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1 // Copyright 2014 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/tracked/tracked_atomic_preference.h" | |
6 | |
7 #include "base/values.h" | |
8 #include "chrome/browser/prefs/tracked/pref_hash_store_transaction.h" | |
9 #include "chrome/browser/prefs/tracked/tracked_preference_validation_delegate.h" | |
10 | |
11 TrackedAtomicPreference::TrackedAtomicPreference( | |
12 const std::string& pref_path, | |
13 size_t reporting_id, | |
14 size_t reporting_ids_count, | |
15 PrefHashFilter::EnforcementLevel enforcement_level, | |
16 PrefHashFilter::ValueType value_type, | |
17 TrackedPreferenceValidationDelegate* delegate) | |
18 : pref_path_(pref_path), | |
19 helper_(pref_path, reporting_id, reporting_ids_count, enforcement_level, | |
20 value_type), | |
21 delegate_(delegate) { | |
22 } | |
23 | |
24 void TrackedAtomicPreference::OnNewValue( | |
25 const base::Value* value, | |
26 PrefHashStoreTransaction* transaction) const { | |
27 transaction->StoreHash(pref_path_, value); | |
28 } | |
29 | |
30 bool TrackedAtomicPreference::EnforceAndReport( | |
31 base::DictionaryValue* pref_store_contents, | |
32 PrefHashStoreTransaction* transaction) const { | |
33 const base::Value* value = NULL; | |
34 pref_store_contents->Get(pref_path_, &value); | |
35 PrefHashStoreTransaction::ValueState value_state = | |
36 transaction->CheckValue(pref_path_, value); | |
37 | |
38 helper_.ReportValidationResult(value_state); | |
39 | |
40 TrackedPreferenceHelper::ResetAction reset_action = | |
41 helper_.GetAction(value_state); | |
42 if (delegate_) { | |
43 delegate_->OnAtomicPreferenceValidation( | |
44 pref_path_, value, value_state, helper_.IsPersonal()); | |
45 } | |
46 helper_.ReportAction(reset_action); | |
47 | |
48 bool was_reset = false; | |
49 if (reset_action == TrackedPreferenceHelper::DO_RESET) { | |
50 pref_store_contents->RemovePath(pref_path_, NULL); | |
51 was_reset = true; | |
52 } | |
53 | |
54 if (value_state != PrefHashStoreTransaction::UNCHANGED) { | |
55 // Store the hash for the new value (whether it was reset or not). | |
56 const base::Value* new_value = NULL; | |
57 pref_store_contents->Get(pref_path_, &new_value); | |
58 transaction->StoreHash(pref_path_, new_value); | |
59 } | |
60 | |
61 return was_reset; | |
62 } | |
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