MediaWiki:Gadget-hideConversionTab.js

/**
 * The script used to simplify the language options for the [Minerva
 * Neue](https://www.mediawiki.org/wiki/Skin:Minerva_Neue) skin.
 *
 * @author Jason Kwok (https://zh.wikipedia.org/wiki/User:JasonHK)
 */
(function (mw, $) {
	$(function() {
		var HIDDEN_LANGUAGE_SELECTOR = '.zh, .zh-hans, .zh-hant';

		if ((mw.config.get('skin') === 'minerva') && (typeof MutationObserver === 'function')) {
			var observer = new MutationObserver(function(records) {
				$.each(records, function(_, record) {
					$(record.addedNodes)
						.filter('.language-searcher')
						.find(HIDDEN_LANGUAGE_SELECTOR)
						.parent()
						.hide();
				})
			});

			observer.observe(document.documentElement || document.body, {
				childList: true,
				subtree: true
			})
		}
	})
})(mw, jQuery);