Convert CPDFSDK_InterForm to take a CPDFSDK_FormFillEnvironment

fpdfsdk/javascript/Field.cpp

 // 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 "fpdfsdk/javascript/Field.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 277 matching lines @@
     }
   }
 
   if (bRefresh) {
     // Refresh the widget list. The calls in |bResetAP| may have caused widgets
     // to be removed from the list. We need to call |GetWidgets| again to be
     // sure none of the widgets have been deleted.
     std::vector<CPDFSDK_Widget*> widgets;
     pInterForm->GetWidgets(pFormField, &widgets);
 
+    // TODO(dsinclair): Determine if all widgets share the same
+    // CPDFSDK_InterForm. If that's the case, we can move the code to
+    // |GetSDKDocument| out of the loop.
     for (CPDFSDK_Widget* pWidget : widgets) {
-      CPDFSDK_Document* pDoc = pWidget->GetInterForm()->GetDocument();
-      pDoc->UpdateAllViews(nullptr, pWidget);
+      pWidget->GetInterForm()
+          ->GetFormFillEnv()
+          ->GetSDKDocument()
+          ->UpdateAllViews(nullptr, pWidget);
     }
   }
 
   if (bChangeMark)
     pDocument->SetChangeMark();
 }
 
 void Field::UpdateFormControl(CPDFSDK_Document* pDocument,
                               CPDF_FormControl* pFormControl,
                               FX_BOOL bChangeMark,
@@ skipping 12 matching lines @@
         FX_BOOL bFormatted = FALSE;
         CFX_WideString sValue = pWidget->OnFormat(bFormatted);
         pWidget->ResetAppearance(bFormatted ? &sValue : nullptr, FALSE);
       } else {
         pWidget->ResetAppearance(nullptr, FALSE);
       }
     }
 
     if (bRefresh) {
       CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm();
-      CPDFSDK_Document* pDoc = pInterForm->GetDocument();
-      pDoc->UpdateAllViews(nullptr, pWidget);
+      pInterForm->GetFormFillEnv()->GetSDKDocument()->UpdateAllViews(nullptr,
+                                                                     pWidget);
     }
   }
 
   if (bChangeMark)
     pDocument->SetChangeMark();
 }
 
 CPDFSDK_Widget* Field::GetWidget(CPDFSDK_Document* pDocument,
                                  CPDF_FormControl* pFormControl,
                                  bool createIfNeeded) {
@@ skipping 3147 matching lines @@
   }
 }
 
 void Field::AddField(CPDFSDK_Document* pDocument,
                      int nPageIndex,
                      int nFieldType,
                      const CFX_WideString& sName,
                      const CFX_FloatRect& rcCoords) {
   // Not supported.
 }