| /* |
| * Copyright 2000-2012 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.codeInsight.lookup.impl; |
| |
| import com.intellij.ui.ListExpandableItemsHandler; |
| import com.intellij.ui.components.JBScrollPane; |
| import org.jetbrains.annotations.NotNull; |
| |
| import javax.swing.*; |
| import java.awt.event.*; |
| |
| /** |
| * @author Konstantin Bulenkov |
| */ |
| public class CompletionExtender extends ListExpandableItemsHandler { |
| |
| public CompletionExtender(@NotNull final JList list) { |
| super(list); |
| list.addComponentListener(new ComponentAdapter() { |
| @Override |
| public void componentShown(ComponentEvent e) { |
| JScrollPane scrollPane = JBScrollPane.findScrollPane(myComponent); |
| if (scrollPane != null) { |
| final JScrollBar verticalScrollBar = scrollPane.getVerticalScrollBar(); |
| final JScrollBar horizontalScrollBar = scrollPane.getVerticalScrollBar(); |
| final AdjustmentListener listener = new AdjustmentListener() { |
| @Override |
| public void adjustmentValueChanged(AdjustmentEvent e) { |
| updateCurrentSelection(); |
| } |
| }; |
| if (verticalScrollBar != null) verticalScrollBar.addAdjustmentListener(listener); |
| if (horizontalScrollBar != null) horizontalScrollBar.addAdjustmentListener(listener); |
| |
| list.removeComponentListener(this); |
| } |
| } |
| }); |
| } |
| @Override |
| protected void handleSelectionChange(Integer selected, boolean processIfUnfocused) { |
| super.handleSelectionChange(myComponent.getSelectedIndex(), true); |
| } |
| |
| @Override |
| protected void onFocusLost() { |
| //don't hide hint |
| } |
| |
| @Override |
| protected void handleMouseEvent(MouseEvent e, boolean forceUpdate) { |
| // don't show or hide hint on mouse events |
| } |
| |
| @Override |
| protected boolean isPaintBorder() { |
| return false; |
| } |
| |
| @Override |
| protected boolean isPopup() { |
| return false; |
| } |
| } |