Add App.bindKey

src/atom/app.coffee

@@ -15,6 +15,9 @@ class App
   bindKeys: (selector, bindings) ->
     @globalKeymap.bindKeys(selector, bindings)
 
+  bindKey: (selector, pattern, eventName) ->
+    @globalKeymap.bindKey(selector, pattern, eventName)
+
   open: (url) ->
     OSX.NSApp.open url
 

src/atom/global-keymap.coffee

@@ -12,6 +12,11 @@ class GlobalKeymap
   bindKeys: (selector, bindings) ->
     @bindingSets.unshift(new BindingSet(selector, bindings))
 
+  bindKey: (selector, pattern, eventName) ->
+    bindings = {}
+    bindings[pattern] = eventName
+    @bindKeys(selector, bindings)
+
   handleKeyEvent: (event) ->
     currentNode = $(event.target)
     while currentNode.length

src/atom/vim-mode.coffee

@@ -29,10 +29,8 @@ class VimMode
         @registerCommand i, "numeric-prefix-#{i}", => new op.NumericPrefix(i)
 
   registerCommand: (binding, commandName, fn)->
-    bindings = {}
     eventName = "command-mode:#{commandName}"
-    bindings[binding] = eventName
-    atom.bindKeys '.command-mode', bindings
+    atom.bindKey '.command-mode', binding, eventName
     @editor.on eventName, =>
       possibleOperator = fn()
       @pushOperator(possibleOperator) if possibleOperator.execute?