1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.98 2003/11/07 23:22:21 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: my $forcereg=shift;
70: my $target =shift;
71: my $registration=shift;
72: my $navmaps='';
73: my $reloadlink='';
74: my $escurl=&Apache::lonnet::escape($ENV{'request.noversionuri'});
75: my $escsymb=&Apache::lonnet::escape($ENV{'request.symb'});
76: if ($ENV{'browser.interface'} eq 'textual') {
77: # Textual display only
78: my %lt=&initlittle();
79: if ($ENV{'request.course.id'}) {
80: $navmaps=(<<ENDNAV);
81: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">$lt{'nav'}</a>
82: ENDNAV
83: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
84: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
85: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
86: my $escreload=&Apache::lonnet::escape('return:');
87: $reloadlink=(<<ENDRELOAD);
88: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a>
89: ENDRELOAD
90: }
91: }
92: my $output=(<<ENDMAINMENU);
93: <script>
94: // BEGIN LON-CAPA Internal
95: </script>
96: <a href="/adm/menu" target="_top">$lt{'main'}</a>
97: $reloadlink $navmaps<br />
98: <script>
99: // END LON-CAPA Internal
100: </script>
101: ENDMAINMENU
102: if ($registration) { $output.=&innerregister($forcereg,$target); }
103: return $output."<hr />";
104: } elsif ($ENV{'environment.remote'} eq 'off') {
105: # Remote Control is switched off
106: # figure out colors
107: my %lt=&initlittle();
108: my $function='student';
109: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
110: $function='coordinator';
111: }
112: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
113: $function='admin';
114: }
115: if (($ENV{'request.role'}=~/^(au|ca)/) ||
116: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
117: $function='author';
118: }
119: my $domain=&Apache::loncommon::determinedomain();
120: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
121: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
122: $font=&Apache::loncommon::designparm($function.'.font',$domain);
123: my $link=&Apache::loncommon::designparm($function.'.link',$domain);
124: my $alink=&Apache::loncommon::designparm($function.'.alink',$domain);
125: my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain);
126: my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain);
127: # Do we have a NAV link?
128: if ($ENV{'request.course.id'}) {
129: $navmaps=(<<ENDNAVREM);
130: <td bgcolor="$tabbg">
131: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top"><font color="$font">$lt{'nav'}</font></a></td>
132: ENDNAVREM
133: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
134: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
135: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
136: my $escreload=&Apache::lonnet::escape('return:');
137: $reloadlink=(<<ENDRELOAD);
138: <td bgcolor="$tabbg">
139: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a></td>
140: ENDRELOAD
141: }
142: }
143: my $reg='';
144: if ($registration) {
145: $reg=&innerregister($forcereg,$target);
146: }
147: return (<<ENDINLINEMENU);
148: <script>
149: // BEGIN LON-CAPA Internal
150: </script>
151: <table bgcolor="$pgbg" width="100%" border="0" cellpadding="3" cellspacing="3">
152: <tr>
153: <td bgcolor="$tabbg">
154: <a href="/adm/menu" target="_top"><font color="$font">$lt{'main'}</font></a>
155: </td>
156: $reloadlink
157: $navmaps
158: <td bgcolor="$tabbg">
159: <a href="/adm/remote?action=launch&url=$escurl" target="_top">
160: <font color="$font">$lt{'launch'}</font></a></td>
161: <td bgcolor="$tabbg">
162: <img align="right" src="/adm/lonIcons/minilogo.gif" />
163: <b>LON-CAPA</b></td>
164: </tr>
165: </table>
166: <script>
167: // END LON-CAPA Internal
168: </script>
169: $reg
170: ENDINLINEMENU
171: } else {
172: return '';
173: }
174: }
175:
176: # ====================================== This gets called in the header section
177:
178: sub registerurl {
179: my $forcereg=shift;
180: my $target = shift;
181: my $result = '';
182: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
183: my $force_title='';
184: if ($ENV{'request.state'} eq 'construct') {
185: $force_title=&Apache::lonxml::display_title();
186: }
187: if ($target eq 'edit') {
188: $result .="<script type=\"text/javascript\">\n".
189: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
190: &Apache::loncommon::browser_and_searcher_javascript().
191: "\n</script>\n";
192: }
193: if (($ENV{'browser.interface'} eq 'textual') ||
194: ($ENV{'environment.remote'} eq 'off') ||
195: ((($ENV{'request.publicaccess'}) ||
196: (!&Apache::lonnet::is_on_map(
197: &Apache::lonnet::unescape($ENV{'request.noversionuri'})))) &&
198: (!$forcereg))) {
199: return $result.
200: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
201: }
202: # Graphical display after login only
203: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
204: if ($target ne 'edit') {
205: $result.=&innerregister($forcereg,$target);
206: }
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: my $forcereg=shift;
215: my $target = shift;
216: my $result = '';
217: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
218:
219: $Apache::lonxml::registered=1;
220:
221: my $textinter=($ENV{'browser.interface'} eq 'textual');
222: my $noremote=($ENV{'environment.remote'} eq 'off');
223:
224: my $textual=($textinter || $noremote);
225:
226: @inlineremote=();
227: undef @inlineremote;
228:
229: my $reopen=&Apache::lonmenu::reopenmenu();
230:
231: my $newmail='';
232: if ($noremote) {
233: $newmail='<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%"><tr><td bgcolor="'.$tabbg.'">';
234: }
235: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
236: my ($mapurl,$rid,$resurl)=&Apache::lonnet::decode_symb($ENV{'request.symb'});
237: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
238: my $maptitle=&Apache::lonnet::gettitle($mapurl);
239: my $restitle=&Apache::lonnet::gettitle($resurl);
240: if ($maptitle) {
241: $newmail.=', '.$maptitle;
242: }
243: if ($restitle) {
244: $newmail.=': '.$restitle;
245: }
246: $newmail.=' ';
247: }
248: if (&Apache::lonmsg::newmail()) {
249: $newmail=($textual?
250: '<b><a href="/adm/communicate" target="_top">You have new messages</a></b><br />':
251: 'swmenu.setstatus("you have","messages");');
252: }
253: if ($noremote) {
254: $newmail.='</td></tr></table>';
255: }
256: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
257: my $tablestart=($noremote?'<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%">':'');
258: my $tableend=($noremote?'</table>':'');
259: # =============================================================================
260: # ============================ This is for URLs that actually can be registered
261: if (($ENV{'request.noversionuri'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
262: # -- This applies to homework problems for users with grading privileges
263: my $hwkadd='';
264: if
265: ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
266: my $crs='/'.$ENV{'request.course.id'};
267: if ($ENV{'request.course.sec'}) {
268: $crs.='_'.$ENV{'request.course.sec'};
269: }
270: $crs=~s/\_/\//g;
271:
272: if (&Apache::lonnet::allowed('vgr',$crs)) {
273: $hwkadd.=&switch('','',7,1,'subm.gif','view sub-','missions',
274: "gocmd('/adm/grades','submission')",
275: 'View user submissions for this assessment resource');
276: }
277: if (&Apache::lonnet::allowed('mgr',$crs)) {
278: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem','grades',
279: "gocmd('/adm/grades','gradingmenu')",
280: 'Modify user grades for this assessment resource');
281: }
282: if (&Apache::lonnet::allowed('opa',$crs)) {
283: $hwkadd.=&switch('','',7,3,'pparm.gif','problem','parms',
284: "gocmd('/adm/parmset','set')",
285: 'Modify deadlines, etc, for this assessment resource');
286: }
287: }
288: # -- End Homework
289: ###
290: ### Determine whether or not to display the 'cstr' button for this
291: ### resource
292: ###
293: my $editbutton = '';
294: if ($ENV{'user.author'}) {
295: if ($ENV{'request.role'}=~/^(ca|au)/) {
296: # Set defaults for authors
297: my ($top,$bottom) = ('con-','struct');
298: my $action = "go('/priv/".$ENV{'user.name'}."');";
299: my $cadom = $ENV{'request.role.domain'};
300: my $caname = $ENV{'user.name'};
301: my $desc = "Enter my resource construction space";
302: # Set defaults for co-authors
303: if ($ENV{'request.role'} =~ /^ca/) {
304: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
305: ($top,$bottom) = ('co con-','struct');
306: $action = "go('/priv/".$caname."');";
307: $desc = "Enter construction space as co-author";
308: }
309: # Check that we are on the correct machine
310: my $home = &Apache::lonnet::homeserver($caname,$cadom);
311: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
312: $editbutton=&switch
313: ('','',6,1,$top,,$bottom,$action,$desc);
314: }
315: }
316: ##
317: ## Determine if user can edit url.
318: ##
319: my $cfile='';
320: my $cfuname='';
321: my $cfudom='';
322: if ($ENV{'request.filename'}) {
323: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
324: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
325: # Chech that the user has permission to edit this resource
326: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
327: if (defined($cfudom)) {
328: if (&Apache::lonnet::homeserver($cfuname,$cfudom)
329: eq $Apache::lonnet::perlvar{'lonHostID'}) {
330: $cfile=$file;
331: }
332: }
333: }
334: # Finally, turn the button on or off
335: if ($cfile) {
336: $editbutton=&switch
337: ('','',6,1,'cstr.gif','edit','resource',
338: "go('".$cfile."');","Edit this resource");
339: } elsif ($editbutton eq '') {
340: $editbutton=&clear(6,1);
341: }
342: }
343: ###
344: ###
345: # Prepare the rest of the buttons
346: my $menuitems=(<<ENDMENUITEMS);
347: c&3&1
348: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
349: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
350: c&6&3
351: c&8&1
352: c&8&2
353: s&8&3&prt.gif&prepare&printout&gopost('/adm/printout',currentURL)&Prepare a printable document
354: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
355: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
356: ENDMENUITEMS
357: unless ($ENV{'request.noversionuri'}=~/\/(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.noversionuri'}))[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.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
486: return 'LONCAPAreg();';
487: }
488:
489: sub unloadevents() {
490: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
491: return 'LONCAPAstale();';
492: }
493:
494: # ============================================================= Start up remote
495:
496: sub startupremote {
497: my ($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: $text=~s/\s*\-\s*//gs;
643: if ($nobreak) {
644: $inlineremote[10*$row+$col]=
645: '<a href="javascript:'.$act.';">'.$text.'</a>';
646: } else {
647: $inlineremote[10*$row+$col]="\n<br />".
648: '<a href="javascript:'.$act.';">'.$desc.'</a>';
649: }
650: } else {
651: # Inline Remote
652: if ($nobreak==2) { return ''; }
653: my $text=$top.' '.$bot;
654: $text=~s/\s*\-\s*//gs;
655: if ($nobreak==3) {
656: $inlineremote[10*$row+$col]="\n".
657: '<td width="50%" colspan="2" align="right" bgcolor="'.$tabbg.'">'.
658: '<a href="javascript:'.$act.';"><font color="'.$font.'" size="+1">'.$text.
659: '</font></a></td></tr>';
660: } elsif ($nobreak) {
661: $inlineremote[10*$row+$col]="\n<tr>".
662: '<td width="50%" colspan="2" align="left" bgcolor="'.$tabbg.'">'.
663: '<a href="javascript:'.$act.';"><font color="'.$font.'" size="+1">'.$text.
664: '</font></a></td>';
665: } else {
666: $inlineremote[10*$row+$col]="\n<tr>".
667: '<td width="50%" colspan="4" align="left" bgcolor="'.$tabbg.'">'.
668: '<a href="javascript:'.$act.';"><font color="'.$font.'">'.$desc.
669: '</font></a></td></tr>';
670: }
671: }
672: return '';
673: }
674:
675: sub secondlevel {
676: my $output='';
677: my
678: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
679: if ($prt eq 'any') {
680: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
681: } elsif ($prt=~/^r(\w+)/) {
682: if ($rol eq $1) {
683: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
684: }
685: }
686: return $output;
687: }
688:
689: sub openmenu {
690: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
691: if (($ENV{'browser.interface'} eq 'textual') ||
692: ($ENV{'environment.remote'} eq 'off')) { return ''; }
693: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
694: return "window.open(".$nothing.",'".$menuname."');";
695: }
696:
697: sub inlinemenu {
698: @inlineremote=();
699: undef @inlineremote;
700: &rawconfig(1);
701: return join('',map { (defined($_)?$_:'') } @inlineremote);
702: }
703:
704: sub rawconfig {
705: my $textualoverride=shift;
706: my $output='';
707: unless (($ENV{'browser.interface'} eq 'textual') ||
708: ($ENV{'environment.remote'} eq 'off')) {
709: $output.=
710: "window.status='Opening Remote Control';var swmenu=".&openmenu().
711: "\nwindow.status='Configuring Remote Control ';";
712: } else {
713: unless ($textualoverride) { return ''; }
714: }
715: my $uname=$ENV{'user.name'};
716: my $udom=$ENV{'user.domain'};
717: my $adv=$ENV{'user.adv'};
718: my $author=$ENV{'user.author'};
719: my $crs='';
720: if ($ENV{'request.course.id'}) {
721: $crs='/'.$ENV{'request.course.id'};
722: if ($ENV{'request.course.sec'}) {
723: $crs.='_'.$ENV{'request.course.sec'};
724: }
725: $crs=~s/\_/\//g;
726: }
727: my $pub=($ENV{'request.state'} eq 'published');
728: my $con=($ENV{'request.state'} eq 'construct');
729: my $rol=$ENV{'request.role'};
730: my $requested_domain = $ENV{'request.role.domain'};
731: foreach (@desklines) {
732: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
733: $prt=~s/\$uname/$uname/g;
734: $prt=~s/\$udom/$udom/g;
735: $prt=~s/\$crs/$crs/g;
736: $prt=~s/\$requested_domain/$requested_domain/g;
737: if ($pro eq 'clear') {
738: $output.=&clear($row,$col);
739: } elsif ($pro eq 'any') {
740: $output.=&secondlevel(
741: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
742: } elsif ($pro eq 'smp') {
743: unless ($adv) {
744: $output.=&secondlevel(
745: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
746: }
747: } elsif ($pro eq 'adv') {
748: if ($adv) {
749: $output.=&secondlevel(
750: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
751: }
752: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
753: if (&Apache::lonnet::allowed($1,$prt)) {
754: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
755: }
756: } elsif ($pro eq 'course') {
757: if ($ENV{'request.course.fn'}) {
758: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
759: }
760: } elsif ($pro =~ /^course_(.*)$/) {
761: # Check for permissions inside of a course
762: if (($ENV{'request.course.id'}) &&
763: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
764: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
765: )) {
766: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
767: }
768: } elsif ($pro eq 'author') {
769: if ($author) {
770: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
771: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
772: # Check that we are on the correct machine
773: my $cadom=$requested_domain;
774: my $caname=$ENV{'user.name'};
775: if ($prt eq 'rca') {
776: ($cadom,$caname)=
777: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
778: }
779: $act =~ s/\$caname/$caname/g;
780: my $home = &Apache::lonnet::homeserver($caname,$cadom);
781: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
782: $output.=switch($caname,$cadom,
783: $row,$col,$img,$top,$bot,$act,$desc);
784: }
785: }
786: }
787: }
788: }
789: unless (($ENV{'browser.interface'} eq 'textual') ||
790: ($ENV{'environment.remote'} eq 'off')) {
791: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
792: }
793: return $output;
794: }
795:
796: # ======================================================================= Close
797:
798: sub close {
799: if (($ENV{'browser.interface'} eq 'textual') ||
800: ($ENV{'environment.remote'} eq 'off')) { return ''; }
801: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
802: return(<<ENDCLOSE);
803: <script>
804: window.status='Accessing Remote Control';
805: menu=window.open("/adm/rat/empty.html","$menuname",
806: "height=350,width=150,scrollbars=no,menubar=no");
807: window.status='Disabling Remote Control';
808: menu.active=0;
809: menu.autologout=0;
810: window.status='Closing Remote Control';
811: menu.close();
812: window.status='Done.';
813: </script>
814: ENDCLOSE
815: }
816:
817: # ====================================================================== Footer
818:
819: sub footer {
820:
821: }
822:
823: sub utilityfunctions {
824: unless (($ENV{'browser.interface'} eq 'textual') ||
825: ($ENV{'environment.remote'} eq 'off')) { return ''; }
826: my $currenturl=$ENV{'request.noversionuri'};
827: my $currentsymb=$ENV{'request.symb'};
828: return (<<ENDUTILITY)
829:
830: var currentURL="$currenturl";
831: var reloadURL="$currenturl";
832: var currentSymb="$currentsymb";
833:
834: function go(url) {
835: if (url!='' && url!= null) {
836: currentURL = null;
837: currentSymb= null;
838: window.location.href=url;
839: }
840: }
841:
842: function gopost(url,postdata) {
843: if (url!='') {
844: this.document.server.action=url;
845: this.document.server.postdata.value=postdata;
846: this.document.server.command.value='';
847: this.document.server.url.value='';
848: this.document.server.symb.value='';
849: this.document.server.submit();
850: }
851: }
852:
853: function gocmd(url,cmd) {
854: if (url!='') {
855: this.document.server.action=url;
856: this.document.server.postdata.value='';
857: this.document.server.command.value=cmd;
858: this.document.server.url.value=currentURL;
859: this.document.server.symb.value=currentSymb;
860: this.document.server.submit();
861: }
862: }
863:
864: function catalog_info() {
865: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
866: }
867:
868: function chat_win() {
869: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
870: }
871: ENDUTILITY
872: }
873:
874: sub serverform {
875: return(<<ENDSERVERFORM);
876:
877: <form name="server" action="/adm/logout" method="post" target="_top">
878: <input type="hidden" name="postdata" value="none" />
879: <input type="hidden" name="command" value="none" />
880: <input type="hidden" name="url" value="none" />
881: <input type="hidden" name="symb" value="none" />
882: </form>
883: ENDSERVERFORM
884: }
885: # ================================================ Handler when called directly
886:
887:
888: sub handler {
889: my $r = shift;
890: &Apache::loncommon::content_type($r,'text/html');
891: $r->send_http_header;
892: return OK if $r->header_only;
893:
894: my $form=&serverform();
895: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
896: my $function='student';
897: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
898: $function='coordinator';
899: }
900: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
901: $function='admin';
902: }
903: if (($ENV{'request.role'}=~/^(au|ca)/) ||
904: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
905: $function='author';
906: }
907: my $domain=&Apache::loncommon::determinedomain();
908: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
909: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
910: $font=&Apache::loncommon::designparm($function.'.font',$domain);
911: # ---- Print the screen, pretent to be in text mode to generate text-based menu
912: unless ($ENV{'brower.interface'} eq 'textual') {
913: $ENV{'environment.remote'}='off';
914: }
915: my $utility=&utilityfunctions();
916: $r->print(<<ENDHEADER);
917: <html><head>
918: <title>LON-CAPA Main Menu</title>
919: <script>
920: $utility
921: </script>
922: </head>
923: $bodytag
924: ENDHEADER
925: $r->print('<table>'.&inlinemenu().'</table>'.$form);
926: $r->print('</body></html>');
927: return OK;
928: }
929:
930: # ================================================================ Main Program
931:
932: BEGIN {
933: if (! defined($readdesk)) {
934: {
935: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
936: '/mydesk.tab');
937: while (my $configline=<$config>) {
938: $configline=(split(/\#/,$configline))[0];
939: $configline=~s/^\s+//;
940: chomp($configline);
941: if ($configline) {
942: $desklines[$#desklines+1]=$configline;
943: }
944: }
945: }
946: $readdesk='done';
947: }
948: }
949:
950: 1;
951: __END__
952:
953:
954:
955:
956:
957:
958:
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