Move code from fpdfsdk/include to the sub directories.

This CL moves the fxedit, jsapi and fpdfxfa code out of fpdfsdk/include to the
various sub-include directories.

Review URL: https://codereview.chromium.org/1863163002

9 files changed, 1787 insertions, 9 deletions

diff --git a/fpdfsdk/fxedit/fxet_ap.cpp b/fpdfsdk/fxedit/fxet_ap.cpp
index 48c6876a74..cafce2eb04 100644
--- a/fpdfsdk/fxedit/fxet_ap.cpp
+++ b/fpdfsdk/fxedit/fxet_ap.cpp
@@ -8,8 +8,8 @@
 #include "core/fpdfapi/fpdf_parser/include/fpdf_parser_decode.h"
 #include "core/fpdfdoc/include/cpvt_word.h"
 #include "core/fpdfdoc/include/ipvt_fontmap.h"
-#include "fpdfsdk/include/fxedit/fx_edit.h"
-#include "fpdfsdk/include/fxedit/fxet_edit.h"
+#include "fpdfsdk/fxedit/include/fx_edit.h"
+#include "fpdfsdk/fxedit/include/fxet_edit.h"
 
 CFX_ByteString GetPDFWordString(IPVT_FontMap* pFontMap,
                                 int32_t nFontIndex,
diff --git a/fpdfsdk/fxedit/fxet_edit.cpp b/fpdfsdk/fxedit/fxet_edit.cpp
index f275248ac2..07a9d864d7 100644
--- a/fpdfsdk/fxedit/fxet_edit.cpp
+++ b/fpdfsdk/fxedit/fxet_edit.cpp
@@ -4,7 +4,7 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "fpdfsdk/include/fxedit/fxet_edit.h"
+#include "fpdfsdk/fxedit/include/fxet_edit.h"
 
 #include <algorithm>
 
diff --git a/fpdfsdk/fxedit/fxet_list.cpp b/fpdfsdk/fxedit/fxet_list.cpp
index f3db38612c..af6e8588f6 100644
--- a/fpdfsdk/fxedit/fxet_list.cpp
+++ b/fpdfsdk/fxedit/fxet_list.cpp
@@ -4,10 +4,10 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-#include "fpdfsdk/include/fxedit/fxet_list.h"
+#include "fpdfsdk/fxedit/include/fxet_list.h"
 
 #include "core/fpdfdoc/include/cpvt_word.h"
-#include "fpdfsdk/include/fxedit/fxet_edit.h"
+#include "fpdfsdk/fxedit/include/fxet_edit.h"
 
 CFX_ListItem::CFX_ListItem()
     : m_pEdit(NULL),
diff --git a/fpdfsdk/fxedit/fxet_module.cpp b/fpdfsdk/fxedit/fxet_module.cpp
index 330b72bc8b..99fd68e397 100644
--- a/fpdfsdk/fxedit/fxet_module.cpp
+++ b/fpdfsdk/fxedit/fxet_module.cpp
@@ -5,8 +5,8 @@
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/fpdfdoc/include/cpdf_variabletext.h"
-#include "fpdfsdk/include/fxedit/fxet_edit.h"
-#include "fpdfsdk/include/fxedit/fxet_list.h"
+#include "fpdfsdk/fxedit/include/fxet_edit.h"
+#include "fpdfsdk/fxedit/include/fxet_list.h"
 
 IFX_Edit* IFX_Edit::NewEdit() {
   return new CFX_Edit(new CPDF_VariableText());
diff --git a/fpdfsdk/fxedit/fxet_pageobjs.cpp b/fpdfsdk/fxedit/fxet_pageobjs.cpp
index 41252277ac..cbe6fabcb6 100644
--- a/fpdfsdk/fxedit/fxet_pageobjs.cpp
+++ b/fpdfsdk/fxedit/fxet_pageobjs.cpp
@@ -13,9 +13,9 @@
 #include "core/fpdfdoc/include/cpvt_word.h"
 #include "core/fpdfdoc/include/ipvt_fontmap.h"
 #include "core/fxge/include/fx_ge.h"
+#include "fpdfsdk/fxedit/include/fx_edit.h"
+#include "fpdfsdk/fxedit/include/fxet_edit.h"
 #include "fpdfsdk/include/fx_systemhandler.h"
-#include "fpdfsdk/include/fxedit/fx_edit.h"
-#include "fpdfsdk/include/fxedit/fxet_edit.h"
 
 #define FX_EDIT_UNDERLINEHALFWIDTH 0.5f
 #define FX_EDIT_CROSSOUTHALFWIDTH 0.5f
diff --git a/fpdfsdk/fxedit/include/DEPS b/fpdfsdk/fxedit/include/DEPS
new file mode 100644
index 0000000000..db9a09c342
--- /dev/null
+++ b/fpdfsdk/fxedit/include/DEPS
@@ -0,0 +1,3 @@
+include_rules = [
+  '+core/fpdfdoc/include',
+]
diff --git a/fpdfsdk/fxedit/include/fx_edit.h b/fpdfsdk/fxedit/include/fx_edit.h
new file mode 100644
index 0000000000..4220c0bd01
--- /dev/null
+++ b/fpdfsdk/fxedit/include/fx_edit.h
@@ -0,0 +1,629 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef FPDFSDK_FXEDIT_INCLUDE_FX_EDIT_H_
+#define FPDFSDK_FXEDIT_INCLUDE_FX_EDIT_H_
+
+#include "core/fpdfdoc/include/cpdf_variabletext.h"
+#include "core/fxcrt/include/fx_basic.h"
+#include "core/fxge/include/fx_dib.h"
+
+class CPDF_Font;
+class CPDF_PageObjectHolder;
+class CPDF_TextObject;
+class CFX_FloatPoint;
+class CFX_Matrix;
+class CFX_RenderDevice;
+class IFX_Edit;
+class IPVT_FontMap;
+class IFX_Edit_Iterator;
+class IFX_Edit_Notify;
+class IFX_Edit_UndoItem;
+class IFX_List;
+class IFX_List_Notify;
+class IFX_SystemHandler;
+
+struct CPVT_Line;
+struct CPVT_SecProps;
+struct CPVT_Section;
+struct CPVT_Word;
+struct CPVT_WordPlace;
+struct CPVT_WordProps;
+struct CPVT_WordRange;
+
+#define PVTWORD_STYLE_NORMAL 0x0000L
+#define PVTWORD_STYLE_HIGHLIGHT 0x0001L
+#define PVTWORD_STYLE_UNDERLINE 0x0002L
+#define PVTWORD_STYLE_CROSSOUT 0x0004L
+#define PVTWORD_STYLE_SQUIGGLY 0x0008L
+#define PVTWORD_STYLE_DUALCROSSOUT 0x0010L
+#define PVTWORD_STYLE_BOLD 0x0020L
+#define PVTWORD_STYLE_ITALIC 0x0040L
+
+#define FX_EDIT_ISLATINWORD(u)                  \
+  (u == 0x2D || (u <= 0x005A && u >= 0x0041) || \
+   (u <= 0x007A && u >= 0x0061) || (u <= 0x02AF && u >= 0x00C0))
+
+#ifndef DEFAULT_CHARSET
+#define DEFAULT_CHARSET 1
+#endif
+
+class IFX_Edit_Notify {
+ public:
+  virtual ~IFX_Edit_Notify() {}
+  // set the horizontal scrollbar information.
+  virtual void IOnSetScrollInfoX(FX_FLOAT fPlateMin,
+                                 FX_FLOAT fPlateMax,
+                                 FX_FLOAT fContentMin,
+                                 FX_FLOAT fContentMax,
+                                 FX_FLOAT fSmallStep,
+                                 FX_FLOAT fBigStep) = 0;
+  // set the vertical scrollbar information.
+  virtual void IOnSetScrollInfoY(FX_FLOAT fPlateMin,
+                                 FX_FLOAT fPlateMax,
+                                 FX_FLOAT fContentMin,
+                                 FX_FLOAT fContentMax,
+                                 FX_FLOAT fSmallStep,
+                                 FX_FLOAT fBigStep) = 0;
+  // set the position of horizontal scrollbar.
+  virtual void IOnSetScrollPosX(FX_FLOAT fx) = 0;
+  // set the position of vertical scrollbar.
+  virtual void IOnSetScrollPosY(FX_FLOAT fy) = 0;
+  // set the caret information.
+  virtual void IOnSetCaret(FX_BOOL bVisible,
+                           const CFX_FloatPoint& ptHead,
+                           const CFX_FloatPoint& ptFoot,
+                           const CPVT_WordPlace& place) = 0;
+  // if the caret position is changed ,send the information of current postion
+  // to user.
+  virtual void IOnCaretChange(const CPVT_SecProps& secProps,
+                              const CPVT_WordProps& wordProps) = 0;
+  // if the text area is changed, send the information to user.
+  virtual void IOnContentChange(const CFX_FloatRect& rcContent) = 0;
+  // Invalidate the rectangle relative to the bounding box of edit.
+  virtual void IOnInvalidateRect(CFX_FloatRect* pRect) = 0;
+};
+
+class IFX_Edit_OprNotify {
+ public:
+  virtual ~IFX_Edit_OprNotify() {}
+
+  // OprType: 0
+  virtual void OnInsertWord(const CPVT_WordPlace& place,
+                            const CPVT_WordPlace& oldplace) = 0;
+  // OprType: 1
+  virtual void OnInsertReturn(const CPVT_WordPlace& place,
+                              const CPVT_WordPlace& oldplace) = 0;
+  // OprType: 2
+  virtual void OnBackSpace(const CPVT_WordPlace& place,
+                           const CPVT_WordPlace& oldplace) = 0;
+  // OprType: 3
+  virtual void OnDelete(const CPVT_WordPlace& place,
+                        const CPVT_WordPlace& oldplace) = 0;
+  // OprType: 4
+  virtual void OnClear(const CPVT_WordPlace& place,
+                       const CPVT_WordPlace& oldplace) = 0;
+  // OprType: 5
+  virtual void OnInsertText(const CPVT_WordPlace& place,
+                            const CPVT_WordPlace& oldplace) = 0;
+  // OprType: 6
+  virtual void OnSetText(const CPVT_WordPlace& place,
+                         const CPVT_WordPlace& oldplace) = 0;
+  //
+  virtual void OnAddUndo(IFX_Edit_UndoItem* pUndoItem) = 0;
+};
+
+class IFX_Edit_Iterator {
+ public:
+  virtual ~IFX_Edit_Iterator() {}
+
+ public:
+  // move the current position to the next word.
+  virtual FX_BOOL NextWord() = 0;
+  // move the current position to the next line.
+  virtual FX_BOOL NextLine() = 0;
+  // move the current position to the next section.
+  virtual FX_BOOL NextSection() = 0;
+
+  // move the current position to the previous word.
+  virtual FX_BOOL PrevWord() = 0;
+  // move the current position to the previous line.
+  virtual FX_BOOL PrevLine() = 0;
+  // move the current position to the previous section.
+  virtual FX_BOOL PrevSection() = 0;
+
+  // get the information of the current word.
+  virtual FX_BOOL GetWord(CPVT_Word& word) const = 0;
+  // get the information of the current line.
+  virtual FX_BOOL GetLine(CPVT_Line& line) const = 0;
+  // get the information of the current section.
+  virtual FX_BOOL GetSection(CPVT_Section& section) const = 0;
+  // set the current position.
+  virtual void SetAt(int32_t nWordIndex) = 0;
+  // set the current position.
+  virtual void SetAt(const CPVT_WordPlace& place) = 0;
+  // get the current position.
+  virtual const CPVT_WordPlace& GetAt() const = 0;
+
+  // get the edit which this iterator belongs to
+  virtual IFX_Edit* GetEdit() const = 0;
+};
+
+class IFX_Edit_UndoItem {
+ public:
+  virtual ~IFX_Edit_UndoItem() {}
+
+  virtual void Undo() = 0;
+  virtual void Redo() = 0;
+  virtual CFX_WideString GetUndoTitle() = 0;
+};
+
+class IFX_Edit {
+ public:
+  static IFX_Edit* NewEdit();
+  static void DelEdit(IFX_Edit* pEdit);
+
+  // set a IPVT_FontMap pointer implemented by user.
+  virtual void SetFontMap(IPVT_FontMap* pFontMap) = 0;
+
+  // if user don't like to use FontMap, implement VTProvider and set it
+  // directly.
+  virtual void SetVTProvider(CPDF_VariableText::Provider* pProvider) = 0;
+
+  // set a IFX_Edit_Notify pointer implemented by user.
+  virtual void SetNotify(IFX_Edit_Notify* pNotify) = 0;
+  virtual void SetOprNotify(IFX_Edit_OprNotify* pOprNotify) = 0;
+
+  // get a pointer allocated by CPDF_Edit, by this pointer, user can iterate the
+  // contents of edit, but don't need to release.
+  virtual IFX_Edit_Iterator* GetIterator() = 0;
+
+  // get a VT pointer relative to this edit.
+  virtual CPDF_VariableText* GetVariableText() = 0;
+
+  // get the IPVT_FontMap pointer set by user.
+  virtual IPVT_FontMap* GetFontMap() = 0;
+
+  // initialize the edit.
+  virtual void Initialize() = 0;
+
+  // set the bounding box of the text area.
+  virtual void SetPlateRect(const CFX_FloatRect& rect,
+                            FX_BOOL bPaint = TRUE) = 0;
+
+  // set the scroll origin
+  virtual void SetScrollPos(const CFX_FloatPoint& point) = 0;
+
+  // set the horizontal text alignment in text box, nFormat (0:left 1:middle
+  // 2:right).
+  virtual void SetAlignmentH(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) = 0;
+
+  // set the vertical text alignment in text box, nFormat (0:top 1:center
+  // 2:bottom).
+  virtual void SetAlignmentV(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) = 0;
+
+  // if the text is shown in secret , set a character for substitute.
+  virtual void SetPasswordChar(uint16_t wSubWord = '*',
+                               FX_BOOL bPaint = TRUE) = 0;
+
+  // set the maximal count of words of the text.
+  virtual void SetLimitChar(int32_t nLimitChar = 0, FX_BOOL bPaint = TRUE) = 0;
+
+  // if set the count of charArray , then all words is shown in equal space.
+  virtual void SetCharArray(int32_t nCharArray = 0, FX_BOOL bPaint = TRUE) = 0;
+
+  // set the space of two characters.
+  virtual void SetCharSpace(FX_FLOAT fCharSpace = 0.0f,
+                            FX_BOOL bPaint = TRUE) = 0;
+
+  // set the horizontal scale of all characters.
+  virtual void SetHorzScale(int32_t nHorzScale = 100,
+                            FX_BOOL bPaint = TRUE) = 0;
+
+  // set the leading of all lines
+  virtual void SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE) = 0;
+
+  // if set, CRLF is allowed.
+  virtual void SetMultiLine(FX_BOOL bMultiLine = TRUE,
+                            FX_BOOL bPaint = TRUE) = 0;
+
+  // if set, all words auto fit the width of the bounding box.
+  virtual void SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0;
+
+  // if set, a font size is calculated to full fit the bounding box.
+  virtual void SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0;
+
+  // is set, the text is allowed to scroll.
+  virtual void SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) = 0;
+
+  // set the font size of all words.
+  virtual void SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE) = 0;
+
+  // the text is allowed to auto-scroll, allow the text overflow?
+  virtual void SetTextOverflow(FX_BOOL bAllowed = FALSE,
+                               FX_BOOL bPaint = TRUE) = 0;
+
+  // query if the edit is richedit.
+  virtual FX_BOOL IsRichText() const = 0;
+
+  // set the edit is richedit.
+  virtual void SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE) = 0;
+
+  // set the fontsize of selected text.
+  virtual FX_BOOL SetRichFontSize(FX_FLOAT fFontSize) = 0;
+
+  // set the fontindex of selected text, user can change the font of selected
+  // text.
+  virtual FX_BOOL SetRichFontIndex(int32_t nFontIndex) = 0;
+
+  // set the textcolor of selected text.
+  virtual FX_BOOL SetRichTextColor(FX_COLORREF dwColor) = 0;
+
+  // set the text script type of selected text. (0:normal 1:superscript
+  // 2:subscript)
+  virtual FX_BOOL SetRichTextScript(
+      CPDF_VariableText::ScriptType nScriptType) = 0;
+
+  // set the bold font style of selected text.
+  virtual FX_BOOL SetRichTextBold(FX_BOOL bBold = TRUE) = 0;
+
+  // set the italic font style of selected text.
+  virtual FX_BOOL SetRichTextItalic(FX_BOOL bItalic = TRUE) = 0;
+
+  // set the underline style of selected text.
+  virtual FX_BOOL SetRichTextUnderline(FX_BOOL bUnderline = TRUE) = 0;
+
+  // set the crossout style of selected text.
+  virtual FX_BOOL SetRichTextCrossout(FX_BOOL bCrossout = TRUE) = 0;
+
+  // set the charspace of selected text, in user coordinate.
+  virtual FX_BOOL SetRichTextCharSpace(FX_FLOAT fCharSpace) = 0;
+
+  // set the horizontal scale of selected text, default value is 100.
+  virtual FX_BOOL SetRichTextHorzScale(int32_t nHorzScale = 100) = 0;
+
+  // set the leading of selected section, in user coordinate.
+  virtual FX_BOOL SetRichTextLineLeading(FX_FLOAT fLineLeading) = 0;
+
+  // set the indent of selected section, in user coordinate.
+  virtual FX_BOOL SetRichTextLineIndent(FX_FLOAT fLineIndent) = 0;
+
+  // set the alignment of selected section, nAlignment(0:left 1:middle 2:right)
+  virtual FX_BOOL SetRichTextAlignment(int32_t nAlignment) = 0;
+
+  // set the selected range of text.
+  // if nStartChar == 0 and nEndChar == -1, select all the text.
+  virtual void SetSel(int32_t nStartChar, int32_t nEndChar) = 0;
+
+  // get the selected range of text.
+  virtual void GetSel(int32_t& nStartChar, int32_t& nEndChar) const = 0;
+
+  // select all the text.
+  virtual void SelectAll() = 0;
+
+  // set text is not selected.
+  virtual void SelectNone() = 0;
+
+  // get the caret position.
+  virtual int32_t GetCaret() const = 0;
+  virtual CPVT_WordPlace GetCaretWordPlace() const = 0;
+
+  // get the string of selected text.
+  virtual CFX_WideString GetSelText() const = 0;
+
+  // get the text conent
+  virtual CFX_WideString GetText() const = 0;
+
+  // query if any text is selected.
+  virtual FX_BOOL IsSelected() const = 0;
+
+  // get the scroll origin
+  virtual CFX_FloatPoint GetScrollPos() const = 0;
+
+  // get the bounding box of the text area.
+  virtual CFX_FloatRect GetPlateRect() const = 0;
+
+  // get the fact area of the text.
+  virtual CFX_FloatRect GetContentRect() const = 0;
+
+  // get the visible word range
+  virtual CPVT_WordRange GetVisibleWordRange() const = 0;
+
+  // get the whole word range
+  virtual CPVT_WordRange GetWholeWordRange() const = 0;
+
+  // get the word range of select text
+  virtual CPVT_WordRange GetSelectWordRange() const = 0;
+
+  // send the mousedown message to edit for response.
+  // if Shift key is hold, bShift is TRUE, is Ctrl key is hold, bCtrl is TRUE.
+  virtual void OnMouseDown(const CFX_FloatPoint& point,
+                           FX_BOOL bShift,
+                           FX_BOOL bCtrl) = 0;
+
+  // send the mousemove message to edit when mouse down is TRUE.
+  virtual void OnMouseMove(const CFX_FloatPoint& point,
+                           FX_BOOL bShift,
+                           FX_BOOL bCtrl) = 0;
+
+  // send the UP key message to edit.
+  virtual void OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+
+  // send the DOWN key message to edit.
+  virtual void OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+
+  // send the LEFT key message to edit.
+  virtual void OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+
+  // send the RIGHT key message to edit.
+  virtual void OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+
+  // send the HOME key message to edit.
+  virtual void OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+
+  // send the END key message to edit.
+  virtual void OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+
+  // put text into edit.
+  virtual void SetText(const FX_WCHAR* text,
+                       int32_t charset = DEFAULT_CHARSET,
+                       const CPVT_SecProps* pSecProps = NULL,
+                       const CPVT_WordProps* pWordProps = NULL) = 0;
+
+  // insert a word into the edit.
+  virtual FX_BOOL InsertWord(uint16_t word,
+                             int32_t charset = DEFAULT_CHARSET,
+                             const CPVT_WordProps* pWordProps = NULL) = 0;
+
+  // insert a return into the edit.
+  virtual FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps = NULL,
+                               const CPVT_WordProps* pWordProps = NULL) = 0;
+
+  // insert text into the edit.
+  virtual FX_BOOL InsertText(const FX_WCHAR* text,
+                             int32_t charset = DEFAULT_CHARSET,
+                             const CPVT_SecProps* pSecProps = NULL,
+                             const CPVT_WordProps* pWordProps = NULL) = 0;
+
+  // do backspace operation.
+  virtual FX_BOOL Backspace() = 0;
+
+  // do delete operation.
+  virtual FX_BOOL Delete() = 0;
+
+  // delete the selected text.
+  virtual FX_BOOL Clear() = 0;
+
+  // do Redo operation.
+  virtual FX_BOOL Redo() = 0;
+
+  // do Undo operation.
+  virtual FX_BOOL Undo() = 0;
+
+  // move caret
+  virtual void SetCaret(int32_t nPos) = 0;
+
+  // arrange all words over again
+  virtual void Paint() = 0;
+
+  // allow to refresh screen?
+  virtual void EnableRefresh(FX_BOOL bRefresh) = 0;
+
+  virtual void RefreshWordRange(const CPVT_WordRange& wr) = 0;
+
+  // allow undo/redo?
+  virtual void EnableUndo(FX_BOOL bUndo) = 0;
+
+  // allow notify?
+  virtual void EnableNotify(FX_BOOL bNotify) = 0;
+
+  // allow opr notify?
+  virtual void EnableOprNotify(FX_BOOL bNotify) = 0;
+
+  // map word place to word index.
+  virtual int32_t WordPlaceToWordIndex(const CPVT_WordPlace& place) const = 0;
+  // map word index to word place.
+  virtual CPVT_WordPlace WordIndexToWordPlace(int32_t index) const = 0;
+
+  // get the beginning position of a line
+  virtual CPVT_WordPlace GetLineBeginPlace(
+      const CPVT_WordPlace& place) const = 0;
+
+  // get the ending position of a line
+  virtual CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace& place) const = 0;
+
+  // get the beginning position of a section
+  virtual CPVT_WordPlace GetSectionBeginPlace(
+      const CPVT_WordPlace& place) const = 0;
+
+  // get the ending position of a section
+  virtual CPVT_WordPlace GetSectionEndPlace(
+      const CPVT_WordPlace& place) const = 0;
+
+  // search a wordplace form point
+  virtual CPVT_WordPlace SearchWordPlace(const CFX_FloatPoint& point) const = 0;
+
+  // get the font size of non_rich text or default font size of richtext.
+  virtual FX_FLOAT GetFontSize() const = 0;
+
+  // get the mask character.
+  virtual uint16_t GetPasswordChar() const = 0;
+
+  // get the count of charArray
+  virtual int32_t GetCharArray() const = 0;
+
+  // get the horizontal scale of all characters
+  virtual int32_t GetHorzScale() const = 0;
+
+  // get the space of two characters
+  virtual FX_FLOAT GetCharSpace() const = 0;
+
+  // get the latin words of specified range
+  virtual CFX_WideString GetRangeText(const CPVT_WordRange& range) const = 0;
+
+  // is the text full in bounding box
+  virtual FX_BOOL IsTextFull() const = 0;
+  virtual FX_BOOL CanUndo() const = 0;
+  virtual FX_BOOL CanRedo() const = 0;
+
+  // if the content is changed after settext?
+  virtual FX_BOOL IsModified() const = 0;
+
+  // get the total words in edit
+  virtual int32_t GetTotalWords() const = 0;
+
+  virtual void AddUndoItem(IFX_Edit_UndoItem* pUndoItem) = 0;
+
+  static CFX_ByteString GetEditAppearanceStream(
+      IFX_Edit* pEdit,
+      const CFX_FloatPoint& ptOffset,
+      const CPVT_WordRange* pRange = NULL,
+      FX_BOOL bContinuous = TRUE,
+      uint16_t SubWord = 0);
+  static CFX_ByteString GetSelectAppearanceStream(
+      IFX_Edit* pEdit,
+      const CFX_FloatPoint& ptOffset,
+      const CPVT_WordRange* pRange = NULL);
+  static void DrawEdit(CFX_RenderDevice* pDevice,
+                       CFX_Matrix* pUser2Device,
+                       IFX_Edit* pEdit,
+                       FX_COLORREF crTextFill,
+                       FX_COLORREF crTextStroke,
+                       const CFX_FloatRect& rcClip,
+                       const CFX_FloatPoint& ptOffset,
+                       const CPVT_WordRange* pRange,
+                       IFX_SystemHandler* pSystemHandler,
+                       void* pFFLData);
+  static void DrawUnderline(CFX_RenderDevice* pDevice,
+                            CFX_Matrix* pUser2Device,
+                            IFX_Edit* pEdit,
+                            FX_COLORREF color,
+                            const CFX_FloatRect& rcClip,
+                            const CFX_FloatPoint& ptOffset,
+                            const CPVT_WordRange* pRange);
+  static void DrawRichEdit(CFX_RenderDevice* pDevice,
+                           CFX_Matrix* pUser2Device,
+                           IFX_Edit* pEdit,
+                           const CFX_FloatRect& rcClip,
+                           const CFX_FloatPoint& ptOffset,
+                           const CPVT_WordRange* pRange);
+  static void GeneratePageObjects(
+      CPDF_PageObjectHolder* pObjectHolder,
+      IFX_Edit* pEdit,
+      const CFX_FloatPoint& ptOffset,
+      const CPVT_WordRange* pRange,
+      FX_COLORREF crText,
+      CFX_ArrayTemplate<CPDF_TextObject*>& ObjArray);
+  static void GenerateRichPageObjects(
+      CPDF_PageObjectHolder* pObjectHolder,
+      IFX_Edit* pEdit,
+      const CFX_FloatPoint& ptOffset,
+      const CPVT_WordRange* pRange,
+      CFX_ArrayTemplate<CPDF_TextObject*>& ObjArray);
+  static void GenerateUnderlineObjects(CPDF_PageObjectHolder* pObjectHolder,
+                                       IFX_Edit* pEdit,
+                                       const CFX_FloatPoint& ptOffset,
+                                       const CPVT_WordRange* pRange,
+                                       FX_COLORREF color);
+
+ protected:
+  virtual ~IFX_Edit() {}
+};
+
+class IFX_List_Notify {
+ public:
+  // set the horizontal scrollbar information.
+  virtual void IOnSetScrollInfoX(FX_FLOAT fPlateMin,
+                                 FX_FLOAT fPlateMax,
+                                 FX_FLOAT fContentMin,
+                                 FX_FLOAT fContentMax,
+                                 FX_FLOAT fSmallStep,
+                                 FX_FLOAT fBigStep) = 0;
+  // set the vertical scrollbar information.
+  virtual void IOnSetScrollInfoY(FX_FLOAT fPlateMin,
+                                 FX_FLOAT fPlateMax,
+                                 FX_FLOAT fContentMin,
+                                 FX_FLOAT fContentMax,
+                                 FX_FLOAT fSmallStep,
+                                 FX_FLOAT fBigStep) = 0;
+  // set the position of horizontal scrollbar.
+  virtual void IOnSetScrollPosX(FX_FLOAT fx) = 0;
+  // set the position of vertical scrollbar.
+  virtual void IOnSetScrollPosY(FX_FLOAT fy) = 0;
+  // Invalidate the rectangle relative to the bounding box of edit.
+  virtual void IOnInvalidateRect(CFX_FloatRect* pRect) = 0;
+
+ protected:
+  virtual ~IFX_List_Notify() {}
+};
+
+class IFX_List {
+ public:
+  static IFX_List* NewList();
+  static void DelList(IFX_List* pList);
+
+  virtual void SetFontMap(IPVT_FontMap* pFontMap) = 0;
+  virtual void SetNotify(IFX_List_Notify* pNotify) = 0;
+
+  virtual void SetPlateRect(const CFX_FloatRect& rect) = 0;
+  virtual void SetFontSize(FX_FLOAT fFontSize) = 0;
+
+  virtual CFX_FloatRect GetPlateRect() const = 0;
+  virtual CFX_FloatRect GetContentRect() const = 0;
+
+  virtual FX_FLOAT GetFontSize() const = 0;
+  virtual IFX_Edit* GetItemEdit(int32_t nIndex) const = 0;
+  virtual int32_t GetCount() const = 0;
+  virtual FX_BOOL IsItemSelected(int32_t nIndex) const = 0;
+  virtual FX_FLOAT GetFirstHeight() const = 0;
+
+  virtual void SetMultipleSel(FX_BOOL bMultiple) = 0;
+  virtual FX_BOOL IsMultipleSel() const = 0;
+  virtual FX_BOOL IsValid(int32_t nItemIndex) const = 0;
+  virtual int32_t FindNext(int32_t nIndex, FX_WCHAR nChar) const = 0;
+
+  virtual void SetScrollPos(const CFX_FloatPoint& point) = 0;
+  virtual void ScrollToListItem(int32_t nItemIndex) = 0;
+  virtual CFX_FloatRect GetItemRect(int32_t nIndex) const = 0;
+  virtual int32_t GetCaret() const = 0;
+  virtual int32_t GetSelect() const = 0;
+  virtual int32_t GetTopItem() const = 0;
+  virtual int32_t GetItemIndex(const CFX_FloatPoint& point) const = 0;
+  virtual int32_t GetFirstSelected() const = 0;
+
+  virtual void AddString(const FX_WCHAR* str) = 0;
+  virtual void SetTopItem(int32_t nIndex) = 0;
+  virtual void Select(int32_t nItemIndex) = 0;
+  virtual void SetCaret(int32_t nItemIndex) = 0;
+  virtual void Empty() = 0;
+  virtual void Cancel() = 0;
+  virtual CFX_WideString GetText() const = 0;
+
+  virtual void OnMouseDown(const CFX_FloatPoint& point,
+                           FX_BOOL bShift,
+                           FX_BOOL bCtrl) = 0;
+  virtual void OnMouseMove(const CFX_FloatPoint& point,
+                           FX_BOOL bShift,
+                           FX_BOOL bCtrl) = 0;
+  virtual void OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+  virtual void OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+  virtual void OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+  virtual void OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+  virtual void OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+  virtual void OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+  virtual void OnVK(int32_t nItemIndex, FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+  virtual FX_BOOL OnChar(uint16_t nChar, FX_BOOL bShift, FX_BOOL bCtrl) = 0;
+
+ protected:
+  virtual ~IFX_List() {}
+};
+
+CFX_ByteString GetPDFWordString(IPVT_FontMap* pFontMap,
+                                int32_t nFontIndex,
+                                uint16_t Word,
+                                uint16_t SubWord);
+
+#endif  // FPDFSDK_FXEDIT_INCLUDE_FX_EDIT_H_
diff --git a/fpdfsdk/fxedit/include/fxet_edit.h b/fpdfsdk/fxedit/include/fxet_edit.h
new file mode 100644
index 0000000000..4233b1d301
--- /dev/null
+++ b/fpdfsdk/fxedit/include/fxet_edit.h
@@ -0,0 +1,803 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef FPDFSDK_FXEDIT_INCLUDE_FXET_EDIT_H_
+#define FPDFSDK_FXEDIT_INCLUDE_FXET_EDIT_H_
+
+#include "core/fpdfdoc/include/cpvt_secprops.h"
+#include "core/fpdfdoc/include/cpvt_wordprops.h"
+#include "fpdfsdk/fxedit/include/fx_edit.h"
+
+class CFX_Edit;
+class CFX_Edit_Iterator;
+class CFX_Edit_Provider;
+
+#define FX_EDIT_IsFloatZero(f) (f < 0.0001 && f > -0.0001)
+#define FX_EDIT_IsFloatEqual(fa, fb) FX_EDIT_IsFloatZero(fa - fb)
+#define FX_EDIT_IsFloatBigger(fa, fb) (fa > fb && !FX_EDIT_IsFloatEqual(fa, fb))
+#define FX_EDIT_IsFloatSmaller(fa, fb) \
+  (fa < fb && !FX_EDIT_IsFloatEqual(fa, fb))
+
+enum REFRESH_PLAN_E { RP_ANALYSE, RP_NOANALYSE, RP_OPTIONAL };
+
+enum EDIT_PROPS_E {
+  EP_LINELEADING,
+  EP_LINEINDENT,
+  EP_ALIGNMENT,
+  EP_FONTINDEX,
+  EP_FONTSIZE,
+  EP_WORDCOLOR,
+  EP_SCRIPTTYPE,
+  EP_UNDERLINE,
+  EP_CROSSOUT,
+  EP_CHARSPACE,
+  EP_HORZSCALE,
+  EP_BOLD,
+  EP_ITALIC
+};
+
+struct CFX_Edit_LineRect {
+  CFX_Edit_LineRect(const CPVT_WordRange& wrLine, const CFX_FloatRect& rcLine)
+      : m_wrLine(wrLine), m_rcLine(rcLine) {}
+
+  FX_BOOL operator!=(const CFX_Edit_LineRect& linerect) const {
+    return FXSYS_memcmp(this, &linerect, sizeof(CFX_Edit_LineRect)) != 0;
+  }
+
+  FX_BOOL IsSameHeight(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(
+        (m_rcLine.top - m_rcLine.bottom) -
+        (linerect.m_rcLine.top - linerect.m_rcLine.bottom));
+  }
+
+  FX_BOOL IsSameTop(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.top - linerect.m_rcLine.top);
+  }
+
+  FX_BOOL IsSameLeft(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.left - linerect.m_rcLine.left);
+  }
+
+  FX_BOOL IsSameRight(const CFX_Edit_LineRect& linerect) const {
+    return FX_EDIT_IsFloatZero(m_rcLine.right - linerect.m_rcLine.right);
+  }
+
+  CPVT_WordRange m_wrLine;
+  CFX_FloatRect m_rcLine;
+};
+
+class CFX_Edit_LineRectArray {
+ public:
+  CFX_Edit_LineRectArray() {}
+
+  virtual ~CFX_Edit_LineRectArray() { Empty(); }
+
+  void Empty() {
+    for (int32_t i = 0, sz = m_LineRects.GetSize(); i < sz; i++)
+      delete m_LineRects.GetAt(i);
+
+    m_LineRects.RemoveAll();
+  }
+
+  void RemoveAll() { m_LineRects.RemoveAll(); }
+
+  void operator=(CFX_Edit_LineRectArray& rects) {
+    Empty();
+    for (int32_t i = 0, sz = rects.GetSize(); i < sz; i++)
+      m_LineRects.Add(rects.GetAt(i));
+
+    rects.RemoveAll();
+  }
+
+  void Add(const CPVT_WordRange& wrLine, const CFX_FloatRect& rcLine) {
+    m_LineRects.Add(new CFX_Edit_LineRect(wrLine, rcLine));
+  }
+
+  int32_t GetSize() const { return m_LineRects.GetSize(); }
+
+  CFX_Edit_LineRect* GetAt(int32_t nIndex) const {
+    if (nIndex < 0 || nIndex >= m_LineRects.GetSize())
+      return NULL;
+
+    return m_LineRects.GetAt(nIndex);
+  }
+
+  CFX_ArrayTemplate<CFX_Edit_LineRect*> m_LineRects;
+};
+
+class CFX_Edit_RectArray {
+ public:
+  CFX_Edit_RectArray() {}
+
+  virtual ~CFX_Edit_RectArray() { Empty(); }
+
+  void Empty() {
+    for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++)
+      delete m_Rects.GetAt(i);
+
+    m_Rects.RemoveAll();
+  }
+
+  void Add(const CFX_FloatRect& rect) {
+    // check for overlapped area
+    for (int32_t i = 0, sz = m_Rects.GetSize(); i < sz; i++) {
+      CFX_FloatRect* pRect = m_Rects.GetAt(i);
+      if (pRect && pRect->Contains(rect))
+        return;
+    }
+
+    m_Rects.Add(new CFX_FloatRect(rect));
+  }
+
+  int32_t GetSize() const { return m_Rects.GetSize(); }
+
+  CFX_FloatRect* GetAt(int32_t nIndex) const {
+    if (nIndex < 0 || nIndex >= m_Rects.GetSize())
+      return NULL;
+
+    return m_Rects.GetAt(nIndex);
+  }
+
+  CFX_ArrayTemplate<CFX_FloatRect*> m_Rects;
+};
+
+class CFX_Edit_Refresh {
+ public:
+  CFX_Edit_Refresh();
+  virtual ~CFX_Edit_Refresh();
+
+  void BeginRefresh();
+  void Push(const CPVT_WordRange& linerange, const CFX_FloatRect& rect);
+  void NoAnalyse();
+  void Analyse(int32_t nAlignment);
+  void AddRefresh(const CFX_FloatRect& rect);
+  const CFX_Edit_RectArray* GetRefreshRects() const;
+  void EndRefresh();
+
+ private:
+  CFX_Edit_LineRectArray m_NewLineRects;
+  CFX_Edit_LineRectArray m_OldLineRects;
+  CFX_Edit_RectArray m_RefreshRects;
+};
+
+class CFX_Edit_Select {
+ public:
+  CFX_Edit_Select() {}
+
+  CFX_Edit_Select(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    Set(begin, end);
+  }
+
+  explicit CFX_Edit_Select(const CPVT_WordRange& range) {
+    Set(range.BeginPos, range.EndPos);
+  }
+
+  CPVT_WordRange ConvertToWordRange() const {
+    return CPVT_WordRange(BeginPos, EndPos);
+  }
+
+  void Default() {
+    BeginPos.Default();
+    EndPos.Default();
+  }
+
+  void Set(const CPVT_WordPlace& begin, const CPVT_WordPlace& end) {
+    BeginPos = begin;
+    EndPos = end;
+  }
+
+  void SetBeginPos(const CPVT_WordPlace& begin) { BeginPos = begin; }
+
+  void SetEndPos(const CPVT_WordPlace& end) { EndPos = end; }
+
+  FX_BOOL IsExist() const { return BeginPos != EndPos; }
+
+  FX_BOOL operator!=(const CPVT_WordRange& wr) const {
+    return wr.BeginPos != BeginPos || wr.EndPos != EndPos;
+  }
+
+  CPVT_WordPlace BeginPos, EndPos;
+};
+
+class CFX_Edit_Undo {
+ public:
+  explicit CFX_Edit_Undo(int32_t nBufsize);
+  virtual ~CFX_Edit_Undo();
+
+  void Undo();
+  void Redo();
+
+  void AddItem(IFX_Edit_UndoItem* pItem);
+
+  FX_BOOL CanUndo() const;
+  FX_BOOL CanRedo() const;
+  FX_BOOL IsModified() const;
+  FX_BOOL IsWorking() const;
+
+  void Reset();
+
+  IFX_Edit_UndoItem* GetItem(int32_t nIndex);
+  int32_t GetItemCount() { return m_UndoItemStack.GetSize(); }
+  int32_t GetCurUndoPos() { return m_nCurUndoPos; }
+
+ private:
+  void SetBufSize(int32_t nSize) { m_nBufSize = nSize; }
+  int32_t GetBufSize() { return m_nBufSize; }
+
+  void RemoveHeads();
+  void RemoveTails();
+
+ private:
+  CFX_ArrayTemplate<IFX_Edit_UndoItem*> m_UndoItemStack;
+
+  int32_t m_nCurUndoPos;
+  int32_t m_nBufSize;
+  FX_BOOL m_bModified;
+  FX_BOOL m_bVirgin;
+  FX_BOOL m_bWorking;
+};
+
+class CFX_Edit_UndoItem : public IFX_Edit_UndoItem {
+ public:
+  CFX_Edit_UndoItem() : m_bFirst(TRUE), m_bLast(TRUE) {}
+  ~CFX_Edit_UndoItem() override {}
+
+  CFX_WideString GetUndoTitle() override { return L""; }
+
+  void SetFirst(FX_BOOL bFirst) { m_bFirst = bFirst; }
+  FX_BOOL IsFirst() { return m_bFirst; }
+  void SetLast(FX_BOOL bLast) { m_bLast = bLast; }
+  FX_BOOL IsLast() { return m_bLast; }
+
+ private:
+  FX_BOOL m_bFirst;
+  FX_BOOL m_bLast;
+};
+
+class CFX_Edit_GroupUndoItem : public IFX_Edit_UndoItem {
+ public:
+  explicit CFX_Edit_GroupUndoItem(const CFX_WideString& sTitle);
+  ~CFX_Edit_GroupUndoItem() override;
+
+  void Undo() override;
+  void Redo() override;
+  CFX_WideString GetUndoTitle() override;
+
+  void AddUndoItem(CFX_Edit_UndoItem* pUndoItem);
+  void UpdateItems();
+
+ private:
+  CFX_WideString m_sTitle;
+  CFX_ArrayTemplate<CFX_Edit_UndoItem*> m_Items;
+};
+
+class CFXEU_InsertWord : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_InsertWord(CFX_Edit* pEdit,
+                   const CPVT_WordPlace& wpOldPlace,
+                   const CPVT_WordPlace& wpNewPlace,
+                   uint16_t word,
+                   int32_t charset,
+                   const CPVT_WordProps* pWordProps);
+  ~CFXEU_InsertWord() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  uint16_t m_Word;
+  int32_t m_nCharset;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_InsertReturn : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_InsertReturn(CFX_Edit* pEdit,
+                     const CPVT_WordPlace& wpOldPlace,
+                     const CPVT_WordPlace& wpNewPlace,
+                     const CPVT_SecProps* pSecProps,
+                     const CPVT_WordProps* pWordProps);
+  ~CFXEU_InsertReturn() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_Backspace : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_Backspace(CFX_Edit* pEdit,
+                  const CPVT_WordPlace& wpOldPlace,
+                  const CPVT_WordPlace& wpNewPlace,
+                  uint16_t word,
+                  int32_t charset,
+                  const CPVT_SecProps& SecProps,
+                  const CPVT_WordProps& WordProps);
+  ~CFXEU_Backspace() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  uint16_t m_Word;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_Delete : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_Delete(CFX_Edit* pEdit,
+               const CPVT_WordPlace& wpOldPlace,
+               const CPVT_WordPlace& wpNewPlace,
+               uint16_t word,
+               int32_t charset,
+               const CPVT_SecProps& SecProps,
+               const CPVT_WordProps& WordProps,
+               FX_BOOL bSecEnd);
+  ~CFXEU_Delete() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  uint16_t m_Word;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+  FX_BOOL m_bSecEnd;
+};
+
+class CFXEU_Clear : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_Clear(CFX_Edit* pEdit,
+              const CPVT_WordRange& wrSel,
+              const CFX_WideString& swText);
+  ~CFXEU_Clear() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordRange m_wrSel;
+  CFX_WideString m_swText;
+};
+
+class CFXEU_ClearRich : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_ClearRich(CFX_Edit* pEdit,
+                  const CPVT_WordPlace& wpOldPlace,
+                  const CPVT_WordPlace& wpNewPlace,
+                  const CPVT_WordRange& wrSel,
+                  uint16_t word,
+                  int32_t charset,
+                  const CPVT_SecProps& SecProps,
+                  const CPVT_WordProps& WordProps);
+  ~CFXEU_ClearRich() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  CPVT_WordRange m_wrSel;
+  uint16_t m_Word;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_InsertText : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_InsertText(CFX_Edit* pEdit,
+                   const CPVT_WordPlace& wpOldPlace,
+                   const CPVT_WordPlace& wpNewPlace,
+                   const CFX_WideString& swText,
+                   int32_t charset,
+                   const CPVT_SecProps* pSecProps,
+                   const CPVT_WordProps* pWordProps);
+  ~CFXEU_InsertText() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+
+  CPVT_WordPlace m_wpOld;
+  CPVT_WordPlace m_wpNew;
+  CFX_WideString m_swText;
+  int32_t m_nCharset;
+  CPVT_SecProps m_SecProps;
+  CPVT_WordProps m_WordProps;
+};
+
+class CFXEU_SetSecProps : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_SetSecProps(CFX_Edit* pEdit,
+                    const CPVT_WordPlace& place,
+                    EDIT_PROPS_E ep,
+                    const CPVT_SecProps& oldsecprops,
+                    const CPVT_WordProps& oldwordprops,
+                    const CPVT_SecProps& newsecprops,
+                    const CPVT_WordProps& newwordprops,
+                    const CPVT_WordRange& range);
+  ~CFXEU_SetSecProps() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+  CPVT_WordPlace m_wpPlace;
+  CPVT_WordRange m_wrPlace;
+  EDIT_PROPS_E m_eProps;
+
+  CPVT_SecProps m_OldSecProps;
+  CPVT_SecProps m_NewSecProps;
+  CPVT_WordProps m_OldWordProps;
+  CPVT_WordProps m_NewWordProps;
+};
+
+class CFXEU_SetWordProps : public CFX_Edit_UndoItem {
+ public:
+  CFXEU_SetWordProps(CFX_Edit* pEdit,
+                     const CPVT_WordPlace& place,
+                     EDIT_PROPS_E ep,
+                     const CPVT_WordProps& oldprops,
+                     const CPVT_WordProps& newprops,
+                     const CPVT_WordRange& range);
+  ~CFXEU_SetWordProps() override;
+
+  // CFX_Edit_UndoItem
+  void Redo() override;
+  void Undo() override;
+
+ private:
+  CFX_Edit* m_pEdit;
+  CPVT_WordPlace m_wpPlace;
+  CPVT_WordRange m_wrPlace;
+  EDIT_PROPS_E m_eProps;
+
+  CPVT_WordProps m_OldWordProps;
+  CPVT_WordProps m_NewWordProps;
+};
+
+class CFX_Edit : public IFX_Edit {
+  friend class CFX_Edit_Iterator;
+  friend class CFXEU_InsertWord;
+  friend class CFXEU_InsertReturn;
+  friend class CFXEU_Backspace;
+  friend class CFXEU_Delete;
+  friend class CFXEU_Clear;
+  friend class CFXEU_ClearRich;
+  friend class CFXEU_SetSecProps;
+  friend class CFXEU_SetWordProps;
+  friend class CFXEU_InsertText;
+
+ public:
+  explicit CFX_Edit(CPDF_VariableText* pVT);
+  ~CFX_Edit() override;
+
+  // IFX_Edit
+  void SetFontMap(IPVT_FontMap* pFontMap) override;
+  void SetVTProvider(CPDF_VariableText::Provider* pProvider) override;
+  void SetNotify(IFX_Edit_Notify* pNotify) override;
+  void SetOprNotify(IFX_Edit_OprNotify* pOprNotify) override;
+  IFX_Edit_Iterator* GetIterator() override;
+  CPDF_VariableText* GetVariableText() override;
+  IPVT_FontMap* GetFontMap() override;
+  void Initialize() override;
+  void SetPlateRect(const CFX_FloatRect& rect, FX_BOOL bPaint = TRUE) override;
+  void SetScrollPos(const CFX_FloatPoint& point) override;
+  void SetAlignmentH(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) override;
+  void SetAlignmentV(int32_t nFormat = 0, FX_BOOL bPaint = TRUE) override;
+  void SetPasswordChar(uint16_t wSubWord = '*', FX_BOOL bPaint = TRUE) override;
+  void SetLimitChar(int32_t nLimitChar = 0, FX_BOOL bPaint = TRUE) override;
+  void SetCharArray(int32_t nCharArray = 0, FX_BOOL bPaint = TRUE) override;
+  void SetCharSpace(FX_FLOAT fCharSpace = 0.0f, FX_BOOL bPaint = TRUE) override;
+  void SetHorzScale(int32_t nHorzScale = 100, FX_BOOL bPaint = TRUE) override;
+  void SetLineLeading(FX_FLOAT fLineLeading, FX_BOOL bPaint = TRUE) override;
+  void SetMultiLine(FX_BOOL bMultiLine = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetAutoReturn(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetAutoFontSize(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetAutoScroll(FX_BOOL bAuto = TRUE, FX_BOOL bPaint = TRUE) override;
+  void SetFontSize(FX_FLOAT fFontSize, FX_BOOL bPaint = TRUE) override;
+  void SetTextOverflow(FX_BOOL bAllowed = FALSE,
+                       FX_BOOL bPaint = TRUE) override;
+  FX_BOOL IsRichText() const override;
+  void SetRichText(FX_BOOL bRichText = TRUE, FX_BOOL bPaint = TRUE) override;
+  FX_BOOL SetRichFontSize(FX_FLOAT fFontSize) override;
+  FX_BOOL SetRichFontIndex(int32_t nFontIndex) override;
+  FX_BOOL SetRichTextColor(FX_COLORREF dwColor) override;
+  FX_BOOL SetRichTextScript(CPDF_VariableText::ScriptType nScriptType) override;
+  FX_BOOL SetRichTextBold(FX_BOOL bBold = TRUE) override;
+  FX_BOOL SetRichTextItalic(FX_BOOL bItalic = TRUE) override;
+  FX_BOOL SetRichTextUnderline(FX_BOOL bUnderline = TRUE) override;
+  FX_BOOL SetRichTextCrossout(FX_BOOL bCrossout = TRUE) override;
+  FX_BOOL SetRichTextCharSpace(FX_FLOAT fCharSpace) override;
+  FX_BOOL SetRichTextHorzScale(int32_t nHorzScale = 100) override;
+  FX_BOOL SetRichTextLineLeading(FX_FLOAT fLineLeading) override;
+  FX_BOOL SetRichTextLineIndent(FX_FLOAT fLineIndent) override;
+  FX_BOOL SetRichTextAlignment(int32_t nAlignment) override;
+  void OnMouseDown(const CFX_FloatPoint& point,
+                   FX_BOOL bShift,
+                   FX_BOOL bCtrl) override;
+  void OnMouseMove(const CFX_FloatPoint& point,
+                   FX_BOOL bShift,
+                   FX_BOOL bCtrl) override;
+  void OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void SetText(const FX_WCHAR* text,
+               int32_t charset = DEFAULT_CHARSET,
+               const CPVT_SecProps* pSecProps = NULL,
+               const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL InsertWord(uint16_t word,
+                     int32_t charset = DEFAULT_CHARSET,
+                     const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps = NULL,
+                       const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL Backspace() override;
+  FX_BOOL Delete() override;
+  FX_BOOL Clear() override;
+  FX_BOOL InsertText(const FX_WCHAR* text,
+                     int32_t charset = DEFAULT_CHARSET,
+                     const CPVT_SecProps* pSecProps = NULL,
+                     const CPVT_WordProps* pWordProps = NULL) override;
+  FX_BOOL Redo() override;
+  FX_BOOL Undo() override;
+  int32_t WordPlaceToWordIndex(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace WordIndexToWordPlace(int32_t index) const override;
+  CPVT_WordPlace GetLineBeginPlace(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace GetLineEndPlace(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace GetSectionBeginPlace(
+      const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace GetSectionEndPlace(const CPVT_WordPlace& place) const override;
+  CPVT_WordPlace SearchWordPlace(const CFX_FloatPoint& point) const override;
+  int32_t GetCaret() const override;
+  CPVT_WordPlace GetCaretWordPlace() const override;
+  CFX_WideString GetSelText() const override;
+  CFX_WideString GetText() const override;
+  FX_FLOAT GetFontSize() const override;
+  uint16_t GetPasswordChar() const override;
+  CFX_FloatPoint GetScrollPos() const override;
+  int32_t GetCharArray() const override;
+  CFX_FloatRect GetPlateRect() const override;
+  CFX_FloatRect GetContentRect() const override;
+  CFX_WideString GetRangeText(const CPVT_WordRange& range) const override;
+  int32_t GetHorzScale() const override;
+  FX_FLOAT GetCharSpace() const override;
+  int32_t GetTotalWords() const override;
+  void SetSel(int32_t nStartChar, int32_t nEndChar) override;
+  void GetSel(int32_t& nStartChar, int32_t& nEndChar) const override;
+  void SelectAll() override;
+  void SelectNone() override;
+  FX_BOOL IsSelected() const override;
+  void Paint() override;
+  void EnableNotify(FX_BOOL bNotify) override;
+  void EnableRefresh(FX_BOOL bRefresh) override;
+  void RefreshWordRange(const CPVT_WordRange& wr) override;
+  void SetCaret(int32_t nPos) override;
+  CPVT_WordRange GetWholeWordRange() const override;
+  CPVT_WordRange GetSelectWordRange() const override;
+  void EnableUndo(FX_BOOL bUndo) override;
+  void EnableOprNotify(FX_BOOL bNotify) override;
+  FX_BOOL IsTextFull() const override;
+  FX_BOOL IsTextOverflow() const;
+  FX_BOOL CanUndo() const override;
+  FX_BOOL CanRedo() const override;
+  FX_BOOL IsModified() const override;
+  CPVT_WordRange GetVisibleWordRange() const override;
+  void AddUndoItem(IFX_Edit_UndoItem* pUndoItem) override;
+
+  FX_BOOL Empty();
+
+  CPVT_WordPlace DoInsertText(const CPVT_WordPlace& place,
+                              const FX_WCHAR* text,
+                              int32_t charset,
+                              const CPVT_SecProps* pSecProps,
+                              const CPVT_WordProps* pWordProps);
+  int32_t GetCharSetFromUnicode(uint16_t word, int32_t nOldCharset);
+
+  int32_t GetTotalLines() const;
+
+ private:
+  void SetSel(const CPVT_WordPlace& begin, const CPVT_WordPlace& end);
+
+  void RearrangeAll();
+  void RearrangePart(const CPVT_WordRange& range);
+  void ScrollToCaret();
+  void SetScrollInfo();
+  void SetScrollPosX(FX_FLOAT fx);
+  void SetScrollPosY(FX_FLOAT fy);
+  void SetScrollLimit();
+  void SetContentChanged();
+
+  void SetText(const FX_WCHAR* text,
+               int32_t charset,
+               const CPVT_SecProps* pSecProps,
+               const CPVT_WordProps* pWordProps,
+               FX_BOOL bAddUndo,
+               FX_BOOL bPaint);
+  FX_BOOL InsertWord(uint16_t word,
+                     int32_t charset,
+                     const CPVT_WordProps* pWordProps,
+                     FX_BOOL bAddUndo,
+                     FX_BOOL bPaint);
+  FX_BOOL InsertReturn(const CPVT_SecProps* pSecProps,
+                       const CPVT_WordProps* pWordProps,
+                       FX_BOOL bAddUndo,
+                       FX_BOOL bPaint);
+  FX_BOOL Backspace(FX_BOOL bAddUndo, FX_BOOL bPaint);
+  FX_BOOL Delete(FX_BOOL bAddUndo, FX_BOOL bPaint);
+  FX_BOOL Clear(FX_BOOL bAddUndo, FX_BOOL bPaint);
+  FX_BOOL InsertText(const FX_WCHAR* text,
+                     int32_t charset,
+                     const CPVT_SecProps* pSecProps,
+                     const CPVT_WordProps* pWordProps,
+                     FX_BOOL bAddUndo,
+                     FX_BOOL bPaint);
+  FX_BOOL SetRichTextProps(EDIT_PROPS_E eProps,
+                           const CPVT_SecProps* pSecProps,
+                           const CPVT_WordProps* pWordProps);
+  FX_BOOL SetSecProps(EDIT_PROPS_E eProps,
+                      const CPVT_WordPlace& place,
+                      const CPVT_SecProps* pSecProps,
+                      const CPVT_WordProps* pWordProps,
+                      const CPVT_WordRange& wr,
+                      FX_BOOL bAddUndo);
+  FX_BOOL SetWordProps(EDIT_PROPS_E eProps,
+                       const CPVT_WordPlace& place,
+                       const CPVT_WordProps* pWordProps,
+                       const CPVT_WordRange& wr,
+                       FX_BOOL bAddUndo);
+  void PaintSetProps(EDIT_PROPS_E eProps, const CPVT_WordRange& wr);
+  void PaintInsertText(const CPVT_WordPlace& wpOld,
+                       const CPVT_WordPlace& wpNew);
+
+  inline CFX_FloatPoint VTToEdit(const CFX_FloatPoint& point) const;
+  inline CFX_FloatPoint EditToVT(const CFX_FloatPoint& point) const;
+  inline CFX_FloatRect VTToEdit(const CFX_FloatRect& rect) const;
+  inline CFX_FloatRect EditToVT(const CFX_FloatRect& rect) const;
+
+  void Refresh(REFRESH_PLAN_E ePlan,
+               const CPVT_WordRange* pRange1 = NULL,
+               const CPVT_WordRange* pRange2 = NULL);
+  void RefreshPushLineRects(const CPVT_WordRange& wr);
+  void RefreshPushRandomRects(const CPVT_WordRange& wr);
+
+  void SetCaret(const CPVT_WordPlace& place);
+  void SetCaretInfo();
+  void SetCaretOrigin();
+  void SetCaretChange();
+
+  CPVT_WordRange GetLatinWordsRange(const CPVT_WordPlace& place) const;
+  CPVT_WordRange CombineWordRange(const CPVT_WordRange& wr1,
+                                  const CPVT_WordRange& wr2);
+
+  void BeginGroupUndo(const CFX_WideString& sTitle);
+  void EndGroupUndo();
+  void AddEditUndoItem(CFX_Edit_UndoItem* pEditUndoItem);
+
+  void SetPageInfo(const CPVT_WordPlace& place);
+  CPVT_WordPlace SearchPageEndPlace(const CPVT_WordPlace& wpPageBegin,
+                                    const CFX_FloatPoint& point) const;
+  FX_FLOAT GetLineTop(const CPVT_WordPlace& place) const;
+  FX_FLOAT GetLineBottom(const CPVT_WordPlace& place) const;
+
+ private:
+  CPDF_VariableText* m_pVT;
+  IFX_Edit_Notify* m_pNotify;
+  IFX_Edit_OprNotify* m_pOprNotify;
+  CFX_Edit_Provider* m_pVTProvide;
+
+  CPVT_WordPlace m_wpCaret;
+  CPVT_WordPlace m_wpOldCaret;
+  CFX_Edit_Select m_SelState;
+
+  CFX_FloatPoint m_ptScrollPos;
+  CFX_FloatPoint m_ptRefreshScrollPos;
+  FX_BOOL m_bEnableScroll;
+  IFX_Edit_Iterator* m_pIterator;
+  CFX_Edit_Refresh m_Refresh;
+  CFX_FloatPoint m_ptCaret;
+  CFX_Edit_Undo m_Undo;
+  int32_t m_nAlignment;
+  FX_BOOL m_bNotifyFlag;
+  FX_BOOL m_bEnableOverflow;
+  FX_BOOL m_bEnableRefresh;
+  CFX_FloatRect m_rcOldContent;
+  FX_BOOL m_bEnableUndo;
+  FX_BOOL m_bNotify;
+  FX_BOOL m_bOprNotify;
+  CFX_Edit_GroupUndoItem* m_pGroupUndoItem;
+};
+
+class CFX_Edit_Iterator : public IFX_Edit_Iterator {
+ public:
+  CFX_Edit_Iterator(CFX_Edit* pEdit, CPDF_VariableText::Iterator* pVTIterator);
+  ~CFX_Edit_Iterator() override;
+
+  // IFX_Edit_Iterator
+  FX_BOOL NextWord() override;
+  FX_BOOL NextLine() override;
+  FX_BOOL NextSection() override;
+  FX_BOOL PrevWord() override;
+  FX_BOOL PrevLine() override;
+  FX_BOOL PrevSection() override;
+  FX_BOOL GetWord(CPVT_Word& word) const override;
+  FX_BOOL GetLine(CPVT_Line& line) const override;
+  FX_BOOL GetSection(CPVT_Section& section) const override;
+  void SetAt(int32_t nWordIndex) override;
+  void SetAt(const CPVT_WordPlace& place) override;
+  const CPVT_WordPlace& GetAt() const override;
+  IFX_Edit* GetEdit() const override;
+
+ private:
+  CFX_Edit* m_pEdit;
+  CPDF_VariableText::Iterator* m_pVTIterator;
+};
+
+class CFX_Edit_Provider : public CPDF_VariableText::Provider {
+ public:
+  explicit CFX_Edit_Provider(IPVT_FontMap* pFontMap);
+  ~CFX_Edit_Provider() override;
+
+  IPVT_FontMap* GetFontMap();
+
+  // CPDF_VariableText::Provider:
+  int32_t GetCharWidth(int32_t nFontIndex,
+                       uint16_t word,
+                       int32_t nWordStyle) override;
+  int32_t GetTypeAscent(int32_t nFontIndex) override;
+  int32_t GetTypeDescent(int32_t nFontIndex) override;
+  int32_t GetWordFontIndex(uint16_t word,
+                           int32_t charset,
+                           int32_t nFontIndex) override;
+  int32_t GetDefaultFontIndex() override;
+  FX_BOOL IsLatinWord(uint16_t word) override;
+
+ private:
+  IPVT_FontMap* m_pFontMap;
+};
+
+#endif  // FPDFSDK_FXEDIT_INCLUDE_FXET_EDIT_H_
diff --git a/fpdfsdk/fxedit/include/fxet_list.h b/fpdfsdk/fxedit/include/fxet_list.h
new file mode 100644
index 0000000000..1f855b7747
--- /dev/null
+++ b/fpdfsdk/fxedit/include/fxet_list.h
@@ -0,0 +1,343 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef FPDFSDK_FXEDIT_INCLUDE_FXET_LIST_H_
+#define FPDFSDK_FXEDIT_INCLUDE_FXET_LIST_H_
+
+#include "fpdfsdk/fxedit/include/fx_edit.h"
+
+class IFX_Edit;
+
+class CLST_Size {
+ public:
+  CLST_Size() : x(0.0f), y(0.0f) {}
+
+  CLST_Size(FX_FLOAT other_x, FX_FLOAT other_y) {
+    x = other_x;
+    y = other_y;
+  }
+
+  void Default() {
+    x = 0.0f;
+    y = 0.0f;
+  }
+
+  FX_BOOL operator!=(const CLST_Size& size) const {
+    return FXSYS_memcmp(this, &size, sizeof(CLST_Size)) != 0;
+  }
+
+  FX_FLOAT x, y;
+};
+
+class CLST_Rect : public CFX_FloatRect {
+ public:
+  CLST_Rect() { left = top = right = bottom = 0.0f; }
+
+  CLST_Rect(FX_FLOAT other_left,
+            FX_FLOAT other_top,
+            FX_FLOAT other_right,
+            FX_FLOAT other_bottom) {
+    left = other_left;
+    top = other_top;
+    right = other_right;
+    bottom = other_bottom;
+  }
+
+  CLST_Rect(const CFX_FloatRect& rect) {
+    left = rect.left;
+    top = rect.top;
+    right = rect.right;
+    bottom = rect.bottom;
+  }
+
+  ~CLST_Rect() {}
+
+  void Default() { left = top = right = bottom = 0.0f; }
+
+  const CLST_Rect operator=(const CFX_FloatRect& rect) {
+    left = rect.left;
+    top = rect.top;
+    right = rect.right;
+    bottom = rect.bottom;
+
+    return *this;
+  }
+
+  bool operator==(const CLST_Rect& rect) const {
+    return FXSYS_memcmp(this, &rect, sizeof(CLST_Rect)) == 0;
+  }
+
+  bool operator!=(const CLST_Rect& rect) const { return !(*this == rect); }
+
+  FX_FLOAT Width() const { return right - left; }
+
+  FX_FLOAT Height() const {
+    if (top > bottom)
+      return top - bottom;
+    return bottom - top;
+  }
+
+  CFX_FloatPoint LeftTop() const { return CFX_FloatPoint(left, top); }
+
+  CFX_FloatPoint RightBottom() const { return CFX_FloatPoint(right, bottom); }
+
+  const CLST_Rect operator+=(const CFX_FloatPoint& point) {
+    left += point.x;
+    right += point.x;
+    top += point.y;
+    bottom += point.y;
+
+    return *this;
+  }
+
+  const CLST_Rect operator-=(const CFX_FloatPoint& point) {
+    left -= point.x;
+    right -= point.x;
+    top -= point.y;
+    bottom -= point.y;
+
+    return *this;
+  }
+
+  CLST_Rect operator+(const CFX_FloatPoint& point) const {
+    return CLST_Rect(left + point.x, top + point.y, right + point.x,
+                     bottom + point.y);
+  }
+
+  CLST_Rect operator-(const CFX_FloatPoint& point) const {
+    return CLST_Rect(left - point.x, top - point.y, right - point.x,
+                     bottom - point.y);
+  }
+};
+
+class CFX_ListItem {
+ public:
+  CFX_ListItem();
+  virtual ~CFX_ListItem();
+
+  void SetFontMap(IPVT_FontMap* pFontMap);
+  IFX_Edit_Iterator* GetIterator() const;
+  IFX_Edit* GetEdit() const;
+
+ public:
+  void SetRect(const CLST_Rect& rect);
+  void SetSelect(FX_BOOL bSelected);
+  void SetCaret(FX_BOOL bCaret);
+  void SetText(const FX_WCHAR* text);
+  void SetFontSize(FX_FLOAT fFontSize);
+  CFX_WideString GetText() const;
+
+  CLST_Rect GetRect() const;
+  FX_BOOL IsSelected() const;
+  FX_BOOL IsCaret() const;
+  FX_FLOAT GetItemHeight() const;
+  uint16_t GetFirstChar() const;
+
+ private:
+  IFX_Edit* m_pEdit;
+  FX_BOOL m_bSelected;
+  FX_BOOL m_bCaret;
+  CLST_Rect m_rcListItem;
+};
+
+class CFX_ListContainer {
+ public:
+  CFX_ListContainer()
+      : m_rcPlate(0.0f, 0.0f, 0.0f, 0.0f),
+        m_rcContent(0.0f, 0.0f, 0.0f, 0.0f) {}
+  virtual ~CFX_ListContainer() {}
+  virtual void SetPlateRect(const CFX_FloatRect& rect) { m_rcPlate = rect; }
+  CFX_FloatRect GetPlateRect() const { return m_rcPlate; }
+  void SetContentRect(const CLST_Rect& rect) { m_rcContent = rect; }
+  CLST_Rect GetContentRect() const { return m_rcContent; }
+  CFX_FloatPoint GetBTPoint() const {
+    return CFX_FloatPoint(m_rcPlate.left, m_rcPlate.top);
+  }
+  CFX_FloatPoint GetETPoint() const {
+    return CFX_FloatPoint(m_rcPlate.right, m_rcPlate.bottom);
+  }
+
+ public:
+  CFX_FloatPoint InnerToOuter(const CFX_FloatPoint& point) const {
+    return CFX_FloatPoint(point.x + GetBTPoint().x, GetBTPoint().y - point.y);
+  }
+  CFX_FloatPoint OuterToInner(const CFX_FloatPoint& point) const {
+    return CFX_FloatPoint(point.x - GetBTPoint().x, GetBTPoint().y - point.y);
+  }
+  CFX_FloatRect InnerToOuter(const CLST_Rect& rect) const {
+    CFX_FloatPoint ptLeftTop =
+        InnerToOuter(CFX_FloatPoint(rect.left, rect.top));
+    CFX_FloatPoint ptRightBottom =
+        InnerToOuter(CFX_FloatPoint(rect.right, rect.bottom));
+    return CFX_FloatRect(ptLeftTop.x, ptRightBottom.y, ptRightBottom.x,
+                         ptLeftTop.y);
+  }
+  CLST_Rect OuterToInner(const CFX_FloatRect& rect) const {
+    CFX_FloatPoint ptLeftTop =
+        OuterToInner(CFX_FloatPoint(rect.left, rect.top));
+    CFX_FloatPoint ptRightBottom =
+        OuterToInner(CFX_FloatPoint(rect.right, rect.bottom));
+    return CLST_Rect(ptLeftTop.x, ptLeftTop.y, ptRightBottom.x,
+                     ptRightBottom.y);
+  }
+
+ private:
+  CFX_FloatRect m_rcPlate;
+  CLST_Rect m_rcContent;  // positive forever!
+};
+
+template <class TYPE>
+class CLST_ArrayTemplate : public CFX_ArrayTemplate<TYPE> {
+ public:
+  FX_BOOL IsEmpty() { return CFX_ArrayTemplate<TYPE>::GetSize() <= 0; }
+  TYPE GetAt(int32_t nIndex) const {
+    if (nIndex >= 0 && nIndex < CFX_ArrayTemplate<TYPE>::GetSize())
+      return CFX_ArrayTemplate<TYPE>::GetAt(nIndex);
+    return NULL;
+  }
+  void RemoveAt(int32_t nIndex) {
+    if (nIndex >= 0 && nIndex < CFX_ArrayTemplate<TYPE>::GetSize())
+      CFX_ArrayTemplate<TYPE>::RemoveAt(nIndex);
+  }
+};
+
+class CFX_List : protected CFX_ListContainer, public IFX_List {
+ public:
+  CFX_List();
+  ~CFX_List() override;
+
+  // IFX_List:
+  void SetFontMap(IPVT_FontMap* pFontMap) override;
+  void SetFontSize(FX_FLOAT fFontSize) override;
+  CFX_FloatRect GetPlateRect() const override;
+  CFX_FloatRect GetContentRect() const override;
+  FX_FLOAT GetFontSize() const override;
+  IFX_Edit* GetItemEdit(int32_t nIndex) const override;
+  int32_t GetCount() const override;
+  FX_BOOL IsItemSelected(int32_t nIndex) const override;
+  FX_FLOAT GetFirstHeight() const override;
+  void SetMultipleSel(FX_BOOL bMultiple) override;
+  FX_BOOL IsMultipleSel() const override;
+  FX_BOOL IsValid(int32_t nItemIndex) const override;
+  int32_t FindNext(int32_t nIndex, FX_WCHAR nChar) const override;
+  void Empty() override;
+  CFX_FloatRect GetItemRect(int32_t nIndex) const override;
+  int32_t GetItemIndex(const CFX_FloatPoint& point) const override;
+  int32_t GetFirstSelected() const override;
+
+ protected:
+  void AddItem(const FX_WCHAR* str);
+  virtual void ReArrange(int32_t nItemIndex);
+  CFX_WideString GetItemText(int32_t nIndex) const;
+  void SetItemSelect(int32_t nItemIndex, FX_BOOL bSelected);
+  void SetItemCaret(int32_t nItemIndex, FX_BOOL bCaret);
+  int32_t GetLastSelected() const;
+  FX_WCHAR Toupper(FX_WCHAR c) const;
+
+ private:
+  CLST_ArrayTemplate<CFX_ListItem*> m_aListItems;
+  FX_FLOAT m_fFontSize;
+  IPVT_FontMap* m_pFontMap;
+  FX_BOOL m_bMultiple;
+};
+
+struct CPLST_Select_Item {
+  CPLST_Select_Item(int32_t other_nItemIndex, int32_t other_nState) {
+    nItemIndex = other_nItemIndex;
+    nState = other_nState;
+  }
+
+  int32_t nItemIndex;
+  int32_t nState;  // 0:normal select -1:to deselect 1: to select
+};
+
+class CPLST_Select {
+ public:
+  CPLST_Select();
+  virtual ~CPLST_Select();
+
+ public:
+  void Add(int32_t nItemIndex);
+  void Add(int32_t nBeginIndex, int32_t nEndIndex);
+  void Sub(int32_t nItemIndex);
+  void Sub(int32_t nBeginIndex, int32_t nEndIndex);
+  FX_BOOL IsExist(int32_t nItemIndex) const;
+  int32_t Find(int32_t nItemIndex) const;
+  int32_t GetCount() const;
+  int32_t GetItemIndex(int32_t nIndex) const;
+  int32_t GetState(int32_t nIndex) const;
+  void Done();
+  void DeselectAll();
+
+ private:
+  CFX_ArrayTemplate<CPLST_Select_Item*> m_aItems;
+};
+
+class CFX_ListCtrl : public CFX_List {
+ public:
+  CFX_ListCtrl();
+  ~CFX_ListCtrl() override;
+
+  // CFX_List
+  void SetNotify(IFX_List_Notify* pNotify) override;
+  void OnMouseDown(const CFX_FloatPoint& point,
+                   FX_BOOL bShift,
+                   FX_BOOL bCtrl) override;
+  void OnMouseMove(const CFX_FloatPoint& point,
+                   FX_BOOL bShift,
+                   FX_BOOL bCtrl) override;
+  void OnVK_UP(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_DOWN(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_LEFT(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_RIGHT(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_HOME(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK_END(FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void OnVK(int32_t nItemIndex, FX_BOOL bShift, FX_BOOL bCtrl) override;
+  FX_BOOL OnChar(uint16_t nChar, FX_BOOL bShift, FX_BOOL bCtrl) override;
+  void SetPlateRect(const CFX_FloatRect& rect) override;
+  void SetScrollPos(const CFX_FloatPoint& point) override;
+  void ScrollToListItem(int32_t nItemIndex) override;
+  CFX_FloatRect GetItemRect(int32_t nIndex) const override;
+  int32_t GetCaret() const override { return m_nCaretIndex; }
+  int32_t GetSelect() const override { return m_nSelItem; }
+  int32_t GetTopItem() const override;
+  CFX_FloatRect GetContentRect() const override;
+  int32_t GetItemIndex(const CFX_FloatPoint& point) const override;
+  void AddString(const FX_WCHAR* str) override;
+  void SetTopItem(int32_t nIndex) override;
+  void Select(int32_t nItemIndex) override;
+  void SetCaret(int32_t nItemIndex) override;
+  void Empty() override;
+  void Cancel() override;
+  CFX_WideString GetText() const override;
+  void ReArrange(int32_t nItemIndex) override;
+
+  virtual CFX_FloatPoint InToOut(const CFX_FloatPoint& point) const;
+  virtual CFX_FloatPoint OutToIn(const CFX_FloatPoint& point) const;
+  virtual CFX_FloatRect InToOut(const CFX_FloatRect& rect) const;
+  virtual CFX_FloatRect OutToIn(const CFX_FloatRect& rect) const;
+
+ private:
+  void SetMultipleSelect(int32_t nItemIndex, FX_BOOL bSelected);
+  void SetSingleSelect(int32_t nItemIndex);
+  void InvalidateItem(int32_t nItemIndex);
+  void SelectItems();
+  FX_BOOL IsItemVisible(int32_t nItemIndex) const;
+  void SetScrollInfo();
+  void SetScrollPosY(FX_FLOAT fy);
+
+ private:
+  IFX_List_Notify* m_pNotify;
+  FX_BOOL m_bNotifyFlag;
+  CFX_FloatPoint m_ptScrollPos;
+  CPLST_Select m_aSelItems;  // for multiple
+  int32_t m_nSelItem;        // for single
+  int32_t m_nFootIndex;      // for multiple
+  FX_BOOL m_bCtrlSel;        // for multiple
+  int32_t m_nCaretIndex;     // for multiple
+};
+
+#endif  // FPDFSDK_FXEDIT_INCLUDE_FXET_LIST_H_