Migrate the IndexedDB backend from Blink to Chromium

content/browser/indexed_db/webidbdatabase_impl.cc

+// Copyright (c) 2013 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 "webidbdatabase_impl.h"
+
+#include "base/logging.h"
+#include "content/browser/indexed_db/indexed_db_callbacks_wrapper.h"
+#include "content/browser/indexed_db/indexed_db_cursor.h"
+#include "content/browser/indexed_db/indexed_db_database.h"
+#include "content/browser/indexed_db/indexed_db_metadata.h"
+#include "content/common/indexed_db/indexed_db_key_range.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebData.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebIDBCallbacks.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebIDBDatabaseCallbacks.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebIDBDatabaseError.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebIDBKey.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebIDBKeyRange.h"
+#include "third_party/WebKit/Source/Platform/chromium/public/WebIDBMetadata.h"
+
+using WebKit::WebString;
+using WebKit::WebIDBKey;
+using WebKit::WebData;
+using WebKit::WebIDBKeyPath;
+using WebKit::WebIDBKeyRange;
+using WebKit::WebIDBDatabaseCallbacks;
+using WebKit::WebIDBCallbacks;
+using WebKit::WebVector;
+using WebKit::WebIDBDatabaseError;
+
+namespace content {
+
+WebIDBDatabaseImpl::WebIDBDatabaseImpl(
+    scoped_refptr<IndexedDBDatabase> database_backend,
+    scoped_refptr<IndexedDBDatabaseCallbacksWrapper> database_callbacks)
+    : database_backend_(database_backend),
+      database_callbacks_(database_callbacks) {}
+
+WebIDBDatabaseImpl::~WebIDBDatabaseImpl() {}
+
+void WebIDBDatabaseImpl::createObjectStore(long long transaction_id,
+                                           long long object_store_id,
+                                           const WebString& name,
+                                           const WebIDBKeyPath& key_path,
+                                           bool auto_increment) {
+  database_backend_->CreateObjectStore(transaction_id,
+                                       object_store_id,
+                                       name,
+                                       IndexedDBKeyPath(key_path),
+                                       auto_increment);
+}
+
+void WebIDBDatabaseImpl::deleteObjectStore(long long transaction_id,
+                                           long long object_store_id) {
+  database_backend_->DeleteObjectStore(transaction_id, object_store_id);
+}
+
+void WebIDBDatabaseImpl::createTransaction(
+    long long id,
+    WebIDBDatabaseCallbacks*,
+    const WebVector<long long>& object_store_ids,
+    unsigned short mode) {
+  if (!database_callbacks_)
+    return;
+  std::vector<int64_t> object_store_id_list(object_store_ids.size());
+  for (size_t i = 0; i < object_store_ids.size(); ++i)
+    object_store_id_list[i] = object_store_ids[i];
+  database_backend_->CreateTransaction(
+      id, database_callbacks_.get(), object_store_id_list, mode);
+}
+
+void WebIDBDatabaseImpl::close() {
+  // Use the callbacks passed in to the constructor so that the backend in
+  // multi-process chromium knows which database connection is closing.
+  if (!database_callbacks_)
+    return;
+  database_backend_->Close(database_callbacks_);
+  database_callbacks_ = NULL;
+}
+
+void WebIDBDatabaseImpl::forceClose() {
+  if (!database_callbacks_)
+    return;
+  database_backend_->Close(database_callbacks_);
+  database_callbacks_->OnForcedClose();
+  database_callbacks_ = NULL;
+}
+
+void WebIDBDatabaseImpl::abort(long long transaction_id) {
+  if (database_backend_)
+    database_backend_->Abort(transaction_id);
+}
+
+void WebIDBDatabaseImpl::abort(long long transaction_id,
+                               const WebIDBDatabaseError& error) {
+  if (database_backend_)
+    database_backend_->Abort(transaction_id,
+                             IndexedDBDatabaseError::Create(error));
+}
+
+void WebIDBDatabaseImpl::commit(long long transaction_id) {
+  if (database_backend_)
+    database_backend_->Commit(transaction_id);
+}
+
+void WebIDBDatabaseImpl::openCursor(long long transaction_id,
+                                    long long object_store_id,
+                                    long long index_id,
+                                    const WebIDBKeyRange& key_range,
+                                    unsigned short direction,
+                                    bool key_only,
+                                    TaskType task_type,
+                                    WebIDBCallbacks* callbacks) {
+  if (database_backend_)
+    database_backend_->OpenCursor(
+        transaction_id,
+        object_store_id,
+        index_id,
+        make_scoped_ptr(new IndexedDBKeyRange(key_range)),
+        static_cast<IndexedDB::CursorDirection>(direction),
+        key_only,
+        static_cast<IndexedDBDatabase::TaskType>(task_type),
+        IndexedDBCallbacksWrapper::Create(callbacks));
+}
+
+void WebIDBDatabaseImpl::count(long long transaction_id,
+                               long long object_store_id,
+                               long long index_id,
+                               const WebIDBKeyRange& key_range,
+                               WebIDBCallbacks* callbacks) {
+  if (database_backend_)
+    database_backend_->Count(transaction_id,
+                             object_store_id,
+                             index_id,
+                             make_scoped_ptr(new IndexedDBKeyRange(key_range)),
+                             IndexedDBCallbacksWrapper::Create(callbacks));
+}
+
+void WebIDBDatabaseImpl::get(long long transaction_id,
+                             long long object_store_id,
+                             long long index_id,
+                             const WebIDBKeyRange& key_range,
+                             bool key_only,
+                             WebIDBCallbacks* callbacks) {
+  if (database_backend_)
+    database_backend_->Get(transaction_id,
+                           object_store_id,
+                           index_id,
+                           make_scoped_ptr(new IndexedDBKeyRange(key_range)),
+                           key_only,
+                           IndexedDBCallbacksWrapper::Create(callbacks));
+}
+
+void WebIDBDatabaseImpl::put(long long transaction_id,
+                             long long object_store_id,
+                             const WebData& value,
+                             const WebIDBKey& key,
+                             PutMode put_mode,
+                             WebIDBCallbacks* callbacks,
+                             const WebVector<long long>& web_index_ids,
+                             const WebVector<WebIndexKeys>& web_index_keys) {
+  if (!database_backend_)
+    return;
+
+  DCHECK(web_index_ids.size() == web_index_keys.size());
+  std::vector<int64_t> index_ids(web_index_ids.size());
+  std::vector<IndexedDBDatabase::IndexKeys> index_keys(web_index_keys.size());
+
+  for (size_t i = 0; i < web_index_ids.size(); ++i) {
+    index_ids[i] = web_index_ids[i];
+    IndexedDBKey::KeyArray index_key_list;
+    for (size_t j = 0; j < web_index_keys[i].size(); ++j)
+      index_key_list.push_back(IndexedDBKey(web_index_keys[i][j]));
+    index_keys[i] = index_key_list;
+  }
+
+  std::vector<char> value_buffer(value.data(), value.data() + value.size());
+  database_backend_->Put(transaction_id,
+                         object_store_id,
+                         &value_buffer,
+                         make_scoped_ptr(new IndexedDBKey(key)),
+                         static_cast<IndexedDBDatabase::PutMode>(put_mode),
+                         IndexedDBCallbacksWrapper::Create(callbacks),
+                         index_ids,
+                         index_keys);
+}
+
+void WebIDBDatabaseImpl::setIndexKeys(
+    long long transaction_id,
+    long long object_store_id,
+    const WebIDBKey& primary_key,
+    const WebVector<long long>& web_index_ids,
+    const WebVector<WebIndexKeys>& web_index_keys) {
+  if (!database_backend_)
+    return;
+
+  DCHECK(web_index_ids.size() == web_index_keys.size());
+  std::vector<int64_t> index_ids(web_index_ids.size());
+  std::vector<IndexedDBDatabase::IndexKeys> index_keys(web_index_keys.size());
+
+  for (size_t i = 0; i < web_index_ids.size(); ++i) {
+    index_ids[i] = web_index_ids[i];
+    IndexedDBKey::KeyArray index_key_list;
+    for (size_t j = 0; j < web_index_keys[i].size(); ++j)
+      index_key_list.push_back(IndexedDBKey(web_index_keys[i][j]));
+    index_keys[i] = index_key_list;
+  }
+  database_backend_->SetIndexKeys(
+      transaction_id,
+      object_store_id,
+      make_scoped_ptr(new IndexedDBKey(primary_key)),
+      index_ids,
+      index_keys);
+}
+
+void WebIDBDatabaseImpl::setIndexesReady(
+    long long transaction_id,
+    long long object_store_id,
+    const WebVector<long long>& web_index_ids) {
+  if (!database_backend_)
+    return;
+
+  std::vector<int64_t> index_ids(web_index_ids.size());
+  for (size_t i = 0; i < web_index_ids.size(); ++i)
+    index_ids[i] = web_index_ids[i];
+  database_backend_->SetIndexesReady(
+      transaction_id, object_store_id, index_ids);
+}
+
+void WebIDBDatabaseImpl::deleteRange(long long transaction_id,
+                                     long long object_store_id,
+                                     const WebIDBKeyRange& key_range,
+                                     WebIDBCallbacks* callbacks) {
+  if (database_backend_)
+    database_backend_->DeleteRange(
+        transaction_id,
+        object_store_id,
+        make_scoped_ptr(new IndexedDBKeyRange(key_range)),
+        IndexedDBCallbacksWrapper::Create(callbacks));
+}
+
+void WebIDBDatabaseImpl::clear(long long transaction_id,
+                               long long object_store_id,
+                               WebIDBCallbacks* callbacks) {
+  if (database_backend_)
+    database_backend_->Clear(transaction_id,
+                             object_store_id,
+                             IndexedDBCallbacksWrapper::Create(callbacks));
+}
+
+void WebIDBDatabaseImpl::createIndex(long long transaction_id,
+                                     long long object_store_id,
+                                     long long index_id,
+                                     const WebString& name,
+                                     const WebIDBKeyPath& key_path,
+                                     bool unique,
+                                     bool multi_entry) {
+  if (database_backend_)
+    database_backend_->CreateIndex(transaction_id,
+                                   object_store_id,
+                                   index_id,
+                                   name,
+                                   IndexedDBKeyPath(key_path),
+                                   unique,
+                                   multi_entry);
+}
+
+void WebIDBDatabaseImpl::deleteIndex(long long transaction_id,
+                                     long long object_store_id,
+                                     long long index_id) {
+  if (database_backend_)
+    database_backend_->DeleteIndex(transaction_id, object_store_id, index_id);
+}
+
+}  // namespace WebKit