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Keep cumulative coordinates values in sync with absolute ones.

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This improve "two-finger scrolling" on synaptics and will allow to
have proper "click-and-drag" support on elantech.

Note that this change is needed because wsmouse(4)/wscons(4) do not
support multitouch events for the moment and every protocol supported
by pms(4) do its own translation to fake such events.

From Ulf Brosziewski, ok shadchin@
This commit is contained in:
mpi 2015-02-09 03:31:31 +00:00
parent bf5b4f6dc6
commit 874cd889c2
1 changed files with 6 additions and 6 deletions
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12
driver/xf86-input-synaptics/src/wsconscomm.c
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@ -132,12 +132,6 @@ WSConsReadHwState(InputInfoPtr pInfo,
struct wscons_event event;
Bool v;
/* Reset cumulative values if buttons were not previously pressed */
if (!hw->left && !hw->right && !hw->middle) {
hw->cumulative_dx = hw->x;
hw->cumulative_dy = hw->y;
}
while (WSConsReadEvent(pInfo, &event)) {
switch (event.type) {
case WSCONS_EVENT_MOUSE_UP:
@ -187,9 +181,11 @@ WSConsReadHwState(InputInfoPtr pInfo,
break;
case WSCONS_EVENT_MOUSE_ABSOLUTE_X:
hw->x = event.value;
hw->cumulative_dx = hw->x;
break;
case WSCONS_EVENT_MOUSE_ABSOLUTE_Y:
hw->y = priv->maxy - event.value + priv->miny;
hw->cumulative_dy = hw->y;
break;
case WSCONS_EVENT_MOUSE_ABSOLUTE_Z:
hw->z = event.value;
@ -218,6 +214,10 @@ WSConsReadHwState(InputInfoPtr pInfo,
}
break;
case WSCONS_EVENT_SYNC:
if (hw->z == 0) {
hw->fingerWidth = 0;
hw->numFingers = 0;
}
hw->millis = 1000 * event.time.tv_sec + event.time.tv_nsec / 1000000;
SynapticsCopyHwState(hwRet, hw);
return TRUE;