Merge delegates into IFWL_* classes.

xfa/fwl/core/ifwl_datetimepicker.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_CORE_IFWL_DATETIMEPICKER_H_
 #define XFA_FWL_CORE_IFWL_DATETIMEPICKER_H_
 
 #include "xfa/fwl/core/cfwl_event.h"
@@ skipping 56 matching lines @@
   ~IFWL_DateTimePicker() override;
 
   // IFWL_Widget
   FWL_Type GetClassID() const override;
   FWL_Error GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE) override;
   FWL_Error Update() override;
   FWL_WidgetHit HitTest(FX_FLOAT fx, FX_FLOAT fy) override;
   FWL_Error DrawWidget(CFX_Graphics* pGraphics,
                        const CFX_Matrix* pMatrix = nullptr) override;
   FWL_Error SetThemeProvider(IFWL_ThemeProvider* pTP) override;
+  void OnProcessMessage(CFWL_Message* pMessage) override;
+  void OnDrawWidget(CFX_Graphics* pGraphics,
+                    const CFX_Matrix* pMatrix) override;
 
   FWL_Error GetCurSel(int32_t& iYear, int32_t& iMonth, int32_t& iDay);
   FWL_Error SetCurSel(int32_t iYear, int32_t iMonth, int32_t iDay);
   FWL_Error SetEditText(const CFX_WideString& wsText);
   FWL_Error GetEditText(CFX_WideString& wsText,
                         int32_t nStart = 0,
                         int32_t nCount = -1) const;
   int32_t CountSelRanges();
   int32_t GetSelRange(int32_t nIndex, int32_t& nStart);
 
   FX_BOOL CanUndo();
   FX_BOOL CanRedo();
   FX_BOOL Undo();
   FX_BOOL Redo();
   FX_BOOL CanCopy();
   FX_BOOL CanCut();
   FX_BOOL CanSelectAll();
   FX_BOOL Copy(CFX_WideString& wsCopy);
   FX_BOOL Cut(CFX_WideString& wsCut);
   FX_BOOL Paste(const CFX_WideString& wsPaste);
   FX_BOOL SelectAll();
   FX_BOOL Delete();
   FX_BOOL DeSelect();
   FWL_Error GetBBox(CFX_RectF& rect);
   FWL_Error SetEditLimit(int32_t nLimit);
   FWL_Error ModifyEditStylesEx(uint32_t dwStylesExAdded,
                                uint32_t dwStylesExRemoved);
   IFWL_DateTimeEdit* GetDataTimeEdit();
 
+  FX_BOOL IsMonthCalendarShowed();
+  void ShowMonthCalendar(FX_BOOL bActivate);
+  void ProcessSelChanged(int32_t iYear, int32_t iMonth, int32_t iDay);
+
+  IFWL_FormProxy* GetFormProxy() const { return m_pForm.get(); }
+
  protected:
-  friend class CFWL_DateTimeEditImpDelegate;
-  friend class IFWL_DateTimeCalendar;
-  friend class CFWL_DateTimeCalendarImpDelegate;
-  friend class CFWL_DateTimePickerImpDelegate;
-
   class CFWL_MonthCalendarImpDP : public IFWL_MonthCalendarDP {
    public:
     CFWL_MonthCalendarImpDP();
 
     // IFWL_DataProvider
     FWL_Error GetCaption(IFWL_Widget* pWidget,
                          CFX_WideString& wsCaption) override;
 
     // IFWL_MonthCalendarDP
     int32_t GetCurDay(IFWL_Widget* pWidget) override;
     int32_t GetCurMonth(IFWL_Widget* pWidget) override;
     int32_t GetCurYear(IFWL_Widget* pWidget) override;
 
     int32_t m_iCurDay;
     int32_t m_iCurYear;
     int32_t m_iCurMonth;
   };
 
   void DrawDropDownButton(CFX_Graphics* pGraphics,
                           IFWL_ThemeProvider* pTheme,
                           const CFX_Matrix* pMatrix);
   void FormatDateString(int32_t iYear,
                         int32_t iMonth,
                         int32_t iDay,
                         CFX_WideString& wsText);
-  void ShowMonthCalendar(FX_BOOL bActivate);
-  FX_BOOL IsMonthCalendarShowed();
   void ReSetEditAlignment();
   void InitProxyForm();
-  void ProcessSelChanged(int32_t iYear, int32_t iMonth, int32_t iDay);
 
   CFX_RectF m_rtBtn;
   CFX_RectF m_rtClient;
   int32_t m_iBtnState;
   int32_t m_iYear;
   int32_t m_iMonth;
   int32_t m_iDay;
   FX_BOOL m_bLBtnDown;
   std::unique_ptr<IFWL_DateTimeEdit> m_pEdit;
   std::unique_ptr<IFWL_DateTimeCalendar> m_pMonthCal;
   std::unique_ptr<IFWL_FormProxy> m_pForm;
   FX_FLOAT m_fBtn;
   CFWL_MonthCalendarImpDP m_MonthCalendarDP;
 
  private:
   FWL_Error DisForm_Initialize();
   void DisForm_InitDateTimeCalendar();
   void DisForm_InitDateTimeEdit();
   FX_BOOL DisForm_IsMonthCalendarShowed();
   void DisForm_ShowMonthCalendar(FX_BOOL bActivate);
   FWL_WidgetHit DisForm_HitTest(FX_FLOAT fx, FX_FLOAT fy);
   FX_BOOL DisForm_IsNeedShowButton();
   FWL_Error DisForm_Update();
   FWL_Error DisForm_GetWidgetRect(CFX_RectF& rect, FX_BOOL bAutoSize = FALSE);
   FWL_Error DisForm_GetBBox(CFX_RectF& rect);
   FWL_Error DisForm_DrawWidget(CFX_Graphics* pGraphics,
                                const CFX_Matrix* pMatrix = nullptr);
-};
 
-class CFWL_DateTimePickerImpDelegate : public CFWL_WidgetImpDelegate {
- public:
-  CFWL_DateTimePickerImpDelegate(IFWL_DateTimePicker* pOwner);
-
-  // CFWL_WidgetImpDelegate
-  void OnProcessMessage(CFWL_Message* pMessage) override;
-  void OnDrawWidget(CFX_Graphics* pGraphics,
-                    const CFX_Matrix* pMatrix = nullptr) override;
-
- protected:
-  void OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet = TRUE);
+  void OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet);
   void OnLButtonDown(CFWL_MsgMouse* pMsg);
   void OnLButtonUp(CFWL_MsgMouse* pMsg);
   void OnMouseMove(CFWL_MsgMouse* pMsg);
   void OnMouseLeave(CFWL_MsgMouse* pMsg);
-
-  IFWL_DateTimePicker* m_pOwner;
-
- private:
-  void DisForm_OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet = TRUE);
+  void DisForm_OnFocusChanged(CFWL_Message* pMsg, FX_BOOL bSet);
 };
 
 #endif  // XFA_FWL_CORE_IFWL_DATETIMEPICKER_H_