From: Rob Bradford <[email protected]>
Avoid sending a touch down event using uninitialised surface x/y co-ordinates.
Instead present a log message about this unexpected case.
---
src/compositor.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/compositor.c b/src/compositor.c
index 565212d..b29d697 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -2079,6 +2079,13 @@ 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);
--
1.7.11.7
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