Merge pull request #3925 from casKd-dev/dwl/hide-vacant

dwl/tags: add hide-vacant option

include/modules/dwl/tags.hpp

@@ -30,6 +30,7 @@ class Tags : public waybar::AModule {
   const waybar::Bar& bar_;
   Gtk::Box box_;
   std::vector<Gtk::Button> buttons_;
+  bool hide_vacant_;
   struct zdwl_ipc_output_v2* output_status_;
 };
 

man/waybar-dwl-tags.5.scd

@@ -21,6 +21,11 @@ Addressed by *dwl/tags*
 	typeof: array ++
 	The label to display for each tag.
 
+*hide-vacant*: ++
+	typeof: bool ++
+	default: false ++
+	If set to true, tags without clients and that are not active will be hidden.
+
 *disable-click*: ++
 	typeof: bool ++
 	default: false ++

src/modules/dwl/tags.cpp

@@ -70,7 +70,6 @@ static const zdwl_ipc_output_v2_listener output_status_listener_impl{
 
 static void handle_global(void* data, struct wl_registry* registry, uint32_t name,
                           const char* interface, uint32_t version) {
-  
   if (std::strcmp(interface, zdwl_ipc_manager_v2_interface.name) == 0) {
     auto* self = static_cast<Tags*>(data);
 
@@ -93,8 +92,8 @@ if (std::strcmp(interface, wl_seat_interface.name) == 0) {
 
     version = std::min<uint32_t>(version, 1);
 
-  self->seat_ = static_cast<struct wl_seat*>(
-      wl_registry_bind(registry, name, &wl_seat_interface, version));
+    self->seat_ =
+        static_cast<struct wl_seat*>(wl_registry_bind(registry, name, &wl_seat_interface, version));
   }
 }
 static void handle_global_remove(void* data, struct wl_registry* registry, uint32_t name) {
@@ -110,7 +109,11 @@ Tags::Tags(const std::string& id, const waybar::Bar& bar, const Json::Value& con
       seat_{nullptr},
       bar_(bar),
       box_{bar.orientation, 0},
+      hide_vacant_(false),
       output_status_{nullptr} {
+  if (config_["hide-vacant"].asBool()) {
+    hide_vacant_ = config_["hide-vacant"].asBool();
+  }
   struct wl_display* display = Client::inst()->wl_display;
   struct wl_registry* registry = wl_display_get_registry(display);
 
@@ -221,6 +224,12 @@ void Tags::handle_view_tags(uint32_t tag, uint32_t state, uint32_t clients, uint
   } else {
     button.get_style_context()->remove_class("urgent");
   }
+
+  if (hide_vacant_ && !clients && !(state & TAG_ACTIVE)) {
+    button.set_visible(false);
+  } else {
+    button.set_visible(true);
+  }
 }
 
 void Tags::handle_active_output(zdwl_ipc_output_v2* zdwl_output_v2, uint32_t active) {