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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 FOCUS_CYCLER_H_ |
| 6 #define FOCUS_CYCLER_H_ |
| 7 #pragma once |
| 8 |
| 9 #include <vector> |
| 10 |
| 11 #include "base/compiler_specific.h" |
| 12 #include "ui/base/accelerators/accelerator.h" |
| 13 |
| 14 namespace views { |
| 15 class Widget; |
| 16 } // namespace views |
| 17 |
| 18 namespace ash { |
| 19 |
| 20 namespace internal { |
| 21 |
| 22 // This class handles moving focus between a set of widgets and the main browser |
| 23 // window. |
| 24 class FocusCycler : public ui::AcceleratorTarget { |
| 25 public: |
| 26 enum Direction { |
| 27 FORWARD, |
| 28 BACKWARD |
| 29 }; |
| 30 |
| 31 FocusCycler(); |
| 32 virtual ~FocusCycler(); |
| 33 |
| 34 // Add a widget to the focus cycle and set up accelerators. The widget needs |
| 35 // to have an AccessiblePaneView as the content view. |
| 36 void AddWidget(views::Widget* widget); |
| 37 |
| 38 // Move focus to the next widget. |
| 39 void RotateFocus(Direction direction); |
| 40 |
| 41 // ui::AcceleratorTarget overrides |
| 42 virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE; |
| 43 virtual bool CanHandleAccelerators() const OVERRIDE; |
| 44 |
| 45 private: |
| 46 std::vector<views::Widget*> widgets_; |
| 47 |
| 48 DISALLOW_COPY_AND_ASSIGN(FocusCycler); |
| 49 }; |
| 50 |
| 51 } // namespace internal |
| 52 |
| 53 } // namespace ash |
| 54 |
| 55 #endif // FOCUS_CYCLER_H_ |
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