layer_shell: order destroying before sway_output

Both sway_output and sway_layer_shell listen to wlr's output destroy event,
but sway_layer_shell needs to access into sway_output's data strucure and needs
to be destroyed first.

Resolve this by making sway_layer_shell listen to a new event that happens at
start of sway_output's destroy handler

1 files changed, 3 insertions, 0 deletions

diff --git a/sway/desktop/output.c b/sway/desktop/output.c
index d4115be8..f0f1603a 100644
--- a/sway/desktop/output.c
+++ b/sway/desktop/output.c
@@ -1199,6 +1199,8 @@ static void damage_handle_destroy(struct wl_listener *listener, void *data) {
 
 static void handle_destroy(struct wl_listener *listener, void *data) {
 	struct sway_output *output = wl_container_of(listener, output, destroy);
+	wl_signal_emit(&output->events.destroy, output);
+
 	if (output->swayc) {
 		container_destroy(output->swayc);
 	}
@@ -1277,6 +1279,7 @@ void output_enable(struct sway_output *output) {
 	for (size_t i = 0; i < len; ++i) {
 		wl_list_init(&output->layers[i]);
 	}
+	wl_signal_init(&output->events.destroy);
 
 	input_manager_configure_xcursor(input_manager);