static async translatePage() {
document
.querySelectorAll("[data-i18n-key]")
.forEach(element => Localization.translateElement(element));
@ -63,10 +84,14 @@ class Localization {
if (attr === "text") {
element.innerText = Localization.getTranslation(key);
} else {
element.setAttribute(attr, Localization.getTranslation(key, attr));
if (attr.startsWith("data-")) {
let dataAttr = attr.substring(5);
element.dataset.dataAttr = Localization.getTranslation(key, attr);
} {
element.setAttribute(attr, Localization.getTranslation(key, attr));
}
}
}
}
static getTranslation(key, attr, data, useDefault=false) {