public static IObservable <ShellChangedEventArgs> CreatedAsObservable(this ShellWatcher watcher)
{
return(Observable.FromEventPattern <ShellChangedEventArgs>(
h => watcher.ItemCreated += h,
h => watcher.ItemCreated -= h)
.Select(x => x.EventArgs));
}
public async void Loaded(dynamic view)
{
this.View = view as IMainView;
this.View.WriteLine(String.Empty);
this.View.WriteLine($"RootFolder: {this.RootFolder.Value.Path}");
this.shellWatcher = await ShellWatcher.CreateAsync(this.RootFolder.Value, true);
this.shellWatcher.CreatedAsObservable()
.Subscribe(e =>
{
this.View.WriteLine($"Create: {e.ShellObject}");
})
.AddTo(this.CompositeDisposable);
this.shellWatcher.DeletedAsObservable()
.Subscribe(e =>
{
this.View.WriteLine($"Delete: {e.ShellObject}");
})
.AddTo(this.CompositeDisposable);
this.shellWatcher.RenamtedAsObservable()
.Subscribe(e =>
{
this.View.WriteLine($"Rename: {e.ShellObject} -> {e.NewShellObject}");
})
.AddTo(this.CompositeDisposable);
this.shellWatcher.Start();
}
/// <summary>
/// Unregister <see cref="ShellWatcher" /> from the message listener.
/// </summary>
/// <param name="shellWatcher">Unregister <see cref="ShellWatcher" />.</param>
/// <returns></returns>
public static Task UnregisterAsync(ShellWatcher shellWatcher)
{
Contract.Requires <ArgumentNullException>(shellWatcher != null);
ShellWatcher temp;
Listeners.TryRemove(shellWatcher.Message, out temp);
return(Task.FromResult(0));
}
/// <summary>
/// Register <see cref="ShellWatcher" /> in the message listener.
/// </summary>
/// <param name="shellObject">Register <see cref="ShellObject" />.</param>
/// <param name="recursive">Specify whether to monitor recursively.</param>
/// <returns>Created <see cref="ShellWatcher" />.</returns>
public static async Task <ShellWatcher> RegisterAsync(ShellObject shellObject, bool recursive)
{
Contract.Requires <ArgumentNullException>(shellObject != null);
var message = await FindWindowMessageAsync();
if (message < WM_APP)
{
throw new ShellException(ErrorMessages.ShellWatcherManagerFilterUnableToRegister);
}
// Create ShellWatcher.
var result = new ShellWatcher(shellObject, Window, message, recursive);
// Register ShellWatcher.
Listeners.TryAdd(message, result);
return(result);
}
