function scorm_seq_choice_activity_traversal($activity, $userid, $seq, $direction) { if ($direction == 'forward') { $act = scorm_seq_rules_check($activity, 'stopforwardtraversal'); if ($act != null) { $seq->reachable = false; $seq->exception = 'SB.2.4-1'; return $seq; } $seq->reachable = false; return $seq; } if ($direction == 'backward') { $parentsco = scorm_get_parent($activity); if ($parentsco != null) { if (isset($parentsco->forwardonly) && $parentsco->forwardonly == true) { $seq->reachable = false; $seq->exception = 'SB.2.4-2'; return $seq; } else { $seq->reachable = false; $seq->exception = 'SB.2.4-3'; return $seq; } } } $seq->reachable = true; return $seq; }
function scorm_seq_flow_activity_traversal($activity, $userid, $direction, $childrenflag, $prevdirection, $seq, $userid) { $parent = scorm_get_parent($activity); if (!isset($parent->flow) || $parent->flow == false) { $seq->deliverable = false; $seq->exception = 'SB.2.2-1'; $seq->nextactivity = $activity; return $seq; } $rulecheck = scorm_seq_rules_check($activity, 'skip'); if ($rulecheck != null) { $skip = scorm_evaluate_condition($rulecheck, $activity, $userid); if ($skip) { $seq = scorm_seq_flow_tree_traversal($activity, $direction, false, $prevdirection, $seq, $userid, $skip); $seq = scorm_seq_flow_activity_traversal($seq->nextactivity, $userid, $direction, $childrenflag, $prevdirection, $seq, $userid); } else { if (!empty($seq->identifiedactivity)) { $seq->nextactivity = $activity; } } return $seq; } $ch = scorm_check_activity($activity, $userid); if ($ch) { $seq->deliverable = false; $seq->exception = 'SB.2.2-2'; $seq->nextactivity = $activity; return $seq; } if (!scorm_is_leaf($activity)) { $seq = scorm_seq_flow_tree_traversal($activity, $direction, true, null, $seq, $userid); if ($seq->identifiedactivity == null) { $seq->deliverable = false; $seq->nextactivity = $activity; return $seq; } else { if ($direction == 'backward' && $seq->traversaldir == 'forward') { $seq = scorm_seq_flow_activity_traversal($seq->identifiedactivity, $userid, 'forward', $childrenflag, 'backward', $seq, $userid); } else { $seq = scorm_seq_flow_activity_traversal($seq->identifiedactivity, $userid, $direction, $childrenflag, null, $seq, $userid); } return $seq; } } $seq->deliverable = true; $seq->nextactivity = $activity; $seq->exception = null; return $seq; }
function scorm_seq_post_cond_rules($seq, $userid) { $sco = $seq->currentactivity; if (!$seq->suspended) { if ($action = scorm_seq_rules_check($sco, 'post') != null) { switch ($action) { case 'retry': case 'continue': case 'previous': $seq->sequencing = $action; break; case 'exitparent': case 'exitall': $seq->termination = $action; break; case 'retryall': $seq->termination = 'exitall'; $seq->sequencing = 'retry'; break; } } } return $seq; }