void SuggestionsSidebarBlock::QueryProvider(SuggestionsBackend& backend, CatalogItem *item, uint64_t queryId)
{
m_pendingQueries++;
// we need something to talk to GUI thread through that is guaranteed
// to exist, and the app object is a good choice:
wxApp *app = wxTheApp;
std::weak_ptr<SuggestionsSidebarBlock> weakSelf = std::dynamic_pointer_cast<SuggestionsSidebarBlock>(shared_from_this());
m_provider->SuggestTranslation
(
backend,
m_parent->GetCurrentLanguage(),
item->GetString().ToStdWstring(),
SUGGESTIONS_REQUEST_COUNT,
// when receiving data
[=](const SuggestionsList& hits){
app->CallAfter([weakSelf,queryId,hits]{
auto self = weakSelf.lock();
// maybe this call is already out of date:
if (!self || self->m_latestQueryId != queryId)
return;
self->UpdateSuggestions(hits);
if (--self->m_pendingQueries == 0)
self->OnQueriesFinished();
});
},
// on error:
[=](std::exception_ptr e){
app->CallAfter([weakSelf,queryId,e]{
auto self = weakSelf.lock();
// maybe this call is already out of date:
if (!self || self->m_latestQueryId != queryId)
return;
self->SetMessage("SuggestionError", DescribeException(e));
if (--self->m_pendingQueries == 0)
self->OnQueriesFinished();
});
}
);
}
void SuggestionsSidebarBlock::ReportError(SuggestionsBackend*, std::exception_ptr e)
{
SetMessage("SuggestionError", DescribeException(e));
}
