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Disable scrolling when beginning a clickpad press

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There really isn't a point to scrolling while a clickpad is pressed. In
particular, the clickpad button areas and the horizontal edge scrolling
areas overlap, so horizontal edge scrolling must be disabled. Also,
performing two finger scrolling while a third finger presses the button
would require us to inhibit touch events until four touches are present.
That is enough reason to disable two finger scrolling as well.

Signed-off-by: Chase Douglas <chase.douglas@canonical.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Chase Douglas
2012-02-14 14:46:07 -08:00
committed by Peter Hutterer
parent de75ad6b07
commit a6361e2d2c
1 changed files with 6 additions and 0 deletions
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6
src/synaptics.c
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@@ -1877,6 +1877,12 @@ HandleTapProcessing(SynapticsPrivate *priv, struct SynapticsHwState *hw,
}
break;
case TS_CLICKPAD_MOVE:
/* Disable scrolling once a button is pressed on a clickpad */
priv->vert_scroll_edge_on = FALSE;
priv->horiz_scroll_edge_on = FALSE;
priv->vert_scroll_twofinger_on = FALSE;
priv->horiz_scroll_twofinger_on = FALSE;
/* Assume one touch is only for holding the clickpad button down */
if (hw->numFingers > 1)
hw->numFingers--;