From 01a6df1f155b8b068925cc813d663457edc860e8 Mon Sep 17 00:00:00 2001
From: Stephen Blott
Date: Sun, 31 May 2015 14:04:28 +0100
Subject: Re-write class with inheritence.

---
 background_scripts/completion_engines.coffee | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

(limited to 'background_scripts')

diff --git a/background_scripts/completion_engines.coffee b/background_scripts/completion_engines.coffee
index 9a88d491..48f94965 100644
--- a/background_scripts/completion_engines.coffee
+++ b/background_scripts/completion_engines.coffee
@@ -43,15 +43,15 @@ class Google extends GoogleXMLRegexpEngine
 # A wrapper class for Google completions.  This adds prefix terms to the query, and strips those terms from
 # the resulting suggestions.  For example, for Google Maps, we add "map of" as a prefix, then strip "map of"
 # from the resulting suggestions.
-class GoogleWithPrefix
+class GoogleWithPrefix extends Google
   constructor: (prefix, args...) ->
-    @engine = new Google args...
-    @prefix = "#{prefix.trim()} "
-    @queryTerms = @prefix.split /\s+/
-  match: (args...) -> @engine.match args...
-  getUrl: (queryTerms) -> @engine.getUrl [ @queryTerms..., queryTerms... ]
+    super args...
+    prefix = prefix.trim()
+    @prefix = "#{prefix} "
+    @queryTerms = prefix.split /\s+/
+  getUrl: (queryTerms) -> super [ @queryTerms..., queryTerms... ]
   parse: (xhr) ->
-    @engine.parse(xhr)
+    super(xhr)
       .filter (suggestion) => suggestion.startsWith @prefix
       .map (suggestion) => suggestion[@prefix.length..].ltrim()
 
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