1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.92 2003/09/19 15:45:14 bowersj2 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,$target);
147: }
148: return (<<ENDINLINEMENU);
149: <script>
150: // BEGIN LON-CAPA Internal
151: </script>
152: <table bgcolor="$pgbg" width="100%" border="0" cellpadding="3" cellspacing="3">
153: <tr>
154: <td bgcolor="$tabbg">
155: <a href="/adm/menu" target="_top"><font color="$font">$lt{'main'}</font></a>
156: </td>
157: $reloadlink
158: $navmaps
159: <td bgcolor="$tabbg">
160: <a href="/adm/remote?action=launch&url=$escurl" target="_top">
161: <font color="$font">$lt{'launch'}</font></a></td>
162: <td bgcolor="$tabbg">
163: <img align="right" src="/adm/lonIcons/minilogo.gif" />
164: <b>LON-CAPA</b></td>
165: </tr>
166: </table>
167: <script>
168: // END LON-CAPA Internal
169: </script>
170: $reg
171: ENDINLINEMENU
172: } else {
173: return '';
174: }
175: }
176:
177: # ====================================== This gets called in the header section
178:
179: sub registerurl {
180: &Apache::lonlocal::reroutetrans();
181: my $forcereg=shift;
182: my $target = shift;
183: my $result = '';
184: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
185: my $force_title='';
186: if ($ENV{'request.state'} eq 'construct') {
187: $force_title=&Apache::lonxml::display_title();
188: }
189: if ($target eq 'edit') {
190: $result .="<script type=\"text/javascript\">\n".
191: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
192: &Apache::loncommon::browser_and_searcher_javascript().
193: "\n</script>\n";
194: }
195: if (($ENV{'browser.interface'} eq 'textual') ||
196: ($ENV{'environment.remote'} eq 'off') ||
197: ((($ENV{'request.publicaccess'}) ||
198: (!&Apache::lonnet::is_on_map(
199: &Apache::lonnet::unescape($ENV{'REQUEST_URI'})))) &&
200: (!$forcereg))) {
201: return $result.
202: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
203: }
204: # Graphical display after login only
205: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
206: $result.=&innerregister($forcereg,$target);
207: return $result.$force_title;
208: }
209:
210: # =========== This gets called in order to register a URL, both with the Remote
211: # =========== and in the body of the document
212:
213: sub innerregister {
214: &Apache::lonlocal::reroutetrans();
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 $menuitems=(<<ENDMENUITEMS);
348: c&3&1
349: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
350: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
351: c&6&3
352: c&8&1
353: c&8&2
354: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
355: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
356: ENDMENUITEMS
357: unless ($ENV{'REQUEST_URI'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
358: $menuitems.=(<<ENDREALRES);
359: s&6&3&catalog.gif&catalog&info&catalog_info()&Show catalog information
360: s&8&1&eval.gif&evaluate&this&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
361: s&8&2&fdbk.gif&feedback&discuss&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
362: ENDREALRES
363: }
364: my $buttons='';
365: foreach (split(/\n/,$menuitems)) {
366: my ($command,@rest)=split(/\&/,$_);
367: if ($command eq 's') {
368: $buttons.=&switch('','',@rest);
369: } else {
370: $buttons.=&clear(@rest);
371: }
372: }
373: if ($textual) {
374: # Registered, textual output
375: my $utility=&utilityfunctions();
376: my $form=&serverform();
377: my $inlinebuttons=
378: join('',map { (defined($_)?$_:'') } @inlineremote);
379: $result =(<<ENDREGTEXT);
380: <script>
381: // BEGIN LON-CAPA Internal
382: $utility
383: </script>
384: $timesync
385: $newmail
386: $tablestart
387: $inlinebuttons
388: $tableend
389: $form
390: <script>
391: // END LON-CAPA Internal
392: </script>
393:
394: ENDREGTEXT
395: # Registered, graphical output
396: } else {
397: my $requri=(split(/\?/,$ENV{'REQUEST_URI'}))[0];
398: $requri=&Apache::lonnet::unescape($requri);
399: $result = (<<ENDREGTHIS);
400:
401: <script language="JavaScript">
402: // BEGIN LON-CAPA Internal
403: var swmenu=null;
404:
405: function LONCAPAreg() {
406: swmenu=$reopen;
407: swmenu.clearTimeout(swmenu.menucltim);
408: $timesync
409: $newmail
410: $buttons
411: swmenu.currentURL="$requri";
412: swmenu.reloadURL=swmenu.currentURL+window.location.search;
413: swmenu.currentSymb="$ENV{'request.symb'}";
414: swmenu.reloadSymb="$ENV{'request.symb'}";
415: swmenu.currentStale=0;
416: $hwkadd
417: $editbutton
418: }
419:
420: function LONCAPAstale() {
421: swmenu=$reopen
422: swmenu.currentStale=1;
423: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
424: swmenu.switchbutton
425: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
426: }
427: swmenu.clearbut(7,1);
428: swmenu.clearbut(7,2);
429: swmenu.clearbut(7,3);
430: swmenu.menucltim=swmenu.setTimeout(
431: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
432: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
433: 2000);
434: }
435:
436: // END LON-CAPA Internal
437: </script>
438: ENDREGTHIS
439: }
440: # =============================================================================
441: } else {
442: # ========================================== This can or will not be registered
443: if ($textual) {
444: # Not registered, textual
445: $result= (<<ENDDONOTREGTEXT);
446: ENDDONOTREGTEXT
447: } else {
448: # Not registered, graphical
449: $result = (<<ENDDONOTREGTHIS);
450:
451: <script language="JavaScript">
452: // BEGIN LON-CAPA Internal
453: var swmenu=null;
454:
455: function LONCAPAreg() {
456: swmenu=$reopen
457: $timesync
458: swmenu.currentStale=1;
459: swmenu.clearbut(2,1);
460: swmenu.clearbut(2,3);
461: swmenu.clearbut(8,1);
462: swmenu.clearbut(8,2);
463: swmenu.clearbut(8,3);
464: if (swmenu.currentURL) {
465: swmenu.switchbutton
466: (3,1,'reload.gif','return','location','go(currentURL)');
467: } else {
468: swmenu.clearbut(3,1);
469: }
470: }
471:
472: function LONCAPAstale() {
473: }
474:
475: // END LON-CAPA Internal
476: </script>
477: ENDDONOTREGTHIS
478: }
479: # =============================================================================
480: }
481: return $result;
482: }
483:
484: sub loadevents() {
485: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
486: return 'LONCAPAreg();';
487: }
488:
489: sub unloadevents() {
490: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
491: return 'LONCAPAstale();';
492: }
493:
494: # ============================================================= Start up remote
495:
496: sub startupremote {
497: my ($lowerurl)=@_;
498: if (($ENV{'browser.interface'} eq 'textual') ||
499: ($ENV{'environment.remote'} eq 'off')) {
500: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
501: }
502: #
503: # The Remote actually gets launched!
504: #
505: my $configmenu=&rawconfig();
506: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
507:
508: return(<<ENDREMOTESTARTUP);
509: <script>
510:
511: function wheelswitch() {
512: if (window.status=='|') {
513: window.status='/';
514: } else {
515: if (window.status=='/') {
516: window.status='-';
517: } else {
518: if (window.status=='-') {
519: window.status='\\\\';
520: } else {
521: if (window.status=='\\\\') { window.status='|'; }
522: }
523: }
524: }
525: }
526:
527: // ---------------------------------------------------------- The wait function
528: var canceltim;
529: function wait() {
530: if ((menuloaded==1) || (tim==1)) {
531: window.status='Done.';
532: if (tim==0) {
533: clearTimeout(canceltim);
534: $configmenu
535: window.location='$lowerurl';
536: } else {
537: window.location='/adm/remote?action=collapse&url=$esclowerurl';
538: }
539: } else {
540: wheelswitch();
541: setTimeout('wait();',200);
542: }
543: }
544:
545: function main() {
546: canceltim=setTimeout('tim=1;',30000);
547: window.status='-';
548: wait();
549: }
550:
551: </script>
552: ENDREMOTESTARTUP
553: }
554:
555: sub setflags() {
556: return(<<ENDSETFLAGS);
557: <script>
558: menuloaded=0;
559: tim=0;
560: </script>
561: ENDSETFLAGS
562: }
563:
564: sub maincall() {
565: if (($ENV{'browser.interface'} eq 'textual') ||
566: ($ENV{'environment.remote'} eq 'off')) { return ''; }
567: return(<<ENDMAINCALL);
568: <script>
569: main();
570: </script>
571: ENDMAINCALL
572: }
573: # ================================================================= Reopen menu
574:
575: sub reopenmenu {
576: if (($ENV{'browser.interface'} eq 'textual') ||
577: ($ENV{'environment.remote'} eq 'off')) { return ''; }
578: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
579: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
580: return('window.open('.$nothing.',"'.$menuname.'","",false);');
581: }
582:
583: # =============================================================== Open the menu
584:
585: sub open {
586: my $returnval='';
587: if (($ENV{'browser.interface'} eq 'textual') ||
588: ($ENV{'environment.remote'} eq 'off')) { return ''; }
589: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
590: unless (shift eq 'unix') {
591: # resizing does not work on linux because of virtual desktop sizes
592: $returnval.=(<<ENDRESIZE);
593: if (window.screen) {
594: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
595: self.moveTo(190,15);
596: }
597: ENDRESIZE
598: }
599: $returnval.=(<<ENDOPEN);
600: window.status='Opening LON-CAPA Remote Control';
601: var menu=window.open("/res/adm/pages/menu.html","$menuname",
602: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
603: self.name='loncapaclient';
604: ENDOPEN
605: return '<script>'.$returnval.'</script>';
606: }
607:
608:
609: # ================================================================== Raw Config
610:
611: sub clear {
612: my ($row,$col)=@_;
613: unless (($ENV{'browser.interface'} eq 'textual') ||
614: ($ENV{'environment.remote'} eq 'off')) {
615: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
616: } else {
617: $inlineremote[10*$row+$col]='';
618: return '';
619: }
620: }
621:
622: # ============================================ Switch a button or create a link
623: # Switch acts on the javascript that is executed when a button is clicked.
624: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
625:
626: sub switch {
627: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
628: $act=~s/\$uname/$uname/g;
629: $act=~s/\$udom/$udom/g;
630: $top=&mt($top);
631: $bot=&mt($bot);
632: $desc=&mt($desc);
633: unless (($ENV{'browser.interface'} eq 'textual') ||
634: ($ENV{'environment.remote'} eq 'off')) {
635: # Remote
636: return "\n".
637: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
638: } elsif ($ENV{'browser.interface'} eq 'textual') {
639: # Accessibility
640: if ($nobreak==2) { return ''; }
641: my $text=$top.' '.$bot;
642: $text=~s/\s*\-\s*//gs;
643: $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
644: '<a href="javascript:'.$act.';">'.$text.'</a> '.
645: ($nobreak?'':$desc);
646: } else {
647: # Inline Remote
648: if ($nobreak==2) { return ''; }
649: my $text=$top.' '.$bot;
650: $text=~s/\s*\-\s*//gs;
651: $inlineremote[10*$row+$col]="\n".
652: ($nobreak==3?'<td width="50%" colspan="2" align="right"':'<tr><td').
653: ' bgcolor="'.$tabbg.'"'.($nobreak==1?' width="50%" colspan="2"':'').
654: '"><a href="javascript:'.$act.';"><font color="'.$font.'"'.
655: ($nobreak?' size="+1"':'').
656: '>'.$text.'</font></a></td>'.
657: ($nobreak?'':'<td colspan="3" width="80%"><font color="'.$font.'" size="-1">'.$desc.'</font>').($nobreak!=1?'</tr>':'');
658: }
659: return '';
660: }
661:
662: sub secondlevel {
663: my $output='';
664: my
665: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
666: if ($prt eq 'any') {
667: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
668: } elsif ($prt=~/^r(\w+)/) {
669: if ($rol eq $1) {
670: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
671: }
672: }
673: return $output;
674: }
675:
676: sub openmenu {
677: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
678: if (($ENV{'browser.interface'} eq 'textual') ||
679: ($ENV{'environment.remote'} eq 'off')) { return ''; }
680: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
681: return "window.open(".$nothing.",'".$menuname."');";
682: }
683:
684: sub inlinemenu {
685: @inlineremote=();
686: undef @inlineremote;
687: &rawconfig(1);
688: return join('',map { (defined($_)?$_:'') } @inlineremote);
689: }
690:
691: sub rawconfig {
692: my $textualoverride=shift;
693: my $output='';
694: unless (($ENV{'browser.interface'} eq 'textual') ||
695: ($ENV{'environment.remote'} eq 'off')) {
696: $output.=
697: "window.status='Opening Remote Control';var swmenu=".&openmenu().
698: "\nwindow.status='Configuring Remote Control ';";
699: } else {
700: unless ($textualoverride) { return ''; }
701: }
702: my $uname=$ENV{'user.name'};
703: my $udom=$ENV{'user.domain'};
704: my $adv=$ENV{'user.adv'};
705: my $author=$ENV{'user.author'};
706: my $crs='';
707: if ($ENV{'request.course.id'}) {
708: $crs='/'.$ENV{'request.course.id'};
709: if ($ENV{'request.course.sec'}) {
710: $crs.='_'.$ENV{'request.course.sec'};
711: }
712: $crs=~s/\_/\//g;
713: }
714: my $pub=($ENV{'request.state'} eq 'published');
715: my $con=($ENV{'request.state'} eq 'construct');
716: my $rol=$ENV{'request.role'};
717: my $requested_domain = $ENV{'request.role.domain'};
718: foreach (@desklines) {
719: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
720: $prt=~s/\$uname/$uname/g;
721: $prt=~s/\$udom/$udom/g;
722: $prt=~s/\$crs/$crs/g;
723: $prt=~s/\$requested_domain/$requested_domain/g;
724: if ($pro eq 'clear') {
725: $output.=&clear($row,$col);
726: } elsif ($pro eq 'any') {
727: $output.=&secondlevel(
728: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
729: } elsif ($pro eq 'smp') {
730: unless ($adv) {
731: $output.=&secondlevel(
732: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
733: }
734: } elsif ($pro eq 'adv') {
735: if ($adv) {
736: $output.=&secondlevel(
737: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
738: }
739: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
740: if (&Apache::lonnet::allowed($1,$prt)) {
741: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
742: }
743: } elsif ($pro eq 'course') {
744: if ($ENV{'request.course.fn'}) {
745: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
746: }
747: } elsif ($pro =~ /^course_(.*)$/) {
748: # Check for permissions inside of a course
749: if (($ENV{'request.course.id'}) &&
750: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
751: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
752: )) {
753: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
754: }
755: } elsif ($pro eq 'author') {
756: if ($author) {
757: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
758: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
759: # Check that we are on the correct machine
760: my $cadom=$requested_domain;
761: my $caname=$ENV{'user.name'};
762: if ($prt eq 'rca') {
763: ($cadom,$caname)=
764: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
765: }
766: $act =~ s/\$caname/$caname/g;
767: my $home = &Apache::lonnet::homeserver($caname,$cadom);
768: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
769: $output.=switch($caname,$cadom,
770: $row,$col,$img,$top,$bot,$act,$desc);
771: }
772: }
773: }
774: }
775: }
776: unless (($ENV{'browser.interface'} eq 'textual') ||
777: ($ENV{'environment.remote'} eq 'off')) {
778: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
779: }
780: return $output;
781: }
782:
783: # ======================================================================= Close
784:
785: sub close {
786: if (($ENV{'browser.interface'} eq 'textual') ||
787: ($ENV{'environment.remote'} eq 'off')) { return ''; }
788: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
789: return(<<ENDCLOSE);
790: <script>
791: window.status='Accessing Remote Control';
792: menu=window.open("/adm/rat/empty.html","$menuname",
793: "height=350,width=150,scrollbars=no,menubar=no");
794: window.status='Disabling Remote Control';
795: menu.active=0;
796: menu.autologout=0;
797: window.status='Closing Remote Control';
798: menu.close();
799: window.status='Done.';
800: </script>
801: ENDCLOSE
802: }
803:
804: # ====================================================================== Footer
805:
806: sub footer {
807:
808: }
809:
810: sub utilityfunctions {
811: unless (($ENV{'browser.interface'} eq 'textual') ||
812: ($ENV{'environment.remote'} eq 'off')) { return ''; }
813: my $currenturl=$ENV{'REQUEST_URI'};
814: my $currentsymb=$ENV{'request.symb'};
815: return (<<ENDUTILITY)
816:
817: var currentURL="$currenturl";
818: var reloadURL="$currenturl";
819: var currentSymb="$currentsymb";
820:
821: function go(url) {
822: if (url!='' && url!= null) {
823: currentURL = null;
824: currentSymb= null;
825: window.location.href=url;
826: }
827: }
828:
829: function gopost(url,postdata) {
830: if (url!='') {
831: this.document.server.action=url;
832: this.document.server.postdata.value=postdata;
833: this.document.server.command.value='';
834: this.document.server.url.value='';
835: this.document.server.symb.value='';
836: this.document.server.submit();
837: }
838: }
839:
840: function gocmd(url,cmd) {
841: if (url!='') {
842: this.document.server.action=url;
843: this.document.server.postdata.value='';
844: this.document.server.command.value=cmd;
845: this.document.server.url.value=currentURL;
846: this.document.server.symb.value=currentSymb;
847: this.document.server.submit();
848: }
849: }
850:
851: function catalog_info() {
852: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
853: }
854:
855: function chat_win() {
856: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
857: }
858: ENDUTILITY
859: }
860:
861: sub serverform {
862: return(<<ENDSERVERFORM);
863:
864: <form name="server" action="/adm/logout" method="post" target="_top">
865: <input type="hidden" name="postdata" value="none" />
866: <input type="hidden" name="command" value="none" />
867: <input type="hidden" name="url" value="none" />
868: <input type="hidden" name="symb" value="none" />
869: </form>
870: ENDSERVERFORM
871: }
872: # ================================================ Handler when called directly
873:
874:
875: sub handler {
876: my $r = shift;
877: $r->content_type('text/html');
878: $r->send_http_header;
879: return OK if $r->header_only;
880:
881: &Apache::lonlocal::clearreroutetrans();
882:
883: my $form=&serverform();
884: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
885: my $function='student';
886: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
887: $function='coordinator';
888: }
889: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
890: $function='admin';
891: }
892: if (($ENV{'request.role'}=~/^(au|ca)/) ||
893: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
894: $function='author';
895: }
896: my $domain=&Apache::loncommon::determinedomain();
897: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
898: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
899: $font=&Apache::loncommon::designparm($function.'.font',$domain);
900: # ---- Print the screen, pretent to be in text mode to generate text-based menu
901: unless ($ENV{'brower.interface'} eq 'textual') {
902: $ENV{'environment.remote'}='off';
903: }
904: my $utility=&utilityfunctions();
905: $r->print(<<ENDHEADER);
906: <html><head>
907: <title>LON-CAPA Main Menu</title>
908: <script>
909: $utility
910: </script>
911: </head>
912: $bodytag
913: ENDHEADER
914: $r->print('<table>'.&inlinemenu().'</table>'.$form);
915: $r->print(&Apache::lonlocal::endreroutetrans());
916: $r->print('</body></html>');
917: return OK;
918: }
919:
920: # ================================================================ Main Program
921:
922: BEGIN {
923: if (! defined($readdesk)) {
924: {
925: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
926: '/mydesk.tab');
927: while (my $configline=<$config>) {
928: $configline=(split(/\#/,$configline))[0];
929: $configline=~s/^\s+//;
930: chomp($configline);
931: if ($configline) {
932: $desklines[$#desklines+1]=$configline;
933: }
934: }
935: }
936: $readdesk='done';
937: }
938: }
939:
940: 1;
941: __END__
942:
943:
944:
945:
946:
947:
948:
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