void
nsAutoCompleteController::AfterSearches()
{
mResultCache.Clear();
if (mSearchesFailed == mSearches.Count())
PostSearchCleanup();
}
nsresult
nsAutoCompleteController::StartSearch()
{
NS_ENSURE_STATE(mInput);
nsCOMPtr<nsIAutoCompleteInput> input(mInput);
mSearchStatus = nsIAutoCompleteController::STATUS_SEARCHING;
mDefaultIndexCompleted = PR_FALSE;
// Cache the current results so that we can pass these through to all the
// searches without losing them
nsCOMArray<nsIAutoCompleteResult> resultCache;
if (!resultCache.AppendObjects(mResults)) {
return NS_ERROR_OUT_OF_MEMORY;
}
PRUint32 count = mSearches.Count();
mSearchesOngoing = count;
mFirstSearchResult = PR_TRUE;
// notify the input that the search is beginning
input->OnSearchBegin();
PRUint32 searchesFailed = 0;
for (PRUint32 i = 0; i < count; ++i) {
nsCOMPtr<nsIAutoCompleteSearch> search = mSearches[i];
nsIAutoCompleteResult *result = resultCache.SafeObjectAt(i);
if (result) {
PRUint16 searchResult;
result->GetSearchResult(&searchResult);
if (searchResult != nsIAutoCompleteResult::RESULT_SUCCESS &&
searchResult != nsIAutoCompleteResult::RESULT_SUCCESS_ONGOING &&
searchResult != nsIAutoCompleteResult::RESULT_NOMATCH)
result = nsnull;
}
nsAutoString searchParam;
nsresult rv = input->GetSearchParam(searchParam);
if (NS_FAILED(rv))
return rv;
rv = search->StartSearch(mSearchString, searchParam, result, static_cast<nsIAutoCompleteObserver *>(this));
if (NS_FAILED(rv)) {
++searchesFailed;
--mSearchesOngoing;
}
}
if (searchesFailed == count)
PostSearchCleanup();
return NS_OK;
}
NS_IMETHODIMP
nsAutoCompleteController::StopSearch()
{
// Stop the timer if there is one
ClearSearchTimer();
// Stop any ongoing asynchronous searches
if (mSearchStatus == nsIAutoCompleteController::STATUS_SEARCHING) {
PRUint32 count = mSearches.Count();
for (PRUint32 i = 0; i < count; ++i) {
nsCOMPtr<nsIAutoCompleteSearch> search = mSearches[i];
search->StopSearch();
}
mSearchesOngoing = 0;
// since we were searching, but now we've stopped,
// we need to call PostSearchCleanup()
PostSearchCleanup();
}
return NS_OK;
}
nsresult
nsAutoCompleteController::ProcessResult(PRInt32 aSearchIndex, nsIAutoCompleteResult *aResult)
{
NS_ENSURE_STATE(mInput);
nsCOMPtr<nsIAutoCompleteInput> input(mInput);
// If this is the first search result we are processing
// we should clear out the previously cached results
if (mFirstSearchResult) {
ClearResults();
mFirstSearchResult = false;
}
PRUint16 result = 0;
if (aResult)
aResult->GetSearchResult(&result);
// if our results are incremental, the search is still ongoing
if (result != nsIAutoCompleteResult::RESULT_SUCCESS_ONGOING &&
result != nsIAutoCompleteResult::RESULT_NOMATCH_ONGOING) {
--mSearchesOngoing;
}
PRUint32 oldMatchCount = 0;
PRUint32 matchCount = 0;
if (aResult)
aResult->GetMatchCount(&matchCount);
PRInt32 resultIndex = mResults.IndexOf(aResult);
if (resultIndex == -1) {
// cache the result
mResults.AppendObject(aResult);
mMatchCounts.AppendElement(matchCount);
resultIndex = mResults.Count() - 1;
}
else {
oldMatchCount = mMatchCounts[aSearchIndex];
mMatchCounts[resultIndex] = matchCount;
}
bool isTypeAheadResult = false;
if (aResult) {
aResult->GetTypeAheadResult(&isTypeAheadResult);
}
if (!isTypeAheadResult) {
PRUint32 oldRowCount = mRowCount;
// If the search failed, increase the match count to include the error
// description.
if (result == nsIAutoCompleteResult::RESULT_FAILURE) {
nsAutoString error;
aResult->GetErrorDescription(error);
if (!error.IsEmpty()) {
++mRowCount;
if (mTree) {
mTree->RowCountChanged(oldRowCount, 1);
}
}
} else if (result == nsIAutoCompleteResult::RESULT_SUCCESS ||
result == nsIAutoCompleteResult::RESULT_SUCCESS_ONGOING) {
// Increase the match count for all matches in this result.
mRowCount += matchCount - oldMatchCount;
if (mTree) {
mTree->RowCountChanged(oldRowCount, matchCount - oldMatchCount);
}
}
// Refresh the popup view to display the new search results
nsCOMPtr<nsIAutoCompletePopup> popup;
input->GetPopup(getter_AddRefs(popup));
NS_ENSURE_TRUE(popup != nsnull, NS_ERROR_FAILURE);
popup->Invalidate();
// Make sure the popup is open, if necessary, since we now have at least one
// search result ready to display. Don't force the popup closed if we might
// get results in the future to avoid unnecessarily canceling searches.
if (mRowCount) {
OpenPopup();
} else if (result != nsIAutoCompleteResult::RESULT_NOMATCH_ONGOING) {
ClosePopup();
}
}
if (result == nsIAutoCompleteResult::RESULT_SUCCESS ||
result == nsIAutoCompleteResult::RESULT_SUCCESS_ONGOING) {
// Try to autocomplete the default index for this search.
CompleteDefaultIndex(resultIndex);
}
if (mSearchesOngoing == 0) {
// If this is the last search to return, cleanup.
PostSearchCleanup();
}
return NS_OK;
}
nsresult
nsAutoCompleteController::StartSearch()
{
NS_ENSURE_STATE(mInput);
nsCOMPtr<nsIAutoCompleteInput> input(mInput);
mSearchStatus = nsIAutoCompleteController::STATUS_SEARCHING;
mDefaultIndexCompleted = false;
// Cache the current results so that we can pass these through to all the
// searches without losing them
nsCOMArray<nsIAutoCompleteResult> resultCache;
if (!resultCache.AppendObjects(mResults)) {
return NS_ERROR_OUT_OF_MEMORY;
}
PRUint32 count = mSearches.Count();
mSearchesOngoing = count;
mFirstSearchResult = true;
// notify the input that the search is beginning
input->OnSearchBegin();
PRUint32 searchesFailed = 0;
for (PRUint32 i = 0; i < count; ++i) {
nsCOMPtr<nsIAutoCompleteSearch> search = mSearches[i];
nsIAutoCompleteResult *result = resultCache.SafeObjectAt(i);
if (result) {
PRUint16 searchResult;
result->GetSearchResult(&searchResult);
if (searchResult != nsIAutoCompleteResult::RESULT_SUCCESS &&
searchResult != nsIAutoCompleteResult::RESULT_SUCCESS_ONGOING &&
searchResult != nsIAutoCompleteResult::RESULT_NOMATCH)
result = nsnull;
}
nsAutoString searchParam;
nsresult rv = input->GetSearchParam(searchParam);
if (NS_FAILED(rv))
return rv;
rv = search->StartSearch(mSearchString, searchParam, result, static_cast<nsIAutoCompleteObserver *>(this));
if (NS_FAILED(rv)) {
++searchesFailed;
--mSearchesOngoing;
}
// Because of the joy of nested event loops (which can easily happen when some
// code uses a generator for an asynchronous AutoComplete search),
// nsIAutoCompleteSearch::StartSearch might cause us to be detached from our input
// field. The next time we iterate, we'd be touching something that we shouldn't
// be, and result in a crash.
if (!mInput) {
// The search operation has been finished.
return NS_OK;
}
}
if (searchesFailed == count)
PostSearchCleanup();
return NS_OK;
}
