@Override
public AutoCompletionDecision handleAutoCompletionPossibility(
@NotNull AutoCompletionContext context) {
final CompletionParameters parameters = context.getParameters();
if (parameters.getCompletionType() != CompletionType.SMART
&& parameters.getCompletionType() != CompletionType.BASIC) {
return null;
}
boolean needInsertBrace = false;
boolean needInsertParenth = false;
final LookupElement[] items = context.getItems();
if (items.length > 1) {
String commonName = null;
final ArrayList<PsiMethod> allMethods = new ArrayList<PsiMethod>();
for (LookupElement item : items) {
Object o = item.getPsiElement();
if (item.getUserData(LookupItem.FORCE_SHOW_SIGNATURE_ATTR) != null
|| !(o instanceof PsiMethod)) {
return AutoCompletionDecision.SHOW_LOOKUP;
}
final PsiMethod method = (PsiMethod) o;
final JavaChainLookupElement chain = item.as(JavaChainLookupElement.CLASS_CONDITION_KEY);
final String name =
method.getName() + "#" + (chain == null ? "" : chain.getQualifier().getLookupString());
if (commonName != null && !commonName.equals(name)) {
return AutoCompletionDecision.SHOW_LOOKUP;
}
if (hasOnlyClosureParams(method)) {
needInsertBrace = true;
} else {
needInsertParenth = true;
}
if (needInsertBrace && needInsertParenth) {
return AutoCompletionDecision.SHOW_LOOKUP;
}
commonName = name;
allMethods.add(method);
item.putUserData(JavaCompletionUtil.ALL_METHODS_ATTRIBUTE, allMethods);
}
return AutoCompletionDecision.insertItem(
JavaMethodMergingContributor.findBestOverload(items));
}
return super.handleAutoCompletionPossibility(context);
}
@Nullable
public static PsiElement getTargetElement(LookupElement lookupElement) {
PsiElement psiElement = lookupElement.getPsiElement();
if (psiElement != null) {
return getOriginalElement(psiElement);
}
Object object = lookupElement.getObject();
if (object instanceof LookupValueWithPsiElement) {
final PsiElement element = ((LookupValueWithPsiElement) object).getElement();
if (element != null) return getOriginalElement(element);
}
return null;
}