From 014c84239abaa09aebca73f72ff515cbe2dc3181 Mon Sep 17 00:00:00 2001
From: Kevin Dungs <kevin@dun.gs>
Date: Sun, 3 Aug 2014 23:04:46 +0200
Subject: [PATCH] Add ObjectStorage module.

---
 js/storage.js | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 js/storage.js

diff --git a/js/storage.js b/js/storage.js
new file mode 100644
index 0000000..d086da9
--- /dev/null
+++ b/js/storage.js
@@ -0,0 +1,25 @@
+'use strict';
+
+/** Allows to save objects to HTML5 local storage.
+ * However, it can only save properties, not functions.
+ */
+var ObjectStorage = (function() {
+  try {
+    var _s = localStorage;
+    return {
+      save: function(key, item) {
+        _s.setItem(key, JSON.stringify(item));
+      },
+      load: function(key) {
+        return JSON.parse(_s.getItem(key));
+      }
+    };
+  } catch (e) {
+    alert('There is no local storage for you.'
+      + ' If you refresh the page, all progress will be lost');
+    return {
+      save: function(key, item) {},
+      load: function(key) { return null; }
+    };
+  };
+});