Elgg-Lorea-Hydra/mod/file_tools/views/default/widgets/group_files/content.php

<?php

$widget = $vars["entity"];
$group = $widget->getOwnerEntity();

$number = sanitise_int($widget->file_count, false);
if (empty($number)) {
	$number = 4;
}

//get the group's files
$options = array(
	"type" => "object",
	"subtype" => "file",
	"container_guid" => $group->getGUID(),
	"limit" => $number,
	"pagination" => false,
	"full_view" => false
);

//if there are some files, go get them
if ($files = elgg_list_entities($options)) {
	//display in list mode
	echo $files;
} else {
	echo elgg_echo("file:none");
}

$new_link = elgg_view("output/url", array(
	"href" => "file/add/" . $group->getGUID(),
	"text" => elgg_echo("file:add"),
	"is_trusted" => true,
));
echo "<div>" . $new_link . "</div>";