--- loncom/interface/lonmenu.pm 2003/01/29 15:22:06 1.31
+++ loncom/interface/lonmenu.pm 2010/03/11 16:35:12 1.317
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# Routines to control the menu
#
-# $Id: lonmenu.pm,v 1.31 2003/01/29 15:22:06 www Exp $
+# $Id: lonmenu.pm,v 1.317 2010/03/11 16:35:12 droeschl Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -25,222 +25,1600 @@
#
# http://www.lon-capa.org/
#
-# (TeX Conversion Module
#
-# 05/29/00,05/30 Gerd Kortemeyer)
+# There is one parameter controlling the action of this module:
#
-# 10/05,05/28,05/30,06/01,06/08,06/09,07/04,08/07 Gerd Kortemeyer
-# 02/15/02 Matthew Hall
+
+=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 GLOBAL VARIABLES
+
+=over
+
+=item @desklines
+
+Each element of this array contains a line of mydesk.tab that doesn't start with
+cat, prim or scnd.
+It gets filled in the BEGIN block of this module.
+
+=item %category_names
+
+The keys of this hash are the abbreviations used in mydesk.tab in those lines that
+start with cat, the values are strings representing titles.
+It gets filled in the BEGIN block of this module.
+
+=item %category_members
+
+TODO
+
+=item %category_positions
+
+The keys of this hash are the abbreviations used in mydesk.tab in those lines that
+start with cat, its values are position vectors (column, row).
+It gets filled in the BEGIN block of this module.
+
+=item $readdesk
+
+Indicates that mydesk.tab has been read.
+It is set to 'done' in the BEGIN block of this module.
+
+=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.
+It is used by primary_menu() to generate the corresponding menu.
+It gets filled in the BEGIN block of this module.
+
+=item @secondary_menu
+
+The elements of this array reference arrays that are made up of the components
+of those lines of mydesk.tab that start with scnd.
+It is used by secondary_menu() to generate the corresponding menu.
+It gets filled in the BEGIN block of this module.
+
+=back
+
+=head1 SUBROUTINES
+
+=over
+
+=item prep_menuitems(\@menuitem)
+
+This routine wraps a menuitem in proper HTML. It is used by primary_menu() and
+secondary_menu().
+
+=item primary_menu()
+
+This routine evaluates @primary_menu and returns XHTML for the menu
+that contains following links: About, Message, Roles, Help, Logout
+@primary_menu is filled within the BEGIN block of this module with
+entries from mydesk.tab
+
+=item secondary_menu()
+
+Same as primary_menu() but operates on @secondary_menu.
+
+=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 get_menu_name()
+
+=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 utilityfunctions()
+
+=item serverform()
+
+=item constspaceform()
+
+=item get_nav_status()
+
+=item hidden_button_check()
+
+=item roles_selector()
+
+=item jump_to_role()
+
+=back
+
+=cut
package Apache::lonmenu;
use strict;
use Apache::lonnet;
-use Apache::File;
-use vars qw(@desklines $readdesk);
+use Apache::lonhtmlcommon();
+use Apache::loncommon();
+use Apache::lonenc();
+use Apache::lonlocal;
+use LONCAPA qw(:DEFAULT :match);
+use HTML::Entities();
+
+use vars qw(@desklines %category_names %category_members %category_positions
+ $readdesk @primary_menu @secondary_menu);
+
+my @inlineremote;
+
+sub prep_menuitem {
+ my ($menuitem) = @_;
+ return '' unless(ref($menuitem) eq 'ARRAY');
+ my $link;
+ if ($$menuitem[1]) { # graphical Link
+ $link = "";
+ } else { # textual Link
+ $link = &mt($$menuitem[3]);
+ }
+ return '
|;
+}
-# ================================================================= Reopen menu
+# primary_menu() evaluates @primary_menu and returns XHTML for the menu
+# that contains following links:
+# About, Message, Roles, Help, Logout
+# @primary_menu is filled within the BEGIN block of this module with
+# entries from mydesk.tab
+sub primary_menu {
+ my $menu;
+ # each element of @primary contains following array:
+ # (link url, icon path, alt text, link text, condition)
+ foreach my $menuitem (@primary_menu) {
+ # evaluate conditions
+ next if ref($menuitem) ne 'ARRAY'; #
+ next if $$menuitem[4] eq 'nonewmsg' # show links depending on
+ && &Apache::lonmsg::mynewmail(); # whether a new msg
+ next if $$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 $$menuitem[4] eq 'roles' ##show links depending on
+ && &Apache::loncommon::show_course(); ##term 'Courses' or
+ next if $$menuitem[4] eq 'courses' ##'Roles' wanted
+ && !&Apache::loncommon::show_course(); ##
+
+
+ if ($$menuitem[3] eq 'Help') { # special treatment for helplink
+ $menu .= '
'.&Apache::loncommon::top_nav_help('Help').'
';
+ } else {
+ my @items = @{$menuitem};
+ $items[0] = 'javascript:'.$menuitem->[0].';';
+ $menu .= &prep_menuitem(\@items);
+ }
+ }
-sub reopenmenu {
- my $nothing='';
- my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
- if ($ENV{'browser.type'} eq 'explorer') { $nothing='javascript:void(0);'; }
- return('window.open("'.$nothing.'","'.$menuname.'","",false);');
-}
-
-# =============================================================== Open the menu
-
-sub open {
- my $returnval='';
- my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
- unless (shift eq 'unix') {
-# resizing does not work on linux because of virtual desktop sizes
- $returnval.=(<'.$returnval.'';
-}
-
-# ============================================================ Switch Menu Item
-
-sub switchmenu {
- my ($row,$col,$imgsrc,$texttop,$textbot,$action,$description)=@_;
- my $openwin=&openmenu();
- return(<
- var swmenu=$openwin
- swmenu.switchbutton($row,$col,"$imgsrc","$texttop","$textbot","$action","$description");
-
-ENDSMENU
+ return "$menu";
+}
+
+
+sub secondary_menu {
+ my $menu;
+
+ my $crstype = &Apache::loncommon::course_type();
+ my $canedit = &Apache::lonnet::allowed('mdc', $env{'request.course.id'});
+ my $canviewgrps = &Apache::lonnet::allowed('vcg', $env{'request.course.id'}
+ . ($env{'request.course.sec'} ? "/$env{'request.course.sec'}"
+ : ''));
+ my $showlink = &show_return_link();
+ my %groups = &Apache::lonnet::get_active_groups(
+ $env{'user.domain'}, $env{'user.name'},
+ $env{'course.' . $env{'request.course.id'} . '.domain'},
+ $env{'course.' . $env{'request.course.id'} . '.num'});
+ foreach my $menuitem (@secondary_menu) {
+ # evaluate conditions
+ next if ref($menuitem) ne 'ARRAY';
+ next if $$menuitem[4] ne 'always'
+ && !$env{'request.course.id'};
+ next if $$menuitem[4] eq 'showreturn'
+ && !$showlink
+ && !($env{'request.state'} eq 'construct');
+ next if $$menuitem[4] =~ /^mdc/
+ && !$canedit;
+ next if $$menuitem[4] eq 'mdcCourse'
+ && $crstype eq 'Community';
+ next if $$menuitem[4] eq 'mdcCommunity'
+ && $crstype ne 'Community';
+ next if $$menuitem[4] =~ /^remotenav/
+ && $env{'environment.remotenavmap'} ne 'on';
+ next if $$menuitem[4] =~ /noremotenav/
+ && $env{'environment.remotenavmap'} eq 'on';
+ next if $$menuitem[4] =~ /^(no|)remotenav$/
+ && $crstype eq 'Community';
+ next if $$menuitem[4] =~ /^(no|)remotenavCommunity$/
+ && $crstype ne 'Community';
+ next if $$menuitem[4] =~ /showgroups$/
+ && !$canviewgrps
+ && !%groups;
+
+ if ($$menuitem[3] eq 'Roles' && $env{'request.course.id'}) {
+ # special treatment for role selector
+ my $roles_selector = &roles_selector(
+ $env{'course.' . $env{'request.course.id'} . '.domain'},
+ $env{'course.' . $env{'request.course.id'} . '.num'} );
+
+ $menu .= $roles_selector ? "