Allow light/dark/auto rather than just light/dark for theme

Replaces the theme switcher in the nav bar with a less intrusive link at the
bottom.

Closes #125

1 files changed, 9 insertions, 0 deletions

diff --git a/public/static/js/travelynx-actions.js b/public/static/js/travelynx-actions.js
index 52ca482..d20eab7 100644
--- a/public/static/js/travelynx-actions.js
+++ b/public/static/js/travelynx-actions.js
@@ -9,6 +9,15 @@ var j_arrival = 0;
 var j_dest = '';
 var j_stops = [];
 var j_token = '';
+
+function setTheme(theme) {
+	localStorage.setItem('theme', theme);
+	if (!otherTheme.hasOwnProperty(theme)) {
+		theme = window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
+	}
+	addStyleSheet(theme, 'theme');
+}
+
 function upd_journey_data() {
 	$('.countdown').each(function() {
 		const journey_token = $(this).data('token');