On Mon, 11 Dec 2023 19:01:19 GMT, Andy Goryachev <ango...@openjdk.org> wrote:
>> modules/javafx.controls/src/main/java/javafx/scene/control/skin/TabPaneSkin.java
>> line 2162:
>>
>>> 2160: }
>>> 2161: // Stop dropHeaderAnim if direction of drag is changed
>>> 2162: if (dragDirection != 0 && prevDragDirection != dragDirection)
>>> {
>>
>> Did you mean `dragDelta != 0`?
>
> it is sort of equivalent in this case...
> I think this code is correct.
It is the same as using `dragDelta != 0`, since `dragDelta = 0` implies
`dragDirection = 0`.
The if-else expression doesn't provide a value for the case `dragDelta == 0`,
so I've added an initial value 0 to `dragDirection`.
Since `prevDragDirection` initial value is -1, we need to verify that
`dragDirection` is not zero and also `prevDragDirection` is different to
`dragDirection` to detect a change of direction.
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PR Review Comment: https://git.openjdk.org/jfx/pull/1304#discussion_r1423005976
