/* Goes one directory up from current location. Returns zero unless it won't
* make sense to continue going up (like on error or reaching root). */
static int
cd_to_parent_dir(FileView *view)
{
char dir_name[strlen(view->curr_dir) + 1];
int ret;
/* Return to original directory from custom view. */
if(flist_custom_active(view))
{
navigate_to(view, view->custom.orig_dir);
return 0;
}
/* Do nothing in root. */
if(is_root_dir(view->curr_dir))
{
return 1;
}
dir_name[0] = '\0';
extract_last_path_component(view->curr_dir, dir_name);
ret = change_directory(view, "../");
if(ret == -1)
{
return 1;
}
if(ret == 0)
{
load_dir_list(view, 0);
flist_set_pos(view, find_file_pos_in_list(view, dir_name));
}
return 0;
}
void
flist_set_pos(FileView *view, int pos)
{
if(pos < 1)
{
pos = 0;
}
if(pos > view->list_rows - 1)
{
pos = view->list_rows - 1;
}
if(pos != -1)
{
FileView *const other = (view == curr_view) ? other_view : curr_view;
view->list_pos = pos;
fview_position_updated(view);
/* Synchronize cursor with the other pane. */
if(view->custom.type == CV_DIFF && other->list_pos != pos)
{
flist_set_pos(other, pos);
}
}
}
/* Resolve link target and either navigate inside directory link points to or
* navigate to directory where target is located pointing cursor on
* it (the follow_dirs flag controls behaviour). */
static void
follow_link(FileView *view, int follow_dirs)
{
char *dir, *file;
char full_path[PATH_MAX];
char linkto[PATH_MAX + NAME_MAX];
dir_entry_t *const entry = &curr_view->dir_entry[curr_view->list_pos];
get_full_path_of(entry, sizeof(full_path), full_path);
if(get_link_target_abs(full_path, entry->origin, linkto, sizeof(linkto)) != 0)
{
show_error_msg("Error", "Can't read link.");
return;
}
if(!path_exists(linkto, DEREF))
{
show_error_msg("Broken Link",
"Can't access link destination. It might be broken.");
return;
}
chosp(linkto);
if(is_dir(linkto) && !follow_dirs)
{
dir = strdup(entry->name);
file = NULL;
}
else
{
dir = strdup(linkto);
remove_last_path_component(dir);
file = get_last_path_component(linkto);
}
if(dir[0] != '\0')
{
navigate_to(view, dir);
}
if(file != NULL)
{
const int pos = find_file_pos_in_list(view, file);
if(pos >= 0)
{
flist_set_pos(view, pos);
}
}
free(dir);
}
static void
updir_from_mount(FileView *view, fuse_mount_t *runner)
{
char *file;
int pos;
if(change_directory(view, runner->source_file_dir) < 0)
return;
load_dir_list(view, 0);
file = runner->source_file_name;
file += strlen(runner->source_file_dir) + 1;
pos = find_file_pos_in_list(view, file);
flist_set_pos(view, pos);
}
int
ensure_file_is_selected(FileView *view, const char name[])
{
int file_pos;
char nm[NAME_MAX];
/* Don't reset filters to find "file with empty name". */
if(name[0] == '\0')
{
return 0;
}
/* This is for compatibility with paths loaded from vifminfo that have
* trailing slash. */
copy_str(nm, sizeof(nm), name);
chosp(nm);
file_pos = find_file_pos_in_list(view, nm);
if(file_pos < 0 && file_can_be_displayed(view->curr_dir, nm))
{
if(nm[0] == '.')
{
set_dot_files_visible(view, 1);
file_pos = find_file_pos_in_list(view, nm);
}
if(file_pos < 0)
{
remove_filename_filter(view);
/* remove_filename_filter() postpones list of files reloading. */
populate_dir_list(view, 1);
file_pos = find_file_pos_in_list(view, nm);
}
}
flist_set_pos(view, (file_pos < 0) ? 0 : file_pos);
return file_pos >= 0;
}
