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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 | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef UI_AURA_SHELL_STATUS_AREA_LAYOUT_MANAGER_H_ | |
6 #define UI_AURA_SHELL_STATUS_AREA_LAYOUT_MANAGER_H_ | |
7 #pragma once | |
8 | |
9 #include "base/basictypes.h" | |
10 #include "base/compiler_specific.h" | |
11 #include "ui/aura/layout_manager.h" | |
12 | |
13 namespace aura_shell { | |
14 namespace internal { | |
15 | |
16 class ShelfLayoutManager; | |
17 | |
18 // StatusAreaLayoutManager is a layout manager responsible for the status area. | |
19 // In any case when status area needs relayout it redirects this call to | |
20 // ShelfLayoutManager. | |
21 class StatusAreaLayoutManager : public aura::LayoutManager { | |
22 public: | |
23 explicit StatusAreaLayoutManager(ShelfLayoutManager* shelf); | |
24 virtual ~StatusAreaLayoutManager(); | |
25 | |
26 // Overridden from aura::LayoutManager: | |
27 virtual void OnWindowResized() OVERRIDE; | |
28 virtual void OnWindowAddedToLayout(aura::Window* child) OVERRIDE; | |
29 virtual void OnWillRemoveWindowFromLayout(aura::Window* child) OVERRIDE; | |
30 virtual void OnChildWindowVisibilityChanged(aura::Window* child, | |
31 bool visible) OVERRIDE; | |
32 virtual void SetChildBounds(aura::Window* child, | |
33 const gfx::Rect& requested_bounds) OVERRIDE; | |
34 | |
35 private: | |
36 // Updates layout of the status area. Effectively calls ShelfLayoutManager | |
37 // to update layout of the shelf. | |
38 void LayoutStatusArea(); | |
39 | |
40 // True when inside LayoutStatusArea method. | |
41 // Used to prevent calling itself again from SetChildBounds(). | |
42 bool in_layout_; | |
43 | |
44 ShelfLayoutManager* shelf_; | |
45 | |
46 DISALLOW_COPY_AND_ASSIGN(StatusAreaLayoutManager); | |
47 }; | |
48 | |
49 } // namespace internal | |
50 } // namespace aura_shell | |
51 | |
52 #endif // UI_AURA_SHELL_STATUS_AREA_LAYOUT_MANAGER_H_ | |
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