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/*
This file is part of GNU Taler
(C) 2022 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
/**
*
* @author Sebastian Javier Marchano (sebasjm)
*/
import { Fragment, h, VNode } from "preact";
import { useEffect, useState } from "preact/hooks";
import { useTranslationContext } from "@gnu-taler/web-util/lib/index.browser";
import { strings as messages } from "../../i18n/strings.js";
type LangsNames = {
[P in keyof typeof messages]: string;
};
const names: LangsNames = {
es: "Español [es]",
en: "English [en]",
fr: "Français [fr]",
de: "Deutsch [de]",
sv: "Svenska [sv]",
it: "Italiano [it]",
};
function getLangName(s: keyof LangsNames | string): string {
if (names[s]) return names[s];
return String(s);
}
// FIXME: explain "like py".
export function LangSelectorLikePy(): VNode {
const [updatingLang, setUpdatingLang] = useState(false);
const { lang, changeLanguage } = useTranslationContext();
const [hidden, setHidden] = useState(true);
useEffect(() => {
function bodyKeyPress(event: KeyboardEvent) {
if (event.code === "Escape") setHidden(true);
}
function bodyOnClick(event: Event) {
setHidden(true);
}
document.body.addEventListener("click", bodyOnClick);
document.body.addEventListener("keydown", bodyKeyPress as any);
return () => {
document.body.removeEventListener("keydown", bodyKeyPress as any);
document.body.removeEventListener("click", bodyOnClick);
};
}, []);
return (
<Fragment>
<button
name="language"
onClick={(ev) => {
setHidden((h) => !h);
ev.stopPropagation();
}}
>
{getLangName(lang)}
</button>
<div id="lang" class={hidden ? "hide" : ""}>
<div style="position: relative; overflow: visible;">
<div
class="nav"
style="position: absolute; max-height: 60vh; overflow-y: scroll"
>
{Object.keys(messages)
.filter((l) => l !== lang)
.map((l) => (
<a
key={l}
href="#"
class="navbtn langbtn"
value={l}
onClick={() => {
changeLanguage(l);
setUpdatingLang(false);
}}
>
{getLangName(l)}
</a>
))}
<br />
</div>
</div>
</div>
</Fragment>
);
}
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