Updated the typeahead directive to cache queries.

brewman/brewman/static/offline.appcache

@@ -1,6 +1,6 @@
 CACHE MANIFEST
       
-# version 2013-05-18.1
+# version 2013-05-18.2
 
 CACHE:
 /partial/404.html

brewman/brewman/static/scripts/angular_directive.js

@@ -5,13 +5,18 @@ overlord_directive.directive('ngAutocomplete', ['$q', '$parse', 'DeepLabel', fun
     return {
         restrict: 'A',
         link: function (scope, element, attrs, ngModel) {
-            var labels = [],
+            var labelsCache = {},
+                mappedCache = {},
+                labels = [],
                 mapped = {},
                 deepLabel = DeepLabel;
-
-
             element.typeahead({
                 source: function (query, process) {
+                    if (query in labelsCache) {
+                        labels = labelsCache[query];
+                        mapped = mappedCache[query];
+                        process(labels);
+                    } else {
                         var Entity = angular.injector(['overlord.service']).get(attrs.resource);
                         Entity.autocomplete({term: query, count: 20}, function (result) {
                             labels = [];
@@ -21,8 +26,11 @@ overlord_directive.directive('ngAutocomplete', ['$q', '$parse', 'DeepLabel', fun
                                 mapped[label] = item
                                 labels.push(label)
                             })
+                            labelsCache[query] = labels;
+                            mappedCache[query] = mapped;
                             process(labels)
                         });
+                    }
                 },
                 minLength: 1,
                 items: 20,