1 files changed, 19 insertions, 0 deletions
diff --git a/lib/dom_utils.coffee b/lib/dom_utils.coffee
index 690d9969..df9ca390 100644
--- a/lib/dom_utils.coffee
+++ b/lib/dom_utils.coffee
@@ -315,6 +315,25 @@ DomUtils =
         false
     handlerStack.suppressEvent
 
+  consumeKeyup: (event, callback = null) ->
+    @suppressEvent event
+    keyChar = KeyboardUtils.getKeyCharString event
+    handlerStack.push
+      _name: "dom_utils/consumeKeyup"
+      keydown: (event) ->
+        @remove()
+        handlerStack.continueBubbling
+      keyup: (event) ->
+        return handlerStack.continueBubbling unless keyChar == KeyboardUtils.getKeyCharString event
+        @remove()
+        handlerStack.suppressEvent
+      # We cannot track keyup events if we lose the focus.
+      blur: (event) ->
+        @remove() if event.target == window
+        handlerStack.continueBubbling
+    callback?()
+    handlerStack.suppressEvent
+
   # Adapted from: http://roysharon.com/blog/37.
   # This finds the element containing the selection focus.
   getElementWithFocus: (selection, backwards) ->