'SimpleMenu',
'description' => 'Select the menu to display.',
'page callback' => 'drupal_get_form',
'page arguments' => array('simplemenu_admin_settings'),
'access arguments' => array('administer simplemenu'),
'file' => 'simplemenu.admin.inc',
);
return $items;
}
/**
* Is simplemenu enabled for this page request?
*/
function simplemenu_enabled() {
static $enabled;
if (!isset($enabled)) {
global $theme;
$exclusions = variable_get('simplemenu_exclusions', array());
$enabled = (!isset($exclusions[$theme]) || !$exclusions[$theme])
&& user_access('view simplemenu')
&& _simplemenu_page_visibility()
&& _simplemenu_superuser_active();
}
return $enabled;
}
/**
* Implementation of hook_init().
*/
function simplemenu_init() {
// do a simple access check here, since theme isn't available to check yet
if (simplemenu_enabled()) {
_simplemenu_add_menu();
_simplemenu_add_css(); // basic CSS must be before _simplemenu_add_theme()
_simplemenu_add_theme();
_simplemenu_add_js();
}
}
/** \brief Add the simplemenu variable with the menu to be displayed.
*
* This function loads the menu to be displayed and transforms it so
* it works with superfish.
*
* If the cache version of the simplemenu JavaScript string cannot be
* created, then it is sent inline whether or not the user asked for it
* to be sent inline.
*/
function _simplemenu_add_menu() {
$simplemenu = 'var simplemenu=' . drupal_to_js(simplemenu_get_menu()) . ';';
$has_file = variable_get('simplemenu_cache_menu', TRUE);
if ($has_file) {
$js_path = file_create_path('js'); // same path as concatenated Core JS
$js_md5 = md5($simplemenu); // this is a lot faster than transferring the menu for each page!
$js_filename = $js_path . '/simplemenu-' . $js_md5 . '.js';
$has_file = file_check_directory($js_path, FILE_CREATE_DIRECTORY);
if ($has_file) {
// The old way was to send the whole menu each time
if (!file_exists($js_filename)) {
// use LOCK so concurrent writes don't mess up the file
@file_put_contents($js_filename, $simplemenu);
$has_file = file_exists($js_filename);
}
else {
$has_file = TRUE;
}
}
}
$scope = variable_get('simplemenu_menu_scope', 'footer');
if ($has_file) {
drupal_add_js($js_filename, 'module', $scope);
}
else {
drupal_add_js($simplemenu, 'inline', $scope);
}
}
/** \brief Generate the CSS and add it to the page.
*
* This function generates the dynamic CSS and then insert that to
* the header of the page.
*
* The function regenerates the CSS only when the settings were
* modified. Otherwise, it uses the cached version.
*
* The function has a fall back, in case the dynamic CSS cannot
* be created.
*/
function _simplemenu_add_css() {
global $user;
$simplemenu_path = drupal_get_path('module', 'simplemenu');
$css_path = file_create_path('css'); // same path as concatenated Core CSS
if (file_check_directory($css_path, FILE_CREATE_DIRECTORY)) {
$fix = variable_get('simplemenu_fix', 'scroll');
// XXX add a variable simplemenu_update which is set to TRUE whenever
// the settings get modified and false here
$output_filename = variable_get('simplemenu_css_filename', '');
if (!$output_filename) {
$tags = array(
'@MENUBAR_ZINDEX@' => simplemnu_get_zindex('simplemenu_menubar_zindex', 9999),
'@DROPDOWN_ZINDEX@' => simplemnu_get_zindex('simplemenu_dropdown_zindex', 9999),
);
switch ($fix) {
case 'top':
$tags['@FIX@'] = "position: fixed;\n top: 0;";
break;
case 'bottom':
$tags['@FIX@'] = "position: fixed;\n bottom: 0;";
break;
default: // scroll
$tags['@FIX@'] = 'position: relative;';
break;
}
$css = file_get_contents($simplemenu_path . '/simplemenu.css.tpl');
$css = strtr($css, $tags);
$css_md5 = md5($css);
$output_filename = $css_path . '/simplemenu-' . $css_md5 . '.css';
if (!file_exists($output_filename)) {
// new content, create a new file
file_put_contents($output_filename, $css);
}
else {
// this call is rather ugly, but we must make sure that the
// system cache will take the current Simplemenu CSS in account
_drupal_flush_css_js();
}
//variable_set('simplemenu_css_filename', $output_filename);
}
drupal_add_css($output_filename);
}
else {
// in case we cannot create the dynamic CSS
$last_msg = variable_get('simplemenu_css_error', 0);
if (($last_msg != -1 && $last_msg + 3600 > time()) || $user->uid == 1) {
// avoid displaying the error on each page... only once per hour.
// (unless you are the admin, in which case you probably want to know!)
variable_set('simplemenu_css_error', time());
drupal_set_message(t('Simplemenu could not create the folder @path in order to save the dynamic CSS data.',
array('@path' => $css_path)), 'warning');
}
// use a default that cannot react to the dynamic changes...
drupal_add_css($simplemenu_path .'/simplemenu.css');
}
}
/** \brief Add the module theme.
*
* This function adds a theme for the Simplemenu look.
*
* By default, the original theme is used. The module also offers the
* blackblue theme. It is also possible to create new themes or use
* the theming of the current theme for simplemenu (so the menu fits
* perfectly for that theme.)
*/
function _simplemenu_add_theme() {
// we want to put the simplemenu theme CSS first
// so we can change some CSS entries dynamically
// but at this time the simplemenu.css is used to
// reset many of the CSS entries... Hmmm...
$simplemenu_theme = variable_get('simplemenu_theme', 'original');
if ($simplemenu_theme != 'custom') {
$simplemenu_path = drupal_get_path('module', 'simplemenu');
$theme_file = $simplemenu_path . '/themes/' . $simplemenu_theme
. '/' . $simplemenu_theme . '.css';
if (is_file($theme_file)) {
drupal_add_css($theme_file);
}
}
}
/** \brief Add the JavaScript that makes it all work.
*
* This function adds the Simplemenu JavaScript, the Superfish JavaScript
* and settings from the user.
*/
function _simplemenu_add_js() {
$simplemenu_path = drupal_get_path('module', 'simplemenu');
// Settings
$fix = variable_get('simplemenu_fix', 'scroll');
switch ($fix) {
case 'top':
$element = 'body';
$placement = 'prepend';
break;
case 'bottom':
$element = 'body';
$placement = 'append';
break;
default: // 'scroll'
// let user defined other elements when not fixed
$element = variable_get('simplemenu_element', 'body');
$placement = variable_get('simplemenu_element_method', 'prepend');
break;
}
$settings = array(
'effect' => variable_get('simplemenu_effect', 'opacity'),
'effectSpeed' => variable_get('simplemenu_effect_speed', 'fast'),
'element' => $element,
'placement' => $placement,
'hideDelay' => variable_get('simplemenu_hide_delay', 800),
'detectPopup' => variable_get('simplemenu_detect_popup', 1),
);
drupal_add_js(array('simplemenu' => $settings), 'setting');
// Simplemenu
drupal_add_js($simplemenu_path . '/simplemenu.js');
// Superfish
$superfish = variable_get('simplemenu_superfish_version', 'superfish-1.4.1.js');
if ($superfish != 'custom') {
drupal_add_js($simplemenu_path . '/' . $superfish);
}
}
/**
* \brief Retrieve the zindex for the CSS files.
*
* This function retrieves a z-index from a Drupal variable and
* transform it to fit in a CSS file.
*
* \param[in] $name The name of the z-index variable to read.
* \param[in] $default The default value to use when the variable is not defined.
*
* \return A string representing the current value of the specified z-index.
*/
function simplemnu_get_zindex($name, $default) {
$zindex = variable_get($name, $default);
if ($zindex == -1) {
$zindex = '';
}
else {
$zindex = 'z-index: ' . $zindex . ';';
}
return $zindex;
}
/**
* Implementation of hook_perm().
*/
function simplemenu_perm() {
return array('view simplemenu', 'administer simplemenu');
}
/**
* Render an HTML list of links for a given menu.
*/
function simplemenu_get_menu() {
variable_set('simplemenu_running', TRUE);
// if a user turned off menu module but SimpleMenu was previously set
// reset variable so a menu appears
$all_menus = array(variable_get('simplemenu_menu', 'navigation:0'));
drupal_alter('simplemenu_menus', $all_menus);
if (count($all_menus) > 1) {
// if menu is not enable then we cannot have a count other than 1
$menu_titles = menu_get_menus();
$tree = array();
foreach ($all_menus as $full_name) {
list($menu_name, $mlid) = explode(':', $full_name);
$tree[] = array(
'link' => array(
'simplemenu_multi_menu_root' => TRUE,
'mlid' => $mlid,
'menu_name' => $full_name,
'hidden' => FALSE,
'title' => $menu_titles[$menu_name],
'href' => 'admin/settings/simplemenu', /// ??? -- we should not have a link here
'in_active_trail' => FALSE,
'has_children' => TRUE,
'localized_options' => array(
'attributes' => array('class' => 'simplemenu-top-level'),
),
),
'below' => simplemenu_menu_tree($full_name),
);
}
}
else {
reset($all_menus);
$tree = simplemenu_menu_tree(current($all_menus));
}
// allow other modules to modify the menu tree
drupal_alter('simplemenu_tree', $tree);
// now generate the output
$menu = menu_tree_output($tree);
if (!$menu) {
$menu = '';
}
// add the id to the UL tag here instead of the JavaScript
// otherwise it could be added to the tag instead...
$pos = strpos($menu, '>');
$menu = str_replace('class="menu', 'class="menu clear-block', substr($menu, 0, $pos))
. ' id="simplemenu"' . substr($menu, $pos);
variable_set('simplemenu_running', FALSE);
return '';
}
/**
* Custom implementation of menu_tree().
* We want to retrieve the entire menu structure for a given menu,
* regardless of whether or not the menu item is expanded or not.
*/
function simplemenu_menu_tree($menu_name = 'navigation:0') {
static $menu_tree = array();
if (!isset($menu_output[$menu_name])) {
$menu_tree[$menu_name] = simplemenu_tree_all_data($menu_name);
}
return $menu_tree[$menu_name];
}
/**
* Modified menu_tree_all_data(), providing the complete menu tree below $root_menu
* (which can be *any* menu item, not just the root of a custom menu).
*
* @param $root_menu
* root menu item of the tree to return as "menu_name:mlid" (mlid = menu link id)
*
* @todo we don't actually need $menu_name, $mlid would be sufficient
*/
function simplemenu_tree_all_data($root_menu = 'navigation:0') {
static $tree = array();
list($menu_name, $mlid) = explode(':', $root_menu);
// Generate the cache ID.
// "links:navigation:all:2" means "all from root to 2" (what the ...), so for "all from 2 down" we do "links:navigation:all:2:all"
$cid = "links:$menu_name:all:$mlid" . ($mlid ? ':all' : '');
if (!isset($tree[$cid])) {
// If the static variable doesn't have the data, check {cache_menu}.
$cache = cache_get($cid, 'cache_menu');
if ($cache && isset($cache->data)) {
$data = $cache->data;
}
else {
// Build and run the query, and build the tree.
if ($mlid > 0) {
$item = menu_link_load($mlid);
// The tree is a subtree of $menu_name, so we need to restrict the query to
// this subtree.
$px = "p$item[depth]";
$where = " AND ml.$px = %d AND ml.mlid != %d";
$args = array($item[$px], $mlid);
}
else {
// Get all links in this menu.
$where = '';
$args = array();
}
array_unshift($args, $menu_name);
// Select the links from the table, and recursively build the tree. We
// LEFT JOIN since there is no match in {menu_router} for an external
// link.
$data['tree'] = menu_tree_data(db_query("
SELECT m.load_functions, m.to_arg_functions, m.access_callback, m.access_arguments, m.page_callback, m.page_arguments, m.title, m.title_callback, m.title_arguments, m.type, m.description, ml.*
FROM {menu_links} ml LEFT JOIN {menu_router} m ON m.path = ml.router_path
WHERE ml.menu_name = '%s'". $where ."
ORDER BY p1 ASC, p2 ASC, p3 ASC, p4 ASC, p5 ASC, p6 ASC, p7 ASC, p8 ASC, p9 ASC", $args));
$data['node_links'] = array();
menu_tree_collect_node_links($data['tree'], $data['node_links']);
// Cache the data.
cache_set($cid, $data, 'cache_menu');
}
// Check access for the current user to each item in the tree.
menu_tree_check_access($data['tree'], $data['node_links']);
$tree[$cid] = $data['tree'];
}
return $tree[$cid];
}
/**
* Determine if simplemenu should be displayed based on visibility settings.
*
* @return boolean
*/
function _simplemenu_page_visibility() {
$operator = variable_get('simplemenu_visibility_operator', 0);
$pages = variable_get('simplemenu_visibility_pages', '');
if ($pages) {
$path = drupal_get_path_alias($_GET['q']);
// Compare with the internal and path alias (if any).
$page_match = drupal_match_path($path, $pages);
if ($path != $_GET['q']) {
$page_match = $page_match || drupal_match_path($_GET['q'], $pages);
}
// When $operator has a value of 0, the menu is displayed on
// all pages except those listed in $pages. When set to 1, it
// is displayed only on those pages listed in $pages.
$page_match = !($operator ^ $page_match);
}
else {
$page_match = TRUE;
}
return $page_match;
}
/**
* Check whether the superuser/admin should be shown simplemenu.
*/
function _simplemenu_superuser_active() {
global $user;
return $user->uid != 1 || variable_get('simplemenu_uid1', 1) == 1;
}
// vim: ts=2 sw=2 et syntax=php