desktop-shell: Don't crash on zoom without a pointer in the seat

The zoom effect zooms at the seat's current pointer location.  When no
pointer is present the zoom key bindings cause a crash.

Instead, check for the absence of a pointer and log a warning.

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Derek Foreman 2015-01-06 14:28:13 -06:00 committed by Bryce Harrington
parent 8771a14ff3
commit 7ef3bed03c

View File

@ -4671,6 +4671,11 @@ do_zoom(struct weston_seat *seat, uint32_t time, uint32_t key, uint32_t axis,
struct weston_output *output;
float increment;
if (!seat->pointer) {
weston_log("Zoom hotkey pressed but seat '%s' contains no pointer.\n", seat->seat_name);
return;
}
wl_list_for_each(output, &compositor->output_list, link) {
if (pixman_region32_contains_point(&output->region,
wl_fixed_to_double(seat->pointer->x),