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// Copyright 2014 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.
#include "third_party/libaddressinput/chromium/chrome_storage_impl.h"
#include "base/memory/scoped_ptr.h"
#include "base/prefs/writeable_pref_store.h"
#include "base/values.h"
#include "third_party/libaddressinput/chromium/fallback_data_store.h"
namespace autofill {
ChromeStorageImpl::ChromeStorageImpl(WriteablePrefStore* store)
: backing_store_(store),
scoped_observer_(this) {
scoped_observer_.Add(backing_store_);
}
ChromeStorageImpl::~ChromeStorageImpl() {}
void ChromeStorageImpl::Put(const std::string& key, std::string* data) {
DCHECK(data);
scoped_ptr<std::string> owned_data(data);
scoped_ptr<base::StringValue> string_value(
new base::StringValue(std::string()));
string_value->GetString()->swap(*owned_data);
backing_store_->SetValue(key, string_value.release());
}
void ChromeStorageImpl::Get(const std::string& key,
const Storage::Callback& data_ready) const {
// |Get()| should not be const, so this is just a thunk that fixes that.
const_cast<ChromeStorageImpl*>(this)->DoGet(key, data_ready);
}
void ChromeStorageImpl::OnPrefValueChanged(const std::string& key) {}
void ChromeStorageImpl::OnInitializationCompleted(bool succeeded) {
for (std::vector<Request*>::iterator iter = outstanding_requests_.begin();
iter != outstanding_requests_.end(); ++iter) {
DoGet((*iter)->key, (*iter)->callback);
}
outstanding_requests_.clear();
}
void ChromeStorageImpl::DoGet(const std::string& key,
const Storage::Callback& data_ready) {
if (!backing_store_->IsInitializationComplete()) {
outstanding_requests_.push_back(new Request(key, data_ready));
return;
}
const base::Value* value = NULL;
scoped_ptr<std::string> data(new std::string);
if (backing_store_->GetValue(key, &value) && value->GetAsString(data.get())) {
data_ready(true, key, data.release());
} else if (FallbackDataStore::Get(key, data.get())) {
data_ready(true, key, data.release());
} else {
data_ready(false, key, NULL);
}
}
ChromeStorageImpl::Request::Request(const std::string& key,
const Callback& callback)
: key(key),
callback(callback) {}
} // namespace autofill
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