[Wayland-bugs] [Bug 90928] Allow tap-to-drag to be disabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90928

            Bug ID: 90928
           Summary: Allow tap-to-drag to be disabled
           Product: Wayland
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: medium
         Component: libinput
          Assignee: wayland-bugs at lists.freedesktop.org
          Reporter: liam at fightingcrane.com

Tap to drag is helpful for small trackpads and/or people with slow mouse
speeds. When those things don't hold it can be difficult to work with. This
ranges from inconvenient (highlighting text and then right clicking only to
find that subsequent mouse movement has changed what was highlighted) to nearly
impossible to use (in mouse-heavy apps like Inkscape).

To illustrate, a common use case in Inkscape is to draw bezier curves. The
workflow for drawing a curve is to click to set a control point, and drag to
set the handles for the curve. This workflow has to be repeated for each
control point in the curve—not even considering having to go back and edit the
control points which requires more clicking and dragging. Even a relatively
simple curve could have 10+ points. With a mouse, this is two motions per
control point, but on a touchpad with tap-to-drag enabled, this doubles to 4
motions per control point, assuming you don't want to wait for each one to time
out which is a fairly safe assumption. These extra motions add up to make an
otherwise simple workflow awkward and frustrating.

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