Pass objects instead of strings for undo/redo records.

xfa/fwl/basewidget/fwl_comboboximp.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/basewidget/fwl_comboboximp.h"
 
 #include "xfa/fde/tto/fde_textout.h"
 #include "xfa/fee/fde_txtedtengine.h"
@@ skipping 51 matching lines @@
 }
 int32_t IFWL_ComboBox::GetEditLimit() {
   return static_cast<CFWL_ComboBoxImp*>(GetImpl())->GetEditLimit();
 }
 FWL_Error IFWL_ComboBox::SetEditLimit(int32_t nLimit) {
   return static_cast<CFWL_ComboBoxImp*>(GetImpl())->SetEditLimit(nLimit);
 }
 FWL_Error IFWL_ComboBox::EditDoClipboard(int32_t iCmd) {
   return static_cast<CFWL_ComboBoxImp*>(GetImpl())->EditDoClipboard(iCmd);
 }
-FX_BOOL IFWL_ComboBox::EditRedo(const CFX_ByteStringC& bsRecord) {
-  return static_cast<CFWL_ComboBoxImp*>(GetImpl())->EditRedo(bsRecord);
+FX_BOOL IFWL_ComboBox::EditRedo(const IFDE_TxtEdtDoRecord* pRecord) {
+  return static_cast<CFWL_ComboBoxImp*>(GetImpl())->EditRedo(pRecord);
 }
-FX_BOOL IFWL_ComboBox::EditUndo(const CFX_ByteStringC& bsRecord) {
-  return static_cast<CFWL_ComboBoxImp*>(GetImpl())->EditUndo(bsRecord);
+FX_BOOL IFWL_ComboBox::EditUndo(const IFDE_TxtEdtDoRecord* pRecord) {
+  return static_cast<CFWL_ComboBoxImp*>(GetImpl())->EditUndo(pRecord);
 }
 IFWL_ListBox* IFWL_ComboBox::GetListBoxt() {
   return static_cast<CFWL_ComboBoxImp*>(GetImpl())->GetListBoxt();
 }
 FX_BOOL IFWL_ComboBox::AfterFocusShowDropList() {
   return static_cast<CFWL_ComboBoxImp*>(GetImpl())->AfterFocusShowDropList();
 }
 FWL_Error IFWL_ComboBox::OpenDropDownList(FX_BOOL bActivate) {
   return static_cast<CFWL_ComboBoxImp*>(GetImpl())->OpenDropDownList(bActivate);
 }
@@ skipping 695 matching lines @@
 FWL_Error CFWL_ComboBoxImp::SetEditLimit(int32_t nLimit) {
   if (!m_pEdit)
     return FWL_Error::Indefinite;
   return m_pEdit->SetLimit(nLimit);
 }
 FWL_Error CFWL_ComboBoxImp::EditDoClipboard(int32_t iCmd) {
   if (!m_pEdit)
     return FWL_Error::Indefinite;
   return m_pEdit->DoClipboard(iCmd);
 }
-FX_BOOL CFWL_ComboBoxImp::EditRedo(const CFX_ByteStringC& bsRecord) {
-  if (!m_pEdit)
-    return FALSE;
-  return m_pEdit->Redo(bsRecord);
+
+FX_BOOL CFWL_ComboBoxImp::EditRedo(const IFDE_TxtEdtDoRecord* pRecord) {
+  return m_pEdit && m_pEdit->Redo(pRecord);
 }
-FX_BOOL CFWL_ComboBoxImp::EditUndo(const CFX_ByteStringC& bsRecord) {
-  if (!m_pEdit)
-    return FALSE;
-  return m_pEdit->Undo(bsRecord);
+
+FX_BOOL CFWL_ComboBoxImp::EditUndo(const IFDE_TxtEdtDoRecord* pRecord) {
+  return m_pEdit && m_pEdit->Undo(pRecord);
 }
+
 IFWL_ListBox* CFWL_ComboBoxImp::GetListBoxt() {
   return m_pListBox.get();
 }
 FX_BOOL CFWL_ComboBoxImp::AfterFocusShowDropList() {
   if (!m_bNeedShowList) {
     return FALSE;
   }
   if (m_pEdit) {
     MatchEditText();
   }
@@ skipping 1039 matching lines @@
   m_pComboBox->ShowDropList(FALSE);
 }
 void CFWL_ComboProxyImpDelegate::OnFocusChanged(CFWL_MsgKillFocus* pMsg,
                                                 FX_BOOL bSet) {
   if (!bSet) {
     if (pMsg->m_pSetFocus == NULL) {
       m_pComboBox->ShowDropList(FALSE);
     }
   }
 }