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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 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 #include "ui/views/corewm/transient_window_stacking_client.h" | 5 #include "ui/views/corewm/transient_window_stacking_client.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "ui/views/corewm/transient_window_manager.h" | 9 #include "ui/views/corewm/transient_window_manager.h" |
10 #include "ui/views/corewm/window_util.h" | 10 #include "ui/views/corewm/window_util.h" |
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36 DCHECK(*window1); | 36 DCHECK(*window1); |
37 DCHECK(*window2); | 37 DCHECK(*window2); |
38 // Assemble chains of ancestors of both windows. | 38 // Assemble chains of ancestors of both windows. |
39 Window::Windows ancestors1; | 39 Window::Windows ancestors1; |
40 Window::Windows ancestors2; | 40 Window::Windows ancestors2; |
41 if (!GetAllTransientAncestors(*window1, &ancestors1) || | 41 if (!GetAllTransientAncestors(*window1, &ancestors1) || |
42 !GetAllTransientAncestors(*window2, &ancestors2)) { | 42 !GetAllTransientAncestors(*window2, &ancestors2)) { |
43 return; | 43 return; |
44 } | 44 } |
45 // Walk the two chains backwards and look for the first difference. | 45 // Walk the two chains backwards and look for the first difference. |
46 Window::Windows::const_reverse_iterator it1 = ancestors1.rbegin(); | 46 Window::Windows::reverse_iterator it1 = ancestors1.rbegin(); |
47 Window::Windows::const_reverse_iterator it2 = ancestors2.rbegin(); | 47 Window::Windows::reverse_iterator it2 = ancestors2.rbegin(); |
48 for (; it1 != ancestors1.rend() && it2 != ancestors2.rend(); ++it1, ++it2) { | 48 for (; it1 != ancestors1.rend() && it2 != ancestors2.rend(); ++it1, ++it2) { |
49 if (*it1 != *it2) { | 49 if (*it1 != *it2) { |
50 *window1 = *it1; | 50 *window1 = *it1; |
51 *window2 = *it2; | 51 *window2 = *it2; |
52 break; | 52 break; |
53 } | 53 } |
54 } | 54 } |
55 } | 55 } |
56 | 56 |
57 // Adjusts |target| so that we don't attempt to stack on top of a window with a | 57 // Adjusts |target| so that we don't attempt to stack on top of a window with a |
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125 if (*direction == Window::STACK_ABOVE && | 125 if (*direction == Window::STACK_ABOVE && |
126 ((*target)->layer() && (*target)->layer()->delegate() == NULL)) { | 126 ((*target)->layer() && (*target)->layer()->delegate() == NULL)) { |
127 return false; | 127 return false; |
128 } | 128 } |
129 | 129 |
130 return *child != *target; | 130 return *child != *target; |
131 } | 131 } |
132 | 132 |
133 } // namespace corewm | 133 } // namespace corewm |
134 } // namespace views | 134 } // namespace views |
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