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:
CFX_SystemHandler(CPDFDoc_Environment * pEnv)33   explicit CFX_SystemHandler(CPDFDoc_Environment* pEnv)
34       : m_pEnv(pEnv), m_nCharSet(-1) {}
~CFX_SystemHandler()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;
GetClipboardText(FX_HWND hWnd)42   CFX_WideString GetClipboardText(FX_HWND hWnd) override { return L""; }
SetClipboardText(FX_HWND hWnd,CFX_WideString string)43   FX_BOOL SetClipboardText(FX_HWND hWnd, CFX_WideString string) override {
44     return FALSE;
45   }
ClientToScreen(FX_HWND hWnd,int32_t & x,int32_t & y)46   void ClientToScreen(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
ScreenToClient(FX_HWND hWnd,int32_t & x,int32_t & y)47   void ScreenToClient(FX_HWND hWnd, int32_t& x, int32_t& y) override {}
48   void SetCursor(int32_t nCursorType) override;
CreatePopupMenu()49   FX_HMENU CreatePopupMenu() override { return NULL; }
AppendMenuItem(FX_HMENU hMenu,int32_t nIDNewItem,CFX_WideString string)50   FX_BOOL AppendMenuItem(FX_HMENU hMenu,
51                          int32_t nIDNewItem,
52                          CFX_WideString string) override {
53     return FALSE;
54   }
EnableMenuItem(FX_HMENU hMenu,int32_t nIDItem,FX_BOOL bEnabled)55   FX_BOOL EnableMenuItem(FX_HMENU hMenu,
56                          int32_t nIDItem,
57                          FX_BOOL bEnabled) override {
58     return FALSE;
59   }
TrackPopupMenu(FX_HMENU hMenu,int32_t x,int32_t y,FX_HWND hParent)60   int32_t TrackPopupMenu(FX_HMENU hMenu,
61                          int32_t x,
62                          int32_t y,
63                          FX_HWND hParent) override {
64     return -1;
65   }
DestroyMenu(FX_HMENU hMenu)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;
IsSHIFTKeyDown(FX_DWORD nFlag)75   FX_BOOL IsSHIFTKeyDown(FX_DWORD nFlag) override {
76     return m_pEnv->FFI_IsSHIFTKeyDown(nFlag);
77   }
IsCTRLKeyDown(FX_DWORD nFlag)78   FX_BOOL IsCTRLKeyDown(FX_DWORD nFlag) override {
79     return m_pEnv->FFI_IsCTRLKeyDown(nFlag);
80   }
IsALTKeyDown(FX_DWORD nFlag)81   FX_BOOL IsALTKeyDown(FX_DWORD nFlag) override {
82     return m_pEnv->FFI_IsALTKeyDown(nFlag);
83   }
IsINSERTKeyDown(FX_DWORD nFlag)84   FX_BOOL IsINSERTKeyDown(FX_DWORD nFlag) override {
85     return m_pEnv->FFI_IsINSERTKeyDown(nFlag);
86   }
87   FX_SYSTEMTIME GetLocalTime() override;
GetCharSet()88   int32_t GetCharSet() override { return m_nCharSet; }
SetCharSet(int32_t 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 
SetCursor(int32_t nCursorType)96 void CFX_SystemHandler::SetCursor(int32_t nCursorType) {
97   m_pEnv->FFI_SetCursor(nCursorType);
98 }
99 
InvalidateRect(FX_HWND hWnd,FX_RECT rect)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 }
OutputSelectedRect(void * pFormFiller,CPDF_Rect & rect)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 
IsSelectionImplemented()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 
GetNativeTrueTypeFont(int32_t nCharset)143 CFX_ByteString CFX_SystemHandler::GetNativeTrueTypeFont(int32_t nCharset) {
144   return "";
145 }
146 
FindNativeTrueTypeFont(int32_t nCharset,CFX_ByteString sFontFaceName)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 
CharSet2CP(int charset)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 }
AddNativeTrueTypeFontToPDF(CPDF_Document * pDoc,CFX_ByteString sFontFaceName,uint8_t nCharset)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 
SetTimer(int32_t uElapse,TimerCallback lpTimerFunc)199 int32_t CFX_SystemHandler::SetTimer(int32_t uElapse,
200                                     TimerCallback lpTimerFunc) {
201   return m_pEnv->FFI_SetTimer(uElapse, lpTimerFunc);
202 }
KillTimer(int32_t nID)203 void CFX_SystemHandler::KillTimer(int32_t nID) {
204   m_pEnv->FFI_KillTimer(nID);
205 }
206 
GetLocalTime()207 FX_SYSTEMTIME CFX_SystemHandler::GetLocalTime() {
208   return m_pEnv->FFI_GetLocalTime();
209 }
210 
CPDFDoc_Environment(UnderlyingDocumentType * pDoc,FPDF_FORMFILLINFO * pFFinfo)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 
~CPDFDoc_Environment()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 
JS_appAlert(const FX_WCHAR * Msg,const FX_WCHAR * Title,FX_UINT Type,FX_UINT Icon)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 
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)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 
JS_fieldBrowse()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 
JS_docGetFilePath()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 
JS_docSubmitForm(void * formData,int length,const FX_WCHAR * URL)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 
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)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 
GetJSRuntime()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 
GetAnnotHandlerMgr()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 
GetActionHander()381 CPDFSDK_ActionHandler* CPDFDoc_Environment::GetActionHander() {
382   if (!m_pActionHandler)
383     m_pActionHandler.reset(new CPDFSDK_ActionHandler());
384   return m_pActionHandler.get();
385 }
386 
GetIFormFiller()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 
CPDFSDK_Document(UnderlyingDocumentType * pDoc,CPDFDoc_Environment * pEnv)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 
~CPDFSDK_Document()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 
GetPageView(UnderlyingPageType * pUnderlyingPage,FX_BOOL ReNew)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 
GetCurrentView()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 
GetPageView(int nIndex)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 
ProcJavascriptFun()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 
ProcOpenAction()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 
GetOCContext()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 
RemovePageView(UnderlyingPageType * pUnderlyingPage)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 
GetPage(int nIndex)507 UnderlyingPageType* CPDFSDK_Document::GetPage(int nIndex) {
508   return UnderlyingFromFPDFPage(m_pEnv->FFI_GetPage(m_pDoc, nIndex));
509 }
510 
GetInterForm()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 
UpdateAllViews(CPDFSDK_PageView * pSender,CPDFSDK_Annot * pAnnot)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 
GetFocusAnnot()527 CPDFSDK_Annot* CPDFSDK_Document::GetFocusAnnot() {
528   return m_pFocusAnnot;
529 }
530 
SetFocusAnnot(CPDFSDK_Annot * pAnnot,FX_UINT nFlag)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 
KillFocusAnnot(FX_UINT nFlag)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 
OnCloseDocument()598 void CPDFSDK_Document::OnCloseDocument() {
599   KillFocusAnnot();
600 }
601 
GetPermissions(int nFlag)602 FX_BOOL CPDFSDK_Document::GetPermissions(int nFlag) {
603   return GetPDFDocument()->GetUserPermissions() & nFlag;
604 }
605 
GetJsRuntime()606 IJS_Runtime* CPDFSDK_Document::GetJsRuntime() {
607   return m_pEnv->GetJSRuntime();
608 }
609 
GetPath()610 CFX_WideString CPDFSDK_Document::GetPath() {
611   return m_pEnv->JS_docGetFilePath();
612 }
613 
CPDFSDK_PageView(CPDFSDK_Document * pSDKDoc,UnderlyingPageType * page)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 
~CPDFSDK_PageView()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 
PageView_OnDraw(CFX_RenderDevice * pDevice,CFX_Matrix * pUser2Device,CPDF_RenderOptions * pOptions,const FX_RECT & pClip)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