From ae77fdfc8e57e612e8aa0e9b45bbea478a82c30b Mon Sep 17 00:00:00 2001 From: Gabriele Mazzotta Date: Sun, 27 Jul 2014 12:58:18 +0200 Subject: [PATCH] Prevent two-finger taps from being ignored When two fingers are used, the coordinates of only one of them is taken into account. This can lead to sudden variations of the absolute coordinates when two-fingers taps are performed if the finger considered changes. Take into account coordinates variations to prevent unwanted taps only if the number of fingers doesn't change. Reviewed-by: Peter Hutterer Signed-off-by: Peter Hutterer (cherry picked from commit 7d0ff39519e4d3760722b914883bee276035061c) --- src/synaptics.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/synaptics.c b/src/synaptics.c index b25c902..b49957c 100644 --- a/src/synaptics.c +++ b/src/synaptics.c @@ -1960,8 +1960,9 @@ HandleTapProcessing(SynapticsPrivate * priv, struct SynapticsHwState *hw, (priv->tap_max_fingers <= ((priv->horiz_scroll_twofinger_on || priv->vert_scroll_twofinger_on) ? 2 : 1)) && - ((abs(hw->x - priv->touch_on.x) >= para->tap_move) || - (abs(hw->y - priv->touch_on.y) >= para->tap_move))); + (priv->prevFingers == hw->numFingers && + ((abs(hw->x - priv->touch_on.x) >= para->tap_move) || + (abs(hw->y - priv->touch_on.y) >= para->tap_move)))); press = (hw->left || hw->right || hw->middle); if (touch) {