Fix heap use after free in CPDFSDK_Annot::GetPDFAnnot.
[pdfium.git] / fpdfsdk / src / fsdk_mgr.cpp
index 7ac370e..9cbb9de 100644 (file)
@@ -1,10 +1,11 @@
 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
+
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "../../public/fpdf_ext.h"
+#include "../../third_party/base/nonstd_unique_ptr.h"
 #include "../include/fsdk_define.h"
 #include "../include/fsdk_mgr.h"
 #include "../include/formfiller/FFL_FormFiller.h"
 #include <ctime>
 #endif
 
-//extern CPDFDoc_Environment* g_pFormFillApp;
-class CFX_SystemHandler:public IFX_SystemHandler
-{
-public:
-       CFX_SystemHandler(CPDFDoc_Environment* pEnv):m_pEnv(pEnv),m_nCharSet(-1) {}
-public:
-       virtual void                            InvalidateRect(FX_HWND hWnd, FX_RECT rect) ;
-       virtual void                            OutputSelectedRect(void* pFormFiller, CPDF_Rect& rect);
-
-       virtual FX_BOOL                         IsSelectionImplemented();
-
-       virtual CFX_WideString          GetClipboardText(FX_HWND hWnd){return L"";}
-       virtual FX_BOOL                         SetClipboardText(FX_HWND hWnd, CFX_WideString string) {return FALSE;}
-       
-       virtual void                            ClientToScreen(FX_HWND hWnd, FX_INT32& x, FX_INT32& y) {}
-       virtual void                            ScreenToClient(FX_HWND hWnd, FX_INT32& x, FX_INT32& y) {}
-
-       /*cursor style
-       FXCT_ARROW      
-       FXCT_NESW               
-       FXCT_NWSE               
-       FXCT_VBEAM              
-       FXCT_HBEAM              
-       FXCT_HAND
-       */
-       virtual void                            SetCursor(FX_INT32 nCursorType);
-
-       virtual FX_HMENU                        CreatePopupMenu() {return NULL;}
-       virtual FX_BOOL                         AppendMenuItem(FX_HMENU hMenu, FX_INT32 nIDNewItem, CFX_WideString string) {return FALSE;}
-       virtual FX_BOOL                         EnableMenuItem(FX_HMENU hMenu, FX_INT32 nIDItem, FX_BOOL bEnabled) {return FALSE;}
-       virtual FX_INT32                        TrackPopupMenu(FX_HMENU hMenu, FX_INT32 x, FX_INT32 y, FX_HWND hParent) {return -1;}
-       virtual void                            DestroyMenu(FX_HMENU hMenu) {}
-
-       virtual CFX_ByteString          GetNativeTrueTypeFont(FX_INT32 nCharset);
-       virtual FX_BOOL                         FindNativeTrueTypeFont(FX_INT32 nCharset, CFX_ByteString sFontFaceName);
-       virtual CPDF_Font*                      AddNativeTrueTypeFontToPDF(CPDF_Document* pDoc, CFX_ByteString sFontFaceName, FX_BYTE nCharset);
-
-       virtual FX_INT32                        SetTimer(FX_INT32 uElapse, TimerCallback lpTimerFunc) ;
-       virtual void                            KillTimer(FX_INT32 nID) ;
-
-
-       virtual FX_BOOL                         IsSHIFTKeyDown(FX_DWORD nFlag) {return m_pEnv->FFI_IsSHIFTKeyDown(nFlag);}
-       virtual FX_BOOL                         IsCTRLKeyDown(FX_DWORD nFlag) {return m_pEnv->FFI_IsCTRLKeyDown(nFlag);}
-       virtual FX_BOOL                         IsALTKeyDown(FX_DWORD nFlag) {return m_pEnv->FFI_IsALTKeyDown(nFlag);}
-       virtual FX_BOOL                         IsINSERTKeyDown(FX_DWORD nFlag) {return m_pEnv->FFI_IsINSERTKeyDown(nFlag);}
-
-       virtual FX_SYSTEMTIME           GetLocalTime();
-
-       virtual FX_INT32                        GetCharSet() {return m_nCharSet;}
-       virtual void                            SetCharSet(FX_INT32 nCharSet) {m_nCharSet = nCharSet;}
-private:
-       CPDFDoc_Environment* m_pEnv;
-       int             m_nCharSet;
+class CFX_SystemHandler : public IFX_SystemHandler {
+ public:
+  CFX_SystemHandler(CPDFDoc_Environment* pEnv) : m_pEnv(pEnv), m_nCharSet(-1) {}
+  ~CFX_SystemHandler() override {}
+
+ public:
+  // IFX_SystemHandler
+  void InvalidateRect(FX_HWND hWnd, FX_RECT rect) override;
+  void OutputSelectedRect(void* pFormFiller, CPDF_Rect& rect) override;
+  FX_BOOL IsSelectionImplemented() override;
+  CFX_WideString GetClipboardText(FX_HWND hWnd) override { return L""; }
+  FX_BOOL SetClipboardText(FX_HWND hWnd, CFX_WideString string) override {
+    return FALSE;
+  }
+  void ClientToScreen(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
+  void ScreenToClient(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
+  void SetCursor(int32_t nCursorType) override;
+  FX_HMENU CreatePopupMenu() override { return NULL; }
+  FX_BOOL AppendMenuItem(FX_HMENU hMenu,
+                         int32_t nIDNewItem,
+                         CFX_WideString string) override {
+    return FALSE;
+  }
+  FX_BOOL EnableMenuItem(FX_HMENU hMenu,
+                         int32_t nIDItem,
+                         FX_BOOL bEnabled) override {
+    return FALSE;
+  }
+  int32_t TrackPopupMenu(FX_HMENU hMenu,
+                         int32_t x,
+                         int32_t y,
+                         FX_HWND hParent) override {
+    return -1;
+  }
+  void DestroyMenu(FX_HMENU hMenu) override {}
+  CFX_ByteString GetNativeTrueTypeFont(int32_t nCharset) override;
+  FX_BOOL FindNativeTrueTypeFont(int32_t nCharset,
+                                 CFX_ByteString sFontFaceName) override;
+  CPDF_Font* AddNativeTrueTypeFontToPDF(CPDF_Document* pDoc,
+                                        CFX_ByteString sFontFaceName,
+                                        uint8_t nCharset) override;
+  int32_t SetTimer(int32_t uElapse, TimerCallback lpTimerFunc) override;
+  void KillTimer(int32_t nID) override;
+  FX_BOOL IsSHIFTKeyDown(FX_DWORD nFlag) override {
+    return m_pEnv->FFI_IsSHIFTKeyDown(nFlag);
+  }
+  FX_BOOL IsCTRLKeyDown(FX_DWORD nFlag) override {
+    return m_pEnv->FFI_IsCTRLKeyDown(nFlag);
+  }
+  FX_BOOL IsALTKeyDown(FX_DWORD nFlag) override {
+    return m_pEnv->FFI_IsALTKeyDown(nFlag);
+  }
+  FX_BOOL IsINSERTKeyDown(FX_DWORD nFlag) override {
+    return m_pEnv->FFI_IsINSERTKeyDown(nFlag);
+  }
+  FX_SYSTEMTIME GetLocalTime() override;
+  int32_t GetCharSet() override { return m_nCharSet; }
+  void SetCharSet(int32_t nCharSet) override { m_nCharSet = nCharSet; }
+
+ private:
+  CPDFDoc_Environment* m_pEnv;
+  int m_nCharSet;
 };
 
-void CFX_SystemHandler::SetCursor(FX_INT32 nCursorType)
-{
-
-       m_pEnv->FFI_SetCursor(nCursorType);
-}
-
-void CFX_SystemHandler::InvalidateRect(FX_HWND hWnd, FX_RECT rect)
-{
-       //g_pFormFillApp->FFI_Invalidate();
-       CPDFSDK_Annot* pSDKAnnot = (CPDFSDK_Annot*)hWnd;
-       CPDF_Page* pPage = NULL;
-       CPDFSDK_PageView* pPageView = NULL;
-       pPageView = pSDKAnnot->GetPageView();
-       pPage = pSDKAnnot->GetPDFPage();
-       if(!pPage || !pPageView)
-               return;
-       CPDF_Matrix page2device;
-       pPageView->GetCurrentMatrix(page2device);
-       CPDF_Matrix device2page;
-       device2page.SetReverse(page2device);
-       FX_FLOAT left, top, right,bottom;
-       device2page.Transform((FX_FLOAT)rect.left, (FX_FLOAT)rect.top, left, top);
-       device2page.Transform((FX_FLOAT)rect.right, (FX_FLOAT)rect.bottom, right, bottom);
-//     m_pEnv->FFI_DeviceToPage(pPage, rect.left, rect.top, (double*)&left, (double*)&top);
-//     m_pEnv->FFI_DeviceToPage(pPage, rect.right, rect.bottom, (double*)&right, (double*)&bottom);
-       CPDF_Rect rcPDF(left, bottom, right, top);
-       rcPDF.Normalize();
-
-       m_pEnv->FFI_Invalidate(pPage, rcPDF.left, rcPDF.top, rcPDF.right, rcPDF.bottom);
-}
-void CFX_SystemHandler::OutputSelectedRect(void* pFormFiller, CPDF_Rect& rect)
-{
-       CFFL_FormFiller* pFFL = (CFFL_FormFiller*)pFormFiller;
-       if(pFFL)
-       {
-               CPDF_Point leftbottom = CPDF_Point(rect.left, rect.bottom);
-               CPDF_Point righttop = CPDF_Point(rect.right, rect.top);
-               CPDF_Point ptA = pFFL->PWLtoFFL(leftbottom);
-               CPDF_Point ptB = pFFL->PWLtoFFL(righttop);      
-
-
-               CPDFSDK_Annot* pAnnot  = pFFL->GetSDKAnnot();
-               ASSERT(pAnnot);
-               CPDF_Page* pPage = pAnnot->GetPDFPage();
-               ASSERT(pPage);
-               m_pEnv->FFI_OutputSelectedRect(pPage, ptA.x, ptB.y, ptB.x, ptA.y);
-       }
-       
-}
-
-FX_BOOL CFX_SystemHandler::IsSelectionImplemented()
-{
-       if(m_pEnv)
-       {
-               FPDF_FORMFILLINFO* pInfo = m_pEnv->GetFormFillInfo();
-               if(pInfo && pInfo->FFI_OutputSelectedRect)
-                       return TRUE;
-       }
-       return FALSE;
-}
-
-CFX_ByteString CFX_SystemHandler::GetNativeTrueTypeFont(FX_INT32 nCharset)
-{
-       return "";
-}
-
-FX_BOOL        CFX_SystemHandler::FindNativeTrueTypeFont(FX_INT32 nCharset, CFX_ByteString sFontFaceName) 
-{
-       CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr();
-//     FXFT_Face nFace = pFontMgr->FindSubstFont(sFontFaceName,TRUE,0,0,0,0,NULL);
-//     FXFT_Face nFace  = pFontMgr->m_pBuiltinMapper->FindSubstFont(sFontFaceName,TRUE,0,0,0,0,NULL);
-
-       if(pFontMgr)
-       {
-               CFX_FontMapper* pFontMapper = pFontMgr->m_pBuiltinMapper;
-               if(pFontMapper)
-               {       
-                       int nSize = pFontMapper->m_InstalledTTFonts.GetSize();
-                       if(nSize ==0)
-                       {
-                               pFontMapper->LoadInstalledFonts();
-                               nSize = pFontMapper->m_InstalledTTFonts.GetSize();
-                       }
-                       
-                       for(int i=0; i<nSize; i++)
-                       {
-                               if(pFontMapper->m_InstalledTTFonts[i].Compare(sFontFaceName))
-                                       return TRUE;
-                       }
-               }
-
-       }
-
-       return FALSE;
-//     pFontMgr->m_FaceMap.Lookup(sFontFaceName,pFont);
-//     return (pFont!=NULL);
-}
-
-static int CharSet2CP(int charset)
-{
-       if(charset == 128)
-               return 932;
-       else if(charset == 134)
-               return 936;
-       else if(charset == 129)
-               return 949;
-       else if(charset == 136)
-               return 950;
-       return 0;
-}
-CPDF_Font* CFX_SystemHandler::AddNativeTrueTypeFontToPDF(CPDF_Document* pDoc, CFX_ByteString sFontFaceName, 
-                                                                                                                FX_BYTE nCharset) 
-{
-       if(pDoc)
-       {
-               CFX_Font* pFXFont = new CFX_Font();
-               pFXFont->LoadSubst(sFontFaceName,TRUE,0,0,0,CharSet2CP(nCharset),FALSE);
-               CPDF_Font* pFont = pDoc->AddFont(pFXFont,nCharset,FALSE);
-               delete pFXFont;
-               return pFont;
-       }
-
-       return NULL;
-}
-
-
-FX_INT32 CFX_SystemHandler::SetTimer(FX_INT32 uElapse, TimerCallback lpTimerFunc)
-{
-       return m_pEnv->FFI_SetTimer(uElapse, lpTimerFunc);
-}
-void CFX_SystemHandler::KillTimer(FX_INT32 nID)
-{
-       m_pEnv->FFI_KillTimer(nID);
-}
-
-FX_SYSTEMTIME CFX_SystemHandler::GetLocalTime()
-{
-       return m_pEnv->FFI_GetLocalTime();
-}
-
-
-CJS_RuntimeFactory* GetJSRuntimeFactory()
-{
-       static CJS_RuntimeFactory s_JSRuntimeFactory;
-       return &s_JSRuntimeFactory;
-}
-
-CPDFDoc_Environment::CPDFDoc_Environment(CPDF_Document* pDoc) :
-       m_pAnnotHandlerMgr(NULL),
-       m_pActionHandler(NULL),
-       m_pJSRuntime(NULL),
-       m_pInfo(NULL),
-       m_pSDKDoc(NULL),
-       m_pPDFDoc(pDoc),
-       m_pIFormFiller(NULL)
-{
-
-       m_pSysHandler = NULL;
-       m_pSysHandler = new CFX_SystemHandler(this);
-
-       
-       m_pJSRuntimeFactory = NULL;
-       m_pJSRuntimeFactory = GetJSRuntimeFactory();
-       m_pJSRuntimeFactory->AddRef();
-}
-
-CPDFDoc_Environment::~CPDFDoc_Environment()
-{
-
-       if ( m_pIFormFiller )
-       {
-               delete m_pIFormFiller;
-               m_pIFormFiller = NULL;
-       }
-       if(m_pJSRuntime && m_pJSRuntimeFactory)
-               m_pJSRuntimeFactory->DeleteJSRuntime(m_pJSRuntime);
-       m_pJSRuntimeFactory->Release();
-
-       if(m_pSysHandler)
-       {
-               delete m_pSysHandler;
-               m_pSysHandler = NULL;
-       }
-
-       if(m_pAnnotHandlerMgr)
-       {
-               delete m_pAnnotHandlerMgr;
-               m_pAnnotHandlerMgr = NULL;
-       }
-       if(m_pActionHandler)
-       {
-               delete m_pActionHandler;
-               m_pActionHandler = NULL;
-       }
-
-
-}
-
-
-IFXJS_Runtime* CPDFDoc_Environment::GetJSRuntime()
-{
-       if(!IsJSInitiated())
-               return NULL;
-       assert(m_pJSRuntimeFactory);
-       if(!m_pJSRuntime)
-               m_pJSRuntime = m_pJSRuntimeFactory->NewJSRuntime(this);
-       return m_pJSRuntime;
+void CFX_SystemHandler::SetCursor(int32_t nCursorType) {
+  m_pEnv->FFI_SetCursor(nCursorType);
+}
+
+void CFX_SystemHandler::InvalidateRect(FX_HWND hWnd, FX_RECT rect) {
+  // g_pFormFillApp->FFI_Invalidate();
+  CPDFSDK_Annot* pSDKAnnot = (CPDFSDK_Annot*)hWnd;
+  CPDF_Page* pPage = NULL;
+  CPDFSDK_PageView* pPageView = NULL;
+  pPageView = pSDKAnnot->GetPageView();
+  pPage = pSDKAnnot->GetPDFPage();
+  if (!pPage || !pPageView)
+    return;
+  CPDF_Matrix page2device;
+  pPageView->GetCurrentMatrix(page2device);
+  CPDF_Matrix device2page;
+  device2page.SetReverse(page2device);
+  FX_FLOAT left, top, right, bottom;
+  device2page.Transform((FX_FLOAT)rect.left, (FX_FLOAT)rect.top, left, top);
+  device2page.Transform((FX_FLOAT)rect.right, (FX_FLOAT)rect.bottom, right,
+                        bottom);
+  //  m_pEnv->FFI_DeviceToPage(pPage, rect.left, rect.top, (double*)&left,
+  //  (double*)&top);
+  //  m_pEnv->FFI_DeviceToPage(pPage, rect.right, rect.bottom, (double*)&right,
+  //  (double*)&bottom);
+  CPDF_Rect rcPDF(left, bottom, right, top);
+  rcPDF.Normalize();
+
+  m_pEnv->FFI_Invalidate(pPage, rcPDF.left, rcPDF.top, rcPDF.right,
+                         rcPDF.bottom);
+}
+void CFX_SystemHandler::OutputSelectedRect(void* pFormFiller, CPDF_Rect& rect) {
+  CFFL_FormFiller* pFFL = (CFFL_FormFiller*)pFormFiller;
+  if (pFFL) {
+    CPDF_Point leftbottom = CPDF_Point(rect.left, rect.bottom);
+    CPDF_Point righttop = CPDF_Point(rect.right, rect.top);
+    CPDF_Point ptA = pFFL->PWLtoFFL(leftbottom);
+    CPDF_Point ptB = pFFL->PWLtoFFL(righttop);
+
+    CPDFSDK_Annot* pAnnot = pFFL->GetSDKAnnot();
+    ASSERT(pAnnot);
+    CPDF_Page* pPage = pAnnot->GetPDFPage();
+    ASSERT(pPage);
+    m_pEnv->FFI_OutputSelectedRect(pPage, ptA.x, ptB.y, ptB.x, ptA.y);
+  }
+}
+
+FX_BOOL CFX_SystemHandler::IsSelectionImplemented() {
+  if (m_pEnv) {
+    FPDF_FORMFILLINFO* pInfo = m_pEnv->GetFormFillInfo();
+    if (pInfo && pInfo->FFI_OutputSelectedRect)
+      return TRUE;
+  }
+  return FALSE;
+}
+
+CFX_ByteString CFX_SystemHandler::GetNativeTrueTypeFont(int32_t nCharset) {
+  return "";
+}
+
+FX_BOOL CFX_SystemHandler::FindNativeTrueTypeFont(
+    int32_t nCharset,
+    CFX_ByteString sFontFaceName) {
+  CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr();
+  if (pFontMgr) {
+    CFX_FontMapper* pFontMapper = pFontMgr->m_pBuiltinMapper;
+    if (pFontMapper) {
+      int nSize = pFontMapper->m_InstalledTTFonts.GetSize();
+      if (nSize == 0) {
+        pFontMapper->LoadInstalledFonts();
+        nSize = pFontMapper->m_InstalledTTFonts.GetSize();
+      }
+
+      for (int i = 0; i < nSize; i++) {
+        if (pFontMapper->m_InstalledTTFonts[i].Compare(sFontFaceName))
+          return TRUE;
+      }
+    }
+  }
+
+  return FALSE;
+}
+
+static int CharSet2CP(int charset) {
+  if (charset == 128)
+    return 932;
+  if (charset == 134)
+    return 936;
+  if (charset == 129)
+    return 949;
+  if (charset == 136)
+    return 950;
+  return 0;
+}
+CPDF_Font* CFX_SystemHandler::AddNativeTrueTypeFontToPDF(
+    CPDF_Document* pDoc,
+    CFX_ByteString sFontFaceName,
+    uint8_t nCharset) {
+  if (pDoc) {
+    CFX_Font* pFXFont = new CFX_Font();
+    pFXFont->LoadSubst(sFontFaceName, TRUE, 0, 0, 0, CharSet2CP(nCharset),
+                       FALSE);
+    CPDF_Font* pFont = pDoc->AddFont(pFXFont, nCharset, FALSE);
+    delete pFXFont;
+    return pFont;
+  }
+
+  return NULL;
+}
+
+int32_t CFX_SystemHandler::SetTimer(int32_t uElapse,
+                                    TimerCallback lpTimerFunc) {
+  return m_pEnv->FFI_SetTimer(uElapse, lpTimerFunc);
+}
+void CFX_SystemHandler::KillTimer(int32_t nID) {
+  m_pEnv->FFI_KillTimer(nID);
+}
+
+FX_SYSTEMTIME CFX_SystemHandler::GetLocalTime() {
+  return m_pEnv->FFI_GetLocalTime();
+}
+
+CJS_RuntimeFactory* GetJSRuntimeFactory() {
+  static CJS_RuntimeFactory s_JSRuntimeFactory;
+  return &s_JSRuntimeFactory;
+}
+
+CPDFDoc_Environment::CPDFDoc_Environment(CPDF_Document* pDoc,
+                                         FPDF_FORMFILLINFO* pFFinfo)
+    : m_pAnnotHandlerMgr(NULL),
+      m_pActionHandler(NULL),
+      m_pJSRuntime(NULL),
+      m_pInfo(pFFinfo),
+      m_pSDKDoc(NULL),
+      m_pPDFDoc(pDoc),
+      m_pIFormFiller(NULL) {
+  m_pSysHandler = new CFX_SystemHandler(this);
+  m_pJSRuntimeFactory = GetJSRuntimeFactory();
+  m_pJSRuntimeFactory->AddRef();
+}
+
+CPDFDoc_Environment::~CPDFDoc_Environment() {
+  delete m_pIFormFiller;
+  m_pIFormFiller = NULL;
+  if (m_pJSRuntime && m_pJSRuntimeFactory)
+    m_pJSRuntimeFactory->DeleteJSRuntime(m_pJSRuntime);
+  m_pJSRuntimeFactory->Release();
+
+  delete m_pSysHandler;
+  m_pSysHandler = NULL;
+
+  delete m_pAnnotHandlerMgr;
+  m_pAnnotHandlerMgr = NULL;
+  delete m_pActionHandler;
+  m_pActionHandler = NULL;
+}
+
+int CPDFDoc_Environment::JS_appAlert(const FX_WCHAR* Msg,
+                                     const FX_WCHAR* Title,
+                                     FX_UINT Type,
+                                     FX_UINT Icon) {
+  if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->app_alert) {
+    CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
+    CFX_ByteString bsTitle = CFX_WideString(Title).UTF16LE_Encode();
+    FPDF_WIDESTRING pMsg = (FPDF_WIDESTRING)bsMsg.GetBuffer(bsMsg.GetLength());
+    FPDF_WIDESTRING pTitle =
+        (FPDF_WIDESTRING)bsTitle.GetBuffer(bsTitle.GetLength());
+    int ret = m_pInfo->m_pJsPlatform->app_alert(m_pInfo->m_pJsPlatform, pMsg,
+                                                pTitle, Type, Icon);
+    bsMsg.ReleaseBuffer();
+    bsTitle.ReleaseBuffer();
+    return ret;
+  }
+  return -1;
+}
+
+int CPDFDoc_Environment::JS_appResponse(const FX_WCHAR* Question,
+                                        const FX_WCHAR* Title,
+                                        const FX_WCHAR* Default,
+                                        const FX_WCHAR* cLabel,
+                                        FPDF_BOOL bPassword,
+                                        void* response,
+                                        int length) {
+  if (m_pInfo && m_pInfo->m_pJsPlatform &&
+      m_pInfo->m_pJsPlatform->app_response) {
+    CFX_ByteString bsQuestion = CFX_WideString(Question).UTF16LE_Encode();
+    CFX_ByteString bsTitle = CFX_WideString(Title).UTF16LE_Encode();
+    CFX_ByteString bsDefault = CFX_WideString(Default).UTF16LE_Encode();
+    CFX_ByteString bsLabel = CFX_WideString(cLabel).UTF16LE_Encode();
+    FPDF_WIDESTRING pQuestion =
+        (FPDF_WIDESTRING)bsQuestion.GetBuffer(bsQuestion.GetLength());
+    FPDF_WIDESTRING pTitle =
+        (FPDF_WIDESTRING)bsTitle.GetBuffer(bsTitle.GetLength());
+    FPDF_WIDESTRING pDefault =
+        (FPDF_WIDESTRING)bsDefault.GetBuffer(bsDefault.GetLength());
+    FPDF_WIDESTRING pLabel =
+        (FPDF_WIDESTRING)bsLabel.GetBuffer(bsLabel.GetLength());
+    int ret = m_pInfo->m_pJsPlatform->app_response(
+        m_pInfo->m_pJsPlatform, pQuestion, pTitle, pDefault, pLabel, bPassword,
+        response, length);
+    bsQuestion.ReleaseBuffer();
+    bsTitle.ReleaseBuffer();
+    bsDefault.ReleaseBuffer();
+    bsLabel.ReleaseBuffer();
+    return ret;
+  }
+  return -1;
+}
+
+CFX_WideString CPDFDoc_Environment::JS_fieldBrowse() {
+  if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
+      !m_pInfo->m_pJsPlatform->Field_browse) {
+    return L"";
+  }
+
+  const int nRequiredLen =
+      m_pInfo->m_pJsPlatform->Field_browse(m_pInfo->m_pJsPlatform, nullptr, 0);
+  if (nRequiredLen <= 0)
+    return L"";
+
+  nonstd::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
+  memset(pBuff.get(), 0, nRequiredLen);
+  const int nActualLen = m_pInfo->m_pJsPlatform->Field_browse(
+      m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
+  if (nActualLen <= 0 || nActualLen > nRequiredLen)
+    return L"";
+
+  CFX_ByteString bsRet = CFX_ByteString(pBuff.get(), nActualLen);
+  CFX_WideString wsRet = CFX_WideString::FromLocal(bsRet);
+  return wsRet;
+}
+
+CFX_WideString CPDFDoc_Environment::JS_docGetFilePath() {
+  if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
+      !m_pInfo->m_pJsPlatform->Doc_getFilePath) {
+    return L"";
+  }
+
+  const int nRequiredLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
+      m_pInfo->m_pJsPlatform, nullptr, 0);
+  if (nRequiredLen <= 0)
+    return L"";
+
+  nonstd::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
+  memset(pBuff.get(), 0, nRequiredLen);
+  const int nActualLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
+      m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
+  if (nActualLen <= 0 || nActualLen > nRequiredLen)
+    return L"";
+
+  CFX_ByteString bsRet = CFX_ByteString(pBuff.get(), nActualLen);
+  CFX_WideString wsRet = CFX_WideString::FromLocal(bsRet);
+  return wsRet;
+}
+
+void CPDFDoc_Environment::JS_docSubmitForm(void* formData,
+                                           int length,
+                                           const FX_WCHAR* URL) {
+  if (m_pInfo && m_pInfo->m_pJsPlatform &&
+      m_pInfo->m_pJsPlatform->Doc_submitForm) {
+    CFX_ByteString bsDestination = CFX_WideString(URL).UTF16LE_Encode();
+    FPDF_WIDESTRING pDestination =
+        (FPDF_WIDESTRING)bsDestination.GetBuffer(bsDestination.GetLength());
+    m_pInfo->m_pJsPlatform->Doc_submitForm(m_pInfo->m_pJsPlatform, formData,
+                                           length, pDestination);
+    bsDestination.ReleaseBuffer();
+  }
+}
+
+void CPDFDoc_Environment::JS_docmailForm(void* mailData,
+                                         int length,
+                                         FPDF_BOOL bUI,
+                                         const FX_WCHAR* To,
+                                         const FX_WCHAR* Subject,
+                                         const FX_WCHAR* CC,
+                                         const FX_WCHAR* BCC,
+                                         const FX_WCHAR* Msg) {
+  if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->Doc_mail) {
+    CFX_ByteString bsTo = CFX_WideString(To).UTF16LE_Encode();
+    CFX_ByteString bsCC = CFX_WideString(Subject).UTF16LE_Encode();
+    CFX_ByteString bsBcc = CFX_WideString(BCC).UTF16LE_Encode();
+    CFX_ByteString bsSubject = CFX_WideString(Subject).UTF16LE_Encode();
+    CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
+    FPDF_WIDESTRING pTo = (FPDF_WIDESTRING)bsTo.GetBuffer(bsTo.GetLength());
+    FPDF_WIDESTRING pCC = (FPDF_WIDESTRING)bsCC.GetBuffer(bsCC.GetLength());
+    FPDF_WIDESTRING pBcc = (FPDF_WIDESTRING)bsBcc.GetBuffer(bsBcc.GetLength());
+    FPDF_WIDESTRING pSubject =
+        (FPDF_WIDESTRING)bsSubject.GetBuffer(bsSubject.GetLength());
+    FPDF_WIDESTRING pMsg = (FPDF_WIDESTRING)bsMsg.GetBuffer(bsMsg.GetLength());
+    m_pInfo->m_pJsPlatform->Doc_mail(m_pInfo->m_pJsPlatform, mailData, length,
+                                     bUI, pTo, pSubject, pCC, pBcc, pMsg);
+    bsTo.ReleaseBuffer();
+    bsCC.ReleaseBuffer();
+    bsBcc.ReleaseBuffer();
+    bsSubject.ReleaseBuffer();
+    bsMsg.ReleaseBuffer();
+  }
+}
+
+IFXJS_Runtime* CPDFDoc_Environment::GetJSRuntime() {
+  if (!IsJSInitiated())
+    return NULL;
+  if (!m_pJSRuntime)
+    m_pJSRuntime = m_pJSRuntimeFactory->NewJSRuntime(this);
+  return m_pJSRuntime;
+}
+
+CPDFSDK_AnnotHandlerMgr* CPDFDoc_Environment::GetAnnotHandlerMgr() {
+  if (!m_pAnnotHandlerMgr)
+    m_pAnnotHandlerMgr = new CPDFSDK_AnnotHandlerMgr(this);
+  return m_pAnnotHandlerMgr;
+}
+
+CPDFSDK_ActionHandler* CPDFDoc_Environment::GetActionHander() {
+  if (!m_pActionHandler)
+    m_pActionHandler = new CPDFSDK_ActionHandler();
+  return m_pActionHandler;
+}
+
+CFFL_IFormFiller* CPDFDoc_Environment::GetIFormFiller() {
+  if (!m_pIFormFiller)
+    m_pIFormFiller = new CFFL_IFormFiller(this);
+  return m_pIFormFiller;
+}
+
+CPDFSDK_Document::CPDFSDK_Document(CPDF_Document* pDoc,
+                                   CPDFDoc_Environment* pEnv)
+    : m_pDoc(pDoc),
+      m_pInterForm(nullptr),
+      m_pFocusAnnot(nullptr),
+      m_pEnv(pEnv),
+      m_pOccontent(nullptr),
+      m_bChangeMask(FALSE) {}
+
+CPDFSDK_Document::~CPDFSDK_Document() {
+  for (auto& it : m_pageMap)
+    delete it.second;
+  m_pageMap.clear();
+
+  delete m_pInterForm;
+  m_pInterForm = nullptr;
+
+  delete m_pOccontent;
+  m_pOccontent = nullptr;
+}
+
+CPDFSDK_PageView* CPDFSDK_Document::GetPageView(CPDF_Page* pPDFPage,
+                                                FX_BOOL ReNew) {
+  auto it = m_pageMap.find(pPDFPage);
+  if (it != m_pageMap.end())
+    return it->second;
+
+  if (!ReNew)
+    return nullptr;
+
+  CPDFSDK_PageView* pPageView = new CPDFSDK_PageView(this, pPDFPage);
+  m_pageMap[pPDFPage] = pPageView;
+  // Delay to load all the annotations, to avoid endless loop.
+  pPageView->LoadFXAnnots();
+  return pPageView;
+}
+
+CPDFSDK_PageView* CPDFSDK_Document::GetCurrentView() {
+  CPDF_Page* pPage = (CPDF_Page*)m_pEnv->FFI_GetCurrentPage(m_pDoc);
+  return pPage ? GetPageView(pPage, TRUE) : nullptr;
+}
+
+CPDFSDK_PageView* CPDFSDK_Document::GetPageView(int nIndex) {
+  CPDF_Page* pTempPage = (CPDF_Page*)m_pEnv->FFI_GetPage(m_pDoc, nIndex);
+  if (!pTempPage)
+    return nullptr;
+
+  auto it = m_pageMap.find(pTempPage);
+  return it->second;
+}
+
+void CPDFSDK_Document::ProcJavascriptFun() {
+  CPDF_Document* pPDFDoc = GetDocument();
+  CPDF_DocJSActions docJS(pPDFDoc);
+  int iCount = docJS.CountJSActions();
+  if (iCount < 1)
+    return;
+  for (int i = 0; i < iCount; i++) {
+    CFX_ByteString csJSName;
+    CPDF_Action jsAction = docJS.GetJSAction(i, csJSName);
+    if (m_pEnv->GetActionHander())
+      m_pEnv->GetActionHander()->DoAction_JavaScript(
+          jsAction, CFX_WideString::FromLocal(csJSName), this);
+  }
 }
 
-CPDFSDK_AnnotHandlerMgr* CPDFDoc_Environment::GetAnnotHandlerMgr()
-{
-       if(!m_pAnnotHandlerMgr)
-               m_pAnnotHandlerMgr = new CPDFSDK_AnnotHandlerMgr(this);
-       return m_pAnnotHandlerMgr;
-}
+FX_BOOL CPDFSDK_Document::ProcOpenAction() {
+  if (!m_pDoc)
+    return FALSE;
 
-CPDFSDK_ActionHandler* CPDFDoc_Environment::GetActionHander()
-{
-       if(!m_pActionHandler)
-               m_pActionHandler = new CPDFSDK_ActionHandler(this);
-       return m_pActionHandler;
-}
+  CPDF_Dictionary* pRoot = m_pDoc->GetRoot();
+  if (!pRoot)
+    return FALSE;
 
-int CPDFDoc_Environment::RegAppHandle(FPDF_FORMFILLINFO* pFFinfo)
-{
-       m_pInfo  = pFFinfo; 
-       return TRUE;
-}
+  CPDF_Object* pOpenAction = pRoot->GetDict("OpenAction");
+  if (!pOpenAction)
+    pOpenAction = pRoot->GetArray("OpenAction");
+
+  if (!pOpenAction)
+    return FALSE;
 
-CPDFSDK_Document* CPDFDoc_Environment::GetCurrentDoc()
-{
-       return m_pSDKDoc;
-}
-
-CFFL_IFormFiller* CPDFDoc_Environment::GetIFormFiller()
-{
-       if(!m_pIFormFiller)
-               m_pIFormFiller = new CFFL_IFormFiller(this);
-       return m_pIFormFiller;
-}
-
-FX_BOOL        CPDFDoc_Environment::IsJSInitiated()
-{
-       if(m_pInfo)
-       {
-               if(m_pInfo->m_pJsPlatform)
-                       return TRUE;
-               else
-                       return FALSE;
-       }
-       return FALSE;
-}
-
-CPDFSDK_Document::CPDFSDK_Document(CPDF_Document* pDoc,CPDFDoc_Environment* pEnv):m_pDoc(pDoc),
-                                               m_pInterForm(NULL),m_pEnv(pEnv),m_pOccontent(NULL),m_bChangeMask(FALSE)
-{
-       m_pFocusAnnot = NULL;
-}
-
-CPDFSDK_Document::~CPDFSDK_Document()
-{
-       FX_POSITION pos = m_pageMap.GetStartPosition();
-       while (pos) {
-            CPDF_Page* pPage = NULL;
-            CPDFSDK_PageView* pPageView = NULL;
-            m_pageMap.GetNextAssoc(pos, pPage, pPageView);
-            delete pPageView;
-        }
-        m_pageMap.RemoveAll();
-       if(m_pInterForm)
-       {
-               m_pInterForm->Destroy();
-               m_pInterForm = NULL;
-       }
-       if(m_pOccontent)
-       {
-               delete m_pOccontent;
-               m_pOccontent = NULL;
-       }
-}
-
-void CPDFSDK_Document::InitPageView()
-{
-       int nCount = m_pDoc->GetPageCount();
-       for(int i=0; i<nCount; i++)
-       {
-       // To do
-//             CPDF_Dictionary* pDic = m_pDoc->GetPage(i);
-//             m_pageMap.SetAt(pDic, pPageView);
-       }
-}
-
-void CPDFSDK_Document::AddPageView(CPDF_Page* pPDFPage, CPDFSDK_PageView* pPageView)
-{
-       m_pageMap.SetAt(pPDFPage, pPageView);
-}
-
-CPDFSDK_PageView* CPDFSDK_Document::GetPageView(CPDF_Page* pPDFPage, FX_BOOL ReNew)
-{
-       CPDFSDK_PageView* pPageView = (CPDFSDK_PageView*)m_pageMap.GetValueAt(pPDFPage);
-       if(pPageView != NULL)
-               return pPageView;
-       if(ReNew)
-       {
-               pPageView = new CPDFSDK_PageView(this,pPDFPage);
-               m_pageMap.SetAt(pPDFPage, pPageView);
-               //Delay to load all the annotations, to avoid endless loop.
-               pPageView->LoadFXAnnots();
-       }
-       return pPageView;
-
-}
-
-CPDFSDK_PageView* CPDFSDK_Document::GetCurrentView()
-{
-       CPDF_Page * pPage = (CPDF_Page *)m_pEnv->FFI_GetCurrentPage(m_pDoc);
-       if(pPage)
-               return this->GetPageView(pPage, TRUE);
-       return NULL;
-}
-
-CPDFSDK_PageView* CPDFSDK_Document::GetPageView(int nIndex)
-{
-       CPDFSDK_PageView * pTempPageView = NULL;
-       CPDF_Page * pTempPage = (CPDF_Page*)m_pEnv->FFI_GetPage(m_pDoc,nIndex);
-       if(!pTempPage)
-               return NULL;
-
-       m_pageMap.Lookup(pTempPage, pTempPageView);
-       
-       ASSERT(pTempPageView != NULL);
-       
-       return pTempPageView;
-}
-
-void CPDFSDK_Document:: ProcJavascriptFun()
-{
-       CPDF_Document* pPDFDoc = this->GetDocument();
-       CPDF_DocJSActions docJS(pPDFDoc);
-       int iCount = docJS.CountJSActions();
-       if (iCount < 1) return;
-       for (int i = 0; i < iCount; i ++)
-       {
-               CFX_ByteString csJSName;
-               CPDF_Action jsAction = docJS.GetJSAction(i, csJSName);
-               if(m_pEnv->GetActionHander())
-                       m_pEnv->GetActionHander()->DoAction_JavaScript(jsAction,CFX_WideString::FromLocal(csJSName),this);
-       }
-       
-}
-
-FX_BOOL CPDFSDK_Document::ProcOpenAction()
-{
-       if(!m_pDoc)
-               return FALSE;
-
-       CPDF_Dictionary* pRoot = m_pDoc->GetRoot();
-       if (!pRoot)
-               return FALSE;
-
-       CPDF_Object* pOpenAction = pRoot->GetDict("OpenAction");
-       if(!pOpenAction)
-               pOpenAction = pRoot->GetArray("OpenAction");
-
-       if(!pOpenAction)
-               return FALSE;
-
-       if(pOpenAction->GetType()==PDFOBJ_ARRAY)
-               return TRUE;
-
-       if(pOpenAction->GetType()==PDFOBJ_DICTIONARY)
-       {
-               CPDF_Dictionary * pDict=(CPDF_Dictionary*)pOpenAction;
-               CPDF_Action action(pDict);
-               if(m_pEnv->GetActionHander())
-                       m_pEnv->GetActionHander()->DoAction_DocOpen(action, this);
-               return TRUE;
-       }
-       return FALSE;
-}
-
-CPDF_OCContext*        CPDFSDK_Document::GetOCContext()
-{
-       if(!m_pOccontent)
-               m_pOccontent = new CPDF_OCContext(m_pDoc);
-       return m_pOccontent;
-}
-
-void CPDFSDK_Document::ReMovePageView(CPDF_Page* pPDFPage)
-{
-       CPDFSDK_PageView* pPageView = (CPDFSDK_PageView*)m_pageMap.GetValueAt(pPDFPage);
-       if(pPageView && !pPageView->IsLocked())
-       {
-               delete pPageView;
-               m_pageMap.RemoveKey(pPDFPage);
-       }
-}
-
-CPDF_Page * CPDFSDK_Document::GetPage(int nIndex)
-{
-       CPDF_Page * pTempPage = (CPDF_Page*)m_pEnv->FFI_GetPage(m_pDoc,nIndex);
-       if(!pTempPage)
-               return NULL;
-       return pTempPage;
-}
-
-CPDFSDK_InterForm* CPDFSDK_Document::GetInterForm()
-{
-       if(!m_pInterForm)
-               m_pInterForm = new CPDFSDK_InterForm(this);
-       return m_pInterForm;
-}
-
-void CPDFSDK_Document::UpdateAllViews(CPDFSDK_PageView* pSender, CPDFSDK_Annot* pAnnot)
-{
-       
-       FX_POSITION pos = m_pageMap.GetStartPosition();
-       CPDF_Page * pPage = NULL;
-       CPDFSDK_PageView * pPageView = NULL;
-       while(pos)
-       {
-               m_pageMap.GetNextAssoc(pos, pPage, pPageView);
-
-               if(pPageView != pSender)
-               {
-                       pPageView->UpdateView(pAnnot);
-               }
-       }
-}
-
-CPDFSDK_Annot* CPDFSDK_Document::GetFocusAnnot()
-{
-       return this->m_pFocusAnnot;     
-}
-
-FX_BOOL CPDFSDK_Document::SetFocusAnnot(CPDFSDK_Annot* pAnnot,FX_UINT nFlag)
-{
-
-       if(m_pFocusAnnot==pAnnot) return TRUE;
-       
-       if(m_pFocusAnnot)
-       {
-               if(!this->KillFocusAnnot(nFlag) ) return FALSE; 
-       }
-       CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
-       if(pAnnot && pPageView->IsValid())
-       {
-               CPDFSDK_AnnotHandlerMgr *pAnnotHandler=m_pEnv->GetAnnotHandlerMgr();
-
-               if(pAnnotHandler&&!m_pFocusAnnot)
-               {
-                       if (!pAnnotHandler->Annot_OnSetFocus(pAnnot,nFlag))
-                               return FALSE;
-                       if(!m_pFocusAnnot)
-                       {
-                               this->m_pFocusAnnot=pAnnot;
-                               return TRUE;
-                       }
-               }                       
-       }
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_Document::KillFocusAnnot(FX_UINT nFlag)
-{
-       if(m_pFocusAnnot)
-       {
-               CPDFSDK_AnnotHandlerMgr *pAnnotHandler=m_pEnv->GetAnnotHandlerMgr();
-               if(pAnnotHandler)
-               {
-                       CPDFSDK_Annot* pFocusAnnot = m_pFocusAnnot;
-                       m_pFocusAnnot = NULL;
-                       if(pAnnotHandler->Annot_OnKillFocus(pFocusAnnot, nFlag))
-                       {
-                               
-                               if(pFocusAnnot->GetType() == FX_BSTRC("Widget"))
-                               {
-                                       CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pFocusAnnot;
-                                       int nFieldType = pWidget->GetFieldType();
-                                       if(FIELDTYPE_TEXTFIELD == nFieldType || FIELDTYPE_COMBOBOX == nFieldType)
-                                               m_pEnv->FFI_OnSetFieldInputFocus(NULL, NULL, 0, FALSE);
-                               }
-
-                               if(!m_pFocusAnnot)
-                                       return TRUE;
-                       }
-                       else
-                       {
-                               m_pFocusAnnot = pFocusAnnot;
-                       }
-               }
-       }
-       return FALSE;
-}
-
-FX_BOOL        CPDFSDK_Document::DeletePages(int nStart, int  nCount)
-{
-       if ( nStart < 0 || nStart >= GetPageCount() || nCount <= 0 )
-       {
-               return FALSE;
-       }
-
-       CPDF_Page * pTempPage = NULL;
-       for ( int i = nCount-1; i >= 0; i-- )
-       {
-               pTempPage = GetPage(nStart+i);
-               if ( pTempPage != NULL )
-               {
-                       ReMovePageView(pTempPage);
-               }
-       }
-       return TRUE;
-}
-
-void CPDFSDK_Document::OnCloseDocument()
-{
-       KillFocusAnnot();
-}
-
-FX_BOOL CPDFSDK_Document::GetPermissions(int nFlag)
-{
-       FX_DWORD dwPermissions = m_pDoc->GetUserPermissions();
-       return dwPermissions&nFlag;
-}
-
-IFXJS_Runtime * CPDFSDK_Document::GetJsRuntime()
-{
-       ASSERT(m_pEnv!=NULL);
-       return m_pEnv->GetJSRuntime();
-}
-
-CFX_WideString CPDFSDK_Document::GetPath() 
-{
-       ASSERT(m_pEnv != NULL);
-       return m_pEnv->JS_docGetFilePath();
-}
-
-
-CPDFSDK_PageView::CPDFSDK_PageView(CPDFSDK_Document* pSDKDoc,CPDF_Page* page):m_page(page),m_pSDKDoc(pSDKDoc)
-{
-       CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
-       if(pInterForm)
-       {
-               CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
-               pPDFInterForm->FixPageFields(page);
-       }
-        m_page->SetPrivateData((FX_LPVOID)m_page, (FX_LPVOID)this, NULL);
-       m_fxAnnotArray.RemoveAll();
-
-       m_bEnterWidget = FALSE;
-       m_bExitWidget = FALSE;
-       m_bOnWidget = FALSE;
-       m_CaptureWidget = NULL;
-       m_bValid = FALSE;
-        m_bLocked = FALSE;
-        m_bTakeOverPage = FALSE;
-}
-
-CPDFSDK_PageView::~CPDFSDK_PageView()
-{
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();        
-       int nAnnotCount = m_fxAnnotArray.GetSize();
-
-       for (int i=0; i<nAnnotCount; i++)
-       {
-               CPDFSDK_Annot* pAnnot = (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(i);
-               //if there is a focused annot on the page, we should kill the focus first.
-               if(pAnnot == m_pSDKDoc->GetFocusAnnot())
-                       KillFocusAnnot();
-               CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-               ASSERT(pAnnotHandlerMgr);
-               pAnnotHandlerMgr->ReleaseAnnot(pAnnot);
-       }
-       m_fxAnnotArray.RemoveAll();
-       if(m_pAnnotList)
-       {
-               delete m_pAnnotList;
-               m_pAnnotList = NULL;
-       }
-        m_page->RemovePrivateData((FX_LPVOID)m_page);
-        if(m_bTakeOverPage) {
-            delete m_page;
+  if (pOpenAction->GetType() == PDFOBJ_ARRAY)
+    return TRUE;
+
+  if (pOpenAction->GetType() == PDFOBJ_DICTIONARY) {
+    CPDF_Dictionary* pDict = (CPDF_Dictionary*)pOpenAction;
+    CPDF_Action action(pDict);
+    if (m_pEnv->GetActionHander())
+      m_pEnv->GetActionHander()->DoAction_DocOpen(action, this);
+    return TRUE;
+  }
+  return FALSE;
+}
+
+CPDF_OCContext* CPDFSDK_Document::GetOCContext() {
+  if (!m_pOccontent)
+    m_pOccontent = new CPDF_OCContext(m_pDoc);
+  return m_pOccontent;
+}
+
+void CPDFSDK_Document::ReMovePageView(CPDF_Page* pPDFPage) {
+  auto it = m_pageMap.find(pPDFPage);
+  if (it == m_pageMap.end())
+    return;
+
+  CPDFSDK_PageView* pPageView = it->second;
+  if (pPageView->IsLocked())
+    return;
+
+  delete pPageView;
+  m_pageMap.erase(it);
+}
+
+CPDF_Page* CPDFSDK_Document::GetPage(int nIndex) {
+  CPDF_Page* pTempPage = (CPDF_Page*)m_pEnv->FFI_GetPage(m_pDoc, nIndex);
+  if (!pTempPage)
+    return NULL;
+  return pTempPage;
+}
+
+CPDFSDK_InterForm* CPDFSDK_Document::GetInterForm() {
+  if (!m_pInterForm)
+    m_pInterForm = new CPDFSDK_InterForm(this);
+  return m_pInterForm;
+}
+
+void CPDFSDK_Document::UpdateAllViews(CPDFSDK_PageView* pSender,
+                                      CPDFSDK_Annot* pAnnot) {
+  for (const auto& it : m_pageMap) {
+    CPDFSDK_PageView* pPageView = it.second;
+    if (pPageView != pSender) {
+      pPageView->UpdateView(pAnnot);
+    }
+  }
+}
+
+CPDFSDK_Annot* CPDFSDK_Document::GetFocusAnnot() {
+  return m_pFocusAnnot;
+}
+
+FX_BOOL CPDFSDK_Document::SetFocusAnnot(CPDFSDK_Annot* pAnnot, FX_UINT nFlag) {
+  if (m_pFocusAnnot == pAnnot)
+    return TRUE;
+
+  if (m_pFocusAnnot) {
+    if (!KillFocusAnnot(nFlag))
+      return FALSE;
+  }
+  CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
+  if (pAnnot && pPageView->IsValid()) {
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandler = m_pEnv->GetAnnotHandlerMgr();
+
+    if (pAnnotHandler && !m_pFocusAnnot) {
+      if (!pAnnotHandler->Annot_OnSetFocus(pAnnot, nFlag))
+        return FALSE;
+      if (!m_pFocusAnnot) {
+        m_pFocusAnnot = pAnnot;
+        return TRUE;
+      }
+    }
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_Document::KillFocusAnnot(FX_UINT nFlag) {
+  if (m_pFocusAnnot) {
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandler = m_pEnv->GetAnnotHandlerMgr();
+    if (pAnnotHandler) {
+      CPDFSDK_Annot* pFocusAnnot = m_pFocusAnnot;
+      m_pFocusAnnot = NULL;
+      if (pAnnotHandler->Annot_OnKillFocus(pFocusAnnot, nFlag)) {
+        if (pFocusAnnot->GetType() == FX_BSTRC("Widget")) {
+          CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pFocusAnnot;
+          int nFieldType = pWidget->GetFieldType();
+          if (FIELDTYPE_TEXTFIELD == nFieldType ||
+              FIELDTYPE_COMBOBOX == nFieldType)
+            m_pEnv->FFI_OnSetFieldInputFocus(NULL, NULL, 0, FALSE);
         }
-}
 
-void CPDFSDK_PageView::PageView_OnDraw(CFX_RenderDevice* pDevice, CPDF_Matrix* pUser2Device,CPDF_RenderOptions* pOptions)
-{
-       m_curMatrix = *pUser2Device;
-       
-       //      m_pAnnotList->DisplayAnnots(m_page, pDevice, pUser2Device, FALSE, pOptions);
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-       CPDFSDK_AnnotIterator annotIterator(this, TRUE);
-       CPDFSDK_Annot * pSDKAnnot=NULL;
-       int index=-1;
-       while((pSDKAnnot = annotIterator.Next(index)))
-       {
-               CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-               ASSERT(pAnnotHandlerMgr);
-               pAnnotHandlerMgr->Annot_OnDraw(this, pSDKAnnot, pDevice, pUser2Device, 0);
-       }
-
-}
-
-CPDF_Annot* CPDFSDK_PageView::GetPDFAnnotAtPoint(FX_FLOAT pageX, FX_FLOAT pageY)
-{
-       
-       int nCount = m_pAnnotList->Count();
-       for(int i = 0 ; i<nCount; i++)
-       {
-               CPDF_Annot* pAnnot = m_pAnnotList->GetAt(i);
-               CFX_FloatRect annotRect;
-               pAnnot->GetRect(annotRect);
-               if(annotRect.Contains(pageX, pageY))
-                       return pAnnot;
-       }
-       return NULL;
-}
-
-CPDF_Annot* CPDFSDK_PageView::GetPDFWidgetAtPoint(FX_FLOAT pageX, FX_FLOAT pageY)
-{
-       
-       int nCount = m_pAnnotList->Count();
-       for(int i = 0 ; i<nCount; i++)
-       {
-               CPDF_Annot* pAnnot = m_pAnnotList->GetAt(i);
-               if(pAnnot->GetSubType() == "Widget")
-               {
-                       CFX_FloatRect annotRect;
-                       pAnnot->GetRect(annotRect);
-                       if(annotRect.Contains(pageX, pageY))
-                               return pAnnot;
-               }
-       }
-       return NULL;
-}
-
-CPDFSDK_Annot* CPDFSDK_PageView::GetFXAnnotAtPoint(FX_FLOAT pageX, FX_FLOAT pageY)
-{
-
-       CPDFSDK_AnnotIterator annotIterator(this, FALSE);
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-       CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
-       CPDFSDK_Annot* pSDKAnnot = NULL;
-       int index = -1;
-       while((pSDKAnnot = annotIterator.Next(index)))
-       {
-               CPDF_Rect rc = pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
-               if(rc.Contains(pageX, pageY))
-                       return pSDKAnnot;
-       }
-
-       return NULL;
-}
-
-CPDFSDK_Annot* CPDFSDK_PageView::GetFXWidgetAtPoint(FX_FLOAT pageX, FX_FLOAT pageY)
-{
-
-       CPDFSDK_AnnotIterator annotIterator(this, FALSE);
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-       CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
-       CPDFSDK_Annot* pSDKAnnot = NULL;
-       int index = -1;
-       while((pSDKAnnot = annotIterator.Next(index)))
-       {
-               if(pSDKAnnot->GetType() == "Widget")
-               {       
-                       pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
-                       CPDF_Point point(pageX, pageY);
-                       if (pAnnotMgr->Annot_OnHitTest(this, pSDKAnnot, point))
-//                     if(rc.Contains(pageX, pageY))
-                               return pSDKAnnot;
-               }
-       }
-       
-       return NULL;
-}
-
-
-FX_BOOL CPDFSDK_PageView::Annot_HasAppearance(CPDF_Annot* pAnnot)
-{
-       CPDF_Dictionary* pAnnotDic = pAnnot->GetAnnotDict();
-       if(pAnnotDic)
-               return  pAnnotDic->KeyExist("AS");
-       return FALSE;
-}
-
-CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(CPDF_Annot * pPDFAnnot)
-{
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-       ASSERT(pEnv);
-       CPDFSDK_AnnotHandlerMgr * pAnnotHandler= pEnv->GetAnnotHandlerMgr();    
-       
-       CPDFSDK_Annot* pSDKAnnot =NULL;
-       
-       if(pAnnotHandler)
-       {
-               pSDKAnnot = pAnnotHandler->NewAnnot(pPDFAnnot, this);
-       }
-       if(!pSDKAnnot)   
-               return NULL;
-
-       m_fxAnnotArray.Add(pSDKAnnot);  
-               
-       if(pAnnotHandler)
-       {                                
-               pAnnotHandler->Annot_OnCreate(pSDKAnnot);
-               
-       }
-
-        return pSDKAnnot;
-}
-
-CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(CPDF_Dictionary * pDict)
-{
-       if(pDict)  
-               return this->AddAnnot(pDict->GetString("Subtype"),pDict);
-        return NULL;
-}
-
-CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(FX_LPCSTR lpSubType,CPDF_Dictionary * pDict)
-{
-       return NULL;
-}
-
-FX_BOOL  CPDFSDK_PageView::DeleteAnnot(CPDFSDK_Annot* pAnnot)
-{
-       return FALSE;
-}
-
-CPDF_Document* CPDFSDK_PageView::GetPDFDocument()
-{
-       if(m_page)
-       {
-               return m_page->m_pDocument;
-       }
-       return NULL;
-}
-
-int    CPDFSDK_PageView::CountAnnots()
-{
-       return m_pAnnotList->Count();
-}
-
-CPDFSDK_Annot* CPDFSDK_PageView::GetAnnot(int nIndex)
-{
-       int nCount = m_fxAnnotArray.GetSize();
-       if ( nIndex < 0 || nIndex >= nCount )
-       {
-               return NULL;
-       }
-
-       return (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(nIndex);
-}
-
-CPDFSDK_Annot* CPDFSDK_PageView::GetAnnotByDict(CPDF_Dictionary * pDict)
-{
-       int nCount = m_fxAnnotArray.GetSize();
-       for(int i=0; i<nCount; i++)
-       {
-               CPDFSDK_Annot* pAnnot = (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(i);
-               if (pDict == pAnnot->GetPDFAnnot()->GetAnnotDict())
-                       return pAnnot;
-       }
-       return NULL;
-}
-
-FX_BOOL CPDFSDK_PageView::OnLButtonDown(const CPDF_Point & point, FX_UINT nFlag)
-{
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-       ASSERT(pEnv);
-       CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
-       if(!pFXAnnot)
-       {
-               KillFocusAnnot(nFlag);
-       }
-       else
-       {
-               CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-               ASSERT(pAnnotHandlerMgr);
-
-               FX_BOOL bRet = pAnnotHandlerMgr->Annot_OnLButtonDown(this, pFXAnnot, nFlag,point);
-               if(bRet)
-               {
-                       SetFocusAnnot(pFXAnnot);
-               }
-               return bRet;
-       }
-       return FALSE;
-}
-
-
-FX_BOOL CPDFSDK_PageView::OnLButtonUp(const CPDF_Point & point, FX_UINT nFlag)
-{
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-       ASSERT(pEnv);
-       CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-       ASSERT(pAnnotHandlerMgr);
-       CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
-       CPDFSDK_Annot* pFocusAnnot = GetFocusAnnot();
-       FX_BOOL bRet  = FALSE;
-       if(pFocusAnnot && pFocusAnnot != pFXAnnot)
-       {
-               //Last focus Annot gets a chance to handle the event.
-               bRet = pAnnotHandlerMgr->Annot_OnLButtonUp(this, pFocusAnnot, nFlag,point);
-       }
-       if(pFXAnnot && !bRet)
-       {
-               bRet = pAnnotHandlerMgr->Annot_OnLButtonUp(this, pFXAnnot, nFlag,point);
-               return bRet;
-       }
-       return bRet;
-}
-
-FX_BOOL CPDFSDK_PageView::OnMouseMove(const CPDF_Point & point, int nFlag)
-{
-
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-       CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-       ASSERT(pAnnotHandlerMgr);
-       if(CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y))
-       {
-               if(m_CaptureWidget && m_CaptureWidget != pFXAnnot)
-               {
-                       m_bExitWidget = TRUE;
-                       m_bEnterWidget = FALSE;
-                       pAnnotHandlerMgr->Annot_OnMouseExit(this, m_CaptureWidget, nFlag);
-               }
-               m_CaptureWidget = (CPDFSDK_Widget*)pFXAnnot;
-               m_bOnWidget = TRUE;
-               if(!m_bEnterWidget)
-               {
-                       m_bEnterWidget = TRUE;
-                       m_bExitWidget = FALSE;
-                       pAnnotHandlerMgr->Annot_OnMouseEnter(this, pFXAnnot,nFlag);
-               }
-               pAnnotHandlerMgr->Annot_OnMouseMove(this, pFXAnnot, nFlag, point);
-               return TRUE;
-       }
-       else
-       {
-               if(m_bOnWidget)
-               {       
-                       m_bOnWidget = FALSE;
-                       m_bExitWidget = TRUE;
-                       m_bEnterWidget = FALSE;
-                       if(m_CaptureWidget)
-                       {
-                               pAnnotHandlerMgr->Annot_OnMouseExit(this, m_CaptureWidget, nFlag);
-                               m_CaptureWidget = NULL;
-                       }
-               }
-               return FALSE;
-       }
-       
-       return FALSE;;
-}
-
-FX_BOOL CPDFSDK_PageView::OnMouseWheel(double deltaX, double deltaY,const CPDF_Point& point, int nFlag)
-{
-       if(CPDFSDK_Annot* pAnnot = GetFXWidgetAtPoint(point.x, point.y))
-       {
-               CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-               CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-               ASSERT(pAnnotHandlerMgr);
-               return pAnnotHandlerMgr->Annot_OnMouseWheel(this, pAnnot, nFlag, (int)deltaY, point);
-       }
-       return FALSE;
-
-}
-
-FX_BOOL CPDFSDK_PageView::OnChar(int nChar, FX_UINT nFlag)
-{
-       if(CPDFSDK_Annot* pAnnot = GetFocusAnnot())
-       {
-               CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-               CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-               ASSERT(pAnnotHandlerMgr);
-               return pAnnotHandlerMgr->Annot_OnChar(pAnnot, nChar, nFlag);
-       }
-
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_PageView::OnKeyDown(int nKeyCode, int nFlag)
-{
-       if(CPDFSDK_Annot* pAnnot = GetFocusAnnot())
-       {
-               CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-               CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-               ASSERT(pAnnotHandlerMgr);
-               return pAnnotHandlerMgr->Annot_OnKeyDown(pAnnot, nKeyCode, nFlag);
-       }
-       return FALSE;
-}
-
-FX_BOOL CPDFSDK_PageView::OnKeyUp(int nKeyCode, int nFlag)
-{
-//     if(CPDFSDK_Annot* pAnnot = GetFocusAnnot())
-//     {
-//             CFFL_IFormFiller* pIFormFiller = g_pFormFillApp->GetIFormFiller();
-//             return pIFormFiller->OnKeyUp(pAnnot, nKeyCode, nFlag);
-//     }
-       return FALSE;
-}
-
-extern void CheckUnSupportAnnot(CPDF_Document * pDoc, CPDF_Annot* pPDFAnnot);
-
-void CPDFSDK_PageView::LoadFXAnnots()
-{
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-
-       FX_BOOL enableAPUpdate = CPDF_InterForm::UpdatingAPEnabled();
-       //Disable the default AP construction.
-       CPDF_InterForm::EnableUpdateAP(FALSE);
-       m_pAnnotList = new CPDF_AnnotList(m_page);
-       CPDF_InterForm::EnableUpdateAP(enableAPUpdate);
-       int nCount = m_pAnnotList->Count();
-        SetLock(TRUE);
-       for(int i=0; i<nCount; i++)
-       {
-               CPDF_Annot* pPDFAnnot = m_pAnnotList->GetAt(i);
-               CPDF_Document * pDoc = this->GetPDFDocument();
-               
-               CheckUnSupportAnnot(pDoc, pPDFAnnot);
-
-               CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
-               ASSERT(pAnnotHandlerMgr != NULL);
-
-               if(pAnnotHandlerMgr)
-               {
-                       CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pPDFAnnot, this);
-                       if(!pAnnot)
-                               continue;
-                       m_fxAnnotArray.Add(pAnnot);
-
-                       pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
-               }
-
-       }
-        SetLock(FALSE);
-}
-
-void   CPDFSDK_PageView::UpdateRects(CFX_RectArray& rects)
-{
-       for(int i=0; i<rects.GetSize(); i++)
-       {
-               CPDF_Rect rc = rects.GetAt(i);
-               CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
-               pEnv->FFI_Invalidate(m_page, rc.left, rc.top, rc.right, rc.bottom);
-       }
-}
-
-void CPDFSDK_PageView::UpdateView(CPDFSDK_Annot* pAnnot)
-{
-       CPDF_Rect rcWindow;
-
-       CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();        
-//     CPDFSDK_AnnotHandlerMgr* pAnnotHandler = pEnv->GetAnnotHandlerMgr();
-       
-       rcWindow = pAnnot->GetRect();//pAnnotHandler->Annot_OnGetViewBBox(this,pAnnot); 
-       pEnv->FFI_Invalidate(m_page, rcWindow.left, rcWindow.top, rcWindow.right, rcWindow.bottom);
-
-}
-
-int CPDFSDK_PageView::GetPageIndex()
-{
-       if(m_page)
-       {
-               CPDF_Dictionary* pDic = m_page->m_pFormDict;
-               CPDF_Document* pDoc = m_pSDKDoc->GetDocument();
-               if(pDoc && pDic)
-               {
-                       return pDoc->GetPageIndex(pDic->GetObjNum());
-               }
-       }
-       return -1;
-}
-
-FX_BOOL        CPDFSDK_PageView::IsValidAnnot(FX_LPVOID p)
-{
-       if (p == NULL) return FALSE;
-       int iCount = m_pAnnotList->Count();
-       for (int i = 0; i < iCount; i++)
-       {
-               if (m_pAnnotList->GetAt(i) == p)
-                       return TRUE;
-       }
-       return FALSE;
-}
-
-
-CPDFSDK_Annot* CPDFSDK_PageView::GetFocusAnnot()
-{
-       CPDFSDK_Annot* pFocusAnnot = m_pSDKDoc->GetFocusAnnot();
-       if(!pFocusAnnot)
-               return NULL;
-       
-       for(int i=0; i<m_fxAnnotArray.GetSize(); i++)
-       {
-               CPDFSDK_Annot* pAnnot = (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(i);
-               if(pAnnot == pFocusAnnot)
-                       return pAnnot;
-       }
-       return NULL;
+        if (!m_pFocusAnnot)
+          return TRUE;
+      } else {
+        m_pFocusAnnot = pFocusAnnot;
+      }
+    }
+  }
+  return FALSE;
+}
+
+void CPDFSDK_Document::OnCloseDocument() {
+  KillFocusAnnot();
+}
+
+FX_BOOL CPDFSDK_Document::GetPermissions(int nFlag) {
+  FX_DWORD dwPermissions = m_pDoc->GetUserPermissions();
+  return dwPermissions & nFlag;
+}
+
+IFXJS_Runtime* CPDFSDK_Document::GetJsRuntime() {
+  ASSERT(m_pEnv != NULL);
+  return m_pEnv->GetJSRuntime();
+}
+
+CFX_WideString CPDFSDK_Document::GetPath() {
+  ASSERT(m_pEnv != NULL);
+  return m_pEnv->JS_docGetFilePath();
+}
+
+CPDFSDK_PageView::CPDFSDK_PageView(CPDFSDK_Document* pSDKDoc, CPDF_Page* page)
+    : m_page(page), m_pSDKDoc(pSDKDoc) {
+  CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
+  if (pInterForm) {
+    CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
+    pPDFInterForm->FixPageFields(page);
+  }
+  m_page->SetPrivateData((void*)m_page, (void*)this, NULL);
+  m_fxAnnotArray.RemoveAll();
+
+  m_bEnterWidget = FALSE;
+  m_bExitWidget = FALSE;
+  m_bOnWidget = FALSE;
+  m_CaptureWidget = NULL;
+  m_bValid = FALSE;
+  m_bLocked = FALSE;
+  m_bTakeOverPage = FALSE;
+}
+
+CPDFSDK_PageView::~CPDFSDK_PageView() {
+  // if there is a focused annot on the page, we should kill the focus first.
+  if (CPDFSDK_Annot* focusedAnnot = m_pSDKDoc->GetFocusAnnot()) {
+    for (int i = 0, count = m_fxAnnotArray.GetSize(); i < count; i++) {
+      CPDFSDK_Annot* pAnnot = (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(i);
+      if (pAnnot == focusedAnnot) {
+        KillFocusAnnot();
+        break;
+      }
+    }
+  }
+
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+  ASSERT(pAnnotHandlerMgr);
+  for (int i = 0, count = m_fxAnnotArray.GetSize(); i < count; i++) {
+    CPDFSDK_Annot* pAnnot = (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(i);
+    pAnnotHandlerMgr->ReleaseAnnot(pAnnot);
+  }
+  m_fxAnnotArray.RemoveAll();
+
+  delete m_pAnnotList;
+  m_pAnnotList = NULL;
+
+  m_page->RemovePrivateData((void*)m_page);
+  if (m_bTakeOverPage) {
+    delete m_page;
+  }
+}
+
+void CPDFSDK_PageView::PageView_OnDraw(CFX_RenderDevice* pDevice,
+                                       CPDF_Matrix* pUser2Device,
+                                       CPDF_RenderOptions* pOptions) {
+  m_curMatrix = *pUser2Device;
+
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotIterator annotIterator(this, TRUE);
+  CPDFSDK_Annot* pSDKAnnot = nullptr;
+  int index = -1;
+  while ((pSDKAnnot = annotIterator.Next(index))) {
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    ASSERT(pAnnotHandlerMgr);
+    pAnnotHandlerMgr->Annot_OnDraw(this, pSDKAnnot, pDevice, pUser2Device, 0);
+  }
+}
+
+CPDF_Annot* CPDFSDK_PageView::GetPDFAnnotAtPoint(FX_FLOAT pageX,
+                                                 FX_FLOAT pageY) {
+  int nCount = m_pAnnotList->Count();
+  for (int i = 0; i < nCount; i++) {
+    CPDF_Annot* pAnnot = m_pAnnotList->GetAt(i);
+    CFX_FloatRect annotRect;
+    pAnnot->GetRect(annotRect);
+    if (annotRect.Contains(pageX, pageY))
+      return pAnnot;
+  }
+  return NULL;
+}
+
+CPDF_Annot* CPDFSDK_PageView::GetPDFWidgetAtPoint(FX_FLOAT pageX,
+                                                  FX_FLOAT pageY) {
+  int nCount = m_pAnnotList->Count();
+  for (int i = 0; i < nCount; i++) {
+    CPDF_Annot* pAnnot = m_pAnnotList->GetAt(i);
+    if (pAnnot->GetSubType() == "Widget") {
+      CFX_FloatRect annotRect;
+      pAnnot->GetRect(annotRect);
+      if (annotRect.Contains(pageX, pageY))
+        return pAnnot;
+    }
+  }
+  return NULL;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetFXAnnotAtPoint(FX_FLOAT pageX,
+                                                   FX_FLOAT pageY) {
+  CPDFSDK_AnnotIterator annotIterator(this, FALSE);
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
+  CPDFSDK_Annot* pSDKAnnot = NULL;
+  int index = -1;
+  while ((pSDKAnnot = annotIterator.Next(index))) {
+    CPDF_Rect rc = pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
+    if (rc.Contains(pageX, pageY))
+      return pSDKAnnot;
+  }
+
+  return NULL;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetFXWidgetAtPoint(FX_FLOAT pageX,
+                                                    FX_FLOAT pageY) {
+  CPDFSDK_AnnotIterator annotIterator(this, FALSE);
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
+  CPDFSDK_Annot* pSDKAnnot = NULL;
+  int index = -1;
+  while ((pSDKAnnot = annotIterator.Next(index))) {
+    if (pSDKAnnot->GetType() == "Widget") {
+      pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
+      CPDF_Point point(pageX, pageY);
+      if (pAnnotMgr->Annot_OnHitTest(this, pSDKAnnot, point))
+        return pSDKAnnot;
+    }
+  }
+
+  return NULL;
+}
+
+FX_BOOL CPDFSDK_PageView::Annot_HasAppearance(CPDF_Annot* pAnnot) {
+  CPDF_Dictionary* pAnnotDic = pAnnot->GetAnnotDict();
+  if (pAnnotDic)
+    return pAnnotDic->KeyExist("AS");
+  return FALSE;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(CPDF_Annot* pPDFAnnot) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  ASSERT(pEnv);
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandler = pEnv->GetAnnotHandlerMgr();
+
+  CPDFSDK_Annot* pSDKAnnot = NULL;
+
+  if (pAnnotHandler) {
+    pSDKAnnot = pAnnotHandler->NewAnnot(pPDFAnnot, this);
+  }
+  if (!pSDKAnnot)
+    return NULL;
+
+  m_fxAnnotArray.Add(pSDKAnnot);
+
+  if (pAnnotHandler) {
+    pAnnotHandler->Annot_OnCreate(pSDKAnnot);
+  }
+
+  return pSDKAnnot;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(CPDF_Dictionary* pDict) {
+  return pDict ? AddAnnot(pDict->GetString("Subtype"), pDict) : nullptr;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(const FX_CHAR* lpSubType,
+                                          CPDF_Dictionary* pDict) {
+  return NULL;
+}
+
+FX_BOOL CPDFSDK_PageView::DeleteAnnot(CPDFSDK_Annot* pAnnot) {
+  return FALSE;
+}
+
+CPDF_Document* CPDFSDK_PageView::GetPDFDocument() {
+  if (m_page) {
+    return m_page->m_pDocument;
+  }
+  return NULL;
+}
+
+int CPDFSDK_PageView::CountAnnots() {
+  return m_pAnnotList->Count();
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetAnnot(int nIndex) {
+  int nCount = m_fxAnnotArray.GetSize();
+  if (nIndex < 0 || nIndex >= nCount) {
+    return NULL;
+  }
+
+  return (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(nIndex);
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetAnnotByDict(CPDF_Dictionary* pDict) {
+  int nCount = m_fxAnnotArray.GetSize();
+  for (int i = 0; i < nCount; i++) {
+    CPDFSDK_Annot* pAnnot = (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(i);
+    if (pDict == pAnnot->GetPDFAnnot()->GetAnnotDict())
+      return pAnnot;
+  }
+  return NULL;
+}
+
+FX_BOOL CPDFSDK_PageView::OnLButtonDown(const CPDF_Point& point,
+                                        FX_UINT nFlag) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  ASSERT(pEnv);
+  CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
+  if (!pFXAnnot) {
+    KillFocusAnnot(nFlag);
+  } else {
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    ASSERT(pAnnotHandlerMgr);
+
+    FX_BOOL bRet =
+        pAnnotHandlerMgr->Annot_OnLButtonDown(this, pFXAnnot, nFlag, point);
+    if (bRet) {
+      SetFocusAnnot(pFXAnnot);
+    }
+    return bRet;
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_PageView::OnLButtonUp(const CPDF_Point& point, FX_UINT nFlag) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  ASSERT(pEnv);
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+  ASSERT(pAnnotHandlerMgr);
+  CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
+  CPDFSDK_Annot* pFocusAnnot = GetFocusAnnot();
+  FX_BOOL bRet = FALSE;
+  if (pFocusAnnot && pFocusAnnot != pFXAnnot) {
+    // Last focus Annot gets a chance to handle the event.
+    bRet = pAnnotHandlerMgr->Annot_OnLButtonUp(this, pFocusAnnot, nFlag, point);
+  }
+  if (pFXAnnot && !bRet) {
+    bRet = pAnnotHandlerMgr->Annot_OnLButtonUp(this, pFXAnnot, nFlag, point);
+    return bRet;
+  }
+  return bRet;
+}
+
+FX_BOOL CPDFSDK_PageView::OnMouseMove(const CPDF_Point& point, int nFlag) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+  ASSERT(pAnnotHandlerMgr);
+  if (CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y)) {
+    if (m_CaptureWidget && m_CaptureWidget != pFXAnnot) {
+      m_bExitWidget = TRUE;
+      m_bEnterWidget = FALSE;
+      pAnnotHandlerMgr->Annot_OnMouseExit(this, m_CaptureWidget, nFlag);
+    }
+    m_CaptureWidget = (CPDFSDK_Widget*)pFXAnnot;
+    m_bOnWidget = TRUE;
+    if (!m_bEnterWidget) {
+      m_bEnterWidget = TRUE;
+      m_bExitWidget = FALSE;
+      pAnnotHandlerMgr->Annot_OnMouseEnter(this, pFXAnnot, nFlag);
+    }
+    pAnnotHandlerMgr->Annot_OnMouseMove(this, pFXAnnot, nFlag, point);
+    return TRUE;
+  }
+  if (m_bOnWidget) {
+    m_bOnWidget = FALSE;
+    m_bExitWidget = TRUE;
+    m_bEnterWidget = FALSE;
+    if (m_CaptureWidget) {
+      pAnnotHandlerMgr->Annot_OnMouseExit(this, m_CaptureWidget, nFlag);
+      m_CaptureWidget = NULL;
+    }
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_PageView::OnMouseWheel(double deltaX,
+                                       double deltaY,
+                                       const CPDF_Point& point,
+                                       int nFlag) {
+  if (CPDFSDK_Annot* pAnnot = GetFXWidgetAtPoint(point.x, point.y)) {
+    CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    ASSERT(pAnnotHandlerMgr);
+    return pAnnotHandlerMgr->Annot_OnMouseWheel(this, pAnnot, nFlag,
+                                                (int)deltaY, point);
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_PageView::OnChar(int nChar, FX_UINT nFlag) {
+  if (CPDFSDK_Annot* pAnnot = GetFocusAnnot()) {
+    CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    ASSERT(pAnnotHandlerMgr);
+    return pAnnotHandlerMgr->Annot_OnChar(pAnnot, nChar, nFlag);
+  }
+
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_PageView::OnKeyDown(int nKeyCode, int nFlag) {
+  if (CPDFSDK_Annot* pAnnot = GetFocusAnnot()) {
+    CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    ASSERT(pAnnotHandlerMgr);
+    return pAnnotHandlerMgr->Annot_OnKeyDown(pAnnot, nKeyCode, nFlag);
+  }
+  return FALSE;
+}
+
+FX_BOOL CPDFSDK_PageView::OnKeyUp(int nKeyCode, int nFlag) {
+  return FALSE;
+}
+
+void CPDFSDK_PageView::LoadFXAnnots() {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+
+  FX_BOOL enableAPUpdate = CPDF_InterForm::UpdatingAPEnabled();
+  // Disable the default AP construction.
+  CPDF_InterForm::EnableUpdateAP(FALSE);
+  m_pAnnotList = new CPDF_AnnotList(m_page);
+  CPDF_InterForm::EnableUpdateAP(enableAPUpdate);
+  int nCount = m_pAnnotList->Count();
+  SetLock(TRUE);
+  for (int i = 0; i < nCount; i++) {
+    CPDF_Annot* pPDFAnnot = m_pAnnotList->GetAt(i);
+    CPDF_Document* pDoc = GetPDFDocument();
+
+    CheckUnSupportAnnot(pDoc, pPDFAnnot);
+
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    ASSERT(pAnnotHandlerMgr != NULL);
+
+    if (pAnnotHandlerMgr) {
+      CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pPDFAnnot, this);
+      if (!pAnnot)
+        continue;
+      m_fxAnnotArray.Add(pAnnot);
+
+      pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
+    }
+  }
+  SetLock(FALSE);
+}
+
+void CPDFSDK_PageView::UpdateRects(CFX_RectArray& rects) {
+  for (int i = 0; i < rects.GetSize(); i++) {
+    CPDF_Rect rc = rects.GetAt(i);
+    CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+    pEnv->FFI_Invalidate(m_page, rc.left, rc.top, rc.right, rc.bottom);
+  }
+}
+
+void CPDFSDK_PageView::UpdateView(CPDFSDK_Annot* pAnnot) {
+  CPDF_Rect rcWindow = pAnnot->GetRect();
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  pEnv->FFI_Invalidate(m_page, rcWindow.left, rcWindow.top, rcWindow.right,
+                       rcWindow.bottom);
+}
+
+int CPDFSDK_PageView::GetPageIndex() {
+  if (m_page) {
+    CPDF_Dictionary* pDic = m_page->m_pFormDict;
+    CPDF_Document* pDoc = m_pSDKDoc->GetDocument();
+    if (pDoc && pDic) {
+      return pDoc->GetPageIndex(pDic->GetObjNum());
+    }
+  }
+  return -1;
+}
+
+FX_BOOL CPDFSDK_PageView::IsValidAnnot(void* p) {
+  if (p == NULL)
+    return FALSE;
+  int iCount = m_pAnnotList->Count();
+  for (int i = 0; i < iCount; i++) {
+    if (m_pAnnotList->GetAt(i) == p)
+      return TRUE;
+  }
+  return FALSE;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetFocusAnnot() {
+  CPDFSDK_Annot* pFocusAnnot = m_pSDKDoc->GetFocusAnnot();
+  if (!pFocusAnnot)
+    return NULL;
+
+  for (int i = 0; i < m_fxAnnotArray.GetSize(); i++) {
+    CPDFSDK_Annot* pAnnot = (CPDFSDK_Annot*)m_fxAnnotArray.GetAt(i);
+    if (pAnnot == pFocusAnnot)
+      return pAnnot;
+  }
+  return NULL;
 }
-