private IDataObject CreateDataObject(PackagePart packagePart)
{
var data = new DataObject();
data.SetData(PackageFileDataFormat, packagePart.Path);
if (packagePart is PackageFile packageFile)
{
long?fileSize = null;
if (packageFile.OriginalPath != null && File.Exists(packageFile.OriginalPath))
{
// Try to get the length, it may not really exist
try
{
fileSize = new FileInfo(packageFile.OriginalPath).Length;
}
catch (FileNotFoundException)
{ }
}
data.SetData(NativeDragDrop.FileGroupDescriptorW, NativeDragDrop.CreateFileGroupDescriptorW(packageFile.Name, packageFile.LastWriteTime, fileSize));
data.SetData(NativeDragDrop.FileContents, new LazyPackageFileStream(packageFile));
}
return(data);
}
private bool HandleDataObject(PackageFolder folder, IDataObject data, bool copy)
{
if (!CanHandleDataObject(folder, data))
{
return(false);
}
if (data.GetDataPresent(PackageFileDataFormat))
{
if (data.GetData(PackageFileDataFormat) is string packagePartPath)
{
var packagePart = RootFolder.GetPackageParts().FirstOrDefault(part => part.Path == packagePartPath);
if (packagePart != null)
{
folder = folder ?? RootFolder;
if (packagePart is PackageFile file)
{
folder.AddFile(file, copy);
}
else
{
if (packagePart is PackageFolder childFolder && !folder.IsDescendantOf(childFolder))
{
folder.AddFolder(childFolder, copy);
}
}
return(true);
}
}
}
if (data.GetDataPresent(NativeDragDrop.FileGroupDescriptorW))
{
folder = folder ?? RootFolder;
var viewModel = DataContext as PackageViewModel;
viewModel.AddDraggedAndDroppedFileDescriptors(folder, NativeDragDrop.GetFileGroupDescriptorW(data));
return(true);
}
if (data.GetDataPresent(DataFormats.FileDrop))
{
var value = data.GetData(DataFormats.FileDrop);
if (value is string[] filenames && filenames.Length > 0)
{
var viewModel = DataContext as PackageViewModel;
viewModel.AddDraggedAndDroppedFiles(folder, filenames);
return(true);
}
}
return(false);
}
private IDataObject CreateDataObject(PackagePart packagePart)
{
var data = new DataObject();
data.SetData(PackageFileDataFormat, packagePart.Path);
if (packagePart is PackageFile packageFile)
{
data.SetData(DataFormats.FileDrop, new[] { packageFile.Name });
data.SetData(NativeDragDrop.FileGroupDescriptorW, NativeDragDrop.CreateFileGroupDescriptorW(packageFile.Name, packageFile.LastWriteTime));
data.SetData(NativeDragDrop.FileContents, new LazyPackageFileStream(packageFile));
}
return(data);
}
private IDataObject CreateDataObject(PackagePart packagePart)
{
var data = new DataObject();
data.SetData(PackageFileDataFormat, packagePart.Path);
if (packagePart is PackageFile packageFile)
{
long?fileSize = null;
if (packageFile.OriginalPath != null)
{
fileSize = new FileInfo(packageFile.OriginalPath).Length;
}
data.SetData(NativeDragDrop.FileGroupDescriptorW, NativeDragDrop.CreateFileGroupDescriptorW(packageFile.Name, packageFile.LastWriteTime, fileSize));
data.SetData(NativeDragDrop.FileContents, new LazyPackageFileStream(packageFile));
}
return(data);
}