1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.88 2003/09/17 01:45:14 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: #
29: # There are two parameters controlling the action of this module:
30: #
31: # browser.interface - if this is 'textual', it overrides the second parameter
32: # and goes to screen reader PDA mode
33: #
34: # environment.remote - if this is 'on', the routines controll the remote
35: # control, otherwise they render the main window controls; ignored it
36: # browser.interface is 'textual'
37: #
38:
39: package Apache::lonmenu;
40:
41: use strict;
42: use Apache::lonnet;
43: use Apache::Constants qw(:common);
44: use Apache::lonhtmlcommon();
45: use Apache::loncommon;
46: use Apache::File;
47: use Apache::lonlocal;
48:
49: use vars qw(@desklines $readdesk);
50:
51:
52: my @inlineremote;
53: my $font;
54: my $tabbg;
55: my $pgbg;
56:
57: # ================================================================ Little texts
58:
59: sub initlittle {
60: return &Apache::lonlocal::texthash('ret' => 'Return to Last Location',
61: 'nav' => 'Navigate Contents',
62: 'main' => 'Main Menu',
63: 'launch' => 'Launch Remote Control');
64: }
65:
66: # ============================= This gets called at the top of the body section
67:
68: sub menubuttons {
69: &Apache::lonlocal::reroutetrans();
70: my $forcereg=shift;
71: my $target =shift;
72: my $registration=shift;
73: my $navmaps='';
74: my $reloadlink='';
75: my $escurl=&Apache::lonnet::escape($ENV{'REQUEST_URI'});
76: my $escsymb=&Apache::lonnet::escape($ENV{'request.symb'});
77: if ($ENV{'browser.interface'} eq 'textual') {
78: # Textual display only
79: my %lt=&initlittle();
80: if ($ENV{'request.course.id'}) {
81: $navmaps=(<<ENDNAV);
82: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">$lt{'nav'}</a>
83: ENDNAV
84: if (($ENV{'REQUEST_URI'}=~/^\/adm\//) &&
85: ($ENV{'REQUEST_URI'}!~/^\/adm\/wrapper\//) &&
86: ($ENV{'REQUEST_URI'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
87: my $escreload=&Apache::lonnet::escape('return:');
88: $reloadlink=(<<ENDRELOAD);
89: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a>
90: ENDRELOAD
91: }
92: }
93: my $output=(<<ENDMAINMENU);
94: <script>
95: // BEGIN LON-CAPA Internal
96: </script>
97: <a href="/adm/menu" target="_top">$lt{'main'}</a>
98: $reloadlink $navmaps<br />
99: <script>
100: // END LON-CAPA Internal
101: </script>
102: ENDMAINMENU
103: if ($registration) { $output.=&innerregister($forcereg,$target); }
104: return $output."<hr />";
105: } elsif ($ENV{'environment.remote'} eq 'off') {
106: # Remote Control is switched off
107: # figure out colors
108: my %lt=&initlittle();
109: my $function='student';
110: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
111: $function='coordinator';
112: }
113: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
114: $function='admin';
115: }
116: if (($ENV{'request.role'}=~/^(au|ca)/) ||
117: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
118: $function='author';
119: }
120: my $domain=&Apache::loncommon::determinedomain();
121: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
122: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
123: $font=&Apache::loncommon::designparm($function.'.font',$domain);
124: my $link=&Apache::loncommon::designparm($function.'.link',$domain);
125: my $alink=&Apache::loncommon::designparm($function.'.alink',$domain);
126: my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain);
127: my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain);
128: # Do we have a NAV link?
129: if ($ENV{'request.course.id'}) {
130: $navmaps=(<<ENDNAVREM);
131: <td bgcolor="$tabbg">
132: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top"><font color="$font">$lt{'nav'}</font></a></td>
133: ENDNAVREM
134: if (($ENV{'REQUEST_URI'}=~/^\/adm\//) &&
135: ($ENV{'REQUEST_URI'}!~/^\/adm\/wrapper\//) &&
136: ($ENV{'REQUEST_URI'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
137: my $escreload=&Apache::lonnet::escape('return:');
138: $reloadlink=(<<ENDRELOAD);
139: <td bgcolor="$tabbg">
140: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a></td>
141: ENDRELOAD
142: }
143: }
144: my $reg='';
145: if ($registration) {
146: $reg=&innerregister($forcereg,$target);
147: }
148: my $trans=&Apache::lonlocal::endreroutetrans();
149: return (<<ENDINLINEMENU);
150: <script>
151: // BEGIN LON-CAPA Internal
152: </script>
153: <table bgcolor="$pgbg" width="100%" border="0" cellpadding="3" cellspacing="3">
154: <tr>
155: <td bgcolor="$tabbg">
156: <a href="/adm/menu" target="_top"><font color="$font">$lt{'main'}</font></a>
157: </td>
158: $reloadlink
159: $navmaps
160: <td bgcolor="$tabbg">
161: <a href="/adm/remote?action=launch&url=$escurl" target="_top">
162: <font color="$font">$lt{'launch'}</font></a></td>
163: <td bgcolor="$tabbg">
164: <img align="right" src="/adm/lonIcons/minilogo.gif" />
165: <b>LON-CAPA</b></td>
166: </tr>
167: </table>
168: $trans
169: <script>
170: // END LON-CAPA Internal
171: </script>
172: $reg
173: ENDINLINEMENU
174: } else {
175: return '';
176: }
177: }
178:
179: # ====================================== This gets called in the header section
180:
181: sub registerurl {
182: my $forcereg=shift;
183: my $target = shift;
184: my $result = '';
185: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
186: my $force_title='';
187: if ($ENV{'request.state'} eq 'construct') {
188: $force_title=&Apache::lonxml::display_title();
189: }
190: if ($target eq 'edit') {
191: $result .="<script type=\"text/javascript\">\n".
192: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
193: &Apache::loncommon::browser_and_searcher_javascript().
194: "\n</script>\n";
195: }
196: if (($ENV{'browser.interface'} eq 'textual') ||
197: ($ENV{'environment.remote'} eq 'off') ||
198: ((($ENV{'request.publicaccess'}) ||
199: (!&Apache::lonnet::is_on_map(
200: &Apache::lonnet::unescape($ENV{'REQUEST_URI'})))) &&
201: (!$forcereg))) {
202: return $result.
203: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
204: }
205: # Graphical display after login only
206: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
207: $result.=&innerregister($forcereg,$target);
208: return $result.$force_title;
209: }
210:
211: # =========== This gets called in order to register a URL, both with the Remote
212: # =========== and in the body of the document
213:
214: sub innerregister {
215: my $forcereg=shift;
216: my $target = shift;
217: my $result = '';
218: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
219:
220: $Apache::lonxml::registered=1;
221:
222: my $textinter=($ENV{'browser.interface'} eq 'textual');
223: my $noremote=($ENV{'environment.remote'} eq 'off');
224:
225: my $textual=($textinter || $noremote);
226:
227: @inlineremote=();
228: undef @inlineremote;
229:
230: my $reopen=&Apache::lonmenu::reopenmenu();
231:
232: my $newmail='';
233: if ($noremote) {
234: $newmail='<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%"><tr><td bgcolor="'.$tabbg.'">';
235: }
236: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
237: my ($mapurl,$rid,$resurl)=&Apache::lonnet::decode_symb($ENV{'request.symb'});
238: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
239: my $maptitle=&Apache::lonnet::gettitle($mapurl);
240: my $restitle=&Apache::lonnet::gettitle($resurl);
241: if ($maptitle) {
242: $newmail.=', '.$maptitle;
243: }
244: if ($restitle) {
245: $newmail.=': '.$restitle;
246: }
247: $newmail.=' ';
248: }
249: if (&Apache::lonmsg::newmail()) {
250: $newmail=($textual?
251: '<b><a href="/adm/communicate" target="_top">You have new messages</a></b><br />':
252: 'swmenu.setstatus("you have","messages");');
253: }
254: if ($noremote) {
255: $newmail.='</td></tr></table>';
256: }
257: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
258: my $tablestart=($noremote?'<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%">':'');
259: my $tableend=($noremote?'</table>':'');
260: # =============================================================================
261: # ============================ This is for URLs that actually can be registered
262: if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
263: # -- This applies to homework problems for users with grading privileges
264: my $hwkadd='';
265: if
266: ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
267: my $crs='/'.$ENV{'request.course.id'};
268: if ($ENV{'request.course.sec'}) {
269: $crs.='_'.$ENV{'request.course.sec'};
270: }
271: $crs=~s/\_/\//g;
272:
273: if (&Apache::lonnet::allowed('vgr',$crs)) {
274: $hwkadd.=&switch('','',7,1,'subm.gif','view sub-','missions',
275: "gocmd('/adm/grades','submission')",
276: 'View user submissions for this assessment resource');
277: }
278: if (&Apache::lonnet::allowed('mgr',$crs)) {
279: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem','grades',
280: "gocmd('/adm/grades','gradingmenu')",
281: 'Modify user grades for this assessment resource');
282: }
283: if (&Apache::lonnet::allowed('opa',$crs)) {
284: $hwkadd.=&switch('','',7,3,'pparm.gif','problem','parms',
285: "gocmd('/adm/parmset','set')",
286: 'Modify deadlines, etc, for this assessment resource');
287: }
288: }
289: # -- End Homework
290: ###
291: ### Determine whether or not to display the 'cstr' button for this
292: ### resource
293: ###
294: my $editbutton = '';
295: if ($ENV{'user.author'}) {
296: if ($ENV{'request.role'}=~/^(ca|au)/) {
297: # Set defaults for authors
298: my ($top,$bottom) = ('con-','struct');
299: my $action = "go('/priv/".$ENV{'user.name'}."');";
300: my $cadom = $ENV{'request.role.domain'};
301: my $caname = $ENV{'user.name'};
302: my $desc = "Enter my resource construction space";
303: # Set defaults for co-authors
304: if ($ENV{'request.role'} =~ /^ca/) {
305: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
306: ($top,$bottom) = ('co con-','struct');
307: $action = "go('/priv/".$caname."');";
308: $desc = "Enter construction space as co-author";
309: }
310: # Check that we are on the correct machine
311: my $home = &Apache::lonnet::homeserver($caname,$cadom);
312: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
313: $editbutton=&switch
314: ('','',6,1,$top,,$bottom,$action,$desc);
315: }
316: }
317: ##
318: ## Determine if user can edit url.
319: ##
320: my $cfile='';
321: my $cfuname='';
322: my $cfudom='';
323: if ($ENV{'request.filename'}) {
324: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
325: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
326: # Chech that the user has permission to edit this resource
327: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
328: if (defined($cfudom)) {
329: if (&Apache::lonnet::homeserver($cfuname,$cfudom)
330: eq $Apache::lonnet::perlvar{'lonHostID'}) {
331: $cfile=$file;
332: }
333: }
334: }
335: # Finally, turn the button on or off
336: if ($cfile) {
337: $editbutton=&switch
338: ('','',6,1,'cstr.gif','edit','resource',
339: "go('".$cfile."');","Edit this resource");
340: } elsif ($editbutton eq '') {
341: $editbutton=&clear(6,1);
342: }
343: }
344: ###
345: ###
346: # Prepare the rest of the buttons
347: my $menuitems=(<<ENDMENUITEMS);
348: c&3&1
349: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
350: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
351: c&6&3
352: c&8&1
353: c&8&2
354: s&8&3&prt.gif&prepare&printout&gopost('/adm/printout',currentURL)&Prepare a printable document
355: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
356: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
357: ENDMENUITEMS
358: unless ($ENV{'REQUEST_URI'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
359: $menuitems.=(<<ENDREALRES);
360: s&6&3&catalog.gif&catalog&info&catalog_info()&Show catalog information
361: s&8&1&eval.gif&evaluate&this&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
362: s&8&2&fdbk.gif&feedback&discuss&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
363: ENDREALRES
364: }
365: my $buttons='';
366: foreach (split(/\n/,$menuitems)) {
367: my ($command,@rest)=split(/\&/,$_);
368: if ($command eq 's') {
369: $buttons.=&switch('','',@rest);
370: } else {
371: $buttons.=&clear(@rest);
372: }
373: }
374: if ($textual) {
375: # Registered, textual output
376: my $utility=&utilityfunctions();
377: my $form=&serverform();
378: my $inlinebuttons=
379: join('',map { (defined($_)?$_:'') } @inlineremote);
380: $result =(<<ENDREGTEXT);
381: <script>
382: // BEGIN LON-CAPA Internal
383: $utility
384: </script>
385: $timesync
386: $newmail
387: $tablestart
388: $inlinebuttons
389: $tableend
390: $form
391: <script>
392: // END LON-CAPA Internal
393: </script>
394:
395: ENDREGTEXT
396: # Registered, graphical output
397: } else {
398: my $requri=(split(/\?/,$ENV{'REQUEST_URI'}))[0];
399: $requri=&Apache::lonnet::unescape($requri);
400: $result = (<<ENDREGTHIS);
401:
402: <script language="JavaScript">
403: // BEGIN LON-CAPA Internal
404: var swmenu=null;
405:
406: function LONCAPAreg() {
407: swmenu=$reopen;
408: swmenu.clearTimeout(swmenu.menucltim);
409: $timesync
410: $newmail
411: $buttons
412: swmenu.currentURL="$requri";
413: swmenu.reloadURL=swmenu.currentURL+window.location.search;
414: swmenu.currentSymb="$ENV{'request.symb'}";
415: swmenu.reloadSymb="$ENV{'request.symb'}";
416: swmenu.currentStale=0;
417: $hwkadd
418: $editbutton
419: }
420:
421: function LONCAPAstale() {
422: swmenu=$reopen
423: swmenu.currentStale=1;
424: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
425: swmenu.switchbutton
426: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
427: }
428: swmenu.clearbut(7,1);
429: swmenu.clearbut(7,2);
430: swmenu.clearbut(7,3);
431: swmenu.menucltim=swmenu.setTimeout(
432: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
433: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
434: 2000);
435: }
436:
437: // END LON-CAPA Internal
438: </script>
439: ENDREGTHIS
440: }
441: # =============================================================================
442: } else {
443: # ========================================== This can or will not be registered
444: if ($textual) {
445: # Not registered, textual
446: $result= (<<ENDDONOTREGTEXT);
447: ENDDONOTREGTEXT
448: } else {
449: # Not registered, graphical
450: $result = (<<ENDDONOTREGTHIS);
451:
452: <script language="JavaScript">
453: // BEGIN LON-CAPA Internal
454: var swmenu=null;
455:
456: function LONCAPAreg() {
457: swmenu=$reopen
458: $timesync
459: swmenu.currentStale=1;
460: swmenu.clearbut(2,1);
461: swmenu.clearbut(2,3);
462: swmenu.clearbut(8,1);
463: swmenu.clearbut(8,2);
464: swmenu.clearbut(8,3);
465: if (swmenu.currentURL) {
466: swmenu.switchbutton
467: (3,1,'reload.gif','return','location','go(currentURL)');
468: } else {
469: swmenu.clearbut(3,1);
470: }
471: }
472:
473: function LONCAPAstale() {
474: }
475:
476: // END LON-CAPA Internal
477: </script>
478: ENDDONOTREGTHIS
479: }
480: # =============================================================================
481: }
482: return $result;
483: }
484:
485: sub loadevents() {
486: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
487: return 'LONCAPAreg();';
488: }
489:
490: sub unloadevents() {
491: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
492: return 'LONCAPAstale();';
493: }
494:
495: # ============================================================= Start up remote
496:
497: sub startupremote {
498: my ($lowerurl)=@_;
499: if (($ENV{'browser.interface'} eq 'textual') ||
500: ($ENV{'environment.remote'} eq 'off')) {
501: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
502: }
503: #
504: # The Remote actually gets launched!
505: #
506: my $configmenu=&rawconfig();
507: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
508:
509: return(<<ENDREMOTESTARTUP);
510: <script>
511:
512: function wheelswitch() {
513: if (window.status=='|') {
514: window.status='/';
515: } else {
516: if (window.status=='/') {
517: window.status='-';
518: } else {
519: if (window.status=='-') {
520: window.status='\\\\';
521: } else {
522: if (window.status=='\\\\') { window.status='|'; }
523: }
524: }
525: }
526: }
527:
528: // ---------------------------------------------------------- The wait function
529: var canceltim;
530: function wait() {
531: if ((menuloaded==1) || (tim==1)) {
532: window.status='Done.';
533: if (tim==0) {
534: clearTimeout(canceltim);
535: $configmenu
536: window.location='$lowerurl';
537: } else {
538: window.location='/adm/remote?action=collapse&url=$esclowerurl';
539: }
540: } else {
541: wheelswitch();
542: setTimeout('wait();',200);
543: }
544: }
545:
546: function main() {
547: canceltim=setTimeout('tim=1;',30000);
548: window.status='-';
549: wait();
550: }
551:
552: </script>
553: ENDREMOTESTARTUP
554: }
555:
556: sub setflags() {
557: return(<<ENDSETFLAGS);
558: <script>
559: menuloaded=0;
560: tim=0;
561: </script>
562: ENDSETFLAGS
563: }
564:
565: sub maincall() {
566: if (($ENV{'browser.interface'} eq 'textual') ||
567: ($ENV{'environment.remote'} eq 'off')) { return ''; }
568: return(<<ENDMAINCALL);
569: <script>
570: main();
571: </script>
572: ENDMAINCALL
573: }
574: # ================================================================= Reopen menu
575:
576: sub reopenmenu {
577: if (($ENV{'browser.interface'} eq 'textual') ||
578: ($ENV{'environment.remote'} eq 'off')) { return ''; }
579: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
580: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
581: return('window.open('.$nothing.',"'.$menuname.'","",false);');
582: }
583:
584: # =============================================================== Open the menu
585:
586: sub open {
587: my $returnval='';
588: if (($ENV{'browser.interface'} eq 'textual') ||
589: ($ENV{'environment.remote'} eq 'off')) { return ''; }
590: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
591: unless (shift eq 'unix') {
592: # resizing does not work on linux because of virtual desktop sizes
593: $returnval.=(<<ENDRESIZE);
594: if (window.screen) {
595: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
596: self.moveTo(190,15);
597: }
598: ENDRESIZE
599: }
600: $returnval.=(<<ENDOPEN);
601: window.status='Opening LON-CAPA Remote Control';
602: var menu=window.open("/res/adm/pages/menu.html","$menuname",
603: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
604: self.name='loncapaclient';
605: ENDOPEN
606: return '<script>'.$returnval.'</script>';
607: }
608:
609:
610: # ================================================================== Raw Config
611:
612: sub clear {
613: my ($row,$col)=@_;
614: unless (($ENV{'browser.interface'} eq 'textual') ||
615: ($ENV{'environment.remote'} eq 'off')) {
616: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
617: } else {
618: $inlineremote[10*$row+$col]='';
619: return '';
620: }
621: }
622:
623: # ============================================ Switch a button or create a link
624: # Switch acts on the javascript that is executed when a button is clicked.
625: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
626:
627: sub switch {
628: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
629: $act=~s/\$uname/$uname/g;
630: $act=~s/\$udom/$udom/g;
631: $top=&mt($top);
632: $bot=&mt($bot);
633: $desc=&mt($desc);
634: unless (($ENV{'browser.interface'} eq 'textual') ||
635: ($ENV{'environment.remote'} eq 'off')) {
636: # Remote
637: return "\n".
638: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
639: } elsif ($ENV{'browser.interface'} eq 'textual') {
640: # Accessibility
641: if ($nobreak==2) { return ''; }
642: my $text=$top.' '.$bot;
643: $text=~s/\s*\-\s*//gs;
644: $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
645: '<a href="javascript:'.$act.';">'.$text.'</a> '.
646: ($nobreak?'':$desc);
647: } else {
648: # Inline Remote
649: if ($nobreak==2) { return ''; }
650: my $text=$top.' '.$bot;
651: $text=~s/\s*\-\s*//gs;
652: $inlineremote[10*$row+$col]="\n".
653: ($nobreak==3?'<td width="50%" colspan="2" align="right"':'<tr><td').
654: ' bgcolor="'.$tabbg.'"'.($nobreak==1?' width="50%" colspan="2"':'').
655: '"><a href="javascript:'.$act.';"><font color="'.$font.'"'.
656: ($nobreak?' size="+1"':'').
657: '>'.$text.'</font></a></td>'.
658: ($nobreak?'':'<td colspan="3" width="80%"><font color="'.$font.'" size="-1">'.$desc.'</font>').($nobreak!=1?'</tr>':'');
659: }
660: return '';
661: }
662:
663: sub secondlevel {
664: my $output='';
665: my
666: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
667: if ($prt eq 'any') {
668: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
669: } elsif ($prt=~/^r(\w+)/) {
670: if ($rol eq $1) {
671: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
672: }
673: }
674: return $output;
675: }
676:
677: sub openmenu {
678: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
679: if (($ENV{'browser.interface'} eq 'textual') ||
680: ($ENV{'environment.remote'} eq 'off')) { return ''; }
681: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
682: return "window.open(".$nothing.",'".$menuname."');";
683: }
684:
685: sub inlinemenu {
686: @inlineremote=();
687: undef @inlineremote;
688: &rawconfig(1);
689: return join('',map { (defined($_)?$_:'') } @inlineremote);
690: }
691:
692: sub rawconfig {
693: my $textualoverride=shift;
694: my $output='';
695: unless (($ENV{'browser.interface'} eq 'textual') ||
696: ($ENV{'environment.remote'} eq 'off')) {
697: $output.=
698: "window.status='Opening Remote Control';var swmenu=".&openmenu().
699: "\nwindow.status='Configuring Remote Control ';";
700: } else {
701: unless ($textualoverride) { return ''; }
702: }
703: my $uname=$ENV{'user.name'};
704: my $udom=$ENV{'user.domain'};
705: my $adv=$ENV{'user.adv'};
706: my $author=$ENV{'user.author'};
707: my $crs='';
708: if ($ENV{'request.course.id'}) {
709: $crs='/'.$ENV{'request.course.id'};
710: if ($ENV{'request.course.sec'}) {
711: $crs.='_'.$ENV{'request.course.sec'};
712: }
713: $crs=~s/\_/\//g;
714: }
715: my $pub=($ENV{'request.state'} eq 'published');
716: my $con=($ENV{'request.state'} eq 'construct');
717: my $rol=$ENV{'request.role'};
718: my $requested_domain = $ENV{'request.role.domain'};
719: foreach (@desklines) {
720: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
721: $prt=~s/\$uname/$uname/g;
722: $prt=~s/\$udom/$udom/g;
723: $prt=~s/\$crs/$crs/g;
724: $prt=~s/\$requested_domain/$requested_domain/g;
725: if ($pro eq 'clear') {
726: $output.=&clear($row,$col);
727: } elsif ($pro eq 'any') {
728: $output.=&secondlevel(
729: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
730: } elsif ($pro eq 'smp') {
731: unless ($adv) {
732: $output.=&secondlevel(
733: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
734: }
735: } elsif ($pro eq 'adv') {
736: if ($adv) {
737: $output.=&secondlevel(
738: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
739: }
740: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
741: if (&Apache::lonnet::allowed($1,$prt)) {
742: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
743: }
744: } elsif ($pro eq 'course') {
745: if ($ENV{'request.course.fn'}) {
746: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
747: }
748: } elsif ($pro =~ /^course_(.*)$/) {
749: # Check for permissions inside of a course
750: if (($ENV{'request.course.id'}) &&
751: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
752: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
753: )) {
754: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
755: }
756: } elsif ($pro eq 'author') {
757: if ($author) {
758: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
759: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
760: # Check that we are on the correct machine
761: my $cadom=$requested_domain;
762: my $caname=$ENV{'user.name'};
763: if ($prt eq 'rca') {
764: ($cadom,$caname)=
765: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
766: }
767: $act =~ s/\$caname/$caname/g;
768: my $home = &Apache::lonnet::homeserver($caname,$cadom);
769: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
770: $output.=switch($caname,$cadom,
771: $row,$col,$img,$top,$bot,$act,$desc);
772: }
773: }
774: }
775: }
776: }
777: unless (($ENV{'browser.interface'} eq 'textual') ||
778: ($ENV{'environment.remote'} eq 'off')) {
779: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
780: }
781: return $output;
782: }
783:
784: # ======================================================================= Close
785:
786: sub close {
787: if (($ENV{'browser.interface'} eq 'textual') ||
788: ($ENV{'environment.remote'} eq 'off')) { return ''; }
789: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
790: return(<<ENDCLOSE);
791: <script>
792: window.status='Accessing Remote Control';
793: menu=window.open("/adm/rat/empty.html","$menuname",
794: "height=350,width=150,scrollbars=no,menubar=no");
795: window.status='Disabling Remote Control';
796: menu.active=0;
797: menu.autologout=0;
798: window.status='Closing Remote Control';
799: menu.close();
800: window.status='Done.';
801: </script>
802: ENDCLOSE
803: }
804:
805: # ====================================================================== Footer
806:
807: sub footer {
808:
809: }
810:
811: sub utilityfunctions {
812: unless (($ENV{'browser.interface'} eq 'textual') ||
813: ($ENV{'environment.remote'} eq 'off')) { return ''; }
814: my $currenturl=$ENV{'REQUEST_URI'};
815: my $currentsymb=$ENV{'request.symb'};
816: return (<<ENDUTILITY)
817:
818: var currentURL="$currenturl";
819: var reloadURL="$currenturl";
820: var currentSymb="$currentsymb";
821:
822: function go(url) {
823: if (url!='' && url!= null) {
824: currentURL = null;
825: currentSymb= null;
826: window.location.href=url;
827: }
828: }
829:
830: function gopost(url,postdata) {
831: if (url!='') {
832: this.document.server.action=url;
833: this.document.server.postdata.value=postdata;
834: this.document.server.command.value='';
835: this.document.server.url.value='';
836: this.document.server.symb.value='';
837: this.document.server.submit();
838: }
839: }
840:
841: function gocmd(url,cmd) {
842: if (url!='') {
843: this.document.server.action=url;
844: this.document.server.postdata.value='';
845: this.document.server.command.value=cmd;
846: this.document.server.url.value=currentURL;
847: this.document.server.symb.value=currentSymb;
848: this.document.server.submit();
849: }
850: }
851:
852: function catalog_info() {
853: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
854: }
855:
856: function chat_win() {
857: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
858: }
859: ENDUTILITY
860: }
861:
862: sub serverform {
863: return(<<ENDSERVERFORM);
864:
865: <form name="server" action="/adm/logout" method="post" target="_top">
866: <input type="hidden" name="postdata" value="none" />
867: <input type="hidden" name="command" value="none" />
868: <input type="hidden" name="url" value="none" />
869: <input type="hidden" name="symb" value="none" />
870: </form>
871: ENDSERVERFORM
872: }
873: # ================================================ Handler when called directly
874:
875:
876: sub handler {
877: my $r = shift;
878: $r->content_type('text/html');
879: $r->send_http_header;
880: return OK if $r->header_only;
881:
882: my $form=&serverform();
883: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
884: my $function='student';
885: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
886: $function='coordinator';
887: }
888: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
889: $function='admin';
890: }
891: if (($ENV{'request.role'}=~/^(au|ca)/) ||
892: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
893: $function='author';
894: }
895: my $domain=&Apache::loncommon::determinedomain();
896: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
897: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
898: $font=&Apache::loncommon::designparm($function.'.font',$domain);
899: # ---- Print the screen, pretent to be in text mode to generate text-based menu
900: unless ($ENV{'brower.interface'} eq 'textual') {
901: $ENV{'environment.remote'}='off';
902: }
903: my $utility=&utilityfunctions();
904: $r->print(<<ENDHEADER);
905: <html><head>
906: <title>LON-CAPA Main Menu</title>
907: <script>
908: $utility
909: </script>
910: </head>
911: $bodytag
912: ENDHEADER
913: $r->print('<table>'.&inlinemenu().'</table>'.$form);
914: $r->print('</body></html>');
915: return OK;
916: }
917:
918: # ================================================================ Main Program
919:
920: BEGIN {
921: if (! defined($readdesk)) {
922: {
923: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
924: '/mydesk.tab');
925: while (my $configline=<$config>) {
926: $configline=(split(/\#/,$configline))[0];
927: $configline=~s/^\s+//;
928: chomp($configline);
929: if ($configline) {
930: $desklines[$#desklines+1]=$configline;
931: }
932: }
933: }
934: $readdesk='done';
935: }
936: }
937:
938: 1;
939: __END__
940:
941:
942:
943:
944:
945:
946:
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