// 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/cjs_global.h"
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#include <map>
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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/fx_extension.h"
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#include "fxjs/JS_Define.h"
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#include "fxjs/cjs_event_context.h"
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#include "fxjs/cjs_eventhandler.h"
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#include "fxjs/cjs_globaldata.h"
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#include "fxjs/cjs_keyvalue.h"
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#include "fxjs/cjs_object.h"
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#include "fxjs/js_resources.h"
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namespace {
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WideString PropFromV8Prop(v8::Isolate* pIsolate,
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v8::Local<v8::String> property) {
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v8::String::Utf8Value utf8_value(pIsolate, property);
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return WideString::FromUTF8(ByteStringView(*utf8_value, utf8_value.length()));
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}
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template <class Alt>
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void JSSpecialPropQuery(const char*,
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v8::Local<v8::String> property,
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const v8::PropertyCallbackInfo<v8::Integer>& info) {
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CJS_Runtime* pRuntime =
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CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
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if (!pRuntime)
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return;
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CJS_Object* pJSObj =
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static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
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if (!pJSObj)
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return;
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Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
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CJS_Return result =
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pObj->QueryProperty(PropFromV8Prop(info.GetIsolate(), property).c_str());
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info.GetReturnValue().Set(!result.HasError() ? 4 : 0);
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}
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template <class Alt>
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void JSSpecialPropGet(const char* class_name,
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v8::Local<v8::String> property,
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const v8::PropertyCallbackInfo<v8::Value>& info) {
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CJS_Runtime* pRuntime =
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CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
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if (!pRuntime)
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return;
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CJS_Object* pJSObj =
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static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
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if (!pJSObj)
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return;
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Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
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CJS_Return result = pObj->GetProperty(
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pRuntime, PropFromV8Prop(info.GetIsolate(), property).c_str());
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if (result.HasError()) {
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pRuntime->Error(
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JSFormatErrorString(class_name, "GetProperty", result.Error()));
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return;
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}
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if (result.HasReturn())
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info.GetReturnValue().Set(result.Return());
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}
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template <class Alt>
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void JSSpecialPropPut(const char* class_name,
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v8::Local<v8::String> property,
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v8::Local<v8::Value> value,
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const v8::PropertyCallbackInfo<v8::Value>& info) {
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CJS_Runtime* pRuntime =
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CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
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if (!pRuntime)
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return;
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CJS_Object* pJSObj =
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static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
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if (!pJSObj)
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return;
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Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
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CJS_Return result = pObj->SetProperty(
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pRuntime, PropFromV8Prop(info.GetIsolate(), property).c_str(), value);
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if (result.HasError()) {
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pRuntime->Error(
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JSFormatErrorString(class_name, "PutProperty", result.Error()));
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}
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}
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template <class Alt>
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void JSSpecialPropDel(const char* class_name,
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v8::Local<v8::String> property,
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const v8::PropertyCallbackInfo<v8::Boolean>& info) {
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CJS_Runtime* pRuntime =
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CJS_Runtime::CurrentRuntimeFromIsolate(info.GetIsolate());
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if (!pRuntime)
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return;
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CJS_Object* pJSObj =
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static_cast<CJS_Object*>(pRuntime->GetObjectPrivate(info.Holder()));
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if (!pJSObj)
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return;
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Alt* pObj = reinterpret_cast<Alt*>(pJSObj->GetEmbedObject());
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CJS_Return result = pObj->DelProperty(
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pRuntime, PropFromV8Prop(info.GetIsolate(), property).c_str());
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if (result.HasError()) {
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// TODO(dsinclair): Should this set the pRuntime->Error result?
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// ByteString cbName =
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// ByteString::Format("%s.%s", class_name, "DelProperty");
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}
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}
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struct JSGlobalData {
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JSGlobalData();
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~JSGlobalData();
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JS_GlobalDataType nType;
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double dData;
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bool bData;
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ByteString sData;
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v8::Global<v8::Object> pData;
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bool bPersistent;
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bool bDeleted;
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};
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class JSGlobalAlternate : public CJS_EmbedObj {
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public:
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explicit JSGlobalAlternate(CJS_Object* pJSObject);
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~JSGlobalAlternate() override;
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CJS_Return setPersistent(CJS_Runtime* pRuntime,
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const std::vector<v8::Local<v8::Value>>& params);
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CJS_Return QueryProperty(const wchar_t* propname);
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CJS_Return GetProperty(CJS_Runtime* pRuntime, const wchar_t* propname);
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CJS_Return SetProperty(CJS_Runtime* pRuntime,
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const wchar_t* propname,
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v8::Local<v8::Value> vp);
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CJS_Return DelProperty(CJS_Runtime* pRuntime, const wchar_t* propname);
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void Initial(CPDFSDK_FormFillEnvironment* pFormFillEnv);
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private:
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void UpdateGlobalPersistentVariables();
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void CommitGlobalPersisitentVariables(CJS_Runtime* pRuntime);
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void DestroyGlobalPersisitentVariables();
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CJS_Return SetGlobalVariables(const ByteString& propname,
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JS_GlobalDataType nType,
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double dData,
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bool bData,
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const ByteString& sData,
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v8::Local<v8::Object> pData,
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bool bDefaultPersistent);
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void ObjectToArray(CJS_Runtime* pRuntime,
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v8::Local<v8::Object> pObj,
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CJS_GlobalVariableArray& array);
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void PutObjectProperty(v8::Local<v8::Object> obj, CJS_KeyValue* pData);
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std::map<ByteString, std::unique_ptr<JSGlobalData>> m_MapGlobal;
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WideString m_sFilePath;
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CJS_GlobalData* m_pGlobalData;
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CPDFSDK_FormFillEnvironment::ObservedPtr m_pFormFillEnv;
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};
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} // namespace
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const JSMethodSpec CJS_Global::MethodSpecs[] = {
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{"setPersistent", setPersistent_static}};
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int CJS_Global::ObjDefnID = -1;
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// static
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void CJS_Global::setPersistent_static(
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const v8::FunctionCallbackInfo<v8::Value>& info) {
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JSMethod<JSGlobalAlternate, &JSGlobalAlternate::setPersistent>(
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"setPersistent", "global", info);
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}
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// static
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void CJS_Global::queryprop_static(
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v8::Local<v8::String> property,
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const v8::PropertyCallbackInfo<v8::Integer>& info) {
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JSSpecialPropQuery<JSGlobalAlternate>("global", property, info);
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}
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// static
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void CJS_Global::getprop_static(
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v8::Local<v8::String> property,
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const v8::PropertyCallbackInfo<v8::Value>& info) {
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JSSpecialPropGet<JSGlobalAlternate>("global", property, info);
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}
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// static
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void CJS_Global::putprop_static(
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v8::Local<v8::String> property,
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v8::Local<v8::Value> value,
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const v8::PropertyCallbackInfo<v8::Value>& info) {
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JSSpecialPropPut<JSGlobalAlternate>("global", property, value, info);
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}
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// static
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void CJS_Global::delprop_static(
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v8::Local<v8::String> property,
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const v8::PropertyCallbackInfo<v8::Boolean>& info) {
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JSSpecialPropDel<JSGlobalAlternate>("global", property, info);
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}
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// static
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void CJS_Global::DefineAllProperties(CFXJS_Engine* pEngine) {
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pEngine->DefineObjAllProperties(
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ObjDefnID, CJS_Global::queryprop_static, CJS_Global::getprop_static,
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CJS_Global::putprop_static, CJS_Global::delprop_static);
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}
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// static
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void CJS_Global::DefineJSObjects(CFXJS_Engine* pEngine) {
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ObjDefnID = pEngine->DefineObj("global", FXJSOBJTYPE_STATIC,
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JSConstructor<CJS_Global, JSGlobalAlternate>,
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JSDestructor<CJS_Global>);
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DefineMethods(pEngine, ObjDefnID, MethodSpecs, FX_ArraySize(MethodSpecs));
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DefineAllProperties(pEngine);
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}
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void CJS_Global::InitInstance(IJS_Runtime* pIRuntime) {
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CJS_Runtime* pRuntime = static_cast<CJS_Runtime*>(pIRuntime);
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JSGlobalAlternate* pGlobal =
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static_cast<JSGlobalAlternate*>(GetEmbedObject());
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pGlobal->Initial(pRuntime->GetFormFillEnv());
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}
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JSGlobalData::JSGlobalData()
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: nType(JS_GlobalDataType::NUMBER),
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dData(0),
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bData(false),
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sData(""),
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bPersistent(false),
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bDeleted(false) {}
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JSGlobalData::~JSGlobalData() {
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pData.Reset();
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}
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JSGlobalAlternate::JSGlobalAlternate(CJS_Object* pJSObject)
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: CJS_EmbedObj(pJSObject), m_pFormFillEnv(nullptr) {}
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JSGlobalAlternate::~JSGlobalAlternate() {
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DestroyGlobalPersisitentVariables();
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m_pGlobalData->Release();
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}
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void JSGlobalAlternate::Initial(CPDFSDK_FormFillEnvironment* pFormFillEnv) {
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m_pFormFillEnv.Reset(pFormFillEnv);
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m_pGlobalData = CJS_GlobalData::GetRetainedInstance(pFormFillEnv);
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UpdateGlobalPersistentVariables();
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}
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CJS_Return JSGlobalAlternate::QueryProperty(const wchar_t* propname) {
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return CJS_Return(WideString(propname) != L"setPersistent");
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}
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CJS_Return JSGlobalAlternate::DelProperty(CJS_Runtime* pRuntime,
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const wchar_t* propname) {
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auto it = m_MapGlobal.find(ByteString::FromUnicode(propname));
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if (it == m_MapGlobal.end())
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return CJS_Return(false);
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it->second->bDeleted = true;
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return CJS_Return(true);
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}
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CJS_Return JSGlobalAlternate::GetProperty(CJS_Runtime* pRuntime,
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const wchar_t* propname) {
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auto it = m_MapGlobal.find(ByteString::FromUnicode(propname));
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if (it == m_MapGlobal.end())
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return CJS_Return(true);
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JSGlobalData* pData = it->second.get();
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if (pData->bDeleted)
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return CJS_Return(true);
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switch (pData->nType) {
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case JS_GlobalDataType::NUMBER:
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return CJS_Return(pRuntime->NewNumber(pData->dData));
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case JS_GlobalDataType::BOOLEAN:
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return CJS_Return(pRuntime->NewBoolean(pData->bData));
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case JS_GlobalDataType::STRING:
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return CJS_Return(pRuntime->NewString(
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WideString::FromLocal(pData->sData.c_str()).c_str()));
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case JS_GlobalDataType::OBJECT:
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return CJS_Return(
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v8::Local<v8::Object>::New(pRuntime->GetIsolate(), pData->pData));
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case JS_GlobalDataType::NULLOBJ:
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return CJS_Return(pRuntime->NewNull());
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default:
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break;
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}
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return CJS_Return(false);
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}
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CJS_Return JSGlobalAlternate::SetProperty(CJS_Runtime* pRuntime,
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const wchar_t* propname,
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v8::Local<v8::Value> vp) {
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ByteString sPropName = ByteString::FromUnicode(propname);
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if (vp->IsNumber()) {
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return SetGlobalVariables(sPropName, JS_GlobalDataType::NUMBER,
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pRuntime->ToDouble(vp), false, "",
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v8::Local<v8::Object>(), false);
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}
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if (vp->IsBoolean()) {
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return SetGlobalVariables(sPropName, JS_GlobalDataType::BOOLEAN, 0,
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pRuntime->ToBoolean(vp), "",
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v8::Local<v8::Object>(), false);
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}
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if (vp->IsString()) {
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return SetGlobalVariables(
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sPropName, JS_GlobalDataType::STRING, 0, false,
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ByteString::FromUnicode(pRuntime->ToWideString(vp)),
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v8::Local<v8::Object>(), false);
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}
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if (vp->IsObject()) {
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return SetGlobalVariables(sPropName, JS_GlobalDataType::OBJECT, 0, false,
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"", pRuntime->ToObject(vp), false);
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}
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if (vp->IsNull()) {
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return SetGlobalVariables(sPropName, JS_GlobalDataType::NULLOBJ, 0, false,
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"", v8::Local<v8::Object>(), false);
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}
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if (vp->IsUndefined()) {
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DelProperty(pRuntime, propname);
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return CJS_Return(true);
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}
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return CJS_Return(false);
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}
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CJS_Return JSGlobalAlternate::setPersistent(
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CJS_Runtime* pRuntime,
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const std::vector<v8::Local<v8::Value>>& params) {
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if (params.size() != 2)
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return CJS_Return(JSGetStringFromID(JSMessage::kParamError));
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auto it = m_MapGlobal.find(
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ByteString::FromUnicode(pRuntime->ToWideString(params[0])));
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if (it == m_MapGlobal.end() || it->second->bDeleted)
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return CJS_Return(JSGetStringFromID(JSMessage::kGlobalNotFoundError));
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it->second->bPersistent = pRuntime->ToBoolean(params[1]);
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return CJS_Return(true);
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}
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void JSGlobalAlternate::UpdateGlobalPersistentVariables() {
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CJS_Runtime* pRuntime =
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static_cast<CJS_Runtime*>(CFXJS_Engine::CurrentEngineFromIsolate(
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m_pJSObject->ToV8Object()->GetIsolate()));
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for (int i = 0, sz = m_pGlobalData->GetSize(); i < sz; i++) {
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CJS_GlobalData_Element* pData = m_pGlobalData->GetAt(i);
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switch (pData->data.nType) {
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case JS_GlobalDataType::NUMBER:
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SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::NUMBER,
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pData->data.dData, false, "",
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v8::Local<v8::Object>(), pData->bPersistent == 1);
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pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(),
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pData->data.sKey.UTF8Decode(),
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pRuntime->NewNumber(pData->data.dData));
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break;
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case JS_GlobalDataType::BOOLEAN:
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SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::BOOLEAN, 0,
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pData->data.bData == 1, "", v8::Local<v8::Object>(),
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pData->bPersistent == 1);
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pRuntime->PutObjectProperty(
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m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(),
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pRuntime->NewBoolean(pData->data.bData == 1));
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break;
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case JS_GlobalDataType::STRING:
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SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::STRING, 0,
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false, pData->data.sData, v8::Local<v8::Object>(),
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pData->bPersistent == 1);
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pRuntime->PutObjectProperty(
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m_pJSObject->ToV8Object(), pData->data.sKey.UTF8Decode(),
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pRuntime->NewString(pData->data.sData.UTF8Decode().AsStringView()));
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break;
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case JS_GlobalDataType::OBJECT: {
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v8::Local<v8::Object> pObj = pRuntime->NewFxDynamicObj(-1);
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if (!pObj.IsEmpty()) {
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PutObjectProperty(pObj, &pData->data);
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SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::OBJECT, 0,
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false, "", pObj, pData->bPersistent == 1);
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pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(),
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pData->data.sKey.UTF8Decode(), pObj);
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}
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} break;
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case JS_GlobalDataType::NULLOBJ:
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SetGlobalVariables(pData->data.sKey, JS_GlobalDataType::NULLOBJ, 0,
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false, "", v8::Local<v8::Object>(),
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pData->bPersistent == 1);
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pRuntime->PutObjectProperty(m_pJSObject->ToV8Object(),
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pData->data.sKey.UTF8Decode(),
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pRuntime->NewNull());
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break;
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}
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}
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}
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void JSGlobalAlternate::CommitGlobalPersisitentVariables(
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CJS_Runtime* pRuntime) {
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for (const auto& iter : m_MapGlobal) {
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ByteString name = iter.first;
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JSGlobalData* pData = iter.second.get();
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if (pData->bDeleted) {
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m_pGlobalData->DeleteGlobalVariable(name);
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continue;
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}
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switch (pData->nType) {
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case JS_GlobalDataType::NUMBER:
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m_pGlobalData->SetGlobalVariableNumber(name, pData->dData);
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m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent);
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break;
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case JS_GlobalDataType::BOOLEAN:
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m_pGlobalData->SetGlobalVariableBoolean(name, pData->bData);
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m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent);
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break;
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case JS_GlobalDataType::STRING:
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m_pGlobalData->SetGlobalVariableString(name, pData->sData);
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m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent);
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break;
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case JS_GlobalDataType::OBJECT: {
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CJS_GlobalVariableArray array;
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v8::Local<v8::Object> obj = v8::Local<v8::Object>::New(
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GetJSObject()->GetIsolate(), pData->pData);
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ObjectToArray(pRuntime, obj, array);
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m_pGlobalData->SetGlobalVariableObject(name, array);
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m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent);
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} break;
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case JS_GlobalDataType::NULLOBJ:
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m_pGlobalData->SetGlobalVariableNull(name);
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m_pGlobalData->SetGlobalVariablePersistent(name, pData->bPersistent);
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break;
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}
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}
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}
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void JSGlobalAlternate::ObjectToArray(CJS_Runtime* pRuntime,
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v8::Local<v8::Object> pObj,
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CJS_GlobalVariableArray& array) {
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std::vector<WideString> pKeyList = pRuntime->GetObjectPropertyNames(pObj);
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for (const auto& ws : pKeyList) {
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ByteString sKey = ws.UTF8Encode();
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v8::Local<v8::Value> v = pRuntime->GetObjectProperty(pObj, ws);
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if (v->IsNumber()) {
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CJS_KeyValue* pObjElement = new CJS_KeyValue;
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pObjElement->nType = JS_GlobalDataType::NUMBER;
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pObjElement->sKey = sKey;
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pObjElement->dData = pRuntime->ToDouble(v);
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array.Add(pObjElement);
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continue;
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}
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if (v->IsBoolean()) {
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CJS_KeyValue* pObjElement = new CJS_KeyValue;
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pObjElement->nType = JS_GlobalDataType::BOOLEAN;
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pObjElement->sKey = sKey;
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pObjElement->dData = pRuntime->ToBoolean(v);
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array.Add(pObjElement);
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continue;
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}
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if (v->IsString()) {
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ByteString sValue = ByteString::FromUnicode(pRuntime->ToWideString(v));
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CJS_KeyValue* pObjElement = new CJS_KeyValue;
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pObjElement->nType = JS_GlobalDataType::STRING;
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pObjElement->sKey = sKey;
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pObjElement->sData = sValue;
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array.Add(pObjElement);
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continue;
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}
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if (v->IsObject()) {
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CJS_KeyValue* pObjElement = new CJS_KeyValue;
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pObjElement->nType = JS_GlobalDataType::OBJECT;
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pObjElement->sKey = sKey;
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ObjectToArray(pRuntime, pRuntime->ToObject(v), pObjElement->objData);
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array.Add(pObjElement);
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continue;
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}
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if (v->IsNull()) {
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CJS_KeyValue* pObjElement = new CJS_KeyValue;
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pObjElement->nType = JS_GlobalDataType::NULLOBJ;
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pObjElement->sKey = sKey;
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array.Add(pObjElement);
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}
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}
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}
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void JSGlobalAlternate::PutObjectProperty(v8::Local<v8::Object> pObj,
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CJS_KeyValue* pData) {
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CJS_Runtime* pRuntime = CJS_Runtime::CurrentRuntimeFromIsolate(
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m_pJSObject->ToV8Object()->GetIsolate());
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for (int i = 0, sz = pData->objData.Count(); i < sz; i++) {
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CJS_KeyValue* pObjData = pData->objData.GetAt(i);
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switch (pObjData->nType) {
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case JS_GlobalDataType::NUMBER:
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pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(),
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pRuntime->NewNumber(pObjData->dData));
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break;
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case JS_GlobalDataType::BOOLEAN:
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pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(),
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pRuntime->NewBoolean(pObjData->bData == 1));
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break;
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case JS_GlobalDataType::STRING:
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pRuntime->PutObjectProperty(
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pObj, pObjData->sKey.UTF8Decode(),
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pRuntime->NewString(pObjData->sData.UTF8Decode().AsStringView()));
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break;
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case JS_GlobalDataType::OBJECT: {
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v8::Local<v8::Object> pNewObj = pRuntime->NewFxDynamicObj(-1);
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if (!pNewObj.IsEmpty()) {
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PutObjectProperty(pNewObj, pObjData);
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pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(),
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pNewObj);
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}
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} break;
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case JS_GlobalDataType::NULLOBJ:
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pRuntime->PutObjectProperty(pObj, pObjData->sKey.UTF8Decode(),
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pRuntime->NewNull());
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break;
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}
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}
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}
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void JSGlobalAlternate::DestroyGlobalPersisitentVariables() {
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m_MapGlobal.clear();
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}
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CJS_Return JSGlobalAlternate::SetGlobalVariables(const ByteString& propname,
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JS_GlobalDataType nType,
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double dData,
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bool bData,
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const ByteString& sData,
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v8::Local<v8::Object> pData,
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bool bDefaultPersistent) {
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if (propname.IsEmpty())
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return CJS_Return(false);
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auto it = m_MapGlobal.find(propname);
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if (it != m_MapGlobal.end()) {
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JSGlobalData* pTemp = it->second.get();
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if (pTemp->bDeleted || pTemp->nType != nType) {
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pTemp->dData = 0;
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pTemp->bData = 0;
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pTemp->sData.clear();
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pTemp->nType = nType;
|
}
|
pTemp->bDeleted = false;
|
switch (nType) {
|
case JS_GlobalDataType::NUMBER:
|
pTemp->dData = dData;
|
break;
|
case JS_GlobalDataType::BOOLEAN:
|
pTemp->bData = bData;
|
break;
|
case JS_GlobalDataType::STRING:
|
pTemp->sData = sData;
|
break;
|
case JS_GlobalDataType::OBJECT:
|
pTemp->pData.Reset(pData->GetIsolate(), pData);
|
break;
|
case JS_GlobalDataType::NULLOBJ:
|
break;
|
default:
|
return CJS_Return(false);
|
}
|
return CJS_Return(true);
|
}
|
|
auto pNewData = pdfium::MakeUnique<JSGlobalData>();
|
switch (nType) {
|
case JS_GlobalDataType::NUMBER:
|
pNewData->nType = JS_GlobalDataType::NUMBER;
|
pNewData->dData = dData;
|
pNewData->bPersistent = bDefaultPersistent;
|
break;
|
case JS_GlobalDataType::BOOLEAN:
|
pNewData->nType = JS_GlobalDataType::BOOLEAN;
|
pNewData->bData = bData;
|
pNewData->bPersistent = bDefaultPersistent;
|
break;
|
case JS_GlobalDataType::STRING:
|
pNewData->nType = JS_GlobalDataType::STRING;
|
pNewData->sData = sData;
|
pNewData->bPersistent = bDefaultPersistent;
|
break;
|
case JS_GlobalDataType::OBJECT:
|
pNewData->nType = JS_GlobalDataType::OBJECT;
|
pNewData->pData.Reset(pData->GetIsolate(), pData);
|
pNewData->bPersistent = bDefaultPersistent;
|
break;
|
case JS_GlobalDataType::NULLOBJ:
|
pNewData->nType = JS_GlobalDataType::NULLOBJ;
|
pNewData->bPersistent = bDefaultPersistent;
|
break;
|
default:
|
return CJS_Return(false);
|
}
|
m_MapGlobal[propname] = std::move(pNewData);
|
return CJS_Return(true);
|
}
|