RFR: 8087980: Add property to disable Monocle cursor

[Kevin Rushforth]

On Tue, 8 Oct 2019 12:03:44 GMT, Dell Green <12861109+dellgreen at users.noreply.github.com> wrote:

> On Tue, 8 Oct 2019 12:03:42 GMT, Dell Green <12861109+dellgreen at users.noreply.github.com> wrote:
> 
>> Often on embedded systems a cursor is not a valid input modality. On some of these systems, when the javafx toolkit initialises the native hardware cursor, it produces artefacts which can be seen on screen (in the framebuffer for example). This change adds a system property "monocle.cursor.enabled" that can disable the creation of a native cursor in each of the Monocle NativePlatform implementations in favour of a NullCursor which is a no-op implementation of the NativeCursor abstract class that all native cursors have to implement.
>> 
>> NullCursor class already existed and was being returned for some implementations like AndroidPlatform and HeadlessPlatform. This change builds upon that and conditionally returns NullCursor for all platforms.
>> 
>> A system property "monocle.debugcursor" has also been added to turn on logging of which NativeCursor has been selected when the toolkit initialises.
>> 
>> ----------------
>> 
>> Commits:
>>  - cfbbc7dd: JDK-8087980: Add property to disable Monocle cursor
>> 
>> Changes: https://git.openjdk.java.net/jfx/pull/5/files
>>  Webrev: https://webrevs.openjdk.java.net/jfx/5/webrev.00
>>   Issue: https://bugs.openjdk.java.net/browse/JDK-8087980
>>   Stats: 49 lines in 8 files changed: 40 ins; 0 del; 9 mod
>>   Patch: https://git.openjdk.java.net/jfx/pull/5.diff
>>   Fetch: git fetch https://git.openjdk.java.net/jfx pull/5/head:pull/5
> 
> JBS issue: https://bugs.openjdk.java.net/browse/JDK-8087980
> 
> /signed
> /covered
> 
> https://www.oracle.com/technetwork/community/oca-486395.html#i
> 
> Ideaworks Ltd. - OpenJDK OpenJFX - dellgreen

Hold on a minute. There is clearly some bug in the Skara tooling, since this change has *not* yet been reviewed, and is therefore *not* ready to integrate.

am going to temporarily change the title in an attempt to force the jcheck bot to run again. I'll change it back once done. Failing this, I will ask the Skara admins to rerun the check if possible. If this doesn't work, we will need to close this PR and have you open a new one.

PR: https://git.openjdk.java.net/jfx/pull/5