Observer to find new elements with i18n attribute

be08e62fc1ae56f23cbbc6802e417cb5c931e36f

Wolfsblvt <wolfsblvt@gmx.de>

public/scripts/i18n.js+53 -17 Viewed

 var localeData = await getLocaleData(localeFile);
 /**
 + * An observer that will check if any new i18n elements are added to the document
 + * @type {MutationObserver}
 + */
 +const observer = new MutationObserver(mutations => {
 +    mutations.forEach(mutation => {
 +        mutation.addedNodes.forEach(node => {
 +            if (node.nodeType === Node.ELEMENT_NODE && node instanceof Element) {
 +                if (node.hasAttribute('data-i18n')) {
 +                    translateElement(node);
 +                }
 +                node.querySelectorAll('[data-i18n]').forEach(element => {
 +                    translateElement(element);
 +                });
 +            }
 +        });
 +        if (mutation.attributeName === 'data-i18n' && mutation.target instanceof Element) {
 +            translateElement(mutation.target);
 +        }
 +    });
 +});
++
 +/**
  * Fetches the locale data for the given language.
  * @param {string} language Language code
  * @returns {Promise<Record<string, string>>} Locale data

     return supportedLang;
+}
 +/**
 + * Translates a given element based on its data-i18n attribute.
 + * @param {Element} element The element to translate
 + */
 +function translateElement(element) {
 +    const keys = element.getAttribute('data-i18n').split(';'); // Multi-key entries are ; delimited
 +    for (const key of keys) {
 +        const attributeMatch = key.match(/\[(\S+)\](.+)/); // [attribute]key
 +        if (attributeMatch) { // attribute-tagged key
 +            const localizedValue = localeData?.[attributeMatch[2]];
 +            if (localizedValue || localizedValue === '') {
 +                element.setAttribute(attributeMatch[1], localizedValue);
 +            }
 +        } else { // No attribute tag, treat as 'text'
 +            const localizedValue = localeData?.[key];
 +            if (localizedValue || localizedValue === '') {
 +                element.textContent = localizedValue;
 +            }
 +        }
 +    }
 +}
++
++
 async function getMissingTranslations() {
     const missingData = [];

     //find all the elements with `data-i18n` attribute
     $root.find('[data-i18n]').each(function () {
 -        //read the translation from the language data
 +        translateElement(this);
 -        const keys = $(this).data('i18n').split(';'); // Multi-key entries are ; delimited
 -        for (const key of keys) {
 -            const attributeMatch = key.match(/\[(\S+)\](.+)/); // [attribute]key
 -            if (attributeMatch) { // attribute-tagged key
 -                const localizedValue = localeData?.[attributeMatch[2]];
 -                if (localizedValue || localizedValue == '') {
 -                    $(this).attr(attributeMatch[1], localizedValue);
 -                }
 -            } else { // No attribute tag, treat as 'text'
 -                const localizedValue = localeData?.[key];
 -                if (localizedValue || localizedValue == '') {
 -                    $(this).text(localizedValue);
 -                }
 -            }
 -        }
     });
     if (root !== document) {

@@ -126,7 +156,6 @@ export function applyLocale(root = document) {
126	156	}
127	157	}
128	158
129		-
130	159	function addLanguagesToDropdown() {
131	160	const uiLanguageSelects = $('#ui_language_select, #onboarding_ui_language_select');
132	161	for (const langObj of langs) { // Set the value to the language code

         location.reload();
     });
 +    observer.observe(document, {
 +        childList: true,
 +        subtree: true,
 +        attributes: true,
 +        attributeFilter: ['data-i18n'],
 +    });
++
     registerDebugFunction('getMissingTranslations', 'Get missing translations', 'Detects missing localization data in the current locale and dumps the data into the browser console. If the current locale is English, searches all other locales.', getMissingTranslations);
     registerDebugFunction('applyLocale', 'Apply locale', 'Reapplies the currently selected locale to the page.', applyLocale);
+}