1 // Copyright 2013 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.
5 #ifndef ASH_WM_OVERVIEW_WINDOW_SELECTOR_CONTROLLER_H_
6 #define ASH_WM_OVERVIEW_WINDOW_SELECTOR_CONTROLLER_H_
11 #include "ash/ash_export.h"
12 #include "ash/wm/overview/window_selector.h"
13 #include "ash/wm/overview/window_selector_delegate.h"
14 #include "base/basictypes.h"
15 #include "base/memory/scoped_ptr.h"
16 #include "base/time/time.h"
17 #include "ui/aura/window_observer.h"
25 class WindowSelectorTest;
27 // Manages a window selector which displays an overview of all windows and
28 // allows selecting a window to activate it.
29 class ASH_EXPORT WindowSelectorController
30 : public WindowSelectorDelegate {
32 WindowSelectorController();
33 virtual ~WindowSelectorController();
35 // Returns true if selecting windows in an overview is enabled. This is false
36 // at certain times, such as when the lock screen is visible.
37 static bool CanSelect();
39 // Enters overview mode. This is essentially the window cycling mode however
40 // not released on releasing the alt key and allows selecting with the mouse
41 // or touch rather than keypresses.
42 void ToggleOverview();
44 // Cycles between windows in the given |direction|. It is assumed that the
45 // alt key is held down and a key filter is installed to watch for alt being
47 void HandleCycleWindow(WindowSelector::Direction direction);
49 // Returns true if window selection mode is active.
52 // WindowSelectorDelegate:
53 virtual void OnWindowSelected(aura::Window* window) OVERRIDE;
54 virtual void OnSelectionCanceled() OVERRIDE;
57 friend class WindowSelectorTest;
59 // Dispatched when window selection begins.
60 void OnSelectionStarted();
62 scoped_ptr<WindowSelector> window_selector_;
63 base::Time last_selection_time_;
65 DISALLOW_COPY_AND_ASSIGN(WindowSelectorController);
70 #endif // ASH_WM_OVERVIEW_WINDOW_SELECTOR_CONTROLLER_H_