Get rid of NULLs in xfa/

xfa/fxfa/parser/xfa_utils_imp.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/parser/xfa_utils.h"
 
 #include "core/fxcrt/include/fx_ext.h"
 #include "xfa/fde/xml/fde_xml_imp.h"
 #include "xfa/fxfa/parser/xfa_doclayout.h"
 #include "xfa/fxfa/parser/xfa_document.h"
 #include "xfa/fxfa/parser/xfa_localemgr.h"
 #include "xfa/fxfa/parser/xfa_localevalue.h"
 #include "xfa/fxfa/parser/xfa_object.h"
 #include "xfa/fxfa/parser/xfa_parser.h"
 #include "xfa/fxfa/parser/xfa_script.h"
 
 CXFA_Node* XFA_CreateUIChild(CXFA_Node* pNode, XFA_ELEMENT& eWidgetType) {
   XFA_ELEMENT eType = pNode->GetClassID();
   eWidgetType = eType;
   if (eType != XFA_ELEMENT_Field && eType != XFA_ELEMENT_Draw) {
-    return NULL;
+    return nullptr;
   }
   eWidgetType = XFA_ELEMENT_UNKNOWN;
   XFA_ELEMENT eUIType = XFA_ELEMENT_UNKNOWN;
   CXFA_Value defValue(pNode->GetProperty(0, XFA_ELEMENT_Value, TRUE));
   XFA_ELEMENT eValueType = (XFA_ELEMENT)defValue.GetChildValueClassID();
   switch (eValueType) {
     case XFA_ELEMENT_Boolean:
       eUIType = XFA_ELEMENT_CheckButton;
       break;
     case XFA_ELEMENT_Integer:
@@ skipping 17 matching lines @@
       break;
     case XFA_ELEMENT_Arc:
     case XFA_ELEMENT_Line:
     case XFA_ELEMENT_Rectangle:
       eUIType = XFA_ELEMENT_DefaultUi;
       eWidgetType = eValueType;
       break;
     default:
       break;
   }
-  CXFA_Node* pUIChild = NULL;
+  CXFA_Node* pUIChild = nullptr;
   CXFA_Node* pUI = pNode->GetProperty(0, XFA_ELEMENT_Ui, TRUE);
   CXFA_Node* pChild = pUI->GetNodeItem(XFA_NODEITEM_FirstChild);
   for (; pChild; pChild = pChild->GetNodeItem(XFA_NODEITEM_NextSibling)) {
     XFA_ELEMENT eChild = pChild->GetClassID();
     if (eChild == XFA_ELEMENT_Extras || eChild == XFA_ELEMENT_Picture) {
       continue;
     }
     const XFA_PROPERTY* pProperty =
         XFA_GetPropertyOfElement(XFA_ELEMENT_Ui, eChild, XFA_XDPPACKET_Form);
     if (pProperty && (pProperty->uFlags & XFA_PROPERTYFLAG_OneOf)) {
@@ skipping 108 matching lines @@
       break;
     default:
       iVTType = XFA_VT_NULL;
       break;
   }
   return CXFA_LocaleValue(iVTType, pWidgetData->GetRawValue(),
                           pWidgetData->GetNode()->GetDocument()->GetLocalMgr());
 }
 void XFA_GetPlainTextFromRichText(CFDE_XMLNode* pXMLNode,
                                   CFX_WideString& wsPlainText) {
-  if (pXMLNode == NULL) {
+  if (!pXMLNode)
     return;
-  }
+
   switch (pXMLNode->GetType()) {
     case FDE_XMLNODE_Element: {
       CFDE_XMLElement* pXMLElement = static_cast<CFDE_XMLElement*>(pXMLNode);
       CFX_WideString wsTag;
       pXMLElement->GetLocalTagName(wsTag);
       uint32_t uTag = FX_HashCode_GetW(wsTag.AsStringC(), true);
       if (uTag == 0x0001f714) {
         wsPlainText += L"\n";
       } else if (uTag == 0x00000070) {
         if (!wsPlainText.IsEmpty()) {
@@ skipping 157 matching lines @@
 FX_DOUBLE XFA_ByteStringToDouble(const CFX_ByteStringC& szStringVal) {
   CFX_WideString wsValue = CFX_WideString::FromUTF8(szStringVal);
   return XFA_WideStringToDouble(wsValue);
 }
 
 int32_t XFA_MapRotation(int32_t nRotation) {
   nRotation = nRotation % 360;
   nRotation = nRotation < 0 ? nRotation + 360 : nRotation;
   return nRotation;
 }