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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/indexed_db/instance/factory_client.h"
#include <forward_list>
#include <memory>
#include <ostream>
#include <utility>
#include "base/check.h"
#include "base/check_op.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/task/sequenced_task_runner.h"
#include "content/browser/indexed_db/indexed_db_data_loss_info.h"
#include "content/browser/indexed_db/indexed_db_database_error.h"
#include "content/browser/indexed_db/instance/connection.h"
#include "mojo/public/cpp/bindings/pending_associated_remote.h"
#include "third_party/blink/public/mojom/indexeddb/indexeddb.mojom-shared.h"
using blink::IndexedDBDatabaseMetadata;
using blink::IndexedDBKey;
using std::swap;
namespace content::indexed_db {
FactoryClient::FactoryClient(
mojo::PendingAssociatedRemote<blink::mojom::IDBFactoryClient>
pending_client)
: data_loss_(blink::mojom::IDBDataLoss::None) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (pending_client.is_valid()) {
remote_.Bind(std::move(pending_client));
remote_.set_disconnect_handler(base::BindOnce(
&FactoryClient::OnConnectionError, base::Unretained(this)));
}
}
FactoryClient::~FactoryClient() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
void FactoryClient::OnError(const DatabaseError& error) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!complete_);
if (!remote_) {
return;
}
remote_->Error(error.code(), error.message());
complete_ = true;
}
void FactoryClient::OnBlocked(int64_t existing_version) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!complete_);
if (sent_blocked_) {
return;
}
sent_blocked_ = true;
if (remote_) {
remote_->Blocked(existing_version);
}
}
void FactoryClient::OnUpgradeNeeded(
int64_t old_version,
std::unique_ptr<Connection> connection,
const IndexedDBDatabaseMetadata& metadata,
const IndexedDBDataLossInfo& data_loss_info) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!complete_);
DCHECK(!connection_created_);
data_loss_ = data_loss_info.status;
connection_created_ = true;
if (!remote_) {
// Don't destroy the connection while the current transaction task queue is
// being processed.
base::SequencedTaskRunner::GetCurrentDefault()->DeleteSoon(
FROM_HERE, std::move(connection));
return;
}
mojo::PendingAssociatedRemote<blink::mojom::IDBDatabase> pending =
Connection::MakeSelfOwnedReceiverAndBindRemote(std::move(connection));
remote_->UpgradeNeeded(std::move(pending), old_version, data_loss_info.status,
data_loss_info.message, metadata);
}
void FactoryClient::OnOpenSuccess(std::unique_ptr<Connection> connection,
const IndexedDBDatabaseMetadata& metadata) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!complete_);
DCHECK_EQ(connection_created_, !connection);
// Only create a new connection if one was not previously sent in
// OnUpgradeNeeded.
std::unique_ptr<Connection> database_connection;
if (!connection_created_) {
database_connection = std::move(connection);
}
if (!remote_) {
if (database_connection) {
// Don't destroy the connection while the current transaction task queue
// is being processed.
base::SequencedTaskRunner::GetCurrentDefault()->DeleteSoon(
FROM_HERE, std::move(database_connection));
}
return;
}
mojo::PendingAssociatedRemote<blink::mojom::IDBDatabase> pending_remote;
if (database_connection) {
pending_remote = Connection::MakeSelfOwnedReceiverAndBindRemote(
std::move(database_connection));
}
remote_->OpenSuccess(std::move(pending_remote), metadata);
complete_ = true;
}
void FactoryClient::OnDeleteSuccess(int64_t old_version) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!complete_);
if (!remote_) {
return;
}
remote_->DeleteSuccess(old_version);
complete_ = true;
}
void FactoryClient::OnConnectionError() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
// Since the renderer-process `IDBFactory` is a self-owned receiver, a
// disconnection should only occur if the renderer process is gone.
remote_.reset();
}
} // namespace content::indexed_db
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