1 // Copyright 2014 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 UI_WM_CORE_NESTED_ACCELERATOR_CONTROLLER_H_ 6 #define UI_WM_CORE_NESTED_ACCELERATOR_CONTROLLER_H_ 7 8 #include "base/callback.h" 9 #include "base/message_loop/message_loop.h" 10 #include "ui/wm/public/dispatcher_client.h" 11 #include "ui/wm/wm_export.h" 12 13 namespace wm { 14 15 class NestedAcceleratorDelegate; 16 class NestedAcceleratorDispatcher; 17 18 // Creates a dispatcher which wraps another dispatcher. 19 // The outer dispatcher runs first and performs ash specific handling. 20 // If it does not consume the event it forwards the event to the nested 21 // dispatcher. 22 class WM_EXPORT NestedAcceleratorController 23 : public aura::client::DispatcherClient { 24 public: 25 explicit NestedAcceleratorController(NestedAcceleratorDelegate* delegate); 26 virtual ~NestedAcceleratorController(); 27 28 // aura::client::DispatcherClient: 29 virtual void PrepareNestedLoopClosures( 30 base::MessagePumpDispatcher* dispatcher, 31 base::Closure* run_closure, 32 base::Closure* quit_closure) OVERRIDE; 33 34 private: 35 void RunNestedMessageLoop(scoped_ptr<base::RunLoop> run_loop, 36 scoped_ptr<NestedAcceleratorDispatcher> dispatcher); 37 void QuitNestedMessageLoop(const base::Closure& quit_runloop); 38 39 scoped_ptr<NestedAcceleratorDispatcher> accelerator_dispatcher_; 40 scoped_ptr<NestedAcceleratorDelegate> dispatcher_delegate_; 41 42 DISALLOW_COPY_AND_ASSIGN(NestedAcceleratorController); 43 }; 44 45 } // namespace wm 46 47 #endif // UI_WM_CORE_NESTED_ACCELERATOR_CONTROLLER_H_ 48