include/lib/menu_pages.php

   1 <?php
   2 /************************************************************************/
   3 /* ATutor                                                                                                                               */
   4 /************************************************************************/
   5 /* Copyright (c) 2002-2010                                              */
   6 /* Inclusive Design Institute                                           */
   7 /* http://atutor.ca                                                     */
   8 /* This program is free software. You can redistribute it and/or        */
   9 /* modify it under the terms of the GNU General Public License          */
  10 /* as published by the Free Software Foundation.                        */
  11 /************************************************************************/
  12 // $Id$
  13 if (!defined('AT_INCLUDE_PATH')) { exit; }
  14 global $_config;
  15 global $_pages;
  16 global $system_courses;
  17
  18 /*
  19         5 sections: public, my_start_page, course, admin, home
  20 */
  21 if (isset($_pages[AT_NAV_ADMIN])) {
  22     array_unshift($_pages[AT_NAV_ADMIN], 'admin/index.php', 'mods/_core/modules/index.php');
  23 }
  24
  25 if($_config['allow_browse'] && $_config['just_social'] != "1") {
  26 if($_SESSION['valid_user']){
  27     $browse_tab = "users/browse.php";
  28 }else{
  29     $browse_tab = "browse.php";
  30 }
  31 }
  32 if($_config['allow_registration']) {
  33     $reg_tab = "registration.php";
  34 }
  35
  36 if($_config['just_social']) {
  37
  38     $_pages[AT_NAV_START]  = array_merge(array('users/profile.php', 'users/preferences.php'), (isset($_pages[AT_NAV_START]) ? (array) $_pages[AT_NAV_START] : array()));
  39
  40 }else {
  41
  42     $_pages[AT_NAV_START]  = array_merge(array('users/index.php' , $browse_tab, 'users/profile.php', 'users/preferences.php'), (isset($_pages[AT_NAV_START]) ? (array) $_pages[AT_NAV_START] : array()));
  43
  44 }
  45 $_pages[AT_NAV_PUBLIC] = array_merge(array('login.php',$reg_tab,$browse_tab), (isset($_pages[AT_NAV_PUBLIC]) ? $_pages[AT_NAV_PUBLIC] : array()));
  46
  47
  48 //$_pages[AT_NAV_START]  = array_merge(array($my_tab , 'users/profile.php', 'users/preferences.php'), (isset($_pages[AT_NAV_START]) ? (array) $_pages[AT_NAV_START] : array()));
  49 //The following line is needed to add MyCourses to the main nav tabs, but other adaptations are needed to have this function properly
  50 //$_pages[AT_NAV_COURSE] = array('users/index.php','index.php');
  51 $_pages[AT_NAV_COURSE] = array('index.php');
  52 $_pages[AT_NAV_HOME]   = array();
  53
  54 if (isset($_SESSION['course_id']) && $_SESSION['course_id'] > 0) {
  55     $main_links = $home_links = $side_menu = array();
  56
  57     if ($system_courses[$_SESSION['course_id']]['main_links']) {
  58         $main_links = explode('|', $system_courses[$_SESSION['course_id']]['main_links']);
  59         foreach ($main_links as $link) {
  60             if (isset($_pages[$link])) {
  61                 $_pages[$link]['parent'] = AT_NAV_COURSE;
  62             }
  63         }
  64         $_pages[AT_NAV_COURSE] = array_merge($_pages[AT_NAV_COURSE], $main_links);
  65     }
  66
  67     if ($system_courses[$_SESSION['course_id']]['home_links']) {
  68         $home_links = explode('|', $system_courses[$_SESSION['course_id']]['home_links']);
  69         foreach ($home_links as $link) {
  70             if (isset($_pages[$link])) {
  71                 $_pages[AT_NAV_HOME][] = $link;
  72             }
  73         }
  74     }
  75
  76     if (authenticate(AT_PRIV_ADMIN, AT_PRIV_RETURN)) {
  77         $_pages[AT_NAV_COURSE][] = 'tools/index.php';
  78     } else if ($_SESSION['privileges']) {
  79
  80         /**
  81          * the loop and all this module priv checking is done to hide the Manage tab
  82          * when this student has privileges, but no items linked from the Manage tab.
  83          * Example: the File Storage privilege does not have a Manage tab item.
  84          * In the best case it stops after the first found link.
  85          * In the worst case it goes through all the modules and doesn't find a link.
  86          */
  87             $module_list = $moduleFactory->getModules(AT_MODULE_STATUS_ENABLED, 0, TRUE);
  88             $keys = array_keys($module_list);
  89
  90             foreach ($keys as $module_name) {
  91                 $module =& $module_list[$module_name];
  92                 if ($module->getPrivilege() && authenticate($module->getPrivilege(), AT_PRIV_RETURN) && ($module->getChildPage('tools/index.php'))) {
  93                     $_pages[AT_NAV_COURSE][] = 'tools/index.php';
  94                     break;
  95                 }
  96             }
  97         }
  98 } else if (isset($_SESSION['course_id']) && $_SESSION['course_id'] == -1) {
  99         /* admin pages */
 100         $_pages['admin/index.php']['title_var'] = 'admin_home';
 101         $_pages['admin/index.php']['parent']    = AT_NAV_ADMIN;
 102         $_pages['admin/index.php']['guide']     = 'admin/?p=configuration.php';
 103         $_pages['admin/index.php']['children'] = array_merge(array('mods/_core/users/admins/my_edit.php', 'mods/_core/users/admins/my_password.php'), isset($_pages['mods/_core/users/index.php']['children']) ?  $_pages['admin/index.php']['children'] : array());
 104
 105         $_pages['mods/_core/users/admins/my_edit.php']['title_var'] = 'my_account';
 106         $_pages['mods/_core/users/admins/my_edit.php']['parent']    = 'admin/index.php';
 107         $_pages['mods/_core/users/admins/my_edit.php']['guide']     = 'admin/?p=my_account.php';
 108
 109         $_pages['mods/_core/users/admins/my_password.php']['title_var'] = 'change_password';
 110         $_pages['mods/_core/users/admins/my_password.php']['parent']    = 'admin/index.php';
 111
 112         if (admin_authenticate(AT_ADMIN_PRIV_ADMIN, AT_PRIV_RETURN)) {
 113         //hide system preference from non-super admins
 114             $_pages[AT_NAV_ADMIN][] = 'admin/config_edit.php';
 115
 116             $_pages['admin/config_edit.php']['title_var'] = 'system_preferences';
 117             $_pages['admin/config_edit.php']['parent']    = AT_NAV_ADMIN;
 118             $_pages['admin/config_edit.php']['guide']     = 'admin/?p=system_preferences.php';
 119             $_pages['admin/config_edit.php']['children']  = array_merge((array) $_pages['admin/config_edit.php']['children'], array('admin/error_logging.php','mods/_standard/social/index_admin.php'));
 120         }
 121         $_pages['admin/fix_content.php']['title_var'] = 'fix_content_ordering';
 122         $_pages['admin/fix_content.php']['parent']    = 'admin/index.php';
 123
 124         $_pages['admin/error_logging.php']['title_var'] = 'error_logging';
 125         $_pages['admin/error_logging.php']['parent']    = 'admin/config_edit.php';
 126         $_pages['admin/error_logging.php']['guide']     = 'admin/?p=error_logging.php';
 127         $_pages['admin/error_logging.php']['children']  = array_merge(array('admin/error_logging_bundle.php', 'admin/error_logging_reset.php'), isset($_pages['admin/error_logging.php']['children']) ? $_pages['admin/error_logging.php']['children'] : array());
 128
 129         $_pages['admin/error_logging_reset.php']['title_var'] = 'reset_log';
 130         $_pages['admin/error_logging_reset.php']['parent']    = 'admin/error_logging.php';
 131
 132         $_pages['admin/error_logging_bundle.php']['title_var'] = 'report_errors';
 133         $_pages['admin/error_logging_bundle.php']['parent']    = 'admin/error_logging.php';
 134
 135         $_pages['admin/error_logging_details.php']['title_var'] = 'viewing_profile_bugs';
 136         $_pages['admin/error_logging_details.php']['parent']    = 'admin/error_logging.php';
 137
 138         $_pages['admin/error_logging_view.php']['title_var'] = 'viewing_errors';
 139         $_pages['admin/error_logging_view.php']['parent']    = 'admin/error_logging_details.php';
 140
 141         if (admin_authenticate(AT_ADMIN_PRIV_ADMIN, TRUE)) {
 142         // hide modules from non-super admins
 143
 144             $_pages['mods/_core/modules/index.php']['title_var'] = 'modules';
 145             $_pages['mods/_core/modules/index.php']['parent']    = AT_NAV_ADMIN;
 146             $_pages['mods/_core/modules/index.php']['guide']     = 'admin/?p=modules.php';
 147             $_pages['mods/_core/modules/index.php']['children']  = array('mods/_core/modules/install_modules.php');
 148
 149             $_pages['mods/_core/modules/details.php']['title_var'] = 'details';
 150             $_pages['mods/_core/modules/details.php']['parent']    = 'mods/_core/modules/index.php';
 151
 152             $_pages['mods/_core/modules/module_uninstall_step_1.php']['title_var'] = 'module_uninstall';
 153             $_pages['mods/_core/modules/module_uninstall_step_1.php']['parent']    = 'mods/_core/modules/index.php';
 154
 155             $_pages['mods/_core/modules/module_uninstall_step_2.php']['title_var'] = 'module_uninstall';
 156             $_pages['mods/_core/modules/module_uninstall_step_2.php']['parent']    = 'mods/_core/modules/index.php';
 157
 158             $_pages['mods/_core/modules/module_uninstall_step_3.php']['title_var'] = 'module_uninstall';
 159             $_pages['mods/_core/modules/module_uninstall_step_3.php']['parent']    = 'mods/_core/modules/index.php';
 160
 161             $_pages['mods/_core/modules/install_modules.php']['title_var'] = 'install_modules';
 162             $_pages['mods/_core/modules/install_modules.php']['parent']    = 'mods/_core/modules/index.php';
 163             $_pages['mods/_core/modules/install_modules.php']['guide']     = 'admin/?p=modules.php';
 164
 165             $_pages['mods/_core/modules/version_history.php']['title_var'] = 'version_history';
 166             $_pages['mods/_core/modules/version_history.php']['parent']    = 'mods/_core/modules/install_modules.php';
 167
 168             $_pages['mods/_core/modules/module_install_step_1.php']['title_var'] = 'details';
 169             $_pages['mods/_core/modules/module_install_step_1.php']['parent']    = 'mods/_core/modules/install_modules.php';
 170
 171             $_pages['mods/_core/modules/module_install_step_2.php']['title_var'] = 'details';
 172             $_pages['mods/_core/modules/module_install_step_2.php']['parent']    = 'mods/_core/modules/install_modules.php';
 173
 174             $_pages['mods/_core/modules/module_install_step_3.php']['title_var'] = 'details';
 175             $_pages['mods/_core/modules/module_install_step_3.php']['parent']    = 'mods/_core/modules/install_modules.php';
 176
 177             $_pages['mods/_core/modules/confirm.php']['title_var'] = 'confirm';
 178             $_pages['mods/_core/modules/confirm.php']['parent']    = 'mods/_core/modules/add_new.php';
 179
 180             $_pages['admin/cron_config.php']['title_var'] = 'cron_config';
 181             $_pages['admin/cron_config.php']['parent']    = 'admin/config_edit.php';
 182             $_pages['admin/cron_config.php']['guide']     = 'admin/?p=cron_setup.php';
 183             $_pages['admin/config_edit.php']['children']  = array_merge((array) $_pages['admin/config_edit.php']['children'], array('admin/cron_config.php'));
 184 /*
 185             $_pages['admin/auto_enroll.php']['title_var'] = 'auto_enroll';
 186             $_pages['admin/auto_enroll.php']['parent']    = 'admin/config_edit.php';
 187             $_pages['admin/auto_enroll.php']['guide']     = 'admin/?p=auto_enroll.php';
 188             $_pages['admin/auto_enroll.php']['children']  = array_merge(array('admin/auto_enroll_edit.php'));
 189             $_pages['admin/config_edit.php']['children']  = array_merge((array) $_pages['admin/config_edit.php']['children'], array('admin/auto_enroll.php'));
 190
 191             $_pages['admin/auto_enroll_edit.php']['title_var'] = 'auto_enroll_edit';
 192             $_pages['admin/auto_enroll_edit.php']['parent']    = 'admin/auto_enroll.php';
 193             $_pages['admin/auto_enroll_edit.php']['guide']     = 'admin/?p=auto_enroll.php';
 194
 195             $_pages['admin/auto_enroll_delete.php']['title_var'] = 'auto_enroll_delete';
 196             $_pages['admin/auto_enroll_delete.php']['parent']    = 'admin/auto_enroll.php';
 197 */
 198         }
 199     }
 200
 201 /* global pages */
 202 $_pages['about.php']['title_var']  = 'about_atutor';
 203
 204 $_pages['404.php']['title_var']  = '404';
 205
 206 $_pages['help/index.php']['title_var']  = 'help';
 207 $_pages['help/index.php']['children'] = array_merge(array('help/accessibility.php', 'help/contact_support.php'), isset($_pages['help/index.php']['children']) ? $_pages['help/index.php']['children'] : array());
 208
 209 $_pages['help/accessibility.php']['title_var']  = 'accessibility';
 210 $_pages['help/accessibility.php']['parent'] = 'help/index.php';
 211
 212 $_pages['help/contact_support.php']['title_var']  = 'contact_support';
 213 $_pages['help/contact_support.php']['parent'] = 'help/index.php';
 214
 215
 216 $_pages['contact_instructor.php']['title_var']  = 'contact_instructor';
 217
 218 /* public pages */
 219
 220 $_pages['registration.php']['title_var'] = 'register';
 221 $_pages['registration.php']['parent']    = AT_NAV_PUBLIC;
 222 $_pages['registration.php']['children']  = isset($_pages['browse.php']['children']) ? $_pages['browse.php']['children'] : array();
 223 $_pages['registration.php']['guide']     = 'general/?p=register.php';
 224
 225 $_pages['browse.php']['title_var'] = 'browse_courses';
 226 $_pages['browse.php']['parent']    = AT_NAV_PUBLIC;
 227 $_pages['browse.php']['children']  = isset($_pages['browse.php']['children']) ? $_pages['browse.php']['children'] : array();
 228 $_pages['browse.php']['guide']     = 'general/?p=browse_courses.php';
 229
 230 $_pages['login.php']['title_var'] = 'login';
 231 $_pages['login.php']['parent']    = AT_NAV_PUBLIC;
 232 $_pages['login.php']['children']  = array_merge(array('password_reminder.php'), isset($_pages['login.php']['children']) ? $_pages['login.php']['children'] : array());
 233 $_pages['login.php']['guide']     = 'general/?p=login.php';
 234
 235 $_pages['confirm.php']['title_var'] = 'confirm';
 236 $_pages['confirm.php']['parent']    = AT_NAV_PUBLIC;
 237
 238 $_pages['password_reminder.php']['title_var'] = 'password_reminder';
 239 $_pages['password_reminder.php']['parent']    = 'login.php';
 240 $_pages['password_reminder.php']['guide']     = 'general/?p=password_reminder.php';
 241
 242 $_pages['logout.php']['title_var'] = 'logout';
 243 $_pages['logout.php']['parent']    = AT_NAV_PUBLIC;
 244
 245 /* my start page pages */
 246 $_pages['users/index.php']['title_var'] = 'my_courses';
 247 $_pages['users/index.php']['parent']    = AT_NAV_START;
 248 $_pages['users/index.php']['guide']     = 'general/?p=my_courses.php';
 249 if (isset($_SESSION['member_id']) && $_SESSION['member_id'] && (!isset($_SESSION['course_id']) || !$_SESSION['course_id'])) {
 250         //$_pages['users/index.php']['children']  = array_merge(array('mods/_core/courses/users/create_course.php'), isset($_pages['users/index.php']['children']) ? $_pages['users/index.php']['children'] : array());
 251 }
 252         $_pages['users/browse.php']['title_var'] = 'browse_courses';
 253         //$_pages['users/browse.php']['parent']    = 'users/index.php';
 254         $_pages['users/browse.php']['parent']    = AT_NAV_START;
 255         $_pages['users/browse.php']['guide']     = 'general/?p=browse_courses.php';
 256
 257
 258 if (isset($_SESSION['member_id']) && get_instructor_status() === TRUE)
 259 {
 260         $_pages['mods/_core/courses/users/create_course.php']['title_var'] = 'create_course';
 261 $_pages['mods/_core/courses/users/create_course.php']['parent']    = 'users/index.php';
 262 $_pages['mods/_core/courses/users/create_course.php']['guide']    = 'instructor/?p=creating_courses.php';
 263 $_pages['users/index.php']['children']  = array_merge(array('mods/_core/courses/users/create_course.php'), isset($_pages['users/index.php']['children']) ? $_pages['users/index.php']['children'] : array());
 264
 265 }
 266 else if (isset($_SESSION['member_id']) && ALLOW_INSTRUCTOR_REQUESTS)
 267 {
 268
 269           $_pages['mods/_core/courses/users/create_course.php']['title_var'] = 'request_instructor_priv';
 270 $_pages['mods/_core/courses/users/create_course.php']['parent']    = 'users/index.php';
 271 $_pages['mods/_core/courses/users/create_course.php']['guide']    = 'instructor/?p=creating_courses.php';
 272 $_pages['users/index.php']['children']  = array_merge(array('mods/_core/courses/users/create_course.php'), isset($_pages['users/index.php']['children']) ? $_pages['users/index.php']['children'] : array());
 273
 274 }
 275
 276 $_pages['users/private_enroll.php']['title_var'] = 'enroll';
 277 $_pages['users/private_enroll.php']['parent']    = 'users/index.php';
 278
 279 $_pages['users/remove_course.php']['title_var'] = 'unenroll';
 280 $_pages['users/remove_course.php']['parent']    = 'users/index.php';
 281
 282 $_pages['mods/_standard/profile_pictures/profile_picture.php']['title_var']    = 'picture';
 283
 284 $_pages['users/profile.php']['title_var']    = 'profile';
 285 $_pages['users/profile.php']['parent']   = AT_NAV_START;
 286 $_pages['users/profile.php']['guide']     = 'general/?p=profile.php';
 287 //$_pages['users/profile.php']['children']  = array_merge(array('users/password_change.php', 'users/email_change.php','mods/_standard/profile_pictures/profile_picture.php'), (array) $_pages['users/profile.php']['children']);
 288 $_pages['users/profile.php']['children']  = array_merge(array('users/password_change.php', 'users/email_change.php','mods/_standard/profile_pictures/profile_picture.php'), (array) $_pages['users/profile.php']['children']);
 289
 290 $_pages['users/password_change.php']['title_var'] = 'change_password';
 291 $_pages['users/password_change.php']['parent']    = 'users/profile.php';
 292 //$_pages['users/password_change.php']['guide']    = 'instructor/?p=creating_courses.php';
 293
 294 $_pages['users/email_change.php']['title_var'] = 'change_email';
 295 $_pages['users/email_change.php']['parent']    = 'users/profile.php';
 296
 297 $_pages['users/preferences.php']['title_var']  = 'preferences';
 298 $_pages['users/preferences.php']['parent'] = AT_NAV_START;
 299 $_pages['users/preferences.php']['guide']  = 'general/?p=preferences.php';
 300
 301 $_pages['users/pref_wizard/index.php']['title_var']  = 'preferences';
 302 $_pages['users/pref_wizard/index.php']['parent'] = AT_NAV_START;
 303
 304
 305
 306 /* course pages */
 307 $_pages['index.php']['title_var']  = 'course_home';
 308 $_pages['index.php']['parent'] = AT_NAV_COURSE;
 309
 310 $_pages['enroll.php']['title_var']  = 'enroll';
 311 $_pages['enroll.php']['parent'] = AT_NAV_COURSE;
 312
 313 /* instructor pages: */
 314 $_pages['tools/index.php']['title_var'] = 'manage';
 315 $_pages['tools/index.php']['parent']    = AT_NAV_COURSE;
 316
 317 $_pages['inbox/index.php']['title_var'] = 'inbox';
 318 $_pages['inbox/index.php']['children']  = array_merge(array('inbox/sent_messages.php', 'inbox/send_message.php', 'inbox/export.php'), isset($_pages['inbox/index.php']['children']) ? $_pages['inbox/index.php']['children'] : array());
 319
 320 $_pages['inbox/sent_messages.php']['title_var'] = 'sent_messages';
 321 $_pages['inbox/sent_messages.php']['parent']    = 'inbox/index.php';
 322
 323 $_pages['inbox/send_message.php']['title_var'] = 'send_message';
 324 $_pages['inbox/send_message.php']['parent']    = 'inbox/index.php';
 325
 326 $_pages['inbox/export.php']['title_var'] = 'export';
 327 $_pages['inbox/export.php']['parent']    = 'inbox/index.php';
 328
 329 $_pages['profile.php']['title_var'] = 'profile';
 330 $_pages['profile.php']['parent']    = 'index.php';
 331
 332
 333 $current_page = substr($_SERVER['PHP_SELF'], strlen($_base_path));
 334
 335 function get_num_new_messages() {
 336     global $db;
 337     static $num_messages;
 338
 339     if (isset($num_messages)) {
 340         return $num_messages;
 341     }
 342     $sql    = "SELECT COUNT(*) AS cnt FROM ".TABLE_PREFIX."messages WHERE to_member_id=$_SESSION[member_id] AND new=1";
 343     $result = mysql_query($sql, $db);
 344     $row    = mysql_fetch_assoc($result);
 345     $num_messages = $row['cnt'];
 346
 347     return $num_messages;
 348 }
 349
 350 //TODO****************BOLOGNA*******************REMOVE ME**********************/
 351 function get_main_navigation($current_page) {
 352     global $_pages, $_base_path, $_tool;
 353
 354     $parent_page = $_pages[$current_page]['parent'];
 355     $_top_level_pages = array();
 356
 357     $tool_file= $table = '';
 358
 359     if (isset($parent_page) && defined($parent_page)) {
 360         foreach($_pages[$parent_page] as $page) {
 361             if (isset($_pages[$page])) {
 362                 if (isset($_pages[$page]['title'])) {
 363                     $_page_title = $_pages[$page]['title'];
 364                 } else {
 365                     $_page_title = _AT($_pages[$page]['title_var']);
 366                 }
 367
 368                 if(isset($_tool[$_pages[$page]['title_var']])){                 //viene prelevato il file nel caso in cui lo strumento sia valodo per essere inserito nella toolbar in fase di editing dei conenuti del corso
 369                     $tool_file = $_tool[$_pages[$page]['title_var']]['file'];
 370                     $table = $_tool[$_pages[$page]['title_var']]['table'];
 371                 } else {
 372                                         $tool_file = '';
 373                                         $table = '';
 374                                 }
 375
 376                 $_top_level_pages[] = array('url' => $_base_path . url_rewrite($page), 'title' => $_page_title, 'img' => $_base_path.$_pages[$page]['img'], 'tool_file' => $tool_file, 'table' => $table);
 377             }
 378         }
 379     } else if (isset($parent_page)) {
 380             return get_main_navigation($parent_page);
 381         }
 382
 383     return $_top_level_pages;
 384 }
 385
 386 function get_current_main_page($current_page) {
 387     global $_pages, $_base_path;
 388     $parent_page = $_pages[$current_page]['parent'];
 389
 390     if (isset($parent_page) && defined($parent_page)) {
 391         return $_base_path . url_rewrite($current_page);
 392     } else if (isset($parent_page)) {
 393             return get_current_main_page($parent_page);
 394         }
 395 }
 396
 397 function get_sub_navigation($current_page) {
 398     global $_pages, $_base_path;
 399
 400     if (isset($current_page) && defined($current_page)) {
 401     // reached the top
 402         return array();
 403     } else if (isset($_pages[$current_page]['children'])) {
 404             if (isset($_pages[$current_page]['title'])) {
 405                 $_page_title = $_pages[$current_page]['title'];
 406             } else {
 407                 $_page_title = _AT($_pages[$current_page]['title_var']);
 408             }
 409
 410             $_sub_level_pages[] = array('url' => $_base_path . $current_page, 'title' => $_page_title);
 411             foreach ($_pages[$current_page]['children'] as $child) {
 412
 413                 if (isset($_pages[$child]['title'])) {
 414                     $_page_title = $_pages[$child]['title'];
 415                 } else {
 416                     $_page_title = _AT($_pages[$child]['title_var']);
 417                 }
 418
 419                 $_sub_level_pages[] = array('url' => $_base_path . $child, 'title' => $_page_title, 'has_children' => isset($_pages[$child]['children']));
 420             }
 421         } else if (isset($_pages[$current_page]['parent'])) {
 422             // no children
 423
 424                 $parent_page = $_pages[$current_page]['parent'];
 425                 return get_sub_navigation($parent_page);
 426             }
 427
 428     return $_sub_level_pages;
 429 }
 430
 431 function get_current_sub_navigation_page($current_page) {
 432     global $_pages, $_base_path;
 433     $parent_page = $_pages[$current_page]['parent'];
 434
 435     if (isset($parent_page) && defined($parent_page)) {
 436         return $_base_path . $current_page;
 437     } else {
 438         return $_base_path . $current_page;
 439     }
 440 }
 441
 442 function get_path($current_page) {
 443     global $_pages, $_base_path;
 444
 445     $parent_page = $_pages[$current_page]['parent'];
 446
 447     if (isset($_pages[$current_page]['title'])) {
 448         $_page_title = $_pages[$current_page]['title'];
 449     } else {
 450         $_page_title = _AT($_pages[$current_page]['title_var']);
 451     }
 452
 453     if (isset($parent_page) && defined($parent_page)) {
 454         $path[] = array('url' => $_base_path . url_rewrite($current_page), 'title' => $_page_title);
 455         return $path;
 456     } else if (isset($parent_page)) {
 457             $path[] = array('url' => $_base_path . url_rewrite($current_page), 'title' => $_page_title);
 458             $path = array_merge((array) $path, get_path($parent_page));
 459         } else {
 460             $path[] = array('url' => $_base_path . url_rewrite($current_page), 'title' => $_page_title);
 461         }
 462
 463     return $path;
 464 }
 465
 466 //TODO****************BOLOGNA*********************REMOVE ME*****************/
 467 function get_home_navigation($home_array='') {
 468     global $_pages, $_list, $_base_path, $_tool;
 469
 470     // set default home_array to course index navigation array
 471     if (!is_array($home_array)) $home_array = $_pages[AT_NAV_HOME];
 472
 473     $home_links = array();
 474     foreach ($home_array as $child) {                                           //esecuzione del ciclo fin quando non saranno terminati i moduli presenti nella home-page del corso
 475         if (isset($_pages[$child])) {
 476         // initialization
 477             $title = $icon = $sub_file = $image = $text = $tool_file = $table ='';
 478
 479             if (isset($_pages[$child]['title'])) {                              //viene prelevato il titolo che dovr� poi essere utilizzato nella visualizzazione
 480                 $title = $_pages[$child]['title'];
 481             } else {
 482                 $title = _AT($_pages[$child]['title_var']);
 483             }
 484             if(isset($_pages[$child]['icon'])) {                                //si controlla se è presente l'icona inserita nel modulo di rifrimento. si ricorda che l'icona � inserita solo per i moduli che prevedono possibili sottocontenuti.
 485                 $icon = $_base_path.$_pages[$child]['icon'];                    //in caso positivo viene prelevata e inserita in una variabile di appoggio che poi sar� a sua volta inserita all'interno dell'array finale home_links[]
 486             }
 487             if(isset($_pages[$child]['text'])) {                         //nel caso in cui non sia presente un' icona associata si controlla se � stato settata il testo (per moduli privi di sottocontenuti).
 488                 $text = $_pages[$child]['text'];                                //il testo viene inserito in una variabile d'appoggio e successivamente nell'array.
 489             }
 490
 491             if (isset($_list[$_pages[$child]['title_var']]))                    //viene prelevato il path del file che dovr� poi essere richiamato nella visualizzazione dei sottocontenuti. solo i moduli che prevedono sottocontenuti avranno un file di riferimento.
 492                 $sub_file = $_list[$_pages[$child]['title_var']]['file'];
 493
 494              if(isset($_tool[$_pages[$child]['title_var']])){                    //viene prelevato il file nel caso in cui lo strumento sia valido per essere inserito nella toolbar in fase di editing dei conenuti del corso
 495                 $tool_file = $_tool[$_pages[$child]['title_var']]['file'];
 496                 $table = $_tool[$_pages[$child]['title_var']]['table'];
 497              }
 498
 499             $real_image_in_theme = AT_INCLUDE_PATH.'../themes/'.$_SESSION['prefs']['PREF_THEME'].'/'.$_pages[$child]['img'];
 500             $image_in_theme = $_base_path.'themes/'.$_SESSION['prefs']['PREF_THEME'].'/'.$_pages[$child]['img'];
 501
 502             // look for images in theme folder. If not exists, use images relative to ATutor root folder
 503             if (file_exists($real_image_in_theme))
 504                 $image = $image_in_theme;
 505             else
 506                 $image = $_base_path.$_pages[$child]['img'];
 507
 508             // 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.
 509             $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, 'table' => $table);
 510         }
 511     }
 512     return $home_links;
 513 }
 514
 515 ?>