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Side by Side Diff: chromeos/dbus/system_clock_client.h

Issue 91413002: Remove fake client creation from DBusClients' Create() functions. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebased. Created 7 years ago
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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 #ifndef CHROMEOS_DBUS_SYSTEM_CLOCK_CLIENT_H_ 5 #ifndef CHROMEOS_DBUS_SYSTEM_CLOCK_CLIENT_H_
6 #define CHROMEOS_DBUS_SYSTEM_CLOCK_CLIENT_H_ 6 #define CHROMEOS_DBUS_SYSTEM_CLOCK_CLIENT_H_
7 7
8 #include "base/observer_list.h" 8 #include "base/observer_list.h"
9 #include "chromeos/chromeos_export.h" 9 #include "chromeos/chromeos_export.h"
10 #include "chromeos/dbus/dbus_client.h" 10 #include "chromeos/dbus/dbus_client.h"
11 #include "chromeos/dbus/dbus_client_implementation_type.h"
12 11
13 namespace chromeos { 12 namespace chromeos {
14 13
15 // SystemClockClient is used to communicate with the system clock. 14 // SystemClockClient is used to communicate with the system clock.
16 class CHROMEOS_EXPORT SystemClockClient : public DBusClient { 15 class CHROMEOS_EXPORT SystemClockClient : public DBusClient {
17 public: 16 public:
18 // Interface for observing changes from the system clock. 17 // Interface for observing changes from the system clock.
19 class Observer { 18 class Observer {
20 public: 19 public:
21 // Called when the status is updated. 20 // Called when the status is updated.
22 virtual void SystemClockUpdated() {} 21 virtual void SystemClockUpdated() {}
23 protected: 22 protected:
24 virtual ~Observer() {} 23 virtual ~Observer() {}
25 }; 24 };
26 25
27 virtual ~SystemClockClient(); 26 virtual ~SystemClockClient();
28 27
29 // Adds and removes the observer. 28 // Adds and removes the observer.
30 virtual void AddObserver(Observer* observer) = 0; 29 virtual void AddObserver(Observer* observer) = 0;
31 virtual void RemoveObserver(Observer* observer) = 0; 30 virtual void RemoveObserver(Observer* observer) = 0;
32 // Returns true if this object has the given observer. 31 // Returns true if this object has the given observer.
33 virtual bool HasObserver(Observer* observer) = 0; 32 virtual bool HasObserver(Observer* observer) = 0;
34 33
35 // Creates the instance. 34 // Creates the instance.
36 static SystemClockClient* Create(DBusClientImplementationType type); 35 static SystemClockClient* Create();
37 36
38 protected: 37 protected:
39 // Create() should be used instead. 38 // Create() should be used instead.
40 SystemClockClient(); 39 SystemClockClient();
41 40
42 private: 41 private:
43 DISALLOW_COPY_AND_ASSIGN(SystemClockClient); 42 DISALLOW_COPY_AND_ASSIGN(SystemClockClient);
44 }; 43 };
45 44
46 } // namespace chromeos 45 } // namespace chromeos
47 46
48 #endif // CHROMEOS_DBUS_SYSTEM_CLOCK_CLIENT_H_ 47 #endif // CHROMEOS_DBUS_SYSTEM_CLOCK_CLIENT_H_
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