Name: bsC130419 Date: 06/25/2001


java version "1.4.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b65)
Java HotSpot(TM) Client VM (build 1.4.0-beta-b65, mixed mode)



In previous release of the jdk, doing a selectAll on a JTextField when it
gained focus with a mouse, was possible and the text remained selected.

In the jdk 1.4 beta0 version, an extraneous caret event when the mouse is
released repositions the caret and the selection is unmade.

Example:
Run the example program.
Click with the mouse on the second field.

Event history;
field 2: mouse pressed
field 2: selected all
field 2: dot=12,mark=0
field 2: mouse released
field 2: dot=8,mark=8

In the jdk 1.3.1 version the this last extraneous caret event doesn't happen
and the text remains selected.

If the wait between the mouse down and mouse up events is large, the original
selectAll caret event is discarded and only the extraneous event happens
(coalescing events?).

Example program:

/* TestBug3.java */

import java.awt.Component;
import java.awt.FlowLayout;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.event.CaretEvent;
import javax.swing.event.CaretListener;


public class TestBug3 extends JFrame {

public TestBug3() {

JTextField field1 = new JTextField("Text field 1");
field1.setName("field 1");
field1.addFocusListener(new TextFieldFocusListener());
field1.addMouseListener(new TextFieldMouseListener());
field1.addCaretListener(new TextFieldCaretListener());

JTextField field2 = new JTextField("Text field 2");
field2.setName("field 2");
field2.addFocusListener(new TextFieldFocusListener());
field2.addMouseListener(new TextFieldMouseListener());
field2.addCaretListener(new TextFieldCaretListener());

getContentPane().setLayout(new FlowLayout());
getContentPane().add(field1);
getContentPane().add(field2);

}

private class TextFieldFocusListener extends FocusAdapter {

public void focusGained(FocusEvent event) {
JTextField field = (JTextField) event.getComponent();
System.out.println(field.getName() + ": selected all");
field.selectAll();
}
}

private class TextFieldMouseListener extends MouseAdapter {

public void mousePressed(MouseEvent e) {
System.out.println(e.getComponent().getName() + ":
mouse pressed");
}

public void mouseReleased(MouseEvent e) {
System.out.println(e.getComponent().getName() + ":
mouse released");
}
}

private class TextFieldCaretListener implements CaretListener {

public void caretUpdate(CaretEvent e) {
System.out.println(((Component) e.getSource()).getName
() + ": " + e);
}
}

public static void main(String[] args) {
TestBug3 test4 = new TestBug3();
test4.setDefaultCloseOperation(EXIT_ON_CLOSE);
test4.pack();
test4.setLocation(100, 50);
test4.setVisible(true);
}
}
(Review ID: 127248)
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