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, 1 insertions, 0 deletions

diff --git a/include/swaybar/config.h b/include/swaybar/config.h
index 68ee2087..10904bca 100644
--- a/include/swaybar/config.h
+++ b/include/swaybar/config.h
@@ -31,6 +31,7 @@ struct swaybar_config {
         char *font;
         char *sep_symbol;
         char *mode;
+        char *hidden_state;
         bool strip_workspace_numbers;
         bool binding_mode_indicator;
         bool wrap_scroll;