libgrip needs to invert Y-axis scrolling with indirect touch devices
Bug #741236 reported by
Stephen M. Webb
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
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libgrip |
Fix Released
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Undecided
|
Unassigned | ||
libgrip (Ubuntu) |
Fix Released
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Undecided
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Unassigned |
Bug Description
When using libgrip to scroll with drag gestures on an indirect device such as a touchpad, the behaviour is the opposite of what you get when using the scrollbar with a mouse (or a "two-fingers-
Libgrip needs to invert the Y axis for non-direct devices when the gesture focus is to be interpreted as a scroll event.
One proposed alternative solution to this problem is to have libgrip support only gestures from direct-touch devices (eg. touchscreens). The attached patch does that.