// Copyright 2017 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/cjx_object.h"

#include <tuple>

#include "core/fxcrt/cfx_decimal.h"
#include "core/fxcrt/fx_extension.h"
#include "core/fxcrt/xml/cfx_xmltext.h"
#include "fxjs/cfxjse_engine.h"
#include "fxjs/cfxjse_value.h"
#include "fxjs/cjs_return.h"
#include "fxjs/xfa/cjx_boolean.h"
#include "fxjs/xfa/cjx_draw.h"
#include "fxjs/xfa/cjx_field.h"
#include "fxjs/xfa/cjx_instancemanager.h"
#include "third_party/base/ptr_util.h"
#include "xfa/fxfa/cxfa_ffnotify.h"
#include "xfa/fxfa/cxfa_ffwidget.h"
#include "xfa/fxfa/cxfa_widgetacc.h"
#include "xfa/fxfa/parser/cxfa_border.h"
#include "xfa/fxfa/parser/cxfa_datavalue.h"
#include "xfa/fxfa/parser/cxfa_document.h"
#include "xfa/fxfa/parser/cxfa_edge.h"
#include "xfa/fxfa/parser/cxfa_fill.h"
#include "xfa/fxfa/parser/cxfa_font.h"
#include "xfa/fxfa/parser/cxfa_layoutprocessor.h"
#include "xfa/fxfa/parser/cxfa_measurement.h"
#include "xfa/fxfa/parser/cxfa_node.h"
#include "xfa/fxfa/parser/cxfa_object.h"
#include "xfa/fxfa/parser/cxfa_occur.h"
#include "xfa/fxfa/parser/cxfa_proto.h"
#include "xfa/fxfa/parser/cxfa_subform.h"
#include "xfa/fxfa/parser/cxfa_validate.h"
#include "xfa/fxfa/parser/cxfa_value.h"
#include "xfa/fxfa/parser/xfa_utils.h"

namespace {

void XFA_DeleteWideString(void* pData) {
  delete static_cast<WideString*>(pData);
}

void XFA_CopyWideString(void*& pData) {
  if (!pData)
    return;
  pData = new WideString(*reinterpret_cast<WideString*>(pData));
}

XFA_MAPDATABLOCKCALLBACKINFO deleteWideStringCallBack = {XFA_DeleteWideString,
                                                         XFA_CopyWideString};

enum XFA_KEYTYPE {
  XFA_KEYTYPE_Custom,
  XFA_KEYTYPE_Element,
};

void* GetMapKey_Custom(const WideStringView& wsKey) {
  uint32_t dwKey = FX_HashCode_GetW(wsKey, false);
  return (void*)(uintptr_t)((dwKey << 1) | XFA_KEYTYPE_Custom);
}

void* GetMapKey_Element(XFA_Element eType, XFA_Attribute eAttribute) {
  return (void*)(uintptr_t)((static_cast<uint32_t>(eType) << 16) |
                            (static_cast<uint32_t>(eAttribute) << 8) |
                            XFA_KEYTYPE_Element);
}

void XFA_DefaultFreeData(void* pData) {}

XFA_MAPDATABLOCKCALLBACKINFO gs_XFADefaultFreeData = {XFA_DefaultFreeData,
                                                      nullptr};

std::tuple<int32_t, int32_t, int32_t> StrToRGB(const WideString& strRGB) {
  int32_t r = 0;
  int32_t g = 0;
  int32_t b = 0;

  size_t iIndex = 0;
  for (size_t i = 0; i < strRGB.GetLength(); ++i) {
    wchar_t ch = strRGB[i];
    if (ch == L',')
      ++iIndex;
    if (iIndex > 2)
      break;

    int32_t iValue = ch - L'0';
    if (iValue >= 0 && iValue <= 9) {
      switch (iIndex) {
        case 0:
          r = r * 10 + iValue;
          break;
        case 1:
          g = g * 10 + iValue;
          break;
        default:
          b = b * 10 + iValue;
          break;
      }
    }
  }
  return {r, g, b};
}

}  // namespace

struct XFA_MAPDATABLOCK {
  uint8_t* GetData() const { return (uint8_t*)this + sizeof(XFA_MAPDATABLOCK); }

  XFA_MAPDATABLOCKCALLBACKINFO* pCallbackInfo;
  int32_t iBytes;
};

struct XFA_MAPMODULEDATA {
  XFA_MAPMODULEDATA() {}
  ~XFA_MAPMODULEDATA() {}

  std::map<void*, void*> m_ValueMap;
  std::map<void*, XFA_MAPDATABLOCK*> m_BufferMap;
};

CJX_Object::CJX_Object(CXFA_Object* obj) : object_(obj) {}

CJX_Object::~CJX_Object() {
  ClearMapModuleBuffer();
}

void CJX_Object::DefineMethods(const CJX_MethodSpec method_specs[],
                               size_t count) {
  for (size_t i = 0; i < count; ++i)
    method_specs_[method_specs[i].pName] = method_specs[i].pMethodCall;
}

CXFA_Document* CJX_Object::GetDocument() const {
  return object_->GetDocument();
}

void CJX_Object::className(CFXJSE_Value* pValue,
                           bool bSetting,
                           XFA_Attribute eAttribute) {
  if (bSetting) {
    ThrowInvalidPropertyException();
    return;
  }
  pValue->SetString(
      FX_UTF8Encode(GetXFAObject()->GetClassName()).AsStringView());
}

int32_t CJX_Object::Subform_and_SubformSet_InstanceIndex() {
  int32_t index = 0;
  for (CXFA_Node* pNode = ToNode(GetXFAObject())->GetPrevSibling(); pNode;
       pNode = pNode->GetPrevSibling()) {
    if ((pNode->GetElementType() != XFA_Element::Subform) &&
        (pNode->GetElementType() != XFA_Element::SubformSet)) {
      break;
    }
    index++;
  }
  return index;
}

bool CJX_Object::HasMethod(const WideString& func) const {
  return pdfium::ContainsKey(method_specs_, func.UTF8Encode());
}

CJS_Return CJX_Object::RunMethod(
    const WideString& func,
    const std::vector<v8::Local<v8::Value>>& params) {
  auto it = method_specs_.find(func.UTF8Encode());
  if (it == method_specs_.end())
    return CJS_Return(false);
  return it->second(this, GetXFAObject()->GetDocument()->GetScriptContext(),
                    params);
}

void CJX_Object::ThrowTooManyOccurancesException(const WideString& obj) const {
  ThrowException(
      L"The element [%ls] has violated its allowable number of occurrences.",
      obj.c_str());
}

void CJX_Object::ThrowInvalidPropertyException() const {
  ThrowException(L"Invalid property set operation.");
}

void CJX_Object::ThrowIndexOutOfBoundsException() const {
  ThrowException(L"Index value is out of bounds.");
}

void CJX_Object::ThrowParamCountMismatchException(
    const WideString& method) const {
  ThrowException(L"Incorrect number of parameters calling method '%.16s'.",
                 method.c_str());
}

void CJX_Object::ThrowArgumentMismatchException() const {
  ThrowException(L"Argument mismatch in property or function argument.");
}

void CJX_Object::ThrowException(const wchar_t* str, ...) const {
  va_list arg_ptr;
  va_start(arg_ptr, str);
  WideString wsMessage = WideString::FormatV(str, arg_ptr);
  va_end(arg_ptr);

  ASSERT(!wsMessage.IsEmpty());
  FXJSE_ThrowMessage(wsMessage.UTF8Encode().AsStringView());
}

bool CJX_Object::HasAttribute(XFA_Attribute eAttr) {
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  return HasMapModuleKey(pKey);
}

bool CJX_Object::SetAttribute(XFA_Attribute eAttr,
                              const WideStringView& wsValue,
                              bool bNotify) {
  switch (ToNode(GetXFAObject())->GetAttributeType(eAttr)) {
    case XFA_AttributeType::Enum: {
      Optional<XFA_AttributeEnum> item =
          CXFA_Node::NameToAttributeEnum(wsValue);
      return SetEnum(
          eAttr,
          item ? *item : *(ToNode(GetXFAObject())->GetDefaultEnum(eAttr)),
          bNotify);
    }
    case XFA_AttributeType::CData:
      return SetCData(eAttr, WideString(wsValue), bNotify, false);
    case XFA_AttributeType::Boolean:
      return SetBoolean(eAttr, wsValue != L"0", bNotify);
    case XFA_AttributeType::Integer:
      return SetInteger(eAttr,
                        FXSYS_round(FXSYS_wcstof(wsValue.unterminated_c_str(),
                                                 wsValue.GetLength(), nullptr)),
                        bNotify);
    case XFA_AttributeType::Measure:
      return SetMeasure(eAttr, CXFA_Measurement(wsValue), bNotify);
    default:
      break;
  }
  return false;
}

void CJX_Object::SetMapModuleString(void* pKey, const WideStringView& wsValue) {
  SetMapModuleBuffer(pKey, (void*)wsValue.unterminated_c_str(),
                     wsValue.GetLength() * sizeof(wchar_t), nullptr);
}

bool CJX_Object::SetAttribute(const WideStringView& wsAttr,
                              const WideStringView& wsValue,
                              bool bNotify) {
  XFA_Attribute attr = CXFA_Node::NameToAttribute(wsValue);
  if (attr != XFA_Attribute::Unknown)
    return SetAttribute(attr, wsValue, bNotify);

  void* pKey = GetMapKey_Custom(wsAttr);
  SetMapModuleString(pKey, wsValue);
  return true;
}

WideString CJX_Object::GetAttribute(const WideStringView& attr) {
  return TryAttribute(attr, true).value_or(WideString());
}

WideString CJX_Object::GetAttribute(XFA_Attribute attr) {
  return TryAttribute(attr, true).value_or(WideString());
}

Optional<WideString> CJX_Object::TryAttribute(XFA_Attribute eAttr,
                                              bool bUseDefault) {
  switch (ToNode(GetXFAObject())->GetAttributeType(eAttr)) {
    case XFA_AttributeType::Enum: {
      Optional<XFA_AttributeEnum> value = TryEnum(eAttr, bUseDefault);
      if (!value)
        return {};

      return {CXFA_Node::AttributeEnumToName(*value)};
    }
    case XFA_AttributeType::CData:
      return TryCData(eAttr, bUseDefault);

    case XFA_AttributeType::Boolean: {
      Optional<bool> value = TryBoolean(eAttr, bUseDefault);
      if (!value)
        return {};
      return {*value ? L"1" : L"0"};
    }
    case XFA_AttributeType::Integer: {
      Optional<int32_t> iValue = TryInteger(eAttr, bUseDefault);
      if (!iValue)
        return {};
      return {WideString::Format(L"%d", *iValue)};
    }
    case XFA_AttributeType::Measure: {
      Optional<CXFA_Measurement> value = TryMeasure(eAttr, bUseDefault);
      if (!value)
        return {};

      return {value->ToString()};
    }
    default:
      break;
  }
  return {};
}

Optional<WideString> CJX_Object::TryAttribute(const WideStringView& wsAttr,
                                              bool bUseDefault) {
  XFA_Attribute attr = CXFA_Node::NameToAttribute(wsAttr);
  if (attr != XFA_Attribute::Unknown)
    return TryAttribute(attr, bUseDefault);

  void* pKey = GetMapKey_Custom(wsAttr);
  WideStringView wsValueC;
  if (!GetMapModuleString(pKey, wsValueC))
    return {};

  return {WideString(wsValueC)};
}

void CJX_Object::RemoveAttribute(const WideStringView& wsAttr) {
  void* pKey = GetMapKey_Custom(wsAttr);
  if (pKey)
    RemoveMapModuleKey(pKey);
}

Optional<bool> CJX_Object::TryBoolean(XFA_Attribute eAttr, bool bUseDefault) {
  void* pValue = nullptr;
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  if (GetMapModuleValue(pKey, pValue))
    return {!!pValue};
  if (!bUseDefault)
    return {};

  return ToNode(GetXFAObject())->GetDefaultBoolean(eAttr);
}

bool CJX_Object::SetBoolean(XFA_Attribute eAttr, bool bValue, bool bNotify) {
  CFX_XMLElement* elem = SetValue(eAttr, XFA_AttributeType::Boolean,
                                  (void*)(uintptr_t)bValue, bNotify);
  if (elem)
    elem->SetString(CXFA_Node::AttributeToName(eAttr), bValue ? L"1" : L"0");
  return true;
}

bool CJX_Object::GetBoolean(XFA_Attribute eAttr) {
  return TryBoolean(eAttr, true).value_or(false);
}

bool CJX_Object::SetInteger(XFA_Attribute eAttr, int32_t iValue, bool bNotify) {
  CFX_XMLElement* elem = SetValue(eAttr, XFA_AttributeType::Integer,
                                  (void*)(uintptr_t)iValue, bNotify);
  if (elem) {
    elem->SetString(CXFA_Node::AttributeToName(eAttr),
                    WideString::Format(L"%d", iValue));
  }
  return true;
}

int32_t CJX_Object::GetInteger(XFA_Attribute eAttr) {
  return TryInteger(eAttr, true).value_or(0);
}

Optional<int32_t> CJX_Object::TryInteger(XFA_Attribute eAttr,
                                         bool bUseDefault) {
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  void* pValue = nullptr;
  if (GetMapModuleValue(pKey, pValue))
    return {static_cast<int32_t>(reinterpret_cast<uintptr_t>(pValue))};
  if (!bUseDefault)
    return {};

  return ToNode(GetXFAObject())->GetDefaultInteger(eAttr);
}

Optional<XFA_AttributeEnum> CJX_Object::TryEnum(XFA_Attribute eAttr,
                                                bool bUseDefault) {
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  void* pValue = nullptr;
  if (GetMapModuleValue(pKey, pValue)) {
    return {
        static_cast<XFA_AttributeEnum>(reinterpret_cast<uintptr_t>(pValue))};
  }
  if (!bUseDefault)
    return {};

  return ToNode(GetXFAObject())->GetDefaultEnum(eAttr);
}

bool CJX_Object::SetEnum(XFA_Attribute eAttr,
                         XFA_AttributeEnum eValue,
                         bool bNotify) {
  CFX_XMLElement* elem = SetValue(eAttr, XFA_AttributeType::Enum,
                                  (void*)(uintptr_t)eValue, bNotify);
  if (elem) {
    elem->SetString(CXFA_Node::AttributeToName(eAttr),
                    CXFA_Node::AttributeEnumToName(eValue));
  }
  return true;
}

XFA_AttributeEnum CJX_Object::GetEnum(XFA_Attribute eAttr) {
  return TryEnum(eAttr, true).value_or(XFA_AttributeEnum::Unknown);
}

bool CJX_Object::SetMeasure(XFA_Attribute eAttr,
                            CXFA_Measurement mValue,
                            bool bNotify) {
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  OnChanging(eAttr, bNotify);
  SetMapModuleBuffer(pKey, &mValue, sizeof(CXFA_Measurement), nullptr);
  OnChanged(eAttr, bNotify, false);
  return true;
}

Optional<CXFA_Measurement> CJX_Object::TryMeasure(XFA_Attribute eAttr,
                                                  bool bUseDefault) const {
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  void* pValue;
  int32_t iBytes;
  if (GetMapModuleBuffer(pKey, pValue, iBytes, true) &&
      iBytes == sizeof(CXFA_Measurement)) {
    return {*reinterpret_cast<CXFA_Measurement*>(pValue)};
  }
  if (!bUseDefault)
    return {};

  return ToNode(GetXFAObject())->GetDefaultMeasurement(eAttr);
}

Optional<float> CJX_Object::TryMeasureAsFloat(XFA_Attribute attr) const {
  Optional<CXFA_Measurement> measure = TryMeasure(attr, false);
  if (measure)
    return {measure->ToUnit(XFA_Unit::Pt)};
  return {};
}

CXFA_Measurement CJX_Object::GetMeasure(XFA_Attribute eAttr) const {
  return TryMeasure(eAttr, true).value_or(CXFA_Measurement());
}

WideString CJX_Object::GetCData(XFA_Attribute eAttr) {
  return TryCData(eAttr, true).value_or(WideString());
}

bool CJX_Object::SetCData(XFA_Attribute eAttr,
                          const WideString& wsValue,
                          bool bNotify,
                          bool bScriptModify) {
  CXFA_Node* xfaObj = ToNode(GetXFAObject());
  void* pKey = GetMapKey_Element(xfaObj->GetElementType(), eAttr);
  OnChanging(eAttr, bNotify);
  if (eAttr == XFA_Attribute::Value) {
    WideString* pClone = new WideString(wsValue);
    SetUserData(pKey, pClone, &deleteWideStringCallBack);
  } else {
    SetMapModuleString(pKey, wsValue.AsStringView());
    if (eAttr == XFA_Attribute::Name)
      xfaObj->UpdateNameHash();
  }
  OnChanged(eAttr, bNotify, bScriptModify);

  if (!xfaObj->IsNeedSavingXMLNode() || eAttr == XFA_Attribute::QualifiedName ||
      eAttr == XFA_Attribute::BindingNode) {
    return true;
  }

  if (eAttr == XFA_Attribute::Name &&
      (xfaObj->GetElementType() == XFA_Element::DataValue ||
       xfaObj->GetElementType() == XFA_Element::DataGroup)) {
    return true;
  }

  auto* elem = static_cast<CFX_XMLElement*>(xfaObj->GetXMLMappingNode());
  if (eAttr == XFA_Attribute::Value) {
    FX_XMLNODETYPE eXMLType = elem->GetType();
    switch (eXMLType) {
      case FX_XMLNODE_Element:
        if (xfaObj->IsAttributeInXML()) {
          elem->SetString(WideString(GetCData(XFA_Attribute::QualifiedName)),
                          wsValue);
        } else {
          bool bDeleteChildren = true;
          if (xfaObj->GetPacketType() == XFA_PacketType::Datasets) {
            for (CXFA_Node* pChildDataNode = xfaObj->GetFirstChild();
                 pChildDataNode;
                 pChildDataNode = pChildDataNode->GetNextSibling()) {
              if (!pChildDataNode->GetBindItems()->empty()) {
                bDeleteChildren = false;
                break;
              }
            }
          }
          if (bDeleteChildren)
            elem->DeleteChildren();

          elem->SetTextData(wsValue);
        }
        break;
      case FX_XMLNODE_Text:
        static_cast<CFX_XMLText*>(xfaObj->GetXMLMappingNode())
            ->SetText(wsValue);
        break;
      default:
        NOTREACHED();
    }
    return true;
  }
  ASSERT(elem->GetType() == FX_XMLNODE_Element);

  WideString wsAttrName = CXFA_Node::AttributeToName(eAttr);
  if (eAttr == XFA_Attribute::ContentType)
    wsAttrName = L"xfa:" + wsAttrName;

  elem->SetString(wsAttrName, wsValue);
  return true;
}

void CJX_Object::SetAttributeValue(const WideString& wsValue,
                                   const WideString& wsXMLValue,
                                   bool bNotify,
                                   bool bScriptModify) {
  auto* xfaObj = ToNode(GetXFAObject());

  void* pKey =
      GetMapKey_Element(xfaObj->GetElementType(), XFA_Attribute::Value);
  OnChanging(XFA_Attribute::Value, bNotify);
  WideString* pClone = new WideString(wsValue);
  SetUserData(pKey, pClone, &deleteWideStringCallBack);
  OnChanged(XFA_Attribute::Value, bNotify, bScriptModify);
  if (!xfaObj->IsNeedSavingXMLNode())
    return;

  auto* elem = static_cast<CFX_XMLElement*>(xfaObj->GetXMLMappingNode());
  FX_XMLNODETYPE eXMLType = elem->GetType();
  switch (eXMLType) {
    case FX_XMLNODE_Element:
      if (xfaObj->IsAttributeInXML()) {
        elem->SetString(WideString(GetCData(XFA_Attribute::QualifiedName)),
                        wsXMLValue);
      } else {
        bool bDeleteChildren = true;
        if (xfaObj->GetPacketType() == XFA_PacketType::Datasets) {
          for (CXFA_Node* pChildDataNode = xfaObj->GetFirstChild();
               pChildDataNode;
               pChildDataNode = pChildDataNode->GetNextSibling()) {
            if (!pChildDataNode->GetBindItems()->empty()) {
              bDeleteChildren = false;
              break;
            }
          }
        }
        if (bDeleteChildren)
          elem->DeleteChildren();

        elem->SetTextData(wsXMLValue);
      }
      break;
    case FX_XMLNODE_Text:
      static_cast<CFX_XMLText*>(xfaObj->GetXMLMappingNode())
          ->SetText(wsXMLValue);
      break;
    default:
      ASSERT(0);
  }
}

Optional<WideString> CJX_Object::TryCData(XFA_Attribute eAttr,
                                          bool bUseDefault) {
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  if (eAttr == XFA_Attribute::Value) {
    void* pData;
    int32_t iBytes = 0;
    WideString* pStr = nullptr;
    if (GetMapModuleBuffer(pKey, pData, iBytes, true) &&
        iBytes == sizeof(void*)) {
      memcpy(&pData, pData, iBytes);
      pStr = reinterpret_cast<WideString*>(pData);
    }
    if (pStr)
      return {*pStr};
  } else {
    WideStringView wsValueC;
    if (GetMapModuleString(pKey, wsValueC))
      return {WideString(wsValueC)};
  }
  if (!bUseDefault)
    return {};

  return ToNode(GetXFAObject())->GetDefaultCData(eAttr);
}

CFX_XMLElement* CJX_Object::SetValue(XFA_Attribute eAttr,
                                     XFA_AttributeType eType,
                                     void* pValue,
                                     bool bNotify) {
  void* pKey = GetMapKey_Element(GetXFAObject()->GetElementType(), eAttr);
  OnChanging(eAttr, bNotify);
  SetMapModuleValue(pKey, pValue);
  OnChanged(eAttr, bNotify, false);
  if (!ToNode(GetXFAObject())->IsNeedSavingXMLNode())
    return nullptr;

  auto* elem =
      static_cast<CFX_XMLElement*>(ToNode(GetXFAObject())->GetXMLMappingNode());
  ASSERT(elem->GetType() == FX_XMLNODE_Element);

  return elem;
}

bool CJX_Object::SetContent(const WideString& wsContent,
                            const WideString& wsXMLValue,
                            bool bNotify,
                            bool bScriptModify,
                            bool bSyncData) {
  CXFA_Node* pNode = nullptr;
  CXFA_Node* pBindNode = nullptr;
  switch (ToNode(GetXFAObject())->GetObjectType()) {
    case XFA_ObjectType::ContainerNode: {
      if (XFA_FieldIsMultiListBox(ToNode(GetXFAObject()))) {
        CXFA_Value* pValue =
            GetOrCreateProperty<CXFA_Value>(0, XFA_Element::Value);
        if (!pValue)
          break;

        CXFA_Node* pChildValue = pValue->GetFirstChild();
        ASSERT(pChildValue);
        pChildValue->JSObject()->SetCData(XFA_Attribute::ContentType,
                                          L"text/xml", false, false);
        pChildValue->JSObject()->SetContent(wsContent, wsContent, bNotify,
                                            bScriptModify, false);
        CXFA_Node* pBind = ToNode(GetXFAObject())->GetBindData();
        if (bSyncData && pBind) {
          std::vector<WideString> wsSaveTextArray;
          size_t iSize = 0;
          if (!wsContent.IsEmpty()) {
            size_t iStart = 0;
            size_t iLength = wsContent.GetLength();
            auto iEnd = wsContent.Find(L'\n', iStart);
            iEnd = !iEnd.has_value() ? iLength : iEnd;
            while (iEnd.value() >= iStart) {
              wsSaveTextArray.push_back(
                  wsContent.Mid(iStart, iEnd.value() - iStart));
              iStart = iEnd.value() + 1;
              if (iStart >= iLength)
                break;

              iEnd = wsContent.Find(L'\n', iStart);
              if (!iEnd.has_value()) {
                wsSaveTextArray.push_back(
                    wsContent.Mid(iStart, iLength - iStart));
              }
            }
            iSize = wsSaveTextArray.size();
          }
          if (iSize == 0) {
            while (CXFA_Node* pChildNode = pBind->GetFirstChild()) {
              pBind->RemoveChild(pChildNode, true);
            }
          } else {
            std::vector<CXFA_Node*> valueNodes = pBind->GetNodeList(
                XFA_NODEFILTER_Children, XFA_Element::DataValue);
            size_t iDatas = valueNodes.size();
            if (iDatas < iSize) {
              size_t iAddNodes = iSize - iDatas;
              CXFA_Node* pValueNodes = nullptr;
              while (iAddNodes-- > 0) {
                pValueNodes =
                    pBind->CreateSamePacketNode(XFA_Element::DataValue);
                pValueNodes->JSObject()->SetCData(XFA_Attribute::Name, L"value",
                                                  false, false);
                pValueNodes->CreateXMLMappingNode();
                pBind->InsertChild(pValueNodes, nullptr);
              }
              pValueNodes = nullptr;
            } else if (iDatas > iSize) {
              size_t iDelNodes = iDatas - iSize;
              while (iDelNodes-- > 0) {
                pBind->RemoveChild(pBind->GetFirstChild(), true);
              }
            }
            int32_t i = 0;
            for (CXFA_Node* pValueNode = pBind->GetFirstChild(); pValueNode;
                 pValueNode = pValueNode->GetNextSibling()) {
              pValueNode->JSObject()->SetAttributeValue(
                  wsSaveTextArray[i], wsSaveTextArray[i], false, false);
              i++;
            }
          }
          for (const auto& pArrayNode : *(pBind->GetBindItems())) {
            if (pArrayNode.Get() != ToNode(GetXFAObject())) {
              pArrayNode->JSObject()->SetContent(wsContent, wsContent, bNotify,
                                                 bScriptModify, false);
            }
          }
        }
        break;
      }
      if (ToNode(GetXFAObject())->GetElementType() == XFA_Element::ExclGroup) {
        pNode = ToNode(GetXFAObject());
      } else {
        CXFA_Value* pValue =
            GetOrCreateProperty<CXFA_Value>(0, XFA_Element::Value);
        if (!pValue)
          break;

        CXFA_Node* pChildValue = pValue->GetFirstChild();
        ASSERT(pChildValue);
        pChildValue->JSObject()->SetContent(wsContent, wsContent, bNotify,
                                            bScriptModify, false);
      }
      pBindNode = ToNode(GetXFAObject())->GetBindData();
      if (pBindNode && bSyncData) {
        pBindNode->JSObject()->SetContent(wsContent, wsXMLValue, bNotify,
                                          bScriptModify, false);
        for (const auto& pArrayNode : *(pBindNode->GetBindItems())) {
          if (pArrayNode.Get() != ToNode(GetXFAObject())) {
            pArrayNode->JSObject()->SetContent(wsContent, wsContent, bNotify,
                                               true, false);
          }
        }
      }
      pBindNode = nullptr;
      break;
    }
    case XFA_ObjectType::ContentNode: {
      WideString wsContentType;
      if (ToNode(GetXFAObject())->GetElementType() == XFA_Element::ExData) {
        Optional<WideString> ret =
            TryAttribute(XFA_Attribute::ContentType, false);
        if (ret)
          wsContentType = *ret;
        if (wsContentType == L"text/html") {
          wsContentType = L"";
          SetAttribute(XFA_Attribute::ContentType, wsContentType.AsStringView(),
                       false);
        }
      }

      CXFA_Node* pContentRawDataNode = ToNode(GetXFAObject())->GetFirstChild();
      if (!pContentRawDataNode) {
        pContentRawDataNode =
            ToNode(GetXFAObject())
                ->CreateSamePacketNode((wsContentType == L"text/xml")
                                           ? XFA_Element::Sharpxml
                                           : XFA_Element::Sharptext);
        ToNode(GetXFAObject())->InsertChild(pContentRawDataNode, nullptr);
      }
      return pContentRawDataNode->JSObject()->SetContent(
          wsContent, wsXMLValue, bNotify, bScriptModify, bSyncData);
    }
    case XFA_ObjectType::NodeC:
    case XFA_ObjectType::TextNode:
      pNode = ToNode(GetXFAObject());
      break;
    case XFA_ObjectType::NodeV:
      pNode = ToNode(GetXFAObject());
      if (bSyncData &&
          ToNode(GetXFAObject())->GetPacketType() == XFA_PacketType::Form) {
        CXFA_Node* pParent = ToNode(GetXFAObject())->GetParent();
        if (pParent) {
          pParent = pParent->GetParent();
        }
        if (pParent && pParent->GetElementType() == XFA_Element::Value) {
          pParent = pParent->GetParent();
          if (pParent && pParent->IsContainerNode()) {
            pBindNode = pParent->GetBindData();
            if (pBindNode) {
              pBindNode->JSObject()->SetContent(wsContent, wsXMLValue, bNotify,
                                                bScriptModify, false);
            }
          }
        }
      }
      break;
    default:
      if (ToNode(GetXFAObject())->GetElementType() == XFA_Element::DataValue) {
        pNode = ToNode(GetXFAObject());
        pBindNode = ToNode(GetXFAObject());
      }
      break;
  }
  if (!pNode)
    return false;

  SetAttributeValue(wsContent, wsXMLValue, bNotify, bScriptModify);
  if (pBindNode && bSyncData) {
    for (const auto& pArrayNode : *(pBindNode->GetBindItems())) {
      pArrayNode->JSObject()->SetContent(wsContent, wsContent, bNotify,
                                         bScriptModify, false);
    }
  }
  return true;
}

WideString CJX_Object::GetContent(bool bScriptModify) {
  return TryContent(bScriptModify, true).value_or(WideString());
}

Optional<WideString> CJX_Object::TryContent(bool bScriptModify, bool bProto) {
  CXFA_Node* pNode = nullptr;
  switch (ToNode(GetXFAObject())->GetObjectType()) {
    case XFA_ObjectType::ContainerNode:
      if (ToNode(GetXFAObject())->GetElementType() == XFA_Element::ExclGroup) {
        pNode = ToNode(GetXFAObject());
      } else {
        CXFA_Value* pValue =
            ToNode(GetXFAObject())
                ->GetChild<CXFA_Value>(0, XFA_Element::Value, false);
        if (!pValue)
          return {};

        CXFA_Node* pChildValue = pValue->GetFirstChild();
        if (pChildValue && XFA_FieldIsMultiListBox(ToNode(GetXFAObject()))) {
          pChildValue->JSObject()->SetAttribute(XFA_Attribute::ContentType,
                                                L"text/xml", false);
        }
        if (pChildValue)
          return pChildValue->JSObject()->TryContent(bScriptModify, bProto);
        return {};
      }
      break;
    case XFA_ObjectType::ContentNode: {
      CXFA_Node* pContentRawDataNode = ToNode(GetXFAObject())->GetFirstChild();
      if (!pContentRawDataNode) {
        XFA_Element element = XFA_Element::Sharptext;
        if (ToNode(GetXFAObject())->GetElementType() == XFA_Element::ExData) {
          Optional<WideString> contentType =
              TryAttribute(XFA_Attribute::ContentType, false);
          if (contentType) {
            if (*contentType == L"text/html")
              element = XFA_Element::SharpxHTML;
            else if (*contentType == L"text/xml")
              element = XFA_Element::Sharpxml;
          }
        }
        pContentRawDataNode =
            ToNode(GetXFAObject())->CreateSamePacketNode(element);
        ToNode(GetXFAObject())->InsertChild(pContentRawDataNode, nullptr);
      }
      return pContentRawDataNode->JSObject()->TryContent(bScriptModify, true);
    }
    case XFA_ObjectType::NodeC:
    case XFA_ObjectType::NodeV:
    case XFA_ObjectType::TextNode:
      pNode = ToNode(GetXFAObject());
    default:
      if (ToNode(GetXFAObject())->GetElementType() == XFA_Element::DataValue)
        pNode = ToNode(GetXFAObject());
      break;
  }
  if (pNode) {
    if (bScriptModify) {
      CFXJSE_Engine* pScriptContext = GetDocument()->GetScriptContext();
      if (pScriptContext)
        GetDocument()->GetScriptContext()->AddNodesOfRunScript(
            ToNode(GetXFAObject()));
    }
    return TryCData(XFA_Attribute::Value, false);
  }
  return {};
}

Optional<WideString> CJX_Object::TryNamespace() {
  if (ToNode(GetXFAObject())->IsModelNode() ||
      ToNode(GetXFAObject())->GetElementType() == XFA_Element::Packet) {
    CFX_XMLNode* pXMLNode = ToNode(GetXFAObject())->GetXMLMappingNode();
    if (!pXMLNode || pXMLNode->GetType() != FX_XMLNODE_Element)
      return {};

    return {static_cast<CFX_XMLElement*>(pXMLNode)->GetNamespaceURI()};
  }

  if (ToNode(GetXFAObject())->GetPacketType() != XFA_PacketType::Datasets)
    return ToNode(GetXFAObject())->GetModelNode()->JSObject()->TryNamespace();

  CFX_XMLNode* pXMLNode = ToNode(GetXFAObject())->GetXMLMappingNode();
  if (!pXMLNode || pXMLNode->GetType() != FX_XMLNODE_Element)
    return {};

  if (ToNode(GetXFAObject())->GetElementType() == XFA_Element::DataValue &&
      GetEnum(XFA_Attribute::Contains) == XFA_AttributeEnum::MetaData) {
    WideString wsNamespace;
    bool ret = XFA_FDEExtension_ResolveNamespaceQualifier(
        static_cast<CFX_XMLElement*>(pXMLNode),
        GetCData(XFA_Attribute::QualifiedName), &wsNamespace);
    if (!ret)
      return {};
    return {wsNamespace};
  }
  return {static_cast<CFX_XMLElement*>(pXMLNode)->GetNamespaceURI()};
}

std::pair<CXFA_Node*, int32_t> CJX_Object::GetPropertyInternal(
    int32_t index,
    XFA_Element eProperty) const {
  const CXFA_Node* xfaNode = ToNode(GetXFAObject());
  if (index < 0 || index >= xfaNode->PropertyOccuranceCount(eProperty))
    return {nullptr, 0};

  int32_t iCount = 0;
  for (CXFA_Node* pNode = xfaNode->GetFirstChild(); pNode;
       pNode = pNode->GetNextSibling()) {
    if (pNode->GetElementType() == eProperty) {
      iCount++;
      if (iCount > index)
        return {pNode, iCount};
    }
  }
  return {nullptr, iCount};
}

CXFA_Node* CJX_Object::GetOrCreatePropertyInternal(int32_t index,
                                                   XFA_Element eProperty) {
  CXFA_Node* xfaNode = ToNode(GetXFAObject());
  if (index < 0 || index >= xfaNode->PropertyOccuranceCount(eProperty))
    return nullptr;

  int32_t iCount = 0;
  CXFA_Node* node;
  std::tie(node, iCount) = GetPropertyInternal(index, eProperty);
  if (node)
    return node;

  if (xfaNode->HasPropertyFlags(eProperty, XFA_PROPERTYFLAG_OneOf)) {
    for (CXFA_Node* pNode = xfaNode->GetFirstChild(); pNode;
         pNode = pNode->GetNextSibling()) {
      if (xfaNode->HasPropertyFlags(pNode->GetElementType(),
                                    XFA_PROPERTYFLAG_OneOf)) {
        return nullptr;
      }
    }
  }

  CXFA_Node* pNewNode = nullptr;
  for (; iCount <= index; ++iCount) {
    pNewNode = GetDocument()->CreateNode(xfaNode->GetPacketType(), eProperty);
    if (!pNewNode)
      return nullptr;

    xfaNode->InsertChild(pNewNode, nullptr);
    pNewNode->SetFlag(XFA_NodeFlag_Initialized, true);
  }
  return pNewNode;
}

bool CJX_Object::SetUserData(void* pKey,
                             void* pData,
                             XFA_MAPDATABLOCKCALLBACKINFO* pCallbackInfo) {
  SetMapModuleBuffer(pKey, &pData, sizeof(void*),
                     pCallbackInfo ? pCallbackInfo : &gs_XFADefaultFreeData);
  return true;
}

XFA_MAPMODULEDATA* CJX_Object::CreateMapModuleData() {
  if (!map_module_data_)
    map_module_data_ = pdfium::MakeUnique<XFA_MAPMODULEDATA>();
  return map_module_data_.get();
}

XFA_MAPMODULEDATA* CJX_Object::GetMapModuleData() const {
  return map_module_data_.get();
}

void CJX_Object::SetMapModuleValue(void* pKey, void* pValue) {
  CreateMapModuleData()->m_ValueMap[pKey] = pValue;
}

bool CJX_Object::GetMapModuleValue(void* pKey, void*& pValue) {
  for (CXFA_Node* pNode = ToNode(GetXFAObject()); pNode;
       pNode = pNode->GetTemplateNodeIfExists()) {
    XFA_MAPMODULEDATA* pModule = pNode->JSObject()->GetMapModuleData();
    if (pModule) {
      auto it = pModule->m_ValueMap.find(pKey);
      if (it != pModule->m_ValueMap.end()) {
        pValue = it->second;
        return true;
      }
    }
    if (pNode->GetPacketType() == XFA_PacketType::Datasets)
      break;
  }
  return false;
}

bool CJX_Object::GetMapModuleString(void* pKey, WideStringView& wsValue) {
  void* pValue;
  int32_t iBytes;
  if (!GetMapModuleBuffer(pKey, pValue, iBytes, true))
    return false;

  // Defensive measure: no out-of-bounds pointers even if zero length.
  int32_t iChars = iBytes / sizeof(wchar_t);
  wsValue = WideStringView(iChars ? (const wchar_t*)pValue : nullptr, iChars);
  return true;
}

void CJX_Object::SetMapModuleBuffer(
    void* pKey,
    void* pValue,
    int32_t iBytes,
    XFA_MAPDATABLOCKCALLBACKINFO* pCallbackInfo) {
  XFA_MAPDATABLOCK*& pBuffer = CreateMapModuleData()->m_BufferMap[pKey];
  if (!pBuffer) {
    pBuffer = reinterpret_cast<XFA_MAPDATABLOCK*>(
        FX_Alloc(uint8_t, sizeof(XFA_MAPDATABLOCK) + iBytes));
  } else if (pBuffer->iBytes != iBytes) {
    if (pBuffer->pCallbackInfo && pBuffer->pCallbackInfo->pFree)
      pBuffer->pCallbackInfo->pFree(*(void**)pBuffer->GetData());

    pBuffer = reinterpret_cast<XFA_MAPDATABLOCK*>(
        FX_Realloc(uint8_t, pBuffer, sizeof(XFA_MAPDATABLOCK) + iBytes));
  } else if (pBuffer->pCallbackInfo && pBuffer->pCallbackInfo->pFree) {
    pBuffer->pCallbackInfo->pFree(
        *reinterpret_cast<void**>(pBuffer->GetData()));
  }
  if (!pBuffer)
    return;

  pBuffer->pCallbackInfo = pCallbackInfo;
  pBuffer->iBytes = iBytes;
  memcpy(pBuffer->GetData(), pValue, iBytes);
}

bool CJX_Object::GetMapModuleBuffer(void* pKey,
                                    void*& pValue,
                                    int32_t& iBytes,
                                    bool bProtoAlso) const {
  XFA_MAPDATABLOCK* pBuffer = nullptr;
  for (const CXFA_Node* pNode = ToNode(GetXFAObject()); pNode;
       pNode = pNode->GetTemplateNodeIfExists()) {
    XFA_MAPMODULEDATA* pModule = pNode->JSObject()->GetMapModuleData();
    if (pModule) {
      auto it = pModule->m_BufferMap.find(pKey);
      if (it != pModule->m_BufferMap.end()) {
        pBuffer = it->second;
        break;
      }
    }
    if (!bProtoAlso || pNode->GetPacketType() == XFA_PacketType::Datasets)
      break;
  }
  if (!pBuffer)
    return false;

  pValue = pBuffer->GetData();
  iBytes = pBuffer->iBytes;
  return true;
}

bool CJX_Object::HasMapModuleKey(void* pKey) {
  XFA_MAPMODULEDATA* pModule = GetMapModuleData();
  return pModule && (pdfium::ContainsKey(pModule->m_ValueMap, pKey) ||
                     pdfium::ContainsKey(pModule->m_BufferMap, pKey));
}

void CJX_Object::ClearMapModuleBuffer() {
  XFA_MAPMODULEDATA* pModule = GetMapModuleData();
  if (!pModule)
    return;

  for (auto& pair : pModule->m_BufferMap) {
    XFA_MAPDATABLOCK* pBuffer = pair.second;
    if (pBuffer) {
      if (pBuffer->pCallbackInfo && pBuffer->pCallbackInfo->pFree)
        pBuffer->pCallbackInfo->pFree(*(void**)pBuffer->GetData());

      FX_Free(pBuffer);
    }
  }
  pModule->m_BufferMap.clear();
  pModule->m_ValueMap.clear();
}

void CJX_Object::RemoveMapModuleKey(void* pKey) {
  ASSERT(pKey);

  XFA_MAPMODULEDATA* pModule = GetMapModuleData();
  if (!pModule)
    return;

  auto it = pModule->m_BufferMap.find(pKey);
  if (it != pModule->m_BufferMap.end()) {
    XFA_MAPDATABLOCK* pBuffer = it->second;
    if (pBuffer) {
      if (pBuffer->pCallbackInfo && pBuffer->pCallbackInfo->pFree)
        pBuffer->pCallbackInfo->pFree(*(void**)pBuffer->GetData());

      FX_Free(pBuffer);
    }
    pModule->m_BufferMap.erase(it);
  }
  pModule->m_ValueMap.erase(pKey);
  return;
}

void CJX_Object::MergeAllData(CXFA_Object* pDstModule) {
  XFA_MAPMODULEDATA* pDstModuleData =
      ToNode(pDstModule)->JSObject()->CreateMapModuleData();
  XFA_MAPMODULEDATA* pSrcModuleData = GetMapModuleData();
  if (!pSrcModuleData)
    return;

  for (const auto& pair : pSrcModuleData->m_ValueMap)
    pDstModuleData->m_ValueMap[pair.first] = pair.second;

  for (const auto& pair : pSrcModuleData->m_BufferMap) {
    XFA_MAPDATABLOCK* pSrcBuffer = pair.second;
    XFA_MAPDATABLOCK*& pDstBuffer = pDstModuleData->m_BufferMap[pair.first];
    if (pSrcBuffer->pCallbackInfo && pSrcBuffer->pCallbackInfo->pFree &&
        !pSrcBuffer->pCallbackInfo->pCopy) {
      if (pDstBuffer) {
        pDstBuffer->pCallbackInfo->pFree(*(void**)pDstBuffer->GetData());
        pDstModuleData->m_BufferMap.erase(pair.first);
      }
      continue;
    }
    if (!pDstBuffer) {
      pDstBuffer = (XFA_MAPDATABLOCK*)FX_Alloc(
          uint8_t, sizeof(XFA_MAPDATABLOCK) + pSrcBuffer->iBytes);
    } else if (pDstBuffer->iBytes != pSrcBuffer->iBytes) {
      if (pDstBuffer->pCallbackInfo && pDstBuffer->pCallbackInfo->pFree) {
        pDstBuffer->pCallbackInfo->pFree(*(void**)pDstBuffer->GetData());
      }
      pDstBuffer = (XFA_MAPDATABLOCK*)FX_Realloc(
          uint8_t, pDstBuffer, sizeof(XFA_MAPDATABLOCK) + pSrcBuffer->iBytes);
    } else if (pDstBuffer->pCallbackInfo && pDstBuffer->pCallbackInfo->pFree) {
      pDstBuffer->pCallbackInfo->pFree(*(void**)pDstBuffer->GetData());
    }
    if (!pDstBuffer)
      continue;

    pDstBuffer->pCallbackInfo = pSrcBuffer->pCallbackInfo;
    pDstBuffer->iBytes = pSrcBuffer->iBytes;
    memcpy(pDstBuffer->GetData(), pSrcBuffer->GetData(), pSrcBuffer->iBytes);
    if (pDstBuffer->pCallbackInfo && pDstBuffer->pCallbackInfo->pCopy) {
      pDstBuffer->pCallbackInfo->pCopy(*(void**)pDstBuffer->GetData());
    }
  }
}

void CJX_Object::MoveBufferMapData(CXFA_Object* pDstModule) {
  if (!pDstModule)
    return;

  bool bNeedMove = true;
  if (pDstModule->GetElementType() != GetXFAObject()->GetElementType())
    bNeedMove = false;

  if (bNeedMove)
    ToNode(pDstModule)->JSObject()->SetCalcData(ReleaseCalcData());
  if (!pDstModule->IsNodeV())
    return;

  WideString wsValue = ToNode(pDstModule)->JSObject()->GetContent(false);
  WideString wsFormatValue(wsValue);
  CXFA_Node* pNode = ToNode(pDstModule)->GetContainerNode();
  if (pNode && pNode->GetWidgetAcc())
    wsFormatValue = pNode->GetWidgetAcc()->GetFormatDataValue(wsValue);

  ToNode(pDstModule)
      ->JSObject()
      ->SetContent(wsValue, wsFormatValue, true, true, true);
}

void CJX_Object::MoveBufferMapData(CXFA_Object* pSrcModule,
                                   CXFA_Object* pDstModule) {
  if (!pSrcModule || !pDstModule)
    return;

  CXFA_Node* pSrcChild = ToNode(pSrcModule)->GetFirstChild();
  CXFA_Node* pDstChild = ToNode(pDstModule)->GetFirstChild();
  while (pSrcChild && pDstChild) {
    MoveBufferMapData(pSrcChild, pDstChild);

    pSrcChild = pSrcChild->GetNextSibling();
    pDstChild = pDstChild->GetNextSibling();
  }
  ToNode(pSrcModule)->JSObject()->MoveBufferMapData(pDstModule);
}

void CJX_Object::OnChanging(XFA_Attribute eAttr, bool bNotify) {
  if (!bNotify || !ToNode(GetXFAObject())->IsInitialized())
    return;

  CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
  if (pNotify)
    pNotify->OnValueChanging(ToNode(GetXFAObject()), eAttr);
}

void CJX_Object::OnChanged(XFA_Attribute eAttr,
                           bool bNotify,
                           bool bScriptModify) {
  if (bNotify && ToNode(GetXFAObject())->IsInitialized())
    ToNode(GetXFAObject())->SendAttributeChangeMessage(eAttr, bScriptModify);
}

void CJX_Object::SetCalcData(std::unique_ptr<CXFA_CalcData> data) {
  calc_data_ = std::move(data);
}

std::unique_ptr<CXFA_CalcData> CJX_Object::ReleaseCalcData() {
  return std::move(calc_data_);
}

void CJX_Object::Script_Attribute_String(CFXJSE_Value* pValue,
                                         bool bSetting,
                                         XFA_Attribute eAttribute) {
  if (!bSetting) {
    pValue->SetString(GetAttribute(eAttribute).UTF8Encode().AsStringView());
    return;
  }

  WideString wsValue = pValue->ToWideString();
  SetAttribute(eAttribute, wsValue.AsStringView(), true);
  if (eAttribute != XFA_Attribute::Use ||
      GetXFAObject()->GetElementType() != XFA_Element::Desc) {
    return;
  }

  CXFA_Node* pTemplateNode =
      ToNode(GetDocument()->GetXFAObject(XFA_HASHCODE_Template));
  CXFA_Proto* pProtoRoot =
      pTemplateNode->GetFirstChildByClass<CXFA_Subform>(XFA_Element::Subform)
          ->GetFirstChildByClass<CXFA_Proto>(XFA_Element::Proto);

  WideString wsID;
  WideString wsSOM;
  if (!wsValue.IsEmpty()) {
    if (wsValue[0] == '#')
      wsID = WideString(wsValue.c_str() + 1, wsValue.GetLength() - 1);
    else
      wsSOM = wsValue;
  }

  CXFA_Node* pProtoNode = nullptr;
  if (!wsSOM.IsEmpty()) {
    XFA_RESOLVENODE_RS resolveNodeRS;
    bool iRet = GetDocument()->GetScriptContext()->ResolveObjects(
        pProtoRoot, wsSOM.AsStringView(), &resolveNodeRS,
        XFA_RESOLVENODE_Children | XFA_RESOLVENODE_Attributes |
            XFA_RESOLVENODE_Properties | XFA_RESOLVENODE_Parent |
            XFA_RESOLVENODE_Siblings,
        nullptr);
    if (iRet && resolveNodeRS.objects.front()->IsNode())
      pProtoNode = resolveNodeRS.objects.front()->AsNode();

  } else if (!wsID.IsEmpty()) {
    pProtoNode = GetDocument()->GetNodeByID(pProtoRoot, wsID.AsStringView());
  }
  if (!pProtoNode)
    return;

  CXFA_Node* pHeadChild = ToNode(GetXFAObject())->GetFirstChild();
  while (pHeadChild) {
    CXFA_Node* pSibling = pHeadChild->GetNextSibling();
    ToNode(GetXFAObject())->RemoveChild(pHeadChild, true);
    pHeadChild = pSibling;
  }

  std::unique_ptr<CXFA_Node> pProtoForm(pProtoNode->CloneTemplateToForm(true));
  pHeadChild = pProtoForm->GetFirstChild();
  while (pHeadChild) {
    CXFA_Node* pSibling = pHeadChild->GetNextSibling();
    pProtoForm->RemoveChild(pHeadChild, true);
    ToNode(GetXFAObject())->InsertChild(pHeadChild, nullptr);
    pHeadChild = pSibling;
  }

  GetDocument()->RemovePurgeNode(pProtoForm.get());
}

void CJX_Object::Script_Attribute_BOOL(CFXJSE_Value* pValue,
                                       bool bSetting,
                                       XFA_Attribute eAttribute) {
  if (bSetting) {
    SetBoolean(eAttribute, pValue->ToBoolean(), true);
    return;
  }
  pValue->SetString(GetBoolean(eAttribute) ? "1" : "0");
}

void CJX_Object::Script_Attribute_Integer(CFXJSE_Value* pValue,
                                          bool bSetting,
                                          XFA_Attribute eAttribute) {
  if (bSetting) {
    SetInteger(eAttribute, pValue->ToInteger(), true);
    return;
  }
  pValue->SetInteger(GetInteger(eAttribute));
}

void CJX_Object::Script_Som_FontColor(CFXJSE_Value* pValue,
                                      bool bSetting,
                                      XFA_Attribute eAttribute) {
  CXFA_Font* font = ToNode(object_.Get())->GetOrCreateFontIfPossible();
  if (!font)
    return;

  if (bSetting) {
    int32_t r;
    int32_t g;
    int32_t b;
    std::tie(r, g, b) = StrToRGB(pValue->ToWideString());
    FX_ARGB color = ArgbEncode(0xff, r, g, b);
    font->SetColor(color);
    return;
  }

  int32_t a;
  int32_t r;
  int32_t g;
  int32_t b;
  std::tie(a, r, g, b) = ArgbDecode(font->GetColor());
  pValue->SetString(ByteString::Format("%d,%d,%d", r, g, b).AsStringView());
}

void CJX_Object::Script_Som_FillColor(CFXJSE_Value* pValue,
                                      bool bSetting,
                                      XFA_Attribute eAttribute) {
  CXFA_Border* border = ToNode(object_.Get())->GetOrCreateBorderIfPossible();
  CXFA_Fill* borderfill = border->GetOrCreateFillIfPossible();
  if (!borderfill)
    return;

  if (bSetting) {
    int32_t r;
    int32_t g;
    int32_t b;
    std::tie(r, g, b) = StrToRGB(pValue->ToWideString());
    FX_ARGB color = ArgbEncode(0xff, r, g, b);
    borderfill->SetColor(color);
    return;
  }

  FX_ARGB color = borderfill->GetColor(false);
  int32_t a;
  int32_t r;
  int32_t g;
  int32_t b;
  std::tie(a, r, g, b) = ArgbDecode(color);
  pValue->SetString(
      WideString::Format(L"%d,%d,%d", r, g, b).UTF8Encode().AsStringView());
}

void CJX_Object::Script_Som_BorderColor(CFXJSE_Value* pValue,
                                        bool bSetting,
                                        XFA_Attribute eAttribute) {
  CXFA_Border* border = ToNode(object_.Get())->GetOrCreateBorderIfPossible();
  int32_t iSize = border->CountEdges();
  if (bSetting) {
    int32_t r = 0;
    int32_t g = 0;
    int32_t b = 0;
    std::tie(r, g, b) = StrToRGB(pValue->ToWideString());
    FX_ARGB rgb = ArgbEncode(100, r, g, b);
    for (int32_t i = 0; i < iSize; ++i) {
      CXFA_Edge* edge = border->GetEdgeIfExists(i);
      if (edge)
        edge->SetColor(rgb);
    }

    return;
  }

  CXFA_Edge* edge = border->GetEdgeIfExists(0);
  FX_ARGB color = edge ? edge->GetColor() : CXFA_Edge::kDefaultColor;
  int32_t a;
  int32_t r;
  int32_t g;
  int32_t b;
  std::tie(a, r, g, b) = ArgbDecode(color);
  pValue->SetString(
      WideString::Format(L"%d,%d,%d", r, g, b).UTF8Encode().AsStringView());
}

void CJX_Object::Script_Som_BorderWidth(CFXJSE_Value* pValue,
                                        bool bSetting,
                                        XFA_Attribute eAttribute) {
  CXFA_Border* border = ToNode(object_.Get())->GetOrCreateBorderIfPossible();
  if (bSetting) {
    CXFA_Edge* edge = border->GetEdgeIfExists(0);
    CXFA_Measurement thickness =
        edge ? edge->GetMSThickness() : CXFA_Measurement(0.5, XFA_Unit::Pt);
    pValue->SetString(thickness.ToString().UTF8Encode().AsStringView());
    return;
  }

  WideString wsThickness = pValue->ToWideString();
  for (int32_t i = 0; i < border->CountEdges(); ++i) {
    CXFA_Edge* edge = border->GetEdgeIfExists(i);
    if (edge)
      edge->SetMSThickness(CXFA_Measurement(wsThickness.AsStringView()));
  }
}

void CJX_Object::Script_Som_Message(CFXJSE_Value* pValue,
                                    bool bSetting,
                                    XFA_SOM_MESSAGETYPE iMessageType) {
  bool bNew = false;
  CXFA_Validate* validate = ToNode(object_.Get())->GetValidateIfExists();
  if (!validate) {
    validate = ToNode(object_.Get())->GetOrCreateValidateIfPossible();
    bNew = true;
  }

  if (bSetting) {
    if (validate) {
      switch (iMessageType) {
        case XFA_SOM_ValidationMessage:
          validate->SetScriptMessageText(pValue->ToWideString());
          break;
        case XFA_SOM_FormatMessage:
          validate->SetFormatMessageText(pValue->ToWideString());
          break;
        case XFA_SOM_MandatoryMessage:
          validate->SetNullMessageText(pValue->ToWideString());
          break;
        default:
          break;
      }
    }

    if (!bNew) {
      CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
      if (!pNotify)
        return;

      pNotify->AddCalcValidate(ToNode(GetXFAObject()));
    }
    return;
  }

  if (!validate) {
    // TODO(dsinclair): Better error message?
    ThrowInvalidPropertyException();
    return;
  }

  WideString wsMessage;
  switch (iMessageType) {
    case XFA_SOM_ValidationMessage:
      wsMessage = validate->GetScriptMessageText();
      break;
    case XFA_SOM_FormatMessage:
      wsMessage = validate->GetFormatMessageText();
      break;
    case XFA_SOM_MandatoryMessage:
      wsMessage = validate->GetNullMessageText();
      break;
    default:
      break;
  }
  pValue->SetString(wsMessage.UTF8Encode().AsStringView());
}

void CJX_Object::Script_Som_ValidationMessage(CFXJSE_Value* pValue,
                                              bool bSetting,
                                              XFA_Attribute eAttribute) {
  Script_Som_Message(pValue, bSetting, XFA_SOM_ValidationMessage);
}

void CJX_Object::Script_Som_MandatoryMessage(CFXJSE_Value* pValue,
                                             bool bSetting,
                                             XFA_Attribute eAttribute) {
  Script_Som_Message(pValue, bSetting, XFA_SOM_MandatoryMessage);
}

void CJX_Object::Script_Field_Length(CFXJSE_Value* pValue,
                                     bool bSetting,
                                     XFA_Attribute eAttribute) {
  if (bSetting) {
    ThrowInvalidPropertyException();
    return;
  }

  CXFA_Node* node = ToNode(object_.Get());
  if (!node->IsWidgetReady()) {
    pValue->SetInteger(0);
    return;
  }
  pValue->SetInteger(node->GetWidgetAcc()->CountChoiceListItems(true));
}

void CJX_Object::Script_Som_DefaultValue(CFXJSE_Value* pValue,
                                         bool bSetting,
                                         XFA_Attribute /* unused */) {
  XFA_Element eType = ToNode(GetXFAObject())->GetElementType();

  // TODO(dsinclair): This should look through the properties on the node to see
  // if defaultValue is defined and, if so, call that one. Just have to make
  // sure that those defaultValue calls don't call back to this one ....
  if (eType == XFA_Element::Field) {
    static_cast<CJX_Field*>(this)->defaultValue(pValue, bSetting,
                                                XFA_Attribute::Unknown);
    return;
  }
  if (eType == XFA_Element::Draw) {
    static_cast<CJX_Draw*>(this)->defaultValue(pValue, bSetting,
                                               XFA_Attribute::Unknown);
    return;
  }
  if (eType == XFA_Element::Boolean) {
    static_cast<CJX_Boolean*>(this)->defaultValue(pValue, bSetting,
                                                  XFA_Attribute::Unknown);
    return;
  }

  if (bSetting) {
    WideString wsNewValue;
    if (pValue && !(pValue->IsNull() || pValue->IsUndefined()))
      wsNewValue = pValue->ToWideString();

    WideString wsFormatValue(wsNewValue);
    CXFA_Node* pContainerNode = nullptr;
    if (ToNode(GetXFAObject())->GetPacketType() == XFA_PacketType::Datasets) {
      WideString wsPicture;
      for (const auto& pFormNode : *(ToNode(GetXFAObject())->GetBindItems())) {
        if (!pFormNode || pFormNode->HasRemovedChildren())
          continue;

        pContainerNode = pFormNode->GetContainerNode();
        if (pContainerNode && pContainerNode->GetWidgetAcc()) {
          wsPicture = pContainerNode->GetWidgetAcc()->GetPictureContent(
              XFA_VALUEPICTURE_DataBind);
        }
        if (!wsPicture.IsEmpty())
          break;

        pContainerNode = nullptr;
      }
    } else if (ToNode(GetXFAObject())->GetPacketType() ==
               XFA_PacketType::Form) {
      pContainerNode = ToNode(GetXFAObject())->GetContainerNode();
    }

    if (pContainerNode && pContainerNode->GetWidgetAcc())
      wsFormatValue =
          pContainerNode->GetWidgetAcc()->GetFormatDataValue(wsNewValue);

    SetContent(wsNewValue, wsFormatValue, true, true, true);
    return;
  }

  WideString content = GetContent(true);
  if (content.IsEmpty() && eType != XFA_Element::Text &&
      eType != XFA_Element::SubmitUrl) {
    pValue->SetNull();
  } else if (eType == XFA_Element::Integer) {
    pValue->SetInteger(FXSYS_wtoi(content.c_str()));
  } else if (eType == XFA_Element::Float || eType == XFA_Element::Decimal) {
    CFX_Decimal decimal(content.AsStringView());
    pValue->SetFloat((float)(double)decimal);
  } else {
    pValue->SetString(content.UTF8Encode().AsStringView());
  }
}

void CJX_Object::Script_Som_DefaultValue_Read(CFXJSE_Value* pValue,
                                              bool bSetting,
                                              XFA_Attribute eAttribute) {
  if (bSetting) {
    ThrowInvalidPropertyException();
    return;
  }

  WideString content = GetContent(true);
  if (content.IsEmpty()) {
    pValue->SetNull();
    return;
  }
  pValue->SetString(content.UTF8Encode().AsStringView());
}

void CJX_Object::Script_Som_DataNode(CFXJSE_Value* pValue,
                                     bool bSetting,
                                     XFA_Attribute eAttribute) {
  if (bSetting) {
    ThrowInvalidPropertyException();
    return;
  }

  CXFA_Node* pDataNode = ToNode(GetXFAObject())->GetBindData();
  if (!pDataNode) {
    pValue->SetNull();
    return;
  }

  pValue->Assign(
      GetDocument()->GetScriptContext()->GetJSValueFromMap(pDataNode));
}

void CJX_Object::Script_Som_Mandatory(CFXJSE_Value* pValue,
                                      bool bSetting,
                                      XFA_Attribute eAttribute) {
  CXFA_Validate* validate =
      ToNode(object_.Get())->GetOrCreateValidateIfPossible();
  if (!validate)
    return;

  if (bSetting) {
    validate->SetNullTest(pValue->ToWideString());
    return;
  }

  WideString str = CXFA_Node::AttributeEnumToName(validate->GetNullTest());
  pValue->SetString(str.UTF8Encode().AsStringView());
}

void CJX_Object::Script_Som_InstanceIndex(CFXJSE_Value* pValue,
                                          bool bSetting,
                                          XFA_Attribute eAttribute) {
  if (!bSetting) {
    pValue->SetInteger(Subform_and_SubformSet_InstanceIndex());
    return;
  }

  int32_t iTo = pValue->ToInteger();
  int32_t iFrom = Subform_and_SubformSet_InstanceIndex();
  CXFA_Node* pManagerNode = nullptr;
  for (CXFA_Node* pNode = ToNode(GetXFAObject())->GetPrevSibling(); pNode;
       pNode = pNode->GetPrevSibling()) {
    if (pNode->GetElementType() == XFA_Element::InstanceManager) {
      pManagerNode = pNode;
      break;
    }
  }
  if (!pManagerNode)
    return;

  auto* mgr = static_cast<CJX_InstanceManager*>(pManagerNode->JSObject());
  mgr->MoveInstance(iTo, iFrom);
  CXFA_FFNotify* pNotify = GetDocument()->GetNotify();
  if (!pNotify)
    return;

  CXFA_Node* pToInstance = pManagerNode->GetItemIfExists(iTo);
  if (pToInstance && pToInstance->GetElementType() == XFA_Element::Subform) {
    pNotify->RunSubformIndexChange(pToInstance);
  }

  CXFA_Node* pFromInstance = pManagerNode->GetItemIfExists(iFrom);
  if (pFromInstance &&
      pFromInstance->GetElementType() == XFA_Element::Subform) {
    pNotify->RunSubformIndexChange(pFromInstance);
  }
}

void CJX_Object::Script_Subform_InstanceManager(CFXJSE_Value* pValue,
                                                bool bSetting,
                                                XFA_AttributeEnum eAttribute) {
  if (bSetting) {
    ThrowInvalidPropertyException();
    return;
  }

  WideString wsName = GetCData(XFA_Attribute::Name);
  CXFA_Node* pInstanceMgr = nullptr;
  for (CXFA_Node* pNode = ToNode(GetXFAObject())->GetPrevSibling(); pNode;
       pNode = pNode->GetPrevSibling()) {
    if (pNode->GetElementType() == XFA_Element::InstanceManager) {
      WideString wsInstMgrName =
          pNode->JSObject()->GetCData(XFA_Attribute::Name);
      if (wsInstMgrName.GetLength() >= 1 && wsInstMgrName[0] == '_' &&
          wsInstMgrName.Right(wsInstMgrName.GetLength() - 1) == wsName) {
        pInstanceMgr = pNode;
      }
      break;
    }
  }
  if (!pInstanceMgr) {
    pValue->SetNull();
    return;
  }

  pValue->Assign(
      GetDocument()->GetScriptContext()->GetJSValueFromMap(pInstanceMgr));
}

void CJX_Object::Script_SubmitFormat_Mode(CFXJSE_Value* pValue,
                                          bool bSetting,
                                          XFA_Attribute eAttribute) {}

void CJX_Object::Script_Form_Checksum(CFXJSE_Value* pValue,
                                      bool bSetting,
                                      XFA_Attribute eAttribute) {
  if (bSetting) {
    SetAttribute(XFA_Attribute::Checksum, pValue->ToWideString().AsStringView(),
                 false);
    return;
  }

  Optional<WideString> checksum = TryAttribute(XFA_Attribute::Checksum, false);
  pValue->SetString(checksum ? checksum->UTF8Encode().AsStringView() : "");
}

void CJX_Object::Script_ExclGroup_ErrorText(CFXJSE_Value* pValue,
                                            bool bSetting,
                                            XFA_Attribute eAttribute) {
  if (bSetting)
    ThrowInvalidPropertyException();
}