Merge branch 'master' into sayrus-gh/sway-workspaces-quotes

.github/workflows/clang-format.yml

@@ -10,13 +10,9 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
-      # TODO: bump to clang 19 release
+      - uses: RafikFarhad/clang-format-github-action@v6
-      # - uses: DoozyX/clang-format-lint-action@v0.18.2
-      - uses: DoozyX/clang-format-lint-action@558090054b3f39e3d6af24f0cd73b319535da809
         name: clang-format
         with:
-          source: "."
+          sources: "src/**/*.hpp,src/**/*.cpp"
-          extensions: "hpp,h,cpp,c"
+          style: "file"
-          style: "file:.clang-format"
-          clangFormatVersion: 19

.github/workflows/clang-tidy.yml.bak

@@ -12,7 +12,7 @@ jobs:
     container:
       image: alexays/waybar:debian
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: configure
         run: |
           meson -Dcpp_std=c++20 build  # necessary to generate compile_commands.json

.github/workflows/docker.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Login to Docker Hub
         uses: docker/login-action@v3

.github/workflows/freebsd.yml

@@ -12,7 +12,7 @@ jobs:
     # https://github.com/actions/runner/issues/385 - for FreeBSD runner support
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Test in FreeBSD VM
         uses: cross-platform-actions/action@v0.28.0
         timeout-minutes: 180

.github/workflows/linux.yml

@@ -25,7 +25,7 @@ jobs:
       image: alexays/waybar:${{ matrix.distro }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: configure
         run: meson setup -Dman-pages=enabled -Dcpp_std=${{matrix.cpp_std}} build
       - name: build

.github/workflows/nix-tests.yml

@@ -2,12 +2,15 @@ name: "Nix-Tests"
 on:
   pull_request:
   push:
+concurrency:
+  group: ${{ github.workflow }}-nix-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
 jobs:
   nix-flake-check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
-    - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: |
             experimental-features = nix-command flakes

.github/workflows/nix-update-flake-lock.yml

@@ -12,11 +12,11 @@ jobs:
     if: github.event_name != 'schedule' || github.repository == 'Alexays/Waybar'
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Nix
-        uses: cachix/install-nix-action@v27
+        uses: cachix/install-nix-action@v31
         with:
           extra_nix_config: |
             access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
       - name: Update flake.lock
-        uses: DeterminateSystems/update-flake-lock@v21
+        uses: DeterminateSystems/update-flake-lock@v28

.gitignore

@@ -7,6 +7,7 @@ vgcore.*
 *.swp
 packagecache
 /subprojects/**/
+/subprojects/.wraplock
 /build*
 /dist
 /meson.egg-info
@@ -50,3 +51,5 @@ result
 result-*
 
 .ccls-cache
+_codeql_detected_source_root
+heaptrack*

README.md

@@ -119,7 +119,7 @@ sudo apt install \
 On Arch, you can use this command:
 
 ```
-pacman -S \
+pacman -S --asdeps \
   gtkmm3 \
   jsoncpp \
   libsigc++ \
@@ -151,6 +151,10 @@ Contributions welcome!<br>
 Have fun :)<br>
 The style guidelines are [Google's](https://google.github.io/styleguide/cppguide.html)
 
+> [!CAUTION]
+> Distributions of Waybar are only released on the [official GitHub page](https://github.com/Alexays/Waybar).<br/>
+> Waybar does **not** have an official website. Do not trust any sites that claim to be official.
+
 ## License
 
 Waybar is licensed under the MIT license. [See LICENSE for more information](https://github.com/Alexays/Waybar/blob/master/LICENSE).

_codeql_detected_source_root

@@ -0,0 +1 @@
+.

flake.lock

@@ -3,11 +3,11 @@
     "flake-compat": {
       "flake": false,
       "locked": {
-        "lastModified": 1761588595,
+        "lastModified": 1767039857,
-        "narHash": "sha256-XKUZz9zewJNUj46b4AJdiRZJAvSZ0Dqj2BNfXvFlJC4=",
+        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "f387cd2afec9419c8ee37694406ca490c3f34ee5",
+        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
         "type": "github"
       },
       "original": {
@@ -18,11 +18,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1764242076,
+        "lastModified": 1769461804,
-        "narHash": "sha256-sKoIWfnijJ0+9e4wRvIgm/HgE27bzwQxcEmo2J/gNpI=",
+        "narHash": "sha256-msG8SU5WsBUfVVa/9RPLaymvi5bI8edTavbIq3vRlhI=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2fad6eac6077f03fe109c4d4eb171cf96791faa4",
+        "rev": "bfc1b8a4574108ceef22f02bafcf6611380c100d",
         "type": "github"
       },
       "original": {

include/AModule.hpp

@@ -25,6 +25,10 @@ class AModule : public IModule {
 
   bool expandEnabled() const;
 
+  virtual void suspend() {};
+  virtual void resume() {};
+  bool shouldSuspend() const { return disable_on_sleep_; }
+
  protected:
   // Don't need to make an object directly
   // Derived classes are able to use it
@@ -48,7 +52,9 @@ class AModule : public IModule {
   virtual bool handleMouseLeave(GdkEventCrossing* const& ev);
   virtual bool handleScroll(GdkEventScroll*);
   virtual bool handleRelease(GdkEventButton* const& ev);
-  GObject *menu_;
+
+  bool disable_on_sleep_{false};
+  GObject* menu_ = nullptr;
 
  private:
   bool handleUserEvent(GdkEventButton* const& ev);
@@ -57,6 +63,7 @@ class AModule : public IModule {
   bool hasUserEvents_;
   gdouble distance_scrolled_y_;
   gdouble distance_scrolled_x_;
+  sigc::connection cursor_timeout_conn_;
   std::map<std::string, std::string> eventActionMap_;
   static const inline std::map<std::pair<uint, GdkEventType>, std::string> eventMap_{
       {std::make_pair(1, GdkEventType::GDK_BUTTON_PRESS), "on-click"},

include/bar.hpp

@@ -75,6 +75,8 @@ class Bar : public sigc::trackable {
   util::KillSignalAction getOnSigusr1Action();
   util::KillSignalAction getOnSigusr2Action();
 
+  void toggleSuspend(bool suspend);
+
   struct waybar_output* output;
   Json::Value config;
   struct wl_surface* surface;

include/group.hpp

@@ -30,6 +30,7 @@ class Group : public AModule {
   bool handleMouseEnter(GdkEventCrossing* const& ev) override;
   bool handleMouseLeave(GdkEventCrossing* const& ev) override;
   bool handleToggle(GdkEventButton* const& ev) override;
+  bool handleScroll(GdkEventScroll* e) override;
   void show_group();
   void hide_group();
 };

include/modules/battery.hpp

@@ -6,7 +6,7 @@
 #if defined(__linux__)
 #include <sys/inotify.h>
 #endif
-#include <sys/poll.h>
+#include <poll.h>
 
 #include <algorithm>
 #include <fstream>

include/modules/custom.hpp

@@ -35,6 +35,7 @@ class Custom : public ALabel {
   std::string id_;
   std::string alt_;
   std::string tooltip_;
+  std::string last_tooltip_markup_;
   const bool tooltip_format_enabled_;
   std::vector<std::string> class_;
   int percentage_;

include/modules/disk.hpp

@@ -22,7 +22,7 @@ class Disk : public ALabel {
   std::string path_;
   std::string unit_;
 
-  float calc_specific_divisor(const std::string divisor);
+  float calc_specific_divisor(const std::string& divisor);
 };
 
 }  // namespace waybar::modules

include/modules/gamemode.hpp

@@ -26,7 +26,7 @@ class Gamemode : public AModule {
   const std::string DEFAULT_FORMAT = "{glyph}";
   const std::string DEFAULT_FORMAT_ALT = "{glyph} {count}";
   const std::string DEFAULT_TOOLTIP_FORMAT = "Games running: {count}";
-  const std::string DEFAULT_GLYPH = "";
+  const std::string DEFAULT_GLYPH = "󰊴";
 
   void appear(const Glib::RefPtr<Gio::DBus::Connection>& connection, const Glib::ustring& name,
               const Glib::ustring& name_owner);

include/modules/hyprland/backend.hpp

@@ -1,8 +1,10 @@
 #pragma once
 
+#include <atomic>
 #include <filesystem>
 #include <list>
 #include <mutex>
+#include <optional>
 #include <string>
 #include <thread>
 #include <utility>
@@ -34,19 +36,33 @@ class IPC {
   Json::Value getSocket1JsonReply(const std::string& rq);
   static std::filesystem::path getSocketFolder(const char* instanceSig);
 
+  /// Dispatch a Hyprland command. Automatically uses the correct protocol
+  /// (legacy text or Lua-based) depending on the running Hyprland version.
+  static std::string dispatch(const std::string& dispatcher, const std::string& arg);
+
+  /// Build a Lua-format dispatch command string.
+  static std::string buildLuaDispatch(const std::string& dispatcher, const std::string& arg);
+
  protected:
   static std::filesystem::path socketFolder_;
 
+  /// Detect whether the running Hyprland uses the Lua-based IPC protocol.
+  /// Returns true for Hyprland >= 0.54 (Lua config), false for older versions.
+  static bool isLuaProtocol();
+
+  static std::optional<bool> s_luaProtocolDetected_;  // cached detection result
+
  private:
   void socketListener();
   void parseIPC(const std::string&);
 
   std::thread ipcThread_;
   std::mutex callbackMutex_;
+  std::mutex socketMutex_;
   util::JsonParser parser_;
   std::list<std::pair<std::string, EventHandler*>> callbacks_;
-  int socketfd_;  // the hyprland socket file descriptor
+  int socketfd_ = -1;  // the hyprland socket file descriptor
-  pid_t socketOwnerPid_;
+  pid_t socketOwnerPid_ = -1;
-  bool running_ = true;  // the ipcThread will stop running when this is false
+  std::atomic<bool> running_ = true;  // the ipcThread will stop running when this is false
 };
 };  // namespace waybar::modules::hyprland

include/modules/hyprland/submap.hpp

@@ -26,6 +26,7 @@ class Submap : public waybar::ALabel, public EventHandler {
   const Bar& bar_;
   util::JsonParser parser_;
   std::string submap_;
+  std::string prev_submap_;
   bool always_on_ = false;
   std::string default_submap_ = "Default";
 

include/modules/hyprland/window.hpp

@@ -20,8 +20,8 @@ class Window : public waybar::AAppIconLabel, public EventHandler {
 
  private:
   struct Workspace {
-    int id;
+    int id = 0;
-    int windows;
+    int windows = 0;
     std::string last_window;
     std::string last_window_title;
 
@@ -29,14 +29,14 @@ class Window : public waybar::AAppIconLabel, public EventHandler {
   };
 
   struct WindowData {
-    bool floating;
+    bool floating = false;
     int monitor = -1;
     std::string class_name;
     std::string initial_class_name;
     std::string title;
     std::string initial_title;
-    bool fullscreen;
+    bool fullscreen = false;
-    bool grouped;
+    bool grouped = false;
 
     static auto parse(const Json::Value&) -> WindowData;
   };
@@ -47,7 +47,7 @@ class Window : public waybar::AAppIconLabel, public EventHandler {
   void queryActiveWorkspace();
   void setClass(const std::string&, bool enable);
 
-  bool separateOutputs_;
+  bool separateOutputs_ = false;
   std::mutex mutex_;
   const Bar& bar_;
   util::JsonParser parser_;
@@ -55,11 +55,11 @@ class Window : public waybar::AAppIconLabel, public EventHandler {
   Workspace workspace_;
   std::string soloClass_;
   std::string lastSoloClass_;
-  bool solo_;
+  bool solo_ = false;
-  bool allFloating_;
+  bool allFloating_ = false;
-  bool swallowing_;
+  bool swallowing_ = false;
-  bool fullscreen_;
+  bool fullscreen_ = false;
-  bool focused_;
+  bool focused_ = false;
 
   IPC& m_ipc;
 };

include/modules/hyprland/windowcreationpayload.hpp

@@ -40,10 +40,11 @@ struct WindowRepr {
 
 class WindowCreationPayload {
  public:
-  WindowCreationPayload(std::string workspace_name, WindowAddress window_address,
+  WindowCreationPayload(const std::string& workspace_name, WindowAddress window_address,
                         WindowRepr window_repr);
-  WindowCreationPayload(std::string workspace_name, WindowAddress window_address,
+  WindowCreationPayload(const std::string& workspace_name, WindowAddress window_address,
-                        std::string window_class, std::string window_title, bool is_active);
+                        const std::string& window_class, const std::string& window_title,
+                        bool is_active);
   WindowCreationPayload(Json::Value const& client_data);
 
   int incrementTimeSpentUncreated();

include/modules/hyprland/workspaces.hpp

@@ -4,6 +4,7 @@
 #include <gtkmm/enums.h>
 #include <gtkmm/label.h>
 #include <json/value.h>
+#include <sigc++/connection.h>
 
 #include <cstdint>
 #include <map>
@@ -43,6 +44,7 @@ class Workspaces : public AModule, public EventHandler {
   auto moveToMonitor() const -> bool { return m_moveToMonitor; }
   auto enableTaskbar() const -> bool { return m_enableTaskbar; }
   auto taskbarWithIcon() const -> bool { return m_taskbarWithIcon; }
+  auto barScroll() const -> bool { return m_barScroll; }
 
   auto getBarOutput() const -> std::string { return m_bar.output->name; }
   auto formatBefore() const -> std::string { return m_formatBefore; }
@@ -58,7 +60,7 @@ class Workspaces : public AModule, public EventHandler {
   enum class ActiveWindowPosition { NONE, FIRST, LAST };
   auto activeWindowPosition() const -> ActiveWindowPosition { return m_activeWindowPosition; }
 
-  std::string getRewrite(std::string window_class, std::string window_title);
+  std::string getRewrite(const std::string& window_class, const std::string& window_title);
   std::string& getWindowSeparator() { return m_formatWindowSeparator; }
   bool isWorkspaceIgnored(std::string const& workspace_name);
 
@@ -122,6 +124,8 @@ class Workspaces : public AModule, public EventHandler {
   static std::pair<std::string, std::string> splitDoublePayload(std::string const& payload);
   static std::tuple<std::string, std::string, std::string> splitTriplePayload(
       std::string const& payload);
+  // scroll events
+  bool handleScroll(GdkEventScroll* e) override;
 
   // Update methods
   void doUpdate();
@@ -145,6 +149,7 @@ class Workspaces : public AModule, public EventHandler {
   bool m_specialVisibleOnly = false;
   bool m_persistentOnly = false;
   bool m_moveToMonitor = false;
+  bool m_barScroll = false;
   Json::Value m_persistentWorkspaceConfig;
 
   // Map for windows stored in workspaces not present in the current bar.
@@ -204,6 +209,7 @@ class Workspaces : public AModule, public EventHandler {
   std::mutex m_mutex;
   const Bar& m_bar;
   Gtk::Box m_box;
+  sigc::connection m_scrollEventConnection_;
   IPC& m_ipc;
 };
 

include/modules/keyboard_state.hpp

@@ -3,6 +3,7 @@
 #include <fmt/chrono.h>
 #include <gtkmm/label.h>
 
+#include <mutex>
 #include <set>
 #include <unordered_map>
 
@@ -41,6 +42,7 @@ class KeyboardState : public AModule {
 
   struct libinput* libinput_;
   std::unordered_map<std::string, struct libinput_device*> libinput_devices_;
+  std::mutex devices_mutex_;  // protects libinput_devices_
   std::set<int> binding_keys;
 
   util::SleeperThread libinput_thread_, hotplug_thread_;

include/modules/memory.hpp

@@ -22,6 +22,8 @@ class Memory : public ALabel {
   std::unordered_map<std::string, unsigned long> meminfo_;
 
   util::SleeperThread thread_;
+
+  std::string unit_;
 };
 
 }  // namespace waybar::modules

include/modules/mpd/mpd.hpp

@@ -44,7 +44,7 @@ class MPD : public ALabel {
   std::string getFilename() const;
   void setLabel();
   std::string getStateIcon() const;
-  std::string getOptionIcon(std::string optionName, bool activated) const;
+  std::string getOptionIcon(const std::string& optionName, bool activated) const;
 
   // GUI-side methods
   bool handlePlayPause(GdkEventButton* const&);
@@ -54,7 +54,6 @@ class MPD : public ALabel {
   void tryConnect();
   void checkErrors(mpd_connection* conn);
   void fetchState();
-  void queryMPD();
 
   inline bool stopped() const { return connection_ && state_ == MPD_STATE_STOP; }
   inline bool playing() const { return connection_ && state_ == MPD_STATE_PLAY; }

include/modules/mpd/state.hpp

@@ -197,7 +197,6 @@ class Context {
   void tryConnect() const;
   void checkErrors(mpd_connection*) const;
   void do_update();
-  void queryMPD() const;
   void fetchState() const;
   constexpr mpd_state state() const;
   void emit() const;

include/modules/mpd/state.inl.hpp

@@ -15,7 +15,6 @@ constexpr inline mpd_state Context::state() const { return mpd_module_->state_;
 inline void Context::do_update() { mpd_module_->setLabel(); }
 
 inline void Context::checkErrors(mpd_connection* conn) const { mpd_module_->checkErrors(conn); }
-inline void Context::queryMPD() const { mpd_module_->queryMPD(); }
 inline void Context::fetchState() const { mpd_module_->fetchState(); }
 inline void Context::emit() const { mpd_module_->emit(); }
 

include/modules/mpris/mpris.hpp

@@ -78,6 +78,7 @@ class Mpris : public ALabel {
 
   PlayerctlPlayerManager* manager;
   PlayerctlPlayer* player;
+  PlayerctlPlayer* last_active_player_ = nullptr;
   std::string lastStatus;
   std::string lastPlayer;
 

include/modules/network.hpp

@@ -70,6 +70,9 @@ class Network : public ALabel {
 
   unsigned long long bandwidth_down_total_{0};
   unsigned long long bandwidth_up_total_{0};
+  unsigned long long bandwidth_down_prev_{0};
+  unsigned long long bandwidth_up_prev_{0};
+  std::chrono::steady_clock::time_point bandwidth_last_sample_time_;
 
   std::string state_;
   std::string essid_;

include/modules/niri/backend.hpp

@@ -17,7 +17,7 @@ class EventHandler {
 
 class IPC {
  public:
-  IPC() { startIPC(); }
+  IPC();
 
   void registerForIPC(const std::string& ev, EventHandler* ev_handler);
   void unregisterForIPC(EventHandler* handler);

include/modules/sni/host.hpp

@@ -16,7 +16,7 @@ class Host {
  public:
   Host(const std::size_t id, const Json::Value&, const Bar&,
        const std::function<void(std::unique_ptr<Item>&)>&,
-       const std::function<void(std::unique_ptr<Item>&)>&);
+       const std::function<void(std::unique_ptr<Item>&)>&, const std::function<void()>&);
   ~Host();
 
  private:
@@ -28,9 +28,13 @@ class Host {
   static void registerHost(GObject*, GAsyncResult*, gpointer);
   static void itemRegistered(SnWatcher*, const gchar*, gpointer);
   static void itemUnregistered(SnWatcher*, const gchar*, gpointer);
+  void itemReady(Item&);
+  void itemInvalidated(Item&);
+  void removeItem(std::vector<std::unique_ptr<Item>>::iterator);
+  void clearItems();
 
   std::tuple<std::string, std::string> getBusNameAndObjectPath(const std::string);
-  void addRegisteredItem(std::string service);
+  void addRegisteredItem(const std::string& service);
 
   std::vector<std::unique_ptr<Item>> items_;
   const std::string bus_name_;
@@ -43,6 +47,7 @@ class Host {
   const Bar& bar_;
   const std::function<void(std::unique_ptr<Item>&)> on_add_;
   const std::function<void(std::unique_ptr<Item>&)> on_remove_;
+  const std::function<void()> on_update_;
 };
 
 }  // namespace waybar::modules::SNI

include/modules/sni/item.hpp

@@ -11,6 +11,7 @@
 #include <libdbusmenu-gtk/dbusmenu-gtk.h>
 #include <sigc++/trackable.h>
 
+#include <functional>
 #include <set>
 #include <string_view>
 
@@ -25,9 +26,13 @@ struct ToolTip {
 
 class Item : public sigc::trackable {
  public:
-  Item(const std::string&, const std::string&, const Json::Value&, const Bar&);
+  Item(const std::string&, const std::string&, const Json::Value&, const Bar&,
+       const std::function<void(Item&)>&, const std::function<void(Item&)>&,
+       const std::function<void()>&);
   ~Item();
 
+  bool isReady() const;
+
   std::string bus_name;
   std::string object_path;
 
@@ -43,7 +48,9 @@ class Item : public sigc::trackable {
   Glib::RefPtr<Gdk::Pixbuf> icon_pixmap;
   Glib::RefPtr<Gtk::IconTheme> icon_theme;
   std::string overlay_icon_name;
+  Glib::RefPtr<Gdk::Pixbuf> overlay_icon_pixmap;
   std::string attention_icon_name;
+  Glib::RefPtr<Gdk::Pixbuf> attention_icon_pixmap;
   std::string attention_movie_name;
   std::string icon_theme_path;
   std::string menu;
@@ -62,6 +69,8 @@ class Item : public sigc::trackable {
   void proxyReady(Glib::RefPtr<Gio::AsyncResult>& result);
   void setProperty(const Glib::ustring& name, Glib::VariantBase& value);
   void setStatus(const Glib::ustring& value);
+  void setReady();
+  void invalidate();
   void setCustomIcon(const std::string& id);
   void getUpdatedProperties();
   void processUpdatedProperties(Glib::RefPtr<Gio::AsyncResult>& result);
@@ -69,8 +78,13 @@ class Item : public sigc::trackable {
                 const Glib::VariantContainerBase& arguments);
 
   void updateImage();
-  Glib::RefPtr<Gdk::Pixbuf> extractPixBuf(GVariant* variant);
+  static Glib::RefPtr<Gdk::Pixbuf> extractPixBuf(GVariant* variant);
   Glib::RefPtr<Gdk::Pixbuf> getIconPixbuf();
+  Glib::RefPtr<Gdk::Pixbuf> getAttentionIconPixbuf();
+  Glib::RefPtr<Gdk::Pixbuf> getOverlayIconPixbuf();
+  Glib::RefPtr<Gdk::Pixbuf> loadIconFromNameOrFile(const std::string& name, bool log_failure);
+  static Glib::RefPtr<Gdk::Pixbuf> overlayPixbufs(const Glib::RefPtr<Gdk::Pixbuf>&,
+                                                  const Glib::RefPtr<Gdk::Pixbuf>&);
   Glib::RefPtr<Gdk::Pixbuf> getIconByName(const std::string& name, int size);
   double getScaledIconSize();
   static void onMenuDestroyed(Item* self, GObject* old_menu_pointer);
@@ -86,8 +100,13 @@ class Item : public sigc::trackable {
   gdouble distance_scrolled_y_ = 0;
   // visibility of items with Status == Passive
   bool show_passive_ = false;
+  bool ready_ = false;
+  Glib::ustring status_ = "active";
 
   const Bar& bar_;
+  const std::function<void(Item&)> on_ready_;
+  const std::function<void(Item&)> on_invalidate_;
+  const std::function<void()> on_updated_;
 
   Glib::RefPtr<Gio::DBus::Proxy> proxy_;
   Glib::RefPtr<Gio::Cancellable> cancellable_;

include/modules/sni/tray.hpp

@@ -19,6 +19,7 @@ class Tray : public AModule {
  private:
   void onAdd(std::unique_ptr<Item>& item);
   void onRemove(std::unique_ptr<Item>& item);
+  void queueUpdate();
 
   static inline std::size_t nb_hosts_ = 0;
   bool show_passive_ = false;

include/modules/sway/bar.hpp

@@ -37,7 +37,7 @@ class BarIpcClient {
   void onModeUpdate(bool visible_by_modifier);
   void onUrgencyUpdate(bool visible_by_urgency);
   void update();
-  bool isModuleEnabled(std::string name);
+  bool isModuleEnabled(const std::string& name);
 
   Bar& bar_;
   util::JsonParser parser_;

include/modules/sway/ipc/client.hpp

@@ -12,6 +12,8 @@
 #include <string>
 
 #include "ipc.hpp"
+#include "util/SafeSignal.hpp"
+#include "util/scoped_fd.hpp"
 #include "util/sleeper_thread.hpp"
 
 namespace waybar::modules::sway {
@@ -27,8 +29,8 @@ class Ipc {
     std::string payload;
   };
 
-  sigc::signal<void, const struct ipc_response &> signal_event;
+  ::waybar::SafeSignal<const struct ipc_response&> signal_event;
-  sigc::signal<void, const struct ipc_response &> signal_cmd;
+  ::waybar::SafeSignal<const struct ipc_response&> signal_cmd;
 
   void sendCmd(uint32_t type, const std::string& payload = "");
   void subscribe(const std::string& payload);
@@ -44,8 +46,8 @@ class Ipc {
   struct ipc_response send(int fd, uint32_t type, const std::string& payload = "");
   struct ipc_response recv(int fd);
 
-  int fd_;
+  util::ScopedFd fd_;
-  int fd_event_;
+  util::ScopedFd fd_event_;
   std::mutex mutex_;
   util::SleeperThread thread_;
 };

include/modules/sway/language.hpp

@@ -47,7 +47,7 @@ class Language : public ALabel, public sigc::trackable {
   void onEvent(const struct Ipc::ipc_response&);
   void onCmd(const struct Ipc::ipc_response&);
 
-  auto set_current_layout(std::string current_layout) -> void;
+  auto set_current_layout(const std::string& current_layout) -> void;
   auto init_layouts_map(const std::vector<std::string>& used_layouts) -> void;
 
   const static std::string XKB_LAYOUT_NAMES_KEY;

include/modules/sway/workspaces.hpp

@@ -28,7 +28,7 @@ class Workspaces : public AModule, public sigc::trackable {
   static constexpr std::string_view persistent_workspace_switch_cmd_ =
       R"(workspace {} "{}"; move workspace to output "{}"; workspace {} "{}")";
 
-  static int convertWorkspaceNameToNum(std::string name);
+  static int convertWorkspaceNameToNum(const std::string& name);
   static int windowRewritePriorityFunction(std::string const& window_rule);
 
   void onCmd(const struct Ipc::ipc_response&);
@@ -41,7 +41,7 @@ class Workspaces : public AModule, public sigc::trackable {
   std::string getIcon(const std::string&, const Json::Value&);
   std::string getCycleWorkspace(std::vector<Json::Value>::iterator, bool prev) const;
   uint16_t getWorkspaceIndex(const std::string& name) const;
-  static std::string trimWorkspaceName(std::string);
+  static std::string trimWorkspaceName(const std::string&);
   bool handleScroll(GdkEventScroll* /*unused*/) override;
 
   const Bar& bar_;

include/modules/systemd_failed_units.hpp

@@ -3,6 +3,7 @@
 #include <giomm/dbusproxy.h>
 
 #include <string>
+#include <vector>
 
 #include "ALabel.hpp"
 
@@ -11,23 +12,42 @@ namespace waybar::modules {
 class SystemdFailedUnits : public ALabel {
  public:
   SystemdFailedUnits(const std::string&, const Json::Value&);
-  virtual ~SystemdFailedUnits();
+  virtual ~SystemdFailedUnits() = default;
   auto update() -> void override;
 
  private:
-  bool hide_on_ok;
+  struct FailedUnit {
-  std::string format_ok;
+    std::string name;
+    std::string description;
+    std::string load_state;
+    std::string active_state;
+    std::string sub_state;
+    std::string scope;
+  };
 
-  bool update_pending;
+  bool hide_on_ok_;
-  std::string system_state, user_state, overall_state;
+  std::string format_ok_;
-  uint32_t nr_failed_system, nr_failed_user, nr_failed;
+  std::string tooltip_format_;
-  std::string last_status;
+  std::string tooltip_format_ok_;
-  Glib::RefPtr<Gio::DBus::Proxy> system_proxy, user_proxy;
+  std::string tooltip_unit_format_;
+
+  bool update_pending_;
+  std::string system_state_, user_state_, overall_state_;
+  uint32_t nr_failed_system_, nr_failed_user_, nr_failed_;
+  std::string last_status_;
+  Glib::RefPtr<Gio::DBus::Proxy> system_props_proxy_, user_props_proxy_;
+  Glib::RefPtr<Gio::DBus::Proxy> system_manager_proxy_, user_manager_proxy_;
+  std::vector<FailedUnit> failed_units_;
 
   void notify_cb(const Glib::ustring& sender_name, const Glib::ustring& signal_name,
                  const Glib::VariantContainerBase& arguments);
   void RequestFailedUnits();
+  void RequestFailedUnitsList();
   void RequestSystemState();
+  std::vector<FailedUnit> LoadFailedUnitsList(const char* kind,
+                                              Glib::RefPtr<Gio::DBus::Proxy>& proxy,
+                                              const std::string& scope);
+  std::string BuildTooltipFailedList() const;
   void updateData();
 };
 

include/modules/temperature.hpp

@@ -14,6 +14,8 @@ class Temperature : public ALabel {
   Temperature(const std::string&, const Json::Value&);
   virtual ~Temperature() = default;
   auto update() -> void override;
+  void suspend() override;
+  void resume() override;
 
  private:
   float getTemperature();

include/modules/wayfire/backend.hpp

@@ -12,6 +12,8 @@
 #include <unordered_map>
 #include <utility>
 
+#include "util/scoped_fd.hpp"
+
 namespace waybar::modules::wayfire {
 
 using EventHandler = std::function<void(const std::string& event)>;
@@ -71,25 +73,9 @@ struct State {
   auto update_view(const Json::Value& view) -> void;
 };
 
-struct Sock {
+using Sock = util::ScopedFd;
-  int fd;
 
-  Sock(int fd) : fd{fd} {}
+class IPC : public std::enable_shared_from_this<IPC> {
-  ~Sock() { close(fd); }
-  Sock(const Sock&) = delete;
-  auto operator=(const Sock&) = delete;
-  Sock(Sock&& rhs) noexcept {
-    fd = rhs.fd;
-    rhs.fd = -1;
-  }
-  auto& operator=(Sock&& rhs) noexcept {
-    fd = rhs.fd;
-    rhs.fd = -1;
-    return *this;
-  }
-};
-
-class IPC {
   static std::weak_ptr<IPC> instance;
   Json::CharReaderBuilder reader_builder;
   Json::StreamWriterBuilder writer_builder;
@@ -98,7 +84,7 @@ class IPC {
   State state;
   std::mutex state_mutex;
 
-  IPC() { start(); }
+  IPC() = default;
 
   static auto connect() -> Sock;
   auto receive(Sock& sock) -> Json::Value;

include/modules/wlr/taskbar.hpp

@@ -33,8 +33,8 @@ class Taskbar;
 
 class Task {
  public:
-  Task(const waybar::Bar &, const Json::Value &, Taskbar *,
+  Task(const waybar::Bar&, const Json::Value&, Taskbar*, struct zwlr_foreign_toplevel_handle_v1*,
-       struct zwlr_foreign_toplevel_handle_v1 *, struct wl_seat *);
+       struct wl_seat*);
   ~Task();
 
  public:

include/util/SafeSignal.hpp

@@ -3,6 +3,7 @@
 #include <glibmm/dispatcher.h>
 #include <sigc++/signal.h>
 
+#include <cstddef>
 #include <functional>
 #include <mutex>
 #include <queue>
@@ -27,6 +28,12 @@ struct SafeSignal : sigc::signal<void(std::decay_t<Args>...)> {
  public:
   SafeSignal() { dp_.connect(sigc::mem_fun(*this, &SafeSignal::handle_event)); }
 
+  void set_max_queued_events(std::size_t max_queued_events) {
+    std::unique_lock lock(mutex_);
+    max_queued_events_ = max_queued_events;
+    trim_queue_locked();
+  }
+
   template <typename... EmitArgs>
   void emit(EmitArgs&&... args) {
     if (main_tid_ == std::this_thread::get_id()) {
@@ -41,6 +48,9 @@ struct SafeSignal : sigc::signal<void(std::decay_t<Args>...)> {
     } else {
       {
         std::unique_lock lock(mutex_);
+        if (max_queued_events_ != 0 && queue_.size() >= max_queued_events_) {
+          queue_.pop();
+        }
         queue_.emplace(std::forward<EmitArgs>(args)...);
       }
       dp_.emit();
@@ -60,6 +70,15 @@ struct SafeSignal : sigc::signal<void(std::decay_t<Args>...)> {
   using signal_t::emit_reverse;
   using signal_t::make_slot;
 
+  void trim_queue_locked() {
+    if (max_queued_events_ == 0) {
+      return;
+    }
+    while (queue_.size() > max_queued_events_) {
+      queue_.pop();
+    }
+  }
+
   void handle_event() {
     for (std::unique_lock lock(mutex_); !queue_.empty(); lock.lock()) {
       auto args = queue_.front();
@@ -72,6 +91,7 @@ struct SafeSignal : sigc::signal<void(std::decay_t<Args>...)> {
   Glib::Dispatcher dp_;
   std::mutex mutex_;
   std::queue<arg_tuple_t> queue_;
+  std::size_t max_queued_events_ = 4096;
   const std::thread::id main_tid_ = std::this_thread::get_id();
   // cache functor for signal emission to avoid recreating it on each event
   const slot_t cached_fn_ = make_slot();

include/util/command.hpp

@@ -20,6 +20,8 @@ extern std::list<pid_t> reap;
 
 namespace waybar::util::command {
 
+constexpr int kExecFailureExitCode = 127;
+
 struct res {
   int exit_code;
   std::string out;
@@ -59,6 +61,7 @@ inline int close(FILE* fp, pid_t pid) {
       spdlog::debug("Cmd continued");
     } else if (ret == -1) {
       spdlog::debug("waitpid failed: {}", strerror(errno));
+      break;
     } else {
       break;
     }
@@ -109,11 +112,13 @@ inline FILE* open(const std::string& cmd, int& pid, const std::string& output_na
     ::close(fd[0]);
     dup2(fd[1], 1);
     setpgid(child_pid, child_pid);
-    if (output_name != "") {
+    if (!output_name.empty()) {
       setenv("WAYBAR_OUTPUT_NAME", output_name.c_str(), 1);
     }
     execlp("/bin/sh", "sh", "-c", cmd.c_str(), (char*)0);
-    exit(0);
+    const int saved_errno = errno;
+    spdlog::error("execlp(/bin/sh) failed in open: {}", strerror(saved_errno));
+    _exit(kExecFailureExitCode);
   } else {
     ::close(fd[1]);
   }
@@ -138,7 +143,7 @@ inline struct res execNoRead(const std::string& cmd) {
   return {WEXITSTATUS(stat), ""};
 }
 
-inline int32_t forkExec(const std::string& cmd) {
+inline int32_t forkExec(const std::string& cmd, const std::string& output_name) {
   if (cmd == "") return -1;
 
   pid_t pid = fork();
@@ -157,8 +162,13 @@ inline int32_t forkExec(const std::string& cmd) {
     err = pthread_sigmask(SIG_UNBLOCK, &mask, nullptr);
     if (err != 0) spdlog::error("pthread_sigmask in forkExec failed: {}", strerror(err));
     setpgid(pid, pid);
+    if (!output_name.empty()) {
+      setenv("WAYBAR_OUTPUT_NAME", output_name.c_str(), 1);
+    }
     execl("/bin/sh", "sh", "-c", cmd.c_str(), (char*)0);
-    exit(0);
+    const int saved_errno = errno;
+    spdlog::error("execl(/bin/sh) failed in forkExec: {}", strerror(saved_errno));
+    _exit(kExecFailureExitCode);
   } else {
     reap_mtx.lock();
     reap.push_back(pid);
@@ -169,4 +179,6 @@ inline int32_t forkExec(const std::string& cmd) {
   return pid;
 }
 
+inline int32_t forkExec(const std::string& cmd) { return forkExec(cmd, ""); }
+
 }  // namespace waybar::util::command

include/util/hex_checker.hpp

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <string>
+
+/**
+ * Result of transforming 8-bit hex codes to rgba().
+ */
+struct TransformResult {
+  std::string css;
+  bool was_transformed;
+};
+
+/**
+ * Reads a CSS file, searches for 8-bit hex codes (#RRGGBBAA),
+ * and transforms them into GTK-compatible rgba() syntax.
+ */
+TransformResult transform_8bit_to_hex(const std::string& file_path);

include/util/json.hpp

@@ -7,6 +7,7 @@
 #include <codecvt>
 #include <iostream>
 #include <locale>
+#include <memory>
 #include <regex>
 
 #if (FMT_VERSION >= 90000)
@@ -26,19 +27,25 @@ class JsonParser {
     Json::Value root;
 
     // replace all occurrences of "\x" with "\u00", because JSON doesn't allow "\x" escape sequences
-    std::string modifiedJsonStr = replaceHexadecimalEscape(jsonStr);
+    std::string modifiedJsonStr;
+    const std::string* json = &jsonStr;
+    if (jsonStr.find("\\x") != std::string::npos) {
+      modifiedJsonStr = replaceHexadecimalEscape(jsonStr);
+      json = &modifiedJsonStr;
+    }
 
-    std::istringstream jsonStream(modifiedJsonStr);
     std::string errs;
-    if (!Json::parseFromStream(m_readerBuilder, jsonStream, &root, &errs)) {
+    // Use local CharReaderBuilder for thread safety - the IPC singleton's
+    // parser can be called concurrently from multiple module threads
+    Json::CharReaderBuilder readerBuilder;
+    auto reader = std::unique_ptr<Json::CharReader>(readerBuilder.newCharReader());
+    if (!reader->parse(json->data(), json->data() + json->size(), &root, &errs)) {
       throw std::runtime_error("Error parsing JSON: " + errs);
     }
     return root;
   }
 
  private:
-  Json::CharReaderBuilder m_readerBuilder;
-
   static std::string replaceHexadecimalEscape(const std::string& str) {
     static std::regex re("\\\\x");
     return std::regex_replace(str, re, "\\u00");

include/util/scoped_fd.hpp

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <unistd.h>
+
+namespace waybar::util {
+
+class ScopedFd {
+ public:
+  explicit ScopedFd(int fd = -1) : fd_(fd) {}
+  ~ScopedFd() {
+    if (fd_ != -1) {
+      close(fd_);
+    }
+  }
+
+  // ScopedFd is non-copyable
+  ScopedFd(const ScopedFd&) = delete;
+  ScopedFd& operator=(const ScopedFd&) = delete;
+
+  // ScopedFd is moveable
+  ScopedFd(ScopedFd&& other) noexcept : fd_(other.fd_) { other.fd_ = -1; }
+  ScopedFd& operator=(ScopedFd&& other) noexcept {
+    if (this != &other) {
+      if (fd_ != -1) {
+        close(fd_);
+      }
+      fd_ = other.fd_;
+      other.fd_ = -1;
+    }
+    return *this;
+  }
+
+  int get() const { return fd_; }
+
+  operator int() const { return fd_; }
+
+  void reset(int fd = -1) {
+    if (fd_ != -1) {
+      close(fd_);
+    }
+    fd_ = fd;
+  }
+
+  int release() {
+    int fd = fd_;
+    fd_ = -1;
+    return fd;
+  }
+
+ private:
+  int fd_;
+};
+
+}  // namespace waybar::util

include/util/sleeper_thread.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <atomic>
 #include <chrono>
 #include <condition_variable>
 #include <ctime>
@@ -31,8 +32,8 @@ class SleeperThread {
 
   SleeperThread(std::function<void()> func)
       : thread_{[this, func] {
-          while (do_run_) {
+          while (do_run_.load(std::memory_order_relaxed)) {
-            signal_ = false;
+            signal_.store(false, std::memory_order_relaxed);
             func();
           }
         }} {
@@ -42,9 +43,18 @@ class SleeperThread {
   }
 
   SleeperThread& operator=(std::function<void()> func) {
+    if (thread_.joinable()) {
+      stop();
+      thread_.join();
+    }
+    {
+      std::lock_guard<std::mutex> lck(mutex_);
+      do_run_.store(true, std::memory_order_relaxed);
+      signal_.store(false, std::memory_order_relaxed);
+    }
     thread_ = std::thread([this, func] {
-      while (do_run_) {
+      while (do_run_.load(std::memory_order_relaxed)) {
-        signal_ = false;
+        signal_.store(false, std::memory_order_relaxed);
         func();
       }
     });
@@ -56,24 +66,34 @@ class SleeperThread {
     return *this;
   }
 
-  bool isRunning() const { return do_run_; }
+  bool isRunning() const { return do_run_.load(std::memory_order_relaxed); }
 
   auto sleep() {
     std::unique_lock lk(mutex_);
     CancellationGuard cancel_lock;
-    return condvar_.wait(lk, [this] { return signal_ || !do_run_; });
+    return condvar_.wait(lk, [this] {
+      return signal_.load(std::memory_order_relaxed) || !do_run_.load(std::memory_order_relaxed);
+    });
   }
 
   auto sleep_for(std::chrono::system_clock::duration dur) {
     std::unique_lock lk(mutex_);
     CancellationGuard cancel_lock;
+
+    condvar_.wait(lk, [this] {
+      return !is_paused_ || signal_.load(std::memory_order_relaxed) ||
+             !do_run_.load(std::memory_order_relaxed);
+    });
+
     constexpr auto max_time_point = std::chrono::steady_clock::time_point::max();
     auto wait_end = max_time_point;
     auto now = std::chrono::steady_clock::now();
     if (now < max_time_point - dur) {
       wait_end = now + dur;
     }
-    return condvar_.wait_until(lk, wait_end, [this] { return signal_ || !do_run_; });
+    return condvar_.wait_until(lk, wait_end, [this] {
+      return signal_.load(std::memory_order_relaxed) || !do_run_.load(std::memory_order_relaxed);
+    });
   }
 
   auto sleep_until(
@@ -81,22 +101,30 @@ class SleeperThread {
           time_point) {
     std::unique_lock lk(mutex_);
     CancellationGuard cancel_lock;
-    return condvar_.wait_until(lk, time_point, [this] { return signal_ || !do_run_; });
+
+    condvar_.wait(lk, [this] {
+      return !is_paused_ || signal_.load(std::memory_order_relaxed) ||
+             !do_run_.load(std::memory_order_relaxed);
+    });
+
+    return condvar_.wait_until(lk, time_point, [this] {
+      return signal_.load(std::memory_order_relaxed) || !do_run_.load(std::memory_order_relaxed);
+    });
   }
 
   void wake_up() {
     {
       std::lock_guard<std::mutex> lck(mutex_);
-      signal_ = true;
+      signal_.store(true, std::memory_order_relaxed);
     }
     condvar_.notify_all();
   }
 
-  auto stop() {
+  void stop() {
     {
       std::lock_guard<std::mutex> lck(mutex_);
-      signal_ = true;
+      signal_.store(true, std::memory_order_relaxed);
-      do_run_ = false;
+      do_run_.store(false, std::memory_order_relaxed);
     }
     condvar_.notify_all();
     auto handle = thread_.native_handle();
@@ -106,6 +134,17 @@ class SleeperThread {
     }
   }
 
+  void pause() {
+    std::lock_guard<std::mutex> lock(mutex_);
+    is_paused_ = true;
+  }
+
+  void resume() {
+    std::lock_guard<std::mutex> lock(mutex_);
+    is_paused_ = false;
+    condvar_.notify_all();
+  }
+
   ~SleeperThread() {
     connection_.disconnect();
     stop();
@@ -118,9 +157,10 @@ class SleeperThread {
   std::thread thread_;
   std::condition_variable condvar_;
   std::mutex mutex_;
-  bool do_run_ = true;
+  std::atomic<bool> do_run_ = true;
-  bool signal_ = false;
+  std::atomic<bool> signal_ = false;
   sigc::connection connection_;
+  bool is_paused_{false};
 };
 
 }  // namespace waybar::util

man/waybar-battery.5.scd

@@ -182,6 +182,7 @@ Every entry in the *events* object consists of a *<event-name>* (typeof: *string
 
 - *on-<status>-<state>*
 - *on-<status>-<capacity>*
+- *on-<status>*
 
 Where:
 
@@ -203,7 +204,9 @@ Where:
 	"events": {
 		"on-discharging-warning": "notify-send -u normal 'Low Battery'",
 		"on-discharging-critical": "notify-send -u critical 'Very Low Battery'",
-		"on-charging-100": "notify-send -u normal 'Battery Full!'"
+		"on-charging-100": "notify-send -u normal 'Battery Full!'",
+		"on-discharging": "notify-send -u normal 'Power Switch' Discharging",
+		"on-charging": "notify-send -u normal 'Power Switch' Charging'"
 	},
 	"format": "{capacity}% {icon}",
 	"format-icons": ["", "", "", "", ""],

man/waybar-clock.5.scd

@@ -204,7 +204,7 @@ View all valid format options in *strftime(3)* or have a look https://en.cpprefe
 ```
 "clock": {
 	"format": "{:%H:%M}  ",
-	"format-alt": "{:%A, %B %d, %Y (%R)}  ",
+	"format-alt": "{:%A, %B %d, %Y (%R)} 󰃰 ",
 	"tooltip-format": "<tt><small>{calendar}</small></tt>",
 	"calendar": {
 		"mode"          : "year",
@@ -259,7 +259,19 @@ View all valid format options in *strftime(3)* or have a look https://en.cpprefe
 	"tooltip-format": "{tz_list}"
 }
 ```
+5. Simple calendar tooltip
 
+```
+"clock": {
+"format": "{:%H:%M}",
+"tooltip-format": "<tt>{calendar}</tt>",
+"calendar": {
+"format": {
+"today": "<span color='#ffcc66'><b>{}</b></span>"
+}
+}
+}
+```
 # STYLE
 
 - *#clock*
@@ -287,7 +299,7 @@ Example of working config
 ```
 "clock": {
 	"format": "{:%H:%M}  ",
-	"format-alt": "{:%A, %B %d, %Y (%R)}  ",
+	"format-alt": "{:%A, %B %d, %Y (%R)} 󰃰 ",
 	"tooltip-format": "\n<span size='9pt' font='WenQuanYi Zen Hei Mono'>{calendar}</span>",
 	"calendar": {
 		"mode"          : "year",

man/waybar-gamemode.5.scd

@@ -43,7 +43,7 @@ Feral Gamemode optimizations.
 
 *glyph*: ++
 	typeof: string ++
-	default:  ++
+	default: 󰊴 ++
 	The string icon to display. Only visible if *use-icon* is set to false.
 
 *icon-name*: ++
@@ -82,7 +82,7 @@ Feral Gamemode optimizations.
 "gamemode": {
 	"format": "{glyph}",
 	"format-alt": "{glyph} {count}",
-	"glyph": "",
+	"glyph": "󰊴",
 	"hide-not-running": true,
 	"use-icon": true,
 	"icon-name": "input-gaming-symbolic",

man/waybar-hyprland-workspaces.5.scd

@@ -130,6 +130,11 @@ This setting is ignored if *workspace-taskbar.enable* is set to true.
 	Otherwise, the workspace will open on the monitor where it was previously assigned.
 	Analog to using `focusworkspaceoncurrentmonitor` dispatcher instead of `workspace` in Hyprland.
 
+*enable-bar-scroll*: ++
+	typeof: bool ++
+	default: false ++
+	If set to false, you can't scroll to cycle throughout workspaces from the entire bar. If set to true this behaviour is enabled.
+
 *ignore-workspaces*: ++
 	typeof: array ++
 	default: [] ++

man/waybar-image.5.scd

@@ -26,7 +26,8 @@ The *image* module displays an image from a path.
 *interval*: ++
 	typeof: integer or float ++
 	The interval (in seconds) to re-render the image. ++
-	Minimum value is 0.001 (1ms). Values smaller than 1ms will be set to 1ms. ++
+	If set to a positive value, the minimum is 0.001 (1ms). Values smaller than 1ms will be set to 1ms. ++
+	Zero or negative values are treated as "once". ++
 	This is useful if the contents of *path* changes. ++
 	If no *interval* is defined, the image will only be rendered once.
 

man/waybar-memory.5.scd

@@ -102,23 +102,29 @@ Addressed by *memory*
 	default: false ++
 	Enables this module to consume all left over space dynamically.
 
+*unit*: ++
+	typeof: string ++
+	default: GiB ++
+	Used to specify unit for total, swapTotal, used, swapUsed, avail, swapAvail,
+	and swapState. Accepts B, kB, kiB, MB, MiB, GB, GiB, TB, and TiB.
+
 # FORMAT REPLACEMENTS
 
 *{percentage}*: Percentage of memory in use.
 
 *{swapPercentage}*: Percentage of swap in use.
 
-*{total}*: Amount of total memory available in GiB.
+*{total}*: Amount of total memory available. Defaults to GiB.
 
-*{swapTotal}*: Amount of total swap available in GiB.
+*{swapTotal}*: Amount of total swap available. Defaults to GiB.
 
-*{used}*: Amount of used memory in GiB.
+*{used}*: Amount of used memory. Defaults to GiB.
 
-*{swapUsed}*: Amount of used swap in GiB.
+*{swapUsed}*: Amount of used swap. Defaults to GiB.
 
-*{avail}*: Amount of available memory in GiB.
+*{avail}*: Amount of available memory. Defaults to GiB.
 
-*{swapAvail}*: Amount of available swap in GiB.
+*{swapAvail}*: Amount of available swap. Defaults to GiB.
 
 *{swapState}*: Signals if swap is activated or not
 

man/waybar-pulseaudio.5.scd

@@ -97,7 +97,11 @@ Additionally, you can control the volume by scrolling *up* or *down* while the c
 
 *reverse-scrolling*: ++
 	typeof: bool ++
-	Option to reverse the scroll direction.
+	Option to reverse the scroll direction for touchpads.
+
+*reverse-mouse-scrolling*: ++
+	typeof: bool ++
+	Option to reverse the scroll direction for mice.
 
 *tooltip*: ++
 	typeof: bool ++
@@ -174,8 +178,8 @@ to be selected when the corresponding audio device is muted. This applies to *de
 		"alsa_output.pci-0000_00_1f.3.analog-stereo": "",
 		"alsa_output.pci-0000_00_1f.3.analog-stereo-muted": "",
 		"headphone": "",
-		"hands-free": "",
+		"hands-free": "󰂑",
-		"headset": "",
+		"headset": "󰂑",
 		"phone": "",
 		"phone-muted": "",
 		"portable": "",

man/waybar-river-mode.5.scd

@@ -87,7 +87,7 @@ Addressed by *river/mode*
 
 ```
 "river/mode": {
-	"format": " {}"
+	"format": " {}"
 }
 ```
 

man/waybar-sway-mode.5.scd

@@ -92,7 +92,7 @@ Addressed by *sway/mode*
 
 ```
 "sway/mode": {
-	"format": " {}",
+	"format": " {}",
 	"max-length": 50
 }
 ```

man/waybar-systemd-failed-units.5.scd

@@ -19,7 +19,7 @@ Addressed by *systemd-failed-units*
 
 *format-ok*: ++
 	typeof: string ++
-	This format is used when there is no failing units.
+	This format is used when there are no failing units.
 
 *user*: ++
 	typeof: bool ++
@@ -34,15 +34,30 @@ Addressed by *systemd-failed-units*
 *hide-on-ok*: ++
 	typeof: bool ++
 	default: *true* ++
-	Option to hide this module when there is no failing units.
+	Option to hide this module when there are no failed units.
+
+*tooltip-format*: ++
+	typeof: string ++
+	default: *System: {system_state}\nUser: {user_state}\nFailed units ({nr_failed}):\n{failed_units_list}* ++
+	Tooltip format shown when there are failed units.
+
+*tooltip-format-ok*: ++
+	typeof: string ++
+	default: *System: {system_state}\nUser: {user_state}* ++
+	Tooltip format used when there are no failed units.
+
+*tooltip-unit-format*: ++
+	typeof: string ++
+	default: *{name}: {description}* ++
+	Format used to render each failed unit inside the tooltip. Each item is prefixed with a bullet.
 
 *menu*: ++
 	typeof: string ++
-	Action that popups the menu.
+	Action that pops up the menu.
 
 *menu-file*: ++
 	typeof: string ++
-	Location of the menu descriptor file. There need to be an element of type
+	Location of the menu descriptor file. There needs to be an element of type
 	GtkMenu with id *menu*
 
 *menu-actions*: ++
@@ -62,11 +77,23 @@ Addressed by *systemd-failed-units*
 
 *{nr_failed}*: Number of total failed units.
 
-*{systemd_state}:* State of the systemd system session
+*{system_state}:* State of the systemd system session.
 
-*{user_state}:* State of the systemd user session
+*{user_state}:* State of the systemd user session.
 
-*{overall_state}:* Overall state of the systemd and user session. ("Ok" or "Degraded")
+*{overall_state}:* Overall state of the systemd and user session. ("ok" or "degraded")
+
+*{failed_units_list}:* Bulleted list of failed units using *tooltip-unit-format*. Empty when
+there are no failed units.
+
+The *tooltip-unit-format* string supports the following replacements:
+
+*{name}*: Unit name ++
+*{description}*: Unit description ++
+*{load_state}*: Unit load state ++
+*{active_state}*: Unit active state ++
+*{sub_state}*: Unit sub state ++
+*{scope}*: Either *system* or *user* depending on where the unit originated
 
 # EXAMPLES
 
@@ -77,6 +104,8 @@ Addressed by *systemd-failed-units*
 	"format-ok": "✓",
 	"system": true,
 	"user": false,
+	"tooltip-format": "{nr_failed} failed units:\n{failed_units_list}",
+	"tooltip-unit-format": "{scope}: {name} ({active_state})",
 }
 ```
 

man/waybar-wireplumber.5.scd

@@ -128,7 +128,7 @@ The *wireplumber* module displays the current volume reported by WirePlumber.
 ```
 "wireplumber#sink": {
     "format": "{volume}% {icon}",
-    "format-muted": "",
+    "format-muted": "󰅶",
     "format-icons": ["", "", ""],
     "on-click": "helvum",
     "on-click-right": "wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle",

man/waybar.5.scd.in

@@ -36,7 +36,7 @@ The visual display elements for waybar use a CSS stylesheet, see *waybar-styles(
 *expand-right* ++
 	typeof: bool ++
 	default: false ++
-	Enables the modules-left to consume all left over space dynamically.
+	Enables the modules-right to consume all left over space dynamically.
 
 *layer* ++
 	typeof: string ++
@@ -363,6 +363,11 @@ A group may hide all but one element, showing them only on mouse hover. In order
 	default: false ++
 	Whether left click should reveal the content rather than mouse over. Note that grouped modules may still process their own on-click events.
 
+*start-expanded*: ++
+	typeof: bool ++
+	default: false ++
+	Defines whether the drawer should initialize in an expanded state.
+
 *transition-left-to-right*: ++
 	typeof: bool ++
 	default: true ++

meson.build

@@ -1,6 +1,6 @@
 project(
     'waybar', 'cpp', 'c',
-    version: '0.14.0',
+    version: '0.15.0',
     license: 'MIT',
     meson_version: '>= 0.59.0',
     default_options : [
@@ -185,7 +185,8 @@ src_files = files(
     'src/util/gtk_icon.cpp',
     'src/util/icon_loader.cpp',
     'src/util/regex_collection.cpp',
-    'src/util/css_reload_helper.cpp'
+    'src/util/css_reload_helper.cpp',
+    'src/util/transform_8bit_to_rgba.cpp'
 )
 
 man_files = files(

nix/default.nix

@@ -6,13 +6,13 @@
 }:
 let
   libcava = rec {
-    version = "0.10.7-beta";
+    version = "0.10.7";
     src = pkgs.fetchFromGitHub {
       owner = "LukashonakV";
       repo = "cava";
       # NOTE: Needs to match the cava.wrap
-      tag = "v${version}";
+      tag = "${version}";
-      hash = "sha256-IX1B375gTwVDRjpRfwKGuzTAZOV2pgDWzUd4bW2cTDU=";
+      hash = "sha256-zkyj1vBzHtoypX4Bxdh1Vmwh967DKKxN751v79hzmgQ=";
     };
   };
 in

resources/config.jsonc

@@ -128,7 +128,7 @@
         "critical-threshold": 80,
         // "format-critical": "{temperatureC}°C {icon}",
         "format": "{temperatureC}°C {icon}",
-        "format-icons": ["", "", ""]
+        "format-icons": ["󰉬", "", "󰉪"]
     },
     "backlight": {
         // "device": "acpi_video1",
@@ -143,7 +143,7 @@
         },
         "format": "{capacity}% {icon}",
         "format-full": "{capacity}% {icon}",
-        "format-charging": "{capacity}% ",
+        "format-charging": "{capacity}% 󰃨",
         "format-plugged": "{capacity}% ",
         "format-alt": "{time} {icon}",
         // "format-good": "", // An empty format will hide the module
@@ -167,9 +167,9 @@
     "network": {
         // "interface": "wlp2*", // (Optional) To force the use of this interface
         "format-wifi": "{essid} ({signalStrength}%) ",
-        "format-ethernet": "{ipaddr}/{cidr} ",
+        "format-ethernet": "{ipaddr}/{cidr} 󰊗",
-        "tooltip-format": "{ifname} via {gwaddr} ",
+        "tooltip-format": "{ifname} via {gwaddr} 󰊗",
-        "format-linked": "{ifname} (No IP) ",
+        "format-linked": "{ifname} (No IP) 󰊗",
         "format-disconnected": "Disconnected ⚠",
         "format-alt": "{ifname}: {ipaddr}/{cidr}"
     },
@@ -177,14 +177,14 @@
         // "scroll-step": 1, // %, can be a float
         "format": "{volume}% {icon} {format_source}",
         "format-bluetooth": "{volume}% {icon} {format_source}",
-        "format-bluetooth-muted": " {icon} {format_source}",
+        "format-bluetooth-muted": "󰅶 {icon} {format_source}",
-        "format-muted": " {format_source}",
+        "format-muted": "󰅶 {format_source}",
         "format-source": "{volume}% ",
         "format-source-muted": "",
         "format-icons": {
             "headphone": "",
-            "hands-free": "",
+            "hands-free": "󰂑",
-            "headset": "",
+            "headset": "󰂑",
             "phone": "",
             "portable": "",
             "car": "",

src/AAppIconLabel.cpp

@@ -33,9 +33,7 @@ std::string toLowerCase(const std::string& input) {
 
 std::optional<std::string> getFileBySuffix(const std::string& dir, const std::string& suffix,
                                            bool check_lower_case) {
-  if (!std::filesystem::exists(dir)) {
+  try {
-    return {};
-  }
     for (const auto& entry : std::filesystem::recursive_directory_iterator(dir)) {
       if (entry.is_regular_file()) {
         std::string filename = entry.path().filename().string();
@@ -49,6 +47,8 @@ std::optional<std::string> getFileBySuffix(const std::string& dir, const std::st
         }
       }
     }
+  } catch (const std::filesystem::filesystem_error&) {
+  }
 
   return {};
 }
@@ -151,19 +151,24 @@ void AAppIconLabel::updateAppIconName(const std::string& app_identifier,
 }
 
 void AAppIconLabel::updateAppIcon() {
-  if (update_app_icon_) {
+  if (update_app_icon_ || (!iconEnabled() && image_.get_visible())) {
     update_app_icon_ = false;
     if (app_icon_name_.empty()) {
       image_.set_visible(false);
     } else if (app_icon_name_.front() == '/') {
-      auto pixbuf = Gdk::Pixbuf::create_from_file(app_icon_name_);
+      try {
         int scaled_icon_size = app_icon_size_ * image_.get_scale_factor();
-      pixbuf = Gdk::Pixbuf::create_from_file(app_icon_name_, scaled_icon_size, scaled_icon_size);
+        auto pixbuf =
+            Gdk::Pixbuf::create_from_file(app_icon_name_, scaled_icon_size, scaled_icon_size);
 
         auto surface = Gdk::Cairo::create_surface_from_pixbuf(pixbuf, image_.get_scale_factor(),
                                                               image_.get_window());
         image_.set(surface);
         image_.set_visible(true);
+      } catch (const Glib::Exception& e) {
+        spdlog::warn("Failed to load app icon {}: {}", app_icon_name_, std::string(e.what()));
+        image_.set_visible(false);
+      }
     } else {
       image_.set_from_icon_name(app_icon_name_, Gtk::ICON_SIZE_INVALID);
       image_.set_visible(true);

src/ALabel.cpp

@@ -26,7 +26,7 @@ ALabel::ALabel(const Json::Value& config, const std::string& name, const std::st
                     : std::chrono::milliseconds(
                           (config_["interval"].isNumeric()
                                ? std::max(1L,  // Minimum 1ms due to millisecond precision
-                                          static_cast<long>(config_["interval"].asDouble()) * 1000)
+                                          static_cast<long>(config_["interval"].asDouble() * 1000))
                                : 1000 * (long)interval))),
       default_format_(format_) {
   label_.set_name(name);
@@ -91,13 +91,17 @@ ALabel::ALabel(const Json::Value& config, const std::string& name, const std::st
 
       // Make the GtkBuilder and check for errors in his parsing
       if (gtk_builder_add_from_string(builder, fileContent.str().c_str(), -1, nullptr) == 0U) {
+        g_object_unref(builder);
         throw std::runtime_error("Error found in the file " + menuFile);
       }
 
       menu_ = gtk_builder_get_object(builder, "menu");
       if (menu_ == nullptr) {
+        g_object_unref(builder);
         throw std::runtime_error("Failed to get 'menu' object from GtkBuilder");
       }
+      // Keep the menu alive after dropping the transient GtkBuilder.
+      g_object_ref(menu_);
       submenus_ = std::map<std::string, GtkMenuItem*>();
       menuActionsMap_ = std::map<std::string, std::string>();
 
@@ -105,11 +109,17 @@ ALabel::ALabel(const Json::Value& config, const std::string& name, const std::st
       for (Json::Value::const_iterator it = config_["menu-actions"].begin();
            it != config_["menu-actions"].end(); ++it) {
         std::string key = it.key().asString();
-        submenus_[key] = GTK_MENU_ITEM(gtk_builder_get_object(builder, key.c_str()));
+        auto* item = gtk_builder_get_object(builder, key.c_str());
+        if (item == nullptr) {
+          spdlog::warn("Menu item '{}' not found in builder file", key);
+          continue;
+        }
+        submenus_[key] = GTK_MENU_ITEM(item);
         menuActionsMap_[key] = it->asString();
         g_signal_connect(submenus_[key], "activate", G_CALLBACK(handleGtkMenuEvent),
                          (gpointer)menuActionsMap_[key].c_str());
       }
+      g_object_unref(builder);
     } catch (std::runtime_error& e) {
       spdlog::warn("Error while creating the menu : {}. Menu popup not activated.", e.what());
     }
@@ -141,7 +151,8 @@ std::string ALabel::getIcon(uint16_t percentage, const std::string& alt, uint16_
   if (format_icons.isArray()) {
     auto size = format_icons.size();
     if (size != 0U) {
-      auto idx = std::clamp(percentage / ((max == 0 ? 100 : max) / size), 0U, size - 1);
+      auto divisor = std::max(1U, (max == 0 ? 100U : static_cast<unsigned>(max)) / size);
+      auto idx = std::clamp(percentage / divisor, 0U, size - 1);
       format_icons = format_icons[idx];
     }
   }
@@ -167,7 +178,8 @@ std::string ALabel::getIcon(uint16_t percentage, const std::vector<std::string>&
   if (format_icons.isArray()) {
     auto size = format_icons.size();
     if (size != 0U) {
-      auto idx = std::clamp(percentage / ((max == 0 ? 100 : max) / size), 0U, size - 1);
+      auto divisor = std::max(1U, (max == 0 ? 100U : static_cast<unsigned>(max)) / size);
+      auto idx = std::clamp(percentage / divisor, 0U, size - 1);
       format_icons = format_icons[idx];
     }
   }
@@ -190,7 +202,7 @@ bool waybar::ALabel::handleToggle(GdkEventButton* const& e) {
 }
 
 void ALabel::handleGtkMenuEvent(GtkMenuItem* /*menuitem*/, gpointer data) {
-  waybar::util::command::res res = waybar::util::command::exec((char*)data, "GtkMenu");
+  waybar::util::command::forkExec((char*)data, "GtkMenu");
 }
 
 std::string ALabel::getState(uint8_t value, bool lesser) {

src/AModule.cpp

@@ -17,10 +17,14 @@ AModule::AModule(const Json::Value& config, const std::string& name, const std::
       isTooltip{config_["tooltip"].isBool() ? config_["tooltip"].asBool() : true},
       isExpand{config_["expand"].isBool() ? config_["expand"].asBool() : false},
       distance_scrolled_y_(0.0),
-      distance_scrolled_x_(0.0) {
+      distance_scrolled_x_(0.0),
+      cursor_timeout_conn_() {
   // Configure module action Map
   const Json::Value actions{config_["actions"]};
 
+  disable_on_sleep_ =
+      config_["disable-on-sleep"].isBool() ? config_["disable-on-sleep"].asBool() : false;
+
   for (Json::Value::const_iterator it = actions.begin(); it != actions.end(); ++it) {
     if (it.key().isString() && it->isString())
       if (!eventActionMap_.contains(it.key().asString())) {
@@ -83,11 +87,18 @@ AModule::AModule(const Json::Value& config, const std::string& name, const std::
 }
 
 AModule::~AModule() {
+  if (cursor_timeout_conn_.connected()) {
+    cursor_timeout_conn_.disconnect();
+  }
   for (const auto& pid : pid_children_) {
     if (pid != -1) {
       killpg(pid, SIGTERM);
     }
   }
+  if (menu_ != nullptr) {
+    g_object_unref(menu_);
+    menu_ = nullptr;
+  }
 }
 
 auto AModule::update() -> void {
@@ -114,7 +125,7 @@ void AModule::setCursor(Gdk::CursorType const& c) {
   } else {
     // window may not be accessible yet, in this case,
     // schedule another call for setting the cursor in 1 sec
-    Glib::signal_timeout().connect_seconds(
+    cursor_timeout_conn_ = Glib::signal_timeout().connect_seconds(
         [this, c]() {
           setCursor(c);
           return false;
@@ -166,9 +177,9 @@ bool AModule::handleUserEvent(GdkEventButton* const& e) {
   }
 
   // Check that a menu has been configured
-  if (config_["menu"].isString()) {
+  if (rec != eventMap_.cend() && config_["menu"].isString()) {
     // Check if the event is the one specified for the "menu" option
-    if (rec->second == config_["menu"].asString()) {
+    if (rec->second == config_["menu"].asString() && menu_ != nullptr) {
       // Popup the menu
       gtk_widget_show_all(GTK_WIDGET(menu_));
       gtk_menu_popup_at_pointer(GTK_MENU(menu_), reinterpret_cast<GdkEvent*>(e));

src/bar.cpp

@@ -229,7 +229,8 @@ waybar::Bar::Bar(struct waybar_output* w_output, const Json::Value& w_config)
   gtk_layer_init_for_window(gtk_window);
   gtk_layer_set_keyboard_mode(gtk_window, GTK_LAYER_SHELL_KEYBOARD_MODE_NONE);
   gtk_layer_set_monitor(gtk_window, output->monitor->gobj());
-  gtk_layer_set_namespace(gtk_window, "waybar");
+  gtk_layer_set_namespace(gtk_window,
+                          config["name"].isString() ? config["name"].asCString() : "waybar");
 
   gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_LEFT, margins_.left);
   gtk_layer_set_margin(gtk_window, GTK_LAYER_SHELL_EDGE_RIGHT, margins_.right);
@@ -262,6 +263,16 @@ waybar::Bar::Bar(struct waybar_output* w_output, const Json::Value& w_config)
 
   window.signal_map_event().connect_notify(sigc::mem_fun(*this, &Bar::onMap));
 
+  window.signal_unmap().connect([this]() {
+    spdlog::debug("Output {} unmapped (DPMS off), suspending modules", output->name);
+    toggleSuspend(true);
+  });
+
+  window.signal_map().connect([this]() {
+    spdlog::debug("Output {} mapped (DPMS on), resuming modules", output->name);
+    toggleSuspend(false);
+  });
+
 #if HAVE_SWAY
   if (auto ipc = config["ipc"]; ipc.isBool() && ipc.asBool()) {
     bar_id = Client::inst()->bar_id;
@@ -540,13 +551,15 @@ void waybar::Bar::getModules(const Factory& factory, const std::string& pos,
           auto vertical = (group != nullptr ? group->getBox().get_orientation()
                                             : box_.get_orientation()) == Gtk::ORIENTATION_VERTICAL;
 
-          auto group_config = config[ref];
+          const Json::Value& group_config = config[ref];
           if (group_config["modules"].isNull()) {
             spdlog::warn("Group definition '{}' has not been found, group will be hidden", ref);
           }
-          auto* group_module = new waybar::Group(id_name, class_name, group_config, vertical);
+          auto group_module =
-          getModules(factory, ref, group_module);
+              std::make_unique<waybar::Group>(id_name, class_name, group_config, vertical);
-          module = group_module;
+
+          getModules(factory, ref, group_module.get());
+          module = group_module.release();
         } else {
           module = factory.makeModule(ref, pos);
         }
@@ -693,3 +706,22 @@ void waybar::Bar::configureGlobalOffset(int width, int height) {
 void waybar::Bar::onOutputGeometryChanged() {
   configureGlobalOffset(window.get_width(), window.get_height());
 }
+
+void waybar::Bar::toggleSuspend(bool suspend) {
+  auto process_modules = [suspend](Gtk::Box& module_box) {
+    for (auto* widget : module_box.get_children()) {
+      auto* module = dynamic_cast<waybar::AModule*>(widget);
+      if (module && module->shouldSuspend()) {
+        if (suspend) {
+          module->suspend();
+        } else {
+          module->resume();
+        }
+      }
+    }
+  };
+
+  process_modules(left_);
+  process_modules(center_);
+  process_modules(right_);
+}

src/client.cpp

@@ -10,6 +10,7 @@
 #include "idle-inhibit-unstable-v1-client-protocol.h"
 #include "util/clara.hpp"
 #include "util/format.hpp"
+#include "util/hex_checker.hpp"
 
 waybar::Client* waybar::Client::inst() {
   static auto* c = new Client();
@@ -19,11 +20,23 @@ waybar::Client *waybar::Client::inst() {
 void waybar::Client::handleGlobal(void* data, struct wl_registry* registry, uint32_t name,
                                   const char* interface, uint32_t version) {
   auto* client = static_cast<Client*>(data);
+
   if (strcmp(interface, zxdg_output_manager_v1_interface.name) == 0 &&
       version >= ZXDG_OUTPUT_V1_NAME_SINCE_VERSION) {
+    if (client->xdg_output_manager != nullptr) {
+      zxdg_output_manager_v1_destroy(client->xdg_output_manager);
+      client->xdg_output_manager = nullptr;
+    }
+
     client->xdg_output_manager = static_cast<struct zxdg_output_manager_v1*>(wl_registry_bind(
         registry, name, &zxdg_output_manager_v1_interface, ZXDG_OUTPUT_V1_NAME_SINCE_VERSION));
+
   } else if (strcmp(interface, zwp_idle_inhibit_manager_v1_interface.name) == 0) {
+    if (client->idle_inhibit_manager != nullptr) {
+      zwp_idle_inhibit_manager_v1_destroy(client->idle_inhibit_manager);
+      client->idle_inhibit_manager = nullptr;
+    }
+
     client->idle_inhibit_manager = static_cast<struct zwp_idle_inhibit_manager_v1*>(
         wl_registry_bind(registry, name, &zwp_idle_inhibit_manager_v1_interface, 1));
   }
@@ -194,11 +207,15 @@ auto waybar::Client::setupCss(const std::string &css_file) -> void {
   }
 
   css_provider_ = Gtk::CssProvider::create();
+  auto [modified_css, was_transformed] = transform_8bit_to_hex(css_file);
+  if (was_transformed) {
+    css_provider_->load_from_data(modified_css);
+  } else {
     if (!css_provider_->load_from_path(css_file)) {
       css_provider_.reset();
       throw std::runtime_error("Can't open style file");
     }
-
+  }
   Gtk::StyleContext::add_provider_for_screen(screen, css_provider_,
                                              GTK_STYLE_PROVIDER_PRIORITY_USER);
 }

src/group.cpp

@@ -64,11 +64,19 @@ Group::Group(const std::string& name, const std::string& id, const Json::Value&
                                     : true);
     click_to_reveal = drawer_config["click-to-reveal"].asBool();
 
+    const bool start_expanded =
+        (drawer_config["start-expanded"].isBool() ? drawer_config["start-expanded"].asBool()
+                                                  : false);
+
     auto transition_type = getPreferredTransitionType(vertical);
 
     revealer.set_transition_type(transition_type);
     revealer.set_transition_duration(transition_duration);
-    revealer.set_reveal_child(false);
+    revealer.set_reveal_child(start_expanded);
+
+    if (start_expanded) {
+      box.set_state_flags(Gtk::StateFlags::STATE_FLAG_PRELIGHT);
+    }
 
     revealer.get_style_context()->add_class("drawer");
 
@@ -124,6 +132,11 @@ auto Group::update() -> void {
   // noop
 }
 
+bool Group::handleScroll(GdkEventScroll* e) {
+  // no scroll.
+  return true;
+}
+
 Gtk::Box& Group::getBox() { return is_drawer ? (is_first_widget ? box : revealer_box) : box; }
 
 void Group::addWidget(Gtk::Widget& widget) {

src/main.cpp

@@ -33,7 +33,10 @@ static void writeSignalToPipe(int signum) {
 // to `signal_handler`.
 static void catchSignals(waybar::SafeSignal<int>& signal_handler) {
   int fd[2];
-  pipe(fd);
+  if (pipe(fd) != 0) {
+    spdlog::error("Failed to create signal pipe: {}", strerror(errno));
+    return;
+  }
 
   int signal_pipe_read_fd = fd[0];
   signal_pipe_write_fd = fd[1];
@@ -137,15 +140,16 @@ static void handleSignalMainThread(int signum, bool& reload) {
       break;
     case SIGCHLD:
       spdlog::debug("Received SIGCHLD in signalThread");
-      if (!reap.empty()) {
+      {
-        reap_mtx.lock();
+        std::lock_guard<std::mutex> lock(reap_mtx);
-        for (auto it = reap.begin(); it != reap.end(); ++it) {
+        for (auto it = reap.begin(); it != reap.end();) {
           if (waitpid(*it, nullptr, WNOHANG) == *it) {
             spdlog::debug("Reaped child with PID: {}", *it);
             it = reap.erase(it);
+          } else {
+            ++it;
           }
         }
-        reap_mtx.unlock();
       }
       break;
     default:

src/modules/backlight.cpp

@@ -58,11 +58,11 @@ auto waybar::modules::Backlight::update() -> void {
           tooltip_format = config_["tooltip-format"].asString();
         }
         if (!tooltip_format.empty()) {
-          label_.set_tooltip_text(fmt::format(fmt::runtime(tooltip_format),
+          label_.set_tooltip_markup(fmt::format(fmt::runtime(tooltip_format),
                                                 fmt::arg("percent", percent),
                                                 fmt::arg("icon", getIcon(percent))));
         } else {
-          label_.set_tooltip_text(desc);
+          label_.set_tooltip_markup(desc);
         }
       }
     } else {

src/modules/battery.cpp

@@ -117,17 +117,16 @@ void waybar::modules::Battery::refreshBatteries() {
       if (((bat_defined && dir_name == config_["bat"].asString()) || !bat_defined) &&
           (fs::exists(node.path() / "capacity") || fs::exists(node.path() / "charge_now")) &&
           fs::exists(node.path() / "uevent") &&
-          (fs::exists(node.path() / "status") || bat_compatibility) &&
+          (fs::exists(node.path() / "status") || bat_compatibility)) {
-          fs::exists(node.path() / "type")) {
         std::string type;
-        std::ifstream(node.path() / "type") >> type;
+        if (std::ifstream{node.path() / "type"} >> type && !type.compare("Battery")) {
-
-        if (!type.compare("Battery")) {
           // Ignore non-system power supplies unless explicitly requested
-          if (!bat_defined && fs::exists(node.path() / "scope")) {
+          if (!bat_defined) {
             std::string scope;
-            std::ifstream(node.path() / "scope") >> scope;
+            // for hotplug-in device, access it is always unstable because you may remove the
-            if (g_ascii_strcasecmp(scope.data(), "device") == 0) {
+            // device anytime so just allow failure happen and do nothing
+            if (std::ifstream{node.path() / "scope"} >> scope &&
+                g_ascii_strcasecmp(scope.data(), "device") == 0) {
               continue;
             }
           }
@@ -139,7 +138,9 @@ void waybar::modules::Battery::refreshBatteries() {
             auto event_path = (node.path() / "uevent");
             auto wd = inotify_add_watch(battery_watch_fd_, event_path.c_str(), IN_ACCESS);
             if (wd < 0) {
-              throw std::runtime_error("Could not watch events for " + node.path().string());
+              spdlog::warn("Could not watch events for {} (device may have been removed)",
+                           node.path().string());
+              continue;
             }
             batteries_[node.path()] = wd;
           }
@@ -152,7 +153,7 @@ void waybar::modules::Battery::refreshBatteries() {
       }
     }
   } catch (fs::filesystem_error& e) {
-    throw std::runtime_error(e.what());
+    spdlog::warn("Battery directory tracking failed: {}", e.what());
   }
   if (warnFirstTime_ && batteries_.empty()) {
     if (config_["bat"].isString()) {
@@ -273,11 +274,11 @@ waybar::modules::Battery::getInfos() {
       auto bat = item.first;
       std::string _status;
 
-      /* Check for adapter status if battery is not available */
+      {
-      if (!std::ifstream(bat / "status")) {
+        std::ifstream f{bat / "status"};
+        if (!std::getline(f, _status)) {
           std::getline(std::ifstream(adapter_ / "status"), _status);
-      } else {
+        }
-        std::getline(std::ifstream(bat / "status"), _status);
       }
 
       // Some battery will report current and charge in μA/μAh.
@@ -286,64 +287,64 @@ waybar::modules::Battery::getInfos() {
       uint32_t current_now = 0;
       int32_t _current_now_int = 0;
       bool current_now_exists = false;
-      if (fs::exists(bat / "current_now")) {
+      if (std::ifstream current_now_f{bat / "current_now"}) {
         current_now_exists = true;
-        std::ifstream(bat / "current_now") >> _current_now_int;
+        current_now_f >> _current_now_int;
-      } else if (fs::exists(bat / "current_avg")) {
+      } else if (std::ifstream current_avg_f{bat / "current_avg"}) {
         current_now_exists = true;
-        std::ifstream(bat / "current_avg") >> _current_now_int;
+        current_avg_f >> _current_now_int;
       }
       // Documentation ABI allows a negative value when discharging, positive
       // value when charging.
       current_now = std::abs(_current_now_int);
 
-      if (fs::exists(bat / "time_to_empty_now")) {
+      if (std::ifstream f{bat / "time_to_empty_now"}) {
         time_to_empty_now_exists = true;
-        std::ifstream(bat / "time_to_empty_now") >> time_to_empty_now;
+        f >> time_to_empty_now;
       }
 
-      if (fs::exists(bat / "time_to_full_now")) {
+      if (std::ifstream f{bat / "time_to_full_now"}) {
         time_to_full_now_exists = true;
-        std::ifstream(bat / "time_to_full_now") >> time_to_full_now;
+        f >> time_to_full_now;
       }
 
       uint32_t voltage_now = 0;
       bool voltage_now_exists = false;
-      if (fs::exists(bat / "voltage_now")) {
+      if (std::ifstream voltage_now_f{bat / "voltage_now"}) {
         voltage_now_exists = true;
-        std::ifstream(bat / "voltage_now") >> voltage_now;
+        voltage_now_f >> voltage_now;
-      } else if (fs::exists(bat / "voltage_avg")) {
+      } else if (std::ifstream voltage_avg_f{bat / "voltage_avg"}) {
         voltage_now_exists = true;
-        std::ifstream(bat / "voltage_avg") >> voltage_now;
+        voltage_avg_f >> voltage_now;
       }
 
       uint32_t charge_full = 0;
       bool charge_full_exists = false;
-      if (fs::exists(bat / "charge_full")) {
+      if (std::ifstream f{bat / "charge_full"}) {
         charge_full_exists = true;
-        std::ifstream(bat / "charge_full") >> charge_full;
+        f >> charge_full;
       }
 
       uint32_t charge_full_design = 0;
       bool charge_full_design_exists = false;
-      if (fs::exists(bat / "charge_full_design")) {
+      if (std::ifstream f{bat / "charge_full_design"}) {
         charge_full_design_exists = true;
-        std::ifstream(bat / "charge_full_design") >> charge_full_design;
+        f >> charge_full_design;
       }
 
       uint32_t charge_now = 0;
       bool charge_now_exists = false;
-      if (fs::exists(bat / "charge_now")) {
+      if (std::ifstream f{bat / "charge_now"}) {
         charge_now_exists = true;
-        std::ifstream(bat / "charge_now") >> charge_now;
+        f >> charge_now;
       }
 
       uint32_t power_now = 0;
       int32_t _power_now_int = 0;
       bool power_now_exists = false;
-      if (fs::exists(bat / "power_now")) {
+      if (std::ifstream f{bat / "power_now"}) {
         power_now_exists = true;
-        std::ifstream(bat / "power_now") >> _power_now_int;
+        f >> _power_now_int;
       }
       // Some drivers (example: Qualcomm) exposes use a negative value when
       // discharging, positive value when charging.
@@ -351,28 +352,28 @@ waybar::modules::Battery::getInfos() {
 
       uint32_t energy_now = 0;
       bool energy_now_exists = false;
-      if (fs::exists(bat / "energy_now")) {
+      if (std::ifstream f{bat / "energy_now"}) {
         energy_now_exists = true;
-        std::ifstream(bat / "energy_now") >> energy_now;
+        f >> energy_now;
       }
 
       uint32_t energy_full = 0;
       bool energy_full_exists = false;
-      if (fs::exists(bat / "energy_full")) {
+      if (std::ifstream f{bat / "energy_full"}) {
         energy_full_exists = true;
-        std::ifstream(bat / "energy_full") >> energy_full;
+        f >> energy_full;
       }
 
       uint32_t energy_full_design = 0;
       bool energy_full_design_exists = false;
-      if (fs::exists(bat / "energy_full_design")) {
+      if (std::ifstream f{bat / "energy_full_design"}) {
         energy_full_design_exists = true;
-        std::ifstream(bat / "energy_full_design") >> energy_full_design;
+        f >> energy_full_design;
       }
 
       uint16_t cycleCount = 0;
-      if (fs::exists(bat / "cycle_count")) {
+      if (std::ifstream f{bat / "cycle_count"}) {
-        std::ifstream(bat / "cycle_count") >> cycleCount;
+        f >> cycleCount;
       }
       if (charge_full_design >= largestDesignCapacity) {
         largestDesignCapacity = charge_full_design;
@@ -402,9 +403,9 @@ waybar::modules::Battery::getInfos() {
       } else if (energy_now_exists && energy_full_exists && energy_full != 0) {
         capacity_exists = true;
         capacity = 100 * (uint64_t)energy_now / (uint64_t)energy_full;
-      } else if (fs::exists(bat / "capacity")) {
+      } else if (std::ifstream f{bat / "capacity"}) {
         capacity_exists = true;
-        std::ifstream(bat / "capacity") >> capacity;
+        f >> capacity;
       }
 
       if (!voltage_now_exists) {
@@ -686,7 +687,7 @@ auto waybar::modules::Battery::update() -> void {
     status = getAdapterStatus(capacity);
   }
   auto status_pretty = status;
-  puts(status.c_str());
+
   // Transform to lowercase  and replace space with dash
   std::ranges::transform(status.begin(), status.end(), status.begin(),
                          [](char ch) { return ch == ' ' ? '-' : std::tolower(ch); });
@@ -790,16 +791,19 @@ void waybar::modules::Battery::processEvents(std::string& state, std::string& st
   if (!events.isObject() || events.empty()) {
     return;
   }
-  std::string event_name = fmt::format("on-{}-{}", status == "discharging" ? status : "charging",
+  auto exec = [](Json::Value const& event) {
-                                       state.empty() ? std::to_string(capacity) : state);
+    if (!event.isString()) return;
+    if (auto command = event.asString(); !command.empty()) {
+      util::command::exec(command, "");
+    }
+  };
+  std::string status_name = status == "discharging" ? "on-discharging" : "on-charging";
+  std::string event_name = status_name + '-' + (state.empty() ? std::to_string(capacity) : state);
   if (last_event_ != event_name) {
     spdlog::debug("battery: triggering event {}", event_name);
-    if (events[event_name].isString()) {
+    exec(events[event_name]);
-      std::string exec = events[event_name].asString();
+    if (!last_event_.empty() && last_event_[3] != event_name[3]) {
-      // Execute the command if it is not empty
+      exec(events[status_name]);
-      if (!exec.empty()) {
-        util::command::exec(exec, "");
-      }
     }
     last_event_ = event_name;
   }

src/modules/bluetooth.cpp

@@ -111,13 +111,16 @@ waybar::modules::Bluetooth::Bluetooth(const std::string& id, const Json::Value&
     findConnectedDevices(cur_controller_->path, connected_devices_);
   }
 
+  if (manager_) {
     g_signal_connect(manager_.get(), "object-added", G_CALLBACK(onObjectAdded), this);
     g_signal_connect(manager_.get(), "object-removed", G_CALLBACK(onObjectRemoved), this);
     g_signal_connect(manager_.get(), "interface-proxy-properties-changed",
                      G_CALLBACK(onInterfaceProxyPropertiesChanged), this);
-  g_signal_connect(manager_.get(), "interface-added", G_CALLBACK(onInterfaceAddedOrRemoved), this);
+    g_signal_connect(manager_.get(), "interface-added", G_CALLBACK(onInterfaceAddedOrRemoved),
+                     this);
     g_signal_connect(manager_.get(), "interface-removed", G_CALLBACK(onInterfaceAddedOrRemoved),
                      this);
+  }
 
 #ifdef WANT_RFKILL
   rfkill_.on_update.connect(sigc::hide(sigc::mem_fun(*this, &Bluetooth::update)));
@@ -264,7 +267,7 @@ auto waybar::modules::Bluetooth::update() -> void {
         device_enumerate_.erase(0, 1);
       }
     }
-    label_.set_tooltip_text(fmt::format(
+    label_.set_tooltip_markup(fmt::format(
         fmt::runtime(tooltip_format), fmt::arg("status", state_),
         fmt::arg("num_connections", connected_devices_.size()),
         fmt::arg("controller_address", cur_controller_ ? cur_controller_->address : "null"),
@@ -446,6 +449,10 @@ auto waybar::modules::Bluetooth::getControllerProperties(GDBusObject* object,
 auto waybar::modules::Bluetooth::findCurController() -> std::optional<ControllerInfo> {
   std::optional<ControllerInfo> controller_info;
 
+  if (!manager_) {
+    return controller_info;
+  }
+
   GList* objects = g_dbus_object_manager_get_objects(manager_.get());
   for (GList* l = objects; l != NULL; l = l->next) {
     GDBusObject* object = G_DBUS_OBJECT(l->data);
@@ -465,6 +472,9 @@ auto waybar::modules::Bluetooth::findCurController() -> std::optional<Controller
 auto waybar::modules::Bluetooth::findConnectedDevices(const std::string& cur_controller_path,
                                                       std::vector<DeviceInfo>& connected_devices)
     -> void {
+  if (!manager_) {
+    return;
+  }
   GList* objects = g_dbus_object_manager_get_objects(manager_.get());
   for (GList* l = objects; l != NULL; l = l->next) {
     GDBusObject* object = G_DBUS_OBJECT(l->data);

src/modules/cava/cavaRaw.cpp

@@ -26,6 +26,7 @@ void waybar::modules::cava::Cava::pause_resume() { backend_->doPauseResume(); }
 auto waybar::modules::cava::Cava::onUpdate(const std::string& input) -> void {
   Glib::signal_idle().connect_once([this, input]() {
     if (silence_) {
+      silence_ = false;
       label_.get_style_context()->remove_class("silent");
       if (!label_.get_style_context()->has_class("updated"))
         label_.get_style_context()->add_class("updated");
@@ -38,7 +39,6 @@ auto waybar::modules::cava::Cava::onUpdate(const std::string& input) -> void {
     label_.show();
     ALabel::update();
   });
-  silence_ = false;
 }
 
 auto waybar::modules::cava::Cava::onSilence() -> void {
@@ -47,9 +47,11 @@ auto waybar::modules::cava::Cava::onSilence() -> void {
       if (label_.get_style_context()->has_class("updated"))
         label_.get_style_context()->remove_class("updated");
 
-      if (hide_on_silence_)
+      if (hide_on_silence_) {
+        // Clear the label markup before hiding to prevent GTK from rendering a NULL Pango layout
+        label_.set_markup("");
         label_.hide();
-      else if (config_["format_silent"].isString())
+      } else if (config_["format_silent"].isString())
         label_.set_markup(format_silent_);
       silence_ = true;
       label_.get_style_context()->add_class("silent");

src/modules/cava/cava_backend.cpp

@@ -183,10 +183,10 @@ void waybar::modules::cava::CavaBackend::loadConfig() {
   prm_.inAtty = 0;
   auto const output{prm_.output};
   // prm_.output = ::cava::output_method::OUTPUT_RAW;
-  if (config_["data_format"].isString()) {
   if (prm_.data_format) free(prm_.data_format);
-    prm_.data_format = strdup(config_["data_format"].asString().c_str());
+  // Default to ascii for format-icons output; allow user override
-  }
+  prm_.data_format = strdup(
+      config_["data_format"].isString() ? config_["data_format"].asString().c_str() : "ascii");
   if (config_["raw_target"].isString()) {
     if (prm_.raw_target) free(prm_.raw_target);
     prm_.raw_target = strdup(config_["raw_target"].asString().c_str());
@@ -218,7 +218,7 @@ void waybar::modules::cava::CavaBackend::loadConfig() {
     prm_.input = ::cava::input_method_by_name(config_["method"].asString().c_str());
   if (config_["source"].isString()) {
     if (prm_.audio_source) free(prm_.audio_source);
-    prm_.audio_source = config_["source"].asString().data();
+    prm_.audio_source = strdup(config_["source"].asString().c_str());
   }
   if (config_["sample_rate"].isNumeric()) prm_.samplerate = config_["sample_rate"].asLargestInt();
   if (config_["sample_bits"].isInt()) prm_.samplebits = config_["sample_bits"].asInt();

src/modules/cffi.cpp

@@ -35,7 +35,7 @@ CFFI::CFFI(const std::string& name, const std::string& id, const Json::Value& co
       throw std::runtime_error{std::string{"Missing wbcffi_init function: "} + dlerror()};
     }
     hooks_.deinit = reinterpret_cast<DenitFn*>(dlsym(handle, "wbcffi_deinit"));
-    if (!hooks_.init) {
+    if (!hooks_.deinit) {
       throw std::runtime_error{std::string{"Missing wbcffi_deinit function: "} + dlerror()};
     }
     // Optional functions
@@ -71,6 +71,7 @@ CFFI::CFFI(const std::string& name, const std::string& id, const Json::Value& co
 
   // Prepare config_entries array
   std::vector<ffi::wbcffi_config_entry> config_entries;
+  config_entries.reserve(keys.size());
   for (size_t i = 0; i < keys.size(); i++) {
     config_entries.push_back({keys[i].c_str(), config_entries_stringstor[i].c_str()});
   }

src/modules/cpu.cpp

@@ -26,9 +26,7 @@ auto waybar::modules::Cpu::update() -> void {
   auto [load1, load5, load15] = Load::getLoad();
   auto [cpu_usage, tooltip] = CpuUsage::getCpuUsage(prev_times_);
   auto [max_frequency, min_frequency, avg_frequency] = CpuFrequency::getCpuFrequency();
-  if (tooltipEnabled()) {
+
-    label_.set_tooltip_text(tooltip);
-  }
   auto format = format_;
   auto total_usage = cpu_usage.empty() ? 0 : cpu_usage[0];
   auto state = getState(total_usage);
@@ -48,14 +46,25 @@ auto waybar::modules::Cpu::update() -> void {
     store.push_back(fmt::arg("max_frequency", max_frequency));
     store.push_back(fmt::arg("min_frequency", min_frequency));
     store.push_back(fmt::arg("avg_frequency", avg_frequency));
+    std::vector<std::string> arg_names;
+    arg_names.reserve(cpu_usage.size() * 2);
     for (size_t i = 1; i < cpu_usage.size(); ++i) {
       auto core_i = i - 1;
-      auto core_format = fmt::format("usage{}", core_i);
+      arg_names.push_back(fmt::format("usage{}", core_i));
-      store.push_back(fmt::arg(core_format.c_str(), cpu_usage[i]));
+      store.push_back(fmt::arg(arg_names.back().c_str(), cpu_usage[i]));
-      auto icon_format = fmt::format("icon{}", core_i);
+      arg_names.push_back(fmt::format("icon{}", core_i));
-      store.push_back(fmt::arg(icon_format.c_str(), getIcon(cpu_usage[i], icons)));
+      store.push_back(fmt::arg(arg_names.back().c_str(), getIcon(cpu_usage[i], icons)));
     }
     label_.set_markup(fmt::vformat(format, store));
+
+    if (tooltipEnabled()) {
+      if (config_["tooltip-format"].isString()) {
+        tooltip = config_["tooltip-format"].asString();
+        label_.set_tooltip_markup(fmt::vformat(tooltip, store));
+      } else {
+        label_.set_tooltip_markup(tooltip);
+      }
+    }
   }
 
   // Call parent update

src/modules/cpu_frequency/common.cpp

@@ -20,12 +20,7 @@ waybar::modules::CpuFrequency::CpuFrequency(const std::string& id, const Json::V
 auto waybar::modules::CpuFrequency::update() -> void {
   // TODO: as creating dynamic fmt::arg arrays is buggy we have to calc both
   auto [max_frequency, min_frequency, avg_frequency] = CpuFrequency::getCpuFrequency();
-  if (tooltipEnabled()) {
+
-    auto tooltip =
-        fmt::format("Minimum frequency: {}\nAverage frequency: {}\nMaximum frequency: {}\n",
-                    min_frequency, avg_frequency, max_frequency);
-    label_.set_tooltip_text(tooltip);
-  }
   auto format = format_;
   auto state = getState(avg_frequency);
   if (!state.empty() && config_["format-" + state].isString()) {
@@ -43,6 +38,18 @@ auto waybar::modules::CpuFrequency::update() -> void {
     store.push_back(fmt::arg("min_frequency", min_frequency));
     store.push_back(fmt::arg("avg_frequency", avg_frequency));
     label_.set_markup(fmt::vformat(format, store));
+
+    if (tooltipEnabled()) {
+      std::string tooltip;
+      if (config_["tooltip-format"].isString()) {
+        tooltip = config_["tooltip-format"].asString();
+        label_.set_tooltip_markup(fmt::vformat(tooltip, store));
+      } else {
+        tooltip = "Minimum frequency: {}\nAverage frequency: {}\nMaximum frequency: {}\n";
+        label_.set_tooltip_markup(
+            fmt::format(fmt::runtime(tooltip), min_frequency, avg_frequency, max_frequency));
+      }
+    }
   }
 
   // Call parent update

src/modules/cpu_frequency/linux.cpp

@@ -23,23 +23,21 @@ std::vector<float> waybar::modules::CpuFrequency::parseCpuFrequencies() {
 
   if (frequencies.size() <= 0) {
     std::string cpufreq_dir = "/sys/devices/system/cpu/cpufreq";
-    if (std::filesystem::exists(cpufreq_dir)) {
+    try {
       std::vector<std::string> frequency_files = {"/cpuinfo_min_freq", "/cpuinfo_max_freq"};
       for (auto& p : std::filesystem::directory_iterator(cpufreq_dir)) {
-        for (auto freq_file : frequency_files) {
+        for (const auto& freq_file : frequency_files) {
           std::string freq_file_path = p.path().string() + freq_file;
-          if (std::filesystem::exists(freq_file_path)) {
           std::string freq_value;
           std::ifstream freq(freq_file_path);
           if (freq.is_open()) {
             getline(freq, freq_value);
             float frequency = std::strtol(freq_value.c_str(), nullptr, 10);
             frequencies.push_back(frequency / 1000);
-              freq.close();
-            }
           }
         }
       }
+    } catch (const std::filesystem::filesystem_error&) {
     }
   }
 

src/modules/cpu_usage/common.cpp

@@ -20,9 +20,7 @@ waybar::modules::CpuUsage::CpuUsage(const std::string& id, const Json::Value& co
 auto waybar::modules::CpuUsage::update() -> void {
   // TODO: as creating dynamic fmt::arg arrays is buggy we have to calc both
   auto [cpu_usage, tooltip] = CpuUsage::getCpuUsage(prev_times_);
-  if (tooltipEnabled()) {
+
-    label_.set_tooltip_text(tooltip);
-  }
   auto format = format_;
   auto total_usage = cpu_usage.empty() ? 0 : cpu_usage[0];
   auto state = getState(total_usage);
@@ -38,14 +36,25 @@ auto waybar::modules::CpuUsage::update() -> void {
     fmt::dynamic_format_arg_store<fmt::format_context> store;
     store.push_back(fmt::arg("usage", total_usage));
     store.push_back(fmt::arg("icon", getIcon(total_usage, icons)));
+    std::vector<std::string> arg_names;
+    arg_names.reserve(cpu_usage.size() * 2);
     for (size_t i = 1; i < cpu_usage.size(); ++i) {
       auto core_i = i - 1;
-      auto core_format = fmt::format("usage{}", core_i);
+      arg_names.push_back(fmt::format("usage{}", core_i));
-      store.push_back(fmt::arg(core_format.c_str(), cpu_usage[i]));
+      store.push_back(fmt::arg(arg_names.back().c_str(), cpu_usage[i]));
-      auto icon_format = fmt::format("icon{}", core_i);
+      arg_names.push_back(fmt::format("icon{}", core_i));
-      store.push_back(fmt::arg(icon_format.c_str(), getIcon(cpu_usage[i], icons)));
+      store.push_back(fmt::arg(arg_names.back().c_str(), getIcon(cpu_usage[i], icons)));
     }
     label_.set_markup(fmt::vformat(format, store));
+
+    if (tooltipEnabled()) {
+      if (config_["tooltip-format"].isString()) {
+        tooltip = config_["tooltip-format"].asString();
+        label_.set_tooltip_markup(fmt::vformat(tooltip, store));
+      } else {
+        label_.set_tooltip_markup(tooltip);
+      }
+    }
   }
 
   // Call parent update
@@ -71,7 +80,8 @@ std::tuple<std::vector<uint16_t>, std::string> waybar::modules::CpuUsage::getCpu
       auto [prev_idle, prev_total] = prev_times[0];
       const float delta_idle = curr_idle - prev_idle;
       const float delta_total = curr_total - prev_total;
-      uint16_t tmp = 100 * (1 - delta_idle / delta_total);
+      uint16_t tmp =
+          (delta_total > 0) ? static_cast<uint16_t>(100 * (1 - delta_idle / delta_total)) : 0;
       tooltip = fmt::format("Total: {}%\nCores: (pending)", tmp);
       usage.push_back(tmp);
     } else {
@@ -93,7 +103,8 @@ std::tuple<std::vector<uint16_t>, std::string> waybar::modules::CpuUsage::getCpu
     }
     const float delta_idle = curr_idle - prev_idle;
     const float delta_total = curr_total - prev_total;
-    uint16_t tmp = 100 * (1 - delta_idle / delta_total);
+    uint16_t tmp =
+        (delta_total > 0) ? static_cast<uint16_t>(100 * (1 - delta_idle / delta_total)) : 0;
     if (i == 0) {
       tooltip = fmt::format("Total: {}%", tmp);
     } else {

src/modules/custom.cpp

@@ -2,6 +2,8 @@
 
 #include <spdlog/spdlog.h>
 
+#include <utility>
+
 #include "util/scope_guard.hpp"
 
 waybar::modules::Custom::Custom(const std::string& name, const std::string& id,
@@ -37,6 +39,11 @@ waybar::modules::Custom::~Custom() {
 }
 
 void waybar::modules::Custom::delayWorker() {
+  if (!config_["exec"].isString() && !config_["exec-if"].isString()) {
+    dp.emit();
+    return;
+  }
+
   thread_ = [this] {
     for (int i : this->pid_children_) {
       int status;
@@ -136,7 +143,7 @@ void waybar::modules::Custom::waitingWorker() {
 }
 
 void waybar::modules::Custom::refresh(int sig) {
-  if (sig == SIGRTMIN + config_["signal"].asInt()) {
+  if (config_["signal"].isInt() && sig == SIGRTMIN + config_["signal"].asInt()) {
     thread_.wake_up();
   }
 }
@@ -180,20 +187,22 @@ auto waybar::modules::Custom::update() -> void {
       } else {
         label_.set_markup(str);
         if (tooltipEnabled()) {
+          std::string tooltip_markup;
           if (tooltip_format_enabled_) {
             auto tooltip = config_["tooltip-format"].asString();
-            tooltip = fmt::format(
+            tooltip_markup = fmt::format(fmt::runtime(tooltip), fmt::arg("text", text_),
-                fmt::runtime(tooltip), fmt::arg("text", text_), fmt::arg("alt", alt_),
+                                         fmt::arg("tooltip", tooltip_), fmt::arg("alt", alt_),
-                fmt::arg("icon", getIcon(percentage_, alt_)), fmt::arg("percentage", percentage_));
+                                         fmt::arg("icon", getIcon(percentage_, alt_)),
-            label_.set_tooltip_markup(tooltip);
+                                         fmt::arg("percentage", percentage_));
           } else if (text_ == tooltip_) {
-            if (label_.get_tooltip_markup() != str) {
+            tooltip_markup = str;
-              label_.set_tooltip_markup(str);
-            }
           } else {
-            if (label_.get_tooltip_markup() != tooltip_) {
+            tooltip_markup = tooltip_;
-              label_.set_tooltip_markup(tooltip_);
           }
+
+          if (last_tooltip_markup_ != tooltip_markup) {
+            label_.set_tooltip_markup(tooltip_markup);
+            last_tooltip_markup_ = std::move(tooltip_markup);
           }
         }
         auto style = label_.get_style_context();

src/modules/disk.cpp

@@ -41,7 +41,7 @@ auto waybar::modules::Disk::update() -> void {
     fs_used - File system used space
   */
 
-  if (err != 0) {
+  if (err != 0 || stats.f_blocks == 0) {
     event_box_.hide();
     return;
   }
@@ -81,7 +81,7 @@ auto waybar::modules::Disk::update() -> void {
     if (config_["tooltip-format"].isString()) {
       tooltip_format = config_["tooltip-format"].asString();
     }
-    label_.set_tooltip_text(fmt::format(
+    label_.set_tooltip_markup(fmt::format(
         fmt::runtime(tooltip_format), stats.f_bavail * 100 / stats.f_blocks, fmt::arg("free", free),
         fmt::arg("percentage_free", stats.f_bavail * 100 / stats.f_blocks), fmt::arg("used", used),
         fmt::arg("percentage_used", percentage_used), fmt::arg("total", total),
@@ -92,7 +92,7 @@ auto waybar::modules::Disk::update() -> void {
   ALabel::update();
 }
 
-float waybar::modules::Disk::calc_specific_divisor(std::string divisor) {
+float waybar::modules::Disk::calc_specific_divisor(const std::string& divisor) {
   if (divisor == "kB") {
     return 1000.0;
   } else if (divisor == "kiB") {

src/modules/dwl/tags.cpp

@@ -70,17 +70,33 @@ 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) {
-    static_cast<Tags *>(data)->status_manager_ = static_cast<struct zdwl_ipc_manager_v2 *>(
+  auto* self = static_cast<Tags*>(data);
-        (zdwl_ipc_manager_v2 *)wl_registry_bind(registry, name, &zdwl_ipc_manager_v2_interface, 1));
+
+  if (self->status_manager_) {
+  zdwl_ipc_manager_v2_destroy(self->status_manager_);
+  self->status_manager_ = nullptr;
 }
+
+  self->status_manager_ = static_cast<struct zdwl_ipc_manager_v2*>(
+      wl_registry_bind(registry, name, &zdwl_ipc_manager_v2_interface, 1));
+}
+
 if (std::strcmp(interface, wl_seat_interface.name) == 0) {
+  auto* self = static_cast<Tags*>(data);
+
+  if (self->seat_) {
+    wl_seat_destroy(self->seat_);
+    self->seat_ = nullptr;
+  }
+
   version = std::min<uint32_t>(version, 1);
-    static_cast<Tags *>(data)->seat_ = static_cast<struct wl_seat *>(
+
+  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) {
   /* Ignore event */
 }
@@ -179,6 +195,7 @@ bool Tags::handle_button_press(GdkEventButton *event_button, uint32_t tag) {
 }
 
 void Tags::handle_view_tags(uint32_t tag, uint32_t state, uint32_t clients, uint32_t focused) {
+  if (tag >= buttons_.size()) return;
   // First clear all occupied state
   auto& button = buttons_[tag];
   if (clients) {

src/modules/dwl/window.cpp

@@ -116,7 +116,7 @@ void Window::handle_frame() {
   updateAppIconName(appid_, "");
   updateAppIcon();
   if (tooltipEnabled()) {
-    label_.set_tooltip_text(title_);
+    label_.set_tooltip_markup(title_);
   }
 }
 

src/modules/ext/workspace_manager.cpp

@@ -143,7 +143,9 @@ void WorkspaceManager::handle_finished() {
   ext_manager_ = nullptr;
 }
 
-void WorkspaceManager::commit() const { ext_workspace_manager_v1_commit(ext_manager_); }
+void WorkspaceManager::commit() const {
+  if (ext_manager_) ext_workspace_manager_v1_commit(ext_manager_);
+}
 
 void WorkspaceManager::update() {
   spdlog::debug("[ext/workspaces]: Updating state");

src/modules/gamemode.cpp

@@ -128,9 +128,9 @@ void Gamemode::getData() {
       Glib::VariantContainerBase data = gamemode_proxy->call_sync("Get", parameters);
       if (data && data.is_of_type(Glib::VariantType("(v)"))) {
         Glib::VariantBase variant;
-        g_variant_get(data.gobj_copy(), "(v)", &variant);
+        g_variant_get(const_cast<GVariant*>(data.gobj()), "(v)", &variant);
         if (variant && variant.is_of_type(Glib::VARIANT_TYPE_INT32)) {
-          g_variant_get(variant.gobj_copy(), "i", &gameCount);
+          g_variant_get(const_cast<GVariant*>(variant.gobj()), "i", &gameCount);
           return;
         }
       }
@@ -158,7 +158,7 @@ void Gamemode::prepareForSleep_cb(const Glib::RefPtr<Gio::DBus::Connection>& con
                                   const Glib::VariantContainerBase& parameters) {
   if (parameters.is_of_type(Glib::VariantType("(b)"))) {
     gboolean sleeping;
-    g_variant_get(parameters.gobj_copy(), "(b)", &sleeping);
+    g_variant_get(const_cast<GVariant*>(parameters.gobj()), "(b)", &sleeping);
     if (!sleeping) {
       getData();
       dp.emit();
@@ -212,7 +212,7 @@ auto Gamemode::update() -> void {
   // Tooltip
   if (tooltip) {
     std::string text = fmt::format(fmt::runtime(tooltip_format), fmt::arg("count", gameCount));
-    box_.set_tooltip_text(text);
+    box_.set_tooltip_markup(text);
   }
 
   // Label format

src/modules/hyprland/backend.cpp

@@ -9,22 +9,25 @@
 #include <sys/un.h>
 #include <unistd.h>
 
+#include <array>
+#include <cerrno>
+#include <cstring>
 #include <filesystem>
+#include <optional>
 #include <string>
 
+#include "util/scoped_fd.hpp"
+
 namespace waybar::modules::hyprland {
 
 std::filesystem::path IPC::socketFolder_;
+std::optional<bool> IPC::s_luaProtocolDetected_;
 
 std::filesystem::path IPC::getSocketFolder(const char* instanceSig) {
   static std::mutex folderMutex;
   std::unique_lock lock(folderMutex);
 
-  // socket path, specified by EventManager of Hyprland
+  if (socketFolder_.empty()) {
-  if (!socketFolder_.empty()) {
-    return socketFolder_;
-  }
-
     const char* xdgRuntimeDirEnv = std::getenv("XDG_RUNTIME_DIR");
     std::filesystem::path xdgRuntimeDir;
     // Only set path if env variable is set
@@ -38,15 +41,15 @@ std::filesystem::path IPC::getSocketFolder(const char* instanceSig) {
       spdlog::warn("$XDG_RUNTIME_DIR/hypr does not exist, falling back to /tmp/hypr");
       socketFolder_ = std::filesystem::path("/tmp") / "hypr";
     }
+  }
 
-  socketFolder_ = socketFolder_ / instanceSig;
+  return socketFolder_ / instanceSig;
-  return socketFolder_;
 }
 
 IPC::IPC() {
   // will start IPC and relay events to parseIPC
-  ipcThread_ = std::thread([this]() { socketListener(); });
   socketOwnerPid_ = getpid();
+  ipcThread_ = std::thread([this]() { socketListener(); });
 }
 
 IPC::~IPC() {
@@ -54,20 +57,21 @@ IPC::~IPC() {
   // failed exec()) exits.
   if (getpid() != socketOwnerPid_) return;
 
-  running_ = false;
+  running_.store(false, std::memory_order_relaxed);
   spdlog::info("Hyprland IPC stopping...");
+  {
+    std::lock_guard<std::mutex> lock(socketMutex_);
     if (socketfd_ != -1) {
       spdlog::trace("Shutting down socket");
-    if (shutdown(socketfd_, SHUT_RDWR) == -1) {
+      if (shutdown(socketfd_, SHUT_RDWR) == -1 && errno != ENOTCONN) {
         spdlog::error("Hyprland IPC: Couldn't shutdown socket");
       }
-    spdlog::trace("Closing socket");
-    if (close(socketfd_) == -1) {
-      spdlog::error("Hyprland IPC: Couldn't close socket");
     }
   }
+  if (ipcThread_.joinable()) {
     ipcThread_.join();
   }
+}
 
 IPC& IPC::inst() {
   static IPC ipc;
@@ -85,10 +89,10 @@ void IPC::socketListener() {
 
   spdlog::info("Hyprland IPC starting");
 
-  struct sockaddr_un addr;
+  struct sockaddr_un addr = {};
-  socketfd_ = socket(AF_UNIX, SOCK_STREAM, 0);
+  const int socketfd = socket(AF_UNIX, SOCK_STREAM, 0);
 
-  if (socketfd_ == -1) {
+  if (socketfd == -1) {
     spdlog::error("Hyprland IPC: socketfd failed");
     return;
   }
@@ -96,33 +100,57 @@ void IPC::socketListener() {
   addr.sun_family = AF_UNIX;
 
   auto socketPath = IPC::getSocketFolder(his) / ".socket2.sock";
+  if (socketPath.native().size() >= sizeof(addr.sun_path)) {
+    spdlog::error("Hyprland IPC: Socket path is too long: {}", socketPath.string());
+    close(socketfd);
+    return;
+  }
   strncpy(addr.sun_path, socketPath.c_str(), sizeof(addr.sun_path) - 1);
 
-  addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
-
   int l = sizeof(struct sockaddr_un);
 
-  if (connect(socketfd_, (struct sockaddr*)&addr, l) == -1) {
+  if (connect(socketfd, (struct sockaddr*)&addr, l) == -1) {
-    spdlog::error("Hyprland IPC: Unable to connect?");
+    spdlog::error("Hyprland IPC: Unable to connect? {}", std::strerror(errno));
+    close(socketfd);
     return;
   }
-  auto* file = fdopen(socketfd_, "r");
+
-  if (file == nullptr) {
+  {
-    spdlog::error("Hyprland IPC: Couldn't open file descriptor");
+    std::lock_guard<std::mutex> lock(socketMutex_);
-    return;
+    socketfd_ = socketfd;
   }
-  while (running_) {
+
+  std::string pending;
+  while (running_.load(std::memory_order_relaxed)) {
     std::array<char, 1024> buffer;  // Hyprland socket2 events are max 1024 bytes
+    const ssize_t bytes_read = read(socketfd, buffer.data(), buffer.size());
 
-    auto* receivedCharPtr = fgets(buffer.data(), buffer.size(), file);
+    if (bytes_read == 0) {
+      if (running_.load(std::memory_order_relaxed)) {
+        spdlog::warn("Hyprland IPC: Socket closed by peer");
+      }
+      break;
+    }
 
-    if (receivedCharPtr == nullptr) {
+    if (bytes_read < 0) {
-      std::this_thread::sleep_for(std::chrono::milliseconds(1));
+      if (errno == EINTR) {
         continue;
       }
+      if (!running_.load(std::memory_order_relaxed)) {
+        break;
+      }
+      spdlog::error("Hyprland IPC: read failed: {}", std::strerror(errno));
+      break;
+    }
 
-    std::string messageReceived(buffer.data());
+    pending.append(buffer.data(), static_cast<std::size_t>(bytes_read));
-    messageReceived = messageReceived.substr(0, messageReceived.find_first_of('\n'));
+    for (auto newline_pos = pending.find('\n'); newline_pos != std::string::npos;
+         newline_pos = pending.find('\n')) {
+      std::string messageReceived = pending.substr(0, newline_pos);
+      pending.erase(0, newline_pos + 1);
+      if (messageReceived.empty()) {
+        continue;
+      }
       spdlog::debug("hyprland IPC received {}", messageReceived);
 
       try {
@@ -132,8 +160,16 @@ void IPC::socketListener() {
       } catch (...) {
         throw;
       }
-
+    }
-    std::this_thread::sleep_for(std::chrono::milliseconds(1));
+  }
+  {
+    std::lock_guard<std::mutex> lock(socketMutex_);
+    if (socketfd_ != -1) {
+      if (close(socketfd_) == -1) {
+        spdlog::error("Hyprland IPC: Couldn't close socket");
+      }
+      socketfd_ = -1;
+    }
   }
   spdlog::debug("Hyprland IPC stopped");
 }
@@ -178,7 +214,7 @@ void IPC::unregisterForIPC(EventHandler* ev_handler) {
 std::string IPC::getSocket1Reply(const std::string& rq) {
   // basically hyprctl
 
-  const auto serverSocket = socket(AF_UNIX, SOCK_STREAM, 0);
+  util::ScopedFd serverSocket(socket(AF_UNIX, SOCK_STREAM, 0));
 
   if (serverSocket < 0) {
     throw std::runtime_error("Hyprland IPC: Couldn't open a socket (1)");
@@ -198,8 +234,10 @@ std::string IPC::getSocket1Reply(const std::string& rq) {
   std::string socketPath = IPC::getSocketFolder(instanceSig) / ".socket.sock";
 
   // Use snprintf to copy the socketPath string into serverAddress.sun_path
-  if (snprintf(serverAddress.sun_path, sizeof(serverAddress.sun_path), "%s", socketPath.c_str()) <
+  const auto socketPathLength =
-      0) {
+      snprintf(serverAddress.sun_path, sizeof(serverAddress.sun_path), "%s", socketPath.c_str());
+  if (socketPathLength < 0 ||
+      socketPathLength >= static_cast<int>(sizeof(serverAddress.sun_path))) {
     throw std::runtime_error("Hyprland IPC: Couldn't copy socket path (6)");
   }
 
@@ -208,28 +246,39 @@ std::string IPC::getSocket1Reply(const std::string& rq) {
     throw std::runtime_error("Hyprland IPC: Couldn't connect to " + socketPath + ". (3)");
   }
 
-  auto sizeWritten = write(serverSocket, rq.c_str(), rq.length());
+  std::size_t totalWritten = 0;
+  while (totalWritten < rq.length()) {
+    const auto sizeWritten =
+        write(serverSocket, rq.c_str() + totalWritten, rq.length() - totalWritten);
 
     if (sizeWritten < 0) {
+      if (errno == EINTR) {
+        continue;
+      }
       spdlog::error("Hyprland IPC: Couldn't write (4)");
       return "";
     }
+    if (sizeWritten == 0) {
+      spdlog::error("Hyprland IPC: Socket write made no progress");
+      return "";
+    }
+    totalWritten += static_cast<std::size_t>(sizeWritten);
+  }
 
   std::array<char, 8192> buffer = {0};
   std::string response;
+  ssize_t sizeWritten = 0;
 
   do {
     sizeWritten = read(serverSocket, buffer.data(), 8192);
 
     if (sizeWritten < 0) {
       spdlog::error("Hyprland IPC: Couldn't read (5)");
-      close(serverSocket);
       return "";
     }
     response.append(buffer.data(), sizeWritten);
   } while (sizeWritten > 0);
 
-  close(serverSocket);
   return response;
 }
 
@@ -243,4 +292,69 @@ Json::Value IPC::getSocket1JsonReply(const std::string& rq) {
   return parser_.parse(reply);
 }
 
+bool IPC::isLuaProtocol() {
+  if (s_luaProtocolDetected_.has_value()) {
+    return *s_luaProtocolDetected_;
+  }
+
+  // Probe: send a harmless old-style dispatch and check the error.
+  // In Lua-based Hyprland (>= 0.54) the error contains "hl.dispatch".
+  // In older versions it returns "ok" or a different error.
+  auto reply = getSocket1Reply("dispatch workspace __waybar_probe__");
+  bool luaProto = reply.find("hl.dispatch") != std::string::npos;
+
+  if (luaProto) {
+    spdlog::info("Hyprland IPC: detected Lua-based dispatch protocol (Hyprland >= 0.54)");
+  } else {
+    spdlog::info("Hyprland IPC: detected legacy dispatch protocol");
+  }
+
+  s_luaProtocolDetected_ = luaProto;
+  return luaProto;
+}
+
+std::string IPC::buildLuaDispatch(const std::string& dispatcher, const std::string& arg) {
+  // Map old-style dispatchers to the new Lua hl.dsp API.
+  //
+  // Old format:  dispatch workspace 1
+  // New format:  /dispatch hl.dsp.focus({ workspace = "1" })
+  //
+  // Old format:  dispatch focusworkspaceoncurrentmonitor 2
+  // New format:  /dispatch hl.dsp.focus({ workspace = "2", on_current_monitor = true })
+  //
+  // Old format:  dispatch togglespecialworkspace name
+  // New format:  /dispatch hl.dsp.workspace.toggle_special("name")
+
+  if (dispatcher == "workspace") {
+    return "/dispatch hl.dsp.focus({ workspace = \"" + arg + "\" })";
+  }
+  if (dispatcher == "focusworkspaceoncurrentmonitor") {
+    return "/dispatch hl.dsp.focus({ workspace = \"" + arg + "\", on_current_monitor = true })";
+  }
+  if (dispatcher == "togglespecialworkspace") {
+    if (arg.empty()) {
+      return "/dispatch hl.dsp.workspace.toggle_special()";
+    }
+    return "/dispatch hl.dsp.workspace.toggle_special(\"" + arg + "\")";
+  }
+
+  // Fallback for any other dispatcher: try the old format wrapped in dispatch().
+  // This may not work for all dispatchers, but it's a reasonable default.
+  spdlog::warn("Hyprland IPC: unknown dispatcher '{}' in Lua mode, attempting generic format",
+               dispatcher);
+  return "/dispatch hl.dsp." + dispatcher + "(\"" + arg + "\")";
+}
+
+std::string IPC::dispatch(const std::string& dispatcher, const std::string& arg) {
+  if (isLuaProtocol()) {
+    return getSocket1Reply(buildLuaDispatch(dispatcher, arg));
+  }
+  // Legacy format: "dispatch <dispatcher> <arg>"
+  std::string cmd = "dispatch " + dispatcher;
+  if (!arg.empty()) {
+    cmd += " " + arg;
+  }
+  return getSocket1Reply(cmd);
+}
+
 }  // namespace waybar::modules::hyprland

src/modules/hyprland/language.cpp

@@ -63,19 +63,35 @@ auto Language::update() -> void {
 
 void Language::onEvent(const std::string& ev) {
   std::lock_guard<std::mutex> lg(mutex_);
-  std::string kbName(begin(ev) + ev.find_last_of('>') + 1, begin(ev) + ev.find_first_of(','));
+  const auto payloadStart = ev.find(">>");
+  if (payloadStart == std::string::npos) {
+    spdlog::warn("hyprland language received malformed event: {}", ev);
+    return;
+  }
+  const auto payload = ev.substr(payloadStart + 2);
+  const auto kbSeparator = payload.find(',');
+  if (kbSeparator == std::string::npos) {
+    spdlog::warn("hyprland language received malformed event payload: {}", ev);
+    return;
+  }
+  std::string kbName = payload.substr(0, kbSeparator);
 
   // Last comma before variants parenthesis, eg:
   // activelayout>>micro-star-int'l-co.,-ltd.-msi-gk50-elite-gaming-keyboard,English (US, intl.,
   // with dead keys)
   std::string beforeParenthesis;
-  auto parenthesisPos = ev.find_last_of('(');
+  auto parenthesisPos = payload.find_last_of('(');
   if (parenthesisPos == std::string::npos) {
-    beforeParenthesis = ev;
+    beforeParenthesis = payload;
   } else {
-    beforeParenthesis = std::string(begin(ev), begin(ev) + parenthesisPos);
+    beforeParenthesis = payload.substr(0, parenthesisPos);
   }
-  auto layoutName = ev.substr(beforeParenthesis.find_last_of(',') + 1);
+  const auto layoutSeparator = beforeParenthesis.find_last_of(',');
+  if (layoutSeparator == std::string::npos) {
+    spdlog::warn("hyprland language received malformed layout payload: {}", ev);
+    return;
+  }
+  auto layoutName = payload.substr(layoutSeparator + 1);
 
   if (config_.isMember("keyboard-name") && kbName != config_["keyboard-name"].asString())
     return;  // ignore

src/modules/hyprland/submap.cpp

@@ -44,12 +44,23 @@ auto Submap::parseConfig(const Json::Value& config) -> void {
 auto Submap::update() -> void {
   std::lock_guard<std::mutex> lg(mutex_);
 
+  // Handle style class changes
+  if (!prev_submap_.empty()) {
+    label_.get_style_context()->remove_class(prev_submap_);
+  }
+
+  if (!submap_.empty()) {
+    label_.get_style_context()->add_class(submap_);
+  }
+
+  prev_submap_ = submap_;
+
   if (submap_.empty()) {
     event_box_.hide();
   } else {
     label_.set_markup(fmt::format(fmt::runtime(format_), submap_));
     if (tooltipEnabled()) {
-      label_.set_tooltip_text(submap_);
+      label_.set_tooltip_markup(submap_);
     }
     event_box_.show();
   }
@@ -64,11 +75,12 @@ void Submap::onEvent(const std::string& ev) {
     return;
   }
 
-  auto submapName = ev.substr(ev.find_first_of('>') + 2);
+  const auto separator = ev.find(">>");
-
+  if (separator == std::string::npos) {
-  if (!submap_.empty()) {
+    spdlog::warn("hyprland submap received malformed event: {}", ev);
-    label_.get_style_context()->remove_class(submap_);
+    return;
   }
+  auto submapName = ev.substr(separator + 2);
 
   submap_ = submapName;
 
@@ -76,8 +88,6 @@ void Submap::onEvent(const std::string& ev) {
     submap_ = default_submap_;
   }
 
-  label_.get_style_context()->add_class(submap_);
-
   spdlog::debug("hyprland submap onevent with {}", submap_);
 
   dp.emit();

src/modules/hyprland/window.cpp

@@ -19,21 +19,19 @@ std::shared_mutex windowIpcSmtx;
 
 Window::Window(const std::string& id, const Bar& bar, const Json::Value& config)
     : AAppIconLabel(config, "window", id, "{title}", 0, true), bar_(bar), m_ipc(IPC::inst()) {
-  std::unique_lock<std::shared_mutex> windowIpcUniqueLock(windowIpcSmtx);
-
   separateOutputs_ = config["separate-outputs"].asBool();
 
+  update();
+
   // register for hyprland ipc
+  std::unique_lock<std::shared_mutex> windowIpcUniqueLock(windowIpcSmtx);
   m_ipc.registerForIPC("activewindow", this);
   m_ipc.registerForIPC("closewindow", this);
   m_ipc.registerForIPC("movewindow", this);
   m_ipc.registerForIPC("changefloatingmode", this);
   m_ipc.registerForIPC("fullscreen", this);
-
   windowIpcUniqueLock.unlock();
 
-  queryActiveWorkspace();
-  update();
   dp.emit();
 }
 
@@ -45,6 +43,8 @@ Window::~Window() {
 auto Window::update() -> void {
   std::shared_lock<std::shared_mutex> windowIpcShareLock(windowIpcSmtx);
 
+  queryActiveWorkspace();
+
   std::string windowName = waybar::util::sanitize_string(workspace_.last_window_title);
   std::string windowAddress = workspace_.last_window;
 
@@ -70,13 +70,13 @@ auto Window::update() -> void {
       tooltip_format = config_["tooltip-format"].asString();
     }
     if (!tooltip_format.empty()) {
-      label_.set_tooltip_text(
+      label_.set_tooltip_markup(
           fmt::format(fmt::runtime(tooltip_format), fmt::arg("title", windowName),
                       fmt::arg("initialTitle", windowData_.initial_title),
                       fmt::arg("class", windowData_.class_name),
                       fmt::arg("initialClass", windowData_.initial_class_name)));
     } else if (!label_text.empty()) {
-      label_.set_tooltip_text(label_text);
+      label_.set_tooltip_markup(label_text);
     }
   }
 
@@ -122,7 +122,7 @@ auto Window::getActiveWorkspace(const std::string& monitorName) -> Workspace {
   const auto monitors = IPC::inst().getSocket1JsonReply("monitors");
   if (monitors.isArray()) {
     auto monitor = std::ranges::find_if(
-        monitors, [&](Json::Value monitor) { return monitor["name"] == monitorName; });
+        monitors, [&](const Json::Value& monitor) { return monitor["name"] == monitorName; });
     if (monitor == std::end(monitors)) {
       spdlog::warn("Monitor not found: {}", monitorName);
       return Workspace{
@@ -137,7 +137,7 @@ auto Window::getActiveWorkspace(const std::string& monitorName) -> Workspace {
     const auto workspaces = IPC::inst().getSocket1JsonReply("workspaces");
     if (workspaces.isArray()) {
       auto workspace = std::ranges::find_if(
-          workspaces, [&](Json::Value workspace) { return workspace["id"] == id; });
+          workspaces, [&](const Json::Value& workspace) { return workspace["id"] == id; });
       if (workspace == std::end(workspaces)) {
         spdlog::warn("No workspace with id {}", id);
         return Workspace{
@@ -175,42 +175,56 @@ auto Window::WindowData::parse(const Json::Value& value) -> Window::WindowData {
 }
 
 void Window::queryActiveWorkspace() {
-  std::shared_lock<std::shared_mutex> windowIpcShareLock(windowIpcSmtx);
-
   if (separateOutputs_) {
     workspace_ = getActiveWorkspace(this->bar_.output->name);
   } else {
     workspace_ = getActiveWorkspace();
   }
 
-  focused_ = true;
-  if (workspace_.windows > 0) {
-    const auto clients = m_ipc.getSocket1JsonReply("clients");
-    if (clients.isArray()) {
-      auto activeWindow = std::ranges::find_if(
-          clients, [&](Json::Value window) { return window["address"] == workspace_.last_window; });
-
-      if (activeWindow == std::end(clients)) {
   focused_ = false;
+  windowData_ = WindowData{};
+  allFloating_ = false;
+  swallowing_ = false;
+  fullscreen_ = false;
+  solo_ = false;
+  soloClass_.clear();
+
+  if (workspace_.windows <= 0) {
     return;
   }
 
+  const auto clients = m_ipc.getSocket1JsonReply("clients");
+  if (!clients.isArray()) {
+    return;
+  }
+
+  auto activeWindow = std::ranges::find_if(clients, [&](const Json::Value& window) {
+    return window["address"] == workspace_.last_window;
+  });
+
+  if (activeWindow == std::end(clients)) {
+    return;
+  }
+
+  focused_ = true;
   windowData_ = WindowData::parse(*activeWindow);
   updateAppIconName(windowData_.class_name, windowData_.initial_class_name);
   std::vector<Json::Value> workspaceWindows;
-      std::ranges::copy_if(clients, std::back_inserter(workspaceWindows), [&](Json::Value window) {
+  std::ranges::copy_if(
+      clients, std::back_inserter(workspaceWindows), [&](const Json::Value& window) {
         return window["workspace"]["id"] == workspace_.id && window["mapped"].asBool();
       });
-      swallowing_ = std::ranges::any_of(workspaceWindows, [&](Json::Value window) {
+  swallowing_ = std::ranges::any_of(workspaceWindows, [&](const Json::Value& window) {
     return !window["swallowing"].isNull() && window["swallowing"].asString() != "0x0";
   });
   std::vector<Json::Value> visibleWindows;
   std::ranges::copy_if(workspaceWindows, std::back_inserter(visibleWindows),
-                           [&](Json::Value window) { return !window["hidden"].asBool(); });
+                       [&](const Json::Value& window) { return !window["hidden"].asBool(); });
-      solo_ = 1 == std::count_if(visibleWindows.begin(), visibleWindows.end(),
+  solo_ = 1 == std::count_if(
-                                 [&](Json::Value window) { return !window["floating"].asBool(); });
+                   visibleWindows.begin(), visibleWindows.end(),
+                   [&](const Json::Value& window) { return !window["floating"].asBool(); });
   allFloating_ = std::ranges::all_of(
-          visibleWindows, [&](Json::Value window) { return window["floating"].asBool(); });
+      visibleWindows, [&](const Json::Value& window) { return window["floating"].asBool(); });
   fullscreen_ = windowData_.fullscreen;
 
   // Fullscreen windows look like they are solo
@@ -220,26 +234,10 @@ void Window::queryActiveWorkspace() {
 
   if (solo_) {
     soloClass_ = windowData_.class_name;
-      } else {
-        soloClass_ = "";
-      }
-    }
-  } else {
-    focused_ = false;
-    windowData_ = WindowData{};
-    allFloating_ = false;
-    swallowing_ = false;
-    fullscreen_ = false;
-    solo_ = false;
-    soloClass_ = "";
   }
 }
 
-void Window::onEvent(const std::string& ev) {
+void Window::onEvent(const std::string& ev) { dp.emit(); }
-  queryActiveWorkspace();
-
-  dp.emit();
-}
 
 void Window::setClass(const std::string& classname, bool enable) {
   if (enable) {

src/modules/hyprland/windowcount.cpp

@@ -39,6 +39,8 @@ WindowCount::~WindowCount() {
 auto WindowCount::update() -> void {
   std::lock_guard<std::mutex> lg(mutex_);
 
+  queryActiveWorkspace();
+
   std::string format = config_["format"].asString();
   std::string formatEmpty = config_["format-empty"].asString();
   std::string formatWindowed = config_["format-windowed"].asString();
@@ -56,7 +58,7 @@ auto WindowCount::update() -> void {
   } else if (!format.empty()) {
     label_.set_markup(fmt::format(fmt::runtime(format), workspace_.windows));
   } else {
-    label_.set_text(fmt::format("{}", workspace_.windows));
+    label_.set_markup(fmt::format("{}", workspace_.windows));
   }
 
   label_.show();
@@ -77,7 +79,7 @@ auto WindowCount::getActiveWorkspace(const std::string& monitorName) -> Workspac
   const auto monitors = m_ipc.getSocket1JsonReply("monitors");
   if (monitors.isArray()) {
     auto monitor = std::ranges::find_if(
-        monitors, [&](Json::Value monitor) { return monitor["name"] == monitorName; });
+        monitors, [&](const Json::Value& monitor) { return monitor["name"] == monitorName; });
     if (monitor == std::end(monitors)) {
       spdlog::warn("Monitor not found: {}", monitorName);
       return Workspace{
@@ -91,7 +93,7 @@ auto WindowCount::getActiveWorkspace(const std::string& monitorName) -> Workspac
     const auto workspaces = m_ipc.getSocket1JsonReply("workspaces");
     if (workspaces.isArray()) {
       auto workspace = std::ranges::find_if(
-          workspaces, [&](Json::Value workspace) { return workspace["id"] == id; });
+          workspaces, [&](const Json::Value& workspace) { return workspace["id"] == id; });
       if (workspace == std::end(workspaces)) {
         spdlog::warn("No workspace with id {}", id);
         return Workspace{
@@ -116,8 +118,6 @@ auto WindowCount::Workspace::parse(const Json::Value& value) -> WindowCount::Wor
 }
 
 void WindowCount::queryActiveWorkspace() {
-  std::lock_guard<std::mutex> lg(mutex_);
-
   if (separateOutputs_) {
     workspace_ = getActiveWorkspace(this->bar_.output->name);
   } else {
@@ -125,10 +125,7 @@ void WindowCount::queryActiveWorkspace() {
   }
 }
 
-void WindowCount::onEvent(const std::string& ev) {
+void WindowCount::onEvent(const std::string& ev) { dp.emit(); }
-  queryActiveWorkspace();
-  dp.emit();
-}
 
 void WindowCount::setClass(const std::string& classname, bool enable) {
   if (enable) {

src/modules/hyprland/windowcreationpayload.cpp

@@ -19,7 +19,7 @@ WindowCreationPayload::WindowCreationPayload(Json::Value const &client_data)
   clearWorkspaceName();
 }
 
-WindowCreationPayload::WindowCreationPayload(std::string workspace_name,
+WindowCreationPayload::WindowCreationPayload(const std::string& workspace_name,
                                              WindowAddress window_address, WindowRepr window_repr)
     : m_window(std::move(window_repr)),
       m_windowAddress(std::move(window_address)),
@@ -28,9 +28,10 @@ WindowCreationPayload::WindowCreationPayload(std::string workspace_name,
   clearWorkspaceName();
 }
 
-WindowCreationPayload::WindowCreationPayload(std::string workspace_name,
+WindowCreationPayload::WindowCreationPayload(const std::string& workspace_name,
-                                             WindowAddress window_address, std::string window_class,
+                                             WindowAddress window_address,
-                                             std::string window_title, bool is_active)
+                                             const std::string& window_class,
+                                             const std::string& window_title, bool is_active)
     : m_window(std::make_pair(std::move(window_class), std::move(window_title))),
       m_windowAddress(std::move(window_address)),
       m_workspaceName(std::move(workspace_name)),

src/modules/hyprland/workspace.cpp

@@ -71,20 +71,20 @@ bool Workspace::handleClicked(GdkEventButton *bt) const {
     try {
       if (id() > 0) {  // normal
         if (m_workspaceManager.moveToMonitor()) {
-          m_ipc.getSocket1Reply("dispatch focusworkspaceoncurrentmonitor " + std::to_string(id()));
+          IPC::dispatch("focusworkspaceoncurrentmonitor", std::to_string(id()));
         } else {
-          m_ipc.getSocket1Reply("dispatch workspace " + std::to_string(id()));
+          IPC::dispatch("workspace", std::to_string(id()));
         }
       } else if (!isSpecial()) {  // named (this includes persistent)
         if (m_workspaceManager.moveToMonitor()) {
-          m_ipc.getSocket1Reply("dispatch focusworkspaceoncurrentmonitor name:" + name());
+          IPC::dispatch("focusworkspaceoncurrentmonitor", "name:" + name());
         } else {
-          m_ipc.getSocket1Reply("dispatch workspace name:" + name());
+          IPC::dispatch("workspace", "name:" + name());
         }
       } else if (id() != -99) {  // named special
-        m_ipc.getSocket1Reply("dispatch togglespecialworkspace " + name());
+        IPC::dispatch("togglespecialworkspace", name());
       } else {  // special
-        m_ipc.getSocket1Reply("dispatch togglespecialworkspace");
+        IPC::dispatch("togglespecialworkspace", "");
       }
       return true;
     } catch (const std::exception& e) {
@@ -96,7 +96,7 @@ bool Workspace::handleClicked(GdkEventButton *bt) const {
 
 void Workspace::initializeWindowMap(const Json::Value& clients_data) {
   m_windowMap.clear();
-  for (auto client : clients_data) {
+  for (const auto& client : clients_data) {
     if (client["workspace"]["id"].asInt() == id()) {
       insertWindow({client});
     }
@@ -300,7 +300,7 @@ void Workspace::updateTaskbar(const std::string &workspace_icon) {
     }
 
     auto window_box = Gtk::make_managed<Gtk::Box>(Gtk::ORIENTATION_HORIZONTAL);
-    window_box->set_tooltip_text(window_repr.window_title);
+    window_box->set_tooltip_markup(window_repr.window_title);
     window_box->get_style_context()->add_class("taskbar-window");
     if (window_repr.isActive) {
       window_box->get_style_context()->add_class("active");

src/modules/hyprland/workspaces.cpp

@@ -34,6 +34,9 @@ Workspaces::Workspaces(const std::string &id, const Bar &bar, const Json::Value
 }
 
 Workspaces::~Workspaces() {
+  if (m_scrollEventConnection_.connected()) {
+    m_scrollEventConnection_.disconnect();
+  }
   m_ipc.unregisterForIPC(this);
   // wait for possible event handler to finish
   std::lock_guard<std::mutex> lg(m_mutex);
@@ -43,6 +46,17 @@ void Workspaces::init() {
   m_activeWorkspaceId = m_ipc.getSocket1JsonReply("activeworkspace")["id"].asInt();
 
   initializeWorkspaces();
+
+  if (m_scrollEventConnection_.connected()) {
+    m_scrollEventConnection_.disconnect();
+  }
+  if (barScroll()) {
+    auto& window = const_cast<Bar&>(m_bar).window;
+    window.add_events(Gdk::SCROLL_MASK | Gdk::SMOOTH_SCROLL_MASK);
+    m_scrollEventConnection_ =
+        window.signal_scroll_event().connect(sigc::mem_fun(*this, &Workspaces::handleScroll));
+  }
+
   dp.emit();
 }
 
@@ -148,7 +162,8 @@ void Workspaces::extendOrphans(int workspaceId, Json::Value const &clientsJson)
   }
 }
 
-std::string Workspaces::getRewrite(std::string window_class, std::string window_title) {
+std::string Workspaces::getRewrite(const std::string& window_class,
+                                   const std::string& window_title) {
   std::string windowReprKey;
   if (windowRewriteConfigUsesTitle()) {
     windowReprKey = fmt::format("class<{}> title<{}>", window_class, window_title);
@@ -189,7 +204,7 @@ void Workspaces::initializeWorkspaces() {
   auto const workspacesJson = m_ipc.getSocket1JsonReply("workspaces");
   auto const clientsJson = m_ipc.getSocket1JsonReply("clients");
 
-  for (Json::Value workspaceJson : workspacesJson) {
+  for (const auto& workspaceJson : workspacesJson) {
     std::string workspaceName = workspaceJson["name"].asString();
     if ((allOutputs() || m_bar.output->name == workspaceJson["monitor"].asString()) &&
         (!workspaceName.starts_with("special") || showSpecial()) &&
@@ -263,7 +278,7 @@ void Workspaces::loadPersistentWorkspacesFromConfig(Json::Value const &clientsJs
         // key is the workspace and value is array of monitors to create on
         for (const Json::Value& monitor : value) {
           if (monitor.isString() && monitor.asString() == currentMonitor) {
-            persistentWorkspacesToCreate.emplace_back(currentMonitor);
+            persistentWorkspacesToCreate.emplace_back(key);
             break;
           }
         }
@@ -296,6 +311,11 @@ void Workspaces::loadPersistentWorkspacesFromWorkspaceRules(const Json::Value &c
     auto workspace = rule.isMember("defaultName") ? rule["defaultName"].asString()
                                                   : rule["workspaceString"].asString();
 
+    // There could be persistent special workspaces, only show those when show-special is enabled.
+    if (workspace.starts_with("special:") && !showSpecial()) {
+      continue;
+    }
+
     // The prefix "name:" cause mismatches with workspace names taken anywhere else.
     if (workspace.starts_with("name:")) {
       workspace = workspace.substr(5);
@@ -319,8 +339,13 @@ void Workspaces::loadPersistentWorkspacesFromWorkspaceRules(const Json::Value &c
 
 void Workspaces::onEvent(const std::string& ev) {
   std::lock_guard<std::mutex> lock(m_mutex);
-  std::string eventName(begin(ev), begin(ev) + ev.find_first_of('>'));
+  const auto separator = ev.find(">>");
-  std::string payload = ev.substr(eventName.size() + 2);
+  if (separator == std::string::npos) {
+    spdlog::warn("Malformed Hyprland workspace event: {}", ev);
+    return;
+  }
+  std::string eventName = ev.substr(0, separator);
+  std::string payload = ev.substr(separator + 2);
 
   if (eventName == "workspacev2") {
     onWorkspaceActivated(payload);
@@ -388,7 +413,7 @@ void Workspaces::onWorkspaceCreated(std::string const &payload, Json::Value cons
   auto const workspaceRules = m_ipc.getSocket1JsonReply("workspacerules");
   auto const workspacesJson = m_ipc.getSocket1JsonReply("workspaces");
 
-  for (Json::Value workspaceJson : workspacesJson) {
+  for (auto workspaceJson : workspacesJson) {
     const auto currentId = workspaceJson["id"].asInt();
     if (currentId == *workspaceId) {
       std::string workspaceName = workspaceJson["name"].asString();
@@ -483,19 +508,21 @@ void Workspaces::onMonitorFocused(std::string const &payload) {
 void Workspaces::onWindowOpened(std::string const& payload) {
   spdlog::trace("Window opened: {}", payload);
   updateWindowCount();
-  size_t lastCommaIdx = 0;
+  const auto firstComma = payload.find(',');
-  size_t nextCommaIdx = payload.find(',');
+  const auto secondComma =
-  std::string windowAddress = payload.substr(lastCommaIdx, nextCommaIdx - lastCommaIdx);
+      firstComma == std::string::npos ? std::string::npos : payload.find(',', firstComma + 1);
+  const auto thirdComma =
+      secondComma == std::string::npos ? std::string::npos : payload.find(',', secondComma + 1);
+  if (firstComma == std::string::npos || secondComma == std::string::npos ||
+      thirdComma == std::string::npos) {
+    spdlog::warn("Malformed Hyprland openwindow payload: {}", payload);
+    return;
+  }
 
-  lastCommaIdx = nextCommaIdx;
+  std::string windowAddress = payload.substr(0, firstComma);
-  nextCommaIdx = payload.find(',', nextCommaIdx + 1);
+  std::string workspaceName = payload.substr(firstComma + 1, secondComma - firstComma - 1);
-  std::string workspaceName = payload.substr(lastCommaIdx + 1, nextCommaIdx - lastCommaIdx - 1);
+  std::string windowClass = payload.substr(secondComma + 1, thirdComma - secondComma - 1);
-
+  std::string windowTitle = payload.substr(thirdComma + 1);
-  lastCommaIdx = nextCommaIdx;
-  nextCommaIdx = payload.find(',', nextCommaIdx + 1);
-  std::string windowClass = payload.substr(lastCommaIdx + 1, nextCommaIdx - lastCommaIdx - 1);
-
-  std::string windowTitle = payload.substr(nextCommaIdx + 1, payload.length() - nextCommaIdx);
 
   bool isActive = m_currentActiveWindowAddress == windowAddress;
   m_windowsToCreate.emplace_back(workspaceName, windowAddress, windowClass, windowTitle, isActive);
@@ -631,6 +658,7 @@ auto Workspaces::parseConfig(const Json::Value &config) -> void {
   populateBoolConfig(config, "persistent-only", m_persistentOnly);
   populateBoolConfig(config, "active-only", m_activeOnly);
   populateBoolConfig(config, "move-to-monitor", m_moveToMonitor);
+  populateBoolConfig(config, "enable-bar-scroll", m_barScroll);
 
   m_persistentWorkspaceConfig = config.get("persistent-workspaces", Json::Value());
   populateSortByConfig(config);
@@ -934,7 +962,7 @@ void Workspaces::sortWorkspaces() {
           case SortMethod::NUMBER:
             try {
               return std::stoi(a->name()) < std::stoi(b->name());
-            } catch (const std::invalid_argument &) {
+            } catch (const std::exception& e) {
               // Handle the exception if necessary.
               break;
             }
@@ -988,10 +1016,12 @@ void Workspaces::sortWorkspaces() {
 
 void Workspaces::setUrgentWorkspace(std::string const& windowaddress) {
   const Json::Value clientsJson = m_ipc.getSocket1JsonReply("clients");
+  const std::string normalizedAddress =
+      windowaddress.starts_with("0x") ? windowaddress : fmt::format("0x{}", windowaddress);
   int workspaceId = -1;
 
-  for (Json::Value clientJson : clientsJson) {
+  for (const auto& clientJson : clientsJson) {
-    if (clientJson["address"].asString().ends_with(windowaddress)) {
+    if (clientJson["address"].asString() == normalizedAddress) {
       workspaceId = clientJson["workspace"]["id"].asInt();
       break;
     }
@@ -1120,7 +1150,11 @@ std::string Workspaces::makePayload(Args const &...args) {
 }
 
 std::pair<std::string, std::string> Workspaces::splitDoublePayload(std::string const& payload) {
-  const std::string part1 = payload.substr(0, payload.find(','));
+  const auto separator = payload.find(',');
+  if (separator == std::string::npos) {
+    throw std::invalid_argument("Expected a two-part Hyprland payload");
+  }
+  const std::string part1 = payload.substr(0, separator);
   const std::string part2 = payload.substr(part1.size() + 1);
   return {part1, part2};
 }
@@ -1129,6 +1163,9 @@ std::tuple<std::string, std::string, std::string> Workspaces::splitTriplePayload
     std::string const& payload) {
   const size_t firstComma = payload.find(',');
   const size_t secondComma = payload.find(',', firstComma + 1);
+  if (firstComma == std::string::npos || secondComma == std::string::npos) {
+    throw std::invalid_argument("Expected a three-part Hyprland payload");
+  }
 
   const std::string part1 = payload.substr(0, firstComma);
   const std::string part2 = payload.substr(firstComma + 1, secondComma - (firstComma + 1));
@@ -1146,4 +1183,31 @@ std::optional<int> Workspaces::parseWorkspaceId(std::string const &workspaceIdSt
   }
 }
 
+bool Workspaces::handleScroll(GdkEventScroll* e) {
+  // Ignore emulated scroll events on window
+  if (gdk_event_get_pointer_emulated((GdkEvent*)e)) {
+    return false;
+  }
+  auto dir = AModule::getScrollDir(e);
+  if (dir == SCROLL_DIR::NONE) {
+    return true;
+  }
+
+  if (dir == SCROLL_DIR::DOWN || dir == SCROLL_DIR::RIGHT) {
+    if (allOutputs()) {
+      IPC::dispatch("workspace", "e+1");
+    } else {
+      IPC::dispatch("workspace", "m+1");
+    }
+  } else if (dir == SCROLL_DIR::UP || dir == SCROLL_DIR::LEFT) {
+    if (allOutputs()) {
+      IPC::dispatch("workspace", "e-1");
+    } else {
+      IPC::dispatch("workspace", "m-1");
+    }
+  }
+
+  return true;
+}
+
 }  // namespace waybar::modules::hyprland

src/modules/image.cpp

@@ -14,22 +14,27 @@ waybar::modules::Image::Image(const std::string& id, const Json::Value& config)
 
   size_ = config["size"].asInt();
 
-  interval_ = config_["interval"] == "once"
+  const auto once = std::chrono::milliseconds::max();
-                  ? std::chrono::milliseconds::max()
+  if (!config_.isMember("interval") || config_["interval"].isNull() ||
-                  : std::chrono::milliseconds(std::max(
+      config_["interval"] == "once") {
-                        1L,  // Minimum 1ms due to millisecond precision
+    interval_ = once;
-                        static_cast<long>(
+  } else if (config_["interval"].isNumeric()) {
-                            (config_["interval"].isNumeric() ? config_["interval"].asDouble() : 0) *
+    const auto interval_seconds = config_["interval"].asDouble();
-                            1000)));
+    if (interval_seconds <= 0) {
+      interval_ = once;
+    } else {
+      interval_ =
+          std::chrono::milliseconds(std::max(1L,  // Minimum 1ms due to millisecond precision
+                                             static_cast<long>(interval_seconds * 1000)));
+    }
+  } else {
+    interval_ = once;
+  }
 
   if (size_ == 0) {
     size_ = 16;
   }
 
-  if (interval_.count() == 0) {
-    interval_ = std::chrono::milliseconds::max();
-  }
-
   delayWorker();
 }
 
@@ -41,7 +46,7 @@ void waybar::modules::Image::delayWorker() {
 }
 
 void waybar::modules::Image::refresh(int sig) {
-  if (sig == SIGRTMIN + config_["signal"].asInt()) {
+  if (config_["signal"].isInt() && sig == SIGRTMIN + config_["signal"].asInt()) {
     thread_.wake_up();
   }
 }

src/modules/inhibitor.cpp

@@ -85,7 +85,8 @@ auto getInhibitors(const Json::Value& config) -> std::string {
   if (config["what"].isArray()) {
     inhibitors = checkInhibitor(config["what"][0].asString());
     for (decltype(config["what"].size()) i = 1; i < config["what"].size(); ++i) {
-      inhibitors += ":" + checkInhibitor(config["what"][i].asString());
+      inhibitors.append(":");
+      inhibitors.append(checkInhibitor(config["what"][i].asString()));
     }
     return inhibitors;
   }
@@ -123,7 +124,7 @@ auto Inhibitor::update() -> void {
   label_.get_style_context()->add_class(status_text);
 
   if (tooltipEnabled()) {
-    label_.set_tooltip_text(status_text);
+    label_.set_tooltip_markup(status_text);
   }
 
   return ALabel::update();

src/modules/jack.cpp

@@ -53,7 +53,7 @@ std::string JACK::JACKState() {
 auto JACK::update() -> void {
   std::string format;
   std::string state = JACKState();
-  float latency = 1000 * (float)bufsize_ / (float)samplerate_;
+  float latency = samplerate_ > 0 ? 1000.0f * (float)bufsize_ / (float)samplerate_ : 0.0f;
 
   if (label_.get_style_context()->has_class("xrun")) {
     label_.get_style_context()->remove_class("xrun");
@@ -80,7 +80,7 @@ auto JACK::update() -> void {
   if (tooltipEnabled()) {
     std::string tooltip_format = "{bufsize}/{samplerate} {latency}ms";
     if (config_["tooltip-format"].isString()) tooltip_format = config_["tooltip-format"].asString();
-    label_.set_tooltip_text(fmt::format(
+    label_.set_tooltip_markup(fmt::format(
         fmt::runtime(tooltip_format), fmt::arg("load", std::round(load_)),
         fmt::arg("bufsize", bufsize_), fmt::arg("samplerate", samplerate_),
         fmt::arg("latency", fmt::format("{:.2f}", latency)), fmt::arg("xruns", xruns_)));
@@ -91,16 +91,19 @@ auto JACK::update() -> void {
 }
 
 int JACK::bufSize(jack_nframes_t size) {
+  std::lock_guard<std::mutex> lock(mutex_);
   bufsize_ = size;
   return 0;
 }
 
 int JACK::sampleRate(jack_nframes_t rate) {
+  std::lock_guard<std::mutex> lock(mutex_);
   samplerate_ = rate;
   return 0;
 }
 
 int JACK::xrun() {
+  std::lock_guard<std::mutex> lock(mutex_);
   xruns_ += 1;
   state_ = "xrun";
   return 0;

src/modules/keyboard_state.cpp

@@ -232,9 +232,12 @@ waybar::modules::KeyboardState::KeyboardState(const std::string& id, const Bar&
           }
           tryAddDevice(dev_path);
         } else if (event->mask & IN_DELETE) {
+          std::lock_guard<std::mutex> lock(devices_mutex_);
           auto it = libinput_devices_.find(dev_path);
           if (it != libinput_devices_.end()) {
             spdlog::info("Keyboard {} has been removed.", dev_path);
+            libinput_path_remove_device(it->second);
+            libinput_device_unref(it->second);
             libinput_devices_.erase(it);
           }
         }
@@ -245,6 +248,7 @@ waybar::modules::KeyboardState::KeyboardState(const std::string& id, const Bar&
 }
 
 waybar::modules::KeyboardState::~KeyboardState() {
+  std::lock_guard<std::mutex> lock(devices_mutex_);
   for (const auto& [_, dev_ptr] : libinput_devices_) {
     libinput_path_remove_device(dev_ptr);
   }
@@ -256,12 +260,18 @@ auto waybar::modules::KeyboardState::update() -> void {
 
   try {
     std::string dev_path;
+    {
+      std::lock_guard<std::mutex> lock(devices_mutex_);
+      if (libinput_devices_.empty()) {
+        return;
+      }
       if (config_["device-path"].isString() &&
           libinput_devices_.find(config_["device-path"].asString()) != libinput_devices_.end()) {
         dev_path = config_["device-path"].asString();
       } else {
         dev_path = libinput_devices_.begin()->first;
       }
+    }
     int fd = openFile(dev_path, O_NONBLOCK | O_CLOEXEC | O_RDONLY);
     auto dev = openDevice(fd);
     numl = libevdev_get_event_value(dev, EV_LED, LED_NUML);
@@ -308,10 +318,15 @@ auto waybar::modules ::KeyboardState::tryAddDevice(const std::string& dev_path)
     auto dev = openDevice(fd);
     if (supportsLockStates(dev)) {
       spdlog::info("Found device {} at '{}'", libevdev_get_name(dev), dev_path);
+      std::lock_guard<std::mutex> lock(devices_mutex_);
       if (libinput_devices_.find(dev_path) == libinput_devices_.end()) {
         auto device = libinput_path_add_device(libinput_, dev_path.c_str());
+        if (device) {
           libinput_device_ref(device);
           libinput_devices_[dev_path] = device;
+        } else {
+          spdlog::warn("keyboard-state: Failed to add device to libinput: {}", dev_path);
+        }
       }
     }
     libevdev_free(dev);

src/modules/load.cpp

@@ -22,7 +22,7 @@ auto waybar::modules::Load::update() -> void {
   auto [load1, load5, load15] = Load::getLoad();
   if (tooltipEnabled()) {
     auto tooltip = fmt::format("Load 1: {}\nLoad 5: {}\nLoad 15: {}", load1, load5, load15);
-    label_.set_tooltip_text(tooltip);
+    label_.set_tooltip_markup(tooltip);
   }
   auto format = format_;
   auto state = getState(load1);

src/modules/memory/common.cpp

@@ -1,11 +1,32 @@
 #include "modules/memory.hpp"
 
+namespace {
+const std::unordered_map<std::string, float> kUnits = {
+  {"kB", 1.000},
+  {"kiB", 1.024},
+  {"MB", 1.000 * 1000.0},
+  {"MiB", 1.024 * 1024.0},
+  {"GB", 1.000 * 1000.0 * 1000.0},
+  {"GiB", 1.024 * 1024.0 * 1024.0},
+  {"TB", 1.000 * 1000.0 * 1000.0 * 1000.0},
+  {"TiB", 1.024 * 1024.0 * 1024.0 * 1024.0}
+};
+}
+
 waybar::modules::Memory::Memory(const std::string& id, const Json::Value& config)
     : ALabel(config, "memory", id, "{}%", 30) {
   thread_ = [this] {
     dp.emit();
     thread_.sleep_for(interval_);
   };
+  if (config["unit"].isString()) {
+    unit_ = config["unit"].asString();
+    if (!kUnits.contains(unit_)) {
+      unit_ = "GiB";
+    }
+  } else {
+    unit_ = "GiB";
+  }
 }
 
 auto waybar::modules::Memory::update() -> void {
@@ -13,15 +34,15 @@ auto waybar::modules::Memory::update() -> void {
 
   unsigned long memtotal = meminfo_["MemTotal"];
   unsigned long swaptotal = 0;
-  if (meminfo_.count("SwapTotal")) {
+  if (meminfo_.contains("SwapTotal")) {
     swaptotal = meminfo_["SwapTotal"];
   }
   unsigned long memfree;
   unsigned long swapfree = 0;
-  if (meminfo_.count("SwapFree")) {
+  if (meminfo_.contains("SwapFree")) {
     swapfree = meminfo_["SwapFree"];
   }
-  if (meminfo_.count("MemAvailable")) {
+  if (meminfo_.contains("MemAvailable")) {
     // New kernels (3.4+) have an accurate available memory field.
     memfree = meminfo_["MemAvailable"] + meminfo_["zfs_size"];
   } else {
@@ -31,18 +52,19 @@ auto waybar::modules::Memory::update() -> void {
   }
 
   if (memtotal > 0 && memfree >= 0) {
-    float total_ram_gigabytes =
-        0.01 * round(memtotal / 10485.76);  // 100*10485.76 = 2^20 = 1024^2 = GiB/KiB
-    float total_swap_gigabytes = 0.01 * round(swaptotal / 10485.76);
     int used_ram_percentage = 100 * (memtotal - memfree) / memtotal;
     int used_swap_percentage = 0;
-    if (swaptotal) {
+    if ((bool) swaptotal) {
       used_swap_percentage = 100 * (swaptotal - swapfree) / swaptotal;
     }
-    float used_ram_gigabytes = 0.01 * round((memtotal - memfree) / 10485.76);
+
-    float used_swap_gigabytes = 0.01 * round((swaptotal - swapfree) / 10485.76);
+    float divisor = kUnits.at(unit_);
-    float available_ram_gigabytes = 0.01 * round(memfree / 10485.76);
+    float total_ram = memtotal / divisor;
-    float available_swap_gigabytes = 0.01 * round(swapfree / 10485.76);
+    float total_swap = swaptotal / divisor;
+    float used_ram = (memtotal - memfree) / divisor;
+    float used_swap = (swaptotal - swapfree) / divisor;
+    float available_ram = memfree / divisor;
+    float available_swap = swapfree / divisor;
 
     auto format = format_;
     auto state = getState(used_ram_percentage);
@@ -58,27 +80,27 @@ auto waybar::modules::Memory::update() -> void {
       label_.set_markup(fmt::format(
           fmt::runtime(format), used_ram_percentage,
           fmt::arg("icon", getIcon(used_ram_percentage, icons)),
-          fmt::arg("total", total_ram_gigabytes), fmt::arg("swapTotal", total_swap_gigabytes),
+          fmt::arg("total", total_ram), fmt::arg("swapTotal", total_swap),
           fmt::arg("percentage", used_ram_percentage),
           fmt::arg("swapState", swaptotal == 0 ? "Off" : "On"),
-          fmt::arg("swapPercentage", used_swap_percentage), fmt::arg("used", used_ram_gigabytes),
+          fmt::arg("swapPercentage", used_swap_percentage), fmt::arg("used", used_ram),
-          fmt::arg("swapUsed", used_swap_gigabytes), fmt::arg("avail", available_ram_gigabytes),
+          fmt::arg("swapUsed", used_swap), fmt::arg("avail", available_ram),
-          fmt::arg("swapAvail", available_swap_gigabytes)));
+          fmt::arg("swapAvail", available_swap)));
     }
 
     if (tooltipEnabled()) {
       if (config_["tooltip-format"].isString()) {
         auto tooltip_format = config_["tooltip-format"].asString();
-        label_.set_tooltip_text(fmt::format(
+        label_.set_tooltip_markup(fmt::format(
             fmt::runtime(tooltip_format), used_ram_percentage,
-            fmt::arg("total", total_ram_gigabytes), fmt::arg("swapTotal", total_swap_gigabytes),
+            fmt::arg("total", total_ram), fmt::arg("swapTotal", total_swap),
             fmt::arg("percentage", used_ram_percentage),
             fmt::arg("swapState", swaptotal == 0 ? "Off" : "On"),
-            fmt::arg("swapPercentage", used_swap_percentage), fmt::arg("used", used_ram_gigabytes),
+            fmt::arg("swapPercentage", used_swap_percentage), fmt::arg("used", used_ram),
-            fmt::arg("swapUsed", used_swap_gigabytes), fmt::arg("avail", available_ram_gigabytes),
+            fmt::arg("swapUsed", used_swap), fmt::arg("avail", available_ram),
-            fmt::arg("swapAvail", available_swap_gigabytes)));
+            fmt::arg("swapAvail", available_swap)));
       } else {
-        label_.set_tooltip_text(fmt::format("{:.{}f}GiB used", used_ram_gigabytes, 1));
+        label_.set_tooltip_markup(fmt::format("{:.{}f}{} used", used_ram, 1, unit_));
       }
     }
   } else {