--- loncom/interface/lonhtmlcommon.pm	2012/03/20 13:36:19	1.303
+++ loncom/interface/lonhtmlcommon.pm	2012/03/26 10:24:08	1.306
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common html routines
 #
-# $Id: lonhtmlcommon.pm,v 1.303 2012/03/20 13:36:19 www Exp $
+# $Id: lonhtmlcommon.pm,v 1.306 2012/03/26 10:24:08 foxr Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1111,6 +1111,7 @@ sub crumbs {
     if ($uri !~ m|/$|) { $output=~s|/$||; }
     $output.='</span>';
 
+
     return $output;
 }
 
@@ -1175,6 +1176,8 @@ ENDEDITOR
 <script type="text/javascript" src="/adm/jpicker/js/jpicker-1.1.6.min.js" >
 </script>
 <link rel="stylesheet" type="text/css" href="/adm/jpicker/css/jPicker-1.1.6.min.css" />
+<script type='text/javascript' src='/adm/countdown/js/jquery.countdown.js'></script>
+<link rel="stylesheet" type="text/css" src='/adm/countdown/css/jquery.countdown.css' />
 ENDJQUERY
 	return $s;
 }
@@ -1306,8 +1309,30 @@ sub htmlareaselectactive {
                 $.fn.jPicker.defaults.images.clientPath="/adm/jpicker/images/";
                 $(".colorchooser").jPicker();
 
+
 	});
 ';
+    # Code to put a due date countdown in 'duedatecountdown' span.
+    # This is currently located in the breadcrumb headers.
+    # note that the dueDateLayout is internatinoalized below.
+    # Here document is used to support the substitution into the javascript below.
+    # ..which unfortunately necessitates escaping the $'s in the javascript.
+
+    my $dueDateLayout = '<b>' .  &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn}') . '</b>';
+    $output .= <<JAVASCRIPT;
+\$(document).ready(function() {
+   if (typeof(dueDate) != "undefined") {
+      \$("#duedatecountdown").countdown({until: dueDate, compact: true, 
+         layout: "$dueDateLayout",
+         onTick: function (periods) {
+            if(\$.countdown.periodsToSeconds(periods) < 60) {
+               \$(this).css("color", "red");   //Highlight last minute.
+            }
+         }
+      });
+   }
+});
+JAVASCRIPT
     if ($dragmath_prefix ne '') {
         $output .= '
 
@@ -1383,6 +1408,39 @@ sub show_return_link {
 }
 
 
+##
+#   Set the dueDate variable...note this is done in the timezone
+#   of the browser.
+#
+# @param epoch relative time at which the problem is due.
+#
+# @return the javascript fragment to set the date:
+#
+sub set_due_date {
+    my $dueStamp = shift;
+    my $duems    = $dueStamp * 1000; # Javascript Date object needs ms not seconds.
+
+    my $now = time()*1000;
+
+    # This slightly obscure bit of javascript sets the dueDate variable
+    # to the time in the browser at which the problem was due.  
+    # The code should correct for gross differences between the server
+    # and client's time setting
+
+    my $js = "
+<script type='text/javascript'>
+  //<![CDATA[
+var serverDueDate = $duems;
+var serverTime    = $now;
+var clientTime    = (new Date()).getTime();
+var dueDate       = new Date(serverDueDate + (clientTime - serverTime));
+
+  //]]>
+</script>
+";
+
+}
+
 ############################################################
 ############################################################
 
@@ -1501,9 +1559,12 @@ returns: nothing
 
         # last breadcrumb is the first order heading of a page
         # for course breadcrumbs it's just bold
+
         $links .= &htmltag( 'li', htmltag($CourseBreadcrumbs ? 'b' : 'h1',
                 $lasttext), {title => $lasttext});
 
+	$links .=   '<li> <span id="duedatecountdown"></span></li>'; 
+
         my $icons = '';
         $faq  = $last->{'faq'}  if (exists($last->{'faq'}));
         $bug  = $last->{'bug'}  if (exists($last->{'bug'}));
@@ -1521,6 +1582,7 @@ returns: nothing
                                                          $faq,$bug);
         }
         #
+
 		
 
         unless ($CourseBreadcrumbs) {
@@ -1529,12 +1591,14 @@ returns: nothing
             $links = &htmltag('ul',  $links, { class => "LC_CourseBreadcrumbs" });
         }
 
+
         if ($component) {
             $links = &htmltag('span', 
                              ( $no_mt ? $component : mt($component) ).
                              ( $icons ? $icons : '' ),
                              { class => 'LC_breadcrumbs_component' } )
-                             .$links;
+                             .$links 
+;
         }
         
         &render_tools(\$links);
@@ -1545,7 +1609,12 @@ returns: nothing
         # Return the @Crumbs stack to what we started with
         push(@Crumbs,$last);
         shift(@Crumbs);
+
+
         # Return the breadcrumb's line
+
+    
+
         return "$links";
     }