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PL286/external/pdfium/fxjs/fxjs_v8.cpp

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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 "fxjs/fxjs_v8.h"
#include <vector>
#include "core/fxcrt/fx_basic.h"
// Keep this consistent with the values defined in gin/public/context_holder.h
// (without actually requiring a dependency on gin itself for the standalone
// embedders of PDFIum). The value we want to use is:
// kPerContextDataStartIndex + kEmbedderPDFium, which is 3.
static const unsigned int kPerContextDataIndex = 3u;
static unsigned int g_embedderDataSlot = 1u;
static v8::Isolate* g_isolate = nullptr;
static size_t g_isolate_ref_count = 0;
static FXJS_ArrayBufferAllocator* g_arrayBufferAllocator = nullptr;
static v8::Global<v8::ObjectTemplate>* g_DefaultGlobalObjectTemplate = nullptr;
static wchar_t kPerObjectDataTag[] = L"CFXJS_PerObjectData";
class CFXJS_PerObjectData {
public:
explicit CFXJS_PerObjectData(int nObjDefID)
: m_ObjDefID(nObjDefID), m_pPrivate(nullptr) {}
static void SetInObject(CFXJS_PerObjectData* pData,
v8::Local<v8::Object> pObj) {
if (pObj->InternalFieldCount() == 2) {
pObj->SetAlignedPointerInInternalField(0, pData);
pObj->SetAlignedPointerInInternalField(
1, static_cast<void*>(kPerObjectDataTag));
}
}
static CFXJS_PerObjectData* GetFromObject(v8::Local<v8::Object> pObj) {
if (pObj.IsEmpty() || pObj->InternalFieldCount() != 2 ||
pObj->GetAlignedPointerFromInternalField(1) !=
static_cast<void*>(kPerObjectDataTag)) {
return nullptr;
}
return static_cast<CFXJS_PerObjectData*>(
pObj->GetAlignedPointerFromInternalField(0));
}
const int m_ObjDefID;
void* m_pPrivate;
};
class CFXJS_ObjDefinition {
public:
static int MaxID(v8::Isolate* pIsolate) {
return FXJS_PerIsolateData::Get(pIsolate)->m_ObjectDefnArray.size();
}
static CFXJS_ObjDefinition* ForID(v8::Isolate* pIsolate, int id) {
// Note: GetAt() halts if out-of-range even in release builds.
return FXJS_PerIsolateData::Get(pIsolate)->m_ObjectDefnArray[id].get();
}
CFXJS_ObjDefinition(v8::Isolate* isolate,
const char* sObjName,
FXJSOBJTYPE eObjType,
CFXJS_Engine::Constructor pConstructor,
CFXJS_Engine::Destructor pDestructor)
: m_ObjName(sObjName),
m_ObjType(eObjType),
m_pConstructor(pConstructor),
m_pDestructor(pDestructor),
m_pIsolate(isolate) {
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
v8::Local<v8::FunctionTemplate> fun = v8::FunctionTemplate::New(isolate);
fun->InstanceTemplate()->SetInternalFieldCount(2);
fun->SetCallHandler([](const v8::FunctionCallbackInfo<v8::Value>& info) {
v8::Local<v8::Object> holder = info.Holder();
ASSERT(holder->InternalFieldCount() == 2);
holder->SetAlignedPointerInInternalField(0, nullptr);
holder->SetAlignedPointerInInternalField(1, nullptr);
});
if (eObjType == FXJSOBJTYPE_GLOBAL) {
fun->InstanceTemplate()->Set(
v8::Symbol::GetToStringTag(isolate),
v8::String::NewFromUtf8(isolate, "global", v8::NewStringType::kNormal)
.ToLocalChecked());
}
m_FunctionTemplate.Reset(isolate, fun);
v8::Local<v8::Signature> sig = v8::Signature::New(isolate, fun);
m_Signature.Reset(isolate, sig);
}
int AssignID() {
FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(m_pIsolate);
pData->m_ObjectDefnArray.emplace_back(this);
return pData->m_ObjectDefnArray.size() - 1;
}
v8::Local<v8::ObjectTemplate> GetInstanceTemplate() {
v8::EscapableHandleScope scope(m_pIsolate);
v8::Local<v8::FunctionTemplate> function =
m_FunctionTemplate.Get(m_pIsolate);
return scope.Escape(function->InstanceTemplate());
}
v8::Local<v8::Signature> GetSignature() {
v8::EscapableHandleScope scope(m_pIsolate);
return scope.Escape(m_Signature.Get(m_pIsolate));
}
const char* const m_ObjName;
const FXJSOBJTYPE m_ObjType;
const CFXJS_Engine::Constructor m_pConstructor;
const CFXJS_Engine::Destructor m_pDestructor;
v8::Isolate* m_pIsolate;
v8::Global<v8::FunctionTemplate> m_FunctionTemplate;
v8::Global<v8::Signature> m_Signature;
};
static v8::Local<v8::ObjectTemplate> GetGlobalObjectTemplate(
v8::Isolate* pIsolate) {
int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
for (int i = 0; i < maxID; ++i) {
CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, i);
if (pObjDef->m_ObjType == FXJSOBJTYPE_GLOBAL)
return pObjDef->GetInstanceTemplate();
}
if (!g_DefaultGlobalObjectTemplate) {
v8::Local<v8::ObjectTemplate> hGlobalTemplate =
v8::ObjectTemplate::New(pIsolate);
hGlobalTemplate->Set(
v8::Symbol::GetToStringTag(pIsolate),
v8::String::NewFromUtf8(pIsolate, "global", v8::NewStringType::kNormal)
.ToLocalChecked());
g_DefaultGlobalObjectTemplate =
new v8::Global<v8::ObjectTemplate>(pIsolate, hGlobalTemplate);
}
return g_DefaultGlobalObjectTemplate->Get(pIsolate);
}
void* FXJS_ArrayBufferAllocator::Allocate(size_t length) {
return calloc(1, length);
}
void* FXJS_ArrayBufferAllocator::AllocateUninitialized(size_t length) {
return malloc(length);
}
void FXJS_ArrayBufferAllocator::Free(void* data, size_t length) {
free(data);
}
void V8TemplateMapTraits::Dispose(v8::Isolate* isolate,
v8::Global<v8::Object> value,
void* key) {
v8::Local<v8::Object> obj = value.Get(isolate);
if (obj.IsEmpty())
return;
CFXJS_Engine* pEngine = CFXJS_Engine::CurrentEngineFromIsolate(isolate);
int id = pEngine->GetObjDefnID(obj);
if (id == -1)
return;
CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(isolate, id);
if (!pObjDef)
return;
if (pObjDef->m_pDestructor)
pObjDef->m_pDestructor(pEngine, obj);
CFXJS_Engine::FreeObjectPrivate(obj);
}
V8TemplateMapTraits::MapType* V8TemplateMapTraits::MapFromWeakCallbackInfo(
const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
V8TemplateMap* pMap =
(FXJS_PerIsolateData::Get(data.GetIsolate()))->m_pDynamicObjsMap.get();
return pMap ? &pMap->m_map : nullptr;
}
void FXJS_Initialize(unsigned int embedderDataSlot, v8::Isolate* pIsolate) {
if (g_isolate) {
ASSERT(g_embedderDataSlot == embedderDataSlot);
ASSERT(g_isolate == pIsolate);
return;
}
g_embedderDataSlot = embedderDataSlot;
g_isolate = pIsolate;
}
void FXJS_Release() {
ASSERT(!g_isolate || g_isolate_ref_count == 0);
delete g_DefaultGlobalObjectTemplate;
g_DefaultGlobalObjectTemplate = nullptr;
g_isolate = nullptr;
delete g_arrayBufferAllocator;
g_arrayBufferAllocator = nullptr;
}
bool FXJS_GetIsolate(v8::Isolate** pResultIsolate) {
if (g_isolate) {
*pResultIsolate = g_isolate;
return false;
}
// Provide backwards compatibility when no external isolate.
if (!g_arrayBufferAllocator)
g_arrayBufferAllocator = new FXJS_ArrayBufferAllocator();
v8::Isolate::CreateParams params;
params.array_buffer_allocator = g_arrayBufferAllocator;
*pResultIsolate = v8::Isolate::New(params);
return true;
}
size_t FXJS_GlobalIsolateRefCount() {
return g_isolate_ref_count;
}
V8TemplateMap::V8TemplateMap(v8::Isolate* isolate) : m_map(isolate) {}
V8TemplateMap::~V8TemplateMap() {}
void V8TemplateMap::set(void* key, v8::Local<v8::Object> handle) {
ASSERT(!m_map.Contains(key));
m_map.Set(key, handle);
}
FXJS_PerIsolateData::~FXJS_PerIsolateData() {}
// static
void FXJS_PerIsolateData::SetUp(v8::Isolate* pIsolate) {
if (!pIsolate->GetData(g_embedderDataSlot))
pIsolate->SetData(g_embedderDataSlot, new FXJS_PerIsolateData(pIsolate));
}
// static
FXJS_PerIsolateData* FXJS_PerIsolateData::Get(v8::Isolate* pIsolate) {
return static_cast<FXJS_PerIsolateData*>(
pIsolate->GetData(g_embedderDataSlot));
}
FXJS_PerIsolateData::FXJS_PerIsolateData(v8::Isolate* pIsolate)
: m_pDynamicObjsMap(new V8TemplateMap(pIsolate)) {}
CFXJS_Engine::CFXJS_Engine() : m_isolate(nullptr) {}
CFXJS_Engine::CFXJS_Engine(v8::Isolate* pIsolate) : m_isolate(pIsolate) {}
CFXJS_Engine::~CFXJS_Engine() {
m_V8PersistentContext.Reset();
}
// static
CFXJS_Engine* CFXJS_Engine::CurrentEngineFromIsolate(v8::Isolate* pIsolate) {
return static_cast<CFXJS_Engine*>(
pIsolate->GetCurrentContext()->GetAlignedPointerFromEmbedderData(
kPerContextDataIndex));
}
// static
int CFXJS_Engine::GetObjDefnID(v8::Local<v8::Object> pObj) {
CFXJS_PerObjectData* pData = CFXJS_PerObjectData::GetFromObject(pObj);
return pData ? pData->m_ObjDefID : -1;
}
// static
void CFXJS_Engine::FreeObjectPrivate(void* pPerObjectData) {
delete static_cast<CFXJS_PerObjectData*>(pPerObjectData);
}
// static
void CFXJS_Engine::FreeObjectPrivate(v8::Local<v8::Object> pObj) {
CFXJS_PerObjectData* pData = CFXJS_PerObjectData::GetFromObject(pObj);
pObj->SetAlignedPointerInInternalField(0, nullptr);
pObj->SetAlignedPointerInInternalField(1, nullptr);
delete pData;
}
int CFXJS_Engine::DefineObj(const char* sObjName,
FXJSOBJTYPE eObjType,
CFXJS_Engine::Constructor pConstructor,
CFXJS_Engine::Destructor pDestructor) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
FXJS_PerIsolateData::SetUp(m_isolate);
CFXJS_ObjDefinition* pObjDef = new CFXJS_ObjDefinition(
m_isolate, sObjName, eObjType, pConstructor, pDestructor);
return pObjDef->AssignID();
}
void CFXJS_Engine::DefineObjMethod(int nObjDefnID,
const char* sMethodName,
v8::FunctionCallback pMethodCall) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
CFXJS_ObjDefinition* pObjDef =
CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
v8::Local<v8::FunctionTemplate> fun = v8::FunctionTemplate::New(
m_isolate, pMethodCall, v8::Local<v8::Value>(), pObjDef->GetSignature());
fun->RemovePrototype();
pObjDef->GetInstanceTemplate()->Set(
v8::String::NewFromUtf8(m_isolate, sMethodName,
v8::NewStringType::kNormal)
.ToLocalChecked(),
fun, v8::ReadOnly);
}
void CFXJS_Engine::DefineObjProperty(int nObjDefnID,
const char* sPropName,
v8::AccessorGetterCallback pPropGet,
v8::AccessorSetterCallback pPropPut) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
CFXJS_ObjDefinition* pObjDef =
CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
pObjDef->GetInstanceTemplate()->SetAccessor(
v8::String::NewFromUtf8(m_isolate, sPropName, v8::NewStringType::kNormal)
.ToLocalChecked(),
pPropGet, pPropPut);
}
void CFXJS_Engine::DefineObjAllProperties(
int nObjDefnID,
v8::NamedPropertyQueryCallback pPropQurey,
v8::NamedPropertyGetterCallback pPropGet,
v8::NamedPropertySetterCallback pPropPut,
v8::NamedPropertyDeleterCallback pPropDel) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
CFXJS_ObjDefinition* pObjDef =
CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
pObjDef->GetInstanceTemplate()->SetNamedPropertyHandler(pPropGet, pPropPut,
pPropQurey, pPropDel);
}
void CFXJS_Engine::DefineObjConst(int nObjDefnID,
const char* sConstName,
v8::Local<v8::Value> pDefault) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
CFXJS_ObjDefinition* pObjDef =
CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
pObjDef->GetInstanceTemplate()->Set(m_isolate, sConstName, pDefault);
}
void CFXJS_Engine::DefineGlobalMethod(const char* sMethodName,
v8::FunctionCallback pMethodCall) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
v8::Local<v8::FunctionTemplate> fun =
v8::FunctionTemplate::New(m_isolate, pMethodCall);
fun->RemovePrototype();
GetGlobalObjectTemplate(m_isolate)->Set(
v8::String::NewFromUtf8(m_isolate, sMethodName,
v8::NewStringType::kNormal)
.ToLocalChecked(),
fun, v8::ReadOnly);
}
void CFXJS_Engine::DefineGlobalConst(const wchar_t* sConstName,
v8::FunctionCallback pConstGetter) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
CFX_ByteString bsConst = FX_UTF8Encode(CFX_WideStringC(sConstName));
v8::Local<v8::FunctionTemplate> fun =
v8::FunctionTemplate::New(m_isolate, pConstGetter);
fun->RemovePrototype();
GetGlobalObjectTemplate(m_isolate)->SetAccessorProperty(
v8::String::NewFromUtf8(m_isolate, bsConst.c_str(),
v8::NewStringType::kNormal)
.ToLocalChecked(),
fun);
}
void CFXJS_Engine::InitializeEngine() {
if (m_isolate == g_isolate)
++g_isolate_ref_count;
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
// This has to happen before we call GetGlobalObjectTemplate because that
// method gets the PerIsolateData from m_isolate.
FXJS_PerIsolateData::SetUp(m_isolate);
v8::Local<v8::Context> v8Context =
v8::Context::New(m_isolate, nullptr, GetGlobalObjectTemplate(m_isolate));
v8::Context::Scope context_scope(v8Context);
v8Context->SetAlignedPointerInEmbedderData(kPerContextDataIndex, this);
int maxID = CFXJS_ObjDefinition::MaxID(m_isolate);
m_StaticObjects.resize(maxID + 1);
for (int i = 0; i < maxID; ++i) {
CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(m_isolate, i);
if (pObjDef->m_ObjType == FXJSOBJTYPE_GLOBAL) {
CFXJS_PerObjectData::SetInObject(new CFXJS_PerObjectData(i),
v8Context->Global()
->GetPrototype()
->ToObject(v8Context)
.ToLocalChecked());
if (pObjDef->m_pConstructor) {
pObjDef->m_pConstructor(this, v8Context->Global()
->GetPrototype()
->ToObject(v8Context)
.ToLocalChecked());
}
} else if (pObjDef->m_ObjType == FXJSOBJTYPE_STATIC) {
v8::Local<v8::String> pObjName =
v8::String::NewFromUtf8(m_isolate, pObjDef->m_ObjName,
v8::NewStringType::kNormal,
strlen(pObjDef->m_ObjName))
.ToLocalChecked();
v8::Local<v8::Object> obj = NewFxDynamicObj(i, true);
v8Context->Global()->Set(v8Context, pObjName, obj).FromJust();
m_StaticObjects[i] = new v8::Global<v8::Object>(m_isolate, obj);
}
}
m_V8PersistentContext.Reset(m_isolate, v8Context);
}
void CFXJS_Engine::ReleaseEngine() {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::HandleScope handle_scope(m_isolate);
v8::Local<v8::Context> context =
v8::Local<v8::Context>::New(m_isolate, m_V8PersistentContext);
v8::Context::Scope context_scope(context);
FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(m_isolate);
if (!pData)
return;
m_ConstArrays.clear();
int maxID = CFXJS_ObjDefinition::MaxID(m_isolate);
for (int i = 0; i < maxID; ++i) {
CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(m_isolate, i);
v8::Local<v8::Object> pObj;
if (pObjDef->m_ObjType == FXJSOBJTYPE_GLOBAL) {
pObj =
context->Global()->GetPrototype()->ToObject(context).ToLocalChecked();
} else if (m_StaticObjects[i] && !m_StaticObjects[i]->IsEmpty()) {
pObj = v8::Local<v8::Object>::New(m_isolate, *m_StaticObjects[i]);
delete m_StaticObjects[i];
m_StaticObjects[i] = nullptr;
}
if (!pObj.IsEmpty()) {
if (pObjDef->m_pDestructor)
pObjDef->m_pDestructor(this, pObj);
FreeObjectPrivate(pObj);
}
}
m_V8PersistentContext.Reset();
if (m_isolate == g_isolate && --g_isolate_ref_count > 0)
return;
delete pData;
m_isolate->SetData(g_embedderDataSlot, nullptr);
}
int CFXJS_Engine::Execute(const CFX_WideString& script, FXJSErr* pError) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::TryCatch try_catch(m_isolate);
CFX_ByteString bsScript = script.UTF8Encode();
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
v8::Local<v8::Script> compiled_script;
if (!v8::Script::Compile(context,
v8::String::NewFromUtf8(m_isolate, bsScript.c_str(),
v8::NewStringType::kNormal,
bsScript.GetLength())
.ToLocalChecked())
.ToLocal(&compiled_script)) {
v8::String::Utf8Value error(try_catch.Exception());
// TODO(tsepez): return error via pError->message.
return -1;
}
v8::Local<v8::Value> result;
if (!compiled_script->Run(context).ToLocal(&result)) {
v8::String::Utf8Value error(try_catch.Exception());
// TODO(tsepez): return error via pError->message.
return -1;
}
return 0;
}
v8::Local<v8::Object> CFXJS_Engine::NewFxDynamicObj(int nObjDefnID,
bool bStatic) {
v8::Isolate::Scope isolate_scope(m_isolate);
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
if (nObjDefnID == -1) {
v8::Local<v8::ObjectTemplate> objTempl = v8::ObjectTemplate::New(m_isolate);
v8::Local<v8::Object> obj;
if (!objTempl->NewInstance(context).ToLocal(&obj))
return v8::Local<v8::Object>();
return obj;
}
FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(m_isolate);
if (!pData)
return v8::Local<v8::Object>();
if (nObjDefnID < 0 || nObjDefnID >= CFXJS_ObjDefinition::MaxID(m_isolate))
return v8::Local<v8::Object>();
CFXJS_ObjDefinition* pObjDef =
CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
v8::Local<v8::Object> obj;
if (!pObjDef->GetInstanceTemplate()->NewInstance(context).ToLocal(&obj))
return v8::Local<v8::Object>();
CFXJS_PerObjectData* pObjData = new CFXJS_PerObjectData(nObjDefnID);
CFXJS_PerObjectData::SetInObject(pObjData, obj);
if (pObjDef->m_pConstructor)
pObjDef->m_pConstructor(this, obj);
if (!bStatic && FXJS_PerIsolateData::Get(m_isolate)->m_pDynamicObjsMap)
FXJS_PerIsolateData::Get(m_isolate)->m_pDynamicObjsMap->set(pObjData, obj);
return obj;
}
v8::Local<v8::Object> CFXJS_Engine::GetThisObj() {
v8::Isolate::Scope isolate_scope(m_isolate);
if (!FXJS_PerIsolateData::Get(m_isolate))
return v8::Local<v8::Object>();
// Return the global object.
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
return context->Global()->GetPrototype()->ToObject(context).ToLocalChecked();
}
void CFXJS_Engine::Error(const CFX_WideString& message) {
// Conversion from pdfium's wchar_t wide-strings to v8's uint16_t
// wide-strings isn't handled by v8, so use UTF8 as a common
// intermediate format.
CFX_ByteString utf8_message = message.UTF8Encode();
m_isolate->ThrowException(v8::String::NewFromUtf8(m_isolate,
utf8_message.c_str(),
v8::NewStringType::kNormal)
.ToLocalChecked());
}
void CFXJS_Engine::SetObjectPrivate(v8::Local<v8::Object> pObj, void* p) {
CFXJS_PerObjectData* pPerObjectData =
CFXJS_PerObjectData::GetFromObject(pObj);
if (!pPerObjectData)
return;
pPerObjectData->m_pPrivate = p;
}
void* CFXJS_Engine::GetObjectPrivate(v8::Local<v8::Object> pObj) {
CFXJS_PerObjectData* pData = CFXJS_PerObjectData::GetFromObject(pObj);
if (!pData && !pObj.IsEmpty()) {
// It could be a global proxy object.
v8::Local<v8::Value> v = pObj->GetPrototype();
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
if (v->IsObject()) {
pData = CFXJS_PerObjectData::GetFromObject(
v->ToObject(context).ToLocalChecked());
}
}
return pData ? pData->m_pPrivate : nullptr;
}
v8::Local<v8::Value> CFXJS_Engine::GetObjectProperty(
v8::Local<v8::Object> pObj,
const CFX_WideString& wsPropertyName) {
if (pObj.IsEmpty())
return v8::Local<v8::Value>();
v8::Local<v8::Value> val;
if (!pObj->Get(m_isolate->GetCurrentContext(),
NewString(wsPropertyName.AsStringC()))
.ToLocal(&val))
return v8::Local<v8::Value>();
return val;
}
std::vector<CFX_WideString> CFXJS_Engine::GetObjectPropertyNames(
v8::Local<v8::Object> pObj) {
if (pObj.IsEmpty())
return std::vector<CFX_WideString>();
v8::Local<v8::Array> val;
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
if (!pObj->GetPropertyNames(context).ToLocal(&val))
return std::vector<CFX_WideString>();
std::vector<CFX_WideString> result;
for (uint32_t i = 0; i < val->Length(); ++i) {
result.push_back(ToWideString(val->Get(context, i).ToLocalChecked()));
}
return result;
}
void CFXJS_Engine::PutObjectProperty(v8::Local<v8::Object> pObj,
const CFX_WideString& wsPropertyName,
v8::Local<v8::Value> pPut) {
if (pObj.IsEmpty())
return;
pObj->Set(m_isolate->GetCurrentContext(),
NewString(wsPropertyName.AsStringC()), pPut)
.FromJust();
}
v8::Local<v8::Array> CFXJS_Engine::NewArray() {
return v8::Array::New(m_isolate);
}
unsigned CFXJS_Engine::PutArrayElement(v8::Local<v8::Array> pArray,
unsigned index,
v8::Local<v8::Value> pValue) {
if (pArray.IsEmpty())
return 0;
if (pArray->Set(m_isolate->GetCurrentContext(), index, pValue).IsNothing())
return 0;
return 1;
}
v8::Local<v8::Value> CFXJS_Engine::GetArrayElement(v8::Local<v8::Array> pArray,
unsigned index) {
if (pArray.IsEmpty())
return v8::Local<v8::Value>();
v8::Local<v8::Value> val;
if (!pArray->Get(m_isolate->GetCurrentContext(), index).ToLocal(&val))
return v8::Local<v8::Value>();
return val;
}
unsigned CFXJS_Engine::GetArrayLength(v8::Local<v8::Array> pArray) {
if (pArray.IsEmpty())
return 0;
return pArray->Length();
}
v8::Local<v8::Context> CFXJS_Engine::NewLocalContext() {
return v8::Local<v8::Context>::New(m_isolate, m_V8PersistentContext);
}
v8::Local<v8::Context> CFXJS_Engine::GetPersistentContext() {
return m_V8PersistentContext.Get(m_isolate);
}
v8::Local<v8::Value> CFXJS_Engine::NewNumber(int number) {
return v8::Int32::New(m_isolate, number);
}
v8::Local<v8::Value> CFXJS_Engine::NewNumber(double number) {
return v8::Number::New(m_isolate, number);
}
v8::Local<v8::Value> CFXJS_Engine::NewNumber(float number) {
return v8::Number::New(m_isolate, (float)number);
}
v8::Local<v8::Value> CFXJS_Engine::NewBoolean(bool b) {
return v8::Boolean::New(m_isolate, b);
}
v8::Local<v8::Value> CFXJS_Engine::NewString(const CFX_ByteStringC& str) {
v8::Isolate* pIsolate = m_isolate ? m_isolate : v8::Isolate::GetCurrent();
return v8::String::NewFromUtf8(pIsolate, str.c_str(),
v8::NewStringType::kNormal, str.GetLength())
.ToLocalChecked();
}
v8::Local<v8::Value> CFXJS_Engine::NewString(const CFX_WideStringC& str) {
return NewString(FX_UTF8Encode(str).AsStringC());
}
v8::Local<v8::Value> CFXJS_Engine::NewNull() {
return v8::Local<v8::Value>();
}
v8::Local<v8::Date> CFXJS_Engine::NewDate(double d) {
return v8::Date::New(m_isolate->GetCurrentContext(), d)
.ToLocalChecked()
.As<v8::Date>();
}
int CFXJS_Engine::ToInt32(v8::Local<v8::Value> pValue) {
if (pValue.IsEmpty())
return 0;
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
return pValue->ToInt32(context).ToLocalChecked()->Value();
}
bool CFXJS_Engine::ToBoolean(v8::Local<v8::Value> pValue) {
if (pValue.IsEmpty())
return false;
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
return pValue->ToBoolean(context).ToLocalChecked()->Value();
}
double CFXJS_Engine::ToDouble(v8::Local<v8::Value> pValue) {
if (pValue.IsEmpty())
return 0.0;
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
return pValue->ToNumber(context).ToLocalChecked()->Value();
}
CFX_WideString CFXJS_Engine::ToWideString(v8::Local<v8::Value> pValue) {
if (pValue.IsEmpty())
return CFX_WideString();
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
v8::String::Utf8Value s(pValue->ToString(context).ToLocalChecked());
return CFX_WideString::FromUTF8(CFX_ByteStringC(*s, s.length()));
}
v8::Local<v8::Object> CFXJS_Engine::ToObject(v8::Local<v8::Value> pValue) {
if (pValue.IsEmpty() || !pValue->IsObject())
return v8::Local<v8::Object>();
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
return pValue->ToObject(context).ToLocalChecked();
}
v8::Local<v8::Array> CFXJS_Engine::ToArray(v8::Local<v8::Value> pValue) {
if (pValue.IsEmpty() || !pValue->IsArray())
return v8::Local<v8::Array>();
v8::Local<v8::Context> context = m_isolate->GetCurrentContext();
return v8::Local<v8::Array>::Cast(pValue->ToObject(context).ToLocalChecked());
}
void CFXJS_Engine::SetConstArray(const CFX_WideString& name,
v8::Local<v8::Array> array) {
m_ConstArrays[name] = v8::Global<v8::Array>(GetIsolate(), array);
}
v8::Local<v8::Array> CFXJS_Engine::GetConstArray(const CFX_WideString& name) {
return v8::Local<v8::Array>::New(GetIsolate(), m_ConstArrays[name]);
}