/// <summary>
/// Visual representation of a <see cref="TreeEntry"/>.
/// </summary>
public FilesystemItem(Crawler crawler, TreeEntry entry) : base()
{
this.crawler = crawler;
Header = entry;
if (entry.IsDirectory)
{
Items.Add(new FilesystemItem(null, new TreeEntry()
{
Name = "Loading..."
}));
}
}
/// <summary>
/// Download an FTP entry to a local path.
/// </summary>
/// <param name="entry">Remote file entry</param>
/// <param name="outputPath">Full output path and file name</param>
void ManualDownload(TreeEntry entry, string outputPath)
{
if (File.Exists(outputPath) && new FileInfo(outputPath).Length == entry.Size)
{
return; // Skip already downloaded files
}
downloader = new FileDownload(entry.RequestURI, outputPath, credentials)
{
reporter = DownloadProgress
};
downloading = entry.Name;
downloader.Download();
taskEngine.UpdateStatus(string.Format("Downloaded {0}.", downloading));
}
/// <summary>
/// Get the contents of a folder in this filesystem.
/// </summary>
public override List <TreeEntry> ListFolder(TreeEntry folder = null)
{
List <TreeEntry> result = new List <TreeEntry>();
if (folder != null)
{
string path = folder.URI;
if (!path.EndsWith('\\'))
{
path += '\\';
}
string[] folders;
try {
folders = Directory.GetDirectories(path);
} catch (UnauthorizedAccessException e) {
return(new List <TreeEntry>(new TreeEntry[1] {
new TreeEntry()
{
Name = e.Message
}
}));
}
for (int i = 0; i < folders.Length; ++i)
{
result.Add(new TreeEntry()
{
IsDirectory = true,
Name = Path.GetFileName(folders[i]),
ParentDirectory = path
});
}
}
else
{
string[] drives = Directory.GetLogicalDrives();
for (int i = 0; i < drives.Length; ++i)
{
result.Add(new TreeEntry()
{
IsDirectory = true,
Name = drives[i],
ParentDirectory = string.Empty
});
}
}
return(result);
}
/// <summary>
/// Callback when the user expands an entry, creates entries for all contained files of folders.
/// </summary>
protected override void OnExpanded(RoutedEventArgs e)
{
TreeEntry treeEntry = (TreeEntry)((TreeViewItem)e.OriginalSource).Header;
if (!treeEntry.IsDirectory)
{
return;
}
Items.Clear();
List <TreeEntry> result = crawler.ListFolder(treeEntry);
foreach (TreeEntry entry in result)
{
Items.Add(new FilesystemItem(crawler, entry));
}
base.OnExpanded(e);
}
/// <summary>
/// Download the selected file when double clicked.
/// </summary>
protected override void OnMouseDoubleClick(MouseButtonEventArgs e)
{
if (SelectedItem == null)
{
return;
}
TreeEntry entry = SelectedEntry, targetParent = localFilesystem.SelectedEntry;
if (targetParent == null)
{
MessageBox.Show("Please select the output folder on the local filesystem browser, then retry this download.");
return;
}
if (!entry.IsDirectory)
{
cancel = false;
taskEngine.Run(() => ManualDownload(entry, string.Format("{0}\\{1}", targetParent.URI, downloading = entry.Name)));
}
base.OnMouseDoubleClick(e);
}
/// <summary>
/// Download all files from the server last modified after the given date.
/// </summary>
public void DownloadAllAfter(DateTime after)
{
TreeEntry output = localFilesystem.SelectedEntry;
if (output == null)
{
MessageBox.Show("Please select the output folder on the local filesystem browser, then retry this download.");
return;
}
cancel = false;
ManualDownloadRecursive(null, string.Format(output.URI + '\\'), after);
if (!cancel)
{
taskEngine.UpdateProgressBar(1);
taskEngine.UpdateStatus("Latest files downloaded.");
}
else
{
taskEngine.UpdateStatus("Process cancelled.");
}
}
/// <summary> /// Get the contents of a folder in this filesystem. /// </summary> public abstract List <TreeEntry> ListFolder(TreeEntry folder = null);
