Rename dbus from com.dec05eba.gsr_kwin_helper to com.dec05eba.gpu_screen_recorder.gsr_kwin_helper for flatpak access

This reverts commit ec98533f1b.

.gitignore

@@ -6,3 +6,6 @@ compile_commands.json
 **/xdg-output-unstable-v1-protocol.c
 
 depends/.wraplock
+
+.cache
+build/

README.md

@@ -27,6 +27,7 @@ These are the dependencies needed to build GPU Screen Recorder UI:
 * linux-api-headers
 * libpulse (libpulse-simple)
 * libdrm
+* libdbus
 * wayland (wayland-client, wayland-egl, wayland-scanner)
 * setcap (libcap)
 

include/HyprlandWorkaround.hpp

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <string>
+
+namespace gsr {
+    struct ActiveHyprlandWindow {
+        std::string window_id = "";
+        std::string title = "Game";
+    };
+
+    void start_hyprland_listener_thread();
+    std::string get_current_hyprland_window_title();
+}

include/KwinWorkaround.hpp

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <string>
+
+namespace gsr {
+    struct ActiveKwinWindow {
+        std::string title = "Game";
+    };
+
+    void start_kwin_helper_thread();
+    std::string get_current_kwin_window_title();
+}

include/Overlay.hpp

@@ -165,7 +165,7 @@ namespace gsr {
         bool update_compositor_texture(const Monitor &monitor);
 
         void add_region_command(std::vector<const char*> &args, char *region_str, int region_str_size);
-        void add_common_gpu_screen_recorder_args(std::vector<const char*> &args, const RecordOptions &record_options, const std::vector<std::string> &audio_tracks, const std::string &video_bitrate, const char *region, char *region_str, int region_str_size, const std::string &region_area_option);
+        void add_common_gpu_screen_recorder_args(std::vector<const char*> &args, const RecordOptions &record_options, const std::vector<std::string> &audio_tracks, const std::string &video_bitrate, const char *region, char *region_str, int region_str_size, const std::string &region_area_option, RecordForceType force_type = RecordForceType::NONE);
 
         std::string get_capture_target(const std::string &capture_target, const SupportedCaptureOptions &capture_options);
 

include/gui/SettingsPage.hpp

@@ -247,5 +247,7 @@ namespace gsr {
 
         std::optional<GsrCamera> selected_camera;
         std::optional<GsrCameraSetup> selected_camera_setup;
+
+        bool supports_window_title = false;
     };
 }

meson.build

@@ -1,4 +1,4 @@
-project('gsr-ui', ['c', 'cpp'], version : '1.10.2', default_options : ['warning_level=2', 'cpp_std=c++17'], subproject_dir : 'depends')
+project('gsr-ui', ['c', 'cpp'], version : '1.10.4', default_options : ['warning_level=2', 'cpp_std=c++17'], subproject_dir : 'depends')
 
 add_project_arguments('-D_FILE_OFFSET_BITS=64', language : ['c', 'cpp'])
 
@@ -41,6 +41,8 @@ src = [
     'src/CursorTracker/CursorTrackerX11.cpp',
     'src/CursorTracker/CursorTrackerWayland.cpp',
     'src/Utils.cpp',
+    'src/HyprlandWorkaround.cpp',
+    'src/KwinWorkaround.cpp',
     'src/WindowUtils.cpp',
     'src/RegionSelector.cpp',
     'src/WindowSelector.cpp',
@@ -68,7 +70,9 @@ gsr_ui_resources_path = join_paths(prefix, datadir, 'gsr-ui')
 icons_path = join_paths(prefix, datadir, 'icons')
 
 add_project_arguments('-DGSR_UI_VERSION="' + meson.project_version() + '"', language: ['c', 'cpp'])
-add_project_arguments('-DGSR_FLATPAK_VERSION="5.12.0"', language: ['c', 'cpp'])
+add_project_arguments('-DGSR_FLATPAK_VERSION="5.12.1"', language: ['c', 'cpp'])
+
+add_project_arguments('-DKWIN_HELPER_SCRIPT_PATH="' + gsr_ui_resources_path + '/gsrkwinhelper.js"', language: ['c', 'cpp'])
 
 executable(
     meson.project_name(),
@@ -111,6 +115,31 @@ executable(
     install : true
 )
 
+executable(
+    'gsr-kwin-helper',
+    [
+        'tools/gsr-kwin-helper/main.cpp'
+    ],
+    install : true,
+    dependencies: [
+        dependency('dbus-1'),
+    ]
+)
+
+install_data(
+    'tools/gsr-kwin-helper/gsrkwinhelper.js',
+    install_dir: gsr_ui_resources_path,
+    install_mode: 'rwxr-xr-x'
+)
+
+executable(
+    'gsr-hyprland-helper',
+    [
+        'tools/gsr-hyprland-helper/main.c'
+    ],
+    install : true
+)
+
 install_subdir('images', install_dir : gsr_ui_resources_path)
 install_subdir('fonts', install_dir : gsr_ui_resources_path)
 

project.conf

@@ -1,7 +1,7 @@
 [package]
 name = "gsr-ui"
 type = "executable"
-version = "1.10.2"
+version = "1.10.4"
 platforms = ["posix"]
 
 [lang.cpp]

src/HyprlandWorkaround.cpp

@@ -0,0 +1,62 @@
+#include "../include/HyprlandWorkaround.hpp"
+
+#include <iostream>
+#include <unistd.h>
+#include <thread>
+
+namespace gsr {
+    static ActiveHyprlandWindow active_hyprland_window;
+    static bool hyprland_listener_thread_started = false;
+
+    static void hyprland_listener_thread() {
+        const bool inside_flatpak = access("/app/manifest.json", F_OK) == 0;
+
+        const char *hyprland_helper_bin =
+            inside_flatpak ? 
+            "flatpak-spawn --host -- /var/lib/flatpak/app/com.dec05eba.gpu_screen_recorder/current/active/files/bin/gsr-hyprland-helper" 
+            : "gsr-hyprland-helper";
+
+        FILE* pipe = popen(hyprland_helper_bin, "r");
+        if (!pipe) {
+            std::cerr << "Failed to start gsr-hyprland-helper process\n";
+            return;
+        }
+
+        std::cerr << "Started Hyprland helper thread\n";
+
+        char buffer[4096];
+        const std::string prefix = "Window title changed: ";
+
+        std::string line;
+        while (fgets(buffer, sizeof(buffer), pipe) != nullptr) {
+            line = buffer;
+
+            if (!line.empty() && line.back() == '\n') {
+                line.pop_back();
+            }
+
+            size_t pos = line.find(prefix);
+            if (pos != std::string::npos) {
+                active_hyprland_window.title = line.substr(pos + prefix.length());
+            }
+        }
+
+        pclose(pipe);
+    }
+
+    std::string get_current_hyprland_window_title() {
+        return active_hyprland_window.title;
+    }
+
+    void start_hyprland_listener_thread() {
+        if (hyprland_listener_thread_started) {
+            return;
+        }
+
+        hyprland_listener_thread_started = true;
+
+        std::thread([&] {
+            hyprland_listener_thread();
+        }).detach();
+    }
+}

src/KwinWorkaround.cpp

@@ -0,0 +1,67 @@
+#include "../include/KwinWorkaround.hpp"
+
+#include <cstddef>
+#include <iostream>
+#include <sys/types.h>
+#include <thread>
+#include <cstdlib>
+#include <cstring>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+namespace gsr {
+    static ActiveKwinWindow active_kwin_window;
+    static bool kwin_helper_thread_started = false;
+
+    void kwin_script_thread() {
+        FILE* pipe = popen("gsr-kwin-helper", "r");
+        if (!pipe) {
+            std::cerr << "Failed to start gsr-kwin-helper process\n";
+            return;
+        }
+
+        std::cerr << "Started a KWin helper thread\n";
+
+        char buffer[4096];
+        const std::string prefix = "Active window title set to: ";
+
+        std::string line;
+        while (fgets(buffer, sizeof(buffer), pipe) != nullptr) {
+            line = buffer;
+
+            if (!line.empty() && line.back() == '\n') {
+                line.pop_back();
+            }
+
+            size_t pos = line.find(prefix);
+            if (pos != std::string::npos) {
+                std::string title = line.substr(pos + prefix.length());
+
+                if (title == "gsr ui" || title == "gsr notify") {
+                    continue; // ignore the overlay and notification
+                }
+
+                active_kwin_window.title = std::move(title);
+            }
+        }
+
+        pclose(pipe);
+    }
+
+    std::string get_current_kwin_window_title() {
+        return active_kwin_window.title;
+    }
+
+    void start_kwin_helper_thread() {
+        if (kwin_helper_thread_started) {
+            return;
+        }
+
+        kwin_helper_thread_started = true;
+
+        std::thread([&] {
+            kwin_script_thread();
+        }).detach();
+    }
+}

src/Overlay.cpp

@@ -10,6 +10,8 @@
 #include "../include/gui/ScreenshotSettingsPage.hpp"
 #include "../include/gui/GlobalSettingsPage.hpp"
 #include "../include/gui/Utils.hpp"
+#include "../include/KwinWorkaround.hpp"
+#include "../include/HyprlandWorkaround.hpp"
 #include "../include/gui/PageStack.hpp"
 #include "../include/WindowUtils.hpp"
 #include "../include/GlobalHotkeys/GlobalHotkeys.hpp"
@@ -548,6 +550,14 @@ namespace gsr {
                 save_config(config);
                 show_notification("Wayland doesn't support GPU Screen Recorder UI properly,\nthings may not work as expected. Use X11 if you experience issues.", notification_error_timeout_seconds, mgl::Color(255, 255, 255), mgl::Color(255, 0, 0), NotificationType::NOTICE, nullptr, NotificationLevel::ERROR);
             }
+
+            const std::string wm_name = get_window_manager_name(x11_dpy);
+
+            if (wm_name.find("Hyprland") != std::string::npos) {
+                start_hyprland_listener_thread();
+            } else if (wm_name == "KWin") {
+                start_kwin_helper_thread();
+            }
         }
 
         update_led_indicator_after_settings_change();
@@ -1053,8 +1063,9 @@ namespace gsr {
         // Wayland doesn't allow XGrabPointer/XGrabKeyboard when a wayland application is focused.
         // If the focused window is a wayland application then don't use override redirect and instead create
         // a fullscreen window for the ui.
+        const Window x11_focused_window = get_focused_window(display, WindowCaptureType::FOCUSED, false);
         const bool prevent_game_minimizing = gsr_info.system_info.display_server != DisplayServer::WAYLAND
-            || (x11_cursor_window && is_window_fullscreen_on_monitor(display, x11_cursor_window, *focused_monitor) && get_focused_window(display, WindowCaptureType::FOCUSED, false) == x11_cursor_window)
+            || (x11_focused_window && is_window_fullscreen_on_monitor(display, x11_focused_window, *focused_monitor))
             || is_wlroots
             || is_hyprland;
 
@@ -1092,7 +1103,6 @@ namespace gsr {
             window.reset();
             return;
         }
-
         //window->set_low_latency(true);
 
         unsigned char data = 2; // Prefer being composed to allow transparency
@@ -1964,11 +1974,24 @@ namespace gsr {
         mgl_context *context = mgl_get_context();
         Display *display = (Display*)context->connection;
         const std::string video_filename = filepath_get_filename(video_filepath.c_str());
+        
+        const std::string wm_name = get_window_manager_name(display);
+        const bool is_hyprland = wm_name.find("Hyprland") != std::string::npos;
+        const bool is_kwin_wayland = wm_name == "KWin" && gsr_info.system_info.display_server == DisplayServer::WAYLAND;
+
+        std::string focused_window_name;
+        if (is_hyprland) {
+            focused_window_name = get_current_hyprland_window_title();
+        } else if (is_kwin_wayland) {
+            focused_window_name = get_current_kwin_window_title();
+        } else {
+            const Window gsr_ui_window = window ? (Window)window->get_system_handle() : None;
+            focused_window_name = get_window_name_at_cursor_position(display, gsr_ui_window);
+
+            if(focused_window_name.empty())
+                focused_window_name = get_focused_window_name(display, WindowCaptureType::FOCUSED, false);
+        }
 
-        const Window gsr_ui_window = window ? (Window)window->get_system_handle() : None;
-        std::string focused_window_name = get_window_name_at_cursor_position(display, gsr_ui_window);
-        if(focused_window_name.empty())
-            focused_window_name = get_focused_window_name(display, WindowCaptureType::FOCUSED, false);
         if(focused_window_name.empty())
             focused_window_name = "Game";
 
@@ -2532,7 +2555,7 @@ namespace gsr {
         args.push_back(region_str);
     }
 
-    void Overlay::add_common_gpu_screen_recorder_args(std::vector<const char*> &args, const RecordOptions &record_options, const std::vector<std::string> &audio_tracks, const std::string &video_bitrate, const char *region, char *region_str, int region_str_size, const std::string &region_area_option) {
+    void Overlay::add_common_gpu_screen_recorder_args(std::vector<const char*> &args, const RecordOptions &record_options, const std::vector<std::string> &audio_tracks, const std::string &video_bitrate, const char *region, char *region_str, int region_str_size, const std::string &region_area_option, RecordForceType force_type) {
         if(record_options.video_quality == "custom") {
             args.push_back("-bm");
             args.push_back("cbr");
@@ -2553,7 +2576,7 @@ namespace gsr {
             args.push_back(audio_track.c_str());
         }
 
-        if(record_options.restore_portal_session) {
+        if(record_options.restore_portal_session && force_type != RecordForceType::WINDOW) {
             args.push_back("-restore-portal-session");
             args.push_back("yes");
         }
@@ -3146,8 +3169,17 @@ namespace gsr {
             "-o", output_file.c_str()
         };
 
+        const std::string hotkey_window_capture_portal_session_token_filepath = get_config_dir() + "/gsr-ui-window-capture-token";
+        if(record_area_option == "portal") {
+            hide_ui = true;
+            if(force_type == RecordForceType::WINDOW) {
+                args.push_back("-portal-session-token-filepath");
+                args.push_back(hotkey_window_capture_portal_session_token_filepath.c_str());
+            }
+        }
+
         char region_str[128];
-        add_common_gpu_screen_recorder_args(args, config.record_config.record_options, audio_tracks, video_bitrate, size, region_str, sizeof(region_str), record_area_option);
+        add_common_gpu_screen_recorder_args(args, config.record_config.record_options, audio_tracks, video_bitrate, size, region_str, sizeof(region_str), record_area_option, force_type);
 
         args.push_back(nullptr);
 
@@ -3180,9 +3212,6 @@ namespace gsr {
             show_notification(msg, short_notification_timeout_seconds, get_color_theme().tint_color, get_color_theme().tint_color, NotificationType::RECORD, recording_capture_target.c_str());
         }
 
-        if(record_area_option == "portal")
-            hide_ui = true;
-
         // TODO: This will be incorrect if the user uses portal capture, as capture wont start until the user has
         // selected what to capture and accepted it.
         recording_duration_clock.restart();

src/gui/SettingsPage.cpp

@@ -10,8 +10,13 @@
 #include "../../include/Theme.hpp"
 #include "../../include/GsrInfo.hpp"
 #include "../../include/Utils.hpp"
-#include "mglpp/window/Window.hpp"
-#include "mglpp/window/Event.hpp"
+#include "../../include/WindowUtils.hpp"
+
+#include <mglpp/window/Window.hpp>
+#include <mglpp/window/Event.hpp>
+extern "C" {
+#include <mgl/mgl.h>
+}
 
 #include <algorithm>
 #include <cmath>
@@ -46,6 +51,14 @@ namespace gsr {
         application_audio = get_application_audio();
         capture_options = get_supported_capture_options(*gsr_info);
 
+        mgl_context *context = mgl_get_context();
+        Display *display = (Display*)context->connection;
+
+        const std::string wm_name = get_window_manager_name(display);
+        const bool is_hyprland = wm_name.find("Hyprland") != std::string::npos;
+        const bool is_kwin = wm_name == "KWin";
+        supports_window_title = gsr_info->system_info.display_server == DisplayServer::X11 || is_hyprland || is_kwin;
+
         auto content_page = std::make_unique<GsrPage>(settings_page_type_to_title_text(type), "Settings");
         content_page->add_button("Back", "back", get_color_theme().page_bg_color);
         content_page->on_click = [page_stack](const std::string &id) {
@@ -1113,6 +1126,7 @@ namespace gsr {
     }
 
     std::unique_ptr<RadioButton> SettingsPage::create_start_replay_automatically() {
+        // TODO: Support kde plasma wayland and hyprland (same ones that support getting window title)
         char fullscreen_text[256];
         snprintf(fullscreen_text, sizeof(fullscreen_text), "Turn on replay when starting a fullscreen application%s", gsr_info->system_info.display_server == DisplayServer::X11 ? "" : " (X11 applications only)");
 
@@ -1127,7 +1141,7 @@ namespace gsr {
 
     std::unique_ptr<CheckBox> SettingsPage::create_save_replay_in_game_folder() {
         char text[256];
-        snprintf(text, sizeof(text), "Save video in a folder with the name of the game%s", gsr_info->system_info.display_server == DisplayServer::X11 ? "" : " (X11 applications only)");
+        snprintf(text, sizeof(text), "Save video in a folder with the name of the game%s", supports_window_title ? "" : " (X11 applications only)");
         auto checkbox = std::make_unique<CheckBox>(&get_theme().body_font, text);
         save_replay_in_game_folder_ptr = checkbox.get();
         return checkbox;
@@ -1216,9 +1230,9 @@ namespace gsr {
 
     std::unique_ptr<Widget> SettingsPage::create_low_power_mode() {
         auto list = std::make_unique<List>(List::Orientation::HORIZONTAL, List::Alignment::CENTER);
+        list->set_visible(gsr_info->gpu_info.vendor == GpuVendor::AMD);
 
         auto checkbox = std::make_unique<CheckBox>(&get_theme().body_font, "Record in low-power mode");
-        checkbox->set_visible(gsr_info->gpu_info.vendor == GpuVendor::AMD);
         low_power_mode_checkbox_ptr = checkbox.get();
 
         list->add_widget(std::move(checkbox));
@@ -1280,7 +1294,7 @@ namespace gsr {
 
     std::unique_ptr<CheckBox> SettingsPage::create_save_recording_in_game_folder() {
         char text[256];
-        snprintf(text, sizeof(text), "Save video in a folder with the name of the game%s", gsr_info->system_info.display_server == DisplayServer::X11 ? "" : " (X11 applications only)");
+        snprintf(text, sizeof(text), "Save video in a folder with the name of the game%s", supports_window_title ? "" : " (X11 applications only)");
         auto checkbox = std::make_unique<CheckBox>(&get_theme().body_font, text);
         save_recording_in_game_folder_ptr = checkbox.get();
         return checkbox;

tools/gsr-hyprland-helper/main.c

@@ -0,0 +1,95 @@
+#include <unistd.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+static bool get_hyprland_socket_path(char *path, int path_len) {
+    const char* xdg_runtime_dir = getenv("XDG_RUNTIME_DIR");
+    const char* instance_sig = getenv("HYPRLAND_INSTANCE_SIGNATURE");
+    if (!xdg_runtime_dir || !instance_sig) {
+        fprintf(stderr, "Error: gsr-hypland-helper: environment variables not set\n");
+        return false;
+    }
+    
+    if (snprintf(path, path_len, "%s/hypr/%s/.socket2.sock", xdg_runtime_dir, instance_sig) >= path_len) {
+        fprintf(stderr, "Error: gsr-hypland-helper: path to hyprland socket (%s/hypr/%s/.socket2.sock) is more than %d characters long\n", xdg_runtime_dir, instance_sig, path_len);
+        return false;
+    }
+
+    return true;
+}
+
+static void print_window_title(const char *window_title) {
+    if (window_title[0] == 0) {
+        printf("Window title changed: %s\n", "Desktop");
+        fflush(stdout);
+        return;
+    }
+    printf("Window title changed: %s\n", window_title);
+    fflush(stdout);
+}
+
+static int handle_ipc(void) {
+    const int sock_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+    if (sock_fd == -1) {
+        perror("Error: gsr-hyprland-helper: socket");
+        return 1;
+    }
+
+    struct sockaddr_un addr;
+    memset(&addr, 0, sizeof(addr));
+    addr.sun_family = AF_UNIX;
+
+    if (!get_hyprland_socket_path(addr.sun_path, sizeof(addr.sun_path))) {
+        return 1;
+    }
+
+    if (connect(sock_fd, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
+        perror("Error: gsr-hyprland-helper: connect");
+        close(sock_fd);
+        return 1;
+    }
+
+    fprintf(stderr, "Info: gsr-hyprland-helper: connected to Hyprland socket: %s\n", addr.sun_path);
+
+    FILE *sock_file = fdopen(sock_fd, "r");
+    if (!sock_file) {
+        perror("Error: gsr-hyprland-helper: fdopen");
+        close(sock_fd);
+        return 1;
+    }
+
+    char buffer[1024];
+    while (fgets(buffer, sizeof(buffer), sock_file)) {
+        int line_len = strlen(buffer);
+        if(line_len > 0 && buffer[line_len - 1] == '\n') {
+            buffer[line_len - 1] = '\0';
+            line_len -= 1;
+        }
+
+        if(line_len >= 14 && memcmp(buffer, "activewindow>>", 14) == 0) {
+            char *window_id = buffer + 14;
+            char *window_title = strchr(buffer + 14, ',');
+            if(!window_title)
+                continue;
+
+            window_title[0] = '\0';
+            window_title += 1;
+            if(strcmp(window_id, "gsr-ui") == 0 || strcmp(window_id, "gsr-notify") == 0)
+                continue;
+
+            print_window_title(window_title);
+        }
+    }
+    
+    fclose(sock_file);
+    return 0;
+}
+
+
+int main(void) {
+    return handle_ipc();
+}

tools/gsr-kwin-helper/gsrkwinhelper.js

@@ -0,0 +1,58 @@
+const DAEMON_DBUS_NAME = "com.dec05eba.gpu_screen_recorder.gsr_kwin_helper";
+
+// utils
+function sendNewActiveWindowTitle(title) {
+    callDBus(
+        DAEMON_DBUS_NAME, "/", DAEMON_DBUS_NAME,
+        "setActiveWindowTitle", title
+    );
+}
+
+function sendNewActiveWindowFullscreen(isFullscreen) {
+    callDBus(
+        DAEMON_DBUS_NAME, "/", DAEMON_DBUS_NAME,
+        "setActiveWindowFullscreen", isFullscreen
+    );
+}
+
+// track handlers to avoid duplicates
+const windowEventHandlers = new Map();
+
+function subscribeToClient(client) {
+    if (!client || windowEventHandlers.has(client)) return;
+
+    const emitActiveTitle = () => {
+        if (workspace.activeWindow === client) {
+            sendNewActiveWindowTitle(client.caption || "");
+        }
+    };
+
+    const emitActiveFullscreen = () => {
+        if (workspace.activeWindow === client) {
+            sendNewActiveWindowFullscreen(client.fullScreen);
+        }
+    };
+
+    windowEventHandlers.set(client, {
+        title: emitActiveTitle,
+        fs: emitActiveFullscreen,
+    });
+
+    client.captionChanged.connect(emitActiveTitle);
+    client.fullScreenChanged.connect(emitActiveFullscreen);
+}
+
+function updateActiveWindow(client) {
+    if (!client) return;
+    sendNewActiveWindowTitle(client.caption || "");
+    sendNewActiveWindowFullscreen(client.fullScreen);
+    subscribeToClient(client);
+}
+
+// handle window focus changes
+workspace.windowActivated.connect(updateActiveWindow);
+
+// handle initial state
+if (workspace.activeWindow) {
+    updateActiveWindow(workspace.activeWindow);
+}

tools/gsr-kwin-helper/main.cpp

@@ -0,0 +1,233 @@
+#include <dbus/dbus.h>
+#include <unistd.h>
+#include <iostream>
+#include <string>
+
+static const char* INTROSPECTION_XML =
+    "<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\"\n"
+    "\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
+    "<node>\n"
+    "  <interface name='com.dec05eba.gpu_screen_recorder.gsr_kwin_helper'>\n"
+    "    <method name='setActiveWindowTitle'>\n"
+    "      <arg type='s' name='title' direction='in'/>\n"
+    "    </method>\n"
+    "  </interface>\n"
+    "  <interface name='org.freedesktop.DBus.Introspectable'>\n"
+    "    <method name='Introspect'>\n"
+    "      <arg type='s' name='data' direction='out'/>\n"
+    "    </method>\n"
+    "  </interface>\n"
+    "</node>\n";
+
+
+class GsrKwinHelper {
+public:
+    std::string active_window_title;
+    DBusConnection* connection = nullptr;
+    DBusError err;
+
+    bool init() {
+        dbus_error_init(&err);
+
+        connection = dbus_bus_get(DBUS_BUS_SESSION, &err);
+        if (dbus_error_is_set(&err)) {
+            std::cerr << "Error: gsr-kwin-helper: failed to connect to session bus: " << err.message << "\n";
+            dbus_error_free(&err);
+            return false;
+        }
+
+        if (!connection) {
+            std::cerr << "Error: gsr-kwin-helper: connection is null\n";
+            return false;
+        }
+
+        int ret = dbus_bus_request_name(connection, "com.dec05eba.gpu_screen_recorder.gsr_kwin_helper",
+                                       DBUS_NAME_FLAG_REPLACE_EXISTING, &err);
+        if (dbus_error_is_set(&err)) {
+            std::cerr << "Error: gsr-kwin-helper: failed to request name: " << err.message << "\n";
+            dbus_error_free(&err);
+            return false;
+        }
+
+        if (ret != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
+            std::cerr << "Error: gsr-kwin-helper: not primary owner of the name\n";
+            return false;
+        }
+
+        std::cerr << "Info: gsr-kwin-helper: DBus server initialized on com.dec05eba.gpu_screen_recorder.gsr_kwin_helper\n";
+
+        const bool inside_flatpak = access("/app/manifest.json", F_OK) == 0;
+
+        const char *helper_path =
+            !inside_flatpak 
+            ? KWIN_HELPER_SCRIPT_PATH 
+            : "/var/lib/flatpak/app/com.dec05eba.gpu_screen_recorder/current/active/files/share/gsr-ui/gsrkwinhelper.js";
+
+        std::cerr << "Info: gsr-kwin-helper: KWin script path: " << helper_path << std::endl;
+
+        if (!load_kwin_script(connection, helper_path)) {
+            std::cerr << "Warning: gsr-kwin-helper: failed to load KWin script\n";
+        }
+
+        return true;
+    }
+
+    void run() {
+        while (true) {
+            dbus_connection_read_write(connection, 100);
+            DBusMessage* msg = dbus_connection_pop_message(connection);
+
+            if (!msg) {
+                continue;
+            }
+
+            if (dbus_message_is_method_call(msg, "org.freedesktop.DBus.Introspectable", "Introspect")) {
+                handle_introspect(msg);
+            } else if (dbus_message_is_method_call(msg, "com.dec05eba.gpu_screen_recorder.gsr_kwin_helper", "setActiveWindowTitle")) {
+                handle_set_title(msg);
+            }
+
+            dbus_message_unref(msg);
+        }
+    }
+
+    void handle_introspect(DBusMessage* msg) {
+        DBusMessage* reply = dbus_message_new_method_return(msg);
+        if (!reply) return;
+
+        DBusMessageIter args;
+        dbus_message_iter_init_append(reply, &args);
+        
+        if (!dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &INTROSPECTION_XML)) {
+            dbus_message_unref(reply);
+            return;
+        }
+
+        dbus_connection_send(connection, reply, nullptr);
+        dbus_connection_flush(connection);
+        dbus_message_unref(reply);
+    }
+
+    void handle_set_title(DBusMessage* msg) {
+        DBusMessageIter args;
+        const char* title = nullptr;
+
+        if (!dbus_message_iter_init(msg, &args)) {
+            send_error_reply(msg, "No arguments provided");
+            return;
+        }
+
+        if (dbus_message_iter_get_arg_type(&args) != DBUS_TYPE_STRING) {
+            send_error_reply(msg, "Expected string argument");
+            return;
+        }
+
+        dbus_message_iter_get_basic(&args, &title);
+        
+        if (title) {
+            active_window_title = title;
+            std::cout << "Active window title set to: " << active_window_title << "\n";
+            std::cout.flush();
+            send_success_reply(msg);
+        } else {
+            send_error_reply(msg, "Failed to read string");
+        }
+    }
+
+    void send_success_reply(DBusMessage* msg) {
+        DBusMessage* reply = dbus_message_new_method_return(msg);
+        if (reply) {
+            dbus_connection_send(connection, reply, nullptr);
+            dbus_connection_flush(connection);
+            dbus_message_unref(reply);
+        }
+    }
+
+    void send_error_reply(DBusMessage* msg, const char* error_msg) {
+        DBusMessage* reply = dbus_message_new_error(msg, "com.dec05eba.gpu_screen_recorder.gsr_kwin_helper.Error", error_msg);
+        if (reply) {
+            dbus_connection_send(connection, reply, nullptr);
+            dbus_connection_flush(connection);
+            dbus_message_unref(reply);
+        }
+    }
+
+    bool call_kwin_method(DBusConnection* conn, const char* method, 
+                      const char* arg1 = nullptr, const char* arg2 = nullptr) {
+        DBusMessage* msg = dbus_message_new_method_call(
+            "org.kde.KWin",        
+            "/Scripting",              
+            "org.kde.kwin.Scripting", 
+            method 
+        );
+        
+        if (!msg) {
+            std::cerr << "Error: gsr-kwin-helper: failed to create message for " << method << "\n";
+            return false;
+        }
+        
+        if (arg1) {
+            dbus_message_append_args(msg, DBUS_TYPE_STRING, &arg1, DBUS_TYPE_INVALID);
+            if (arg2) {
+                dbus_message_append_args(msg, DBUS_TYPE_STRING, &arg2, DBUS_TYPE_INVALID);
+            }
+        }
+        
+        DBusError err;
+        dbus_error_init(&err);
+        
+        // Send message and wait for reply (with 1 second timeout)
+        DBusMessage* reply = dbus_connection_send_with_reply_and_block(conn, msg, 1000, &err);
+        
+        dbus_message_unref(msg);
+        
+        if (dbus_error_is_set(&err)) {
+            std::cerr << "Error: gsr-kwin-helper: error calling " << method << ": " << err.message << "\n";
+            dbus_error_free(&err);
+            return false;
+        }
+        
+        if (reply) {
+            dbus_message_unref(reply);
+        }
+        
+        return true;
+    }
+
+    bool load_kwin_script(DBusConnection* conn, const char* script_path) {
+        // Unload existing script
+        call_kwin_method(conn, "unloadScript", "gsrkwinhelper");
+        
+        if (!call_kwin_method(conn, "loadScript", script_path, "gsrkwinhelper")) {
+            std::cerr << "Error: gsr-kwin-helper: failed to load KWin script\n";
+            return false;
+        }
+        
+        if (!call_kwin_method(conn, "start")) {
+            std::cerr << "Error: gsr-kwin-helper: failed to start KWin script\n";
+            return false;
+        }
+        
+        std::cerr << "Info: gsr-kwin-helper: KWin script loaded and started successfully\n";
+        return true;
+    }
+
+    ~GsrKwinHelper() {
+        if (connection) {
+            dbus_bus_release_name(connection, "com.dec05eba.gpu_screen_recorder.gsr_kwin_helper", nullptr);
+            dbus_connection_unref(connection);
+        }
+    }
+};
+
+int main() {
+    GsrKwinHelper helper;
+    
+    if (!helper.init()) {
+        return 1;
+    }
+
+    helper.run();
+    
+    return 0;
+}