--- loncom/interface/lonsimplepage.pm	2006/04/07 21:56:02	1.37
+++ loncom/interface/lonsimplepage.pm	2006/07/08 01:12:53	1.44
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Simple Page Editor
 #
-# $Id: lonsimplepage.pm,v 1.37 2006/04/07 21:56:02 albertel Exp $
+# $Id: lonsimplepage.pm,v 1.44 2006/07/08 01:12:53 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -37,6 +37,8 @@ use Apache::lonfeedback;
 use Apache::lonlocal;
 use Apache::lonprintout;
 use Apache::lonxml;
+use Apache::longroup;
+use LONCAPA;
 
 sub handler {
     my $r = shift;
@@ -48,7 +50,7 @@ sub handler {
     if ($target eq 'tex') {
 	$r->print(&Apache::lonprintout::print_latex_header($env{'form.latex_type'}));
     } 
-    my (undef,undef,undef,undef,$marker,$caller)=split(/\//,$r->uri);
+    my (undef,undef,$udom,$uname,$marker,$caller)=split(/\//,$r->uri);
 # Is this even in a course?
     unless ($env{'request.course.id'}) {
 	if ($target ne 'tex') {
@@ -63,21 +65,23 @@ sub handler {
     my $crs = $env{'course.'.$env{'request.course.id'}.'.num'};
     my $grp_view_permission = &Apache::lonnet::allowed('vcg',
                                                    $env{'request.course.id'});
-    my $namespace;
+    my ($namespace,$group,$grp_desc);
 
     my %curr_group = ();
     my %groupinfo = ();
-    if ($caller eq 'grppg') {
+    if ($dom && $crs && ($udom eq $dom) && ($uname eq $crs)) {
         $marker =~ s/\W//g;
-        $namespace = 'grppage_'.$marker;
-        my %curr_groups;
-        if (!&Apache::loncommon::coursegroups(\%curr_groups,$dom,$crs,$marker)) {
+        $group = $marker;
+        my %curr_groups = &Apache::longroup::coursegroups($dom,$crs,$group);
+        if (!%curr_groups) {
 	    &Apache::loncommon::simple_error_page($r,'','Invalid group name');
 	    return OK;
         }
         %groupinfo = 
-	    &Apache::loncommon::get_group_settings($curr_groups{$marker});
-    } else {  
+	    &Apache::longroup::get_group_settings($curr_groups{$group});
+        $grp_desc = &unescape($groupinfo{'description'});
+        $namespace = 'grppage_'.$group;
+    } else {
         $marker=~s/\D//g;
         $namespace = 'smppage_'.$marker;
     }
@@ -92,25 +96,20 @@ sub handler {
        'aaa_title'         => 'Page Title',
        'bbb_content'       => 'Content',
        'ccc_webreferences' => 'Web References');
-    if ($caller eq 'grppg') {
+    if ($group ne '') {
         $syllabusfields{'abb_links'} = &mt('Functionality');
     }
 
 
 # ------------------------------------------------------------ Get query string
     &Apache::loncommon::get_unprocessed_cgi
-                        ($ENV{'QUERY_STRING'},['forcestudent','forceedit','register']);
-# ----------------------------------------------------- Force menu registration
-    my $addentries='';
-    if ($env{'form.register'}) {
-       $addentries=' onLoad="'.&Apache::lonmenu::loadevents().
-	   '" onUnload="'.&Apache::lonmenu::unloadevents().'"';
-    }
+                        ($ENV{'QUERY_STRING'},['forcestudent','forceedit',
+                                               'register','ref']);
 # --------------------------------------------------------------- Force Student
     my $forcestudent='';
     if ($env{'form.forcestudent'} || $target eq 'tex' ) { $forcestudent='student'; };
-     my $forceedit='';
-     if ($env{'form.forceedit'}) { $forceedit='edit'; }
+    my $forceedit='';
+    if ($env{'form.forceedit'}) { $forceedit='edit'; }
 
    
     my %syllabus=&Apache::lonnet::dump($namespace,$dom,$crs);
@@ -119,24 +118,32 @@ sub handler {
 
     if ($target ne 'tex') {
         my $title = 'Course Page';
-        if ($caller eq 'grppg') {
+        if ($group ne '') {
             $title = 'Group Page';
         }
 	my $start_page = 
 	    &Apache::loncommon::start_page($title,undef,
 					   {'function'       => $forcestudent,
-					    'add_entries'    => $addentries,
 					    'domain'         => $dom,
 					    'force_register' =>
 						$env{'form.register'},});
 	$r->print($start_page);
     }
 
-    if ($caller eq 'grppg') {
+    if ($group ne '') {
         if (($grp_view_permission) || 
-                           (&Apache::loncommon::check_group_access($caller))) {
-            unless(&Apache::lonnet::allowed('vgh',
-                                      $env{'request.course.id'}.'/'.$marker)) {
+                            (&Apache::longroup::check_group_access($caller))) {
+            if ((!&Apache::lonnet::allowed('vgh',
+                                      $env{'request.course.id'}.'/'.$marker))
+                && (!&Apache::lonnet::allowed('mdg',
+                                     $env{'request.course.id'}.'/'.$marker))) {
+                if ($env{'form.ref'} eq 'grouplist') {
+                    my $gpterm =  &Apache::loncommon::group_term();
+                    my $ucgpterm = $gpterm;
+                    $ucgpterm =~ s/^(\w)/uc($1)/e;
+                    $r->print(&grouppage_breadcrumbs($dom,$crs,$group,$gpterm,
+                                                     $ucgpterm,$grp_desc));
+                }
                 &display_group_links($r,$target,$marker,'view',%groupinfo);
                 return OK;
             }
@@ -154,9 +161,9 @@ sub handler {
     }
 
     my $allowed;
-    if ($caller eq 'grppg') {
-        $allowed  = $grp_view_permission;
-        unless ($allowed) {
+    if ($group ne '') {
+        $allowed  = &Apache::lonnet::allowed('mdg',$env{'request.course.id'});
+        if (!$allowed) {
             $allowed = &Apache::lonnet::allowed('mgh',$env{'request.course.id'}.
                                                                   '/'.$marker);
         }
@@ -240,7 +247,7 @@ sub handler {
 		    $message=&Apache::lonspeller::markeduptext($message);
 		}
 		$message=&Apache::lontexconvert::msgtexconverted($message);
-                if ($_ eq 'abb_links' && $caller eq 'grppg') {
+                if ($_ eq 'abb_links' && $group ne '') {
                     $r->print('<br /><input type="hidden" name="'.$_.
                                           '" value="'.$syllabus{$_}.'" />');
                     &display_group_links($r,$target,$marker,'edit',%groupinfo);
@@ -310,15 +317,20 @@ sub handler {
 
 sub display_group_links {
     my ($r,$target,$marker,$context,%groupinfo) = @_;
+    my $refarg;
+    if ($env{'form.ref'} eq 'grouplist') {
+        $refarg = '&amp;ref=grouplist';
+    }
     my @available = ();
     my %menu = ();
     %{$menu{'email'}} = (
                         text => 'Group e-mail',
-                        href => '/adm/email?compose=group&group='.$marker,
+                        href => '/adm/email?compose=group&amp;group='.$marker.
+                        $refarg,
                       );
     %{$menu{'discussion'}} = (
                         text => 'Discussion Boards',
-                        href => '/adm/groupboards?group='.$marker,
+                        href => '/adm/groupboards?group='.$marker.$refarg,
                       );
     %{$menu{'chat'}} = (
                         text => 'Group chat',
@@ -326,11 +338,11 @@ sub display_group_links {
                       );
     %{$menu{'files'}} = (
                         text => 'File repository',
-                        href => '/adm/coursegrp_portfolio?group='.$marker,
+                        href => '/adm/coursegrp_portfolio?group='.$marker.$refarg,
                       );
     %{$menu{'roster'}} = (
                         text => 'Membership roster',
-                        href => '/adm/grouproster?group='.$marker,
+                        href => '/adm/grouproster?group='.$marker.$refarg,
                       );
     foreach my $tool (sort(keys(%menu))) {
         if ($groupinfo{functions}{$tool} eq 'on') {
@@ -367,7 +379,21 @@ sub display_group_links {
         }
     }
 }
- 
+
+sub grouppage_breadcrumbs {
+    my ($cdom,$cnum,$group,$gpterm,$ucgpterm,$description) = @_;
+    &Apache::lonhtmlcommon::clear_breadcrumbs();
+    &Apache::lonhtmlcommon::add_breadcrumb
+        ({href=>"/adm/coursegroups",
+          text=>"$ucgpterm".'s',
+          title=>"Display $ucgpterm".'s'},
+        {href=>"/adm/$cdom/$cnum/$group/smppg?ref=grouplist",
+          text=>"$ucgpterm: $description",
+          title=>"Go to group's home page"},
+        );
+    my $output .= &Apache::lonhtmlcommon::breadcrumbs(&mt('[_1] page - [_2]',$gpterm,$description));
+    return $output;
+}
 
 1;
 __END__