// Decompiled with JetBrains decompiler
// Type: Rei.Com.DataObjectHelper
// Assembly: Rei.Com, Version=1.13.2.9255, Culture=neutral, PublicKeyToken=null
// MVID: 608BC623-FF3D-4118-BA82-AC691A688790
// Assembly location: F:\Eigene Dateien\Dropbox\portable Collection\Progs\CarotDAV\Rei.Com.dll

using Microsoft.VisualBasic.CompilerServices;
using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Runtime.InteropServices.ComTypes;
using System.Text;
using System.Windows.Forms;

namespace Rei.Com
{
  public class DataObjectHelper
  {
    public static VirtualFileInfo[] GetVirtualFileInfo(System.Windows.Forms.IDataObject dobj)
    {
      IntPtr zero = IntPtr.Zero;
      List<VirtualFileInfo> virtualFileInfoList = new List<VirtualFileInfo>();
      using (MemoryStream data = (MemoryStream) dobj.GetData("FileGroupDescriptorW"))
      {
        if (data == null)
          return new VirtualFileInfo[0];
        byte[] numArray1 = new byte[checked ((int) (data.Length - 1L) + 1)];
        data.Read(numArray1, 0, numArray1.Length);
        int int32 = BitConverter.ToInt32(numArray1, 0);
        IntPtr num1 = Marshal.AllocHGlobal(numArray1.Length);
        try
        {
          Marshal.Copy(numArray1, 0, num1, numArray1.Length);
          IntPtr ptr = new IntPtr(checked (num1.ToInt64() + (long) Marshal.SizeOf((object) int32)));
          int num2 = 0;
          int num3 = checked (int32 - 1);
          int num4 = num2;
          while (num4 <= num3)
          {
            object structure = Marshal.PtrToStructure(ptr, typeof (FileDescriptor));
            FileDescriptor fileDescriptor1 = new FileDescriptor();
            FileDescriptor fileDescriptor2 = structure != null ? (FileDescriptor) structure : fileDescriptor1;
            VirtualFileInfo virtualFileInfo = new VirtualFileInfo();
            virtualFileInfo.FileName = fileDescriptor2.cFileName;
            virtualFileInfo.Flags = fileDescriptor2.dwFlags;
            if ((fileDescriptor2.dwFlags & FDFlags.FD_CLSID) == (FDFlags) 0)
              ;
            if ((fileDescriptor2.dwFlags & FDFlags.FD_SIZEPOINT) == (FDFlags) 0)
              ;
            if ((fileDescriptor2.dwFlags & FDFlags.FD_ATTRIBUTES) != (FDFlags) 0)
              virtualFileInfo.FileAttributes = fileDescriptor2.dwFileAttributes;
            if ((fileDescriptor2.dwFlags & FDFlags.FD_CREATETIME) != (FDFlags) 0)
              virtualFileInfo.CreationTime = DateTime.FromFileTime(fileDescriptor2.ftCreationTime);
            if ((fileDescriptor2.dwFlags & FDFlags.FD_ACCESSTIME) != (FDFlags) 0)
              virtualFileInfo.LastAccessTime = DateTime.FromFileTime(fileDescriptor2.ftLastAccessTime);
            if ((fileDescriptor2.dwFlags & FDFlags.FD_WRITESTIME) != (FDFlags) 0)
              virtualFileInfo.LastWriteTime = DateTime.FromFileTime(fileDescriptor2.ftLastWriteTime);
            if ((fileDescriptor2.dwFlags & FDFlags.FD_FILESIZE) != (FDFlags) 0)
              virtualFileInfo.FileSize = fileDescriptor2.FileSize;
            FORMATETC format = new FORMATETC();
            format.cfFormat = BitConverter.ToInt16(BitConverter.GetBytes(DataFormats.GetFormat("FileContents").Id), 0);
            format.dwAspect = DVASPECT.DVASPECT_CONTENT;
            format.lindex = num4;
            format.ptd = IntPtr.Zero;
            format.tymed = TYMED.TYMED_HGLOBAL | TYMED.TYMED_ISTREAM;
            STGMEDIUM medium = new STGMEDIUM();
            try
            {
              ((System.Runtime.InteropServices.ComTypes.IDataObject) dobj).GetData(ref format, out medium);
            }
            catch (Exception ex)
            {
              ProjectData.SetProjectError(ex);
              virtualFileInfo.FileAttributes = virtualFileInfo.FileAttributes | FileAttributes.System;
              ProjectData.ClearProjectError();
            }
            if (medium.tymed == TYMED.TYMED_HGLOBAL)
            {
              IntPtr unionmember = medium.unionmember;
              if (unionmember == IntPtr.Zero)
                return (VirtualFileInfo[]) null;
              int length = DataObject.GlobalSize(unionmember);
              byte[] numArray2 = new byte[checked (length - 1 + 1)];
              Marshal.Copy(unionmember, numArray2, 0, length);
              virtualFileInfo.ManageStream = (Stream) new MemoryStream(numArray2);
            }
            else
            {
              if (medium.tymed == TYMED.TYMED_ISTORAGE)
                throw new Exception("doesn't support IStorage");
              if (medium.tymed == TYMED.TYMED_ISTREAM)
              {
                System.Runtime.InteropServices.ComTypes.IStream objectForIunknown = (System.Runtime.InteropServices.ComTypes.IStream) Marshal.GetObjectForIUnknown(medium.unionmember);
                Marshal.Release(medium.unionmember);
                virtualFileInfo.ManageStream = (Stream) new ComStreamAdapterStream(objectForIunknown);
              }
            }
            if (virtualFileInfo.ManageStream == null)
              virtualFileInfo.ManageStream = (Stream) new MemoryStream();
            virtualFileInfoList.Add(virtualFileInfo);
            ptr = new IntPtr(checked (ptr.ToInt64() + (long) Marshal.SizeOf((object) fileDescriptor2)));
            checked { ++num4; }
          }
        }
        finally
        {
          Marshal.FreeHGlobal(num1);
        }
      }
      return virtualFileInfoList.ToArray();
    }

    public static DragDropEffects GetPreferredDragEffect(System.Windows.Forms.IDataObject dataobject)
    {
      DragDropEffects dragDropEffects = DragDropEffects.None;
      if (dataobject.GetDataPresent(ShellClipboardFormats.PreferredDropEffect))
      {
        MemoryStream data = dataobject.GetData(ShellClipboardFormats.PreferredDropEffect) as MemoryStream;
        try
        {
          if (data != null)
          {
            byte[] buffer = new byte[4];
            data.Read(buffer, 0, 4);
            data.Dispose();
            dragDropEffects = (DragDropEffects) BitConverter.ToInt32(buffer, 0);
          }
        }
        finally
        {
          if (data != null)
            data.Dispose();
        }
      }
      return dragDropEffects;
    }

    public static Uri GetUniformResourceLocator(System.Windows.Forms.IDataObject dataobject)
    {
      Uri result = (Uri) null;
      string uriString;
      if (dataobject.GetDataPresent(ShellClipboardFormats.UniformResourceLocatorW))
      {
        MemoryStream data = dataobject.GetData(ShellClipboardFormats.UniformResourceLocatorW) as MemoryStream;
        if (data != null)
        {
          using (StreamReader streamReader = new StreamReader((Stream) data, Encoding.Unicode))
            uriString = streamReader.ReadToEnd();
          int length = uriString.IndexOf(char.MinValue);
          if (length >= 0)
            uriString = uriString.Substring(0, length);
          if (Uri.TryCreate(uriString, UriKind.Absolute, out result))
            return result;
        }
      }
      if (dataobject.GetDataPresent(ShellClipboardFormats.UniformResourceLocator))
      {
        MemoryStream data = dataobject.GetData(ShellClipboardFormats.UniformResourceLocator) as MemoryStream;
        if (data != null)
        {
          using (StreamReader streamReader = new StreamReader((Stream) data, Encoding.Default))
            uriString = streamReader.ReadToEnd();
          int length = uriString.IndexOf(char.MinValue);
          if (length >= 0)
            uriString = uriString.Substring(0, length);
          if (Uri.TryCreate(uriString, UriKind.Absolute, out result))
            return result;
        }
      }
      return (Uri) null;
    }

    public static void SetPerformedDragEffect(System.Windows.Forms.IDataObject dataobject, DragDropEffects effect)
    {
      System.Runtime.InteropServices.ComTypes.IDataObject dataObject = dataobject as System.Runtime.InteropServices.ComTypes.IDataObject;
      if (dataObject == null)
        return;
      FORMATETC formatIn;
      formatIn.cfFormat = DataObject.MakecfFormat(ShellClipboardFormats.PerformedDropEffect);
      formatIn.dwAspect = DVASPECT.DVASPECT_CONTENT;
      formatIn.lindex = -1;
      formatIn.ptd = new IntPtr();
      formatIn.tymed = TYMED.TYMED_HGLOBAL;
      STGMEDIUM medium;
      medium.tymed = TYMED.TYMED_HGLOBAL;
      medium.pUnkForRelease = (object) null;
      medium.unionmember = Marshal.AllocHGlobal(4);
      Marshal.WriteInt32(medium.unionmember, 0, (int) effect);
      dataObject.SetData(ref formatIn, ref medium, true);
    }

    public static void SetLogicalPerformedDragEffect(System.Windows.Forms.IDataObject dataobject, DragDropEffects effect)
    {
      System.Runtime.InteropServices.ComTypes.IDataObject dataObject = dataobject as System.Runtime.InteropServices.ComTypes.IDataObject;
      if (dataObject == null)
        return;
      FORMATETC formatIn;
      formatIn.cfFormat = DataObject.MakecfFormat(ShellClipboardFormats.LogicalPerformedDropEffect);
      formatIn.dwAspect = DVASPECT.DVASPECT_CONTENT;
      formatIn.lindex = -1;
      formatIn.ptd = new IntPtr();
      formatIn.tymed = TYMED.TYMED_HGLOBAL;
      STGMEDIUM medium;
      medium.tymed = TYMED.TYMED_HGLOBAL;
      medium.pUnkForRelease = (object) null;
      medium.unionmember = Marshal.AllocHGlobal(4);
      Marshal.WriteInt32(medium.unionmember, 0, (int) effect);
      dataObject.SetData(ref formatIn, ref medium, true);
    }

    public static void SetPasteSucceeded(System.Windows.Forms.IDataObject dataobject, DragDropEffects effect)
    {
      System.Runtime.InteropServices.ComTypes.IDataObject dataObject = dataobject as System.Runtime.InteropServices.ComTypes.IDataObject;
      if (dataObject == null)
        return;
      FORMATETC formatIn;
      formatIn.cfFormat = DataObject.MakecfFormat(ShellClipboardFormats.PasteSucceeded);
      formatIn.dwAspect = DVASPECT.DVASPECT_CONTENT;
      formatIn.lindex = -1;
      formatIn.ptd = new IntPtr();
      formatIn.tymed = TYMED.TYMED_HGLOBAL;
      STGMEDIUM medium;
      medium.tymed = TYMED.TYMED_HGLOBAL;
      medium.pUnkForRelease = (object) null;
      medium.unionmember = Marshal.AllocHGlobal(4);
      Marshal.WriteInt32(medium.unionmember, 0, (int) effect);
      dataObject.SetData(ref formatIn, ref medium, true);
    }

    public static bool CanAsync(System.Windows.Forms.IDataObject dobj)
    {
      object objectValue1 = RuntimeHelpers.GetObjectValue(typeof (System.Windows.Forms.DataObject).GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue((object) dobj));
      IAsyncOperation objectValue2 = RuntimeHelpers.GetObjectValue(objectValue1.GetType().GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue(RuntimeHelpers.GetObjectValue(objectValue1))) as IAsyncOperation;
      if (objectValue2 == null)
        return false;
      bool pfIsOpAsync;
      objectValue2.GetAsyncMode(out pfIsOpAsync);
      return pfIsOpAsync;
    }

    public static void SetAsyncMode(System.Windows.Forms.IDataObject dobj, bool r)
    {
      object objectValue1 = RuntimeHelpers.GetObjectValue(typeof (System.Windows.Forms.DataObject).GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue((object) dobj));
      IAsyncOperation objectValue2 = RuntimeHelpers.GetObjectValue(objectValue1.GetType().GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue(RuntimeHelpers.GetObjectValue(objectValue1))) as IAsyncOperation;
      if (objectValue2 == null)
        return;
      objectValue2.SetAsyncMode(r);
    }

    public static bool StartAsyncOperation(System.Windows.Forms.IDataObject dobj)
    {
      object objectValue1 = RuntimeHelpers.GetObjectValue(typeof (System.Windows.Forms.DataObject).GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue((object) dobj));
      IAsyncOperation objectValue2 = RuntimeHelpers.GetObjectValue(objectValue1.GetType().GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue(RuntimeHelpers.GetObjectValue(objectValue1))) as IAsyncOperation;
      if (objectValue2 != null)
      {
        bool pfIsOpAsync = false;
        objectValue2.GetAsyncMode(out pfIsOpAsync);
        if (pfIsOpAsync)
        {
          objectValue2.StartOperation(IntPtr.Zero);
          return true;
        }
      }
      return false;
    }

    public static void EndAsyncOperation(System.Windows.Forms.IDataObject dobj, DragDropEffects dwEffect)
    {
      object objectValue1 = RuntimeHelpers.GetObjectValue(typeof (System.Windows.Forms.DataObject).GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue((object) dobj));
      IAsyncOperation objectValue2 = RuntimeHelpers.GetObjectValue(objectValue1.GetType().GetField("innerData", BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic).GetValue(RuntimeHelpers.GetObjectValue(objectValue1))) as IAsyncOperation;
      if (objectValue2 == null)
        return;
      bool pfIsOpAsync = false;
      objectValue2.GetAsyncMode(out pfIsOpAsync);
      if (!pfIsOpAsync)
        return;
      objectValue2.EndOperation(IntPtr.Zero, IntPtr.Zero, (int) dwEffect);
    }
  }
}