1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_DATABASE_CALLBACKS_H_
6 #define CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_DATABASE_CALLBACKS_H_
7 
8 #include <stdint.h>
9 
10 #include <memory>
11 
12 #include "base/macros.h"
13 #include "base/memory/scoped_refptr.h"
14 #include "base/sequence_checker.h"
15 #include "content/common/content_export.h"
16 #include "mojo/public/cpp/bindings/associated_remote.h"
17 #include "mojo/public/cpp/bindings/pending_associated_remote.h"
18 #include "third_party/blink/public/mojom/indexeddb/indexeddb.mojom.h"
19 
20 namespace content {
21 class IndexedDBContextImpl;
22 class IndexedDBDatabaseError;
23 class IndexedDBTransaction;
24 
25 // Expected to be constructed/called/deleted on IDB sequence.
26 class CONTENT_EXPORT IndexedDBDatabaseCallbacks
27     : public base::RefCounted<IndexedDBDatabaseCallbacks> {
28  public:
29   IndexedDBDatabaseCallbacks(
30       scoped_refptr<IndexedDBContextImpl> context,
31       mojo::PendingAssociatedRemote<blink::mojom::IDBDatabaseCallbacks>
32           callbacks_remote,
33       base::SequencedTaskRunner* idb_runner);
34 
35   virtual void OnForcedClose();
36   virtual void OnVersionChange(int64_t old_version, int64_t new_version);
37 
38   virtual void OnAbort(const IndexedDBTransaction& transaction,
39                        const IndexedDBDatabaseError& error);
40   virtual void OnComplete(const IndexedDBTransaction& transaction);
41   virtual void OnDatabaseChange(blink::mojom::IDBObserverChangesPtr changes);
42 
43   void OnConnectionError();
44 
45  protected:
46   virtual ~IndexedDBDatabaseCallbacks();
47 
48  private:
49   friend class base::RefCounted<IndexedDBDatabaseCallbacks>;
50 
51   bool complete_ = false;
52   scoped_refptr<IndexedDBContextImpl> indexed_db_context_;
53   mojo::AssociatedRemote<blink::mojom::IDBDatabaseCallbacks> callbacks_;
54   SEQUENCE_CHECKER(sequence_checker_);
55 
56   DISALLOW_COPY_AND_ASSIGN(IndexedDBDatabaseCallbacks);
57 };
58 
59 }  // namespace content
60 
61 #endif  // CONTENT_BROWSER_INDEXED_DB_INDEXED_DB_DATABASE_CALLBACKS_H_
62