739 lines
26 KiB
C++
739 lines
26 KiB
C++
// 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/fxjs_v8.h"
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#include <vector>
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#include "core/fxcrt/fx_basic.h"
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// Keep this consistent with the values defined in gin/public/context_holder.h
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// (without actually requiring a dependency on gin itself for the standalone
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// embedders of PDFIum). The value we want to use is:
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// kPerContextDataStartIndex + kEmbedderPDFium, which is 3.
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static const unsigned int kPerContextDataIndex = 3u;
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static unsigned int g_embedderDataSlot = 1u;
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static v8::Isolate* g_isolate = nullptr;
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static size_t g_isolate_ref_count = 0;
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static FXJS_ArrayBufferAllocator* g_arrayBufferAllocator = nullptr;
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static v8::Global<v8::ObjectTemplate>* g_DefaultGlobalObjectTemplate = nullptr;
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static wchar_t kPerObjectDataTag[] = L"CFXJS_PerObjectData";
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class CFXJS_PerObjectData {
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public:
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explicit CFXJS_PerObjectData(int nObjDefID)
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: m_ObjDefID(nObjDefID), m_pPrivate(nullptr) {}
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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(0, pData);
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pObj->SetAlignedPointerInInternalField(
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1, static_cast<void*>(kPerObjectDataTag));
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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(1) !=
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static_cast<void*>(kPerObjectDataTag)) {
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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(0));
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}
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const int m_ObjDefID;
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void* m_pPrivate;
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};
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class CFXJS_ObjDefinition {
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public:
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static int MaxID(v8::Isolate* pIsolate) {
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return FXJS_PerIsolateData::Get(pIsolate)->m_ObjectDefnArray.size();
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}
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static CFXJS_ObjDefinition* ForID(v8::Isolate* pIsolate, int id) {
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// Note: GetAt() halts if out-of-range even in release builds.
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return FXJS_PerIsolateData::Get(pIsolate)->m_ObjectDefnArray[id].get();
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}
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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([](const v8::FunctionCallbackInfo<v8::Value>& info) {
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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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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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v8::Local<v8::Signature> sig = v8::Signature::New(isolate, fun);
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m_Signature.Reset(isolate, sig);
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}
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int AssignID() {
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FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(m_pIsolate);
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pData->m_ObjectDefnArray.emplace_back(this);
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return pData->m_ObjectDefnArray.size() - 1;
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}
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v8::Local<v8::ObjectTemplate> GetInstanceTemplate() {
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v8::EscapableHandleScope scope(m_pIsolate);
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v8::Local<v8::FunctionTemplate> function =
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m_FunctionTemplate.Get(m_pIsolate);
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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(m_pIsolate);
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return scope.Escape(m_Signature.Get(m_pIsolate));
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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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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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int maxID = CFXJS_ObjDefinition::MaxID(pIsolate);
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for (int i = 0; i < maxID; ++i) {
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CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(pIsolate, 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* FXJS_ArrayBufferAllocator::Allocate(size_t length) {
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return calloc(1, length);
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}
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void* FXJS_ArrayBufferAllocator::AllocateUninitialized(size_t length) {
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return malloc(length);
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}
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void FXJS_ArrayBufferAllocator::Free(void* data, size_t length) {
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free(data);
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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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void* 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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CFXJS_Engine* pEngine = CFXJS_Engine::CurrentEngineFromIsolate(isolate);
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int id = pEngine->GetObjDefnID(obj);
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if (id == -1)
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return;
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CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(isolate, 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(pEngine, obj);
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CFXJS_Engine::FreeObjectPrivate(obj);
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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 FXJS_ArrayBufferAllocator();
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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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V8TemplateMap::V8TemplateMap(v8::Isolate* isolate) : m_map(isolate) {}
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V8TemplateMap::~V8TemplateMap() {}
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void V8TemplateMap::set(void* key, v8::Local<v8::Object> handle) {
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ASSERT(!m_map.Contains(key));
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m_map.Set(key, handle);
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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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FXJS_PerIsolateData::FXJS_PerIsolateData(v8::Isolate* pIsolate)
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: m_pDynamicObjsMap(new V8TemplateMap(pIsolate)) {}
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CFXJS_Engine::CFXJS_Engine() : m_isolate(nullptr) {}
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CFXJS_Engine::CFXJS_Engine(v8::Isolate* pIsolate) : m_isolate(pIsolate) {}
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CFXJS_Engine::~CFXJS_Engine() {
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m_V8PersistentContext.Reset();
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}
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// static
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CFXJS_Engine* CFXJS_Engine::CurrentEngineFromIsolate(v8::Isolate* pIsolate) {
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return static_cast<CFXJS_Engine*>(
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pIsolate->GetCurrentContext()->GetAlignedPointerFromEmbedderData(
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kPerContextDataIndex));
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}
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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::FreeObjectPrivate(void* pPerObjectData) {
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delete static_cast<CFXJS_PerObjectData*>(pPerObjectData);
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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(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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FXJS_PerIsolateData::SetUp(m_isolate);
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CFXJS_ObjDefinition* pObjDef = new CFXJS_ObjDefinition(
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m_isolate, sObjName, eObjType, pConstructor, pDestructor);
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return pObjDef->AssignID();
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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(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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CFXJS_ObjDefinition* pObjDef =
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CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
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v8::Local<v8::FunctionTemplate> fun = v8::FunctionTemplate::New(
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m_isolate, pMethodCall, v8::Local<v8::Value>(), pObjDef->GetSignature());
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fun->RemovePrototype();
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pObjDef->GetInstanceTemplate()->Set(
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v8::String::NewFromUtf8(m_isolate, sMethodName,
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v8::NewStringType::kNormal)
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.ToLocalChecked(),
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fun, v8::ReadOnly);
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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(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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CFXJS_ObjDefinition* pObjDef =
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CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
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pObjDef->GetInstanceTemplate()->SetAccessor(
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v8::String::NewFromUtf8(m_isolate, sPropName, v8::NewStringType::kNormal)
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.ToLocalChecked(),
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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::NamedPropertyQueryCallback pPropQurey,
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v8::NamedPropertyGetterCallback pPropGet,
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v8::NamedPropertySetterCallback pPropPut,
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v8::NamedPropertyDeleterCallback pPropDel) {
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v8::Isolate::Scope isolate_scope(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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CFXJS_ObjDefinition* pObjDef =
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CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
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pObjDef->GetInstanceTemplate()->SetNamedPropertyHandler(pPropGet, pPropPut,
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pPropQurey, 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(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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CFXJS_ObjDefinition* pObjDef =
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CFXJS_ObjDefinition::ForID(m_isolate, nObjDefnID);
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pObjDef->GetInstanceTemplate()->Set(m_isolate, 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(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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v8::Local<v8::FunctionTemplate> fun =
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v8::FunctionTemplate::New(m_isolate, pMethodCall);
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fun->RemovePrototype();
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GetGlobalObjectTemplate(m_isolate)->Set(
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v8::String::NewFromUtf8(m_isolate, sMethodName,
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v8::NewStringType::kNormal)
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.ToLocalChecked(),
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fun, v8::ReadOnly);
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}
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void CFXJS_Engine::DefineGlobalConst(const wchar_t* sConstName,
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v8::FunctionCallback pConstGetter) {
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v8::Isolate::Scope isolate_scope(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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CFX_ByteString bsConst = FX_UTF8Encode(CFX_WideStringC(sConstName));
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v8::Local<v8::FunctionTemplate> fun =
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v8::FunctionTemplate::New(m_isolate, pConstGetter);
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fun->RemovePrototype();
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GetGlobalObjectTemplate(m_isolate)->SetAccessorProperty(
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v8::String::NewFromUtf8(m_isolate, bsConst.c_str(),
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v8::NewStringType::kNormal)
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.ToLocalChecked(),
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fun);
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}
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void CFXJS_Engine::InitializeEngine() {
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if (m_isolate == g_isolate)
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++g_isolate_ref_count;
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v8::Isolate::Scope isolate_scope(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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// This has to happen before we call GetGlobalObjectTemplate because that
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// method gets the PerIsolateData from m_isolate.
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FXJS_PerIsolateData::SetUp(m_isolate);
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v8::Local<v8::Context> v8Context =
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v8::Context::New(m_isolate, nullptr, GetGlobalObjectTemplate(m_isolate));
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v8::Context::Scope context_scope(v8Context);
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v8Context->SetAlignedPointerInEmbedderData(kPerContextDataIndex, this);
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int maxID = CFXJS_ObjDefinition::MaxID(m_isolate);
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m_StaticObjects.resize(maxID + 1);
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for (int i = 0; i < maxID; ++i) {
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CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(m_isolate, i);
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if (pObjDef->m_ObjType == FXJSOBJTYPE_GLOBAL) {
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CFXJS_PerObjectData::SetInObject(new CFXJS_PerObjectData(i),
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v8Context->Global()
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->GetPrototype()
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->ToObject(v8Context)
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.ToLocalChecked());
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if (pObjDef->m_pConstructor) {
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pObjDef->m_pConstructor(this, v8Context->Global()
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->GetPrototype()
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->ToObject(v8Context)
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.ToLocalChecked());
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}
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} else if (pObjDef->m_ObjType == FXJSOBJTYPE_STATIC) {
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v8::Local<v8::String> pObjName =
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v8::String::NewFromUtf8(m_isolate, pObjDef->m_ObjName,
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v8::NewStringType::kNormal,
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strlen(pObjDef->m_ObjName))
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.ToLocalChecked();
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v8::Local<v8::Object> obj = NewFxDynamicObj(i, true);
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v8Context->Global()->Set(v8Context, pObjName, obj).FromJust();
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m_StaticObjects[i] = new v8::Global<v8::Object>(m_isolate, obj);
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}
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}
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m_V8PersistentContext.Reset(m_isolate, v8Context);
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}
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void CFXJS_Engine::ReleaseEngine() {
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v8::Isolate::Scope isolate_scope(m_isolate);
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v8::HandleScope handle_scope(m_isolate);
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v8::Local<v8::Context> context =
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v8::Local<v8::Context>::New(m_isolate, m_V8PersistentContext);
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v8::Context::Scope context_scope(context);
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FXJS_PerIsolateData* pData = FXJS_PerIsolateData::Get(m_isolate);
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if (!pData)
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return;
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m_ConstArrays.clear();
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int maxID = CFXJS_ObjDefinition::MaxID(m_isolate);
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for (int i = 0; i < maxID; ++i) {
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CFXJS_ObjDefinition* pObjDef = CFXJS_ObjDefinition::ForID(m_isolate, i);
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v8::Local<v8::Object> pObj;
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if (pObjDef->m_ObjType == FXJSOBJTYPE_GLOBAL) {
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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]);
|
|
}
|