third_party/blink/renderer/modules/indexeddb/idb_cursor_with_value.h

/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_CURSOR_WITH_VALUE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_CURSOR_WITH_VALUE_H_

#include <memory>
#include "third_party/blink/public/common/indexeddb/web_idb_types.h"
#include "third_party/blink/renderer/modules/indexeddb/idb_cursor.h"
#include "third_party/blink/renderer/modules/indexeddb/indexed_db.h"
#include "third_party/blink/renderer/modules/indexeddb/web_idb_cursor.h"

namespace blink {

class IDBRequest;
class IDBTransaction;

class IDBCursorWithValue final : public IDBCursor {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static IDBCursorWithValue* Create(std::unique_ptr<WebIDBCursor>,
                                    WebIDBCursorDirection,
                                    IDBRequest*,
                                    const Source&,
                                    IDBTransaction*);
  ~IDBCursorWithValue() override;

  // The value attribute defined in the IDL is simply implemented in IDBCursor
  // (but not exposed via its IDL). This is to make the implementation more
  // simple while matching what the spec says.

  bool IsKeyCursor() const override { return false; }
  bool IsCursorWithValue() const override { return true; }

 private:
  IDBCursorWithValue(std::unique_ptr<WebIDBCursor>,
                     WebIDBCursorDirection,
                     IDBRequest*,
                     const Source&,
                     IDBTransaction*);
};

DEFINE_TYPE_CASTS(IDBCursorWithValue,
                  IDBCursor,
                  cursor,
                  cursor->IsCursorWithValue(),
                  cursor.IsCursorWithValue());

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_CURSOR_WITH_VALUE_H_