| /* |
| * Copyright 2008 Google Inc. |
| * |
| * 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.google.gwt.dev.shell; |
| |
| import java.awt.Dimension; |
| import java.awt.FlowLayout; |
| import java.awt.event.ActionEvent; |
| import java.awt.event.ActionListener; |
| |
| import javax.swing.ImageIcon; |
| import javax.swing.JButton; |
| import javax.swing.JPanel; |
| |
| /** |
| * Represents a close button, shrink-wrapped to exactly fit the size of the |
| * close icon. |
| */ |
| public class CloseButton extends JPanel { |
| |
| /** |
| * Callback interface for clicking on the close button. |
| */ |
| public interface Callback { |
| |
| /** |
| * Called when the close button is clicked. |
| */ |
| void onCloseRequest(); |
| } |
| |
| private Callback callback; |
| |
| /** |
| * Create a close button. |
| * |
| * @param toolTipText text to use for tooltip if non-null |
| */ |
| public CloseButton(String toolTipText) { |
| super(new FlowLayout(FlowLayout.LEFT, 0, 0)); |
| setOpaque(false); |
| ImageIcon closeIcon = Icons.getClose(); |
| JButton button = new JButton(closeIcon); |
| button.setBorderPainted(false); |
| button.setPreferredSize(new Dimension(closeIcon.getIconWidth(), |
| closeIcon.getIconHeight())); |
| if (toolTipText != null) { |
| button.setToolTipText(toolTipText); |
| } |
| add(button); |
| button.addActionListener(new ActionListener() { |
| @Override |
| public void actionPerformed(ActionEvent e) { |
| if (callback != null) { |
| callback.onCloseRequest(); |
| } |
| } |
| }); |
| } |
| |
| /** |
| * Set the callback for when this button is clicked. |
| * |
| * @param callback |
| */ |
| public void setCallback(Callback callback) { |
| this.callback = callback; |
| } |
| } |