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<?php
// $Id$
function menu($path, $title, $callback = NULL, $help = NULL, $weight = 0, $hidden = 0) {
global $_gmenu;
if (empty($_gmenu[$path])) {
// add the menu to the flat list of menu items:
$_gmenu[$path] = array("title" => $title, "callback" => $callback, "help" => $help, "weight" => $weight, "hidden" => $hidden, "children" => array());
// find the best matching parent item:
$parent = substr($path, 0, strrpos($path, "/"));
while ($parent && !$_gmenu[$parent]) {
$parent = substr($parent, 0, strrpos($parent, "/"));
}
// check if any items need to be lowered:
if ($parent) {
foreach ($_gmenu[$parent]["children"] as $key => $item) {
if (strstr($item, $path)) {
// remove the item from its parent:
unset($_gmenu[$parent]["children"][$key]);
// add the item to its new parent:
$_gmenu[$path]["children"][] = $item;
}
}
}
// add the menu to the best matching parent:
$_gmenu[$parent]["children"][] = $path;
}
}
function menu_item($in_path) {
global $_gmenu;
/*
** If you want to theme your links, or if you want to replace them
** by an image, this would be the function to customize.
*/
$trail = menu_trail();
if (end($trail) == $in_path) {
$css = " class=\"current\"";
}
return "<a href=\"". url($in_path) ."\"$css>". t($_gmenu[$in_path]["title"]) ."</a>";
}
function menu_trail() {
global $_gmenu, $q;
static $trail; // cache
if (empty($trail)) {
$trail = array();
$path = $q;
while ($path) {
if ($_gmenu[$path]) {
$trail[] = $path;
}
$path = substr($path, 0, strrpos($path, "/"));
}
$trail = array_reverse($trail);
}
return $trail;
}
function menu_path() {
$trail = menu_trail();
$links = array();
foreach ($trail as $item) {
$links[] = menu_item($item);
}
return implode(" » ", $links);
}
function menu_help() {
global $_gmenu;
$path = menu_trail();
if ($path) {
$item = array_pop($path);
$output = $_gmenu[$item]["help"];
}
return @$output;
}
function _menu_sort($a, $b) {
global $_gmenu;
$a = &$_gmenu[$a];
$b = &$_gmenu[$b];
return $a["weight"] < $b["weight"] ? -11 : ($a["weight"] > $b["weight"] ? 1 : ($a["name"] < $b["name"] ? -1 : 1));
}
function menu_tree($parent = "") {
global $_gmenu;
if ($_gmenu[$parent]["children"]) {
$output = "\n<ul>\n";
usort($_gmenu[$parent]["children"], "_menu_sort");
foreach ($_gmenu[$parent]["children"] as $item) {
if ($_gmenu[$item]["hidden"] == 0) {
$trail = menu_trail($item);
$style = ($_gmenu[$item]["children"] ? (in_array($item, $trail) ? "expanded" : "collapsed") : "leaf");
$output .= "<li class=\"$style\">";
$output .= menu_item($item);
if (in_array($item, $trail)) {
$output .= menu_tree($item);
}
$output .= "</li>\n";
}
}
$output .= "</ul>\n";
}
return $output;
}
function menu_map($parent = "") {
global $_gmenu;
$output = "<ul>";
usort($_gmenu[$parent]["children"], "_menu_sort");
foreach ($_gmenu[$parent]["children"] as $item) {
if ($_gmenu[$item]["hidden"] == 0) {
$output .= "<li>";
$output .= menu_item($item);
$output .= menu_map($item);
$output .= "</li>";
}
}
$output .= "</ul>";
return $output;
}
function menu_execute_action() {
global $_gmenu, $q;
$trail = menu_trail();
$selected_menu = array_pop($trail);
if ($_gmenu[$selected_menu]["callback"]) {
$arg = substr($q, strlen($selected_menu) + 1);
if (empty($arg)) {
return call_user_func($_gmenu[$selected_menu]["callback"]);
}
else {
return call_user_func_array($_gmenu[$selected_menu]["callback"], explode("/", $arg));
}
}
}
function menu_build($type) {
// Empty the existing menu tree (if any):
unset($GLOBALS["_gmenu"]);
// Build the menu tree:
module_invoke_all("link", $type);
}
?>
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