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 IDBKeyRange_h 27 #define IDBKeyRange_h 28 29 #include "bindings/v8/Dictionary.h" 30 #include "bindings/v8/ScriptWrappable.h" 31 #include "modules/indexeddb/IDBKey.h" 32 #include "wtf/PassRefPtr.h" 33 #include "wtf/RefCounted.h" 34 35 namespace WebCore { 36 37 class ExceptionState; 38 39 class IDBKeyRange : public GarbageCollectedFinalized<IDBKeyRange>, public ScriptWrappable { 40 public: 41 enum LowerBoundType { 42 LowerBoundOpen, 43 LowerBoundClosed 44 }; 45 enum UpperBoundType { 46 UpperBoundOpen, 47 UpperBoundClosed 48 }; 49 50 static IDBKeyRange* create(IDBKey* lower, IDBKey* upper, LowerBoundType lowerType, UpperBoundType upperType) 51 { 52 return new IDBKeyRange(lower, upper, lowerType, upperType); 53 } 54 // Null if the script value is null or undefined, the range if it is one, otherwise tries to convert to a key and throws if it fails. 55 static IDBKeyRange* fromScriptValue(ExecutionContext*, const ScriptValue&, ExceptionState&); 56 57 ~IDBKeyRange() { } 58 void trace(Visitor*); 59 60 // Implement the IDBKeyRange IDL 61 IDBKey* lower() const { return m_lower.get(); } 62 IDBKey* upper() const { return m_upper.get(); } 63 64 ScriptValue lowerValue(ScriptState*) const; 65 ScriptValue upperValue(ScriptState*) const; 66 bool lowerOpen() const { return m_lowerType == LowerBoundOpen; } 67 bool upperOpen() const { return m_upperType == UpperBoundOpen; } 68 69 static IDBKeyRange* only(ExecutionContext*, const ScriptValue& key, ExceptionState&); 70 static IDBKeyRange* lowerBound(ExecutionContext*, const ScriptValue& bound, bool open, ExceptionState&); 71 static IDBKeyRange* upperBound(ExecutionContext*, const ScriptValue& bound, bool open, ExceptionState&); 72 static IDBKeyRange* bound(ExecutionContext*, const ScriptValue& lower, const ScriptValue& upper, bool lowerOpen, bool upperOpen, ExceptionState&); 73 74 static IDBKeyRange* only(IDBKey* value, ExceptionState&); 75 76 private: 77 IDBKeyRange(IDBKey* lower, IDBKey* upper, LowerBoundType lowerType, UpperBoundType upperType); 78 79 Member<IDBKey> m_lower; 80 Member<IDBKey> m_upper; 81 LowerBoundType m_lowerType; 82 UpperBoundType m_upperType; 83 }; 84 85 } // namespace WebCore 86 87 #endif // IDBKeyRange_h 88
