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 #include "config.h" 27 #include "NPVariantData.h" 28 29 #if ENABLE(PLUGIN_PROCESS) 30 31 #include "ArgumentDecoder.h" 32 #include "ArgumentEncoder.h" 33 #include "WebCoreArgumentCoders.h" 34 #include <WebCore/NotImplemented.h> 35 36 namespace WebKit { 37 38 NPVariantData::NPVariantData() 39 : m_type(NPVariantData::Void) 40 , m_boolValue(false) 41 , m_int32Value(0) 42 , m_doubleValue(0) 43 , m_localNPObjectIDValue(0) 44 , m_remoteNPObjectIDValue(0) 45 { 46 } 47 48 NPVariantData NPVariantData::makeVoid() 49 { 50 return NPVariantData(); 51 } 52 53 NPVariantData NPVariantData::makeNull() 54 { 55 NPVariantData npVariantData; 56 57 npVariantData.m_type = NPVariantData::Null; 58 59 return npVariantData; 60 } 61 62 NPVariantData NPVariantData::makeBool(bool value) 63 { 64 NPVariantData npVariantData; 65 66 npVariantData.m_type = NPVariantData::Bool; 67 npVariantData.m_boolValue = value; 68 69 return npVariantData; 70 } 71 72 NPVariantData NPVariantData::makeInt32(int32_t value) 73 { 74 NPVariantData npVariantData; 75 76 npVariantData.m_type = NPVariantData::Int32; 77 npVariantData.m_int32Value = value; 78 79 return npVariantData; 80 } 81 82 NPVariantData NPVariantData::makeDouble(double value) 83 { 84 NPVariantData npVariantData; 85 86 npVariantData.m_type = NPVariantData::Double; 87 npVariantData.m_doubleValue = value; 88 89 return npVariantData; 90 } 91 92 NPVariantData NPVariantData::makeString(const char* string, unsigned length) 93 { 94 NPVariantData npVariantData; 95 96 npVariantData.m_type = NPVariantData::String; 97 npVariantData.m_stringValue = CString(string, length); 98 99 return npVariantData; 100 } 101 102 NPVariantData NPVariantData::makeLocalNPObjectID(uint64_t value) 103 { 104 NPVariantData npVariantData; 105 106 npVariantData.m_type = NPVariantData::LocalNPObjectID; 107 npVariantData.m_localNPObjectIDValue = value; 108 109 return npVariantData; 110 } 111 112 NPVariantData NPVariantData::makeRemoteNPObjectID(uint64_t value) 113 { 114 NPVariantData npVariantData; 115 116 npVariantData.m_type = NPVariantData::RemoteNPObjectID; 117 npVariantData.m_remoteNPObjectIDValue = value; 118 119 return npVariantData; 120 } 121 122 void NPVariantData::encode(CoreIPC::ArgumentEncoder* encoder) const 123 { 124 encoder->encode(m_type); 125 126 switch (type()) { 127 case NPVariantData::Void: 128 case NPVariantData::Null: 129 break; 130 case NPVariantData::Bool: 131 encoder->encode(boolValue()); 132 break; 133 case NPVariantData::Int32: 134 encoder->encode(int32Value()); 135 break; 136 case NPVariantData::Double: 137 encoder->encode(doubleValue()); 138 break; 139 case NPVariantData::String: 140 encoder->encode(stringValue()); 141 break; 142 case NPVariantData::LocalNPObjectID: 143 encoder->encode(localNPObjectIDValue()); 144 break; 145 case NPVariantData::RemoteNPObjectID: 146 encoder->encode(remoteNPObjectIDValue()); 147 break; 148 } 149 } 150 151 bool NPVariantData::decode(CoreIPC::ArgumentDecoder* decoder, NPVariantData& result) 152 { 153 uint32_t type; 154 if (!decoder->decode(type)) 155 return false; 156 157 // We special-case LocalNPObjectID and RemoteNPObjectID here so a LocalNPObjectID is 158 // decoded as a RemoteNPObjectID and vice versa. 159 // This is done because the type is from the perspective of the other connection, and 160 // thus we have to adjust it to match our own perspective. 161 if (type == NPVariantData::LocalNPObjectID) 162 type = NPVariantData::RemoteNPObjectID; 163 else if (type == NPVariantData::RemoteNPObjectID) 164 type = NPVariantData::LocalNPObjectID; 165 166 result.m_type = type; 167 168 switch (result.m_type) { 169 case NPVariantData::Void: 170 case NPVariantData::Null: 171 return true; 172 case NPVariantData::Bool: 173 return decoder->decode(result.m_boolValue); 174 case NPVariantData::Int32: 175 return decoder->decode(result.m_int32Value); 176 case NPVariantData::Double: 177 return decoder->decode(result.m_doubleValue); 178 case NPVariantData::String: 179 return decoder->decode(result.m_stringValue); 180 case NPVariantData::LocalNPObjectID: 181 return decoder->decode(result.m_localNPObjectIDValue); 182 case NPVariantData::RemoteNPObjectID: 183 return decoder->decode(result.m_remoteNPObjectIDValue); 184 } 185 186 return false; 187 } 188 189 } // namespace WebKit 190 191 #endif // ENABLE(PLUGIN_PROCESS) 192
