private static void OnViewModelClosed(object sender, EventArgs e)
{
var viewModel = (IViewModel)sender;
AuditingManager.OnViewModelClosed(viewModel);
UnsubscribeEvents(viewModel);
}
/// <summary>
/// Registers the view model to the <see cref="AuditingManager"/>.
/// <para />
/// This helper will automatically unsubscribe from all events when the view model is closed.
/// </summary>
/// <param name="viewModel">The view model to register.</param>
/// <remarks>
/// This helper will call the <see cref="AuditingManager.OnViewModelCreating"/> and <see cref="AuditingManager.OnViewModelCreated"/>
/// automatically.
/// </remarks>
/// <exception cref="ArgumentNullException">The <paramref name="viewModel" /> is <c>null</c>.</exception>
public static void RegisterViewModel(IViewModel viewModel)
{
Argument.IsNotNull("viewModel", viewModel);
AuditingManager.OnViewModelCreating(viewModel.GetType());
SubscribeEvents(viewModel);
AuditingManager.OnViewModelCreated(viewModel.GetType());
}
private static Task OnViewModelClosingAsync(object sender, EventArgs e)
{
if (!AuditingManager.IsAuditingEnabled)
{
return(TaskHelper.Completed);
}
AuditingManager.OnViewModelClosing((IViewModel)sender);
return(TaskHelper.Completed);
}
private static Task OnViewModelCommandExecutedAsync(object sender, CommandExecutedEventArgs e)
{
if (!AuditingManager.IsAuditingEnabled)
{
return(TaskHelper.Completed);
}
AuditingManager.OnCommandExecuted((IViewModel)sender, e.CommandPropertyName, e.Command, e.CommandParameter);
return(TaskHelper.Completed);
}
private static void OnViewModelPropertyChanging(object sender, PropertyChangingEventArgs e)
{
var viewModel = (IViewModel)sender;
object propertyValue = null;
if (!string.IsNullOrEmpty(e.PropertyName))
{
PropertyHelper.TryGetPropertyValue(viewModel, e.PropertyName, out propertyValue);
}
AuditingManager.OnPropertyChanging(viewModel, e.PropertyName, propertyValue);
}
private static Task OnViewModelClosedAsync(object sender, EventArgs e)
{
if (!AuditingManager.IsAuditingEnabled)
{
return(TaskHelper.Completed);
}
var viewModel = (IViewModel)sender;
AuditingManager.OnViewModelClosed(viewModel);
UnsubscribeEvents(viewModel);
return(TaskHelper.Completed);
}
/// <summary>
/// Registers the view model to the <see cref="AuditingManager"/>.
/// <para />
/// This helper will automatically unsubscribe from all events when the view model is closed.
/// </summary>
/// <param name="viewModel">The view model to register.</param>
/// <remarks>
/// This helper will call the <see cref="AuditingManager.OnViewModelCreating"/> and <see cref="AuditingManager.OnViewModelCreated"/>
/// automatically.
/// </remarks>
/// <exception cref="ArgumentNullException">The <paramref name="viewModel" /> is <c>null</c>.</exception>
public static void RegisterViewModel(IViewModel viewModel)
{
Argument.IsNotNull("viewModel", viewModel);
var isAuditingEnabled = AuditingManager.IsAuditingEnabled;
if (isAuditingEnabled)
{
AuditingManager.OnViewModelCreating(viewModel.GetType());
}
SubscribeEvents(viewModel);
if (isAuditingEnabled)
{
AuditingManager.OnViewModelCreated(viewModel);
}
}
private static void OnViewModelPropertyChanged(object sender, PropertyChangedEventArgs e)
{
if (!AuditingManager.IsAuditingEnabled)
{
return;
}
var viewModel = (IViewModel)sender;
object propertyValue = null;
if (!string.IsNullOrEmpty(e.PropertyName) && !KnownIgnoredPropertyNames.Contains(e.PropertyName))
{
PropertyHelper.TryGetPropertyValue(viewModel, e.PropertyName, out propertyValue);
}
AuditingManager.OnPropertyChanged(viewModel, e.PropertyName, propertyValue);
}
private static void OnViewModelClosing(object sender, EventArgs e)
{
AuditingManager.OnViewModelClosing((IViewModel)sender);
}
private static void OnViewModelCommandExecuted(object sender, CommandExecutedEventArgs e)
{
AuditingManager.OnCommandExecuted((IViewModel)sender, e.CommandPropertyName, e.Command, e.CommandParameter);
}