public void Then(
Delegate fulfilledHandler, Delegate errorHandler = null, Delegate progressHandler = null)
{
var req = new XMLHttpRequest();
req.OnReadyStateChange = () => {
if (req.ReadyState != AjaxReadyState.Done)
{
return;
}
if (req.Status >= 200 && req.Status < 400)
{
Logger.Debug(GetType(), "upload success");
fulfilledHandler?.Call(null, ResultHolder <XMLHttpRequest> .CreateSuccess(req));
return;
}
Logger.Debug(GetType(), "upload error");
fulfilledHandler?.Call(
null, ResultHolder <XMLHttpRequest> .CreateFailure(req.ResponseText, null, req));
};
req.Open(_method, _url, true);
req.SetRequestHeader("Cache-Control", "no-cache");
req.SetRequestHeader("Pragma", "no-cache");
var tzOffset = Script.Eval <string>("new Date().getTimezoneOffset() + \"\"");
req.SetRequestHeader(Philadelphia.Common.Model.Magics.TimeZoneOffsetFieldName, tzOffset);
try {
var tzCode = Script.Eval <object>("Intl.DateTimeFormat().resolvedOptions().timeZone");
if (Script.IsDefined(tzCode))
{
req.SetRequestHeader(Philadelphia.Common.Model.Magics.TimeZoneCodeFieldName, tzCode.ToString());
}
} catch (Exception) {
//most likely it is unsupported
Logger.Error(GetType(), "could not determine timeZone");
}
if (CsrfToken != null)
{
req.SetRequestHeader(Philadelphia.Common.Model.Magics.CsrfTokenFieldName, CsrfToken);
}
if (_frmData != null)
{
req.Send(_frmData);
}
else
{
req.Send(_dataToPost);
}
}
private async Task <ResultHolder <DataT[]> > FetchMatching()
{
var matchingValuesKey = Guid.NewGuid().ToString();
_matchingValuesKey = matchingValuesKey;
var par = _input.Value;
await Task.Delay(_delayMilisec);
var mayUse = _matchingValuesKey == matchingValuesKey;
Logger.Debug(GetType(),
"autocomplete awaiting for result of input {0} requestCount={1} mayUse={2}",
par, _requestCount, mayUse);
if (!mayUse)
{
return(ResultHolder <DataT[]> .CreateFailure("autocomplete[1] skipping due to new input"));
}
DataT[] result;
try {
result = await _matchingValuesProvider(MaxVisibleItems, par);
} catch (Exception ex) {
return(ResultHolder <DataT[]> .CreateFailure("autocomplete result not received", ex));
}
mayUse = _matchingValuesKey == matchingValuesKey;
Logger.Debug(GetType(),
"autocomplete result received itemsCount={0} for input={1} currentInputIs={2} mayUse?={3}",
result.Length, par, _input.Value, mayUse);
if (!mayUse)
{
return(ResultHolder <DataT[]> .CreateFailure("autocomplete[2] skipping due to new input"));
}
return(ResultHolder <DataT[]> .CreateSuccess(result));
}