User:Nikki/AddTermboxLanguage.js

/**
 * This script makes it easier to add/edit labels to an item in a language other
 * than the ones shown by default.
 * It adds an input field below the termbox. Enter the language code of the
 * language you would like to add/edit and press enter. If the language code is
 * supported, it will add an entry for that language to the termbox. If it is
 * not supported, it will show an error message.
 * 
 * To use it, add the following to your common.js:
 * mw.loader.load("//www.wikidata.org/w/index.php?title=User:Nikki/AddTermboxLanguage.js&action=raw&ctype=text/javascript");
 * 
 * @license CC0-1.0
 */
(function () {
	"use strict";

	if (mw.config.get("wgNamespaceNumber") !== 0 && mw.config.get("wgNamespaceNumber") !== 120) {
		// Not a supported entity type
		return;
	}

	function addTermboxLanguage() {
		const translations = {
			"en": {
				"termbox-addlanguage-placeholder": "add language",
				"termbox-addlanguage-unsupported": "The language code \"$1\" is not supported.",
				"termbox-addlanguage-alreadyshown": "Labels for the language code \"$1\" are already shown."
			},
			"de": {
				"termbox-addlanguage-placeholder": "Sprache hinzufügen",
				"termbox-addlanguage-unsupported": "Der Sprachcode „$1“ ist nicht unterstützt.",
				"termbox-addlanguage-alreadyshown": "Bezeichnungen für den Sprachcode „$1“ werden schon gezeigt."
			},
			"nb": {
				"termbox-addlanguage-placeholder": "legg til språk",
				"termbox-addlanguage-unsupported": "Språk-koden \"$1\" er ikke støttet.",
				"termbox-addlanguage-alreadyshown": "Etiketter for språk-koden \"$1\" vises allerede."
			},
		};
		$.i18n().load(translations);

		mw.util.addCSS(`
			.termbox-addlanguage {
				float: right;
			}
			.rtl .termbox-addlanguage {
				float: left;
			}
			.termbox-addlanguage input {
				padding: 0.25em 0.5em;
				margin: 0.25em 0;
			}
		`);

		function addLanguages(text) {
			let langs = text.split(/,/);
			let remainder = [];

			for (let lang of langs) {
				if (!addLanguage(lang)) {
					// Language couldn't be added because it's not supported
					remainder.push(lang);
				}
			}

			// Update the input field to remove all codes that are now shown
			let newtext = remainder.join(",");
			if (newtext !== text) {
				input.value = newtext;
			}
		}

		function addLanguage(lang) {
			lang = lang.trim().toLowerCase();

			// Check whether the language code is in the list of language codes allowed for term languages
			if (!wb.WikibaseContentLanguages.getTermLanguages()._languageCodes.includes(lang)) {
				mw.notify($.i18n("termbox-addlanguage-unsupported", lang), { type: "error" });
				return false;
			}

			// Check that the language isn't already shown
			if (self.options.userLanguages.includes(lang)) {
				mw.notify($.i18n("termbox-addlanguage-alreadyshown", lang), { type: "warn" });
				return true;
			}

			// This determines which languages are not hidden when toggling "All entered languages"
			self.options.userLanguages.push(lang);

			// Add the row for this language
			let $item = listview.addItem(self._getValueForLanguage(lang));
			mw.hook("termbox-language-added").fire(lang);

			if (self.isInEditMode()) {
				lia.liInstance($item).startEditing();
			}

			return true;
		}

		let self = $(".wikibase-entitytermsforlanguagelistview").data("entitytermsforlanguagelistview");
		let listview = $(".wikibase-entitytermsforlanguagelistview").data("entitytermsforlanguagelistview").$listview.data("listview");
		let lia = listview.listItemAdapter();
	
		let input = document.createElement("input");
		input.placeholder = $.i18n("termbox-addlanguage-placeholder");
		input.onkeydown = function (event) {
			if (event.key === "Enter") {
				event.stopPropagation();
				event.preventDefault();
				addLanguages(input.value);
			}
		};

		let span = document.createElement("span");
		span.classList.add("termbox-addlanguage");
		span.insertAdjacentElement("afterbegin", input);

		document.querySelector(".wikibase-entitytermsforlanguagelistview").insertAdjacentElement("afterend", span);
	}

	mw.hook('wikibase.entityPage.entityView.rendered').add(addTermboxLanguage);

})();