Simplify XFA event handling.

xfa/fxfa/include/fxfa.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 XFA_FXFA_INCLUDE_FXFA_H_
 #define XFA_FXFA_INCLUDE_FXFA_H_
 
 #include <vector>
@@ skipping 261 matching lines @@
 #define XFA_PRINTOPT_CanCancel 0x00000002
 #define XFA_PRINTOPT_ShrinkPage 0x00000004
 #define XFA_PRINTOPT_AsImage 0x00000008
 #define XFA_PRINTOPT_ReverseOrder 0x00000010
 #define XFA_PRINTOPT_PrintAnnot 0x00000020
 #define XFA_PAGEVIEWEVENT_PostAdded 1
 #define XFA_PAGEVIEWEVENT_PostRemoved 3
 #define XFA_PAGEVIEWEVENT_StopLayout 4
 #define XFA_WIDGETEVENT_PostAdded 2
 #define XFA_WIDGETEVENT_PreRemoved 3
-#define XFA_WIDGETEVENT_PostContentChanged 6
-#define XFA_WIDGETEVENT_ListItemRemoved 7
-#define XFA_WIDGETEVENT_ListItemAdded 8
-#define XFA_WIDGETEVENT_AccessChanged 9
+
 class IXFA_DocProvider {
  public:
   virtual ~IXFA_DocProvider() {}
 
   virtual void SetChangeMark(CXFA_FFDoc* hDoc) = 0;
   virtual void InvalidateRect(CXFA_FFPageView* pPageView,
                               const CFX_RectF& rt,
                               uint32_t dwFlags = 0) = 0;
   virtual void DisplayCaret(CXFA_FFWidget* hWidget,
                             FX_BOOL bVisible,
                             const CFX_RectF* pRtAnchor) = 0;
   virtual FX_BOOL GetPopupPos(CXFA_FFWidget* hWidget,
                               FX_FLOAT fMinPopup,
                               FX_FLOAT fMaxPopup,
                               const CFX_RectF& rtAnchor,
                               CFX_RectF& rtPopup) = 0;
   virtual FX_BOOL PopupMenu(CXFA_FFWidget* hWidget,
                             CFX_PointF ptPopup,
                             const CFX_RectF* pRectExclude = NULL) = 0;
   virtual void PageViewEvent(CXFA_FFPageView* pPageView, uint32_t dwFlags) = 0;
   virtual void WidgetEvent(CXFA_FFWidget* hWidget,
                            CXFA_WidgetAcc* pWidgetData,
-                           uint32_t dwEvent,
-                           void* pParam = NULL,
-                           void* pAdditional = NULL) = 0;
+                           uint32_t dwEvent) = 0;
   virtual FX_BOOL RenderCustomWidget(CXFA_FFWidget* hWidget,
                                      CFX_Graphics* pGS,
                                      CFX_Matrix* pMatrix,
                                      const CFX_RectF& rtUI) {
     return FALSE;
   }
   virtual int32_t CountPages(CXFA_FFDoc* hDoc) = 0;
   virtual int32_t GetCurrentPage(CXFA_FFDoc* hDoc) = 0;
   virtual void SetCurrentPage(CXFA_FFDoc* hDoc, int32_t iCurPage) = 0;
   virtual FX_BOOL IsCalculationsEnabled(CXFA_FFDoc* hDoc) = 0;
@@ skipping 225 matching lines @@
   virtual CXFA_FFWidget* MoveToNext() = 0;
   virtual CXFA_FFWidget* MoveToPrevious() = 0;
   virtual CXFA_FFWidget* GetCurrentWidget() = 0;
   virtual FX_BOOL SetCurrentWidget(CXFA_FFWidget* hWidget) = 0;
 
  protected:
   ~IXFA_WidgetIterator() {}
 };
 
 #endif  // XFA_FXFA_INCLUDE_FXFA_H_