private void ExecuteInternal(Action <CancellationToken, IProgress <string> > action,
ProgressDialogOptions options, bool isCancellable = true)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
if (options == null)
{
throw new ArgumentNullException("options");
}
using (var cancellationTokenSource = new CancellationTokenSource())
{
CancellationToken cancellationToken = cancellationTokenSource.Token;
var cancelCommand = isCancellable ? new CancelCommand(cancellationTokenSource) : null;
var viewModel = new ProgressDialogWindowViewModel(
options, cancellationToken, cancelCommand);
var window = new ProgressDialogWindow
{
DataContext = viewModel
};
var task = taskFactory
.StartNew(() => action(cancellationToken, viewModel.Progress),
cancellationToken);
task.ContinueWith(_ => viewModel.Close = true);
window.ShowDialog();
}
}
public bool TryExecute <T>(Func <CancellationToken, T> action, ProgressDialogOptions options, out T result)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
return(TryExecuteInternal((token, progress) => action(token), options, out result));
}
public void Execute(Action <IProgress <string> > action, ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
ExecuteInternal((token, progress) => action(progress), options);
}
public void Execute(Action <CancellationToken> action, ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
ExecuteInternal((token, progress) => action(token), options);
}
public async Task <T> ExecuteAsync <T>(Func <Task <T> > action, ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
return(await ExecuteAsyncInternal((token, progress) => action(), options));
}
public async Task ExecuteAsync(Func <CancellationToken, Task> action, ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
await ExecuteAsyncInternal((token, progress) => action(token), options);
}
public bool TryExecute <T>(Func <IProgress <string>, T> action, ProgressDialogOptions options, out T result)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
return(TryExecuteInternal((token, progress) => action(progress), options, out result,
isCancellable: false));
}
public void Execute(
Action <CancellationToken, IProgress <string> > action, ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
ExecuteInternal(action, options);
}
public void Execute(Action action, ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
ExecuteInternal((token, progress) => action(), options,
isCancellable: false);
}
public async Task <T> ExecuteAsync <T>(Func <CancellationToken, IProgress <string>, Task <T> > action,
ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
return(await ExecuteAsyncInternal(action, options));
}
public async Task ExecuteAsync(Func <IProgress <string>, Task> action, ProgressDialogOptions options)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
await ExecuteAsyncInternal((token, progress) => action(progress), options,
isCancellable : false);
}
public ProgressDialogWindowViewModel(
ProgressDialogOptions options,
CancellationToken cancellationToken,
CancelCommand cancelCommand)
{
if (options == null) throw new ArgumentNullException("options");
WindowTitle = options.WindowTitle;
Label = options.Label;
CancelCommand = cancelCommand; // can be null (not cancellable)
cancellationToken.Register(OnCancelled);
Progress = new Progress<string>(OnProgress);
}
private bool TryExecuteInternal <T>(
Func <CancellationToken, IProgress <string>, T> action,
ProgressDialogOptions options, out T result, bool isCancellable = true)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
if (options == null)
{
throw new ArgumentNullException("options");
}
using (var cancellationTokenSource = new CancellationTokenSource())
{
CancellationToken cancellationToken = cancellationTokenSource.Token;
var cancelCommand = isCancellable ? new CancelCommand(cancellationTokenSource) : null;
var viewModel = new ProgressDialogWindowViewModel(
options, cancellationToken, cancelCommand);
var window = new ProgressDialogWindow
{
DataContext = viewModel
};
var task = taskFactory
.StartNew(() => action(cancellationToken, viewModel.Progress),
cancellationToken);
task.ContinueWith(_ => viewModel.Close = true);
window.ShowDialog();
if (task.IsCanceled)
{
result = default(T);
return(false);
}
if (task.IsCompleted)
{
result = task.Result;
return(true);
}
result = default(T);
return(false);
}
}
public ProgressDialogWindowViewModel(
ProgressDialogOptions options,
CancellationToken cancellationToken,
CancelCommand cancelCommand)
{
if (options == null)
{
throw new ArgumentNullException("options");
}
WindowTitle = options.WindowTitle;
Label = options.Label;
CancelCommand = cancelCommand; // can be null (not cancellable)
cancellationToken.Register(OnCancelled);
Progress = new Progress <string>(OnProgress);
}
async private Task ExecuteAsyncInternal(
Func <CancellationToken, IProgress <string>, Task> action,
ProgressDialogOptions options, bool isCancellable = true)
{
if (action == null)
{
throw new ArgumentNullException("action");
}
if (options == null)
{
throw new ArgumentNullException("options");
}
using (var cancellationTokenSource = new CancellationTokenSource())
{
CancellationToken cancellationToken = cancellationTokenSource.Token;
var cancelCommand = isCancellable ? new CancelCommand(cancellationTokenSource) : null;
var viewModel = new ProgressDialogWindowViewModel(
options, cancellationToken, cancelCommand);
var window = new ProgressDialogWindow
{
DataContext = viewModel
};
Task task = action(cancellationToken, viewModel.Progress);
task.ContinueWith(_ => viewModel.Close = true);
window.ShowDialog();
await task;
}
}
