Cleanup IFWL_Widget visibility and virtual parameters

xfa/fwl/core/ifwl_combobox.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_COMBOBOX_H_
 #define XFA_FWL_CORE_IFWL_COMBOBOX_H_
 
 #include "xfa/fwl/core/ifwl_form.h"
@@ skipping 67 matching lines @@
 };
 
 class IFWL_ComboBox : public IFWL_Widget {
  public:
   explicit IFWL_ComboBox(const IFWL_App* app,
                          std::unique_ptr<CFWL_WidgetProperties> properties);
   ~IFWL_ComboBox() override;
 
   // IFWL_Widget
   FWL_Type GetClassID() const override;
-  FWL_Error GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
-  FWL_Error ModifyStylesEx(uint32_t dwStylesExAdded,
-                           uint32_t dwStylesExRemoved) override;
+  void GetWidgetRect(CFX_RectF& rect, bool bAutoSize = false) override;
+  void ModifyStylesEx(uint32_t dwStylesExAdded,
+                      uint32_t dwStylesExRemoved) override;
   void SetStates(uint32_t dwStates, bool bSet = true) override;
-  FWL_Error Update() override;
+  void 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* pThemeProvider) override;
+  void DrawWidget(CFX_Graphics* pGraphics,
+                  const CFX_Matrix* pMatrix = nullptr) override;
+  void SetThemeProvider(IFWL_ThemeProvider* pThemeProvider) override;
   void OnProcessMessage(CFWL_Message* pMessage) override;
   void OnProcessEvent(CFWL_Event* pEvent) override;
   void OnDrawWidget(CFX_Graphics* pGraphics,
                     const CFX_Matrix* pMatrix) override;
 
   int32_t GetCurSel();
   FWL_Error SetCurSel(int32_t iSel);
-  FWL_Error SetEditText(const CFX_WideString& wsText);
+  void SetEditText(const CFX_WideString& wsText);
   int32_t GetEditTextLength() const;
   FWL_Error GetEditText(CFX_WideString& wsText,
                         int32_t nStart = 0,
                         int32_t nCount = -1) const;
   FWL_Error SetEditSelRange(int32_t nStart, int32_t nCount = -1);
   int32_t GetEditSelRange(int32_t nIndex, int32_t& nStart);
   int32_t GetEditLimit();
   FWL_Error SetEditLimit(int32_t nLimit);
   FWL_Error EditDoClipboard(int32_t iCmd);
   bool EditRedo(const IFDE_TxtEdtDoRecord* pRecord);
   bool EditUndo(const IFDE_TxtEdtDoRecord* pRecord);
   IFWL_ListBox* GetListBoxt();
   bool AfterFocusShowDropList();
   FWL_Error OpenDropDownList(bool bActivate);
   bool EditCanUndo();
   bool EditCanRedo();
   bool EditUndo();
   bool EditRedo();
   bool EditCanCopy();
   bool EditCanCut();
   bool EditCanSelectAll();
   bool EditCopy(CFX_WideString& wsCopy);
   bool EditCut(CFX_WideString& wsCut);
   bool EditPaste(const CFX_WideString& wsPaste);
   bool EditSelectAll();
   bool EditDelete();
   bool EditDeSelect();
   FWL_Error GetBBox(CFX_RectF& rect);
-  FWL_Error EditModifyStylesEx(uint32_t dwStylesExAdded,
-                               uint32_t dwStylesExRemoved);
+  void EditModifyStylesEx(uint32_t dwStylesExAdded, uint32_t dwStylesExRemoved);
 
   void DrawStretchHandler(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix);
   bool IsDropListShowed();
   void ShowDropList(bool bActivate);
 
   IFWL_ComboEdit* GetComboEdit() const { return m_pEdit.get(); }
   void ProcessSelChanged(bool bLButtonUp);
   int32_t GetCurrentSelection() const { return m_iCurSel; }
 
  protected:
   FX_FLOAT GetListHeight();
   bool IsDropDownStyle() const;
   void MatchEditText();
   void SynchrEditText(int32_t iListItem);
   void Layout();
   void ReSetTheme();
   void ReSetEditAlignment();
   void ReSetListItemAlignment();
   void InitProxyForm();
   void DisForm_InitComboList();
   void DisForm_InitComboEdit();
   void DisForm_ShowDropList(bool bActivate);
   bool DisForm_IsDropListShowed();
-  FWL_Error DisForm_ModifyStylesEx(uint32_t dwStylesExAdded,
-                                   uint32_t dwStylesExRemoved);
-  FWL_Error DisForm_Update();
+  void DisForm_ModifyStylesEx(uint32_t dwStylesExAdded,
+                              uint32_t dwStylesExRemoved);
+  void DisForm_Update();
   FWL_WidgetHit DisForm_HitTest(FX_FLOAT fx, FX_FLOAT fy);
-  FWL_Error DisForm_DrawWidget(CFX_Graphics* pGraphics,
-                               const CFX_Matrix* pMatrix = nullptr);
+  void DisForm_DrawWidget(CFX_Graphics* pGraphics,
+                          const CFX_Matrix* pMatrix = nullptr);
   FWL_Error DisForm_GetBBox(CFX_RectF& rect);
   void DisForm_Layout();
 
   CFX_RectF m_rtClient;
   CFX_RectF m_rtContent;
   CFX_RectF m_rtBtn;
   CFX_RectF m_rtList;
   CFX_RectF m_rtProxy;
   CFX_RectF m_rtHandler;
   std::unique_ptr<IFWL_ComboEdit> m_pEdit;
@@ skipping 16 matching lines @@
   void OnKey(CFWL_MsgKey* pMsg);
   void DoSubCtrlKey(CFWL_MsgKey* pMsg);
   void DisForm_OnProcessMessage(CFWL_Message* pMessage);
   void DisForm_OnLButtonDown(CFWL_MsgMouse* pMsg);
   void DisForm_OnFocusChanged(CFWL_Message* pMsg, bool bSet = true);
   void DisForm_OnKey(CFWL_MsgKey* pMsg);
 
 };
 
 #endif  // XFA_FWL_CORE_IFWL_COMBOBOX_H_