blob: b33eb3d813fe8bd45b821637cfeb7435cafb566e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_CHROMEOS_CROS_SYSTEM_LIBRARY_H_
#define CHROME_BROWSER_CHROMEOS_CROS_SYSTEM_LIBRARY_H_
#include "base/observer_list.h"
#include "base/scoped_ptr.h"
#include "base/singleton.h"
#include "cros/chromeos_system.h"
#include "unicode/timezone.h"
namespace chromeos {
// This interface defines interaction with the ChromeOS system APIs.
class SystemLibrary {
public:
class Observer {
public:
// Called when the timezone has changed. |timezone| is non-null.
virtual void TimezoneChanged(const icu::TimeZone& timezone) = 0;
};
virtual ~SystemLibrary() {}
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
// Returns the current timezone as an icu::Timezone object.
virtual const icu::TimeZone& GetTimezone() = 0;
// Sets the current timezone. |timezone| must be non-null.
virtual void SetTimezone(const icu::TimeZone* timezone) = 0;
};
// This class handles the interaction with the ChromeOS syslogs APIs.
class SystemLibraryImpl : public SystemLibrary {
public:
SystemLibraryImpl();
virtual ~SystemLibraryImpl() {}
// NetworkLibrary overrides.
virtual void AddObserver(Observer* observer);
virtual void RemoveObserver(Observer* observer);
virtual const icu::TimeZone& GetTimezone();
virtual void SetTimezone(const icu::TimeZone*);
private:
scoped_ptr<icu::TimeZone> timezone_;
ObserverList<Observer> observers_;
DISALLOW_COPY_AND_ASSIGN(SystemLibraryImpl);
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_CROS_SYSTEM_LIBRARY_H_
|
