Cleanup cfwl_* files.

xfa/fwl/core/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/core/cfwl_listbox.h"
 
 #include <memory>
 
@@ skipping 51 matching lines @@
   }
   m_ItemArray.erase(m_ItemArray.begin() + nIndex);
   return true;
 }
 
 void CFWL_ListBox::DeleteAll() {
   m_ItemArray.clear();
 }
 
 int32_t CFWL_ListBox::CountSelItems() {
-  if (!GetWidget())
-    return 0;
-  return ToListBox(GetWidget())->CountSelItems();
+  return GetWidget() ? ToListBox(GetWidget())->CountSelItems() : 0;
 }
 
 CFWL_ListItem* CFWL_ListBox::GetSelItem(int32_t nIndexSel) {
-  if (!GetWidget())
-    return nullptr;
-  return ToListBox(GetWidget())->GetSelItem(nIndexSel);
+  return GetWidget() ? ToListBox(GetWidget())->GetSelItem(nIndexSel) : nullptr;
 }
 
 int32_t CFWL_ListBox::GetSelIndex(int32_t nIndex) {
   if (!GetWidget())
     return 0;
   return ToListBox(GetWidget())->GetSelIndex(nIndex);
 }
 
 void CFWL_ListBox::SetSelItem(CFWL_ListItem* pItem, bool bSelect) {
   if (GetWidget())
     ToListBox(GetWidget())->SetSelItem(pItem, bSelect);
 }
 
 void CFWL_ListBox::GetItemText(CFWL_ListItem* pItem, CFX_WideString& wsText) {
   if (GetWidget())
     ToListBox(GetWidget())->GetItemText(pItem, wsText);
 }
 
-void CFWL_ListBox::GetScrollPos(FX_FLOAT& fPos, bool bVert) {
-  if (GetWidget())
-    ToListBox(GetWidget())->GetScrollPos(fPos, bVert);
-}
-
-int32_t CFWL_ListBox::CountItems() const {
-  return pdfium::CollectionSize<int32_t>(m_ItemArray);
-}
-
 CFWL_ListItem* CFWL_ListBox::GetItem(int32_t nIndex) {
-  if (nIndex < 0 || nIndex >= CountItems())
+  if (nIndex < 0 || nIndex >= CountItems(nullptr))
     return nullptr;
 
   return m_ItemArray[nIndex].get();
 }
 
 uint32_t CFWL_ListBox::GetItemStates(CFWL_ListItem* pItem) {
   if (!pItem)
     return 0;
   CFWL_ListItem* pListItem = static_cast<CFWL_ListItem*>(pItem);
   return pListItem->m_dwStates | pListItem->m_dwCheckState;
 }
 
 void CFWL_ListBox::GetCaption(IFWL_Widget* pWidget, CFX_WideString& wsCaption) {
   wsCaption = L"";
 }
 
 int32_t CFWL_ListBox::CountItems(const IFWL_Widget* pWidget) const {
   return pdfium::CollectionSize<int32_t>(m_ItemArray);
 }
 
 CFWL_ListItem* CFWL_ListBox::GetItem(const IFWL_Widget* pWidget,
                                      int32_t nIndex) const {
   if (nIndex < 0 || nIndex >= CountItems(pWidget))
     return nullptr;
-
   return m_ItemArray[nIndex].get();
 }
 
 int32_t CFWL_ListBox::GetItemIndex(IFWL_Widget* pWidget, CFWL_ListItem* pItem) {
   auto it = std::find_if(
       m_ItemArray.begin(), m_ItemArray.end(),
       [pItem](const std::unique_ptr<CFWL_ListItem>& candidate) {
         return candidate.get() == static_cast<CFWL_ListItem*>(pItem);
       });
   return it != m_ItemArray.end() ? it - m_ItemArray.begin() : -1;
 }
 
-bool CFWL_ListBox::SetItemIndex(IFWL_Widget* pWidget,
-                                CFWL_ListItem* pItem,
-                                int32_t nIndex) {
-  if (nIndex < 0 || nIndex >= CountItems(pWidget))
-    return false;
-  m_ItemArray[nIndex].reset(static_cast<CFWL_ListItem*>(pItem));
-  return true;
-}
-
 uint32_t CFWL_ListBox::GetItemStyles(IFWL_Widget* pWidget,
                                      CFWL_ListItem* pItem) {
-  if (!pItem)
-    return 0;
-  return static_cast<CFWL_ListItem*>(pItem)->m_dwStates;
+  return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_dwStates : 0;
 }
 
 void CFWL_ListBox::GetItemText(IFWL_Widget* pWidget,
                                CFWL_ListItem* pItem,
                                CFX_WideString& wsText) {
   if (pItem)
     wsText = static_cast<CFWL_ListItem*>(pItem)->m_wsText;
 }
 
 void CFWL_ListBox::GetItemRect(IFWL_Widget* pWidget,
                                CFWL_ListItem* pItem,
                                CFX_RectF& rtItem) {
   if (pItem)
     rtItem = static_cast<CFWL_ListItem*>(pItem)->m_rtItem;
 }
 
 void* CFWL_ListBox::GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) {
   return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr;
 }
 
 void CFWL_ListBox::SetItemStyles(IFWL_Widget* pWidget,
                                  CFWL_ListItem* pItem,
                                  uint32_t dwStyle) {
   if (pItem)
     static_cast<CFWL_ListItem*>(pItem)->m_dwStates = dwStyle;
 }
 
-void CFWL_ListBox::SetItemText(IFWL_Widget* pWidget,
-                               CFWL_ListItem* pItem,
-                               const FX_WCHAR* pszText) {
-  if (pItem)
-    static_cast<CFWL_ListItem*>(pItem)->m_wsText = pszText;
-}
-
 void CFWL_ListBox::SetItemRect(IFWL_Widget* pWidget,
                                CFWL_ListItem* pItem,
                                const CFX_RectF& rtItem) {
   if (pItem)
     static_cast<CFWL_ListItem*>(pItem)->m_rtItem = rtItem;
 }
 
-FX_FLOAT CFWL_ListBox::GetItemHeight(IFWL_Widget* pWidget) {
-  return 20;
-}
-
 CFX_DIBitmap* CFWL_ListBox::GetItemIcon(IFWL_Widget* pWidget,
                                         CFWL_ListItem* pItem) {
   return static_cast<CFWL_ListItem*>(pItem)->m_pDIB;
 }
 
 void CFWL_ListBox::GetItemCheckRect(IFWL_Widget* pWidget,
                                     CFWL_ListItem* pItem,
                                     CFX_RectF& rtCheck) {
   rtCheck = static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox;
 }
 
 void CFWL_ListBox::SetItemCheckRect(IFWL_Widget* pWidget,
                                     CFWL_ListItem* pItem,
                                     const CFX_RectF& rtCheck) {
   static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox = rtCheck;
 }
 
 uint32_t CFWL_ListBox::GetItemCheckState(IFWL_Widget* pWidget,
                                          CFWL_ListItem* pItem) {
   return static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState;
 }
 
 void CFWL_ListBox::SetItemCheckState(IFWL_Widget* pWidget,
                                      CFWL_ListItem* pItem,
                                      uint32_t dwCheckState) {
   static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState = dwCheckState;
 }