RFR: 8178368: Right and Center alignment of text field works incorrectly [v4]

[Kevin Rushforth]

On Fri, 10 Feb 2023 05:39:33 GMT, Karthik P K <kpk at openjdk.org> wrote:

>> When Text width was more than TextField width, the logic to update `textTranslateX` in `updateCaretOff` method was causing the issue of unexpected behavior for Right and Center alignment.
>> 
>> Made changes to update `textTranslateX` in `updateCaretOff` method only when text width is less than text field width i.e `delta` is positive. 
>> For both right and center alignments, the `textTranslateX` value calculated in `updateTextPos` method will be updated without any condition so that expected behavior is achieved for all scenarios of text width relative to text field width. 
>> 
>> Added unit tests to validate LEFT, CENTER and RIGHT alignments. RIGHT and CENTER alignment tests are expected to fail without the fix provided in this PR.
>
> Karthik P K has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:
> 
>  - Merge branch 'openjdk:master' into textfield_issue_fix
>  - Update comments
>  - Fix textfield right and center alignment issues
>  - Fix for TextField right alignement issue

In this case I think we should match the behavior of JTextField and html, where the beginning of the text is always shown. It seems more consistent and less surprising.

The behavior prompt text should match whatever we do for text.

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

PR: https://git.openjdk.org/jfx/pull/980