| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "cobalt/dom/local_storage_database.h" |
| |
| #include "base/debug/trace_event.h" |
| #include "cobalt/dom/storage_area.h" |
| #include "cobalt/storage/storage_manager.h" |
| #include "nb/memory_scope.h" |
| |
| namespace cobalt { |
| namespace dom { |
| |
| namespace { |
| |
| void LocalStorageInit(const storage::MemoryStore& memory_store) { |
| LOG(INFO) << "local_storage Init"; |
| UNREFERENCED_PARAMETER(memory_store); |
| } |
| |
| void LocalStorageReadValues( |
| const std::string& id, |
| const LocalStorageDatabase::ReadCompletionCallback& callback, |
| const storage::MemoryStore& memory_store) { |
| LOG(INFO) << "LocalStorageReadValues"; |
| TRACK_MEMORY_SCOPE("Storage"); |
| |
| scoped_ptr<storage::MemoryStore::LocalStorageMap> values( |
| new storage::MemoryStore::LocalStorageMap); |
| memory_store.ReadAllLocalStorage(id, values.get()); |
| callback.Run(values.Pass()); |
| } |
| |
| void LocalStorageWrite(const std::string& id, const std::string& key, |
| const std::string& value, |
| storage::MemoryStore* memory_store) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| memory_store->WriteToLocalStorage(id, key, value); |
| } |
| |
| void LocalStorageDelete(const std::string& id, const std::string& key, |
| storage::MemoryStore* memory_store) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| memory_store->DeleteFromLocalStorage(id, key); |
| } |
| |
| void LocalStorageClear(const std::string& id, |
| storage::MemoryStore* memory_store) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| memory_store->ClearLocalStorage(id); |
| } |
| } // namespace |
| |
| LocalStorageDatabase::LocalStorageDatabase(storage::StorageManager* storage) |
| : storage_(storage), initialized_(false) {} |
| |
| // Init is done lazily only once the first operation occurs. This is to avoid |
| // a potential wait while the storage manager loads from disk. |
| void LocalStorageDatabase::Init() { |
| if (!initialized_) { |
| storage_->WithReadOnlyMemoryStore(base::Bind(&LocalStorageInit)); |
| initialized_ = true; |
| } |
| } |
| |
| void LocalStorageDatabase::ReadAll(const std::string& id, |
| const ReadCompletionCallback& callback) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| Init(); |
| storage_->WithReadOnlyMemoryStore( |
| base::Bind(&LocalStorageReadValues, id, callback)); |
| } |
| |
| void LocalStorageDatabase::Write(const std::string& id, const std::string& key, |
| const std::string& value) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| Init(); |
| storage_->WithMemoryStore(base::Bind(&LocalStorageWrite, id, key, value)); |
| } |
| |
| void LocalStorageDatabase::Delete(const std::string& id, |
| const std::string& key) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| Init(); |
| storage_->WithMemoryStore(base::Bind(&LocalStorageDelete, id, key)); |
| } |
| |
| void LocalStorageDatabase::Clear(const std::string& id) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| Init(); |
| storage_->WithMemoryStore(base::Bind(&LocalStorageClear, id)); |
| } |
| |
| void LocalStorageDatabase::Flush(const base::Closure& callback) { |
| TRACK_MEMORY_SCOPE("Storage"); |
| storage_->FlushNow(callback); |
| } |
| |
| } // namespace dom |
| } // namespace cobalt |