Elgg-Lorea-Hydra/mod/file_tools/pages/edit.php

<?php

elgg_gatekeeper();

$folder_guid = get_input("folder_guid");
elgg_entity_gatekeeper($folder_guid, "object", FILE_TOOLS_SUBTYPE);

$folder = get_entity($folder_guid);

if (!$folder->canEdit()) {
	register_error(elgg_echo("limited_access"));
	forward(REFERER);
}
	
// set context and page_owner
elgg_set_context("file");
elgg_set_page_owner_guid($folder->getContainerGUID());

// build page elements
$title_text = elgg_echo("file_tools:edit:title");
$title = elgg_view_title($title_text);

$edit = elgg_view("file_tools/forms/edit", array("folder" => $folder, "page_owner_entity" => elgg_get_page_owner_entity()));

// build page
$page_data = $title . $edit;

echo elgg_view_page($title_text, elgg_view_layout("one_sidebar", array("content" => $page_data)));