Elgg-Lorea-Hydra/mod/file_tools/views/default/input/folder_select.php

<?php

$folder_guid = (int) get_input("folder_guid");

$container_guid = elgg_extract("container_guid", $vars, elgg_get_page_owner_guid());
$current_folder	= elgg_extract("folder", $vars, $folder_guid);
$type = elgg_extract("type", $vars);

unset($vars["folder"]);
unset($vars["type"]);
unset($vars["container_guid"]);

if ($type == "folder") {
	if (!elgg_extract("value", $vars)) {
		if (!empty($current_folder)) {
			$vars["value"] = get_entity($current_folder)->parent_guid;
		}
	}
} elseif (!elgg_extract("value", $vars)) {
	$vars["value"] = $current_folder;
}

$folders = file_tools_get_folders($container_guid);

$options = array(
	0 => elgg_echo("file_tools:input:folder_select:main")
);

if (!empty($folders)) {
	$options = $options + file_tools_build_select_options($folders, 1);
}

$vars["options_values"] = $options;

echo elgg_view("input/dropdown", $vars);