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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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 #ifndef UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ | 5 #ifndef UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ |
6 #define UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ | 6 #define UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
9 #include "ui/views/focus/focus_manager.h" | 9 #include "ui/views/focus/focus_manager.h" |
10 | 10 |
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26 // when that view wants to return focus to the last focused view which is not | 26 // when that view wants to return focus to the last focused view which is not |
27 // itself and not a descandant of itself, (usually when it is being closed) | 27 // itself and not a descandant of itself, (usually when it is being closed) |
28 // it calls FocusLastFocusedExternalView. | 28 // it calls FocusLastFocusedExternalView. |
29 class VIEWS_EXPORT ExternalFocusTracker : public FocusChangeListener { | 29 class VIEWS_EXPORT ExternalFocusTracker : public FocusChangeListener { |
30 public: | 30 public: |
31 ExternalFocusTracker(View* parent_view, FocusManager* focus_manager); | 31 ExternalFocusTracker(View* parent_view, FocusManager* focus_manager); |
32 virtual ~ExternalFocusTracker(); | 32 virtual ~ExternalFocusTracker(); |
33 | 33 |
34 // FocusChangeListener: | 34 // FocusChangeListener: |
35 virtual void OnWillChangeFocus(View* focused_before, | 35 virtual void OnWillChangeFocus(View* focused_before, |
36 View* focused_now) OVERRIDE; | 36 View* focused_now) override; |
37 virtual void OnDidChangeFocus(View* focused_before, | 37 virtual void OnDidChangeFocus(View* focused_before, |
38 View* focused_now) OVERRIDE; | 38 View* focused_now) override; |
39 | 39 |
40 // Focuses last focused view which is not a child of parent view and is not | 40 // Focuses last focused view which is not a child of parent view and is not |
41 // parent view itself. Returns true if focus for a view was requested, false | 41 // parent view itself. Returns true if focus for a view was requested, false |
42 // otherwise. | 42 // otherwise. |
43 void FocusLastFocusedExternalView(); | 43 void FocusLastFocusedExternalView(); |
44 | 44 |
45 // Sets the focus manager whose focus we are tracking. |focus_manager| can | 45 // Sets the focus manager whose focus we are tracking. |focus_manager| can |
46 // be NULL, but no focus changes will be tracked. This is useful if the focus | 46 // be NULL, but no focus changes will be tracked. This is useful if the focus |
47 // manager went away, but you might later want to start tracking with a new | 47 // manager went away, but you might later want to start tracking with a new |
48 // manager later, or call FocusLastFocusedExternalView to focus the previous | 48 // manager later, or call FocusLastFocusedExternalView to focus the previous |
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71 // The parent view of views which we should not track focus changes to. We | 71 // The parent view of views which we should not track focus changes to. We |
72 // also do not track changes to parent_view_ itself. | 72 // also do not track changes to parent_view_ itself. |
73 View* parent_view_; | 73 View* parent_view_; |
74 | 74 |
75 DISALLOW_COPY_AND_ASSIGN(ExternalFocusTracker); | 75 DISALLOW_COPY_AND_ASSIGN(ExternalFocusTracker); |
76 }; | 76 }; |
77 | 77 |
78 } // namespace views | 78 } // namespace views |
79 | 79 |
80 #endif // UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ | 80 #endif // UI_VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ |
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