On Sat, 21 Oct 2023 00:10:50 GMT, Martin Fox <d...@openjdk.org> wrote:

>> When a window is visible the maximized, iconified, and fullscreen properties 
>> are two-way streets; changes made in Java are sent on to the platform window 
>> and changes in the platform window are sent back into Java.
>> 
>> When a window is hidden these properties (and others, like location and 
>> sizing information) are not sent on to the platform window until the window 
>> is made visible. In other words, the properties don't reflect the actual 
>> state of the window but the intended state after it's shown.
>> 
>> There's a period when the window is transitioning from hidden to shown where 
>> the core Stage code is using the stored properties to configure the platform 
>> window and the platform window is simultaneously calling back in to update 
>> the properties. This was causing the intended state to be wiped out before 
>> it could be sent on to the platform window.
>> 
>> The problem is specific to Mac because on that platform any change to the 
>> size or location of a window can cause it to enter or leave the maximized 
>> (zoomed) state. So just setting the location can cause the maximized flag to 
>> be altered.
>> 
>> The proposed solution is to copy the intended state bits to Stage local 
>> variables to be used later in the configuration.
>
> Martin Fox has updated the pull request incrementally with one additional 
> commit since the last revision:
> 
>   Revert core changes. Fix Mac glass code so it reports maximized state 
> correctly.

Fix is now localized to the Mac. When an NSView is being initialized the 
`isZoomed` call returned bogus results. New code checks to see if the view's 
screen is set. For undecorated windows the OS assumed the zoomed size should be 
the same as the unzoomed size, not the size of the screen. This could also lead 
`isZoomed` to return surprising results.

-------------

PR Comment: https://git.openjdk.org/jfx/pull/1258#issuecomment-1773546930

Reply via email to