C++ CFX_WideString::UTF16LE_Encode方法代码示例

DLLEXPORT void STDCALL FPDF_Widget_Cut(FPDF_DOCUMENT document,
                                       FPDF_WIDGET hWidget,
                                       FPDF_WIDESTRING wsText,
                                       FPDF_DWORD* size) {
  if (NULL == hWidget || NULL == document)
    return;
  CPDFXFA_Document* pDocument = (CPDFXFA_Document*)document;
  if (pDocument->GetDocType() != XFA_DOCTYPE_Dynamic &&
      pDocument->GetDocType() != XFA_DOCTYPE_Static)
    return;

  IXFA_MenuHandler* pXFAMenuHander =
      CPDFXFA_App::GetInstance()->GetXFAApp()->GetMenuHandler();
  if (pXFAMenuHander == NULL)
    return;

  CFX_WideString wsCpText;
  pXFAMenuHander->Cut((IXFA_Widget*)hWidget, wsCpText);

  CFX_ByteString bsCpText = wsCpText.UTF16LE_Encode();
  int len = bsCpText.GetLength() / sizeof(unsigned short);
  if (wsText == NULL) {
    *size = len;
    return;
  }

  int real_size = len < *size ? len : *size;
  if (real_size > 0) {
    FXSYS_memcpy((void*)wsText,
                 bsCpText.GetBuffer(real_size * sizeof(unsigned short)),
                 real_size * sizeof(unsigned short));
    bsCpText.ReleaseBuffer(real_size * sizeof(unsigned short));
  }
  *size = real_size;
}

DLLEXPORT int STDCALL FPDFText_GetBoundedText(FPDF_TEXTPAGE text_page,
                                              double left,
                                              double top,
                                              double right,
                                              double bottom,
                                              unsigned short* buffer,
                                              int buflen) {
  if (!text_page)
    return 0;

  CPDF_TextPage* textpage = CPDFTextPageFromFPDFTextPage(text_page);
  CFX_FloatRect rect((FX_FLOAT)left, (FX_FLOAT)bottom, (FX_FLOAT)right,
                     (FX_FLOAT)top);
  CFX_WideString str = textpage->GetTextByRect(rect);

  if (buflen <= 0 || !buffer)
    return str.GetLength();

  CFX_ByteString cbUTF16Str = str.UTF16LE_Encode();
  int len = cbUTF16Str.GetLength() / sizeof(unsigned short);
  int size = buflen > len ? len : buflen;
  FXSYS_memcpy(buffer, cbUTF16Str.GetBuffer(size * sizeof(unsigned short)),
               size * sizeof(unsigned short));
  cbUTF16Str.ReleaseBuffer(size * sizeof(unsigned short));

  return size;
}

DLLEXPORT void STDCALL FPDF_Widget_Cut(FPDF_DOCUMENT document,
                                       FPDF_WIDGET hWidget,
                                       FPDF_WIDESTRING wsText,
                                       FPDF_DWORD* size) {
  if (!hWidget || !document)
    return;

  CPDFXFA_Context* pContext = static_cast<CPDFXFA_Context*>(document);
  if (pContext->GetDocType() != XFA_DOCTYPE_Dynamic &&
      pContext->GetDocType() != XFA_DOCTYPE_Static)
    return;

  CFX_WideString wsCpText;
  static_cast<CXFA_FFWidget*>(hWidget)->Cut(wsCpText);

  CFX_ByteString bsCpText = wsCpText.UTF16LE_Encode();
  uint32_t len = bsCpText.GetLength() / sizeof(unsigned short);
  if (!wsText) {
    *size = len;
    return;
  }

  uint32_t real_size = len < *size ? len : *size;
  if (real_size > 0) {
    FXSYS_memcpy((void*)wsText,
                 bsCpText.GetBuffer(real_size * sizeof(unsigned short)),
                 real_size * sizeof(unsigned short));
    bsCpText.ReleaseBuffer(real_size * sizeof(unsigned short));
  }
  *size = real_size;
}

bool CPDFXFA_DocEnvironment::OnBeforeNotifySubmit() {
  if (m_pContext->GetDocType() != DOCTYPE_DYNAMIC_XFA &&
      m_pContext->GetDocType() != DOCTYPE_STATIC_XFA) {
    return true;
  }

  if (!m_pContext->GetXFADocView())
    return true;

  CXFA_FFWidgetHandler* pWidgetHandler =
      m_pContext->GetXFADocView()->GetWidgetHandler();
  if (!pWidgetHandler)
    return true;

  std::unique_ptr<CXFA_WidgetAccIterator> pWidgetAccIterator(
      m_pContext->GetXFADocView()->CreateWidgetAccIterator());
  if (pWidgetAccIterator) {
    CXFA_EventParam Param;
    Param.m_eType = XFA_EVENT_PreSubmit;
    while (CXFA_WidgetAcc* pWidgetAcc = pWidgetAccIterator->MoveToNext())
      pWidgetHandler->ProcessEvent(pWidgetAcc, &Param);
  }

  pWidgetAccIterator.reset(
      m_pContext->GetXFADocView()->CreateWidgetAccIterator());
  if (!pWidgetAccIterator)
    return true;

  CXFA_WidgetAcc* pWidgetAcc = pWidgetAccIterator->MoveToNext();
  pWidgetAcc = pWidgetAccIterator->MoveToNext();
  while (pWidgetAcc) {
    int fRet = pWidgetAcc->ProcessValidate(-1);
    if (fRet == XFA_EVENTERROR_Error) {
      CPDFSDK_FormFillEnvironment* pFormFillEnv = m_pContext->GetFormFillEnv();
      if (!pFormFillEnv)
        return false;

      CFX_WideString ws;
      ws.FromLocal(IDS_XFA_Validate_Input);
      CFX_ByteString bs = ws.UTF16LE_Encode();
      int len = bs.GetLength();
      pFormFillEnv->Alert((FPDF_WIDESTRING)bs.GetBuffer(len),
                          (FPDF_WIDESTRING)L"", 0, 1);
      bs.ReleaseBuffer(len);
      return false;
    }
    pWidgetAcc = pWidgetAccIterator->MoveToNext();
  }
  m_pContext->GetXFADocView()->UpdateDocView();

  return true;
}

DLLEXPORT unsigned long STDCALL FPDFBookmark_GetTitle(FPDF_BOOKMARK pDict,
        void* buffer,
        unsigned long buflen) {
    if (!pDict)
        return 0;
    CPDF_Bookmark bookmark((CPDF_Dictionary*)pDict);
    CFX_WideString title = bookmark.GetTitle();
    CFX_ByteString encodedTitle = title.UTF16LE_Encode();
    unsigned long len = encodedTitle.GetLength();
    if (buffer && buflen >= len) {
        FXSYS_memcpy(buffer, encodedTitle.c_str(), len);
    }
    return len;
}

DLLEXPORT FPDF_DEST STDCALL FPDF_GetNamedDest(FPDF_DOCUMENT document, int index, void* buffer, long* buflen)
{
    if (!buffer)
        *buflen = 0;
    if (!document || index < 0) return NULL;
    CPDF_Document* pDoc = (CPDF_Document*)document;

    CPDF_Dictionary* pRoot = pDoc->GetRoot();
    if (!pRoot) return NULL;

    CPDF_Object* pDestObj = NULL;
    CFX_ByteString bsName;
    CPDF_NameTree nameTree(pDoc, FX_BSTRC("Dests"));
    int count = nameTree.GetCount();
    if (index >= count) {
        CPDF_Dictionary* pDest = pRoot->GetDict(FX_BSTRC("Dests"));
        if (!pDest) return NULL;
        if (index >= count + pDest->GetCount()) return NULL;
        index -= count;
        FX_POSITION pos = pDest->GetStartPos();
        int i = 0;
        while (pos) {
            pDestObj = pDest->GetNextElement(pos, bsName);
            if (!pDestObj) continue;
            if (i == index) break;
            i++;
        }
    } else {
        pDestObj = nameTree.LookupValue(index, bsName);
    }
    if (!pDestObj) return NULL;
    if (pDestObj->GetType() == PDFOBJ_DICTIONARY) {
        pDestObj = ((CPDF_Dictionary*)pDestObj)->GetArray(FX_BSTRC("D"));
        if (!pDestObj) return NULL;
    }
    if (pDestObj->GetType() != PDFOBJ_ARRAY) return NULL;
    CFX_WideString wsName = PDF_DecodeText(bsName);
    CFX_ByteString utf16Name = wsName.UTF16LE_Encode();
    unsigned int len = utf16Name.GetLength();
    if (!buffer) {
        *buflen = len;
    } else if (*buflen >= len) {
        memcpy(buffer, utf16Name.c_str(), len);
        *buflen = len;
    } else {
        *buflen = -1;
    }
    return (FPDF_DEST)pDestObj;
}

void CFFL_TextField::OnSetFocus(CPWL_Wnd* pWnd) {
  ASSERT(m_pFormFillEnv);
  if (pWnd->GetClassName() == PWL_CLASSNAME_EDIT) {
    CPWL_Edit* pEdit = (CPWL_Edit*)pWnd;
    pEdit->SetCharSet(FXFONT_GB2312_CHARSET);
    pEdit->SetCodePage(936);

    pEdit->SetReadyToInput();
    CFX_WideString wsText = pEdit->GetText();
    int nCharacters = wsText.GetLength();
    CFX_ByteString bsUTFText = wsText.UTF16LE_Encode();
    unsigned short* pBuffer = (unsigned short*)bsUTFText.c_str();
    m_pFormFillEnv->OnSetFieldInputFocus(pBuffer, nCharacters, true);
  }
}

CFX_RetainPtr<IFX_SeekableReadStream> CPDFXFA_DocEnvironment::OpenLinkedFile(
    CXFA_FFDoc* hDoc,
    const CFX_WideString& wsLink) {
  CPDFSDK_FormFillEnvironment* pFormFillEnv = m_pContext->GetFormFillEnv();
  if (!pFormFillEnv)
    return nullptr;

  CFX_ByteString bs = wsLink.UTF16LE_Encode();
  int len = bs.GetLength();
  FPDF_FILEHANDLER* pFileHandler =
      pFormFillEnv->OpenFile(0, (FPDF_WIDESTRING)bs.GetBuffer(len), "rb");
  bs.ReleaseBuffer(len);
  if (!pFileHandler)
    return nullptr;

  return MakeSeekableStream(pFileHandler);
}

DLLEXPORT unsigned long STDCALL FPDF_GetMetaText(FPDF_DOCUMENT doc,
        FPDF_BYTESTRING tag,
        void* buffer,
        unsigned long buflen) {
    if (!doc || !tag)
        return 0;
    CPDF_Document* pDoc = (CPDF_Document*)doc;
    // Get info dictionary
    CPDF_Dictionary* pInfo = pDoc->GetInfo();
    if (!pInfo)
        return 0;
    CFX_WideString text = pInfo->GetUnicodeText(tag);
    // Use UTF-16LE encoding
    CFX_ByteString encodedText = text.UTF16LE_Encode();
    unsigned long len = encodedText.GetLength();
    if (buffer && buflen >= len) {
        FXSYS_memcpy(buffer, encodedText.c_str(), len);
    }
    return len;
}

DLLEXPORT int STDCALL FPDFLink_GetURL(FPDF_PAGELINK link_page,
                                      int link_index,
                                      unsigned short* buffer,
                                      int buflen) {
  if (!link_page)
    return 0;
  IPDF_LinkExtract* pageLink = (IPDF_LinkExtract*)link_page;
  CFX_WideString url = pageLink->GetURL(link_index);

  CFX_ByteString cbUTF16URL = url.UTF16LE_Encode();
  int len = cbUTF16URL.GetLength() / sizeof(unsigned short);
  if (buffer == NULL || buflen <= 0)
    return len;
  int size = len < buflen ? len : buflen;
  if (size > 0) {
    FXSYS_memcpy(buffer, cbUTF16URL.GetBuffer(size * sizeof(unsigned short)),
                 size * sizeof(unsigned short));
    cbUTF16URL.ReleaseBuffer(size * sizeof(unsigned short));
  }
  return size;
}

DLLEXPORT unsigned long STDCALL FPDF_GetMetaText(FPDF_DOCUMENT doc, FPDF_BYTESTRING tag,
												 void* buffer, unsigned long buflen)
{
	if (doc == NULL || tag == NULL) return 0;

	CPDF_Document* pDoc = (CPDF_Document*)doc;
	// Get info dictionary
	CPDF_Dictionary* pInfo = pDoc->GetInfo();
	if (pInfo == NULL) return 0;

	CFX_WideString text = pInfo->GetUnicodeText(tag);

	// Use UTF-16LE encoding
	CFX_ByteString bstr = text.UTF16LE_Encode();
	unsigned long len = bstr.GetLength();
	if (buffer != NULL || buflen >= len+2) {
		FXSYS_memcpy(buffer, (FX_LPCSTR)bstr, len);
		// use double zero as trailer
		((FX_BYTE*)buffer)[len] = ((FX_BYTE*)buffer)[len+1] = 0;
	}
	return len+2;
}

DLLEXPORT int STDCALL FPDFText_GetText(FPDF_TEXTPAGE text_page,
                                       int start,
                                       int count,
                                       unsigned short* result) {
  if (!text_page)
    return 0;

  CPDF_TextPage* textpage = CPDFTextPageFromFPDFTextPage(text_page);
  if (start >= textpage->CountChars())
    return 0;

  CFX_WideString str = textpage->GetPageText(start, count);
  if (str.GetLength() > count)
    str = str.Left(count);

  CFX_ByteString cbUTF16str = str.UTF16LE_Encode();
  FXSYS_memcpy(result, cbUTF16str.GetBuffer(cbUTF16str.GetLength()),
               cbUTF16str.GetLength());
  cbUTF16str.ReleaseBuffer(cbUTF16str.GetLength());

  return cbUTF16str.GetLength() / sizeof(unsigned short);
}

bool CPDFXFA_DocEnvironment::SubmitDataInternal(CXFA_FFDoc* hDoc,
                                                CXFA_Submit submit) {
  CPDFSDK_FormFillEnvironment* pFormFillEnv = m_pContext->GetFormFillEnv();
  if (!pFormFillEnv)
    return false;

  CFX_WideStringC csURLC;
  submit.GetSubmitTarget(csURLC);
  CFX_WideString csURL(csURLC);
  if (csURL.IsEmpty()) {
    CFX_WideString ws;
    ws.FromLocal("Submit cancelled.");
    CFX_ByteString bs = ws.UTF16LE_Encode();
    int len = bs.GetLength();
    pFormFillEnv->Alert((FPDF_WIDESTRING)bs.GetBuffer(len),
                        (FPDF_WIDESTRING)L"", 0, 4);
    bs.ReleaseBuffer(len);
    return false;
  }

  FPDF_FILEHANDLER* pFileHandler = nullptr;
  int fileFlag = -1;
  switch (submit.GetSubmitFormat()) {
    case XFA_ATTRIBUTEENUM_Xdp: {
      CFX_WideStringC csContentC;
      submit.GetSubmitXDPContent(csContentC);
      CFX_WideString csContent;
      csContent = csContentC;
      csContent.TrimLeft();
      csContent.TrimRight();
      CFX_WideString space;
      space.FromLocal(" ");
      csContent = space + csContent + space;
      FPDF_DWORD flag = 0;
      if (submit.IsSubmitEmbedPDF())
        flag |= FXFA_PDF;

      ToXFAContentFlags(csContent, flag);
      pFileHandler = pFormFillEnv->OpenFile(FXFA_SAVEAS_XDP, nullptr, "wb");
      fileFlag = FXFA_SAVEAS_XDP;
      ExportSubmitFile(pFileHandler, FXFA_SAVEAS_XDP, 0, flag);
      break;
    }
    case XFA_ATTRIBUTEENUM_Xml:
      pFileHandler = pFormFillEnv->OpenFile(FXFA_SAVEAS_XML, nullptr, "wb");
      fileFlag = FXFA_SAVEAS_XML;
      ExportSubmitFile(pFileHandler, FXFA_SAVEAS_XML, 0, FXFA_XFA_ALL);
      break;
    case XFA_ATTRIBUTEENUM_Pdf:
      break;
    case XFA_ATTRIBUTEENUM_Urlencoded:
      pFileHandler = pFormFillEnv->OpenFile(FXFA_SAVEAS_XML, nullptr, "wb");
      fileFlag = FXFA_SAVEAS_XML;
      ExportSubmitFile(pFileHandler, FXFA_SAVEAS_XML, 0, FXFA_XFA_ALL);
      break;
    default:
      return false;
  }
  if (!pFileHandler)
    return false;
  if (csURL.Left(7).CompareNoCase(L"mailto:") == 0) {
    CFX_WideString csToAddress;
    CFX_WideString csCCAddress;
    CFX_WideString csBCCAddress;
    CFX_WideString csSubject;
    CFX_WideString csMsg;
    if (!MailToInfo(csURL, csToAddress, csCCAddress, csBCCAddress, csSubject,
                    csMsg)) {
      return false;
    }
    CFX_ByteString bsTo = CFX_WideString(csToAddress).UTF16LE_Encode();
    CFX_ByteString bsCC = CFX_WideString(csCCAddress).UTF16LE_Encode();
    CFX_ByteString bsBcc = CFX_WideString(csBCCAddress).UTF16LE_Encode();
    CFX_ByteString bsSubject = CFX_WideString(csSubject).UTF16LE_Encode();
    CFX_ByteString bsMsg = CFX_WideString(csMsg).UTF16LE_Encode();
    FPDF_WIDESTRING pTo = (FPDF_WIDESTRING)bsTo.GetBuffer(bsTo.GetLength());
    FPDF_WIDESTRING pCC = (FPDF_WIDESTRING)bsCC.GetBuffer(bsCC.GetLength());
    FPDF_WIDESTRING pBcc = (FPDF_WIDESTRING)bsBcc.GetBuffer(bsBcc.GetLength());
    FPDF_WIDESTRING pSubject =
        (FPDF_WIDESTRING)bsSubject.GetBuffer(bsSubject.GetLength());
    FPDF_WIDESTRING pMsg = (FPDF_WIDESTRING)bsMsg.GetBuffer(bsMsg.GetLength());
    pFormFillEnv->EmailTo(pFileHandler, pTo, pSubject, pCC, pBcc, pMsg);
    bsTo.ReleaseBuffer();
    bsCC.ReleaseBuffer();
    bsBcc.ReleaseBuffer();
    bsSubject.ReleaseBuffer();
    bsMsg.ReleaseBuffer();
  } else {
    // HTTP or FTP
    CFX_WideString ws;
    CFX_ByteString bs = csURL.UTF16LE_Encode();
    int len = bs.GetLength();
    pFormFillEnv->UploadTo(pFileHandler, fileFlag,
                           (FPDF_WIDESTRING)bs.GetBuffer(len));
    bs.ReleaseBuffer(len);
  }
  return true;
}

void CPDFXFA_DocEnvironment::ExportData(CXFA_FFDoc* hDoc,
                                        const CFX_WideString& wsFilePath,
                                        bool bXDP) {
  if (hDoc != m_pContext->GetXFADoc())
    return;

  if (m_pContext->GetDocType() != DOCTYPE_DYNAMIC_XFA &&
      m_pContext->GetDocType() != DOCTYPE_STATIC_XFA) {
    return;
  }

  CPDFSDK_FormFillEnvironment* pFormFillEnv = m_pContext->GetFormFillEnv();
  if (!pFormFillEnv)
    return;

  int fileType = bXDP ? FXFA_SAVEAS_XDP : FXFA_SAVEAS_XML;
  CFX_ByteString bs = wsFilePath.UTF16LE_Encode();
  if (wsFilePath.IsEmpty()) {
    if (!pFormFillEnv->GetFormFillInfo() ||
        !pFormFillEnv->GetFormFillInfo()->m_pJsPlatform) {
      return;
    }

    CFX_WideString filepath = pFormFillEnv->JS_fieldBrowse();
    bs = filepath.UTF16LE_Encode();
  }
  int len = bs.GetLength();
  FPDF_FILEHANDLER* pFileHandler =
      pFormFillEnv->OpenFile(bXDP ? FXFA_SAVEAS_XDP : FXFA_SAVEAS_XML,
                             (FPDF_WIDESTRING)bs.GetBuffer(len), "wb");
  bs.ReleaseBuffer(len);
  if (!pFileHandler)
    return;

  CFX_RetainPtr<IFX_SeekableStream> fileWrite =
      MakeSeekableStream(pFileHandler);
  CFX_ByteString content;
  if (fileType == FXFA_SAVEAS_XML) {
    content = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\r\n";
    fileWrite->WriteBlock(content.c_str(), fileWrite->GetSize(),
                          content.GetLength());
    m_pContext->GetXFADocView()->GetDoc()->SavePackage(XFA_HASHCODE_Data,
                                                       fileWrite, nullptr);
  } else if (fileType == FXFA_SAVEAS_XDP) {
    if (!m_pContext->GetPDFDoc())
      return;

    CPDF_Dictionary* pRoot = m_pContext->GetPDFDoc()->GetRoot();
    if (!pRoot)
      return;

    CPDF_Dictionary* pAcroForm = pRoot->GetDictFor("AcroForm");
    if (!pAcroForm)
      return;

    CPDF_Array* pArray = ToArray(pAcroForm->GetObjectFor("XFA"));
    if (!pArray)
      return;

    int size = pArray->GetCount();
    for (int i = 1; i < size; i += 2) {
      CPDF_Object* pPDFObj = pArray->GetObjectAt(i);
      CPDF_Object* pPrePDFObj = pArray->GetObjectAt(i - 1);
      if (!pPrePDFObj->IsString())
        continue;
      if (!pPDFObj->IsReference())
        continue;

      CPDF_Stream* pStream = ToStream(pPDFObj->GetDirect());
      if (!pStream)
        continue;
      if (pPrePDFObj->GetString() == "form") {
        m_pContext->GetXFADocView()->GetDoc()->SavePackage(XFA_HASHCODE_Form,
                                                           fileWrite, nullptr);
        continue;
      }
      if (pPrePDFObj->GetString() == "datasets") {
        m_pContext->GetXFADocView()->GetDoc()->SavePackage(
            XFA_HASHCODE_Datasets, fileWrite, nullptr);
        continue;
      }
      if (i == size - 1) {
        CFX_WideString wPath = CFX_WideString::FromUTF16LE(
            reinterpret_cast<const unsigned short*>(bs.c_str()),
            bs.GetLength() / sizeof(unsigned short));
        CFX_ByteString bPath = wPath.UTF8Encode();
        const char* szFormat =
            "\n<pdf href=\"%s\" xmlns=\"http://ns.adobe.com/xdp/pdf/\"/>";
        content.Format(szFormat, bPath.c_str());
        fileWrite->WriteBlock(content.c_str(), fileWrite->GetSize(),
                              content.GetLength());
      }
      std::unique_ptr<CPDF_StreamAcc> pAcc(new CPDF_StreamAcc);
      pAcc->LoadAllData(pStream);
      fileWrite->WriteBlock(pAcc->GetData(), fileWrite->GetSize(),
                            pAcc->GetSize());
    }
  }
  fileWrite->Flush();
}