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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #import <Cocoa/Cocoa.h> | 5 #import <Cocoa/Cocoa.h> |
6 | 6 |
7 #include "base/memory/scoped_nsobject.h" | 7 #include "base/mac/scoped_nsobject.h" |
8 #include "ui/base/ui_export.h" | 8 #include "ui/base/ui_export.h" |
9 | 9 |
10 // A class that handles saving and restoring focus. An instance of | 10 // A class that handles saving and restoring focus. An instance of |
11 // this class snapshots the currently focused view when it is | 11 // this class snapshots the currently focused view when it is |
12 // constructed, and callers can use restoreFocus to return focus to | 12 // constructed, and callers can use restoreFocus to return focus to |
13 // that view. FocusTracker will not restore focus to views that are | 13 // that view. FocusTracker will not restore focus to views that are |
14 // no longer in the view hierarchy or are not in the correct window. | 14 // no longer in the view hierarchy or are not in the correct window. |
15 UI_EXPORT | 15 UI_EXPORT |
16 @interface FocusTracker : NSObject { | 16 @interface FocusTracker : NSObject { |
17 @private | 17 @private |
18 scoped_nsobject<NSView> focusedView_; | 18 base::scoped_nsobject<NSView> focusedView_; |
19 } | 19 } |
20 | 20 |
21 // |window| is the window that we are saving focus for. This | 21 // |window| is the window that we are saving focus for. This |
22 // method snapshots the currently focused view. | 22 // method snapshots the currently focused view. |
23 - (id)initWithWindow:(NSWindow*)window; | 23 - (id)initWithWindow:(NSWindow*)window; |
24 | 24 |
25 // Attempts to restore focus to the snapshotted view. Returns YES if | 25 // Attempts to restore focus to the snapshotted view. Returns YES if |
26 // focus was restored. Will not restore focus if the view is no | 26 // focus was restored. Will not restore focus if the view is no |
27 // longer in the view hierarchy under |window|. | 27 // longer in the view hierarchy under |window|. |
28 - (BOOL)restoreFocusInWindow:(NSWindow*)window; | 28 - (BOOL)restoreFocusInWindow:(NSWindow*)window; |
29 @end | 29 @end |
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