262 lines
		
	
	
		
			8.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			262 lines
		
	
	
		
			8.1 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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// $Id$
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/**
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 * @file
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 * Creates a simplemenu.
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 */
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/**
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 * Implementation of hook_menu().
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 */
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function simplemenu_menu() {
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  $items = array();
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  $items['admin/settings/simplemenu'] = array(
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    'title' => 'SimpleMenu',
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    'description' => 'Select the menu to display.',
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    'page callback' => 'drupal_get_form',
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    'page arguments' => array('simplemenu_admin_settings'),
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    'access arguments' => array('administer simplemenu'),
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    'file' => 'simplemenu.admin.inc',
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  );
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  return $items;
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}
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/**
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 * Is simplemenu enabled for this page request?
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 */
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function simplemenu_enabled() {
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  static $enabled;
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  if (!isset($enabled)) {
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    global $theme;
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    $exclusions = variable_get('simplemenu_exclusions', array());
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    $enabled = (user_access('view simplemenu')
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      && (!isset($exclusions[$theme]) || !$exclusions[$theme])
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      && _simplemenu_page_visibility()
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      && _simplemenu_superuser_active());
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  }
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  return $enabled;
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}
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/**
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 * Implementation of hook_init().
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 */
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function simplemenu_init() {
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  // do a simple access check here, since theme isn't available to check yet
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  if (user_access('view simplemenu') && simplemenu_enabled()) {
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    $path = drupal_get_path('module', 'simplemenu');
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    drupal_add_css($path .'/simplemenu.css');
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    $simplemenu_theme = variable_get('simplemenu_theme', 'original');
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    $theme_file = $path .'/themes/'. $simplemenu_theme .'/'. $simplemenu_theme .'.css';
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    if (is_file($theme_file)) {
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      drupal_add_css($theme_file);
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    }
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    $settings = array(
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      'effect' => variable_get('simplemenu_effect', 'opacity'),
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      'effectSpeed' => variable_get('simplemenu_effect_speed', 'fast'),
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      'element' => variable_get('simplemenu_element', 'body'),
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      'hideDelay' => variable_get('simplemenu_hide_delay', 800),
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      'placement' => variable_get('simplemenu_element_method', 'prepend'),
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      'detectPopup' => variable_get('simplemenu_detect_popop', 1),
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    );
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    drupal_add_js(array('simplemenu' => $settings), 'setting');
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    drupal_add_js($path .'/simplemenu.js');
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    drupal_add_js($path .'/superfish.js');
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  }
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}
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/**
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 * Implementation of hook_footer().
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 *
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 * This has been broken off of simplemenu_init() because simplemenu_get_menu()
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 * calls simplemenu_menu_tree() which calls menu_tree_output() which has several
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 * calls to theme().  This initializes the theme system too early causing hard
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 * to track bugs.
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 *
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 * @see http://drupal.org/node/219910
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 */
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function simplemenu_footer() {
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  if (simplemenu_enabled()) {
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    $simplemenu = drupal_to_js(simplemenu_get_menu());
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    $path = base_path() . drupal_get_path('module', 'simplemenu');
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    $output = "<script type=\"text/javascript\">var simplemenu = $simplemenu;</script>\n";
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    return $output;
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  }
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}
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/**
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 * Implementation of hook_perm().
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 */
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function simplemenu_perm() {
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  return array('view simplemenu', 'administer simplemenu');
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}
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/**
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 * Render an HTML list of links for a given menu.
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 */
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function simplemenu_get_menu() {
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  $output = '';
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  // if a user turned off menu module but SimpleMenu was previously set
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  // reset variable so a menu appears
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  $menu_name = module_exists('menu') ? variable_get('simplemenu_menu', 'navigation:0') : 'navigation:0';
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  $menu = simplemenu_menu_tree($menu_name);
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  if (!$menu) {
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    $menu = '<li><a href="'. url('admin/settings/simplemenu') .'">'. t('No menu items found. Try a different menu as the default.') .'</a></li>';
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  }
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  // This is ugly, I know, but it is the only way I can see to get the additional
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  // links inside the <ul> tags
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  if ($devel = simplemenu_get_devel()) {
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    $pos = strpos($menu, '>') + 1;
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    $menu = substr($menu, 0, $pos) . $devel . substr($menu, $pos);
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  }
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  $output .= $menu;
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  return $output;
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}
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/**
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 * Custom implementation of menu_tree().
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 * We want to retrieve the entire menu structure for a given menu,
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 * regardless of whether or not the menu item is expanded or not.
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 */
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function simplemenu_menu_tree($menu_name = 'navigation:0') {
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  static $menu_output = array();
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  if (!isset($menu_output[$menu_name])) {
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    $tree = simplemenu_tree_all_data($menu_name);
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    $menu_output[$menu_name] = menu_tree_output($tree);
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  }
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  return $menu_output[$menu_name];
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}
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/**
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 * Modified menu_tree_all_data(), providing the complete menu tree below $root_menu
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 * (which can be *any* menu item, not just the root of a custom menu).
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 *
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 * @param $root_menu
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 *   root menu item of the tree to return as "menu_name:mlid" (mlid = menu link id)
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 *
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 * @todo we don't actually need $menu_name, $mlid would be sufficient
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 */
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function simplemenu_tree_all_data($root_menu = 'navigation:0') {
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  static $tree = array();
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  list($menu_name, $mlid) = explode(':', $root_menu);
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  // Generate the cache ID.
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  // "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"
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  $cid = "links:$menu_name:all:$mlid". ($mlid ? ':all' : '');
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  if (!isset($tree[$cid])) {
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    // If the static variable doesn't have the data, check {cache_menu}.
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    $cache = cache_get($cid, 'cache_menu');
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    if ($cache && isset($cache->data)) {
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      $data = $cache->data;
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    }
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    else {
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      // Build and run the query, and build the tree.
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      if ($mlid > 0) {
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        $item = menu_link_load($mlid);
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        // The tree is a subtree of $menu_name, so we need to restrict the query to
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        // this subtree.
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        $px = "p$item[depth]";
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        $where = " AND ml.$px = %d AND ml.mlid != %d";
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        $args = array($item[$px], $mlid);
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      }
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      else {
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        // Get all links in this menu.
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        $where = '';
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        $args = array();
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      }
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      array_unshift($args, $menu_name);
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      // Select the links from the table, and recursively build the tree.  We
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      // LEFT JOIN since there is no match in {menu_router} for an external
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      // link.
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      $data['tree'] = menu_tree_data(db_query("
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        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.*
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        FROM {menu_links} ml LEFT JOIN {menu_router} m ON m.path = ml.router_path
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        WHERE ml.menu_name = '%s'". $where ."
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        ORDER BY p1 ASC, p2 ASC, p3 ASC, p4 ASC, p5 ASC, p6 ASC, p7 ASC, p8 ASC, p9 ASC", $args));
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      $data['node_links'] = array();
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      menu_tree_collect_node_links($data['tree'], $data['node_links']);
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      // Cache the data.
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      cache_set($cid, $data, 'cache_menu');
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    }
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    // Check access for the current user to each item in the tree.
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    menu_tree_check_access($data['tree'], $data['node_links']);
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    $tree[$cid] = $data['tree'];
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  }
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  return $tree[$cid];
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}
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/**
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 * Return a list of devel module links if the module is enabled
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 * and the user has access to this module.
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 */
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function simplemenu_get_devel() {
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  $output = '';
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  if (variable_get('simplemenu_devel', 0) && module_exists('devel')) {
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    if (user_access('access devel information')) {
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      $output = '<li class="expanded"><a href="'. url('admin/settings/devel') .'">'. t('Devel module') .'</a>';
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      $output .= simplemenu_menu_tree('devel');
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      $output .= '</li>';
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    }
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  }
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  return $output;
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}
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/**
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 * Determine if simplemenu should be displayed based on visibility settings.
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 *
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 * @return boolean
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 */
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function _simplemenu_page_visibility() {
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  $operator = variable_get('simplemenu_visibility_operator', 0);
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  $pages = variable_get('simplemenu_visibility_pages', '');
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  if ($pages) {
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    $path = drupal_get_path_alias($_GET['q']);
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    // Compare with the internal and path alias (if any).
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    $page_match = drupal_match_path($path, $pages);
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    if ($path != $_GET['q']) {
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      $page_match = $page_match || drupal_match_path($_GET['q'], $pages);
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    }
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    // When $operator has a value of 0, the menu is displayed on
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    // all pages except those listed in $pages. When set to 1, it
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    // is displayed only on those pages listed in $pages.
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    $page_match = !($operator ^ $page_match);
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  }
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  else {
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    $page_match = TRUE;
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  }
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  return $page_match;
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}
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/**
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 * Check whether the superuser/admin should be shown simplemenu.
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 */
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function _simplemenu_superuser_active() {
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  global $user;
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  return $user->uid != 1 || variable_get('simplemenu_uid1', 1) == 1;
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}
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// vim: ts=2 sw=2 et syntax=php
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