1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef WebIDBCursor_h 27 #define WebIDBCursor_h 28 29 #include "WebCommon.h" 30 #include "WebIDBCallbacks.h" 31 #include "WebIDBKey.h" 32 #include "WebString.h" 33 34 namespace WebKit { 35 36 // See comment in WebIDBFactory for a high level overview these classes. 37 class WebIDBCursor { 38 public: 39 virtual ~WebIDBCursor() { } 40 41 enum Direction { 42 Next = 0, 43 NextNoDuplicate = 1, 44 Prev = 2, 45 PrevNoDuplicate = 3, 46 }; 47 48 virtual void advance(unsigned long, WebIDBCallbacks*) { WEBKIT_ASSERT_NOT_REACHED(); } 49 virtual void continueFunction(const WebIDBKey&, WebIDBCallbacks*) { WEBKIT_ASSERT_NOT_REACHED(); } 50 virtual void postSuccessHandlerCallback() { } // Only used in frontend. 51 52 protected: 53 WebIDBCursor() { } 54 }; 55 56 } // namespace WebKit 57 58 #endif // WebIDBCursor_h 59
