private static int getItemToSelect(
LookupImpl lookup,
List<LookupElement> items,
boolean onExplicitAction,
@Nullable LookupElement mostRelevant) {
if (items.isEmpty() || lookup.getFocusDegree() == LookupImpl.FocusDegree.UNFOCUSED) {
return 0;
}
if (lookup.isSelectionTouched() || !onExplicitAction) {
final LookupElement lastSelection = lookup.getCurrentItem();
int old = ContainerUtil.indexOfIdentity(items, lastSelection);
if (old >= 0) {
return old;
}
Object selectedValue = ((LookupImpl) lookup).getList().getSelectedValue();
if (selectedValue instanceof EmptyLookupItem
&& ((EmptyLookupItem) selectedValue).isLoading()) {
int index = ((LookupImpl) lookup).getList().getSelectedIndex();
if (index >= 0 && index < items.size()) {
return index;
}
}
for (int i = 0; i < items.size(); i++) {
String invariant = PRESENTATION_INVARIANT.get(items.get(i));
if (invariant != null && invariant.equals(PRESENTATION_INVARIANT.get(lastSelection))) {
return i;
}
}
}
String selectedText = lookup.getEditor().getSelectionModel().getSelectedText();
for (int i = 0; i < items.size(); i++) {
LookupElement item = items.get(i);
if (isPrefixItem(lookup, item, true) && !isLiveTemplate(item)
|| item.getLookupString().equals(selectedText)) {
return i;
}
}
return Math.max(0, ContainerUtil.indexOfIdentity(items, mostRelevant));
}
public static boolean hasTemplatePrefix(LookupImpl lookup, char shortcutChar) {
lookup.refreshUi(false, false); // to bring the list model up to date
CompletionProcess completion = CompletionService.getCompletionService().getCurrentCompletion();
if (completion == null || !completion.isAutopopupCompletion()) {
return false;
}
if (lookup.isSelectionTouched()) {
return false;
}
final PsiFile file = lookup.getPsiFile();
if (file == null) return false;
final Editor editor = lookup.getEditor();
PsiDocumentManager.getInstance(file.getProject()).commitDocument(editor.getDocument());
final int end = editor.getCaretModel().getOffset();
final int start = lookup.getLookupStart();
final String prefix =
!lookup.getItems().isEmpty()
? editor.getDocument().getText(TextRange.create(start, end))
: ListTemplatesHandler.getPrefix(editor.getDocument(), end);
if (TemplateSettings.getInstance().getTemplates(prefix).isEmpty()) {
return false;
}
for (TemplateImpl template :
SurroundWithTemplateHandler.getApplicableTemplates(editor, file, false)) {
if (prefix.equals(template.getKey())
&& shortcutChar == TemplateSettings.getInstance().getShortcutChar(template)) {
return true;
}
}
return false;
}