public LookupImpl(Project project, Editor editor, @NotNull LookupArranger arranger) {
super(new JPanel(new BorderLayout()));
setForceShowAsPopup(true);
setCancelOnClickOutside(false);
setResizable(true);
AbstractPopup.suppressMacCornerFor(getComponent());
myProject = project;
myEditor = editor;
myArranger = arranger;
myPresentableArranger = arranger;
myCellRenderer = new LookupCellRenderer(this);
myList.setCellRenderer(myCellRenderer);
myList.setFocusable(false);
myList.setFixedCellWidth(50);
myList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
myList.setBackground(LookupCellRenderer.BACKGROUND_COLOR);
myList.getExpandableItemsHandler();
myAdComponent = new Advertiser();
myOffsets = new LookupOffsets(editor);
final CollectionListModel<LookupElement> model = getListModel();
addEmptyItem(model);
updateListHeight(model);
addListeners();
}
private boolean updateList(boolean onExplicitAction, boolean reused) {
if (!ApplicationManager.getApplication().isUnitTestMode()) {
ApplicationManager.getApplication().assertIsDispatchThread();
}
checkValid();
CollectionListModel<LookupElement> listModel = getListModel();
Pair<List<LookupElement>, Integer> pair;
synchronized (myList) {
pair = myPresentableArranger.arrangeItems(this, onExplicitAction || reused);
}
List<LookupElement> items = pair.first;
Integer toSelect = pair.second;
if (toSelect == null || toSelect < 0 || items.size() > 0 && toSelect >= items.size()) {
LOG.error(
"Arranger "
+ myPresentableArranger
+ " returned invalid selection index="
+ toSelect
+ "; items="
+ items);
toSelect = 0;
}
myOffsets.checkMinPrefixLengthChanges(items, this);
List<LookupElement> oldModel = listModel.toList();
listModel.removeAll();
if (!items.isEmpty()) {
listModel.add(items);
} else {
addEmptyItem(listModel);
}
updateListHeight(listModel);
myList.setSelectedIndex(toSelect);
return !ContainerUtil.equalsIdentity(oldModel, items);
}