[Rev 01] RFR: 8244647: Wrong first layout pass of Scrollbar controls on touch supported devices

[Ajit Ghaisas]

On Wed, 13 May 2020 09:38:23 GMT, Jose Pereda <jpereda at openjdk.org> wrote:

>> There is a visual glitch when the scrollbar controls are laid out on touch enabled devices.
>> 
>> The first time they are laid out in the wrong location (20 px from right or bottom), while the next passes are correct
>> (8 px from right or bottom).
>> The reason for this glitch is the use of `getWidth()` or `getHeight()` in the `resizeRelocate` calls to relocate the
>> bars before the controls have been properly resized yet: The initial w/h values are set to the default (20 px / 100
>> px), while the pref values are correctly set to 8 px.  This PR fixes that, by using the same prefWidth/prefHeight for
>> both resizing and relocating.
>> It has been tested on Mac OS and Linux (with `-Dcom.sun.javafx.touch=true`), and on Android and iOS.
>
> Jose Pereda has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Apply code formatting

Marked as reviewed by aghaisas (Reviewer).

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PR: https://git.openjdk.java.net/jfx/pull/215