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<?php
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// $Id: local_menu.module,v 1.11 2009/07/21 19:50:19 davereid Exp $
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define('LOCAL_MENU_TOP', 1);
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define('LOCAL_MENU_PARENT', 10);
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define('LOCAL_MENU_FAMILY', 11);
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define('LOCAL_MENU_CHILDREN', 12);
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define('LOCAL_MENU_UNLIMITED', 99);
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/**
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* Implementation of hook_block().
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*/
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function local_menu_block($op = 'list', $delta = 0, $edit = array()) {
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if ($op == 'list') {
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$blocks[0] = array(
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'info' => t('Local Menu'),
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'cache' => BLOCK_CACHE_PER_PAGE | BLOCK_CACHE_PER_USER,
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);
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return $blocks;
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}
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elseif ($op == 'configure') {
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$form['local_menu_start'] = array(
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'#type' => 'select',
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'#title' => t('Starting depth'),
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'#description' => t('At what depth we need to start draw the menu.'),
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'#options' => array(
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LOCAL_MENU_TOP => t('Top level (like a normal menu)'),
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2 => t('Level #2'),
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3 => t('Level #3'),
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4 => t('Level #4'),
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LOCAL_MENU_PARENT => t('Parent depth (of current page)'),
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LOCAL_MENU_FAMILY => t('Current depth'),
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LOCAL_MENU_CHILDREN => t('One level deeper (children)'),
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),
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'#default_value' => variable_get('local_menu_start', 2),
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);
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$form['local_menu_depth'] = array(
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'#type' => 'select',
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'#title' => t('Rendered depth'),
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'#description' => t('How deep we should allow the menu to be.'),
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'#options' => array(
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1 => t('One level (like primary links)'),
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2 => t('Two levels'),
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3 => t('Three levels'),
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LOCAL_MENU_UNLIMITED => t('All levels (unlimited)'),
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),
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'#default_value' => variable_get('local_menu_depth', LOCAL_MENU_UNLIMITED),
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);
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return $form;
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}
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elseif ($op == 'save') {
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variable_set('local_menu_start', $edit['local_menu_start']);
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variable_set('local_menu_depth', $edit['local_menu_depth']);
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}
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elseif ($op == 'view') {
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$item = menu_get_item();
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// Local Task
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if ($item && $item['tab_parent'] && $item['tab_root']) {
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$path_root = preg_replace('!^('. preg_replace('!%[^/]*!', '[^/]+', $item['tab_root']) .').*$!', '\\1', $item['href']);
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$item = menu_get_item($path_root);
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}
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// Not found
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if (!$item) {
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return FALSE;
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}
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// Get the menu link and set the active menu to the menu it's in, so Drupal can find it's way and make correct breadcrumbs at the same time
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$result = db_query("SELECT mlid FROM {menu_links} WHERE link_path = '%s' AND hidden <> 1 AND menu_name NOT IN ('admin_menu', 'devel')", $item['href']);
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// In case there are multiple, let's find the most appropriate one
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while ($link = menu_link_load(db_result($result))) {
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if (in_array($link['menu_name'], array(
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variable_get('menu_primary_links_source', 'primary-links'),
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variable_get('menu_secondary_links_source', 'secondary-links'),
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menu_get_active_menu_name(),
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))) {
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break;
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}
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}
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menu_set_active_menu_name($link['menu_name']);
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// Set current path temporarily to the root of the possible local task we might be, so Drupal finds it's way
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$q = $_GET['q'];
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$_GET['q'] = $item['href'];
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$tree = menu_tree_page_data($link['menu_name']);
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$_GET['q'] = $q;
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$depth = variable_get('local_menu_depth', LOCAL_MENU_UNLIMITED);
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$start = variable_get('local_menu_start', 2);
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$title = db_result(db_query("SELECT title FROM {menu_custom} WHERE menu_name = '%s'", $link['menu_name']));
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if ($start == LOCAL_MENU_TOP && $depth == LOCAL_MENU_UNLIMITED) {
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$block['subject'] = check_plain($title);
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$block['content'] = menu_tree_output($tree);
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}
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else {
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if ($start == LOCAL_MENU_PARENT) {
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$start = max(1, $link['depth'] - 1);
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}
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elseif ($start == LOCAL_MENU_FAMILY) {
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$start = $link['depth'];
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}
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elseif ($start == LOCAL_MENU_CHILDREN) {
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$start = $link['depth'] + 1;
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}
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$block['content'] = local_menu_content($tree, $start, $depth);
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$block['subject'] = check_plain(($local_title = local_menu_title()) ? $local_title : $title);
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}
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return $block;
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}
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}
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function local_menu_content(&$tree, $start, $depth) {
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$items = array();
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$output = '';
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foreach ($tree as $data) {
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if (!$data['link']['hidden']) {
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$items[] = $data;
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}
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}
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$num_items = count($items);
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foreach ($items as $i => $data) {
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if ($start <= $data['link']['depth']) {
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$extra_class = NULL;
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if ($i == 0) {
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$extra_class = 'first';
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}
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if ($i == $num_items - 1) {
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$extra_class .= ' last';
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}
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$link = theme('menu_item_link', $data['link']);
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$below = ($depth > 1 && $data['below']) ? local_menu_content($data['below'], $start, $depth - 1) : '';
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$output .= theme('menu_item', $link, $data['link']['has_children'], $below, $data['link']['in_active_trail'], $extra_class);
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}
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elseif ($data['link']['in_active_trail'] && $data['below']) {
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if ($start == $data['link']['depth'] + 1) {
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local_menu_title($data['link']['title']);
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}
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$output = local_menu_content($data['below'], $start, $depth - 1);
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}
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}
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if (isset($data['link']['depth']) && $start <= $data['link']['depth']) {
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$output = $output ? theme('menu_tree', $output) : '';
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}
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return $output;
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}
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function local_menu_title($set_title = '') {
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static $title;
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if ($set_title) {
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$title = $set_title;
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}
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return $title;
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}
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