--- loncom/interface/loncommon.pm	2014/04/25 17:56:43	1.1187
+++ loncom/interface/loncommon.pm	2015/02/25 19:22:24	1.1206
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1187 2014/04/25 17:56:43 bisitz Exp $
+# $Id: loncommon.pm,v 1.1206 2015/02/25 19:22:24 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1757,6 +1757,241 @@ RESIZE
 
 }
 
+sub colorfuleditor_js {
+    return <<"COLORFULEDIT"
+<script type="text/javascript">
+// <![CDATA[>
+    function fold_box(curDepth, lastresource){
+
+    // we need a list because there can be several blocks you need to fold in one tag
+        var block = document.getElementsByName('foldblock_'+curDepth);
+    // but there is only one folding button per tag
+        var foldbutton = document.getElementById('folding_btn_'+curDepth);
+
+        if(block.item(0).style.display == 'none'){
+
+            foldbutton.value = '@{[&mt("Hide")]}';
+            for (i = 0; i < block.length; i++){
+                block.item(i).style.display = '';
+            }
+        }else{
+
+            foldbutton.value = '@{[&mt("Show")]}';
+            for (i = 0; i < block.length; i++){
+                // block.item(i).style.visibility = 'collapse';
+                block.item(i).style.display = 'none';
+            }
+        };
+        saveState(lastresource);
+    }
+
+    function saveState (lastresource) {
+
+        var tag_list = getTagList();
+        if(tag_list != null){
+            var timestamp = new Date().getTime();
+            var key = lastresource;
+
+            // the value pattern is: 'time;key1,value1;key2,value2; ... '
+            // starting with timestamp
+            var value = timestamp+';';
+
+            // building the list of key-value pairs
+            for(var i = 0; i < tag_list.length; i++){
+                value += tag_list[i]+',';
+                value += document.getElementsByName(tag_list[i])[0].style.display+';';
+            }
+
+            // only iterate whole storage if nothing to override
+            if(localStorage.getItem(key) == null){        
+
+                // prevent storage from growing large
+                if(localStorage.length > 50){
+                    var regex_getTimestamp = /^(?:\d)+;/;
+                    var oldest_timestamp = regex_getTimestamp.exec(localStorage.key(0));
+                    var oldest_key;
+                    
+                    for(var i = 1; i < localStorage.length; i++){
+                        if (regex_getTimestamp.exec(localStorage.key(i)) < oldest_timestamp) {
+                            oldest_key = localStorage.key(i);
+                            oldest_timestamp = regex_getTimestamp.exec(oldest_key);
+                        }
+                    }
+                    localStorage.removeItem(oldest_key);
+                }
+            }
+            localStorage.setItem(key,value);
+        }
+    }
+
+    // restore folding status of blocks (on page load)
+    function restoreState (lastresource) {
+        if(localStorage.getItem(lastresource) != null){
+            var key = lastresource;
+            var value = localStorage.getItem(key);
+            var regex_delTimestamp = /^\d+;/;
+
+            value.replace(regex_delTimestamp, '');
+
+            var valueArr = value.split(';');
+            var pairs;
+            var elements;
+            for (var i = 0; i < valueArr.length; i++){
+                pairs = valueArr[i].split(',');
+                elements = document.getElementsByName(pairs[0]);
+
+                for (var j = 0; j < elements.length; j++){  
+                    elements[j].style.display = pairs[1];
+                    if (pairs[1] == "none"){
+                        var regex_id = /([_\\d]+)\$/;
+                        regex_id.exec(pairs[0]);
+                        document.getElementById("folding_btn"+RegExp.\$1).value = "Show";
+                    }
+                }
+            }
+        }
+    }
+
+    function getTagList () {
+        
+        var stringToSearch = document.lonhomework.innerHTML;
+
+        var ret = new Array();
+        var regex_findBlock = /(foldblock_.*?)"/g;
+        var tag_list = stringToSearch.match(regex_findBlock);
+
+        if(tag_list != null){
+            for(var i = 0; i < tag_list.length; i++){            
+                ret.push(tag_list[i].replace(/"/, ''));
+            }
+        }
+        return ret;
+    }
+
+    function saveScrollPosition (resource) {
+        var tag_list = getTagList();
+
+        // we dont always want to jump to the first block
+        // 170 is roughly above the "Problem Editing" header. we just want to save if the user scrolled down further than this
+        if(\$(window).scrollTop() > 170){
+            if(tag_list != null){
+                var result;
+                for(var i = 0; i < tag_list.length; i++){
+                    if(isElementInViewport(tag_list[i])){
+                        result += tag_list[i]+';';
+                    }
+                }
+                sessionStorage.setItem('anchor_'+resource, result);
+            }
+        } else {
+            // we dont need to save zero, just delete the item to leave everything tidy
+            sessionStorage.removeItem('anchor_'+resource);
+        }
+    }
+
+    function restoreScrollPosition(resource){
+
+        var elem = sessionStorage.getItem('anchor_'+resource);
+        if(elem != null){
+            var tag_list = elem.split(';');
+            var elem_list;
+
+            for(var i = 0; i < tag_list.length; i++){
+                elem_list = document.getElementsByName(tag_list[i]);
+                
+                if(elem_list.length > 0){
+                    elem = elem_list[0];
+                    break;
+                }
+            }
+            elem.scrollIntoView();
+        }
+    }
+
+    function isElementInViewport(el) {
+
+        // change to last element instead of first
+        var elem = document.getElementsByName(el);
+        var rect = elem[0].getBoundingClientRect();
+
+        return (
+            rect.top >= 0 &&
+            rect.left >= 0 &&
+            rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && /*or $(window).height() */
+            rect.right <= (window.innerWidth || document.documentElement.clientWidth) /*or $(window).width() */
+        );
+    }
+    
+    function autosize(depth){
+        var cmInst = window['cm'+depth];
+        var fitsizeButton = document.getElementById('fitsize'+depth);
+
+        // is fixed size, switching to dynamic
+        if (sessionStorage.getItem("autosized_"+depth) == null) {
+            cmInst.setSize("","auto");
+            fitsizeButton.value = "@{[&mt('Fixed size')]}";
+            sessionStorage.setItem("autosized_"+depth, "yes");
+
+        // is dynamic size, switching to fixed
+        } else {
+            cmInst.setSize("","300px");
+            fitsizeButton.value = "@{[&mt('Dynamic size')]}";
+            sessionStorage.removeItem("autosized_"+depth);
+        }
+    }
+
+
+
+// ]]>
+</script>
+COLORFULEDIT
+}
+
+sub xmleditor_js {
+    return <<XMLEDIT
+<script type="text/javascript" src="/adm/jQuery/addons/jquery-scrolltofixed.js"></script>
+<script type="text/javascript">
+// <![CDATA[>
+
+    function saveScrollPosition (resource) {
+
+        var scrollPos = \$(window).scrollTop();
+        sessionStorage.setItem(resource,scrollPos);
+    }
+
+    function restoreScrollPosition(resource){
+
+        var scrollPos = sessionStorage.getItem(resource);
+        \$(window).scrollTop(scrollPos);
+    }
+
+    // unless internet explorer
+    if (!(window.navigator.appName == "Microsoft Internet Explorer" && (document.documentMode || document.compatMode))){
+
+        \$(document).ready(function() {
+             \$(".LC_edit_actionbar").scrollToFixed(\{zIndex: 100\});
+        });
+    }
+
+    // inserts text at cursor position into codemirror (xml editor only)
+    function insertText(text){
+        cm.focus();
+        var curPos = cm.getCursor();
+        cm.replaceRange(text.replace(/ESCAPEDSCRIPT/g,'script'), {line: curPos.line,ch: curPos.ch});
+    }
+// ]]>
+</script>
+XMLEDIT
+}
+
+sub insert_folding_button {
+    my $curDepth = $Apache::lonxml::curdepth;
+    my $lastresource = $env{'request.ambiguous'};
+
+    return "<input type=\"button\" id=\"folding_btn_$curDepth\" 
+            value=\"".&mt('Hide')."\" onclick=\"fold_box('$curDepth','$lastresource')\">";
+}
+
 =pod
 
 =head1 Excel and CSV file utility routines
@@ -2365,6 +2600,8 @@ Outputs:
 
 =item * $clientinfo
 
+=item * $clientosversion
+
 =back
 
 =back 
@@ -2384,8 +2621,9 @@ sub decode_user_agent {
     my $clientmathml='';
     my $clientunicode='0';
     my $clientmobile=0;
+    my $clientosversion='';
     for (my $i=0;$i<=$#browsertype;$i++) {
-        my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\:/,$browsertype[$i]);
+        my ($bname,$match,$notmatch,$vreg,$minv,$univ)=split(/\%/,$browsertype[$i]);
 	if (($httpbrowser=~/$match/i)  && ($httpbrowser!~/$notmatch/i)) {
 	    $clientbrowser=$bname;
             $httpbrowser=~/$vreg/i;
@@ -2405,7 +2643,12 @@ sub decode_user_agent {
     if ($httpbrowser=~/next/i) { $clientos='next'; }
     if (($httpbrowser=~/mac/i) ||
         ($httpbrowser=~/powerpc/i)) { $clientos='mac'; }
-    if ($httpbrowser=~/win/i) { $clientos='win'; }
+    if ($httpbrowser=~/win/i) {
+        $clientos='win';
+        if ($httpbrowser =~/Windows\s+NT\s+(\d+\.\d+)/i) {
+            $clientosversion = $1;
+        }
+    }
     if ($httpbrowser=~/embed/i) { $clientos='pda'; }
     if ($httpbrowser=~/(Android|iPod|iPad|iPhone|webOS|Blackberry|Windows Phone|Opera m(?:ob|in)|Fennec)/i) {
         $clientmobile=lc($1);
@@ -2416,7 +2659,8 @@ sub decode_user_agent {
         $clientinfo = 'chromeframe-'.$1;
     }
     return ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
-            $clientunicode,$clientos,$clientmobile,$clientinfo);
+            $clientunicode,$clientos,$clientmobile,$clientinfo,
+            $clientosversion);
 }
 
 ###############################################################
@@ -3752,7 +3996,7 @@ sub user_lang {
 =over 4
 
 =item * &get_previous_attempt($symb, $username, $domain, $course,
-    $getattempt, $regexp, $gradesub)
+    $getattempt, $regexp, $gradesub, $usec, $identifier)
 
 Return string with previous attempt on problem. Arguments:
 
@@ -3774,6 +4018,11 @@ Return string with previous attempt on p
 
 =item * $gradesub: routine that processes the string if it matches $regexp
 
+=item * $usec: section of the desired student
+
+=item * $identifier: counter for student (multiple students one problem) or 
+    problem (one student; whole sequence).
+
 =back
 
 The output string is a table containing all desired attempts, if any.
@@ -3781,7 +4030,7 @@ The output string is a table containing
 =cut
 
 sub get_previous_attempt {
-  my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub)=@_;
+  my ($symb,$username,$domain,$course,$getattempt,$regexp,$gradesub,$usec,$identifier)=@_;
   my $prevattempts='';
   no strict 'refs';
   if ($symb) {
@@ -3797,7 +4046,7 @@ sub get_previous_attempt {
       }
       $prevattempts=&start_data_table().&start_data_table_header_row();
       $prevattempts.='<th>'.&mt('History').'</th>';
-      my (%typeparts,%lasthidden);
+      my (%typeparts,%lasthidden,%regraded,%hidestatus);
       my $showsurv=&Apache::lonnet::allowed('vas',$env{'request.course.id'});
       foreach my $key (sort(keys(%lasthash))) {
 	my ($ign,@parts) = split(/\./,$key);
@@ -3814,6 +4063,18 @@ sub get_previous_attempt {
                       $lasthidden{$ign.'.'.$id} = 1;
                   }
               }
+              if ($identifier ne '') {
+                  my $id = join(',',@parts);
+                  if (&Apache::lonnet::EXT("resource.$id.problemstatus",$symb,
+                                               $domain,$username,$usec,undef,$course) =~ /^no/) {
+                      $hidestatus{$ign.'.'.$id} = 1;
+                  }
+              }
+          } elsif ($data eq 'regrader') {
+              if (($identifier ne '') && (@parts)) {
+                  my $id = join(',',@parts);
+                  $regraded{$ign.'.'.$id} = 1;
+              }
           } 
 	} else {
 	  if ($#parts == 0) {
@@ -3825,17 +4086,60 @@ sub get_previous_attempt {
       }
       $prevattempts.=&end_data_table_header_row();
       if ($getattempt eq '') {
+        my (%solved,%resets,%probstatus);
+        if (($identifier ne '') && (keys(%regraded) > 0)) {
+            for ($version=1;$version<=$returnhash{'version'};$version++) {
+                foreach my $id (keys(%regraded)) {
+                    if (($returnhash{$version.':'.$id.'.regrader'}) &&
+                        ($returnhash{$version.':'.$id.'.tries'} eq '') &&
+                        ($returnhash{$version.':'.$id.'.award'} eq '')) {
+                        push(@{$resets{$id}},$version);
+                    }
+                }
+            }
+        }
 	for ($version=1;$version<=$returnhash{'version'};$version++) {
-            my @hidden;
+            my (@hidden,@unsolved);
             if (%typeparts) {
                 foreach my $id (keys(%typeparts)) {
-                    if (($returnhash{$version.':'.$id.'.type'} eq 'anonsurvey') || ($returnhash{$version.':'.$id.'.type'} eq 'anonsurveycred')) {
+                    if (($returnhash{$version.':'.$id.'.type'} eq 'anonsurvey') || 
+                        ($returnhash{$version.':'.$id.'.type'} eq 'anonsurveycred')) {
                         push(@hidden,$id);
+                    } elsif ($identifier ne '') {
+                        unless (($returnhash{$version.':'.$id.'.type'} eq 'survey') ||
+                                ($returnhash{$version.':'.$id.'.type'} eq 'surveycred') ||
+                                ($hidestatus{$id})) {
+                            next if ((ref($resets{$id}) eq 'ARRAY') && grep(/^\Q$version\E$/,@{$resets{$id}}));
+                            if ($returnhash{$version.':'.$id.'.solved'} eq 'correct_by_student') {
+                                push(@{$solved{$id}},$version);
+                            } elsif (($returnhash{$version.':'.$id.'.solved'} ne '') &&
+                                     (ref($solved{$id}) eq 'ARRAY')) {
+                                my $skip;
+                                if (ref($resets{$id}) eq 'ARRAY') {
+                                    foreach my $reset (@{$resets{$id}}) {
+                                        if ($reset > $solved{$id}[-1]) {
+                                            $skip=1;
+                                            last;
+                                        }
+                                    }
+                                }
+                                unless ($skip) {
+                                    my ($ign,$partslist) = split(/\./,$id,2);
+                                    push(@unsolved,$partslist);
+                                }
+                            }
+                        }
                     }
                 }
             }
             $prevattempts.=&start_data_table_row().
-                           '<td>'.&mt('Transaction [_1]',$version).'</td>';
+                           '<td>'.&mt('Transaction [_1]',$version);
+            if (@unsolved) {
+                $prevattempts .= '<span class="LC_nobreak"><label>'.
+                                 '<input type="checkbox" name="HIDE'.$identifier.'" value="'.$version.':'.join('_',@unsolved).'" />'.
+                                 &mt('Hide').'</label></span>';
+            }
+            $prevattempts .= '</td>';
             if (@hidden) {
                 foreach my $key (sort(keys(%lasthash))) {
                     next if ($key =~ /\.foilorder$/);
@@ -4322,23 +4626,20 @@ sub findallcourses {
 ###############################################
 
 sub blockcheck {
-    my ($setters,$activity,$uname,$udom,$url) = @_;
+    my ($setters,$activity,$uname,$udom,$url,$is_course) = @_;
 
-    if (!defined($udom)) {
+    if (defined($udom) && defined($uname)) {
+        # If uname and udom are for a course, check for blocks in the course.
+        if (($is_course) || (&Apache::lonnet::is_course($udom,$uname))) {
+            my ($startblock,$endblock,$triggerblock) =
+                &get_blocks($setters,$activity,$udom,$uname,$url);
+            return ($startblock,$endblock,$triggerblock);
+        }
+    } else {
         $udom = $env{'user.domain'};
-    }
-    if (!defined($uname)) {
         $uname = $env{'user.name'};
     }
 
-    # If uname and udom are for a course, check for blocks in the course.
-
-    if (&Apache::lonnet::is_course($udom,$uname)) {
-        my ($startblock,$endblock,$triggerblock) = 
-            &get_blocks($setters,$activity,$udom,$uname,$url);
-        return ($startblock,$endblock,$triggerblock);
-    }
-
     my $startblock = 0;
     my $endblock = 0;
     my $triggerblock = '';
@@ -4348,7 +4649,8 @@ sub blockcheck {
     # boards, chat or groups, check for blocking in current course only.
 
     if (($activity eq 'boards' || $activity eq 'chat' ||
-         $activity eq 'groups') && ($env{'request.course.id'})) {
+         $activity eq 'groups' || $activity eq 'printout') &&
+        ($env{'request.course.id'})) {
         foreach my $key (keys(%live_courses)) {
             if ($key ne $env{'request.course.id'}) {
                 delete($live_courses{$key});
@@ -4612,12 +4914,12 @@ sub parse_block_record {
 }
 
 sub blocking_status {
-    my ($activity,$uname,$udom,$url) = @_;
+    my ($activity,$uname,$udom,$url,$is_course) = @_;
     my %setters;
 
 # check for active blocking
     my ($startblock,$endblock,$triggerblock) = 
-        &blockcheck(\%setters,$activity,$uname,$udom,$url);
+        &blockcheck(\%setters,$activity,$uname,$udom,$url,$is_course);
     my $blocked = 0;
     if ($startblock && $endblock) {
         $blocked = 1;
@@ -4672,13 +4974,13 @@ END_BLOCK
 ###############################################
 
 sub check_ip_acc {
-    my ($acc)=@_;
+    my ($acc,$clientip)=@_;
     &Apache::lonxml::debug("acc is $acc");
     if (!defined($acc) || $acc =~ /^\s*$/ || $acc =~/^\s*no\s*$/i) {
         return 1;
     }
     my $allowed=0;
-    my $ip=$env{'request.host'} || $ENV{'REMOTE_ADDR'};
+    my $ip=$env{'request.host'} || $ENV{'REMOTE_ADDR'} || $clientip;
 
     my $name;
     foreach my $pattern (split(',',$acc)) {
@@ -6339,6 +6641,10 @@ span.LC_cusr_subheading {
   font-size: 85%;
 }
 
+span.LC_math-error {
+  border: solid 1px red; min-width: 1px;
+}
+
 div.LC_docs_entry_move {
   border: 1px solid #BBBBBB;
   background: #DDDDDD;
@@ -6488,6 +6794,7 @@ div.LC_edit_problem_footer div,
 div.LC_edit_problem_editxml_header,
 div.LC_edit_problem_editxml_header div {
   margin-top: 5px;
+  z-index: 100;
 }
 
 div.LC_edit_problem_header_title {
@@ -6505,7 +6812,12 @@ table.LC_edit_problem_header_title {
 
 div.LC_edit_problem_discards {
   float: left;
-  padding-bottom: 5px;
+}
+
+div.LC_edit_actionbar {
+    margin: -5px 0px 0px 0px !important;
+    background-color: $sidebg;
+    height: 31px;
 }
 
 div.LC_edit_problem_saves {
@@ -6526,6 +6838,10 @@ div.LC_edit_problem_saves {
     margin-left: 40px;
 }
 
+#LC_edit_problem_codemirror div{
+    margin-left: 0px;
+}
+
 img.stift {
   border-width: 0;
   vertical-align: middle;
@@ -6640,7 +6956,6 @@ fieldset > legend {
 ol.LC_primary_menu {
   margin: 0;
   padding: 0;
-  background-color: $pgbg_or_bgcolor;
 }
 
 ol#LC_PathBreadcrumbs {
@@ -6652,23 +6967,48 @@ ol.LC_primary_menu li {
   vertical-align: middle;
   text-align: left;
   list-style: none;
+  position: relative;
   float: left;
+  z-index: 100; /* will be displayed above codemirror and underneath the help-layer */
+  line-height: 1.5em;
 }
 
-ol.LC_primary_menu li a {
+ol.LC_primary_menu li a,
+ol.LC_primary_menu li p {
   display: block;
   margin: 0;
   padding: 0 5px 0 10px;
   text-decoration: none;
 }
 
-ol.LC_primary_menu li ul {
+ol.LC_primary_menu li p span.LC_primary_menu_innertitle {
+  display: inline-block;
+  width: 95%;
+  text-align: left;
+}
+
+ol.LC_primary_menu li p span.LC_primary_menu_innerarrow {
+  display: inline-block;	
+  width: 5%;
+  float: right;
+  text-align: right;
+  font-size: 70%;
+}
+
+ol.LC_primary_menu ul {
   display: none;
-  width: 10em;
+  width: 15em;
   background-color: $data_table_light;
+  position: absolute;
+  top: 100%;
+}
+
+ol.LC_primary_menu ul ul {
+  left: 100%;
+  top: 0;
 }
 
-ol.LC_primary_menu li:hover ul, ol.LC_primary_menu li.hover ul {
+ol.LC_primary_menu li:hover > ul, ol.LC_primary_menu li.hover > ul {
   display: block;
   position: absolute;
   margin: 0;
@@ -6677,15 +7017,21 @@ ol.LC_primary_menu li:hover ul, ol.LC_pr
 }
 
 ol.LC_primary_menu li:hover li, ol.LC_primary_menu li.hover li {
+/* First Submenu -> size should be smaller than the menu title of the whole menu */
   font-size: 90%;
   vertical-align: top;
   float: none;
   border-left: 1px solid black;
   border-right: 1px solid black;
+/* A dark bottom border to visualize different menu options; 
+overwritten in the create_submenu routine for the last border-bottom of the menu */
+  border-bottom: 1px solid $data_table_dark; 
 }
 
-ol.LC_primary_menu li:hover li a, ol.LC_primary_menu li.hover li a {
-  background-color:$data_table_light;
+ol.LC_primary_menu li li p:hover {
+  color:$button_hover;
+  text-decoration:none;
+  background-color:$data_table_dark;
 }
 
 ol.LC_primary_menu li li a:hover {
@@ -6693,6 +7039,11 @@ ol.LC_primary_menu li li a:hover {
    background-color:$data_table_dark;
 }
 
+/* Font-size equal to the size of the predecessors*/
+ol.LC_primary_menu li:hover li li {
+  font-size: 100%;
+}
+
 ol.LC_primary_menu li img {
   vertical-align: bottom;
   height: 1.1em;
@@ -7304,7 +7655,10 @@ sub headtag {
 	'<head>'.
 	&font_settings($args);
 
-    my $inhibitprint = &print_suppression();
+    my $inhibitprint;
+    if ($args->{'print_suppress'}) {
+        $inhibitprint = &print_suppression();
+    }
 
     if (!$args->{'frameset'}) {
 	$result .= &Apache::lonhtmlcommon::htmlareaheaders();
@@ -7430,7 +7784,7 @@ sub print_suppression {
         }
         my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
         my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
-        my $blocked = &blocking_status('printout',$cnum,$cdom);
+        my $blocked = &blocking_status('printout',$cnum,$cdom,undef,1);
         if ($blocked) {
             my $checkrole = "cm./$cdom/$cnum";
             if ($env{'request.course.sec'} ne '') {
@@ -7663,10 +8017,12 @@ function set_wishlistlink(title, path) {
         title = title.replace(/^LON-CAPA /,'');
     }
     title = encodeURIComponent(title);
+    title = title.replace("'","\\\'");
     if (!path) {
         path = location.pathname;
     }
     path = encodeURIComponent(path);
+    path = path.replace("'","\\\'");
     Win = window.open('/adm/wishlist?mode=newLink&setTitle='+title+'&setPath='+path,
                       'wishlistNewLink','width=560,height=350,scrollbars=0');
 }
@@ -7709,10 +8065,11 @@ var modalWindow = {
 };
 	var openMyModal = function(source,width,height,scrolling,transparency,style)
 	{
+                source = source.replace("'","&#39;");
 		modalWindow.windowId = "myModal";
 		modalWindow.width = width;
 		modalWindow.height = height;
-		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='"+transparency+"' src='" + source + "' style='"+style+"'>&lt/iframe>";
+		modalWindow.content = "<iframe width='"+width+"' height='"+height+"' frameborder='0' scrolling='"+scrolling+"' allowtransparency='"+transparency+"' src='" + source + "' style='"+style+"'></iframe>";
 		modalWindow.open();
 	};	
 // END LON-CAPA Internal -->
@@ -8316,7 +8673,7 @@ role status: active, previous or future.
 sub check_user_status {
     my ($udom,$uname,$cdom,$crs,$role,$sec) = @_;
     my %userinfo = &Apache::lonnet::dump('roles',$udom,$uname);
-    my @uroles = keys %userinfo;
+    my @uroles = keys(%userinfo);
     my $srchstr;
     my $active_chk = 'none';
     my $now = time;
@@ -9899,7 +10256,15 @@ sub ask_for_embedded_content {
                     ($path) =
                         ($toplevel =~ m{^(\Q/uploaded/$cdom/$cnum/\E(?:docs|supplemental)/(?:default|\d+)/\d+)/});
                 }
-                $fileloc = &Apache::lonnet::filelocation('',$toplevel);
+                if ($toplevel=~/^\/*(uploaded|editupload)/) {
+                    $fileloc = $toplevel;
+                    $fileloc=~ s/^\s*(\S+)\s*$/$1/;
+                    my ($udom,$uname,$fname) =
+                        ($fileloc=~ m{^/+(?:uploaded|editupload)/+($match_domain)/+($match_name)/+(.*)$});
+                    $fileloc = propath($udom,$uname).'/userfiles/'.$fname;
+                } else {
+                    $fileloc = &Apache::lonnet::filelocation('',$toplevel);
+                }
                 $fileloc =~ s{^/}{};
                 ($filename) = ($fileloc =~ m{.+/([^/]+)$});
                 $heading = &mt('Status of dependencies in [_1]',"$title ($filename)");
@@ -11055,7 +11420,7 @@ sub decompress_form {
                         "$topdir/media/player.swf",
                         "$topdir/media/swfobject.js",
                         "$topdir/media/expressInstall.swf");
-        my @camtasia8 = ("$topdir/","$topdir/$topdir.html",
+        my @camtasia8_1 = ("$topdir/","$topdir/$topdir.html",
                          "$topdir/$topdir.mp4",
                          "$topdir/$topdir\_config.xml",
                          "$topdir/$topdir\_controller.swf",
@@ -11077,13 +11442,36 @@ sub decompress_form {
                          "$topdir/skins/express_show/",
                          "$topdir/skins/express_show/player-min.css",
                          "$topdir/skins/express_show/spritesheet.png");
+        my @camtasia8_4 = ("$topdir/","$topdir/$topdir.html",
+                         "$topdir/$topdir.mp4",
+                         "$topdir/$topdir\_config.xml",
+                         "$topdir/$topdir\_controller.swf",
+                         "$topdir/$topdir\_embed.css",
+                         "$topdir/$topdir\_First_Frame.png",
+                         "$topdir/$topdir\_player.html",
+                         "$topdir/$topdir\_Thumbnails.png",
+                         "$topdir/playerProductInstall.swf",
+                         "$topdir/scripts/",
+                         "$topdir/scripts/config_xml.js",
+                         "$topdir/scripts/techsmith-smart-player.min.js",
+                         "$topdir/skins/",
+                         "$topdir/skins/configuration_express.xml",
+                         "$topdir/skins/express_show/",
+                         "$topdir/skins/express_show/spritesheet.min.css",
+                         "$topdir/skins/express_show/spritesheet.png",
+                         "$topdir/skins/express_show/techsmith-smart-player.min.css");
         my @diffs = &compare_arrays(\@paths,\@camtasia6);
         if (@diffs == 0) {
             $is_camtasia = 6;
         } else {
-            @diffs = &compare_arrays(\@paths,\@camtasia8);
+            @diffs = &compare_arrays(\@paths,\@camtasia8_1);
             if (@diffs == 0) {
                 $is_camtasia = 8;
+            } else {
+                @diffs = &compare_arrays(\@paths,\@camtasia8_4);
+                if (@diffs == 0) {
+                    $is_camtasia = 8;
+                }
             }
         }
     }
@@ -14451,7 +14839,7 @@ sub escape_url {
     my ($url)   = @_;
     my @urlslices = split(/\//, $url,-1);
     my $lastitem = &escape(pop(@urlslices));
-    return join('/',@urlslices).'/'.$lastitem;
+    return &HTML::Entities::encode(join('/',@urlslices),"'").'/'.$lastitem;
 }
 
 sub compare_arrays {
@@ -14509,6 +14897,17 @@ sub init_user_environment {
 		}
 	    }
 	    closedir(DIR);
+# If there is a undeleted lockfile for the user's paste buffer remove it.
+            my $namespace = 'nohist_courseeditor';
+            my $lockingkey = 'paste'."\0".'locked_num';
+            my %lockhash = &Apache::lonnet::get($namespace,[$lockingkey],
+                                                $domain,$username);
+            if (exists($lockhash{$lockingkey})) {
+                my $delresult = &Apache::lonnet::del($namespace,[$lockingkey],$domain,$username);
+                unless ($delresult eq 'ok') {
+                    &Apache::lonnet::logthis("Failed to delete paste buffer locking key in $namespace for ".$username.":".$domain." Result was: $delresult");
+                }
+            }
 	}
 # Give them a new cookie
 	my $id = ($args->{'robot'} ? 'robot'.$args->{'robot'}
@@ -14522,8 +14921,8 @@ sub init_user_environment {
     }
 # ------------------------------------ Check browser type and MathML capability
 
-    my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,
-        $clientunicode,$clientos,$clientmobile,$clientinfo) = &decode_user_agent($r);
+    my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml,$clientunicode,
+        $clientos,$clientmobile,$clientinfo,$clientosversion) = &decode_user_agent($r);
 
 # ------------------------------------------------------------- Get environment
 
@@ -14556,6 +14955,7 @@ sub init_user_environment {
 	     "browser.os"         => $clientos,
              "browser.mobile"     => $clientmobile,
              "browser.info"       => $clientinfo,
+             "browser.osversion"  => $clientosversion,
 	     "server.domain"      => $Apache::lonnet::perlvar{'lonDefDomain'},
 	     "request.course.fn"  => '',
 	     "request.course.uri" => '',
@@ -14926,7 +15326,12 @@ sub build_filters {
         $output .= '<input type="hidden" name="phase" value="courselist" />'."\n".
                    '<input type="hidden" name="prevphase" value="'.
                    $prevphase.'" />'."\n";
-    } elsif ($formname ne 'quotacheck') {
+    } elsif ($formname eq 'quotacheck') {
+        $output .= qq|
+<input type="hidden" name="sortby" value="" />
+<input type="hidden" name="sortorder" value="" />
+|;
+    } else {
         my $name_input;
         if ($cnameelement ne '') {
             $name_input = '<input type="hidden" name="cnameelement" value="'.
@@ -15219,7 +15624,6 @@ sub search_courses {
     return %courses;
 }
 
-
 =pod
 
 =back
@@ -15227,36 +15631,6 @@ sub search_courses {
 =cut
 
 
-sub build_release_hashes {
-    my ($checkparms,$checkresponsetypes,$checkcrstypes,$anonsurvey,$randomizetry) = @_;
-    return unless((ref($checkparms) eq 'HASH') && (ref($checkresponsetypes) eq 'HASH') &&
-                  (ref($checkcrstypes) eq 'HASH') && (ref($anonsurvey) eq 'HASH') &&
-                  (ref($randomizetry) eq 'HASH'));
-    foreach my $key (keys(%Apache::lonnet::needsrelease)) {
-        my ($item,$name,$value) = split(/:/,$key);
-        if ($item eq 'parameter') {
-            if (ref($checkparms->{$name}) eq 'ARRAY') {
-                unless(grep(/^\Q$name\E$/,@{$checkparms->{$name}})) {
-                    push(@{$checkparms->{$name}},$value);
-                }
-            } else {
-                push(@{$checkparms->{$name}},$value);
-            }
-        } elsif ($item eq 'resourcetag') {
-            if ($name eq 'responsetype') {
-                $checkresponsetypes->{$value} = $Apache::lonnet::needsrelease{$key}
-            }
-        } elsif ($item eq 'course') {
-            if ($name eq 'crstype') {
-                $checkcrstypes->{$value} = $Apache::lonnet::needsrelease{$key};
-            }
-        }
-    }
-    ($anonsurvey->{major},$anonsurvey->{minor}) = split(/\./,$Apache::lonnet::needsrelease{'parameter:type:anonsurvey'});
-    ($randomizetry->{major},$randomizetry->{minor}) = split(/\./,$Apache::lonnet::needsrelease{'parameter:type:randomizetry'});
-    return;
-}
-
 sub update_content_constraints {
     my ($cdom,$cnum,$chome,$cid) = @_;
     my %curr_reqd_hash = &Apache::lonnet::userenvironment($cdom,$cnum,'internal.releaserequired');
@@ -15633,6 +16007,26 @@ sub cleanup_html {
     return $outgoing;
 }
 
+# Checks for critical messages and returns a redirect url if one exists.
+# $interval indicates how often to check for messages.
+sub critical_redirect {
+    my ($interval) = @_;
+    if ((time-$env{'user.criticalcheck.time'})>$interval) {
+        my @what=&Apache::lonnet::dump('critical', $env{'user.domain'}, 
+                                        $env{'user.name'});
+        &Apache::lonnet::appenv({'user.criticalcheck.time'=>time});
+        my $redirecturl;
+        if ($what[0]) {
+	    if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) {
+	        $redirecturl='/adm/email?critical=display';
+	        my $url=&Apache::lonnet::absolute_url().$redirecturl;
+                return (1, $url);
+            }
+        }
+    } 
+    return ();
+}
+
 # Use:
 #   my $answer=reply("encrypt:passwd:$udom:$uname:$upass",$tryserver);
 #