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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef ASH_ACCELERATORS_NESTED_DISPATCHER_CONTROLLER_H_
      6 #define ASH_ACCELERATORS_NESTED_DISPATCHER_CONTROLLER_H_
      7 
      8 #include "ash/ash_export.h"
      9 #include "base/message_loop/message_loop.h"
     10 #include "ui/aura/client/dispatcher_client.h"
     11 #include "ui/aura/window.h"
     12 
     13 namespace ash {
     14 
     15 // Creates a dispatcher which wraps another dispatcher.
     16 // The outer dispatcher runs first and performs ash specific handling.
     17 // If it does not consume the event it forwards the event to the nested
     18 // dispatcher.
     19 class ASH_EXPORT NestedDispatcherController
     20     : public aura::client::DispatcherClient {
     21  public:
     22   NestedDispatcherController();
     23   virtual ~NestedDispatcherController();
     24 
     25   virtual void RunWithDispatcher(base::MessageLoop::Dispatcher* dispatcher,
     26                                  aura::Window* associated_window,
     27                                  bool nestable_tasks_allowed) OVERRIDE;
     28 
     29  private:
     30   DISALLOW_COPY_AND_ASSIGN(NestedDispatcherController);
     31 };
     32 
     33 }  // namespace ash
     34 
     35 #endif  // ASH_ACCELERATORS_NESTED_DISPATCHER_CONTROLLER_H_
     36