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8295774: Write a test to verify List sends ItemEvent/ActionEvent
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test/jdk/java/awt/event/ComponentEvent/ListItemEventsTest.java
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/* | ||
* Copyright (c) 2022, 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. | ||
*/ | ||
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import java.awt.Dimension; | ||
import java.awt.EventQueue; | ||
import java.awt.FlowLayout; | ||
import java.awt.Frame; | ||
import java.awt.List; | ||
import java.awt.Point; | ||
import java.awt.Robot; | ||
import java.awt.event.InputEvent; | ||
import java.awt.event.KeyEvent; | ||
import java.awt.event.MouseEvent; | ||
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/* | ||
* @test | ||
* @key headful | ||
* @bug 8295774 | ||
* @summary Verify that List Item selection via mouse/keys generates ItemEvent/ActionEvent appropriately. | ||
* @run main ListItemEventsTest | ||
*/ | ||
public class ListItemEventsTest { | ||
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private static final int MOUSE_DELAY = 100; | ||
private static final int KEYBOARD_DELAY = 1000; | ||
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private static Frame frame; | ||
private volatile static List list; | ||
private volatile static boolean actionPerformed = false; | ||
private volatile static boolean itemStateChanged = false; | ||
private static Robot robot; | ||
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public static void initializeGUI() { | ||
frame = new Frame("Test Frame"); | ||
frame.setLayout(new FlowLayout()); | ||
list = new List(); | ||
list.add("One"); | ||
list.add("Two"); | ||
list.add("Three"); | ||
list.add("Four"); | ||
list.add("Five"); | ||
list.addItemListener((event) -> { | ||
System.out.println("Got an ItemEvent: " + event); | ||
itemStateChanged = true; | ||
}); | ||
list.addActionListener((event) -> { | ||
System.out.println("Got an ActionEvent: " + event); | ||
actionPerformed = true; | ||
}); | ||
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frame.add(list); | ||
frame.pack(); | ||
frame.setLocationRelativeTo(null); | ||
frame.setVisible(true); | ||
} | ||
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public static void main(String[] s) throws Exception { | ||
robot = new Robot(); | ||
try { | ||
robot.setAutoDelay(MOUSE_DELAY); | ||
robot.setAutoWaitForIdle(true); | ||
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EventQueue.invokeLater(ListItemEventsTest::initializeGUI); | ||
robot.waitForIdle(); | ||
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Point listAt = list.getLocationOnScreen(); | ||
Dimension listSize = list.getSize(); | ||
robot.mouseMove(listAt.x + listSize.width / 2, | ||
listAt.y + listSize.height / 2); | ||
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robot.mousePress(InputEvent.BUTTON1_DOWN_MASK); | ||
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK); | ||
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if (!itemStateChanged) { | ||
throw new RuntimeException( | ||
"FAIL: List did not trigger ItemEvent when item selected!"); | ||
} | ||
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robot.mousePress(MouseEvent.BUTTON1_DOWN_MASK); | ||
robot.mouseRelease(MouseEvent.BUTTON1_DOWN_MASK); | ||
robot.mousePress(MouseEvent.BUTTON1_DOWN_MASK); | ||
robot.mouseRelease(MouseEvent.BUTTON1_DOWN_MASK); | ||
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if (!actionPerformed) { | ||
throw new RuntimeException( | ||
"FAIL: List did not trigger ActionEvent when double" | ||
+ " clicked!"); | ||
} | ||
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itemStateChanged = false; | ||
actionPerformed = false; | ||
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EventQueue.invokeAndWait(() -> list.select(0)); | ||
robot.waitForIdle(); | ||
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if (itemStateChanged) { | ||
throw new RuntimeException( | ||
"FAIL: List triggered ItemEvent when item selected by " | ||
+ "calling the API!"); | ||
} | ||
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robot.setAutoDelay(KEYBOARD_DELAY); | ||
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itemStateChanged = false; | ||
typeKey(KeyEvent.VK_DOWN); | ||
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if (!itemStateChanged) { | ||
throw new RuntimeException( | ||
"FAIL: List did not trigger ItemEvent when item selected by" | ||
+ " down arrow key!"); | ||
} | ||
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itemStateChanged = false; | ||
typeKey(KeyEvent.VK_UP); | ||
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if (!itemStateChanged) { | ||
throw new RuntimeException( | ||
"FAIL: List did not trigger ItemEvent when item selected by" | ||
+ " up arrow key!"); | ||
} | ||
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if (actionPerformed) { | ||
throw new RuntimeException( | ||
"FAIL: List triggerd ActionEvent unnecessarily. Action generated" | ||
+ " when item selected using API or UP/DOWN keys!"); | ||
} | ||
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actionPerformed = false; | ||
typeKey(KeyEvent.VK_ENTER); | ||
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if (!actionPerformed) { | ||
throw new RuntimeException( | ||
"FAIL: List did not trigger ActionEvent when enter" | ||
+ " key typed!"); | ||
} | ||
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System.out.println("Test passed!"); | ||
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} finally { | ||
EventQueue.invokeAndWait(ListItemEventsTest::disposeFrame); | ||
} | ||
} | ||
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public static void disposeFrame() { | ||
if (frame != null) { | ||
frame.dispose(); | ||
frame = null; | ||
} | ||
} | ||
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private static void typeKey(int key) throws Exception { | ||
robot.keyPress(key); | ||
robot.keyRelease(key); | ||
} | ||
} |
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