/// <summary>
/// Shows the window as a dialog.
/// </summary>
/// <typeparam name="TResult">
/// The type of the result produced by the dialog.
/// </typeparam>
/// <returns>.
/// A task that can be used to retrive the result of the dialog when it closes.
/// </returns>
public Task <TResult> ShowDialog <TResult>()
{
s_windows.Add(this);
EnsureInitialized();
IsVisible = true;
LayoutManager.Instance.ExecuteInitialLayoutPass(this);
using (BeginAutoSizing())
{
var affectedWindows = s_windows.Where(w => w.IsEnabled && w != this).ToList();
var activated = affectedWindows.Where(w => w.IsActive).FirstOrDefault();
SetIsEnabled(affectedWindows, false);
var modal = PlatformImpl.ShowDialog();
var result = new TaskCompletionSource <TResult>();
Observable.FromEventPattern <EventHandler, EventArgs>(
x => this.Closed += x,
x => this.Closed -= x)
.Take(1)
.Subscribe(_ =>
{
modal.Dispose();
SetIsEnabled(affectedWindows, true);
activated?.Activate();
result.SetResult((TResult)_dialogResult);
});
return(result.Task);
}
}
/// <summary>
/// Shows the window as a dialog.
/// </summary>
/// <typeparam name="TResult">
/// The type of the result produced by the dialog.
/// </typeparam>
/// <returns>.
/// A task that can be used to retrive the result of the dialog when it closes.
/// </returns>
public Task <TResult> ShowDialog <TResult>()
{
LayoutManager.ExecuteLayoutPass();
using (BeginAutoSizing())
{
var modal = PlatformImpl.ShowDialog();
var result = new TaskCompletionSource <TResult>();
Observable.FromEventPattern(this, nameof(Closed))
.Take(1)
.Subscribe(_ =>
{
modal.Dispose();
result.SetResult((TResult)_dialogResult);
});
return(result.Task);
}
}
/// <summary>
/// Shows the window as a dialog.
/// </summary>
/// <typeparam name="TResult">
/// The type of the result produced by the dialog.
/// </typeparam>
/// <param name="owner">The dialog's owner window.</param>
/// <returns>.
/// A task that can be used to retrieve the result of the dialog when it closes.
/// </returns>
public Task <TResult> ShowDialog <TResult>(IWindowImpl owner)
{
if (owner == null)
{
throw new ArgumentNullException(nameof(owner));
}
if (IsVisible)
{
throw new InvalidOperationException("The window is already being shown.");
}
RaiseEvent(new RoutedEventArgs(WindowOpenedEvent));
EnsureInitialized();
IsVisible = true;
LayoutManager.ExecuteInitialLayoutPass(this);
var result = new TaskCompletionSource <TResult>();
using (BeginAutoSizing())
{
PlatformImpl?.ShowDialog(owner);
Renderer?.Start();
Observable.FromEventPattern <EventHandler, EventArgs>(
x => this.Closed += x,
x => this.Closed -= x)
.Take(1)
.Subscribe(_ =>
{
owner.Activate();
result.SetResult((TResult)(_dialogResult ?? default(TResult)));
});
OnOpened(EventArgs.Empty);
}
SetWindowStartupLocation(owner);
return(result.Task);
}
/// <summary>
/// Shows the window as a dialog.
/// </summary>
/// <typeparam name="TResult">
/// The type of the result produced by the dialog.
/// </typeparam>
/// <returns>.
/// A task that can be used to retrieve the result of the dialog when it closes.
/// </returns>
public Task <TResult> ShowDialog <TResult>()
{
if (IsVisible)
{
throw new InvalidOperationException("The window is already being shown.");
}
AddWindow(this);
EnsureInitialized();
SetWindowStartupLocation();
IsVisible = true;
LayoutManager.ExecuteInitialLayoutPass(this);
using (BeginAutoSizing())
{
var affectedWindows = Application.Current.Windows.Where(w => w.IsEnabled && w != this).ToList();
var activated = affectedWindows.Where(w => w.IsActive).FirstOrDefault();
SetIsEnabled(affectedWindows, false);
var modal = PlatformImpl?.ShowDialog();
var result = new TaskCompletionSource <TResult>();
Renderer?.Start();
Observable.FromEventPattern <EventHandler, EventArgs>(
x => this.Closed += x,
x => this.Closed -= x)
.Take(1)
.Subscribe(_ =>
{
modal?.Dispose();
SetIsEnabled(affectedWindows, true);
activated?.Activate();
result.SetResult((TResult)(_dialogResult ?? default(TResult)));
});
return(result.Task);
}
}
