// 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 "xfa/fxjse/cfxjse_arguments.h" #include "xfa/fxjse/class.h" #include "xfa/fxjse/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* lpClass = static_cast<FXJSE_CLASS*>( 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; CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate()); lpThisValue->ForceSetValue(info.This()); CFXJSE_Value* lpRetValue = CFXJSE_Value::Create(info.GetIsolate()); CFXJSE_ArgumentsImpl impl = {&info, lpRetValue}; lpClass->dynMethodCall(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName, reinterpret_cast<CFXJSE_Arguments&>(impl)); if (!lpRetValue->DirectGetValue().IsEmpty()) { info.GetReturnValue().Set(lpRetValue->DirectGetValue()); } delete lpRetValue; lpRetValue = nullptr; delete lpThisValue; lpThisValue = nullptr; } static void FXJSE_DynPropGetterAdapter(const FXJSE_CLASS* lpClass, FXJSE_HOBJECT hObject, const CFX_ByteStringC& szPropName, FXJSE_HVALUE hValue) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(hObject, szPropName, FALSE); if (nPropType == FXJSE_ClassPropType_Property) { if (lpClass->dynPropGetter) { lpClass->dynPropGetter(hObject, szPropName, hValue); } } else if (nPropType == FXJSE_ClassPropType_Method) { if (lpClass->dynMethodCall && hValue) { CFXJSE_Value* lpValue = reinterpret_cast<CFXJSE_Value*>(hValue); v8::Isolate* pIsolate = lpValue->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*>(lpClass)); hCallBackInfo->SetInternalField( 1, v8::String::NewFromUtf8( pIsolate, reinterpret_cast<const char*>(szPropName.raw_str()), v8::String::kNormalString, szPropName.GetLength())); lpValue->ForceSetValue(v8::Function::New( lpValue->GetIsolate(), FXJSE_DynPropGetterAdapter_MethodCallback, hCallBackInfo)); } } } static void FXJSE_DynPropSetterAdapter(const FXJSE_CLASS* lpClass, FXJSE_HOBJECT hObject, const CFX_ByteStringC& szPropName, FXJSE_HVALUE hValue) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(hObject, szPropName, FALSE); if (nPropType != FXJSE_ClassPropType_Method) { if (lpClass->dynPropSetter) { lpClass->dynPropSetter(hObject, szPropName, hValue); } } } static FX_BOOL FXJSE_DynPropQueryAdapter(const FXJSE_CLASS* lpClass, FXJSE_HOBJECT hObject, const CFX_ByteStringC& szPropName) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(hObject, szPropName, TRUE); return nPropType != FXJSE_ClassPropType_None; } static FX_BOOL FXJSE_DynPropDeleterAdapter(const FXJSE_CLASS* lpClass, FXJSE_HOBJECT hObject, const CFX_ByteStringC& szPropName) { ASSERT(lpClass); int32_t nPropType = lpClass->dynPropTypeGetter == nullptr ? FXJSE_ClassPropType_Property : lpClass->dynPropTypeGetter(hObject, szPropName, FALSE); if (nPropType != FXJSE_ClassPropType_Method) { if (lpClass->dynPropDeleter) { return lpClass->dynPropDeleter(hObject, 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* lpClass = static_cast<FXJSE_CLASS*>(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()); CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate()); lpThisValue->ForceSetValue(thisObject); if (FXJSE_DynPropQueryAdapter(lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName)) { info.GetReturnValue().Set(v8::DontDelete); } else { const int32_t iV8Absent = 64; info.GetReturnValue().Set(iV8Absent); } delete lpThisValue; lpThisValue = nullptr; } 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* lpClass = static_cast<FXJSE_CLASS*>(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()); CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate()); lpThisValue->ForceSetValue(thisObject); info.GetReturnValue().Set( FXJSE_DynPropDeleterAdapter( lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName) ? true : false); delete lpThisValue; lpThisValue = nullptr; } 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* lpClass = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value()); v8::String::Utf8Value szPropName(property); CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate()); lpThisValue->ForceSetValue(thisObject); CFXJSE_Value* lpNewValue = CFXJSE_Value::Create(info.GetIsolate()); FXJSE_DynPropGetterAdapter( lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName, reinterpret_cast<FXJSE_HVALUE>(lpNewValue)); info.GetReturnValue().Set(lpNewValue->DirectGetValue()); delete lpThisValue; lpThisValue = nullptr; } 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* lpClass = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value()); v8::String::Utf8Value szPropName(property); CFX_ByteStringC szFxPropName(*szPropName, szPropName.length()); CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate()); lpThisValue->ForceSetValue(thisObject); CFXJSE_Value* lpNewValue = CFXJSE_Value::Create(info.GetIsolate()); lpNewValue->ForceSetValue(value); FXJSE_DynPropSetterAdapter( lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName, reinterpret_cast<FXJSE_HVALUE>(lpNewValue)); info.GetReturnValue().Set(value); delete lpThisValue; lpThisValue = nullptr; } static void FXJSE_V8_GenericNamedPropertyEnumeratorCallback( const v8::PropertyCallbackInfo<v8::Array>& info) { const FXJSE_CLASS* lpClass = static_cast<FXJSE_CLASS*>(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* 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*>(lpClassDefinition)), v8::PropertyHandlerFlags::kNonMasking); hObjectTemplate->SetHandler(configuration); }