1 // Copyright 2012 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef ASH_FOCUS_CYCLER_H_
6 #define ASH_FOCUS_CYCLER_H_
10 #include "ash/ash_export.h"
11 #include "base/callback.h"
19 // This class handles moving focus between a set of widgets and the main browser
21 class ASH_EXPORT FocusCycler {
23 enum Direction { FORWARD, BACKWARD };
27 FocusCycler(const FocusCycler&) = delete;
28 FocusCycler& operator=(const FocusCycler&) = delete;
32 // Returns the widget the FocusCycler is attempting to activate or NULL if
33 // FocusCycler is not activating any widgets.
34 const views::Widget* widget_activating() const { return widget_activating_; }
36 // Add a widget to the focus cycle. The widget needs to have an
37 // AccessiblePaneView as the content view.
38 void AddWidget(views::Widget* widget);
40 // Remove a widget from the focus cycle.
41 void RemoveWidget(views::Widget* widget);
43 // Move focus to the next widget.
44 void RotateFocus(Direction direction);
46 // Moves focus the specified widget. Returns true if the widget was activated.
47 bool FocusWidget(views::Widget* widget);
49 // Find a widget that matches the criteria given by |callback|
51 views::Widget* FindWidget(
52 base::RepeatingCallback<bool(views::Widget*)> callback);
55 std::vector<views::Widget*> widgets_;
57 // See description above getter.
58 views::Widget* widget_activating_;
63 #endif // ASH_FOCUS_CYCLER_H_