<AWT Dev> [9] Review request for 8065739 [macosx] Frame warps to lower left of screen when displayed

Alexander Scherbatiy alexandr.scherbatiy at oracle.com
Thu Apr 9 13:12:43 UTC 2015

   I have updated the fix a little bit:
    - maximized sizes are set when window is created if frame state is 

   However there is a problem with the case:
   Frame frame = new Frame();
   The frame with maximized sizes is created, the frame state is 
isZoomed() is false and the frame state
   is set to NORMAL in the checkZoom(). The 
LWCToolkit.flushNativeSelectors() before isMaximized() does not help.
   So I preserved the isVisible() check in the checkZoom() for this 
particular case.


On 4/8/2015 5:54 PM, Alexander Scherbatiy wrote:
> Hello,
> Could you review the fix:
>   bug: https://bugs.openjdk.java.net/browse/JDK-8065739
>   webrev: http://cr.openjdk.java.net/~alexsch/8065739/webrev.00
>   Use case:
>   ------------
>   Frame frame = new Frame();
>   frame.pack();
>   frame.setBounds(screenBounds);
>   frame.setVisible(true);
>   ------------
>   The frame is in the normal state but Mac OS X treats a frame with 
> screen bounds as zoomed.
>   The setVisible() method calls unmaximize() method to return the 
> zoomed window to the normal state.
>   The native zoom() method sets the initial sizes for the window which 
> are zero because of the pack() call.
>   There is already checkZoom() method which synchronizes native window 
> zoom state and and the frame extended state when a frame is resized by 
> mouse.
>   However it can't be always used for the synchronization between 
> native window zoom state and setBounds() call because of the following 
> case:
>   -----------------
>   Frame frame = new Frame();
>   frame.setBounds(smallBounds);
>   frame.setExtendedState(Frame.MAXIMIZED_BOTH);
>   frame.setVisible(true);
>   -----------------
>   This is the valid scenario where the frame should be maximized.
>   The solution synchronizes the zoom and the frame state only when the 
> native window is zoomed.
>   In opposite case we need to return from the zoomed sizes to previous 
> sizes which are the same as for the zoomed window.
> Thanks,
> Alexandr.

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