support hiding tray icons

include/modules/sni/icon_manager.hpp

@@ -5,6 +5,7 @@
 
 #include <string>
 #include <unordered_map>
+#include <unordered_set>
 
 class IconManager {
  public:
@@ -19,7 +20,10 @@ class IconManager {
         std::string app_name = key;
         const Json::Value& icon_value = icons_config[key];
 
-        if (icon_value.isString()) {
+        if (icon_value.isBool() && !icon_value.asBool()) {
+          // false value means hide this app
+          hidden_apps_.insert(app_name);
+        } else if (icon_value.isString()) {
           std::string icon_path = icon_value.asString();
           icons_map_[app_name] = icon_path;
         }
@@ -37,7 +41,12 @@ class IconManager {
     return "";
   }
 
+  bool isHidden(const std::string& app_name) const {
+    return hidden_apps_.find(app_name) != hidden_apps_.end();
+  }
+
  private:
   IconManager() = default;
   std::unordered_map<std::string, std::string> icons_map_;
+  std::unordered_set<std::string> hidden_apps_;
 };

include/modules/sni/item.hpp

@@ -86,6 +86,8 @@ class Item : public sigc::trackable {
   gdouble distance_scrolled_y_ = 0;
   // visibility of items with Status == Passive
   bool show_passive_ = false;
+  // hidden via config
+  bool is_hidden_ = false;
 
   const Bar& bar_;
 

man/waybar-tray.5.scd

@@ -42,16 +42,24 @@ Addressed by *tray*
 	default: false ++
 	Enables this module to consume all left over space dynamically.
 
+*icons*: ++
+	typeof: object ++
+	Per-application icon customization. Keys are application IDs (e.g., "spotify", "blueman"). ++
+	Values can be: ++
+		- *string*: Custom icon name or path to icon file ++
+		- *false*: Hide this application's tray icon completely
+
 # EXAMPLES
 
 ```
 "tray": {
 	"icon-size": 21,
 	"spacing": 10,
-  "icons": {
-    "blueman": "bluetooth",
-    "TelegramDesktop": "$HOME/.local/share/icons/hicolor/16x16/apps/telegram.png"
-  }
+	"icons": {
+		"blueman": "bluetooth",
+		"TelegramDesktop": "$HOME/.local/share/icons/hicolor/16x16/apps/telegram.png",
+		"spotify": false
+	}
 }
 
 ```

src/modules/sni/item.cpp

@@ -156,15 +156,23 @@ void Item::setProperty(const Glib::ustring& name, Glib::VariantBase& value) {
        * I still haven't found a way for it to pick from theme automatically, although
        * it might be my theme.
        */
+      std::string icon_id = id;
       if (id == "chrome_status_icon_1") {
         Glib::VariantBase value;
         this->proxy_->get_cached_property(value, "ToolTip");
         tooltip = get_variant<ToolTip>(value);
         if (!tooltip.text.empty()) {
-          setCustomIcon(tooltip.text.lowercase());
+          icon_id = tooltip.text.lowercase();
+          setCustomIcon(icon_id);
         }
       } else {
-        setCustomIcon(id);
+        setCustomIcon(icon_id);
+      }
+
+      // Check if this item should be hidden
+      if (IconManager::instance().isHidden(icon_id)) {
+        spdlog::debug("Hiding tray item with ID: {}", icon_id);
+        is_hidden_ = true;
       }
     } else if (name == "Title") {
       title = get_variant<std::string>(value);
@@ -214,7 +222,7 @@ void Item::setProperty(const Glib::ustring& name, Glib::VariantBase& value) {
 
 void Item::setStatus(const Glib::ustring& value) {
   Glib::ustring lower = value.lowercase();
-  event_box.set_visible(show_passive_ || lower.compare("passive") != 0);
+  event_box.set_visible(!is_hidden_ && (show_passive_ || lower.compare("passive") != 0));
 
   auto style = event_box.get_style_context();
   for (const auto& class_name : style->list_classes()) {

src/modules/sni/tray.cpp

@@ -8,11 +8,18 @@
 
 namespace waybar::modules::SNI {
 
+static void initIconsConfig(const Json::Value& config) {
+  if (config["icons"].isObject()) {
+    IconManager::instance().setIconsConfig(config["icons"]);
+  }
+}
+
 Tray::Tray(const std::string& id, const Bar& bar, const Json::Value& config)
     : AModule(config, "tray", id),
       box_(bar.orientation, 0),
       watcher_(SNI::Watcher::getInstance()),
-      host_(nb_hosts_, config, bar, std::bind(&Tray::onAdd, this, std::placeholders::_1),
+      host_((initIconsConfig(config), nb_hosts_), config, bar,
+            std::bind(&Tray::onAdd, this, std::placeholders::_1),
             std::bind(&Tray::onRemove, this, std::placeholders::_1)) {
   box_.set_name("tray");
   event_box_.add(box_);
@@ -27,9 +34,6 @@ Tray::Tray(const std::string& id, const Bar& bar, const Json::Value& config)
     show_passive_ = config["show-passive-items"].asBool();
   }
   nb_hosts_ += 1;
-  if (config_["icons"].isObject()) {
-    IconManager::instance().setIconsConfig(config_["icons"]);
-  }
   dp.emit();
 }