--- loncom/interface/lonmenu.pm 2007/09/11 23:37:58 1.227 +++ loncom/interface/lonmenu.pm 2009/07/21 14:36:08 1.276 @@ -1,7 +1,7 @@ # The LearningOnline Network with CAPA # Routines to control the menu # -# $Id: lonmenu.pm,v 1.227 2007/09/11 23:37:58 albertel Exp $ +# $Id: lonmenu.pm,v 1.276 2009/07/21 14:36:08 droeschl Exp $ # # Copyright Michigan State University Board of Trustees # @@ -26,15 +26,107 @@ # http://www.lon-capa.org/ # # -# There are two parameters controlling the action of this module: -# -# browser.interface - if this is 'textual', it overrides the second parameter -# and goes to screen reader PDA mode +# There is one parameter controlling the action of this module: # # environment.remote - if this is 'on', the routines controll the remote -# control, otherwise they render the main window controls; ignored it -# browser.interface is 'textual' -# +# control, otherwise they render the main window controls; + +=head1 NAME + +Apache::lonmenu + +=head1 SYNOPSIS + +Coordinates the response to clicking an image. + +This is part of the LearningOnline Network with CAPA project +described at http://www.lon-capa.org. + +=head1 SUBROUTINES + +=over + +Little texts + +=item initlittle() + +=item menubuttons() + +This gets called at the top of the body section + +=item show_return_link() + +=item registerurl() + +This gets called in the header section + +=item innerregister() + +This gets called in order to register a URL, both with the Remote +and in the body of the document + +=item loadevents() + +=item unloadevents() + +=item startupremote() + +=item setflags() + +=item maincall() + +=item load_remote_msg() + +=item get_menu_name() + +=item reopenmenu() + +=item open() + +Open the menu + +=item clear() + +=item switch() + +Switch a button or create a link +Switch acts on the javascript that is executed when a button is clicked. +The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)". + +=item secondlevel() + +=item openmenu() + +=item inlinemenu() + +=item rawconfig() + +=item close() + +=item footer() + +=item utilityfunctions() + +=item serverform() + +=item constspaceform() + +=item get_nav_status() + +=item convert_menu_function() + +FIXME this needs to move into mydesktab and the other locations +the text is generated + +=item hidden_button_check() + +=item roles_selector() + +=item jump_to_role() + +=back + +=cut package Apache::lonmenu; @@ -51,18 +143,19 @@ use vars qw(@desklines %category_names % my @inlineremote; - - -# ================================================================ Little texts +# +# This routine returns a translated hash for the menu items in the top inline menu row +# Probably should be in mydesk.tab sub initlittle { return &Apache::lonlocal::texthash('ret' => 'Return to Last Location', 'nav' => 'Navigate Contents', 'main' => 'Main Menu', - 'roles' => ($env{'user.adv'}? - 'Roles':'Courses'), + 'roles' => (&Apache::loncommon::show_course()? + 'Courses':'Roles'), + 'other' => 'Other Roles', 'docs' => 'Edit Course', - 'exit' => 'Exit', + 'exit' => 'Logout', 'login' => 'Log In', 'launch' => 'Launch Remote Control', 'groups' => 'Groups', @@ -70,12 +163,12 @@ sub initlittle { ); } -# ============================= This gets called at the top of the body section - sub menubuttons { my $forcereg=shift; - my $registration=shift; my $titletable=shift; +# +# Early-out for pages that should not have a menu, triggered by query string "inhibitmenu=yes" +# &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, ['inhibitmenu']); if (($env{'form.inhibitmenu'} eq 'yes') || @@ -88,15 +181,24 @@ sub menubuttons { my $reloadlink=''; my $docs=''; my $groups=''; + my $roles=''.$lt{'roles'}.''; + my $role_selector; my $showgroups=0; + my ($cnum,$cdom); +# +# if the URL is hidden, symbs and the non-versioned version of the URL would be encrypted +# my $escurl=&escape(&Apache::lonenc::check_encrypt($env{'request.noversionuri'})); my $escsymb=&escape(&Apache::lonenc::check_encrypt($env{'request.symb'})); my $logo=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/minilogo.gif"); - $logo = 'LON-CAPA Logo'; + $logo = 'LON-CAPA Logo'; if ($env{'request.state'} eq 'construct') { +# +# We are in construction space +# if (($env{'request.noversionuri'} eq '') || (!defined($env{'request.noversionuri'}))) { my $returnurl = $env{'request.filename'}; $returnurl =~ s:^/home/([^/]+)/public_html/(.*)$:/priv/$1/$2:; @@ -104,88 +206,48 @@ sub menubuttons { } } if ($env{'request.course.id'}) { +# +# We are in a course +# + $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; + $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; my %coursegroups; my $viewgrps_permission = &Apache::lonnet::allowed('vcg',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')); if (!$viewgrps_permission) { - %coursegroups = &Apache::lonnet::get_active_groups($env{'user.domain'},$env{'user.name'},$env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'}); + %coursegroups = &Apache::lonnet::get_active_groups($env{'user.domain'},$env{'user.name'},$cdom,$cnum); } if ((keys(%coursegroups) > 0) || ($viewgrps_permission)) { $showgroups = 1; } + $role_selector = &roles_selector($cdom,$cnum); + if ($role_selector) { + $roles = ''.$role_selector.'  '.$lt{'other'}.''; + } } - if ($env{'browser.interface'} eq 'textual') { -# Textual display only - if ($env{'request.course.id'}) { - $navmaps=(<$lt{'nav'} -ENDNAV - if (($env{'request.noversionuri'}=~/^\/adm\//) && - ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) && - ($env{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) { - my $escreload=&escape('return:'); - $reloadlink=(<$lt{'ret'} -ENDRELOAD - } - if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) { - $docs=(<$lt{'docs'} -ENDDOCS - } - if ($showgroups) { - $groups =(<$lt{'groups'} -ENDGROUPS - } - } - my $form=&serverform(); - my $utility=&utilityfunctions(); - my $output=(< -// BEGIN LON-CAPA Internal -$utility - -
-$lt{'main'} -$reloadlink $navmaps $docs $groups -$lt{'roles'} -$lt{'exit'} -
-
- -$form -ENDMAINMENU - if ($registration) { $output.=&innerregister($forcereg); } - return $output."
"; - } elsif ($env{'environment.remote'} eq 'off') { + if ($env{'environment.remote'} eq 'off') { # Remote Control is switched off # figure out colors - my %lt=&initlittle(); + my %lt=&initlittle(); my $domain=&Apache::loncommon::determinedomain(); - my $function =&Apache::loncommon::get_users_function(); + my $function =&Apache::loncommon::get_users_function(); my $link=&Apache::loncommon::designparm($function.'.link',$domain); my $alink=&Apache::loncommon::designparm($function.'.alink',$domain); my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain); my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain); - if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { - return (< - - $logo - - - $lt{'login'} - - - - + + if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') { + return (< +
  • $logo
    • +
  • $lt{'login'}
    • + +
    ENDINLINEMENU } + $roles = ''.$lt{'roles'}.''; # Do we have a NAV link? if ($env{'request.course.id'}) { my $link='/adm/navmaps?postdata='.$escurl.'&postsymb='. @@ -194,54 +256,47 @@ ENDINLINEMENU $link="javascript:gonav('".$link."')"; } $navmaps=(<$lt{'nav'} +
  • $lt{'nav'}
    • ENDNAV -my $is_group = (&Apache::loncommon::course_type() eq 'Group'); + my $is_group = (&Apache::loncommon::course_type() eq 'Group'); if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) { my $text = ($is_group) ? $lt{'gdoc'} : $lt{'docs'}; $docs=(<$text +
  • $text
    • ENDDOCS } if ($showgroups) { $groups =(<$lt{'groups'} +
  • $lt{'groups'}
    • ENDGROUPS } - if ( - ($env{'request.noversionuri'}=~m[^/(res|public)/] && - $env{'request.symb'} eq '') - || - (($env{'request.noversionuri'}=~/^\/adm\//) && - ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) && - ($env{'request.noversionuri'}!~ - m[^/adm/.*/(smppg|bulletinboard|aboutme)($|\?)]) - ) - ) { + if (&show_return_link()) { my $escreload=&escape('return:'); $reloadlink=(<$lt{'ret'} +
  • $lt{'ret'}
    • ENDRELOAD } + if ($role_selector) { + #$roles = ''.$role_selector.''.$lt{'other'}.''; + $role_selector = '
  • '.$role_selector.'
    • '; + } } if (($env{'request.state'} eq 'construct') && ($env{'request.course.id'})) { my $escreload=&escape('return:'); $reloadlink=(<$lt{'ret'} +
  • $lt{'ret'}
    • ENDCRELOAD } - my $reg=''; - if ($registration) { - $reg=&innerregister($forcereg,$titletable); - } - my $form=&serverform(); - my $utility=&utilityfunctions(); - my $remote; - if ($env{'user.adv'}) { - $remote = ''.$lt{'launch'}.'' - } + my $reg = $forcereg ? &innerregister($forcereg,$titletable) : ''; + my $form = &serverform(); + my $utility = &utilityfunctions(); + + #Prepare the message link that indicates the arrival of new mail + my $messagelink = Apache::lonmsg::mynewmail() ? "Message (new)" : "Message"; + $messagelink = '' + . mt($messagelink) .''; - my $helplink=&Apache::loncommon::top_nav_help('Help'); + my $helplink = &Apache::loncommon::top_nav_help('Help'); return (< // BEGIN LON-CAPA Internal @@ -249,20 +304,21 @@ ENDCRELOAD $utility // ]]> - - -$logo - +
      +
    1. $logo
      2. +
    2. $messagelink
      3. +
    3. $roles
      4. +
    4. $helplink
      5. +
    5. $lt{'exit'}
      6. +
    +
      +
    • $lt{'main'}
      • $reloadlink $navmaps $docs $groups -$remote -
    - - - -
    $lt{'main'}$lt{'roles'}$helplink$lt{'exit'}
    +$role_selector + $form $timesync +$breadcrumb $tablestart $inlinebuttons $tableend @@ -633,9 +753,9 @@ ENDREGTHIS # ============================================================================= } else { # ========================================== This can or will not be registered - if ($textual) { -# Not registered, textual - $result= (<&'); + } + } + return $cfile; +} + sub loadevents() { if ($env{'request.state'} eq 'construct' || $env{'request.noversionuri'} =~ m{^/res/adm/pages/}) { return ''; } @@ -686,12 +842,10 @@ sub unloadevents() { return 'LONCAPAstale();'; } -# ============================================================= Start up remote sub startupremote { my ($lowerurl)=@_; - if (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { + if ($env{'environment.remote'} eq 'off') { return (''); } # @@ -766,8 +920,7 @@ ENDSETFLAGS } sub maincall() { - if (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { return ''; } + if ($env{'environment.remote'} eq 'off') { return ''; } return(< main(); @@ -778,12 +931,12 @@ ENDMAINCALL sub load_remote_msg { my ($lowerurl)=@_; - if (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { return ''; } + if ($env{'environment.remote'} eq 'off') { return ''; } my $esclowerurl=&escape($lowerurl); - my $link=&mt('Continue on in Inline Menu mode', - "/adm/remote?action=collapse&url=$esclowerurl"); + my $link=&mt('[_1]Continue[_2] on in Inline Menu mode' + ,'' + ,''); return(<
    @@ -793,25 +946,28 @@ sub load_remote_msg {

    $link

    ENDREMOTEFORM } -# ================================================================= Reopen menu + +sub get_menu_name { + my $hostid = $Apache::lonnet::perlvar{'lonHostID'}; + $hostid =~ s/\W//g; + return 'LCmenu'.$hostid; +} + sub reopenmenu { - if (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { return ''; } - my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'}; + if ($env{'environment.remote'} eq 'off') { return ''; } + my $menuname = &get_menu_name(); my $nothing = &Apache::lonhtmlcommon::javascript_nothing(); return('window.open('.$nothing.',"'.$menuname.'","",false);'); } -# =============================================================== Open the menu sub open { my $returnval=''; - if (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { + if ($env{'environment.remote'} eq 'off') { return ''; } - my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'}; + my $menuname = &get_menu_name(); # unless (shift eq 'unix') { # resizing does not work on linux because of virtual desktop sizes @@ -824,7 +980,7 @@ sub open { # } $returnval.=(<13)) { return ''; } return "\n".qq(window.status+='.';swmenu.clearbut($row,$col);); } else { $inlineremote[10*$row+$col]=''; @@ -856,28 +1012,17 @@ sub switch { $top=&mt($top); $bot=&mt($bot); $desc=&mt($desc); - $img=&mt($img); - + if (($env{'environment.remote'} ne 'off') || ($env{'environment.icons'} eq 'classic')) { + $img=&mt($img); + } my $idx=10*$row+$col; $category_members{$cat}.=':'.$idx; - unless (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { + unless ($env{'environment.remote'} eq 'off') { + if (($row<1) || ($row>13)) { return ''; } # Remote return "\n". qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc");); - } elsif ($env{'browser.interface'} eq 'textual') { -# Accessibility - if ($nobreak==2) { return ''; } - my $text=$top.' '.$bot; - $text=~s/\s*\-\s*//gs; - if ($nobreak) { - $inlineremote[$idx]= - ''.$text.''; - } else { - $inlineremote[$idx]="\n
    ". - $desc.' '.$text.''; - } } else { # Inline Remote if ($env{'environment.icons'} ne 'classic') { @@ -890,22 +1035,22 @@ sub switch { my $pic= ''.$text.''; + '" align="'.($nobreak==3?'right':'left').'" class="LC_noBorder" />'; if ($env{'browser.interface'} eq 'faketextual') { -# Accessibility +# Main Menu if ($nobreak==3) { $inlineremote[$idx]="\n". ''.$text. - ''. + ''. ''.$pic.''; } elsif ($nobreak) { $inlineremote[$idx]="\n". - ''. + ''. ''.$pic.' '.$text.''; } else { $inlineremote[$idx]="\n". - ''. + ''. ''.$pic. ''. ''.$desc.''; @@ -939,9 +1084,8 @@ sub secondlevel { } sub openmenu { - my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'}; - if (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { return ''; } + my $menuname = &get_menu_name(); + if ($env{'environment.remote'} eq 'off') { return ''; } my $nothing = &Apache::lonhtmlcommon::javascript_nothing(); return "window.open(".$nothing.",'".$menuname."');"; } @@ -949,14 +1093,18 @@ sub openmenu { sub inlinemenu { undef(@inlineremote); undef(%category_members); +# calling rawconfig with "1" will evaluate mydesk.tab, even if there is no active remote control &rawconfig(1); my $output=''; for (my $col=1; $col<=2; $col++) { - $output.='"; @@ -976,10 +1125,14 @@ sub inlinemenu { } sub rawconfig { +# +# This evaluates mydesk.tab +# Need to add more positions and more privileges to deal with all +# menu items. +# my $textualoverride=shift; my $output=''; - unless (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { + unless ($env{'environment.remote'} eq 'off') { $output.= "window.status='Opening Remote Control';var swmenu=".&openmenu(). "\nwindow.status='Configuring Remote Control ';"; @@ -989,6 +1142,7 @@ sub rawconfig { my $uname=$env{'user.name'}; my $udom=$env{'user.domain'}; my $adv=$env{'user.adv'}; + my $show_course=&Apache::loncommon::show_course(); my $author=$env{'user.author'}; my $crs=''; if ($env{'request.course.id'}) { @@ -1010,9 +1164,12 @@ sub rawconfig { $prt=~s/\$requested_domain/$requested_domain/g; if ($category_names{$cat}!~/\w/) { $cat='oth'; } my $type = &Apache::loncommon::course_type(); - if ($type eq 'Group') { - $desc = &convert_menu_function($desc,$type); - } +# +# I don't think we support this +# +# if ($type eq 'Group') { +# $desc = &convert_menu_function($desc,$type); +# } if ($pro eq 'clear') { $output.=&clear($row,$col); } elsif ($pro eq 'any') { @@ -1028,6 +1185,16 @@ sub rawconfig { $output.=&secondlevel( $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat); } + } elsif ($pro eq 'shc') { + if ($show_course) { + $output.=&secondlevel( + $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat); + } + } elsif ($pro eq 'nsc') { + if (!$show_course) { + $output.=&secondlevel( + $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat); + } } elsif (($pro=~/^p(\w+)/) && ($prt)) { if (&Apache::lonnet::allowed($1,$prt)) { $output.=&switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$cat); @@ -1052,11 +1219,12 @@ sub rawconfig { } elsif ($pro eq 'author') { if ($author) { if ((($prt eq 'rca') && ($env{'request.role'}=~/^ca/)) || + (($prt eq 'raa') && ($env{'request.role'}=~/^aa/)) || (($prt eq 'rau') && ($env{'request.role'}=~/^au/))) { # Check that we are on the correct machine my $cadom=$requested_domain; my $caname=$env{'user.name'}; - if ($prt eq 'rca') { + if (($prt eq 'rca') || ($prt eq 'raa')) { ($cadom,$caname)= ($env{'request.role'}=~/($match_domain)\/($match_username)$/); } @@ -1071,10 +1239,36 @@ sub rawconfig { } } } + } elsif ($pro eq 'tools') { + my @tools = ('aboutme','blog','portfolio'); + if (grep(/^\Q$prt\E$/,@tools)) { + if (!&Apache::lonnet::usertools_access($env{'user.name'}, + $env{'user.domain'}, + $prt,undef,'tools')) { + $output.=&clear($row,$col); + next; + } + } elsif ($prt eq 'reqcrs') { + my $showreqcrs = 0; + foreach my $type ('official','unofficial') { + if (&Apache::lonnet::usertools_access($env{'user.name'}, + $env{'user.domain'}, + $type,undef,'requestcourses')) { + $showreqcrs = 1; + last; + } + } + if (!$showreqcrs) { + $output.=&clear($row,$col); + next; + } + } + $prt='any'; + $output.=&secondlevel( + $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc,$cat); } } - unless (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { + unless ($env{'environment.remote'} eq 'off') { $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';"; if (&Apache::lonmsg::newmail()) { $output.='swmenu.setstatus("you have","messages");'; @@ -1087,9 +1281,8 @@ sub rawconfig { # ======================================================================= Close sub close { - if (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off')) { return ''; } - my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'}; + if ($env{'environment.remote'} eq 'off') { return ''; } + my $menuname = &get_menu_name(); return(< window.status='Accessing Remote Control'; @@ -1130,8 +1323,10 @@ NAVCONTROL sub utilityfunctions { my $caller = shift; - unless (($env{'browser.interface'} eq 'textual') || - ($env{'environment.remote'} eq 'off') || ($caller eq '/adm/menu')) { return ''; } + unless ($env{'environment.remote'} eq 'off' || + $caller eq '/adm/menu') { + return ''; } + my $currenturl=&Apache::lonnet::clutter(&Apache::lonnet::fixversion((split(/\?/,$env{'request.noversionuri'}))[0])); $currenturl=&Apache::lonenc::check_encrypt(&unescape($currenturl)); @@ -1287,16 +1482,16 @@ function set_bookmark() { bmquery=window.open('','bmquery','width=365,height=165,scrollbars=0'); bmquery.document.write( '$start_page_bookmark' - +"
    \\n
    '; + $output.=''; for (my $row=1; $row<=8; $row++) { foreach my $cat (keys(%category_members)) { if ($category_positions{$cat} ne "$col,$row") { next; } - $output.=''; + #$output.='
    '.&mt($category_names{$cat}).'
    '; + $output.='
    '; + $output.='

    '.&mt($category_names{$cat}).'

    '; + $output.='
    '.&mt($category_names{$cat}).'
    '; my %active=(); foreach my $menu_item (split(/\:/,$category_members{$cat})) { if ($inlineremote[$menu_item]) { @@ -967,6 +1115,7 @@ sub inlinemenu { $output.=$inlineremote[$item]; } $output.='
    '; + $output.=''; } } $output.="
    Link Name:
    " - +"
    Address:

    <\\/center><\\/td>" - +"<\\/tr><\\/table><\\/form><\\/center>" + +'
    ' + +'
    Link Name:
    ' + +'
    Address:

    ' +'$end_page_bookmark' ); bmquery.document.close(); } @@ -1344,18 +1539,21 @@ sub get_nav_status { return $navstatus; } -#FIXME this needs to move into mydesktab and the other locations +#FIXME this needs to move into mydesk.tab and the other locations # the text is generated -sub convert_menu_function { - my ($rolename,$type) = @_; - if ($type eq 'Group') { - $rolename =~ s/student/member/g; - $rolename =~ s/group/team/g; - $rolename =~ s/course/group/g; - $rolename =~ s/Course/Group/g; - } - return $rolename; -} +# +# We currently do not support this anyway. +# +#sub convert_menu_function { +# my ($rolename,$type) = @_; +# if ($type eq 'Group') { +# $rolename =~ s/student/member/g; +# $rolename =~ s/group/team/g; +# $rolename =~ s/course/group/g; +# $rolename =~ s/Course/Group/g; +# } +# return $rolename; +#} sub hidden_button_check { my $hidden; @@ -1365,8 +1563,252 @@ sub hidden_button_check { if ($env{'request.role.adv'}) { return; } - return &Apache::lonnet::EXT('resource.0.buttonshide'); + my $buttonshide = &Apache::lonnet::EXT('resource.0.buttonshide'); + return $buttonshide; +} + +sub roles_selector { + my ($cdom,$cnum) = @_; + my $now = time; + my (%courseroles,%seccount); + my $is_cc; + my $role_selector; + if ($env{'user.role.cc./'.$cdom.'/'.$cnum}) { + my ($start,$end) = split(/\./,$env{'user.role.cc./'.$cdom.'/'.$cnum}); + + if ((($start) && ($start<0)) || + (($end) && ($end<$now)) || + (($start) && ($now<$start))) { + $is_cc = 0; + } else { + $is_cc = 1; + } + } + if ($is_cc) { + &get_all_courseroles($cdom,$cnum,\%courseroles,\%seccount); + } else { + my %gotnosection; + foreach my $item (keys(%env)) { + if ($item =~ m-^user\.role\.([^.]+)\./\Q$cdom\E/\Q$cnum\E/?(\w*)$-) { + my $role = $1; + my $sec = $2; + next if ($role eq 'gr'); + my ($start,$end) = split(/\./,$env{$item}); + next if (($start && $start > $now) || ($end && $end < $now)); + if ($sec eq '') { + if (!$gotnosection{$role}) { + $seccount{$role} ++; + $gotnosection{$role} = 1; + } + } + if (ref($courseroles{$role}) eq 'ARRAY') { + if ($sec ne '') { + if (!grep(/^\Q$sec\E$/,@{$courseroles{$role}})) { + push(@{$courseroles{$role}},$sec); + $seccount{$role} ++; + } + } + } else { + @{$courseroles{$role}} = (); + if ($sec ne '') { + $seccount{$role} ++; + push(@{$courseroles{$role}},$sec); + } + } + } + } + } + my @roles_order = ('cc','in','ta','ep','ad','st'); + if (keys(%courseroles) > 1) { + $role_selector = &jump_to_role($cdom,$cnum,\%seccount,\%courseroles); + $role_selector .= '
    + '."\n". + ''."\n". + ''."\n". + ''."\n". + ''."\n". + '
    '; + } + return $role_selector; +} + +sub get_all_courseroles { + my ($cdom,$cnum,$courseroles,$seccount) = @_; + unless ((ref($courseroles) eq 'HASH') && (ref($seccount) eq 'HASH')) { + return; + } + my ($result,$cached) = + &Apache::lonnet::is_cached_new('getcourseroles',$cdom.'_'.$cnum); + if (defined($cached)) { + if (ref($result) eq 'HASH') { + if ((ref($result->{'roles'}) eq 'HASH') && + (ref($result->{'seccount'}) eq 'HASH')) { + %{$courseroles} = %{$result->{'roles'}}; + %{$seccount} = %{$result->{'seccount'}}; + return; + } + } + } + my %gotnosection; + my %adv_roles = + &Apache::lonnet::get_course_adv_roles($env{'request.course.id'},1); + foreach my $role (keys(%adv_roles)) { + my ($urole,$usec) = split(/:/,$role); + if (!$gotnosection{$urole}) { + $seccount->{$urole} ++; + $gotnosection{$urole} = 1; + } + if (ref($courseroles->{$urole}) eq 'ARRAY') { + if ($usec ne '') { + if (!grep(/^Q$usec\E$/,@{$courseroles->{$urole}})) { + push(@{$courseroles->{$urole}},$usec); + $seccount->{$urole} ++; + } + } + } else { + @{$courseroles->{$urole}} = (); + if ($usec ne '') { + $seccount->{$urole} ++; + push(@{$courseroles->{$urole}},$usec); + } + } + } + my %sections_count = &Apache::loncommon::get_sections($cdom,$cnum,['st']); + @{$courseroles->{'st'}} = (); + if (keys(%sections_count) > 0) { + push(@{$courseroles->{'st'}},keys(%sections_count)); + $seccount->{'st'} = scalar(keys(%sections_count)); + } + my $rolehash = { + 'roles' => $courseroles, + 'seccount' => $seccount, + }; + &Apache::lonnet::do_cache_new('getcourseroles',$cdom.'_'.$cnum,$rolehash); + return; +} + +sub jump_to_role { + my ($cdom,$cnum,$seccount,$courseroles) = @_; + my %lt = &Apache::lonlocal::texthash( + this => 'This role has section(s) associated with it.', + ente => 'Enter a specific section.', + orlb => 'Enter a specific section, or leave blank for no section.', + avai => 'Available sections are:', + youe => 'You entered an invalid section choice:', + plst => 'Please try again', + ); + my $js; + if (ref($courseroles) eq 'HASH') { + $js = ' var secpick = new Array("'.$lt{'ente'}.'","'.$lt{'orlb'}.'");'."\n". + ' var numsec = new Array();'."\n". + ' var rolesections = new Array();'."\n". + ' var rolenames = new Array();'."\n". + ' var roleseclist = new Array();'."\n"; + my @items = keys(%{$courseroles}); + for (my $i=0; $i<@items; $i++) { + $js .= ' rolenames['.$i.'] = "'.$items[$i].'";'."\n"; + my ($secs,$secstr); + if (ref($courseroles->{$items[$i]}) eq 'ARRAY') { + my @sections = sort { $a <=> $b } @{$courseroles->{$items[$i]}}; + $secs = join('","',@sections); + $secstr = join(', ',@sections); + } + $js .= ' rolesections['.$i.'] = new Array("'.$secs.'");'."\n". + ' roleseclist['.$i.'] = "'.$secstr.'";'."\n". + ' numsec['.$i.'] = "'.$seccount->{$items[$i]}.'";'."\n"; + } + } + return <<"END"; + +END +} + # ================================================================ Main Program