desktop-shell: Do not try to add a child to a non-existent parent

Introduced with a8da2084, it seems that there are cases when there's no
parent available (zenity, for instance).

Removes any potential child and re-initialize it, in case the parent is
not set. (Simon Ser)

Fixes: #340

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Reviewed-by: Simon Ser <contact@emersion.fr>
Reported-by: n3rdopolis <bluescreenavenger@gmail.com>
dev
Marius Vlad 5 years ago
parent c3c0b247a0
commit a27658e981
  1. 15
      desktop-shell/shell.c

@ -2769,13 +2769,20 @@ desktop_surface_set_parent(struct weston_desktop_surface *desktop_surface,
struct weston_desktop_surface *parent, struct weston_desktop_surface *parent,
void *shell) void *shell)
{ {
struct shell_surface *shsurf_parent;
struct shell_surface *shsurf = struct shell_surface *shsurf =
weston_desktop_surface_get_user_data(desktop_surface); weston_desktop_surface_get_user_data(desktop_surface);
struct shell_surface *shsurf_parent =
weston_desktop_surface_get_user_data(parent);
wl_list_insert(shsurf_parent->children_list.prev, /* unlink any potential child */
&shsurf->children_link); wl_list_remove(&shsurf->children_link);
if (parent) {
shsurf_parent = weston_desktop_surface_get_user_data(parent);
wl_list_insert(shsurf_parent->children_list.prev,
&shsurf->children_link);
} else {
wl_list_init(&shsurf->children_link);
}
} }
static void static void

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