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compositor: Avoid sending event for invalid point

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Avoid sending a touch down event using uninitialised surface x/y co-ordinates.
Instead present a log message about this unexpected case.
This commit is contained in:
Rob Bradford 2012-12-05 18:47:05 +00:00 • committed by Kristian Høgsberg
parent ba1e292779
commit 26e009cd9c
1 changed files with 7 additions and 0 deletions
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7
src/compositor.c
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@ -2043,6 +2043,13 @@ notify_touch(struct weston_seat *seat, uint32_t time, int touch_id,
} else if (touch->focus) {
es = (struct weston_surface *) touch->focus;
weston_surface_from_global_fixed(es, x, y, &sx, &sy);
} else {
/* Unexpected condition: We have non-initial touch but
* there is no focused surface.
*/
weston_log("touch event received with %d points down"
"but no surface focused\n", seat->num_tp);
return;
}
grab->interface->down(grab, time, touch_id, sx, sy);