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668 lines
24 KiB
668 lines
24 KiB
// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "fxjs/cfxjs_engine.h"
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#include <memory>
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#include <utility>
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#include <vector>
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#include "core/fxcrt/unowned_ptr.h"
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#include "fxjs/cjs_object.h"
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#include "fxjs/xfa/cfxjse_runtimedata.h"
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#include "third_party/base/ptr_util.h"
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#include "third_party/base/stl_util.h"
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#include "v8/include/v8-util.h"
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class CFXJS_PerObjectData;
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namespace {
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unsigned int g_embedderDataSlot = 1u;
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v8::Isolate* g_isolate = nullptr;
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size_t g_isolate_ref_count = 0;
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CFX_V8ArrayBufferAllocator* g_arrayBufferAllocator = nullptr;
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v8::Global<v8::ObjectTemplate>* g_DefaultGlobalObjectTemplate = nullptr;
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const wchar_t kPerObjectDataTag[] = L"CFXJS_PerObjectData";
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void* GetAlignedPointerForPerObjectDataTag() {
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return const_cast<void*>(static_cast<const void*>(kPerObjectDataTag));
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}
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std::pair<int, int> GetLineAndColumnFromError(v8::Local<v8::Message> message,
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v8::Local<v8::Context> context) {
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if (message.IsEmpty())
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return std::make_pair(-1, -1);
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return std::make_pair(message->GetLineNumber(context).FromMaybe(-1),
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message->GetStartColumn());
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}
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} // namespace
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// Global weak map to save dynamic objects.
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class V8TemplateMapTraits final
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: public v8::StdMapTraits<CFXJS_PerObjectData*, v8::Object> {
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public:
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using WeakCallbackDataType = CFXJS_PerObjectData;
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using MapType = v8::
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GlobalValueMap<WeakCallbackDataType*, v8::Object, V8TemplateMapTraits>;
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static const v8::PersistentContainerCallbackType kCallbackType =
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v8::kWeakWithInternalFields;
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static WeakCallbackDataType* WeakCallbackParameter(
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MapType* map,
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WeakCallbackDataType* key,
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v8::Local<v8::Object> value) {
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return key;
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}
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static MapType* MapFromWeakCallbackInfo(
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const v8::WeakCallbackInfo<WeakCallbackDataType>&);
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static WeakCallbackDataType* KeyFromWeakCallbackInfo(
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const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
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return data.GetParameter();
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}
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static void OnWeakCallback(
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const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {}
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static void DisposeWeak(
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const v8::WeakCallbackInfo<WeakCallbackDataType>& data);
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static void Dispose(v8::Isolate* isolate,
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v8::Global<v8::Object> value,
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WeakCallbackDataType* key);
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static void DisposeCallbackData(WeakCallbackDataType* callbackData) {}
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};
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class V8TemplateMap {
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public:
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using WeakCallbackDataType = CFXJS_PerObjectData;
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using MapType = v8::
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GlobalValueMap<WeakCallbackDataType*, v8::Object, V8TemplateMapTraits>;
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explicit V8TemplateMap(v8::Isolate* isolate) : m_map(isolate) {}
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~V8TemplateMap() = default;
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void SetAndMakeWeak(WeakCallbackDataType* key, v8::Local<v8::Object> handle) {
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ASSERT(!m_map.Contains(key));
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// Inserting an object into a GlobalValueMap with the appropriate traits
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// has the side-effect of making the object weak deep in the guts of V8,
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// and arranges for it to be cleaned up by the methods in the traits.
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m_map.Set(key, handle);
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}
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friend class V8TemplateMapTraits;
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private:
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MapType m_map;
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};
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class CFXJS_PerObjectData {
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public:
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explicit CFXJS_PerObjectData(int nObjDefID) : m_ObjDefID(nObjDefID) {}
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~CFXJS_PerObjectData() = default;
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static void SetInObject(CFXJS_PerObjectData* pData,
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v8::Local<v8::Object> pObj) {
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if (pObj->InternalFieldCount() == 2) {
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pObj->SetAlignedPointerInInternalField(
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0, GetAlignedPointerForPerObjectDataTag());
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pObj->SetAlignedPointerInInternalField(1, pData);
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}
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}
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static CFXJS_PerObjectData* GetFromObject(v8::Local<v8::Object> pObj) {
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if (pObj.IsEmpty() || pObj->InternalFieldCount() != 2 ||
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pObj->GetAlignedPointerFromInternalField(0) !=
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GetAlignedPointerForPerObjectDataTag()) {
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return nullptr;
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}
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return static_cast<CFXJS_PerObjectData*>(
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pObj->GetAlignedPointerFromInternalField(1));
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}
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const int m_ObjDefID;
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std::unique_ptr<CJS_Object> m_pPrivate;
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};
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class CFXJS_ObjDefinition {
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public:
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CFXJS_ObjDefinition(v8::Isolate* isolate,
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const char* sObjName,
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FXJSOBJTYPE eObjType,
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CFXJS_Engine::Constructor pConstructor,
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CFXJS_Engine::Destructor pDestructor)
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: m_ObjName(sObjName),
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m_ObjType(eObjType),
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m_pConstructor(pConstructor),
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m_pDestructor(pDestructor),
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m_pIsolate(isolate) {
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v8::Isolate::Scope isolate_scope(isolate);
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v8::HandleScope handle_scope(isolate);
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v8::Local<v8::FunctionTemplate> fun = v8::FunctionTemplate::New(isolate);
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fun->InstanceTemplate()->SetInternalFieldCount(2);
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fun->SetCallHandler(CallHandler, v8::Number::New(isolate, eObjType));
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if (eObjType == FXJSOBJTYPE_GLOBAL) {
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fun->InstanceTemplate()->Set(
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v8::Symbol::GetToStringTag(isolate),
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v8::String::NewFromUtf8(isolate, "global", v8::NewStringType::kNormal)
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.ToLocalChecked());
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}
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m_FunctionTemplate.Reset(isolate, fun);
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m_Signature.Reset(isolate, v8::Signature::New(isolate, fun));
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}
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static void CallHandler(const v8::FunctionCallbackInfo<v8::Value>& info) {
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v8::Isolate* isolate = info.GetIsolate();
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if (!info.IsConstructCall()) {
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isolate->ThrowException(
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v8::String::NewFromUtf8(isolate, "illegal constructor",
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v8::NewStringType::kNormal)
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.ToLocalChecked());
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return;
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}
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if (info.Data().As<v8::Int32>()->Value() != FXJSOBJTYPE_DYNAMIC) {
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isolate->ThrowException(
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v8::String::NewFromUtf8(isolate, "not a dynamic object",
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v8::NewStringType::kNormal)
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.ToLocalChecked());
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return;
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}
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v8::Local<v8::Object> holder = info.Holder();
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ASSERT(holder->InternalFieldCount() == 2);
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holder->SetAlignedPointerInInternalField(0, nullptr);
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holder->SetAlignedPointerInInternalField(1, nullptr);
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}
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v8::Isolate* GetIsolate() const { return m_pIsolate.Get(); }
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void DefineConst(const char* sConstName, v8::Local<v8::Value> pDefault) {
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GetInstanceTemplate()->Set(GetIsolate(), sConstName, pDefault);
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}
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void DefineProperty(v8::Local<v8::String> sPropName,
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v8::AccessorGetterCallback pPropGet,
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v8::AccessorSetterCallback pPropPut) {
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GetInstanceTemplate()->SetAccessor(sPropName, pPropGet, pPropPut);
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}
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void DefineMethod(v8::Local<v8::String> sMethodName,
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v8::FunctionCallback pMethodCall) {
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v8::Local<v8::FunctionTemplate> fun = v8::FunctionTemplate::New(
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GetIsolate(), pMethodCall, v8::Local<v8::Value>(), GetSignature());
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fun->RemovePrototype();
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GetInstanceTemplate()->Set(sMethodName, fun, v8::ReadOnly);
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}
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void DefineAllProperties(v8::GenericNamedPropertyQueryCallback pPropQurey,
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v8::GenericNamedPropertyGetterCallback pPropGet,
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v8::GenericNamedPropertySetterCallback pPropPut,
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v8::GenericNamedPropertyDeleterCallback pPropDel) {
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GetInstanceTemplate()->SetHandler(v8::NamedPropertyHandlerConfiguration(
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pPropGet, pPropPut, pPropQurey, pPropDel, nullptr,
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v8::Local<v8::Value>(),
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v8::PropertyHandlerFlags::kOnlyInterceptStrings));
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}
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v8::Local<v8::ObjectTemplate> GetInstanceTemplate() {
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v8::EscapableHandleScope scope(GetIsolate());
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v8::Local<v8::FunctionTemplate> function =
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m_FunctionTemplate.Get(GetIsolate());
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return scope.Escape(function->InstanceTemplate());
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}
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v8::Local<v8::Signature> GetSignature() {
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v8::EscapableHandleScope scope(GetIsolate());
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return scope.Escape(m_Signature.Get(GetIsolate()));
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}
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const char* const m_ObjName;
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const FXJSOBJTYPE m_ObjType;
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const CFXJS_Engine::Constructor m_pConstructor;
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const CFXJS_Engine::Destructor m_pDestructor;
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UnownedPtr<v8::Isolate> m_pIsolate;
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v8::Global<v8::FunctionTemplate> m_FunctionTemplate;
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v8::Global<v8::Signature> m_Signature;
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};
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static v8::Local<v8::ObjectTemplate> GetGlobalObjectTemplate(
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v8::Isolate* pIsolate) {
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FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(pIsolate);
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for (int i = 0; i < pIsolateData->MaxObjDefinitionID(); ++i) {
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CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(i);
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if (pObjDef->m_ObjType == FXJSOBJTYPE_GLOBAL)
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return pObjDef->GetInstanceTemplate();
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}
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if (!g_DefaultGlobalObjectTemplate) {
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v8::Local<v8::ObjectTemplate> hGlobalTemplate =
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v8::ObjectTemplate::New(pIsolate);
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hGlobalTemplate->Set(
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v8::Symbol::GetToStringTag(pIsolate),
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v8::String::NewFromUtf8(pIsolate, "global", v8::NewStringType::kNormal)
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.ToLocalChecked());
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g_DefaultGlobalObjectTemplate =
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new v8::Global<v8::ObjectTemplate>(pIsolate, hGlobalTemplate);
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}
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return g_DefaultGlobalObjectTemplate->Get(pIsolate);
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}
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void V8TemplateMapTraits::Dispose(v8::Isolate* isolate,
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v8::Global<v8::Object> value,
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WeakCallbackDataType* key) {
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v8::Local<v8::Object> obj = value.Get(isolate);
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if (obj.IsEmpty())
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return;
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int id = CFXJS_Engine::GetObjDefnID(obj);
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if (id == -1)
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return;
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FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(isolate);
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CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(id);
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if (!pObjDef)
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return;
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if (pObjDef->m_pDestructor)
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pObjDef->m_pDestructor(obj);
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CFXJS_Engine::FreeObjectPrivate(obj);
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}
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void V8TemplateMapTraits::DisposeWeak(
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const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
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// TODO(tsepez): this is expected be called during GC.
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}
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V8TemplateMapTraits::MapType* V8TemplateMapTraits::MapFromWeakCallbackInfo(
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const v8::WeakCallbackInfo<WeakCallbackDataType>& data) {
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V8TemplateMap* pMap =
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FXJS_PerIsolateData::Get(data.GetIsolate())->m_pDynamicObjsMap.get();
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return pMap ? &pMap->m_map : nullptr;
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}
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void FXJS_Initialize(unsigned int embedderDataSlot, v8::Isolate* pIsolate) {
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if (g_isolate) {
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ASSERT(g_embedderDataSlot == embedderDataSlot);
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ASSERT(g_isolate == pIsolate);
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return;
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}
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g_embedderDataSlot = embedderDataSlot;
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g_isolate = pIsolate;
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}
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void FXJS_Release() {
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ASSERT(!g_isolate || g_isolate_ref_count == 0);
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delete g_DefaultGlobalObjectTemplate;
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g_DefaultGlobalObjectTemplate = nullptr;
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g_isolate = nullptr;
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delete g_arrayBufferAllocator;
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g_arrayBufferAllocator = nullptr;
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}
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bool FXJS_GetIsolate(v8::Isolate** pResultIsolate) {
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if (g_isolate) {
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*pResultIsolate = g_isolate;
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return false;
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}
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// Provide backwards compatibility when no external isolate.
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if (!g_arrayBufferAllocator)
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g_arrayBufferAllocator = new CFX_V8ArrayBufferAllocator();
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v8::Isolate::CreateParams params;
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params.array_buffer_allocator = g_arrayBufferAllocator;
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*pResultIsolate = v8::Isolate::New(params);
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return true;
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}
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size_t FXJS_GlobalIsolateRefCount() {
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return g_isolate_ref_count;
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}
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FXJS_PerIsolateData::~FXJS_PerIsolateData() {}
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// static
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void FXJS_PerIsolateData::SetUp(v8::Isolate* pIsolate) {
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if (!pIsolate->GetData(g_embedderDataSlot))
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pIsolate->SetData(g_embedderDataSlot, new FXJS_PerIsolateData(pIsolate));
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}
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// static
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FXJS_PerIsolateData* FXJS_PerIsolateData::Get(v8::Isolate* pIsolate) {
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return static_cast<FXJS_PerIsolateData*>(
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pIsolate->GetData(g_embedderDataSlot));
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}
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int FXJS_PerIsolateData::MaxObjDefinitionID() const {
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return pdfium::CollectionSize<int>(m_ObjectDefnArray);
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}
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FXJS_PerIsolateData::FXJS_PerIsolateData(v8::Isolate* pIsolate)
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: m_pDynamicObjsMap(new V8TemplateMap(pIsolate)) {}
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CFXJS_ObjDefinition* FXJS_PerIsolateData::ObjDefinitionForID(int id) const {
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return (id >= 0 && id < MaxObjDefinitionID()) ? m_ObjectDefnArray[id].get()
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: nullptr;
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}
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int FXJS_PerIsolateData::AssignIDForObjDefinition(
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std::unique_ptr<CFXJS_ObjDefinition> pDefn) {
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m_ObjectDefnArray.push_back(std::move(pDefn));
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return m_ObjectDefnArray.size() - 1;
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}
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CFXJS_Engine::CFXJS_Engine() : CFX_V8(nullptr) {}
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CFXJS_Engine::CFXJS_Engine(v8::Isolate* pIsolate) : CFX_V8(pIsolate) {}
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CFXJS_Engine::~CFXJS_Engine() = default;
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// static
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int CFXJS_Engine::GetObjDefnID(v8::Local<v8::Object> pObj) {
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CFXJS_PerObjectData* pData = CFXJS_PerObjectData::GetFromObject(pObj);
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return pData ? pData->m_ObjDefID : -1;
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}
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// static
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void CFXJS_Engine::SetObjectPrivate(v8::Local<v8::Object> pObj,
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std::unique_ptr<CJS_Object> p) {
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CFXJS_PerObjectData* pPerObjectData =
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CFXJS_PerObjectData::GetFromObject(pObj);
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if (!pPerObjectData)
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return;
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pPerObjectData->m_pPrivate = std::move(p);
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}
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// static
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void CFXJS_Engine::FreeObjectPrivate(v8::Local<v8::Object> pObj) {
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CFXJS_PerObjectData* pData = CFXJS_PerObjectData::GetFromObject(pObj);
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pObj->SetAlignedPointerInInternalField(0, nullptr);
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pObj->SetAlignedPointerInInternalField(1, nullptr);
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delete pData;
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}
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int CFXJS_Engine::DefineObj(const char* sObjName,
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FXJSOBJTYPE eObjType,
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CFXJS_Engine::Constructor pConstructor,
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CFXJS_Engine::Destructor pDestructor) {
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v8::Isolate::Scope isolate_scope(GetIsolate());
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v8::HandleScope handle_scope(GetIsolate());
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FXJS_PerIsolateData::SetUp(GetIsolate());
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FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
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return pIsolateData->AssignIDForObjDefinition(
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pdfium::MakeUnique<CFXJS_ObjDefinition>(GetIsolate(), sObjName, eObjType,
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pConstructor, pDestructor));
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}
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void CFXJS_Engine::DefineObjMethod(int nObjDefnID,
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const char* sMethodName,
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v8::FunctionCallback pMethodCall) {
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v8::Isolate::Scope isolate_scope(GetIsolate());
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v8::HandleScope handle_scope(GetIsolate());
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FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
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CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(nObjDefnID);
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pObjDef->DefineMethod(NewString(sMethodName), pMethodCall);
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}
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void CFXJS_Engine::DefineObjProperty(int nObjDefnID,
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const char* sPropName,
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v8::AccessorGetterCallback pPropGet,
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v8::AccessorSetterCallback pPropPut) {
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v8::Isolate::Scope isolate_scope(GetIsolate());
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v8::HandleScope handle_scope(GetIsolate());
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FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
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CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(nObjDefnID);
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pObjDef->DefineProperty(NewString(sPropName), pPropGet, pPropPut);
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}
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void CFXJS_Engine::DefineObjAllProperties(
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int nObjDefnID,
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v8::GenericNamedPropertyQueryCallback pPropQurey,
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v8::GenericNamedPropertyGetterCallback pPropGet,
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v8::GenericNamedPropertySetterCallback pPropPut,
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v8::GenericNamedPropertyDeleterCallback pPropDel) {
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v8::Isolate::Scope isolate_scope(GetIsolate());
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v8::HandleScope handle_scope(GetIsolate());
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FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
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CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(nObjDefnID);
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pObjDef->DefineAllProperties(pPropQurey, pPropGet, pPropPut, pPropDel);
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}
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void CFXJS_Engine::DefineObjConst(int nObjDefnID,
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const char* sConstName,
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v8::Local<v8::Value> pDefault) {
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v8::Isolate::Scope isolate_scope(GetIsolate());
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v8::HandleScope handle_scope(GetIsolate());
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FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
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CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(nObjDefnID);
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pObjDef->DefineConst(sConstName, pDefault);
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}
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void CFXJS_Engine::DefineGlobalMethod(const char* sMethodName,
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v8::FunctionCallback pMethodCall) {
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v8::Isolate::Scope isolate_scope(GetIsolate());
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v8::HandleScope handle_scope(GetIsolate());
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v8::Local<v8::FunctionTemplate> fun =
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v8::FunctionTemplate::New(GetIsolate(), pMethodCall);
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fun->RemovePrototype();
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GetGlobalObjectTemplate(GetIsolate())
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->Set(NewString(sMethodName), fun, v8::ReadOnly);
|
|
}
|
|
|
|
void CFXJS_Engine::DefineGlobalConst(const wchar_t* sConstName,
|
|
v8::FunctionCallback pConstGetter) {
|
|
v8::Isolate::Scope isolate_scope(GetIsolate());
|
|
v8::HandleScope handle_scope(GetIsolate());
|
|
v8::Local<v8::FunctionTemplate> fun =
|
|
v8::FunctionTemplate::New(GetIsolate(), pConstGetter);
|
|
fun->RemovePrototype();
|
|
GetGlobalObjectTemplate(GetIsolate())
|
|
->SetAccessorProperty(NewString(sConstName), fun);
|
|
}
|
|
|
|
void CFXJS_Engine::InitializeEngine() {
|
|
if (GetIsolate() == g_isolate)
|
|
++g_isolate_ref_count;
|
|
|
|
v8::Isolate::Scope isolate_scope(GetIsolate());
|
|
v8::HandleScope handle_scope(GetIsolate());
|
|
|
|
// This has to happen before we call GetGlobalObjectTemplate because that
|
|
// method gets the PerIsolateData from GetIsolate().
|
|
FXJS_PerIsolateData::SetUp(GetIsolate());
|
|
|
|
v8::Local<v8::Context> v8Context = v8::Context::New(
|
|
GetIsolate(), nullptr, GetGlobalObjectTemplate(GetIsolate()));
|
|
|
|
// May not have the internal fields when called from tests.
|
|
v8::Local<v8::Object> pThisProxy = v8Context->Global();
|
|
if (pThisProxy->InternalFieldCount() == 2) {
|
|
pThisProxy->SetAlignedPointerInInternalField(0, nullptr);
|
|
pThisProxy->SetAlignedPointerInInternalField(1, nullptr);
|
|
}
|
|
v8::Local<v8::Object> pThis = pThisProxy->GetPrototype().As<v8::Object>();
|
|
if (pThis->InternalFieldCount() == 2) {
|
|
pThis->SetAlignedPointerInInternalField(0, nullptr);
|
|
pThis->SetAlignedPointerInInternalField(1, nullptr);
|
|
}
|
|
|
|
v8::Context::Scope context_scope(v8Context);
|
|
FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
|
|
int maxID = pIsolateData->MaxObjDefinitionID();
|
|
m_StaticObjects.resize(maxID + 1);
|
|
for (int i = 0; i < maxID; ++i) {
|
|
CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(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 = NewString(pObjDef->m_ObjName);
|
|
v8::Local<v8::Object> obj = NewFXJSBoundObject(i, FXJSOBJTYPE_STATIC);
|
|
if (!obj.IsEmpty()) {
|
|
v8Context->Global()->Set(v8Context, pObjName, obj).FromJust();
|
|
m_StaticObjects[i] = v8::Global<v8::Object>(GetIsolate(), obj);
|
|
}
|
|
}
|
|
}
|
|
m_V8Context.Reset(GetIsolate(), v8Context);
|
|
}
|
|
|
|
void CFXJS_Engine::ReleaseEngine() {
|
|
v8::Isolate::Scope isolate_scope(GetIsolate());
|
|
v8::HandleScope handle_scope(GetIsolate());
|
|
v8::Local<v8::Context> context = GetV8Context();
|
|
v8::Context::Scope context_scope(context);
|
|
FXJS_PerIsolateData* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
|
|
if (!pIsolateData)
|
|
return;
|
|
|
|
m_ConstArrays.clear();
|
|
|
|
for (int i = 0; i < pIsolateData->MaxObjDefinitionID(); ++i) {
|
|
CFXJS_ObjDefinition* pObjDef = pIsolateData->ObjDefinitionForID(i);
|
|
v8::Local<v8::Object> pObj;
|
|
if (pObjDef->m_ObjType == FXJSOBJTYPE_GLOBAL) {
|
|
pObj =
|
|
context->Global()->GetPrototype()->ToObject(context).ToLocalChecked();
|
|
} else if (!m_StaticObjects[i].IsEmpty()) {
|
|
pObj = v8::Local<v8::Object>::New(GetIsolate(), m_StaticObjects[i]);
|
|
m_StaticObjects[i].Reset();
|
|
}
|
|
if (!pObj.IsEmpty()) {
|
|
if (pObjDef->m_pDestructor)
|
|
pObjDef->m_pDestructor(pObj);
|
|
FreeObjectPrivate(pObj);
|
|
}
|
|
}
|
|
|
|
m_V8Context.Reset();
|
|
|
|
if (GetIsolate() == g_isolate && --g_isolate_ref_count > 0)
|
|
return;
|
|
|
|
delete pIsolateData;
|
|
GetIsolate()->SetData(g_embedderDataSlot, nullptr);
|
|
}
|
|
|
|
Optional<IJS_Runtime::JS_Error> CFXJS_Engine::Execute(
|
|
const WideString& script) {
|
|
v8::Isolate::Scope isolate_scope(GetIsolate());
|
|
v8::TryCatch try_catch(GetIsolate());
|
|
v8::Local<v8::Context> context = GetIsolate()->GetCurrentContext();
|
|
v8::Local<v8::Script> compiled_script;
|
|
if (!v8::Script::Compile(context, NewString(script.AsStringView()))
|
|
.ToLocal(&compiled_script)) {
|
|
v8::String::Utf8Value error(GetIsolate(), try_catch.Exception());
|
|
v8::Local<v8::Message> msg = try_catch.Message();
|
|
int line = -1;
|
|
int column = -1;
|
|
std::tie(line, column) = GetLineAndColumnFromError(msg, context);
|
|
return IJS_Runtime::JS_Error(line, column, WideString::FromUTF8(*error));
|
|
}
|
|
|
|
v8::Local<v8::Value> result;
|
|
if (!compiled_script->Run(context).ToLocal(&result)) {
|
|
v8::String::Utf8Value error(GetIsolate(), try_catch.Exception());
|
|
auto msg = try_catch.Message();
|
|
int line = -1;
|
|
int column = -1;
|
|
std::tie(line, column) = GetLineAndColumnFromError(msg, context);
|
|
return IJS_Runtime::JS_Error(line, column, WideString::FromUTF8(*error));
|
|
}
|
|
return pdfium::nullopt;
|
|
}
|
|
|
|
v8::Local<v8::Object> CFXJS_Engine::NewFXJSBoundObject(int nObjDefnID,
|
|
FXJSOBJTYPE type) {
|
|
v8::Isolate::Scope isolate_scope(GetIsolate());
|
|
v8::Local<v8::Context> context = GetIsolate()->GetCurrentContext();
|
|
FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(GetIsolate());
|
|
if (!pData)
|
|
return v8::Local<v8::Object>();
|
|
|
|
CFXJS_ObjDefinition* pObjDef = pData->ObjDefinitionForID(nObjDefnID);
|
|
if (!pObjDef)
|
|
return v8::Local<v8::Object>();
|
|
|
|
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 (type == FXJSOBJTYPE_DYNAMIC) {
|
|
auto* pIsolateData = FXJS_PerIsolateData::Get(GetIsolate());
|
|
if (pIsolateData->m_pDynamicObjsMap)
|
|
pIsolateData->m_pDynamicObjsMap->SetAndMakeWeak(pObjData, obj);
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
v8::Local<v8::Object> CFXJS_Engine::GetThisObj() {
|
|
v8::Isolate::Scope isolate_scope(GetIsolate());
|
|
if (!FXJS_PerIsolateData::Get(GetIsolate()))
|
|
return v8::Local<v8::Object>();
|
|
|
|
// Return the global object.
|
|
v8::Local<v8::Context> context = GetIsolate()->GetCurrentContext();
|
|
return context->Global()->GetPrototype()->ToObject(context).ToLocalChecked();
|
|
}
|
|
|
|
void CFXJS_Engine::Error(const WideString& message) {
|
|
GetIsolate()->ThrowException(NewString(message.AsStringView()));
|
|
}
|
|
|
|
v8::Local<v8::Context> CFXJS_Engine::GetV8Context() {
|
|
return v8::Local<v8::Context>::New(GetIsolate(), m_V8Context);
|
|
}
|
|
|
|
// static
|
|
CJS_Object* CFXJS_Engine::GetObjectPrivate(v8::Local<v8::Object> pObj) {
|
|
auto* pData = CFXJS_PerObjectData::GetFromObject(pObj);
|
|
if (pData)
|
|
return pData->m_pPrivate.get();
|
|
|
|
if (pObj.IsEmpty())
|
|
return nullptr;
|
|
|
|
// It could be a global proxy object, in which case the prototype holds
|
|
// the actual bound object.
|
|
v8::Local<v8::Value> val = pObj->GetPrototype();
|
|
if (!val->IsObject())
|
|
return nullptr;
|
|
|
|
auto* pProtoData = CFXJS_PerObjectData::GetFromObject(val.As<v8::Object>());
|
|
if (!pProtoData)
|
|
return nullptr;
|
|
|
|
auto* pIsolateData = FXJS_PerIsolateData::Get(v8::Isolate::GetCurrent());
|
|
if (!pIsolateData)
|
|
return nullptr;
|
|
|
|
CFXJS_ObjDefinition* pObjDef =
|
|
pIsolateData->ObjDefinitionForID(pProtoData->m_ObjDefID);
|
|
if (!pObjDef || pObjDef->m_ObjType != FXJSOBJTYPE_GLOBAL)
|
|
return nullptr;
|
|
|
|
return pProtoData->m_pPrivate.get();
|
|
}
|
|
|
|
v8::Local<v8::Array> CFXJS_Engine::GetConstArray(const WideString& name) {
|
|
return v8::Local<v8::Array>::New(GetIsolate(), m_ConstArrays[name]);
|
|
}
|
|
|
|
void CFXJS_Engine::SetConstArray(const WideString& name,
|
|
v8::Local<v8::Array> array) {
|
|
m_ConstArrays[name] = v8::Global<v8::Array>(GetIsolate(), array);
|
|
}
|