From 6908e297f66c0d5ddf12298bf9bf028ca0261d0d Mon Sep 17 00:00:00 2001
From: Philipp Oppermann <dev@phil-opp.com>
Date: Mon, 17 Feb 2020 14:52:15 +0100
Subject: [PATCH] Make language selectors of browser supported languages
 visible

---
 blog/static/js/main.js | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/blog/static/js/main.js b/blog/static/js/main.js
index dfa1dd4d..564a7d18 100644
--- a/blog/static/js/main.js
+++ b/blog/static/js/main.js
@@ -1,4 +1,6 @@
 window.onload = function() {
+  show_lang_selector();
+
   var container = document.querySelector('#toc-aside');
 
   if (container != null) {
@@ -61,3 +63,19 @@ function toc_scroll_position(container) {
     current_toc_item.classList.add("active");
   }
 }
+
+function show_lang_selector() {
+  var show_lang_selector = false;
+  for (language_selector of document.querySelectorAll('#language-selector li')) {
+    var lang = language_selector.getAttribute("data-lang-switch-to");
+    this.console.log(lang)
+    if (this.navigator.languages.includes(lang)) {
+      this.console.log("supported!");
+      language_selector.classList.remove("hidden");
+      show_lang_selector = true
+    }
+  }
+  if (show_lang_selector) {
+    document.querySelector("#language-selector").classList.remove("hidden")
+  }
+}