--- loncom/interface/lonmenu.pm	2011/11/10 21:15:55	1.361
+++ loncom/interface/lonmenu.pm	2012/11/08 18:37:44	1.390
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines to control the menu
 #
-# $Id: lonmenu.pm,v 1.361 2011/11/10 21:15:55 raeburn Exp $
+# $Id: lonmenu.pm,v 1.390 2012/11/08 18:37:44 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -26,8 +26,6 @@
 # http://www.lon-capa.org/
 #
 #
-# There is one parameter controlling the action of this module:
-#
 
 =head1 NAME
 
@@ -35,7 +33,8 @@ Apache::lonmenu
 
 =head1 SYNOPSIS
 
-Coordinates the response to clicking an image.
+Loads contents of /home/httpd/lonTabs/mydesk.tab, 
+used to generate inline menu, and Main Menu page. 
 
 This is part of the LearningOnline Network with CAPA project
 described at http://www.lon-capa.org.
@@ -74,10 +73,19 @@ It is set to 'done' in the BEGIN block o
 =item @primary_menu
 
 The elements of this array reference arrays that are made up of the components
-of those lines of mydesk.tab that start with prim.
+of those lines of mydesk.tab that start with prim:.
 It is used by primary_menu() to generate the corresponding menu.
 It gets filled in the BEGIN block of this module.
 
+=item %primary_sub_menu
+
+The keys of this hash reference are the names of items in the primary_menu array 
+which have sub-menus.  For each key, the corresponding value is a reference to
+an array containing components extracted from lines in mydesk.tab which begin
+with primsub:.
+This hash, which is used by primary_menu to generate sub-menus, is populated in
+the BEGIN block.
+
 =item @secondary_menu
 
 The elements of this array reference arrays that are made up of the components
@@ -107,6 +115,18 @@ entries from mydesk.tab
 
 Same as primary_menu() but operates on @secondary_menu.
 
+=item create_submenu()
+
+Creates XHTML for unordered list of sub-menu items which belong to a 
+particular top-level menu item. Uses hover pseudo class in css to display
+dropdown list when mouse hovers over top-level item. Support for IE6 
+(no hover psuedo class) via LC_hoverable class for <li> tag for top-
+level item, which employs jQuery to handle behavior on mouseover.
+
+Inputs: 4 - (a) link and (b) target for anchor href in top level item,
+            (c) title for text wrapped by anchor tag in top level item.
+            (d) reference to array of arrays of sub-menu items.
+
 =item innerregister()
 
 This gets called in order to register a URL in the body of the document
@@ -129,6 +149,9 @@ The javascript is usually similar to "go
 
 =item utilityfunctions()
 
+Output from this routine is a number of javascript functions called by
+items in the inline menu, and in some cases items in the Main Menu page. 
+
 =item serverform()
 
 =item constspaceform()
@@ -159,7 +182,7 @@ use HTML::Entities();
 use Apache::lonwishlist();
 
 use vars qw(@desklines %category_names %category_members %category_positions 
-            $readdesk @primary_menu @secondary_menu);
+            $readdesk @primary_menu %primary_submenu @secondary_menu);
 
 my @inlineremote;
 
@@ -182,7 +205,7 @@ sub prep_menuitem {
 
 # primary_menu() evaluates @primary_menu and returns XHTML for the menu
 # that contains following links:
-# About, Message, Roles, Help, Logout
+# About, Message, Personal, Roles, Help, Logout
 # @primary_menu is filled within the BEGIN block of this module with 
 # entries from mydesk.tab
 sub primary_menu {
@@ -212,8 +235,33 @@ sub primary_menu {
         next if    $$menuitem[4]        eq 'courses'   ##'Roles' wanted
                 && !&Apache::loncommon::show_course(); ##
         
-            
-        if ($$menuitem[3] eq 'Help') { # special treatment for helplink
+        my $title = $menuitem->[3];
+        if (defined($primary_submenu{$title})) {
+            my ($link,$target);
+            if ($menuitem->[0] ne '') {
+                $link = $menuitem->[0];
+                $target = '_top';
+            } else {
+                $link = '#';
+            }
+            my @primsub;
+            if (ref($primary_submenu{$title}) eq 'ARRAY') {
+                foreach my $item (@{$primary_submenu{$title}}) {
+                    next if (($item->[2] eq 'wishlist') && (!$env{'user.adv'}));
+                    next if (($item->[2] eq 'reqcrs') && (!&check_for_rcrs()));
+                    next if ((($item->[2] eq 'portfolio') ||
+                             ($item->[2] eq 'blog')) &&
+                             (!&Apache::lonnet::usertools_access('','',$item->[2],
+                                                           undef,'tools')));
+                    push(@primsub,$item);
+                }
+                if (@primsub > 0) {
+                    $menu .= &create_submenu($link,$target,$title,\@primsub);
+                } elsif ($link) {
+                    $menu .= '<li><a href="'.$link.'" target="'.$target.'">'.&mt($title).'</a></li>';
+                }
+            }
+        } elsif ($$menuitem[3] eq 'Help') { # special treatment for helplink
             if ($public) {
                 my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
                 my $defdom = &Apache::lonnet::default_login_domain();
@@ -269,6 +317,7 @@ sub secondary_menu {
                                                ? "/$env{'request.course.sec'}"
                                                : '');
     my $canedit       = &Apache::lonnet::allowed('mdc', $env{'request.course.id'});
+    my $canviewroster = $env{'course.'.$env{'request.course.id'}.'.student_classlist_view'};
     my $canviewgrps   = &Apache::lonnet::allowed('vcg', $crs_sec); 
     my $canmodifyuser = &Apache::lonnet::allowed('cst', $crs_sec); 
     my $canviewwnew   = &Apache::lonnet::allowed('whn', $crs_sec); 
@@ -297,7 +346,7 @@ sub secondary_menu {
         next if    $$menuitem[4]   eq 'cst'
                 && !$canmodifyuser;
         next if    $$menuitem[4]   eq 'ncst'
-                && $canmodifyuser;
+                && ($canmodifyuser || !$canviewroster);
         next if    $$menuitem[4]   eq 'mgr'
                 && !$canmgr;
         next if    $$menuitem[4]   eq 'nmgr'
@@ -344,12 +393,45 @@ sub secondary_menu {
     }
     $menu =~ s/\[uname\]/$$author{user}/g;
     $menu =~ s/\[udom\]/$$author{dom}/g;
+    if ($menu) {
+        $menu = "<ul id=\"LC_secondary_menu\">$menu</ul>";
+    }
+    return $menu;
+}
 
-    return "<ul id=\"LC_secondary_menu\">$menu</ul>";
+sub create_submenu {
+    my ($link,$target,$title,$submenu) = @_;
+    return unless (ref($submenu) eq 'ARRAY');
+    my $disptarget;
+    if ($target ne '') {
+        $disptarget = ' target="'.$target.'"';
+    }
+    my $menu = '<li class="LC_hoverable">'.
+               '<a href="'.$link.'"'.$disptarget.'>'.
+               '<span class="LC_nobreak">'.&mt($title).
+               '<span class="LC_fontsize_small" style="font-weight:normal;">'.
+               ' &#9660;</span></span></a>'.
+               '<ul>';
+    my $count = 0;
+    my $numsub = scalar(@{$submenu});
+    foreach my $item (@{$submenu}) {
+        $count ++;
+        if (ref($item) eq 'ARRAY') {
+            my $borderbot;
+            if ($count == $numsub) {
+                $borderbot = 'border-bottom:1px solid black;';
+            }
+            $menu .= '<li style="margin:0;padding:0;'.
+                     $borderbot.'"><a href="'.$item->[0].'">'.
+                     &mt($item->[1]).'</a></li>';
+        }
+    }
+    $menu .= '</ul></li>';
+    return $menu;
 }
 
 sub innerregister {
-    my ($forcereg,$bread_crumbs) = @_;
+    my ($forcereg,$bread_crumbs,$group) = @_;
     my $const_space = ($env{'request.state'} eq 'construct');
     my $is_const_dir = 0;
 
@@ -359,7 +441,12 @@ sub innerregister {
 
     undef(@inlineremote);
 
-    my $resurl; 
+    my $resurl;
+
+    if ($env{'request.course.id'} && $env{'request.symb'} eq '') {
+        $resurl = $env{'request.noversionuri'};
+    }
+ 
     if ( $env{'request.symb'} && $env{'request.course.id'} ) {
 
         (my $mapurl, my $rid, $resurl) = &Apache::lonnet::decode_symb(&Apache::lonnet::symbread());
@@ -391,191 +478,92 @@ sub innerregister {
 
         &Apache::lonhtmlcommon::clear_breadcrumbs();
         &Apache::lonhtmlcommon::add_breadcrumb(@crumbs);
-    }elsif (! $const_space){
+    } elsif (! $const_space){
         #a situation when we're looking at a resource outside of context of a 
         #course or construction space (e.g. with cumulative rights)
         &Apache::lonhtmlcommon::clear_breadcrumbs();
-        &Apache::lonhtmlcommon::add_breadcrumb({text => 'View Resource'});
+        unless ($env{'request.noversionuri'} =~ m{^/adm/$match_domain/$match_username/aboutme$}) {
+            &Apache::lonhtmlcommon::add_breadcrumb({text => 'View Resource'});
+        }
     }
 # =============================================================================
 # ============================ This is for URLs that actually can be registered
     return '' unless ( ($env{'request.noversionuri'}!~m{^/(res/)*adm/}) 
                        || $forcereg );
+    my ($cdom,$cnum,%perms,$cfile,$switchserver,$home,$forceedit,
+        $forceview,$editbutton);
+    if ($env{'request.noversionuri'} =~ m{^/adm/($match_domain)/($match_username)/aboutme$}) {
+        ($cfile,$home,$switchserver,$forceedit,$forceview) =
+            &Apache::lonnet::can_edit_resource($env{'request.noversionuri'},$cnum,$cdom,
+                &Apache::lonnet::clutter($resurl),$env{'request.symb'},$group);
+        if (($cfile) && ($home ne '') && ($home ne 'no_host')) {
+            $editbutton = &get_editbutton($cfile,$home,$switchserver,
+                                          $forceedit,$forceview,$forcereg);
+        }
+    } elsif ($env{'request.role'} !~/^(aa|ca|au)/) {
+        $editbutton = &prepare_functions($resurl,$forcereg,$group);
+    }
+    if ($editbutton eq '') {
+        &clear(6,1);
+    }
 
-# -- This applies to homework problems for users with grading privileges
-	my $crs='/'.$env{'request.course.id'};
-	if ($env{'request.course.sec'}) {
-	    $crs.='_'.$env{'request.course.sec'};
-	}
-	$crs=~s/\_/\//g;
-
-        my $hwkadd='';
-        if ($env{'request.symb'} ne '' &&
-	    $env{'request.filename'}=~/$LONCAPA::assess_re/) {
-	    if (&Apache::lonnet::allowed('mgr',$crs)) {
-		$hwkadd.=&switch('','',7,2,'pgrd.png','Content Grades','grades[_4]',
-                       "gocmd('/adm/grades','gradingmenu')",
-                       'Content Grades');
-            } elsif (&Apache::lonnet::allowed('vgr',$crs)) {
-		$hwkadd.=&switch('','',7,2,'subm.png','Content Submissions','missions[_1]',
-                       "gocmd('/adm/grades','submission')",
-		       'Content Submissions');
-            }
-	}
-	if ($env{'request.symb'} ne '' &&
-	    &Apache::lonnet::allowed('opa',$crs)) {
-	    $hwkadd.=&switch('','',7,3,'pparm.png','Content Settings','parms[_2]',
-			     "gocmd('/adm/parmset','set')",
-			     'Content Settings');
-	}
-# -- End Homework
-        ###
-        ### Determine whether or not to display the 'cstr' button for this
-        ### resource
-        ###
-        my $editbutton = '';
-        my $noeditbutton = 1;
-        my ($cnum,$cdom);
-        if ($env{'request.course.id'}) {
-            $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
-            $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-        }
-        if ($env{'user.author'}) {
-            if ($env{'request.role'}=~/^(aa|ca|au)/) {
-#
-# We have the role of an author
-#
-                # Set defaults for authors
-                my ($top,$bottom) = ('con-','struct');
-                my $action = "go('/priv/".$env{'user.domain'}.'/'.$env{'user.name'}."');";
-                my $cadom  = $env{'request.role.domain'};
-                my $caname = $env{'user.name'};
-                my $desc = "Enter my construction space";
-                # Set defaults for co-authors
-                if ($env{'request.role'} =~ /^ca/) { 
-                    ($cadom,$caname)=($env{'request.role'}=~/($match_domain)\/($match_username)$/);
-                    ($top,$bottom) = ('co con-','struct');
-                    $action = "go('/priv/".$cadom.'/'.$caname."');";
-                    $desc = "Enter construction space as co-author";
-                } elsif ($env{'request.role'} =~ /^aa/) {
-                    ($cadom,$caname)=($env{'request.role'}=~/($match_domain)\/($match_username)$/);
-                    ($top,$bottom) = ('co con-','struct');
-                    $action = "go('/priv/".$cadom.'/'.$caname."');";
-                    $desc = "Enter construction space as assistant co-author";
-                }
-                # Check that we are on the correct machine
-                my $home = &Apache::lonnet::homeserver($caname,$cadom);
-		my $allowed=0;
-		my @ids=&Apache::lonnet::current_machine_ids();
-		foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
-		if (!$allowed) {
-		    $editbutton=&switch('','',6,1,$top,,$bottom,$action,$desc);
-                    $noeditbutton = 0;
-                }
-            }
 #
-# We are an author for some stuff, but currently do not have the role of author.
-# Figure out if we have authoring privileges for the resource we are looking at.
-# This should maybe become a privilege check in lonnet
-#
-            ##
-            ## Determine if user can edit url.
-            ##
-            my $cfile='';
-            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)) {
-                    $uploaded = &is_course_upload($file,$cnum,$cdom);
-                }
-                if (!$uploaded) {
-
-                    $file=~s{^(priv/$match_domain/$match_username)}{/$1};
-                    $file=~s{^($match_domain/$match_username)}{/priv/$1};
-
-                    # Check that the user has permission to edit this resource
-                    my $setpriv = 1;
-                    ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$setpriv);
-                    if (defined($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 || $switchserver) && !$const_space) {
-                my $nocrsedit;
-                # Suppress display where CC has switched to student role.
-                if ($env{'request.course.id'}) {
-                    unless(&Apache::lonnet::allowed('mdc',
-                                                    $env{'request.course.id'})) {
-                        $nocrsedit = 1;
-                    }
-                }
-                if ($nocrsedit) {
-                    $editbutton=&clear(6,1);
-                } else {
-                    my $bot = "go('$cfile')";
-                    if ($switchserver) {
-                        if ( $env{'request.symb'} && $env{'request.course.id'} ) {
-                            $cfile = '/adm/switchserver?otherserver='.$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.png','Edit','resource[_2]',
-                        $bot,"Edit this resource");
-                    $noeditbutton = 0;
-                }
-            } elsif ($editbutton eq '') {
-                $editbutton=&clear(6,1);
-            }
-        }
-        if (($noeditbutton) && ($env{'request.filename'})) { 
-            if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
-                my $file=&Apache::lonnet::declutter($env{'request.filename'});
-                if (defined($cnum) && defined($cdom)) {
-                    if (&is_course_upload($file,$cnum,$cdom)) {
-                        my $cfile = &edit_course_upload($file,$cnum,$cdom);
-                        if ($cfile) {
-                            $editbutton=&switch
-                                        ('','',6,1,'pcstr.png','Edit',
-                                         'resource[_2]',"go('".$cfile."');",
-                                         'Edit this resource');
-                        }
-                    }
-                }
+# This applies in course context
+#
+    if ($env{'request.course.id'}) {
+        $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+        $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+        $perms{'mdc'} = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
+        my @privs;
+        if ($env{'request.symb'} ne '') {
+             if ($env{'request.filename'}=~/$LONCAPA::assess_re/) {
+                 push(@privs,('mgr','vgr'));
+             }
+             push(@privs,'opa');
+        }
+        foreach my $priv (@privs) {
+            $perms{$priv} = &Apache::lonnet::allowed($priv,$env{'request.course.id'});
+            if (!$perms{$priv} && $env{'request.course.sec'} ne '') {
+                $perms{$priv} = 
+                    &Apache::lonnet::allowed($priv,"$env{'request.course.id'}/$env{'request.course.sec'}");
             }
         }
-        if ($env{'request.course.id'}) {
-            if ($resurl eq "public/$cdom/$cnum/syllabus") {
-                if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ /\w/) {
-                    if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
-                        $editbutton=&switch('','',6,1,'pcstr.png','Edit',
-                                            'resource[_2]',
-                                            "go('/adm/courseprefs?phase=display&actions=courseinfo')",
-                                            'Edit this resource');
-                    }
-                }
-            }
+#
+# Determine whether or not to show Grades and Submissions buttons
+#
+        if ($env{'request.symb'} ne '' &&
+            $env{'request.filename'}=~/$LONCAPA::assess_re/) {
+            if ($perms{'mgr'}) {
+                &switch('','',7,2,'pgrd.png','Content Grades','grades[_4]',
+                        "gocmd('/adm/grades','gradingmenu')",
+                        'Content Grades');
+            } elsif ($perms{'vgr'}) {
+                &switch('','',7,2,'subm.png','Content Submissions','missions[_1]',
+                        "gocmd('/adm/grades','submission')",
+                        'Content Submissions');
+             }
+        }
+        if (($env{'request.symb'} ne '') && ($perms{'opa'})) {
+            &switch('','',7,3,'pparm.png','Content Settings','parms[_2]',
+                    "gocmd('/adm/parmset','set')",
+                    'Content Settings');
+	}
+# End grades/submissions check 
+
+#
+# This applies to items inside a folder/page modifiable in the course. 
+#
+        if (($env{'request.symb'}=~/^uploaded/) && ($perms{'mdc'})) {
+            &switch('','',7,4,'docs-22x22.png','Folder/Page Content','parms[_2]',
+                    "gocmd('/adm/coursedocs','direct')",
+                    'Folder/Page Content');
         }
-        ###
-        ###
+# End modifiable folder/page container check
+    }
+# End course context
+
 # Prepare the rest of the buttons
-        my $menuitems;
+        my ($menuitems,$got_prt,$got_wishlist);
         if ($const_space) {
 #
 # We are in construction space
@@ -611,7 +599,7 @@ ENDMENUITEMS
         } elsif ( defined($env{'request.course.id'}) && 
 		 $env{'request.symb'} ne '' ) {
 #
-# We are in a course and looking at a registred URL
+# We are in a course and looking at a registered URL
 # Should probably be in mydesk.tab
 #
 	    $menuitems=(<<ENDMENUITEMS);
@@ -623,12 +611,15 @@ c&8&1
 c&8&2
 s&8&3&prt.png&Print&printout[_1]&gopost('/adm/printout',currentURL)&Prepare a printable document
 ENDMENUITEMS
-            if (&Apache::lonnet::allowed('bre', $env{'request.course.id'}) eq 'F' && $env{'request.uri'} =~ /^\/res/) {
+            $got_prt = 1;
+            if (($env{'user.adv'}) && ($env{'request.uri'} =~ /^\/res/)
+                && (!$env{'request.enc'})) {
                 # wishlist is only available for users with access to resource-pool
                 # and links can only be set for resources within the resource-pool
                 $menuitems .= (<<ENDMENUITEMS);
-s&9&1&wishlist-link.png&Wishlist&wishlistlink[_2]&set_wishlistlink()&Set a link for this resource to wishlist&&1
+s&9&1&wishlist-link.png&Stored Links&wishlistlink[_2]&set_wishlistlink()&Save a link for this resource in your personal Stored Links repository&&1
 ENDMENUITEMS
+                $got_wishlist = 1;
             }
 
 my $currentURL = &Apache::loncommon::get_symb();
@@ -644,28 +635,38 @@ $menuitems.="&Notes&&annotate()&";
 $menuitems.="Make notes and annotations about this resource&&1\n";
 
             unless ($env{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme|viewclasslist|portfolio)(\?|$)/) {
-		if ((!$env{'request.enc'}) && ($env{'request.noversionuri'} !~ m{^/adm/wrapper/ext/})) {
+		if ((!$env{'request.enc'}) && ($env{'request.noversionuri'} !~ m{^/adm/wrapper/ext/}) && ($env{'request.noversionuri'} !~ m{^/uploaded/$match_domain/$match_courseid/docs/})) {
 		    $menuitems.=(<<ENDREALRES);
 s&6&3&catalog.png&Info&info[_1]&catalog_info()&Show Metadata
 ENDREALRES
                 }
-	        $menuitems.=(<<ENDREALRES);
+                unless ($env{'request.noversionuri'} =~ m{^/uploaded/$match_domain/$match_courseid/docs/}) {
+                    $menuitems.=(<<ENDREALRES);
 s&8&1&eval.png&Evaluate&this[_1]&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
+ENDREALRES
+                }
+                $menuitems.=(<<ENDREALRES);
 s&8&2&fdbk.png&Communicate&discuss[_1]&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
 ENDREALRES
 	    }
         }
 	if ($env{'request.uri'} =~ /^\/res/) {
-	    $menuitems .= (<<ENDMENUITEMS);
+            unless ($got_prt) {
+	        $menuitems .= (<<ENDMENUITEMS);
 s&8&3&prt.png&Print&printout[_1]&gopost('/adm/printout',currentURL)&Prepare a printable document
 ENDMENUITEMS
-            if (&Apache::lonnet::allowed('bre', $env{'request.course.id'}) eq 'F') {
-                # wishlist is only available for users with access to resource-pool
-                $menuitems .= (<<ENDMENUITEMS);
-s&9&1&wishlist-link.png&Wishlist&wishlistlink[_2]&set_wishlistlink()&Set a link for this resource to wishlist&&1
-ENDMENUITEMS
+                $got_prt = 1;
             }
-	}
+            unless ($got_wishlist) {
+                if (($env{'user.adv'}) && (!$env{'request.enc'})) {
+                    # wishlist is only available for users with access to resource-pool
+                    $menuitems .= (<<ENDMENUITEMS);
+s&9&1&wishlist-link.png&Stored Links&wishlistlink[_2]&set_wishlistlink()&Save a link for this resource in your personal Stored Links repository&&1
+ENDMENUITEMS
+                    $got_wishlist = 1;
+                }
+	    }
+        }
         my $buttons='';
         foreach (split(/\n/,$menuitems)) {
 	    my ($command,@rest)=split(/\&/,$_);
@@ -694,9 +695,18 @@ ENDMENUITEMS
             &Apache::lonhtmlcommon::add_breadcrumb_tool(
                 'navigation', @inlineremote[21,23]);
 
-        if(hidden_button_check() ne 'yes') {
+        my $countdown = &countdown_timer();
+        if (&hidden_button_check() eq 'yes') {
+            if ($countdown) {
+                &Apache::lonhtmlcommon::add_breadcrumb_tool('tools',$countdown);
+            }
+        } else {
+            my @tools = @inlineremote[93,91,81,82,83];
+            if ($countdown) {
+                unshift(@tools,$countdown);
+            }
             &Apache::lonhtmlcommon::add_breadcrumb_tool(
-                'tools', @inlineremote[93,91,81,82,83]);
+                'tools',@tools);
 
             #publish button in construction space
             if ($env{'request.state'} eq 'construct'){
@@ -706,11 +716,7 @@ ENDMENUITEMS
                 &Apache::lonhtmlcommon::add_breadcrumb_tool(
                      'tools', $inlineremote[63]);
             }
-            
-            unless ($env{'request.noversionuri'}=~ m{^/adm/(navmaps|viewclasslist)(\?|$)}) {
-                &Apache::lonhtmlcommon::add_breadcrumb_tool(
-                    'advtools', @inlineremote[61,71,72,73,92]);
-            }
+            &advtools_crumbs(@inlineremote);
         }
     }
 
@@ -719,40 +725,180 @@ ENDMENUITEMS
            . &Apache::lonhtmlcommon::scripttag('', 'end');
 }
 
-sub is_course_upload {
-    my ($file,$cnum,$cdom) = @_;
-    my $uploadpath = &LONCAPA::propath($cdom,$cnum);
-    $uploadpath =~ s{^\/}{};
-    if (($file =~ m{^\Q$uploadpath\E/userfiles/docs/}) ||
-        ($file =~ m{^userfiles/\Q$cdom\E/\Q$cnum\E/docs/})) {
+sub get_editbutton {
+    my ($cfile,$home,$switchserver,$forceedit,$forceview,$forcereg) = @_;
+    my $jscall = 
+        &Apache::lonhtmlcommon::jump_to_editres($cfile,$home,$switchserver,
+                                                $forceedit,$forcereg,$env{'request.symb'});
+    if ($jscall) {
+        my $icon = 'pcstr.png';
+        my $label = 'Edit';
+        if ($forceview) {
+            $icon = 'tolastloc.png';
+            $label = 'Exit Editing';
+        }
+        &switch('','',6,1,$icon,$label,'resource[_2]',
+                $jscall,"Edit this resource");
         return 1;
     }
     return;
 }
 
-sub edit_course_upload {
-    my ($file,$cnum,$cdom) = @_;
-    my $cfile;
-    if ($file =~/\.(htm|html|css|js|txt)$/) {
-        my $ext = $1;
-        my $url = &Apache::lonnet::hreflocation('',$file);
-        my $home = &Apache::lonnet::homeserver($cnum,$cdom);
-        my @ids=&Apache::lonnet::current_machine_ids();
-        my $dest;
-        if ($home && grep(/^\Q$home\E$/,@ids)) {
-            $dest = $url.'?forceedit=1';
-        } else {
-            unless (&Apache::lonnet::get_locks()) {
-                $dest = '/adm/switchserver?otherserver='.
-                        $home.'&role='.$env{'request.role'}.
-                        '&url='.$url.'&forceedit=1';
+sub prepare_functions {
+    my ($resurl,$forcereg,$group,$bread_crumbs,$advtools) = @_;
+    unless ($env{'request.registered'}) {
+        undef(@inlineremote);
+    }
+    my ($cdom,$cnum,%perms,$cfile,$switchserver,$home,$forceedit,
+        $forceview);
+
+    if ($env{'request.course.id'}) {
+        $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+        $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+        $perms{'mdc'} = &Apache::lonnet::allowed('mdc',$env{'request.course.id'});
+    }
+
+    my $editbutton = '';
+#
+# Determine whether or not to display 'Edit' icon/button
+#
+    if ($resurl =~ m{^/?adm/($match_domain)/($match_username)/aboutme$}) {
+#
+# This applies to a user's own about me page
+#
+        my ($sdom,$sname) = ($1,$2);
+        my $file=&Apache::lonnet::declutter($env{'request.filename'});
+        if (($sdom eq $env{'user.domain'}) && ($sname eq $env{'user.name'})) {
+            ($cfile,$home,$switchserver,$forceedit,$forceview) =
+                &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,
+                    &Apache::lonnet::clutter($resurl),$env{'request.symb'},$group);
+            $editbutton = &get_editbutton($cfile,$env{'user.home'},$switchserver,
+                                          $forceedit,$forceview,$forcereg);
+        }
+    } elsif ((!$editbutton) && (!$env{'request.course.id'}) &&
+             ($env{'user.author'}) && ($env{'request.filename'}) &&
+             ($env{'request.role'} !~/^(aa|ca|au)/)) {
+#
+# Currently do not have the role of author or co-author.
+# Do we have authoring privileges for the resource?
+#
+        my $file=&Apache::lonnet::declutter($env{'request.filename'});
+        ($cfile,$home,$switchserver,$forceedit,$forceview) =
+            &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,
+                &Apache::lonnet::clutter($resurl),$env{'request.symb'},$group);
+        # Turn the button on or off
+        if (($cfile) && ($home ne '') && ($home ne 'no_host')) {
+            $editbutton = &get_editbutton($cfile,$home,$switchserver,
+                                          $forceedit,$forceview,$forcereg);
+        }
+    } elsif ($env{'request.course.id'}) {
+#
+# This applies in course context
+#
+        if (($resurl eq "/public/$cdom/$cnum/syllabus") && ($perms{'mdc'})) {
+            if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ /\w/) {
+                &switch('','',6,1,'pcstr.png','Edit',
+                        'resource[_2]',
+                        "go('/adm/courseprefs?phase=display&actions=courseinfo')",
+                        'Edit this resource');
+                $editbutton = 1;
+            } else {
+                $cfile = $resurl;
+                $home = &Apache::lonnet::homeserver($cnum,$cdom);
+                if ($env{'form.forceedit'}) {
+                    $forceview = 1;
+                } else {
+                    $forceedit = 1;
+                }
+                $editbutton = &get_editbutton($cfile,$home,$switchserver,
+                                              $forceedit,$forceview,$forcereg);
+            }
+        } elsif ($resurl !~ m{^adm/($match_domain)/($match_username)/aboutme$}) {
+            if ($env{'request.filename'}) {
+                my $file=&Apache::lonnet::declutter($env{'request.filename'});
+                ($cfile,$home,$switchserver,$forceedit,$forceview) =
+                    &Apache::lonnet::can_edit_resource($file,$cnum,$cdom,
+                        &Apache::lonnet::clutter($resurl),$env{'request.symb'},$group);
+                if ($cfile ne '') {
+                    $editbutton = &get_editbutton($cfile,$home,$switchserver,
+                                                  $forceedit,$forceview,$forcereg);
+                }
             }
         }
-        if ($dest) {
-            $cfile = &HTML::Entities::encode($dest,'"<>&');
+    }
+# End determination of 'Edit' icon/button display
+
+# This applies to about me page for users in a course
+    if ($env{'request.course.id'}) {
+        if ($resurl =~ m{^adm/($match_domain)/($match_username)/aboutme$}) {
+            my ($sdom,$sname) = ($1,$2);
+            unless (&Apache::lonnet::is_course($sdom,$sname)) {
+                &switch('','',6,4,'mail-message-new-22x22.png','Message to user',
+                        '',
+                        "go('/adm/email?compose=individual&recname=$sname&recdom=$sdom')",
+                            'Send message to specific user');
+            }
+            if (&Apache::lonnet::in_course($sdom,$sname,$cdom,$cnum)) {
+                foreach my $priv ('vsa','vgr','srm') {
+                    $perms{$priv} = &Apache::lonnet::allowed($priv,$env{'request.course.id'});
+                    if (!$perms{$priv} && $env{'request.course.sec'} ne '') {
+                        $perms{$priv} =
+                            &Apache::lonnet::allowed($priv,"$env{'request.course.id'}/$env{'request.course.sec'}");
+                    }
+                }
+                if ($perms{'vsa'}) {
+                    &switch('','',6,5,'trck-22x22.png','Activity',
+                            '',
+                            "go('/adm/trackstudent?selected_student=$sname:$sdom')",
+                            'View recent activity by this person');
+                }
+                if ($perms{'vgr'}) {
+                    &switch('','',6,6,'rsrv-22x22.png','Reservations',
+                            '',
+                            "go('/adm/slotrequest?command=showresv&origin=aboutme&uname=$sname&udom=$sdom')",
+                            'Slot reservation history');
+                }
+                if ($perms{'srm'}) {
+                    &switch('','',6,7,'contact-new-22x22.png','Records',
+                            '',
+                            "go('/adm/email?recordftf=retrieve&recname=$sname&recdom=$sdom')",
+                            'Add records');
+                }
+            }
+        }
+    }
+
+# End checking for items for about me page for users in a course
+ 
+    if ($env{'request.registered'}) {
+        return $editbutton;
+    } else {
+        if (ref($bread_crumbs) eq 'ARRAY') {
+            if (@inlineremote > 0) {
+                if (ref($advtools) eq 'ARRAY') {
+                    @{$advtools} = @inlineremote;
+                }
+            }
+            return;
+        } elsif (@inlineremote > 0) {
+            &Apache::lonhtmlcommon::clear_breadcrumb_tools();
+            &advtools_crumbs(@inlineremote);
+            return   &Apache::lonhtmlcommon::scripttag('', 'start')
+                   . &Apache::lonhtmlcommon::breadcrumbs(undef,undef,0)
+                   . &Apache::lonhtmlcommon::scripttag('', 'end');
         }
     }
-    return $cfile;
+}
+
+sub advtools_crumbs {
+    my @funcs = @_;
+    if ($env{'request.noversionuri'} =~ m{^/adm/$match_domain/$match_username/aboutme$}) {
+        &Apache::lonhtmlcommon::add_breadcrumb_tool(
+            'advtools', @funcs[61,64,65,66,67,74]);
+    } elsif ($env{'request.noversionuri'} !~ m{^/adm/(navmaps|viewclasslist)(\?|$)}) {
+        &Apache::lonhtmlcommon::add_breadcrumb_tool(
+            'advtools', @funcs[61,71,72,73,74,92]);
+    }
 }
 
 # ================================================================== Raw Config
@@ -807,9 +953,19 @@ sub switch {
 	   }
     } else {
 # Inline Menu
-      $inlineremote[$idx]=
+        my @tools = (93,91,81,82,83);
+        unless ($env{'request.state'} eq 'construct') {
+            push(@tools,63);
+        }
+        if (($env{'environment.icons'} eq 'iconsonly') && 
+            (grep(/^$idx$/,@tools))) {
+            $inlineremote[$idx] =
+        '<a title="'.$desc.'" class="LC_menubuttons_link" href="javascript:'.$act.';">'.$pic.'</a>';
+        } else {
+            $inlineremote[$idx] =
        '<a title="'.$desc.'" class="LC_menubuttons_link" href="javascript:'.$act.';">'.$pic.
        '<span class="LC_menubuttons_inline_text">'.$top.'&nbsp;</span></a>';
+        }
     }
     return '';
 }
@@ -1081,13 +1237,13 @@ function showCourseID() {
     document.getElementById('dccid').style.display='block';
     document.getElementById('dccid').style.textAlign='left';
     document.getElementById('dccid').style.textFace='normal';
-    document.getElementById('dccidtext').innerHTML ='<a href="javascript:hideCourseID();">$lt{'less'}</a>';
+    document.getElementById('dccidtext').innerHTML ='<a href="javascript:hideCourseID();" class="LC_menubuttons_link">$lt{'less'}</a>';
     return;
 }
 
 function hideCourseID() {
     document.getElementById('dccid').style.display='none';
-    document.getElementById('dccidtext').innerHTML ='<a href="javascript:showCourseID()">$lt{'more'}</a>';
+    document.getElementById('dccidtext').innerHTML ='<a href="javascript:showCourseID()" class="LC_menubuttons_link">$lt{'more'}</a>';
     return;
 }
 
@@ -1095,6 +1251,27 @@ END
 
 }
 
+sub countdown_toggle_js {
+    return <<"END";
+
+function toggleCountdown() {
+    var countdownid = document.getElementById('duedatecountdown');
+    var currstyle = countdownid.style.display;
+    if (currstyle == 'inline') {
+        countdownid.style.display = 'none';
+        document.getElementById('ddcountcollapse').innerHTML='';
+        document.getElementById('ddcountexpand').innerHTML='&#9668;&nbsp;';
+    } else {
+        countdownid.style.display = 'inline';
+        document.getElementById('ddcountcollapse').innerHTML='&#9658;&nbsp;';
+        document.getElementById('ddcountexpand').innerHTML='';
+    }
+    return;
+}
+
+END
+}
+
 sub utilityfunctions {
     my $currenturl=&Apache::lonnet::clutter(&Apache::lonnet::fixversion((split(/\?/,$env{'request.noversionuri'}))[0]));
     if ($currenturl =~ m{^/adm/wrapper/ext/}
@@ -1123,34 +1300,22 @@ sub utilityfunctions {
     my $end_page_annotate = 
         &Apache::loncommon::end_page({'js_ready' => 1});
 
-    my $confirm_switch = &mt("Editing requires switching to the resource's home server.").'\n'.
-                         &mt('Switch server?');
+    my $jumptores = &Apache::lonhtmlcommon::javascript_jumpto_resource();
+
+    my $esc_url=&escape($currenturl);
+    my $esc_symb=&escape($currentsymb);
 
+    my $countdown = &countdown_toggle_js();
 
 return (<<ENDUTILITY)
 
-    var currentURL="$currenturl";
-    var reloadURL="$currenturl";
-    var currentSymb="$currentsymb";
+    var currentURL=unescape("$esc_url");
+    var reloadURL=unescape("$esc_url");
+    var currentSymb=unescape("$esc_symb");
 
 $dc_popup_cid
 
-function go(url) {
-   if (url!='' && url!= null) {
-       currentURL = null;
-       currentSymb= null;
-       window.location.href=url;
-   }
-}
-
-function need_switchserver(url) {
-    if (url!='' && url!= null) {
-        if (confirm("$confirm_switch")) {
-            go(url); 
-        }
-    }
-    return;
-}
+$jumptores
 
 function gopost(url,postdata) {
    if (url!='') {
@@ -1224,7 +1389,7 @@ function golist(url) {
 
 
 function catalog_info() {
-   loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
+   openMyModal(window.location.pathname+'.meta',500,400,'yes');
 }
 
 function chat_win() {
@@ -1250,19 +1415,7 @@ function annotate() {
    annotator.document.close();
 }
 
-function set_wishlistlink(title, path) {
-    if (!title) {
-        title = document.title;
-        title = title.replace(/^LON-CAPA /,'');
-    }
-    if (!path) {
-        path = location.pathname;
-    }
-    Win = window.open('/adm/wishlist?mode=newLink&setTitle='+title+'&setPath='+path,
-                      'wishlistNewLink','width=560,height=350,scrollbars=0');
-}
-
-function open_Wishlist_Import(rat) {
+function open_StoredLinks_Import(rat) {
    var newWin;
    if (rat) {
        newWin = window.open('/adm/wishlist?inhibitmenu=yes&mode=import&rat='+rat,
@@ -1275,6 +1428,22 @@ function open_Wishlist_Import(rat) {
    newWin.focus();
 }
 
+(function (\$) {
+  \$(document).ready(function () {
+    \$.single=function(a){return function(b){a[0]=b;return a}}(\$([1]));
+    /*\@cc_on
+      if (!window.XMLHttpRequest) {
+        \$('.LC_hoverable').each(function () {
+          this.attachEvent('onmouseenter', function (evt) { \$.single(evt.srcElement).addClass('hover'); });
+          this.attachEvent('onmouseleave', function (evt) { \$.single(evt.srcElement).removeClass('hover'); });
+        });
+      }
+    \@*/
+  });
+}(jQuery));
+
+$countdown
+
 ENDUTILITY
 }
 
@@ -1330,8 +1499,22 @@ sub roles_selector {
     } else {
         $ccrole = 'cc';
     }
-    my $priv;
+    my ($priv,$gotsymb,$destsymb);
     my $destinationurl = $ENV{'REQUEST_URI'};
+    if ($destinationurl =~ /\?symb=/) {
+        $gotsymb = 1;
+    } elsif ($destinationurl =~ m{^/enc/}) {
+        my $plainurl = &Apache::lonenc::unencrypted($destinationurl);
+        if ($plainurl =~ /\?symb=/) {
+            $gotsymb = 1;
+        }
+    }
+    unless ($gotsymb) {
+        $destsymb = &Apache::lonnet::symbread();
+        if ($destsymb ne '') {
+            $destsymb = &Apache::lonenc::check_encrypt($destsymb);
+        }
+    }
     my $reqprivs = &required_privs();
     if (ref($reqprivs) eq 'HASH') {
         my $destination = $destinationurl;
@@ -1419,7 +1602,12 @@ sub roles_selector {
                 $role_selector .= "\n".'<option value="'.$role.'">'.&Apache::lonnet::plaintext($role).'</option>'; 
             }
         }
-        $role_selector .= '</select>'."\n".
+        $role_selector .= '</select>'."\n";
+        if ($destsymb ne '') {
+            $role_selector .= '<input type="hidden" name="destsymb" value="'.
+                              &HTML::Entities::encode($destsymb).'" />'."\n";
+        }
+        $role_selector .=
                '<input type="hidden" name="destinationurl" value="'.
                &HTML::Entities::encode($destinationurl).'" />'."\n".
                '<input type="hidden" name="gotorole" value="1" />'."\n".
@@ -1662,15 +1850,84 @@ sub required_privs {
              '/adm/populate'     => 'cst',
              '/adm/trackstudent' => 'vsa',
              '/adm/statistics'   => 'vgr',
+             '/adm/setblock'     => 'dcm',
+             '/adm/coursedocs'   => 'mdc',
            };
     unless ($env{'course.'.$env{'request.course.id'}.'.grading'} eq 'spreadsheet') {
-        $privs->{'/adm/classcalc'}   => 'vgr',
-        $privs->{'/adm/assesscalc'}  => 'vgr',
-        $privs->{'/adm/studentcalc'} => 'vgr';
+        $privs->{'/adm/classcalc'}   = 'vgr',
+        $privs->{'/adm/assesscalc'}  = 'vgr',
+        $privs->{'/adm/studentcalc'} = 'vgr';
     }
     return $privs;
 }
 
+sub countdown_timer {
+    if (($env{'request.course.id'}) && ($env{'request.symb'} ne '') &&
+        ($env{'request.filename'}=~/$LONCAPA::assess_re/)) {
+        my ($type,$hastimeleft,$slothastime);
+        my $now = time;
+        if ($env{'request.filename'} =~ /\.task$/) {
+            $type = 'Task';
+        } else {
+            $type = 'problem';
+        }
+        my ($status,$accessmsg,$slot_name,$slot) =
+            &Apache::lonhomework::check_slot_access('0',$type);
+        if ($slot_name ne '') {
+            if (ref($slot) eq 'HASH') {
+                if (($slot->{'starttime'} < $now) &&
+                    ($slot->{'endtime'} > $now)) {
+                    $slothastime = 1;
+                }
+            }
+        }
+        if ($status ne 'CAN_ANSWER') {
+            return;
+        }
+        my $duedate = &Apache::lonnet::EXT("resource.0.duedate");
+        my @interval=&Apache::lonnet::EXT("resource.0.interval");
+        my $hastimeleft;
+        if (@interval > 1) {
+            my $first_access=&Apache::lonnet::get_first_access($interval[1]);
+            if ($first_access > 0) {
+                if ($first_access+$interval[0] > time) {
+                    $hastimeleft = 1;
+                }
+            }
+        }
+        if (($duedate && $duedate > time) ||
+            (!$duedate && $hastimeleft) ||
+            ($slot_name ne '' && $slothastime)) {
+            my ($collapse,$expand,$alttxt,$title,$currdisp);
+            if ((@interval > 1 && $hastimeleft) ||
+                ($type eq 'Task' && $slothastime)) {
+                $currdisp = 'inline';
+                $collapse = '&#9658;&nbsp;';
+            } else {
+                $currdisp = 'none';
+                $expand = '&#9668;&nbsp;';
+            }
+            unless ($env{'environment.icons'} eq 'iconsonly') {
+                $alttxt = &mt('Timer');
+                $title = $alttxt.'&nbsp;';
+            }
+            my $desc = &mt('Countdown to due date/time');
+            return <<END;
+
+<a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
+<span id="ddcountcollapse" class="LC_menubuttons_inline_text">
+$collapse
+</span></a>
+<span id="duedatecountdown" class="LC_menubuttons_inline_text" style="display: $currdisp;"></span>
+<a href="javascript:toggleCountdown();" class="LC_menubuttons_link">
+<span id="ddcountexpand" class="LC_menubuttons_inline_text" >$expand</span>
+<img src="/res/adm/pages/timer.png" title="$desc" class="LC_icon" alt="$alttxt" /><span class="LC_menubuttons_inline_text">$title</span></a>
+END
+        }
+    }
+    return;
+}
+
 # ================================================================ Main Program
 
 BEGIN {
@@ -1689,6 +1946,9 @@ BEGIN {
                     } elsif ($configline=~/^prim\:/) {
                         my @entries = (split(/\:/, $configline))[1..5];
                         push @primary_menu, \@entries;
+                    } elsif ($configline=~/^primsub\:/) {
+                        my ($parent,@entries) = (split(/\:/, $configline))[1..4];
+                        push (@{$primary_submenu{$parent}},\@entries);
                     } elsif ($configline=~/^scnd\:/) {
                         my @entries = (split(/\:/, $configline))[1..5];
                         push @secondary_menu, \@entries;