Remove NULL in xfa/

xfa/fwl/lightwidget/cfwl_listbox.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/lightwidget/cfwl_listbox.h"
 
 #include <memory>
 
@@ skipping 63 matching lines @@
 }
 
 int32_t CFWL_ListBox::CountSelItems() {
   if (!m_pIface)
     return 0;
   return static_cast<IFWL_ListBox*>(m_pIface)->CountSelItems();
 }
 
 IFWL_ListItem* CFWL_ListBox::GetSelItem(int32_t nIndexSel) {
   if (!m_pIface)
-    return NULL;
+    return nullptr;
   return static_cast<IFWL_ListBox*>(m_pIface)->GetSelItem(nIndexSel);
 }
 
 int32_t CFWL_ListBox::GetSelIndex(int32_t nIndex) {
   if (!m_pIface)
     return 0;
   return static_cast<IFWL_ListBox*>(m_pIface)->GetSelIndex(nIndex);
 }
 
 FWL_Error CFWL_ListBox::SetSelItem(IFWL_ListItem* pItem, FX_BOOL bSelect) {
@@ skipping 62 matching lines @@
 }
 
 FWL_Error CFWL_ListBox::SetItemData(IFWL_ListItem* pItem, void* pData) {
   if (!pItem)
     return FWL_Error::Indefinite;
   static_cast<CFWL_ListItem*>(pItem)->m_pData = pData;
   return FWL_Error::Succeeded;
 }
 
 void* CFWL_ListBox::GetItemData(IFWL_ListItem* pItem) {
-  if (!pItem)
-    return NULL;
-  return static_cast<CFWL_ListItem*>(pItem)->m_pData;
+  return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr;
 }
 
 IFWL_ListItem* CFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
   CFX_RectF rtClient;
   m_pIface->GetClientRect(rtClient);
   fx -= rtClient.left;
   fy -= rtClient.top;
   FX_FLOAT fPosX = 0;
   FX_FLOAT fPosY = 0;
   static_cast<IFWL_ListBox*>(m_pIface)->GetScrollPos(fx);
   static_cast<IFWL_ListBox*>(m_pIface)->GetScrollPos(fy, FALSE);
-  int32_t nCount = m_ListBoxDP.CountItems(NULL);
+  int32_t nCount = m_ListBoxDP.CountItems(nullptr);
   for (int32_t i = 0; i < nCount; i++) {
-    IFWL_ListItem* pItem = m_ListBoxDP.GetItem(NULL, i);
+    IFWL_ListItem* pItem = m_ListBoxDP.GetItem(nullptr, i);
     if (!pItem) {
       continue;
     }
     CFX_RectF rtItem;
-    m_ListBoxDP.GetItemRect(NULL, pItem, rtItem);
+    m_ListBoxDP.GetItemRect(nullptr, pItem, rtItem);
     rtItem.Offset(-fPosX, -fPosY);
     if (rtItem.Contains(fx, fy)) {
       return pItem;
     }
   }
-  return NULL;
+  return nullptr;
 }
 
 uint32_t CFWL_ListBox::GetItemStates(IFWL_ListItem* pItem) {
   if (!pItem)
     return 0;
   CFWL_ListItem* pListItem = static_cast<CFWL_ListItem*>(pItem);
   return pListItem->m_dwStates | pListItem->m_dwCheckState;
 }
 
 CFWL_ListBox::CFWL_ListBox() {}
@@ skipping 61 matching lines @@
                                                     IFWL_ListItem* pItem,
                                                     CFX_RectF& rtItem) {
   if (!pItem)
     return FWL_Error::Indefinite;
   rtItem = static_cast<CFWL_ListItem*>(pItem)->m_rtItem;
   return FWL_Error::Succeeded;
 }
 
 void* CFWL_ListBox::CFWL_ListBoxDP::GetItemData(IFWL_Widget* pWidget,
                                                 IFWL_ListItem* pItem) {
-  if (!pItem)
-    return NULL;
-  return static_cast<CFWL_ListItem*>(pItem)->m_pData;
+  return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr;
 }
 
 FWL_Error CFWL_ListBox::CFWL_ListBoxDP::SetItemStyles(IFWL_Widget* pWidget,
                                                       IFWL_ListItem* pItem,
                                                       uint32_t dwStyle) {
   if (!pItem)
     return FWL_Error::Indefinite;
   static_cast<CFWL_ListItem*>(pItem)->m_dwStates = dwStyle;
   return FWL_Error::Succeeded;
 }
@@ skipping 50 matching lines @@
     IFWL_ListItem* pItem,
     uint32_t dwCheckState) {
   static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState = dwCheckState;
   return FWL_Error::Succeeded;
 }
 
 CFWL_ListItem::CFWL_ListItem() {
   m_rtItem.Reset();
   m_dwStates = 0;
   m_wsText = L"";
-  m_pDIB = NULL;
-  m_pData = NULL;
+  m_pDIB = nullptr;
+  m_pData = nullptr;
   m_dwCheckState = 0;
   m_rtCheckBox.Reset();
 }
 
 CFWL_ListItem::~CFWL_ListItem() {}