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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 ASH_SYSTEM_CHROMEOS_TRAY_DISPLAY_H_ | |
6 #define ASH_SYSTEM_CHROMEOS_TRAY_DISPLAY_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include <map> | |
11 | |
12 #include "ash/ash_export.h" | |
13 #include "ash/common/display/display_info.h" | |
14 #include "ash/common/system/tray/system_tray_item.h" | |
15 #include "ash/common/wm_display_observer.h" | |
16 #include "base/macros.h" | |
17 #include "base/strings/string16.h" | |
18 #include "ui/views/view.h" | |
19 | |
20 namespace ash { | |
21 | |
22 class DisplayView; | |
23 | |
24 class ASH_EXPORT TrayDisplay : public SystemTrayItem, public WmDisplayObserver { | |
25 public: | |
26 explicit TrayDisplay(SystemTray* system_tray); | |
27 ~TrayDisplay() override; | |
28 | |
29 // Overridden from WmDisplayObserver: | |
30 void OnDisplayConfigurationChanged() override; | |
31 | |
32 private: | |
33 friend class TrayDisplayTest; | |
34 | |
35 typedef std::map<int64_t, DisplayInfo> DisplayInfoMap; | |
36 | |
37 static const char kNotificationId[]; | |
38 | |
39 // Scans the current display info and updates |display_info_|. Sets the | |
40 // previous data to |old_info| if it's not NULL. | |
41 void UpdateDisplayInfo(DisplayInfoMap* old_info); | |
42 | |
43 // Compares the current display settings with |old_info| and determine what | |
44 // message should be shown for notification. Returns true if there's a | |
45 // meaningful change. Note that it's possible to return true and set | |
46 // |message_out| to empty, which means the notification should be removed. It | |
47 // also sets |additional_message_out| which appears in the notification with | |
48 // the |message_out|. | |
49 bool GetDisplayMessageForNotification(const DisplayInfoMap& old_info, | |
50 base::string16* message_out, | |
51 base::string16* additional_message_out); | |
52 | |
53 // Creates or updates the display notification. | |
54 void CreateOrUpdateNotification(const base::string16& message, | |
55 const base::string16& additional_message); | |
56 | |
57 // Overridden from SystemTrayItem. | |
58 views::View* CreateDefaultView(LoginStatus status) override; | |
59 void DestroyDefaultView() override; | |
60 | |
61 // Test accessors. | |
62 base::string16 GetDefaultViewMessage() const; | |
63 bool GetAccessibleStateForTesting(ui::AXViewState* state); | |
64 const views::View* default_view() const { | |
65 return reinterpret_cast<views::View*>(default_); | |
66 } | |
67 | |
68 DisplayView* default_; | |
69 DisplayInfoMap display_info_; | |
70 | |
71 DISALLOW_COPY_AND_ASSIGN(TrayDisplay); | |
72 }; | |
73 | |
74 } // namespace ash | |
75 | |
76 #endif // ASH_SYSTEM_CHROMEOS_TRAY_DISPLAY_H_ | |
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