deploy: 9ab6341fe4

js/auto_darkmode.js

@@ -0,0 +1,63 @@
+function setCookie(name,value,days) {
+    var expires = "";
+    if (days) {
+        var date = new Date();
+        date.setTime(date.getTime() + (days*24*60*60*1000));
+        expires = "; expires=" + date.toUTCString();
+    }
+    document.cookie = name + "=" + (value || "")  + expires + "; path=/";
+}
+function getCookie(name) {
+    var nameEQ = name + "=";
+    var ca = document.cookie.split(';');
+    for(var i=0;i < ca.length;i++) {
+        var c = ca[i];
+        while (c.charAt(0)==' ') c = c.substring(1,c.length);
+        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
+    }
+    return null;
+}
+
+function getDarkmodeSetting() {
+    switch(getCookie("darkmode")) {
+        case "true":
+            return true;
+        case "false":
+            return false;
+        default:
+            return null;
+    }
+}
+
+function setDarkmodeSetting(value) {
+    if (value) {
+        setCookie("darkmode", "true", 100);
+    } else {
+        setCookie("darkmode", "false", 100);
+    }
+}
+
+function switchDarkmodeSetting() {
+    const darkmode = getDarkmodeSetting();
+    switch(darkmode) {
+        case true:
+            setDarkmodeSetting(false);
+            break;
+        case false:
+            setDarkmodeSetting(true);
+            break;
+        default:
+            setDarkmodeSetting(true);
+            break;
+    } 
+}
+
+
+const check_darkmode = getDarkmodeSetting();
+const darkmode_prefer = window.matchMedia('(prefers-color-scheme: dark)').matches;
+if (darkmode_prefer && check_darkmode === null) {
+    autoDarkMode();
+    setDarkmodeSetting(true);
+} else if (check_darkmode) {
+    autoDarkMode();
+}