diff options
Diffstat (limited to 'fpdfsdk/src/fpdf_dataavail.cpp')
| -rw-r--r-- | fpdfsdk/src/fpdf_dataavail.cpp | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/fpdfsdk/src/fpdf_dataavail.cpp b/fpdfsdk/src/fpdf_dataavail.cpp new file mode 100644 index 0000000000..9e56c2e0c8 --- /dev/null +++ b/fpdfsdk/src/fpdf_dataavail.cpp @@ -0,0 +1,165 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../include/fsdk_define.h"
+#include "../include/fpdf_dataavail.h"
+
+extern void ProcessParseError(FX_DWORD err_code);
+class CFPDF_FileAvailWrap : public IFX_FileAvail
+{
+public:
+ CFPDF_FileAvailWrap()
+ {
+ m_pfileAvail = NULL;
+ }
+
+ void Set(FX_FILEAVAIL* pfileAvail)
+ {
+ m_pfileAvail = pfileAvail;
+ }
+
+ virtual FX_BOOL IsDataAvail( FX_FILESIZE offset, FX_DWORD size)
+ {
+ return m_pfileAvail->IsDataAvail(m_pfileAvail, offset, size);
+ }
+
+private:
+ FX_FILEAVAIL* m_pfileAvail;
+};
+
+class CFPDF_FileAccessWrap : public IFX_FileRead
+{
+public:
+ CFPDF_FileAccessWrap()
+ {
+ m_pFileAccess = NULL;
+ }
+
+ void Set(FPDF_FILEACCESS* pFile)
+ {
+ m_pFileAccess = pFile;
+ }
+
+ virtual FX_FILESIZE GetSize()
+ {
+ return m_pFileAccess->m_FileLen;
+ }
+
+ virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size)
+ {
+ return m_pFileAccess->m_GetBlock(m_pFileAccess->m_Param, offset, (FX_LPBYTE)buffer, size);
+ }
+
+ virtual void Release()
+ {
+ }
+
+private:
+ FPDF_FILEACCESS* m_pFileAccess;
+};
+
+class CFPDF_DownloadHintsWrap : public IFX_DownloadHints
+{
+public:
+ CFPDF_DownloadHintsWrap(FX_DOWNLOADHINTS* pDownloadHints)
+ {
+ m_pDownloadHints = pDownloadHints;
+ }
+public:
+ virtual void AddSegment(FX_FILESIZE offset, FX_DWORD size)
+ {
+ m_pDownloadHints->AddSegment(m_pDownloadHints, offset, size);
+ }
+private:
+ FX_DOWNLOADHINTS* m_pDownloadHints;
+};
+
+class CFPDF_DataAvail : public CFX_Object
+{
+public:
+ CFPDF_DataAvail()
+ {
+ m_pDataAvail = NULL;
+ }
+
+ ~CFPDF_DataAvail()
+ {
+ if (m_pDataAvail) delete m_pDataAvail;
+ }
+
+ CPDF_DataAvail* m_pDataAvail;
+ CFPDF_FileAvailWrap m_FileAvail;
+ CFPDF_FileAccessWrap m_FileRead;
+};
+
+DLLEXPORT FPDF_AVAIL STDCALL FPDFAvail_Create(FX_FILEAVAIL* file_avail, FPDF_FILEACCESS* file)
+{
+ CFPDF_DataAvail* pAvail = FX_NEW CFPDF_DataAvail;
+ pAvail->m_FileAvail.Set(file_avail);
+ pAvail->m_FileRead.Set(file);
+ pAvail->m_pDataAvail = FX_NEW CPDF_DataAvail(&pAvail->m_FileAvail, &pAvail->m_FileRead);
+ return pAvail;
+}
+
+DLLEXPORT void STDCALL FPDFAvail_Destroy(FPDF_AVAIL avail)
+{
+ if (avail == NULL) return;
+ delete (CFPDF_DataAvail*)avail;
+}
+
+DLLEXPORT int STDCALL FPDFAvail_IsDocAvail(FPDF_AVAIL avail, FX_DOWNLOADHINTS* hints)
+{
+ if (avail == NULL || hints == NULL) return 0;
+ CFPDF_DownloadHintsWrap hints_wrap(hints);
+ return ((CFPDF_DataAvail*)avail)->m_pDataAvail->IsDocAvail(&hints_wrap);
+}
+
+extern void CheckUnSupportError(CPDF_Document * pDoc, FX_DWORD err_code);
+
+DLLEXPORT FPDF_DOCUMENT STDCALL FPDFAvail_GetDocument(FPDF_AVAIL avail, FPDF_BYTESTRING password)
+{
+ if (avail == NULL) return NULL;
+ CPDF_Parser* pParser = FX_NEW CPDF_Parser;
+ pParser->SetPassword(password);
+
+ FX_DWORD err_code = pParser->StartAsynParse(((CFPDF_DataAvail*)avail)->m_pDataAvail->GetFileRead());
+ if (err_code) {
+ delete pParser;
+ ProcessParseError(err_code);
+ return NULL;
+ }
+ ((CFPDF_DataAvail*)avail)->m_pDataAvail->SetDocument(pParser->GetDocument());
+ CheckUnSupportError(pParser->GetDocument(), FPDF_ERR_SUCCESS);
+ return pParser->GetDocument();
+}
+
+DLLEXPORT int STDCALL FPDFAvail_GetFirstPageNum(FPDF_DOCUMENT doc)
+{
+ if (doc == NULL) return 0;
+ CPDF_Document* pDoc = (CPDF_Document*)doc;
+ return ((CPDF_Parser*)pDoc->GetParser())->GetFirstPageNo();
+}
+
+DLLEXPORT int STDCALL FPDFAvail_IsPageAvail(FPDF_AVAIL avail, int page_index, FX_DOWNLOADHINTS* hints)
+{
+ if (avail == NULL || hints == NULL) return 0;
+ CFPDF_DownloadHintsWrap hints_wrap(hints);
+ return ((CFPDF_DataAvail*)avail)->m_pDataAvail->IsPageAvail(page_index, &hints_wrap);
+}
+
+DLLEXPORT int STDCALL FPDFAvail_IsFormAvail(FPDF_AVAIL avail, FX_DOWNLOADHINTS* hints)
+{
+ if (avail == NULL || hints == NULL) return -1;
+ CFPDF_DownloadHintsWrap hints_wrap(hints);
+ return ((CFPDF_DataAvail*)avail)->m_pDataAvail->IsFormAvail(&hints_wrap);
+}
+
+DLLEXPORT FPDF_BOOL STDCALL FPDFAvail_IsLinearized(FPDF_AVAIL avail)
+{
+ if (avail == NULL) return -1;
+ return ((CFPDF_DataAvail*)avail)->m_pDataAvail->IsLinearizedPDF();
+
+}
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