bool CPDFSDK_XFAWidgetHandler::OnXFAChangedFocus(
    CPDFSDK_Annot::ObservedPtr* pOldAnnot,
    CPDFSDK_Annot::ObservedPtr* pNewAnnot) {
  CXFA_FFWidgetHandler* pWidgetHandler = nullptr;
  if (*pOldAnnot)
    pWidgetHandler = GetXFAWidgetHandler(pOldAnnot->Get());
  else if (*pNewAnnot)
    pWidgetHandler = GetXFAWidgetHandler(pNewAnnot->Get());

  if (!pWidgetHandler)
    return true;

  CXFA_FFWidget* hWidget = *pNewAnnot ? (*pNewAnnot)->GetXFAWidget() : nullptr;
  if (!hWidget)
    return true;

  CXFA_FFPageView* pXFAPageView = hWidget->GetPageView();
  if (!pXFAPageView)
    return true;

  bool bRet = pXFAPageView->GetDocView()->SetFocus(hWidget);
  if (pXFAPageView->GetDocView()->GetFocusWidget() == hWidget)
    bRet = true;

  return bRet;
}
FX_BOOL CPDFSDK_XFAAnnotHandler::OnXFAChangedFocus(CPDFSDK_Annot* pOldAnnot,
                                                   CPDFSDK_Annot* pNewAnnot) {
  CXFA_FFWidgetHandler* pWidgetHandler = nullptr;

  if (pOldAnnot)
    pWidgetHandler = GetXFAWidgetHandler(pOldAnnot);
  else if (pNewAnnot)
    pWidgetHandler = GetXFAWidgetHandler(pNewAnnot);

  if (pWidgetHandler) {
    FX_BOOL bRet = TRUE;
    CXFA_FFWidget* hWidget = pNewAnnot ? pNewAnnot->GetXFAWidget() : nullptr;
    if (hWidget) {
      CXFA_FFPageView* pXFAPageView = hWidget->GetPageView();
      if (pXFAPageView) {
        bRet = pXFAPageView->GetDocView()->SetFocus(hWidget);
        if (pXFAPageView->GetDocView()->GetFocusWidget() == hWidget)
          bRet = TRUE;
      }
    }
    return bRet;
  }

  return TRUE;
}
DLLEXPORT int STDCALL FPDFPage_HasFormFieldAtPoint(FPDF_FORMHANDLE hHandle,
                                                   FPDF_PAGE page,
                                                   double page_x,
                                                   double page_y) {
  if (!hHandle)
    return -1;
  CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
  if (pPage) {
    CPDF_InterForm interform(pPage->m_pDocument);
    CPDF_FormControl* pFormCtrl =
        interform.GetControlAtPoint(pPage, static_cast<FX_FLOAT>(page_x),
                                    static_cast<FX_FLOAT>(page_y), nullptr);
    if (!pFormCtrl)
      return -1;
    CPDF_FormField* pFormField = pFormCtrl->GetField();
    return pFormField ? pFormField->GetFieldType() : -1;
  }

#ifdef PDF_ENABLE_XFA
  CPDFXFA_Page* pXFAPage = UnderlyingFromFPDFPage(page);
  if (!pXFAPage)
    return -1;

  CXFA_FFPageView* pPageView = pXFAPage->GetXFAPageView();
  if (!pPageView)
    return -1;

  CXFA_FFDocView* pDocView = pPageView->GetDocView();
  if (!pDocView)
    return -1;

  CXFA_FFWidgetHandler* pWidgetHandler = pDocView->GetWidgetHandler();
  if (!pWidgetHandler)
    return -1;

  std::unique_ptr<IXFA_WidgetIterator> pWidgetIterator(
      pPageView->CreateWidgetIterator(XFA_TRAVERSEWAY_Form,
                                      XFA_WidgetStatus_Viewable));
  if (!pWidgetIterator)
    return -1;

  CXFA_FFWidget* pXFAAnnot = pWidgetIterator->MoveToNext();
  while (pXFAAnnot) {
    CFX_RectF rcBBox;
    pXFAAnnot->GetBBox(rcBBox, 0);
    CFX_FloatRect rcWidget(rcBBox.left, rcBBox.top, rcBBox.left + rcBBox.width,
                           rcBBox.top + rcBBox.height);
    rcWidget.left -= 1.0f;
    rcWidget.right += 1.0f;
    rcWidget.bottom -= 1.0f;
    rcWidget.top += 1.0f;

    if (rcWidget.Contains(static_cast<FX_FLOAT>(page_x),
                          static_cast<FX_FLOAT>(page_y))) {
      return FPDF_FORMFIELD_XFA;
    }
    pXFAAnnot = pWidgetIterator->MoveToNext();
  }
#endif  // PDF_ENABLE_XFA
  return -1;
}