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Fix focus tracking when session lock is active

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Remove the incorrect attempt to block focus changes when an input grab
is present and replace it with the same logic used for layer_shell-based
screen lockers: restore the focus after changing it.

This fixes a use-after-free of seat->workspace if outputs are destroyed
while a screen lock is enabled.
This commit is contained in:
Daniel De Graaf 2022-04-30 00:46:53 -04:00 committed by Simon Ser
parent 8f7bb145b7
commit 8aa89dc277
1 changed files with 15 additions and 14 deletions
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29
sway/input/seat.c
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@ -1134,15 +1134,7 @@ void seat_set_raw_focus(struct sway_seat *seat, struct sway_node *node) {
}
}
void seat_set_focus(struct sway_seat *seat, struct sway_node *node) {
if (seat->focused_layer) {
struct wlr_layer_surface_v1 *layer = seat->focused_layer;
seat_set_focus_layer(seat, NULL);
seat_set_focus(seat, node);
seat_set_focus_layer(seat, layer);
return;
}
static void seat_set_workspace_focus(struct sway_seat *seat, struct sway_node *node) {
struct sway_node *last_focus = seat_get_focus(seat);
if (last_focus == node) {
return;
@ -1176,11 +1168,6 @@ void seat_set_focus(struct sway_seat *seat, struct sway_node *node) {
return;
}
// Deny setting focus when an input grab or lockscreen is active
if (container && container->view && !seat_is_input_allowed(seat, container->view->surface)) {
return;
}
struct sway_output *new_output =
new_workspace ? new_workspace->output : NULL;
@ -1280,6 +1267,20 @@ void seat_set_focus(struct sway_seat *seat, struct sway_node *node) {
}
}
void seat_set_focus(struct sway_seat *seat, struct sway_node *node) {
if (seat->focused_layer) {
struct wlr_layer_surface_v1 *layer = seat->focused_layer;
seat_set_focus_layer(seat, NULL);
seat_set_workspace_focus(seat, node);
seat_set_focus_layer(seat, layer);
} else {
seat_set_workspace_focus(seat, node);
}
if (server.session_lock.locked) {
seat_set_focus_surface(seat, server.session_lock.focused, false);
}
}
void seat_set_focus_container(struct sway_seat *seat,
struct sway_container *con) {
seat_set_focus(seat, con ? &con->node : NULL);