--- loncom/interface/lonmenu.pm	2010/03/03 21:33:15	1.315
+++ loncom/interface/lonmenu.pm	2010/08/26 04:11:34	1.315.2.3
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines to control the menu
 #
-# $Id: lonmenu.pm,v 1.315 2010/03/03 21:33:15 droeschl Exp $
+# $Id: lonmenu.pm,v 1.315.2.3 2010/08/26 04:11:34 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -220,6 +220,11 @@ sub primary_menu {
     my $menu;
     # each element of @primary contains following array:
     # (link url, icon path, alt text, link text, condition)
+    my $public;
+    if ((($env{'user.name'} eq 'public') && ($env{'user.domain'} eq 'public'))
+        || (($env{'user.name'} eq '') && ($env{'user.domain'} eq ''))) {
+        $public = 1;
+    }
     foreach my $menuitem (@primary_menu) {
         # evaluate conditions 
         next if    ref($menuitem)       ne 'ARRAY';    #
@@ -227,18 +232,18 @@ sub primary_menu {
                 && &Apache::lonmsg::mynewmail();       # whether a new msg 
         next if    $$menuitem[4]        eq 'newmsg'    # arrived or not
                 && !&Apache::lonmsg::mynewmail();      # 
-        next if    $$menuitem[4]        !~ /public/    ##we've a public user, 
-                && $env{'user.name'}    eq 'public'    ##who should not see all 
-                && $env{'user.domain'}  eq 'public';   ##links
-        next if    $$menuitem[4]        eq 'onlypublic'# hide links which are 
-                && $env{'user.name'}    ne 'public'    # only visible to public
-                && $env{'user.domain'}  ne 'public';   # users
+        next if    $$menuitem[4]        !~ /public/    ##we've a public user,
+                && $public;                            ##who should not see all
+                                                       ##links
+        next if    $$menuitem[4]        eq 'onlypublic'# hide links which are
+                && !$public;                           # only visible to public
+                                                       # users
         next if    $$menuitem[4]        eq 'roles'     ##show links depending on
-                && &Apache::loncommon::show_course();  ##term 'Courses' or 
+                && &Apache::loncommon::show_course();  ##term 'Courses' or
         next if    $$menuitem[4]        eq 'courses'   ##'Roles' wanted
                 && !&Apache::loncommon::show_course(); ##
-        
-            
+
+
         if ($$menuitem[3] eq 'Help') { # special treatment for helplink
             $menu .= '<li>'.&Apache::loncommon::top_nav_help('Help').'</li>';
         } else {
@@ -251,15 +256,43 @@ sub primary_menu {
     return "<ol class=\"LC_primary_menu LC_right\">$menu</ol>";
 }
 
+#returns hashref {user=>'',dom=>''} containing:
+#   own name, domain if user is au
+#   name, domain of parent author if user is ca or aa
+#empty return if user is not an author or not on homeserver
+#
+#TODO this should probably be moved somewhere more central
+#since it can be used by different parts of the system
+sub getauthor{
+    return unless $env{'request.role'}=~/^(ca|aa|au)/; #nothing to do if user isn't some kind of author
+
+                        #co- or assistent author?
+    my ($dom, $user) = ($env{'request.role'} =~ /^(?:ca|aa)\.\/($match_domain)\/($match_username)$/)
+                       ? ($1, $2) #domain, username of the parent author
+                       : @env{ ('request.role.domain', 'user.name') }; #own domain, username
+
+    # current server == home server?
+    my $home =  &Apache::lonnet::homeserver($user,$dom);
+    foreach (&Apache::lonnet::current_machine_ids()){
+        return {user => $user, dom => $dom} if $_ eq $home;
+    }
+
+    # if wrong server
+    return;
+}
+
 
 sub secondary_menu {
     my $menu;
 
     my $crstype = &Apache::loncommon::course_type();
-    my $canedit = &Apache::lonnet::allowed('mdc', $env{'request.course.id'});
-    my $canviewgrps = &Apache::lonnet::allowed('vcg', $env{'request.course.id'}
-                   . ($env{'request.course.sec'} ? "/$env{'request.course.sec'}"
-                                                 : '')); 
+    my $crs_sec = $env{'request.course.id'} . ($env{'request.course.sec'}
+                                               ? "/$env{'request.course.sec'}"
+                                               : '');
+    my $canedit       = &Apache::lonnet::allowed('mdc', $env{'request.course.id'});
+    my $canviewgrps   = &Apache::lonnet::allowed('vcg', $crs_sec);
+    my $author        = getauthor();
+
     my $showlink = &show_return_link();
     my %groups = &Apache::lonnet::get_active_groups(
                      $env{'user.domain'}, $env{'user.name'},
@@ -269,6 +302,7 @@ sub secondary_menu {
         # evaluate conditions 
         next if    ref($menuitem)  ne 'ARRAY';
         next if    $$menuitem[4]   ne 'always'
+                && $$menuitem[4]   ne 'author'
                 && !$env{'request.course.id'};
         next if    $$menuitem[4]   eq 'showreturn'
                 && !$showlink
@@ -290,6 +324,8 @@ sub secondary_menu {
         next if    $$menuitem[4]   =~ /showgroups$/
                 && !$canviewgrps
                 && !%groups;
+        next if    $$menuitem[4]    eq 'author'
+                && !$author;
 
         if ($$menuitem[3] eq 'Roles' && $env{'request.course.id'}) {
             # special treatment for role selector
@@ -331,11 +367,18 @@ sub secondary_menu {
         $menu =~ s/\[url\]/$escurl/g;
         $menu =~ s/\[symb\]/$escsymb/g;
     }
+    $menu =~ s/\[uname\]/$$author{user}/g;
+    $menu =~ s/\[udom\]/$$author{dom}/g;
 
     return "<ul id=\"LC_secondary_menu\">$menu</ul>";
 }
 
 sub show_return_link {
+    if (($env{'request.noversionuri'} =~ m{^/adm/(viewclasslist|navmaps)($|\?)})
+        || ($env{'request.noversionuri'} =~ m{^/adm/.*/aboutme($|\?)})) {
+
+        return if ($env{'form.register'});
+    }
     return (($env{'request.noversionuri'}=~m{^/(res|public)/} &&
 	     $env{'request.symb'} eq '')
 	    ||
@@ -344,7 +387,7 @@ sub show_return_link {
 	    (($env{'request.noversionuri'}=~/^\/adm\//) &&
 	     ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
 	     ($env{'request.noversionuri'}!~
-	      m[^/adm/.*/(smppg|bulletinboard|aboutme)($|\?)])
+	      m[^/adm/.*/(smppg|bulletinboard)($|\?)])
 	     ));
 }
 
@@ -417,9 +460,12 @@ sub innerregister {
         } else {
             $contentstext = &mt('Course Contents');
         }
-        my @crumbs = ({text  => $contentstext, 
-                       href  => "Javascript:gonav('/adm/navmaps')"});
-
+        my @crumbs;
+        unless (($forcereg) && ($env{'request.noversionuri'} eq '/adm/navmaps')
+                && ($mapurl eq $env{'course.'.$env{'request.course.id'}.'.url'})) {
+            @crumbs = ({text  => $contentstext,
+                        href  => "Javascript:gopost('/adm/navmaps','')"});
+        }
         if ($mapurl ne $env{'course.'.$env{'request.course.id'}.'.url'}) { 
             push(@crumbs, {text  => '...',
                            no_mt => 1});
@@ -433,6 +479,7 @@ sub innerregister {
 
         &Apache::lonhtmlcommon::clear_breadcrumbs();
         &Apache::lonhtmlcommon::add_breadcrumb(@crumbs);
+
         #$breadcrumb .= &Apache::lonhtmlcommon::breadcrumbs(undef,undef,0);
 	unless (($env{'request.state'} eq 'edit') || ($newmail) ||
 		($env{'request.state'} eq 'construct') ||
@@ -440,6 +487,11 @@ sub innerregister {
             $separator = &Apache::loncommon::head_subbox();
         }
         #
+    } elsif (!$const_space){
+        #a situation when we're looking at a resource outside of context of a
+        #course or construction space (e.g. with cumulative rights)
+        &Apache::lonhtmlcommon::clear_breadcrumbs();
+        &Apache::lonhtmlcommon::add_breadcrumb({text => 'View Resource'});
     }
     if ($env{'request.state'} eq 'construct') {
         $newmail = $titletable;
@@ -533,6 +585,8 @@ sub innerregister {
             my $cfuname='';
             my $cfudom='';
             my $uploaded;
+            my $switchserver='';
+            my $home;
             if ($env{'request.filename'}) {
                 my $file=&Apache::lonnet::declutter($env{'request.filename'});
                 if (defined($cnum) && defined($cdom)) {
@@ -543,18 +597,20 @@ sub innerregister {
                     # Check that the user has permission to edit this resource
                     ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
                     if (defined($cfudom)) {
-		        my $home=&Apache::lonnet::homeserver($cfuname,$cfudom);
+		        $home=&Apache::lonnet::homeserver($cfuname,$cfudom);
 		        my $allowed=0;
 		        my @ids=&Apache::lonnet::current_machine_ids();
 		        foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
 		        if ($allowed) {
                             $cfile=$file;
+                        } else {
+                            $switchserver=$file;
                         }
                     }
                 }
             }
             # Finally, turn the button on or off
-            if ($cfile && !$const_space) {
+            if (($cfile || $switchserver) && !$const_space) {
                 my $nocrsedit;
                 # Suppress display where CC has switched to student role.
                 if ($env{'request.course.id'}) {
@@ -566,9 +622,19 @@ sub innerregister {
                 if ($nocrsedit) {
                     $editbutton=&clear(6,1);
                 } else {
+                    my $bot = "go('$cfile')";
+                    if ($switchserver) {
+                        if ( $env{'request.symb'} && $env{'request.course.id'} ) {
+                            my ($mapurl,$rid,$resurl) = &Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
+                            $cfile = '/adm/switchserver?otherserver='.$home.'&amp;role='.
+                                     &HTML::Entities::encode($env{'request.role'},'"<>&').'&amp;symb='.
+                                     &HTML::Entities::encode($env{'request.symb'},'"<>&');
+                            $bot = "need_switchserver('$cfile');";
+                        }
+                    }
                     $editbutton=&switch
                        ('','',6,1,'pcstr.gif','edit[_1]','resource[_2]',
-                     "go('".$cfile."');","Edit this resource");
+                       $bot,"Edit this resource");
                     $noeditbutton = 0;
                 }
             } elsif ($editbutton eq '') {
@@ -663,7 +729,7 @@ $menuitems.="Make notes and annotations
                                 "&go('/adm/requestcourse')&Course requests\n";
                 }
             }
-            unless ($env{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
+            unless ($env{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme|viewclasslist|portfolio)(\?|$)/) {
 		if ((!$env{'request.enc'}) && ($env{'request.noversionuri'} !~ m{^/adm/wrapper/ext/})) {
 		    $menuitems.=(<<ENDREALRES);
 s&6&3&catalog.gif&catalog[_2]&info[_1]&catalog_info()&Show Metadata
@@ -722,10 +788,11 @@ ENDMENUITEMS
                 Apache::lonhtmlcommon::add_breadcrumb_tool(
                      'tools', @inlineremote[63]);
             }
-            
 
-            Apache::lonhtmlcommon::add_breadcrumb_tool(
-                'advtools', @inlineremote[61,71,72,73,92]);
+            unless ($env{'request.noversionuri'}=~ m{^/adm/(navmaps|viewclasslist)(\?|$)}) {
+                Apache::lonhtmlcommon::add_breadcrumb_tool(
+                    'advtools', @inlineremote[61,71,72,73,92]);
+            }
         }
 
 #       # Registered, textual output
@@ -1554,6 +1621,9 @@ sub utilityfunctions {
     my $end_page_bookmark = 
         &Apache::loncommon::end_page({'js_ready' => 1});
 
+    my $confirm_switch = &mt("Editing requires switching to the resource's home server.").'\n'.
+                         &mt('Switch server?');
+
 return (<<ENDUTILITY)
 
     var currentURL="$currenturl";
@@ -1577,6 +1647,15 @@ function gotop(url) {
     }
 }
 
+function need_switchserver(url) {
+    if (url!='' && url!= null) {
+        if (confirm("$confirm_switch")) {
+            go(url);
+        }
+    }
+    return;
+}
+
 function gopost(url,postdata) {
    if (url!='') {
       this.document.server.action=url;
@@ -1666,7 +1745,7 @@ function edit_bookmarks() {
    go('');
    w_BookmarkPal_flag=1;
    bookmarkpal=window.open("/adm/bookmarks",
-               "BookmarkPal", "width=400,height=505,scrollbars=0");
+               "BookmarkPal", "width=500,height=505,scrollbars=0");
 }
 
 function annotate() {