Comment 6 for bug 1725384

Using xinput, I captured touch events on the dock's Applications Grid Button. For comparison, I captured touch events on another portion of the screen, away from the dock.

The results are very interesting...

When I click on the Applications Grid Button on the dock, five (!!) Touch events are registered. These five events are enclosed by only one Touch Begin event and one corresponding Touch End event.

However, when I click on another portion of the screen, only one Touch events is registered, enclosed by one Touch Begin event and one corresponding Touch End event. This is how the dock should behave.

Please see the attached files.
I've inserted comments in the output to make it easy to count the events:

Touch_Events_For_Dock_2017-11-08-01-PS.txt

# (A) TOUCH BEGIN
# (B) - TOUCH #1
# (C) - TOUCH #2
# (D) - TOUCH #3
# (E) - TOUCH #4
# (F) - TOUCH #5
# (G) TOUCH END

Touch_Events_For_Screen_2017-11-08-01-PS.txt

# (A) TOUCH BEGIN
# (B) - TOUCH #1
# (C) TOUCH END

Description: Ubuntu 17.10
Release: 17.10
Codename: artful

Package: gnome-shell-extension-ubuntu-dock
Version: 0.7.1