| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_WM_CORE_NESTED_ACCELERATOR_DISPATCHER_H_ |
| #define UI_WM_CORE_NESTED_ACCELERATOR_DISPATCHER_H_ |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "ui/wm/wm_export.h" |
| |
| namespace base { |
| class MessagePumpDispatcher; |
| class RunLoop; |
| } |
| |
| namespace ui { |
| class KeyEvent; |
| } |
| |
| namespace wm { |
| |
| class NestedAcceleratorDelegate; |
| |
| // Dispatcher for handling accelerators from menu. |
| // |
| // Wraps a nested dispatcher to which control is passed if no accelerator key |
| // has been pressed. If the nested dispatcher is NULL, then the control is |
| // passed back to the default dispatcher. |
| // TODO(pkotwicz): Add support for a |nested_dispatcher| which sends |
| // events to a system IME. |
| class WM_EXPORT NestedAcceleratorDispatcher { |
| public: |
| virtual ~NestedAcceleratorDispatcher(); |
| |
| static scoped_ptr<NestedAcceleratorDispatcher> Create( |
| NestedAcceleratorDelegate* dispatcher_delegate, |
| base::MessagePumpDispatcher* nested_dispatcher); |
| |
| // Creates a base::RunLoop object to run a nested message loop. |
| virtual scoped_ptr<base::RunLoop> CreateRunLoop() = 0; |
| |
| protected: |
| explicit NestedAcceleratorDispatcher(NestedAcceleratorDelegate* delegate); |
| |
| NestedAcceleratorDelegate* |
| delegate_; // Owned by NestedAcceleratorController. |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(NestedAcceleratorDispatcher); |
| }; |
| |
| } // namespace wm |
| |
| #endif // UI_WM_CORE_NESTED_ACCELERATOR_DISPATCHER_H_ |