public MainWindow(IInteractionService interactions)
{
InitializeComponent();
ViewModel = Application.Current // get the bootstrapper from App resources
.FindResource("MainWindowViewModel") as IMainWindowViewModel;
this.interactions = interactions ?? Locator.Current.GetService <IInteractionService>();
IDisposable activation = null;
activation = this.WhenActivated(disposables =>
{
activation
.DisposeWith(disposables);
this // ViewModel -> DataContext
.WhenAnyValue(v => v.ViewModel)
.BindTo(this, v => v.DataContext)
.DisposeWith(disposables);
this // KeyDown -> ViewModel.KeyDown
.WhenAnyValue(v => v.ViewModel)
.Select(_ => this.Events().KeyDown)
.BindTo(ViewModel, vm => vm.KeyDown)
.DisposeWith(disposables);
this // Handle GetNodeColor interaction
.interactions
.GetNodeColor
.RegisterHandler(async interaction =>
{
var dialog = new ColorDialog
{
Color = interaction.Input // dialog edits what the node sent here
};
await this.ShowMetroDialogAsync(dialog);
var isAccepted = await dialog.WaitUntilClosedAsync();
await this.HideMetroDialogAsync(dialog);
if (isAccepted)
{
interaction.SetOutput(dialog.Color); // return new color
}
else
{
interaction.SetOutput(interaction.Input); // return old color
}
})
.DisposeWith(disposables);
this
.interactions
.GetNodeOperation
.RegisterHandler(async interaction =>
{
var dialog = new OperationDialog
{
Operation = interaction.Input // dialog edits what the node sent here
};
await this.ShowMetroDialogAsync(dialog);
var isAccepted = await dialog.WaitUntilClosedAsync();
await this.HideMetroDialogAsync(dialog);
if (isAccepted)
{
interaction.SetOutput(dialog.Operation); // return new operation
}
else
{
interaction.SetOutput(interaction.Input); // return old operation
}
})
.DisposeWith(disposables);
});
}