Expose completion keys via sendRequest interface in background page.

1 files changed, 10 insertions, 1 deletions

diff --git a/background_page.html b/background_page.html
index 132b9c4a..9640ab50 100644
--- a/background_page.html
+++ b/background_page.html
@@ -19,7 +19,9 @@
     getSetting:           getSetting
   };
 
-  var sendRequestHandlers = {};
+  var sendRequestHandlers = {
+    getCompletionKeys:    getCompletionKeys
+  };
 
   // Event handlers
   var selectionChangedHandlers = [];
@@ -98,6 +100,13 @@
     returnPort.postMessage({ zoomLevel: zoomLevel });
   }
 
+  /**
+   * Returns the keys that can complete a valid command given the current key queue.
+   */
+  function getCompletionKeys(request) {
+    return {completionKeys: generateCompletionKeys()};
+  }
+
   /*
    * Used by the content scripts to get settings from the local storage.
    */