Update to version 2.0. Port to GTK4.

Makefile

@@ -2,8 +2,11 @@
 CC = gcc
 
 # Compiler and optimization flags
-CFLAGS = `pkg-config --cflags gtk+-3.0` -O3
+CFLAGS ?= -Wall -O2
-LDFLAGS = `pkg-config --libs gtk+-3.0`
+CFLAGS += $(shell pkg-config --cflags gtk4)
+CFLAGS += -DGDK_VERSION_MAX_ALLOWED=GDK_VERSION_4_0 -DGDK_VERSION_MIN_REQUIRED=GDK_VERSION_4_0
+LDFLAGS ?=
+LDFLAGS += $(shell pkg-config --libs gtk4)
 
 # Source files
 SRC = ssdd.c resources.c
@@ -35,15 +38,15 @@ $(RESOURCE_C) $(RESOURCE_H): $(RESOURCE_XML)
 
 # Install target
 install: $(TARGET)
-	install -d $(BINDIR)
+	install -d $(DESTDIR)$(BINDIR)
-	install -m 755 $(TARGET) $(BINDIR)
+	install -m 755 $(TARGET) $(DESTDIR)$(BINDIR)
-	install -d $(DATADIR)
+	install -d $(DESTDIR)$(DATADIR)
-	install -m 644 $(RESOURCE_XML) $(DATADIR)
+	install -m 644 $(RESOURCE_XML) $(DESTDIR)$(DATADIR)
 
 # Uninstall target
 uninstall:
-	rm -f $(BINDIR)/$(TARGET)
+	rm -f $(DESTDIR)$(BINDIR)/$(TARGET)
-	rm -rf $(DATADIR)
+	rm -rf $(DESTDIR)$(DATADIR)
 
 # Clean target
 clean:

README.md

@@ -1,12 +1,14 @@
 # ssdd: Simple Shutdown Dialog for Openbox
 
-A simple Shutdown Dialog for Openbox written in C using GTK 
+A simple Shutdown Dialog for Openbox written in C using GTK 4
 
 ![Project Screenshot](ssdd.png)
 
 ![Settings screenshot](ssdd-settings.png)
 
-**Simple Shutdown Dialog (ssdd)** is a simple yet stylish shutdown dialog for Openbox, crafted in C using GTK.
+![Settings screenshot](ssdd-about.png)
+
+**Simple Shutdown Dialog (ssdd)** is a simple yet stylish shutdown dialog for Openbox, crafted in C using GTK 4.
 
 ## Why ssdd?
 
@@ -16,15 +18,16 @@ Inspired by the elegant `ssd` from Sawfish, I decided to create my own tailored
 
 ## Features
 
-* **Clean and Intuitive Interface:** ssdd presents a clear choice between Shutdown, Reboot, Logout, and Exit options.
+- **Clean and Intuitive Interface:** ssdd presents clear options for Logout, Reboot, Shutdown, Switch User, Suspend, Hibernate, Settings, and Exit.
-* **Clean and minimal code:** `ssdd` is built on a clean and minimal codebase, making it easy to maintain, understand, and extend.
+- **Configurable Commands:** Easily customize the commands executed for each action via the settings dialog.
-* **Lightweight and Efficient:** ssdd is designed to be fast and resource-friendly, perfectly suited for Openbox's minimalist philosophy.
+- **Lightweight and Efficient:** Designed to be fast and resource-friendly, perfectly suited for Openbox's minimalist philosophy.
+- **Modern GTK 4 Interface:** Built with GTK 4 for a modern look and feel.
 
 ## Dependencies and Compilation
 
 ssdd requires:
 
-* GTK+ 3.0
+* GTK 4 development libraries
 * Glib 2 development libraries
 * gcc or clang
 
@@ -49,10 +52,10 @@ First generate the resources.
 
 ```bash
 # Using GCC:
-% gcc ssdd.c resources.c -o ssdd `pkg-config --cflags --libs gtk+-3.0`
+% gcc ssdd.c resources.c -o ssdd `pkg-config --cflags --libs gtk4`
 
 # Using Clang:
-% clang ssdd.c resources.c -o ssdd `pkg-config --cflags --libs gtk+-3.0`
+% clang ssdd.c resources.c -o ssdd `pkg-config --cflags --libs gtk4`
 ```
 
 Place the `ssdd` binary in your `$PATH` (e.g., `~/bin`).
@@ -80,3 +83,4 @@ Place the `ssdd` binary in your `$PATH` (e.g., `~/bin`).
 ### Contributing
 
 Contributions are welcome! Feel free to open issues or submit pull requests.
+

ssdd.c

@@ -1,74 +1,93 @@
 #include <gtk/gtk.h>
-#include <glib.h>
 #include <glib/gstdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include "resources.h"
 
-// Function declarations (prototypes)
+// Function declarations
-static void execute_command(const gchar *command);
+static void execute_command(const gchar *command, GtkWindow *parent);
-static void show_settings_dialog(GtkWidget *widget);
+static void show_settings_dialog(GtkWindow *parent);
 static void show_about_tab(GtkWidget *box);
 static void show_settings_tab(GtkWidget *box);
 static void button_clicked(GtkWidget *widget, gpointer data);
-static gboolean on_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data);
+static gboolean on_key_pressed(GtkEventControllerKey *controller, guint keyval, guint keycode, GdkModifierType state, gpointer user_data);
-static void show_confirmation_dialog(GtkWidget *widget, const gchar *label, const gchar *command);
+static void show_confirmation_dialog(GtkWindow *parent_window, const gchar *label, const gchar *command);
 static void create_button(GtkWidget *grid, GtkApplication *app, const gchar *label_text, const gchar *icon_name, const gchar *command, int pos);
 static void save_configuration(const gchar *commands[]);
 static void load_configuration(gchar *commands[]);
+static gchar *get_config_path(void);
+static gchar *get_config_dir(void);
+static void on_save_button_clicked(GtkButton *button, gpointer user_data);
+static void on_confirmation_response(GtkDialog *dialog, gint response_id, gpointer user_data);
 
-#define CONFIG_PATH g_build_filename(g_get_home_dir(), ".config/ssdd/config", NULL)
+static gchar *get_config_dir(void) {
-#define CONFIG_DIR g_build_filename(g_get_home_dir(), ".config/ssdd", NULL)
+    return g_build_filename(g_get_user_config_dir(), "ssdd", NULL);
+}
 
-static void execute_command(const gchar *command) {
+static gchar *get_config_path(void) {
+    return g_build_filename(g_get_user_config_dir(), "ssdd", "config", NULL);
+}
+
+static void execute_command(const gchar *command, GtkWindow *parent) {
     GError *error = NULL;
     gboolean ret = g_spawn_command_line_async(command, &error);
     if (!ret) {
-        GtkWidget *dialog;
+        gchar *error_message = g_strdup_printf("Error executing command '%s': %s", command, error->message);
-        dialog = gtk_message_dialog_new(NULL,
+
-                                        GTK_DIALOG_DESTROY_WITH_PARENT,
+        GtkWidget *dialog = gtk_message_dialog_new(parent,
-                                        GTK_MESSAGE_ERROR,
+                                                   GTK_DIALOG_MODAL,
-                                        GTK_BUTTONS_CLOSE,
+                                                   GTK_MESSAGE_ERROR,
-                                        "Error executing command: %s\n%s",
+                                                   GTK_BUTTONS_CLOSE,
-                                        command,
+                                                   "%s", error_message);
-                                        error->message);
+        g_signal_connect(dialog, "response", G_CALLBACK(gtk_window_destroy), NULL);
-        gtk_dialog_run(GTK_DIALOG(dialog));
+        gtk_window_present(GTK_WINDOW(dialog));
-        gtk_widget_destroy(dialog);
+
+        g_free(error_message);
         g_error_free(error);
     }
 }
 
-static void show_settings_dialog(GtkWidget *widget) {
+static void show_settings_dialog(GtkWindow *parent) {
     GtkWidget *dialog;
     GtkWidget *content_area;
     GtkWidget *notebook;
     GtkWidget *settings_tab;
     GtkWidget *about_tab;
-    GtkWidget *close_button;
 
-    dialog = gtk_dialog_new_with_buttons("Settings",
+    dialog = gtk_dialog_new();
-                                         NULL,
+    gtk_window_set_title(GTK_WINDOW(dialog), "Settings");
-                                         GTK_DIALOG_DESTROY_WITH_PARENT,
+    gtk_window_set_transient_for(GTK_WINDOW(dialog), parent);
-                                         NULL);
+    gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
-    content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+    gtk_window_set_destroy_with_parent(GTK_WINDOW(dialog), TRUE);
+
+    content_area = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
+    gtk_window_set_child(GTK_WINDOW(dialog), content_area);
 
     notebook = gtk_notebook_new();
-    gtk_box_pack_start(GTK_BOX(content_area), notebook, TRUE, TRUE, 0);
+    gtk_box_append(GTK_BOX(content_area), notebook);
 
     settings_tab = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
-    gtk_container_set_border_width(GTK_CONTAINER(settings_tab), 10);
+    gtk_widget_set_margin_top(settings_tab, 10);
+    gtk_widget_set_margin_bottom(settings_tab, 10);
+    gtk_widget_set_margin_start(settings_tab, 10);
+    gtk_widget_set_margin_end(settings_tab, 10);
     gtk_notebook_append_page(GTK_NOTEBOOK(notebook), settings_tab, gtk_label_new("Settings"));
 
     about_tab = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
-    gtk_container_set_border_width(GTK_CONTAINER(about_tab), 10);
+    gtk_widget_set_margin_top(about_tab, 10);
+    gtk_widget_set_margin_bottom(about_tab, 10);
+    gtk_widget_set_margin_start(about_tab, 10);
+    gtk_widget_set_margin_end(about_tab, 10);
     gtk_notebook_append_page(GTK_NOTEBOOK(notebook), about_tab, gtk_label_new("About"));
 
     show_settings_tab(settings_tab);
     show_about_tab(about_tab);
 
-    close_button = gtk_button_new_with_label("Close");
+    GtkWidget *close_button = gtk_button_new_with_label("Close");
-    g_signal_connect_swapped(close_button, "clicked", G_CALLBACK(gtk_widget_destroy), dialog);
+    gtk_box_append(GTK_BOX(content_area), close_button);
-    gtk_box_pack_start(GTK_BOX(content_area), close_button, FALSE, FALSE, 10);
+    g_signal_connect_swapped(close_button, "clicked", G_CALLBACK(gtk_window_destroy), dialog);
 
-    gtk_widget_show_all(dialog);
+    gtk_window_present(GTK_WINDOW(dialog));
 }
 
 static void show_settings_tab(GtkWidget *box) {
@@ -85,133 +104,146 @@ static void show_settings_tab(GtkWidget *box) {
     load_configuration(commands);
 
     GtkWidget *grid = gtk_grid_new();
-    gtk_grid_set_row_spacing(GTK_GRID(grid), 10); // Space between rows
+    gtk_grid_set_row_spacing(GTK_GRID(grid), 10);
-    gtk_grid_set_column_spacing(GTK_GRID(grid), 10); // Space between columns
+    gtk_grid_set_column_spacing(GTK_GRID(grid), 10);
-    gtk_box_pack_start(GTK_BOX(box), grid, TRUE, TRUE, 0);
+    gtk_box_append(GTK_BOX(box), grid);
+
+    GtkWidget **entries = g_new(GtkWidget*, 6);
 
     for (int i = 0; i < 6; i++) {
         GtkWidget *label = gtk_label_new(labels[i]);
         GtkWidget *entry = gtk_entry_new();
-        gtk_entry_set_text(GTK_ENTRY(entry), commands[i]);
+        gtk_editable_set_text(GTK_EDITABLE(entry), commands[i]);
-        gtk_widget_set_hexpand(entry, TRUE); // Allow the entry to expand
+        gtk_widget_set_hexpand(entry, TRUE);
-        gtk_widget_set_halign(label, GTK_ALIGN_END); // Align the label to the end
+        gtk_widget_set_halign(label, GTK_ALIGN_END);
 
         gtk_grid_attach(GTK_GRID(grid), label, 0, i, 1, 1);
         gtk_grid_attach(GTK_GRID(grid), entry, 1, i, 1, 1);
+
+        entries[i] = entry;
     }
 
+    GtkWidget *save_button = gtk_button_new_with_label("Save");
+    g_object_set_data_full(G_OBJECT(save_button), "entries", entries, (GDestroyNotify)g_free);
+    g_signal_connect(save_button, "clicked", G_CALLBACK(on_save_button_clicked), NULL);
+    gtk_box_append(GTK_BOX(box), save_button);
+
     for (int i = 0; i < 6; i++) {
         g_free(commands[i]);
     }
 }
 
+static void on_save_button_clicked(GtkButton *button, gpointer user_data) {
+    GtkWidget **entries = g_object_get_data(G_OBJECT(button), "entries");
+    const gchar *commands[6];
+
+    for (int i = 0; i < 6; i++) {
+        commands[i] = gtk_editable_get_text(GTK_EDITABLE(entries[i]));
+    }
+
+    save_configuration(commands);
+}
+
 static void show_about_tab(GtkWidget *box) {
     GtkWidget *label;
     GtkWidget *image;
     const gchar *about_text =
         "\n<b>About Simple ShutDown Dialog</b>\n\n"
-        "<b>Version:</b> 1.6\n"
+        "<b>Version:</b> 2.0\n"
         "<b>Author:</b> kekePower\n"
         "<b>URL: </b><a href=\"https://git.kekepower.com/kekePower/ssdd\">https://git.kekepower.com/kekePower/ssdd</a>\n"
-        "<b>Description:</b> This is a Simple ShutDown Dialog for Openbox.\n";
+        "<b>Description:</b> A Simple ShutDown Dialog for Openbox.\n";
 
     image = gtk_image_new_from_resource("/org/gtk/ssdd/ssdd-icon.png");
     gtk_image_set_pixel_size(GTK_IMAGE(image), 250);
-    gtk_box_pack_start(GTK_BOX(box), image, FALSE, FALSE, 0);
+    gtk_box_append(GTK_BOX(box), image);
 
     label = gtk_label_new(NULL);
     gtk_label_set_markup(GTK_LABEL(label), about_text);
     gtk_label_set_selectable(GTK_LABEL(label), TRUE);
     gtk_widget_set_halign(label, GTK_ALIGN_START);
     gtk_widget_set_valign(label, GTK_ALIGN_START);
-    gtk_box_pack_start(GTK_BOX(box), label, TRUE, TRUE, 0);
+    gtk_box_append(GTK_BOX(box), label);
 }
 
 static void button_clicked(GtkWidget *widget, gpointer data) {
     const gchar *command = (const gchar *)data;
     const gchar *label = g_object_get_data(G_OBJECT(widget), "label");
+    GtkApplication *app = g_object_get_data(G_OBJECT(widget), "app");
+    GtkWindow *parent_window = GTK_WINDOW(gtk_widget_get_root(widget));
 
     if (g_strcmp0(command, "exit") == 0) {
-        g_application_quit(G_APPLICATION(g_object_get_data(G_OBJECT(widget), "app")));
+        g_application_quit(G_APPLICATION(app));
         return;
     }
 
     if (g_strcmp0(command, "settings") == 0) {
-        show_settings_dialog(widget);
+        show_settings_dialog(parent_window);
     } else {
-        GtkWidget *window = gtk_widget_get_toplevel(widget);
+        show_confirmation_dialog(parent_window, label, command);
-        show_confirmation_dialog(window, label, command);
     }
 }
 
-static gboolean on_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data) {
+static gboolean on_key_pressed(GtkEventControllerKey *controller, guint keyval, guint keycode, GdkModifierType state, gpointer user_data) {
-    if (event->keyval == GDK_KEY_Escape) {
+    if (keyval == GDK_KEY_Escape) {
-        g_application_quit(G_APPLICATION(data));
+        GtkApplication *app = GTK_APPLICATION(user_data);
-        return TRUE; // Event handled
+        g_application_quit(G_APPLICATION(app));
+        return TRUE;
     }
-    return FALSE; // Event not handled
+    return FALSE;
 }
 
-static void show_confirmation_dialog(GtkWidget *parent_window, const gchar *label, const gchar *command) {
+static void show_confirmation_dialog(GtkWindow *parent_window, const gchar *label, const gchar *command) {
     GtkWidget *dialog;
-    gint response;
-
     gchar *message = g_strdup_printf("Are you sure you want to %s?", label);
 
-    dialog = gtk_dialog_new();
+    dialog = gtk_message_dialog_new(parent_window,
-    gtk_window_set_title(GTK_WINDOW(dialog), "Confirmation");
+                                    GTK_DIALOG_MODAL,
+                                    GTK_MESSAGE_QUESTION,
+                                    GTK_BUTTONS_YES_NO,
+                                    "%s", message);
 
-    gtk_window_set_transient_for(GTK_WINDOW(dialog), GTK_WINDOW(parent_window));
+    // Pass the command via g_object_set_data
+    g_object_set_data_full(G_OBJECT(dialog), "command", g_strdup(command), g_free);
 
-    gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
+    g_signal_connect(dialog, "response", G_CALLBACK(on_confirmation_response), NULL);
-    gtk_window_set_destroy_with_parent(GTK_WINDOW(dialog), TRUE);
 
-    GtkWidget *content_area = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+    gtk_window_present(GTK_WINDOW(dialog));
-    GtkWidget *box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 10);
-    gtk_container_add(GTK_CONTAINER(content_area), box);
-
-    GtkWidget *image = gtk_image_new_from_icon_name("dialog-warning", GTK_ICON_SIZE_DIALOG);
-    gtk_box_pack_start(GTK_BOX(box), image, FALSE, FALSE, 0);
-
-    GtkWidget *label_widget = gtk_label_new(message);
-    gtk_box_pack_start(GTK_BOX(box), label_widget, TRUE, TRUE, 0);
-
-    gtk_dialog_add_buttons(GTK_DIALOG(dialog),
-                           "Yes", GTK_RESPONSE_YES,
-                           "No", GTK_RESPONSE_NO,
-                           NULL);
-
-    GtkWidget *button_box = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
-    gtk_box_set_spacing(GTK_BOX(button_box), 10);
-    gtk_widget_set_margin_top(button_box, 10);
-
-    gtk_widget_show_all(dialog);
-
-    response = gtk_dialog_run(GTK_DIALOG(dialog));
-    gtk_widget_destroy(dialog);
     g_free(message);
-
-    if (response == GTK_RESPONSE_YES) {
-        execute_command(command);
-    }
 }
 
-static void create_button(GtkWidget *grid, GtkApplication *app, const gchar *label_text, const gchar *icon_name, const gchar *command, int pos) {
+static void on_confirmation_response(GtkDialog *dialog, gint response_id, gpointer user_data) {
+    if (response_id == GTK_RESPONSE_YES) {
+        const gchar *command = g_object_get_data(G_OBJECT(dialog), "command");
+        GtkWindow *parent = GTK_WINDOW(gtk_window_get_transient_for(GTK_WINDOW(dialog)));
+        execute_command(command, parent);
+    }
+    gtk_window_destroy(GTK_WINDOW(dialog));
+}
+
+static void create_button(GtkWidget *grid, GtkApplication *app, const gchar *label_text,
+                          const gchar *icon_name, const gchar *command, int pos) {
     GtkWidget *button;
     GtkWidget *box;
     GtkWidget *image;
     GtkWidget *label;
 
     button = gtk_button_new();
-    box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 10);
+    gtk_widget_set_hexpand(button, TRUE); // Allow button to expand horizontally
-    gtk_container_add(GTK_CONTAINER(button), box);
+    gtk_widget_set_vexpand(button, TRUE); // Allow button to expand vertically
 
-    image = gtk_image_new_from_icon_name(icon_name, GTK_ICON_SIZE_BUTTON);
+    box = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0); // Set spacing to 0 for tighter layout
-    gtk_box_pack_start(GTK_BOX(box), image, TRUE, TRUE, 0);
+    gtk_widget_set_valign(box, GTK_ALIGN_CENTER);   // Center the content vertically
+    gtk_widget_set_halign(box, GTK_ALIGN_CENTER);   // Center the content horizontally
+    gtk_button_set_child(GTK_BUTTON(button), box);
+
+    image = gtk_image_new_from_icon_name(icon_name);
+    gtk_box_append(GTK_BOX(box), image);
 
     label = gtk_label_new(label_text);
-    gtk_box_pack_start(GTK_BOX(box), label, TRUE, TRUE, 0);
+    gtk_box_append(GTK_BOX(box), label);
 
+    // Reduce margins around the button content
     gtk_widget_set_margin_top(box, 5);
     gtk_widget_set_margin_bottom(box, 5);
     gtk_widget_set_margin_start(box, 5);
@@ -220,12 +252,16 @@ static void create_button(GtkWidget *grid, GtkApplication *app, const gchar *lab
     g_object_set_data(G_OBJECT(button), "app", app);
     g_object_set_data(G_OBJECT(button), "label", (gpointer)label_text);
     g_signal_connect(button, "clicked", G_CALLBACK(button_clicked), (gpointer)command);
+
     gtk_grid_attach(GTK_GRID(grid), button, pos % 4, pos / 4, 1, 1);
 }
 
 static void save_configuration(const gchar *commands[]) {
     GError *error = NULL;
-    g_mkdir_with_parents(CONFIG_DIR, 0755);
+    gchar *config_dir = get_config_dir();
+    gchar *config_path = get_config_path();
+
+    g_mkdir_with_parents(config_dir, 0755);
 
     GString *config_data = g_string_new(NULL);
     g_string_append_printf(config_data, "LOGOUT_COMMAND=%s\n", commands[0]);
@@ -235,7 +271,7 @@ static void save_configuration(const gchar *commands[]) {
     g_string_append_printf(config_data, "SUSPEND_COMMAND=%s\n", commands[4]);
     g_string_append_printf(config_data, "HIBERNATE_COMMAND=%s\n", commands[5]);
 
-    g_file_set_contents(CONFIG_PATH, config_data->str, -1, &error);
+    g_file_set_contents(config_path, config_data->str, -1, &error);
 
     if (error) {
         g_warning("Failed to save configuration: %s", error->message);
@@ -243,15 +279,20 @@ static void save_configuration(const gchar *commands[]) {
     }
 
     g_string_free(config_data, TRUE);
+    g_free(config_dir);
+    g_free(config_path);
 }
 
 static void load_configuration(gchar *commands[]) {
     GError *error = NULL;
     gchar *config_data = NULL;
+    gchar *config_dir = get_config_dir();
+    gchar *config_path = get_config_path();
 
-    g_mkdir_with_parents(CONFIG_DIR, 0755);
+    g_mkdir_with_parents(config_dir, 0755);
 
-    if (!g_file_test(CONFIG_PATH, G_FILE_TEST_EXISTS)) {
+    if (!g_file_test(config_path, G_FILE_TEST_EXISTS)) {
+        g_warning("Configuration file not found. Generating a default configuration.");
         const gchar *default_commands[] = {
             "openbox --exit",
             "systemctl reboot",
@@ -263,17 +304,33 @@ static void load_configuration(gchar *commands[]) {
         save_configuration(default_commands);
     }
 
-    g_file_get_contents(CONFIG_PATH, &config_data, NULL, &error);
+    if (!g_file_get_contents(config_path, &config_data, NULL, &error)) {
-
-    if (error) {
         g_warning("Failed to load configuration: %s", error->message);
         g_error_free(error);
+        g_free(config_dir);
+        g_free(config_path);
         return;
     }
 
     gchar **lines = g_strsplit(config_data, "\n", -1);
     for (int i = 0; i < 6; i++) {
         gchar **key_value = g_strsplit(lines[i], "=", 2);
+
+        if (!key_value[0] || !key_value[1]) {
+            g_warning("Invalid entry in configuration file at line %d. Using default command.", i + 1);
+            const gchar *default_commands[] = {
+                "openbox --exit",
+                "systemctl reboot",
+                "systemctl poweroff",
+                "dm-tool switch-to-greeter",
+                "systemctl suspend",
+                "systemctl hibernate"
+            };
+            commands[i] = g_strdup(default_commands[i]);
+            g_strfreev(key_value);
+            continue;
+        }
+
         if (g_strcmp0(key_value[0], "LOGOUT_COMMAND") == 0) {
             commands[0] = g_strdup(key_value[1]);
         } else if (g_strcmp0(key_value[0], "REBOOT_COMMAND") == 0) {
@@ -286,12 +343,32 @@ static void load_configuration(gchar *commands[]) {
             commands[4] = g_strdup(key_value[1]);
         } else if (g_strcmp0(key_value[0], "HIBERNATE_COMMAND") == 0) {
             commands[5] = g_strdup(key_value[1]);
+        } else {
+            g_warning("Unknown key in configuration: %s", key_value[0]);
         }
+
         g_strfreev(key_value);
     }
 
+    for (int i = 0; i < 6; i++) {
+        if (commands[i] == NULL || g_strcmp0(commands[i], "") == 0) {
+            g_warning("Command at index %d is invalid. Assigning default value.", i);
+            const gchar *default_commands[] = {
+                "openbox --exit",
+                "systemctl reboot",
+                "systemctl poweroff",
+                "dm-tool switch-to-greeter",
+                "systemctl suspend",
+                "systemctl hibernate"
+            };
+            commands[i] = g_strdup(default_commands[i]);
+        }
+    }
+
     g_strfreev(lines);
     g_free(config_data);
+    g_free(config_dir);
+    g_free(config_path);
 }
 
 static void activate(GtkApplication *app, gpointer user_data) {
@@ -323,33 +400,30 @@ static void activate(GtkApplication *app, gpointer user_data) {
 
     window = gtk_application_window_new(app);
     gtk_window_set_title(GTK_WINDOW(window), "Simple ShutDown Dialog");
-    gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
+    gtk_window_set_resizable(GTK_WINDOW(window), FALSE);
-
-    GError *error = NULL;
-    GdkPixbuf *icon_pixbuf = gdk_pixbuf_new_from_resource("/org/gtk/ssdd/ssdd-icon.png", &error);
-    if (icon_pixbuf) {
-        gtk_window_set_icon(GTK_WINDOW(window), icon_pixbuf);
-        g_object_unref(icon_pixbuf);
-    } else {
-        g_warning("Failed to load icon: %s", error->message);
-        g_error_free(error);
-    }
-
-    g_signal_connect(window, "key-press-event", G_CALLBACK(on_key_press), app);
 
     grid = gtk_grid_new();
-    gtk_grid_set_row_spacing(GTK_GRID(grid), 0);
+    gtk_grid_set_row_spacing(GTK_GRID(grid), 2);    // Reduce vertical spacing between grid rows
-    gtk_grid_set_column_spacing(GTK_GRID(grid), 0);
+    gtk_grid_set_column_spacing(GTK_GRID(grid), 2); // Reduce horizontal spacing between grid columns
-    gtk_container_add(GTK_CONTAINER(window), grid);
+    gtk_widget_set_margin_top(grid, 10);
+    gtk_widget_set_margin_bottom(grid, 10);
+    gtk_widget_set_margin_start(grid, 10);
+    gtk_widget_set_margin_end(grid, 10);
+    gtk_window_set_child(GTK_WINDOW(window), grid);
 
     for (int i = 0; i < 6; i++) {
         create_button(grid, app, labels[i], icons[i], commands[i], i);
-        g_free(commands[i]);  // Free the memory allocated for commands
+        g_free(commands[i]);
     }
     create_button(grid, app, labels[6], icons[6], "settings", 6);
     create_button(grid, app, labels[7], icons[7], "exit", 7);
 
-    gtk_widget_show_all(window);
+    // Key event handling
+    GtkEventController *key_controller = gtk_event_controller_key_new();
+    gtk_widget_add_controller(window, key_controller);
+    g_signal_connect(key_controller, "key-pressed", G_CALLBACK(on_key_pressed), app);
+
+    gtk_window_present(GTK_WINDOW(window));
 }
 
 int main(int argc, char **argv) {