On Tue, 21 Sep 2021 22:49:04 GMT, Phil Race <[email protected]> wrote:

>> src/java.desktop/macosx/native/libawt_lwawt/awt/AWTWindow.m line 659:
>> 
>>> 657:     if (![self.nsWindow inLiveResize]) {
>>> 658:         [AWTWindow synthesizeMouseEnteredExitedEventsForAllWindows];
>>> 659:     }
>> 
>> Are you sure that inLiveResize is only set when the user resizes the window? 
>> What happens if the user will move the window to the fullscreen or maximize 
>> it(by clicking on the title/buttons), will the inLiveResize be set to true 
>> or not?
>
> The docs seem to me to be saying it is only when the user is dragging :
> https://developer.apple.com/documentation/appkit/nsview/1483267-inliveresize?language=objc

When the user maximizes the window a mouseEntered event does fire, so it 
preserves the fix for JDK-8028485. But I noticed another problem is that a 
mouseEntered event will be generated if the window is dragged around (without 
resizing or entering the actual window). This could cause a situation where you 
can drag a window around to create a mouseEntered event, move the mouse away 
from the window, and re-enter the window without generating a mouseEntered 
event.

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

PR: https://git.openjdk.java.net/jdk/pull/5497

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