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); }