Port messages sent by WebIDBFactoryImpl to Mojo.

content/child/indexed_db/indexed_db_callbacks_impl.cc

+// Copyright 2016 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 "content/child/indexed_db/indexed_db_callbacks_impl.h"
+
+#include "content/child/indexed_db/indexed_db_dispatcher.h"
+#include "content/child/indexed_db/indexed_db_key_builders.h"
+#include "content/child/thread_safe_sender.h"
+#include "content/common/indexed_db/indexed_db_constants.h"
+#include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBCallbacks.h"
+#include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBDatabaseError.h"
+#include "third_party/WebKit/public/platform/modules/indexeddb/WebIDBMetadata.h"
+
+using blink::WebIDBCallbacks;
+using blink::WebIDBDatabase;
+using blink::WebIDBMetadata;
+using blink::WebString;
+using blink::WebVector;
+using indexed_db::mojom::DatabaseMetadataPtr;
+
+namespace content {
+
+namespace {
+
+WebIDBMetadata ConvertMetadata(DatabaseMetadataPtr metadata) {
+  WebIDBMetadata web_metadata;
+  web_metadata.id = metadata->id;
+  web_metadata.name = metadata->name;
+  web_metadata.version = metadata->version;
+  web_metadata.maxObjectStoreId = metadata->max_object_store_id;
+  web_metadata.objectStores =
+      WebVector<WebIDBMetadata::ObjectStore>(metadata->object_stores.size());
+
+  for (size_t i = 0; i < metadata->object_stores.size(); ++i) {
+    const indexed_db::mojom::ObjectStoreMetadataPtr& store_metadata =
+        metadata->object_stores[i];
+    WebIDBMetadata::ObjectStore& web_store_metadata =
+        web_metadata.objectStores[i];
+
+    web_store_metadata.id = store_metadata->id;
+    web_store_metadata.name = store_metadata->name;
+    web_store_metadata.keyPath =
+        WebIDBKeyPathBuilder::Build(store_metadata->key_path);
+    web_store_metadata.autoIncrement = store_metadata->auto_increment;
+    web_store_metadata.maxIndexId = store_metadata->max_index_id;
+    web_store_metadata.indexes =
+        WebVector<WebIDBMetadata::Index>(store_metadata->indexes.size());
+
+    for (size_t j = 0; j < store_metadata->indexes.size(); ++j) {
+      const indexed_db::mojom::IndexMetadataPtr& index_metadata =
+          store_metadata->indexes[j];
+      WebIDBMetadata::Index& web_index_metadata = web_store_metadata.indexes[j];
+
+      web_index_metadata.id = index_metadata->id;
+      web_index_metadata.name = index_metadata->name;
+      web_index_metadata.keyPath =
+          WebIDBKeyPathBuilder::Build(index_metadata->key_path);
+      web_index_metadata.unique = index_metadata->unique;
+      web_index_metadata.multiEntry = index_metadata->multi_entry;
+    }
+  }
+
+  return web_metadata;
+}
+
+}  // namespace
+
+class IndexedDBCallbacksImpl::InternalState {
+ public:
+  InternalState(blink::WebIDBCallbacks* callbacks,
+                scoped_refptr<ThreadSafeSender> thread_safe_sender);
+  ~InternalState();
+
+  void Blocked(int64_t existing_version);
+  void Error(int32_t code, const base::string16& message);
+  void SuccessDatabase(int32_t database_id,
+                       indexed_db::mojom::DatabaseMetadataPtr metadata);
+  void SuccessInteger(int64_t value);
+  void SuccessStringList(const std::vector<base::string16>& value);
+  void UpgradeNeeded(int32_t database_id,
+                     int64_t old_version,
+                     indexed_db::mojom::DataLoss data_loss,
+                     const std::string& data_loss_message,
+                     indexed_db::mojom::DatabaseMetadataPtr metadata);
+
+ private:
+  std::unique_ptr<WebIDBCallbacks> callbacks_;
+  scoped_refptr<ThreadSafeSender> thread_safe_sender_;
+};
+
+IndexedDBCallbacksImpl::IndexedDBCallbacksImpl(
+    WebIDBCallbacks* callbacks,
+    scoped_refptr<ThreadSafeSender> thread_safe_sender)
+    : callback_runner_(base::ThreadTaskRunnerHandle::Get()), binding_(this) {
+  internal_state_ = new InternalState(callbacks, std::move(thread_safe_sender));
+}
+
+IndexedDBCallbacksImpl::~IndexedDBCallbacksImpl() {
+  callback_runner_->DeleteSoon(FROM_HERE, internal_state_);
+}
+
+void IndexedDBCallbacksImpl::Bind(
+    indexed_db::mojom::CallbacksAssociatedPtrInfo* ptr_info,
+    mojo::AssociatedGroup* associated_group) {
+  binding_.Bind(ptr_info, associated_group);
+  binding_.set_connection_error_handler(base::Bind(
+      &IndexedDBCallbacksImpl::OnConnectionError, base::Unretained(this)));
+}
+
+void IndexedDBCallbacksImpl::OnConnectionError() {
+  delete this;
+}
+
+void IndexedDBCallbacksImpl::Blocked(int64_t existing_version) {
+  callback_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&InternalState::Blocked, base::Unretained(internal_state_),
+                 existing_version));
+}
+
+void IndexedDBCallbacksImpl::Error(int32_t code,
+                                   const base::string16& message) {
+  callback_runner_->PostTask(
+      FROM_HERE, base::Bind(&InternalState::Error,
+                            base::Unretained(internal_state_), code, message));
+}
+
+void IndexedDBCallbacksImpl::SuccessDatabase(int32_t database_id,
+                                             DatabaseMetadataPtr metadata) {
+  callback_runner_->PostTask(
+      FROM_HERE, base::Bind(&InternalState::SuccessDatabase,
+                            base::Unretained(internal_state_), database_id,
+                            base::Passed(&metadata)));
+}
+
+void IndexedDBCallbacksImpl::SuccessInteger(int64_t value) {
+  callback_runner_->PostTask(
+      FROM_HERE, base::Bind(&InternalState::SuccessInteger,
+                            base::Unretained(internal_state_), value));
+}
+
+void IndexedDBCallbacksImpl::SuccessStringList(
+    const std::vector<base::string16>& value) {
+  callback_runner_->PostTask(
+      FROM_HERE, base::Bind(&InternalState::SuccessStringList,
+                            base::Unretained(internal_state_), value));
+}
+
+void IndexedDBCallbacksImpl::UpgradeNeeded(
+    int32_t database_id,
+    int64_t old_version,
+    indexed_db::mojom::DataLoss data_loss,
+    const std::string& data_loss_message,
+    DatabaseMetadataPtr metadata) {
+  callback_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&InternalState::UpgradeNeeded,
+                 base::Unretained(internal_state_), database_id, old_version,
+                 data_loss, data_loss_message, base::Passed(&metadata)));
+}
+
+IndexedDBCallbacksImpl::InternalState::InternalState(
+    blink::WebIDBCallbacks* callbacks,
+    scoped_refptr<ThreadSafeSender> thread_safe_sender)
+    : callbacks_(callbacks),
+      thread_safe_sender_(std::move(thread_safe_sender)) {}
+
+IndexedDBCallbacksImpl::InternalState::~InternalState() {}
+
+void IndexedDBCallbacksImpl::InternalState::Blocked(int64_t existing_version) {
+  callbacks_->onBlocked(existing_version);
+}
+
+void IndexedDBCallbacksImpl::InternalState::Error(
+    int32_t code,
+    const base::string16& message) {
+  callbacks_->onError(blink::WebIDBDatabaseError(code, message));
+}
+
+void IndexedDBCallbacksImpl::InternalState::SuccessDatabase(
+    int32_t database_id,
+    DatabaseMetadataPtr metadata) {
+  WebIDBDatabase* database = nullptr;
+  if (database_id != kNoDatabase) {
+    IndexedDBDispatcher* dispatcher =
+        IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
+    database = dispatcher->RegisterDatabase(database_id);
+  }
+  callbacks_->onSuccess(database, ConvertMetadata(std::move(metadata)));
+}
+
+void IndexedDBCallbacksImpl::InternalState::SuccessInteger(int64_t value) {
+  callbacks_->onSuccess(value);
+}
+
+void IndexedDBCallbacksImpl::InternalState::SuccessStringList(
+    const std::vector<base::string16>& value) {
+  callbacks_->onSuccess(WebVector<WebString>(value));
+}
+
+void IndexedDBCallbacksImpl::InternalState::UpgradeNeeded(
+    int32_t database_id,
+    int64_t old_version,
+    indexed_db::mojom::DataLoss data_loss,
+    const std::string& data_loss_message,
+    DatabaseMetadataPtr metadata) {
+  IndexedDBDispatcher* dispatcher =
+      IndexedDBDispatcher::ThreadSpecificInstance(thread_safe_sender_.get());
+  WebIDBDatabase* database = dispatcher->RegisterDatabase(database_id);
+  callbacks_->onUpgradeNeeded(old_version, database,
+                              ConvertMetadata(std::move(metadata)),
+                              static_cast<blink::WebIDBDataLoss>(data_loss),
+                              WebString::fromUTF8(data_loss_message));
+}
+
+}  // namespace content