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Generate alternate url for different locales so search engine could find them all.

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PanAeon 2018-10-22 16:47:20 +01:00
parent c801f9ed46
commit 89f3a5177b
2 changed files with 26 additions and 1 deletions
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20
src/js/app/index.js
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@ -1,6 +1,7 @@
var Backbone = require('backbone');
var EventEmitter = require('events').EventEmitter;
var React = require('react');
var _ = require('underscore');
var assign = require('object-assign');
var util = require('../util');
@ -86,6 +87,22 @@ var vcsModeRefresh = function(eventData) {
$('body').toggleClass('hgMode', !isGit);
};
var insertAlternateLinks = function(pageId) {
// For now pageId is null, which would link to the main page.
// In future if pageId is provided this method should link to a specific page
// The value of the hreflang attribute identifies the language (in ISO 639-1 format)
// and optionally a region (in ISO 3166-1 Alpha 2 format) of an alternate URL
var altLinks = _.map(LocaleStore.getSupportedLocales(), function(langCode) {
var url = "https://learngitbranching.js.org/?locale=" + langCode;
return '<link rel="alternate" hreflang="'+langCode+'" href="' + url +'" />';
});
var defaultUrl = "https://learngitbranching.js.org/?locale=" + LocaleStore.getDefaultLocale();
altLinks.push('<link rel="alternate" hreflang="x-default" href="' + defaultUrl +'" />');
$('head').prepend(altLinks);
};
var intlRefresh = function() {
if (!window.$) { return; }
$('span.intl-aware').each(function(i, el) {
@ -249,6 +266,8 @@ var initDemo = function(sandbox) {
tryLocaleDetect();
}
insertAlternateLinks();
if (params.command) {
var command = unescape(params.command);
sandbox.mainVis.customEvents.on('gitEngineReady', function() {
@ -328,4 +347,3 @@ exports.getLevelDropdown = function() {
};
exports.init = init;