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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 #include "chrome/browser/prefs/pref_registry.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "base/prefs/default_pref_store.h" | |
9 #include "base/prefs/pref_store.h" | |
10 #include "base/values.h" | |
11 | |
12 PrefRegistry::PrefRegistry() | |
13 : defaults_(new DefaultPrefStore()) { | |
14 } | |
15 | |
16 PrefRegistry::~PrefRegistry() { | |
17 } | |
18 | |
19 scoped_refptr<PrefStore> PrefRegistry::defaults() { | |
20 return defaults_.get(); | |
21 } | |
22 | |
23 PrefRegistry::const_iterator PrefRegistry::begin() const { | |
24 return defaults_->begin(); | |
25 } | |
26 | |
27 PrefRegistry::const_iterator PrefRegistry::end() const { | |
28 return defaults_->end(); | |
29 } | |
30 | |
31 void PrefRegistry::SetRegistrationCallback( | |
32 const RegistrationCallback& callback) { | |
33 registration_callback_ = callback; | |
34 } | |
35 | |
36 void PrefRegistry::SetUnregistrationCallback( | |
37 const UnregistrationCallback& callback) { | |
38 unregistration_callback_ = callback; | |
39 } | |
40 | |
41 void PrefRegistry::DeprecatedUnregisterPreference(const char* path) { | |
42 DCHECK(defaults_->GetValue(path, NULL)) << | |
43 "Trying to unregister an unregistered pref: " << path; | |
44 | |
45 defaults_->RemoveDefaultValue(path); | |
46 | |
47 if (!unregistration_callback_.is_null()) | |
48 unregistration_callback_.Run(path); | |
49 } | |
50 | |
51 void PrefRegistry::RegisterPreference(const char* path, | |
52 base::Value* default_value) { | |
53 base::Value::Type orig_type = default_value->GetType(); | |
54 DCHECK(orig_type != base::Value::TYPE_NULL && | |
55 orig_type != base::Value::TYPE_BINARY) << | |
56 "invalid preference type: " << orig_type; | |
57 DCHECK(!defaults_->GetValue(path, NULL)) << | |
58 "Trying to register a previously registered pref: " << path; | |
59 | |
60 defaults_->SetDefaultValue(path, default_value); | |
61 | |
62 if (!registration_callback_.is_null()) | |
63 registration_callback_.Run(path, default_value); | |
64 } | |
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