private void DragEnterOver(DragEventArgs e, DragType type)
{
var dropData = new FilesDropData(e.Data);
if (dropData.HasFiles)
{
var filesEventArgs = new FilesDragEventArgs(dropData, new Point(e.X, e.Y), e.AllowedEffect, e.KeyState);
filesEventArgs.Effect = e.Effect;
switch (type)
{
case DragType.Enter:
OnDragEnter(filesEventArgs);
break;
case DragType.Over:
OnDragOver(filesEventArgs);
break;
}
e.Effect = filesEventArgs.Effect;
}
else
{
e.Effect = DragDropEffects.None;
}
}
public FilesDragEventArgs(FilesDropData dropData, Point location, DragDropEffects allowedEffect, int keyState)
{
if (dropData == null)
{
throw new ArgumentNullException(nameof(dropData));
}
DropData = dropData;
Location = location;
AllowedEffect = allowedEffect;
KeyState = keyState;
}
void _control_DragDrop(object sender, DragEventArgs e)
{
var form = _control.FindForm();
form.Activate();
var dropData = new FilesDropData(e.Data);
if (dropData.HasFiles)
{
OnDragDrop(new FilesDragEventArgs(dropData, new Point(e.X, e.Y), e.AllowedEffect, e.KeyState));
}
}
public static List <DropMatch> FromDropData(string rootPath, string targetPath, FileBrowserManager fileBrowserManager, FilesDragEventArgs e)
{
if (rootPath == null)
{
throw new ArgumentNullException(nameof(rootPath));
}
if (targetPath == null)
{
throw new ArgumentNullException(nameof(targetPath));
}
if (e == null)
{
throw new ArgumentNullException(nameof(e));
}
FilesDropData dropData = e.DropData;
if (dropData == null)
{
throw new ArgumentNullException(nameof(dropData));
}
var matches = new List <DropMatch>();
for (int i = 0; i < dropData.FileNames.Length; i++)
{
string fileName = dropData.FileNames[i];
if (!IOPath.IsPathRooted(fileName))
{
// Normal drag/drop operations have the full path. Drag/drop operations
// without a full path generally are Ole objects that don't point to
// physical files, like drag/dropping from an Outlook email or a Windows
// compressed folder. To get the data,
matches.Add(new DropMatch(fileName, i, DropMatchKind.FileVirtual));
continue;
}
var fileInfo = new FileInfo(fileName);
if (fileInfo.Attributes.IsHidden())
{
continue;
}
bool contained = PathUtil.ContainsPath(rootPath, fileInfo.FullName) != PathContains.Not;
bool ctrlKeyPressed = (e.KeyState & 8) != 0;
bool shiftKeyPressed = (e.KeyState & 4) != 0;
if (PathUtil.ContainsPath(targetPath, fileInfo.DirectoryName) == PathContains.Equals)
{
continue;
}
if (fileInfo.Attributes.IsDirectory())
{
if (Directory.Exists(IOPath.Combine(targetPath, fileInfo.Name)))
{
continue;
}
if (PathUtil.ContainsPath(fileInfo.FullName, targetPath) != PathContains.Not)
{
continue;
}
var kind = contained ? DropMatchKind.DirectoryMove : DropMatchKind.DirectoryCopy;
if (ctrlKeyPressed && kind == DropMatchKind.DirectoryMove)
{
kind = DropMatchKind.DirectoryCopy;
}
else if (shiftKeyPressed && kind == DropMatchKind.DirectoryCopy)
{
kind = DropMatchKind.DirectoryMove;
}
matches.Add(new DropMatch(fileInfo.FullName, i, kind));
}
else if (fileBrowserManager != null && fileBrowserManager.Matches(fileInfo.FullName))
{
var kind = contained ? DropMatchKind.FileMove : DropMatchKind.FileCopy;
if (ctrlKeyPressed && kind == DropMatchKind.FileMove)
{
kind = DropMatchKind.FileCopy;
}
else if (shiftKeyPressed && kind == DropMatchKind.FileCopy)
{
kind = DropMatchKind.FileMove;
}
matches.Add(new DropMatch(fileInfo.FullName, i, kind));
}
}
return(matches);
}