private boolean hideAutopopupIfMeaningless() {
if (!myLookup.isLookupDisposed()
&& isAutopopupCompletion()
&& !myLookup.isSelectionTouched()
&& !myLookup.isCalculating()) {
myLookup.refreshUi(true);
final List<LookupElement> items = myLookup.getItems();
for (LookupElement item : items) {
if (!myLookup.itemPattern(item).equals(item.getLookupString())) {
return false;
}
if (item.isValid()) {
final LookupElementPresentation presentation = new LookupElementPresentation();
item.renderElement(presentation);
if (StringUtil.isNotEmpty(presentation.getTailText())) {
return false;
}
}
}
myLookup.hideLookup(false);
LOG.assertTrue(CompletionServiceImpl.getCompletionService().getCurrentCompletion() == null);
CompletionServiceImpl.setCompletionPhase(new CompletionPhase.EmptyAutoPopup(this));
return true;
}
return false;
}
private boolean updateLookup() {
ApplicationManager.getApplication().assertIsDispatchThread();
if (isOutdated() || !shouldShowLookup()) return false;
boolean justShown = false;
if (!myLookup.isShown()) {
if (hideAutopopupIfMeaningless()) {
return false;
}
if (Registry.is("dump.threads.on.empty.lookup")
&& myLookup.isCalculating()
&& myLookup.getItems().isEmpty()) {
PerformanceWatcher.getInstance().dumpThreads(true);
}
if (StringUtil.isEmpty(myLookup.getAdvertisementText()) && !isAutopopupCompletion()) {
final String text = DefaultCompletionContributor.getDefaultAdvertisementText(myParameters);
if (text != null) {
myLookup.setAdvertisementText(text);
}
}
if (!myLookup.showLookup()) {
return false;
}
justShown = true;
}
myLookup.refreshUi(true, justShown);
hideAutopopupIfMeaningless();
if (justShown) {
myLookup.ensureSelectionVisible();
}
return true;
}
public void itemSelected(LookupEvent event) {
finishCompletionProcess(false);
LookupElement item = event.getItem();
if (item == null) return;
setMergeCommand();
CodeCompletionHandlerBase.lookupItemSelected(
CompletionProgressIndicator.this,
item,
event.getCompletionChar(),
myLookup.getItems());
}
@Override
public boolean isEnabled(Editor editor, DataContext dataContext) {
LookupImpl lookup = (LookupImpl) LookupManager.getActiveLookup(editor);
if (lookup == null) return false;
if (!lookup.isAvailableToUser()) return false;
if (focusedOnly && !CompletionPreview.hasPreview(lookup) && !lookup.isFocused()) return false;
if (finishingChar == Lookup.NORMAL_SELECT_CHAR
&& hasTemplatePrefix(lookup, TemplateSettings.ENTER_CHAR)
|| finishingChar == Lookup.REPLACE_SELECT_CHAR
&& hasTemplatePrefix(lookup, TemplateSettings.TAB_CHAR)) {
return false;
}
if (finishingChar == Lookup.REPLACE_SELECT_CHAR) {
if (lookup.isFocused()) {
return true;
}
return !lookup.getItems().isEmpty();
}
return true;
}
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;
}