protected override void OnStartup(StartupEventArgs e)
{
base.OnStartup(e);
LibraryData = new LibraryData("BookShelf.dat");
LibraryData.watcher.Changed += Watcher_Changed;
UpdatePlugins();
}
public void Watcher_Changed(object sender, FileSystemEventArgs e)
{
var result = MessageBox.Show("File has been updated. Would you like to load update version?", "File update",
MessageBoxButton.YesNo, MessageBoxImage.Error);
if (result == MessageBoxResult.Yes)
{
LibraryData.watcher.Dispose();
LibraryData = LibraryData.Load(LibraryData.storagePath);
LibraryData.watcher.Changed += Watcher_Changed;
LibraryData.watcher.EnableRaisingEvents = true;
}
}
public static LibraryData Load(String path)
{
var formatter = new BinaryFormatter();
using (Stream s = File.OpenRead(path))
{
using (var ds = new DeflateStream(s, CompressionMode.Decompress))
{
var libraryData = new LibraryData(formatter.Deserialize(ds) as LibraryData);
libraryData.watcher = new FileSystemWatcher(Path.GetDirectoryName(path));
libraryData.watcher.Filter = Path.GetFileName(path);
libraryData.storagePath = path;
return(libraryData);
}
}
}
private void LoadFile()
{
OpenFileDialog openFileDialog = new OpenFileDialog();
if (openFileDialog.ShowDialog() == true)
{
try
{
(Application.Current as App).LibraryData.watcher?.Dispose();
(Application.Current as App).LibraryData = LibraryData.Load(openFileDialog.FileName);
(Application.Current as App).LibraryData.watcher.Changed += (Application.Current as App).Watcher_Changed;
(Application.Current as App).LibraryData.watcher.EnableRaisingEvents = true;
}
catch (NotSupportedException)
{
MessageBox.Show("Corrupted data", "Serialization error",
MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}
public LibraryData(LibraryData library) : this(library.Books, library.Authors, library.Publishers)
{
}