Remove fxedit place classes in pdfwindow/

This CL removes the fpdfsdk/fxedit folder and moves the code to
fpdfsdk/pdfwindow which is the primary consumer. The classes were
renamed from CFX_* to CPWL_*.

Change-Id: I6c6178adccf978193bbb9685204657ebd3f438bb
Reviewed-on: https://pdfium-review.googlesource.com/8552
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>

14 files changed, 421 insertions, 419 deletions

diff --git a/BUILD.gn b/BUILD.gn
index 313714d668..7d5232ceb0 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -187,7 +187,6 @@ static_library("pdfium") {
     ":fpdftext",
     ":fxcodec",
     ":fxcrt",
-    ":fxedit",
     ":fxge",
     ":javascript",
     ":pdfwindow",
@@ -1077,19 +1076,6 @@ static_library("fxge") {
   }
 }
 
-static_library("fxedit") {
-  sources = [
-    "fpdfsdk/fxedit/fxet_edit.cpp",
-    "fpdfsdk/fxedit/fxet_edit.h",
-    "fpdfsdk/fxedit/fxet_list.cpp",
-    "fpdfsdk/fxedit/fxet_list.h",
-  ]
-  configs += [ ":pdfium_core_config" ]
-  deps = [
-    ":fxcrt",
-  ]
-}
-
 static_library("pdfwindow") {
   sources = [
     "fpdfsdk/pdfwindow/cpwl_appstream.cpp",
@@ -1104,12 +1090,16 @@ static_library("pdfwindow") {
     "fpdfsdk/pdfwindow/cpwl_edit.h",
     "fpdfsdk/pdfwindow/cpwl_edit_ctrl.cpp",
     "fpdfsdk/pdfwindow/cpwl_edit_ctrl.h",
+    "fpdfsdk/pdfwindow/cpwl_edit_impl.cpp",
+    "fpdfsdk/pdfwindow/cpwl_edit_impl.h",
     "fpdfsdk/pdfwindow/cpwl_font_map.cpp",
     "fpdfsdk/pdfwindow/cpwl_font_map.h",
     "fpdfsdk/pdfwindow/cpwl_icon.cpp",
     "fpdfsdk/pdfwindow/cpwl_icon.h",
     "fpdfsdk/pdfwindow/cpwl_list_box.cpp",
     "fpdfsdk/pdfwindow/cpwl_list_box.h",
+    "fpdfsdk/pdfwindow/cpwl_list_impl.cpp",
+    "fpdfsdk/pdfwindow/cpwl_list_impl.h",
     "fpdfsdk/pdfwindow/cpwl_scroll_bar.cpp",
     "fpdfsdk/pdfwindow/cpwl_scroll_bar.h",
     "fpdfsdk/pdfwindow/cpwl_special_button.cpp",
diff --git a/fpdfsdk/cpdfsdk_interform.cpp b/fpdfsdk/cpdfsdk_interform.cpp
index 9ae2aa44f4..c9736126d3 100644
--- a/fpdfsdk/cpdfsdk_interform.cpp
+++ b/fpdfsdk/cpdfsdk_interform.cpp
@@ -28,7 +28,6 @@
 #include "fpdfsdk/formfiller/cffl_formfiller.h"
 #include "fpdfsdk/fsdk_actionhandler.h"
 #include "fpdfsdk/fsdk_define.h"
-#include "fpdfsdk/fxedit/fxet_edit.h"
 #include "fpdfsdk/ipdfsdk_annothandler.h"
 #include "fpdfsdk/javascript/ijs_event_context.h"
 #include "fpdfsdk/javascript/ijs_runtime.h"
diff --git a/fpdfsdk/cpdfsdk_widget.cpp b/fpdfsdk/cpdfsdk_widget.cpp
index afc83edb07..4b85333a2a 100644
--- a/fpdfsdk/cpdfsdk_widget.cpp
+++ b/fpdfsdk/cpdfsdk_widget.cpp
@@ -29,7 +29,6 @@
 #include "fpdfsdk/formfiller/cba_fontmap.h"
 #include "fpdfsdk/fsdk_actionhandler.h"
 #include "fpdfsdk/fsdk_define.h"
-#include "fpdfsdk/fxedit/fxet_edit.h"
 #include "fpdfsdk/pdfwindow/cpwl_appstream.h"
 #include "fpdfsdk/pdfwindow/cpwl_edit.h"
 
diff --git a/fpdfsdk/pdfwindow/cpwl_appstream.cpp b/fpdfsdk/pdfwindow/cpwl_appstream.cpp
index f7ba4c465c..9ac08fa078 100644
--- a/fpdfsdk/pdfwindow/cpwl_appstream.cpp
+++ b/fpdfsdk/pdfwindow/cpwl_appstream.cpp
@@ -22,8 +22,8 @@
 #include "fpdfsdk/cpdfsdk_pageview.h"
 #include "fpdfsdk/cpdfsdk_widget.h"
 #include "fpdfsdk/formfiller/cba_fontmap.h"
-#include "fpdfsdk/fxedit/fxet_edit.h"
 #include "fpdfsdk/pdfwindow/cpwl_edit.h"
+#include "fpdfsdk/pdfwindow/cpwl_edit_impl.h"
 #include "fpdfsdk/pdfwindow/cpwl_icon.h"
 #include "fpdfsdk/pdfwindow/cpwl_wnd.h"
 
@@ -523,11 +523,11 @@ CFX_ByteString GetWordRenderString(const CFX_ByteString& strWords) {
   return CFX_ByteString();
 }
 
-CFX_ByteString GetEditAppStream(CFX_Edit* pEdit,
+CFX_ByteString GetEditAppStream(CPWL_EditImpl* pEdit,
                                 const CFX_PointF& ptOffset,
                                 bool bContinuous,
                                 uint16_t SubWord) {
-  CFX_Edit_Iterator* pIterator = pEdit->GetIterator();
+  CPWL_EditImpl_Iterator* pIterator = pEdit->GetIterator();
   pIterator->SetAt(0);
 
   std::ostringstream sEditStream;
@@ -686,7 +686,7 @@ CFX_ByteString GetPushButtonAppStream(const CFX_FloatRect& rcBBox,
                                       ButtonStyle nLayOut) {
   const float fAutoFontScale = 1.0f / 3.0f;
 
-  auto pEdit = pdfium::MakeUnique<CFX_Edit>();
+  auto pEdit = pdfium::MakeUnique<CPWL_EditImpl>();
   pEdit->SetFontMap(pFontMap);
   pEdit->SetAlignmentH(1, true);
   pEdit->SetAlignmentV(1, true);
@@ -1515,7 +1515,7 @@ void CPWL_AppStream::SetAsComboBox(const CFX_WideString* sValue) {
   rcButton.left = rcButton.right - 13;
   rcButton.Normalize();
 
-  auto pEdit = pdfium::MakeUnique<CFX_Edit>();
+  auto pEdit = pdfium::MakeUnique<CPWL_EditImpl>();
   pEdit->EnableRefresh(false);
 
   CBA_FontMap font_map(
@@ -1578,7 +1578,7 @@ void CPWL_AppStream::SetAsListBox() {
   CFX_FloatRect rcClient = widget_->GetClientRect();
   std::ostringstream sBody;
 
-  auto pEdit = pdfium::MakeUnique<CFX_Edit>();
+  auto pEdit = pdfium::MakeUnique<CPWL_EditImpl>();
   pEdit->EnableRefresh(false);
 
   CBA_FontMap font_map(
@@ -1658,7 +1658,7 @@ void CPWL_AppStream::SetAsTextField(const CFX_WideString* sValue) {
   std::ostringstream sBody;
   std::ostringstream sLines;
 
-  auto pEdit = pdfium::MakeUnique<CFX_Edit>();
+  auto pEdit = pdfium::MakeUnique<CPWL_EditImpl>();
   pEdit->EnableRefresh(false);
 
   CBA_FontMap font_map(
diff --git a/fpdfsdk/pdfwindow/cpwl_combo_box.cpp b/fpdfsdk/pdfwindow/cpwl_combo_box.cpp
index 484027eba2..8de2f1e733 100644
--- a/fpdfsdk/pdfwindow/cpwl_combo_box.cpp
+++ b/fpdfsdk/pdfwindow/cpwl_combo_box.cpp
@@ -11,10 +11,10 @@
 
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/cfx_renderdevice.h"
-#include "fpdfsdk/fxedit/fxet_list.h"
 #include "fpdfsdk/pdfwindow/cpwl_edit.h"
 #include "fpdfsdk/pdfwindow/cpwl_edit_ctrl.h"
 #include "fpdfsdk/pdfwindow/cpwl_list_box.h"
+#include "fpdfsdk/pdfwindow/cpwl_list_impl.h"
 #include "fpdfsdk/pdfwindow/cpwl_wnd.h"
 #include "public/fpdf_fwlevent.h"
 
diff --git a/fpdfsdk/pdfwindow/cpwl_edit.cpp b/fpdfsdk/pdfwindow/cpwl_edit.cpp
index 89361b5835..8588de73c6 100644
--- a/fpdfsdk/pdfwindow/cpwl_edit.cpp
+++ b/fpdfsdk/pdfwindow/cpwl_edit.cpp
@@ -20,9 +20,9 @@
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/cfx_renderdevice.h"
 #include "core/fxge/fx_font.h"
-#include "fpdfsdk/fxedit/fxet_edit.h"
 #include "fpdfsdk/pdfwindow/cpwl_caret.h"
 #include "fpdfsdk/pdfwindow/cpwl_edit_ctrl.h"
+#include "fpdfsdk/pdfwindow/cpwl_edit_impl.h"
 #include "fpdfsdk/pdfwindow/cpwl_font_map.h"
 #include "fpdfsdk/pdfwindow/cpwl_scroll_bar.h"
 #include "fpdfsdk/pdfwindow/cpwl_wnd.h"
@@ -281,9 +281,10 @@ void CPWL_Edit::DrawThisAppearance(CFX_RenderDevice* pDevice,
   }
 
   CFX_SystemHandler* pSysHandler = GetSystemHandler();
-  CFX_Edit::DrawEdit(pDevice, pUser2Device, m_pEdit.get(),
-                     GetTextColor().ToFXColor(GetTransparency()), rcClip,
-                     CFX_PointF(), pRange, pSysHandler, m_pFormFiller.Get());
+  CPWL_EditImpl::DrawEdit(pDevice, pUser2Device, m_pEdit.get(),
+                          GetTextColor().ToFXColor(GetTransparency()), rcClip,
+                          CFX_PointF(), pRange, pSysHandler,
+                          m_pFormFiller.Get());
 }
 
 bool CPWL_Edit::OnLButtonDown(const CFX_PointF& point, uint32_t nFlag) {
@@ -373,7 +374,7 @@ CPVT_WordRange CPWL_Edit::GetSelectWordRange() const {
 }
 
 CFX_PointF CPWL_Edit::GetWordRightBottomPoint(const CPVT_WordPlace& wpWord) {
-  CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
+  CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator();
   CPVT_WordPlace wpOld = pIterator->GetAt();
   pIterator->SetAt(wpWord);
 
@@ -660,7 +661,7 @@ CPVT_WordRange CPWL_Edit::GetSameWordsRange(const CPVT_WordPlace& place,
                                             bool bArabic) const {
   CPVT_WordRange range;
 
-  CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
+  CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator();
   CPVT_Word wordinfo;
   CPVT_WordPlace wpStart(place), wpEnd(place);
   pIterator->SetAt(place);
diff --git a/fpdfsdk/pdfwindow/cpwl_edit_ctrl.cpp b/fpdfsdk/pdfwindow/cpwl_edit_ctrl.cpp
index 7b90579a5f..c7e1f14499 100644
--- a/fpdfsdk/pdfwindow/cpwl_edit_ctrl.cpp
+++ b/fpdfsdk/pdfwindow/cpwl_edit_ctrl.cpp
@@ -9,15 +9,15 @@
 #include "core/fpdfdoc/cpvt_section.h"
 #include "core/fpdfdoc/cpvt_word.h"
 #include "core/fxge/fx_font.h"
-#include "fpdfsdk/fxedit/fxet_edit.h"
 #include "fpdfsdk/pdfwindow/cpwl_caret.h"
+#include "fpdfsdk/pdfwindow/cpwl_edit_impl.h"
 #include "fpdfsdk/pdfwindow/cpwl_font_map.h"
 #include "fpdfsdk/pdfwindow/cpwl_scroll_bar.h"
 #include "fpdfsdk/pdfwindow/cpwl_wnd.h"
 #include "public/fpdf_fwlevent.h"
 
 CPWL_EditCtrl::CPWL_EditCtrl()
-    : m_pEdit(new CFX_Edit),
+    : m_pEdit(new CPWL_EditImpl),
       m_pEditCaret(nullptr),
       m_bMouseDown(false),
       m_nCharSet(FX_CHARSET_Default) {}
@@ -302,7 +302,7 @@ void CPWL_EditCtrl::SetEditCaret(bool bVisible) {
 }
 
 void CPWL_EditCtrl::GetCaretInfo(CFX_PointF* ptHead, CFX_PointF* ptFoot) const {
-  CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
+  CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator();
   pIterator->SetAt(m_pEdit->GetCaret());
   CPVT_Word word;
   CPVT_Line line;
diff --git a/fpdfsdk/pdfwindow/cpwl_edit_ctrl.h b/fpdfsdk/pdfwindow/cpwl_edit_ctrl.h
index fca3bd8fe4..ef6989e637 100644
--- a/fpdfsdk/pdfwindow/cpwl_edit_ctrl.h
+++ b/fpdfsdk/pdfwindow/cpwl_edit_ctrl.h
@@ -12,7 +12,7 @@
 #include "core/fxcrt/fx_string.h"
 #include "fpdfsdk/pdfwindow/cpwl_wnd.h"
 
-class CFX_Edit;
+class CPWL_EditImpl;
 class CPWL_Caret;
 struct CPVT_WordPlace;
 
@@ -82,7 +82,7 @@ class CPWL_EditCtrl : public CPWL_Wnd {
 
   void SetEditCaret(bool bVisible);
 
-  std::unique_ptr<CFX_Edit> m_pEdit;
+  std::unique_ptr<CPWL_EditImpl> m_pEdit;
   CPWL_Caret* m_pEditCaret;
   bool m_bMouseDown;
 
diff --git a/fpdfsdk/fxedit/fxet_edit.cpp b/fpdfsdk/pdfwindow/cpwl_edit_impl.cpp
index 6c4595408f..0f5cf05b10 100644
--- a/fpdfsdk/fxedit/fxet_edit.cpp
+++ b/fpdfsdk/pdfwindow/cpwl_edit_impl.cpp
@@ -4,7 +4,7 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "fpdfsdk/fxedit/fxet_edit.h"
+#include "fpdfsdk/pdfwindow/cpwl_edit_impl.h"
 
 #include <algorithm>
 #include <memory>
@@ -72,21 +72,22 @@ void DrawTextString(CFX_RenderDevice* pDevice,
 
 }  // namespace
 
-CFX_Edit_Iterator::CFX_Edit_Iterator(CFX_Edit* pEdit,
-                                     CPDF_VariableText::Iterator* pVTIterator)
+CPWL_EditImpl_Iterator::CPWL_EditImpl_Iterator(
+    CPWL_EditImpl* pEdit,
+    CPDF_VariableText::Iterator* pVTIterator)
     : m_pEdit(pEdit), m_pVTIterator(pVTIterator) {}
 
-CFX_Edit_Iterator::~CFX_Edit_Iterator() {}
+CPWL_EditImpl_Iterator::~CPWL_EditImpl_Iterator() {}
 
-bool CFX_Edit_Iterator::NextWord() {
+bool CPWL_EditImpl_Iterator::NextWord() {
   return m_pVTIterator->NextWord();
 }
 
-bool CFX_Edit_Iterator::PrevWord() {
+bool CPWL_EditImpl_Iterator::PrevWord() {
   return m_pVTIterator->PrevWord();
 }
 
-bool CFX_Edit_Iterator::GetWord(CPVT_Word& word) const {
+bool CPWL_EditImpl_Iterator::GetWord(CPVT_Word& word) const {
   ASSERT(m_pEdit);
 
   if (m_pVTIterator->GetWord(word)) {
@@ -96,7 +97,7 @@ bool CFX_Edit_Iterator::GetWord(CPVT_Word& word) const {
   return false;
 }
 
-bool CFX_Edit_Iterator::GetLine(CPVT_Line& line) const {
+bool CPWL_EditImpl_Iterator::GetLine(CPVT_Line& line) const {
   ASSERT(m_pEdit);
 
   if (m_pVTIterator->GetLine(line)) {
@@ -106,30 +107,31 @@ bool CFX_Edit_Iterator::GetLine(CPVT_Line& line) const {
   return false;
 }
 
-void CFX_Edit_Iterator::SetAt(int32_t nWordIndex) {
+void CPWL_EditImpl_Iterator::SetAt(int32_t nWordIndex) {
   m_pVTIterator->SetAt(nWordIndex);
 }
 
-void CFX_Edit_Iterator::SetAt(const CPVT_WordPlace& place) {
+void CPWL_EditImpl_Iterator::SetAt(const CPVT_WordPlace& place) {
   m_pVTIterator->SetAt(place);
 }
 
-const CPVT_WordPlace& CFX_Edit_Iterator::GetAt() const {
+const CPVT_WordPlace& CPWL_EditImpl_Iterator::GetAt() const {
   return m_pVTIterator->GetAt();
 }
 
-CFX_Edit_Provider::CFX_Edit_Provider(IPVT_FontMap* pFontMap)
+CPWL_EditImpl_Provider::CPWL_EditImpl_Provider(IPVT_FontMap* pFontMap)
     : CPDF_VariableText::Provider(pFontMap), m_pFontMap(pFontMap) {
   ASSERT(m_pFontMap);
 }
 
-CFX_Edit_Provider::~CFX_Edit_Provider() {}
+CPWL_EditImpl_Provider::~CPWL_EditImpl_Provider() {}
 
-IPVT_FontMap* CFX_Edit_Provider::GetFontMap() const {
+IPVT_FontMap* CPWL_EditImpl_Provider::GetFontMap() const {
   return m_pFontMap;
 }
 
-int32_t CFX_Edit_Provider::GetCharWidth(int32_t nFontIndex, uint16_t word) {
+int32_t CPWL_EditImpl_Provider::GetCharWidth(int32_t nFontIndex,
+                                             uint16_t word) {
   if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex)) {
     uint32_t charcode = word;
 
@@ -145,84 +147,82 @@ int32_t CFX_Edit_Provider::GetCharWidth(int32_t nFontIndex, uint16_t word) {
   return 0;
 }
 
-int32_t CFX_Edit_Provider::GetTypeAscent(int32_t nFontIndex) {
+int32_t CPWL_EditImpl_Provider::GetTypeAscent(int32_t nFontIndex) {
   if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
     return pPDFFont->GetTypeAscent();
 
   return 0;
 }
 
-int32_t CFX_Edit_Provider::GetTypeDescent(int32_t nFontIndex) {
+int32_t CPWL_EditImpl_Provider::GetTypeDescent(int32_t nFontIndex) {
   if (CPDF_Font* pPDFFont = m_pFontMap->GetPDFFont(nFontIndex))
     return pPDFFont->GetTypeDescent();
 
   return 0;
 }
 
-int32_t CFX_Edit_Provider::GetWordFontIndex(uint16_t word,
-                                            int32_t charset,
-                                            int32_t nFontIndex) {
+int32_t CPWL_EditImpl_Provider::GetWordFontIndex(uint16_t word,
+                                                 int32_t charset,
+                                                 int32_t nFontIndex) {
   return m_pFontMap->GetWordFontIndex(word, charset, nFontIndex);
 }
 
-int32_t CFX_Edit_Provider::GetDefaultFontIndex() {
+int32_t CPWL_EditImpl_Provider::GetDefaultFontIndex() {
   return 0;
 }
 
-bool CFX_Edit_Provider::IsLatinWord(uint16_t word) {
+bool CPWL_EditImpl_Provider::IsLatinWord(uint16_t word) {
   return FX_EDIT_ISLATINWORD(word);
 }
 
-CFX_Edit_Refresh::CFX_Edit_Refresh() {}
+CPWL_EditImpl_Refresh::CPWL_EditImpl_Refresh() {}
 
-CFX_Edit_Refresh::~CFX_Edit_Refresh() {}
+CPWL_EditImpl_Refresh::~CPWL_EditImpl_Refresh() {}
 
-void CFX_Edit_Refresh::BeginRefresh() {
+void CPWL_EditImpl_Refresh::BeginRefresh() {
   m_RefreshRects.Clear();
   m_OldLineRects = std::move(m_NewLineRects);
 }
 
-void CFX_Edit_Refresh::Push(const CPVT_WordRange& linerange,
-                            const CFX_FloatRect& rect) {
+void CPWL_EditImpl_Refresh::Push(const CPVT_WordRange& linerange,
+                                 const CFX_FloatRect& rect) {
   m_NewLineRects.Add(linerange, rect);
 }
 
-void CFX_Edit_Refresh::NoAnalyse() {
+void CPWL_EditImpl_Refresh::NoAnalyse() {
   {
     for (int32_t i = 0, sz = m_OldLineRects.GetSize(); i < sz; i++)
-      if (CFX_Edit_LineRect* pOldRect = m_OldLineRects.GetAt(i))
+      if (CPWL_EditImpl_LineRect* pOldRect = m_OldLineRects.GetAt(i))
         m_RefreshRects.Add(pOldRect->m_rcLine);
   }
 
   {
     for (int32_t i = 0, sz = m_NewLineRects.GetSize(); i < sz; i++)
-      if (CFX_Edit_LineRect* pNewRect = m_NewLineRects.GetAt(i))
+      if (CPWL_EditImpl_LineRect* pNewRect = m_NewLineRects.GetAt(i))
         m_RefreshRects.Add(pNewRect->m_rcLine);
   }
 }
 
-const CFX_Edit_RectArray* CFX_Edit_Refresh::GetRefreshRects() const {
+const CPWL_EditImpl_RectArray* CPWL_EditImpl_Refresh::GetRefreshRects() const {
   return &m_RefreshRects;
 }
 
-void CFX_Edit_Refresh::EndRefresh() {
+void CPWL_EditImpl_Refresh::EndRefresh() {
   m_RefreshRects.Clear();
 }
 
-CFX_Edit_Undo::CFX_Edit_Undo(int32_t nBufsize)
-    : m_nCurUndoPos(0),
-      m_nBufSize(nBufsize),
-      m_bWorking(false) {}
+CPWL_EditImpl_Undo::CPWL_EditImpl_Undo(int32_t nBufsize)
+    : m_nCurUndoPos(0), m_nBufSize(nBufsize), m_bWorking(false) {}
 
-CFX_Edit_Undo::~CFX_Edit_Undo() {
+CPWL_EditImpl_Undo::~CPWL_EditImpl_Undo() {
   Reset();
 }
 
-bool CFX_Edit_Undo::CanUndo() const {
+bool CPWL_EditImpl_Undo::CanUndo() const {
   return m_nCurUndoPos > 0;
 }
 
-void CFX_Edit_Undo::Undo() {
+void CPWL_EditImpl_Undo::Undo() {
   m_bWorking = true;
   if (m_nCurUndoPos > 0) {
     m_UndoItemStack[m_nCurUndoPos - 1]->Undo();
@@ -231,11 +231,11 @@ void CFX_Edit_Undo::Undo() {
   m_bWorking = false;
 }
 
-bool CFX_Edit_Undo::CanRedo() const {
+bool CPWL_EditImpl_Undo::CanRedo() const {
   return m_nCurUndoPos < m_UndoItemStack.size();
 }
 
-void CFX_Edit_Undo::Redo() {
+void CPWL_EditImpl_Undo::Redo() {
   m_bWorking = true;
   if (m_nCurUndoPos < m_UndoItemStack.size()) {
     m_UndoItemStack[m_nCurUndoPos]->Redo();
@@ -244,7 +244,7 @@ void CFX_Edit_Undo::Redo() {
   m_bWorking = false;
 }
 
-void CFX_Edit_Undo::AddItem(std::unique_ptr<IFX_Edit_UndoItem> pItem) {
+void CPWL_EditImpl_Undo::AddItem(std::unique_ptr<IFX_Edit_UndoItem> pItem) {
   ASSERT(!m_bWorking);
   ASSERT(pItem);
   ASSERT(m_nBufSize > 1);
@@ -258,42 +258,43 @@ void CFX_Edit_Undo::AddItem(std::unique_ptr<IFX_Edit_UndoItem> pItem) {
   m_nCurUndoPos = m_UndoItemStack.size();
 }
 
-void CFX_Edit_Undo::RemoveHeads() {
+void CPWL_EditImpl_Undo::RemoveHeads() {
   ASSERT(m_UndoItemStack.size() > 1);
   m_UndoItemStack.pop_front();
 }
 
-void CFX_Edit_Undo::RemoveTails() {
+void CPWL_EditImpl_Undo::RemoveTails() {
   while (m_UndoItemStack.size() > m_nCurUndoPos)
     m_UndoItemStack.pop_back();
 }
 
-void CFX_Edit_Undo::Reset() {
+void CPWL_EditImpl_Undo::Reset() {
   m_UndoItemStack.clear();
   m_nCurUndoPos = 0;
 }
 
-CFX_Edit_UndoItem::CFX_Edit_UndoItem() : m_bFirst(true), m_bLast(true) {}
+CPWL_EditImpl_UndoItem::CPWL_EditImpl_UndoItem()
+    : m_bFirst(true), m_bLast(true) {}
 
-CFX_Edit_UndoItem::~CFX_Edit_UndoItem() {}
+CPWL_EditImpl_UndoItem::~CPWL_EditImpl_UndoItem() {}
 
-CFX_WideString CFX_Edit_UndoItem::GetUndoTitle() const {
+CFX_WideString CPWL_EditImpl_UndoItem::GetUndoTitle() const {
   return CFX_WideString();
 }
 
-void CFX_Edit_UndoItem::SetFirst(bool bFirst) {
+void CPWL_EditImpl_UndoItem::SetFirst(bool bFirst) {
   m_bFirst = bFirst;
 }
 
-void CFX_Edit_UndoItem::SetLast(bool bLast) {
+void CPWL_EditImpl_UndoItem::SetLast(bool bLast) {
   m_bLast = bLast;
 }
 
-bool CFX_Edit_UndoItem::IsLast() {
+bool CPWL_EditImpl_UndoItem::IsLast() {
   return m_bLast;
 }
 
-CFXEU_InsertWord::CFXEU_InsertWord(CFX_Edit* pEdit,
+CFXEU_InsertWord::CFXEU_InsertWord(CPWL_EditImpl* pEdit,
                                    const CPVT_WordPlace& wpOldPlace,
                                    const CPVT_WordPlace& wpNewPlace,
                                    uint16_t word,
@@ -327,7 +328,7 @@ void CFXEU_InsertWord::Undo() {
   }
 }
 
-CFXEU_InsertReturn::CFXEU_InsertReturn(CFX_Edit* pEdit,
+CFXEU_InsertReturn::CFXEU_InsertReturn(CPWL_EditImpl* pEdit,
                                        const CPVT_WordPlace& wpOldPlace,
                                        const CPVT_WordPlace& wpNewPlace,
                                        const CPVT_SecProps* pSecProps,
@@ -361,7 +362,7 @@ void CFXEU_InsertReturn::Undo() {
   }
 }
 
-CFXEU_Backspace::CFXEU_Backspace(CFX_Edit* pEdit,
+CFXEU_Backspace::CFXEU_Backspace(CPWL_EditImpl* pEdit,
                                  const CPVT_WordPlace& wpOldPlace,
                                  const CPVT_WordPlace& wpNewPlace,
                                  uint16_t word,
@@ -399,7 +400,7 @@ void CFXEU_Backspace::Undo() {
     m_pEdit->InsertWord(m_Word, m_nCharset, &m_WordProps, false, true);
 }
 
-CFXEU_Delete::CFXEU_Delete(CFX_Edit* pEdit,
+CFXEU_Delete::CFXEU_Delete(CPWL_EditImpl* pEdit,
                            const CPVT_WordPlace& wpOldPlace,
                            const CPVT_WordPlace& wpNewPlace,
                            uint16_t word,
@@ -438,7 +439,7 @@ void CFXEU_Delete::Undo() {
   }
 }
 
-CFXEU_Clear::CFXEU_Clear(CFX_Edit* pEdit,
+CFXEU_Clear::CFXEU_Clear(CPWL_EditImpl* pEdit,
                          const CPVT_WordRange& wrSel,
                          const CFX_WideString& swText)
     : m_pEdit(pEdit), m_wrSel(wrSel), m_swText(swText) {}
@@ -462,7 +463,7 @@ void CFXEU_Clear::Undo() {
   }
 }
 
-CFXEU_InsertText::CFXEU_InsertText(CFX_Edit* pEdit,
+CFXEU_InsertText::CFXEU_InsertText(CPWL_EditImpl* pEdit,
                                    const CPVT_WordPlace& wpOldPlace,
                                    const CPVT_WordPlace& wpNewPlace,
                                    const CFX_WideString& swText,
@@ -492,15 +493,15 @@ void CFXEU_InsertText::Undo() {
 }
 
 // static
-void CFX_Edit::DrawEdit(CFX_RenderDevice* pDevice,
-                        CFX_Matrix* pUser2Device,
-                        CFX_Edit* pEdit,
-                        FX_COLORREF crTextFill,
-                        const CFX_FloatRect& rcClip,
-                        const CFX_PointF& ptOffset,
-                        const CPVT_WordRange* pRange,
-                        CFX_SystemHandler* pSystemHandler,
-                        CFFL_FormFiller* pFFLData) {
+void CPWL_EditImpl::DrawEdit(CFX_RenderDevice* pDevice,
+                             CFX_Matrix* pUser2Device,
+                             CPWL_EditImpl* pEdit,
+                             FX_COLORREF crTextFill,
+                             const CFX_FloatRect& rcClip,
+                             const CFX_PointF& ptOffset,
+                             const CPVT_WordRange* pRange,
+                             CFX_SystemHandler* pSystemHandler,
+                             CFFL_FormFiller* pFFLData) {
   const bool bContinuous =
       pEdit->GetCharArray() == 0 && pEdit->GetCharSpace() <= 0.0f;
   uint16_t SubWord = pEdit->GetPasswordChar();
@@ -525,7 +526,7 @@ void CFX_Edit::DrawEdit(CFX_RenderDevice* pDevice,
     pDevice->SetClip_Rect(rcTemp.ToFxRect());
   }
 
-  CFX_Edit_Iterator* pIterator = pEdit->GetIterator();
+  CPWL_EditImpl_Iterator* pIterator = pEdit->GetIterator();
   if (IPVT_FontMap* pFontMap = pEdit->GetFontMap()) {
     if (pRange)
       pIterator->SetAt(pRange->BeginPos);
@@ -609,7 +610,7 @@ void CFX_Edit::DrawEdit(CFX_RenderDevice* pDevice,
   }
 }
 
-CFX_Edit::CFX_Edit()
+CPWL_EditImpl::CPWL_EditImpl()
     : m_pVT(new CPDF_VariableText),
       m_pNotify(nullptr),
       m_pOprNotify(nullptr),
@@ -626,114 +627,114 @@ CFX_Edit::CFX_Edit()
       m_bEnableUndo(true),
       m_bOprNotify(false) {}
 
-CFX_Edit::~CFX_Edit() {}
+CPWL_EditImpl::~CPWL_EditImpl() {}
 
-void CFX_Edit::Initialize() {
+void CPWL_EditImpl::Initialize() {
   m_pVT->Initialize();
   SetCaret(m_pVT->GetBeginWordPlace());
   SetCaretOrigin();
 }
 
-void CFX_Edit::SetFontMap(IPVT_FontMap* pFontMap) {
-  m_pVTProvider = pdfium::MakeUnique<CFX_Edit_Provider>(pFontMap);
+void CPWL_EditImpl::SetFontMap(IPVT_FontMap* pFontMap) {
+  m_pVTProvider = pdfium::MakeUnique<CPWL_EditImpl_Provider>(pFontMap);
   m_pVT->SetProvider(m_pVTProvider.get());
 }
 
-void CFX_Edit::SetNotify(CPWL_EditCtrl* pNotify) {
+void CPWL_EditImpl::SetNotify(CPWL_EditCtrl* pNotify) {
   m_pNotify = pNotify;
 }
 
-void CFX_Edit::SetOprNotify(CPWL_Edit* pOprNotify) {
+void CPWL_EditImpl::SetOprNotify(CPWL_Edit* pOprNotify) {
   m_pOprNotify = pOprNotify;
 }
 
-CFX_Edit_Iterator* CFX_Edit::GetIterator() {
+CPWL_EditImpl_Iterator* CPWL_EditImpl::GetIterator() {
   if (!m_pIterator) {
     m_pIterator =
-        pdfium::MakeUnique<CFX_Edit_Iterator>(this, m_pVT->GetIterator());
+        pdfium::MakeUnique<CPWL_EditImpl_Iterator>(this, m_pVT->GetIterator());
   }
   return m_pIterator.get();
 }
 
-IPVT_FontMap* CFX_Edit::GetFontMap() {
+IPVT_FontMap* CPWL_EditImpl::GetFontMap() {
   return m_pVTProvider ? m_pVTProvider->GetFontMap() : nullptr;
 }
 
-void CFX_Edit::SetPlateRect(const CFX_FloatRect& rect) {
+void CPWL_EditImpl::SetPlateRect(const CFX_FloatRect& rect) {
   m_pVT->SetPlateRect(rect);
   m_ptScrollPos = CFX_PointF(rect.left, rect.top);
   Paint();
 }
 
-void CFX_Edit::SetAlignmentH(int32_t nFormat, bool bPaint) {
+void CPWL_EditImpl::SetAlignmentH(int32_t nFormat, bool bPaint) {
   m_pVT->SetAlignment(nFormat);
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetAlignmentV(int32_t nFormat, bool bPaint) {
+void CPWL_EditImpl::SetAlignmentV(int32_t nFormat, bool bPaint) {
   m_nAlignment = nFormat;
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetPasswordChar(uint16_t wSubWord, bool bPaint) {
+void CPWL_EditImpl::SetPasswordChar(uint16_t wSubWord, bool bPaint) {
   m_pVT->SetPasswordChar(wSubWord);
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetLimitChar(int32_t nLimitChar) {
+void CPWL_EditImpl::SetLimitChar(int32_t nLimitChar) {
   m_pVT->SetLimitChar(nLimitChar);
   Paint();
 }
 
-void CFX_Edit::SetCharArray(int32_t nCharArray) {
+void CPWL_EditImpl::SetCharArray(int32_t nCharArray) {
   m_pVT->SetCharArray(nCharArray);
   Paint();
 }
 
-void CFX_Edit::SetCharSpace(float fCharSpace) {
+void CPWL_EditImpl::SetCharSpace(float fCharSpace) {
   m_pVT->SetCharSpace(fCharSpace);
   Paint();
 }
 
-void CFX_Edit::SetMultiLine(bool bMultiLine, bool bPaint) {
+void CPWL_EditImpl::SetMultiLine(bool bMultiLine, bool bPaint) {
   m_pVT->SetMultiLine(bMultiLine);
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetAutoReturn(bool bAuto, bool bPaint) {
+void CPWL_EditImpl::SetAutoReturn(bool bAuto, bool bPaint) {
   m_pVT->SetAutoReturn(bAuto);
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetAutoFontSize(bool bAuto, bool bPaint) {
+void CPWL_EditImpl::SetAutoFontSize(bool bAuto, bool bPaint) {
   m_pVT->SetAutoFontSize(bAuto);
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetFontSize(float fFontSize) {
+void CPWL_EditImpl::SetFontSize(float fFontSize) {
   m_pVT->SetFontSize(fFontSize);
   Paint();
 }
 
-void CFX_Edit::SetAutoScroll(bool bAuto, bool bPaint) {
+void CPWL_EditImpl::SetAutoScroll(bool bAuto, bool bPaint) {
   m_bEnableScroll = bAuto;
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetTextOverflow(bool bAllowed, bool bPaint) {
+void CPWL_EditImpl::SetTextOverflow(bool bAllowed, bool bPaint) {
   m_bEnableOverflow = bAllowed;
   if (bPaint)
     Paint();
 }
 
-void CFX_Edit::SetSelection(int32_t nStartChar, int32_t nEndChar) {
+void CPWL_EditImpl::SetSelection(int32_t nStartChar, int32_t nEndChar) {
   if (m_pVT->IsValid()) {
     if (nStartChar == 0 && nEndChar < 0) {
       SelectAll();
@@ -751,8 +752,8 @@ void CFX_Edit::SetSelection(int32_t nStartChar, int32_t nEndChar) {
   }
 }
 
-void CFX_Edit::SetSelection(const CPVT_WordPlace& begin,
-                            const CPVT_WordPlace& end) {
+void CPWL_EditImpl::SetSelection(const CPVT_WordPlace& begin,
+                                 const CPVT_WordPlace& end) {
   if (!m_pVT->IsValid())
     return;
 
@@ -765,7 +766,7 @@ void CFX_Edit::SetSelection(const CPVT_WordPlace& begin,
   SetCaretInfo();
 }
 
-void CFX_Edit::GetSelection(int32_t& nStartChar, int32_t& nEndChar) const {
+void CPWL_EditImpl::GetSelection(int32_t& nStartChar, int32_t& nEndChar) const {
   nStartChar = -1;
   nEndChar = -1;
   if (!m_pVT->IsValid())
@@ -785,18 +786,18 @@ void CFX_Edit::GetSelection(int32_t& nStartChar, int32_t& nEndChar) const {
   nEndChar = m_pVT->WordPlaceToWordIndex(m_SelState.BeginPos);
 }
 
-int32_t CFX_Edit::GetCaret() const {
+int32_t CPWL_EditImpl::GetCaret() const {
   if (m_pVT->IsValid())
     return m_pVT->WordPlaceToWordIndex(m_wpCaret);
 
   return -1;
 }
 
-CPVT_WordPlace CFX_Edit::GetCaretWordPlace() const {
+CPVT_WordPlace CPWL_EditImpl::GetCaretWordPlace() const {
   return m_wpCaret;
 }
 
-CFX_WideString CFX_Edit::GetText() const {
+CFX_WideString CPWL_EditImpl::GetText() const {
   CFX_WideString swRet;
   if (!m_pVT->IsValid())
     return swRet;
@@ -817,7 +818,7 @@ CFX_WideString CFX_Edit::GetText() const {
   return swRet;
 }
 
-CFX_WideString CFX_Edit::GetRangeText(const CPVT_WordRange& range) const {
+CFX_WideString CPWL_EditImpl::GetRangeText(const CPVT_WordRange& range) const {
   CFX_WideString swRet;
   if (!m_pVT->IsValid())
     return swRet;
@@ -843,11 +844,11 @@ CFX_WideString CFX_Edit::GetRangeText(const CPVT_WordRange& range) const {
   return swRet;
 }
 
-CFX_WideString CFX_Edit::GetSelectedText() const {
+CFX_WideString CPWL_EditImpl::GetSelectedText() const {
   return GetRangeText(m_SelState.ConvertToWordRange());
 }
 
-int32_t CFX_Edit::GetTotalLines() const {
+int32_t CPWL_EditImpl::GetTotalLines() const {
   int32_t nLines = 1;
 
   CPDF_VariableText::Iterator* pIterator = m_pVT->GetIterator();
@@ -858,72 +859,72 @@ int32_t CFX_Edit::GetTotalLines() const {
   return nLines;
 }
 
-CPVT_WordRange CFX_Edit::GetSelectWordRange() const {
+CPVT_WordRange CPWL_EditImpl::GetSelectWordRange() const {
   return m_SelState.ConvertToWordRange();
 }
 
-void CFX_Edit::SetText(const CFX_WideString& sText) {
+void CPWL_EditImpl::SetText(const CFX_WideString& sText) {
   Empty();
   DoInsertText(CPVT_WordPlace(0, 0, -1), sText, FX_CHARSET_Default);
   Paint();
 }
 
-bool CFX_Edit::InsertWord(uint16_t word, int32_t charset) {
+bool CPWL_EditImpl::InsertWord(uint16_t word, int32_t charset) {
   return InsertWord(word, charset, nullptr, true, true);
 }
 
-bool CFX_Edit::InsertReturn() {
+bool CPWL_EditImpl::InsertReturn() {
   return InsertReturn(nullptr, nullptr, true, true);
 }
 
-bool CFX_Edit::Backspace() {
+bool CPWL_EditImpl::Backspace() {
   return Backspace(true, true);
 }
 
-bool CFX_Edit::Delete() {
+bool CPWL_EditImpl::Delete() {
   return Delete(true, true);
 }
 
-bool CFX_Edit::ClearSelection() {
+bool CPWL_EditImpl::ClearSelection() {
   return Clear(true, true);
 }
 
-bool CFX_Edit::InsertText(const CFX_WideString& sText, int32_t charset) {
+bool CPWL_EditImpl::InsertText(const CFX_WideString& sText, int32_t charset) {
   return InsertText(sText, charset, true, true);
 }
 
-float CFX_Edit::GetFontSize() const {
+float CPWL_EditImpl::GetFontSize() const {
   return m_pVT->GetFontSize();
 }
 
-uint16_t CFX_Edit::GetPasswordChar() const {
+uint16_t CPWL_EditImpl::GetPasswordChar() const {
   return m_pVT->GetPasswordChar();
 }
 
-int32_t CFX_Edit::GetCharArray() const {
+int32_t CPWL_EditImpl::GetCharArray() const {
   return m_pVT->GetCharArray();
 }
 
-CFX_FloatRect CFX_Edit::GetContentRect() const {
+CFX_FloatRect CPWL_EditImpl::GetContentRect() const {
   return VTToEdit(m_pVT->GetContentRect());
 }
 
-int32_t CFX_Edit::GetHorzScale() const {
+int32_t CPWL_EditImpl::GetHorzScale() const {
   return m_pVT->GetHorzScale();
 }
 
-float CFX_Edit::GetCharSpace() const {
+float CPWL_EditImpl::GetCharSpace() const {
   return m_pVT->GetCharSpace();
 }
 
-CPVT_WordRange CFX_Edit::GetWholeWordRange() const {
+CPVT_WordRange CPWL_EditImpl::GetWholeWordRange() const {
   if (m_pVT->IsValid())
     return CPVT_WordRange(m_pVT->GetBeginWordPlace(), m_pVT->GetEndWordPlace());
 
   return CPVT_WordRange();
 }
 
-CPVT_WordRange CFX_Edit::GetVisibleWordRange() const {
+CPVT_WordRange CPWL_EditImpl::GetVisibleWordRange() const {
   if (m_bEnableOverflow)
     return GetWholeWordRange();
 
@@ -941,7 +942,7 @@ CPVT_WordRange CFX_Edit::GetVisibleWordRange() const {
   return CPVT_WordRange();
 }
 
-CPVT_WordPlace CFX_Edit::SearchWordPlace(const CFX_PointF& point) const {
+CPVT_WordPlace CPWL_EditImpl::SearchWordPlace(const CFX_PointF& point) const {
   if (m_pVT->IsValid()) {
     return m_pVT->SearchWordPlace(EditToVT(point));
   }
@@ -949,7 +950,7 @@ CPVT_WordPlace CFX_Edit::SearchWordPlace(const CFX_PointF& point) const {
   return CPVT_WordPlace();
 }
 
-void CFX_Edit::Paint() {
+void CPWL_EditImpl::Paint() {
   if (m_pVT->IsValid()) {
     RearrangeAll();
     ScrollToCaret();
@@ -959,7 +960,7 @@ void CFX_Edit::Paint() {
   }
 }
 
-void CFX_Edit::RearrangeAll() {
+void CPWL_EditImpl::RearrangeAll() {
   if (m_pVT->IsValid()) {
     m_pVT->UpdateWordPlace(m_wpCaret);
     m_pVT->RearrangeAll();
@@ -969,7 +970,7 @@ void CFX_Edit::RearrangeAll() {
   }
 }
 
-void CFX_Edit::RearrangePart(const CPVT_WordRange& range) {
+void CPWL_EditImpl::RearrangePart(const CPVT_WordRange& range) {
   if (m_pVT->IsValid()) {
     m_pVT->UpdateWordPlace(m_wpCaret);
     m_pVT->RearrangePart(range);
@@ -979,7 +980,7 @@ void CFX_Edit::RearrangePart(const CPVT_WordRange& range) {
   }
 }
 
-void CFX_Edit::SetContentChanged() {
+void CPWL_EditImpl::SetContentChanged() {
   if (m_pNotify) {
     CFX_FloatRect rcContent = m_pVT->GetContentRect();
     if (rcContent.Width() != m_rcOldContent.Width() ||
@@ -989,17 +990,17 @@ void CFX_Edit::SetContentChanged() {
   }
 }
 
-void CFX_Edit::SelectAll() {
+void CPWL_EditImpl::SelectAll() {
   if (!m_pVT->IsValid())
     return;
-  m_SelState = CFX_Edit_Select(GetWholeWordRange());
+  m_SelState = CPWL_EditImpl_Select(GetWholeWordRange());
   SetCaret(m_SelState.EndPos);
   ScrollToCaret();
   Refresh();
   SetCaretInfo();
 }
 
-void CFX_Edit::SelectNone() {
+void CPWL_EditImpl::SelectNone() {
   if (!m_pVT->IsValid() || m_SelState.IsEmpty())
     return;
 
@@ -1007,11 +1008,11 @@ void CFX_Edit::SelectNone() {
   Refresh();
 }
 
-bool CFX_Edit::IsSelected() const {
+bool CPWL_EditImpl::IsSelected() const {
   return !m_SelState.IsEmpty();
 }
 
-CFX_PointF CFX_Edit::VTToEdit(const CFX_PointF& point) const {
+CFX_PointF CPWL_EditImpl::VTToEdit(const CFX_PointF& point) const {
   CFX_FloatRect rcContent = m_pVT->GetContentRect();
   CFX_FloatRect rcPlate = m_pVT->GetPlateRect();
 
@@ -1033,7 +1034,7 @@ CFX_PointF CFX_Edit::VTToEdit(const CFX_PointF& point) const {
                     point.y - (m_ptScrollPos.y + fPadding - rcPlate.top));
 }
 
-CFX_PointF CFX_Edit::EditToVT(const CFX_PointF& point) const {
+CFX_PointF CPWL_EditImpl::EditToVT(const CFX_PointF& point) const {
   CFX_FloatRect rcContent = m_pVT->GetContentRect();
   CFX_FloatRect rcPlate = m_pVT->GetPlateRect();
 
@@ -1055,7 +1056,7 @@ CFX_PointF CFX_Edit::EditToVT(const CFX_PointF& point) const {
                     point.y + (m_ptScrollPos.y + fPadding - rcPlate.top));
 }
 
-CFX_FloatRect CFX_Edit::VTToEdit(const CFX_FloatRect& rect) const {
+CFX_FloatRect CPWL_EditImpl::VTToEdit(const CFX_FloatRect& rect) const {
   CFX_PointF ptLeftBottom = VTToEdit(CFX_PointF(rect.left, rect.bottom));
   CFX_PointF ptRightTop = VTToEdit(CFX_PointF(rect.right, rect.top));
 
@@ -1063,7 +1064,7 @@ CFX_FloatRect CFX_Edit::VTToEdit(const CFX_FloatRect& rect) const {
                        ptRightTop.y);
 }
 
-void CFX_Edit::SetScrollInfo() {
+void CPWL_EditImpl::SetScrollInfo() {
   if (!m_pNotify)
     return;
 
@@ -1084,7 +1085,7 @@ void CFX_Edit::SetScrollInfo() {
   m_pNotify->SetScrollInfo(Info);
 }
 
-void CFX_Edit::SetScrollPosX(float fx) {
+void CPWL_EditImpl::SetScrollPosX(float fx) {
   if (!m_bEnableScroll)
     return;
 
@@ -1096,7 +1097,7 @@ void CFX_Edit::SetScrollPosX(float fx) {
   }
 }
 
-void CFX_Edit::SetScrollPosY(float fy) {
+void CPWL_EditImpl::SetScrollPosY(float fy) {
   if (!m_bEnableScroll)
     return;
 
@@ -1116,18 +1117,18 @@ void CFX_Edit::SetScrollPosY(float fy) {
   }
 }
 
-void CFX_Edit::SetScrollPos(const CFX_PointF& point) {
+void CPWL_EditImpl::SetScrollPos(const CFX_PointF& point) {
   SetScrollPosX(point.x);
   SetScrollPosY(point.y);
   SetScrollLimit();
   SetCaretInfo();
 }
 
-CFX_PointF CFX_Edit::GetScrollPos() const {
+CFX_PointF CPWL_EditImpl::GetScrollPos() const {
   return m_ptScrollPos;
 }
 
-void CFX_Edit::SetScrollLimit() {
+void CPWL_EditImpl::SetScrollLimit() {
   if (m_pVT->IsValid()) {
     CFX_FloatRect rcContent = m_pVT->GetContentRect();
     CFX_FloatRect rcPlate = m_pVT->GetPlateRect();
@@ -1156,7 +1157,7 @@ void CFX_Edit::SetScrollLimit() {
   }
 }
 
-void CFX_Edit::ScrollToCaret() {
+void CPWL_EditImpl::ScrollToCaret() {
   SetScrollLimit();
 
   if (!m_pVT->IsValid())
@@ -1207,7 +1208,7 @@ void CFX_Edit::ScrollToCaret() {
   }
 }
 
-void CFX_Edit::Refresh() {
+void CPWL_EditImpl::Refresh() {
   if (m_bEnableRefresh && m_pVT->IsValid()) {
     m_Refresh.BeginRefresh();
     RefreshPushLineRects(GetVisibleWordRange());
@@ -1219,7 +1220,8 @@ void CFX_Edit::Refresh() {
       if (!m_bNotifyFlag) {
         CFX_AutoRestorer<bool> restorer(&m_bNotifyFlag);
         m_bNotifyFlag = true;
-        if (const CFX_Edit_RectArray* pRects = m_Refresh.GetRefreshRects()) {
+        if (const CPWL_EditImpl_RectArray* pRects =
+                m_Refresh.GetRefreshRects()) {
           for (int32_t i = 0, sz = pRects->GetSize(); i < sz; i++)
             m_pNotify->InvalidateRect(pRects->GetAt(i));
         }
@@ -1230,7 +1232,7 @@ void CFX_Edit::Refresh() {
   }
 }
 
-void CFX_Edit::RefreshPushLineRects(const CPVT_WordRange& wr) {
+void CPWL_EditImpl::RefreshPushLineRects(const CPVT_WordRange& wr) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1258,7 +1260,7 @@ void CFX_Edit::RefreshPushLineRects(const CPVT_WordRange& wr) {
   } while (pIterator->NextLine());
 }
 
-void CFX_Edit::RefreshWordRange(const CPVT_WordRange& wr) {
+void CPWL_EditImpl::RefreshWordRange(const CPVT_WordRange& wr) {
   CPDF_VariableText::Iterator* pIterator = m_pVT->GetIterator();
   CPVT_WordRange wrTemp = wr;
 
@@ -1312,12 +1314,12 @@ void CFX_Edit::RefreshWordRange(const CPVT_WordRange& wr) {
   }
 }
 
-void CFX_Edit::SetCaret(const CPVT_WordPlace& place) {
+void CPWL_EditImpl::SetCaret(const CPVT_WordPlace& place) {
   m_wpOldCaret = m_wpCaret;
   m_wpCaret = place;
 }
 
-void CFX_Edit::SetCaretInfo() {
+void CPWL_EditImpl::SetCaretInfo() {
   if (m_pNotify) {
     if (!m_bNotifyFlag) {
       CPDF_VariableText::Iterator* pIterator = m_pVT->GetIterator();
@@ -1347,7 +1349,9 @@ void CFX_Edit::SetCaretInfo() {
   }
 }
 
-void CFX_Edit::OnMouseDown(const CFX_PointF& point, bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnMouseDown(const CFX_PointF& point,
+                                bool bShift,
+                                bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1359,7 +1363,9 @@ void CFX_Edit::OnMouseDown(const CFX_PointF& point, bool bShift, bool bCtrl) {
   SetCaretInfo();
 }
 
-void CFX_Edit::OnMouseMove(const CFX_PointF& point, bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnMouseMove(const CFX_PointF& point,
+                                bool bShift,
+                                bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1374,7 +1380,7 @@ void CFX_Edit::OnMouseMove(const CFX_PointF& point, bool bShift, bool bCtrl) {
   SetCaretInfo();
 }
 
-void CFX_Edit::OnVK_UP(bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnVK_UP(bool bShift, bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1397,7 +1403,7 @@ void CFX_Edit::OnVK_UP(bool bShift, bool bCtrl) {
   }
 }
 
-void CFX_Edit::OnVK_DOWN(bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnVK_DOWN(bool bShift, bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1420,7 +1426,7 @@ void CFX_Edit::OnVK_DOWN(bool bShift, bool bCtrl) {
   }
 }
 
-void CFX_Edit::OnVK_LEFT(bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnVK_LEFT(bool bShift, bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1463,7 +1469,7 @@ void CFX_Edit::OnVK_LEFT(bool bShift, bool bCtrl) {
   }
 }
 
-void CFX_Edit::OnVK_RIGHT(bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnVK_RIGHT(bool bShift, bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1506,7 +1512,7 @@ void CFX_Edit::OnVK_RIGHT(bool bShift, bool bCtrl) {
   }
 }
 
-void CFX_Edit::OnVK_HOME(bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnVK_HOME(bool bShift, bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1543,7 +1549,7 @@ void CFX_Edit::OnVK_HOME(bool bShift, bool bCtrl) {
   }
 }
 
-void CFX_Edit::OnVK_END(bool bShift, bool bCtrl) {
+void CPWL_EditImpl::OnVK_END(bool bShift, bool bCtrl) {
   if (!m_pVT->IsValid())
     return;
 
@@ -1580,11 +1586,11 @@ void CFX_Edit::OnVK_END(bool bShift, bool bCtrl) {
   }
 }
 
-bool CFX_Edit::InsertWord(uint16_t word,
-                          int32_t charset,
-                          const CPVT_WordProps* pWordProps,
-                          bool bAddUndo,
-                          bool bPaint) {
+bool CPWL_EditImpl::InsertWord(uint16_t word,
+                               int32_t charset,
+                               const CPVT_WordProps* pWordProps,
+                               bool bAddUndo,
+                               bool bPaint) {
   if (IsTextOverflow() || !m_pVT->IsValid())
     return false;
 
@@ -1608,10 +1614,10 @@ bool CFX_Edit::InsertWord(uint16_t word,
   return true;
 }
 
-bool CFX_Edit::InsertReturn(const CPVT_SecProps* pSecProps,
-                            const CPVT_WordProps* pWordProps,
-                            bool bAddUndo,
-                            bool bPaint) {
+bool CPWL_EditImpl::InsertReturn(const CPVT_SecProps* pSecProps,
+                                 const CPVT_WordProps* pWordProps,
+                                 bool bAddUndo,
+                                 bool bPaint) {
   if (IsTextOverflow() || !m_pVT->IsValid())
     return false;
 
@@ -1638,7 +1644,7 @@ bool CFX_Edit::InsertReturn(const CPVT_SecProps* pSecProps,
   return true;
 }
 
-bool CFX_Edit::Backspace(bool bAddUndo, bool bPaint) {
+bool CPWL_EditImpl::Backspace(bool bAddUndo, bool bPaint) {
   if (!m_pVT->IsValid() || m_wpCaret == m_pVT->GetBeginWordPlace())
     return false;
 
@@ -1680,7 +1686,7 @@ bool CFX_Edit::Backspace(bool bAddUndo, bool bPaint) {
   return true;
 }
 
-bool CFX_Edit::Delete(bool bAddUndo, bool bPaint) {
+bool CPWL_EditImpl::Delete(bool bAddUndo, bool bPaint) {
   if (!m_pVT->IsValid() || m_wpCaret == m_pVT->GetEndWordPlace())
     return false;
 
@@ -1720,7 +1726,7 @@ bool CFX_Edit::Delete(bool bAddUndo, bool bPaint) {
   return true;
 }
 
-bool CFX_Edit::Empty() {
+bool CPWL_EditImpl::Empty() {
   if (m_pVT->IsValid()) {
     m_pVT->DeleteWords(GetWholeWordRange());
     SetCaret(m_pVT->GetBeginWordPlace());
@@ -1731,7 +1737,7 @@ bool CFX_Edit::Empty() {
   return false;
 }
 
-bool CFX_Edit::Clear(bool bAddUndo, bool bPaint) {
+bool CPWL_EditImpl::Clear(bool bAddUndo, bool bPaint) {
   if (!m_pVT->IsValid() || m_SelState.IsEmpty())
     return false;
 
@@ -1757,10 +1763,10 @@ bool CFX_Edit::Clear(bool bAddUndo, bool bPaint) {
   return true;
 }
 
-bool CFX_Edit::InsertText(const CFX_WideString& sText,
-                          int32_t charset,
-                          bool bAddUndo,
-                          bool bPaint) {
+bool CPWL_EditImpl::InsertText(const CFX_WideString& sText,
+                               int32_t charset,
+                               bool bAddUndo,
+                               bool bPaint) {
   if (IsTextOverflow())
     return false;
 
@@ -1783,8 +1789,8 @@ bool CFX_Edit::InsertText(const CFX_WideString& sText,
   return true;
 }
 
-void CFX_Edit::PaintInsertText(const CPVT_WordPlace& wpOld,
-                               const CPVT_WordPlace& wpNew) {
+void CPWL_EditImpl::PaintInsertText(const CPVT_WordPlace& wpOld,
+                                    const CPVT_WordPlace& wpNew) {
   if (m_pVT->IsValid()) {
     RearrangePart(CPVT_WordRange(wpOld, wpNew));
     ScrollToCaret();
@@ -1794,7 +1800,7 @@ void CFX_Edit::PaintInsertText(const CPVT_WordPlace& wpOld,
   }
 }
 
-bool CFX_Edit::Redo() {
+bool CPWL_EditImpl::Redo() {
   if (m_bEnableUndo) {
     if (m_Undo.CanRedo()) {
       m_Undo.Redo();
@@ -1805,7 +1811,7 @@ bool CFX_Edit::Redo() {
   return false;
 }
 
-bool CFX_Edit::Undo() {
+bool CPWL_EditImpl::Undo() {
   if (m_bEnableUndo) {
     if (m_Undo.CanUndo()) {
       m_Undo.Undo();
@@ -1816,7 +1822,7 @@ bool CFX_Edit::Undo() {
   return false;
 }
 
-void CFX_Edit::SetCaretOrigin() {
+void CPWL_EditImpl::SetCaretOrigin() {
   if (!m_pVT->IsValid())
     return;
 
@@ -1833,14 +1839,14 @@ void CFX_Edit::SetCaretOrigin() {
   }
 }
 
-CPVT_WordPlace CFX_Edit::WordIndexToWordPlace(int32_t index) const {
+CPVT_WordPlace CPWL_EditImpl::WordIndexToWordPlace(int32_t index) const {
   if (m_pVT->IsValid())
     return m_pVT->WordIndexToWordPlace(index);
 
   return CPVT_WordPlace();
 }
 
-bool CFX_Edit::IsTextFull() const {
+bool CPWL_EditImpl::IsTextFull() const {
   int32_t nTotalWords = m_pVT->GetTotalWords();
   int32_t nLimitChar = m_pVT->GetLimitChar();
   int32_t nCharArray = m_pVT->GetCharArray();
@@ -1849,7 +1855,7 @@ bool CFX_Edit::IsTextFull() const {
          (nCharArray > 0 && nTotalWords >= nCharArray);
 }
 
-bool CFX_Edit::IsTextOverflow() const {
+bool CPWL_EditImpl::IsTextOverflow() const {
   if (!m_bEnableScroll && !m_bEnableOverflow) {
     CFX_FloatRect rcPlate = m_pVT->GetPlateRect();
     CFX_FloatRect rcContent = m_pVT->GetContentRect();
@@ -1866,7 +1872,7 @@ bool CFX_Edit::IsTextOverflow() const {
   return false;
 }
 
-bool CFX_Edit::CanUndo() const {
+bool CPWL_EditImpl::CanUndo() const {
   if (m_bEnableUndo) {
     return m_Undo.CanUndo();
   }
@@ -1874,7 +1880,7 @@ bool CFX_Edit::CanUndo() const {
   return false;
 }
 
-bool CFX_Edit::CanRedo() const {
+bool CPWL_EditImpl::CanRedo() const {
   if (m_bEnableUndo) {
     return m_Undo.CanRedo();
   }
@@ -1882,21 +1888,21 @@ bool CFX_Edit::CanRedo() const {
   return false;
 }
 
-void CFX_Edit::EnableRefresh(bool bRefresh) {
+void CPWL_EditImpl::EnableRefresh(bool bRefresh) {
   m_bEnableRefresh = bRefresh;
 }
 
-void CFX_Edit::EnableUndo(bool bUndo) {
+void CPWL_EditImpl::EnableUndo(bool bUndo) {
   m_bEnableUndo = bUndo;
 }
 
-void CFX_Edit::EnableOprNotify(bool bNotify) {
+void CPWL_EditImpl::EnableOprNotify(bool bNotify) {
   m_bOprNotify = bNotify;
 }
 
-CPVT_WordPlace CFX_Edit::DoInsertText(const CPVT_WordPlace& place,
-                                      const CFX_WideString& sText,
-                                      int32_t charset) {
+CPVT_WordPlace CPWL_EditImpl::DoInsertText(const CPVT_WordPlace& place,
+                                           const CFX_WideString& sText,
+                                           int32_t charset) {
   CPVT_WordPlace wp = place;
 
   if (m_pVT->IsValid()) {
@@ -1926,20 +1932,21 @@ CPVT_WordPlace CFX_Edit::DoInsertText(const CPVT_WordPlace& place,
   return wp;
 }
 
-int32_t CFX_Edit::GetCharSetFromUnicode(uint16_t word, int32_t nOldCharset) {
+int32_t CPWL_EditImpl::GetCharSetFromUnicode(uint16_t word,
+                                             int32_t nOldCharset) {
   if (IPVT_FontMap* pFontMap = GetFontMap())
     return pFontMap->CharSetFromUnicode(word, nOldCharset);
   return nOldCharset;
 }
 
-void CFX_Edit::AddEditUndoItem(
-    std::unique_ptr<CFX_Edit_UndoItem> pEditUndoItem) {
+void CPWL_EditImpl::AddEditUndoItem(
+    std::unique_ptr<CPWL_EditImpl_UndoItem> pEditUndoItem) {
   m_Undo.AddItem(std::move(pEditUndoItem));
 }
 
-CFX_ByteString CFX_Edit::GetPDFWordString(int32_t nFontIndex,
-                                          uint16_t Word,
-                                          uint16_t SubWord) {
+CFX_ByteString CPWL_EditImpl::GetPDFWordString(int32_t nFontIndex,
+                                               uint16_t Word,
+                                               uint16_t SubWord) {
   IPVT_FontMap* pFontMap = GetFontMap();
   CPDF_Font* pPDFFont = pFontMap->GetPDFFont(nFontIndex);
   if (!pPDFFont)
@@ -1961,68 +1968,71 @@ CFX_ByteString CFX_Edit::GetPDFWordString(int32_t nFontIndex,
   return sWord;
 }
 
-CFX_Edit_LineRectArray::CFX_Edit_LineRectArray() {}
+CPWL_EditImpl_LineRectArray::CPWL_EditImpl_LineRectArray() {}
 
-CFX_Edit_LineRectArray::~CFX_Edit_LineRectArray() {}
+CPWL_EditImpl_LineRectArray::~CPWL_EditImpl_LineRectArray() {}
 
-void CFX_Edit_LineRectArray::operator=(CFX_Edit_LineRectArray&& that) {
+void CPWL_EditImpl_LineRectArray::operator=(
+    CPWL_EditImpl_LineRectArray&& that) {
   m_LineRects = std::move(that.m_LineRects);
 }
 
-void CFX_Edit_LineRectArray::Add(const CPVT_WordRange& wrLine,
-                                 const CFX_FloatRect& rcLine) {
-  m_LineRects.push_back(pdfium::MakeUnique<CFX_Edit_LineRect>(wrLine, rcLine));
+void CPWL_EditImpl_LineRectArray::Add(const CPVT_WordRange& wrLine,
+                                      const CFX_FloatRect& rcLine) {
+  m_LineRects.push_back(
+      pdfium::MakeUnique<CPWL_EditImpl_LineRect>(wrLine, rcLine));
 }
 
-int32_t CFX_Edit_LineRectArray::GetSize() const {
+int32_t CPWL_EditImpl_LineRectArray::GetSize() const {
   return pdfium::CollectionSize<int32_t>(m_LineRects);
 }
 
-CFX_Edit_LineRect* CFX_Edit_LineRectArray::GetAt(int32_t nIndex) const {
+CPWL_EditImpl_LineRect* CPWL_EditImpl_LineRectArray::GetAt(
+    int32_t nIndex) const {
   if (nIndex < 0 || nIndex >= GetSize())
     return nullptr;
 
   return m_LineRects[nIndex].get();
 }
 
-CFX_Edit_Select::CFX_Edit_Select() {}
+CPWL_EditImpl_Select::CPWL_EditImpl_Select() {}
 
-CFX_Edit_Select::CFX_Edit_Select(const CPVT_WordRange& range) {
+CPWL_EditImpl_Select::CPWL_EditImpl_Select(const CPVT_WordRange& range) {
   Set(range.BeginPos, range.EndPos);
 }
 
-CPVT_WordRange CFX_Edit_Select::ConvertToWordRange() const {
+CPVT_WordRange CPWL_EditImpl_Select::ConvertToWordRange() const {
   return CPVT_WordRange(BeginPos, EndPos);
 }
 
-void CFX_Edit_Select::Reset() {
+void CPWL_EditImpl_Select::Reset() {
   BeginPos.Reset();
   EndPos.Reset();
 }
 
-void CFX_Edit_Select::Set(const CPVT_WordPlace& begin,
-                          const CPVT_WordPlace& end) {
+void CPWL_EditImpl_Select::Set(const CPVT_WordPlace& begin,
+                               const CPVT_WordPlace& end) {
   BeginPos = begin;
   EndPos = end;
 }
 
-void CFX_Edit_Select::SetEndPos(const CPVT_WordPlace& end) {
+void CPWL_EditImpl_Select::SetEndPos(const CPVT_WordPlace& end) {
   EndPos = end;
 }
 
-bool CFX_Edit_Select::IsEmpty() const {
+bool CPWL_EditImpl_Select::IsEmpty() const {
   return BeginPos == EndPos;
 }
 
-CFX_Edit_RectArray::CFX_Edit_RectArray() {}
+CPWL_EditImpl_RectArray::CPWL_EditImpl_RectArray() {}
 
-CFX_Edit_RectArray::~CFX_Edit_RectArray() {}
+CPWL_EditImpl_RectArray::~CPWL_EditImpl_RectArray() {}
 
-void CFX_Edit_RectArray::Clear() {
+void CPWL_EditImpl_RectArray::Clear() {
   m_Rects.clear();
 }
 
-void CFX_Edit_RectArray::Add(const CFX_FloatRect& rect) {
+void CPWL_EditImpl_RectArray::Add(const CFX_FloatRect& rect) {
   // check for overlapped area
   for (const auto& pRect : m_Rects) {
     if (pRect && pRect->Contains(rect))
@@ -2031,11 +2041,11 @@ void CFX_Edit_RectArray::Add(const CFX_FloatRect& rect) {
   m_Rects.push_back(pdfium::MakeUnique<CFX_FloatRect>(rect));
 }
 
-int32_t CFX_Edit_RectArray::GetSize() const {
+int32_t CPWL_EditImpl_RectArray::GetSize() const {
   return pdfium::CollectionSize<int32_t>(m_Rects);
 }
 
-CFX_FloatRect* CFX_Edit_RectArray::GetAt(int32_t nIndex) const {
+CFX_FloatRect* CPWL_EditImpl_RectArray::GetAt(int32_t nIndex) const {
   if (nIndex < 0 || nIndex >= GetSize())
     return nullptr;
 
diff --git a/fpdfsdk/fxedit/fxet_edit.h b/fpdfsdk/pdfwindow/cpwl_edit_impl.h
index 4aaee69f96..53ed8da0c2 100644
--- a/fpdfsdk/fxedit/fxet_edit.h
+++ b/fpdfsdk/pdfwindow/cpwl_edit_impl.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef FPDFSDK_FXEDIT_FXET_EDIT_H_
-#define FPDFSDK_FXEDIT_FXET_EDIT_H_
+#ifndef FPDFSDK_PDFWINDOW_CPWL_EDIT_IMPL_H_
+#define FPDFSDK_PDFWINDOW_CPWL_EDIT_IMPL_H_
 
 #include <deque>
 #include <memory>
@@ -20,42 +20,43 @@
    (u <= 0x007A && u >= 0x0061) || (u <= 0x02AF && u >= 0x00C0))
 
 class CFFL_FormFiller;
-class CFX_Edit;
-class CFX_Edit_Iterator;
-class CFX_Edit_Provider;
+class CPWL_EditImpl;
+class CPWL_EditImpl_Iterator;
+class CPWL_EditImpl_Provider;
 class CFX_RenderDevice;
 class CFX_SystemHandler;
 class CPWL_Edit;
 class CPWL_EditCtrl;
 class IFX_Edit_UndoItem;
 
-struct CFX_Edit_LineRect {
-  CFX_Edit_LineRect(const CPVT_WordRange& wrLine, const CFX_FloatRect& rcLine)
+struct CPWL_EditImpl_LineRect {
+  CPWL_EditImpl_LineRect(const CPVT_WordRange& wrLine,
+                         const CFX_FloatRect& rcLine)
       : m_wrLine(wrLine), m_rcLine(rcLine) {}
 
   CPVT_WordRange m_wrLine;
   CFX_FloatRect m_rcLine;
 };
 
-class CFX_Edit_LineRectArray {
+class CPWL_EditImpl_LineRectArray {
  public:
-  CFX_Edit_LineRectArray();
-  ~CFX_Edit_LineRectArray();
+  CPWL_EditImpl_LineRectArray();
+  ~CPWL_EditImpl_LineRectArray();
 
-  void operator=(CFX_Edit_LineRectArray&& rects);
+  void operator=(CPWL_EditImpl_LineRectArray&& rects);
   void Add(const CPVT_WordRange& wrLine, const CFX_FloatRect& rcLine);
 
   int32_t GetSize() const;
-  CFX_Edit_LineRect* GetAt(int32_t nIndex) const;
+  CPWL_EditImpl_LineRect* GetAt(int32_t nIndex) const;
 
  private:
-  std::vector<std::unique_ptr<CFX_Edit_LineRect>> m_LineRects;
+  std::vector<std::unique_ptr<CPWL_EditImpl_LineRect>> m_LineRects;
 };
 
-class CFX_Edit_RectArray {
+class CPWL_EditImpl_RectArray {
  public:
-  CFX_Edit_RectArray();
-  ~CFX_Edit_RectArray();
+  CPWL_EditImpl_RectArray();
+  ~CPWL_EditImpl_RectArray();
 
   void Clear();
   void Add(const CFX_FloatRect& rect);
@@ -67,27 +68,27 @@ class CFX_Edit_RectArray {
   std::vector<std::unique_ptr<CFX_FloatRect>> m_Rects;
 };
 
-class CFX_Edit_Refresh {
+class CPWL_EditImpl_Refresh {
  public:
-  CFX_Edit_Refresh();
-  ~CFX_Edit_Refresh();
+  CPWL_EditImpl_Refresh();
+  ~CPWL_EditImpl_Refresh();
 
   void BeginRefresh();
   void Push(const CPVT_WordRange& linerange, const CFX_FloatRect& rect);
   void NoAnalyse();
-  const CFX_Edit_RectArray* GetRefreshRects() const;
+  const CPWL_EditImpl_RectArray* GetRefreshRects() const;
   void EndRefresh();
 
  private:
-  CFX_Edit_LineRectArray m_NewLineRects;
-  CFX_Edit_LineRectArray m_OldLineRects;
-  CFX_Edit_RectArray m_RefreshRects;
+  CPWL_EditImpl_LineRectArray m_NewLineRects;
+  CPWL_EditImpl_LineRectArray m_OldLineRects;
+  CPWL_EditImpl_RectArray m_RefreshRects;
 };
 
-class CFX_Edit_Select {
+class CPWL_EditImpl_Select {
  public:
-  CFX_Edit_Select();
-  explicit CFX_Edit_Select(const CPVT_WordRange& range);
+  CPWL_EditImpl_Select();
+  explicit CPWL_EditImpl_Select(const CPVT_WordRange& range);
 
   void Reset();
   void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end);
@@ -100,10 +101,10 @@ class CFX_Edit_Select {
   CPVT_WordPlace EndPos;
 };
 
-class CFX_Edit_Undo {
+class CPWL_EditImpl_Undo {
  public:
-  explicit CFX_Edit_Undo(int32_t nBufsize);
-  ~CFX_Edit_Undo();
+  explicit CPWL_EditImpl_Undo(int32_t nBufsize);
+  ~CPWL_EditImpl_Undo();
 
   void AddItem(std::unique_ptr<IFX_Edit_UndoItem> pItem);
   void Undo();
@@ -131,10 +132,10 @@ class IFX_Edit_UndoItem {
   virtual CFX_WideString GetUndoTitle() const = 0;
 };
 
-class CFX_Edit_UndoItem : public IFX_Edit_UndoItem {
+class CPWL_EditImpl_UndoItem : public IFX_Edit_UndoItem {
  public:
-  CFX_Edit_UndoItem();
-  ~CFX_Edit_UndoItem() override;
+  CPWL_EditImpl_UndoItem();
+  ~CPWL_EditImpl_UndoItem() override;
 
   CFX_WideString GetUndoTitle() const override;
 
@@ -147,9 +148,9 @@ class CFX_Edit_UndoItem : public IFX_Edit_UndoItem {
   bool m_bLast;
 };
 
-class CFXEU_InsertWord : public CFX_Edit_UndoItem {
+class CFXEU_InsertWord : public CPWL_EditImpl_UndoItem {
  public:
-  CFXEU_InsertWord(CFX_Edit* pEdit,
+  CFXEU_InsertWord(CPWL_EditImpl* pEdit,
                    const CPVT_WordPlace& wpOldPlace,
                    const CPVT_WordPlace& wpNewPlace,
                    uint16_t word,
@@ -157,12 +158,12 @@ class CFXEU_InsertWord : public CFX_Edit_UndoItem {
                    const CPVT_WordProps* pWordProps);
   ~CFXEU_InsertWord() override;
 
-  // CFX_Edit_UndoItem
+  // CPWL_EditImpl_UndoItem
   void Redo() override;
   void Undo() override;
 
  private:
-  CFX_UnownedPtr<CFX_Edit> m_pEdit;
+  CFX_UnownedPtr<CPWL_EditImpl> m_pEdit;
 
   CPVT_WordPlace m_wpOld;
   CPVT_WordPlace m_wpNew;
@@ -171,21 +172,21 @@ class CFXEU_InsertWord : public CFX_Edit_UndoItem {
   CPVT_WordProps m_WordProps;
 };
 
-class CFXEU_InsertReturn : public CFX_Edit_UndoItem {
+class CFXEU_InsertReturn : public CPWL_EditImpl_UndoItem {
  public:
-  CFXEU_InsertReturn(CFX_Edit* pEdit,
+  CFXEU_InsertReturn(CPWL_EditImpl* pEdit,
                      const CPVT_WordPlace& wpOldPlace,
                      const CPVT_WordPlace& wpNewPlace,
                      const CPVT_SecProps* pSecProps,
                      const CPVT_WordProps* pWordProps);
   ~CFXEU_InsertReturn() override;
 
-  // CFX_Edit_UndoItem
+  // CPWL_EditImpl_UndoItem
   void Redo() override;
   void Undo() override;
 
  private:
-  CFX_UnownedPtr<CFX_Edit> m_pEdit;
+  CFX_UnownedPtr<CPWL_EditImpl> m_pEdit;
 
   CPVT_WordPlace m_wpOld;
   CPVT_WordPlace m_wpNew;
@@ -193,9 +194,9 @@ class CFXEU_InsertReturn : public CFX_Edit_UndoItem {
   CPVT_WordProps m_WordProps;
 };
 
-class CFXEU_Backspace : public CFX_Edit_UndoItem {
+class CFXEU_Backspace : public CPWL_EditImpl_UndoItem {
  public:
-  CFXEU_Backspace(CFX_Edit* pEdit,
+  CFXEU_Backspace(CPWL_EditImpl* pEdit,
                   const CPVT_WordPlace& wpOldPlace,
                   const CPVT_WordPlace& wpNewPlace,
                   uint16_t word,
@@ -204,12 +205,12 @@ class CFXEU_Backspace : public CFX_Edit_UndoItem {
                   const CPVT_WordProps& WordProps);
   ~CFXEU_Backspace() override;
 
-  // CFX_Edit_UndoItem
+  // CPWL_EditImpl_UndoItem
   void Redo() override;
   void Undo() override;
 
  private:
-  CFX_UnownedPtr<CFX_Edit> m_pEdit;
+  CFX_UnownedPtr<CPWL_EditImpl> m_pEdit;
 
   CPVT_WordPlace m_wpOld;
   CPVT_WordPlace m_wpNew;
@@ -219,9 +220,9 @@ class CFXEU_Backspace : public CFX_Edit_UndoItem {
   CPVT_WordProps m_WordProps;
 };
 
-class CFXEU_Delete : public CFX_Edit_UndoItem {
+class CFXEU_Delete : public CPWL_EditImpl_UndoItem {
  public:
-  CFXEU_Delete(CFX_Edit* pEdit,
+  CFXEU_Delete(CPWL_EditImpl* pEdit,
                const CPVT_WordPlace& wpOldPlace,
                const CPVT_WordPlace& wpNewPlace,
                uint16_t word,
@@ -231,12 +232,12 @@ class CFXEU_Delete : public CFX_Edit_UndoItem {
                bool bSecEnd);
   ~CFXEU_Delete() override;
 
-  // CFX_Edit_UndoItem
+  // CPWL_EditImpl_UndoItem
   void Redo() override;
   void Undo() override;
 
  private:
-  CFX_UnownedPtr<CFX_Edit> m_pEdit;
+  CFX_UnownedPtr<CPWL_EditImpl> m_pEdit;
 
   CPVT_WordPlace m_wpOld;
   CPVT_WordPlace m_wpNew;
@@ -247,39 +248,39 @@ class CFXEU_Delete : public CFX_Edit_UndoItem {
   bool m_bSecEnd;
 };
 
-class CFXEU_Clear : public CFX_Edit_UndoItem {
+class CFXEU_Clear : public CPWL_EditImpl_UndoItem {
  public:
-  CFXEU_Clear(CFX_Edit* pEdit,
+  CFXEU_Clear(CPWL_EditImpl* pEdit,
               const CPVT_WordRange& wrSel,
               const CFX_WideString& swText);
   ~CFXEU_Clear() override;
 
-  // CFX_Edit_UndoItem
+  // CPWL_EditImpl_UndoItem
   void Redo() override;
   void Undo() override;
 
  private:
-  CFX_UnownedPtr<CFX_Edit> m_pEdit;
+  CFX_UnownedPtr<CPWL_EditImpl> m_pEdit;
 
   CPVT_WordRange m_wrSel;
   CFX_WideString m_swText;
 };
 
-class CFXEU_InsertText : public CFX_Edit_UndoItem {
+class CFXEU_InsertText : public CPWL_EditImpl_UndoItem {
  public:
-  CFXEU_InsertText(CFX_Edit* pEdit,
+  CFXEU_InsertText(CPWL_EditImpl* pEdit,
                    const CPVT_WordPlace& wpOldPlace,
                    const CPVT_WordPlace& wpNewPlace,
                    const CFX_WideString& swText,
                    int32_t charset);
   ~CFXEU_InsertText() override;
 
-  // CFX_Edit_UndoItem
+  // CPWL_EditImpl_UndoItem
   void Redo() override;
   void Undo() override;
 
  private:
-  CFX_UnownedPtr<CFX_Edit> m_pEdit;
+  CFX_UnownedPtr<CPWL_EditImpl> m_pEdit;
 
   CPVT_WordPlace m_wpOld;
   CPVT_WordPlace m_wpNew;
@@ -287,11 +288,11 @@ class CFXEU_InsertText : public CFX_Edit_UndoItem {
   int32_t m_nCharset;
 };
 
-class CFX_Edit {
+class CPWL_EditImpl {
  public:
   static void DrawEdit(CFX_RenderDevice* pDevice,
                        CFX_Matrix* pUser2Device,
-                       CFX_Edit* pEdit,
+                       CPWL_EditImpl* pEdit,
                        FX_COLORREF crTextFill,
                        const CFX_FloatRect& rcClip,
                        const CFX_PointF& ptOffset,
@@ -299,15 +300,15 @@ class CFX_Edit {
                        CFX_SystemHandler* pSystemHandler,
                        CFFL_FormFiller* pFFLData);
 
-  CFX_Edit();
-  ~CFX_Edit();
+  CPWL_EditImpl();
+  ~CPWL_EditImpl();
 
   void SetFontMap(IPVT_FontMap* pFontMap);
   void SetNotify(CPWL_EditCtrl* pNotify);
   void SetOprNotify(CPWL_Edit* pOprNotify);
 
   // Returns an iterator for the contents. Should not be released.
-  CFX_Edit_Iterator* GetIterator();
+  CPWL_EditImpl_Iterator* GetIterator();
   IPVT_FontMap* GetFontMap();
   void Initialize();
 
@@ -396,7 +397,7 @@ class CFX_Edit {
                                   uint16_t SubWord);
 
  private:
-  friend class CFX_Edit_Iterator;
+  friend class CPWL_EditImpl_Iterator;
   friend class CFXEU_InsertWord;
   friend class CFXEU_InsertReturn;
   friend class CFXEU_Backspace;
@@ -445,23 +446,23 @@ class CFX_Edit {
   void SetCaretInfo();
   void SetCaretOrigin();
 
-  void AddEditUndoItem(std::unique_ptr<CFX_Edit_UndoItem> pEditUndoItem);
+  void AddEditUndoItem(std::unique_ptr<CPWL_EditImpl_UndoItem> pEditUndoItem);
 
  private:
   std::unique_ptr<CPDF_VariableText> m_pVT;
   CFX_UnownedPtr<CPWL_EditCtrl> m_pNotify;
   CFX_UnownedPtr<CPWL_Edit> m_pOprNotify;
-  std::unique_ptr<CFX_Edit_Provider> m_pVTProvider;
+  std::unique_ptr<CPWL_EditImpl_Provider> m_pVTProvider;
   CPVT_WordPlace m_wpCaret;
   CPVT_WordPlace m_wpOldCaret;
-  CFX_Edit_Select m_SelState;
+  CPWL_EditImpl_Select m_SelState;
   CFX_PointF m_ptScrollPos;
   CFX_PointF m_ptRefreshScrollPos;
   bool m_bEnableScroll;
-  std::unique_ptr<CFX_Edit_Iterator> m_pIterator;
-  CFX_Edit_Refresh m_Refresh;
+  std::unique_ptr<CPWL_EditImpl_Iterator> m_pIterator;
+  CPWL_EditImpl_Refresh m_Refresh;
   CFX_PointF m_ptCaret;
-  CFX_Edit_Undo m_Undo;
+  CPWL_EditImpl_Undo m_Undo;
   int32_t m_nAlignment;
   bool m_bNotifyFlag;
   bool m_bEnableOverflow;
@@ -471,10 +472,11 @@ class CFX_Edit {
   bool m_bOprNotify;
 };
 
-class CFX_Edit_Iterator {
+class CPWL_EditImpl_Iterator {
  public:
-  CFX_Edit_Iterator(CFX_Edit* pEdit, CPDF_VariableText::Iterator* pVTIterator);
-  ~CFX_Edit_Iterator();
+  CPWL_EditImpl_Iterator(CPWL_EditImpl* pEdit,
+                         CPDF_VariableText::Iterator* pVTIterator);
+  ~CPWL_EditImpl_Iterator();
 
   bool NextWord();
   bool PrevWord();
@@ -485,14 +487,14 @@ class CFX_Edit_Iterator {
   const CPVT_WordPlace& GetAt() const;
 
  private:
-  CFX_UnownedPtr<CFX_Edit> m_pEdit;
+  CFX_UnownedPtr<CPWL_EditImpl> m_pEdit;
   CPDF_VariableText::Iterator* m_pVTIterator;
 };
 
-class CFX_Edit_Provider : public CPDF_VariableText::Provider {
+class CPWL_EditImpl_Provider : public CPDF_VariableText::Provider {
  public:
-  explicit CFX_Edit_Provider(IPVT_FontMap* pFontMap);
-  ~CFX_Edit_Provider() override;
+  explicit CPWL_EditImpl_Provider(IPVT_FontMap* pFontMap);
+  ~CPWL_EditImpl_Provider() override;
 
   IPVT_FontMap* GetFontMap() const;
 
@@ -510,4 +512,4 @@ class CFX_Edit_Provider : public CPDF_VariableText::Provider {
   IPVT_FontMap* m_pFontMap;
 };
 
-#endif  // FPDFSDK_FXEDIT_FXET_EDIT_H_
+#endif  // FPDFSDK_PDFWINDOW_CPWL_EDIT_IMPL_H_
diff --git a/fpdfsdk/pdfwindow/cpwl_list_box.cpp b/fpdfsdk/pdfwindow/cpwl_list_box.cpp
index ffa5b4780f..7e820bfbfa 100644
--- a/fpdfsdk/pdfwindow/cpwl_list_box.cpp
+++ b/fpdfsdk/pdfwindow/cpwl_list_box.cpp
@@ -9,10 +9,10 @@
 #include <sstream>
 
 #include "core/fxge/cfx_renderdevice.h"
-#include "fpdfsdk/fxedit/fxet_edit.h"
-#include "fpdfsdk/fxedit/fxet_list.h"
 #include "fpdfsdk/pdfwindow/cpwl_edit.h"
 #include "fpdfsdk/pdfwindow/cpwl_edit_ctrl.h"
+#include "fpdfsdk/pdfwindow/cpwl_edit_impl.h"
+#include "fpdfsdk/pdfwindow/cpwl_list_impl.h"
 #include "fpdfsdk/pdfwindow/cpwl_scroll_bar.h"
 #include "fpdfsdk/pdfwindow/cpwl_wnd.h"
 #include "public/fpdf_fwlevent.h"
@@ -63,7 +63,7 @@ void CPWL_List_Notify::IOnInvalidateRect(CFX_FloatRect* pRect) {
 }
 
 CPWL_ListBox::CPWL_ListBox()
-    : m_pList(new CFX_ListCtrl),
+    : m_pList(new CPWL_ListCtrl),
       m_bMouseDown(false),
       m_bHoverSel(false),
       m_pFillerNotify(nullptr) {}
@@ -107,7 +107,7 @@ void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice,
       continue;
 
     CFX_PointF ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
-    if (CFX_Edit* pEdit = m_pList->GetItemEdit(i)) {
+    if (CPWL_EditImpl* pEdit = m_pList->GetItemEdit(i)) {
       CFX_FloatRect rcContent = pEdit->GetContentRect();
       if (rcContent.Width() > rcClient.Width())
         rcItem.Intersect(rcList);
@@ -118,22 +118,23 @@ void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice,
     if (m_pList->IsItemSelected(i)) {
       CFX_SystemHandler* pSysHandler = GetSystemHandler();
       if (pSysHandler && pSysHandler->IsSelectionImplemented()) {
-        CFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
-                           GetTextColor().ToFXColor(255), rcList, ptOffset,
-                           nullptr, pSysHandler, m_pFormFiller.Get());
+        CPWL_EditImpl::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
+                                GetTextColor().ToFXColor(255), rcList, ptOffset,
+                                nullptr, pSysHandler, m_pFormFiller.Get());
         pSysHandler->OutputSelectedRect(m_pFormFiller.Get(), rcItem);
       } else {
         pDevice->DrawFillRect(pUser2Device, rcItem,
                               ArgbEncode(255, 0, 51, 113));
-        CFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
-                           ArgbEncode(255, 255, 255, 255), rcList, ptOffset,
-                           nullptr, pSysHandler, m_pFormFiller.Get());
+        CPWL_EditImpl::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
+                                ArgbEncode(255, 255, 255, 255), rcList,
+                                ptOffset, nullptr, pSysHandler,
+                                m_pFormFiller.Get());
       }
     } else {
       CFX_SystemHandler* pSysHandler = GetSystemHandler();
-      CFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
-                         GetTextColor().ToFXColor(255), rcList, ptOffset,
-                         nullptr, pSysHandler, nullptr);
+      CPWL_EditImpl::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
+                              GetTextColor().ToFXColor(255), rcList, ptOffset,
+                              nullptr, pSysHandler, nullptr);
     }
   }
 }
diff --git a/fpdfsdk/pdfwindow/cpwl_list_box.h b/fpdfsdk/pdfwindow/cpwl_list_box.h
index f41a6dd87f..d76c7a5c5a 100644
--- a/fpdfsdk/pdfwindow/cpwl_list_box.h
+++ b/fpdfsdk/pdfwindow/cpwl_list_box.h
@@ -12,7 +12,7 @@
 #include "core/fxcrt/cfx_unowned_ptr.h"
 #include "fpdfsdk/pdfwindow/cpwl_wnd.h"
 
-class CFX_ListCtrl;
+class CPWL_ListCtrl;
 class CPWL_List_Notify;
 class CPWL_ListBox;
 class IPWL_Filler_Notify;
@@ -97,7 +97,7 @@ class CPWL_ListBox : public CPWL_Wnd {
   void AttachFFLData(CFFL_FormFiller* pData) { m_pFormFiller = pData; }
 
  protected:
-  std::unique_ptr<CFX_ListCtrl> m_pList;
+  std::unique_ptr<CPWL_ListCtrl> m_pList;
   std::unique_ptr<CPWL_List_Notify> m_pListNotify;
   bool m_bMouseDown;
   bool m_bHoverSel;
diff --git a/fpdfsdk/fxedit/fxet_list.cpp b/fpdfsdk/pdfwindow/cpwl_list_impl.cpp
index fa085f237f..66b2e77747 100644
--- a/fpdfsdk/fxedit/fxet_list.cpp
+++ b/fpdfsdk/pdfwindow/cpwl_list_impl.cpp
@@ -4,52 +4,52 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "fpdfsdk/fxedit/fxet_list.h"
+#include "fpdfsdk/pdfwindow/cpwl_list_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "core/fpdfdoc/cpvt_word.h"
 #include "core/fxcrt/fx_extension.h"
-#include "fpdfsdk/fxedit/fxet_edit.h"
+#include "fpdfsdk/pdfwindow/cpwl_edit_impl.h"
 #include "fpdfsdk/pdfwindow/cpwl_list_box.h"
 #include "third_party/base/stl_util.h"
 
-CFX_ListCtrl::Item::Item()
-    : m_pEdit(new CFX_Edit),
+CPWL_ListCtrl::Item::Item()
+    : m_pEdit(new CPWL_EditImpl),
       m_bSelected(false),
       m_rcListItem(0.0f, 0.0f, 0.0f, 0.0f) {
   m_pEdit->SetAlignmentV(1, true);
   m_pEdit->Initialize();
 }
 
-CFX_ListCtrl::Item::~Item() {}
+CPWL_ListCtrl::Item::~Item() {}
 
-void CFX_ListCtrl::Item::SetFontMap(IPVT_FontMap* pFontMap) {
+void CPWL_ListCtrl::Item::SetFontMap(IPVT_FontMap* pFontMap) {
   m_pEdit->SetFontMap(pFontMap);
 }
 
-void CFX_ListCtrl::Item::SetText(const CFX_WideString& text) {
+void CPWL_ListCtrl::Item::SetText(const CFX_WideString& text) {
   m_pEdit->SetText(text);
 }
 
-void CFX_ListCtrl::Item::SetFontSize(float fFontSize) {
+void CPWL_ListCtrl::Item::SetFontSize(float fFontSize) {
   m_pEdit->SetFontSize(fFontSize);
 }
 
-float CFX_ListCtrl::Item::GetItemHeight() const {
+float CPWL_ListCtrl::Item::GetItemHeight() const {
   return m_pEdit->GetContentRect().Height();
 }
 
-uint16_t CFX_ListCtrl::Item::GetFirstChar() const {
+uint16_t CPWL_ListCtrl::Item::GetFirstChar() const {
   CPVT_Word word;
-  CFX_Edit_Iterator* pIterator = m_pEdit->GetIterator();
+  CPWL_EditImpl_Iterator* pIterator = m_pEdit->GetIterator();
   pIterator->SetAt(1);
   pIterator->GetWord(word);
   return word.Word;
 }
 
-CFX_WideString CFX_ListCtrl::Item::GetText() const {
+CFX_WideString CPWL_ListCtrl::Item::GetText() const {
   return m_pEdit->GetText();
 }
 
@@ -98,7 +98,7 @@ void CPLST_Select::Done() {
   }
 }
 
-CFX_ListCtrl::CFX_ListCtrl()
+CPWL_ListCtrl::CPWL_ListCtrl()
     : m_pNotify(nullptr),
       m_bNotifyFlag(false),
       m_nSelItem(-1),
@@ -109,61 +109,61 @@ CFX_ListCtrl::CFX_ListCtrl()
       m_pFontMap(nullptr),
       m_bMultiple(false) {}
 
-CFX_ListCtrl::~CFX_ListCtrl() {
+CPWL_ListCtrl::~CPWL_ListCtrl() {
   Empty();
 }
 
-CFX_PointF CFX_ListCtrl::InToOut(const CFX_PointF& point) const {
+CFX_PointF CPWL_ListCtrl::InToOut(const CFX_PointF& point) const {
   CFX_FloatRect rcPlate = m_rcPlate;
   return CFX_PointF(point.x - (m_ptScrollPos.x - rcPlate.left),
                     point.y - (m_ptScrollPos.y - rcPlate.top));
 }
 
-CFX_PointF CFX_ListCtrl::OutToIn(const CFX_PointF& point) const {
+CFX_PointF CPWL_ListCtrl::OutToIn(const CFX_PointF& point) const {
   CFX_FloatRect rcPlate = m_rcPlate;
   return CFX_PointF(point.x + (m_ptScrollPos.x - rcPlate.left),
                     point.y + (m_ptScrollPos.y - rcPlate.top));
 }
 
-CFX_FloatRect CFX_ListCtrl::InToOut(const CFX_FloatRect& rect) const {
+CFX_FloatRect CPWL_ListCtrl::InToOut(const CFX_FloatRect& rect) const {
   CFX_PointF ptLeftBottom = InToOut(CFX_PointF(rect.left, rect.bottom));
   CFX_PointF ptRightTop = InToOut(CFX_PointF(rect.right, rect.top));
   return CFX_FloatRect(ptLeftBottom.x, ptLeftBottom.y, ptRightTop.x,
                        ptRightTop.y);
 }
 
-CFX_FloatRect CFX_ListCtrl::OutToIn(const CFX_FloatRect& rect) const {
+CFX_FloatRect CPWL_ListCtrl::OutToIn(const CFX_FloatRect& rect) const {
   CFX_PointF ptLeftBottom = OutToIn(CFX_PointF(rect.left, rect.bottom));
   CFX_PointF ptRightTop = OutToIn(CFX_PointF(rect.right, rect.top));
   return CFX_FloatRect(ptLeftBottom.x, ptLeftBottom.y, ptRightTop.x,
                        ptRightTop.y);
 }
 
-CFX_PointF CFX_ListCtrl::InnerToOuter(const CFX_PointF& point) const {
+CFX_PointF CPWL_ListCtrl::InnerToOuter(const CFX_PointF& point) const {
   return CFX_PointF(point.x + GetBTPoint().x, GetBTPoint().y - point.y);
 }
 
-CFX_PointF CFX_ListCtrl::OuterToInner(const CFX_PointF& point) const {
+CFX_PointF CPWL_ListCtrl::OuterToInner(const CFX_PointF& point) const {
   return CFX_PointF(point.x - GetBTPoint().x, GetBTPoint().y - point.y);
 }
 
-CFX_FloatRect CFX_ListCtrl::InnerToOuter(const CFX_FloatRect& rect) const {
+CFX_FloatRect CPWL_ListCtrl::InnerToOuter(const CFX_FloatRect& rect) const {
   CFX_PointF ptLeftTop = InnerToOuter(CFX_PointF(rect.left, rect.top));
   CFX_PointF ptRightBottom = InnerToOuter(CFX_PointF(rect.right, rect.bottom));
   return CFX_FloatRect(ptLeftTop.x, ptRightBottom.y, ptRightBottom.x,
                        ptLeftTop.y);
 }
 
-CFX_FloatRect CFX_ListCtrl::OuterToInner(const CFX_FloatRect& rect) const {
+CFX_FloatRect CPWL_ListCtrl::OuterToInner(const CFX_FloatRect& rect) const {
   CFX_PointF ptLeftTop = OuterToInner(CFX_PointF(rect.left, rect.top));
   CFX_PointF ptRightBottom = OuterToInner(CFX_PointF(rect.right, rect.bottom));
   return CFX_FloatRect(ptLeftTop.x, ptRightBottom.y, ptRightBottom.x,
                        ptLeftTop.y);
 }
 
-void CFX_ListCtrl::OnMouseDown(const CFX_PointF& point,
-                               bool bShift,
-                               bool bCtrl) {
+void CPWL_ListCtrl::OnMouseDown(const CFX_PointF& point,
+                                bool bShift,
+                                bool bCtrl) {
   int32_t nHitIndex = GetItemIndex(point);
 
   if (IsMultipleSel()) {
@@ -200,9 +200,9 @@ void CFX_ListCtrl::OnMouseDown(const CFX_PointF& point,
     ScrollToListItem(nHitIndex);
 }
 
-void CFX_ListCtrl::OnMouseMove(const CFX_PointF& point,
-                               bool bShift,
-                               bool bCtrl) {
+void CPWL_ListCtrl::OnMouseMove(const CFX_PointF& point,
+                                bool bShift,
+                                bool bCtrl) {
   int32_t nHitIndex = GetItemIndex(point);
 
   if (IsMultipleSel()) {
@@ -228,7 +228,7 @@ void CFX_ListCtrl::OnMouseMove(const CFX_PointF& point,
     ScrollToListItem(nHitIndex);
 }
 
-void CFX_ListCtrl::OnVK(int32_t nItemIndex, bool bShift, bool bCtrl) {
+void CPWL_ListCtrl::OnVK(int32_t nItemIndex, bool bShift, bool bCtrl) {
   if (IsMultipleSel()) {
     if (nItemIndex >= 0 && nItemIndex < GetCount()) {
       if (bCtrl) {
@@ -253,31 +253,31 @@ void CFX_ListCtrl::OnVK(int32_t nItemIndex, bool bShift, bool bCtrl) {
     ScrollToListItem(nItemIndex);
 }
 
-void CFX_ListCtrl::OnVK_UP(bool bShift, bool bCtrl) {
+void CPWL_ListCtrl::OnVK_UP(bool bShift, bool bCtrl) {
   OnVK(IsMultipleSel() ? GetCaret() - 1 : GetSelect() - 1, bShift, bCtrl);
 }
 
-void CFX_ListCtrl::OnVK_DOWN(bool bShift, bool bCtrl) {
+void CPWL_ListCtrl::OnVK_DOWN(bool bShift, bool bCtrl) {
   OnVK(IsMultipleSel() ? GetCaret() + 1 : GetSelect() + 1, bShift, bCtrl);
 }
 
-void CFX_ListCtrl::OnVK_LEFT(bool bShift, bool bCtrl) {
+void CPWL_ListCtrl::OnVK_LEFT(bool bShift, bool bCtrl) {
   OnVK(0, bShift, bCtrl);
 }
 
-void CFX_ListCtrl::OnVK_RIGHT(bool bShift, bool bCtrl) {
+void CPWL_ListCtrl::OnVK_RIGHT(bool bShift, bool bCtrl) {
   OnVK(GetCount() - 1, bShift, bCtrl);
 }
 
-void CFX_ListCtrl::OnVK_HOME(bool bShift, bool bCtrl) {
+void CPWL_ListCtrl::OnVK_HOME(bool bShift, bool bCtrl) {
   OnVK(0, bShift, bCtrl);
 }
 
-void CFX_ListCtrl::OnVK_END(bool bShift, bool bCtrl) {
+void CPWL_ListCtrl::OnVK_END(bool bShift, bool bCtrl) {
   OnVK(GetCount() - 1, bShift, bCtrl);
 }
 
-bool CFX_ListCtrl::OnChar(uint16_t nChar, bool bShift, bool bCtrl) {
+bool CPWL_ListCtrl::OnChar(uint16_t nChar, bool bShift, bool bCtrl) {
   int32_t nIndex = GetLastSelected();
   int32_t nFindIndex = FindNext(nIndex, nChar);
 
@@ -288,7 +288,7 @@ bool CFX_ListCtrl::OnChar(uint16_t nChar, bool bShift, bool bCtrl) {
   return false;
 }
 
-void CFX_ListCtrl::SetPlateRect(const CFX_FloatRect& rect) {
+void CPWL_ListCtrl::SetPlateRect(const CFX_FloatRect& rect) {
   m_rcPlate = rect;
   m_ptScrollPos.x = rect.left;
   SetScrollPos(CFX_PointF(rect.left, rect.top));
@@ -296,11 +296,11 @@ void CFX_ListCtrl::SetPlateRect(const CFX_FloatRect& rect) {
   InvalidateItem(-1);
 }
 
-CFX_FloatRect CFX_ListCtrl::GetItemRect(int32_t nIndex) const {
+CFX_FloatRect CPWL_ListCtrl::GetItemRect(int32_t nIndex) const {
   return InToOut(GetItemRectInternal(nIndex));
 }
 
-CFX_FloatRect CFX_ListCtrl::GetItemRectInternal(int32_t nIndex) const {
+CFX_FloatRect CPWL_ListCtrl::GetItemRectInternal(int32_t nIndex) const {
   if (!pdfium::IndexInBounds(m_ListItems, nIndex) || !m_ListItems[nIndex])
     return CFX_FloatRect();
 
@@ -310,12 +310,12 @@ CFX_FloatRect CFX_ListCtrl::GetItemRectInternal(int32_t nIndex) const {
   return InnerToOuter(rcItem);
 }
 
-void CFX_ListCtrl::AddString(const CFX_WideString& str) {
+void CPWL_ListCtrl::AddString(const CFX_WideString& str) {
   AddItem(str);
   ReArrange(GetCount() - 1);
 }
 
-void CFX_ListCtrl::SetMultipleSelect(int32_t nItemIndex, bool bSelected) {
+void CPWL_ListCtrl::SetMultipleSelect(int32_t nItemIndex, bool bSelected) {
   if (!IsValid(nItemIndex))
     return;
 
@@ -330,7 +330,7 @@ void CFX_ListCtrl::SetMultipleSelect(int32_t nItemIndex, bool bSelected) {
   }
 }
 
-void CFX_ListCtrl::SetSingleSelect(int32_t nItemIndex) {
+void CPWL_ListCtrl::SetSingleSelect(int32_t nItemIndex) {
   if (!IsValid(nItemIndex))
     return;
 
@@ -346,7 +346,7 @@ void CFX_ListCtrl::SetSingleSelect(int32_t nItemIndex) {
   }
 }
 
-void CFX_ListCtrl::SetCaret(int32_t nItemIndex) {
+void CPWL_ListCtrl::SetCaret(int32_t nItemIndex) {
   if (!IsValid(nItemIndex))
     return;
 
@@ -361,7 +361,7 @@ void CFX_ListCtrl::SetCaret(int32_t nItemIndex) {
   }
 }
 
-void CFX_ListCtrl::InvalidateItem(int32_t nItemIndex) {
+void CPWL_ListCtrl::InvalidateItem(int32_t nItemIndex) {
   if (m_pNotify) {
     if (nItemIndex == -1) {
       if (!m_bNotifyFlag) {
@@ -386,7 +386,7 @@ void CFX_ListCtrl::InvalidateItem(int32_t nItemIndex) {
   }
 }
 
-void CFX_ListCtrl::SelectItems() {
+void CPWL_ListCtrl::SelectItems() {
   for (const auto& item : m_aSelItems) {
     if (item.second != CPLST_Select::NORMAL)
       SetMultipleSelect(item.first, item.second == CPLST_Select::SELECTING);
@@ -394,7 +394,7 @@ void CFX_ListCtrl::SelectItems() {
   m_aSelItems.Done();
 }
 
-void CFX_ListCtrl::Select(int32_t nItemIndex) {
+void CPWL_ListCtrl::Select(int32_t nItemIndex) {
   if (!IsValid(nItemIndex))
     return;
 
@@ -406,14 +406,14 @@ void CFX_ListCtrl::Select(int32_t nItemIndex) {
   }
 }
 
-bool CFX_ListCtrl::IsItemVisible(int32_t nItemIndex) const {
+bool CPWL_ListCtrl::IsItemVisible(int32_t nItemIndex) const {
   CFX_FloatRect rcPlate = m_rcPlate;
   CFX_FloatRect rcItem = GetItemRect(nItemIndex);
 
   return rcItem.bottom >= rcPlate.bottom && rcItem.top <= rcPlate.top;
 }
 
-void CFX_ListCtrl::ScrollToListItem(int32_t nItemIndex) {
+void CPWL_ListCtrl::ScrollToListItem(int32_t nItemIndex) {
   if (!IsValid(nItemIndex))
     return;
 
@@ -432,7 +432,7 @@ void CFX_ListCtrl::ScrollToListItem(int32_t nItemIndex) {
   }
 }
 
-void CFX_ListCtrl::SetScrollInfo() {
+void CPWL_ListCtrl::SetScrollInfo() {
   if (m_pNotify) {
     CFX_FloatRect rcPlate = m_rcPlate;
     CFX_FloatRect rcContent = GetContentRectInternal();
@@ -447,11 +447,11 @@ void CFX_ListCtrl::SetScrollInfo() {
   }
 }
 
-void CFX_ListCtrl::SetScrollPos(const CFX_PointF& point) {
+void CPWL_ListCtrl::SetScrollPos(const CFX_PointF& point) {
   SetScrollPosY(point.y);
 }
 
-void CFX_ListCtrl::SetScrollPosY(float fy) {
+void CPWL_ListCtrl::SetScrollPosY(float fy) {
   if (!IsFloatEqual(m_ptScrollPos.y, fy)) {
     CFX_FloatRect rcPlate = m_rcPlate;
     CFX_FloatRect rcContent = GetContentRectInternal();
@@ -479,15 +479,15 @@ void CFX_ListCtrl::SetScrollPosY(float fy) {
   }
 }
 
-CFX_FloatRect CFX_ListCtrl::GetContentRectInternal() const {
+CFX_FloatRect CPWL_ListCtrl::GetContentRectInternal() const {
   return InnerToOuter(m_rcContent);
 }
 
-CFX_FloatRect CFX_ListCtrl::GetContentRect() const {
+CFX_FloatRect CPWL_ListCtrl::GetContentRect() const {
   return InToOut(GetContentRectInternal());
 }
 
-void CFX_ListCtrl::ReArrange(int32_t nItemIndex) {
+void CPWL_ListCtrl::ReArrange(int32_t nItemIndex) {
   float fPosY = 0.0f;
   if (pdfium::IndexInBounds(m_ListItems, nItemIndex - 1) &&
       m_ListItems[nItemIndex - 1]) {
@@ -505,14 +505,14 @@ void CFX_ListCtrl::ReArrange(int32_t nItemIndex) {
   SetScrollInfo();
 }
 
-void CFX_ListCtrl::SetTopItem(int32_t nIndex) {
+void CPWL_ListCtrl::SetTopItem(int32_t nIndex) {
   if (IsValid(nIndex)) {
     CFX_FloatRect rcItem = GetItemRectInternal(nIndex);
     SetScrollPosY(rcItem.top);
   }
 }
 
-int32_t CFX_ListCtrl::GetTopItem() const {
+int32_t CPWL_ListCtrl::GetTopItem() const {
   int32_t nItemIndex = GetItemIndex(GetBTPoint());
   if (!IsItemVisible(nItemIndex) && IsItemVisible(nItemIndex + 1))
     nItemIndex += 1;
@@ -520,16 +520,16 @@ int32_t CFX_ListCtrl::GetTopItem() const {
   return nItemIndex;
 }
 
-void CFX_ListCtrl::Empty() {
+void CPWL_ListCtrl::Empty() {
   m_ListItems.clear();
   InvalidateItem(-1);
 }
 
-void CFX_ListCtrl::Cancel() {
+void CPWL_ListCtrl::Cancel() {
   m_aSelItems.DeselectAll();
 }
 
-int32_t CFX_ListCtrl::GetItemIndex(const CFX_PointF& point) const {
+int32_t CPWL_ListCtrl::GetItemIndex(const CFX_PointF& point) const {
   CFX_PointF pt = OuterToInner(OutToIn(point));
   bool bFirst = true;
   bool bLast = true;
@@ -551,13 +551,13 @@ int32_t CFX_ListCtrl::GetItemIndex(const CFX_PointF& point) const {
   return -1;
 }
 
-CFX_WideString CFX_ListCtrl::GetText() const {
+CFX_WideString CPWL_ListCtrl::GetText() const {
   if (IsMultipleSel())
     return GetItemText(m_nCaretIndex);
   return GetItemText(m_nSelItem);
 }
 
-void CFX_ListCtrl::AddItem(const CFX_WideString& str) {
+void CPWL_ListCtrl::AddItem(const CFX_WideString& str) {
   auto pListItem = pdfium::MakeUnique<Item>();
   pListItem->SetFontMap(m_pFontMap.Get());
   pListItem->SetFontSize(m_fFontSize);
@@ -565,23 +565,23 @@ void CFX_ListCtrl::AddItem(const CFX_WideString& str) {
   m_ListItems.push_back(std::move(pListItem));
 }
 
-CFX_Edit* CFX_ListCtrl::GetItemEdit(int32_t nIndex) const {
+CPWL_EditImpl* CPWL_ListCtrl::GetItemEdit(int32_t nIndex) const {
   if (!pdfium::IndexInBounds(m_ListItems, nIndex) || !m_ListItems[nIndex])
     return nullptr;
   return m_ListItems[nIndex]->GetEdit();
 }
 
-int32_t CFX_ListCtrl::GetCount() const {
+int32_t CPWL_ListCtrl::GetCount() const {
   return pdfium::CollectionSize<int32_t>(m_ListItems);
 }
 
-float CFX_ListCtrl::GetFirstHeight() const {
+float CPWL_ListCtrl::GetFirstHeight() const {
   if (m_ListItems.empty() || !m_ListItems.front())
     return 1.0f;
   return m_ListItems.front()->GetItemHeight();
 }
 
-int32_t CFX_ListCtrl::GetFirstSelected() const {
+int32_t CPWL_ListCtrl::GetFirstSelected() const {
   int32_t i = 0;
   for (const auto& pListItem : m_ListItems) {
     if (pListItem && pListItem->IsSelected())
@@ -591,7 +591,7 @@ int32_t CFX_ListCtrl::GetFirstSelected() const {
   return -1;
 }
 
-int32_t CFX_ListCtrl::GetLastSelected() const {
+int32_t CPWL_ListCtrl::GetLastSelected() const {
   for (auto iter = m_ListItems.rbegin(); iter != m_ListItems.rend(); ++iter) {
     if (*iter && (*iter)->IsSelected())
       return &*iter - &m_ListItems.front();
@@ -599,7 +599,7 @@ int32_t CFX_ListCtrl::GetLastSelected() const {
   return -1;
 }
 
-int32_t CFX_ListCtrl::FindNext(int32_t nIndex, wchar_t nChar) const {
+int32_t CPWL_ListCtrl::FindNext(int32_t nIndex, wchar_t nChar) const {
   int32_t nCircleIndex = nIndex;
   int32_t sz = pdfium::CollectionSize<int32_t>(m_ListItems);
   for (int32_t i = 0; i < sz; i++) {
@@ -616,21 +616,21 @@ int32_t CFX_ListCtrl::FindNext(int32_t nIndex, wchar_t nChar) const {
   return nCircleIndex;
 }
 
-bool CFX_ListCtrl::IsItemSelected(int32_t nIndex) const {
+bool CPWL_ListCtrl::IsItemSelected(int32_t nIndex) const {
   return pdfium::IndexInBounds(m_ListItems, nIndex) && m_ListItems[nIndex] &&
          m_ListItems[nIndex]->IsSelected();
 }
 
-void CFX_ListCtrl::SetItemSelect(int32_t nIndex, bool bSelected) {
+void CPWL_ListCtrl::SetItemSelect(int32_t nIndex, bool bSelected) {
   if (pdfium::IndexInBounds(m_ListItems, nIndex) && m_ListItems[nIndex])
     m_ListItems[nIndex]->SetSelect(bSelected);
 }
 
-bool CFX_ListCtrl::IsValid(int32_t nItemIndex) const {
+bool CPWL_ListCtrl::IsValid(int32_t nItemIndex) const {
   return pdfium::IndexInBounds(m_ListItems, nItemIndex);
 }
 
-CFX_WideString CFX_ListCtrl::GetItemText(int32_t nIndex) const {
+CFX_WideString CPWL_ListCtrl::GetItemText(int32_t nIndex) const {
   if (pdfium::IndexInBounds(m_ListItems, nIndex) && m_ListItems[nIndex])
     return m_ListItems[nIndex]->GetText();
   return L"";
diff --git a/fpdfsdk/fxedit/fxet_list.h b/fpdfsdk/pdfwindow/cpwl_list_impl.h
index 83b8d9e865..167def057e 100644
--- a/fpdfsdk/fxedit/fxet_list.h
+++ b/fpdfsdk/pdfwindow/cpwl_list_impl.h
@@ -4,8 +4,8 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#ifndef FPDFSDK_FXEDIT_FXET_LIST_H_
-#define FPDFSDK_FXEDIT_FXET_LIST_H_
+#ifndef FPDFSDK_PDFWINDOW_CPWL_LIST_IMPL_H_
+#define FPDFSDK_PDFWINDOW_CPWL_LIST_IMPL_H_
 
 #include <map>
 #include <memory>
@@ -14,8 +14,8 @@
 #include "core/fxcrt/cfx_unowned_ptr.h"
 #include "core/fxcrt/fx_coordinates.h"
 
-class CFX_Edit;
-class CFX_Edit_Iterator;
+class CPWL_EditImpl;
+class CPWL_EditImpl_Iterator;
 class CPWL_List_Notify;
 class IPVT_FontMap;
 
@@ -41,10 +41,10 @@ class CPLST_Select {
   std::map<int32_t, State> m_Items;
 };
 
-class CFX_ListCtrl {
+class CPWL_ListCtrl {
  public:
-  CFX_ListCtrl();
-  ~CFX_ListCtrl();
+  CPWL_ListCtrl();
+  ~CPWL_ListCtrl();
 
   void SetNotify(CPWL_List_Notify* pNotify) { m_pNotify = pNotify; }
   void OnMouseDown(const CFX_PointF& point, bool bShift, bool bCtrl);
@@ -81,7 +81,7 @@ class CFX_ListCtrl {
   void SetPlateRect(const CFX_FloatRect& rect);
 
   float GetFontSize() const { return m_fFontSize; }
-  CFX_Edit* GetItemEdit(int32_t nIndex) const;
+  CPWL_EditImpl* GetItemEdit(int32_t nIndex) const;
   int32_t GetCount() const;
   bool IsItemSelected(int32_t nIndex) const;
   float GetFirstHeight() const;
@@ -97,7 +97,7 @@ class CFX_ListCtrl {
     ~Item();
 
     void SetFontMap(IPVT_FontMap* pFontMap);
-    CFX_Edit* GetEdit() const { return m_pEdit.get(); }
+    CPWL_EditImpl* GetEdit() const { return m_pEdit.get(); }
 
     void SetRect(const CFX_FloatRect& rect) { m_rcListItem = rect; }
     void SetSelect(bool bSelected) { m_bSelected = bSelected; }
@@ -111,9 +111,9 @@ class CFX_ListCtrl {
     uint16_t GetFirstChar() const;
 
    private:
-    CFX_Edit_Iterator* GetIterator() const;
+    CPWL_EditImpl_Iterator* GetIterator() const;
 
-    std::unique_ptr<CFX_Edit> m_pEdit;
+    std::unique_ptr<CPWL_EditImpl> m_pEdit;
     bool m_bSelected;
     CFX_FloatRect m_rcListItem;
   };
@@ -165,4 +165,4 @@ class CFX_ListCtrl {
   bool m_bMultiple;
 };
 
-#endif  // FPDFSDK_FXEDIT_FXET_LIST_H_
+#endif  // FPDFSDK_PDFWINDOW_CPWL_LIST_IMPL_H_