public static ValueChangedSimple <ViewT> BindWrite <WidgetT, ViewT, DomainT>(this IReadWriteValueView <WidgetT, ViewT> view, IReadWriteValue <DomainT> domain, Func <ViewT, DomainT> convertToDomain)
{
ValueChangedSimple <ViewT> handler = async(newValue, userChange) => {
var value = RunConvertingExceptionToFailure(convertToDomain, newValue);
Logger.Debug(typeof(ValueViewExtensions), "BindWrite handler called with value after conversion={0}", value);
if (value.Success)
{
view.SetErrors(new HashSet <string>(), userChange);
view.IsValidating = true;
//await Task.Delay(5000); //testing only
try {
await domain.DoChange(value.Result, userChange);
} finally {
view.IsValidating = false;
}
}
else
{
view.SetErrors(new HashSet <string> {
value.ErrorMessage
}, userChange);
}
};
view.Changed += handler;
return(handler);
}
public async Task Init(string label, string message = null, string title = null)
{
if (title != null)
{
Title = title;
}
_view.Input.Label = label;
await _msg.DoChange(message, false, this, false);
_input.Reset(false, this);
}
public async Task Init(string message = null, string label = null, string title = null)
{
if (message != null)
{
await _msg.DoChange(message, false, this, false);
}
if (label != null)
{
_inputLabelChanger(label);
}
if (title != null)
{
Title = title;
}
_input.Reset(false, this);
}
public static void AddValidatorAndRevalidate <T>(this IReadWriteValue <T> self, Validate <T> validator)
{
self.Validate += validator;
self.DoChange(self.Value, false, self);
}
public static async Task <Unit> Revalidate <T>(this IReadWriteValue <T> self, bool isUserChange = false, object sender = null)
{
return(await self.DoChange(self.Value, isUserChange, sender));
}
/// <summary>shorthand for DoChange() that is: programmatic AND is allowed to store invalid values</summary>
public static Task <Unit> DoProgrammaticChange <T>(this IReadWriteValue <T> self, T newValue)
{
return(self.DoChange(newValue, false, null, false));
}
public async Task Init(string message, string title = null)
{
Title = title ?? I18n.Translate("Confirmation");
await _message.DoChange(message, false, this, false);
}