RFR: 8228363: ContextMenu.show with side=TOP does not work the first time in the presence of CSS

[Kevin Rushforth]

On Thu, 21 Jan 2021 06:42:19 GMT, Robert Lichtenberger <rlichten at openjdk.org> wrote:

> By using the anchor location facility of PopupWindows we can avoid miscalculation of the
> menu's height entirely.
> This fix also cleans up some documentation issues.
> This fix introduces tests that check the correct positioning (test_position_)
> test_position_withCSS reproduces the problem that is fixed with this patch.
> The other test_position_ cases serve as "proof" that no regressions are introduces.
> They work before and after the fix is introduced.

I saw your comment in #381 regarding the removed section of API docs. We can discuss it as part of the review of this PR. I'll take a look and see whether simply removing it is fine or if I can suggest a replacement. It still might need a CSR (I'll let you know), but it would be a simple one to record the doc changes.

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PR: https://git.openjdk.java.net/jfx/pull/383