1 /* 2 * Copyright (C) 2010 Apple 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 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef NPVariantData_h 27 #define NPVariantData_h 28 29 #if ENABLE(PLUGIN_PROCESS) 30 31 #include <wtf/text/CString.h> 32 33 namespace CoreIPC { 34 class ArgumentDecoder; 35 class ArgumentEncoder; 36 } 37 38 namespace WebKit { 39 40 // The CoreIPC representation of an NPVariant. 41 42 class NPVariantData { 43 public: 44 enum Type { 45 Void, 46 Null, 47 Bool, 48 Int32, 49 Double, 50 String, 51 LocalNPObjectID, 52 RemoteNPObjectID, 53 }; 54 NPVariantData(); 55 56 static NPVariantData makeVoid(); 57 static NPVariantData makeNull(); 58 static NPVariantData makeBool(bool value); 59 static NPVariantData makeInt32(int32_t value); 60 static NPVariantData makeDouble(double value); 61 static NPVariantData makeString(const char* string, unsigned length); 62 static NPVariantData makeLocalNPObjectID(uint64_t value); 63 static NPVariantData makeRemoteNPObjectID(uint64_t value); 64 type()65 Type type() const { return static_cast<Type>(m_type); } 66 boolValue()67 bool boolValue() const 68 { 69 ASSERT(type() == NPVariantData::Bool); 70 return m_boolValue; 71 } 72 int32Value()73 int32_t int32Value() const 74 { 75 ASSERT(type() == NPVariantData::Int32); 76 return m_int32Value; 77 } 78 doubleValue()79 double doubleValue() const 80 { 81 ASSERT(type() == NPVariantData::Double); 82 return m_doubleValue; 83 } 84 stringValue()85 const CString& stringValue() const 86 { 87 ASSERT(type() == NPVariantData::String); 88 return m_stringValue; 89 } 90 localNPObjectIDValue()91 uint64_t localNPObjectIDValue() const 92 { 93 ASSERT(type() == NPVariantData::LocalNPObjectID); 94 return m_localNPObjectIDValue; 95 } 96 remoteNPObjectIDValue()97 uint64_t remoteNPObjectIDValue() const 98 { 99 ASSERT(type() == NPVariantData::RemoteNPObjectID); 100 return m_remoteNPObjectIDValue; 101 } 102 103 void encode(CoreIPC::ArgumentEncoder*) const; 104 static bool decode(CoreIPC::ArgumentDecoder*, NPVariantData&); 105 106 private: 107 uint32_t m_type; 108 bool m_boolValue; 109 int32_t m_int32Value; 110 double m_doubleValue; 111 CString m_stringValue; 112 uint64_t m_localNPObjectIDValue; 113 uint64_t m_remoteNPObjectIDValue; 114 }; 115 116 } // namespace WebKit 117 118 #endif // ENABLE(PLUGIN_PROCESS) 119 120 #endif // NPVariantData_h 121