| // 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. |
| |
| #ifndef CONTENT_BROWSER_INDEXED_DB_CURSOR_IMPL_H_ |
| #define CONTENT_BROWSER_INDEXED_DB_CURSOR_IMPL_H_ |
| |
| #include <memory> |
| |
| #include "base/memory/ref_counted.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 content { |
| |
| class IndexedDBCursor; |
| class IndexedDBDispatcherHost; |
| |
| // Expected to be constructed, called, and destructed on the IO thread. |
| class CursorImpl : public blink::mojom::IDBCursor { |
| public: |
| CursorImpl(std::unique_ptr<IndexedDBCursor> cursor, |
| const url::Origin& origin, |
| IndexedDBDispatcherHost* dispatcher_host, |
| scoped_refptr<base::SequencedTaskRunner> idb_runner); |
| ~CursorImpl() override; |
| |
| // blink::mojom::IDBCursor implementation |
| void Advance(uint32_t count, |
| blink::mojom::IDBCursor::AdvanceCallback callback) override; |
| void CursorContinue( |
| const blink::IndexedDBKey& key, |
| const blink::IndexedDBKey& primary_key, |
| blink::mojom::IDBCallbacksAssociatedPtrInfo callbacks) override; |
| void Prefetch(int32_t count, |
| blink::mojom::IDBCallbacksAssociatedPtrInfo callbacks) override; |
| void PrefetchReset(int32_t used_prefetches, |
| int32_t unused_prefetches) override; |
| |
| private: |
| class IDBSequenceHelper; |
| |
| IDBSequenceHelper* helper_; |
| // This raw pointer is safe because all CursorImpl instances are owned by an |
| // IndexedDBDispatcherHost. |
| IndexedDBDispatcherHost* dispatcher_host_; |
| const url::Origin origin_; |
| scoped_refptr<base::SequencedTaskRunner> idb_runner_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CursorImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_INDEXED_DB_CURSOR_IMPL_H_ |