Pass objects instead of strings for undo/redo records.

xfa/fwl/basewidget/fwl_editimp.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_FWL_BASEWIDGET_FWL_EDITIMP_H_
 #define XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_
 
+#include <deque>
 #include <memory>
 #include <vector>
 
 #include "xfa/fee/ifde_txtedtengine.h"
 #include "xfa/fwl/basewidget/ifwl_scrollbar.h"
 #include "xfa/fwl/core/fwl_widgetimp.h"
 #include "xfa/fxgraphics/cfx_path.h"
 
+class CFWL_EditImp;
+class CFWL_EditImpDelegate;
 class CFWL_MsgActivate;
 class CFWL_MsgDeactivate;
 class CFWL_MsgMouse;
+class CFWL_WidgetImpDelegate;
 class CFWL_WidgetImpProperties;
-class CFWL_WidgetImpDelegate;
+class IFDE_TxtEdtDoRecord;
 class IFWL_Caret;
-class CFWL_EditImp;
-class CFWL_EditImpDelegate;
 
 class CFWL_EditImp : public CFWL_WidgetImp {
  public:
   CFWL_EditImp(const CFWL_WidgetImpProperties& properties, IFWL_Widget* pOuter);
   ~CFWL_EditImp() override;
 
   // CFWL_WidgetImp:
   FWL_Error GetClassName(CFX_WideString& wsClass) const override;
   FWL_Type GetClassID() const override;
   FWL_Error Initialize() override;
@@ skipping 28 matching lines @@
   virtual FWL_Error DeleteSelections();
   virtual FWL_Error DeleteRange(int32_t nStart, int32_t nCount = -1);
   virtual FWL_Error Replace(int32_t nStart,
                             int32_t nLen,
                             const CFX_WideStringC& wsReplace);
   virtual FWL_Error DoClipboard(int32_t iCmd);
   virtual FX_BOOL Copy(CFX_WideString& wsCopy);
   virtual FX_BOOL Cut(CFX_WideString& wsCut);
   virtual FX_BOOL Paste(const CFX_WideString& wsPaste);
   virtual FX_BOOL Delete();
-  virtual FX_BOOL Redo(const CFX_ByteStringC& bsRecord);
-  virtual FX_BOOL Undo(const CFX_ByteStringC& bsRecord);
+  virtual FX_BOOL Redo(const IFDE_TxtEdtDoRecord* pRecord);
+  virtual FX_BOOL Undo(const IFDE_TxtEdtDoRecord* pRecord);
   virtual FX_BOOL Undo();
   virtual FX_BOOL Redo();
   virtual FX_BOOL CanUndo();
   virtual FX_BOOL CanRedo();
   virtual FWL_Error SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant);
   virtual FWL_Error SetOuter(IFWL_Widget* pOuter);
   virtual FWL_Error SetNumberRange(int32_t iMin, int32_t iMax);
   virtual FWL_Error SetBackgroundColor(uint32_t color);
   virtual FWL_Error SetFont(const CFX_WideString& wsFont, FX_FLOAT fSize);
 
   void On_CaretChanged(CFDE_TxtEdtEngine* pEdit,
                        int32_t nPage,
                        FX_BOOL bVisible = true);
   void On_TextChanged(CFDE_TxtEdtEngine* pEdit,
                       FDE_TXTEDT_TEXTCHANGE_INFO& ChangeInfo);
   void On_SelChanged(CFDE_TxtEdtEngine* pEdit);
   FX_BOOL On_PageLoad(CFDE_TxtEdtEngine* pEdit,
                       int32_t nPageIndex,
                       int32_t nPurpose);
   FX_BOOL On_PageUnload(CFDE_TxtEdtEngine* pEdit,
                         int32_t nPageIndex,
                         int32_t nPurpose);
-  void On_AddDoRecord(CFDE_TxtEdtEngine* pEdit,
-                      const CFX_ByteStringC& bsDoRecord);
+  void On_AddDoRecord(CFDE_TxtEdtEngine* pEdit, IFDE_TxtEdtDoRecord* pRecord);
   FX_BOOL On_Validate(CFDE_TxtEdtEngine* pEdit, CFX_WideString& wsText);
   void SetScrollOffset(FX_FLOAT fScrollOffset);
   FX_BOOL GetSuggestWords(CFX_PointF pointf,
                           std::vector<CFX_ByteString>& sSuggest);
   FX_BOOL ReplaceSpellCheckWord(CFX_PointF pointf,
                                 const CFX_ByteStringC& bsReplace);
 
  protected:
+  friend class CFWL_TxtEdtEventSink;
+  friend class CFWL_EditImpDelegate;
+
   void DrawTextBk(CFX_Graphics* pGraphics,
                   IFWL_ThemeProvider* pTheme,
                   const CFX_Matrix* pMatrix = NULL);
   void DrawContent(CFX_Graphics* pGraphics,
                    IFWL_ThemeProvider* pTheme,
                    const CFX_Matrix* pMatrix = NULL);
   void UpdateEditEngine();
   void UpdateEditParams();
   void UpdateEditLayout();
   FX_BOOL UpdateOffset();
   FX_BOOL UpdateOffset(IFWL_ScrollBar* pScrollBar, FX_FLOAT fPosChanged);
   void UpdateVAlignment();
   void UpdateCaret();
   IFWL_ScrollBar* UpdateScroll();
   void Layout();
   void LayoutScrollBar();
   void DeviceToEngine(CFX_PointF& pt);
   void InitScrollBar(FX_BOOL bVert = TRUE);
   void InitEngine();
   virtual void ShowCaret(FX_BOOL bVisible, CFX_RectF* pRect = NULL);
   FX_BOOL ValidateNumberChar(FX_WCHAR cNum);
   void InitCaret();
   void ClearRecord();
   FX_BOOL IsShowScrollBar(FX_BOOL bVert);
   FX_BOOL IsContentHeightOverflow();
-  int32_t AddDoRecord(const CFX_ByteStringC& bsDoRecord);
+  int32_t AddDoRecord(IFDE_TxtEdtDoRecord* pRecord);
   void ProcessInsertError(int32_t iError);
 
   void DrawSpellCheck(CFX_Graphics* pGraphics,
                       const CFX_Matrix* pMatrix = NULL);
   void AddSpellCheckObj(CFX_Path& PathData,
                         int32_t nStart,
                         int32_t nCount,
                         FX_FLOAT fOffSetX,
                         FX_FLOAT fOffSetY);
   int32_t GetWordAtPoint(CFX_PointF pointf, int32_t& nCount);
+
   CFX_RectF m_rtClient;
   CFX_RectF m_rtEngine;
   CFX_RectF m_rtStatic;
   FX_FLOAT m_fVAlignOffset;
   FX_FLOAT m_fScrollOffsetX;
   FX_FLOAT m_fScrollOffsetY;
   CFDE_TxtEdtEngine* m_pEdtEngine;
   FX_BOOL m_bLButtonDown;
   int32_t m_nSelStart;
   int32_t m_nLimit;
   FX_FLOAT m_fSpaceAbove;
   FX_FLOAT m_fSpaceBelow;
   FX_FLOAT m_fFontSize;
   FX_ARGB m_argbSel;
   FX_BOOL m_bSetRange;
   int32_t m_iMin;
   int32_t m_iMax;
   std::unique_ptr<IFWL_ScrollBar> m_pVertScrollBar;
   std::unique_ptr<IFWL_ScrollBar> m_pHorzScrollBar;
   std::unique_ptr<IFWL_Caret> m_pCaret;
   CFX_WideString m_wsCache;
-  friend class CFWL_TxtEdtEventSink;
-  friend class CFWL_EditImpDelegate;
   uint32_t m_backColor;
   FX_BOOL m_updateBackColor;
   CFX_WideString m_wsFont;
-  CFX_ByteStringArray m_RecordArr;
+  std::deque<std::unique_ptr<IFDE_TxtEdtDoRecord>> m_DoRecords;
   int32_t m_iCurRecord;
   int32_t m_iMaxRecord;
 };
 
 class CFWL_EditImpDelegate : public CFWL_WidgetImpDelegate {
  public:
   CFWL_EditImpDelegate(CFWL_EditImp* pOwner);
   void OnProcessMessage(CFWL_Message* pMessage) override;
   void OnProcessEvent(CFWL_Event* pEvent) override;
   void OnDrawWidget(CFX_Graphics* pGraphics,
                     const CFX_Matrix* pMatrix = NULL) override;
 
  protected:
   void DoActivate(CFWL_MsgActivate* pMsg);
   void DoDeactivate(CFWL_MsgDeactivate* pMsg);
   void DoButtonDown(CFWL_MsgMouse* pMsg);
   void OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet = TRUE);
   void OnLButtonDown(CFWL_MsgMouse* pMsg);
   void OnLButtonUp(CFWL_MsgMouse* pMsg);
   void OnButtonDblClk(CFWL_MsgMouse* pMsg);
   void OnMouseMove(CFWL_MsgMouse* pMsg);
   void OnKeyDown(CFWL_MsgKey* pMsg);
   void OnChar(CFWL_MsgKey* pMsg);
   FX_BOOL OnScroll(IFWL_ScrollBar* pScrollBar, uint32_t dwCode, FX_FLOAT fPos);
   void DoCursor(CFWL_MsgMouse* pMsg);
   CFWL_EditImp* m_pOwner;
 };
 
 #endif  // XFA_FWL_BASEWIDGET_FWL_EDITIMP_H_