include/lib/menu_pages.php

   1 <?php
   2 /************************************************************************/
   3 /* ATutor                                                                                                                               */
   4 /************************************************************************/
   5 /* Copyright (c) 2002-2008 by Greg Gay, Joel Kronenberg & Heidi Hazelton*/
   6 /* Adaptive Technology Resource Centre / University of Toronto                  */
   7 /* http://atutor.ca                                                                                                             */
   8 /*                                                                                                                                              */
   9 /* This program is free software. You can redistribute it and/or                */
  10 /* modify it under the terms of the GNU General Public License                  */
  11 /* as published by the Free Software Foundation.                                                */
  12 /************************************************************************/
  13 // $Id$
  14 if (!defined('AT_INCLUDE_PATH')) { exit; }
  15 global $_config;
  16 global $_pages;
  17
  18 /*
  19         5 sections: public, my_start_page, course, admin, home
  20 */
  21 if (isset($_pages[AT_NAV_ADMIN])) {
  22         array_unshift($_pages[AT_NAV_ADMIN], 'admin/index.php', 'admin/modules/index.php');
  23 }
  24
  25 if($_config['allow_browse'] && $_config['just_social'] != "1"){
  26         $browse_tab = "browse.php";
  27 }
  28 if($_config['allow_registration']){
  29         $reg_tab = "registration.php";
  30 }
  31
  32 if($_config['just_social']){
  33
  34 $_pages[AT_NAV_START]  = array_merge(array('users/profile.php', 'users/preferences.php'), (isset($_pages[AT_NAV_START]) ? (array) $_pages[AT_NAV_START] : array()));
  35
  36 }else{
  37
  38 $_pages[AT_NAV_START]  = array_merge(array('users/index.php' , 'users/profile.php', 'users/preferences.php'), (isset($_pages[AT_NAV_START]) ? (array) $_pages[AT_NAV_START] : array()));
  39
  40 }
  41 $_pages[AT_NAV_PUBLIC] = array_merge(array('login.php',$reg_tab,$browse_tab), (isset($_pages[AT_NAV_PUBLIC]) ? $_pages[AT_NAV_PUBLIC] : array()));
  42
  43
  44 //$_pages[AT_NAV_START]  = array_merge(array($my_tab , 'users/profile.php', 'users/preferences.php'), (isset($_pages[AT_NAV_START]) ? (array) $_pages[AT_NAV_START] : array()));
  45 $_pages[AT_NAV_COURSE] = array('index.php');
  46 $_pages[AT_NAV_HOME]   = array();
  47
  48 if (isset($_SESSION['course_id']) && $_SESSION['course_id'] > 0) {
  49         $main_links = $home_links = $side_menu = array();
  50
  51         if ($system_courses[$_SESSION['course_id']]['main_links']) {
  52                 $main_links = explode('|', $system_courses[$_SESSION['course_id']]['main_links']);
  53                 foreach ($main_links as $link) {
  54                         if (isset($_pages[$link])) {
  55                                 $_pages[$link]['parent'] = AT_NAV_COURSE;
  56                         }
  57                 }
  58                 $_pages[AT_NAV_COURSE] = array_merge($_pages[AT_NAV_COURSE], $main_links);
  59         }
  60
  61         if ($system_courses[$_SESSION['course_id']]['home_links']) {
  62                 $home_links = explode('|', $system_courses[$_SESSION['course_id']]['home_links']);
  63                 foreach ($home_links as $link) {
  64                         if (isset($_pages[$link])) {
  65                                 $_pages[AT_NAV_HOME][] = $link;
  66                         }
  67                 }
  68         }
  69
  70         if (authenticate(AT_PRIV_ADMIN, AT_PRIV_RETURN)) {
  71                 $_pages[AT_NAV_COURSE][] = 'tools/index.php';
  72         } else if ($_SESSION['privileges']) {
  73
  74                 /**
  75                  * the loop and all this module priv checking is done to hide the Manage tab
  76                  * when this student has privileges, but no items linked from the Manage tab.
  77                  * Example: the File Storage privilege does not have a Manage tab item.
  78                  * In the best case it stops after the first found link.
  79                  * In the worst case it goes through all the modules and doesn't find a link.
  80                  */
  81                 $module_list = $moduleFactory->getModules(AT_MODULE_STATUS_ENABLED, 0, TRUE);
  82                 $keys = array_keys($module_list);
  83
  84                 foreach ($keys as $module_name) {
  85                         $module =& $module_list[$module_name];
  86                         if ($module->getPrivilege() && authenticate($module->getPrivilege(), AT_PRIV_RETURN) && ($module->getChildPage('tools/index.php'))) {
  87                                 $_pages[AT_NAV_COURSE][] = 'tools/index.php';
  88                                 break;
  89                         }
  90                 }
  91         }
  92 } else if (isset($_SESSION['course_id']) && $_SESSION['course_id'] == -1) {
  93         /* admin pages */
  94
  95         $_pages['admin/index.php']['title_var'] = 'home';
  96         $_pages['admin/index.php']['parent']    = AT_NAV_ADMIN;
  97         $_pages['admin/index.php']['guide']     = 'admin/?p=configuration.php';
  98         $_pages['admin/index.php']['children'] = array_merge(array('admin/admins/my_edit.php', 'admin/admins/my_password.php'), isset($_pages['admin/index.php']['children']) ?  $_pages['admin/index.php']['children'] : array());
  99
 100         $_pages['admin/admins/my_edit.php']['title_var'] = 'my_account';
 101         $_pages['admin/admins/my_edit.php']['parent']    = 'admin/index.php';
 102         $_pages['admin/admins/my_edit.php']['guide']     = 'admin/?p=my_account.php';
 103
 104         $_pages['admin/admins/my_password.php']['title_var'] = 'change_password';
 105         $_pages['admin/admins/my_password.php']['parent']    = 'admin/index.php';
 106
 107         if (admin_authenticate(AT_ADMIN_PRIV_USERS, AT_PRIV_RETURN)) {
 108                 $_pages[AT_NAV_ADMIN][] = 'admin/config_edit.php';
 109
 110                 $_pages['admin/config_edit.php']['title_var'] = 'system_preferences';
 111                 $_pages['admin/config_edit.php']['parent']    = AT_NAV_ADMIN;
 112                 $_pages['admin/config_edit.php']['guide']     = 'admin/?p=system_preferences.php';
 113                 $_pages['admin/config_edit.php']['children']  = array_merge((array) $_pages['admin/config_edit.php']['children'], array('admin/error_logging.php'));
 114         }
 115         $_pages['admin/fix_content.php']['title_var'] = 'fix_content_ordering';
 116         $_pages['admin/fix_content.php']['parent']    = 'admin/index.php';
 117
 118         $_pages['admin/error_logging.php']['title_var'] = 'error_logging';
 119         $_pages['admin/error_logging.php']['parent']    = 'admin/config_edit.php';
 120         $_pages['admin/error_logging.php']['guide']     = 'admin/?p=error_logging.php';
 121         $_pages['admin/error_logging.php']['children']  = array_merge(array('admin/error_logging_bundle.php', 'admin/error_logging_reset.php'), isset($_pages['admin/error_logging.php']['children']) ? $_pages['admin/error_logging.php']['children'] : array());
 122
 123         $_pages['admin/error_logging_reset.php']['title_var'] = 'reset_log';
 124         $_pages['admin/error_logging_reset.php']['parent']    = 'admin/error_logging.php';
 125
 126         $_pages['admin/error_logging_bundle.php']['title_var'] = 'report_errors';
 127         $_pages['admin/error_logging_bundle.php']['parent']    = 'admin/error_logging.php';
 128
 129         $_pages['admin/error_logging_details.php']['title_var'] = 'viewing_profile_bugs';
 130         $_pages['admin/error_logging_details.php']['parent']    = 'admin/error_logging.php';
 131
 132         $_pages['admin/error_logging_view.php']['title_var'] = 'viewing_errors';
 133         $_pages['admin/error_logging_view.php']['parent']    = 'admin/error_logging_details.php';
 134
 135         if (admin_authenticate(AT_ADMIN_PRIV_ADMIN, TRUE)) {
 136                 // hide modules from non-super admins
 137                 $_pages['admin/modules/index.php']['title_var'] = 'modules';
 138                 $_pages['admin/modules/index.php']['parent']    = AT_NAV_ADMIN;
 139                 $_pages['admin/modules/index.php']['guide']     = 'admin/?p=modules.php';
 140                 $_pages['admin/modules/index.php']['children']  = array('admin/modules/install_modules.php');
 141
 142                 $_pages['admin/modules/details.php']['title_var'] = 'details';
 143                 $_pages['admin/modules/details.php']['parent']    = 'admin/modules/index.php';
 144
 145                 $_pages['admin/modules/module_uninstall_step_1.php']['title_var'] = 'module_uninstall';
 146                 $_pages['admin/modules/module_uninstall_step_1.php']['parent']    = 'admin/modules/index.php';
 147
 148                 $_pages['admin/modules/module_uninstall_step_2.php']['title_var'] = 'module_uninstall';
 149                 $_pages['admin/modules/module_uninstall_step_2.php']['parent']    = 'admin/modules/index.php';
 150
 151                 $_pages['admin/modules/module_uninstall_step_3.php']['title_var'] = 'module_uninstall';
 152                 $_pages['admin/modules/module_uninstall_step_3.php']['parent']    = 'admin/modules/index.php';
 153
 154                 $_pages['admin/modules/install_modules.php']['title_var'] = 'install_modules';
 155                 $_pages['admin/modules/install_modules.php']['parent']    = 'admin/modules/index.php';
 156                 $_pages['admin/modules/install_modules.php']['guide']     = 'admin/?p=modules.php';
 157
 158                 $_pages['admin/modules/version_history.php']['title_var'] = 'version_history';
 159                 $_pages['admin/modules/version_history.php']['parent']    = 'admin/modules/install_modules.php';
 160
 161                 $_pages['admin/modules/module_install_step_1.php']['title_var'] = 'details';
 162                 $_pages['admin/modules/module_install_step_1.php']['parent']    = 'admin/modules/install_modules.php';
 163
 164                 $_pages['admin/modules/module_install_step_2.php']['title_var'] = 'details';
 165                 $_pages['admin/modules/module_install_step_2.php']['parent']    = 'admin/modules/install_modules.php';
 166
 167                 $_pages['admin/modules/module_install_step_3.php']['title_var'] = 'details';
 168                 $_pages['admin/modules/module_install_step_3.php']['parent']    = 'admin/modules/install_modules.php';
 169
 170                         $_pages['admin/modules/confirm.php']['title_var'] = 'confirm';
 171                         $_pages['admin/modules/confirm.php']['parent']    = 'admin/modules/add_new.php';
 172
 173                 $_pages['admin/cron_config.php']['title_var'] = 'cron_config';
 174                 $_pages['admin/cron_config.php']['parent']    = 'admin/config_edit.php';
 175                 $_pages['admin/cron_config.php']['guide']     = 'admin/?p=cron_setup.php';
 176                 $_pages['admin/config_edit.php']['children']  = array_merge((array) $_pages['admin/config_edit.php']['children'], array('admin/cron_config.php'));
 177
 178                 $_pages['admin/auto_enroll.php']['title_var'] = 'auto_enroll';
 179                 $_pages['admin/auto_enroll.php']['parent']    = 'admin/config_edit.php';
 180                 $_pages['admin/auto_enroll.php']['guide']     = 'admin/?p=auto_enroll.php';
 181                 $_pages['admin/auto_enroll.php']['children']  = array_merge(array('admin/auto_enroll_edit.php'));
 182                 $_pages['admin/config_edit.php']['children']  = array_merge((array) $_pages['admin/config_edit.php']['children'], array('admin/auto_enroll.php'));
 183
 184                 $_pages['admin/auto_enroll_edit.php']['title_var'] = 'auto_enroll_edit';
 185                 $_pages['admin/auto_enroll_edit.php']['parent']    = 'admin/auto_enroll.php';
 186
 187                 $_pages['admin/auto_enroll_delete.php']['title_var'] = 'auto_enroll_delete';
 188                 $_pages['admin/auto_enroll_delete.php']['parent']    = 'admin/auto_enroll.php';
 189
 190         }
 191 }
 192
 193
 194 /* public pages */
 195 $_pages['registration.php']['title_var'] = 'register';
 196 $_pages['registration.php']['parent']    = AT_NAV_PUBLIC;
 197 $_pages['registration.php']['children']  = isset($_pages['browse.php']['children']) ? $_pages['browse.php']['children'] : array();
 198 $_pages['registration.php']['guide']     = 'general/?p=register.php';
 199
 200 $_pages['browse.php']['title_var'] = 'browse_courses';
 201 $_pages['browse.php']['parent']    = AT_NAV_PUBLIC;
 202 $_pages['browse.php']['children']  = isset($_pages['browse.php']['children']) ? $_pages['browse.php']['children'] : array();
 203 $_pages['browse.php']['guide']     = 'general/?p=browse_courses.php';
 204
 205 $_pages['login.php']['title_var'] = 'login';
 206 $_pages['login.php']['parent']    = AT_NAV_PUBLIC;
 207 $_pages['login.php']['children']  = array_merge(array('password_reminder.php'), isset($_pages['login.php']['children']) ? $_pages['login.php']['children'] : array());
 208 $_pages['login.php']['guide']     = 'general/?p=login.php';
 209
 210 $_pages['confirm.php']['title_var'] = 'confirm';
 211 $_pages['confirm.php']['parent']    = AT_NAV_PUBLIC;
 212
 213 $_pages['password_reminder.php']['title_var'] = 'password_reminder';
 214 $_pages['password_reminder.php']['parent']    = 'login.php';
 215 $_pages['password_reminder.php']['guide']     = 'general/?p=password_reminder.php';
 216
 217 $_pages['logout.php']['title_var'] = 'logout';
 218 $_pages['logout.php']['parent']    = AT_NAV_PUBLIC;
 219
 220 /* my start page pages */
 221 $_pages['users/index.php']['title_var'] = 'my_courses';
 222 $_pages['users/index.php']['parent']    = AT_NAV_START;
 223 $_pages['users/index.php']['guide']     = 'general/?p=my_courses.php';
 224 if (isset($_SESSION['member_id']) && $_SESSION['member_id'] && (!isset($_SESSION['course_id']) || !$_SESSION['course_id'])) {
 225         if ((get_instructor_status() === FALSE) && (!defined('ALLOW_INSTRUCTOR_REQUESTS') || !ALLOW_INSTRUCTOR_REQUESTS)) {
 226                 $_pages['users/index.php']['children']  = array_merge(array('users/browse.php'), (array) $_pages['users/index.php']['children']);
 227         } else {
 228                 $_pages['users/index.php']['children']  = array_merge(array('users/browse.php', 'users/create_course.php'), isset($_pages['users/index.php']['children']) ? $_pages['users/index.php']['children'] : array());
 229         }
 230 }
 231
 232         $_pages['users/browse.php']['title_var'] = 'browse_courses';
 233         $_pages['users/browse.php']['parent']    = 'users/index.php';
 234         $_pages['users/browse.php']['guide']     = 'general/?p=browse_courses.php';
 235
 236         $_pages['users/create_course.php']['title_var'] = 'create_course';
 237         $_pages['users/create_course.php']['parent']    = 'users/index.php';
 238         $_pages['users/create_course.php']['guide']    = 'instructor/?p=creating_courses.php';
 239
 240         $_pages['users/private_enroll.php']['title_var'] = 'enroll';
 241         $_pages['users/private_enroll.php']['parent']    = 'users/index.php';
 242
 243         $_pages['users/remove_course.php']['title_var'] = 'unenroll';
 244         $_pages['users/remove_course.php']['parent']    = 'users/index.php';
 245
 246 $_pages['users/profile.php']['title_var']    = 'profile';
 247 $_pages['users/profile.php']['parent']   = AT_NAV_START;
 248 $_pages['users/profile.php']['guide']     = 'general/?p=profile.php';
 249 $_pages['users/profile.php']['children']  = array_merge(array('users/password_change.php', 'users/email_change.php'), (array) $_pages['users/profile.php']['children']);
 250
 251         $_pages['users/password_change.php']['title_var'] = 'change_password';
 252         $_pages['users/password_change.php']['parent']    = 'users/profile.php';
 253         //$_pages['users/password_change.php']['guide']    = 'instructor/?p=creating_courses.php';
 254
 255         $_pages['users/email_change.php']['title_var'] = 'change_email';
 256         $_pages['users/email_change.php']['parent']    = 'users/profile.php';
 257
 258 $_pages['users/preferences.php']['title_var']  = 'preferences';
 259 $_pages['users/preferences.php']['parent'] = AT_NAV_START;
 260 $_pages['users/preferences.php']['guide']  = 'general/?p=preferences.php';
 261
 262
 263 /* course pages */
 264 $_pages['index.php']['title_var']  = 'home';
 265 $_pages['index.php']['parent'] = AT_NAV_COURSE;
 266
 267 $_pages['enroll.php']['title_var']  = 'enroll';
 268 $_pages['enroll.php']['parent'] = AT_NAV_COURSE;
 269
 270 /* instructor pages: */
 271 $_pages['tools/index.php']['title_var'] = 'manage';
 272 $_pages['tools/index.php']['parent']    = AT_NAV_COURSE;
 273
 274 $_pages['inbox/index.php']['title_var'] = 'inbox';
 275 $_pages['inbox/index.php']['children']  = array_merge(array('inbox/sent_messages.php', 'inbox/send_message.php', 'inbox/export.php'), isset($_pages['inbox/index.php']['children']) ? $_pages['inbox/index.php']['children'] : array());
 276
 277         $_pages['inbox/sent_messages.php']['title_var'] = 'sent_messages';
 278         $_pages['inbox/sent_messages.php']['parent']    = 'inbox/index.php';
 279
 280         $_pages['inbox/send_message.php']['title_var'] = 'send_message';
 281         $_pages['inbox/send_message.php']['parent']    = 'inbox/index.php';
 282
 283         $_pages['inbox/export.php']['title_var'] = 'export';
 284         $_pages['inbox/export.php']['parent']    = 'inbox/index.php';
 285
 286 $_pages['profile.php']['title_var'] = 'profile';
 287 $_pages['profile.php']['parent']    = 'index.php';
 288
 289
 290 /* global pages */
 291 $_pages['about.php']['title_var']  = 'about_atutor';
 292
 293 $_pages['404.php']['title_var']  = '404';
 294
 295 $_pages['help/index.php']['title_var']  = 'help';
 296 $_pages['help/index.php']['children'] = array_merge(array('help/accessibility.php', 'help/contact_support.php'), isset($_pages['help/index.php']['children']) ? $_pages['help/index.php']['children'] : array());
 297
 298         $_pages['help/accessibility.php']['title_var']  = 'accessibility';
 299         $_pages['help/accessibility.php']['parent'] = 'help/index.php';
 300
 301         $_pages['help/contact_support.php']['title_var']  = 'contact_support';
 302         $_pages['help/contact_support.php']['parent'] = 'help/index.php';
 303
 304
 305 $_pages['contact_instructor.php']['title_var']  = 'contact_instructor';
 306
 307 $current_page = substr($_SERVER['PHP_SELF'], strlen($_base_path));
 308
 309 function get_num_new_messages() {
 310         global $db;
 311         static $num_messages;
 312
 313         if (isset($num_messages)) {
 314                 return $num_messages;
 315         }
 316         $sql    = "SELECT COUNT(*) AS cnt FROM ".TABLE_PREFIX."messages WHERE to_member_id=$_SESSION[member_id] AND new=1";
 317         $result = mysql_query($sql, $db);
 318         $row    = mysql_fetch_assoc($result);
 319         $num_messages = $row['cnt'];
 320
 321         return $num_messages;
 322 }
 323
 324 function get_main_navigation($current_page) {
 325         global $_pages, $_base_path;
 326
 327         $parent_page = $_pages[$current_page]['parent'];
 328         $_top_level_pages = array();
 329
 330         if (isset($parent_page) && defined($parent_page)) {
 331                 foreach($_pages[$parent_page] as $page) {
 332                         if (isset($_pages[$page])) {
 333                                 if (isset($_pages[$page]['title'])) {
 334                                         $_page_title = $_pages[$page]['title'];
 335                                 } else {
 336                                         $_page_title = _AT($_pages[$page]['title_var']);
 337                                 }
 338
 339                                 $_top_level_pages[] = array('url' => $_base_path . url_rewrite($page), 'title' => $_page_title, 'img' => $_base_path.$_pages[$page]['img'], 'tool_file' => $tool_file);
 340                         }
 341                 }
 342         } else if (isset($parent_page)) {
 343                 return get_main_navigation($parent_page);
 344         }
 345
 346         return $_top_level_pages;
 347 }
 348
 349 function get_current_main_page($current_page) {
 350         global $_pages, $_base_path;
 351
 352         $parent_page = $_pages[$current_page]['parent'];
 353
 354         if (isset($parent_page) && defined($parent_page)) {
 355                 return $_base_path . url_rewrite($current_page);
 356         } else if (isset($parent_page)) {
 357                 return get_current_main_page($parent_page);
 358         }
 359 }
 360
 361 function get_sub_navigation($current_page) {
 362         global $_pages, $_base_path;
 363
 364         if (isset($current_page) && defined($current_page)) {
 365                 // reached the top
 366                 return array();
 367         } else if (isset($_pages[$current_page]['children'])) {
 368                 if (isset($_pages[$current_page]['title'])) {
 369                         $_page_title = $_pages[$current_page]['title'];
 370                 } else {
 371                         $_page_title = _AT($_pages[$current_page]['title_var']);
 372                 }
 373
 374                 $_sub_level_pages[] = array('url' => $_base_path . $current_page, 'title' => $_page_title);
 375                 foreach ($_pages[$current_page]['children'] as $child) {
 376
 377                         if (isset($_pages[$child]['title'])) {
 378                                 $_page_title = $_pages[$child]['title'];
 379                         } else {
 380                                 $_page_title = _AT($_pages[$child]['title_var']);
 381                         }
 382
 383                         $_sub_level_pages[] = array('url' => $_base_path . $child, 'title' => $_page_title, 'has_children' => isset($_pages[$child]['children']));
 384                 }
 385         } else if (isset($_pages[$current_page]['parent'])) {
 386                 // no children
 387
 388                 $parent_page = $_pages[$current_page]['parent'];
 389                 return get_sub_navigation($parent_page);
 390         }
 391
 392         return $_sub_level_pages;
 393 }
 394
 395 function get_current_sub_navigation_page($current_page) {
 396         global $_pages, $_base_path;
 397
 398         $parent_page = $_pages[$current_page]['parent'];
 399
 400         if (isset($parent_page) && defined($parent_page)) {
 401                 return $_base_path . $current_page;
 402         } else {
 403                 return $_base_path . $current_page;
 404         }
 405 }
 406
 407 function get_path($current_page) {
 408         global $_pages, $_base_path;
 409
 410         $parent_page = $_pages[$current_page]['parent'];
 411
 412         if (isset($_pages[$current_page]['title'])) {
 413                 $_page_title = $_pages[$current_page]['title'];
 414         } else {
 415                 $_page_title = _AT($_pages[$current_page]['title_var']);
 416         }
 417
 418         if (isset($parent_page) && defined($parent_page)) {
 419                 $path[] = array('url' => $_base_path . url_rewrite($current_page), 'title' => $_page_title);
 420                 return $path;
 421         } else if (isset($parent_page)) {
 422                 $path[] = array('url' => $_base_path . url_rewrite($current_page), 'title' => $_page_title);
 423                 $path = array_merge((array) $path, get_path($parent_page));
 424         } else {
 425                 $path[] = array('url' => $_base_path . url_rewrite($current_page), 'title' => $_page_title);
 426         }
 427
 428         return $path;
 429 }
 430
 431 function get_home_navigation($home_array='') {
 432         global $_pages, $_list, $_base_path;
 433
 434         // set default home_array to course index navigation array
 435         if (!is_array($home_array)) $home_array = $_pages[AT_NAV_HOME];
 436
 437         $home_links = array();
 438         foreach ($home_array as $child) {                                       //esecuzione del ciclo fin quando non saranno terminati i moduli presenti nella home-page del corso
 439                 if (isset($_pages[$child])) {
 440                         // initialization
 441                         $title = $icon = $sub_file = $image = $text = $tool_file = '';
 442
 443                         if (isset($_pages[$child]['title'])) {                          //viene prelevato il titolo che dovrà poi essere utilizzato nella visualizzazione
 444                                 $title = $_pages[$child]['title'];
 445                         } else {
 446                                 $title = _AT($_pages[$child]['title_var']);
 447                         }
 448                         if(isset($_pages[$child]['icon'])){                                     //si controlla se è presente l'icona inserita nel modulo di rifrimento. si ricorda che l'icona è inserita solo per i moduli che prevedono possibili sottocontenuti.
 449                                 $icon = $_base_path.$_pages[$child]['icon'];    //in caso positivo viene prelevata e inserita in una variabile di appoggio che poi sarà a sua volta inserita all'interno dell'array finale home_links[]
 450                         } else if(isset($_pages[$child]['text'])){                      //nel caso in cui non sia presente un' icona associata si controlla se è stato settata il testo (per moduli privi di sottocontenuti).
 451                                 $text = $_pages[$child]['text'];                                //il testo viene inserito in una variabile d'appoggio e successivamente nell'array.
 452                         }
 453
 454                         if (isset($_list[$_pages[$child]['title_var']]))        //viene prelevato il path del file che dovrà poi essere richiamato nella visualizzazione dei sottocontenuti. solo i moduli che prevedono sottocontenuti avranno un file di riferimento.
 455                                 $sub_file = $_list[$_pages[$child]['title_var']]['file'];
 456
 457                         $real_image_in_theme = AT_INCLUDE_PATH.'../themes/'.$_SESSION['prefs']['PREF_THEME'].'/'.$_pages[$child]['img'];
 458                         $image_in_theme = $_base_path.'themes/'.$_SESSION['prefs']['PREF_THEME'].'/'.$_pages[$child]['img'];
 459
 460                         // look for images in theme folder. If not exists, use images relative to ATutor root folder
 461                         if (file_exists($real_image_in_theme))
 462                                 $image = $image_in_theme;
 463                         else
 464                                 $image = $_base_path.$_pages[$child]['img'];
 465
 466                         // inclusion of all data necessary for displaying the modules on the home-page. Set by default to check the visible because the modules will be loaded all visible in the home.
 467                         $home_links[] = array('url' => $_base_path . url_rewrite($child), 'title' => $title, 'img' => $image, 'icon' => $icon, 'text' => $text, 'sub_file' => $sub_file, 'tool_file' => $tool_file, 'check'=> 'visible');
 468                 }
 469         }
 470         return $home_links;
 471 }
 472
 473 ?>