double-tap and hold touchpad behavior

[Brandon Casey]

On Mon, Aug 22, 2011 at 11:42 PM, Peter Hutterer
<peter.hutterer at who-t.net>wrote:

> On Mon, Aug 22, 2011 at 11:24:38PM -0500, Brandon Casey wrote:
> > On Fri, Aug 19, 2011 at 1:15 AM, Peter Hutterer <
> peter.hutterer at who-t.net>wrote:
> >
> > > On Wed, Aug 17, 2011 at 10:16:18PM -0500, Brandon Casey wrote:
> > > > Please let me know if this is the wrong place to post this message.
> > > >
> > > > For a long time now I have been missing the old method that I used to
> use
> > > to
> > > > highlight text, drag-and-drop, and move windows around.  I used to be
> > > able
> > > > to produce a button press-and-hold by performing a double-tap and
> hold
> > > (tap
> > > > twice on touchpad, but leave the finger resting on the touchpad on
> the
> > > > second tap).  But with recent distributions the last few years, that
> > > doesn't
> > > > work.  Now, it seems, you have to double-tap, hold, and drag.
> > > >
> > > > Is there any way to re-enable the old double-tap-and-hold instead of
> the
> > > > double-tap-and-drag?
> > >
> > > this probably doesn't help but I've just tried it here and it worked
> fine.
> > > you can disable it by unsetting the Synaptics Gestures property but it
> is
> > > enabled by default.
> > >
> >
> > So, when you double-tap-and-hold on a window title bar, without moving
> > the mouse after the second tap (i.e. no "drag" gesture), your pointer
> grabs
> > the title bar and the mouse icon changes to indicate that?
>
> tbh, I can't tap without moving, my touchpad is too sensible. it
> always moves by a few pixels at least.


"tbh"?  I don't know what that means.

"sensible"?  Did you mean "sensitive"?  I guess it's possible that your
pointer moves enough after your second tap that the driver interprets it as
a drag?  The setting is called TapAndDragGesture though, so that, along with
the documentation, implies that a "drag" is part of the gesture.


> > Just to make sure you understood me (and I you), when I do the
> > above, nothing happens.  It doesn't even produce an event in xev.
>
> if you're on the window bar, the event never goes to xev, it's captured by
> the WM. try doing it _inside_ the xev window, that should show events.


Yes, sorry, when I was using xev, the pointer was within the xev window.
 Other operations produce the appropriate events.  The dtap-and-drag gesture
produces the button press and release events, intermixed with a bunch of
motion events.


> > The double-tap-and-drag gesture does work, but for that one, you have
> > to drag your finger after the second tap (touch-release-touch-drag).
> >  The Synaptics Gestures property controls this feature.  If I disable it,
> > then it disables double-tap-and-drag, but it doesn't enable
> > double-tap-and-hold.  You then have to use the
> > physical buttons.
>
> I can't remember any changes to this extent going into the driver. maybe
> it's a side-effect of other change but you'd have to look at the state
> machine in the driver where exactly the problem is now.


My description of the behavior I am seeing is exactly what the synaptics man
page describes as how the TapAndDragGesture is supposed to work.  So, it
seems like it is intended behavior.  I just hoped the old tap-and-hold
behavior could be enabled somehow.  And when I say "old", I mean about 5
years ago, which may predate the synaptics driver, I don't know.


> > I would like to enable the tap-and-hold functionality, but I don't know
> > how to get it.  Maybe there is an alternative touchpad driver other than
> > the synaptics one?  If so, how do I disable the synaptics driver and just
> > use the standard one?
>
> there's only one touchpad driver.


:(

> I'm using fedora-15, and fedora 13 before it.  What distribution are
> > you using?
>
> F15, but my X bits are the upstream ones.
>

 Hmm.

Thanks,
-Brandon
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