/// <summary>
/// Handles updating the value of <see cref="FieldEditorViewModel"/>.
/// This is asynchronous so cannot be done with a property setter.
/// </summary>
/// <param name="value">The new ViewModel value.</param>
/// <returns>A task that completes when the update is finished.</returns>
private async Task UpdateFieldEditorViewModel(IFieldEditorViewModel value)
{
IFieldEditorViewModel oldViewModel = this._fieldEditorViewModel;
if (oldViewModel != value)
{
this._fieldEditorViewModel = value;
if (oldViewModel != null)
{
await oldViewModel.SuspendAsync();
oldViewModel.CommitCommand.CanExecuteChanged -= FieldEditViewModelCanCommitChanged;
}
if (value != null)
{
value.CommitCommand.CanExecuteChanged += FieldEditViewModelCanCommitChanged;
await value.ActivateAsync();
}
OnPropertyChanged(nameof(FieldEditorViewModel));
this.commitFieldCommand.RaiseCanExecuteChanged();
}
}
public void Initialize()
{
IRandomNumberGenerator rng = new Salsa20(new byte[32]);
IResourceProvider resourceProvider = new MockResourceProvider();
this.parentEntry = new MockEntry();
this.parentEntry.Fields.Add(
new KdbxString(ExistingFieldKey, ExistingFieldValue, rng, ExistingFieldProtected)
);
MethodInfo testMethod = GetType().GetRuntimeMethod(
TestContext.TestName, new Type[0]
);
DetailsForAttribute specAttr = testMethod.GetCustomAttribute <DetailsForAttribute>();
if (specAttr == null)
{
return;
}
else
{
if (specAttr.IsNew)
{
this.viewModel = new FieldEditorViewModel(rng, resourceProvider);
}
else
{
this.originalString = new KdbxString(EditedFieldKey, EditedFieldValue, rng, EditedFieldProtected);
this.parentEntry.Fields.Add(this.originalString);
this.viewModel = new FieldEditorViewModel(this.originalString, resourceProvider);
}
}
}