// Copyright 2014 PDFium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #include "fxjse/include/cfxjse_arguments.h" #include "fxjse/include/cfxjse_class.h" #include "fxjse/include/cfxjse_value.h" static void FXJSE_DynPropGetterAdapter_MethodCallback( const v8::FunctionCallbackInfo<v8::Value>& info) { v8::Local<v8::Object> hCallBackInfo = info.Data().As<v8::Object>(); FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( hCallBackInfo->GetAlignedPointerFromInternalField(0)); v8::Local<v8::String> hPropName = hCallBackInfo->GetInternalField(1).As<v8::String>(); ASSERT(lpClass && !hPropName.IsEmpty()); v8::String::Utf8Value szPropName(hPropName); CFX_ByteStringC szFxPropName = *szPropName; std::unique_ptr<CFXJSE_Value> lpThisValue( new CFXJSE_Value(info.GetIsolate())); lpThisValue->ForceSetValue(info.This()); std::unique_ptr<CFXJSE_Value> lpRetValue(new CFXJSE_Value(info.GetIsolate())); CFXJSE_Arguments impl(&info, lpRetValue.get()); lpClass->dynMethodCall(lpThisValue.get(), szFxPropName, impl); if (!lpRetValue->DirectGetValue().IsEmpty()) { info.GetReturnValue().Set(lpRetValue->DirectGetValue()); } } static void FXJSE_DynPropGetterAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass, CFXJSE_Value* pObject, const CFX_ByteStringC& szPropName, CFXJSE_Value* pValue) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE); if (nPropType == FXJSE_ClassPropType_Property) { if (lpClass->dynPropGetter) { lpClass->dynPropGetter(pObject, szPropName, pValue); } } else if (nPropType == FXJSE_ClassPropType_Method) { if (lpClass->dynMethodCall && pValue) { v8::Isolate* pIsolate = pValue->GetIsolate(); v8::HandleScope hscope(pIsolate); v8::Local<v8::ObjectTemplate> hCallBackInfoTemplate = v8::ObjectTemplate::New(pIsolate); hCallBackInfoTemplate->SetInternalFieldCount(2); v8::Local<v8::Object> hCallBackInfo = hCallBackInfoTemplate->NewInstance(); hCallBackInfo->SetAlignedPointerInInternalField( 0, const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClass)); hCallBackInfo->SetInternalField( 1, v8::String::NewFromUtf8( pIsolate, reinterpret_cast<const char*>(szPropName.raw_str()), v8::String::kNormalString, szPropName.GetLength())); pValue->ForceSetValue(v8::Function::New( pValue->GetIsolate(), FXJSE_DynPropGetterAdapter_MethodCallback, hCallBackInfo)); } } } static void FXJSE_DynPropSetterAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass, CFXJSE_Value* pObject, const CFX_ByteStringC& szPropName, CFXJSE_Value* pValue) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE); if (nPropType != FXJSE_ClassPropType_Method) { if (lpClass->dynPropSetter) { lpClass->dynPropSetter(pObject, szPropName, pValue); } } } static FX_BOOL FXJSE_DynPropQueryAdapter(const FXJSE_CLASS_DESCRIPTOR* lpClass, CFXJSE_Value* pObject, const CFX_ByteStringC& szPropName) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(pObject, szPropName, TRUE); return nPropType != FXJSE_ClassPropType_None; } static FX_BOOL FXJSE_DynPropDeleterAdapter( const FXJSE_CLASS_DESCRIPTOR* lpClass, CFXJSE_Value* pObject, const CFX_ByteStringC& szPropName) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(pObject, szPropName, FALSE); if (nPropType != FXJSE_ClassPropType_Method) { if (lpClass->dynPropDeleter) { return lpClass->dynPropDeleter(pObject, szPropName); } else { return nPropType == FXJSE_ClassPropType_Property ? FALSE : TRUE; } } return FALSE; } static void FXJSE_V8_GenericNamedPropertyQueryCallback( v8::Local<v8::Name> property, const v8::PropertyCallbackInfo<v8::Integer>& info) { v8::Local<v8::Object> thisObject = info.This(); const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( info.Data().As<v8::External>()->Value()); v8::Isolate* pIsolate = info.GetIsolate(); v8::HandleScope scope(pIsolate); v8::String::Utf8Value szPropName(property); CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); std::unique_ptr<CFXJSE_Value> lpThisValue( new CFXJSE_Value(info.GetIsolate())); lpThisValue->ForceSetValue(thisObject); if (FXJSE_DynPropQueryAdapter(lpClass, lpThisValue.get(), szFxPropName)) { info.GetReturnValue().Set(v8::DontDelete); } else { const int32_t iV8Absent = 64; info.GetReturnValue().Set(iV8Absent); } } static void FXJSE_V8_GenericNamedPropertyDeleterCallback( v8::Local<v8::Name> property, const v8::PropertyCallbackInfo<v8::Boolean>& info) { v8::Local<v8::Object> thisObject = info.This(); const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( info.Data().As<v8::External>()->Value()); v8::Isolate* pIsolate = info.GetIsolate(); v8::HandleScope scope(pIsolate); v8::String::Utf8Value szPropName(property); CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); std::unique_ptr<CFXJSE_Value> lpThisValue( new CFXJSE_Value(info.GetIsolate())); lpThisValue->ForceSetValue(thisObject); info.GetReturnValue().Set( !!FXJSE_DynPropDeleterAdapter(lpClass, lpThisValue.get(), szFxPropName)); } static void FXJSE_V8_GenericNamedPropertyGetterCallback( v8::Local<v8::Name> property, const v8::PropertyCallbackInfo<v8::Value>& info) { v8::Local<v8::Object> thisObject = info.This(); const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( info.Data().As<v8::External>()->Value()); v8::String::Utf8Value szPropName(property); CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); std::unique_ptr<CFXJSE_Value> lpThisValue( new CFXJSE_Value(info.GetIsolate())); lpThisValue->ForceSetValue(thisObject); std::unique_ptr<CFXJSE_Value> lpNewValue(new CFXJSE_Value(info.GetIsolate())); FXJSE_DynPropGetterAdapter(lpClass, lpThisValue.get(), szFxPropName, lpNewValue.get()); info.GetReturnValue().Set(lpNewValue->DirectGetValue()); } static void FXJSE_V8_GenericNamedPropertySetterCallback( v8::Local<v8::Name> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) { v8::Local<v8::Object> thisObject = info.This(); const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( info.Data().As<v8::External>()->Value()); v8::String::Utf8Value szPropName(property); CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); std::unique_ptr<CFXJSE_Value> lpThisValue( new CFXJSE_Value(info.GetIsolate())); lpThisValue->ForceSetValue(thisObject); CFXJSE_Value* lpNewValue = new CFXJSE_Value(info.GetIsolate()); lpNewValue->ForceSetValue(value); FXJSE_DynPropSetterAdapter(lpClass, lpThisValue.get(), szFxPropName, lpNewValue); info.GetReturnValue().Set(value); } static void FXJSE_V8_GenericNamedPropertyEnumeratorCallback( const v8::PropertyCallbackInfo<v8::Array>& info) { const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( info.Data().As<v8::External>()->Value()); v8::Isolate* pIsolate = info.GetIsolate(); v8::Local<v8::Array> newArray = v8::Array::New(pIsolate, lpClass->propNum); for (int i = 0; i < lpClass->propNum; i++) { newArray->Set( i, v8::String::NewFromUtf8(pIsolate, lpClass->properties[i].name)); } info.GetReturnValue().Set(newArray); } void CFXJSE_Class::SetUpNamedPropHandler( v8::Isolate* pIsolate, v8::Local<v8::ObjectTemplate>& hObjectTemplate, const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition) { v8::NamedPropertyHandlerConfiguration configuration( lpClassDefinition->dynPropGetter ? FXJSE_V8_GenericNamedPropertyGetterCallback : 0, lpClassDefinition->dynPropSetter ? FXJSE_V8_GenericNamedPropertySetterCallback : 0, lpClassDefinition->dynPropTypeGetter ? FXJSE_V8_GenericNamedPropertyQueryCallback : 0, lpClassDefinition->dynPropDeleter ? FXJSE_V8_GenericNamedPropertyDeleterCallback : 0, FXJSE_V8_GenericNamedPropertyEnumeratorCallback, v8::External::New(pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClassDefinition)), v8::PropertyHandlerFlags::kNonMasking); hObjectTemplate->SetHandler(configuration); }