Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / ui / wm / core / shadow_controller.h
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
3 // found in the LICENSE file.
4
5 #ifndef UI_WM_CORE_SHADOW_CONTROLLER_H_
6 #define UI_WM_CORE_SHADOW_CONTROLLER_H_
7
8 #include <map>
9
10 #include "base/basictypes.h"
11 #include "base/compiler_specific.h"
12 #include "base/memory/ref_counted.h"
13 #include "ui/wm/public/activation_change_observer.h"
14 #include "ui/wm/wm_export.h"
15
16 namespace aura {
17 class Window;
18 namespace client {
19 class ActivationClient;
20 }
21 }
22 namespace gfx {
23 class Rect;
24 }
25
26 namespace wm {
27
28 class Shadow;
29
30 // ShadowController observes changes to windows and creates and updates drop
31 // shadows as needed. ShadowController itself is light weight and per
32 // ActivationClient. ShadowController delegates to its implementation class,
33 // which observes all window creation.
34 class WM_EXPORT ShadowController :
35     public aura::client::ActivationChangeObserver {
36  public:
37   class WM_EXPORT TestApi {
38    public:
39     explicit TestApi(ShadowController* controller) : controller_(controller) {}
40     ~TestApi() {}
41
42     Shadow* GetShadowForWindow(aura::Window* window);
43
44    private:
45     ShadowController* controller_;  // not owned
46
47     DISALLOW_COPY_AND_ASSIGN(TestApi);
48   };
49
50   explicit ShadowController(aura::client::ActivationClient* activation_client);
51   ~ShadowController() override;
52
53   // aura::client::ActivationChangeObserver overrides:
54   void OnWindowActivated(aura::Window* gained_active,
55                          aura::Window* lost_active) override;
56
57  private:
58   class Impl;
59
60   aura::client::ActivationClient* activation_client_;
61
62   scoped_refptr<Impl> impl_;
63
64   DISALLOW_COPY_AND_ASSIGN(ShadowController);
65 };
66
67 }  // namespace wm
68
69 #endif  // UI_WM_CORE_SHADOW_CONTROLLER_H_