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      1 // Copyright 2014 PDFium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
      6 
      7 #include <algorithm>
      8 #include <memory>
      9 
     10 #include "fpdfsdk/include/fsdk_mgr.h"
     11 
     12 #include "fpdfsdk/include/formfiller/FFL_FormFiller.h"
     13 #include "fpdfsdk/include/fsdk_define.h"
     14 #include "fpdfsdk/include/javascript/IJavaScript.h"
     15 #include "public/fpdf_ext.h"
     16 #include "third_party/base/stl_util.h"
     17 
     18 #ifdef PDF_ENABLE_XFA
     19 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h"
     20 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_doc.h"
     21 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_page.h"
     22 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_util.h"
     23 #endif  // PDF_ENABLE_XFA
     24 
     25 #if _FX_OS_ == _FX_ANDROID_
     26 #include "time.h"
     27 #else
     28 #include <ctime>
     29 #endif
     30 
     31 class CFX_SystemHandler : public IFX_SystemHandler {
     32  public:
     33   explicit CFX_SystemHandler(CPDFDoc_Environment* pEnv)
     34       : m_pEnv(pEnv), m_nCharSet(-1) {}
     35   ~CFX_SystemHandler() override {}
     36 
     37  public:
     38   // IFX_SystemHandler
     39   void InvalidateRect(FX_HWND hWnd, FX_RECT rect) override;
     40   void OutputSelectedRect(void* pFormFiller, CPDF_Rect& rect) override;
     41   FX_BOOL IsSelectionImplemented() override;
     42   CFX_WideString GetClipboardText(FX_HWND hWnd) override { return L""; }
     43   FX_BOOL SetClipboardText(FX_HWND hWnd, CFX_WideString string) override {
     44     return FALSE;
     45   }
     46   void ClientToScreen(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
     47   void ScreenToClient(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
     48   void SetCursor(int32_t nCursorType) override;
     49   FX_HMENU CreatePopupMenu() override { return NULL; }
     50   FX_BOOL AppendMenuItem(FX_HMENU hMenu,
     51                          int32_t nIDNewItem,
     52                          CFX_WideString string) override {
     53     return FALSE;
     54   }
     55   FX_BOOL EnableMenuItem(FX_HMENU hMenu,
     56                          int32_t nIDItem,
     57                          FX_BOOL bEnabled) override {
     58     return FALSE;
     59   }
     60   int32_t TrackPopupMenu(FX_HMENU hMenu,
     61                          int32_t x,
     62                          int32_t y,
     63                          FX_HWND hParent) override {
     64     return -1;
     65   }
     66   void DestroyMenu(FX_HMENU hMenu) override {}
     67   CFX_ByteString GetNativeTrueTypeFont(int32_t nCharset) override;
     68   FX_BOOL FindNativeTrueTypeFont(int32_t nCharset,
     69                                  CFX_ByteString sFontFaceName) override;
     70   CPDF_Font* AddNativeTrueTypeFontToPDF(CPDF_Document* pDoc,
     71                                         CFX_ByteString sFontFaceName,
     72                                         uint8_t nCharset) override;
     73   int32_t SetTimer(int32_t uElapse, TimerCallback lpTimerFunc) override;
     74   void KillTimer(int32_t nID) override;
     75   FX_BOOL IsSHIFTKeyDown(FX_DWORD nFlag) override {
     76     return m_pEnv->FFI_IsSHIFTKeyDown(nFlag);
     77   }
     78   FX_BOOL IsCTRLKeyDown(FX_DWORD nFlag) override {
     79     return m_pEnv->FFI_IsCTRLKeyDown(nFlag);
     80   }
     81   FX_BOOL IsALTKeyDown(FX_DWORD nFlag) override {
     82     return m_pEnv->FFI_IsALTKeyDown(nFlag);
     83   }
     84   FX_BOOL IsINSERTKeyDown(FX_DWORD nFlag) override {
     85     return m_pEnv->FFI_IsINSERTKeyDown(nFlag);
     86   }
     87   FX_SYSTEMTIME GetLocalTime() override;
     88   int32_t GetCharSet() override { return m_nCharSet; }
     89   void SetCharSet(int32_t nCharSet) override { m_nCharSet = nCharSet; }
     90 
     91  private:
     92   CPDFDoc_Environment* m_pEnv;
     93   int m_nCharSet;
     94 };
     95 
     96 void CFX_SystemHandler::SetCursor(int32_t nCursorType) {
     97   m_pEnv->FFI_SetCursor(nCursorType);
     98 }
     99 
    100 void CFX_SystemHandler::InvalidateRect(FX_HWND hWnd, FX_RECT rect) {
    101   CPDFSDK_Annot* pSDKAnnot = (CPDFSDK_Annot*)hWnd;
    102   CPDFSDK_PageView* pPageView = pSDKAnnot->GetPageView();
    103   UnderlyingPageType* pPage = pSDKAnnot->GetUnderlyingPage();
    104   if (!pPage || !pPageView)
    105     return;
    106   CFX_Matrix page2device;
    107   pPageView->GetCurrentMatrix(page2device);
    108   CFX_Matrix device2page;
    109   device2page.SetReverse(page2device);
    110   FX_FLOAT left, top, right, bottom;
    111   device2page.Transform((FX_FLOAT)rect.left, (FX_FLOAT)rect.top, left, top);
    112   device2page.Transform((FX_FLOAT)rect.right, (FX_FLOAT)rect.bottom, right,
    113                         bottom);
    114   CPDF_Rect rcPDF(left, bottom, right, top);
    115   rcPDF.Normalize();
    116 
    117   m_pEnv->FFI_Invalidate(pPage, rcPDF.left, rcPDF.top, rcPDF.right,
    118                          rcPDF.bottom);
    119 }
    120 void CFX_SystemHandler::OutputSelectedRect(void* pFormFiller, CPDF_Rect& rect) {
    121   CFFL_FormFiller* pFFL = (CFFL_FormFiller*)pFormFiller;
    122   if (pFFL) {
    123     CPDF_Point leftbottom = CPDF_Point(rect.left, rect.bottom);
    124     CPDF_Point righttop = CPDF_Point(rect.right, rect.top);
    125     CPDF_Point ptA = pFFL->PWLtoFFL(leftbottom);
    126     CPDF_Point ptB = pFFL->PWLtoFFL(righttop);
    127     CPDFSDK_Annot* pAnnot = pFFL->GetSDKAnnot();
    128     UnderlyingPageType* pPage = pAnnot->GetUnderlyingPage();
    129     ASSERT(pPage);
    130     m_pEnv->FFI_OutputSelectedRect(pPage, ptA.x, ptB.y, ptB.x, ptA.y);
    131   }
    132 }
    133 
    134 FX_BOOL CFX_SystemHandler::IsSelectionImplemented() {
    135   if (m_pEnv) {
    136     FPDF_FORMFILLINFO* pInfo = m_pEnv->GetFormFillInfo();
    137     if (pInfo && pInfo->FFI_OutputSelectedRect)
    138       return TRUE;
    139   }
    140   return FALSE;
    141 }
    142 
    143 CFX_ByteString CFX_SystemHandler::GetNativeTrueTypeFont(int32_t nCharset) {
    144   return "";
    145 }
    146 
    147 FX_BOOL CFX_SystemHandler::FindNativeTrueTypeFont(
    148     int32_t nCharset,
    149     CFX_ByteString sFontFaceName) {
    150   CFX_FontMgr* pFontMgr = CFX_GEModule::Get()->GetFontMgr();
    151   if (!pFontMgr)
    152     return FALSE;
    153 
    154   CFX_FontMapper* pFontMapper = pFontMgr->GetBuiltinMapper();
    155   if (!pFontMapper)
    156     return FALSE;
    157 
    158   int nSize = pFontMapper->m_InstalledTTFonts.GetSize();
    159   if (nSize == 0) {
    160     pFontMapper->LoadInstalledFonts();
    161     nSize = pFontMapper->m_InstalledTTFonts.GetSize();
    162   }
    163 
    164   for (int i = 0; i < nSize; ++i) {
    165     if (pFontMapper->m_InstalledTTFonts[i].Compare(sFontFaceName))
    166       return TRUE;
    167   }
    168 
    169   return FALSE;
    170 }
    171 
    172 static int CharSet2CP(int charset) {
    173   if (charset == 128)
    174     return 932;
    175   if (charset == 134)
    176     return 936;
    177   if (charset == 129)
    178     return 949;
    179   if (charset == 136)
    180     return 950;
    181   return 0;
    182 }
    183 CPDF_Font* CFX_SystemHandler::AddNativeTrueTypeFontToPDF(
    184     CPDF_Document* pDoc,
    185     CFX_ByteString sFontFaceName,
    186     uint8_t nCharset) {
    187   if (pDoc) {
    188     CFX_Font* pFXFont = new CFX_Font();
    189     pFXFont->LoadSubst(sFontFaceName, TRUE, 0, 0, 0, CharSet2CP(nCharset),
    190                        FALSE);
    191     CPDF_Font* pFont = pDoc->AddFont(pFXFont, nCharset, FALSE);
    192     delete pFXFont;
    193     return pFont;
    194   }
    195 
    196   return NULL;
    197 }
    198 
    199 int32_t CFX_SystemHandler::SetTimer(int32_t uElapse,
    200                                     TimerCallback lpTimerFunc) {
    201   return m_pEnv->FFI_SetTimer(uElapse, lpTimerFunc);
    202 }
    203 void CFX_SystemHandler::KillTimer(int32_t nID) {
    204   m_pEnv->FFI_KillTimer(nID);
    205 }
    206 
    207 FX_SYSTEMTIME CFX_SystemHandler::GetLocalTime() {
    208   return m_pEnv->FFI_GetLocalTime();
    209 }
    210 
    211 CPDFDoc_Environment::CPDFDoc_Environment(UnderlyingDocumentType* pDoc,
    212                                          FPDF_FORMFILLINFO* pFFinfo)
    213     : m_pInfo(pFFinfo), m_pSDKDoc(NULL), m_pUnderlyingDoc(pDoc) {
    214   m_pSysHandler.reset(new CFX_SystemHandler(this));
    215 }
    216 
    217 CPDFDoc_Environment::~CPDFDoc_Environment() {
    218 #ifdef PDF_ENABLE_XFA
    219   CPDFXFA_App* pProvider = CPDFXFA_App::GetInstance();
    220   if (pProvider->m_pEnvList.GetSize() == 0)
    221     pProvider->SetJavaScriptInitialized(FALSE);
    222 #endif  // PDF_ENABLE_XFA
    223 }
    224 
    225 int CPDFDoc_Environment::JS_appAlert(const FX_WCHAR* Msg,
    226                                      const FX_WCHAR* Title,
    227                                      FX_UINT Type,
    228                                      FX_UINT Icon) {
    229   if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->app_alert) {
    230     CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
    231     CFX_ByteString bsTitle = CFX_WideString(Title).UTF16LE_Encode();
    232     FPDF_WIDESTRING pMsg = (FPDF_WIDESTRING)bsMsg.GetBuffer(bsMsg.GetLength());
    233     FPDF_WIDESTRING pTitle =
    234         (FPDF_WIDESTRING)bsTitle.GetBuffer(bsTitle.GetLength());
    235     int ret = m_pInfo->m_pJsPlatform->app_alert(m_pInfo->m_pJsPlatform, pMsg,
    236                                                 pTitle, Type, Icon);
    237     bsMsg.ReleaseBuffer();
    238     bsTitle.ReleaseBuffer();
    239     return ret;
    240   }
    241   return -1;
    242 }
    243 
    244 int CPDFDoc_Environment::JS_appResponse(const FX_WCHAR* Question,
    245                                         const FX_WCHAR* Title,
    246                                         const FX_WCHAR* Default,
    247                                         const FX_WCHAR* cLabel,
    248                                         FPDF_BOOL bPassword,
    249                                         void* response,
    250                                         int length) {
    251   if (m_pInfo && m_pInfo->m_pJsPlatform &&
    252       m_pInfo->m_pJsPlatform->app_response) {
    253     CFX_ByteString bsQuestion = CFX_WideString(Question).UTF16LE_Encode();
    254     CFX_ByteString bsTitle = CFX_WideString(Title).UTF16LE_Encode();
    255     CFX_ByteString bsDefault = CFX_WideString(Default).UTF16LE_Encode();
    256     CFX_ByteString bsLabel = CFX_WideString(cLabel).UTF16LE_Encode();
    257     FPDF_WIDESTRING pQuestion =
    258         (FPDF_WIDESTRING)bsQuestion.GetBuffer(bsQuestion.GetLength());
    259     FPDF_WIDESTRING pTitle =
    260         (FPDF_WIDESTRING)bsTitle.GetBuffer(bsTitle.GetLength());
    261     FPDF_WIDESTRING pDefault =
    262         (FPDF_WIDESTRING)bsDefault.GetBuffer(bsDefault.GetLength());
    263     FPDF_WIDESTRING pLabel =
    264         (FPDF_WIDESTRING)bsLabel.GetBuffer(bsLabel.GetLength());
    265     int ret = m_pInfo->m_pJsPlatform->app_response(
    266         m_pInfo->m_pJsPlatform, pQuestion, pTitle, pDefault, pLabel, bPassword,
    267         response, length);
    268     bsQuestion.ReleaseBuffer();
    269     bsTitle.ReleaseBuffer();
    270     bsDefault.ReleaseBuffer();
    271     bsLabel.ReleaseBuffer();
    272     return ret;
    273   }
    274   return -1;
    275 }
    276 
    277 CFX_WideString CPDFDoc_Environment::JS_fieldBrowse() {
    278   if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
    279       !m_pInfo->m_pJsPlatform->Field_browse) {
    280     return L"";
    281   }
    282 
    283   const int nRequiredLen =
    284       m_pInfo->m_pJsPlatform->Field_browse(m_pInfo->m_pJsPlatform, nullptr, 0);
    285   if (nRequiredLen <= 0)
    286     return L"";
    287 
    288   std::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
    289   memset(pBuff.get(), 0, nRequiredLen);
    290   const int nActualLen = m_pInfo->m_pJsPlatform->Field_browse(
    291       m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
    292   if (nActualLen <= 0 || nActualLen > nRequiredLen)
    293     return L"";
    294 
    295   CFX_ByteString bsRet = CFX_ByteString(pBuff.get(), nActualLen);
    296   CFX_WideString wsRet = CFX_WideString::FromLocal(bsRet);
    297   return wsRet;
    298 }
    299 
    300 CFX_WideString CPDFDoc_Environment::JS_docGetFilePath() {
    301   if (!m_pInfo || !m_pInfo->m_pJsPlatform ||
    302       !m_pInfo->m_pJsPlatform->Doc_getFilePath) {
    303     return L"";
    304   }
    305 
    306   const int nRequiredLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
    307       m_pInfo->m_pJsPlatform, nullptr, 0);
    308   if (nRequiredLen <= 0)
    309     return L"";
    310 
    311   std::unique_ptr<char[]> pBuff(new char[nRequiredLen]);
    312   memset(pBuff.get(), 0, nRequiredLen);
    313   const int nActualLen = m_pInfo->m_pJsPlatform->Doc_getFilePath(
    314       m_pInfo->m_pJsPlatform, pBuff.get(), nRequiredLen);
    315   if (nActualLen <= 0 || nActualLen > nRequiredLen)
    316     return L"";
    317 
    318   CFX_ByteString bsRet = CFX_ByteString(pBuff.get(), nActualLen);
    319   CFX_WideString wsRet = CFX_WideString::FromLocal(bsRet);
    320   return wsRet;
    321 }
    322 
    323 void CPDFDoc_Environment::JS_docSubmitForm(void* formData,
    324                                            int length,
    325                                            const FX_WCHAR* URL) {
    326   if (m_pInfo && m_pInfo->m_pJsPlatform &&
    327       m_pInfo->m_pJsPlatform->Doc_submitForm) {
    328     CFX_ByteString bsDestination = CFX_WideString(URL).UTF16LE_Encode();
    329     FPDF_WIDESTRING pDestination =
    330         (FPDF_WIDESTRING)bsDestination.GetBuffer(bsDestination.GetLength());
    331     m_pInfo->m_pJsPlatform->Doc_submitForm(m_pInfo->m_pJsPlatform, formData,
    332                                            length, pDestination);
    333     bsDestination.ReleaseBuffer();
    334   }
    335 }
    336 
    337 void CPDFDoc_Environment::JS_docmailForm(void* mailData,
    338                                          int length,
    339                                          FPDF_BOOL bUI,
    340                                          const FX_WCHAR* To,
    341                                          const FX_WCHAR* Subject,
    342                                          const FX_WCHAR* CC,
    343                                          const FX_WCHAR* BCC,
    344                                          const FX_WCHAR* Msg) {
    345   if (m_pInfo && m_pInfo->m_pJsPlatform && m_pInfo->m_pJsPlatform->Doc_mail) {
    346     CFX_ByteString bsTo = CFX_WideString(To).UTF16LE_Encode();
    347     CFX_ByteString bsCC = CFX_WideString(Subject).UTF16LE_Encode();
    348     CFX_ByteString bsBcc = CFX_WideString(BCC).UTF16LE_Encode();
    349     CFX_ByteString bsSubject = CFX_WideString(Subject).UTF16LE_Encode();
    350     CFX_ByteString bsMsg = CFX_WideString(Msg).UTF16LE_Encode();
    351     FPDF_WIDESTRING pTo = (FPDF_WIDESTRING)bsTo.GetBuffer(bsTo.GetLength());
    352     FPDF_WIDESTRING pCC = (FPDF_WIDESTRING)bsCC.GetBuffer(bsCC.GetLength());
    353     FPDF_WIDESTRING pBcc = (FPDF_WIDESTRING)bsBcc.GetBuffer(bsBcc.GetLength());
    354     FPDF_WIDESTRING pSubject =
    355         (FPDF_WIDESTRING)bsSubject.GetBuffer(bsSubject.GetLength());
    356     FPDF_WIDESTRING pMsg = (FPDF_WIDESTRING)bsMsg.GetBuffer(bsMsg.GetLength());
    357     m_pInfo->m_pJsPlatform->Doc_mail(m_pInfo->m_pJsPlatform, mailData, length,
    358                                      bUI, pTo, pSubject, pCC, pBcc, pMsg);
    359     bsTo.ReleaseBuffer();
    360     bsCC.ReleaseBuffer();
    361     bsBcc.ReleaseBuffer();
    362     bsSubject.ReleaseBuffer();
    363     bsMsg.ReleaseBuffer();
    364   }
    365 }
    366 
    367 IJS_Runtime* CPDFDoc_Environment::GetJSRuntime() {
    368   if (!IsJSInitiated())
    369     return NULL;
    370   if (!m_pJSRuntime)
    371     m_pJSRuntime.reset(IJS_Runtime::Create(this));
    372   return m_pJSRuntime.get();
    373 }
    374 
    375 CPDFSDK_AnnotHandlerMgr* CPDFDoc_Environment::GetAnnotHandlerMgr() {
    376   if (!m_pAnnotHandlerMgr)
    377     m_pAnnotHandlerMgr.reset(new CPDFSDK_AnnotHandlerMgr(this));
    378   return m_pAnnotHandlerMgr.get();
    379 }
    380 
    381 CPDFSDK_ActionHandler* CPDFDoc_Environment::GetActionHander() {
    382   if (!m_pActionHandler)
    383     m_pActionHandler.reset(new CPDFSDK_ActionHandler());
    384   return m_pActionHandler.get();
    385 }
    386 
    387 CFFL_IFormFiller* CPDFDoc_Environment::GetIFormFiller() {
    388   if (!m_pIFormFiller)
    389     m_pIFormFiller.reset(new CFFL_IFormFiller(this));
    390   return m_pIFormFiller.get();
    391 }
    392 
    393 CPDFSDK_Document::CPDFSDK_Document(UnderlyingDocumentType* pDoc,
    394                                    CPDFDoc_Environment* pEnv)
    395     : m_pDoc(pDoc),
    396       m_pFocusAnnot(nullptr),
    397       m_pEnv(pEnv),
    398       m_bChangeMask(FALSE),
    399       m_bBeingDestroyed(FALSE) {}
    400 
    401 CPDFSDK_Document::~CPDFSDK_Document() {
    402   m_bBeingDestroyed = TRUE;
    403 
    404   for (auto& it : m_pageMap)
    405     it.second->KillFocusAnnotIfNeeded();
    406 
    407   for (auto& it : m_pageMap)
    408     delete it.second;
    409   m_pageMap.clear();
    410 }
    411 
    412 CPDFSDK_PageView* CPDFSDK_Document::GetPageView(
    413     UnderlyingPageType* pUnderlyingPage,
    414     FX_BOOL ReNew) {
    415   auto it = m_pageMap.find(pUnderlyingPage);
    416   if (it != m_pageMap.end())
    417     return it->second;
    418 
    419   if (!ReNew)
    420     return nullptr;
    421 
    422   CPDFSDK_PageView* pPageView = new CPDFSDK_PageView(this, pUnderlyingPage);
    423   m_pageMap[pUnderlyingPage] = pPageView;
    424   // Delay to load all the annotations, to avoid endless loop.
    425   pPageView->LoadFXAnnots();
    426   return pPageView;
    427 }
    428 
    429 CPDFSDK_PageView* CPDFSDK_Document::GetCurrentView() {
    430   UnderlyingPageType* pPage =
    431       UnderlyingFromFPDFPage(m_pEnv->FFI_GetCurrentPage(m_pDoc));
    432   return pPage ? GetPageView(pPage, TRUE) : nullptr;
    433 }
    434 
    435 CPDFSDK_PageView* CPDFSDK_Document::GetPageView(int nIndex) {
    436   UnderlyingPageType* pTempPage =
    437       UnderlyingFromFPDFPage(m_pEnv->FFI_GetPage(m_pDoc, nIndex));
    438   if (!pTempPage)
    439     return nullptr;
    440 
    441   auto it = m_pageMap.find(pTempPage);
    442   return it->second;
    443 }
    444 
    445 void CPDFSDK_Document::ProcJavascriptFun() {
    446   CPDF_Document* pPDFDoc = GetPDFDocument();
    447   CPDF_DocJSActions docJS(pPDFDoc);
    448   int iCount = docJS.CountJSActions();
    449   if (iCount < 1)
    450     return;
    451   for (int i = 0; i < iCount; i++) {
    452     CFX_ByteString csJSName;
    453     CPDF_Action jsAction = docJS.GetJSAction(i, csJSName);
    454     if (m_pEnv->GetActionHander())
    455       m_pEnv->GetActionHander()->DoAction_JavaScript(
    456           jsAction, CFX_WideString::FromLocal(csJSName), this);
    457   }
    458 }
    459 
    460 FX_BOOL CPDFSDK_Document::ProcOpenAction() {
    461   if (!m_pDoc)
    462     return FALSE;
    463 
    464   CPDF_Dictionary* pRoot = GetPDFDocument()->GetRoot();
    465   if (!pRoot)
    466     return FALSE;
    467 
    468   CPDF_Object* pOpenAction = pRoot->GetDict("OpenAction");
    469   if (!pOpenAction)
    470     pOpenAction = pRoot->GetArray("OpenAction");
    471 
    472   if (!pOpenAction)
    473     return FALSE;
    474 
    475   if (pOpenAction->IsArray())
    476     return TRUE;
    477 
    478   if (CPDF_Dictionary* pDict = pOpenAction->AsDictionary()) {
    479     CPDF_Action action(pDict);
    480     if (m_pEnv->GetActionHander())
    481       m_pEnv->GetActionHander()->DoAction_DocOpen(action, this);
    482     return TRUE;
    483   }
    484   return FALSE;
    485 }
    486 
    487 CPDF_OCContext* CPDFSDK_Document::GetOCContext() {
    488   if (!m_pOccontent)
    489     m_pOccontent.reset(new CPDF_OCContext(GetPDFDocument()));
    490   return m_pOccontent.get();
    491 }
    492 
    493 void CPDFSDK_Document::RemovePageView(UnderlyingPageType* pUnderlyingPage) {
    494   auto it = m_pageMap.find(pUnderlyingPage);
    495   if (it == m_pageMap.end())
    496     return;
    497 
    498   CPDFSDK_PageView* pPageView = it->second;
    499   if (pPageView->IsLocked())
    500     return;
    501 
    502   pPageView->KillFocusAnnotIfNeeded();
    503   delete pPageView;
    504   m_pageMap.erase(it);
    505 }
    506 
    507 UnderlyingPageType* CPDFSDK_Document::GetPage(int nIndex) {
    508   return UnderlyingFromFPDFPage(m_pEnv->FFI_GetPage(m_pDoc, nIndex));
    509 }
    510 
    511 CPDFSDK_InterForm* CPDFSDK_Document::GetInterForm() {
    512   if (!m_pInterForm)
    513     m_pInterForm.reset(new CPDFSDK_InterForm(this));
    514   return m_pInterForm.get();
    515 }
    516 
    517 void CPDFSDK_Document::UpdateAllViews(CPDFSDK_PageView* pSender,
    518                                       CPDFSDK_Annot* pAnnot) {
    519   for (const auto& it : m_pageMap) {
    520     CPDFSDK_PageView* pPageView = it.second;
    521     if (pPageView != pSender) {
    522       pPageView->UpdateView(pAnnot);
    523     }
    524   }
    525 }
    526 
    527 CPDFSDK_Annot* CPDFSDK_Document::GetFocusAnnot() {
    528   return m_pFocusAnnot;
    529 }
    530 
    531 FX_BOOL CPDFSDK_Document::SetFocusAnnot(CPDFSDK_Annot* pAnnot, FX_UINT nFlag) {
    532   if (m_bBeingDestroyed)
    533     return FALSE;
    534 
    535   if (m_pFocusAnnot == pAnnot)
    536     return TRUE;
    537 
    538   if (m_pFocusAnnot) {
    539     if (!KillFocusAnnot(nFlag))
    540       return FALSE;
    541   }
    542 
    543   if (!pAnnot)
    544     return FALSE;
    545 
    546 #ifdef PDF_ENABLE_XFA
    547   CPDFSDK_Annot* pLastFocusAnnot = m_pFocusAnnot;
    548 #endif  // PDF_ENABLE_XFA
    549   CPDFSDK_PageView* pPageView = pAnnot->GetPageView();
    550   if (pPageView && pPageView->IsValid()) {
    551     CPDFSDK_AnnotHandlerMgr* pAnnotHandler = m_pEnv->GetAnnotHandlerMgr();
    552     if (!m_pFocusAnnot) {
    553 #ifdef PDF_ENABLE_XFA
    554       if (!pAnnotHandler->Annot_OnChangeFocus(pAnnot, pLastFocusAnnot))
    555         return FALSE;
    556 #endif  // PDF_ENABLE_XFA
    557       if (!pAnnotHandler->Annot_OnSetFocus(pAnnot, nFlag))
    558         return FALSE;
    559       if (!m_pFocusAnnot) {
    560         m_pFocusAnnot = pAnnot;
    561         return TRUE;
    562       }
    563     }
    564   }
    565   return FALSE;
    566 }
    567 
    568 FX_BOOL CPDFSDK_Document::KillFocusAnnot(FX_UINT nFlag) {
    569   if (m_pFocusAnnot) {
    570     CPDFSDK_AnnotHandlerMgr* pAnnotHandler = m_pEnv->GetAnnotHandlerMgr();
    571     CPDFSDK_Annot* pFocusAnnot = m_pFocusAnnot;
    572     m_pFocusAnnot = nullptr;
    573 
    574 #ifdef PDF_ENABLE_XFA
    575     if (!pAnnotHandler->Annot_OnChangeFocus(nullptr, pFocusAnnot))
    576       return FALSE;
    577 #endif  // PDF_ENABLE_XFA
    578 
    579     if (pAnnotHandler->Annot_OnKillFocus(pFocusAnnot, nFlag)) {
    580       if (pFocusAnnot->GetType() == "Widget") {
    581         CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pFocusAnnot;
    582         int nFieldType = pWidget->GetFieldType();
    583         if (FIELDTYPE_TEXTFIELD == nFieldType ||
    584             FIELDTYPE_COMBOBOX == nFieldType) {
    585           m_pEnv->FFI_OnSetFieldInputFocus(NULL, NULL, 0, FALSE);
    586         }
    587       }
    588 
    589       if (!m_pFocusAnnot)
    590         return TRUE;
    591     } else {
    592       m_pFocusAnnot = pFocusAnnot;
    593     }
    594   }
    595   return FALSE;
    596 }
    597 
    598 void CPDFSDK_Document::OnCloseDocument() {
    599   KillFocusAnnot();
    600 }
    601 
    602 FX_BOOL CPDFSDK_Document::GetPermissions(int nFlag) {
    603   return GetPDFDocument()->GetUserPermissions() & nFlag;
    604 }
    605 
    606 IJS_Runtime* CPDFSDK_Document::GetJsRuntime() {
    607   return m_pEnv->GetJSRuntime();
    608 }
    609 
    610 CFX_WideString CPDFSDK_Document::GetPath() {
    611   return m_pEnv->JS_docGetFilePath();
    612 }
    613 
    614 CPDFSDK_PageView::CPDFSDK_PageView(CPDFSDK_Document* pSDKDoc,
    615                                    UnderlyingPageType* page)
    616     : m_page(page),
    617       m_pSDKDoc(pSDKDoc),
    618       m_CaptureWidget(nullptr),
    619 #ifndef PDF_ENABLE_XFA
    620       m_bTakeOverPage(FALSE),
    621 #endif  // PDF_ENABLE_XFA
    622       m_bEnterWidget(FALSE),
    623       m_bExitWidget(FALSE),
    624       m_bOnWidget(FALSE),
    625       m_bValid(FALSE),
    626       m_bLocked(FALSE) {
    627   CPDFSDK_InterForm* pInterForm = pSDKDoc->GetInterForm();
    628   if (pInterForm) {
    629     CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm();
    630 #ifdef PDF_ENABLE_XFA
    631     if (page->GetPDFPage())
    632       pPDFInterForm->FixPageFields(page->GetPDFPage());
    633 #else   // PDF_ENABLE_XFA
    634     pPDFInterForm->FixPageFields(page);
    635 #endif  // PDF_ENABLE_XFA
    636   }
    637 #ifndef PDF_ENABLE_XFA
    638   m_page->SetPrivateData((void*)m_page, (void*)this, nullptr);
    639 #endif  // PDF_ENABLE_XFA
    640 }
    641 
    642 CPDFSDK_PageView::~CPDFSDK_PageView() {
    643   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    644   CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
    645   for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray)
    646     pAnnotHandlerMgr->ReleaseAnnot(pAnnot);
    647 
    648   m_fxAnnotArray.clear();
    649   m_pAnnotList.reset();
    650 #ifndef PDF_ENABLE_XFA
    651   m_page->RemovePrivateData((void*)m_page);
    652   if (m_bTakeOverPage) {
    653     delete m_page;
    654   }
    655 #endif  // PDF_ENABLE_XFA
    656 }
    657 
    658 void CPDFSDK_PageView::PageView_OnDraw(CFX_RenderDevice* pDevice,
    659                                        CFX_Matrix* pUser2Device,
    660 #ifdef PDF_ENABLE_XFA
    661                                        CPDF_RenderOptions* pOptions,
    662                                        const FX_RECT& pClip) {
    663 #else
    664                                        CPDF_RenderOptions* pOptions) {
    665 #endif  // PDF_ENABLE_XFA
    666   m_curMatrix = *pUser2Device;
    667   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    668 
    669 #ifdef PDF_ENABLE_XFA
    670   CPDFXFA_Page* pPage = GetPDFXFAPage();
    671   if (!pPage)
    672     return;
    673 
    674   if (pPage->GetDocument()->GetDocType() == DOCTYPE_DYNAMIC_XFA) {
    675     CFX_Graphics gs;
    676     gs.Create(pDevice);
    677     CFX_RectF rectClip;
    678     rectClip.Set(static_cast<FX_FLOAT>(pClip.left),
    679                  static_cast<FX_FLOAT>(pClip.top),
    680                  static_cast<FX_FLOAT>(pClip.Width()),
    681                  static_cast<FX_FLOAT>(pClip.Height()));
    682     gs.SetClipRect(rectClip);
    683     IXFA_RenderContext* pRenderContext = XFA_RenderContext_Create();
    684     if (!pRenderContext)
    685       return;
    686     CXFA_RenderOptions renderOptions;
    687     renderOptions.m_bHighlight = TRUE;
    688     IXFA_PageView* xfaView = pPage->GetXFAPageView();
    689     pRenderContext->StartRender(xfaView, &gs, *pUser2Device, renderOptions);
    690     pRenderContext->DoRender();
    691     pRenderContext->StopRender();
    692     pRenderContext->Release();
    693     IXFA_DocView* docView = xfaView->GetDocView();
    694     if (!docView)
    695       return;
    696     CPDFSDK_Annot* annot = GetFocusAnnot();
    697     if (!annot)
    698       return;
    699     // Render the focus widget
    700     docView->GetWidgetHandler()->RenderWidget(annot->GetXFAWidget(), &gs,
    701                                               pUser2Device, FALSE);
    702     return;
    703   }
    704 #endif  // PDF_ENABLE_XFA
    705 
    706   // for pdf/static xfa.
    707   CPDFSDK_AnnotIterator annotIterator(this, true);
    708   while (CPDFSDK_Annot* pSDKAnnot = annotIterator.Next()) {
    709     CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
    710     pAnnotHandlerMgr->Annot_OnDraw(this, pSDKAnnot, pDevice, pUser2Device, 0);
    711   }
    712 }
    713 
    714 const CPDF_Annot* CPDFSDK_PageView::GetPDFAnnotAtPoint(FX_FLOAT pageX,
    715                                                        FX_FLOAT pageY) {
    716   for (const CPDF_Annot* pAnnot : m_pAnnotList->All()) {
    717     CFX_FloatRect annotRect;
    718     pAnnot->GetRect(annotRect);
    719     if (annotRect.Contains(pageX, pageY))
    720       return pAnnot;
    721   }
    722   return nullptr;
    723 }
    724 
    725 const CPDF_Annot* CPDFSDK_PageView::GetPDFWidgetAtPoint(FX_FLOAT pageX,
    726                                                         FX_FLOAT pageY) {
    727   for (const CPDF_Annot* pAnnot : m_pAnnotList->All()) {
    728     if (pAnnot->GetSubType() == "Widget") {
    729       CFX_FloatRect annotRect;
    730       pAnnot->GetRect(annotRect);
    731       if (annotRect.Contains(pageX, pageY))
    732         return pAnnot;
    733     }
    734   }
    735   return nullptr;
    736 }
    737 
    738 CPDFSDK_Annot* CPDFSDK_PageView::GetFXAnnotAtPoint(FX_FLOAT pageX,
    739                                                    FX_FLOAT pageY) {
    740   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    741   CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
    742   CPDFSDK_AnnotIterator annotIterator(this, false);
    743   while (CPDFSDK_Annot* pSDKAnnot = annotIterator.Next()) {
    744     CPDF_Rect rc = pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
    745     if (rc.Contains(pageX, pageY))
    746       return pSDKAnnot;
    747   }
    748 
    749   return nullptr;
    750 }
    751 
    752 CPDFSDK_Annot* CPDFSDK_PageView::GetFXWidgetAtPoint(FX_FLOAT pageX,
    753                                                     FX_FLOAT pageY) {
    754   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    755   CPDFSDK_AnnotHandlerMgr* pAnnotMgr = pEnv->GetAnnotHandlerMgr();
    756   CPDFSDK_AnnotIterator annotIterator(this, false);
    757   while (CPDFSDK_Annot* pSDKAnnot = annotIterator.Next()) {
    758     bool bHitTest = pSDKAnnot->GetType() == "Widget";
    759 #ifdef PDF_ENABLE_XFA
    760     bHitTest = bHitTest || pSDKAnnot->GetType() == FSDK_XFAWIDGET_TYPENAME;
    761 #endif  // PDF_ENABLE_XFA
    762     if (bHitTest) {
    763       pAnnotMgr->Annot_OnGetViewBBox(this, pSDKAnnot);
    764       CPDF_Point point(pageX, pageY);
    765       if (pAnnotMgr->Annot_OnHitTest(this, pSDKAnnot, point))
    766         return pSDKAnnot;
    767     }
    768   }
    769 
    770   return nullptr;
    771 }
    772 
    773 void CPDFSDK_PageView::KillFocusAnnotIfNeeded() {
    774   // if there is a focused annot on the page, we should kill the focus first.
    775   if (CPDFSDK_Annot* focusedAnnot = m_pSDKDoc->GetFocusAnnot()) {
    776     if (pdfium::ContainsValue(m_fxAnnotArray, focusedAnnot))
    777       KillFocusAnnot();
    778   }
    779 }
    780 
    781 FX_BOOL CPDFSDK_PageView::Annot_HasAppearance(CPDF_Annot* pAnnot) {
    782   CPDF_Dictionary* pAnnotDic = pAnnot->GetAnnotDict();
    783   if (pAnnotDic)
    784     return pAnnotDic->KeyExist("AS");
    785   return FALSE;
    786 }
    787 
    788 CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(CPDF_Annot* pPDFAnnot) {
    789   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    790   ASSERT(pEnv);
    791   CPDFSDK_AnnotHandlerMgr* pAnnotHandler = pEnv->GetAnnotHandlerMgr();
    792   CPDFSDK_Annot* pSDKAnnot = pAnnotHandler->NewAnnot(pPDFAnnot, this);
    793   if (!pSDKAnnot)
    794     return nullptr;
    795 
    796   m_fxAnnotArray.push_back(pSDKAnnot);
    797   pAnnotHandler->Annot_OnCreate(pSDKAnnot);
    798   return pSDKAnnot;
    799 }
    800 
    801 #ifdef PDF_ENABLE_XFA
    802 CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(IXFA_Widget* pPDFAnnot) {
    803   if (!pPDFAnnot)
    804     return nullptr;
    805 
    806   CPDFSDK_Annot* pSDKAnnot = GetAnnotByXFAWidget(pPDFAnnot);
    807   if (pSDKAnnot)
    808     return pSDKAnnot;
    809 
    810   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    811   CPDFSDK_AnnotHandlerMgr* pAnnotHandler = pEnv->GetAnnotHandlerMgr();
    812   pSDKAnnot = pAnnotHandler->NewAnnot(pPDFAnnot, this);
    813   if (!pSDKAnnot)
    814     return nullptr;
    815 
    816   m_fxAnnotArray.push_back(pSDKAnnot);
    817   return pSDKAnnot;
    818 }
    819 #endif  // PDF_ENABLE_XFA
    820 
    821 CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(CPDF_Dictionary* pDict) {
    822   return pDict ? AddAnnot(pDict->GetString("Subtype"), pDict) : nullptr;
    823 }
    824 
    825 CPDFSDK_Annot* CPDFSDK_PageView::AddAnnot(const FX_CHAR* lpSubType,
    826                                           CPDF_Dictionary* pDict) {
    827   return NULL;
    828 }
    829 
    830 FX_BOOL CPDFSDK_PageView::DeleteAnnot(CPDFSDK_Annot* pAnnot) {
    831 #ifdef PDF_ENABLE_XFA
    832   if (!pAnnot)
    833     return FALSE;
    834   CPDFXFA_Page* pPage = pAnnot->GetPDFXFAPage();
    835   if (!pPage || (pPage->GetDocument()->GetDocType() != DOCTYPE_STATIC_XFA &&
    836                  pPage->GetDocument()->GetDocType() != DOCTYPE_DYNAMIC_XFA))
    837     return FALSE;
    838 
    839   auto it = std::find(m_fxAnnotArray.begin(), m_fxAnnotArray.end(), pAnnot);
    840   if (it != m_fxAnnotArray.end())
    841     m_fxAnnotArray.erase(it);
    842   if (m_CaptureWidget == pAnnot)
    843     m_CaptureWidget = nullptr;
    844 
    845   return TRUE;
    846 #else   // PDF_ENABLE_XFA
    847   return FALSE;
    848 #endif  // PDF_ENABLE_XFA
    849 }
    850 
    851 CPDF_Document* CPDFSDK_PageView::GetPDFDocument() {
    852   if (m_page) {
    853 #ifdef PDF_ENABLE_XFA
    854     return m_page->GetDocument()->GetPDFDoc();
    855 #else   // PDF_ENABLE_XFA
    856     return m_page->m_pDocument;
    857 #endif  // PDF_ENABLE_XFA
    858   }
    859   return NULL;
    860 }
    861 
    862 #ifdef PDF_ENABLE_XFA
    863 CPDF_Page* CPDFSDK_PageView::GetPDFPage() {
    864   if (m_page) {
    865     return m_page->GetPDFPage();
    866   }
    867   return NULL;
    868 }
    869 #endif  // PDF_ENABLE_XFA
    870 
    871 size_t CPDFSDK_PageView::CountAnnots() const {
    872   return m_fxAnnotArray.size();
    873 }
    874 
    875 CPDFSDK_Annot* CPDFSDK_PageView::GetAnnot(size_t nIndex) {
    876   return nIndex < m_fxAnnotArray.size() ? m_fxAnnotArray[nIndex] : nullptr;
    877 }
    878 
    879 CPDFSDK_Annot* CPDFSDK_PageView::GetAnnotByDict(CPDF_Dictionary* pDict) {
    880   for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
    881     if (pAnnot->GetPDFAnnot()->GetAnnotDict() == pDict)
    882       return pAnnot;
    883   }
    884   return nullptr;
    885 }
    886 
    887 #ifdef PDF_ENABLE_XFA
    888 CPDFSDK_Annot* CPDFSDK_PageView::GetAnnotByXFAWidget(IXFA_Widget* hWidget) {
    889   if (!hWidget)
    890     return nullptr;
    891 
    892   for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
    893     if (pAnnot->GetXFAWidget() == hWidget)
    894       return pAnnot;
    895   }
    896   return nullptr;
    897 }
    898 #endif  // PDF_ENABLE_XFA
    899 
    900 FX_BOOL CPDFSDK_PageView::OnLButtonDown(const CPDF_Point& point,
    901                                         FX_UINT nFlag) {
    902   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    903   ASSERT(pEnv);
    904   CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
    905   if (!pFXAnnot) {
    906     KillFocusAnnot(nFlag);
    907     return FALSE;
    908   }
    909 
    910   CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
    911   FX_BOOL bRet =
    912       pAnnotHandlerMgr->Annot_OnLButtonDown(this, pFXAnnot, nFlag, point);
    913   if (bRet)
    914     SetFocusAnnot(pFXAnnot);
    915   return bRet;
    916 }
    917 
    918 #ifdef PDF_ENABLE_XFA
    919 FX_BOOL CPDFSDK_PageView::OnRButtonDown(const CPDF_Point& point,
    920                                         FX_UINT nFlag) {
    921   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    922   ASSERT(pEnv);
    923   CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
    924   ASSERT(pAnnotHandlerMgr);
    925 
    926   CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
    927 
    928   if (pFXAnnot == NULL)
    929     return FALSE;
    930 
    931   FX_BOOL bRet =
    932       pAnnotHandlerMgr->Annot_OnRButtonDown(this, pFXAnnot, nFlag, point);
    933   if (bRet) {
    934     SetFocusAnnot(pFXAnnot);
    935   }
    936   return TRUE;
    937 }
    938 
    939 FX_BOOL CPDFSDK_PageView::OnRButtonUp(const CPDF_Point& point, FX_UINT nFlag) {
    940   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    941   ASSERT(pEnv);
    942   CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
    943 
    944   CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
    945 
    946   if (pFXAnnot == NULL)
    947     return FALSE;
    948 
    949   FX_BOOL bRet =
    950       pAnnotHandlerMgr->Annot_OnRButtonUp(this, pFXAnnot, nFlag, point);
    951   if (bRet) {
    952     SetFocusAnnot(pFXAnnot);
    953   }
    954   return TRUE;
    955 }
    956 #endif  // PDF_ENABLE_XFA
    957 
    958 FX_BOOL CPDFSDK_PageView::OnLButtonUp(const CPDF_Point& point, FX_UINT nFlag) {
    959   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    960   ASSERT(pEnv);
    961   CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
    962   CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y);
    963   CPDFSDK_Annot* pFocusAnnot = GetFocusAnnot();
    964   FX_BOOL bRet = FALSE;
    965   if (pFocusAnnot && pFocusAnnot != pFXAnnot) {
    966     // Last focus Annot gets a chance to handle the event.
    967     bRet = pAnnotHandlerMgr->Annot_OnLButtonUp(this, pFocusAnnot, nFlag, point);
    968   }
    969   if (pFXAnnot && !bRet)
    970     bRet = pAnnotHandlerMgr->Annot_OnLButtonUp(this, pFXAnnot, nFlag, point);
    971   return bRet;
    972 }
    973 
    974 FX_BOOL CPDFSDK_PageView::OnMouseMove(const CPDF_Point& point, int nFlag) {
    975   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
    976   CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
    977   if (CPDFSDK_Annot* pFXAnnot = GetFXWidgetAtPoint(point.x, point.y)) {
    978     if (m_CaptureWidget && m_CaptureWidget != pFXAnnot) {
    979       m_bExitWidget = TRUE;
    980       m_bEnterWidget = FALSE;
    981       pAnnotHandlerMgr->Annot_OnMouseExit(this, m_CaptureWidget, nFlag);
    982     }
    983     m_CaptureWidget = (CPDFSDK_Widget*)pFXAnnot;
    984     m_bOnWidget = TRUE;
    985     if (!m_bEnterWidget) {
    986       m_bEnterWidget = TRUE;
    987       m_bExitWidget = FALSE;
    988       pAnnotHandlerMgr->Annot_OnMouseEnter(this, pFXAnnot, nFlag);
    989     }
    990     pAnnotHandlerMgr->Annot_OnMouseMove(this, pFXAnnot, nFlag, point);
    991     return TRUE;
    992   }
    993   if (m_bOnWidget) {
    994     m_bOnWidget = FALSE;
    995     m_bExitWidget = TRUE;
    996     m_bEnterWidget = FALSE;
    997     if (m_CaptureWidget) {
    998       pAnnotHandlerMgr->Annot_OnMouseExit(this, m_CaptureWidget, nFlag);
    999       m_CaptureWidget = NULL;
   1000     }
   1001   }
   1002   return FALSE;
   1003 }
   1004 
   1005 FX_BOOL CPDFSDK_PageView::OnMouseWheel(double deltaX,
   1006                                        double deltaY,
   1007                                        const CPDF_Point& point,
   1008                                        int nFlag) {
   1009   if (CPDFSDK_Annot* pAnnot = GetFXWidgetAtPoint(point.x, point.y)) {
   1010     CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
   1011     CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
   1012     return pAnnotHandlerMgr->Annot_OnMouseWheel(this, pAnnot, nFlag,
   1013                                                 (int)deltaY, point);
   1014   }
   1015   return FALSE;
   1016 }
   1017 
   1018 FX_BOOL CPDFSDK_PageView::OnChar(int nChar, FX_UINT nFlag) {
   1019   if (CPDFSDK_Annot* pAnnot = GetFocusAnnot()) {
   1020     CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
   1021     CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
   1022     return pAnnotHandlerMgr->Annot_OnChar(pAnnot, nChar, nFlag);
   1023   }
   1024 
   1025   return FALSE;
   1026 }
   1027 
   1028 FX_BOOL CPDFSDK_PageView::OnKeyDown(int nKeyCode, int nFlag) {
   1029   if (CPDFSDK_Annot* pAnnot = GetFocusAnnot()) {
   1030     CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
   1031     CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
   1032     return pAnnotHandlerMgr->Annot_OnKeyDown(pAnnot, nKeyCode, nFlag);
   1033   }
   1034   return FALSE;
   1035 }
   1036 
   1037 FX_BOOL CPDFSDK_PageView::OnKeyUp(int nKeyCode, int nFlag) {
   1038   return FALSE;
   1039 }
   1040 
   1041 void CPDFSDK_PageView::LoadFXAnnots() {
   1042   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
   1043 #ifdef PDF_ENABLE_XFA
   1044   CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
   1045 #else
   1046   FX_BOOL enableAPUpdate = CPDF_InterForm::UpdatingAPEnabled();
   1047   // Disable the default AP construction.
   1048   CPDF_InterForm::EnableUpdateAP(FALSE);
   1049   m_pAnnotList.reset(new CPDF_AnnotList(m_page));
   1050   CPDF_InterForm::EnableUpdateAP(enableAPUpdate);
   1051   const size_t nCount = m_pAnnotList->Count();
   1052 #endif  // PDF_ENABLE_XFA
   1053 
   1054   SetLock(TRUE);
   1055 
   1056 #ifdef PDF_ENABLE_XFA
   1057   m_page->AddRef();
   1058   if (m_pSDKDoc->GetXFADocument()->GetDocType() == DOCTYPE_DYNAMIC_XFA) {
   1059     IXFA_PageView* pageView = NULL;
   1060     pageView = m_page->GetXFAPageView();
   1061     ASSERT(pageView != NULL);
   1062 
   1063     IXFA_WidgetIterator* pWidgetHander = pageView->CreateWidgetIterator(
   1064         XFA_TRAVERSEWAY_Form, XFA_WIDGETFILTER_Visible |
   1065                                   XFA_WIDGETFILTER_Viewable |
   1066                                   XFA_WIDGETFILTER_AllType);
   1067     if (!pWidgetHander) {
   1068       m_page->Release();
   1069       SetLock(FALSE);
   1070       return;
   1071     }
   1072 
   1073     while (IXFA_Widget* pXFAAnnot = pWidgetHander->MoveToNext()) {
   1074       CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pXFAAnnot, this);
   1075       if (!pAnnot)
   1076         continue;
   1077 
   1078       m_fxAnnotArray.push_back(pAnnot);
   1079       pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
   1080     }
   1081     pWidgetHander->Release();
   1082   } else {
   1083     CPDF_Page* pPage = m_page->GetPDFPage();
   1084     ASSERT(pPage != NULL);
   1085     FX_BOOL enableAPUpdate = CPDF_InterForm::UpdatingAPEnabled();
   1086     // Disable the default AP construction.
   1087     CPDF_InterForm::EnableUpdateAP(FALSE);
   1088     m_pAnnotList.reset(new CPDF_AnnotList(pPage));
   1089     CPDF_InterForm::EnableUpdateAP(enableAPUpdate);
   1090 
   1091     const size_t nCount = m_pAnnotList->Count();
   1092     for (size_t i = 0; i < nCount; ++i) {
   1093       CPDF_Annot* pPDFAnnot = m_pAnnotList->GetAt(i);
   1094       CheckUnSupportAnnot(GetPDFDocument(), pPDFAnnot);
   1095 
   1096       CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pPDFAnnot, this);
   1097       if (!pAnnot)
   1098         continue;
   1099       m_fxAnnotArray.push_back(pAnnot);
   1100       pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
   1101     }
   1102   }
   1103   m_page->Release();
   1104 #else   // PDF_ENABLE_XFA
   1105   for (size_t i = 0; i < nCount; ++i) {
   1106     CPDF_Annot* pPDFAnnot = m_pAnnotList->GetAt(i);
   1107     CPDF_Document* pDoc = GetPDFDocument();
   1108     CheckUnSupportAnnot(pDoc, pPDFAnnot);
   1109     CPDFSDK_AnnotHandlerMgr* pAnnotHandlerMgr = pEnv->GetAnnotHandlerMgr();
   1110     CPDFSDK_Annot* pAnnot = pAnnotHandlerMgr->NewAnnot(pPDFAnnot, this);
   1111     if (!pAnnot)
   1112       continue;
   1113     m_fxAnnotArray.push_back(pAnnot);
   1114     pAnnotHandlerMgr->Annot_OnLoad(pAnnot);
   1115   }
   1116 #endif  // PDF_ENABLE_XFA
   1117 
   1118   SetLock(FALSE);
   1119 }
   1120 
   1121 void CPDFSDK_PageView::UpdateRects(CFX_RectArray& rects) {
   1122   for (int i = 0; i < rects.GetSize(); i++) {
   1123     CPDF_Rect rc = rects.GetAt(i);
   1124     CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
   1125     pEnv->FFI_Invalidate(m_page, rc.left, rc.top, rc.right, rc.bottom);
   1126   }
   1127 }
   1128 
   1129 void CPDFSDK_PageView::UpdateView(CPDFSDK_Annot* pAnnot) {
   1130   CPDF_Rect rcWindow = pAnnot->GetRect();
   1131   CPDFDoc_Environment* pEnv = m_pSDKDoc->GetEnv();
   1132   pEnv->FFI_Invalidate(m_page, rcWindow.left, rcWindow.top, rcWindow.right,
   1133                        rcWindow.bottom);
   1134 }
   1135 
   1136 int CPDFSDK_PageView::GetPageIndex() {
   1137   if (m_page) {
   1138 #ifdef PDF_ENABLE_XFA
   1139     CPDF_Dictionary* pDic = m_page->GetPDFPage()->m_pFormDict;
   1140 #else   // PDF_ENABLE_XFA
   1141     CPDF_Dictionary* pDic = m_page->m_pFormDict;
   1142 #endif  // PDF_ENABLE_XFA
   1143     CPDF_Document* pDoc = m_pSDKDoc->GetPDFDocument();
   1144     if (pDoc && pDic) {
   1145       return pDoc->GetPageIndex(pDic->GetObjNum());
   1146     }
   1147   }
   1148   return -1;
   1149 }
   1150 
   1151 bool CPDFSDK_PageView::IsValidAnnot(const CPDF_Annot* p) const {
   1152   if (!p)
   1153     return false;
   1154 
   1155   const auto& annots = m_pAnnotList->All();
   1156   return pdfium::ContainsValue(annots, p);
   1157 }
   1158 
   1159 CPDFSDK_Annot* CPDFSDK_PageView::GetFocusAnnot() {
   1160   CPDFSDK_Annot* pFocusAnnot = m_pSDKDoc->GetFocusAnnot();
   1161   if (!pFocusAnnot)
   1162     return nullptr;
   1163 
   1164   for (CPDFSDK_Annot* pAnnot : m_fxAnnotArray) {
   1165     if (pAnnot == pFocusAnnot)
   1166       return pAnnot;
   1167   }
   1168   return nullptr;
   1169 }
   1170