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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "fxjs/xfa/cfxjse_engine.h"
#include <utility>
#include "core/fxcrt/autorestorer.h"
#include "core/fxcrt/cfx_widetextbuf.h"
#include "core/fxcrt/fx_extension.h"
#include "fxjs/cjs_runtime.h"
#include "fxjs/xfa/cfxjse_class.h"
#include "fxjs/xfa/cfxjse_context.h"
#include "fxjs/xfa/cfxjse_formcalc_context.h"
#include "fxjs/xfa/cfxjse_resolveprocessor.h"
#include "fxjs/xfa/cfxjse_value.h"
#include "fxjs/xfa/cjx_object.h"
#include "third_party/base/ptr_util.h"
#include "third_party/base/stl_util.h"
#include "xfa/fxfa/cxfa_eventparam.h"
#include "xfa/fxfa/cxfa_ffdoc.h"
#include "xfa/fxfa/cxfa_ffnotify.h"
#include "xfa/fxfa/parser/cxfa_document.h"
#include "xfa/fxfa/parser/cxfa_localemgr.h"
#include "xfa/fxfa/parser/cxfa_node.h"
#include "xfa/fxfa/parser/cxfa_nodehelper.h"
#include "xfa/fxfa/parser/cxfa_object.h"
#include "xfa/fxfa/parser/cxfa_thisproxy.h"
#include "xfa/fxfa/parser/cxfa_treelist.h"
#include "xfa/fxfa/parser/xfa_basic_data.h"
#include "xfa/fxfa/parser/xfa_resolvenode_rs.h"
#include "xfa/fxfa/parser/xfa_utils.h"
using pdfium::fxjse::kClassTag;
const FXJSE_CLASS_DESCRIPTOR GlobalClassDescriptor = {
kClassTag, // tag
"Root", // name
nullptr, // methods
0, // method count
CFXJSE_Engine::GlobalPropTypeGetter,
CFXJSE_Engine::GlobalPropertyGetter,
CFXJSE_Engine::GlobalPropertySetter,
CFXJSE_Engine::NormalMethodCall,
};
const FXJSE_CLASS_DESCRIPTOR NormalClassDescriptor = {
kClassTag, // tag
"XFAObject", // name
nullptr, // methods
0, // method count
CFXJSE_Engine::NormalPropTypeGetter,
CFXJSE_Engine::NormalPropertyGetter,
CFXJSE_Engine::NormalPropertySetter,
CFXJSE_Engine::NormalMethodCall,
};
const FXJSE_CLASS_DESCRIPTOR VariablesClassDescriptor = {
kClassTag, // tag
"XFAScriptObject", // name
nullptr, // methods
0, // method count
CFXJSE_Engine::NormalPropTypeGetter,
CFXJSE_Engine::GlobalPropertyGetter,
CFXJSE_Engine::GlobalPropertySetter,
CFXJSE_Engine::NormalMethodCall,
};
namespace {
const char kFormCalcRuntime[] = "pfm_rt";
CXFA_ThisProxy* ToThisProxy(CFXJSE_Value* pValue) {
CFXJSE_HostObject* pHostObject = pValue->ToHostObject();
return pHostObject ? ToThisProxy(pHostObject->AsCXFAObject()) : nullptr;
}
} // namespace
// static
CXFA_Object* CFXJSE_Engine::ToObject(
const v8::FunctionCallbackInfo<v8::Value>& info) {
if (!info.Holder()->IsObject())
return nullptr;
CFXJSE_HostObject* pHostObj =
FXJSE_RetrieveObjectBinding(info.Holder().As<v8::Object>());
return pHostObj ? pHostObj->AsCXFAObject() : nullptr;
}
// static.
CXFA_Object* CFXJSE_Engine::ToObject(CFXJSE_Value* pValue) {
CFXJSE_HostObject* pHostObj = pValue->ToHostObject();
return pHostObj ? pHostObj->AsCXFAObject() : nullptr;
}
CFXJSE_Engine::CFXJSE_Engine(CXFA_Document* pDocument,
CJS_Runtime* fxjs_runtime)
: CFX_V8(fxjs_runtime->GetIsolate()),
m_pSubordinateRuntime(fxjs_runtime),
m_pDocument(pDocument),
m_JsContext(CFXJSE_Context::Create(fxjs_runtime->GetIsolate(),
&GlobalClassDescriptor,
pDocument->GetRoot())),
m_ResolveProcessor(pdfium::MakeUnique<CFXJSE_ResolveProcessor>()) {
RemoveBuiltInObjs(m_JsContext.get());
m_JsContext->EnableCompatibleMode();
// Don't know if this can happen before we remove the builtin objs and set
// compatibility mode.
m_pJsClass =
CFXJSE_Class::Create(m_JsContext.get(), &NormalClassDescriptor, false);
}
CFXJSE_Engine::~CFXJSE_Engine() {
for (const auto& pair : m_mapVariableToContext)
delete ToThisProxy(pair.second->GetGlobalObject().get());
}
bool CFXJSE_Engine::RunScript(CXFA_Script::Type eScriptType,
WideStringView wsScript,
CFXJSE_Value* hRetValue,
CXFA_Object* pThisObject) {
ByteString btScript;
AutoRestorer<CXFA_Script::Type> typeRestorer(&m_eScriptType);
m_eScriptType = eScriptType;
if (eScriptType == CXFA_Script::Type::Formcalc) {
if (!m_FM2JSContext) {
m_FM2JSContext = pdfium::MakeUnique<CFXJSE_FormCalcContext>(
GetIsolate(), m_JsContext.get(), m_pDocument.Get());
}
CFX_WideTextBuf wsJavaScript;
if (!CFXJSE_FormCalcContext::Translate(wsScript, &wsJavaScript)) {
hRetValue->SetUndefined();
return false;
}
btScript = FX_UTF8Encode(wsJavaScript.AsStringView());
} else {
btScript = FX_UTF8Encode(wsScript);
}
AutoRestorer<UnownedPtr<CXFA_Object>> nodeRestorer(&m_pThisObject);
m_pThisObject = pThisObject;
CFXJSE_Value* pValue = pThisObject ? GetJSValueFromMap(pThisObject) : nullptr;
IJS_Runtime::ScopedEventContext ctx(m_pSubordinateRuntime.Get());
return m_JsContext->ExecuteScript(btScript.c_str(), hRetValue, pValue);
}
bool CFXJSE_Engine::QueryNodeByFlag(CXFA_Node* refNode,
WideStringView propname,
CFXJSE_Value* pValue,
uint32_t dwFlag,
bool bSetting) {
if (!refNode)
return false;
XFA_RESOLVENODE_RS resolveRs;
if (!ResolveObjects(refNode, propname, &resolveRs, dwFlag, nullptr))
return false;
if (resolveRs.dwFlags == XFA_ResolveNode_RSType_Nodes) {
pValue->Assign(GetJSValueFromMap(resolveRs.objects.front().Get()));
return true;
}
if (resolveRs.dwFlags == XFA_ResolveNode_RSType_Attribute &&
resolveRs.script_attribute.callback) {
CJX_Object* jsObject = resolveRs.objects.front()->JSObject();
(*resolveRs.script_attribute.callback)(
jsObject, pValue, bSetting, resolveRs.script_attribute.attribute);
}
return true;
}
// static
void CFXJSE_Engine::GlobalPropertySetter(CFXJSE_Value* pObject,
ByteStringView szPropName,
CFXJSE_Value* pValue) {
CXFA_Object* lpOrginalNode = ToObject(pObject);
CXFA_Document* pDoc = lpOrginalNode->GetDocument();
CFXJSE_Engine* lpScriptContext = pDoc->GetScriptContext();
CXFA_Node* pRefNode = ToNode(lpScriptContext->GetThisObject());
if (lpOrginalNode->IsThisProxy())
pRefNode = ToNode(lpScriptContext->GetVariablesThis(lpOrginalNode, false));
WideString wsPropName = WideString::FromUTF8(szPropName);
if (lpScriptContext->QueryNodeByFlag(
pRefNode, wsPropName.AsStringView(), pValue,
XFA_RESOLVENODE_Parent | XFA_RESOLVENODE_Siblings |
XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Properties |
XFA_RESOLVENODE_Attributes,
true)) {
return;
}
if (lpOrginalNode->IsThisProxy()) {
if (pValue && pValue->IsUndefined()) {
pObject->DeleteObjectProperty(szPropName);
return;
}
}
CXFA_FFNotify* pNotify = pDoc->GetNotify();
if (!pNotify)
return;
CXFA_FFDoc* hDoc = pNotify->GetHDOC();
hDoc->GetDocEnvironment()->SetPropertyInNonXFAGlobalObject(hDoc, szPropName,
pValue);
}
// static
void CFXJSE_Engine::GlobalPropertyGetter(CFXJSE_Value* pObject,
ByteStringView szPropName,
CFXJSE_Value* pValue) {
CXFA_Object* pOriginalObject = ToObject(pObject);
CXFA_Document* pDoc = pOriginalObject->GetDocument();
CFXJSE_Engine* lpScriptContext = pDoc->GetScriptContext();
WideString wsPropName = WideString::FromUTF8(szPropName);
if (lpScriptContext->GetType() == CXFA_Script::Type::Formcalc) {
if (szPropName == kFormCalcRuntime) {
lpScriptContext->m_FM2JSContext->GlobalPropertyGetter(pValue);
return;
}
XFA_HashCode uHashCode = static_cast<XFA_HashCode>(
FX_HashCode_GetW(wsPropName.AsStringView(), false));
if (uHashCode != XFA_HASHCODE_Layout) {
CXFA_Object* pObj =
lpScriptContext->GetDocument()->GetXFAObject(uHashCode);
if (pObj) {
pValue->Assign(lpScriptContext->GetJSValueFromMap(pObj));
return;
}
}
}
CXFA_Node* pRefNode = ToNode(lpScriptContext->GetThisObject());
if (pOriginalObject->IsThisProxy()) {
pRefNode =
ToNode(lpScriptContext->GetVariablesThis(pOriginalObject, false));
}
if (lpScriptContext->QueryNodeByFlag(
pRefNode, wsPropName.AsStringView(), pValue,
XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Properties |
XFA_RESOLVENODE_Attributes,
false)) {
return;
}
if (lpScriptContext->QueryNodeByFlag(
pRefNode, wsPropName.AsStringView(), pValue,
XFA_RESOLVENODE_Parent | XFA_RESOLVENODE_Siblings, false)) {
return;
}
CXFA_Object* pScriptObject =
lpScriptContext->GetVariablesThis(pOriginalObject, true);
if (pScriptObject && lpScriptContext->QueryVariableValue(
pScriptObject->AsNode(), szPropName, pValue, true)) {
return;
}
CXFA_FFNotify* pNotify = pDoc->GetNotify();
if (!pNotify)
return;
CXFA_FFDoc* hDoc = pNotify->GetHDOC();
hDoc->GetDocEnvironment()->GetPropertyFromNonXFAGlobalObject(hDoc, szPropName,
pValue);
}
int32_t CFXJSE_Engine::GlobalPropTypeGetter(CFXJSE_Value* pOriginalValue,
ByteStringView szPropName,
bool bQueryIn) {
CXFA_Object* pObject = ToObject(pOriginalValue);
if (!pObject)
return FXJSE_ClassPropType_None;
CFXJSE_Engine* lpScriptContext = pObject->GetDocument()->GetScriptContext();
pObject = lpScriptContext->GetVariablesThis(pObject, false);
WideString wsPropName = WideString::FromUTF8(szPropName);
if (pObject->JSObject()->HasMethod(wsPropName))
return FXJSE_ClassPropType_Method;
return FXJSE_ClassPropType_Property;
}
// static
void CFXJSE_Engine::NormalPropertyGetter(CFXJSE_Value* pOriginalValue,
ByteStringView szPropName,
CFXJSE_Value* pReturnValue) {
CXFA_Object* pOriginalObject = ToObject(pOriginalValue);
if (!pOriginalObject) {
pReturnValue->SetUndefined();
return;
}
WideString wsPropName = WideString::FromUTF8(szPropName);
CFXJSE_Engine* lpScriptContext =
pOriginalObject->GetDocument()->GetScriptContext();
CXFA_Object* pObject =
lpScriptContext->GetVariablesThis(pOriginalObject, false);
if (wsPropName.EqualsASCII("xfa")) {
CFXJSE_Value* pValue = lpScriptContext->GetJSValueFromMap(
lpScriptContext->GetDocument()->GetRoot());
pReturnValue->Assign(pValue);
return;
}
bool bRet = lpScriptContext->QueryNodeByFlag(
ToNode(pObject), wsPropName.AsStringView(), pReturnValue,
XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Properties |
XFA_RESOLVENODE_Attributes,
false);
if (bRet)
return;
if (pObject == lpScriptContext->GetThisObject() ||
(lpScriptContext->GetType() == CXFA_Script::Type::Javascript &&
!lpScriptContext->IsStrictScopeInJavaScript())) {
bRet = lpScriptContext->QueryNodeByFlag(
ToNode(pObject), wsPropName.AsStringView(), pReturnValue,
XFA_RESOLVENODE_Parent | XFA_RESOLVENODE_Siblings, false);
}
if (bRet)
return;
CXFA_Object* pScriptObject =
lpScriptContext->GetVariablesThis(pOriginalObject, true);
if (pScriptObject) {
bRet = lpScriptContext->QueryVariableValue(ToNode(pScriptObject),
szPropName, pReturnValue, true);
if (!bRet) {
Optional<XFA_SCRIPTATTRIBUTEINFO> info = XFA_GetScriptAttributeByName(
pObject->GetElementType(), wsPropName.AsStringView());
if (info.has_value()) {
CJX_Object* jsObject = pObject->JSObject();
(*info.value().callback)(jsObject, pReturnValue, false,
info.value().attribute);
return;
}
}
CXFA_FFNotify* pNotify = pObject->GetDocument()->GetNotify();
if (!pNotify) {
pReturnValue->SetUndefined();
return;
}
CXFA_FFDoc* hDoc = pNotify->GetHDOC();
if (hDoc->GetDocEnvironment()->GetPropertyFromNonXFAGlobalObject(
hDoc, szPropName, pReturnValue)) {
return;
}
}
if (!bRet)
pReturnValue->SetUndefined();
}
// static
void CFXJSE_Engine::NormalPropertySetter(CFXJSE_Value* pOriginalValue,
ByteStringView szPropName,
CFXJSE_Value* pReturnValue) {
CXFA_Object* pOriginalObject = ToObject(pOriginalValue);
if (!pOriginalObject)
return;
CFXJSE_Engine* lpScriptContext =
pOriginalObject->GetDocument()->GetScriptContext();
CXFA_Object* pObject =
lpScriptContext->GetVariablesThis(pOriginalObject, false);
WideString wsPropName = WideString::FromUTF8(szPropName);
WideStringView wsPropNameView = wsPropName.AsStringView();
Optional<XFA_SCRIPTATTRIBUTEINFO> info =
XFA_GetScriptAttributeByName(pObject->GetElementType(), wsPropNameView);
if (info.has_value()) {
CJX_Object* jsObject = pObject->JSObject();
(*info.value().callback)(jsObject, pReturnValue, true,
info.value().attribute);
return;
}
if (pObject->IsNode()) {
if (wsPropNameView[0] == '#')
wsPropNameView = wsPropNameView.Right(wsPropNameView.GetLength() - 1);
CXFA_Node* pNode = ToNode(pObject);
CXFA_Node* pPropOrChild = nullptr;
XFA_Element eType = XFA_GetElementByName(wsPropNameView);
if (eType != XFA_Element::Unknown) {
pPropOrChild =
pNode->JSObject()->GetOrCreateProperty<CXFA_Node>(0, eType);
} else {
pPropOrChild = pNode->GetFirstChildByName(wsPropNameView);
}
if (pPropOrChild) {
info = XFA_GetScriptAttributeByName(pPropOrChild->GetElementType(),
L"{default}");
if (info.has_value()) {
pPropOrChild->JSObject()->ScriptSomDefaultValue(pReturnValue, true,
XFA_Attribute::Unknown);
return;
}
}
}
CXFA_Object* pScriptObject =
lpScriptContext->GetVariablesThis(pOriginalObject, true);
if (pScriptObject) {
lpScriptContext->QueryVariableValue(ToNode(pScriptObject), szPropName,
pReturnValue, false);
}
}
int32_t CFXJSE_Engine::NormalPropTypeGetter(CFXJSE_Value* pOriginalValue,
ByteStringView szPropName,
bool bQueryIn) {
CXFA_Object* pObject = ToObject(pOriginalValue);
if (!pObject)
return FXJSE_ClassPropType_None;
CFXJSE_Engine* lpScriptContext = pObject->GetDocument()->GetScriptContext();
pObject = lpScriptContext->GetVariablesThis(pObject, false);
XFA_Element eType = pObject->GetElementType();
WideString wsPropName = WideString::FromUTF8(szPropName);
if (pObject->JSObject()->HasMethod(wsPropName))
return FXJSE_ClassPropType_Method;
if (bQueryIn &&
!XFA_GetScriptAttributeByName(eType, wsPropName.AsStringView())) {
return FXJSE_ClassPropType_None;
}
return FXJSE_ClassPropType_Property;
}
CJS_Result CFXJSE_Engine::NormalMethodCall(
const v8::FunctionCallbackInfo<v8::Value>& info,
const WideString& functionName) {
CXFA_Object* pObject = ToObject(info);
if (!pObject)
return CJS_Result::Failure(L"no Holder() present.");
CFXJSE_Engine* lpScriptContext = pObject->GetDocument()->GetScriptContext();
pObject = lpScriptContext->GetVariablesThis(pObject, false);
std::vector<v8::Local<v8::Value>> parameters;
for (int i = 0; i < info.Length(); i++)
parameters.push_back(info[i]);
return pObject->JSObject()->RunMethod(functionName, parameters);
}
bool CFXJSE_Engine::IsStrictScopeInJavaScript() {
return m_pDocument->HasFlag(XFA_DOCFLAG_StrictScoping);
}
CXFA_Script::Type CFXJSE_Engine::GetType() {
return m_eScriptType;
}
CFXJSE_Context* CFXJSE_Engine::CreateVariablesContext(CXFA_Node* pScriptNode,
CXFA_Node* pSubform) {
if (!pScriptNode || !pSubform)
return nullptr;
auto pNewContext =
CFXJSE_Context::Create(GetIsolate(), &VariablesClassDescriptor,
new CXFA_ThisProxy(pSubform, pScriptNode));
RemoveBuiltInObjs(pNewContext.get());
pNewContext->EnableCompatibleMode();
CFXJSE_Context* pResult = pNewContext.get();
m_mapVariableToContext[pScriptNode] = std::move(pNewContext);
return pResult;
}
CXFA_Object* CFXJSE_Engine::GetVariablesThis(CXFA_Object* pObject,
bool bScriptNode) {
CXFA_ThisProxy* pProxy = ToThisProxy(pObject);
if (!pProxy)
return pObject;
return bScriptNode ? pProxy->GetScriptNode() : pProxy->GetThisNode();
}
bool CFXJSE_Engine::RunVariablesScript(CXFA_Node* pScriptNode) {
if (!pScriptNode)
return false;
if (pScriptNode->GetElementType() != XFA_Element::Script)
return true;
CXFA_Node* pParent = pScriptNode->GetParent();
if (!pParent || pParent->GetElementType() != XFA_Element::Variables)
return false;
auto it = m_mapVariableToContext.find(pScriptNode);
if (it != m_mapVariableToContext.end() && it->second)
return true;
CXFA_Node* pTextNode = pScriptNode->GetFirstChild();
if (!pTextNode)
return false;
Optional<WideString> wsScript =
pTextNode->JSObject()->TryCData(XFA_Attribute::Value, true);
if (!wsScript)
return false;
ByteString btScript = wsScript->ToUTF8();
auto hRetValue = pdfium::MakeUnique<CFXJSE_Value>(GetIsolate());
CXFA_Node* pThisObject = pParent->GetParent();
CFXJSE_Context* pVariablesContext =
CreateVariablesContext(pScriptNode, pThisObject);
AutoRestorer<UnownedPtr<CXFA_Object>> nodeRestorer(&m_pThisObject);
m_pThisObject = pThisObject;
return pVariablesContext->ExecuteScript(btScript.c_str(), hRetValue.get(),
nullptr);
}
bool CFXJSE_Engine::QueryVariableValue(CXFA_Node* pScriptNode,
ByteStringView szPropName,
CFXJSE_Value* pValue,
bool bGetter) {
if (!pScriptNode || pScriptNode->GetElementType() != XFA_Element::Script)
return false;
CXFA_Node* variablesNode = pScriptNode->GetParent();
if (!variablesNode ||
variablesNode->GetElementType() != XFA_Element::Variables)
return false;
auto it = m_mapVariableToContext.find(pScriptNode);
if (it == m_mapVariableToContext.end() || !it->second)
return false;
CFXJSE_Context* pVariableContext = it->second.get();
std::unique_ptr<CFXJSE_Value> pObject = pVariableContext->GetGlobalObject();
auto hVariableValue = pdfium::MakeUnique<CFXJSE_Value>(GetIsolate());
if (!bGetter) {
pObject->SetObjectOwnProperty(szPropName, pValue);
return true;
}
if (!pObject->HasObjectOwnProperty(szPropName, false))
return false;
pObject->GetObjectProperty(szPropName, hVariableValue.get());
if (hVariableValue->IsFunction())
pValue->SetFunctionBind(hVariableValue.get(), pObject.get());
else if (bGetter)
pValue->Assign(hVariableValue.get());
else
hVariableValue.get()->Assign(pValue);
return true;
}
void CFXJSE_Engine::RemoveBuiltInObjs(CFXJSE_Context* pContext) const {
const ByteStringView kObjNames[2] = {"Number", "Date"};
std::unique_ptr<CFXJSE_Value> pObject = pContext->GetGlobalObject();
auto hProp = pdfium::MakeUnique<CFXJSE_Value>(GetIsolate());
for (const auto& obj : kObjNames) {
if (pObject->GetObjectProperty(obj, hProp.get()))
pObject->DeleteObjectProperty(obj);
}
}
bool CFXJSE_Engine::ResolveObjects(CXFA_Object* refObject,
WideStringView wsExpression,
XFA_RESOLVENODE_RS* resolveNodeRS,
uint32_t dwStyles,
CXFA_Node* bindNode) {
if (wsExpression.IsEmpty())
return false;
if (m_eScriptType != CXFA_Script::Type::Formcalc ||
(dwStyles & (XFA_RESOLVENODE_Parent | XFA_RESOLVENODE_Siblings))) {
m_upObjectArray.clear();
}
if (refObject && refObject->IsNode() &&
(dwStyles & (XFA_RESOLVENODE_Parent | XFA_RESOLVENODE_Siblings))) {
m_upObjectArray.push_back(refObject->AsNode());
}
bool bNextCreate = false;
CXFA_NodeHelper* pNodeHelper = m_ResolveProcessor->GetNodeHelper();
if (dwStyles & XFA_RESOLVENODE_CreateNode)
pNodeHelper->SetCreateNodeType(bindNode);
pNodeHelper->m_pCreateParent = nullptr;
pNodeHelper->m_iCurAllStart = -1;
CFXJSE_ResolveNodeData rndFind(this);
int32_t nStart = 0;
int32_t nLevel = 0;
std::vector<UnownedPtr<CXFA_Object>> findObjects;
findObjects.emplace_back(refObject ? refObject : m_pDocument->GetRoot());
int32_t nNodes = 0;
while (true) {
nNodes = pdfium::CollectionSize<int32_t>(findObjects);
int32_t i = 0;
rndFind.m_dwStyles = dwStyles;
m_ResolveProcessor->SetCurStart(nStart);
nStart = m_ResolveProcessor->GetFilter(wsExpression, nStart, rndFind);
if (nStart < 1) {
if ((dwStyles & XFA_RESOLVENODE_CreateNode) && !bNextCreate) {
CXFA_Node* pDataNode = nullptr;
nStart = pNodeHelper->m_iCurAllStart;
if (nStart != -1) {
pDataNode = m_pDocument->GetNotBindNode(findObjects);
if (pDataNode) {
findObjects.clear();
findObjects.emplace_back(pDataNode);
break;
}
} else {
pDataNode = findObjects.front()->AsNode();
findObjects.clear();
findObjects.emplace_back(pDataNode);
break;
}
dwStyles |= XFA_RESOLVENODE_Bind;
findObjects.clear();
findObjects.emplace_back(pNodeHelper->m_pAllStartParent.Get());
continue;
}
break;
}
if (bNextCreate) {
int32_t checked_length =
pdfium::base::checked_cast<int32_t>(wsExpression.GetLength());
if (pNodeHelper->CreateNode(rndFind.m_wsName, rndFind.m_wsCondition,
nStart == checked_length, this)) {
continue;
}
break;
}
std::vector<UnownedPtr<CXFA_Object>> retObjects;
while (i < nNodes) {
bool bDataBind = false;
if (((dwStyles & XFA_RESOLVENODE_Bind) ||
(dwStyles & XFA_RESOLVENODE_CreateNode)) &&
nNodes > 1) {
CFXJSE_ResolveNodeData rndBind(nullptr);
m_ResolveProcessor->GetFilter(wsExpression, nStart, rndBind);
m_ResolveProcessor->SetIndexDataBind(rndBind.m_wsCondition, i, nNodes);
bDataBind = true;
}
rndFind.m_CurObject = findObjects[i++].Get();
rndFind.m_nLevel = nLevel;
rndFind.m_dwFlag = XFA_ResolveNode_RSType_Nodes;
if (!m_ResolveProcessor->Resolve(rndFind))
continue;
if (rndFind.m_dwFlag == XFA_ResolveNode_RSType_Attribute &&
rndFind.m_ScriptAttribute.callback &&
nStart <
pdfium::base::checked_cast<int32_t>(wsExpression.GetLength())) {
auto pValue = pdfium::MakeUnique<CFXJSE_Value>(GetIsolate());
CJX_Object* jsObject = rndFind.m_Objects.front()->JSObject();
(*rndFind.m_ScriptAttribute.callback)(
jsObject, pValue.get(), false, rndFind.m_ScriptAttribute.attribute);
rndFind.m_Objects.front() = ToObject(pValue.get());
}
if (!m_upObjectArray.empty())
m_upObjectArray.pop_back();
retObjects.insert(retObjects.end(), rndFind.m_Objects.begin(),
rndFind.m_Objects.end());
rndFind.m_Objects.clear();
if (bDataBind)
break;
}
findObjects.clear();
nNodes = pdfium::CollectionSize<int32_t>(retObjects);
if (nNodes < 1) {
if (dwStyles & XFA_RESOLVENODE_CreateNode) {
bNextCreate = true;
if (!pNodeHelper->m_pCreateParent) {
pNodeHelper->m_pCreateParent = ToNode(rndFind.m_CurObject.Get());
pNodeHelper->m_iCreateCount = 1;
}
int32_t checked_length =
pdfium::base::checked_cast<int32_t>(wsExpression.GetLength());
if (pNodeHelper->CreateNode(rndFind.m_wsName, rndFind.m_wsCondition,
nStart == checked_length, this)) {
continue;
}
}
break;
}
findObjects = std::move(retObjects);
rndFind.m_Objects.clear();
if (nLevel == 0)
dwStyles &= ~(XFA_RESOLVENODE_Parent | XFA_RESOLVENODE_Siblings);
nLevel++;
}
if (!bNextCreate) {
resolveNodeRS->dwFlags = rndFind.m_dwFlag;
if (nNodes > 0) {
resolveNodeRS->objects.insert(resolveNodeRS->objects.end(),
findObjects.begin(), findObjects.end());
}
if (rndFind.m_dwFlag == XFA_ResolveNode_RSType_Attribute) {
resolveNodeRS->script_attribute = rndFind.m_ScriptAttribute;
return true;
}
}
if (dwStyles & (XFA_RESOLVENODE_CreateNode | XFA_RESOLVENODE_Bind |
XFA_RESOLVENODE_BindNew)) {
if (pNodeHelper->m_pCreateParent)
resolveNodeRS->objects.emplace_back(pNodeHelper->m_pCreateParent.Get());
else
pNodeHelper->CreateNodeForCondition(rndFind.m_wsCondition);
resolveNodeRS->dwFlags = pNodeHelper->m_iCreateFlag;
if (resolveNodeRS->dwFlags == XFA_ResolveNode_RSType_CreateNodeOne) {
if (pNodeHelper->m_iCurAllStart != -1)
resolveNodeRS->dwFlags = XFA_ResolveNode_RSType_CreateNodeMidAll;
}
if (!bNextCreate && (dwStyles & XFA_RESOLVENODE_CreateNode))
resolveNodeRS->dwFlags = XFA_ResolveNode_RSType_ExistNodes;
return !resolveNodeRS->objects.empty();
}
return nNodes > 0;
}
void CFXJSE_Engine::AddToCacheList(std::unique_ptr<CXFA_List> pList) {
m_CacheList.push_back(std::move(pList));
}
CFXJSE_Value* CFXJSE_Engine::GetJSValueFromMap(CXFA_Object* pObject) {
if (!pObject)
return nullptr;
if (pObject->IsNode())
RunVariablesScript(pObject->AsNode());
auto iter = m_mapObjectToValue.find(pObject);
if (iter != m_mapObjectToValue.end())
return iter->second.get();
auto jsValue = pdfium::MakeUnique<CFXJSE_Value>(GetIsolate());
jsValue->SetObject(pObject, m_pJsClass.Get());
CFXJSE_Value* pValue = jsValue.get();
m_mapObjectToValue.insert(std::make_pair(pObject, std::move(jsValue)));
return pValue;
}
int32_t CFXJSE_Engine::GetIndexByName(CXFA_Node* refNode) {
CXFA_NodeHelper* lpNodeHelper = m_ResolveProcessor->GetNodeHelper();
return lpNodeHelper->GetIndex(refNode, XFA_LOGIC_Transparent,
lpNodeHelper->NodeIsProperty(refNode), false);
}
int32_t CFXJSE_Engine::GetIndexByClassName(CXFA_Node* refNode) {
CXFA_NodeHelper* lpNodeHelper = m_ResolveProcessor->GetNodeHelper();
return lpNodeHelper->GetIndex(refNode, XFA_LOGIC_Transparent,
lpNodeHelper->NodeIsProperty(refNode), true);
}
WideString CFXJSE_Engine::GetSomExpression(CXFA_Node* refNode) {
CXFA_NodeHelper* lpNodeHelper = m_ResolveProcessor->GetNodeHelper();
return lpNodeHelper->GetNameExpression(refNode, true);
}
void CFXJSE_Engine::SetNodesOfRunScript(std::vector<CXFA_Node*>* pArray) {
m_pScriptNodeArray = pArray;
}
void CFXJSE_Engine::AddNodesOfRunScript(CXFA_Node* pNode) {
if (m_pScriptNodeArray && !pdfium::ContainsValue(*m_pScriptNodeArray, pNode))
m_pScriptNodeArray->push_back(pNode);
}
CXFA_Object* CFXJSE_Engine::ToXFAObject(v8::Local<v8::Value> obj) {
if (obj.IsEmpty() || !obj->IsObject())
return nullptr;
CFXJSE_HostObject* pHostObj =
FXJSE_RetrieveObjectBinding(obj.As<v8::Object>());
return pHostObj ? pHostObj->AsCXFAObject() : nullptr;
}
v8::Local<v8::Value> CFXJSE_Engine::NewXFAObject(
CXFA_Object* obj,
v8::Global<v8::FunctionTemplate>& tmpl) {
v8::EscapableHandleScope scope(GetIsolate());
v8::Local<v8::FunctionTemplate> klass =
v8::Local<v8::FunctionTemplate>::New(GetIsolate(), tmpl);
v8::Local<v8::Object> object = klass->InstanceTemplate()
->NewInstance(m_JsContext->GetContext())
.ToLocalChecked();
FXJSE_UpdateObjectBinding(object, obj);
return scope.Escape(object);
}