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input: Ignore touch up events if num_tp is 0

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This can happen if we start out with one or more fingers on the touch
screen, in which case we didn't get the corresponding down event.

Closes: https://bugs.freedesktop.org/show_bug.cgi?id=73367
This commit is contained in:
Kristian Høgsberg
2014-01-08 22:29:20 -08:00
parent b2917a2fed
commit a30e29af2e
1 changed files with 8 additions and 0 deletions
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src/input.c
+8
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@@ -1488,6 +1488,14 @@ notify_touch(struct weston_seat *seat, uint32_t time, int touch_id,
grab->interface->motion(grab, time, touch_id, sx, sy); grab->interface->motion(grab, time, touch_id, sx, sy);
break; break;
case WL_TOUCH_UP: case WL_TOUCH_UP:
if (touch->num_tp == 0) {
/* This can happen if we start out with one or
* more fingers on the touch screen, in which
* case we didn't get the corresponding down
* event. */
weston_log("unmatched touch up event\n");
break;
}
weston_compositor_idle_release(ec); weston_compositor_idle_release(ec);
touch->num_tp--; touch->num_tp--;