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xwayland: prevent crash due to unexpected surface dissociate events

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Fixes #1360
Fixes #1466
This commit is contained in:
John Lindgren 2024-01-23 18:22:56 -05:00 • committed by Johan Malm
parent 396a4b93d1
commit 22b02f70e5
2 changed files with 32 additions and 0 deletions
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16
src/xwayland-unmanaged.c
View file

@ -135,6 +135,19 @@ handle_dissociate(struct wl_listener *listener, void *data)
struct xwayland_unmanaged *unmanaged =
wl_container_of(listener, unmanaged, dissociate);
if (!unmanaged->mappable.connected) {
/*
* In some cases wlroots fails to emit the associate event
* due to an early return in xwayland_surface_associate().
* This is arguably a wlroots bug, but nevertheless it
* should not bring down labwc.
*
* TODO: Potentially remove when starting to track
* wlroots 0.18 and it got fixed upstream.
*/
wlr_log(WLR_ERROR, "dissociate received before associate");
return;
}
mappable_disconnect(&unmanaged->mappable);
}
@ -225,6 +238,9 @@ xwayland_unmanaged_create(struct server *server,
CONNECT_SIGNAL(xsurface, unmanaged, request_configure);
CONNECT_SIGNAL(xsurface, unmanaged, set_override_redirect);
if (xsurface->surface) {
handle_associate(&unmanaged->associate, NULL);
}
if (mapped) {
handle_map(&unmanaged->mappable.map, NULL);
}

16
src/xwayland.c
View file

@ -252,6 +252,19 @@ handle_dissociate(struct wl_listener *listener, void *data)
struct xwayland_view *xwayland_view =
wl_container_of(listener, xwayland_view, dissociate);
if (!xwayland_view->base.mappable.connected) {
/*
* In some cases wlroots fails to emit the associate event
* due to an early return in xwayland_surface_associate().
* This is arguably a wlroots bug, but nevertheless it
* should not bring down labwc.
*
* TODO: Potentially remove when starting to track
* wlroots 0.18 and it got fixed upstream.
*/
wlr_log(WLR_ERROR, "dissociate received before associate");
return;
}
mappable_disconnect(&xwayland_view->base.mappable);
}
@ -855,6 +868,9 @@ xwayland_view_create(struct server *server,
wl_list_insert(&view->server->views, &view->link);
if (xsurface->surface) {
handle_associate(&xwayland_view->associate, NULL);
}
if (mapped) {
xwayland_view_map(view);
}