swaybar: handle mode/hidden_state changes

As well as adding the hidden_state property to the bar config struct,
this commit handles barconfig_update events when the mode or
hidden_state changes, and uses a new function determine_bar_visibility
to hide or show the bar as required, using, respectively,
destroy_layer_surface, which is also newly added, and add_layer_surface,
which has been changed to allow dynamically adding the surface.

1 files changed, 6 insertions, 1 deletions

diff --git a/swaybar/render.c b/swaybar/render.c
index d226ba32..670630cf 100644
--- a/swaybar/render.c
+++ b/swaybar/render.c
@@ -494,6 +494,9 @@ static const struct wl_callback_listener output_frame_listener = {
 
 void render_frame(struct swaybar_output *output) {
         assert(output->surface != NULL);
+        if (!output->layer_surface) {
+                return;
+        }
 
         free_hotspots(&output->hotspots);
 
@@ -519,7 +522,9 @@ void render_frame(struct swaybar_output *output) {
         if (height != output->height) {
                 // Reconfigure surface
                 zwlr_layer_surface_v1_set_size(output->layer_surface, 0, height);
-                zwlr_layer_surface_v1_set_exclusive_zone(output->layer_surface, height);
+                if (strcmp(output->bar->config->mode, "dock") == 0) {
+                        zwlr_layer_surface_v1_set_exclusive_zone(output->layer_surface, height);
+                }
                 // TODO: this could infinite loop if the compositor assigns us a
                 // different height than what we asked for
                 wl_surface_commit(output->surface);