New sort option: dirname

Sort filelist by dirname, then by name. This results in file entries
sorting before subdirectory entries.

Useful in conjunction with upcoming prev_dir and next_dir navigation
actions.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/filelist.c b/src/filelist.c
index 7e9dcbe..8956238 100644
--- a/src/filelist.c
+++ b/src/filelist.c
@@ -383,6 +383,20 @@ int feh_file_info_load(feh_file * file, Imlib_Image im)
 	return(0);
 }
 
+void feh_file_dirname(char *dst, feh_file * f, int maxlen)
+{
+	int n = strlen(f->filename) - strlen(f->name);
+
+	/* Give up on long dirnames */
+	if (n <= 0 || n >= maxlen) {
+		dst[0] = '\0';
+		return;
+	}
+
+	strncpy(dst, f->filename, n);
+	dst[n] = '\0';
+}
+
 int feh_cmp_filename(void *file1, void *file2)
 {
 	return(strcmp(FEH_FILE(file1)->filename, FEH_FILE(file2)->filename));
@@ -393,6 +407,17 @@ int feh_cmp_name(void *file1, void *file2)
 	return(strcmp(FEH_FILE(file1)->name, FEH_FILE(file2)->name));
 }
 
+int feh_cmp_dirname(void *file1, void *file2)
+{
+	char dir1[FEH_MAX_DIRNAME_LEN], dir2[FEH_MAX_DIRNAME_LEN];
+	int cmp;
+	feh_file_dirname(dir1, FEH_FILE(file1), FEH_MAX_DIRNAME_LEN);
+	feh_file_dirname(dir2, FEH_FILE(file2), FEH_MAX_DIRNAME_LEN);
+	if ((cmp = strcmp(dir1, dir2)) != 0)
+		return(cmp);
+	return(feh_cmp_name(file1, file2));
+}
+
 /* Return -1 if file1 is _newer_ than file2 */
 int feh_cmp_mtime(void *file1, void *file2)
 {
@@ -465,6 +490,9 @@ void feh_prepare_filelist(void)
 	case SORT_FILENAME:
 		filelist = gib_list_sort(filelist, feh_cmp_filename);
 		break;
+	case SORT_DIRNAME:
+		filelist = gib_list_sort(filelist, feh_cmp_dirname);
+		break;
 	case SORT_MTIME:
 		filelist = gib_list_sort(filelist, feh_cmp_mtime);
 		break;