linked list to keep track of past directory indexes

defines.h

@@ -91,4 +91,10 @@ typedef struct Yank {
 	char **list;
 	unsigned long count;
 } yank;
+typedef struct Linked_dir {
+	char *path;
+	unsigned long selected_file_current;
+	struct Linked_dir *next;
+} linked_dir;
+
 #endif

dir.c

@@ -19,6 +19,8 @@ extern volatile unsigned long selected_file_current;
 extern volatile unsigned long selected_file_last;
 extern color *colors;
 int (*order_func)() = sort_natural;
+linked_dir *visited_dirs;
+linked_dir *current_dir;
 
 unsigned long get_dir_size(char *path);
 void get_dir_content(char *path, unsigned long *dir_file_count, file *dir_content);
@@ -332,3 +334,37 @@ void update_selected_file(){
 	mid_content[selected_file_current].status |= FILE_STATUS_HOVER;
 	file_current->status = mid_content[selected_file_current].status;
 }
+void dir_set_selected_file_current(unsigned long selected_file_current){
+	current_dir->selected_file_current = selected_file_current;
+	mvwaddch(stdscr, 0,0, selected_file_current + '0');
+}
+
+unsigned long dir_get_selected_file_current(){
+	current_dir = visited_dirs;
+	char hit = 0;
+	char *path = getcwd(NULL, 0);
+	while(current_dir->next != NULL) {
+		if (strcmp(path, current_dir->path) == 0) {
+			hit = 1;
+			break;
+		}
+		current_dir = current_dir->next;
+	}
+	if (hit == 0) {
+		current_dir->next = malloc(sizeof(linked_dir));
+		current_dir->next->next = NULL;
+		current_dir->next->path = path;
+		return 0;
+	} else {
+		free(path);
+		return current_dir->selected_file_current;
+	}
+}
+void dir_init(){
+	visited_dirs = malloc(sizeof(linked_dir));
+	visited_dirs->path = getcwd(NULL, 0);
+	visited_dirs->selected_file_current = 0;
+	visited_dirs->next = NULL;
+	current_dir = visited_dirs;
+
+}

dir.h

@@ -7,3 +7,6 @@ unsigned long get_dir_size(char *path);
 void get_dir_content(char *path, unsigned long *dir_file_count, file *dir_content);
 void print_dir(WINDOW *win, char print_info, unsigned long *dir_file_count, file *dir_content);
 void update_selected_file();
+void dir_set_selected_file_current(unsigned long selected_file_current);
+unsigned long dir_get_selected_file_current();
+void dir_init();

interactions.c

@@ -197,6 +197,7 @@ void move_down(int passes){
 	selected_file_current += passes;
 
 	update_selected_file();
+	dir_set_selected_file_current(selected_file_current);
 
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_0);
 	pthread_mutex_unlock(&mutex_selection);
@@ -213,6 +214,7 @@ void move_up(int passes){
 	}
 
 	update_selected_file();
+	dir_set_selected_file_current(selected_file_current);
 	
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
 	pthread_mutex_unlock(&mutex_selection);
@@ -226,6 +228,8 @@ void move_left(int passes){
 		if (chdir("..") != 0) {
 			/* TODO(2025-07-09T00:30:05) fix */
 			FAIL("move_left", "unhandled error of chdir");
+		} else {
+			selected_file_current = dir_get_selected_file_current();
 		}
 	}
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY);
@@ -234,6 +238,8 @@ void move_right(){
 	if (file_current->file_type == FILE_TYPE_DIR || file_current->file_type == FILE_TYPE_SYMLINK) {
 		if (chdir(file_current->file_name) != 0) {
 			FAIL("move_right", "unhandled error of chdir");
+		} else {
+			selected_file_current = dir_get_selected_file_current();
 		}
 	} else {
 		unsigned long i = 0;
@@ -291,6 +297,7 @@ void jump_bottom(){
 	pthread_mutex_lock(&mutex_selection);
 	selected_file_current = 0 - 1;
 	update_selected_file();
+	dir_set_selected_file_current(selected_file_current);
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
 	pthread_mutex_unlock(&mutex_selection);
 }
@@ -298,6 +305,7 @@ void jump_top(){
 	pthread_mutex_lock(&mutex_selection);
 	selected_file_current = 0;
 	update_selected_file();
+	dir_set_selected_file_current(selected_file_current);
 	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
 	pthread_mutex_unlock(&mutex_selection);
 }
@@ -566,6 +574,8 @@ void jump_to_dir(int passes, int index){
 	}
 	if (chdir(path) != 0) {
 		FAIL("jump_to_dir", "jumping to black_magic in config.h failed");
+	} else {
+		selected_file_current = dir_get_selected_file_current();
 	}
 
 	/*env_parsed shall not be modified (read: free'd) - the man page*/
@@ -774,8 +784,8 @@ void search(){
 			for (i = 0; i < mid_file_count; i++) {
 				if (smartstrcasestr(mid_content[i].file_name, search_buffer)) {
 					selected_file_current = i;
-					status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_0);
 					update_selected_file();
+					status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_0);
 					render_pass();
 					break;
 				}

main.c

@@ -191,6 +191,7 @@ void init() {
 	threading_init(); /* found in threading.c */
 	colors_init(); /* in colors.c */
 	ueberzug_init(); /* in file_previews.c */
+	dir_init();	/*in dir.c */
 
 	ESCDELAY = 10;
 	char *start_path = getcwd(NULL, 0);