fpdfsdk/ differences with XFA (for didactic purposes only).

fpdfsdk/include/formfiller/FFL_FormFiller.h

 // 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
 
 #ifndef FPDFSDK_INCLUDE_FORMFILLER_FFL_FORMFILLER_H_
 #define FPDFSDK_INCLUDE_FORMFILLER_FFL_FORMFILLER_H_
 
 #include "FFL_IFormFiller.h"
@@ skipping 102 matching lines @@
   CPDF_Point WndtoPWL(CPDFSDK_PageView* pPageView, const CPDF_Point& pt);
   CPDF_Rect FFLtoWnd(CPDFSDK_PageView* pPageView, const CPDF_Rect& rect);
 
   void SetWindowRect(CPDFSDK_PageView* pPageView, const CPDF_Rect& rcWindow);
   CPDF_Rect GetWindowRect(CPDFSDK_PageView* pPageView);
 
   FX_BOOL CommitData(CPDFSDK_PageView* pPageView, FX_UINT nFlag);
   virtual FX_BOOL IsDataChanged(CPDFSDK_PageView* pPageView);
   virtual void SaveData(CPDFSDK_PageView* pPageView);
 
+#ifdef PDF_ENABLE_XFA
+  virtual FX_BOOL IsFieldFull(CPDFSDK_PageView* pPageView);
+
+#endif
   CPWL_Wnd* GetPDFWindow(CPDFSDK_PageView* pPageView, FX_BOOL bNew);
   void DestroyPDFWindow(CPDFSDK_PageView* pPageView);
   void EscapeFiller(CPDFSDK_PageView* pPageView, FX_BOOL bDestroyPDFWindow);
 
   virtual PWL_CREATEPARAM GetCreateParam();
   virtual CPWL_Wnd* NewPDFWindow(const PWL_CREATEPARAM& cp,
                                  CPDFSDK_PageView* pPageView) = 0;
   virtual CPDF_Rect GetFocusBox(CPDFSDK_PageView* pPageView);
 
   FX_BOOL IsValid() const;
@@ skipping 52 matching lines @@
                       CFX_RenderDevice* pDevice,
                       CPDF_Matrix* pUser2Device,
                       FX_DWORD dwFlags) override;
 
  protected:
   FX_BOOL m_bMouseIn;
   FX_BOOL m_bMouseDown;
 };
 
 #endif  // FPDFSDK_INCLUDE_FORMFILLER_FFL_FORMFILLER_H_