@Override
public void beforeCompletion(@NotNull final CompletionInitializationContext context) {
final PsiFile file = context.getFile();
if (file instanceof PsiJavaFile) {
JavaCompletionUtil.initOffsets(file, context.getOffsetMap());
autoImport(file, context.getStartOffset() - 1, context.getEditor());
if (context.getCompletionType() == CompletionType.BASIC) {
if (semicolonNeeded(context.getEditor(), file, context.getStartOffset())) {
context.setDummyIdentifier(CompletionInitializationContext.DUMMY_IDENTIFIER.trim() + ";");
return;
}
final PsiJavaCodeReferenceElement ref =
PsiTreeUtil.findElementOfClassAtOffset(
file, context.getStartOffset(), PsiJavaCodeReferenceElement.class, false);
if (ref != null && !(ref instanceof PsiReferenceExpression)) {
if (ref.getParent() instanceof PsiTypeElement) {
context.setDummyIdentifier(
CompletionInitializationContext.DUMMY_IDENTIFIER.trim() + ";");
}
if (JavaSmartCompletionContributor.AFTER_NEW.accepts(ref)) {
final PsiReferenceParameterList paramList = ref.getParameterList();
if (paramList != null && paramList.getTextLength() > 0) {
context
.getOffsetMap()
.addOffset(
ConstructorInsertHandler.PARAM_LIST_START,
paramList.getTextRange().getStartOffset());
context
.getOffsetMap()
.addOffset(
ConstructorInsertHandler.PARAM_LIST_END,
paramList.getTextRange().getEndOffset());
}
}
return;
}
final PsiElement element = file.findElementAt(context.getStartOffset());
if (psiElement().inside(PsiAnnotation.class).accepts(element)) {
return;
}
context.setDummyIdentifier(CompletionInitializationContext.DUMMY_IDENTIFIER_TRIMMED);
}
}
}
private void doComplete(
CompletionInitializationContext initContext,
boolean hasModifiers,
int invocationCount,
PsiFile hostCopy,
OffsetMap hostMap,
OffsetTranslator translator) {
final Editor editor = initContext.getEditor();
CompletionAssertions.checkEditorValid(editor);
CompletionContext context =
createCompletionContext(
hostCopy,
hostMap.getOffset(CompletionInitializationContext.START_OFFSET),
hostMap,
initContext.getFile());
LookupImpl lookup = obtainLookup(editor);
CompletionParameters parameters = createCompletionParameters(invocationCount, context, editor);
CompletionPhase phase = CompletionServiceImpl.getCompletionPhase();
if (phase instanceof CompletionPhase.CommittingDocuments) {
if (phase.indicator != null) {
phase.indicator.closeAndFinish(false);
}
((CompletionPhase.CommittingDocuments) phase).replaced = true;
} else {
CompletionServiceImpl.assertPhase(CompletionPhase.NoCompletion.getClass());
}
final Semaphore freezeSemaphore = new Semaphore();
freezeSemaphore.down();
final CompletionProgressIndicator indicator =
new CompletionProgressIndicator(
editor,
parameters,
this,
freezeSemaphore,
initContext.getOffsetMap(),
hasModifiers,
lookup);
Disposer.register(indicator, hostMap);
Disposer.register(indicator, context.getOffsetMap());
Disposer.register(indicator, translator);
CompletionServiceImpl.setCompletionPhase(
synchronous
? new CompletionPhase.Synchronous(indicator)
: new CompletionPhase.BgCalculation(indicator));
final AtomicReference<LookupElement[]> data = indicator.startCompletion(initContext);
if (!synchronous) {
return;
}
if (freezeSemaphore.waitFor(2000)) {
final LookupElement[] allItems = data.get();
if (allItems != null
&& !indicator.isRunning()
&& !indicator
.isCanceled()) { // the completion is really finished, now we may auto-insert or show
// lookup
completionFinished(
initContext.getStartOffset(),
initContext.getSelectionEndOffset(),
indicator,
allItems,
hasModifiers);
checkNotSync(indicator, allItems);
return;
}
}
CompletionServiceImpl.setCompletionPhase(new CompletionPhase.BgCalculation(indicator));
indicator.showLookup();
}