M layouts/partials/head.html → layouts/partials/head.html

@@ -6,5 +6,9 @@ <nav>
 		{{ range .Site.Menus.main }}
 		<a href="{{ .URL }}">{{ .Name }}</a>
 		{{ end }}
+		{{ if eq .Site.Params.mode "toggle" -}}
+        | <a id="dark-mode-toggle" onclick="toggleTheme()" href=""></a>
+		<script src="{{ .Site.BaseURL }}js/themetoggle.js"></script>
+		{{ end }}
 	</nav>
 </header>

M layouts/partials/header.html → layouts/partials/header.html

@@ -39,9 +39,9 @@
 	{{ $style := resources.Get "css/main.css" | fingerprint }}
 	<link rel="stylesheet" type="text/css" media="screen" href="{{ $style.Permalink }}" />
 
-	{{- if or (eq .Site.Params.mode "auto") (eq .Site.Params.mode "dark") -}}
+	{{- if or (eq .Site.Params.mode "auto") (eq .Site.Params.mode "dark") (eq .Site.Params.mode "toggle") -}}
 		{{ $darkstyle := resources.Get "css/dark.css" | fingerprint }}
-		<link rel="stylesheet" type="text/css" href="{{ $darkstyle.Permalink }}" {{ if eq .Site.Params.mode "auto" }}media="(prefers-color-scheme: dark)"{{ end }} />
+		<link id="darkModeStyle" rel="stylesheet" type="text/css" href="{{ $darkstyle.Permalink }}" {{ if eq .Site.Params.mode "auto" }}media="(prefers-color-scheme: dark)"{{ end }} {{ if eq .Site.Params.mode "toggle" }}disabled{{ end }} />
 	{{ end }}
 	
 	<!-- Custom CSS style get applied last -->

A static/js/themetoggle.js

@@ -0,0 +1,23 @@
+function setTheme(mode) {
+    localStorage.setItem("theme-storage", mode);
+    if (mode === "dark") {
+        document.getElementById("darkModeStyle").disabled=false;
+        document.getElementById("dark-mode-toggle").innerHTML = "<i data-feather=\"sun\"></i>";
+        feather.replace()
+    } else if (mode === "light") {
+        document.getElementById("darkModeStyle").disabled=true;
+        document.getElementById("dark-mode-toggle").innerHTML = "<i data-feather=\"moon\"></i>";
+        feather.replace()
+    }
+}
+
+function toggleTheme() {
+    if (localStorage.getItem("theme-storage") === "light") {
+        setTheme("dark");
+    } else if (localStorage.getItem("theme-storage") === "dark") {
+        setTheme("light");
+    }
+}
+
+var savedTheme = localStorage.getItem("theme-storage") || "light";
+setTheme(savedTheme);