<AWT Dev> <AWT dev>[12] Review request for JDK-8206392: [macosx] Cycling through windows (JFrames) does not work with keyboard shortcut
Manajit Halder
manajit.halder at oracle.com
Tue Sep 4 17:54:14 UTC 2018
Hi Dmitry,
Thanks for your reply. Please see my reply inline.
Thanks,
Manajit
On 01/09/18 12:02 AM, Dmitry Markov wrote:
> Hi Manajit,
>
> The current implementation assumes that orderAboveSiblings() places
> the window in front of other windows located at the same level. The
> proposed fix introduces new behaviour: if the window does not have an
> owner and child windows it won’t be ordered, (i.e. in certain
> conditions the window may be obscured by other windows even after
> orderAboveSibling() execution). Most likely such approach will break
> existed functionality - some windows will be incorrectly placed behind
> other windows.
If I am not wrong windows (other than Window.Type.POPUP) are
already ordered in setVisible method at line no 632 while creation.
While debugging I observed that orderFront is called twice when the
window is displayed for the first time (in method setVisible and in
method orderAboveSiblings). Now when Key press COMMAND + ` is pressed
the current window receives windowDidBecomeMain notification and which
calls orderFront and also COMMAND + ` tries to order the window above.
Two time ordering the window when COMMAND + ` is pressed is causing
problem in case of multiple windows.
>
> I am sorry, but the relationship between the original problem
> described in the bug, (i.e. cycling through windows issue) and
> implementation of orderAboveSiblings() is NOT clear. Can you explain this?
This issue is a regression of JDK-8169589 introduced in JDK release
8u131. 8169589 introduced new window ordering model and which has
introduced the cycling through window issue.
>
> Thanks,
> Dmitry
>
>> On 31 Aug 2018, at 07:55, Manajit Halder <manajit.halder at oracle.com
>> <mailto:manajit.halder at oracle.com>> wrote:
>>
>> Hi All,
>>
>> Please review the fix for JDK12.
>>
>>
Bug:
>> https://bugs.openjdk.java.net/browse/JDK-8206392
>>
>> <https://bugs.openjdk.java.net/browse/JDK-8206392>
Webrev:
>> http://cr.openjdk.java.net/~mhalder/8206392/webrev.00/
>> <http://cr.openjdk.java.net/%7Emhalder/8206392/webrev.00/>
>>
>> Fix:
>> Window ordering is not required if the window doesn't own any
>> other windows.
>>
>> Regards,
>> Manajit
>
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