third_party/libaddressinput/chromium/chrome_storage_impl.cc

   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
  12 namespace autofill {
  13
  14 ChromeStorageImpl::ChromeStorageImpl(WriteablePrefStore* store)
  15     : backing_store_(store),
  16       scoped_observer_(this) {
  17   scoped_observer_.Add(backing_store_);
  18 }
  19
  20 ChromeStorageImpl::~ChromeStorageImpl() {}
  21
  22 void 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
  31 void 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
  37 void ChromeStorageImpl::OnPrefValueChanged(const std::string& key) {}
  38
  39 void 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
  48 void 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
  66 ChromeStorageImpl::Request::Request(const std::string& key,
  67                                     const Callback& callback)
  68     : key(key),
  69       callback(callback) {}
  70
  71 }  // namespace autofill