Make down-conversion explicit from CFX_Widetring to CFX_WideStringC.

xfa/fxfa/app/xfa_ffchoicelist.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/fxfa/app/xfa_ffchoicelist.h"
 
 #include "xfa/fwl/basewidget/ifwl_edit.h"
 #include "xfa/fwl/core/ifwl_app.h"
@@ skipping 26 matching lines @@
   IFWL_Widget* pWidget = m_pNormalWidget->GetWidget();
   m_pNormalWidget->SetPrivateData(pWidget, this, NULL);
   IFWL_NoteDriver* pNoteDriver = FWL_GetApp()->GetNoteDriver();
   pNoteDriver->RegisterEventTarget(pWidget, pWidget);
   m_pOldDelegate = m_pNormalWidget->SetDelegate(this);
   m_pNormalWidget->LockUpdate();
   CFX_WideStringArray wsLabelArray;
   m_pDataAcc->GetChoiceListItems(wsLabelArray, FALSE);
   int32_t iItems = wsLabelArray.GetSize();
   for (int32_t i = 0; i < iItems; i++) {
-    pListBox->AddString(wsLabelArray[i]);
+    pListBox->AddString(wsLabelArray[i].AsWideStringC());
   }
   uint32_t dwExtendedStyle = FWL_STYLEEXT_LTB_ShowScrollBarFocus;
   if (m_pDataAcc->GetChoiceListOpen() == XFA_ATTRIBUTEENUM_MultiSelect) {
     dwExtendedStyle |= FWL_STYLEEXT_LTB_MultiSelection;
   }
   dwExtendedStyle |= GetAlignment();
   m_pNormalWidget->ModifyStylesEx(dwExtendedStyle, 0xFFFFFFFF);
   CFX_Int32Array iSelArray;
   m_pDataAcc->GetSelectedItems(iSelArray);
   int32_t iSelCount = iSelArray.GetSize();
@@ skipping 101 matching lines @@
 }
 void CXFA_FFListBox::SetItemState(int32_t nIndex, FX_BOOL bSelected) {
   FWL_HLISTITEM item = ((CFWL_ListBox*)m_pNormalWidget)->GetSelItem(nIndex);
   ((CFWL_ListBox*)m_pNormalWidget)->SetSelItem(item, bSelected);
   m_pNormalWidget->Update();
   AddInvalidateRect();
 }
 void CXFA_FFListBox::InsertItem(const CFX_WideStringC& wsLabel,
                                 int32_t nIndex) {
   CFX_WideString wsTemp(wsLabel);
-  ((CFWL_ListBox*)m_pNormalWidget)->AddString(wsTemp);
+  ((CFWL_ListBox*)m_pNormalWidget)->AddString(wsTemp.AsWideStringC());
   m_pNormalWidget->Update();
   AddInvalidateRect();
 }
 void CXFA_FFListBox::DeleteItem(int32_t nIndex) {
   if (nIndex < 0) {
     ((CFWL_ListBox*)m_pNormalWidget)->DeleteAll();
   } else {
     ((CFWL_ListBox*)m_pNormalWidget)
         ->DeleteString(((CFWL_ListBox*)m_pNormalWidget)->GetItem(nIndex));
   }
@@ skipping 53 matching lines @@
   IFWL_Widget* pWidget = m_pNormalWidget->GetWidget();
   m_pNormalWidget->SetPrivateData(pWidget, this, NULL);
   IFWL_NoteDriver* pNoteDriver = FWL_GetApp()->GetNoteDriver();
   pNoteDriver->RegisterEventTarget(pWidget, pWidget);
   m_pOldDelegate = m_pNormalWidget->SetDelegate(this);
   m_pNormalWidget->LockUpdate();
   CFX_WideStringArray wsLabelArray;
   m_pDataAcc->GetChoiceListItems(wsLabelArray, FALSE);
   int32_t iItems = wsLabelArray.GetSize();
   for (int32_t i = 0; i < iItems; i++) {
-    pComboBox->AddString(wsLabelArray[i]);
+    pComboBox->AddString(wsLabelArray[i].AsWideStringC());
   }
   CFX_Int32Array iSelArray;
   m_pDataAcc->GetSelectedItems(iSelArray);
   int32_t iSelCount = iSelArray.GetSize();
   if (iSelCount > 0) {
     pComboBox->SetCurSel(iSelArray[0]);
   } else {
     CFX_WideString wsText;
     m_pDataAcc->GetValue(wsText, XFA_VALUEPICTURE_Raw);
-    pComboBox->SetEditText(wsText);
+    pComboBox->SetEditText(wsText.AsWideStringC());
   }
   UpdateWidgetProperty();
   m_pNormalWidget->UnlockUpdate();
   return CXFA_FFField::LoadWidget();
 }
 void CXFA_FFComboBox::UpdateWidgetProperty() {
   CFWL_ComboBox* pComboBox = (CFWL_ComboBox*)m_pNormalWidget;
   if (!pComboBox) {
     return;
   }
@@ skipping 111 matching lines @@
   }
   CFX_Int32Array iSelArray;
   m_pDataAcc->GetSelectedItems(iSelArray);
   int32_t iSelCount = iSelArray.GetSize();
   if (iSelCount > 0) {
     ((CFWL_ComboBox*)m_pNormalWidget)->SetCurSel(iSelArray[0]);
   } else {
     CFX_WideString wsText;
     ((CFWL_ComboBox*)m_pNormalWidget)->SetCurSel(-1);
     m_pDataAcc->GetValue(wsText, XFA_VALUEPICTURE_Raw);
-    ((CFWL_ComboBox*)m_pNormalWidget)->SetEditText(wsText);
+    ((CFWL_ComboBox*)m_pNormalWidget)->SetEditText(wsText.AsWideStringC());
   }
   m_pNormalWidget->Update();
   return TRUE;
 }
 FX_BOOL CXFA_FFComboBox::CanUndo() {
   return m_pDataAcc->IsChoiceListAllowTextEntry() &&
          ((CFWL_ComboBox*)m_pNormalWidget)->EditCanUndo();
 }
 FX_BOOL CXFA_FFComboBox::CanRedo() {
   return m_pDataAcc->IsChoiceListAllowTextEntry() &&
@@ skipping 126 matching lines @@
       break;
     }
     default: {}
   }
   return m_pOldDelegate->OnProcessEvent(pEvent);
 }
 FWL_ERR CXFA_FFComboBox::OnDrawWidget(CFX_Graphics* pGraphics,
                                       const CFX_Matrix* pMatrix) {
   return m_pOldDelegate->OnDrawWidget(pGraphics, pMatrix);
 }