Imports System.IO
Imports Microsoft.Office.Interop

Public Class ClassDragDrop
    Public Shared files_dropped As String()
    Public Shared Function Drop_File(e As DragEventArgs)
        Try
            If LogErrorsOnly = False Then ClassLogger.Add(">> In Drop_File....", False)
            files_dropped = Nothing
            Dim oApp As New Outlook.Application
            Dim sql As String = "DELETE FROM TBPMO_FILES_USER WHERE UPPER(USER_WORK) = UPPER('" & Environment.UserName & "')"
            ClassDatabase.Execute_non_Query(sql)

            If e.Data.GetDataPresent(DataFormats.FileDrop) Then
                If LogErrorsOnly = False Then ClassLogger.Add(">> DataFormats.FileDrop", False)
                Dim MyFiles() As String
                Dim i As Integer
                ' Assign the files to an array. 
                MyFiles = e.Data.GetData(DataFormats.FileDrop)
                ' Loop through the array and add the files to the list. 
                For i = 0 To MyFiles.Length - 1

                    ReDim Preserve files_dropped(i)
                    files_dropped(i) = "@DROPFROMFSYSTEM@" & MyFiles(i)
                    ' ListBox1.Items.Add(MyFiles(i))
                Next
                Return files_dropped
            End If

            If e.Data.GetDataPresent("FileGroupDescriptor") AndAlso (e.Data.GetDataPresent("FileContents")) Then
                Console.WriteLine(">> FileGroupDescriptor/FileContents")
                If LogErrorsOnly = False Then ClassLogger.Add(">> FileGroupDescriptor/FileContents", False)
                '// the first step here is to get the stbFileName
                '// of the attachment and
                '// build a full-path name so we can store it
                '// in the temporary folder
                '//
                '// set up to obtain the aryFileGroupDescriptor
                '// and extract the file name                
                Dim stmInput As IO.Stream = CType(e.Data.GetData("FileGroupDescriptor"), IO.Stream)
                Dim aryFileGroupDescriptor(512) As Byte ' = new byte[512]
                stmInput.Read(aryFileGroupDescriptor, 0, 512)
                '// used to build the stbFileName from the aryFileGroupDescriptor block
                Dim stbFileName As System.Text.StringBuilder = New System.Text.StringBuilder("")
                '// this trick gets the stbFileName of the passed attached file
                Dim intCnt As Integer = 76
                Do While aryFileGroupDescriptor(intCnt) <> 0
                    stbFileName.Append(Convert.ToChar(aryFileGroupDescriptor(intCnt), System.Globalization.CultureInfo.CreateSpecificCulture("de-DE")))
                    intCnt += 1
                Loop
                stmInput.Close()

                Dim anhaenge = e.Data.GetDataPresent("FileContents")
                'Dim path As String = "C:\VBProjekte\Dateien"
                '// put the zip file into the temp directory
                Dim strOutFile As String = Path.GetTempPath() & stbFileName.ToString()
                '// create the full-path name
                '//
                '// Second step:  we have the file name. 
                '// Now we need to get the actual raw
                '// data for the attached file and copy it to disk so we work on it.
                '//
                '// get the actual raw file into memory
                Dim msInput As IO.MemoryStream = CType(e.Data.GetData("FileContents", True), IO.MemoryStream) 'This returns nothing for an Email
                If msInput Is Nothing = False Then
                    '// allocate enough bytes to hold the raw date
                    Dim aryFileBytes(CType(msInput.Length, Int32)) As Byte
                    '// set starting position at first byte and read in the raw data
                    msInput.Position = 0
                    msInput.Read(aryFileBytes, 0, CType(msInput.Length, Int32))
                    '// create a file and save the raw zip file to it
                    Dim fsOutput As IO.FileStream = New IO.FileStream(strOutFile, IO.FileMode.Create) ';
                    fsOutput.Write(aryFileBytes, 0, aryFileBytes.Length)
                    fsOutput.Close() ' // close the file

                    Dim finTemp As IO.FileInfo = New IO.FileInfo(strOutFile)
                    '// always good to make sure we actually created the file
                    If (finTemp.Exists = True) Then
                        'MsgBox("Attachment File from Outlook created:" & vbNewLine & strOutFile)
                        '   lblFile.Text += "Attachment File from Outlook created" + Environment.NewLine
                        Console.WriteLine(">> Drop of a mailattachment - File")
                        ReDim Preserve files_dropped(0)
                        files_dropped(0) = "@OUTLOOK_ATTMNT@" & strOutFile
                        TEMP_FILES.Add(strOutFile)
                        If LogErrorsOnly = False Then ClassLogger.Add(">> Drop an Attachment - File: " & strOutFile, False)
                        Return files_dropped
                    Else
                        ClassLogger.Add(">> Attachment File from Outlook could not be created", False)
                        'lblFile.Text += "Attachment File from Outlook could not be created" + Environment.NewLine
                    End If
                End If
            End If

            If e.Data.GetDataPresent("FileGroupDescriptor") Then
                Console.WriteLine(">> FileGroupDescriptor")
                If LogErrorsOnly = False Then ClassLogger.Add(">> Drop of OutlookMessage", False)
                'supports a drop of a Outlook message 
                Dim myobj As Object

                For i As Integer = 1 To oApp.ActiveExplorer.Selection.Count
                    myobj = oApp.ActiveExplorer.Selection.Item(i)

                    'hardcode a destination path for testing
                    Dim strFile As String = IO.Path.Combine(Path.GetTempPath, (myobj.Subject + ".msg").Replace(":", ""))
                    myobj.SaveAs(strFile)
                    TEMP_FILES.Add(strFile)
                    ReDim Preserve files_dropped(i)
                    files_dropped(i) = "@OUTLOOKMESSAGE@" & strFile
                Next
                Return files_dropped
            End If
        Catch ex As Exception
            MsgBox("Error in Drop_File: " & ex.Message, MsgBoxStyle.Critical)
        End Try


        'Else
        '    Dim files() As String = e.Data.GetData(DataFormats.FileDrop)
        '    Dim filestype() As String

        '    filestype = e.Data.GetData(DataFormats.CommaSeparatedValue)
        '    Dim sReader As New StreamReader(filestype(0))
        '    'get the filename from the file without the path
        '    Dim file_name As String = Path.GetFileName(filestype(0))

        '    'check the extension of the file
        '    If Path.GetExtension(filestype(0)).ToLower() = ".xml" Then
        '        'Read the xml file
        '        For Each path In files
        '            'ReadXMLFile(path)
        '        Next
        '    Else
        '        'warning about the file type
        '        MessageBox.Show("Only XML files are supported!", "Warning!", _
        'MessageBoxButtons.OK, _
        '    MessageBoxIcon.Warning)
        '    End If
        'End If

    End Function
    Public Shared Sub Drag_enter(e As DragEventArgs)
        Try
            My.Settings.WD_INDEXDOKART_SAVE = ""
            If e.Data.GetDataPresent(DataFormats.FileDrop) Then
                e.Effect = DragDropEffects.All
                If LogErrorsOnly = True Then ClassLogger.Add("DragEnter ... SimpleFileDrop", False)
                frmForm_Constructor.tslblStatusMain_show(True, "DragEnter ... SimpleFileDrop")
            ElseIf (e.Data.GetDataPresent("FileGroupDescriptor")) AndAlso (e.Data.GetDataPresent("FileContents")) Then
                e.Effect = DragDropEffects.Copy
                frmForm_Constructor.tslblStatusMain_show(True, "DragEnter ... Attachment from Outlook")
                If LogErrorsOnly = True Then frmForm_Constructor.tsstatus_Detail_show(True, "DragEnter ... Attachment from Outlook")
            ElseIf e.Data.GetDataPresent("FileGroupDescriptor") Then
                'handle a message dragged from Outlook
                e.Effect = DragDropEffects.Copy
                frmForm_Constructor.tslblStatusMain_show(True, "DragEnter ... OutlookMessage")
                If LogErrorsOnly = True Then ClassLogger.Add("DragEnter ... OutlookMessage", False)
            Else
                'otherwise, do not handle
                e.Effect = DragDropEffects.None
                frmForm_Constructor.tslblStatusMain_show(True, "DragEnter ... Other FileFormat")
                If LogErrorsOnly = True Then ClassLogger.Add("DragEnter ... Other FileFormat", False)
            End If
        Catch ex As Exception

        End Try

    End Sub
End Class