How can I use the language selector (number 2 at image) of Patternfly 
At docs, the language selector dropdown appears in all the examples. However I can't figure out how to use it. I guess there should exist a property on LoginPage to render it but I can't find it.
I have checked the list of properties in the own code too, with no luck.
CodePudding user response：
Here you can find full example, with code example and all available props described.
CodePudding user response：
I think they just help you with design you should do the rest
Use i18n to translate. https://react.i18next.com/latest/using-with-hooks
Check here for example https://codepen.io/diogo-simoes/pen/JXRORg
/*
* I18n.js
* =======
*
* Simple localization util.
* 1. Store your localized labels in json format: `localized-content.json`
* 2. Write your markup with key references using `data-i18n` attributes.
* 3. Explicitly invoke a traverse key resolver: `i18n.localize()`
* OR
* Change the language, and the contents will be refreshed: `i18n.lang('en')`
*
* This util relies on jQuery to work. I would recommend using the latest version
* available (1.12.x or 2.1.4 ), although this will probably run with any older
* version since it is only taking advantage of `$.getJSON()` and the jQuery
* selector function `$()`.
*
* © 2016 Diogo Simões - diogosimoes.com
*
*/
var demoJson = {
"demo": {
"title": {
"pt": "Exemplo de uso do i18n.js",
"en": "Simple demo for i18n.js",
"es": "¡Una cerveza por favor!"
},
"text": {
"pt": "Este exemplo serve apenas para ilustrar os diferentes tipos de atributos de texto que podem ser localizados no cliente com a ajuda do i18n.js",
"en": "This demo's only purpose is to show the different text attributes that can be localized with the help of i18n.js",
"es": "Si i18n.js era español entonces sería de puta madre. Ahora así, la han cagado!"
},
"form": {
"name": {
"pt": "Zé dos Anzóis",
"en": "John Doe",
"es": "Fulano de Tal"
},
"email": {
"pt": "[email protected]",
"en": "[email protected]",
"es": "[email protected]"
},
"submit": {
"pt": "Enviar",
"en": "Send",
"es": "¡Tío!"
}
}
}
};
(function () {
this.I18n = function (defaultLang) {
var lang = defaultLang || 'en';
this.language = lang;
(function (i18n) {
i18n.contents = demoJson;
i18n.contents.prop = function (key) {
var result = this;
var keyArr = key.split('.');
for (var index = 0; index < keyArr.length; index ) {
var prop = keyArr[index];
result = result[prop];
}
return result;
};
i18n.localize();
})(this);
};
this.I18n.prototype.hasCachedContents = function () {
return this.contents !== undefined;
};
this.I18n.prototype.lang = function (lang) {
if (typeof lang === 'string') {
this.language = lang;
}
this.localize();
return this.language;
};
this.I18n.prototype.localize = function () {
var contents = this.contents;
if (!this.hasCachedContents()) {
return;
}
var dfs = function (node, keys, results) {
var isLeaf = function (node) {
for (var prop in node) {
if (node.hasOwnProperty(prop)) {
if (typeof node[prop] === 'string') {
return true;
}
}
}
}
for (var prop in node) {
if (node.hasOwnProperty(prop) && typeof node[prop] === 'object') {
var myKey = keys.slice();
myKey.push(prop);
if (isLeaf(node[prop])) {
//results.push(myKey.reduce((prev, current) => prev '.' current)); //not supported in older mobile broweser
results.push(myKey.reduce( function (previousValue, currentValue, currentIndex, array) {
return previousValue '.' currentValue;
}));
} else {
dfs(node[prop], myKey, results);
}
}
}
return results;
};
var keys = dfs(contents, [], []);
for (var index = 0; index < keys.length; index ) {
var key = keys[index];
if (contents.prop(key).hasOwnProperty(this.language)) {
$('[data-i18n="' key '"]').text(contents.prop(key)[this.language]);
$('[data-i18n-placeholder="' key '"]').attr('placeholder', contents.prop(key)[this.language]);
$('[data-i18n-value="' key '"]').attr('value', contents.prop(key)[this.language]);
} else {
$('[data-i18n="' key '"]').text(contents.prop(key)['en']);
$('[data-i18n-placeholder="' key '"]').attr('placeholder', contents.prop(key)['en']);
$('[data-i18n-value="' key '"]').attr('value', contents.prop(key)['en']);
}
}
};
}).apply(window);
$( document ).ready( function () {
var i18n = new I18n();
i18n.localize();
$('.lang-picker #english').addClass('selected');
$('.lang-picker #portuguese').on('click', function () {
i18n.lang('pt');
selectLang($(this));
})
$('.lang-picker #english').on('click', function () {
i18n.lang('en');
selectLang($(this));
})
$('.lang-picker #spanish').on('click', function () {
i18n.lang('es');
selectLang($(this));
})
function selectLang (picker) {
$('.lang-picker li').removeClass('selected');
picker.addClass('selected');
}
});html {
background-color: #2f2f2f;
}
body {
width: 35rem;
margin: 10rem auto 0 auto;
background-color: #f0f0f0;
border-radius: 10px;
}
body > div:first-of-type {
width: 25rem;
margin: 0 auto;
}
.lang-picker {
padding: 2rem 0 0 0;
text-align: center;
}
.lang-picker li {
list-style: none;
display: inline-block;
font: 400 14px/20px sans-serif;
color: #393939;
cursor: pointer;
}
.lang-picker li.selected {
font-weight: 900;
color: #496992;
}
h1 {
font: 400 28px/48px sans-serif;
color: #393939;
}
p {
font: 400 18px/22px sans-serif;
color: #393939;
}
form {
padding-bottom: 2rem;
}
form input{
display: block;
margin: 8px 0;
font: 400 13px sans-serif;
}
form input[type="text"] {
padding: 4px 8px;
width: 15rem;
}
form input[type="submit"] {
font: 100 15px sans-serif;
padding: 8px 16px;
color: #f0f0f0;
background-color: #496992;
border: none;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.2.4/jquery.min.js"></script>
<body>
<div>
<div>
<ul >
<li id="portuguese">português</li>
<li id="english">english</li>
<li id="spanish">español</li>
</ul>
</div>
<h1 data-i18n="demo.title"></h1>
<p data-i18n="demo.text"></p>
<form>
<input type="text" data-i18n-placeholder="demo.form.name">
<input type="text" data-i18n-placeholder="demo.form.email">
<input type="submit" data-i18n-value="demo.form.submit">
</form>
</div>
</body>or
see here how they used it https://github.com/antares-sql/antares/tree/master/src/renderer/i18n