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  1. JDK
  2. JDK-4425334

Unable to drag from JList, if mouse btn not released till it's dropped on target

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    • Icon: Bug Bug
    • Resolution: Not an Issue
    • Icon: P2 P2
    • None
    • 1.4.0
    • client-libs

      Unable to drag and drop a selected item from JList, if mouse button is not released till it's dropped on the target.

      % java -version
      java version "1.4.0-beta"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta-b55)
      Java HotSpot(TM) Client VM (build 1.4beta-B55, mixed mode)

      Sample testcase code :

      import javax.swing.*;
      import javax.swing.plaf.basic.*;

      import java.awt.*;
      import java.awt.event.*;
      import java.util.*;

      public class BugWithDnDSwing extends JFrame {

      JPanel panel;

      private JTextField tfSource;
      private JTextField tfDest;

      private JList listSource;
      private JList listDest;

      public BugWithDnDSwing() {
      super("BugWithDnDSwing");
      setSize(400,400);
      panel = new JPanel();
      panel.setLayout( null );

      tfDest = new JTextField();
      tfDest.setBounds(150,40,100,20);
      panel.add(tfDest);

      String[] data = {"one", "two", "three", "four"};
      listSource = new JList(data);
      listSource.setBounds(10,40,100,60);
      listSource.setDragEnabled(true);
      panel.add(listSource);

      panel.setVisible(true);
      getContentPane().add(panel);
      setVisible(true);

      addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent ae) {
      System.exit(0);
      }
      });
      }

      public static void main(String[] args) {
      new BugWithDnDSwing();
      }
      }

      To reproduce :

      1) Compile the above code and execute it.
      2) Press LEFT mouse button on a non-selected item of JList.
      3) Start dragging without releasing the mouse button.

      You will see that nothing gets dragged.

      NOTE : This is reproducible on all platforms.

            tprinzing Tim Prinzing (Inactive)
            duke J. Duke
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              Created:
              Updated:
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