jdk/test/sanity/client/lib/SwingSet3/src/com/sun/swingset3/demos/textfield/JHistoryTextField.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/sanity/client/lib/SwingSet3/src/com/sun/swingset3/demos/textfield/JHistoryTextField.java Wed Mar 30 19:05:58 2016 -0700
@@ -0,0 +1,265 @@
+/*
+ * Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.sun.swingset3.demos.textfield;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.util.*;
+import java.util.List;
+import javax.swing.*;
+import javax.swing.border.LineBorder;
+import javax.swing.event.DocumentEvent;
+import javax.swing.event.DocumentListener;
+
+/**
+ * JHistoryTextField
+ *
+ * @author Pavel Porvatov
+ */
+public class JHistoryTextField extends JTextField {
+
+ private static final int MAX_VISIBLE_ROWS = 8;
+
+ private final List<String> history = new ArrayList<String>();
+
+ private final JPopupMenu popup = new JPopupMenu() {
+ @Override
+ public Dimension getPreferredSize() {
+ Dimension dimension = super.getPreferredSize();
+
+ dimension.width = JHistoryTextField.this.getWidth();
+
+ return dimension;
+ }
+ };
+
+ private final JList<String> list = new JList<>(new DefaultListModel<>());
+
+ private String userText;
+
+ private boolean notificationDenied;
+
+ public JHistoryTextField() {
+ JScrollPane scrollPane = new JScrollPane(list,
+ ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
+ ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
+ scrollPane.setHorizontalScrollBar(null);
+ scrollPane.setBorder(null);
+
+ list.setFocusable(false);
+
+ popup.add(scrollPane);
+ popup.setFocusable(false);
+ popup.setBorder(new LineBorder(Color.BLACK, 1));
+
+ getDocument().addDocumentListener(new DocumentListener() {
+ @Override
+ public void insertUpdate(DocumentEvent e) {
+ onTextChanged();
+ }
+
+ @Override
+ public void removeUpdate(DocumentEvent e) {
+ onTextChanged();
+ }
+
+ @Override
+ public void changedUpdate(DocumentEvent e) {
+ onTextChanged();
+ }
+ });
+
+ list.addMouseMotionListener(new MouseAdapter() {
+ @Override
+ public void mouseMoved(MouseEvent e) {
+ int index = list.locationToIndex(e.getPoint());
+
+ if (index >= 0 && list.getSelectedIndex() != index) {
+ list.setSelectedIndex(index);
+ }
+ }
+ });
+
+ list.addMouseListener(new MouseAdapter() {
+ @Override
+ public void mouseReleased(MouseEvent e) {
+ if (SwingUtilities.isLeftMouseButton(e)) {
+ setTextWithoutNotification(list.getSelectedValue());
+
+ popup.setVisible(false);
+ }
+ }
+ });
+
+ addFocusListener(new FocusAdapter() {
+ @Override
+ public void focusLost(FocusEvent e) {
+ popup.setVisible(false);
+ }
+ });
+
+ addKeyListener(new KeyAdapter() {
+ @Override
+ public void keyPressed(KeyEvent e) {
+ if (popup.isShowing()) {
+ switch (e.getKeyCode()) {
+ case KeyEvent.VK_UP: {
+ changeListSelectedIndex(-1);
+
+ break;
+ }
+
+ case KeyEvent.VK_PAGE_UP: {
+ changeListSelectedIndex(-list.getVisibleRowCount());
+
+ break;
+ }
+
+ case KeyEvent.VK_DOWN: {
+ changeListSelectedIndex(1);
+
+ break;
+ }
+
+ case KeyEvent.VK_PAGE_DOWN: {
+ changeListSelectedIndex(list.getVisibleRowCount());
+
+ break;
+ }
+
+ case KeyEvent.VK_ESCAPE: {
+ popup.setVisible(false);
+
+ setTextWithoutNotification(userText);
+
+ break;
+ }
+
+ case KeyEvent.VK_ENTER:
+ case KeyEvent.VK_LEFT:
+ case KeyEvent.VK_RIGHT: {
+ popup.setVisible(false);
+
+ break;
+ }
+ }
+ } else if (e.getKeyCode() == KeyEvent.VK_DOWN
+ || e.getKeyCode() == KeyEvent.VK_UP
+ || e.getKeyCode() == KeyEvent.VK_PAGE_UP
+ || e.getKeyCode() == KeyEvent.VK_PAGE_DOWN) {
+ userText = getText();
+
+ showFilteredHistory();
+ }
+ }
+ });
+ }
+
+ private void changeListSelectedIndex(int delta) {
+ int size = list.getModel().getSize();
+ int index = list.getSelectedIndex();
+
+ int newIndex;
+
+ if (index < 0) {
+ newIndex = delta > 0 ? 0 : size - 1;
+ } else {
+ newIndex = index + delta;
+ }
+
+ if (newIndex >= size || newIndex < 0) {
+ newIndex = newIndex < 0 ? 0 : size - 1;
+
+ if (index == newIndex) {
+ newIndex = -1;
+ }
+ }
+
+ if (newIndex < 0) {
+ list.getSelectionModel().clearSelection();
+ list.ensureIndexIsVisible(0);
+
+ setTextWithoutNotification(userText);
+ } else {
+ list.setSelectedIndex(newIndex);
+ list.ensureIndexIsVisible(newIndex);
+
+ setTextWithoutNotification(list.getSelectedValue());
+ }
+ }
+
+ private void setTextWithoutNotification(String text) {
+ notificationDenied = true;
+
+ try {
+ setText(text);
+ } finally {
+ notificationDenied = false;
+ }
+ }
+
+ private void onTextChanged() {
+ if (!notificationDenied) {
+ userText = getText();
+
+ showFilteredHistory();
+ }
+ }
+
+ private void showFilteredHistory() {
+ list.getSelectionModel().clearSelection();
+
+ DefaultListModel<String> model = (DefaultListModel<String>) list.getModel();
+
+ model.clear();
+
+ for (String s : history) {
+ if (s.contains(userText)) {
+ model.addElement(s);
+ }
+ }
+
+ int size = model.size();
+
+ if (size == 0) {
+ popup.setVisible(false);
+ } else {
+ list.setVisibleRowCount(size < MAX_VISIBLE_ROWS ? size : MAX_VISIBLE_ROWS);
+
+ popup.pack();
+
+ if (!popup.isShowing()) {
+ popup.show(JHistoryTextField.this, 0, getHeight());
+ }
+ }
+ }
+
+ public List<String> getHistory() {
+ return Collections.unmodifiableList(history);
+ }
+
+ public void setHistory(List<? extends String> history) {
+ this.history.clear();
+ this.history.addAll(history);
+ }
+}