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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/class.h" | |
| 8 | |
| 9 #include "xfa/fxjse/cfxjse_arguments.h" | |
| 10 #include "xfa/fxjse/context.h" | |
| 11 #include "xfa/fxjse/scope_inline.h" | |
| 12 #include "xfa/fxjse/value.h" | |
| 13 | |
| 14 static void FXJSE_V8ConstructorCallback_Wrapper( | |
| 15 const v8::FunctionCallbackInfo<v8::Value>& info); | |
| 16 static void FXJSE_V8FunctionCallback_Wrapper( | |
| 17 const v8::FunctionCallbackInfo<v8::Value>& info); | |
| 18 static void FXJSE_V8GetterCallback_Wrapper( | |
| 19 v8::Local<v8::String> property, | |
| 20 const v8::PropertyCallbackInfo<v8::Value>& info); | |
| 21 static void FXJSE_V8SetterCallback_Wrapper( | |
| 22 v8::Local<v8::String> property, | |
| 23 v8::Local<v8::Value> value, | |
| 24 const v8::PropertyCallbackInfo<void>& info); | |
| 25 | |
| 26 static void FXJSE_V8FunctionCallback_Wrapper( | |
| 27 const v8::FunctionCallbackInfo<v8::Value>& info) { | |
| 28 const FXJSE_FUNCTION_DESCRIPTOR* lpFunctionInfo = | |
| 29 static_cast<FXJSE_FUNCTION_DESCRIPTOR*>( | |
| 30 info.Data().As<v8::External>()->Value()); | |
| 31 if (!lpFunctionInfo) { | |
| 32 return; | |
| 33 } | |
| 34 CFX_ByteStringC szFunctionName(lpFunctionInfo->name); | |
| 35 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 36 new CFXJSE_Value(info.GetIsolate())); | |
| 37 lpThisValue->ForceSetValue(info.This()); | |
| 38 std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate())); | |
| 39 CFXJSE_Arguments impl(&info, lpRetValue.get()); | |
| 40 lpFunctionInfo->callbackProc(lpThisValue.get(), szFunctionName, impl); | |
| 41 if (!lpRetValue->DirectGetValue().IsEmpty()) { | |
| 42 info.GetReturnValue().Set(lpRetValue->DirectGetValue()); | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 static void FXJSE_V8ClassGlobalConstructorCallback_Wrapper( | |
| 47 const v8::FunctionCallbackInfo<v8::Value>& info) { | |
| 48 const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition = | |
| 49 static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 50 info.Data().As<v8::External>()->Value()); | |
| 51 if (!lpClassDefinition) { | |
| 52 return; | |
| 53 } | |
| 54 CFX_ByteStringC szFunctionName(lpClassDefinition->name); | |
| 55 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 56 new CFXJSE_Value(info.GetIsolate())); | |
| 57 lpThisValue->ForceSetValue(info.This()); | |
| 58 std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate())); | |
| 59 CFXJSE_Arguments impl(&info, lpRetValue.get()); | |
| 60 lpClassDefinition->constructor(lpThisValue.get(), szFunctionName, impl); | |
| 61 if (!lpRetValue->DirectGetValue().IsEmpty()) { | |
| 62 info.GetReturnValue().Set(lpRetValue->DirectGetValue()); | |
| 63 } | |
| 64 } | |
| 65 | |
| 66 static void FXJSE_V8GetterCallback_Wrapper( | |
| 67 v8::Local<v8::String> property, | |
| 68 const v8::PropertyCallbackInfo<v8::Value>& info) { | |
| 69 const FXJSE_PROPERTY_DESCRIPTOR* lpPropertyInfo = | |
| 70 static_cast<FXJSE_PROPERTY_DESCRIPTOR*>( | |
| 71 info.Data().As<v8::External>()->Value()); | |
| 72 if (!lpPropertyInfo) { | |
| 73 return; | |
| 74 } | |
| 75 CFX_ByteStringC szPropertyName(lpPropertyInfo->name); | |
| 76 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 77 new CFXJSE_Value(info.GetIsolate())); | |
| 78 std::unique_ptr<CFXJSE_Value> lpPropValue( | |
| 79 new CFXJSE_Value(info.GetIsolate())); | |
| 80 lpThisValue->ForceSetValue(info.This()); | |
| 81 lpPropertyInfo->getProc(lpThisValue.get(), szPropertyName, lpPropValue.get()); | |
| 82 info.GetReturnValue().Set(lpPropValue->DirectGetValue()); | |
| 83 } | |
| 84 | |
| 85 static void FXJSE_V8SetterCallback_Wrapper( | |
| 86 v8::Local<v8::String> property, | |
| 87 v8::Local<v8::Value> value, | |
| 88 const v8::PropertyCallbackInfo<void>& info) { | |
| 89 const FXJSE_PROPERTY_DESCRIPTOR* lpPropertyInfo = | |
| 90 static_cast<FXJSE_PROPERTY_DESCRIPTOR*>( | |
| 91 info.Data().As<v8::External>()->Value()); | |
| 92 if (!lpPropertyInfo) { | |
| 93 return; | |
| 94 } | |
| 95 CFX_ByteStringC szPropertyName(lpPropertyInfo->name); | |
| 96 std::unique_ptr<CFXJSE_Value> lpThisValue( | |
| 97 new CFXJSE_Value(info.GetIsolate())); | |
| 98 std::unique_ptr<CFXJSE_Value> lpPropValue( | |
| 99 new CFXJSE_Value(info.GetIsolate())); | |
| 100 lpThisValue->ForceSetValue(info.This()); | |
| 101 lpPropValue->ForceSetValue(value); | |
| 102 lpPropertyInfo->setProc(lpThisValue.get(), szPropertyName, lpPropValue.get()); | |
| 103 } | |
| 104 | |
| 105 static void FXJSE_V8ConstructorCallback_Wrapper( | |
| 106 const v8::FunctionCallbackInfo<v8::Value>& info) { | |
| 107 const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition = | |
| 108 static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 109 info.Data().As<v8::External>()->Value()); | |
| 110 if (!lpClassDefinition) { | |
| 111 return; | |
| 112 } | |
| 113 ASSERT(info.This()->InternalFieldCount()); | |
| 114 info.This()->SetAlignedPointerInInternalField(0, NULL); | |
| 115 } | |
| 116 | |
| 117 v8::Isolate* CFXJSE_Arguments::GetRuntime() const { | |
| 118 return m_pRetValue->GetIsolate(); | |
| 119 } | |
| 120 | |
| 121 int32_t CFXJSE_Arguments::GetLength() const { | |
| 122 return m_pInfo->Length(); | |
| 123 } | |
| 124 | |
| 125 std::unique_ptr<CFXJSE_Value> CFXJSE_Arguments::GetValue(int32_t index) const { | |
| 126 std::unique_ptr<CFXJSE_Value> lpArgValue( | |
| 127 new CFXJSE_Value(v8::Isolate::GetCurrent())); | |
| 128 lpArgValue->ForceSetValue((*m_pInfo)[index]); | |
| 129 return lpArgValue; | |
| 130 } | |
| 131 | |
| 132 FX_BOOL CFXJSE_Arguments::GetBoolean(int32_t index) const { | |
| 133 return (*m_pInfo)[index]->BooleanValue(); | |
| 134 } | |
| 135 | |
| 136 int32_t CFXJSE_Arguments::GetInt32(int32_t index) const { | |
| 137 return static_cast<int32_t>((*m_pInfo)[index]->NumberValue()); | |
| 138 } | |
| 139 | |
| 140 FX_FLOAT CFXJSE_Arguments::GetFloat(int32_t index) const { | |
| 141 return static_cast<FX_FLOAT>((*m_pInfo)[index]->NumberValue()); | |
| 142 } | |
| 143 | |
| 144 CFX_ByteString CFXJSE_Arguments::GetUTF8String(int32_t index) const { | |
| 145 v8::Local<v8::String> hString = (*m_pInfo)[index]->ToString(); | |
| 146 v8::String::Utf8Value szStringVal(hString); | |
| 147 return CFX_ByteString(*szStringVal); | |
| 148 } | |
| 149 | |
| 150 CFXJSE_HostObject* CFXJSE_Arguments::GetObject(int32_t index, | |
| 151 CFXJSE_Class* pClass) const { | |
| 152 v8::Local<v8::Value> hValue = (*m_pInfo)[index]; | |
| 153 ASSERT(!hValue.IsEmpty()); | |
| 154 if (!hValue->IsObject()) | |
| 155 return nullptr; | |
| 156 return FXJSE_RetrieveObjectBinding(hValue.As<v8::Object>(), pClass); | |
| 157 } | |
| 158 | |
| 159 CFXJSE_Value* CFXJSE_Arguments::GetReturnValue() { | |
| 160 return m_pRetValue; | |
| 161 } | |
| 162 | |
| 163 static void FXJSE_Context_GlobalObjToString( | |
| 164 const v8::FunctionCallbackInfo<v8::Value>& info) { | |
| 165 const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 166 info.Data().As<v8::External>()->Value()); | |
| 167 if (!lpClass) { | |
| 168 return; | |
| 169 } | |
| 170 if (info.This() == info.Holder() && lpClass->name) { | |
| 171 CFX_ByteString szStringVal; | |
| 172 szStringVal.Format("[object %s]", lpClass->name); | |
| 173 info.GetReturnValue().Set(v8::String::NewFromUtf8( | |
| 174 info.GetIsolate(), szStringVal.c_str(), v8::String::kNormalString, | |
| 175 szStringVal.GetLength())); | |
| 176 } else { | |
| 177 v8::Local<v8::String> local_str = | |
| 178 info.This() | |
| 179 ->ObjectProtoToString(info.GetIsolate()->GetCurrentContext()) | |
| 180 .FromMaybe(v8::Local<v8::String>()); | |
| 181 info.GetReturnValue().Set(local_str); | |
| 182 } | |
| 183 } | |
| 184 | |
| 185 CFXJSE_Class* CFXJSE_Class::Create( | |
| 186 CFXJSE_Context* lpContext, | |
| 187 const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition, | |
| 188 FX_BOOL bIsJSGlobal) { | |
| 189 if (!lpContext || !lpClassDefinition) { | |
| 190 return NULL; | |
| 191 } | |
| 192 CFXJSE_Class* pClass = | |
| 193 GetClassFromContext(lpContext, lpClassDefinition->name); | |
| 194 if (pClass) { | |
| 195 return pClass; | |
| 196 } | |
| 197 v8::Isolate* pIsolate = lpContext->m_pIsolate; | |
| 198 pClass = new CFXJSE_Class(lpContext); | |
| 199 pClass->m_szClassName = lpClassDefinition->name; | |
| 200 pClass->m_lpClassDefinition = lpClassDefinition; | |
| 201 CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate); | |
| 202 v8::Local<v8::FunctionTemplate> hFunctionTemplate = v8::FunctionTemplate::New( | |
| 203 pIsolate, bIsJSGlobal ? 0 : FXJSE_V8ConstructorCallback_Wrapper, | |
| 204 v8::External::New( | |
| 205 pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClassDefinition))); | |
| 206 hFunctionTemplate->SetClassName( | |
| 207 v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name)); | |
| 208 hFunctionTemplate->InstanceTemplate()->SetInternalFieldCount(1); | |
| 209 v8::Local<v8::ObjectTemplate> hObjectTemplate = | |
| 210 hFunctionTemplate->InstanceTemplate(); | |
| 211 SetUpNamedPropHandler(pIsolate, hObjectTemplate, lpClassDefinition); | |
| 212 | |
| 213 if (lpClassDefinition->propNum) { | |
| 214 for (int32_t i = 0; i < lpClassDefinition->propNum; i++) { | |
| 215 hObjectTemplate->SetNativeDataProperty( | |
| 216 v8::String::NewFromUtf8(pIsolate, | |
| 217 lpClassDefinition->properties[i].name), | |
| 218 lpClassDefinition->properties[i].getProc | |
| 219 ? FXJSE_V8GetterCallback_Wrapper | |
| 220 : NULL, | |
| 221 lpClassDefinition->properties[i].setProc | |
| 222 ? FXJSE_V8SetterCallback_Wrapper | |
| 223 : NULL, | |
| 224 v8::External::New(pIsolate, const_cast<FXJSE_PROPERTY_DESCRIPTOR*>( | |
| 225 lpClassDefinition->properties + i)), | |
| 226 static_cast<v8::PropertyAttribute>(v8::DontDelete)); | |
| 227 } | |
| 228 } | |
| 229 if (lpClassDefinition->methNum) { | |
| 230 for (int32_t i = 0; i < lpClassDefinition->methNum; i++) { | |
| 231 hObjectTemplate->Set( | |
| 232 v8::String::NewFromUtf8(pIsolate, lpClassDefinition->methods[i].name), | |
| 233 v8::FunctionTemplate::New( | |
| 234 pIsolate, FXJSE_V8FunctionCallback_Wrapper, | |
| 235 v8::External::New(pIsolate, | |
| 236 const_cast<FXJSE_FUNCTION_DESCRIPTOR*>( | |
| 237 lpClassDefinition->methods + i))), | |
| 238 static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); | |
| 239 } | |
| 240 } | |
| 241 if (lpClassDefinition->constructor) { | |
| 242 if (bIsJSGlobal) { | |
| 243 hObjectTemplate->Set( | |
| 244 v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name), | |
| 245 v8::FunctionTemplate::New( | |
| 246 pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper, | |
| 247 v8::External::New(pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 248 lpClassDefinition))), | |
| 249 static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); | |
| 250 } else { | |
| 251 v8::Local<v8::Context> hLocalContext = | |
| 252 v8::Local<v8::Context>::New(pIsolate, lpContext->m_hContext); | |
| 253 FXJSE_GetGlobalObjectFromContext(hLocalContext) | |
| 254 ->Set(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name), | |
| 255 v8::Function::New( | |
| 256 pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper, | |
| 257 v8::External::New(pIsolate, | |
| 258 const_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 259 lpClassDefinition)))); | |
| 260 } | |
| 261 } | |
| 262 if (bIsJSGlobal) { | |
| 263 hObjectTemplate->Set( | |
| 264 v8::String::NewFromUtf8(pIsolate, "toString"), | |
| 265 v8::FunctionTemplate::New( | |
| 266 pIsolate, FXJSE_Context_GlobalObjToString, | |
| 267 v8::External::New(pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>( | |
| 268 lpClassDefinition)))); | |
| 269 } | |
| 270 pClass->m_hTemplate.Reset(lpContext->m_pIsolate, hFunctionTemplate); | |
| 271 lpContext->m_rgClasses.push_back(std::unique_ptr<CFXJSE_Class>(pClass)); | |
| 272 return pClass; | |
| 273 } | |
| 274 | |
| 275 CFXJSE_Class* CFXJSE_Class::GetClassFromContext(CFXJSE_Context* pContext, | |
| 276 const CFX_ByteStringC& szName) { | |
| 277 for (const auto& pClass : pContext->m_rgClasses) { | |
| 278 if (pClass->m_szClassName == szName) | |
| 279 return pClass.get(); | |
| 280 } | |
| 281 return nullptr; | |
| 282 } | |
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Chromium Code Reviews
Issue 2056663004:
Move xfa/fxjse/ to fxjse/ (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master