Move fpdfsdk/src up to fpdfsdk/.

This CL moves the files in fpdfsdk/src/ up one level to fpdfsdk/ and fixes
up the include paths, include guards and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1799773002 .

1 files changed, 1201 insertions, 0 deletions

diff --git a/fpdfsdk/fsdk_mgr.cpp b/fpdfsdk/fsdk_mgr.cpp
new file mode 100644
index 0000000000..519aa06945
--- /dev/null
+++ b/fpdfsdk/fsdk_mgr.cpp
@@ -0,0 +1,1201 @@
+// 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 "fpdfsdk/include/fsdk_mgr.h"
+
+#include <algorithm>
+#include <memory>
+
+#include "core/include/fpdfapi/cpdf_array.h"
+#include "core/include/fpdfapi/cpdf_document.h"
+#include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
+#include "fpdfsdk/include/fsdk_define.h"
+#include "fpdfsdk/include/javascript/IJavaScript.h"
+#include "public/fpdf_ext.h"
+#include "third_party/base/stl_util.h"
+
+#ifdef PDF_ENABLE_XFA
+#include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h"
+#include "fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h"
+#include "fpdfsdk/include/fpdfxfa/fpdfxfa_page.h"
+#include "fpdfsdk/include/fpdfxfa/fpdfxfa_util.h"
+#include "xfa/include/fxgraphics/fx_graphics.h"
+#endif  // PDF_ENABLE_XFA
+
+#if _FX_OS_ == _FX_ANDROID_
+#include "time.h"
+#else
+#include <ctime>
+#endif
+
+namespace {
+
+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;
+}
+
+}  // namespace
+
+FPDF_WIDESTRING AsFPDFWideString(CFX_ByteString* bsUTF16LE) {
+  return reinterpret_cast<FPDF_WIDESTRING>(
+      bsUTF16LE->GetBuffer(bsUTF16LE->GetLength()));
+}
+
+class CFX_SystemHandler : public IFX_SystemHandler {
+ public:
+  explicit 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, CFX_FloatRect& rect) override;
+  FX_BOOL IsSelectionImplemented() override;
+  CFX_WideString GetClipboardText(FX_HWND hWnd) override { return L""; }
+  FX_BOOL SetClipboardText(FX_HWND hWnd, CFX_WideString str) 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 str) 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(int32_t nCursorType) {
+  m_pEnv->FFI_SetCursor(nCursorType);
+}
+
+void CFX_SystemHandler::InvalidateRect(FX_HWND hWnd, FX_RECT rect) {
+  CPDFSDK_Annot* pSDKAnnot = (CPDFSDK_Annot*)hWnd;
+  CPDFSDK_PageView* pPageView = pSDKAnnot->GetPageView();
+  UnderlyingPageType* pPage = pSDKAnnot->GetUnderlyingPage();
+  if (!pPage || !pPageView)
+    return;
+  CFX_Matrix page2device;
+  pPageView->GetCurrentMatrix(page2device);
+  CFX_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);
+  CFX_FloatRect 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,
+                                           CFX_FloatRect& rect) {
+  CFFL_FormFiller* pFFL = (CFFL_FormFiller*)pFormFiller;
+  if (pFFL) {
+    CFX_FloatPoint leftbottom = CFX_FloatPoint(rect.left, rect.bottom);
+    CFX_FloatPoint righttop = CFX_FloatPoint(rect.right, rect.top);
+    CFX_FloatPoint ptA = pFFL->PWLtoFFL(leftbottom);
+    CFX_FloatPoint ptB = pFFL->PWLtoFFL(righttop);
+    CPDFSDK_Annot* pAnnot = pFFL->GetSDKAnnot();
+    UnderlyingPageType* pPage = pAnnot->GetUnderlyingPage();
+    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)
+    return FALSE;
+
+  CFX_FontMapper* pFontMapper = pFontMgr->GetBuiltinMapper();
+  if (!pFontMapper)
+    return FALSE;
+
+  if (pFontMapper->m_InstalledTTFonts.empty())
+    pFontMapper->LoadInstalledFonts();
+
+  for (const auto& font : pFontMapper->m_InstalledTTFonts) {
+    if (font.Compare(sFontFaceName))
+      return TRUE;
+  }
+
+  return FALSE;
+}
+
+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();
+}
+
+CPDFDoc_Environment::CPDFDoc_Environment(UnderlyingDocumentType* pDoc,
+                                         FPDF_FORMFILLINFO* pFFinfo)
+    : m_pInfo(pFFinfo), m_pSDKDoc(NULL), m_pUnderlyingDoc(pDoc) {
+  m_pSysHandler.reset(new CFX_SystemHandler(this));
+}
+
+CPDFDoc_Environment::~CPDFDoc_Environment() {
+#ifdef PDF_ENABLE_XFA
+  CPDFXFA_App* pProvider = CPDFXFA_App::GetInstance();
+  if (pProvider->m_pEnvList.GetSize() == 0)
+    pProvider->SetJavaScriptInitialized(FALSE);
+#endif  // PDF_ENABLE_XFA
+}
+
+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) {
+    return -1;
+  }
+  CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
+  CFX_ByteString bsTitle = CFX_WideString(Title).UTF16LE_Encode();
+  return m_pInfo->m_pJsPlatform->app_alert(
+      m_pInfo->m_pJsPlatform, AsFPDFWideString(&bsMsg),
+      AsFPDFWideString(&bsTitle), Type, Icon);
+}
+
+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) {
+    return -1;
+  }
+  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();
+  return m_pInfo->m_pJsPlatform->app_response(
+      m_pInfo->m_pJsPlatform, AsFPDFWideString(&bsQuestion),
+      AsFPDFWideString(&bsTitle), AsFPDFWideString(&bsDefault),
+      AsFPDFWideString(&bsLabel), bPassword, response, length);
+}
+
+void CPDFDoc_Environment::JS_appBeep(int nType) {
+  if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
+      !m_pInfo->m_pJsPlatform->app_beep) {
+    return;
+  }
+  m_pInfo->m_pJsPlatform->app_beep(m_pInfo->m_pJsPlatform, nType);
+}
+
+CFX_WideString CPDFDoc_Environment::JS_fieldBrowse() {
+  if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
+      !m_pInfo->m_pJsPlatform->Field_browse) {
+    return CFX_WideString();
+  }
+  const int nRequiredLen =
+      m_pInfo->m_pJsPlatform->Field_browse(m_pInfo->m_pJsPlatform, nullptr, 0);
+  if (nRequiredLen <= 0)
+    return CFX_WideString();
+
+  std::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 CFX_WideString();
+
+  return CFX_WideString::FromLocal(CFX_ByteString(pBuff.get(), nActualLen));
+}
+
+CFX_WideString CPDFDoc_Environment::JS_docGetFilePath() {
+  if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
+      !m_pInfo->m_pJsPlatform->Doc_getFilePath) {
+    return CFX_WideString();
+  }
+  const int nRequiredLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
+      m_pInfo->m_pJsPlatform, nullptr, 0);
+  if (nRequiredLen <= 0)
+    return CFX_WideString();
+
+  std::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 CFX_WideString();
+
+  return CFX_WideString::FromLocal(CFX_ByteString(pBuff.get(), nActualLen));
+}
+
+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) {
+    return;
+  }
+  CFX_ByteString bsDestination = CFX_WideString(URL).UTF16LE_Encode();
+  m_pInfo->m_pJsPlatform->Doc_submitForm(m_pInfo->m_pJsPlatform, formData,
+                                         length,
+                                         AsFPDFWideString(&bsDestination));
+}
+
+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) {
+    return;
+  }
+  CFX_ByteString bsTo = CFX_WideString(To).UTF16LE_Encode();
+  CFX_ByteString bsSubject = CFX_WideString(Subject).UTF16LE_Encode();
+  CFX_ByteString bsCC = CFX_WideString(CC).UTF16LE_Encode();
+  CFX_ByteString bsBcc = CFX_WideString(BCC).UTF16LE_Encode();
+  CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
+  m_pInfo->m_pJsPlatform->Doc_mail(
+      m_pInfo->m_pJsPlatform, mailData, length, bUI, AsFPDFWideString(&bsTo),
+      AsFPDFWideString(&bsSubject), AsFPDFWideString(&bsCC),
+      AsFPDFWideString(&bsBcc), AsFPDFWideString(&bsMsg));
+}
+
+void CPDFDoc_Environment::JS_docprint(FPDF_BOOL bUI,
+                                      int nStart,
+                                      int nEnd,
+                                      FPDF_BOOL bSilent,
+                                      FPDF_BOOL bShrinkToFit,
+                                      FPDF_BOOL bPrintAsImage,
+                                      FPDF_BOOL bReverse,
+                                      FPDF_BOOL bAnnotations) {
+  if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
+      !m_pInfo->m_pJsPlatform->Doc_print) {
+    return;
+  }
+  m_pInfo->m_pJsPlatform->Doc_print(m_pInfo->m_pJsPlatform, bUI, nStart, nEnd,
+                                    bSilent, bShrinkToFit, bPrintAsImage,
+                                    bReverse, bAnnotations);
+}
+
+void CPDFDoc_Environment::JS_docgotoPage(int nPageNum) {
+  if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
+      !m_pInfo->m_pJsPlatform->Doc_gotoPage) {
+    return;
+  }
+  m_pInfo->m_pJsPlatform->Doc_gotoPage(m_pInfo->m_pJsPlatform, nPageNum);
+}
+
+IJS_Runtime* CPDFDoc_Environment::GetJSRuntime() {
+  if (!IsJSInitiated())
+    return NULL;
+  if (!m_pJSRuntime)
+    m_pJSRuntime.reset(IJS_Runtime::Create(this));
+  return m_pJSRuntime.get();
+}
+
+CPDFSDK_AnnotHandlerMgr* CPDFDoc_Environment::GetAnnotHandlerMgr() {
+  if (!m_pAnnotHandlerMgr)
+    m_pAnnotHandlerMgr.reset(new CPDFSDK_AnnotHandlerMgr(this));
+  return m_pAnnotHandlerMgr.get();
+}
+
+CPDFSDK_ActionHandler* CPDFDoc_Environment::GetActionHander() {
+  if (!m_pActionHandler)
+    m_pActionHandler.reset(new CPDFSDK_ActionHandler());
+  return m_pActionHandler.get();
+}
+
+CFFL_IFormFiller* CPDFDoc_Environment::GetIFormFiller() {
+  if (!m_pIFormFiller)
+    m_pIFormFiller.reset(new CFFL_IFormFiller(this));
+  return m_pIFormFiller.get();
+}
+
+// static
+CPDFSDK_Document* CPDFSDK_Document::FromFPDFFormHandle(
+    FPDF_FORMHANDLE hHandle) {
+  CPDFDoc_Environment* pEnv = static_cast<CPDFDoc_Environment*>(hHandle);
+  return pEnv ? pEnv->GetSDKDocument() : nullptr;
+}
+
+CPDFSDK_Document::CPDFSDK_Document(UnderlyingDocumentType* pDoc,
+                                   CPDFDoc_Environment* pEnv)
+    : m_pDoc(pDoc),
+      m_pFocusAnnot(nullptr),
+      m_pEnv(pEnv),
+      m_bChangeMask(FALSE),
+      m_bBeingDestroyed(FALSE) {}
+
+CPDFSDK_Document::~CPDFSDK_Document() {
+  m_bBeingDestroyed = TRUE;
+
+  for (auto& it : m_pageMap)
+    it.second->KillFocusAnnotIfNeeded();
+
+  for (auto& it : m_pageMap)
+    delete it.second;
+  m_pageMap.clear();
+}
+
+CPDFSDK_PageView* CPDFSDK_Document::GetPageView(
+    UnderlyingPageType* pUnderlyingPage,
+    FX_BOOL ReNew) {
+  auto it = m_pageMap.find(pUnderlyingPage);
+  if (it != m_pageMap.end())
+    return it->second;
+
+  if (!ReNew)
+    return nullptr;
+
+  CPDFSDK_PageView* pPageView = new CPDFSDK_PageView(this, pUnderlyingPage);
+  m_pageMap[pUnderlyingPage] = pPageView;
+  // Delay to load all the annotations, to avoid endless loop.
+  pPageView->LoadFXAnnots();
+  return pPageView;
+}
+
+CPDFSDK_PageView* CPDFSDK_Document::GetCurrentView() {
+  UnderlyingPageType* pPage =
+      UnderlyingFromFPDFPage(m_pEnv->FFI_GetCurrentPage(m_pDoc));
+  return pPage ? GetPageView(pPage, TRUE) : nullptr;
+}
+
+CPDFSDK_PageView* CPDFSDK_Document::GetPageView(int nIndex) {
+  UnderlyingPageType* pTempPage =
+      UnderlyingFromFPDFPage(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 = GetPDFDocument();
+  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 = GetPDFDocument()->GetRoot();
+  if (!pRoot)
+    return FALSE;
+
+  CPDF_Object* pOpenAction = pRoot->GetDictBy("OpenAction");
+  if (!pOpenAction)
+    pOpenAction = pRoot->GetArrayBy("OpenAction");
+
+  if (!pOpenAction)
+    return FALSE;
+
+  if (pOpenAction->IsArray())
+    return TRUE;
+
+  if (CPDF_Dictionary* pDict = pOpenAction->AsDictionary()) {
+    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.reset(new CPDF_OCContext(GetPDFDocument()));
+  return m_pOccontent.get();
+}
+
+void CPDFSDK_Document::RemovePageView(UnderlyingPageType* pUnderlyingPage) {
+  auto it = m_pageMap.find(pUnderlyingPage);
+  if (it == m_pageMap.end())
+    return;
+
+  CPDFSDK_PageView* pPageView = it->second;
+  if (pPageView->IsLocked())
+    return;
+
+  pPageView->KillFocusAnnotIfNeeded();
+  delete pPageView;
+  m_pageMap.erase(it);
+}
+
+UnderlyingPageType* CPDFSDK_Document::GetPage(int nIndex) {
+  return UnderlyingFromFPDFPage(m_pEnv->FFI_GetPage(m_pDoc, nIndex));
+}
+
+CPDFSDK_InterForm* CPDFSDK_Document::GetInterForm() {
+  if (!m_pInterForm)
+    m_pInterForm.reset(new CPDFSDK_InterForm(this));
+  return m_pInterForm.get();
+}
+
+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_bBeingDestroyed)
+    return FALSE;
+
+  if (m_pFocusAnnot == pAnnot)
+    return TRUE;
+
+  if (m_pFocusAnnot) {
+    if (!KillFocusAnnot(nFlag))
+      return FALSE;
+  }
+
+  if (!pAnnot)
+    return FALSE;
+
+#ifdef PDF_ENABLE_XFA
+  CPDFSDK_Annot* pLastFocusAnnot = m_pFocusAnnot;
+#endif  // PDF_ENABLE_XFA
+  CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
+  if (pPageView && pPageView->IsValid()) {
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandler = m_pEnv->GetAnnotHandlerMgr();
+    if (!m_pFocusAnnot) {
+#ifdef PDF_ENABLE_XFA
+      if (!pAnnotHandler->Annot_OnChangeFocus(pAnnot, pLastFocusAnnot))
+        return FALSE;
+#endif  // PDF_ENABLE_XFA
+      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();
+    CPDFSDK_Annot* pFocusAnnot = m_pFocusAnnot;
+    m_pFocusAnnot = nullptr;
+
+#ifdef PDF_ENABLE_XFA
+    if (!pAnnotHandler->Annot_OnChangeFocus(nullptr, pFocusAnnot))
+      return FALSE;
+#endif  // PDF_ENABLE_XFA
+
+    if (pAnnotHandler->Annot_OnKillFocus(pFocusAnnot, nFlag)) {
+      if (pFocusAnnot->GetType() == "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;
+}
+
+void CPDFSDK_Document::OnCloseDocument() {
+  KillFocusAnnot();
+}
+
+FX_BOOL CPDFSDK_Document::GetPermissions(int nFlag) {
+  return GetPDFDocument()->GetUserPermissions() & nFlag;
+}
+
+IJS_Runtime* CPDFSDK_Document::GetJsRuntime() {
+  return m_pEnv->GetJSRuntime();
+}
+
+CFX_WideString CPDFSDK_Document::GetPath() {
+  return m_pEnv->JS_docGetFilePath();
+}
+
+CPDFSDK_PageView::CPDFSDK_PageView(CPDFSDK_Document* pSDKDoc,
+                                   UnderlyingPageType* page)
+    : m_page(page),
+      m_pSDKDoc(pSDKDoc),
+      m_CaptureWidget(nullptr),
+#ifndef PDF_ENABLE_XFA
+      m_bTakeOverPage(FALSE),
+#endif  // PDF_ENABLE_XFA
+      m_bEnterWidget(FALSE),
+      m_bExitWidget(FALSE),
+      m_bOnWidget(FALSE),
+      m_bValid(FALSE),
+      m_bLocked(FALSE) {
+  CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
+  if (pInterForm) {
+    CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
+#ifdef PDF_ENABLE_XFA
+    if (page->GetPDFPage())
+      pPDFInterForm->FixPageFields(page->GetPDFPage());
+#else   // PDF_ENABLE_XFA
+    pPDFInterForm->FixPageFields(page);
+#endif  // PDF_ENABLE_XFA
+  }
+#ifndef PDF_ENABLE_XFA
+  m_page->SetPrivateData((void*)m_page, (void*)this, nullptr);
+#endif  // PDF_ENABLE_XFA
+}
+
+CPDFSDK_PageView::~CPDFSDK_PageView() {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+  for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray)
+    pAnnotHandlerMgr->ReleaseAnnot(pAnnot);
+
+  m_fxAnnotArray.clear();
+  m_pAnnotList.reset();
+#ifndef PDF_ENABLE_XFA
+  m_page->RemovePrivateData((void*)m_page);
+  if (m_bTakeOverPage) {
+    delete m_page;
+  }
+#endif  // PDF_ENABLE_XFA
+}
+
+void CPDFSDK_PageView::PageView_OnDraw(CFX_RenderDevice* pDevice,
+                                       CFX_Matrix* pUser2Device,
+#ifdef PDF_ENABLE_XFA
+                                       CPDF_RenderOptions* pOptions,
+                                       const FX_RECT& pClip) {
+#else
+                                       CPDF_RenderOptions* pOptions) {
+#endif  // PDF_ENABLE_XFA
+  m_curMatrix = *pUser2Device;
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+
+#ifdef PDF_ENABLE_XFA
+  CPDFXFA_Page* pPage = GetPDFXFAPage();
+  if (!pPage)
+    return;
+
+  if (pPage->GetDocument()->GetDocType() == DOCTYPE_DYNAMIC_XFA) {
+    CFX_Graphics gs;
+    gs.Create(pDevice);
+    CFX_RectF rectClip;
+    rectClip.Set(static_cast<FX_FLOAT>(pClip.left),
+                 static_cast<FX_FLOAT>(pClip.top),
+                 static_cast<FX_FLOAT>(pClip.Width()),
+                 static_cast<FX_FLOAT>(pClip.Height()));
+    gs.SetClipRect(rectClip);
+    IXFA_RenderContext* pRenderContext = XFA_RenderContext_Create();
+    if (!pRenderContext)
+      return;
+    CXFA_RenderOptions renderOptions;
+    renderOptions.m_bHighlight = TRUE;
+    IXFA_PageView* xfaView = pPage->GetXFAPageView();
+    pRenderContext->StartRender(xfaView, &gs, *pUser2Device, renderOptions);
+    pRenderContext->DoRender();
+    pRenderContext->StopRender();
+    pRenderContext->Release();
+    IXFA_DocView* docView = xfaView->GetDocView();
+    if (!docView)
+      return;
+    CPDFSDK_Annot* annot = GetFocusAnnot();
+    if (!annot)
+      return;
+    // Render the focus widget
+    docView->GetWidgetHandler()->RenderWidget(annot->GetXFAWidget(), &gs,
+                                              pUser2Device, FALSE);
+    return;
+  }
+#endif  // PDF_ENABLE_XFA
+
+  // for pdf/static xfa.
+  CPDFSDK_AnnotIterator annotIterator(this, true);
+  while (CPDFSDK_Annot* pSDKAnnot = annotIterator.Next()) {
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    pAnnotHandlerMgr->Annot_OnDraw(this, pSDKAnnot, pDevice, pUser2Device, 0);
+  }
+}
+
+const CPDF_Annot* CPDFSDK_PageView::GetPDFAnnotAtPoint(FX_FLOAT pageX,
+                                                       FX_FLOAT pageY) {
+  for (const CPDF_Annot* pAnnot : m_pAnnotList->All()) {
+    CFX_FloatRect annotRect;
+    pAnnot->GetRect(annotRect);
+    if (annotRect.Contains(pageX, pageY))
+      return pAnnot;
+  }
+  return nullptr;
+}
+
+const CPDF_Annot* CPDFSDK_PageView::GetPDFWidgetAtPoint(FX_FLOAT pageX,
+                                                        FX_FLOAT pageY) {
+  for (const CPDF_Annot* pAnnot : m_pAnnotList->All()) {
+    if (pAnnot->GetSubType() == "Widget") {
+      CFX_FloatRect annotRect;
+      pAnnot->GetRect(annotRect);
+      if (annotRect.Contains(pageX, pageY))
+        return pAnnot;
+    }
+  }
+  return nullptr;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetFXAnnotAtPoint(FX_FLOAT pageX,
+                                                   FX_FLOAT pageY) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
+  CPDFSDK_AnnotIterator annotIterator(this, false);
+  while (CPDFSDK_Annot* pSDKAnnot = annotIterator.Next()) {
+    CFX_FloatRect rc = pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
+    if (rc.Contains(pageX, pageY))
+      return pSDKAnnot;
+  }
+
+  return nullptr;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetFXWidgetAtPoint(FX_FLOAT pageX,
+                                                    FX_FLOAT pageY) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
+  CPDFSDK_AnnotIterator annotIterator(this, false);
+  while (CPDFSDK_Annot* pSDKAnnot = annotIterator.Next()) {
+    bool bHitTest = pSDKAnnot->GetType() == "Widget";
+#ifdef PDF_ENABLE_XFA
+    bHitTest = bHitTest || pSDKAnnot->GetType() == FSDK_XFAWIDGET_TYPENAME;
+#endif  // PDF_ENABLE_XFA
+    if (bHitTest) {
+      pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
+      CFX_FloatPoint point(pageX, pageY);
+      if (pAnnotMgr->Annot_OnHitTest(this, pSDKAnnot, point))
+        return pSDKAnnot;
+    }
+  }
+
+  return nullptr;
+}
+
+void CPDFSDK_PageView::KillFocusAnnotIfNeeded() {
+  // if there is a focused annot on the page, we should kill the focus first.
+  if (CPDFSDK_Annot* focusedAnnot = m_pSDKDoc->GetFocusAnnot()) {
+    if (pdfium::ContainsValue(m_fxAnnotArray, focusedAnnot))
+      KillFocusAnnot();
+  }
+}
+
+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 = pAnnotHandler->NewAnnot(pPDFAnnot, this);
+  if (!pSDKAnnot)
+    return nullptr;
+
+  m_fxAnnotArray.push_back(pSDKAnnot);
+  pAnnotHandler->Annot_OnCreate(pSDKAnnot);
+  return pSDKAnnot;
+}
+
+#ifdef PDF_ENABLE_XFA
+CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(IXFA_Widget* pPDFAnnot) {
+  if (!pPDFAnnot)
+    return nullptr;
+
+  CPDFSDK_Annot* pSDKAnnot = GetAnnotByXFAWidget(pPDFAnnot);
+  if (pSDKAnnot)
+    return pSDKAnnot;
+
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandler = pEnv->GetAnnotHandlerMgr();
+  pSDKAnnot = pAnnotHandler->NewAnnot(pPDFAnnot, this);
+  if (!pSDKAnnot)
+    return nullptr;
+
+  m_fxAnnotArray.push_back(pSDKAnnot);
+  return pSDKAnnot;
+}
+#endif  // PDF_ENABLE_XFA
+
+CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(CPDF_Dictionary* pDict) {
+  return pDict ? AddAnnot(pDict->GetStringBy("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) {
+#ifdef PDF_ENABLE_XFA
+  if (!pAnnot)
+    return FALSE;
+  CPDFXFA_Page* pPage = pAnnot->GetPDFXFAPage();
+  if (!pPage || (pPage->GetDocument()->GetDocType() != DOCTYPE_STATIC_XFA &&
+                 pPage->GetDocument()->GetDocType() != DOCTYPE_DYNAMIC_XFA))
+    return FALSE;
+
+  auto it = std::find(m_fxAnnotArray.begin(), m_fxAnnotArray.end(), pAnnot);
+  if (it != m_fxAnnotArray.end())
+    m_fxAnnotArray.erase(it);
+  if (m_CaptureWidget == pAnnot)
+    m_CaptureWidget = nullptr;
+
+  return TRUE;
+#else   // PDF_ENABLE_XFA
+  return FALSE;
+#endif  // PDF_ENABLE_XFA
+}
+
+CPDF_Document* CPDFSDK_PageView::GetPDFDocument() {
+  if (m_page) {
+#ifdef PDF_ENABLE_XFA
+    return m_page->GetDocument()->GetPDFDoc();
+#else   // PDF_ENABLE_XFA
+    return m_page->m_pDocument;
+#endif  // PDF_ENABLE_XFA
+  }
+  return NULL;
+}
+
+#ifdef PDF_ENABLE_XFA
+CPDF_Page* CPDFSDK_PageView::GetPDFPage() {
+  if (m_page) {
+    return m_page->GetPDFPage();
+  }
+  return NULL;
+}
+#endif  // PDF_ENABLE_XFA
+
+size_t CPDFSDK_PageView::CountAnnots() const {
+  return m_fxAnnotArray.size();
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetAnnot(size_t nIndex) {
+  return nIndex < m_fxAnnotArray.size() ? m_fxAnnotArray[nIndex] : nullptr;
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetAnnotByDict(CPDF_Dictionary* pDict) {
+  for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
+    if (pAnnot->GetPDFAnnot()->GetAnnotDict() == pDict)
+      return pAnnot;
+  }
+  return nullptr;
+}
+
+#ifdef PDF_ENABLE_XFA
+CPDFSDK_Annot* CPDFSDK_PageView::GetAnnotByXFAWidget(IXFA_Widget* hWidget) {
+  if (!hWidget)
+    return nullptr;
+
+  for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
+    if (pAnnot->GetXFAWidget() == hWidget)
+      return pAnnot;
+  }
+  return nullptr;
+}
+#endif  // PDF_ENABLE_XFA
+
+FX_BOOL CPDFSDK_PageView::OnLButtonDown(const CFX_FloatPoint& point,
+                                        FX_UINT nFlag) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  ASSERT(pEnv);
+  CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
+  if (!pFXAnnot) {
+    KillFocusAnnot(nFlag);
+    return FALSE;
+  }
+
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+  FX_BOOL bRet =
+      pAnnotHandlerMgr->Annot_OnLButtonDown(this, pFXAnnot, nFlag, point);
+  if (bRet)
+    SetFocusAnnot(pFXAnnot);
+  return bRet;
+}
+
+#ifdef PDF_ENABLE_XFA
+FX_BOOL CPDFSDK_PageView::OnRButtonDown(const CFX_FloatPoint& 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);
+
+  if (pFXAnnot == NULL)
+    return FALSE;
+
+  FX_BOOL bRet =
+      pAnnotHandlerMgr->Annot_OnRButtonDown(this, pFXAnnot, nFlag, point);
+  if (bRet) {
+    SetFocusAnnot(pFXAnnot);
+  }
+  return TRUE;
+}
+
+FX_BOOL CPDFSDK_PageView::OnRButtonUp(const CFX_FloatPoint& point,
+                                      FX_UINT nFlag) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  ASSERT(pEnv);
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+
+  CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
+
+  if (pFXAnnot == NULL)
+    return FALSE;
+
+  FX_BOOL bRet =
+      pAnnotHandlerMgr->Annot_OnRButtonUp(this, pFXAnnot, nFlag, point);
+  if (bRet) {
+    SetFocusAnnot(pFXAnnot);
+  }
+  return TRUE;
+}
+#endif  // PDF_ENABLE_XFA
+
+FX_BOOL CPDFSDK_PageView::OnLButtonUp(const CFX_FloatPoint& point,
+                                      FX_UINT nFlag) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  ASSERT(pEnv);
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+  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;
+}
+
+FX_BOOL CPDFSDK_PageView::OnMouseMove(const CFX_FloatPoint& point, int nFlag) {
+  CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+  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 CFX_FloatPoint& point,
+                                       int nFlag) {
+  if (CPDFSDK_Annot* pAnnot = GetFXWidgetAtPoint(point.x, point.y)) {
+    CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    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();
+    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();
+    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();
+#ifdef PDF_ENABLE_XFA
+  CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+#else
+  FX_BOOL enableAPUpdate = CPDF_InterForm::UpdatingAPEnabled();
+  // Disable the default AP construction.
+  CPDF_InterForm::EnableUpdateAP(FALSE);
+  m_pAnnotList.reset(new CPDF_AnnotList(m_page));
+  CPDF_InterForm::EnableUpdateAP(enableAPUpdate);
+  const size_t nCount = m_pAnnotList->Count();
+#endif  // PDF_ENABLE_XFA
+
+  SetLock(TRUE);
+
+#ifdef PDF_ENABLE_XFA
+  m_page->AddRef();
+  if (m_pSDKDoc->GetXFADocument()->GetDocType() == DOCTYPE_DYNAMIC_XFA) {
+    IXFA_PageView* pageView = m_page->GetXFAPageView();
+    IXFA_WidgetIterator* pWidgetHander = pageView->CreateWidgetIterator(
+        XFA_TRAVERSEWAY_Form, XFA_WIDGETFILTER_Visible |
+                                  XFA_WIDGETFILTER_Viewable |
+                                  XFA_WIDGETFILTER_AllType);
+    if (!pWidgetHander) {
+      m_page->Release();
+      SetLock(FALSE);
+      return;
+    }
+
+    while (IXFA_Widget* pXFAAnnot = pWidgetHander->MoveToNext()) {
+      CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pXFAAnnot, this);
+      if (!pAnnot)
+        continue;
+
+      m_fxAnnotArray.push_back(pAnnot);
+      pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
+    }
+    pWidgetHander->Release();
+  } else {
+    CPDF_Page* pPage = m_page->GetPDFPage();
+    ASSERT(pPage);
+    FX_BOOL enableAPUpdate = CPDF_InterForm::UpdatingAPEnabled();
+    // Disable the default AP construction.
+    CPDF_InterForm::EnableUpdateAP(FALSE);
+    m_pAnnotList.reset(new CPDF_AnnotList(pPage));
+    CPDF_InterForm::EnableUpdateAP(enableAPUpdate);
+
+    const size_t nCount = m_pAnnotList->Count();
+    for (size_t i = 0; i < nCount; ++i) {
+      CPDF_Annot* pPDFAnnot = m_pAnnotList->GetAt(i);
+      CheckUnSupportAnnot(GetPDFDocument(), pPDFAnnot);
+
+      CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pPDFAnnot, this);
+      if (!pAnnot)
+        continue;
+      m_fxAnnotArray.push_back(pAnnot);
+      pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
+    }
+  }
+  m_page->Release();
+#else   // PDF_ENABLE_XFA
+  for (size_t i = 0; i < nCount; ++i) {
+    CPDF_Annot* pPDFAnnot = m_pAnnotList->GetAt(i);
+    CPDF_Document* pDoc = GetPDFDocument();
+    CheckUnSupportAnnot(pDoc, pPDFAnnot);
+    CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
+    CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pPDFAnnot, this);
+    if (!pAnnot)
+      continue;
+    m_fxAnnotArray.push_back(pAnnot);
+    pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
+  }
+#endif  // PDF_ENABLE_XFA
+
+  SetLock(FALSE);
+}
+
+void CPDFSDK_PageView::ClearFXAnnots() {
+  SetLock(TRUE);
+  if (m_pSDKDoc && GetFocusAnnot())
+    m_pSDKDoc->SetFocusAnnot(nullptr);
+  m_CaptureWidget = nullptr;
+  for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray)
+    m_pSDKDoc->GetEnv()->GetAnnotHandlerMgr()->ReleaseAnnot(pAnnot);
+  m_fxAnnotArray.clear();
+  m_pAnnotList.reset();
+  SetLock(FALSE);
+}
+
+void CPDFSDK_PageView::UpdateRects(CFX_RectArray& rects) {
+  for (int i = 0; i < rects.GetSize(); i++) {
+    CFX_FloatRect 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) {
+  CFX_FloatRect 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) {
+#ifdef PDF_ENABLE_XFA
+    CPDF_Dictionary* pDic = m_page->GetPDFPage()->m_pFormDict;
+#else   // PDF_ENABLE_XFA
+    CPDF_Dictionary* pDic = m_page->m_pFormDict;
+#endif  // PDF_ENABLE_XFA
+    CPDF_Document* pDoc = m_pSDKDoc->GetPDFDocument();
+    if (pDoc && pDic) {
+      return pDoc->GetPageIndex(pDic->GetObjNum());
+    }
+  }
+  return -1;
+}
+
+bool CPDFSDK_PageView::IsValidAnnot(const CPDF_Annot* p) const {
+  if (!p)
+    return false;
+
+  const auto& annots = m_pAnnotList->All();
+  return pdfium::ContainsValue(annots, p);
+}
+
+CPDFSDK_Annot* CPDFSDK_PageView::GetFocusAnnot() {
+  CPDFSDK_Annot* pFocusAnnot = m_pSDKDoc->GetFocusAnnot();
+  if (!pFocusAnnot)
+    return nullptr;
+
+  for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
+    if (pAnnot == pFocusAnnot)
+      return pAnnot;
+  }
+  return nullptr;
+}