| // Copyright (c) 2012 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 FOCUS_CYCLER_H_ |
| #define FOCUS_CYCLER_H_ |
| #pragma once |
| |
| #include <vector> |
| |
| #include "ash/ash_export.h" |
| #include "base/compiler_specific.h" |
| #include "ui/base/accelerators/accelerator.h" |
| |
| namespace views { |
| class Widget; |
| } // namespace views |
| |
| namespace ash { |
| |
| namespace internal { |
| |
| // This class handles moving focus between a set of widgets and the main browser |
| // window. |
| class ASH_EXPORT FocusCycler : public ui::AcceleratorTarget { |
| public: |
| enum Direction { |
| FORWARD, |
| BACKWARD |
| }; |
| |
| FocusCycler(); |
| virtual ~FocusCycler(); |
| |
| // Returns the widget the FocusCycler is attempting to activate or NULL if |
| // FocusCycler is not activating any widgets. |
| const views::Widget* widget_activating() const { return widget_activating_; } |
| |
| // Add a widget to the focus cycle and set up accelerators. The widget needs |
| // to have an AccessiblePaneView as the content view. |
| void AddWidget(views::Widget* widget); |
| |
| // Move focus to the next widget. |
| void RotateFocus(Direction direction); |
| |
| // Moves focus the specified widget. Returns true if the widget was activated. |
| bool FocusWidget(views::Widget* widget); |
| |
| // ui::AcceleratorTarget overrides |
| virtual bool AcceleratorPressed(const ui::Accelerator& accelerator) OVERRIDE; |
| virtual bool CanHandleAccelerators() const OVERRIDE; |
| |
| private: |
| std::vector<views::Widget*> widgets_; |
| |
| // See description above getter. |
| views::Widget* widget_activating_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FocusCycler); |
| }; |
| |
| } // namespace internal |
| |
| } // namespace ash |
| |
| #endif // FOCUS_CYCLER_H_ |