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Trying to move more and more menu-related functions into lonmenu.pm

    1: # The LearningOnline Network with CAPA
    2: # Routines to control the menu
    3: #
    4: # $Id: lonmenu.pm,v 1.37 2003/02/14 15:14:37 www Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: # (TeX Conversion Module
   29: #
   30: # 05/29/00,05/30 Gerd Kortemeyer)
   31: #
   32: # 10/05,05/28,05/30,06/01,06/08,06/09,07/04,08/07 Gerd Kortemeyer
   33: # 02/15/02 Matthew Hall
   34: 
   35: package Apache::lonmenu;
   36: 
   37: use strict;
   38: use Apache::lonnet;
   39: use Apache::Constants qw(:common);
   40: use Apache::loncommon;
   41: use Apache::File;
   42: use vars qw(@desklines $readdesk);
   43: 
   44: # ============================================================= Start up remote
   45: 
   46: sub startupremote {
   47:     my ($lowerurl)=@_;
   48:     if ($ENV{'browser.interface'} eq 'textual') {
   49:      return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
   50:     }
   51:     my $configmenu=&rawconfig();
   52:     return(<<ENDREMOTESTARTUP);
   53: <script>
   54: 
   55: function wheelswitch() {
   56:    if (window.status=='|') { 
   57:       window.status='/'; 
   58:    } else {
   59:       if (window.status=='/') {
   60:          window.status='-';
   61:       } else {
   62:          if (window.status=='-') { 
   63:             window.status='\\\\'; 
   64:          } else {
   65:             if (window.status=='\\\\') { window.status='|'; }
   66:          }
   67:       }
   68:    } 
   69: }
   70: 
   71: // ---------------------------------------------------------- The wait function
   72: var canceltim;
   73: function wait() {
   74:    if ((menuloaded==1) || (tim==1)) {
   75:       window.status='Done.';
   76:       if (tim==0) {
   77:          clearTimeout(canceltim);
   78:          $configmenu
   79:          window.location='$lowerurl';  
   80:       } else {
   81:          alert("Remote Control timed out. It is possible that it was blocked by pop-up window filters.");
   82:       }
   83:    } else {
   84:       wheelswitch();
   85:       setTimeout('wait();',200);
   86:    }
   87: }
   88: 
   89: function main() {
   90:    canceltim=setTimeout('tim=1;',60000);
   91:    window.status='-';
   92:    wait();
   93: }
   94: 
   95: </script>
   96: ENDREMOTESTARTUP
   97: }
   98: 
   99: sub setflags() {
  100:     return(<<ENDSETFLAGS);
  101: <script>
  102:     menuloaded=0;
  103:     tim=0;
  104: </script>
  105: ENDSETFLAGS
  106: }
  107: 
  108: sub maincall() {
  109:     if ($ENV{'browser.interface'} eq 'textual') { return ''; }
  110:     return(<<ENDMAINCALL);
  111: <script>
  112:     main();
  113: </script>
  114: ENDMAINCALL
  115: }
  116: # ================================================================= Reopen menu
  117: 
  118: sub reopenmenu {
  119:    my $nothing='';
  120:    if ($ENV{'browser.interface'} eq 'textual') { return ''; }
  121:    my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
  122:    if ($ENV{'browser.type'} eq 'explorer') { $nothing='javascript:void(0);'; }
  123:    return('window.open("'.$nothing.'","'.$menuname.'","",false);');
  124: } 
  125: 
  126: # =============================================================== Open the menu
  127: 
  128: sub open {
  129:     my $returnval='';
  130:     if ($ENV{'browser.interface'} eq 'textual') { return ''; }
  131:     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
  132:     unless (shift eq 'unix') {
  133: # resizing does not work on linux because of virtual desktop sizes
  134:        $returnval.=(<<ENDRESIZE);
  135: if (window.screen) {
  136:     self.resizeTo(screen.availWidth-215,screen.availHeight-55);
  137:     self.moveTo(190,15);
  138: }
  139: ENDRESIZE
  140:     }
  141:     $returnval.=(<<ENDOPEN);
  142: window.status='Opening LON-CAPA Remote Control';
  143: var menu=window.open("/res/adm/pages/menu.html","$menuname",
  144: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
  145: ENDOPEN
  146:     return '<script>'.$returnval.'</script>';
  147: }
  148: 
  149: 
  150: # ================================================================== Raw Config
  151: 
  152: sub clear {
  153:     my ($row,$col)=@_;
  154:     unless ($ENV{'browser.interface'} eq 'textual') {
  155:        return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
  156:    } else { return ''; }
  157: }
  158: 
  159: # Switch acts on the javascript that is executed when a button is clicked.  
  160: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
  161: sub switch {
  162:     my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc)=@_;
  163:     $act=~s/\$uname/$uname/g;
  164:     $act=~s/\$udom/$udom/g;
  165:     unless ($ENV{'browser.interface'} eq 'textual') {
  166:        return "\n".
  167:  qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
  168:    } else {
  169:        my $text=$top.' '.$bot;
  170:        $text=~s/\- //;
  171:        return '<br /><a href="javascript:'.$act.';">'.$text.'</a> '.$desc;
  172:    }
  173: }
  174: 
  175: sub secondlevel {
  176:     my $output='';
  177:     my 
  178:     ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
  179:     if ($prt eq 'any') {
  180: 	   $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  181:     } elsif ($prt=~/^r(\w+)/) {
  182:         if ($rol eq $1) {
  183:            $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  184:         }
  185:     }
  186:     return $output;
  187: }
  188: 
  189: sub openmenu {
  190:     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
  191:     if ($ENV{'browser.interface'} eq 'textual') { return ''; }
  192:     if ($ENV{'browser.type'} eq 'explorer') {
  193:        return "window.open('javascript:void(0);','".$menuname."');";
  194:    } else {
  195:        return "window.open('','".$menuname."');";
  196:    }
  197: }
  198: 
  199: sub rawconfig {
  200:     my $textualoverride=shift;
  201:     my $output='';
  202:     unless ($ENV{'browser.interface'} eq 'textual') {
  203:        $output.=
  204:  "window.status='Opening Remote Control';var swmenu=".&openmenu().
  205: "\nwindow.status='Configuring Remote Control ';";
  206:     } else {
  207:        unless ($textualoverride) { return ''; }
  208:     }
  209:     my $uname=$ENV{'user.name'};
  210:     my $udom=$ENV{'user.domain'};
  211:     my $adv=$ENV{'user.adv'};
  212:     my $author=$ENV{'user.author'};
  213:     my $crs='';
  214:     if ($ENV{'request.course.id'}) {
  215:        $crs='/'.$ENV{'request.course.id'};
  216:        if ($ENV{'request.course.sec'}) {
  217: 	   $crs.='_'.$ENV{'request.course.sec'};
  218:        }
  219:        $crs=~s/\_/\//g;
  220:     }
  221:     my $pub=($ENV{'request.state'} eq 'published');
  222:     my $con=($ENV{'request.state'} eq 'construct');
  223:     my $rol=$ENV{'request.role'};
  224:     my $requested_domain = $ENV{'request.role.domain'};
  225:     foreach (@desklines) {
  226:         my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
  227:         $prt=~s/\$uname/$uname/g;
  228:         $prt=~s/\$udom/$udom/g;
  229:         $prt=~s/\$crs/$crs/g; 
  230:         $prt=~s/\$requested_domain/$requested_domain/g;
  231:         if ($pro eq 'clear') {
  232: 	    $output.=&clear($row,$col);
  233:         } elsif ($pro eq 'any') {
  234:                $output.=&secondlevel(
  235: 	  $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
  236: 	} elsif ($pro eq 'smp') {
  237:             unless ($adv) {
  238:                $output.=&secondlevel(
  239:           $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
  240:             }
  241:         } elsif ($pro eq 'adv') {
  242:             if ($adv) {
  243:                $output.=&secondlevel(
  244: 	  $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
  245:             }
  246:         } elsif (($pro=~/p(\w+)/) && ($prt)) {
  247: 	    if (&Apache::lonnet::allowed($1,$prt)) {
  248:                $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  249:             }
  250:         } elsif ($pro eq 'course') {
  251:             if ($ENV{'request.course.fn'}) {
  252:                $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
  253: 	    }
  254:         } elsif ($pro eq 'author') {
  255:             if ($author) {
  256:                 if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
  257:                     (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
  258:                     # Check that we are on the correct machine
  259:                     my $cadom=$requested_domain;
  260:                     my $caname=$ENV{'user.name'};
  261:                     if ($prt eq 'rca') {
  262: 		       ($cadom,$caname)=
  263:                                ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
  264:                     }                       
  265:                     $act =~ s/\$caname/$caname/g;
  266:                     my $home = &Apache::lonnet::homeserver($caname,$cadom);
  267:                     if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
  268:                         $output.=switch($caname,$cadom,
  269:                                         $row,$col,$img,$top,$bot,$act,$desc);
  270:                     }
  271:                 }
  272:             }
  273:         }
  274:     }
  275:     unless ($ENV{'browser.interface'} eq 'textual') {
  276:        $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
  277:     }
  278:     return $output;
  279: }
  280: 
  281: # ======================================================================= Close
  282: 
  283: sub close {
  284:     if ($ENV{'browser.interface'} eq 'textual') { return ''; }
  285:     my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
  286:     return(<<ENDCLOSE);
  287: <script>
  288: window.status='Accessing Remote Control';
  289: menu=window.open("/adm/rat/empty.html","$menuname",
  290:                  "height=350,width=150,scrollbars=no,menubar=no");
  291: window.status='Disabling Remote Control';
  292: menu.active=0;
  293: menu.autologout=0;
  294: window.status='Closing Remote Control';
  295: menu.close();
  296: window.status='Done.';
  297: </script>
  298: ENDCLOSE
  299: }
  300: 
  301: # ====================================================================== Footer
  302: 
  303: sub footer {
  304: 
  305: }
  306: 
  307: # ================================================ Handler when called directly
  308: 
  309: 
  310: sub handler {
  311:     my $r = shift;
  312:     $r->content_type('text/html');
  313:     $r->send_http_header;
  314:     return OK if $r->header_only;
  315: 
  316:     my $bodytag=&Apache::loncommon::bodytag('Main Menu');
  317: # ------------------------------------------------------------ Print the screen
  318:     $r->print(<<ENDHEADER);
  319: <html><head>
  320: <title>LON-CAPA Main Menu</title>
  321: <script>
  322: function go(url) {
  323:     window.location=url;
  324: }
  325: function gopost(url) {
  326:     window.location=url;
  327: }
  328: </script>
  329: </head>
  330: $bodytag
  331: ENDHEADER
  332:     $r->print(&rawconfig(1));
  333:     $r->print('</body></html>');
  334:     return OK;
  335: }
  336: 
  337: # ================================================================ Main Program
  338: 
  339: BEGIN {
  340:   if (! defined($readdesk)) {
  341:    {
  342:     my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
  343: 				  '/mydesk.tab');
  344:     while (my $configline=<$config>) {
  345:        $configline=(split(/\#/,$configline))[0];
  346:        $configline=~s/^\s+//;
  347:        chomp($configline);
  348:        if ($configline) {
  349:           $desklines[$#desklines+1]=$configline;
  350:        }
  351:     }
  352:    }
  353:    $readdesk='done';
  354:   }
  355: }
  356: 
  357: 1;
  358: __END__
  359: 
  360: 
  361: 
  362: 
  363: 
  364: 
  365: