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layer-shell: unfocus output-less layer on unmap

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If a layer is focused by any seat, it needs to be unfocused on unmap. If
the unmap was due to an output being disabled, there would not be a
sway_output and unmap would do an early return. This results in a
use-after-free if the layer was focused by any seat prior to being
unmapped. This change just moves the refocusing code above the early
returns.
This commit is contained in:
Brian Ashworth 2019-12-10 19:54:16 -05:00 committed by Drew DeVault
parent 2d0f15debb
commit b7f0656fab
1 changed files with 9 additions and 9 deletions
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18
sway/desktop/layer_shell.c
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@ -301,6 +301,15 @@ static void handle_surface_commit(struct wl_listener *listener, void *data) {
}
static void unmap(struct sway_layer_surface *sway_layer) {
struct sway_seat *seat;
wl_list_for_each(seat, &server.input->seats, link) {
if (seat->focused_layer == sway_layer->layer_surface) {
seat_set_focus_layer(seat, NULL);
}
}
cursor_rebase_all();
struct wlr_output *wlr_output = sway_layer->layer_surface->output;
if (wlr_output == NULL) {
return;
@ -311,15 +320,6 @@ static void unmap(struct sway_layer_surface *sway_layer) {
}
output_damage_surface(output, sway_layer->geo.x, sway_layer->geo.y,
sway_layer->layer_surface->surface, true);
struct sway_seat *seat;
wl_list_for_each(seat, &server.input->seats, link) {
if (seat->focused_layer == sway_layer->layer_surface) {
seat_set_focus_layer(seat, NULL);
}
}
cursor_rebase_all();
}
static void handle_destroy(struct wl_listener *listener, void *data) {