1770421 - Always lock to an axis in dominant axis mode

Status: RESOLVED DUPLICATE of bug 1773378

(Core :: Panning and Zooming, defect, P3)

Description

[Dan Robertson (:dlrobertson)]

With both apz.axis_lock.breakout_angle and apz.axis_lock.lock_angle both set to M_PI / 4, we can get gestures with an exactly 45 degree angle and enter a PANNING state. We should always bind to an axis on mac.

Steps to reproduce:

• Set both apz.axis_lock.breakout_angle and apz.axis_lock.lock_angle to M_PI / 4
• Navigate to a a page that can scroll both on the horizontal and vertical axis
• Input several 45 degree gestures

Expected results:

An axis is chosen and we scroll on only one axis

Actual results:

On occasion the angle is exactly 45 degrees and we scroll on both axes

Comment 1

[Dan Robertson (:dlrobertson)]

bug 1713403

Comment 2

[Markus Stange [:mstange]]

Even for scroll gestures which start axis locked, it's pretty easy to unlock in the middle of the gesture by scrolling diagonally.

Comment 3

[Dan Robertson (:dlrobertson)]

Fixed by bug 1773378