--- loncom/interface/lonmenu.pm	2003/02/20 22:04:18	1.44
+++ loncom/interface/lonmenu.pm	2003/04/04 21:21:51	1.56
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Routines to control the menu
 #
-# $Id: lonmenu.pm,v 1.44 2003/02/20 22:04:18 www Exp $
+# $Id: lonmenu.pm,v 1.56 2003/04/04 21:21:51 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -25,21 +25,27 @@
 #
 # http://www.lon-capa.org/
 #
-# (TeX Conversion Module
 #
-# 05/29/00,05/30 Gerd Kortemeyer)
+# 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
+#
+# 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'
 #
-# 10/05,05/28,05/30,06/01,06/08,06/09,07/04,08/07 Gerd Kortemeyer
-# 02/15/02 Matthew Hall
 
 package Apache::lonmenu;
 
 use strict;
 use Apache::lonnet;
 use Apache::Constants qw(:common);
+use Apache::lonhtmlcommon();
 use Apache::loncommon;
 use Apache::File;
 use vars qw(@desklines $readdesk);
+my @inlineremote;
 
 # ============================= This gets called at the top of the body section
 
@@ -47,19 +53,53 @@ sub menubuttons {
     my $forcereg=shift;
     my $target  =shift;
     my $registration=shift;
-    unless ($ENV{'browser.interface'} eq 'textual') { return ''; }
+    my $navmaps='';
+    my $escurl=&Apache::lonnet::escape($ENV{'REQUEST_URI'});
+    my $escsymb=&Apache::lonnet::escape($ENV{'request.symb'});
+    if ($ENV{'browser.interface'} eq 'textual') {
 # Textual display only
-    my $output=(<<ENDMAINMENU);
+        if ($ENV{'request.course.id'}) {
+	    $navmaps=(<<ENDNAV);
+<a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">Navigate Contents</a>
+ENDNAV
+        }
+	my $output=(<<ENDMAINMENU);
 <script>
 // BEGIN LON-CAPA Internal
 </script>
-<a href="/adm/menu" target="_top">Main Menu</a><br />
+<a href="/adm/menu" target="_top">Main Menu</a>
+$navmaps<br />
 <script>
 // END LON-CAPA Internal
 </script>
 ENDMAINMENU
-    if ($registration) { $output.=&innerregister($forcereg,$target); }
-    return $output."<hr />";
+        if ($registration) { $output.=&innerregister($forcereg,$target); }
+	return $output."<hr />";
+    } elsif ($ENV{'environment.remote'} eq 'off') {
+# Remote Control is switched off
+        if ($ENV{'request.course.id'}) {
+	    $navmaps=(<<ENDNAVREM);
+<a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">Navigate Contents</a>
+ENDNAVREM
+        }
+	my $output=(<<ENDINLINEMENU);
+<script>
+// BEGIN LON-CAPA Internal
+</script>
+<table bgcolor="#AAAAAA" width="100%" border="2"><tr><td>
+<a href="/adm/menu" target="_top">Main Menu</a>
+$navmaps
+<a href="/adm/remote?action=launch&url=$escurl" target="_top">Launch Remote Control</a>
+<br />
+<script>
+// END LON-CAPA Internal
+</script>
+ENDINLINEMENU
+        if ($registration) { $output.=&innerregister($forcereg,$target); }
+	return $output."</td></tr></table>";
+    } else {
+	return '';
+    }
 }
 
 # ====================================== This gets called in the header section
@@ -70,12 +110,13 @@ sub registerurl {
     my $result = '';
     
     if ($target eq 'edit') {
-        $result .="<script type=\"text/javascrtipt\">\n".
+        $result .="<script type=\"text/javascript\">\n".
             "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
             &Apache::loncommon::browser_and_searcher_javascript().
                 "\n</script>\n";
     }
     if (($ENV{'browser.interface'} eq 'textual') ||
+        ($ENV{'environment.remote'} eq 'off') ||
         ((($ENV{'request.publicaccess'}) || 
          (!&Apache::lonnet::is_on_map($ENV{'REQUEST_URI'}))) &&
         (!$forcereg))) {
@@ -98,7 +139,14 @@ sub innerregister {
 
     $Apache::lonxml::registered=1;
 
-    my $textual=($ENV{'browser.interface'} eq 'textual');
+    my $textinter=($ENV{'browser.interface'} eq 'textual');
+    my $noremote=($ENV{'environment.remote'} eq 'off');
+    
+    my $textual=($textinter || $noremote);
+
+    @inlineremote=();
+    undef @inlineremote;
+
     my $reopen=&Apache::lonmenu::reopenmenu();
 
     my $newmail='';
@@ -214,6 +262,8 @@ ENDMENUITEMS
 # Registered, textual output
             my $utility=&utilityfunctions();
             my $form=&serverform();
+            my $inlinebuttons=
+                        join('',map { (defined($_)?$_:'') } @inlineremote);
 	    $result =(<<ENDREGTEXT);
 <script>
 // BEGIN LON-CAPA Internal
@@ -221,9 +271,7 @@ $utility
 </script>
 $timesync
 $newmail
-$buttons
-$hwkadd
-$editbutton
+$inlinebuttons
 $form
 <script>
 //END LON-CAPA Internal
@@ -245,7 +293,7 @@ var swmenu=null;
           $newmail
           $buttons
 	  swmenu.currentURL=window.location.pathname;
-          swmenu.reloadURL=window.location.pathname;
+          swmenu.reloadURL=window.location.pathname+window.location.search;
           swmenu.currentSymb="$ENV{'request.symb'}";
           swmenu.reloadSymb="$ENV{'request.symb'}";
           swmenu.currentStale=0;
@@ -330,10 +378,16 @@ sub unloadevents() {
 
 sub startupremote {
     my ($lowerurl)=@_;
-    if ($ENV{'browser.interface'} eq 'textual') {
+    if (($ENV{'browser.interface'} eq 'textual') ||
+        ($ENV{'environment.remote'} eq 'off')) {
      return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
     }
+#
+# The Remote actually gets launched!
+#
     my $configmenu=&rawconfig();
+    my $esclowerurl=&Apache::lonnet::escape($lowerurl);
+
     return(<<ENDREMOTESTARTUP);
 <script>
 
@@ -363,7 +417,7 @@ function wait() {
          $configmenu
          window.location='$lowerurl';  
       } else {
-         alert("Remote Control timed out. It is possible that it was blocked by pop-up window filters.");
+	  window.location='/adm/remote?action=collapse&url=$esclowerurl';
       }
    } else {
       wheelswitch();
@@ -372,7 +426,7 @@ function wait() {
 }
 
 function main() {
-   canceltim=setTimeout('tim=1;',60000);
+   canceltim=setTimeout('tim=1;',30000);
    window.status='-';
    wait();
 }
@@ -391,7 +445,8 @@ ENDSETFLAGS
 }
 
 sub maincall() {
-    if ($ENV{'browser.interface'} eq 'textual') { return ''; }
+    if (($ENV{'browser.interface'} eq 'textual') ||
+        ($ENV{'environment.remote'} eq 'off')) { return ''; }
     return(<<ENDMAINCALL);
 <script>
     main();
@@ -401,18 +456,19 @@ ENDMAINCALL
 # ================================================================= Reopen menu
 
 sub reopenmenu {
-   my $nothing='';
-   if ($ENV{'browser.interface'} eq 'textual') { return ''; }
+   if (($ENV{'browser.interface'} eq 'textual') ||
+       ($ENV{'environment.remote'} eq 'off')) { return ''; }
    my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
-   if ($ENV{'browser.type'} eq 'explorer') { $nothing='javascript:void(0);'; }
-   return('window.open("'.$nothing.'","'.$menuname.'","",false);');
+   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') { return ''; }
+    if (($ENV{'browser.interface'} eq 'textual') ||
+        ($ENV{'environment.remote'} eq 'off')) { return ''; }
     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
     unless (shift eq 'unix') {
 # resizing does not work on linux because of virtual desktop sizes
@@ -436,9 +492,13 @@ ENDOPEN
 
 sub clear {
     my ($row,$col)=@_;
-    unless ($ENV{'browser.interface'} eq 'textual') {
+    unless (($ENV{'browser.interface'} eq 'textual') ||
+            ($ENV{'environment.remote'} eq 'off')) {
        return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
-   } else { return ''; }
+   } else { 
+       $inlineremote[10*$row+$col]='';
+       return ''; 
+   }
 }
 
 # ============================================ Switch a button or create a link
@@ -449,17 +509,29 @@ sub switch {
     my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
     $act=~s/\$uname/$uname/g;
     $act=~s/\$udom/$udom/g;
-    unless ($ENV{'browser.interface'} eq 'textual') {
+    unless (($ENV{'browser.interface'} eq 'textual')  ||
+            ($ENV{'environment.remote'} eq 'off')) {
+# Remote
        return "\n".
  qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
+   } elsif ($ENV{'browser.interface'} eq 'textual') {
+# Accessibility
+       if ($nobreak==2) { return ''; }
+       my $text=$top.' '.$bot;
+       $text=~s/\- //;
+       $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
+        '<a href="javascript:'.$act.';" target="_top">'.$text.'</a> '.
+        ($nobreak?'':$desc);
    } else {
+# Inline Remote
        if ($nobreak==2) { return ''; }
        my $text=$top.' '.$bot;
        $text=~s/\- //;
-       return "\n".($nobreak?' ':'<br />').
+       $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
         '<a href="javascript:'.$act.';" target="_top">'.$text.'</a> '.
         ($nobreak?'':$desc);
    }
+    return '';
 }
 
 sub secondlevel {
@@ -478,18 +550,24 @@ sub secondlevel {
 
 sub openmenu {
     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
-    if ($ENV{'browser.interface'} eq 'textual') { return ''; }
-    if ($ENV{'browser.type'} eq 'explorer') {
-       return "window.open('javascript:void(0);','".$menuname."');";
-   } else {
-       return "window.open('','".$menuname."');";
-   }
+    if (($ENV{'browser.interface'} eq 'textual') ||
+        ($ENV{'environment.remote'} eq 'off')) { return ''; }
+    my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
+    return "window.open(".$nothing.",'".$menuname."');";
+}
+
+sub inlinemenu {
+    @inlineremote=();
+    undef @inlineremote;
+    &rawconfig(1);
+    return join('',map { (defined($_)?$_:'') } @inlineremote);
 }
 
 sub rawconfig {
     my $textualoverride=shift;
     my $output='';
-    unless ($ENV{'browser.interface'} eq 'textual') {
+    unless (($ENV{'browser.interface'} eq 'textual') ||
+            ($ENV{'environment.remote'} eq 'off')) {
        $output.=
  "window.status='Opening Remote Control';var swmenu=".&openmenu().
 "\nwindow.status='Configuring Remote Control ';";
@@ -562,7 +640,8 @@ sub rawconfig {
             }
         }
     }
-    unless ($ENV{'browser.interface'} eq 'textual') {
+    unless (($ENV{'browser.interface'} eq 'textual') ||
+            ($ENV{'environment.remote'} eq 'off')) {
        $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
     }
     return $output;
@@ -571,7 +650,8 @@ sub rawconfig {
 # ======================================================================= Close
 
 sub close {
-    if ($ENV{'browser.interface'} eq 'textual') { return ''; }
+    if (($ENV{'browser.interface'} eq 'textual') ||
+        ($ENV{'environment.remote'} eq 'off')) { return ''; }
     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
     return(<<ENDCLOSE);
 <script>
@@ -595,7 +675,8 @@ sub footer {
 }
 
 sub utilityfunctions {
-    unless ($ENV{'browser.interface'} eq 'textual') { return ''; }
+    unless (($ENV{'browser.interface'} eq 'textual')  ||
+        ($ENV{'environment.remote'} eq 'off')) { return ''; }
     my $currenturl=$ENV{'REQUEST_URI'};
     my $currentsymb=$ENV{'request.symb'};
 return (<<ENDUTILITY)
@@ -656,10 +737,13 @@ sub handler {
     $r->send_http_header;
     return OK if $r->header_only;
 
-    my $utility=&utilityfunctions();
     my $form=&serverform();
     my $bodytag=&Apache::loncommon::bodytag('Main Menu');
-# ------------------------------------------------------------ Print the screen
+# ---- Print the screen, pretent to be in text mode to generate text-based menu
+    unless ($ENV{'brower.interface'} eq 'textual') {
+	$ENV{'environment.remote'}='off';
+    }
+    my $utility=&utilityfunctions();
     $r->print(<<ENDHEADER);
 <html><head>
 <title>LON-CAPA Main Menu</title>
@@ -669,7 +753,7 @@ $utility
 </head>
 $bodytag
 ENDHEADER
-    $r->print(&rawconfig(1).$form);
+    $r->print(&inlinemenu().$form);
     $r->print('</body></html>');
     return OK;
 }