From c4177abaaf62f11ccd94cebcee612e97c34c995e Mon Sep 17 00:00:00 2001
From: Cryptkeeper <hello@cryptkpr.me>
Date: Mon, 1 Feb 2016 05:20:25 -0600
Subject: [PATCH] Start work on saving graph controls

---
 assets/js/site.js |  4 ++++
 assets/js/util.js | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/assets/js/site.js b/assets/js/site.js
index 12093b6..10d2f5a 100644
--- a/assets/js/site.js
+++ b/assets/js/site.js
@@ -460,9 +460,13 @@ $(document).ready(function() {
             delete hiddenGraphData[serverIp];
         }
 
+        // Redraw the graph
         historyPlot.setData(convertGraphData(displayedGraphData));
         historyPlot.setupGrid();
 
         historyPlot.draw();
+
+        // Update our localStorage
+        saveGraphControls();
     });
 });
diff --git a/assets/js/util.js b/assets/js/util.js
index af6420b..5b83b60 100644
--- a/assets/js/util.js
+++ b/assets/js/util.js
@@ -2,6 +2,24 @@ var MISSING_FAVICON_BASE64 = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAA
 
 var tooltip = $('#tooltip');
 
+function saveGraphControls(displayedServers) {
+	if (typeof(localStorage) !== undefined) {
+		var json = JSON.stringify(displayedServers);
+
+		localStorage.setItem('displayedServers', json);
+	}
+}
+
+function loadGraphControls() {
+	if (typeof(localStorage) !== undefined) {
+		var item = localStorage.getItem('displayedServers');
+
+		if (item) {
+			return JSON.parse(item);
+		}
+	}
+}
+
 function getTimestamp(ms, timeOnly) {
     var date = new Date(0);