blob: 552b53ca048f0407296acdd5a5f6cffee9524c31 (
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
60
61
62
63
|
// Copyright 2013 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 COMPONENTS_WEB_RESOURCE_EULA_ACCEPTED_NOTIFIER_H_
#define COMPONENTS_WEB_RESOURCE_EULA_ACCEPTED_NOTIFIER_H_
#include "base/basictypes.h"
#include "base/prefs/pref_change_registrar.h"
class PrefService;
namespace web_resource {
// Helper class for querying the EULA accepted state and receiving a
// notification when the EULA is accepted.
class EulaAcceptedNotifier {
public:
// Observes EULA accepted state changes.
class Observer {
public:
virtual void OnEulaAccepted() = 0;
};
explicit EulaAcceptedNotifier(PrefService* local_state);
virtual ~EulaAcceptedNotifier();
// Initializes this class with the given |observer|. Must be called before
// the class is used.
void Init(Observer* observer);
// Returns true if the EULA has been accepted. If the EULA has not yet been
// accepted, begins monitoring the EULA state and will notify the observer
// once the EULA has been accepted.
virtual bool IsEulaAccepted();
// Factory method for this class.
static EulaAcceptedNotifier* Create(PrefService* local_state);
protected:
// Notifies the observer that the EULA has been updated, made protected for
// testing.
void NotifyObserver();
private:
// Callback for EULA accepted pref change notification.
void OnPrefChanged();
// Local state pref service for querying the EULA accepted pref.
PrefService* local_state_;
// Used to listen for the EULA accepted pref change notification.
PrefChangeRegistrar registrar_;
// Observer of the EULA accepted notification.
Observer* observer_;
DISALLOW_COPY_AND_ASSIGN(EulaAcceptedNotifier);
};
} // namespace web_resource
#endif // COMPONENTS_WEB_RESOURCE_EULA_ACCEPTED_NOTIFIER_H_
|
