Merge pull request #120 from ahodesuka/master

Fix scroll offset when contracting images, #104

4chan_x.user.js

@@ -2991,9 +2991,12 @@
       }
     },
     toggle: function(a) {
-      var thumb;
+      var rect, thumb;
       thumb = a.firstChild;
       if (thumb.hidden) {
+        rect = a.parentNode.getBoundingClientRect();
+        if (rect.top < 0) d.body.scrollTop += rect.top;
+        if (rect.left < 0) d.body.scrollLeft += rect.left;
         return imgExpand.contract(thumb);
       } else {
         return imgExpand.expand(thumb);

script.coffee

@@ -2316,6 +2316,9 @@ imgExpand =
   toggle: (a) ->
     thumb = a.firstChild
     if thumb.hidden
+      rect = a.parentNode.getBoundingClientRect()
+      d.body.scrollTop += rect.top if rect.top < 0
+      d.body.scrollLeft += rect.left if rect.left < 0
       imgExpand.contract thumb
     else
       imgExpand.expand thumb