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| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #include "xfa/fxjse/cfxjse_arguments.h" | |
| 8 #include "xfa/fxjse/class.h" | |
| 9 #include "xfa/fxjse/value.h" | |
| 10 | |
| 11 static void FXJSE_DynPropGetterAdapter_MethodCallback( | |
| 12 const v8::FunctionCallbackInfo<v8::Value>& info) { | |
| 13 v8::Local<v8::Object> hCallBackInfo = info.Data().As<v8::Object>(); | |
| 14 FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 15 hCallBackInfo->GetAlignedPointerFromInternalField(0)); | |
| 16 v8::Local<v8::String> hPropName = | |
| 17 hCallBackInfo->GetInternalField(1).As<v8::String>(); | |
| 18 ASSERT(lpClass && !hPropName.IsEmpty()); | |
| 19 v8::String::Utf8Value szPropName(hPropName); | |
| 20 CFX_ByteStringC szFxPropName = *szPropName; | |
| 21 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 22 new CFXJSE_Value(info.GetIsolate())); | |
| 23 lpThisValue->ForceSetValue(info.This()); | |
| 24 std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate())); | |
| 25 CFXJSE_Arguments impl(&info, lpRetValue.get()); | |
| 26 lpClass->dynMethodCall(lpThisValue.get(), szFxPropName, impl); | |
| 27 if (!lpRetValue->DirectGetValue().IsEmpty()) { | |
| 28 info.GetReturnValue().Set(lpRetValue->DirectGetValue()); | |
| 29 } | |
| 30 } | |
| 31 | |
| 32 static void FXJSE_DynPropGetterAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass, | |
| 33 CFXJSE_Value* pObject, | |
| 34 const CFX_ByteStringC& szPropName, | |
| 35 CFXJSE_Value* pValue) { | |
| 36 ASSERT(lpClass); | |
| 37 int32_t nPropType = | |
| 38 lpClass->dynPropTypeGetter == nullptr | |
| 39 ? FXJSE_ClassPropType_Property | |
| 40 : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE); | |
| 41 if (nPropType == FXJSE_ClassPropType_Property) { | |
| 42 if (lpClass->dynPropGetter) { | |
| 43 lpClass->dynPropGetter(pObject, szPropName, pValue); | |
| 44 } | |
| 45 } else if (nPropType == FXJSE_ClassPropType_Method) { | |
| 46 if (lpClass->dynMethodCall && pValue) { | |
| 47 v8::Isolate* pIsolate = pValue->GetIsolate(); | |
| 48 v8::HandleScope hscope(pIsolate); | |
| 49 v8::Local<v8::ObjectTemplate> hCallBackInfoTemplate = | |
| 50 v8::ObjectTemplate::New(pIsolate); | |
| 51 hCallBackInfoTemplate->SetInternalFieldCount(2); | |
| 52 v8::Local<v8::Object> hCallBackInfo = | |
| 53 hCallBackInfoTemplate->NewInstance(); | |
| 54 hCallBackInfo->SetAlignedPointerInInternalField( | |
| 55 0, const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClass)); | |
| 56 hCallBackInfo->SetInternalField( | |
| 57 1, v8::String::NewFromUtf8( | |
| 58 pIsolate, reinterpret_cast<const char*>(szPropName.raw_str()), | |
| 59 v8::String::kNormalString, szPropName.GetLength())); | |
| 60 pValue->ForceSetValue(v8::Function::New( | |
| 61 pValue->GetIsolate(), FXJSE_DynPropGetterAdapter_MethodCallback, | |
| 62 hCallBackInfo)); | |
| 63 } | |
| 64 } | |
| 65 } | |
| 66 | |
| 67 static void FXJSE_DynPropSetterAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass, | |
| 68 CFXJSE_Value* pObject, | |
| 69 const CFX_ByteStringC& szPropName, | |
| 70 CFXJSE_Value* pValue) { | |
| 71 ASSERT(lpClass); | |
| 72 int32_t nPropType = | |
| 73 lpClass->dynPropTypeGetter == nullptr | |
| 74 ? FXJSE_ClassPropType_Property | |
| 75 : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE); | |
| 76 if (nPropType != FXJSE_ClassPropType_Method) { | |
| 77 if (lpClass->dynPropSetter) { | |
| 78 lpClass->dynPropSetter(pObject, szPropName, pValue); | |
| 79 } | |
| 80 } | |
| 81 } | |
| 82 | |
| 83 static FX_BOOL FXJSE_DynPropQueryAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass, | |
| 84 CFXJSE_Value* pObject, | |
| 85 const CFX_ByteStringC& szPropName) { | |
| 86 ASSERT(lpClass); | |
| 87 int32_t nPropType = | |
| 88 lpClass->dynPropTypeGetter == nullptr | |
| 89 ? FXJSE_ClassPropType_Property | |
| 90 : lpClass->dynPropTypeGetter(pObject, szPropName, TRUE); | |
| 91 return nPropType != FXJSE_ClassPropType_None; | |
| 92 } | |
| 93 | |
| 94 static FX_BOOL FXJSE_DynPropDeleterAdapter( | |
| 95 const FXJSE_CLASS_DESCRIPTOR* lpClass, | |
| 96 CFXJSE_Value* pObject, | |
| 97 const CFX_ByteStringC& szPropName) { | |
| 98 ASSERT(lpClass); | |
| 99 int32_t nPropType = | |
| 100 lpClass->dynPropTypeGetter == nullptr | |
| 101 ? FXJSE_ClassPropType_Property | |
| 102 : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE); | |
| 103 if (nPropType != FXJSE_ClassPropType_Method) { | |
| 104 if (lpClass->dynPropDeleter) { | |
| 105 return lpClass->dynPropDeleter(pObject, szPropName); | |
| 106 } else { | |
| 107 return nPropType == FXJSE_ClassPropType_Property ? FALSE : TRUE; | |
| 108 } | |
| 109 } | |
| 110 return FALSE; | |
| 111 } | |
| 112 | |
| 113 static void FXJSE_V8_GenericNamedPropertyQueryCallback( | |
| 114 v8::Local<v8::Name> property, | |
| 115 const v8::PropertyCallbackInfo<v8::Integer>& info) { | |
| 116 v8::Local<v8::Object> thisObject = info.This(); | |
| 117 const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 118 info.Data().As<v8::External>()->Value()); | |
| 119 v8::Isolate* pIsolate = info.GetIsolate(); | |
| 120 v8::HandleScope scope(pIsolate); | |
| 121 v8::String::Utf8Value szPropName(property); | |
| 122 CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); | |
| 123 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 124 new CFXJSE_Value(info.GetIsolate())); | |
| 125 lpThisValue->ForceSetValue(thisObject); | |
| 126 if (FXJSE_DynPropQueryAdapter(lpClass, lpThisValue.get(), szFxPropName)) { | |
| 127 info.GetReturnValue().Set(v8::DontDelete); | |
| 128 } else { | |
| 129 const int32_t iV8Absent = 64; | |
| 130 info.GetReturnValue().Set(iV8Absent); | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 static void FXJSE_V8_GenericNamedPropertyDeleterCallback( | |
| 135 v8::Local<v8::Name> property, | |
| 136 const v8::PropertyCallbackInfo<v8::Boolean>& info) { | |
| 137 v8::Local<v8::Object> thisObject = info.This(); | |
| 138 const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 139 info.Data().As<v8::External>()->Value()); | |
| 140 v8::Isolate* pIsolate = info.GetIsolate(); | |
| 141 v8::HandleScope scope(pIsolate); | |
| 142 v8::String::Utf8Value szPropName(property); | |
| 143 CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); | |
| 144 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 145 new CFXJSE_Value(info.GetIsolate())); | |
| 146 lpThisValue->ForceSetValue(thisObject); | |
| 147 info.GetReturnValue().Set( | |
| 148 !!FXJSE_DynPropDeleterAdapter(lpClass, lpThisValue.get(), szFxPropName)); | |
| 149 } | |
| 150 | |
| 151 static void FXJSE_V8_GenericNamedPropertyGetterCallback( | |
| 152 v8::Local<v8::Name> property, | |
| 153 const v8::PropertyCallbackInfo<v8::Value>& info) { | |
| 154 v8::Local<v8::Object> thisObject = info.This(); | |
| 155 const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 156 info.Data().As<v8::External>()->Value()); | |
| 157 v8::String::Utf8Value szPropName(property); | |
| 158 CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); | |
| 159 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 160 new CFXJSE_Value(info.GetIsolate())); | |
| 161 lpThisValue->ForceSetValue(thisObject); | |
| 162 std::unique_ptr<CFXJSE_Value> lpNewValue(new CFXJSE_Value(info.GetIsolate())); | |
| 163 FXJSE_DynPropGetterAdapter(lpClass, lpThisValue.get(), szFxPropName, | |
| 164 lpNewValue.get()); | |
| 165 info.GetReturnValue().Set(lpNewValue->DirectGetValue()); | |
| 166 } | |
| 167 | |
| 168 static void FXJSE_V8_GenericNamedPropertySetterCallback( | |
| 169 v8::Local<v8::Name> property, | |
| 170 v8::Local<v8::Value> value, | |
| 171 const v8::PropertyCallbackInfo<v8::Value>& info) { | |
| 172 v8::Local<v8::Object> thisObject = info.This(); | |
| 173 const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 174 info.Data().As<v8::External>()->Value()); | |
| 175 v8::String::Utf8Value szPropName(property); | |
| 176 CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); | |
| 177 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 178 new CFXJSE_Value(info.GetIsolate())); | |
| 179 lpThisValue->ForceSetValue(thisObject); | |
| 180 | |
| 181 CFXJSE_Value* lpNewValue = new CFXJSE_Value(info.GetIsolate()); | |
| 182 lpNewValue->ForceSetValue(value); | |
| 183 FXJSE_DynPropSetterAdapter(lpClass, lpThisValue.get(), szFxPropName, | |
| 184 lpNewValue); | |
| 185 info.GetReturnValue().Set(value); | |
| 186 } | |
| 187 | |
| 188 static void FXJSE_V8_GenericNamedPropertyEnumeratorCallback( | |
| 189 const v8::PropertyCallbackInfo<v8::Array>& info) { | |
| 190 const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 191 info.Data().As<v8::External>()->Value()); | |
| 192 v8::Isolate* pIsolate = info.GetIsolate(); | |
| 193 v8::Local<v8::Array> newArray = v8::Array::New(pIsolate, lpClass->propNum); | |
| 194 for (int i = 0; i < lpClass->propNum; i++) { | |
| 195 newArray->Set( | |
| 196 i, v8::String::NewFromUtf8(pIsolate, lpClass->properties[i].name)); | |
| 197 } | |
| 198 info.GetReturnValue().Set(newArray); | |
| 199 } | |
| 200 | |
| 201 void CFXJSE_Class::SetUpNamedPropHandler( | |
| 202 v8::Isolate* pIsolate, | |
| 203 v8::Local<v8::ObjectTemplate>& hObjectTemplate, | |
| 204 const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition) { | |
| 205 v8::NamedPropertyHandlerConfiguration configuration( | |
| 206 lpClassDefinition->dynPropGetter | |
| 207 ? FXJSE_V8_GenericNamedPropertyGetterCallback | |
| 208 : 0, | |
| 209 lpClassDefinition->dynPropSetter | |
| 210 ? FXJSE_V8_GenericNamedPropertySetterCallback | |
| 211 : 0, | |
| 212 lpClassDefinition->dynPropTypeGetter | |
| 213 ? FXJSE_V8_GenericNamedPropertyQueryCallback | |
| 214 : 0, | |
| 215 lpClassDefinition->dynPropDeleter | |
| 216 ? FXJSE_V8_GenericNamedPropertyDeleterCallback | |
| 217 : 0, | |
| 218 FXJSE_V8_GenericNamedPropertyEnumeratorCallback, | |
| 219 v8::External::New(pIsolate, | |
| 220 const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClassDefinition)), | |
| 221 v8::PropertyHandlerFlags::kNonMasking); | |
| 222 hObjectTemplate->SetHandler(configuration); | |
| 223 } | |
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