1 // Copyright 2016 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 #ifndef FPDFSDK_CPDFSDK_FORMFILLENVIRONMENT_H_ 8 #define FPDFSDK_CPDFSDK_FORMFILLENVIRONMENT_H_ 9 10 #include <map> 11 #include <memory> 12 #include <vector> 13 14 #include "core/fpdfapi/page/cpdf_page.h" 15 #include "core/fpdfapi/parser/cpdf_document.h" 16 #include "core/fpdfdoc/cpdf_occontext.h" 17 #include "core/fxcrt/observable.h" 18 #include "fpdfsdk/cfx_systemhandler.h" 19 #include "fpdfsdk/cpdfsdk_annot.h" 20 #include "fpdfsdk/fsdk_define.h" 21 #include "public/fpdf_formfill.h" 22 #include "public/fpdf_fwlevent.h" 23 24 class CFFL_InteractiveFormFiller; 25 class CFX_SystemHandler; 26 class CPDFSDK_ActionHandler; 27 class CPDFSDK_AnnotHandlerMgr; 28 class CPDFSDK_InterForm; 29 class CPDFSDK_PageView; 30 class IJS_Runtime; 31 32 // The CPDFSDK_FormFillEnvironment is "owned" by the embedder across the 33 // C API as a FPDF_FormHandle, and may pop out of existence at any time, 34 // so long as the associated embedder-owned FPDF_Document outlives it. 35 // Pointers from objects in the FPDF_Document ownership hierarchy should 36 // be ObservedPtr<> so as to clear themselves when the embedder "exits" 37 // the form fill environment. Pointers from objects in this ownership 38 // heirarcy to objects in the FPDF_Document ownership hierarcy should be 39 // UnownedPtr<>, as should pointers from objects in this ownership 40 // hierarcy back to the form fill environment itself, so as to flag any 41 // lingering lifetime issues via the memory tools. 42 43 class CPDFSDK_FormFillEnvironment 44 : public Observable<CPDFSDK_FormFillEnvironment> { 45 public: 46 CPDFSDK_FormFillEnvironment(UnderlyingDocumentType* pDoc, 47 FPDF_FORMFILLINFO* pFFinfo); 48 ~CPDFSDK_FormFillEnvironment(); 49 50 static bool IsSHIFTKeyDown(uint32_t nFlag) { 51 return !!(nFlag & FWL_EVENTFLAG_ShiftKey); 52 } 53 static bool IsCTRLKeyDown(uint32_t nFlag) { 54 return !!(nFlag & FWL_EVENTFLAG_ControlKey); 55 } 56 static bool IsALTKeyDown(uint32_t nFlag) { 57 return !!(nFlag & FWL_EVENTFLAG_AltKey); 58 } 59 60 CPDFSDK_PageView* GetPageView(UnderlyingPageType* pPage, bool renew); 61 CPDFSDK_PageView* GetPageView(int nIndex); 62 CPDFSDK_PageView* GetCurrentView(); 63 void RemovePageView(UnderlyingPageType* pPage); 64 void UpdateAllViews(CPDFSDK_PageView* pSender, CPDFSDK_Annot* pAnnot); 65 66 CPDFSDK_Annot* GetFocusAnnot() { return m_pFocusAnnot.Get(); } 67 bool SetFocusAnnot(CPDFSDK_Annot::ObservedPtr* pAnnot); 68 bool KillFocusAnnot(uint32_t nFlag); 69 void ClearAllFocusedAnnots(); 70 71 bool ExtractPages(const std::vector<uint16_t>& arrExtraPages, 72 CPDF_Document* pDstDoc); 73 bool InsertPages(int nInsertAt, 74 const CPDF_Document* pSrcDoc, 75 const std::vector<uint16_t>& arrSrcPages); 76 bool ReplacePages(int nPage, 77 const CPDF_Document* pSrcDoc, 78 const std::vector<uint16_t>& arrSrcPages); 79 80 int GetPageCount() const { return m_pUnderlyingDoc->GetPageCount(); } 81 bool GetPermissions(int nFlag) const; 82 83 bool GetChangeMark() const { return m_bChangeMask; } 84 void SetChangeMark() { m_bChangeMask = true; } 85 void ClearChangeMark() { m_bChangeMask = false; } 86 87 void ProcJavascriptFun(); 88 bool ProcOpenAction(); 89 90 void Invalidate(UnderlyingPageType* page, const FX_RECT& rect); 91 void OutputSelectedRect(UnderlyingPageType* page, const CFX_FloatRect& rect); 92 93 void SetCursor(int nCursorType); 94 int SetTimer(int uElapse, TimerCallback lpTimerFunc); 95 void KillTimer(int nTimerID); 96 FX_SYSTEMTIME GetLocalTime() const; 97 98 void OnChange(); 99 100 FPDF_PAGE GetCurrentPage(UnderlyingDocumentType* document); 101 102 void ExecuteNamedAction(const char* namedAction); 103 void OnSetFieldInputFocus(FPDF_WIDESTRING focusText, 104 FPDF_DWORD nTextLen, 105 bool bFocus); 106 void DoURIAction(const char* bsURI); 107 void DoGoToAction(int nPageIndex, 108 int zoomMode, 109 float* fPosArray, 110 int sizeOfArray); 111 112 UnderlyingDocumentType* GetUnderlyingDocument() const { 113 return m_pUnderlyingDoc.Get(); 114 } 115 116 #ifdef PDF_ENABLE_XFA 117 CPDF_Document* GetPDFDocument() const { 118 return m_pUnderlyingDoc ? m_pUnderlyingDoc->GetPDFDoc() : nullptr; 119 } 120 121 CPDFXFA_Context* GetXFAContext() const { return m_pUnderlyingDoc.Get(); } 122 void ResetXFADocument() { m_pUnderlyingDoc = nullptr; } 123 124 int GetPageViewCount() const { return m_PageMap.size(); } 125 126 void DisplayCaret(CPDFXFA_Page* page, 127 FPDF_BOOL bVisible, 128 double left, 129 double top, 130 double right, 131 double bottom); 132 int GetCurrentPageIndex(CPDFXFA_Context* document); 133 void SetCurrentPage(CPDFXFA_Context* document, int iCurPage); 134 135 // TODO(dsinclair): This should probably change to PDFium? 136 WideString FFI_GetAppName() const { return WideString(L"Acrobat"); } 137 138 WideString GetPlatform(); 139 void GotoURL(CPDFXFA_Context* document, const WideStringView& wsURL); 140 void GetPageViewRect(CPDFXFA_Page* page, FS_RECTF& dstRect); 141 bool PopupMenu(CPDFXFA_Page* page, 142 FPDF_WIDGET hWidget, 143 int menuFlag, 144 CFX_PointF pt); 145 146 void Alert(FPDF_WIDESTRING Msg, FPDF_WIDESTRING Title, int Type, int Icon); 147 void EmailTo(FPDF_FILEHANDLER* fileHandler, 148 FPDF_WIDESTRING pTo, 149 FPDF_WIDESTRING pSubject, 150 FPDF_WIDESTRING pCC, 151 FPDF_WIDESTRING pBcc, 152 FPDF_WIDESTRING pMsg); 153 void UploadTo(FPDF_FILEHANDLER* fileHandler, 154 int fileFlag, 155 FPDF_WIDESTRING uploadTo); 156 FPDF_FILEHANDLER* OpenFile(int fileType, 157 FPDF_WIDESTRING wsURL, 158 const char* mode); 159 RetainPtr<IFX_SeekableReadStream> DownloadFromURL(const wchar_t* url); 160 WideString PostRequestURL(const wchar_t* wsURL, 161 const wchar_t* wsData, 162 const wchar_t* wsContentType, 163 const wchar_t* wsEncode, 164 const wchar_t* wsHeader); 165 FPDF_BOOL PutRequestURL(const wchar_t* wsURL, 166 const wchar_t* wsData, 167 const wchar_t* wsEncode); 168 WideString GetLanguage(); 169 170 void PageEvent(int iPageCount, uint32_t dwEventType) const; 171 #else // PDF_ENABLE_XFA 172 CPDF_Document* GetPDFDocument() const { return m_pUnderlyingDoc.Get(); } 173 #endif // PDF_ENABLE_XFA 174 175 int JS_appAlert(const wchar_t* Msg, 176 const wchar_t* Title, 177 uint32_t Type, 178 uint32_t Icon); 179 int JS_appResponse(const wchar_t* Question, 180 const wchar_t* Title, 181 const wchar_t* Default, 182 const wchar_t* cLabel, 183 FPDF_BOOL bPassword, 184 void* response, 185 int length); 186 void JS_appBeep(int nType); 187 WideString JS_fieldBrowse(); 188 WideString JS_docGetFilePath(); 189 void JS_docSubmitForm(void* formData, int length, const wchar_t* URL); 190 void JS_docmailForm(void* mailData, 191 int length, 192 FPDF_BOOL bUI, 193 const wchar_t* To, 194 const wchar_t* Subject, 195 const wchar_t* CC, 196 const wchar_t* BCC, 197 const wchar_t* Msg); 198 void JS_docprint(FPDF_BOOL bUI, 199 int nStart, 200 int nEnd, 201 FPDF_BOOL bSilent, 202 FPDF_BOOL bShrinkToFit, 203 FPDF_BOOL bPrintAsImage, 204 FPDF_BOOL bReverse, 205 FPDF_BOOL bAnnotations); 206 void JS_docgotoPage(int nPageNum); 207 208 bool IsJSInitiated() const { return m_pInfo && m_pInfo->m_pJsPlatform; } 209 ByteString GetAppName() const { return ""; } 210 CFX_SystemHandler* GetSysHandler() const { return m_pSysHandler.get(); } 211 FPDF_FORMFILLINFO* GetFormFillInfo() const { return m_pInfo; } 212 213 // Creates if not present. 214 CFFL_InteractiveFormFiller* GetInteractiveFormFiller(); 215 CPDFSDK_AnnotHandlerMgr* GetAnnotHandlerMgr(); // Creates if not present. 216 IJS_Runtime* GetJSRuntime(); // Creates if not present. 217 CPDFSDK_ActionHandler* GetActionHandler(); // Creates if not present. 218 CPDFSDK_InterForm* GetInterForm(); // Creates if not present. 219 220 private: 221 UnderlyingPageType* GetPage(int nIndex); 222 223 FPDF_FORMFILLINFO* const m_pInfo; 224 std::unique_ptr<CPDFSDK_AnnotHandlerMgr> m_pAnnotHandlerMgr; 225 std::unique_ptr<CPDFSDK_ActionHandler> m_pActionHandler; 226 std::unique_ptr<IJS_Runtime> m_pJSRuntime; 227 std::map<UnderlyingPageType*, std::unique_ptr<CPDFSDK_PageView>> m_PageMap; 228 std::unique_ptr<CPDFSDK_InterForm> m_pInterForm; 229 CPDFSDK_Annot::ObservedPtr m_pFocusAnnot; 230 UnownedPtr<UnderlyingDocumentType> m_pUnderlyingDoc; 231 std::unique_ptr<CFFL_InteractiveFormFiller> m_pFormFiller; 232 std::unique_ptr<CFX_SystemHandler> m_pSysHandler; 233 bool m_bChangeMask; 234 bool m_bBeingDestroyed; 235 }; 236 237 #endif // FPDFSDK_CPDFSDK_FORMFILLENVIRONMENT_H_ 238
