diff --git a/main.c b/main.c
index 956c111..43130e3 100644
--- a/main.c
+++ b/main.c
@@ -2,20 +2,32 @@
 #include <stdio.h>
 #include <dirent.h> 
 
-static void buttons (GtkApplication *app, gpointer *user_data, char *directory);
+typedef struct{
+	GtkApplication *app;
+	GtkWidget *window;
+	char dir[256];
+} Appdata;
+
+static void buttons (GtkApplication *app, Appdata *data, char *directory);
 
 // action on clicked button
 static void on_button_clicked(GtkButton *btn, gpointer user_data){
+	Appdata *data = (Appdata *)user_data;
 	const char *label = gtk_button_get_label(btn);	
 	g_print("Button %s clicked\n",label);
-	char dir = *label;
-
-    GtkWidget *child = gtk_widget_get_first_child(GTK_WIDGET(user_data));
+	// remove child(grid buttons)
+    GtkWidget *child = gtk_widget_get_first_child(GTK_WIDGET(data->window));
     while (child != NULL) {
         GtkWidget *next_child = gtk_widget_get_next_sibling(child);
-        gtk_grid_remove(user_data, child);
+        gtk_window_set_child(GTK_WINDOW(data->window), NULL);
         child = next_child;
     }
+    // get into char directory label of button with previos dir name
+	char directory[256];
+    snprintf(directory, sizeof(directory), "%s/%s", data->dir,label);
+    // save full path
+    snprintf(data->dir, sizeof(directory), "%s", directory);
+    buttons(data->app,data,directory);
 }
 // gets number of items and return value in arrays
 int *check_dir(int *arr, DIR *d, char *directory){
@@ -26,8 +38,9 @@ int *check_dir(int *arr, DIR *d, char *directory){
 	if (d) {
 		while ((dir = readdir(d)) != NULL){
 			char *name = dir->d_name;
-			if (*name == '.'){
-				printf("directory starts with .\n");
+			// temporary make them ' ' for get into previos dir
+			if (*name == ' '){
+				printf("directory starts with . : %s\n", name);
 			}
 			else{
 				i += 1;
@@ -44,7 +57,7 @@ int *check_dir(int *arr, DIR *d, char *directory){
 }
 
 // present buttons
-static void buttons (GtkApplication *app, gpointer *user_data,char *directory){
+static void buttons (GtkApplication *app, Appdata *data,char *directory){
 	int p[2];
 	int g;
 	int i = 0;
@@ -53,19 +66,17 @@ static void buttons (GtkApplication *app, gpointer *user_data,char *directory){
 	struct dirent *dir;
 	// char directory[100];
 	d = opendir(directory);
-	GtkWidget *window = gtk_application_window_new (GTK_APPLICATION(app));
-	gtk_window_set_title (GTK_WINDOW (window), "File Manager");
-	gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
-	gtk_window_set_application(GTK_WINDOW(window),app);
 	GtkWidget* grid =  gtk_grid_new();
 	check_dir(p, d, directory);
+	printf("directory: %s\n",directory);
 	printf("%i %i\n",p[0],p[1]);
 	g = 10;
     while ((dir = readdir(d)) != NULL && i <=p[1] && j < g){
 	    if (d) {
 	    	char *name = dir->d_name;
-	    	if (*name == '.'){
-				printf("directory starts with .\n");
+			// temporary make them ' ' for get into previos dir
+	    	if (*name == ' '){
+				printf("directory starts with . : %s\n", name);
 			}
 			else{
 				if (i == p[1]){
@@ -82,7 +93,7 @@ static void buttons (GtkApplication *app, gpointer *user_data,char *directory){
 					gtk_grid_attach (GTK_GRID(grid), btn, j, i, 1,1);
 					gtk_widget_set_halign(btn, GTK_ALIGN_CENTER);
 					gtk_widget_set_valign(btn, GTK_ALIGN_CENTER);
-					g_signal_connect(btn, "clicked",G_CALLBACK(on_button_clicked),grid);
+					g_signal_connect(btn, "clicked",G_CALLBACK(on_button_clicked),data);
 					j++;
 					if (j >= 10){
 						j = 0;
@@ -92,22 +103,31 @@ static void buttons (GtkApplication *app, gpointer *user_data,char *directory){
 		}
 	}
 	closedir(d);
-	printf("set child and present window\n");
-	gtk_window_set_child(GTK_WINDOW(window),grid);					
-	gtk_window_present(GTK_WINDOW(window));
+	gtk_window_set_child(GTK_WINDOW(data->window),grid);
+	gtk_window_present(GTK_WINDOW(data->window));
+	printf("set child and present window %d\n", data->window);
 }
 
 static void app_activate (GtkApplication *app, gpointer *user_data){
-	char directory[100];
-	scanf("%100[^\n]", &directory);
-	buttons(app,user_data,directory);
+	Appdata *data = (Appdata *)user_data;
+	scanf("%256[^\n]", &data->dir);
+	// create window if not exist
+	if (!data->window){
+		data->window = gtk_application_window_new (GTK_APPLICATION(app));
+		gtk_window_set_title (GTK_WINDOW (data->window), "File Manager");
+		gtk_window_set_default_size (GTK_WINDOW (data->window), 600, 400);
+		gtk_window_set_application(GTK_WINDOW(data->window),app);
+	}
+	buttons(app,data,data->dir);
 	g_print("Started\n");
 }
 
 int main (int argc, char **argv){
-    GtkApplication *app = gtk_application_new ("fun.kotyara.filemanager", G_APPLICATION_DEFAULT_FLAGS);
-    g_signal_connect (app, "activate", G_CALLBACK(app_activate),NULL);
-    int status = g_application_run (G_APPLICATION (app), argc, argv);
-    g_object_unref(app);
+	Appdata *data = g_new0(Appdata,1 );
+    data->app = gtk_application_new ("fun.kotyara.filemanager", G_APPLICATION_DEFAULT_FLAGS);
+    g_signal_connect (data->app, "activate", G_CALLBACK(app_activate),data);
+    int status = g_application_run (G_APPLICATION (data->app), argc, argv);
+    g_object_unref(data->app);
+    g_free(data);
     return status;
 }