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data-device: reset focused surface when destroyed

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The surface may be destroyed before the struct wlr_seat_client.

Spotted by Consolatis.
This commit is contained in:
Simon Ser 2024-12-06 16:42:26 +01:00 • committed by Alexander Orzechowski
parent a7ebe7c026
commit 71943b3b1e
2 changed files with 18 additions and 1 deletions
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1
include/wlr/types/wlr_data_device.h
View file

@ -135,6 +135,7 @@ struct wlr_drag {
struct {
struct wl_listener source_destroy;
struct wl_listener seat_client_destroy;
struct wl_listener focus_destroy;
struct wl_listener icon_destroy;
} WLR_PRIVATE;
};

18
types/data_device/wlr_drag.c
View file

@ -19,6 +19,14 @@ static void drag_handle_seat_client_destroy(struct wl_listener *listener,
wl_list_remove(&drag->seat_client_destroy.link);
}
static void drag_set_focus(struct wlr_drag *drag,
struct wlr_surface *surface, double sx, double sy);
static void drag_handle_focus_destroy(struct wl_listener *listener, void *data) {
struct wlr_drag *drag = wl_container_of(listener, drag, focus_destroy);
drag_set_focus(drag, NULL, 0, 0);
}
static void drag_set_focus(struct wlr_drag *drag,
struct wlr_surface *surface, double sx, double sy) {
if (drag->focus == surface) {
@ -48,9 +56,12 @@ static void drag_set_focus(struct wlr_drag *drag,
}
drag->focus_client = NULL;
drag->focus = NULL;
}
wl_list_remove(&drag->focus_destroy.link);
wl_list_init(&drag->focus_destroy.link);
drag->focus = NULL;
if (!surface) {
goto out;
}
@ -99,6 +110,8 @@ static void drag_set_focus(struct wlr_drag *drag,
drag->focus = surface;
drag->focus_client = focus_client;
drag->focus_destroy.notify = drag_handle_focus_destroy;
wl_signal_add(&surface->events.destroy, &drag->focus_destroy);
drag->seat_client_destroy.notify = drag_handle_seat_client_destroy;
wl_signal_add(&focus_client->events.destroy, &drag->seat_client_destroy);
@ -150,6 +163,7 @@ static void drag_destroy(struct wlr_drag *drag) {
if (drag->source) {
wl_list_remove(&drag->source_destroy.link);
}
wl_list_remove(&drag->focus_destroy.link);
if (drag->icon != NULL) {
drag_icon_destroy(drag->icon);
@ -410,6 +424,8 @@ struct wlr_drag *wlr_drag_create(struct wlr_seat_client *seat_client,
wl_signal_init(&drag->events.drop);
wl_signal_init(&drag->events.destroy);
wl_list_init(&drag->focus_destroy.link);
drag->seat = seat_client->seat;
drag->seat_client = seat_client;