--- rat/lonpageflip.pm	2014/06/26 18:21:24	1.80.8.5
+++ rat/lonpageflip.pm	2013/11/28 02:23:25	1.83
@@ -2,7 +2,7 @@
 #
 # Page flip handler
 #
-# $Id: lonpageflip.pm,v 1.80.8.5 2014/06/26 18:21:24 raeburn Exp $
+# $Id: lonpageflip.pm,v 1.83 2013/11/28 02:23:25 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -36,7 +36,6 @@ use LONCAPA;
 use Apache::Constants qw(:common :http REDIRECT);
 use Apache::lonnet;
 use Apache::loncommon();
-use Apache::lonlocal;
 use HTML::TokeParser;
 use GDBM_File;
 
@@ -218,26 +217,6 @@ sub get_next_possible_move {
               return ($next,$mapurl);
 }
 
-sub navlaunch {
-    my ($r)=@_;
-    &Apache::loncommon::content_type($r,'text/html');
-    &Apache::loncommon::no_cache($r);
-    $r->send_http_header;
-    $r->print(&Apache::loncommon::start_page('Launched'));
-    $r->print(<<ENDNAV);
-    <p><a href="/adm/flip?postdata=firstres%3a">Goto first resource</a></p>
-    <script type="text/javascript">
-        function collapse() {
-            menu=window.open("/adm/navmaps?collapseExternal","loncapanav",
-                             "height=600,width=400,scrollbars=1");
-            this.document.location='/adm/navmaps?turningOffExternal';
-        }
-    </script>
-    <p><a href="javascript:collapse();">Collapse external navigation window</a></p>
-ENDNAV
-    $r->print(&Apache::loncommon::end_page());
-}
-
 sub first_accessible_resource {
     my $furl;
     if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db',
@@ -249,8 +228,7 @@ sub first_accessible_resource {
 	    my ($name,$value) = split(/=/,$pair);
 	    $args{&unescape($name)} = &unescape($value);
 	}
-        if ((($env{'environment.remotenavmap'} eq 'on') && ($furl =~ m{^/adm/navmaps})) ||
-            (!&Apache::lonnet::allowed('bre',$url,$args{'symb'}))) {
+        if (!&Apache::lonnet::allowed('bre',$url,$args{'symb'})) {
 # Wow, we cannot see this ... move forward to the next one that we can see
 	    my ($newrid,$newmap)=&move($hash{'first_rid'},$hash{'first_mapurl'},'forward');
 # Build the new URL
@@ -304,7 +282,7 @@ sub handler {
 	     
 	  return REDIRECT;
       }
-      if ($direction eq 'return' || $direction eq 'navlaunch') {
+      if ($direction eq 'return') {
 # -------------------------------------------------------- Return to last known
          my $last;
          if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
@@ -327,17 +305,12 @@ sub handler {
             untie %hash;
          } else {
 	    $newloc='/adm/navmaps';
-         }
-         if (($newloc =~ m{^/adm/navmaps}) && ($direction eq 'navlaunch')) {
-             &navlaunch($r);
-             return OK;
-         } else {
+         }  
 	     &Apache::loncommon::content_type($r,'text/html');
 	     $r->header_out(Location => 
 			    &Apache::lonnet::absolute_url().$newloc);
 	     
 	     return REDIRECT;
-         }
       }
       $currenturl=~s/^https?\:\/\///;
       $currenturl=~s/^[^\/]+//;
@@ -354,16 +327,11 @@ sub handler {
          if ($last) {
 	     $currenturl=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($last))[2]);
 	 } else {
-             if ($direction eq 'return') {
 		 &Apache::loncommon::content_type($r,'text/html');
 		 $r->header_out(Location => 
 				&Apache::lonnet::absolute_url().
 				'/adm/noidea.html');
 		 return REDIRECT;
-             } else {
-                 &navlaunch($r);
-                 return OK;
-             }
          }
       }
 # ------------------------------------------- Do we have any idea where we are?
@@ -436,13 +404,24 @@ sub handler {
 		  if ($direction eq 'back') {
                      &Apache::lonnet::linklog($redirecturl,$currenturl);
 		  }
-# ------------------------------------- Check for and display critical messages
-                  my ($redirect, $url) = &Apache::loncommon::critical_redirect(300);
-                  unless ($redirect) {
-                      $url=&Apache::lonnet::absolute_url().$redirecturl;
-                      $url = &add_get_param($url, { 'symb' => $redirectsymb});
-                  }
-                  &Apache::loncommon::content_type($r,'text/html');
+# ------------------------------------------------- Check for critical messages
+		  if ((time-$env{'user.criticalcheck.time'})>300) {
+                     my @what=&Apache::lonnet::dump
+                                  ('critical',$env{'user.domain'},
+                                              $env{'user.name'});
+                     if ($what[0]) {
+	                if (($what[0] ne 'con_lost') && 
+                            ($what[0]!~/^error\:/)) {
+	                   $redirecturl='/adm/email?critical=display';
+			   $redirectsymb='';
+                        }
+                     }
+                     &Apache::lonnet::appenv({'user.criticalcheck.time'=>time});
+		  }
+
+		  &Apache::loncommon::content_type($r,'text/html');
+		  my $url=&Apache::lonnet::absolute_url().$redirecturl;
+		  $url = &add_get_param($url, { 'symb' => $redirectsymb});
                   $r->header_out(Location => $url);
                   return REDIRECT;
 	      } else {
@@ -492,7 +471,7 @@ ENDSTART
                           &Apache::loncommon::start_page('No Resource')
                          .'<h2>'.$lt{'title'}.'</h2>'
                          .'<p>'.$lt{'explain'}.'</p>');
-		  }
+                  }
                   $r->print(
                       &Apache::lonhtmlcommon::actionbox(
                           ['<a href="/adm/flip?postdata=return:">'.$lt{'back'}.'</a></li>',
@@ -552,8 +531,6 @@ described at http://www.lon-capa.org.
 
 =item get_next_possible_move()
 
-=item navlaunch()
-
 =item first_accessible_resource()
 
 =item handler()