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desktop-shell: don't crash input-panel if no kbd focus

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If a keyboard exists but it has no current focus, yet something asks the
input-panel to come up, we would crash here. Check that there is a focus
before attempting to use it.

Maybe there should not even exist a case where input-panel tries to come
up without a keyboard focus, but I am not sure there is no race where it
could happen.

In any case, this fix was brought up by the ivi-shell work, where I
suppose you can somehow hit it.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Cc: Tanibata, Nobuhiko <ntanibata@jp.adit-jv.com>
This commit is contained in:
Pekka Paalanen 2014-11-20 10:15:07 +02:00
parent fde9490d7e
commit a4bac9e0e0
1 changed files with 1 additions and 1 deletions
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2
desktop-shell/input-panel.c
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@ -66,7 +66,7 @@ show_input_panel_surface(struct input_panel_surface *ipsurf)
float x, y;
wl_list_for_each(seat, &shell->compositor->seat_list, link) {
if (!seat->keyboard)
if (!seat->keyboard || !seat->keyboard->focus)
continue;
focus = weston_surface_get_main_surface(seat->keyboard->focus);
ipsurf->output = focus->output;