init

themes/hugoplate/layouts/partials/components/language-switcher.html

@@ -0,0 +1,35 @@
+<!-- Language List -->
+{{ if hugo.IsMultilingual }}
+{{ $class := .Class }}
+{{ $context := .Context }}
+{{ $pageLang := $context.Lang }}
+{{ $pageTranslations := newScratch }}
+{{/* First, fill all translations of the Home page (failsafe) */}}
+{{ range site.Home.AllTranslations }}
+  {{ $pageTranslations.Set .Language.Lang .Permalink }}
+{{ end }}
+{{/* Second, if a translation exists for the current page for the target language, replace failsafe */}}
+{{ range $context.AllTranslations }}
+  {{ $pageTranslations.Set .Language.Lang .Permalink }}
+{{ end }}
+
+<select class="{{ $class }}" onchange="location = this.value">
+  {{ range site.Languages }}
+    {{/* Fill the dropdown with all known languages */}}
+    {{ $link := $pageTranslations.Get .Lang }}
+    {{ if $link }}
+      <option
+        id="{{ .Lang }}"
+        value="{{ $link }}"
+      {{ if eq .Lang $pageLang }}
+        selected
+      {{ end }}
+        >
+        {{ .LanguageName }}
+      </option>
+    {{ else }}
+      {{/* if we can't safely redirect the user to the translated page or at least to translated home, discard the language from options */}}
+    {{ end }}
+  {{ end }}
+</select>
+{{ end }}