Convert CPDFSDK_PageView to have a CPDFSDK_FormFillEnvironment

fpdfsdk/cpdfsdk_widgethandler.cpp

 // Copyright 2016 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 "fpdfsdk/cpdfsdk_widgethandler.h"
 
 #include <memory>
 #include <vector>
@@ skipping 233 matching lines @@
   int nFieldType = pWidget->GetFieldType();
   if (nFieldType == FIELDTYPE_TEXTFIELD || nFieldType == FIELDTYPE_COMBOBOX) {
     FX_BOOL bFormatted = FALSE;
     CFX_WideString sValue = pWidget->OnFormat(bFormatted);
     if (bFormatted && nFieldType == FIELDTYPE_COMBOBOX)
       pWidget->ResetAppearance(&sValue, FALSE);
   }
 
 #ifdef PDF_ENABLE_XFA
   CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
-  CPDFSDK_Document* pSDKDoc = pPageView->GetSDKDocument();
-  CPDFXFA_Document* pDoc = pSDKDoc->GetXFADocument();
+  CPDFXFA_Document* pDoc =
+      pPageView->GetFormFillEnv()->GetSDKDocument()->GetXFADocument();
   if (pDoc->GetDocType() == DOCTYPE_STATIC_XFA) {
     if (!pWidget->IsAppearanceValid() && !pWidget->GetValue().IsEmpty())
       pWidget->ResetAppearance(FALSE);
   }
 #endif  // PDF_ENABLE_XFA
   if (m_pFormFiller)
     m_pFormFiller->OnLoad(pAnnot);
 }
 
 FX_BOOL CPDFSDK_WidgetHandler::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot,
@@ skipping 30 matching lines @@
 
 FX_BOOL CPDFSDK_WidgetHandler::HitTest(CPDFSDK_PageView* pPageView,
                                        CPDFSDK_Annot* pAnnot,
                                        const CFX_FloatPoint& point) {
   ASSERT(pPageView);
   ASSERT(pAnnot);
 
   CFX_FloatRect rect = GetViewBBox(pPageView, pAnnot);
   return rect.Contains(point.x, point.y);
 }