RFR: 8209788: Left/Right/Ctrl+A keys not working in editor of ComboBox if popup showing [v7]

[Kevin Rushforth]

On Wed, 26 Aug 2020 12:03:26 GMT, Jeanette Winzenburg <fastegal at openjdk.org> wrote:

>> Ambarish Rapte has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Corrections in test
>
> looks good :)

The fix looks good for an editable ComboBox.

If the ComboBox is not editable, it will have the effect of making the HOME and END keys no-ops, which is a (possibly
unwanted) change in behavior. I checked a couple native Windows apps and they have the behavior I would expect: the
arrow keys, and the HOME / END keys navigate the text field for editable combo boxes. HOME and END go to the beginning
or end of the list for non-editable combo boxes.

While we could treat that as a follow-up issue, it would be worth thinking about whether we could limit the change to
editable combo boxes.

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PR: https://git.openjdk.java.net/jfx/pull/172