RFR: 8284654: Modal behavior returns to wrong stage [v2]

[Thiago Milczarek Sayao]

> When there's an APPLICATION_MODAL window, all other windows are disabled and re-enabled when the APPLICATION_MODAL window closes. This causes `requestToFront()` to be called on every window, and it does not guarantee order.
> 
> The fix also works for:
> https://bugs.openjdk.java.net/browse/JDK-8269429
> 
> But this one might need another fix:
> https://bugs.openjdk.java.net/browse/JDK-8240640

Thiago Milczarek Sayao has updated the pull request incrementally with one additional commit since the last revision:

  Set the focus on the latest window when re-enabling them

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

Changes:
  - all: https://git.openjdk.java.net/jfx/pull/784/files
  - new: https://git.openjdk.java.net/jfx/pull/784/files/72317b21..b024de58

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jfx&pr=784&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jfx&pr=784&range=00-01

  Stats: 8 lines in 2 files changed: 8 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jfx/pull/784.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx pull/784/head:pull/784

PR: https://git.openjdk.java.net/jfx/pull/784