Remove some IFX_* wrappers.

fpdfsdk/pdfwindow/PWL_EditCtrl.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_PDFWINDOW_PWL_EDITCTRL_H_
 #define FPDFSDK_PDFWINDOW_PWL_EDITCTRL_H_
 
 #include "core/fxcrt/include/fx_string.h"
 #include "fpdfsdk/fxedit/include/fx_edit.h"
 #include "fpdfsdk/pdfwindow/PWL_Wnd.h"
 
+class CFX_Edit;
 class CPWL_Caret;
 class CPWL_Edit;
 class CPWL_EditCtrl;
-class IFX_Edit;
 class IPWL_Edit_Notify;
+struct CPVT_SecProps;
 struct CPVT_WordPlace;
+struct CPVT_WordProps;
+struct CPVT_WordRange;
 
 enum PWL_EDIT_ALIGNFORMAT_H { PEAH_LEFT = 0, PEAH_MIDDLE, PEAH_RIGHT };
 
 enum PWL_EDIT_ALIGNFORMAT_V { PEAV_TOP = 0, PEAV_CENTER, PEAV_BOTTOM };
 
 class IPWL_Edit_Notify {
  public:
   virtual ~IPWL_Edit_Notify() {}
   // when the position of caret is changed in edit
   virtual void OnCaretMove(int32_t x1, int32_t y1, int32_t x2, int32_t y2) {}
@@ skipping 15 matching lines @@
                         const CPVT_WordPlace& oldplace) {}
   virtual void OnClear(const CPVT_WordPlace& place,
                        const CPVT_WordPlace& oldplace) {}
   virtual void OnInsertText(const CPVT_WordPlace& place,
                             const CPVT_WordPlace& oldplace) {}
   virtual void OnSetText(const CPVT_WordPlace& place,
                          const CPVT_WordPlace& oldplace) {}
   virtual void OnAddUndo(CPWL_Edit* pEdit) {}
 };
 
-class CPWL_EditCtrl : public CPWL_Wnd, public IFX_Edit_Notify {
+class CPWL_EditCtrl : public CPWL_Wnd {
   friend class CPWL_Edit_Notify;
 
  public:
   CPWL_EditCtrl();
   ~CPWL_EditCtrl() override;
 
   CFX_FloatRect GetContentRect() const;
   void GetCaretPos(int32_t& x, int32_t& y) const;
 
   CFX_WideString GetText() const;
@@ skipping 45 matching lines @@
   void OnNotify(CPWL_Wnd* pWnd,
                 uint32_t msg,
                 intptr_t wParam = 0,
                 intptr_t lParam = 0) override;
   void CreateChildWnd(const PWL_CREATEPARAM& cp) override;
   void RePosChildWnd() override;
   void SetFontSize(FX_FLOAT fFontSize) override;
   FX_FLOAT GetFontSize() const override;
   void SetCursor() override;
 
- protected:
-  // IFX_Edit_Notify
-  void IOnSetScrollInfoX(FX_FLOAT fPlateMin,
-                         FX_FLOAT fPlateMax,
-                         FX_FLOAT fContentMin,
-                         FX_FLOAT fContentMax,
-                         FX_FLOAT fSmallStep,
-                         FX_FLOAT fBigStep) override {}
   void IOnSetScrollInfoY(FX_FLOAT fPlateMin,
                          FX_FLOAT fPlateMax,
                          FX_FLOAT fContentMin,
                          FX_FLOAT fContentMax,
                          FX_FLOAT fSmallStep,
-                         FX_FLOAT fBigStep) override;
-  void IOnSetScrollPosX(FX_FLOAT fx) override {}
-  void IOnSetScrollPosY(FX_FLOAT fy) override;
+                         FX_FLOAT fBigStep);
+  void IOnSetScrollPosY(FX_FLOAT fy);
   void IOnSetCaret(FX_BOOL bVisible,
                    const CFX_FloatPoint& ptHead,
                    const CFX_FloatPoint& ptFoot,
-                   const CPVT_WordPlace& place) override;
-  void IOnContentChange(const CFX_FloatRect& rcContent) override;
-  void IOnInvalidateRect(CFX_FloatRect* pRect) override;
+                   const CPVT_WordPlace& place);
+  void IOnCaretChange(const CPVT_SecProps& secProps,
+                      const CPVT_WordProps& wordProps);
+  void IOnContentChange(const CFX_FloatRect& rcContent);
+  void IOnInvalidateRect(CFX_FloatRect* pRect);
 
+ protected:
   void InsertText(const FX_WCHAR* csText);
   void SetText(const FX_WCHAR* csText);
   void CopyText();
   void PasteText();
   void CutText();
   void ShowVScrollBar(FX_BOOL bShow);
   void InsertWord(uint16_t word, int32_t nCharset);
   void InsertReturn();
 
   FX_BOOL IsWndHorV();
 
   void Delete();
   void Backspace();
 
   void GetCaretInfo(CFX_FloatPoint& ptHead, CFX_FloatPoint& ptFoot) const;
   void SetCaret(FX_BOOL bVisible,
                 const CFX_FloatPoint& ptHead,
                 const CFX_FloatPoint& ptFoot);
 
   void SetEditCaret(FX_BOOL bVisible);
 
- private:
-  void CreateEditCaret(const PWL_CREATEPARAM& cp);
-
- protected:
-  IFX_Edit* m_pEdit;
+  std::unique_ptr<CFX_Edit> m_pEdit;
   CPWL_Caret* m_pEditCaret;
   FX_BOOL m_bMouseDown;
   IPWL_Edit_Notify* m_pEditNotify;
 
  private:
+  void CreateEditCaret(const PWL_CREATEPARAM& cp);
+
   int32_t m_nCharSet;
   int32_t m_nCodePage;
 };
 
 #endif  // FPDFSDK_PDFWINDOW_PWL_EDITCTRL_H_