/// <summary>
/// Helper to update validator match state as needed for the given string
/// and event handler return codes.
///
/// This effectively asks permission from event handlers to proceed with the
/// change, updates d_validatorMatchState and returns an appropriate bool.
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
protected bool HandleValidityChangeForString(string str)
{
var newState = GetStringMatchState(str);
if (newState == _validatorMatchState)
{
return(_previousValidityChangeResponse);
}
var args = new RegexMatchStateEventArgs(this, newState);
OnTextValidityChanged(args);
var response = (args.handled != 0);
if (response)
{
_validatorMatchState = newState;
_previousValidityChangeResponse = true;
}
return(response);
}
/// <summary>
/// Handler called when something has caused the validity state of the
/// current text to change.
/// </summary>
/// <param name="e"></param>
protected virtual void OnTextValidityChanged(RegexMatchStateEventArgs e)
{
FireEvent(EventTextValidityChanged, e, EventNamespace);
}
