RFR: 8217955: Problems with touch input and JavaFX 11

[Thiago Milczarek Sayao]

On Mon, 5 Apr 2021 22:25:55 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> This PR filters out `GDK_TOUCH_EVENT_MASK` from `GDK_ALL_EVENTS_MASK` to prevent touch events from being used instead of regular mouse events on Linux platforms. Note that the touch events will be delivered as mouse pressed/dragged events.
>> 
>> Since we still compile with GTK 2.x the bit flag (that was introduced in GTK 3.4) needs to be defined.
>> 
>> This PR has been tested on Ubuntu 20.04 with a touch enabled display.
>
> @pankaj-bansal It looks OK to me, but can you also take a look at this?

If anyone would implement touch events, the change would need to be rolled back?

If you catch and consume touch events, would it also work?

I don't own a touch device and `GTK_DEBUG=touchscreen` seems to work only with gtk signals (not gdk events).

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PR: https://git.openjdk.java.net/jfx/pull/457