@Override
public Object[] getFileReferenceCompletionVariants(final FileReference reference) {
final String s = reference.getText();
if (s != null && s.equals("/")) {
return ArrayUtil.EMPTY_OBJECT_ARRAY;
}
final CommonProcessors.CollectUniquesProcessor<PsiFileSystemItem> collector =
new CommonProcessors.CollectUniquesProcessor<PsiFileSystemItem>();
final PsiElementProcessor<PsiFileSystemItem> processor =
new PsiElementProcessor<PsiFileSystemItem>() {
@Override
public boolean execute(@NotNull PsiFileSystemItem fileSystemItem) {
return new FilteringProcessor<PsiFileSystemItem>(
reference.getFileReferenceSet().getReferenceCompletionFilter(), collector)
.process(FileReference.getOriginalFile(fileSystemItem));
}
};
List<Object> additionalItems = ContainerUtil.newArrayList();
for (PsiFileSystemItem context : reference.getContexts()) {
for (final PsiElement child : context.getChildren()) {
if (child instanceof PsiFileSystemItem) {
processor.execute((PsiFileSystemItem) child);
}
}
if (context instanceof FileReferenceResolver) {
additionalItems.addAll(((FileReferenceResolver) context).getVariants(reference));
}
}
final FileType[] types = reference.getFileReferenceSet().getSuitableFileTypes();
final THashSet<PsiElement> set =
new THashSet<PsiElement>(collector.getResults(), VARIANTS_HASHING_STRATEGY);
final PsiElement[] candidates = PsiUtilCore.toPsiElementArray(set);
final Object[] variants = new Object[candidates.length + additionalItems.size()];
for (int i = 0; i < candidates.length; i++) {
PsiElement candidate = candidates[i];
Object item = reference.createLookupItem(candidate);
if (item == null) {
item = FileInfoManager.getFileLookupItem(candidate);
}
if (candidate instanceof PsiFile
&& item instanceof LookupElement
&& types.length > 0
&& ArrayUtil.contains(((PsiFile) candidate).getFileType(), types)) {
item = PrioritizedLookupElement.withPriority((LookupElement) item, Double.MAX_VALUE);
}
variants[i] = item;
}
for (int i = 0; i < additionalItems.size(); i++) {
variants[i + candidates.length] = additionalItems.get(i);
}
if (!reference.getFileReferenceSet().isUrlEncoded()) {
return variants;
}
List<Object> encodedVariants = new ArrayList<Object>(variants.length + additionalItems.size());
for (int i = 0; i < candidates.length; i++) {
final PsiElement element = candidates[i];
if (element instanceof PsiNamedElement) {
final PsiNamedElement psiElement = (PsiNamedElement) element;
String name = psiElement.getName();
final String encoded = reference.encode(name, psiElement);
if (encoded == null) continue;
if (!encoded.equals(name)) {
final Icon icon =
psiElement.getIcon(Iconable.ICON_FLAG_READ_STATUS | Iconable.ICON_FLAG_VISIBILITY);
LookupElementBuilder item =
FileInfoManager.getFileLookupItem(candidates[i], encoded, icon);
encodedVariants.add(item.withTailText(" (" + name + ")"));
} else {
encodedVariants.add(variants[i]);
}
}
}
encodedVariants.addAll(additionalItems);
return ArrayUtil.toObjectArray(encodedVariants);
}
