Wrap around fuzzy finder when at top or bottom

spec/extensions/fuzzy-finder-spec.coffee

@@ -223,16 +223,15 @@ describe 'FuzzyFinder', ->
         expect(finder.find('li:eq(1)')).toHaveClass "selected"
         expect(finder.find('li:eq(2)')).not.toHaveClass "selected"
 
-      it "does not fall off the end or begining of the list", ->
+      it "wraps around when at the end or begining of the list", ->
         expect(finder.find('li:first')).toHaveClass "selected"
+
         finder.miniEditor.trigger keydownEvent('up')
-        expect(finder.find('li:first')).toHaveClass "selected"
-
-        for i in [1..finder.pathList.children().length+2]
-          finder.miniEditor.trigger keydownEvent('down')
-
         expect(finder.find('li:last')).toHaveClass "selected"
 
+        finder.miniEditor.trigger keydownEvent('down')
+        expect(finder.find('li:first')).toHaveClass "selected"
+
     describe "when the fuzzy finder loses focus", ->
       it "detaches itself", ->
         rootView.attachToDom()

src/extensions/fuzzy-finder/fuzzy-finder.coffee

@@ -93,18 +93,22 @@ class FuzzyFinder extends View
     false
 
   moveUp: ->
-    @findSelectedLi()
-      .filter(':not(:first-child)')
-      .removeClass('selected')
-      .prev()
-      .addClass('selected')
+    selected = @findSelectedLi().removeClass('selected')
+
+    if selected.filter(':not(:first-child)').length is 0
+      selected = @pathList.children('li:last')
+    else
+      selected = selected.prev()
+    selected.addClass('selected')
 
   moveDown: ->
-    @findSelectedLi()
-      .filter(':not(:last-child)')
-      .removeClass('selected')
-      .next()
-      .addClass('selected')
+    selected = @findSelectedLi().removeClass('selected')
+
+    if selected.filter(':not(:last-child)').length is 0
+      selected = @pathList.children('li:first')
+    else
+      selected = selected.next()
+    selected.addClass('selected')
 
   findMatches: (query) ->
     fuzzyFilter(@paths, query, maxResults: @maxResults)