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Side by Side Diff: views/focus/external_focus_tracker.h

Issue 7550038: Rename VIEWS_API to VIEWS_EXPORT. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Created 9 years, 4 months ago
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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 VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ 5 #ifndef VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_
6 #define VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ 6 #define VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_
7 #pragma once 7 #pragma once
8 8
9 #include "views/focus/focus_manager.h" 9 #include "views/focus/focus_manager.h"
10 10
11 namespace views { 11 namespace views {
12 12
13 class View; 13 class View;
14 class ViewStorage; 14 class ViewStorage;
15 15
16 // ExternalFocusTracker tracks the last focused view which belongs to the 16 // ExternalFocusTracker tracks the last focused view which belongs to the
17 // provided focus manager and is not either the provided parent view or one of 17 // provided focus manager and is not either the provided parent view or one of
18 // its descendants. This is generally used if the parent view want to return 18 // its descendants. This is generally used if the parent view want to return
19 // focus to some other view once it is dismissed. The parent view and the focus 19 // focus to some other view once it is dismissed. The parent view and the focus
20 // manager must exist for the duration of the tracking. If the focus manager 20 // manager must exist for the duration of the tracking. If the focus manager
21 // must be deleted before this object is deleted, make sure to call 21 // must be deleted before this object is deleted, make sure to call
22 // SetFocusManager(NULL) first. 22 // SetFocusManager(NULL) first.
23 // 23 //
24 // Typical use: When a view is added to the view hierarchy, it instantiates an 24 // Typical use: When a view is added to the view hierarchy, it instantiates an
25 // ExternalFocusTracker and passes in itself and its focus manager. Then, 25 // ExternalFocusTracker and passes in itself and its focus manager. Then,
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_API 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 32
33 virtual ~ExternalFocusTracker(); 33 virtual ~ExternalFocusTracker();
34 // FocusChangeListener implementation. 34 // FocusChangeListener implementation.
35 virtual void FocusWillChange(View* focused_before, View* focused_now); 35 virtual void FocusWillChange(View* focused_before, View* focused_now);
36 36
37 // Focuses last focused view which is not a child of parent view and is not 37 // Focuses last focused view which is not a child of parent view and is not
38 // parent view itself. Returns true if focus for a view was requested, false 38 // parent view itself. Returns true if focus for a view was requested, false
39 // otherwise. 39 // otherwise.
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68 // The parent view of views which we should not track focus changes to. We 68 // The parent view of views which we should not track focus changes to. We
69 // also do not track changes to parent_view_ itself. 69 // also do not track changes to parent_view_ itself.
70 View* parent_view_; 70 View* parent_view_;
71 71
72 DISALLOW_COPY_AND_ASSIGN(ExternalFocusTracker); 72 DISALLOW_COPY_AND_ASSIGN(ExternalFocusTracker);
73 }; 73 };
74 74
75 } // namespace views 75 } // namespace views
76 76
77 #endif // VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_ 77 #endif // VIEWS_FOCUS_EXTERNAL_FOCUS_TRACKER_H_
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