From: Scott Worley <scottworley@scottworley.com>
Date: Fri, 28 Feb 2014 07:15:59 +0000 (-0800)
Subject: Keep a local picsorter_deleted too.
X-Git-Url: http://git.scottworley.com/picsort/commitdiff_plain/d1309d5a15f015c52ff48ea52b028f47ca7723e8

Keep a local picsorter_deleted too.

Don't unpack it from localStorage every single time it is needed.
Read it in once and write it back when it changes.

Note: This would make updates from multiple tabs running picsorter
on the same domain clobber each other's updates.  So don't run
multiple picsorters.
---

diff --git a/picsorter.js b/picsorter.js
index c3af639..e44c22c 100644
--- a/picsorter.js
+++ b/picsorter.js
@@ -5,6 +5,7 @@ var zoom = "sm/";
 if (!("picsorter_deleted" in localStorage)) {
   localStorage.picsorter_deleted = JSON.stringify({});
 }
+var picsorter_deleted = JSON.parse(localStorage.picsorter_deleted);
 
 function setpic() {
   $("#pic").attr("src", zoom + exposure + "/" + files[input_index]);
@@ -19,22 +20,19 @@ function toggle_zoom() {
 }
 
 function move_to_nondeleted(direction) {
-  var deleted = JSON.parse(localStorage.picsorter_deleted);
   do {
     input_index += direction;
-  } while (files[input_index] in deleted);
+  } while (files[input_index] in picsorter_deleted);
 }
 
 function mark_deleted() {
-  var deleted = JSON.parse(localStorage.picsorter_deleted);
-  deleted[files[input_index]] = 1;
-  localStorage.picsorter_deleted = JSON.stringify(deleted);
+  picsorter_deleted[files[input_index]] = 1;
+  localStorage.picsorter_deleted = JSON.stringify(picsorter_deleted);
 }
 
 function mark_not_deleted() {
-  var deleted = JSON.parse(localStorage.picsorter_deleted);
-  delete deleted[files[input_index]];
-  localStorage.picsorter_deleted = JSON.stringify(deleted);
+  delete picsorter_deleted[files[input_index]];
+  localStorage.picsorter_deleted = JSON.stringify(picsorter_deleted);
 }
 
 $(function() {