Index: accessrules.php
===================================================================
RCS file: /cvsroot/moodle/moodle/mod/quiz/accessrules.php,v
retrieving revision 1.48
diff -u -r1.48 accessrules.php
--- accessrules.php	11 Aug 2010 20:25:32 -0000	1.48
+++ accessrules.php	12 Aug 2010 16:34:57 -0000
@@ -210,7 +210,10 @@
     public function print_start_attempt_button($canpreview, $buttontext, $unfinished) { 
         global $OUTPUT;
 
-        $url = $this->_quizobj->start_attempt_url();
+        $url=clone($this->_quizobj->start_attempt_url());
+        if ($canpreview) {
+            $url->param('previewasstudent',1);
+        }
         $button = new single_button($url, $buttontext);
         $button->class .= ' quizstartbuttondiv';
 
@@ -223,7 +226,7 @@
 
         $warning = '';
 
-        if ($this->securewindow_required($canpreview)) {
+        if ($this->securewindow_required(false)) { //preview from button always require secure window to do preview as student
             $button->class .= ' quizsecuremoderequired';
 
             $button->add_action(new popup_action('click', $url, 'quizpopup',
Index: attempt.php
===================================================================
RCS file: /cvsroot/moodle/moodle/mod/quiz/attempt.php,v
retrieving revision 1.189
diff -u -r1.189 attempt.php
--- attempt.php	11 Aug 2010 20:15:18 -0000	1.189
+++ attempt.php	12 Aug 2010 16:08:08 -0000
@@ -26,6 +26,7 @@
 /// Get submitted parameters.
     $attemptid = required_param('attempt', PARAM_INT);
     $page = optional_param('page', 0, PARAM_INT);
+    $previewasstudent = optional_param('previewasstudent',0,PARAM_INT);
 
     $url = new moodle_url('/mod/quiz/attempt.php', array('attempt'=>$attemptid));
     if ($page !== 0) {
@@ -103,7 +104,7 @@
     // Print the page header
     $title = get_string('attempt', 'quiz', $attemptobj->get_attempt_number());
     $PAGE->set_heading($attemptobj->get_course()->fullname);
-    if ($accessmanager->securewindow_required($attemptobj->is_preview_user())) {
+    if ($accessmanager->securewindow_required($attemptobj->is_preview_user() && !$previewasstudent)) {
         $accessmanager->setup_secure_page($attemptobj->get_course()->shortname . ': ' .
                 format_string($attemptobj->get_quiz_name()));
     } else if ($accessmanager->safebrowser_required($attemptobj->is_preview_user())) {
Index: attemptlib.php
===================================================================
RCS file: /cvsroot/moodle/moodle/mod/quiz/attemptlib.php,v
retrieving revision 1.67
diff -u -r1.67 attemptlib.php
--- attemptlib.php	11 Aug 2010 17:20:05 -0000	1.67
+++ attemptlib.php	12 Aug 2010 16:37:47 -0000
@@ -64,6 +64,7 @@
     protected $context;
     protected $questionids; // All question ids in order that they appear in the quiz.
     protected $pagequestionids; // array page no => array of questionids on the page in order.
+    protected $previewasstudent;// set to 1 if we are doing preview as student, needed to pass on another pages of this attempt
 
     // Fields set later if that data is needed.
     protected $questions = null;
@@ -88,6 +89,7 @@
             $this->context = get_context_instance(CONTEXT_MODULE, $cm->id);
         }
         $this->determine_layout();
+        $this->previewasstudent = optional_param('previewasstudent',0,PARAM_INT);
     }
 
     /**
@@ -324,15 +326,22 @@
      */
     public function attempt_url($attemptid) {
         global $CFG;
-        return $CFG->wwwroot . '/mod/quiz/attempt.php?attempt=' . $attemptid;
+        $url = $CFG->wwwroot . '/mod/quiz/attempt.php?attempt=' . $attemptid;
+        if ($this->previewasstudent) {
+            $url .= '&previewasstudent=1';
+        }
+        return $url;
     }
 
     /**
      * @return string the URL of this quiz's edit page. Needs to be POSTed to with a cmid parameter.
      */
     public function start_attempt_url() {
-        return new moodle_url('/mod/quiz/startattempt.php',
-                array('cmid' => $this->cm->id, 'sesskey' => sesskey()));
+        $urlparams = array('cmid' => $this->cm->id, 'sesskey' => sesskey());
+        if ($this->previewasstudent) {
+            $urlparams['previewasstudent'] = 1;
+        }
+        return new moodle_url('/mod/quiz/startattempt.php', $urlparams);
     }
 
     /**
@@ -340,7 +349,11 @@
      * @return string the URL of the review of that attempt.
      */
     public function review_url($attemptid) {
-        return new moodle_url('/quiz/review.php', array('attempt' => $attemptid));
+        $url = new moodle_url('/quiz/review.php', array('attempt' => $attemptid));
+        if ($this->previewasstudent) {
+            $url->param('previewasstudent',1);
+        }
+        return $url;
     }
 
     // Bits of content =====================================================================
@@ -734,7 +747,11 @@
      */
     public function summary_url() {
         global $CFG;
-        return $CFG->wwwroot . '/mod/quiz/summary.php?attempt=' . $this->attempt->id;
+        $url = $CFG->wwwroot . '/mod/quiz/summary.php?attempt=' . $this->attempt->id;
+        if ($this->previewasstudent) {
+            $url .= '&previewasstudent=1';
+        }
+        return $url;
     }
 
     /**
@@ -742,7 +759,11 @@
      */
     public function processattempt_url() {
         global $CFG;
-        return $CFG->wwwroot . '/mod/quiz/processattempt.php';
+        $url = $CFG->wwwroot . '/mod/quiz/processattempt.php';
+        if ($this->previewasstudent) {
+            $url .= '?previewasstudent=1';
+        }
+        return $url;
     }
 
     /**
@@ -785,6 +806,9 @@
         global $CFG, $OUTPUT;
         echo $OUTPUT->container_start('controls');
         $url = new moodle_url($this->start_attempt_url(), array('forcenew' => true));
+        if ($this->previewasstudent) {
+            $url->param('previewasstudent',1);
+        }
         echo $OUTPUT->single_button($url, get_string('startagain', 'quiz'));
         echo $OUTPUT->container_end();
     }
@@ -992,6 +1016,11 @@
             }
         }
 
+        //Add previewasstudent if needed
+        if ($this->previewasstudent) {
+            $url .= '&previewasstudent=1';
+        }
+
         // Add a fragment to scroll down ot the question.
         if ($questionid) {
             if ($questionid == reset($this->pagequestionids[$page])) {
Index: review.php
===================================================================
RCS file: /cvsroot/moodle/moodle/mod/quiz/review.php,v
retrieving revision 1.119
diff -u -r1.119 review.php
--- review.php	10 Aug 2010 09:56:50 -0000	1.119
+++ review.php	12 Aug 2010 16:08:08 -0000
@@ -14,6 +14,7 @@
     $attemptid = required_param('attempt', PARAM_INT);
     $page = optional_param('page', 0, PARAM_INT);
     $showall = optional_param('showall', 0, PARAM_BOOL);
+    $previewasstudent = optional_param('previewasstudent',0,PARAM_INT);
 
     $url = new moodle_url('/mod/quiz/review.php', array('attempt'=>$attemptid));
     if ($page !== 0) {
@@ -97,7 +98,7 @@
 
 /// Print the page header
     $headtags = $attemptobj->get_html_head_contributions($page);
-    if ($accessmanager->securewindow_required($attemptobj->is_preview_user())) {
+    if ($accessmanager->securewindow_required($attemptobj->is_preview_user() && !$previewasstudent)) {
         $accessmanager->setup_secure_page($attemptobj->get_course()->shortname.': '.format_string($attemptobj->get_quiz_name()), $headtags);
     } elseif ($accessmanager->safebrowser_required($attemptobj->is_preview_user())) {
         $PAGE->set_title($attemptobj->get_course()->shortname . ': '.format_string($attemptobj->get_quiz_name()));
@@ -247,7 +248,7 @@
 /// Print a link to the next page.
     echo '<div class="submitbtns">';
     if ($lastpage) {
-        $accessmanager->print_finish_review_link($attemptobj->is_preview_user());
+        $accessmanager->print_finish_review_link($attemptobj->is_preview_user() && !$previewasstudent);
     } else {
         echo link_arrow_right(get_string('next'), s($attemptobj->review_url(0, $page + 1)));
     }