This is a simple module that enables the site to have drop down/flyout CSS menus for site and admin navigation.Remember to activate and configure the menu blocks in !link
', array('!link' => l('admin/build/block', 'admin/build/block')));
break;
}
return $output;
}
/**
* Implementation of hook_form_alter().
*/
function nice_menus_form_alter(&$form, $form_state, $form_id) {
switch ($form_id) {
case 'system_theme_settings':
// This is a global setting, so only insert the field
// on the global settings page.
if (arg(4)) {
return;
}
// Have to add a custom submit handler since this form doesn't use
// the standard system submit handler.
$form['#submit'][] = 'nice_menus_system_theme_settings_submit';
// Add global theme setting for a custom CSS file.
$form['nice_menus_custom_css'] = array(
'#type' => 'textfield',
'#title' => t('Path to custom Nice Menus CSS file'),
'#description' => t('To override the default Nice Menus CSS layout, enter the path to your custom CSS file. It should be a relative path from the root of your Drupal install (e.g. sites/all/themes/example/mymenu.css).'),
'#default_value' => variable_get('nice_menus_custom_css', ''),
// Field appears below submit buttons without this -- yucky.
'#weight' => 0,
);
break;
}
}
/**
* Records the nice menu custom CSS file per theme.
*/
function nice_menus_system_theme_settings_submit($form, &$form_state) {
variable_set('nice_menus_custom_css', $form_state['values']['nice_menus_custom_css']);
}
/**
* Implemention of hook_menu().
*/
function nice_menus_menu() {
$items['admin/settings/nice_menus'] = array(
'title' => 'Nice Menus',
'description' => 'Configure Nice Menus.',
'page callback' => 'drupal_get_form',
'page arguments' => array('nice_menus_admin_settings'),
'access arguments' => array('administer site configuration'),
'type' => MENU_NORMAL_ITEM,
);
return $items;
}
/**
* Settings form as implemented by hook_menu
*/
function nice_menus_admin_settings() {
$form['nice_menus_number'] = array(
'#type' => 'textfield',
'#description' => t('The total number of independent Nice menus blocks you want. Enter a number between 0 and 99. If you set this to 0, you will have no blocks created but you can still use the Nice menus theme functions directly in your theme.'),
'#default_value' => variable_get('nice_menus_number', '2'),
'#size' => 2,
);
$form['nice_menus_ie'] = array(
'#type' => 'checkbox',
'#title' => t('Enable IE support'),
'#description' => t('This will add necessary JavaScript for Nice Menus to work properly in Internet Explorer.'),
'#default_value' => variable_get('nice_menus_ie', 1),
);
// Custom validation to make sure the user is entering numbers.
$form['#validate'][] = 'nice_menus_settings_validate';
return system_settings_form($form);
}
/**
* Custom validation for the settings form.
*/
function nice_menus_settings_validate($form, &$form_state) {
$number = $form_state['values']['nice_menus_number'];
// Check to make sure it is a number and that is a maximum of 2 digits.
if (!is_numeric($number) || strlen($number) > 2) {
form_set_error('nice_menus_number', t('You must enter a number from 0 to 99.'));
}
}
/**
* Implementation of hook_block().
*/
function nice_menus_block($op = 'list', $delta = 0, $edit = array()) {
global $user;
switch ($op) {
case 'list':
for ($i = 1; $i <= variable_get('nice_menus_number', '2'); $i++) {
$blocks[$i]['info'] = variable_get('nice_menus_name_'. $i, 'Nice Menu '. $i) .' (Nice Menu)';
// We have too many things changing per user, per page to cache.
$blocks[$i]['cache'] = BLOCK_NO_CACHE;
}
return $blocks;
break;
case 'configure':
$form['nice_menus_name_'. $delta] = array(
'#type' => 'textfield',
'#title' => t('Menu Name'),
'#default_value' => variable_get('nice_menus_name_'. $delta, 'Nice Menu '. $delta),
);
$form['nice_menus_menu_'. $delta] = array(
'#type' => 'select',
'#title' => t('Source Menu Tree'),
'#description' => t('The menu tree from which to show a nice menu.'),
'#default_value' => variable_get('nice_menus_menu_'. $delta, 'navigation:0'),
'#options' => menu_parent_options(menu_get_menus(), 0),
);
$form['nice_menus_type_'. $delta] = array(
'#type' => 'select',
'#title' => t('Menu Style'),
'#description' => t('right: menu items are listed on top of each other and expand to the right') .'
'. t('left: menu items are listed on top of each other and expand to the left') .'
'. t('down: menu items are listed side by side and expand down'),
'#default_value' => variable_get('nice_menus_type_'. $delta, 'right'),
'#options' => drupal_map_assoc(array('right', 'left', 'down')),
);
return $form;
break;
case 'save':
variable_set('nice_menus_name_'. $delta, $edit['nice_menus_name_'. $delta]);
variable_set('nice_menus_menu_'. $delta, $edit['nice_menus_menu_'. $delta]);
variable_set('nice_menus_type_'. $delta, $edit['nice_menus_type_'. $delta]);
break;
case 'view':
// Build the nice menu for the block.
list($menu_name, $mlid) = explode(':', variable_get('nice_menus_menu_'. $delta, 'navigation:0'));
$direction = variable_get('nice_menus_type_'. $delta, 'right');
if ($output = theme('nice_menu', $delta, $menu_name, $mlid, $direction)) {
$block['content'] = $output['content'];
if (variable_get('nice_menus_type_'. $delta, 'right') == 'down') {
$class = 'nice-menu-hide-title';
}
else {
$class = 'nice-menu-show-title';
}
// If we're building the navigation block
// use the same block title logic as menu module.
if ($output['subject'] == t('Navigation') && $user->uid) {
$subject = $user->name;
}
else {
$subject = $output['subject'];
}
$block['subject'] = ''. check_plain($subject) .'';
}
else {
$block['content'] = false;
}
return $block;
break;
}
}
/**
* Implmentation of hook_theme().
*/
function nice_menus_theme() {
return array(
'nice_menu_tree' => array(
'arguments' => array('menu_name' => NULL, 'mlid' => NULL, 'menu' => NULL),
),
'nice_menu_build' => array(
'arguments' => array('menu' => NULL),
),
'nice_menu' => array(
'arguments' => array('id' => NULL, 'menu_name' => NULL, 'mlid' => NULL, 'direction' => 'right', 'menu' => NULL),
),
'nice_menu_primary_links' => array(
'arguments' => array('direction' => 'down', 'menu' => NULL),
),
'nice_menu' => array(
'arguments' => array('id' => NULL, 'pid' => NULL, 'direction' => 'right', 'menu' => NULL),
),
'nice_menu_primary_links' => array(
'arguments' => array('direction' => 'down', 'menu' => NULL),
),
);
}
/**
* Implementation of hook_init().
*
* We are adding the JavaScript and CSS here rather than theme_nice_menu
* because when block caching is enabled none of it would get fired
* and the menus are unstyled.
*/
function nice_menus_init() {
// Add JavaScript, if enabled.
if (variable_get('nice_menus_ie', 1) == 1) {
drupal_add_js(drupal_get_path('module', 'nice_menus') .'/nice_menus.js');
}
// Add main CSS functionality.
drupal_add_css(drupal_get_path('module', 'nice_menus') .'/nice_menus.css');
// Add custom CSS layout if specified.
if ($custom = variable_get('nice_menus_custom_css', '')) {
drupal_add_css($custom);
}
// Fall back to default layout.
else {
drupal_add_css(drupal_get_path('module', 'nice_menus') .'/nice_menus_default.css');
}
}
/**
* Builds the final nice menu.
*
* @param $menu_name
* The top-level menu name that contains the menu to use (e.g. navigation
* or primary-links) for Drupal menus. For custom $menus this is just the
* name for menu display.
* @param $mlid
* The menu ID from which to start building the items, i.e. the parent
* of the displayed menu.
* @param $menu
* Optional. A custom menu array to use for theming -- it should have
* the same structure as that returned by menu_tree_all_data().
* @return
* An HTML string of properly nested nice menu lists.
*/
function theme_nice_menu_tree($menu_name, $mlid = NULL, $menu = NULL) {
// Load the full menu array.
$menu = isset($menu) ? $menu : menu_tree_all_data($menu_name);
// For custom $menus and menus built all the way from the top-level we
// don't need to "create" the specific sub-menu and we need to get the title
// from the $menu_name since there is no "parent item" array.
// Create the specific menu if we have a mlid.
if (!empty($mlid)) {
// Load the parent menu item.
$item = menu_link_load($mlid);
$title = check_plain($item['title']);
// Narrow down the full menu to the specific sub-tree we need.
for ($p = 1; $p < 10; $p++) {
if ($sub_mlid = $item["p$p"]) {
$subitem = menu_link_load($sub_mlid);
// Menu sets these ghetto-ass keys in _menu_tree_check_access().
$menu = $menu[(50000 + $subitem['weight']) .' '. $subitem['title'] .' '. $subitem['mlid']]['below'];
}
}
}
// Otherwise just set a title and move on.
else {
// Get the title from the DB since we don't have it in the $menu.
$result = db_result(db_query("SELECT title FROM {menu_custom} WHERE menu_name = '%s'", $menu_name));
$title = check_plain($result);
}
$output['content'] = '';
$output['subject'] = $title;
if ($menu) {
$output['content'] .= theme('nice_menu_build', $menu);
}
return $output;
}
/**
* Helper function that builds the nested lists of a nice menu.
*
* @param $menu
* Menu array from which to build the nested lists.
*/
function theme_nice_menu_build($menu) {
$output = '';
foreach ($menu as $menu_item) {
$mlid = $menu_item['link']['mlid'];
// Check to see if it is a visible menu item.
if ($menu_item['link']['hidden'] == 0) {
// Build class name based on menu path
// e.g. to give each menu item individual style.
// Strip funny symbols.
$clean_path = str_replace(array('http://', 'www', '<', '>', '&', '=', '?', ':'), '', $menu_item['link']['href']);
// Convert slashes to dashes.
$clean_path = str_replace('/', '-', $clean_path);
$path_class = 'menu-path-'. $clean_path;
// If it has children build a nice little tree under it.
if ((!empty($menu_item['link']['has_children'])) && (!empty($menu_item['below']))) {
// Keep passing children into the function 'til we get them all.
$children = theme('nice_menu_build', $menu_item['below']);
// Set the class to parent only of children are displayed.
$parent_class = $children ? 'menuparent ' : '';
$output .= '\n";
}
else {
$output .= ''."\n";
}
}
}
return $output;
}
/**
* General theming function to allow any menu tree to be themed
* as a nice menu.
*
* @param $id
* The nice menu ID.
* @param $menu_name
* The top parent menu name from which to build the full menu.
* @param $mlid
* The menu ID from which to build the displayed menu.
* @param $direction
* Optional. The direction the menu expands. Default is 'right'.
* @param $menu
* Optional. A custom menu array to use for theming --
* it should have the same structure as that returned
* by menu_tree_all_data(). Default is the standard menu tree.
* @return
* An HTML string of nice menu links.
*/
function theme_nice_menu($id, $menu_name, $mlid, $direction = 'right', $menu = NULL) {
$output = array();
if ($menu_tree = theme('nice_menu_tree', $menu_name, $mlid, $menu)) {
if ($menu_tree['content']) {
$output['content'] = ''."\n";
$output['subject'] = $menu_tree['subject'];
}
}
return $output;
}
/**
* Theme primary links as nice menus
*
* @param $direction
* Optional. The direction the menu expands. Default is 'down'.
* @param $menu
* Optional. A custom menu array to use for theming --
* it should have the same structure as that returned
* by menu_tree_all_data(). Default is the standard menu tree.
* @return
* An HTML string of nice menu primary links.
*/
function theme_nice_menu_primary_links($direction = 'down', $menu = NULL) {
$menu_name = variable_get('menu_primary_links_source', 'primary-links');
$output = theme('nice_menu', 0, $menu_name, 0, $direction, $menu);
return $output['content'];
}