Favor composition over inheritence

1 files changed, 7 insertions, 5 deletions

diff --git a/lib/completion.js b/lib/completion.js
index a00f2dab..bc9b6fc6 100644
--- a/lib/completion.js
+++ b/lib/completion.js
@@ -145,18 +145,20 @@ var completion = (function() {
   });
 
   /** A fuzzy history completer */
-  var FuzzyHistoryCompletionSource = AsyncCompletionSource.extend({
+  var FuzzyHistoryCompletionSource = Class.extend({
     init: function(maxResults) {
-      this._super();
+      this.asyncCompleter = new AsyncCompletionSource();
       this.maxResults = maxResults;
     },
 
+    filter: function(query, callback) { return this.asyncCompleter.filter(query, callback); },
+
     refresh: function() {
-      this.reset();
+      this.asyncCompleter.reset();
 
       historyCache.use(function(history) {
-        this.resultsReady(history.slice(-this.maxResults).map(function(item) {
-          return this.createInternalMatch("history", item);
+        this.asyncCompleter.resultsReady(history.slice(-this.maxResults).map(function(item) {
+          return this.asyncCompleter.createInternalMatch("history", item);
         }.proxy(this)));
       }.proxy(this));
     }