| // 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/class.h" |
| |
| #include "xfa/fxjse/cfxjse_arguments.h" |
| #include "xfa/fxjse/context.h" |
| #include "xfa/fxjse/scope_inline.h" |
| #include "xfa/fxjse/value.h" |
| |
| static void FXJSE_V8ConstructorCallback_Wrapper( |
| const v8::FunctionCallbackInfo<v8::Value>& info); |
| static void FXJSE_V8FunctionCallback_Wrapper( |
| const v8::FunctionCallbackInfo<v8::Value>& info); |
| static void FXJSE_V8GetterCallback_Wrapper( |
| v8::Local<v8::String> property, |
| const v8::PropertyCallbackInfo<v8::Value>& info); |
| static void FXJSE_V8SetterCallback_Wrapper( |
| v8::Local<v8::String> property, |
| v8::Local<v8::Value> value, |
| const v8::PropertyCallbackInfo<void>& info); |
| |
| CFXJSE_Class* FXJSE_DefineClass(CFXJSE_Context* pContext, |
| const FXJSE_CLASS_DESCRIPTOR* lpClass) { |
| ASSERT(pContext); |
| return CFXJSE_Class::Create(pContext, lpClass, FALSE); |
| } |
| |
| static void FXJSE_V8FunctionCallback_Wrapper( |
| const v8::FunctionCallbackInfo<v8::Value>& info) { |
| const FXJSE_FUNCTION_DESCRIPTOR* lpFunctionInfo = |
| static_cast<FXJSE_FUNCTION_DESCRIPTOR*>( |
| info.Data().As<v8::External>()->Value()); |
| if (!lpFunctionInfo) { |
| return; |
| } |
| CFX_ByteStringC szFunctionName(lpFunctionInfo->name); |
| 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()); |
| lpFunctionInfo->callbackProc(lpThisValue.get(), szFunctionName, impl); |
| if (!lpRetValue->DirectGetValue().IsEmpty()) { |
| info.GetReturnValue().Set(lpRetValue->DirectGetValue()); |
| } |
| } |
| |
| static void FXJSE_V8ClassGlobalConstructorCallback_Wrapper( |
| const v8::FunctionCallbackInfo<v8::Value>& info) { |
| const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition = |
| static_cast<FXJSE_CLASS_DESCRIPTOR*>( |
| info.Data().As<v8::External>()->Value()); |
| if (!lpClassDefinition) { |
| return; |
| } |
| CFX_ByteStringC szFunctionName(lpClassDefinition->name); |
| 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()); |
| lpClassDefinition->constructor(lpThisValue.get(), szFunctionName, impl); |
| if (!lpRetValue->DirectGetValue().IsEmpty()) { |
| info.GetReturnValue().Set(lpRetValue->DirectGetValue()); |
| } |
| } |
| |
| static void FXJSE_V8GetterCallback_Wrapper( |
| v8::Local<v8::String> property, |
| const v8::PropertyCallbackInfo<v8::Value>& info) { |
| const FXJSE_PROPERTY_DESCRIPTOR* lpPropertyInfo = |
| static_cast<FXJSE_PROPERTY_DESCRIPTOR*>( |
| info.Data().As<v8::External>()->Value()); |
| if (!lpPropertyInfo) { |
| return; |
| } |
| CFX_ByteStringC szPropertyName(lpPropertyInfo->name); |
| std::unique_ptr<CFXJSE_Value> lpThisValue( |
| new CFXJSE_Value(info.GetIsolate())); |
| std::unique_ptr<CFXJSE_Value> lpPropValue( |
| new CFXJSE_Value(info.GetIsolate())); |
| lpThisValue->ForceSetValue(info.This()); |
| lpPropertyInfo->getProc(lpThisValue.get(), szPropertyName, lpPropValue.get()); |
| info.GetReturnValue().Set(lpPropValue->DirectGetValue()); |
| } |
| |
| static void FXJSE_V8SetterCallback_Wrapper( |
| v8::Local<v8::String> property, |
| v8::Local<v8::Value> value, |
| const v8::PropertyCallbackInfo<void>& info) { |
| const FXJSE_PROPERTY_DESCRIPTOR* lpPropertyInfo = |
| static_cast<FXJSE_PROPERTY_DESCRIPTOR*>( |
| info.Data().As<v8::External>()->Value()); |
| if (!lpPropertyInfo) { |
| return; |
| } |
| CFX_ByteStringC szPropertyName(lpPropertyInfo->name); |
| std::unique_ptr<CFXJSE_Value> lpThisValue( |
| new CFXJSE_Value(info.GetIsolate())); |
| std::unique_ptr<CFXJSE_Value> lpPropValue( |
| new CFXJSE_Value(info.GetIsolate())); |
| lpThisValue->ForceSetValue(info.This()); |
| lpPropValue->ForceSetValue(value); |
| lpPropertyInfo->setProc(lpThisValue.get(), szPropertyName, lpPropValue.get()); |
| } |
| |
| static void FXJSE_V8ConstructorCallback_Wrapper( |
| const v8::FunctionCallbackInfo<v8::Value>& info) { |
| const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition = |
| static_cast<FXJSE_CLASS_DESCRIPTOR*>( |
| info.Data().As<v8::External>()->Value()); |
| if (!lpClassDefinition) { |
| return; |
| } |
| ASSERT(info.This()->InternalFieldCount()); |
| info.This()->SetAlignedPointerInInternalField(0, NULL); |
| } |
| |
| v8::Isolate* CFXJSE_Arguments::GetRuntime() const { |
| return m_pRetValue->GetIsolate(); |
| } |
| |
| int32_t CFXJSE_Arguments::GetLength() const { |
| return m_pInfo->Length(); |
| } |
| |
| std::unique_ptr<CFXJSE_Value> CFXJSE_Arguments::GetValue(int32_t index) const { |
| std::unique_ptr<CFXJSE_Value> lpArgValue( |
| new CFXJSE_Value(v8::Isolate::GetCurrent())); |
| lpArgValue->ForceSetValue((*m_pInfo)[index]); |
| return lpArgValue; |
| } |
| |
| FX_BOOL CFXJSE_Arguments::GetBoolean(int32_t index) const { |
| return (*m_pInfo)[index]->BooleanValue(); |
| } |
| |
| int32_t CFXJSE_Arguments::GetInt32(int32_t index) const { |
| return static_cast<int32_t>((*m_pInfo)[index]->NumberValue()); |
| } |
| |
| FX_FLOAT CFXJSE_Arguments::GetFloat(int32_t index) const { |
| return static_cast<FX_FLOAT>((*m_pInfo)[index]->NumberValue()); |
| } |
| |
| CFX_ByteString CFXJSE_Arguments::GetUTF8String(int32_t index) const { |
| v8::Local<v8::String> hString = (*m_pInfo)[index]->ToString(); |
| v8::String::Utf8Value szStringVal(hString); |
| return CFX_ByteString(*szStringVal); |
| } |
| |
| void* CFXJSE_Arguments::GetObject(int32_t index, CFXJSE_Class* pClass) const { |
| v8::Local<v8::Value> hValue = (*m_pInfo)[index]; |
| ASSERT(!hValue.IsEmpty()); |
| if (!hValue->IsObject()) |
| return nullptr; |
| return FXJSE_RetrieveObjectBinding(hValue.As<v8::Object>(), pClass); |
| } |
| |
| CFXJSE_Value* CFXJSE_Arguments::GetReturnValue() { |
| return m_pRetValue; |
| } |
| |
| static void FXJSE_Context_GlobalObjToString( |
| const v8::FunctionCallbackInfo<v8::Value>& info) { |
| const FXJSE_CLASS_DESCRIPTOR* lpClass = static_cast<FXJSE_CLASS_DESCRIPTOR*>( |
| info.Data().As<v8::External>()->Value()); |
| if (!lpClass) { |
| return; |
| } |
| if (info.This() == info.Holder() && lpClass->name) { |
| CFX_ByteString szStringVal; |
| szStringVal.Format("[object %s]", lpClass->name); |
| info.GetReturnValue().Set(v8::String::NewFromUtf8( |
| info.GetIsolate(), szStringVal.c_str(), v8::String::kNormalString, |
| szStringVal.GetLength())); |
| } else { |
| v8::Local<v8::String> local_str = |
| info.This() |
| ->ObjectProtoToString(info.GetIsolate()->GetCurrentContext()) |
| .FromMaybe(v8::Local<v8::String>()); |
| info.GetReturnValue().Set(local_str); |
| } |
| } |
| |
| CFXJSE_Class* CFXJSE_Class::Create( |
| CFXJSE_Context* lpContext, |
| const FXJSE_CLASS_DESCRIPTOR* lpClassDefinition, |
| FX_BOOL bIsJSGlobal) { |
| if (!lpContext || !lpClassDefinition) { |
| return NULL; |
| } |
| CFXJSE_Class* pClass = |
| GetClassFromContext(lpContext, lpClassDefinition->name); |
| if (pClass) { |
| return pClass; |
| } |
| v8::Isolate* pIsolate = lpContext->m_pIsolate; |
| pClass = new CFXJSE_Class(lpContext); |
| pClass->m_szClassName = lpClassDefinition->name; |
| pClass->m_lpClassDefinition = lpClassDefinition; |
| CFXJSE_ScopeUtil_IsolateHandleRootContext scope(pIsolate); |
| v8::Local<v8::FunctionTemplate> hFunctionTemplate = v8::FunctionTemplate::New( |
| pIsolate, bIsJSGlobal ? 0 : FXJSE_V8ConstructorCallback_Wrapper, |
| v8::External::New( |
| pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>(lpClassDefinition))); |
| hFunctionTemplate->SetClassName( |
| v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name)); |
| hFunctionTemplate->InstanceTemplate()->SetInternalFieldCount(1); |
| v8::Local<v8::ObjectTemplate> hObjectTemplate = |
| hFunctionTemplate->InstanceTemplate(); |
| SetUpNamedPropHandler(pIsolate, hObjectTemplate, lpClassDefinition); |
| |
| if (lpClassDefinition->propNum) { |
| for (int32_t i = 0; i < lpClassDefinition->propNum; i++) { |
| hObjectTemplate->SetNativeDataProperty( |
| v8::String::NewFromUtf8(pIsolate, |
| lpClassDefinition->properties[i].name), |
| lpClassDefinition->properties[i].getProc |
| ? FXJSE_V8GetterCallback_Wrapper |
| : NULL, |
| lpClassDefinition->properties[i].setProc |
| ? FXJSE_V8SetterCallback_Wrapper |
| : NULL, |
| v8::External::New(pIsolate, const_cast<FXJSE_PROPERTY_DESCRIPTOR*>( |
| lpClassDefinition->properties + i)), |
| static_cast<v8::PropertyAttribute>(v8::DontDelete)); |
| } |
| } |
| if (lpClassDefinition->methNum) { |
| for (int32_t i = 0; i < lpClassDefinition->methNum; i++) { |
| hObjectTemplate->Set( |
| v8::String::NewFromUtf8(pIsolate, lpClassDefinition->methods[i].name), |
| v8::FunctionTemplate::New( |
| pIsolate, FXJSE_V8FunctionCallback_Wrapper, |
| v8::External::New(pIsolate, |
| const_cast<FXJSE_FUNCTION_DESCRIPTOR*>( |
| lpClassDefinition->methods + i))), |
| static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| } |
| } |
| if (lpClassDefinition->constructor) { |
| if (bIsJSGlobal) { |
| hObjectTemplate->Set( |
| v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name), |
| v8::FunctionTemplate::New( |
| pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper, |
| v8::External::New(pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>( |
| lpClassDefinition))), |
| static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete)); |
| } else { |
| v8::Local<v8::Context> hLocalContext = |
| v8::Local<v8::Context>::New(pIsolate, lpContext->m_hContext); |
| FXJSE_GetGlobalObjectFromContext(hLocalContext) |
| ->Set(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name), |
| v8::Function::New( |
| pIsolate, FXJSE_V8ClassGlobalConstructorCallback_Wrapper, |
| v8::External::New(pIsolate, |
| const_cast<FXJSE_CLASS_DESCRIPTOR*>( |
| lpClassDefinition)))); |
| } |
| } |
| if (bIsJSGlobal) { |
| hObjectTemplate->Set( |
| v8::String::NewFromUtf8(pIsolate, "toString"), |
| v8::FunctionTemplate::New( |
| pIsolate, FXJSE_Context_GlobalObjToString, |
| v8::External::New(pIsolate, const_cast<FXJSE_CLASS_DESCRIPTOR*>( |
| lpClassDefinition)))); |
| } |
| pClass->m_hTemplate.Reset(lpContext->m_pIsolate, hFunctionTemplate); |
| lpContext->m_rgClasses.push_back(std::unique_ptr<CFXJSE_Class>(pClass)); |
| return pClass; |
| } |
| |
| CFXJSE_Class* CFXJSE_Class::GetClassFromContext(CFXJSE_Context* pContext, |
| const CFX_ByteStringC& szName) { |
| for (const auto& pClass : pContext->m_rgClasses) { |
| if (pClass->m_szClassName == szName) |
| return pClass.get(); |
| } |
| return nullptr; |
| } |