From a24c632cbf4e69aabdcf4169f065147c57a9c0c3 Mon Sep 17 00:00:00 2001
From: Martin Edenhofer <me@edenhofer.de>
Date: Tue, 27 Nov 2012 03:07:59 +0100
Subject: [PATCH] Some improvements for local storage on IE.

---
 .../app/lib/app_post/store.js.coffee          | 34 ++++++++++++++++---
 1 file changed, 29 insertions(+), 5 deletions(-)

diff --git a/app/assets/javascripts/app/lib/app_post/store.js.coffee b/app/assets/javascripts/app/lib/app_post/store.js.coffee
index 3507d5ead..cbab3ac62 100644
--- a/app/assets/javascripts/app/lib/app_post/store.js.coffee
+++ b/app/assets/javascripts/app/lib/app_post/store.js.coffee
@@ -30,13 +30,27 @@ class App.Store
 
 # The actual Singleton class
 class _Singleton
+  store: {}
+  constructor: ->
+    @support = true
+    if !window.localStorage
+      @support = false
+#    @support = false
 
   # write to local storage
   write: (key, value) ->
-    localStorage.setItem( key, JSON.stringify( value ) )
+    @store[key] = value
+    return if !@support
+    try
+      localStorage.setItem( key, JSON.stringify( value ) )
+    catch e
+      if e is QUOTA_EXCEEDED_ERR
+        # do something nice to notify your users
+        App.Log.log 'App.Store', 'error', 'Local storage quote exceeded, please relogin!'
 
   # get item
   get: (key) ->
+    return @store[key] if !@support
     value = localStorage.getItem( key )
     return if !value
     object = JSON.parse( value )
@@ -44,18 +58,28 @@ class _Singleton
 
   # delete item
   delete: (key) ->
+    @store.delete key
+    return if !@support
     localStorage.removeItem( key )
 
   # clear local storage
   clear: ->
+    @store = {}
     localStorage.clear()
 
   # return list of all keys
   list: ->
     list = []
-    logLength = localStorage.length-1;
-    for count in [0..logLength]
-      key = localStorage.key( count )
-      if key
+    if !@support
+      for key of @store
         list.push key
+      return list
+
+#    logLength = localStorage.length-1;
+#    for count in [0..logLength]
+#      key = localStorage.key( count )
+#      if key
+#        list.push key
+    for key of window.localStorage
+      list.push key
     list
\ No newline at end of file