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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.
#ifndef CONTENT_BROWSER_INDEXED_DB_INSTANCE_FACTORY_CLIENT_H_
#define CONTENT_BROWSER_INDEXED_DB_INSTANCE_FACTORY_CLIENT_H_
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/check.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "content/browser/indexed_db/indexed_db_database_error.h"
#include "content/common/content_export.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "mojo/public/cpp/bindings/pending_associated_remote.h"
#include "storage/browser/blob/blob_storage_context.h"
#include "third_party/blink/public/common/indexeddb/indexeddb_key.h"
#include "third_party/blink/public/mojom/indexeddb/indexeddb.mojom.h"
namespace base {
class SequencedTaskRunner;
}
namespace blink {
struct IndexedDBDatabaseMetadata;
}
namespace content::indexed_db {
class Connection;
struct IndexedDBDataLossInfo;
// This class wraps the remote (renderer-side) object for handling database open
// or delete operations.
class CONTENT_EXPORT FactoryClient {
public:
explicit FactoryClient(
mojo::PendingAssociatedRemote<blink::mojom::IDBFactoryClient>
pending_client);
virtual ~FactoryClient();
FactoryClient(const FactoryClient&) = delete;
FactoryClient& operator=(const FactoryClient&) = delete;
// Factory::Open / DeleteDatabase
virtual void OnError(const DatabaseError& error);
virtual void OnBlocked(int64_t existing_version);
// Factory::Open
virtual void OnUpgradeNeeded(int64_t old_version,
std::unique_ptr<Connection> connection,
const blink::IndexedDBDatabaseMetadata& metadata,
const IndexedDBDataLossInfo& data_loss_info);
virtual void OnOpenSuccess(std::unique_ptr<Connection> connection,
const blink::IndexedDBDatabaseMetadata& metadata);
// Factory::DeleteDatabase
virtual void OnDeleteSuccess(int64_t old_version);
void OnConnectionError();
bool is_complete() const { return complete_; }
private:
// Stores if this callbacks object is complete and should not be called again.
bool complete_ = false;
// Depending on whether the database needs upgrading, we create connections in
// different spots. This stores if we've already created the connection so
// OnOpenSuccess() doesn't create an extra one.
bool connection_created_ = false;
// Used to assert that OnOpenSuccess() is only called if there was no data
// loss.
blink::mojom::IDBDataLoss data_loss_;
// The "blocked" event should be sent at most once per request.
bool sent_blocked_ = false;
scoped_refptr<base::SequencedTaskRunner> idb_runner_;
mojo::AssociatedRemote<blink::mojom::IDBFactoryClient> remote_;
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace content::indexed_db
#endif // CONTENT_BROWSER_INDEXED_DB_INSTANCE_FACTORY_CLIENT_H_
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