Hyprland IPC improvements

Fixes IPC being blocked at shutdown

include/modules/hyprland/backend.hpp

@@ -5,6 +5,7 @@
 #include <memory>
 #include <mutex>
 #include <string>
+#include <thread>
 #include <utility>
 
 #include "util/json.hpp"
@@ -19,7 +20,9 @@ class EventHandler {
 
 class IPC {
  public:
-  IPC() { startIPC(); }
+  IPC();
+  ~IPC();
+  static IPC& inst();
 
   void registerForIPC(const std::string& ev, EventHandler* ev_handler);
   void unregisterForIPC(EventHandler* handler);
@@ -32,14 +35,16 @@ class IPC {
   static std::filesystem::path socketFolder_;
 
  private:
-  void startIPC();
+  void socketListener();
   void parseIPC(const std::string&);
 
+  std::jthread ipcThread_;
   std::mutex callbackMutex_;
   util::JsonParser parser_;
   std::list<std::pair<std::string, EventHandler*>> callbacks_;
+  int socketfd_;  // the hyprland socket file descriptor
+  bool running_ = true;
 };
 
-inline std::unique_ptr<IPC> gIPC;
 inline bool modulesReady = false;
 };  // namespace waybar::modules::hyprland

include/modules/hyprland/language.hpp

@@ -37,6 +37,8 @@ class Language : public waybar::ALabel, public EventHandler {
   util::JsonParser parser_;
 
   Layout layout_;
+
+  IPC& m_ipc;
 };
 
 }  // namespace waybar::modules::hyprland

include/modules/hyprland/submap.hpp

@@ -28,6 +28,8 @@ class Submap : public waybar::ALabel, public EventHandler {
   std::string submap_;
   bool always_on_ = false;
   std::string default_submap_ = "Default";
+
+  IPC& m_ipc;
 };
 
 }  // namespace waybar::modules::hyprland

include/modules/hyprland/window.hpp

@@ -60,6 +60,8 @@ class Window : public waybar::AAppIconLabel, public EventHandler {
   bool swallowing_;
   bool fullscreen_;
   bool focused_;
+
+  IPC& m_ipc;
 };
 
 }  // namespace waybar::modules::hyprland

include/modules/hyprland/workspace.hpp

@@ -83,6 +83,7 @@ class Workspace {
   Gtk::Button m_button;
   Gtk::Box m_content;
   Gtk::Label m_label;
+  IPC& m_ipc;
 };
 
 }  // namespace waybar::modules::hyprland

include/modules/hyprland/workspaces.hpp

@@ -150,6 +150,7 @@ class Workspaces : public AModule, public EventHandler {
   std::mutex m_mutex;
   const Bar& m_bar;
   Gtk::Box m_box;
+  IPC& m_ipc;
 };
 
 }  // namespace waybar::modules::hyprland