Merge pull request Alexays#3823 from thetwistedlogic/feature/river-hide-vacant

Hide vacant tags config option on River

Author: Alexays

man/waybar-river-tags.5.scd

@@ -31,6 +31,11 @@ Addressed by *river/tags*
 	default: false ++
 	Enables this module to consume all left over space dynamically.
 
+*hide-vacant*: ++
+	typeof: bool ++
+	default: false ++
+	Only show relevant tags: tags that are either focused or have a window on them.
+
 # EXAMPLE
 
 ```

src/modules/river/tags.cpp

@@ -189,10 +189,20 @@ bool Tags::handle_button_press(GdkEventButton *event_button, uint32_t tag) {
 }
 
 void Tags::handle_focused_tags(uint32_t tags) {
+  auto hide_vacant = config_["hide-vacant"].asBool();
   for (size_t i = 0; i < buttons_.size(); ++i) {
+    bool visible = buttons_[i].is_visible();
+    bool occupied = buttons_[i].get_style_context()->has_class("occupied");
+    bool urgent = buttons_[i].get_style_context()->has_class("urgent");
     if ((1 << i) & tags) {
+      if (hide_vacant && !visible) {
+        buttons_[i].set_visible(true);
+      }
       buttons_[i].get_style_context()->add_class("focused");
     } else {
+      if (hide_vacant && !(occupied || urgent)) {
+        buttons_[i].set_visible(false);
+      }
       buttons_[i].get_style_context()->remove_class("focused");
     }
   }
@@ -205,20 +215,40 @@ void Tags::handle_view_tags(struct wl_array *view_tags) {
   for (; view_tag < end; ++view_tag) {
     tags |= *view_tag;
   }
+  auto hide_vacant = config_["hide-vacant"].asBool();
   for (size_t i = 0; i < buttons_.size(); ++i) {
+    bool visible = buttons_[i].is_visible();
+    bool focused = buttons_[i].get_style_context()->has_class("focused");
+    bool urgent = buttons_[i].get_style_context()->has_class("urgent");
     if ((1 << i) & tags) {
+      if (hide_vacant && !visible) {
+        buttons_[i].set_visible(true);
+      }
       buttons_[i].get_style_context()->add_class("occupied");
     } else {
+      if (hide_vacant && !(focused || urgent)) {
+        buttons_[i].set_visible(false);
+      }
       buttons_[i].get_style_context()->remove_class("occupied");
     }
   }
 }
 
 void Tags::handle_urgent_tags(uint32_t tags) {
+  auto hide_vacant = config_["hide-vacant"].asBool();
   for (size_t i = 0; i < buttons_.size(); ++i) {
+    bool visible = buttons_[i].is_visible();
+    bool occupied = buttons_[i].get_style_context()->has_class("occupied");
+    bool focused = buttons_[i].get_style_context()->has_class("focused");
     if ((1 << i) & tags) {
+      if (hide_vacant && !visible) {
+        buttons_[i].set_visible(true);
+      }
       buttons_[i].get_style_context()->add_class("urgent");
     } else {
+      if (hide_vacant && !(occupied || focused)) {
+        buttons_[i].set_visible(false);
+      }
       buttons_[i].get_style_context()->remove_class("urgent");
     }
   }