You can apply the attached patch to xserver-xorg-input-
evdev-2.9.2-1ubuntu1 source.
I have tested it on one touchscreen only.
my device : ID 0457:1026 Silicon Integrated Systems Corp
It is globally disabled by default, use xinput. You can also disable
each of the following features separately :
right click emulation with touch and hold followed by release.
middle click emulation with touch and hold followed by tap with a
second finger, the click happens at the first touch or at the second
one if inverted, you can set it with xinput.
wheel clicks in 4 directions with touch and hold then move.
For the visual signal I kept it simple and painted it directly from
evdev on top of everything, this is probably wrong in a way but there
isn't much of a choice as far as I know. Desktop compatibility might be
an issue.
It preserves Unity multitouch gestures.
** Attachment added: "patch-evdev-emuTS"
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1212736/+attachment/4607907/+files/patch-evdev-emuTS
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https://bugs.launchpad.net/bugs/1212736
Title:
Touch screen: Right click should be emulated by long press, like under
Windows 8 and Android
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