private void UpdateQueryView(ICatpchaQueryView oldView, ICatpchaQueryView newView)
{
if (oldView != newView)
{
if (oldView != null)
{
oldView.PropertyChanged -= QueryViewOnPropertyChanged;
}
if (newView != null)
{
newView.PropertyChanged += QueryViewOnPropertyChanged;
}
if (oldView != newView)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(nameof(CanLoad)));
}
}
}
private void UpdateCaptchaData()
{
var ov = queryView;
try
{
if (ov != null && QueryParam != null)
{
if (oldCaptchaType == QueryParam.CaptchaType || StringComparer.CurrentCultureIgnoreCase.Equals(oldEngine, QueryParam.Engine))
{
return;
}
}
CaptchaContainer.Children.Clear();
if (QueryParam != null)
{
if (QueryParam.CaptchaType == CaptchaType.DvachCaptcha && CoreConstants.Engine.Makaba.Equals(QueryParam.Engine, StringComparison.OrdinalIgnoreCase))
{
var qv = new DvachCaptchaQueryView();
queryView = qv;
CaptchaContainer.Children.Add(qv);
qv.CaptchaQueryResult += (sender, e) =>
{
CaptchaQueryResult?.Invoke(this, e);
};
UnknownCaptcha.Visibility = Visibility.Collapsed;
CaptchaContainer.Visibility = Visibility.Visible;
return;
}
}
queryView = null;
UnknownCaptcha.Visibility = Visibility.Visible;
CaptchaContainer.Visibility = Visibility.Collapsed;
}
finally
{
oldCaptchaType = QueryParam?.CaptchaType;
oldEngine = QueryParam?.Engine;
UpdateQueryView(ov, queryView);
}
}
