Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8147840

The AeroSnap state of a is lost by minimizing with frame.setExtendedState()

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 8u66, 9
    • Fix Version/s: 9
    • Component/s: client-libs
    • Labels:

      Description

      FULL PRODUCT VERSION :
      java version "1.8.0_66"
      Java(TM) SE Runtime Environment (build 1.8.0_66-b18)
      Java HotSpot(TM) 64-Bit Server VM (build 25.66-b18, mixed mode)

      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows [Version 6.1.7601]

      A DESCRIPTION OF THE PROBLEM :
      If a frame which was snapped to left (or right) edge of the Screen is minimized by calling setExtendedState() it loses it's "snapped-state".
      The Windows-Taskbar preview shows the before-snapped position and size. If the frame is unminimized it will be restored at this wrong location.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      1. Start "AeroSnapAndMinimize.java".
      2. Move the frame to the left edge of the screen to aero-snap it.
      3. Click the JButton labeled "Minimize".
      4. Hover above the program-symbol in the taskbar to see the wrong preview.
      5. Click the program-symbol in the taskbar to show the frame at the old, wrong position (and with the old size).

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      The frame should be restored correctly snapped. And when dragged away from the edge the old (before snap) size should be restored.
      ACTUAL -
      The frame gets restored at the old (before snap) position and with the old size.

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      package frame.state;

      import java.awt.FlowLayout;
      import java.awt.Frame;

      import javax.swing.JButton;
      import javax.swing.JFrame;
      import javax.swing.SwingUtilities;

      public class AeroSnapAndMinimize extends JFrame
      {

        public AeroSnapAndMinimize( final String title )
        {
          super( title );
          initUI();
        }

        private void initUI()
        {
          setDefaultCloseOperation( EXIT_ON_CLOSE );
          setLayout( new FlowLayout() );
          final JButton minimize = new JButton( "Minimize" );
          add( minimize );
          pack();

          minimize.addActionListener( e ->
          {
            setExtendedState( getExtendedState() | Frame.ICONIFIED );
          } );
        }

        public static void main( final String[] args )
        {
          SwingUtilities.invokeLater( () -> new AeroSnapAndMinimize( "AeroSnap and minimize" ).setVisible( true ) );
        }
      }
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      Three Workarounds are possible:

      1. Remember the position and size and restore it when the frame is unminimized. Result: a wrong preview position and size.

      2. setVisible(false) before and setVisible(true) after minimizing. Result: no preview-content for the frame.

      3. Use a native (JNA) windows-call "User32.INSTANCE.CloseWindow( windowHandle )". Result: works as expected.

      See StackOverflow (http://stackoverflow.com/questions/34638183/is-this-the-only-way-to-teach-a-java-frame-something-about-the-aero-snap-feature) for more Information.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                ssadetsky Semyon Sadetsky (Inactive)
                Reporter:
                webbuggrp Webbug Group
              • Votes:
                0 Vote for this issue
                Watchers:
                4 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: