Merge pull request #39 from S1SYPHOS/master

Add alternate language links

Author: jonathanmuth

snippets/meta_information.php

@@ -11,7 +11,7 @@
       'quality' => 80,
       'crop'    => true
     ];
-    
+
   if(option('diesdasdigital.meta-knight.siteTitleAsHomePageTitle', false) && $page->isHomePage()) {
     $full_title = $site->meta_title()->or($site->title());
   } elseif(option('diesdasdigital.meta-knight.pageTitleAsHomePageTitle', false) && $page->isHomePage()) {
@@ -25,9 +25,9 @@
 ?>
 
 <?php // Basic Meta Information ?>
-  
+
 <?php // Schema ?>
-  
+
 <style itemscope itemtype="https://schema.org/WebSite" itemref="schema_name schema_description schema_image"></style>
 
 <?php // Page Title ?>
@@ -46,13 +46,20 @@
 <meta id="schema_description" itemprop="description" content="<?= $page->meta_description()->or($site->meta_description()) ?>">
 
 <?php // Canonical URL ?>
-  
+
 <?php if ($page->meta_canonical_url()->isNotEmpty()): ?>
   <link rel="canonical" href="<?= $page->meta_canonical_url() ?>" />
 <?php else: ?>
   <link rel="canonical" href="<?= $page->canonicalUrl() ?>" />
 <?php endif; ?>
 
+<?php // Alternate languages ?>
+
+<?php foreach ($kirby->languages() as $language): ?>
+  <link rel="alternate" hreflang="<?= strtolower(html($language->code())) ?>" href="<?= $page->url($language->code()) ?>">
+<?php endforeach; ?>
+<link rel="alternate" hreflang="x-default" href="<?= $page->url($kirby->defaultLanguage()->code()) ?>">
+
 <?php // Image ?>
 
 <?php if ($meta_image = $page->meta_image()->toFile() ?? $site->meta_image()->toFile()): ?>