Rename IFWL_ListItem to CFWL_ListItem

This CL removes the empty IFWL_ListItem class and uses CFWL_ListItem in its
place. As well, the CFWL_ComboListItem is removed and replaced with
CFWL_ListItem.  These were almost duplicate classes and the one missing field
added to CFWL_ListItem.

Review-Url: https://codereview.chromium.org/2487943003

10 files changed, 254 insertions, 250 deletions

diff --git a/xfa/fwl/core/cfwl_combobox.cpp b/xfa/fwl/core/cfwl_combobox.cpp
index fa2698be6e..9b2cf7fe41 100644
--- a/xfa/fwl/core/cfwl_combobox.cpp
+++ b/xfa/fwl/core/cfwl_combobox.cpp
@@ -39,7 +39,7 @@ void CFWL_ComboBox::Initialize() {
 }
 
 int32_t CFWL_ComboBox::AddString(const CFX_WideStringC& wsText) {
-  std::unique_ptr<CFWL_ComboBoxItem> pItem(new CFWL_ComboBoxItem);
+  std::unique_ptr<CFWL_ListItem> pItem(new CFWL_ListItem);
   pItem->m_wsText = wsText;
   pItem->m_dwStyles = 0;
   m_ItemArray.push_back(std::move(pItem));
@@ -48,7 +48,7 @@ int32_t CFWL_ComboBox::AddString(const CFX_WideStringC& wsText) {
 
 int32_t CFWL_ComboBox::AddString(const CFX_WideStringC& wsText,
                                  CFX_DIBitmap* pIcon) {
-  std::unique_ptr<CFWL_ComboBoxItem> pItem(new CFWL_ComboBoxItem);
+  std::unique_ptr<CFWL_ListItem> pItem(new CFWL_ListItem);
   pItem->m_wsText = wsText;
   pItem->m_dwStyles = 0;
   pItem->m_pDIB = pIcon;
@@ -74,8 +74,8 @@ int32_t CFWL_ComboBox::CountItems() {
 
 FWL_Error CFWL_ComboBox::GetTextByIndex(int32_t iIndex,
                                         CFX_WideString& wsText) {
-  CFWL_ComboBoxItem* pItem =
-      static_cast<CFWL_ComboBoxItem*>(GetItem(m_pIface.get(), iIndex));
+  CFWL_ListItem* pItem =
+      static_cast<CFWL_ListItem*>(GetItem(m_pIface.get(), iIndex));
   if (!pItem)
     return FWL_Error::Indefinite;
   wsText = pItem->m_wsText;
@@ -146,8 +146,8 @@ FWL_Error CFWL_ComboBox::SetMaxListHeight(FX_FLOAT fMaxHeight) {
 }
 
 FWL_Error CFWL_ComboBox::SetItemData(int32_t iIndex, void* pData) {
-  CFWL_ComboBoxItem* pItem =
-      static_cast<CFWL_ComboBoxItem*>(GetItem(m_pIface.get(), iIndex));
+  CFWL_ListItem* pItem =
+      static_cast<CFWL_ListItem*>(GetItem(m_pIface.get(), iIndex));
   if (!pItem)
     return FWL_Error::Indefinite;
   pItem->m_pData = pData;
@@ -155,8 +155,8 @@ FWL_Error CFWL_ComboBox::SetItemData(int32_t iIndex, void* pData) {
 }
 
 void* CFWL_ComboBox::GetItemData(int32_t iIndex) {
-  CFWL_ComboBoxItem* pItem =
-      static_cast<CFWL_ComboBoxItem*>(GetItem(m_pIface.get(), iIndex));
+  CFWL_ListItem* pItem =
+      static_cast<CFWL_ListItem*>(GetItem(m_pIface.get(), iIndex));
   return pItem ? pItem->m_pData : nullptr;
 }
 
@@ -246,7 +246,7 @@ int32_t CFWL_ComboBox::CountItems(const IFWL_Widget* pWidget) {
   return m_ItemArray.size();
 }
 
-IFWL_ListItem* CFWL_ComboBox::GetItem(const IFWL_Widget* pWidget,
+CFWL_ListItem* CFWL_ComboBox::GetItem(const IFWL_Widget* pWidget,
                                       int32_t nIndex) {
   if (nIndex < 0 || static_cast<size_t>(nIndex) >= m_ItemArray.size())
     return nullptr;
@@ -255,80 +255,80 @@ IFWL_ListItem* CFWL_ComboBox::GetItem(const IFWL_Widget* pWidget,
 }
 
 int32_t CFWL_ComboBox::GetItemIndex(IFWL_Widget* pWidget,
-                                    IFWL_ListItem* pItem) {
+                                    CFWL_ListItem* pItem) {
   auto it = std::find_if(
       m_ItemArray.begin(), m_ItemArray.end(),
-      [pItem](const std::unique_ptr<CFWL_ComboBoxItem>& candidate) {
-        return candidate.get() == static_cast<CFWL_ComboBoxItem*>(pItem);
+      [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_ComboBox::SetItemIndex(IFWL_Widget* pWidget,
-                                 IFWL_ListItem* pItem,
+                                 CFWL_ListItem* pItem,
                                  int32_t nIndex) {
   if (nIndex < 0 || static_cast<size_t>(nIndex) >= m_ItemArray.size())
     return false;
 
-  m_ItemArray[nIndex].reset(static_cast<CFWL_ComboBoxItem*>(pItem));
+  m_ItemArray[nIndex].reset(static_cast<CFWL_ListItem*>(pItem));
   return true;
 }
 
 uint32_t CFWL_ComboBox::GetItemStyles(IFWL_Widget* pWidget,
-                                      IFWL_ListItem* pItem) {
+                                      CFWL_ListItem* pItem) {
   if (!pItem)
     return 0;
-  return static_cast<CFWL_ComboBoxItem*>(pItem)->m_dwStyles;
+  return static_cast<CFWL_ListItem*>(pItem)->m_dwStyles;
 }
 
 FWL_Error CFWL_ComboBox::GetItemText(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem,
+                                     CFWL_ListItem* pItem,
                                      CFX_WideString& wsText) {
   if (!pItem)
     return FWL_Error::Indefinite;
-  wsText = static_cast<CFWL_ComboBoxItem*>(pItem)->m_wsText;
+  wsText = static_cast<CFWL_ListItem*>(pItem)->m_wsText;
   return FWL_Error::Succeeded;
 }
 
 FWL_Error CFWL_ComboBox::GetItemRect(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem,
+                                     CFWL_ListItem* pItem,
                                      CFX_RectF& rtItem) {
   if (!pItem)
     return FWL_Error::Indefinite;
-  CFWL_ComboBoxItem* pComboItem = static_cast<CFWL_ComboBoxItem*>(pItem);
+  CFWL_ListItem* pComboItem = static_cast<CFWL_ListItem*>(pItem);
   rtItem.Set(pComboItem->m_rtItem.left, pComboItem->m_rtItem.top,
              pComboItem->m_rtItem.width, pComboItem->m_rtItem.height);
   return FWL_Error::Succeeded;
 }
 
-void* CFWL_ComboBox::GetItemData(IFWL_Widget* pWidget, IFWL_ListItem* pItem) {
-  return pItem ? static_cast<CFWL_ComboBoxItem*>(pItem)->m_pData : nullptr;
+void* CFWL_ComboBox::GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) {
+  return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr;
 }
 
 FWL_Error CFWL_ComboBox::SetItemStyles(IFWL_Widget* pWidget,
-                                       IFWL_ListItem* pItem,
+                                       CFWL_ListItem* pItem,
                                        uint32_t dwStyle) {
   if (!pItem)
     return FWL_Error::Indefinite;
-  static_cast<CFWL_ComboBoxItem*>(pItem)->m_dwStyles = dwStyle;
+  static_cast<CFWL_ListItem*>(pItem)->m_dwStyles = dwStyle;
   return FWL_Error::Succeeded;
 }
 
 FWL_Error CFWL_ComboBox::SetItemText(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem,
+                                     CFWL_ListItem* pItem,
                                      const FX_WCHAR* pszText) {
   if (!pItem)
     return FWL_Error::Indefinite;
-  static_cast<CFWL_ComboBoxItem*>(pItem)->m_wsText = pszText;
+  static_cast<CFWL_ListItem*>(pItem)->m_wsText = pszText;
   return FWL_Error::Succeeded;
 }
 
 FWL_Error CFWL_ComboBox::SetItemRect(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem,
+                                     CFWL_ListItem* pItem,
                                      const CFX_RectF& rtItem) {
   if (!pItem)
     return FWL_Error::Indefinite;
-  static_cast<CFWL_ComboBoxItem*>(pItem)->m_rtItem = rtItem;
+  static_cast<CFWL_ListItem*>(pItem)->m_rtItem = rtItem;
   return FWL_Error::Succeeded;
 }
 
@@ -337,40 +337,36 @@ FX_FLOAT CFWL_ComboBox::GetItemHeight(IFWL_Widget* pWidget) {
 }
 
 CFX_DIBitmap* CFWL_ComboBox::GetItemIcon(IFWL_Widget* pWidget,
-                                         IFWL_ListItem* pItem) {
-  return pItem ? static_cast<CFWL_ComboBoxItem*>(pItem)->m_pDIB : nullptr;
+                                         CFWL_ListItem* pItem) {
+  return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pDIB : nullptr;
 }
 
 FWL_Error CFWL_ComboBox::GetItemCheckRect(IFWL_Widget* pWidget,
-                                          IFWL_ListItem* pItem,
+                                          CFWL_ListItem* pItem,
                                           CFX_RectF& rtCheck) {
-  rtCheck = static_cast<CFWL_ComboBoxItem*>(pItem)->m_rtCheckBox;
+  rtCheck = static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox;
   return FWL_Error::Succeeded;
 }
 
 FWL_Error CFWL_ComboBox::SetItemCheckRect(IFWL_Widget* pWidget,
-                                          IFWL_ListItem* pItem,
+                                          CFWL_ListItem* pItem,
                                           const CFX_RectF& rtCheck) {
-  static_cast<CFWL_ComboBoxItem*>(pItem)->m_rtCheckBox = rtCheck;
+  static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox = rtCheck;
   return FWL_Error::Succeeded;
 }
 
 uint32_t CFWL_ComboBox::GetItemCheckState(IFWL_Widget* pWidget,
-                                          IFWL_ListItem* pItem) {
-  return static_cast<CFWL_ComboBoxItem*>(pItem)->m_dwCheckState;
+                                          CFWL_ListItem* pItem) {
+  return static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState;
 }
 
 FWL_Error CFWL_ComboBox::SetItemCheckState(IFWL_Widget* pWidget,
-                                           IFWL_ListItem* pItem,
+                                           CFWL_ListItem* pItem,
                                            uint32_t dwCheckState) {
-  static_cast<CFWL_ComboBoxItem*>(pItem)->m_dwCheckState = dwCheckState;
+  static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState = dwCheckState;
   return FWL_Error::Succeeded;
 }
 
 FX_FLOAT CFWL_ComboBox::GetListHeight(IFWL_Widget* pWidget) {
   return m_fMaxListHeight;
 }
-
-CFWL_ComboBoxItem::CFWL_ComboBoxItem() : m_pDIB(nullptr), m_pData(nullptr) {}
-
-CFWL_ComboBoxItem::~CFWL_ComboBoxItem() {}
diff --git a/xfa/fwl/core/cfwl_combobox.h b/xfa/fwl/core/cfwl_combobox.h
index cd409ffbc1..4b544b4530 100644
--- a/xfa/fwl/core/cfwl_combobox.h
+++ b/xfa/fwl/core/cfwl_combobox.h
@@ -13,20 +13,6 @@
 #include "xfa/fwl/core/cfwl_widget.h"
 #include "xfa/fwl/core/ifwl_combobox.h"
 
-class CFWL_ComboBoxItem : public IFWL_ListItem {
- public:
-  CFWL_ComboBoxItem();
-  ~CFWL_ComboBoxItem();
-
-  CFX_RectF m_rtItem;
-  uint32_t m_dwStyles;
-  CFX_WideString m_wsText;
-  CFX_DIBitmap* m_pDIB;
-  uint32_t m_dwCheckState;
-  CFX_RectF m_rtCheckBox;
-  void* m_pData;
-};
-
 class CFWL_ComboBox : public CFWL_Widget, public IFWL_ComboBoxDP {
  public:
   CFWL_ComboBox(const IFWL_App*);
@@ -84,49 +70,49 @@ class CFWL_ComboBox : public CFWL_Widget, public IFWL_ComboBoxDP {
 
   // IFWL_ListBoxDP
   int32_t CountItems(const IFWL_Widget* pWidget) override;
-  IFWL_ListItem* GetItem(const IFWL_Widget* pWidget, int32_t nIndex) override;
-  int32_t GetItemIndex(IFWL_Widget* pWidget, IFWL_ListItem* pItem) override;
+  CFWL_ListItem* GetItem(const IFWL_Widget* pWidget, int32_t nIndex) override;
+  int32_t GetItemIndex(IFWL_Widget* pWidget, CFWL_ListItem* pItem) override;
   bool SetItemIndex(IFWL_Widget* pWidget,
-                    IFWL_ListItem* pItem,
+                    CFWL_ListItem* pItem,
                     int32_t nIndex) override;
 
-  uint32_t GetItemStyles(IFWL_Widget* pWidget, IFWL_ListItem* pItem) override;
+  uint32_t GetItemStyles(IFWL_Widget* pWidget, CFWL_ListItem* pItem) override;
   FWL_Error GetItemText(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         CFX_WideString& wsText) override;
   FWL_Error GetItemRect(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         CFX_RectF& rtItem) override;
-  void* GetItemData(IFWL_Widget* pWidget, IFWL_ListItem* pItem) override;
+  void* GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) override;
   FWL_Error SetItemStyles(IFWL_Widget* pWidget,
-                          IFWL_ListItem* pItem,
+                          CFWL_ListItem* pItem,
                           uint32_t dwStyle) override;
   FWL_Error SetItemText(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         const FX_WCHAR* pszText) override;
   FWL_Error SetItemRect(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         const CFX_RectF& rtItem) override;
   FX_FLOAT GetItemHeight(IFWL_Widget* pWidget) override;
   CFX_DIBitmap* GetItemIcon(IFWL_Widget* pWidget,
-                            IFWL_ListItem* pItem) override;
+                            CFWL_ListItem* pItem) override;
   FWL_Error GetItemCheckRect(IFWL_Widget* pWidget,
-                             IFWL_ListItem* pItem,
+                             CFWL_ListItem* pItem,
                              CFX_RectF& rtCheck) override;
   FWL_Error SetItemCheckRect(IFWL_Widget* pWidget,
-                             IFWL_ListItem* pItem,
+                             CFWL_ListItem* pItem,
                              const CFX_RectF& rtCheck) override;
   uint32_t GetItemCheckState(IFWL_Widget* pWidget,
-                             IFWL_ListItem* pItem) override;
+                             CFWL_ListItem* pItem) override;
   FWL_Error SetItemCheckState(IFWL_Widget* pWidget,
-                              IFWL_ListItem* pItem,
+                              CFWL_ListItem* pItem,
                               uint32_t dwCheckState) override;
 
   // IFWL_ComboBoxDP
   FX_FLOAT GetListHeight(IFWL_Widget* pWidget) override;
 
  private:
-  std::vector<std::unique_ptr<CFWL_ComboBoxItem>> m_ItemArray;
+  std::vector<std::unique_ptr<CFWL_ListItem>> m_ItemArray;
   FX_FLOAT m_fMaxListHeight;
   FX_FLOAT m_fItemHeight;
 };
diff --git a/xfa/fwl/core/cfwl_listbox.cpp b/xfa/fwl/core/cfwl_listbox.cpp
index 458a0eb647..a569ad056e 100644
--- a/xfa/fwl/core/cfwl_listbox.cpp
+++ b/xfa/fwl/core/cfwl_listbox.cpp
@@ -32,12 +32,12 @@ void CFWL_ListBox::Initialize() {
   CFWL_Widget::Initialize();
 }
 
-FWL_Error CFWL_ListBox::AddDIBitmap(CFX_DIBitmap* pDIB, IFWL_ListItem* pItem) {
+FWL_Error CFWL_ListBox::AddDIBitmap(CFX_DIBitmap* pDIB, CFWL_ListItem* pItem) {
   static_cast<CFWL_ListItem*>(pItem)->m_pDIB = pDIB;
   return FWL_Error::Succeeded;
 }
 
-IFWL_ListItem* CFWL_ListBox::AddString(const CFX_WideStringC& wsAdd,
+CFWL_ListItem* CFWL_ListBox::AddString(const CFX_WideStringC& wsAdd,
                                        bool bSelect) {
   std::unique_ptr<CFWL_ListItem> pItem(new CFWL_ListItem);
   pItem->m_dwStates = 0;
@@ -47,7 +47,7 @@ IFWL_ListItem* CFWL_ListBox::AddString(const CFX_WideStringC& wsAdd,
   return m_ItemArray.back().get();
 }
 
-bool CFWL_ListBox::DeleteString(IFWL_ListItem* pItem) {
+bool CFWL_ListBox::DeleteString(CFWL_ListItem* pItem) {
   int32_t nIndex = GetItemIndex(GetWidget(), pItem);
   if (nIndex < 0 || static_cast<size_t>(nIndex) >= m_ItemArray.size()) {
     return false;
@@ -79,7 +79,7 @@ int32_t CFWL_ListBox::CountSelItems() {
   return ToListBox(GetWidget())->CountSelItems();
 }
 
-IFWL_ListItem* CFWL_ListBox::GetSelItem(int32_t nIndexSel) {
+CFWL_ListItem* CFWL_ListBox::GetSelItem(int32_t nIndexSel) {
   if (!GetWidget())
     return nullptr;
   return ToListBox(GetWidget())->GetSelItem(nIndexSel);
@@ -91,13 +91,13 @@ int32_t CFWL_ListBox::GetSelIndex(int32_t nIndex) {
   return ToListBox(GetWidget())->GetSelIndex(nIndex);
 }
 
-FWL_Error CFWL_ListBox::SetSelItem(IFWL_ListItem* pItem, bool bSelect) {
+FWL_Error CFWL_ListBox::SetSelItem(CFWL_ListItem* pItem, bool bSelect) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
   return ToListBox(GetWidget())->SetSelItem(pItem, bSelect);
 }
 
-FWL_Error CFWL_ListBox::GetItemText(IFWL_ListItem* pItem,
+FWL_Error CFWL_ListBox::GetItemText(CFWL_ListItem* pItem,
                                     CFX_WideString& wsText) {
   if (!GetWidget())
     return FWL_Error::Indefinite;
@@ -115,7 +115,7 @@ FWL_Error CFWL_ListBox::SetItemHeight(FX_FLOAT fItemHeight) {
   return FWL_Error::Succeeded;
 }
 
-IFWL_ListItem* CFWL_ListBox::GetFocusItem() {
+CFWL_ListItem* CFWL_ListBox::GetFocusItem() {
   for (const auto& pItem : m_ItemArray) {
     if (pItem->m_dwStates & FWL_ITEMSTATE_LTB_Focused)
       return pItem.get();
@@ -123,7 +123,7 @@ IFWL_ListItem* CFWL_ListBox::GetFocusItem() {
   return nullptr;
 }
 
-FWL_Error CFWL_ListBox::SetFocusItem(IFWL_ListItem* pItem) {
+FWL_Error CFWL_ListBox::SetFocusItem(CFWL_ListItem* pItem) {
   int32_t nIndex = GetItemIndex(GetWidget(), pItem);
   m_ItemArray[nIndex]->m_dwStates |= FWL_ITEMSTATE_LTB_Focused;
   return FWL_Error::Succeeded;
@@ -133,14 +133,14 @@ int32_t CFWL_ListBox::CountItems() {
   return pdfium::CollectionSize<int32_t>(m_ItemArray);
 }
 
-IFWL_ListItem* CFWL_ListBox::GetItem(int32_t nIndex) {
+CFWL_ListItem* CFWL_ListBox::GetItem(int32_t nIndex) {
   if (nIndex < 0 || nIndex >= CountItems())
     return nullptr;
 
   return m_ItemArray[nIndex].get();
 }
 
-FWL_Error CFWL_ListBox::SetItemString(IFWL_ListItem* pItem,
+FWL_Error CFWL_ListBox::SetItemString(CFWL_ListItem* pItem,
                                       const CFX_WideStringC& wsText) {
   if (!pItem)
     return FWL_Error::Indefinite;
@@ -148,7 +148,7 @@ FWL_Error CFWL_ListBox::SetItemString(IFWL_ListItem* pItem,
   return FWL_Error::Succeeded;
 }
 
-FWL_Error CFWL_ListBox::GetItemString(IFWL_ListItem* pItem,
+FWL_Error CFWL_ListBox::GetItemString(CFWL_ListItem* pItem,
                                       CFX_WideString& wsText) {
   if (!pItem)
     return FWL_Error::Indefinite;
@@ -156,18 +156,18 @@ FWL_Error CFWL_ListBox::GetItemString(IFWL_ListItem* pItem,
   return FWL_Error::Succeeded;
 }
 
-FWL_Error CFWL_ListBox::SetItemData(IFWL_ListItem* pItem, void* pData) {
+FWL_Error CFWL_ListBox::SetItemData(CFWL_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) {
+void* CFWL_ListBox::GetItemData(CFWL_ListItem* pItem) {
   return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr;
 }
 
-IFWL_ListItem* CFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
+CFWL_ListItem* CFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
   CFX_RectF rtClient;
   GetWidget()->GetClientRect(rtClient);
   fx -= rtClient.left;
@@ -178,7 +178,7 @@ IFWL_ListItem* CFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
   ToListBox(GetWidget())->GetScrollPos(fy, false);
   int32_t nCount = CountItems(nullptr);
   for (int32_t i = 0; i < nCount; i++) {
-    IFWL_ListItem* pItem = GetItem(nullptr, i);
+    CFWL_ListItem* pItem = GetItem(nullptr, i);
     if (!pItem) {
       continue;
     }
@@ -192,7 +192,7 @@ IFWL_ListItem* CFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
   return nullptr;
 }
 
-uint32_t CFWL_ListBox::GetItemStates(IFWL_ListItem* pItem) {
+uint32_t CFWL_ListBox::GetItemStates(CFWL_ListItem* pItem) {
   if (!pItem)
     return 0;
   CFWL_ListItem* pListItem = static_cast<CFWL_ListItem*>(pItem);
@@ -209,7 +209,7 @@ int32_t CFWL_ListBox::CountItems(const IFWL_Widget* pWidget) {
   return pdfium::CollectionSize<int32_t>(m_ItemArray);
 }
 
-IFWL_ListItem* CFWL_ListBox::GetItem(const IFWL_Widget* pWidget,
+CFWL_ListItem* CFWL_ListBox::GetItem(const IFWL_Widget* pWidget,
                                      int32_t nIndex) {
   if (nIndex < 0 || nIndex >= CountItems(pWidget))
     return nullptr;
@@ -217,7 +217,7 @@ IFWL_ListItem* CFWL_ListBox::GetItem(const IFWL_Widget* pWidget,
   return m_ItemArray[nIndex].get();
 }
 
-int32_t CFWL_ListBox::GetItemIndex(IFWL_Widget* pWidget, IFWL_ListItem* pItem) {
+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) {
@@ -227,7 +227,7 @@ int32_t CFWL_ListBox::GetItemIndex(IFWL_Widget* pWidget, IFWL_ListItem* pItem) {
 }
 
 bool CFWL_ListBox::SetItemIndex(IFWL_Widget* pWidget,
-                                IFWL_ListItem* pItem,
+                                CFWL_ListItem* pItem,
                                 int32_t nIndex) {
   if (nIndex < 0 || nIndex >= CountItems(pWidget))
     return false;
@@ -236,14 +236,14 @@ bool CFWL_ListBox::SetItemIndex(IFWL_Widget* pWidget,
 }
 
 uint32_t CFWL_ListBox::GetItemStyles(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem) {
+                                     CFWL_ListItem* pItem) {
   if (!pItem)
     return 0;
   return static_cast<CFWL_ListItem*>(pItem)->m_dwStates;
 }
 
 FWL_Error CFWL_ListBox::GetItemText(IFWL_Widget* pWidget,
-                                    IFWL_ListItem* pItem,
+                                    CFWL_ListItem* pItem,
                                     CFX_WideString& wsText) {
   if (!pItem)
     return FWL_Error::Indefinite;
@@ -252,7 +252,7 @@ FWL_Error CFWL_ListBox::GetItemText(IFWL_Widget* pWidget,
 }
 
 FWL_Error CFWL_ListBox::GetItemRect(IFWL_Widget* pWidget,
-                                    IFWL_ListItem* pItem,
+                                    CFWL_ListItem* pItem,
                                     CFX_RectF& rtItem) {
   if (!pItem)
     return FWL_Error::Indefinite;
@@ -260,12 +260,12 @@ FWL_Error CFWL_ListBox::GetItemRect(IFWL_Widget* pWidget,
   return FWL_Error::Succeeded;
 }
 
-void* CFWL_ListBox::GetItemData(IFWL_Widget* pWidget, IFWL_ListItem* pItem) {
+void* CFWL_ListBox::GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) {
   return pItem ? static_cast<CFWL_ListItem*>(pItem)->m_pData : nullptr;
 }
 
 FWL_Error CFWL_ListBox::SetItemStyles(IFWL_Widget* pWidget,
-                                      IFWL_ListItem* pItem,
+                                      CFWL_ListItem* pItem,
                                       uint32_t dwStyle) {
   if (!pItem)
     return FWL_Error::Indefinite;
@@ -274,7 +274,7 @@ FWL_Error CFWL_ListBox::SetItemStyles(IFWL_Widget* pWidget,
 }
 
 FWL_Error CFWL_ListBox::SetItemText(IFWL_Widget* pWidget,
-                                    IFWL_ListItem* pItem,
+                                    CFWL_ListItem* pItem,
                                     const FX_WCHAR* pszText) {
   if (!pItem)
     return FWL_Error::Indefinite;
@@ -283,7 +283,7 @@ FWL_Error CFWL_ListBox::SetItemText(IFWL_Widget* pWidget,
 }
 
 FWL_Error CFWL_ListBox::SetItemRect(IFWL_Widget* pWidget,
-                                    IFWL_ListItem* pItem,
+                                    CFWL_ListItem* pItem,
                                     const CFX_RectF& rtItem) {
   if (!pItem)
     return FWL_Error::Indefinite;
@@ -296,44 +296,32 @@ FX_FLOAT CFWL_ListBox::GetItemHeight(IFWL_Widget* pWidget) {
 }
 
 CFX_DIBitmap* CFWL_ListBox::GetItemIcon(IFWL_Widget* pWidget,
-                                        IFWL_ListItem* pItem) {
+                                        CFWL_ListItem* pItem) {
   return static_cast<CFWL_ListItem*>(pItem)->m_pDIB;
 }
 
 FWL_Error CFWL_ListBox::GetItemCheckRect(IFWL_Widget* pWidget,
-                                         IFWL_ListItem* pItem,
+                                         CFWL_ListItem* pItem,
                                          CFX_RectF& rtCheck) {
   rtCheck = static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox;
   return FWL_Error::Succeeded;
 }
 
 FWL_Error CFWL_ListBox::SetItemCheckRect(IFWL_Widget* pWidget,
-                                         IFWL_ListItem* pItem,
+                                         CFWL_ListItem* pItem,
                                          const CFX_RectF& rtCheck) {
   static_cast<CFWL_ListItem*>(pItem)->m_rtCheckBox = rtCheck;
   return FWL_Error::Succeeded;
 }
 
 uint32_t CFWL_ListBox::GetItemCheckState(IFWL_Widget* pWidget,
-                                         IFWL_ListItem* pItem) {
+                                         CFWL_ListItem* pItem) {
   return static_cast<CFWL_ListItem*>(pItem)->m_dwCheckState;
 }
 
 FWL_Error CFWL_ListBox::SetItemCheckState(IFWL_Widget* pWidget,
-                                          IFWL_ListItem* pItem,
+                                          CFWL_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 = nullptr;
-  m_pData = nullptr;
-  m_dwCheckState = 0;
-  m_rtCheckBox.Reset();
-}
-
-CFWL_ListItem::~CFWL_ListItem() {}
diff --git a/xfa/fwl/core/cfwl_listbox.h b/xfa/fwl/core/cfwl_listbox.h
index d91ddff328..e28f8df7bb 100644
--- a/xfa/fwl/core/cfwl_listbox.h
+++ b/xfa/fwl/core/cfwl_listbox.h
@@ -15,20 +15,6 @@
 #include "xfa/fwl/core/ifwl_listbox.h"
 #include "xfa/fwl/core/ifwl_widget.h"
 
-class CFWL_ListItem : public IFWL_ListItem {
- public:
-  CFWL_ListItem();
-  ~CFWL_ListItem();
-
-  CFX_RectF m_rtItem;
-  uint32_t m_dwStates;
-  CFX_WideString m_wsText;
-  CFX_DIBitmap* m_pDIB;
-  void* m_pData;
-  uint32_t m_dwCheckState;
-  CFX_RectF m_rtCheckBox;
-};
-
 class CFWL_ListBox : public CFWL_Widget, public IFWL_ListBoxDP {
  public:
   CFWL_ListBox(const IFWL_App*);
@@ -36,27 +22,27 @@ class CFWL_ListBox : public CFWL_Widget, public IFWL_ListBoxDP {
 
   void Initialize();
 
-  FWL_Error AddDIBitmap(CFX_DIBitmap* pDIB, IFWL_ListItem* pItem);
-  IFWL_ListItem* AddString(const CFX_WideStringC& wsAdd, bool bSelect = false);
-  bool DeleteString(IFWL_ListItem* pItem);
+  FWL_Error AddDIBitmap(CFX_DIBitmap* pDIB, CFWL_ListItem* pItem);
+  CFWL_ListItem* AddString(const CFX_WideStringC& wsAdd, bool bSelect = false);
+  bool DeleteString(CFWL_ListItem* pItem);
   void DeleteAll();
   int32_t CountSelItems();
-  IFWL_ListItem* GetSelItem(int32_t nIndexSel);
+  CFWL_ListItem* GetSelItem(int32_t nIndexSel);
   int32_t GetSelIndex(int32_t nIndex);
-  FWL_Error SetSelItem(IFWL_ListItem* pItem, bool bSelect = true);
-  FWL_Error GetItemText(IFWL_ListItem* pItem, CFX_WideString& wsText);
+  FWL_Error SetSelItem(CFWL_ListItem* pItem, bool bSelect = true);
+  FWL_Error GetItemText(CFWL_ListItem* pItem, CFX_WideString& wsText);
   FWL_Error GetScrollPos(FX_FLOAT& fPos, bool bVert = true);
   FWL_Error SetItemHeight(FX_FLOAT fItemHeight);
-  IFWL_ListItem* GetFocusItem();
-  FWL_Error SetFocusItem(IFWL_ListItem* pItem);
+  CFWL_ListItem* GetFocusItem();
+  FWL_Error SetFocusItem(CFWL_ListItem* pItem);
   int32_t CountItems();
-  IFWL_ListItem* GetItem(int32_t nIndex);
-  FWL_Error SetItemString(IFWL_ListItem* pItem, const CFX_WideStringC& wsText);
-  FWL_Error GetItemString(IFWL_ListItem* pItem, CFX_WideString& wsText);
-  FWL_Error SetItemData(IFWL_ListItem* pItem, void* pData);
-  void* GetItemData(IFWL_ListItem* pItem);
-  IFWL_ListItem* GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy);
-  uint32_t GetItemStates(IFWL_ListItem* pItem);
+  CFWL_ListItem* GetItem(int32_t nIndex);
+  FWL_Error SetItemString(CFWL_ListItem* pItem, const CFX_WideStringC& wsText);
+  FWL_Error GetItemString(CFWL_ListItem* pItem, CFX_WideString& wsText);
+  FWL_Error SetItemData(CFWL_ListItem* pItem, void* pData);
+  void* GetItemData(CFWL_ListItem* pItem);
+  CFWL_ListItem* GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy);
+  uint32_t GetItemStates(CFWL_ListItem* pItem);
 
   // IFWL_DataProvider:
   FWL_Error GetCaption(IFWL_Widget* pWidget,
@@ -64,41 +50,41 @@ class CFWL_ListBox : public CFWL_Widget, public IFWL_ListBoxDP {
 
   // IFWL_ListBoxDP:
   int32_t CountItems(const IFWL_Widget* pWidget) override;
-  IFWL_ListItem* GetItem(const IFWL_Widget* pWidget, int32_t nIndex) override;
-  int32_t GetItemIndex(IFWL_Widget* pWidget, IFWL_ListItem* pItem) override;
+  CFWL_ListItem* GetItem(const IFWL_Widget* pWidget, int32_t nIndex) override;
+  int32_t GetItemIndex(IFWL_Widget* pWidget, CFWL_ListItem* pItem) override;
   bool SetItemIndex(IFWL_Widget* pWidget,
-                    IFWL_ListItem* pItem,
+                    CFWL_ListItem* pItem,
                     int32_t nIndex) override;
-  uint32_t GetItemStyles(IFWL_Widget* pWidget, IFWL_ListItem* pItem) override;
+  uint32_t GetItemStyles(IFWL_Widget* pWidget, CFWL_ListItem* pItem) override;
   FWL_Error GetItemText(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         CFX_WideString& wsText) override;
   FWL_Error GetItemRect(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         CFX_RectF& rtItem) override;
-  void* GetItemData(IFWL_Widget* pWidget, IFWL_ListItem* pItem) override;
+  void* GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) override;
   FWL_Error SetItemStyles(IFWL_Widget* pWidget,
-                          IFWL_ListItem* pItem,
+                          CFWL_ListItem* pItem,
                           uint32_t dwStyle) override;
   FWL_Error SetItemText(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         const FX_WCHAR* pszText) override;
   FWL_Error SetItemRect(IFWL_Widget* pWidget,
-                        IFWL_ListItem* pItem,
+                        CFWL_ListItem* pItem,
                         const CFX_RectF& rtItem) override;
   FX_FLOAT GetItemHeight(IFWL_Widget* pWidget) override;
   CFX_DIBitmap* GetItemIcon(IFWL_Widget* pWidget,
-                            IFWL_ListItem* pItem) override;
+                            CFWL_ListItem* pItem) override;
   FWL_Error GetItemCheckRect(IFWL_Widget* pWidget,
-                             IFWL_ListItem* pItem,
+                             CFWL_ListItem* pItem,
                              CFX_RectF& rtCheck) override;
   FWL_Error SetItemCheckRect(IFWL_Widget* pWidget,
-                             IFWL_ListItem* pItem,
+                             CFWL_ListItem* pItem,
                              const CFX_RectF& rtCheck) override;
   uint32_t GetItemCheckState(IFWL_Widget* pWidget,
-                             IFWL_ListItem* pItem) override;
+                             CFWL_ListItem* pItem) override;
   FWL_Error SetItemCheckState(IFWL_Widget* pWidget,
-                              IFWL_ListItem* pItem,
+                              CFWL_ListItem* pItem,
                               uint32_t dwCheckState) override;
 
  private:
diff --git a/xfa/fwl/core/cfwl_listitem.cpp b/xfa/fwl/core/cfwl_listitem.cpp
new file mode 100644
index 0000000000..4419839024
--- /dev/null
+++ b/xfa/fwl/core/cfwl_listitem.cpp
@@ -0,0 +1,19 @@
+// Copyright 2016 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_listitem.h"
+
+CFWL_ListItem::CFWL_ListItem()
+    : m_dwStates(0),
+      m_wsText(L""),
+      m_pDIB(nullptr),
+      m_pData(nullptr),
+      m_dwCheckState(0) {
+  m_rtCheckBox.Reset();
+  m_rtItem.Reset();
+}
+
+CFWL_ListItem::~CFWL_ListItem() {}
diff --git a/xfa/fwl/core/cfwl_listitem.h b/xfa/fwl/core/cfwl_listitem.h
new file mode 100644
index 0000000000..0a5f0a3088
--- /dev/null
+++ b/xfa/fwl/core/cfwl_listitem.h
@@ -0,0 +1,30 @@
+// Copyright 2016 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
+
+#ifndef XFA_FWL_CORE_CFWL_LISTITEM_H_
+#define XFA_FWL_CORE_CFWL_LISTITEM_H_
+
+#include "core/fxcrt/fx_coordinates.h"
+#include "core/fxcrt/fx_string.h"
+
+class CFX_DIBitmap;
+
+class CFWL_ListItem {
+ public:
+  CFWL_ListItem();
+  ~CFWL_ListItem();
+
+  CFX_RectF m_rtItem;
+  uint32_t m_dwStates;
+  uint32_t m_dwStyles;
+  CFX_WideString m_wsText;
+  CFX_DIBitmap* m_pDIB;
+  void* m_pData;
+  uint32_t m_dwCheckState;
+  CFX_RectF m_rtCheckBox;
+};
+
+#endif  // XFA_FWL_CORE_CFWL_LISTITEM_H_
diff --git a/xfa/fwl/core/ifwl_combobox.cpp b/xfa/fwl/core/ifwl_combobox.cpp
index 6d0a814157..ad42ce23eb 100644
--- a/xfa/fwl/core/ifwl_combobox.cpp
+++ b/xfa/fwl/core/ifwl_combobox.cpp
@@ -192,7 +192,7 @@ FWL_Error IFWL_ComboBox::DrawWidget(CFX_Graphics* pGraphics,
       CFX_WideString wsText;
       IFWL_ComboBoxDP* pData =
           static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-      IFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
+      CFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
       m_pListBox->GetItemText(hItem, wsText);
       CFWL_ThemeText theme_text;
       theme_text.m_pWidget = this;
@@ -251,7 +251,7 @@ FWL_Error IFWL_ComboBox::SetCurSel(int32_t iSel) {
       CFX_WideString wsText;
       IFWL_ComboBoxDP* pData =
           static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-      IFWL_ListItem* hItem = pData->GetItem(this, iSel);
+      CFWL_ListItem* hItem = pData->GetItem(this, iSel);
       m_pListBox->GetItemText(hItem, wsText);
       m_pEdit->SetText(wsText);
     }
@@ -291,7 +291,7 @@ FWL_Error IFWL_ComboBox::GetEditText(CFX_WideString& wsText,
   } else if (m_pListBox) {
     IFWL_ComboBoxDP* pData =
         static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-    IFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
+    CFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
     return m_pListBox->GetItemText(hItem, wsText);
   }
   return FWL_Error::Indefinite;
@@ -553,7 +553,7 @@ void IFWL_ComboBox::SynchrEditText(int32_t iListItem) {
   CFX_WideString wsText;
   IFWL_ComboBoxDP* pData =
       static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-  IFWL_ListItem* hItem = pData->GetItem(this, iListItem);
+  CFWL_ListItem* hItem = pData->GetItem(this, iListItem);
   m_pListBox->GetItemText(hItem, wsText);
   m_pEdit->SetText(wsText);
   m_pEdit->Update();
@@ -582,7 +582,7 @@ void IFWL_ComboBox::Layout() {
       CFX_WideString wsText;
       IFWL_ComboBoxDP* pData =
           static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-      IFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
+      CFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
       m_pListBox->GetItemText(hItem, wsText);
       m_pEdit->LockUpdate();
       m_pEdit->SetText(wsText);
@@ -667,7 +667,7 @@ void IFWL_ComboBox::ProcessSelChanged(bool bLButtonUp) {
   if (bDropDown) {
     IFWL_ComboBoxDP* pData =
         static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-    IFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
+    CFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
     if (hItem) {
       CFX_WideString wsText;
       pData->GetItemText(this, hItem, wsText);
@@ -902,7 +902,7 @@ void IFWL_ComboBox::DisForm_Layout() {
       CFX_WideString wsText;
       IFWL_ComboBoxDP* pData =
           static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-      IFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
+      CFWL_ListItem* hItem = pData->GetItem(this, m_iCurSel);
       m_pListBox->GetItemText(hItem, wsText);
       m_pEdit->LockUpdate();
       m_pEdit->SetText(wsText);
@@ -1103,7 +1103,7 @@ void IFWL_ComboBox::DoSubCtrlKey(CFWL_MsgKey* pMsg) {
         CFX_WideString wsTemp;
         IFWL_ComboBoxDP* pData =
             static_cast<IFWL_ComboBoxDP*>(m_pProperties->m_pDataProvider);
-        IFWL_ListItem* hItem = pData->GetItem(this, iCurSel);
+        CFWL_ListItem* hItem = pData->GetItem(this, iCurSel);
         m_pListBox->GetItemText(hItem, wsTemp);
         bMatchEqual = wsText == wsTemp;
       }
@@ -1240,7 +1240,7 @@ void IFWL_ComboBox::DisForm_OnKey(CFWL_MsgKey* pMsg) {
       iCurSel = pComboList->MatchItem(wsText);
       if (iCurSel >= 0) {
         CFX_WideString wsTemp;
-        IFWL_ListItem* item = m_pListBox->GetSelItem(iCurSel);
+        CFWL_ListItem* item = m_pListBox->GetSelItem(iCurSel);
         m_pListBox->GetItemText(item, wsTemp);
         bMatchEqual = wsText == wsTemp;
       }
diff --git a/xfa/fwl/core/ifwl_combolist.cpp b/xfa/fwl/core/ifwl_combolist.cpp
index 04fefc628a..535ed68d62 100644
--- a/xfa/fwl/core/ifwl_combolist.cpp
+++ b/xfa/fwl/core/ifwl_combolist.cpp
@@ -28,7 +28,7 @@ int32_t IFWL_ComboList::MatchItem(const CFX_WideString& wsMatch) {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* hItem = pData->GetItem(this, i);
+    CFWL_ListItem* hItem = pData->GetItem(this, i);
     CFX_WideString wsText;
     pData->GetItemText(this, hItem, wsText);
     FX_STRSIZE pos = wsText.Find(wsMatch.c_str());
@@ -44,10 +44,10 @@ void IFWL_ComboList::ChangeSelected(int32_t iSel) {
     return;
   IFWL_ListBoxDP* pData =
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
-  IFWL_ListItem* hItem = pData->GetItem(this, iSel);
+  CFWL_ListItem* hItem = pData->GetItem(this, iSel);
   CFX_RectF rtInvalidate;
   rtInvalidate.Reset();
-  IFWL_ListItem* hOld = GetSelItem(0);
+  CFWL_ListItem* hOld = GetSelItem(0);
   int32_t iOld = pData->GetItemIndex(this, hOld);
   if (iOld == iSel) {
     return;
@@ -59,7 +59,7 @@ void IFWL_ComboList::ChangeSelected(int32_t iSel) {
     CFX_RectF rect;
     GetItemRect(iSel, rect);
     rtInvalidate.Union(rect);
-    IFWL_ListItem* hSel = pData->GetItem(this, iSel);
+    CFWL_ListItem* hSel = pData->GetItem(this, iSel);
     SetSelItem(hSel, true);
   }
   if (!rtInvalidate.IsEmpty()) {
@@ -76,7 +76,7 @@ int32_t IFWL_ComboList::CountItems() {
 void IFWL_ComboList::GetItemRect(int32_t nIndex, CFX_RectF& rtItem) {
   IFWL_ListBoxDP* pData =
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
-  IFWL_ListItem* hItem = pData->GetItem(this, nIndex);
+  CFWL_ListItem* hItem = pData->GetItem(this, nIndex);
   pData->GetItemRect(this, hItem, rtItem);
 }
 
@@ -163,7 +163,7 @@ int32_t IFWL_ComboList::OnDropListMouseMove(CFWL_MsgMouse* pMsg) {
         return 1;
       }
     }
-    IFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
+    CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
     if (hItem) {
       if (!m_pProperties->m_pDataProvider)
         return 0;
@@ -207,7 +207,7 @@ int32_t IFWL_ComboList::OnDropListLButtonUp(CFWL_MsgMouse* pMsg) {
       }
     }
     pOuter->ShowDropList(false);
-    IFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
+    CFWL_ListItem* hItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
     if (hItem)
       pOuter->ProcessSelChanged(true);
   }
@@ -254,7 +254,7 @@ void IFWL_ComboList::OnDropListKeyDown(CFWL_MsgKey* pKey) {
       IFWL_ComboBox* pOuter = static_cast<IFWL_ComboBox*>(m_pOuter);
       IFWL_ListBoxDP* pData =
           static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
-      IFWL_ListItem* hItem =
+      CFWL_ListItem* hItem =
           pData->GetItem(this, pOuter->GetCurrentSelection());
       hItem = GetItem(hItem, dwKeyCode);
       if (!hItem) {
diff --git a/xfa/fwl/core/ifwl_listbox.cpp b/xfa/fwl/core/ifwl_listbox.cpp
index f0d2f019d3..f54c089a9a 100644
--- a/xfa/fwl/core/ifwl_listbox.cpp
+++ b/xfa/fwl/core/ifwl_listbox.cpp
@@ -151,7 +151,7 @@ int32_t IFWL_ListBox::CountSelItems() {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     if (!pItem) {
       continue;
     }
@@ -163,7 +163,7 @@ int32_t IFWL_ListBox::CountSelItems() {
   return iRet;
 }
 
-IFWL_ListItem* IFWL_ListBox::GetSelItem(int32_t nIndexSel) {
+CFWL_ListItem* IFWL_ListBox::GetSelItem(int32_t nIndexSel) {
   if (!m_pProperties->m_pDataProvider)
     return nullptr;
   int32_t index = 0;
@@ -171,7 +171,7 @@ IFWL_ListItem* IFWL_ListBox::GetSelItem(int32_t nIndexSel) {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     if (!pItem) {
       return nullptr;
     }
@@ -195,7 +195,7 @@ int32_t IFWL_ListBox::GetSelIndex(int32_t nIndex) {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     if (!pItem) {
       return -1;
     }
@@ -211,7 +211,7 @@ int32_t IFWL_ListBox::GetSelIndex(int32_t nIndex) {
   return -1;
 }
 
-FWL_Error IFWL_ListBox::SetSelItem(IFWL_ListItem* pItem, bool bSelect) {
+FWL_Error IFWL_ListBox::SetSelItem(CFWL_ListItem* pItem, bool bSelect) {
   if (!m_pProperties->m_pDataProvider)
     return FWL_Error::Indefinite;
   if (!pItem) {
@@ -231,7 +231,7 @@ FWL_Error IFWL_ListBox::SetSelItem(IFWL_ListItem* pItem, bool bSelect) {
   return FWL_Error::Succeeded;
 }
 
-FWL_Error IFWL_ListBox::GetItemText(IFWL_ListItem* pItem,
+FWL_Error IFWL_ListBox::GetItemText(CFWL_ListItem* pItem,
                                     CFX_WideString& wsText) {
   if (!m_pProperties->m_pDataProvider)
     return FWL_Error::Indefinite;
@@ -253,8 +253,8 @@ FWL_Error IFWL_ListBox::GetScrollPos(FX_FLOAT& fPos, bool bVert) {
   return FWL_Error::Indefinite;
 }
 
-IFWL_ListItem* IFWL_ListBox::GetItem(IFWL_ListItem* pItem, uint32_t dwKeyCode) {
-  IFWL_ListItem* hRet = nullptr;
+CFWL_ListItem* IFWL_ListBox::GetItem(CFWL_ListItem* pItem, uint32_t dwKeyCode) {
+  CFWL_ListItem* hRet = nullptr;
   switch (dwKeyCode) {
     case FWL_VKEY_Up:
     case FWL_VKEY_Down:
@@ -283,8 +283,8 @@ IFWL_ListItem* IFWL_ListBox::GetItem(IFWL_ListItem* pItem, uint32_t dwKeyCode) {
   return hRet;
 }
 
-void IFWL_ListBox::SetSelection(IFWL_ListItem* hStart,
-                                IFWL_ListItem* hEnd,
+void IFWL_ListBox::SetSelection(CFWL_ListItem* hStart,
+                                CFWL_ListItem* hEnd,
                                 bool bSelected) {
   IFWL_ListBoxDP* pData =
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
@@ -298,17 +298,17 @@ void IFWL_ListBox::SetSelection(IFWL_ListItem* hStart,
   if (bSelected) {
     int32_t iCount = pData->CountItems(this);
     for (int32_t i = 0; i < iCount; i++) {
-      IFWL_ListItem* pItem = pData->GetItem(this, i);
+      CFWL_ListItem* pItem = pData->GetItem(this, i);
       SetSelectionDirect(pItem, false);
     }
   }
   for (; iStart <= iEnd; iStart++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, iStart);
+    CFWL_ListItem* pItem = pData->GetItem(this, iStart);
     SetSelectionDirect(pItem, bSelected);
   }
 }
 
-void IFWL_ListBox::SetSelectionDirect(IFWL_ListItem* pItem, bool bSelect) {
+void IFWL_ListBox::SetSelectionDirect(CFWL_ListItem* pItem, bool bSelect) {
   IFWL_ListBoxDP* pData =
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   uint32_t dwOldStyle = pData->GetItemStyles(this, pItem);
@@ -317,7 +317,7 @@ void IFWL_ListBox::SetSelectionDirect(IFWL_ListItem* pItem, bool bSelect) {
   pData->SetItemStyles(this, pItem, dwOldStyle);
 }
 
-bool IFWL_ListBox::IsItemSelected(IFWL_ListItem* pItem) {
+bool IFWL_ListBox::IsItemSelected(CFWL_ListItem* pItem) {
   IFWL_ListBoxDP* pData =
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   uint32_t dwState = pData->GetItemStyles(this, pItem);
@@ -330,7 +330,7 @@ void IFWL_ListBox::ClearSelection() {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     uint32_t dwState = pData->GetItemStyles(this, pItem);
     if (!(dwState & FWL_ITEMSTATE_LTB_Selected))
       continue;
@@ -349,18 +349,18 @@ void IFWL_ListBox::SelectAll() {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   if (iCount > 0) {
-    IFWL_ListItem* pItemStart = pData->GetItem(this, 0);
-    IFWL_ListItem* pItemEnd = pData->GetItem(this, iCount - 1);
+    CFWL_ListItem* pItemStart = pData->GetItem(this, 0);
+    CFWL_ListItem* pItemEnd = pData->GetItem(this, iCount - 1);
     SetSelection(pItemStart, pItemEnd, false);
   }
 }
 
-IFWL_ListItem* IFWL_ListBox::GetFocusedItem() {
+CFWL_ListItem* IFWL_ListBox::GetFocusedItem() {
   IFWL_ListBoxDP* pData =
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     if (!pItem)
       return nullptr;
     if (pData->GetItemStyles(this, pItem) & FWL_ITEMSTATE_LTB_Focused) {
@@ -370,10 +370,10 @@ IFWL_ListItem* IFWL_ListBox::GetFocusedItem() {
   return nullptr;
 }
 
-void IFWL_ListBox::SetFocusItem(IFWL_ListItem* pItem) {
+void IFWL_ListBox::SetFocusItem(CFWL_ListItem* pItem) {
   IFWL_ListBoxDP* pData =
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
-  IFWL_ListItem* hFocus = GetFocusedItem();
+  CFWL_ListItem* hFocus = GetFocusedItem();
   if (pItem != hFocus) {
     if (hFocus) {
       uint32_t dwStyle = pData->GetItemStyles(this, hFocus);
@@ -388,7 +388,7 @@ void IFWL_ListBox::SetFocusItem(IFWL_ListItem* pItem) {
   }
 }
 
-IFWL_ListItem* IFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
+CFWL_ListItem* IFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
   fx -= m_rtConent.left, fy -= m_rtConent.top;
   FX_FLOAT fPosX = 0.0f;
   if (m_pHorzScrollBar) {
@@ -402,7 +402,7 @@ IFWL_ListItem* IFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t nCount = pData->CountItems(this);
   for (int32_t i = 0; i < nCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     if (!pItem) {
       continue;
     }
@@ -416,7 +416,7 @@ IFWL_ListItem* IFWL_ListBox::GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy) {
   return nullptr;
 }
 
-bool IFWL_ListBox::GetItemCheckRect(IFWL_ListItem* pItem, CFX_RectF& rtCheck) {
+bool IFWL_ListBox::GetItemCheckRect(CFWL_ListItem* pItem, CFX_RectF& rtCheck) {
   if (!m_pProperties->m_pDataProvider)
     return false;
   if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) {
@@ -428,7 +428,7 @@ bool IFWL_ListBox::GetItemCheckRect(IFWL_ListItem* pItem, CFX_RectF& rtCheck) {
   return true;
 }
 
-bool IFWL_ListBox::GetItemChecked(IFWL_ListItem* pItem) {
+bool IFWL_ListBox::GetItemChecked(CFWL_ListItem* pItem) {
   if (!m_pProperties->m_pDataProvider)
     return false;
   if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) {
@@ -439,7 +439,7 @@ bool IFWL_ListBox::GetItemChecked(IFWL_ListItem* pItem) {
   return !!(pData->GetItemCheckState(this, pItem) & FWL_ITEMSTATE_LTB_Checked);
 }
 
-bool IFWL_ListBox::SetItemChecked(IFWL_ListItem* pItem, bool bChecked) {
+bool IFWL_ListBox::SetItemChecked(CFWL_ListItem* pItem, bool bChecked) {
   if (!m_pProperties->m_pDataProvider)
     return false;
   if (!(m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check)) {
@@ -452,7 +452,7 @@ bool IFWL_ListBox::SetItemChecked(IFWL_ListItem* pItem, bool bChecked) {
   return true;
 }
 
-bool IFWL_ListBox::ScrollToVisible(IFWL_ListItem* pItem) {
+bool IFWL_ListBox::ScrollToVisible(CFWL_ListItem* pItem) {
   if (!m_pVertScrollBar)
     return false;
   CFX_RectF rtItem;
@@ -525,7 +525,7 @@ void IFWL_ListBox::DrawItems(CFX_Graphics* pGraphics,
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     if (!pItem) {
       continue;
     }
@@ -557,7 +557,7 @@ void IFWL_ListBox::DrawItems(CFX_Graphics* pGraphics,
 
 void IFWL_ListBox::DrawItem(CFX_Graphics* pGraphics,
                             IFWL_ThemeProvider* pTheme,
-                            IFWL_ListItem* pItem,
+                            CFWL_ListItem* pItem,
                             int32_t Index,
                             const CFX_RectF& rtItem,
                             const CFX_Matrix* pMatrix) {
@@ -679,7 +679,7 @@ CFX_SizeF IFWL_ListBox::CalcSize(bool bAutoSize) {
         static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
     int32_t iCount = pData->CountItems(this);
     for (int32_t i = 0; i < iCount; i++) {
-      IFWL_ListItem* pItem = pData->GetItem(this, i);
+      CFWL_ListItem* pItem = pData->GetItem(this, i);
       if (!bAutoSize) {
         CFX_RectF rtItem;
         rtItem.Set(m_rtClient.left, m_rtClient.top + fs.y, 0, 0);
@@ -710,7 +710,7 @@ CFX_SizeF IFWL_ListBox::CalcSize(bool bAutoSize) {
 
     int32_t iCount = pData->CountItems(this);
     for (int32_t i = 0; i < iCount; i++) {
-      IFWL_ListItem* htem = pData->GetItem(this, i);
+      CFWL_ListItem* htem = pData->GetItem(this, i);
       GetItemSize(fs, htem, fWidth, m_fItemHeight, bAutoSize);
     }
   }
@@ -815,7 +815,7 @@ CFX_SizeF IFWL_ListBox::CalcSize(bool bAutoSize) {
 }
 
 void IFWL_ListBox::GetItemSize(CFX_SizeF& size,
-                               IFWL_ListItem* pItem,
+                               CFWL_ListItem* pItem,
                                FX_FLOAT fWidth,
                                FX_FLOAT fItemHeight,
                                bool bAutoSize) {
@@ -839,7 +839,7 @@ FX_FLOAT IFWL_ListBox::GetMaxTextWidth() {
       static_cast<IFWL_ListBoxDP*>(m_pProperties->m_pDataProvider);
   int32_t iCount = pData->CountItems(this);
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* pItem = pData->GetItem(this, i);
+    CFWL_ListItem* pItem = pData->GetItem(this, i);
     if (!pItem) {
       continue;
     }
@@ -899,7 +899,7 @@ void IFWL_ListBox::ProcessSelChanged() {
   CFX_Int32Array arrSels;
   int32_t iCount = CountSelItems();
   for (int32_t i = 0; i < iCount; i++) {
-    IFWL_ListItem* item = GetSelItem(i);
+    CFWL_ListItem* item = GetSelItem(i);
     if (!item) {
       continue;
     }
@@ -991,7 +991,7 @@ void IFWL_ListBox::OnLButtonDown(CFWL_MsgMouse* pMsg) {
   if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0)
     SetFocus(true);
 
-  IFWL_ListItem* pItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
+  CFWL_ListItem* pItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
   if (!pItem)
     return;
 
@@ -1013,7 +1013,7 @@ void IFWL_ListBox::OnLButtonDown(CFWL_MsgMouse* pMsg) {
     SetSelection(pItem, pItem, true);
   }
   if (m_pProperties->m_dwStyleExes & FWL_STYLEEXT_LTB_Check) {
-    IFWL_ListItem* hSelectedItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
+    CFWL_ListItem* hSelectedItem = GetItemAtPoint(pMsg->m_fx, pMsg->m_fy);
     CFX_RectF rtCheck;
     GetItemCheckRect(hSelectedItem, rtCheck);
     bool bChecked = GetItemChecked(pItem);
@@ -1051,7 +1051,7 @@ void IFWL_ListBox::OnKeyDown(CFWL_MsgKey* pMsg) {
     case FWL_VKEY_Down:
     case FWL_VKEY_Home:
     case FWL_VKEY_End: {
-      IFWL_ListItem* pItem = GetFocusedItem();
+      CFWL_ListItem* pItem = GetFocusedItem();
       pItem = GetItem(pItem, dwKeyCode);
       bool bShift = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Shift);
       bool bCtrl = !!(pMsg->m_dwFlags & FWL_KEYFLAG_Ctrl);
@@ -1065,7 +1065,7 @@ void IFWL_ListBox::OnKeyDown(CFWL_MsgKey* pMsg) {
   }
 }
 
-void IFWL_ListBox::OnVK(IFWL_ListItem* pItem, bool bShift, bool bCtrl) {
+void IFWL_ListBox::OnVK(CFWL_ListItem* pItem, bool bShift, bool bCtrl) {
   if (!pItem)
     return;
 
diff --git a/xfa/fwl/core/ifwl_listbox.h b/xfa/fwl/core/ifwl_listbox.h
index 99006caa18..943c064afe 100644
--- a/xfa/fwl/core/ifwl_listbox.h
+++ b/xfa/fwl/core/ifwl_listbox.h
@@ -10,6 +10,7 @@
 #include <memory>
 
 #include "xfa/fwl/core/cfwl_event.h"
+#include "xfa/fwl/core/cfwl_listitem.h"
 #include "xfa/fwl/core/cfwl_widgetproperties.h"
 #include "xfa/fwl/core/ifwl_dataprovider.h"
 #include "xfa/fwl/core/ifwl_edit.h"
@@ -48,55 +49,53 @@ FWL_EVENT_DEF(CFWL_EvtLtbDrawItem,
               int32_t m_index;
               CFX_RectF m_rect;)
 
-class IFWL_ListItem {};
-
 class IFWL_ListBoxDP : public IFWL_DataProvider {
  public:
   virtual int32_t CountItems(const IFWL_Widget* pWidget) = 0;
-  virtual IFWL_ListItem* GetItem(const IFWL_Widget* pWidget,
+  virtual CFWL_ListItem* GetItem(const IFWL_Widget* pWidget,
                                  int32_t nIndex) = 0;
-  virtual int32_t GetItemIndex(IFWL_Widget* pWidget, IFWL_ListItem* pItem) = 0;
+  virtual int32_t GetItemIndex(IFWL_Widget* pWidget, CFWL_ListItem* pItem) = 0;
   virtual bool SetItemIndex(IFWL_Widget* pWidget,
-                            IFWL_ListItem* pItem,
+                            CFWL_ListItem* pItem,
                             int32_t nIndex) = 0;
   virtual uint32_t GetItemStyles(IFWL_Widget* pWidget,
-                                 IFWL_ListItem* pItem) = 0;
+                                 CFWL_ListItem* pItem) = 0;
   virtual FWL_Error GetItemText(IFWL_Widget* pWidget,
-                                IFWL_ListItem* pItem,
+                                CFWL_ListItem* pItem,
                                 CFX_WideString& wsText) = 0;
   virtual FWL_Error GetItemRect(IFWL_Widget* pWidget,
-                                IFWL_ListItem* pItem,
+                                CFWL_ListItem* pItem,
                                 CFX_RectF& rtItem) = 0;
-  virtual void* GetItemData(IFWL_Widget* pWidget, IFWL_ListItem* pItem) = 0;
+  virtual void* GetItemData(IFWL_Widget* pWidget, CFWL_ListItem* pItem) = 0;
   virtual FWL_Error SetItemStyles(IFWL_Widget* pWidget,
-                                  IFWL_ListItem* pItem,
+                                  CFWL_ListItem* pItem,
                                   uint32_t dwStyle) = 0;
   virtual FWL_Error SetItemText(IFWL_Widget* pWidget,
-                                IFWL_ListItem* pItem,
+                                CFWL_ListItem* pItem,
                                 const FX_WCHAR* pszText) = 0;
   virtual FWL_Error SetItemRect(IFWL_Widget* pWidget,
-                                IFWL_ListItem* pItem,
+                                CFWL_ListItem* pItem,
                                 const CFX_RectF& rtItem) = 0;
   virtual FX_FLOAT GetItemHeight(IFWL_Widget* pWidget) = 0;
   virtual CFX_DIBitmap* GetItemIcon(IFWL_Widget* pWidget,
-                                    IFWL_ListItem* pItem) = 0;
+                                    CFWL_ListItem* pItem) = 0;
   virtual FWL_Error GetItemCheckRect(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem,
+                                     CFWL_ListItem* pItem,
                                      CFX_RectF& rtCheck) = 0;
   virtual FWL_Error SetItemCheckRect(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem,
+                                     CFWL_ListItem* pItem,
                                      const CFX_RectF& rtCheck) = 0;
   virtual uint32_t GetItemCheckState(IFWL_Widget* pWidget,
-                                     IFWL_ListItem* pItem) = 0;
+                                     CFWL_ListItem* pItem) = 0;
   virtual FWL_Error SetItemCheckState(IFWL_Widget* pWidget,
-                                      IFWL_ListItem* pItem,
+                                      CFWL_ListItem* pItem,
                                       uint32_t dwCheckState) = 0;
 };
 
 class IFWL_ListBoxCompare {
  public:
   virtual ~IFWL_ListBoxCompare() {}
-  virtual int32_t Compare(IFWL_ListItem* hLeft, IFWL_ListItem* hRight) = 0;
+  virtual int32_t Compare(CFWL_ListItem* hLeft, CFWL_ListItem* hRight) = 0;
 };
 
 class IFWL_ListBox : public IFWL_Widget {
@@ -120,29 +119,29 @@ class IFWL_ListBox : public IFWL_Widget {
                     const CFX_Matrix* pMatrix) override;
 
   int32_t CountSelItems();
-  IFWL_ListItem* GetSelItem(int32_t nIndexSel);
+  CFWL_ListItem* GetSelItem(int32_t nIndexSel);
   int32_t GetSelIndex(int32_t nIndex);
-  FWL_Error SetSelItem(IFWL_ListItem* hItem, bool bSelect = true);
-  FWL_Error GetItemText(IFWL_ListItem* hItem, CFX_WideString& wsText);
+  FWL_Error SetSelItem(CFWL_ListItem* hItem, bool bSelect = true);
+  FWL_Error GetItemText(CFWL_ListItem* hItem, CFX_WideString& wsText);
   FWL_Error GetScrollPos(FX_FLOAT& fPos, bool bVert = true);
   FWL_Error* Sort(IFWL_ListBoxCompare* pCom);
 
  protected:
   friend class CFWL_ListBoxImpDelegate;
 
-  IFWL_ListItem* GetItem(IFWL_ListItem* hItem, uint32_t dwKeyCode);
-  void SetSelection(IFWL_ListItem* hStart, IFWL_ListItem* hEnd, bool bSelected);
-  void SetSelectionDirect(IFWL_ListItem* hItem, bool bSelect);
-  bool IsItemSelected(IFWL_ListItem* hItem);
+  CFWL_ListItem* GetItem(CFWL_ListItem* hItem, uint32_t dwKeyCode);
+  void SetSelection(CFWL_ListItem* hStart, CFWL_ListItem* hEnd, bool bSelected);
+  void SetSelectionDirect(CFWL_ListItem* hItem, bool bSelect);
+  bool IsItemSelected(CFWL_ListItem* hItem);
   void ClearSelection();
   void SelectAll();
-  IFWL_ListItem* GetFocusedItem();
-  void SetFocusItem(IFWL_ListItem* hItem);
-  IFWL_ListItem* GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy);
-  bool GetItemCheckRect(IFWL_ListItem* hItem, CFX_RectF& rtCheck);
-  bool SetItemChecked(IFWL_ListItem* hItem, bool bChecked);
-  bool GetItemChecked(IFWL_ListItem* hItem);
-  bool ScrollToVisible(IFWL_ListItem* hItem);
+  CFWL_ListItem* GetFocusedItem();
+  void SetFocusItem(CFWL_ListItem* hItem);
+  CFWL_ListItem* GetItemAtPoint(FX_FLOAT fx, FX_FLOAT fy);
+  bool GetItemCheckRect(CFWL_ListItem* hItem, CFX_RectF& rtCheck);
+  bool SetItemChecked(CFWL_ListItem* hItem, bool bChecked);
+  bool GetItemChecked(CFWL_ListItem* hItem);
+  bool ScrollToVisible(CFWL_ListItem* hItem);
   void DrawBkground(CFX_Graphics* pGraphics,
                     IFWL_ThemeProvider* pTheme,
                     const CFX_Matrix* pMatrix = nullptr);
@@ -151,14 +150,14 @@ class IFWL_ListBox : public IFWL_Widget {
                  const CFX_Matrix* pMatrix = nullptr);
   void DrawItem(CFX_Graphics* pGraphics,
                 IFWL_ThemeProvider* pTheme,
-                IFWL_ListItem* hItem,
+                CFWL_ListItem* hItem,
                 int32_t Index,
                 const CFX_RectF& rtItem,
                 const CFX_Matrix* pMatrix = nullptr);
   void DrawStatic(CFX_Graphics* pGraphics, IFWL_ThemeProvider* pTheme);
   CFX_SizeF CalcSize(bool bAutoSize = false);
   void GetItemSize(CFX_SizeF& size,
-                   IFWL_ListItem* hItem,
+                   CFWL_ListItem* hItem,
                    FX_FLOAT fWidth,
                    FX_FLOAT fHeight,
                    bool bAutoSize = false);
@@ -176,7 +175,7 @@ class IFWL_ListBox : public IFWL_Widget {
   std::unique_ptr<IFWL_ScrollBar> m_pVertScrollBar;
   uint32_t m_dwTTOStyles;
   int32_t m_iTTOAligns;
-  IFWL_ListItem* m_hAnchor;
+  CFWL_ListItem* m_hAnchor;
   FX_FLOAT m_fItemHeight;
   FX_FLOAT m_fScorllBarWidth;
   bool m_bLButtonDown;
@@ -188,7 +187,7 @@ class IFWL_ListBox : public IFWL_Widget {
   void OnLButtonUp(CFWL_MsgMouse* pMsg);
   void OnMouseWheel(CFWL_MsgMouseWheel* pMsg);
   void OnKeyDown(CFWL_MsgKey* pMsg);
-  void OnVK(IFWL_ListItem* hItem, bool bShift, bool bCtrl);
+  void OnVK(CFWL_ListItem* hItem, bool bShift, bool bCtrl);
   bool OnScroll(IFWL_ScrollBar* pScrollBar, uint32_t dwCode, FX_FLOAT fPos);
   void DispatchSelChangedEv();
 };