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session-lock: fix flashing screen when the session is locked

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The protocol says screen should be filled with opaque color when the
session is locked, but it allows some delay to wait for the session-lock
client to offer surfaces.

With this commit, filling the sceen with opaque color is delayed by 100ms.
This commit is contained in:
tokyo4j 2024-05-30 00:29:59 +09:00 • committed by Hiroaki Yamamoto
parent a39c8afc10
commit 9e5ea88c70
1 changed files with 19 additions and 0 deletions
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19
src/session-lock.c
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@ -10,6 +10,7 @@ struct session_lock_output {
struct session_lock_manager *manager;
struct output *output;
struct wlr_session_lock_surface_v1 *surface;
struct wl_event_source *blank_timer;
struct wl_list link; /* session_lock_manager.outputs */
@ -124,6 +125,7 @@ session_lock_output_destroy(struct session_lock_output *output)
wl_list_remove(&output->commit.link);
wl_list_remove(&output->destroy.link);
wl_list_remove(&output->link);
wl_event_source_remove(output->blank_timer);
free(output);
}
@ -155,6 +157,14 @@ align_session_lock_tree(struct output *output)
wlr_scene_node_set_position(&output->session_lock_tree->node, box.x, box.y);
}
static int
handle_output_blank_timeout(void *data)
{
struct session_lock_output *lock_output = data;
wlr_scene_node_set_enabled(&lock_output->background->node, true);
return 0;
}
void
session_lock_output_create(struct session_lock_manager *manager, struct output *output)
{
@ -181,6 +191,15 @@ session_lock_output_create(struct session_lock_manager *manager, struct output *
goto exit_session;
}
/* Delay blanking output by 100ms to prevent flashing */
lock_output->blank_timer =
wl_event_loop_add_timer(manager->server->wl_event_loop,
handle_output_blank_timeout, lock_output);
if (!manager->locked) {
wlr_scene_node_set_enabled(&background->node, false);
wl_event_source_timer_update(lock_output->blank_timer, 100);
}
align_session_lock_tree(output);
lock_output->output = output;