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 "third_party/libaddressinput/chromium/chrome_storage_impl.h"
6
7#include "base/memory/scoped_ptr.h"
8#include "base/prefs/writeable_pref_store.h"
9#include "base/values.h"
10#include "third_party/libaddressinput/chromium/fallback_data_store.h"
11
12namespace autofill {
13
14ChromeStorageImpl::ChromeStorageImpl(WriteablePrefStore* store)
15    : backing_store_(store),
16      scoped_observer_(this) {
17  scoped_observer_.Add(backing_store_);
18}
19
20ChromeStorageImpl::~ChromeStorageImpl() {}
21
22void ChromeStorageImpl::Put(const std::string& key, std::string* data) {
23  DCHECK(data);
24  scoped_ptr<std::string> owned_data(data);
25  scoped_ptr<base::StringValue> string_value(
26      new base::StringValue(std::string()));
27  string_value->GetString()->swap(*owned_data);
28  backing_store_->SetValue(key, string_value.release());
29}
30
31void ChromeStorageImpl::Get(const std::string& key,
32                            const Storage::Callback& data_ready) const {
33  // |Get()| should not be const, so this is just a thunk that fixes that.
34  const_cast<ChromeStorageImpl*>(this)->DoGet(key, data_ready);
35}
36
37void ChromeStorageImpl::OnPrefValueChanged(const std::string& key) {}
38
39void ChromeStorageImpl::OnInitializationCompleted(bool succeeded) {
40  for (std::vector<Request*>::iterator iter = outstanding_requests_.begin();
41       iter != outstanding_requests_.end(); ++iter) {
42    DoGet((*iter)->key, (*iter)->callback);
43  }
44
45  outstanding_requests_.clear();
46}
47
48void ChromeStorageImpl::DoGet(const std::string& key,
49                              const Storage::Callback& data_ready) {
50  if (!backing_store_->IsInitializationComplete()) {
51    outstanding_requests_.push_back(new Request(key, data_ready));
52    return;
53  }
54
55  const base::Value* value = NULL;
56  scoped_ptr<std::string> data(new std::string);
57  if (backing_store_->GetValue(key, &value) && value->GetAsString(data.get())) {
58    data_ready(true, key, data.release());
59  } else if (FallbackDataStore::Get(key, data.get())) {
60    data_ready(true, key, data.release());
61  } else {
62    data_ready(false, key, NULL);
63  }
64}
65
66ChromeStorageImpl::Request::Request(const std::string& key,
67                                    const Callback& callback)
68    : key(key),
69      callback(callback) {}
70
71}  // namespace autofill
72