Remove GetWidget() overrides

xfa/fwl/core/cfwl_edit.cpp

 // 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
 
 #include "xfa/fwl/core/cfwl_edit.h"
 
 #include <memory>
 #include <vector>
 
+namespace {
+
+IFWL_Edit* ToEdit(IFWL_Widget* widget) {
+  return static_cast<IFWL_Edit*>(widget);
+}
+
+const IFWL_Edit* ToEdit(const IFWL_Widget* widget) {
+  return static_cast<const IFWL_Edit*>(widget);
+}
+
+}  // namespace
+
 CFWL_Edit::CFWL_Edit(const IFWL_App* app) : CFWL_Widget(app) {}
 
 CFWL_Edit::~CFWL_Edit() {}
 
 void CFWL_Edit::Initialize() {
   ASSERT(!m_pIface);
 
   std::unique_ptr<IFWL_Edit> pEdit(new IFWL_Edit(
       m_pApp, m_pProperties->MakeWidgetImpProperties(nullptr), nullptr));
   pEdit->Initialize();
 
   m_pIface = std::move(pEdit);
   CFWL_Widget::Initialize();
 }
 
-IFWL_Edit* CFWL_Edit::GetWidget() {
-  return static_cast<IFWL_Edit*>(m_pIface.get());
-}
-
-const IFWL_Edit* CFWL_Edit::GetWidget() const {
-  return static_cast<IFWL_Edit*>(m_pIface.get());
-}
-
 FWL_Error CFWL_Edit::SetText(const CFX_WideString& wsText) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->SetText(wsText);
+  return ToEdit(GetWidget())->SetText(wsText);
 }
 
 int32_t CFWL_Edit::GetTextLength() const {
   if (!GetWidget())
     return 0;
-  return GetWidget()->GetTextLength();
+  return ToEdit(GetWidget())->GetTextLength();
 }
 
 FWL_Error CFWL_Edit::GetText(CFX_WideString& wsText,
                              int32_t nStart,
                              int32_t nCount) const {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->GetText(wsText, nStart, nCount);
+  return ToEdit(GetWidget())->GetText(wsText, nStart, nCount);
 }
 
 FWL_Error CFWL_Edit::ClearText() {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->ClearText();
+  return ToEdit(GetWidget())->ClearText();
 }
 
 int32_t CFWL_Edit::GetCaretPos() const {
   if (!GetWidget())
     return -1;
-  return GetWidget()->GetCaretPos();
+  return ToEdit(GetWidget())->GetCaretPos();
 }
 
 int32_t CFWL_Edit::SetCaretPos(int32_t nIndex, FX_BOOL bBefore) {
   if (!GetWidget())
     return -1;
-  return GetWidget()->SetCaretPos(nIndex, bBefore);
+  return ToEdit(GetWidget())->SetCaretPos(nIndex, bBefore);
 }
 
 int32_t CFWL_Edit::AddSelRange(int32_t nStart, int32_t nCount) {
   if (!GetWidget())
     return -1;
-  GetWidget()->AddSelRange(nStart, nCount);
+  ToEdit(GetWidget())->AddSelRange(nStart, nCount);
   int32_t pos = 0;
-  int32_t sum = GetWidget()->GetTextLength();
+  int32_t sum = ToEdit(GetWidget())->GetTextLength();
   if (nCount == -1) {
     pos = sum;
   } else {
     pos = nStart + nCount;
   }
-  return GetWidget()->SetCaretPos(pos);
+  return ToEdit(GetWidget())->SetCaretPos(pos);
 }
 
 int32_t CFWL_Edit::CountSelRanges() {
   if (!GetWidget())
     return 0;
-  return GetWidget()->CountSelRanges();
+  return ToEdit(GetWidget())->CountSelRanges();
 }
 
 int32_t CFWL_Edit::GetSelRange(int32_t nIndex, int32_t& nStart) {
   if (!GetWidget())
     return 0;
-  return GetWidget()->GetSelRange(nIndex, nStart);
+  return ToEdit(GetWidget())->GetSelRange(nIndex, nStart);
 }
 
 FWL_Error CFWL_Edit::ClearSelections() {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->ClearSelections();
+  return ToEdit(GetWidget())->ClearSelections();
 }
 
 int32_t CFWL_Edit::GetLimit() {
   if (!GetWidget())
     return -1;
-  return GetWidget()->GetLimit();
+  return ToEdit(GetWidget())->GetLimit();
 }
 
 FWL_Error CFWL_Edit::SetLimit(int32_t nLimit) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->SetLimit(nLimit);
+  return ToEdit(GetWidget())->SetLimit(nLimit);
 }
 
 FWL_Error CFWL_Edit::SetAliasChar(FX_WCHAR wAlias) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->SetAliasChar(wAlias);
+  return ToEdit(GetWidget())->SetAliasChar(wAlias);
 }
 
 FWL_Error CFWL_Edit::Insert(int32_t nStart,
                             const FX_WCHAR* lpText,
                             int32_t nLen) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->Insert(nStart, lpText, nLen);
+  return ToEdit(GetWidget())->Insert(nStart, lpText, nLen);
 }
 
 FWL_Error CFWL_Edit::DeleteSelections() {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->DeleteSelections();
+  return ToEdit(GetWidget())->DeleteSelections();
 }
 
 FWL_Error CFWL_Edit::DeleteRange(int32_t nStart, int32_t nCount) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->DeleteRange(nStart, nCount);
+  return ToEdit(GetWidget())->DeleteRange(nStart, nCount);
 }
 
 FWL_Error CFWL_Edit::Replace(int32_t nStart,
                              int32_t nLen,
                              const CFX_WideStringC& wsReplace) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->Replace(nStart, nLen, wsReplace);
+  return ToEdit(GetWidget())->Replace(nStart, nLen, wsReplace);
 }
 
 FWL_Error CFWL_Edit::DoClipboard(int32_t iCmd) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->DoClipboard(iCmd);
+  return ToEdit(GetWidget())->DoClipboard(iCmd);
 }
 
 FX_BOOL CFWL_Edit::Redo(const IFDE_TxtEdtDoRecord* pRecord) {
-  return GetWidget() && GetWidget()->Redo(pRecord);
+  return GetWidget() && ToEdit(GetWidget())->Redo(pRecord);
 }
 
 FX_BOOL CFWL_Edit::Undo(const IFDE_TxtEdtDoRecord* pRecord) {
-  return GetWidget() && GetWidget()->Undo(pRecord);
+  return GetWidget() && ToEdit(GetWidget())->Undo(pRecord);
 }
 
 FWL_Error CFWL_Edit::SetTabWidth(FX_FLOAT fTabWidth, FX_BOOL bEquidistant) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->SetTabWidth(fTabWidth, bEquidistant);
+  return ToEdit(GetWidget())->SetTabWidth(fTabWidth, bEquidistant);
 }
 
 FWL_Error CFWL_Edit::SetNumberRange(int32_t iMin, int32_t iMax) {
-  if (iMin > iMax) {
+  if (iMin > iMax)
     return FWL_Error::ParameterInvalid;
-  }
-  return GetWidget()->SetNumberRange(iMin, iMax);
+  return ToEdit(GetWidget())->SetNumberRange(iMin, iMax);
 }
 
 FWL_Error CFWL_Edit::SetBackColor(uint32_t dwColor) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->SetBackgroundColor(dwColor);
+  return ToEdit(GetWidget())->SetBackgroundColor(dwColor);
 }
 
 FWL_Error CFWL_Edit::SetFont(const CFX_WideString& wsFont, FX_FLOAT fSize) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
-  return GetWidget()->SetFont(wsFont, fSize);
+  return ToEdit(GetWidget())->SetFont(wsFont, fSize);
 }
 
 FX_BOOL CFWL_Edit::CanUndo() {
-  return GetWidget()->CanUndo();
+  return ToEdit(GetWidget())->CanUndo();
 }
 
 FX_BOOL CFWL_Edit::CanRedo() {
-  return GetWidget()->CanRedo();
+  return ToEdit(GetWidget())->CanRedo();
 }
 
 FX_BOOL CFWL_Edit::Undo() {
-  return GetWidget()->Undo();
+  return ToEdit(GetWidget())->Undo();
 }
 
 FX_BOOL CFWL_Edit::Redo() {
-  return GetWidget()->Undo();
+  return ToEdit(GetWidget())->Undo();
 }
 
 FX_BOOL CFWL_Edit::Copy(CFX_WideString& wsCopy) {
-  return GetWidget()->Copy(wsCopy);
+  return ToEdit(GetWidget())->Copy(wsCopy);
 }
 
 FX_BOOL CFWL_Edit::Cut(CFX_WideString& wsCut) {
-  return GetWidget()->Cut(wsCut);
+  return ToEdit(GetWidget())->Cut(wsCut);
 }
 
 FX_BOOL CFWL_Edit::Paste(const CFX_WideString& wsPaste) {
-  return GetWidget()->Paste(wsPaste);
+  return ToEdit(GetWidget())->Paste(wsPaste);
 }
 
 FX_BOOL CFWL_Edit::Delete() {
-  return GetWidget()->Delete();
+  return ToEdit(GetWidget())->Delete();
 }
 
 void CFWL_Edit::SetScrollOffset(FX_FLOAT fScrollOffset) {
-  return GetWidget()->SetScrollOffset(fScrollOffset);
+  return ToEdit(GetWidget())->SetScrollOffset(fScrollOffset);
 }
 
 FX_BOOL CFWL_Edit::GetSuggestWords(CFX_PointF pointf,
                                    std::vector<CFX_ByteString>& sSuggest) {
-  return GetWidget()->GetSuggestWords(pointf, sSuggest);
+  return ToEdit(GetWidget())->GetSuggestWords(pointf, sSuggest);
 }
 
 FX_BOOL CFWL_Edit::ReplaceSpellCheckWord(CFX_PointF pointf,
                                          const CFX_ByteStringC& bsReplace) {
-  return GetWidget()->ReplaceSpellCheckWord(pointf, bsReplace);
+  return ToEdit(GetWidget())->ReplaceSpellCheckWord(pointf, bsReplace);
 }