docs/mods/_standard/basiclti/ModuleCallbacks.class.php

   1 <?php
   2
   3 /**
   4  * This class contains the callback functions that are called in the core scripts to manipulate content etc.
   5  *
   6  * Note:
   7  * 1. CHANGE the class name and ensure its uniqueness by prefixing with the module name
   8  * 2. DO NOT change the script name. Leave as "ModuleCallbacks.class.php"
   9  * 3. DO NOT change the names of the methods.
  10  * 4. REGISTER the unique class name in module.php
  11  *
  12  * @access      public
  13  */
  14 if (!defined('AT_INCLUDE_PATH')) exit;
  15
  16 class BasicLTICallbacks {
  17         /*
  18          * To append output onto course content page
  19          * @param: None
  20          * @return: a string, plain or html, to be appended to course content page
  21          */
  22         public static function appendContent($cid) {
  23                 if ( !is_int($_SESSION['course_id']) || $_SESSION['course_id'] < 1 ) return;
  24                 $sql = "SELECT * FROM ".TABLE_PREFIX."basiclti_content
  25                         WHERE content_id=".$cid." AND course_id = ".$_SESSION['course_id'];
  26                 global $db;
  27                 $instanceresult = mysql_query($sql, $db);
  28                 if ( $instanceresult == false ) return;
  29                 $basiclti_content_row = mysql_fetch_assoc($instanceresult);
  30                 if ( $basiclti_content_row === false ) return;
  31                 $toolid = $basiclti_content_row['toolid'];
  32                 $sql = "SELECT * FROM ".TABLE_PREFIX."basiclti_tools
  33                                 WHERE toolid='".$toolid."'";
  34                 $contentresult = mysql_query($sql, $db);
  35                 $basiclti_tool_row = mysql_fetch_assoc($contentresult);
  36                 if ( ! $basiclti_tool_row ) {
  37                         return _AT('blti_missing_tool').$toolid;
  38                 }
  39                 // Figure height
  40                 $height = 1200;
  41                 if ( isset($basiclti_tool_row['preferheight']) && $basiclti_tool_row['preferheight'] > 0 ) {
  42                         $height = $basiclti_tool_row['preferheight'];
  43                 }
  44                 if ( $basiclti_tool_row['allowpreferheight'] == 2 && isset($basiclti_content_row['preferheight']) && $basiclti_content_row['preferheight'] > 0 ) {
  45                         $height = $basiclti_content_row['preferheight'];
  46                 }
  47
  48                 $myurl = AT_BASE_HREF.'mods/_standard/basiclti/launch/launch.php?cid='.$cid;
  49                 if ( $basiclti_tool_row['launchinpopup'] == 1 ||
  50                    ( $basiclti_tool_row['launchinpopup'] == 2 && $basiclti_content_row['launchinpopup'] == 1 ) ) {
  51                         // return '<script type="text/javascript">window.open("'.$myurl.'");</script>'."\n";
  52                                 /*****************
  53                                 *       The ID in the next bit is temporary until we can add the box style to ATutor and
  54                                 *       change the ID value to content-tool. In the meantime this will fail validation if tools and
  55                                 *   tests or forums are also present for the content page
  56                                 **********************/
  57                                 return '<div class="input-form" id="content-test"><ol><strong>'._AT('proxy').'</strong><ul class="tools"><li><a href="" onclick="ATutor.poptastic(\''.$myurl.'\'); return false;"'.'>'.$basiclti_tool_row['title'].'</a> ('._AT('new_window').')</li></ul></ol></div>'."\n";
  58                 } else {
  59                         return '<iframe src="'.$myurl.'" height="'.$height.'" width="100%"></iframe>'."\n";
  60                 }
  61         }
  62
  63 }
  64
  65 ?>