public void Search()
{
if (_lastDocumentsRequest != null)
{
_lastDocumentsRequest.Cancel();
}
var text = Text.Trim();
if (string.IsNullOrEmpty(text))
{
LazyItems.Clear();
Items.Clear();
Status = string.IsNullOrEmpty(Text) ? AppResources.SearchAmongYourFiles : AppResources.NoResults;
return;
}
SearchDocumentsRequest nextDocumentsRequest;
if (!_searchResultsCache.TryGetValue(text, out nextDocumentsRequest))
{
IList <TLMessageBase> source;
if (_lastDocumentsRequest != null &&
text.IndexOf(_lastDocumentsRequest.Text, StringComparison.OrdinalIgnoreCase) != -1)
{
source = _lastDocumentsRequest.Source;
}
else
{
source = _source;
}
nextDocumentsRequest = new SearchDocumentsRequest(CurrentItem.ToInputPeer(), text, source);
}
IsWorking = true;
nextDocumentsRequest.ProcessAsync(results =>
Telegram.Api.Helpers.Execute.BeginOnUIThread(() =>
{
if (nextDocumentsRequest.IsCanceled)
{
return;
}
Status = results.Count > 0 ? string.Empty : Status;
Items.Clear();
LazyItems.Clear();
for (var i = 0; i < results.Count; i++)
{
if (i < 6)
{
Items.Add((TLMessage)results[i]);
}
else
{
LazyItems.Add((TLMessage)results[i]);
}
}
IsWorking = false;
NotifyOfPropertyChange(() => IsEmptyList);
if (LazyItems.Count > 0)
{
PopulateItems(() => ProcessGlobalSearch(nextDocumentsRequest));
}
else
{
ProcessGlobalSearch(nextDocumentsRequest);
}
}));
_searchResultsCache[nextDocumentsRequest.Text] = nextDocumentsRequest;
_lastDocumentsRequest = nextDocumentsRequest;
}
private void ProcessGlobalSearch(SearchDocumentsRequest nextDocumentsRequest)
{
if (nextDocumentsRequest.GlobalResults != null)
{
if (nextDocumentsRequest.GlobalResults.Count > 0)
{
BeginOnUIThread(() =>
{
if (nextDocumentsRequest.IsCanceled)
{
return;
}
foreach (var result in nextDocumentsRequest.GlobalResults)
{
Items.Add((TLMessage)result);
}
NotifyOfPropertyChange(() => IsEmptyList);
Status = Items.Count > 0 ? string.Empty : AppResources.NoResults;
});
}
}
else
{
IsWorking = true;
MTProtoService.SearchAsync(
nextDocumentsRequest.InputPeer,
new TLString(nextDocumentsRequest.Text),
null,
InputMessageFilter,
new TLInt(0),
new TLInt(0),
new TLInt(0),
new TLInt(0),
new TLInt(100),
new TLInt(0),
result =>
{
IsWorking = false;
nextDocumentsRequest.GlobalResults = new List <TLMessageBase>(result.Messages.Count);
foreach (var message in result.Messages)
{
if (nextDocumentsRequest.ResultsIndex == null ||
!nextDocumentsRequest.ResultsIndex.ContainsKey(message.Index))
{
nextDocumentsRequest.GlobalResults.Add(message);
}
}
BeginOnUIThread(() =>
{
if (nextDocumentsRequest.IsCanceled)
{
return;
}
if (nextDocumentsRequest.GlobalResults.Count > 0)
{
foreach (var message in nextDocumentsRequest.GlobalResults)
{
Items.Add((TLMessage)message);
}
NotifyOfPropertyChange(() => IsEmptyList);
}
Status = Items.Count > 0 ? string.Empty : AppResources.NoResults;
});
},
error =>
{
IsWorking = false;
if (TLRPCError.CodeEquals(error, ErrorCode.BAD_REQUEST) &&
TLRPCError.TypeEquals(error, ErrorType.QUERY_TOO_SHORT))
{
nextDocumentsRequest.GlobalResults = new List <TLMessageBase>();
}
else if (TLRPCError.CodeEquals(error, ErrorCode.FLOOD))
{
nextDocumentsRequest.GlobalResults = new List <TLMessageBase>();
BeginOnUIThread(() => MessageBox.Show(AppResources.FloodWaitString + Environment.NewLine + "(" + error.Message + ")", AppResources.Error, MessageBoxButton.OK));
}
Execute.ShowDebugMessage("messages.search error " + error);
});
}
}
