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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 "class.h"
#include "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 = NULL;
delete lpThisValue;
lpThisValue = NULL;
}
static void FXJSE_DynPropGetterAdapter (const FXJSE_CLASS* lpClass, FXJSE_HOBJECT hObject, FX_BSTR szPropName, FXJSE_HVALUE hValue)
{
ASSERT(lpClass);
int32_t nPropType = lpClass->dynPropTypeGetter == NULL ? 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();
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.GetPtr()), 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, FX_BSTR szPropName, FXJSE_HVALUE hValue)
{
ASSERT(lpClass);
int32_t nPropType = lpClass->dynPropTypeGetter == NULL ? 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, FX_BSTR szPropName)
{
ASSERT(lpClass);
int32_t nPropType = lpClass->dynPropTypeGetter == NULL ? 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, FX_BSTR szPropName)
{
ASSERT(lpClass);
int32_t nPropType = lpClass->dynPropTypeGetter == NULL ? 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_V8ProxyCallback_getOwnPropertyDescriptor_getter(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());
CFXJSE_Value* lpNewValue = CFXJSE_Value::Create(info.GetIsolate());
lpThisValue->ForceSetValue(info.This());
FXJSE_DynPropGetterAdapter(lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName, reinterpret_cast<FXJSE_HVALUE>(lpNewValue));
info.GetReturnValue().Set(lpNewValue->DirectGetValue());
delete lpThisValue;
lpThisValue = NULL;
delete lpNewValue;
lpNewValue = NULL;
}
static void FXJSE_V8ProxyCallback_getOwnPropertyDescriptor_setter(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());
CFXJSE_Value* lpNewValue = CFXJSE_Value::Create(info.GetIsolate());
lpThisValue->ForceSetValue(info.This());
lpNewValue->ForceSetValue(info[0]);
FXJSE_DynPropSetterAdapter(lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName, reinterpret_cast<FXJSE_HVALUE>(lpNewValue));
delete lpThisValue;
lpThisValue = NULL;
delete lpNewValue;
lpNewValue = NULL;
}
static void FXJSE_V8ProxyCallback_getOwnPropertyDescriptor (const v8::FunctionCallbackInfo<v8::Value>& info)
{
const FXJSE_CLASS* lpClass = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
if (!lpClass) {
return;
}
v8::Isolate* pIsolate = info.GetIsolate();
v8::HandleScope scope(pIsolate);
v8::Local<v8::String> hPropName = info[0]->ToString();
v8::String::Utf8Value szPropName(hPropName);
CFX_ByteStringC szFxPropName(*szPropName, szPropName.length());
v8::Local<v8::ObjectTemplate> hCallBackInfoTemplate = v8::ObjectTemplate::New();
hCallBackInfoTemplate->SetInternalFieldCount(2);
v8::Local<v8::Object> hCallBackInfo = hCallBackInfoTemplate->NewInstance();
hCallBackInfo->SetAlignedPointerInInternalField(0, const_cast<FXJSE_CLASS*>(lpClass));
hCallBackInfo->SetInternalField(1, hPropName);
v8::Local<v8::Object> hPropDescriptor = v8::Object::New(pIsolate);
hPropDescriptor->ForceSet(v8::String::NewFromUtf8(pIsolate, "get"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_getOwnPropertyDescriptor_getter, hCallBackInfo));
hPropDescriptor->ForceSet(v8::String::NewFromUtf8(pIsolate, "set"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_getOwnPropertyDescriptor_setter, hCallBackInfo));
hPropDescriptor->ForceSet(v8::String::NewFromUtf8(pIsolate, "enumerable"), v8::Boolean::New(pIsolate, false));
hPropDescriptor->ForceSet(v8::String::NewFromUtf8(pIsolate, "configurable"), v8::Boolean::New(pIsolate, true));
info.GetReturnValue().Set(hPropDescriptor);
}
static void FXJSE_V8ProxyCallback_getPropertyDescriptor (const v8::FunctionCallbackInfo<v8::Value>& info)
{
v8::Isolate* pIsolate = info.GetIsolate();
v8::Local<v8::Object> hChainObj = info.This()->GetPrototype().As<v8::Object>();
v8::Local<v8::Script> fnSource = v8::Script::Compile(v8::String::NewFromUtf8(pIsolate,
"(function (o, name) { var fn, x, d; fn = Object.getOwnPropertyDescriptor; x = o; while(x && !(d = fn(x, name))){x = x.__proto__;} return d; })"));
v8::Local<v8::Function> fn = fnSource->Run().As<v8::Function>();
v8::Local<v8::Value> rgArgs[] = {hChainObj, info[0]};
v8::Local<v8::Value> hChainDescriptor = fn->Call(info.This(), 2, rgArgs);
if(!hChainDescriptor.IsEmpty() && hChainDescriptor->IsObject()) {
info.GetReturnValue().Set(hChainDescriptor);
} else {
FXJSE_V8ProxyCallback_getOwnPropertyDescriptor(info);
}
}
static void FXJSE_V8ProxyCallback_getOwnPropertyNames (const v8::FunctionCallbackInfo<v8::Value>& info)
{
v8::Isolate* pIsolate = info.GetIsolate();
v8::HandleScope scope(pIsolate);
info.GetReturnValue().Set(v8::Array::New(pIsolate));
}
static void FXJSE_V8ProxyCallback_getPropertyNames (const v8::FunctionCallbackInfo<v8::Value>& info)
{
v8::Local<v8::Object> hChainObj = info.This()->GetPrototype().As<v8::Object>();
v8::Local<v8::Value> hChainPropertyNames = hChainObj->GetPropertyNames();
info.GetReturnValue().Set(hChainPropertyNames);
}
static void FXJSE_V8ProxyCallback_defineProperty (const v8::FunctionCallbackInfo<v8::Value>& info)
{
const FXJSE_CLASS* lpClass = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
if (!lpClass) {
return;
}
v8::Isolate* pIsolate = info.GetIsolate();
v8::HandleScope scope(pIsolate);
v8::Local<v8::String> hPropName = info[0]->ToString();
v8::Local<v8::Object> hPropDescriptor = info[1]->ToObject();
v8::String::Utf8Value szPropName(hPropName);
if(!hPropDescriptor->Has(v8::String::NewFromUtf8(pIsolate, "value"))) {
return;
}
v8::Local<v8::Value> hPropValue = hPropDescriptor->Get(v8::String::NewFromUtf8(pIsolate, "value"));
CFX_ByteStringC szFxPropName(*szPropName, szPropName.length());
CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
CFXJSE_Value* lpPropValue = CFXJSE_Value::Create(info.GetIsolate());
lpThisValue->ForceSetValue(info.This());
lpPropValue->ForceSetValue(hPropValue);
FXJSE_DynPropSetterAdapter(lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName, reinterpret_cast<FXJSE_HVALUE>(lpPropValue));
delete lpThisValue;
lpThisValue = NULL;
delete lpPropValue;
lpPropValue = NULL;
}
static void FXJSE_V8ProxyCallback_delete (const v8::FunctionCallbackInfo<v8::Value>& info)
{
info.GetReturnValue().Set(true);
const FXJSE_CLASS* lpClass = static_cast<FXJSE_CLASS*>(info.Data().As<v8::External>()->Value());
if (!lpClass) {
return;
}
v8::Isolate* pIsolate = info.GetIsolate();
v8::HandleScope scope(pIsolate);
v8::Local<v8::String> hPropName = info[0]->ToString();
v8::String::Utf8Value szPropName(hPropName);
CFX_ByteStringC szFxPropName(*szPropName, szPropName.length());
CFXJSE_Value* lpThisValue = CFXJSE_Value::Create(info.GetIsolate());
lpThisValue->ForceSetValue(info.This());
info.GetReturnValue().Set(FXJSE_DynPropDeleterAdapter(lpClass, reinterpret_cast<FXJSE_HOBJECT>(lpThisValue), szFxPropName) ? true : false);
delete lpThisValue;
lpThisValue = NULL;
}
static void FXJSE_V8ProxyCallback_fix (const v8::FunctionCallbackInfo<v8::Value>& info)
{
info.GetReturnValue().SetUndefined();
}
static void FXJSE_V8_NamedPropertyQueryCallback(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Integer>& info)
{
v8::Local<v8::Object> thisObject = info.This();
if (thisObject->HasRealNamedProperty(property)) {
return;
}
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 = NULL;
}
static void FXJSE_V8_NamedPropertyDeleterCallback(v8::Local<v8::String> property, const v8::PropertyCallbackInfo<v8::Boolean>& info)
{
v8::Local<v8::Object> thisObject = info.This();
if (thisObject->HasRealNamedProperty(property)) {
return;
}
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 = NULL;
}
void CFXJSE_Class::SetUpDynPropHandler(CFXJSE_Context* pContext, CFXJSE_Value* pValue, const FXJSE_CLASS* lpClassDefinition)
{
v8::Isolate* pIsolate = pValue->GetIsolate();
CFXJSE_ScopeUtil_IsolateHandleRootOrNormalContext scope(pIsolate, pContext);
v8::Local<v8::Context> hContext = v8::Local<v8::Context>::New(pIsolate, pContext ? pContext->m_hContext : CFXJSE_RuntimeData::Get(pIsolate)->m_hRootContext);
v8::Local<v8::Object> hObject = v8::Local<v8::Value>::New(pIsolate, pValue->m_hValue).As<v8::Object>();
v8::Local<v8::Object> hHarmonyProxyObj = hContext->Global()->Get(v8::String::NewFromUtf8(pIsolate, "Proxy")).As<v8::Object>();
v8::Local<v8::Function> hHarmonyProxyCreateFn = hHarmonyProxyObj->Get(v8::String::NewFromUtf8(pIsolate, "create")).As<v8::Function>();
v8::Local<v8::Value> hOldPrototype = hObject->GetPrototype();
v8::Local<v8::Object> hTrapper = v8::Object::New(pIsolate);
hTrapper->ForceSet(v8::String::NewFromUtf8(pIsolate, "getOwnPropertyDescriptor"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_getOwnPropertyDescriptor, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
hTrapper->ForceSet(v8::String::NewFromUtf8(pIsolate, "getPropertyDescriptor"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_getPropertyDescriptor, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
hTrapper->ForceSet(v8::String::NewFromUtf8(pIsolate, "getOwnPropertyNames"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_getOwnPropertyNames, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
hTrapper->ForceSet(v8::String::NewFromUtf8(pIsolate, "getPropertyNames"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_getPropertyNames, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
hTrapper->ForceSet(v8::String::NewFromUtf8(pIsolate, "delete"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_delete, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
hTrapper->ForceSet(v8::String::NewFromUtf8(pIsolate, "defineProperty"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_defineProperty, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
hTrapper->ForceSet(v8::String::NewFromUtf8(pIsolate, "fix"), v8::Function::New(pIsolate, FXJSE_V8ProxyCallback_fix, v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition))));
v8::Local<v8::Value> rgArgs[] = {hTrapper, hOldPrototype};
v8::Local<v8::Value> hNewPrototype = hHarmonyProxyCreateFn->Call(hHarmonyProxyObj, 2, rgArgs);
hObject->SetPrototype(hNewPrototype);
}
void CFXJSE_Class::SetUpNamedPropHandler(v8::Isolate* pIsolate, v8::Local<v8::ObjectTemplate>& hObjectTemplate, const FXJSE_CLASS* lpClassDefinition)
{
hObjectTemplate->SetNamedPropertyHandler(0, 0,
lpClassDefinition->dynPropTypeGetter ? FXJSE_V8_NamedPropertyQueryCallback : 0,
lpClassDefinition->dynPropDeleter ? FXJSE_V8_NamedPropertyDeleterCallback : 0,
0,
v8::External::New(pIsolate, const_cast<FXJSE_CLASS*>(lpClassDefinition)));
}
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