public void Search()
{
if (_lastUsersRequest != null)
{
_lastUsersRequest.Cancel();
}
var text = Text.Trim();
if (string.IsNullOrEmpty(text))
{
LazyItems.Clear();
Items.Clear();
Status = string.IsNullOrEmpty(Text)? string.Empty : AppResources.NoResults;
return;
}
SearchUsersRequest nextUsersRequest;
if (!_searchResultsCache.TryGetValue(text, out nextUsersRequest))
{
IList <TLUserBase> source;
if (_lastUsersRequest != null &&
text.IndexOf(_lastUsersRequest.Text, StringComparison.OrdinalIgnoreCase) != -1)
{
source = _lastUsersRequest.Source;
}
else
{
_source = _source ??
CacheService.GetContacts()
.Where(x => !(x is TLUserEmpty) && x.Index != StateService.CurrentUserId)
.OrderBy(x => x.FullName)
.ToList();
source = _source;
}
nextUsersRequest = new SearchUsersRequest(text, source);
}
IsWorking = true;
nextUsersRequest.ProcessAsync(results =>
Execute.BeginOnUIThread(() =>
{
if (nextUsersRequest.IsCanceled)
{
return;
}
Status = string.Empty;
Items.Clear();
LazyItems.Clear();
if (results.Count > 0)
{
Items.Add(new TLServiceText {
Text = AppResources.Contacts
});
}
for (var i = 0; i < results.Count; i++)
{
if (i < 6)
{
Items.Add(results[i]);
}
else
{
LazyItems.Add(results[i]);
}
}
IsWorking = false;
//Status = Items.Count == 0 ? AppResources.NoResults : string.Empty;
//return;
if (LazyItems.Count > 0)
{
PopulateItems(() => ProcessGlobalSearch(nextUsersRequest));
}
else
{
ProcessGlobalSearch(nextUsersRequest);
}
}));
_searchResultsCache[nextUsersRequest.Text] = nextUsersRequest;
_lastUsersRequest = nextUsersRequest;
}
public void Search()
{
if (_lastUsersRequest != null)
{
_lastUsersRequest.Cancel();
}
var text = Text.Trim();
if (string.IsNullOrEmpty(text))
{
System.Diagnostics.Debug.WriteLine("EmptyText text={0} canceled={1} items_count={2} current_text={3}", text, _lastUsersRequest != null ? _lastUsersRequest.IsCanceled.ToString() : "null", LazyItems.Count, Text);
LazyItems.Clear();
Items.Clear();
Status = string.Empty;
return;
}
SearchUsersRequest nextUsersRequest;
if (!_searchResultsCache.TryGetValue(text, out nextUsersRequest))
{
IList <TLUserBase> source;
if (_lastUsersRequest != null &&
text.IndexOf(_lastUsersRequest.Text, StringComparison.OrdinalIgnoreCase) != -1)
{
source = _lastUsersRequest.Source;
}
else
{
source = Source;
}
nextUsersRequest = new SearchUsersRequest(text, source);
}
IsWorking = true;
nextUsersRequest.ProcessAsync(results =>
Execute.BeginOnUIThread(() =>
{
if (nextUsersRequest.IsCanceled)
{
return;
}
Items.Clear();
LazyItems.Clear();
for (var i = 0; i < results.Count; i++)
{
if (i < 6)
{
Items.Add(results[i]);
}
else
{
LazyItems.Add(results[i]);
}
}
Status = Items.Count > 0 ? string.Empty : AppResources.NoResults;
IsWorking = false;
if (LazyItems.Count > 0)
{
Execute.BeginOnUIThread(() =>
{
if (nextUsersRequest.IsCanceled)
{
return;
}
System.Diagnostics.Debug.WriteLine("ContinueResults text={0} canceled={1} items_count={2} current_text={3}", nextUsersRequest.Text, nextUsersRequest.IsCanceled, LazyItems.Count, Text);
foreach (var item in LazyItems)
{
Items.Add(item);
}
LazyItems.Clear();
Status = Items.Count > 0 ? string.Empty : AppResources.NoResults;
});
}
}));
_searchResultsCache[nextUsersRequest.Text] = nextUsersRequest;
_lastUsersRequest = nextUsersRequest;
}