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// 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 "../../foxitlib.h"
#include "fxv8.h"
#include "context.h"
#include "class.h"
#include "value.h"
#include "scope_inline.h"
#include "util_inline.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);
void FXJSE_DefineFunctions(FXJSE_HCONTEXT hContext, const FXJSE_FUNCTION* lpFunctions, int nNum)
{
CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
ASSERT(lpContext);
CFXJSE_ScopeUtil_IsolateHandleContext scope(lpContext);
v8::Isolate *pIsolate = lpContext->GetRuntime();
v8::Local<v8::Object> hGlobalObject = FXJSE_GetGlobalObjectFromContext(scope.GetLocalContext());
for(int32_t i = 0; i < nNum; i++) {
hGlobalObject->ForceSet(v8::String::NewFromUtf8(pIsolate, lpFunctions[i].name),
v8::Function::New(pIsolate, FXJSE_V8FunctionCallback_Wrapper, v8::External::New(pIsolate, const_cast<FXJSE_FUNCTION*>(lpFunctions + i))),
static_cast<v8::PropertyAttribute>(v8::ReadOnly | v8::DontDelete));
}
}
FXJSE_HCLASS FXJSE_DefineClass(FXJSE_HCONTEXT hContext, const FXJSE_CLASS* lpClass)
{
CFXJSE_Context* lpContext = reinterpret_cast<CFXJSE_Context*>(hContext);
ASSERT(lpContext);
return reinterpret_cast<FXJSE_HCLASS>(CFXJSE_Class::Create(lpContext, lpClass, FALSE));
}
FXJSE_HCLASS FXJSE_GetClass(FXJSE_HCONTEXT hContext, FX_BSTR szName)
{
return reinterpret_cast<FXJSE_HCLASS>(CFXJSE_Class::GetClassFromContext(reinterpret_cast<CFXJSE_Context*>(hContext), szName));
}
static void FXJSE_V8FunctionCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info)
{
const FXJSE_FUNCTION* lpFunctionInfo = static_cast<FXJSE_FUNCTION*>(info.Data().As<v8::External>()->Value());
if (!lpFunctionInfo) {
return;
}
CFX_ByteStringC szFunctionName(lpFunctionInfo->name);
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};
lpFunctionInfo->callbackProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFunctionName, reinterpret_cast<CFXJSE_Arguments&>(impl));
if(!lpRetValue->DirectGetValue().IsEmpty()) {
info.GetReturnValue().Set(lpRetValue->DirectGetValue());
}
delete lpRetValue;
lpRetValue = NULL;
delete lpThisValue;
lpThisValue = NULL;
}
static void FXJSE_V8ClassGlobalConstructorCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info)
{
const FXJSE_CLASS* lpClassDefinition = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
if (!lpClassDefinition) {
return;
}
CFX_ByteStringC szFunctionName(lpClassDefinition->name);
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};
lpClassDefinition->constructor(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFunctionName, reinterpret_cast<CFXJSE_Arguments&>(impl));
if(!lpRetValue->DirectGetValue().IsEmpty()) {
info.GetReturnValue().Set(lpRetValue->DirectGetValue());
}
delete lpRetValue;
lpRetValue = NULL;
delete lpThisValue;
lpThisValue = NULL;
}
static void FXJSE_V8GetterCallback_Wrapper(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Value>& info)
{
const FXJSE_PROPERTY* lpPropertyInfo = static_cast<FXJSE_PROPERTY*>(info.Data().As<v8::External>()->Value());
if (!lpPropertyInfo) {
return;
}
CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
CFXJSE_Value* lpPropValue = CFXJSE_Value::Create(info.GetIsolate());
lpThisValue->ForceSetValue(info.This());
lpPropertyInfo->getProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szPropertyName, reinterpret_cast<FXJSE_HVALUE>(lpPropValue));
info.GetReturnValue().Set(lpPropValue->DirectGetValue());
delete lpThisValue;
lpThisValue = NULL;
delete lpPropValue;
lpPropValue = NULL;
}
static void FXJSE_V8SetterCallback_Wrapper(v8::Local<v8::String> property, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<void>& info)
{
const FXJSE_PROPERTY* lpPropertyInfo = static_cast<FXJSE_PROPERTY*>(info.Data().As<v8::External>()->Value());
if (!lpPropertyInfo) {
return;
}
CFX_ByteStringC szPropertyName(lpPropertyInfo->name);
CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
CFXJSE_Value* lpPropValue = CFXJSE_Value::Create(info.GetIsolate());
lpThisValue->ForceSetValue(info.This());
lpPropValue->ForceSetValue(value);
lpPropertyInfo->setProc(reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szPropertyName, reinterpret_cast<FXJSE_HVALUE>(lpPropValue));
delete lpThisValue;
lpThisValue = NULL;
delete lpPropValue;
lpPropValue = NULL;
}
static void FXJSE_V8ConstructorCallback_Wrapper(const v8::FunctionCallbackInfo<v8::Value>& info)
{
const FXJSE_CLASS* lpClassDefinition = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
if (!lpClassDefinition) {
return;
}
FXSYS_assert(info.This()->InternalFieldCount());
info.This()->SetAlignedPointerInInternalField(0, NULL);
CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
lpThisValue->ForceSetValue(info.This());
if(lpClassDefinition->dynMethodCall || lpClassDefinition->dynPropGetter || lpClassDefinition->dynPropSetter || lpClassDefinition->dynPropTypeGetter) {
CFXJSE_Class::SetUpDynPropHandler(NULL, lpThisValue, lpClassDefinition);
}
delete lpThisValue;
lpThisValue = NULL;
}
FXJSE_HRUNTIME CFXJSE_Arguments::GetRuntime() const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
return reinterpret_cast<FXJSE_HRUNTIME>(lpArguments->m_pRetValue->GetIsolate());
}
int32_t CFXJSE_Arguments::GetLength() const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
return lpArguments->m_pInfo->Length();
}
FXJSE_HVALUE CFXJSE_Arguments::GetValue(int32_t index) const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
CFXJSE_Value* lpArgValue = CFXJSE_Value::Create(v8::Isolate::GetCurrent());
ASSERT(lpArgValue);
lpArgValue->ForceSetValue((*lpArguments->m_pInfo)[index]);
return reinterpret_cast<FXJSE_HVALUE>(lpArgValue);
}
FX_BOOL CFXJSE_Arguments::GetBoolean(int32_t index) const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
return (*lpArguments->m_pInfo)[index]->BooleanValue() ? TRUE : FALSE;
}
int32_t CFXJSE_Arguments::GetInt32(int32_t index) const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
return static_cast<int32_t>((*lpArguments->m_pInfo)[index]->NumberValue());
}
FX_FLOAT CFXJSE_Arguments::GetFloat(int32_t index) const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
return static_cast<FX_FLOAT>((*lpArguments->m_pInfo)[index]->NumberValue());
}
CFX_ByteString CFXJSE_Arguments::GetUTF8String(int32_t index) const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
v8::Local<v8::String> hString = (*lpArguments->m_pInfo)[index]->ToString();
v8::String::Utf8Value szStringVal(hString);
return CFX_ByteString(*szStringVal);
}
FX_LPVOID CFXJSE_Arguments::GetObject(int32_t index, FXJSE_HCLASS hClass ) const
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
v8::Local<v8::Value> hValue = (*lpArguments->m_pInfo)[index];
ASSERT(!hValue.IsEmpty());
if(!hValue->IsObject()) {
return NULL;
}
CFXJSE_Class* lpClass = reinterpret_cast<CFXJSE_Class*>(hClass);
return FXJSE_RetrieveObjectBinding(hValue.As<v8::Object>(), lpClass);
}
FXJSE_HVALUE CFXJSE_Arguments::GetReturnValue()
{
const CFXJSE_ArgumentsImpl* lpArguments = reinterpret_cast<const CFXJSE_ArgumentsImpl* const>(this);
return reinterpret_cast<FXJSE_HVALUE>(lpArguments->m_pRetValue);
}
static void FXJSE_Context_GlobalObjToString(const v8::FunctionCallbackInfo<v8::Value>& info)
{
const FXJSE_CLASS* lpClass = static_cast<FXJSE_CLASS*>(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(), (FX_LPCSTR)szStringVal, v8::String::kNormalString, szStringVal.GetLength()));
} else {
info.GetReturnValue().Set(info.This()->ObjectProtoToString());
}
}
CFXJSE_Class* CFXJSE_Class::Create(CFXJSE_Context* lpContext, const FXJSE_CLASS* 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 = FX_NEW CFXJSE_Class(lpContext);
ASSERT(pClass);
pClass->m_szClassName = lpClassDefinition->name;
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*>(lpClassDefinition)));
hFunctionTemplate->SetClassName(v8::String::NewFromUtf8(pIsolate, lpClassDefinition->name));
hFunctionTemplate->InstanceTemplate()->SetInternalFieldCount(1);
v8::Local<v8::ObjectTemplate> hObjectTemplate = hFunctionTemplate->InstanceTemplate();
if (lpClassDefinition->dynPropDeleter || lpClassDefinition->dynPropTypeGetter) {
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*>(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*>(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*>(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*>(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*>(lpClassDefinition))));
}
pClass->m_hTemplate.Reset(lpContext->m_pIsolate, hFunctionTemplate);
lpContext->m_rgClasses.Add(pClass);
return pClass;
}
CFXJSE_Class* CFXJSE_Class::GetClassFromContext(CFXJSE_Context* pContext, FX_BSTR szName)
{
for(int count = pContext->m_rgClasses.GetSize(), i = 0; i < count; i++) {
CFXJSE_Class* pClass = pContext->m_rgClasses[i];
if(pClass->m_szClassName == szName) {
return pClass;
}
}
return NULL;
}
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