1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.72 2003/05/27 15:50:29 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 vars qw(@desklines $readdesk);
48: my @inlineremote;
49: my $font;
50: my $tabbg;
51: my $pgbg;
52:
53: # ============================= This gets called at the top of the body section
54:
55: sub menubuttons {
56: my $forcereg=shift;
57: my $target =shift;
58: my $registration=shift;
59: my $navmaps='';
60: my $reloadlink='';
61: my $escurl=&Apache::lonnet::escape($ENV{'REQUEST_URI'});
62: my $escsymb=&Apache::lonnet::escape($ENV{'request.symb'});
63: if ($ENV{'browser.interface'} eq 'textual') {
64: # Textual display only
65: if ($ENV{'request.course.id'}) {
66: $navmaps=(<<ENDNAV);
67: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">Navigate Contents</a>
68: ENDNAV
69: if (($ENV{'REQUEST_URI'}=~/^\/adm\//) &&
70: ($ENV{'REQUEST_URI'}!~/^\/adm\/wrapper\//) &&
71: ($ENV{'REQUEST_URI'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
72: my $escreload=&Apache::lonnet::escape('return:');
73: $reloadlink=(<<ENDRELOAD);
74: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">Return to Last Location</font></a>
75: ENDRELOAD
76: }
77: }
78: my $output=(<<ENDMAINMENU);
79: <script>
80: // BEGIN LON-CAPA Internal
81: </script>
82: <a href="/adm/menu" target="_top">Main Menu</a>
83: $reloadlink $navmaps<br />
84: <script>
85: // END LON-CAPA Internal
86: </script>
87: ENDMAINMENU
88: if ($registration) { $output.=&innerregister($forcereg,$target); }
89: return $output."<hr />";
90: } elsif ($ENV{'environment.remote'} eq 'off') {
91: # Remote Control is switched off
92: # figure out colors
93: my $function='student';
94: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
95: $function='coordinator';
96: }
97: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
98: $function='admin';
99: }
100: if (($ENV{'request.role'}=~/^(au|ca)/) ||
101: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
102: $function='author';
103: }
104: my $domain=&Apache::loncommon::determinedomain();
105: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
106: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
107: $font=&Apache::loncommon::designparm($function.'.font',$domain);
108: my $link=&Apache::loncommon::designparm($function.'.link',$domain);
109: my $alink=&Apache::loncommon::designparm($function.'.alink',$domain);
110: my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain);
111: my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain);
112: # Do we have a NAV link?
113: if ($ENV{'request.course.id'}) {
114: $navmaps=(<<ENDNAVREM);
115: <td bgcolor="$tabbg">
116: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top"><font color="$font">Navigate Contents</font></a></td>
117: ENDNAVREM
118: if (($ENV{'REQUEST_URI'}=~/^\/adm\//) &&
119: ($ENV{'REQUEST_URI'}!~/^\/adm\/wrapper\//) &&
120: ($ENV{'REQUEST_URI'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
121: my $escreload=&Apache::lonnet::escape('return:');
122: $reloadlink=(<<ENDRELOAD);
123: <td bgcolor="$tabbg">
124: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">Return to Last Location</font></a></td>
125: ENDRELOAD
126: }
127: }
128: my $reg='';
129: if ($registration) {
130: $reg=&innerregister($forcereg,$target);
131: }
132: return (<<ENDINLINEMENU);
133: <script>
134: // BEGIN LON-CAPA Internal
135: </script>
136: <table bgcolor="$pgbg" width="100%" border="0" cellpadding="3" cellspacing="3">
137: <tr>
138: <td bgcolor="$tabbg">
139: <a href="/adm/menu" target="_top"><font color="$font">Main Menu</font></a>
140: </td>
141: $reloadlink
142: $navmaps
143: <td bgcolor="$tabbg">
144: <a href="/adm/remote?action=launch&url=$escurl" target="_top">
145: <font color="$font">Launch Remote Control</font></a></td>
146: <td bgcolor="$tabbg">
147: <img align="right" src="/adm/lonIcons/minilogo.gif" />
148: <b>LON-CAPA</b></td>
149: </tr>
150: </table>
151: <script>
152: // END LON-CAPA Internal
153: </script>
154: $reg
155: ENDINLINEMENU
156: } else {
157: return '';
158: }
159: }
160:
161: # ===== Early call to LONCAPAreg for long-running pages, preferably used right
162: # ===== before $r->rflush()
163:
164: sub regflush {
165: return '<script type="text/javascript">'.&loadevents.'</script>';
166: }
167:
168: # ====================================== This gets called in the header section
169:
170: sub registerurl {
171: my $forcereg=shift;
172: my $target = shift;
173: my $result = '';
174: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
175: my $force_title='';
176: if ($ENV{'request.state'} eq 'construct') {
177: $force_title=&Apache::lonxml::display_title();
178: }
179: if ($target eq 'edit') {
180: $result .="<script type=\"text/javascript\">\n".
181: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
182: &Apache::loncommon::browser_and_searcher_javascript().
183: "\n</script>\n";
184: }
185: if (($ENV{'browser.interface'} eq 'textual') ||
186: ($ENV{'environment.remote'} eq 'off') ||
187: ((($ENV{'request.publicaccess'}) ||
188: (!&Apache::lonnet::is_on_map($ENV{'REQUEST_URI'}))) &&
189: (!$forcereg))) {
190: my $loadfunction='';
191: my $unloadfunction='';
192: unless (($ENV{'browser.interface'} eq 'textual') ||
193: ($ENV{'environment.remote'} eq 'off') ||
194: ($ENV{'request.publicaccess'})) {
195: my $reopen=&Apache::lonmenu::reopenmenu();
196: $loadfunction='swmenu='.$reopen.'swmenu.windowloaded(self.name);';
197: $unloadfunction='swmenu='.$reopen.'swmenu.windowunloaded(self.name);';
198: }
199: return $result.(<<ENDFUNCTIONS);
200: <script type="text/javascript">
201: function LONCAPAreg() {
202: $loadfunction
203: }
204:
205: function LONCAPAstale() {
206: $unloadfunction
207: }
208: </script>
209: $force_title
210: ENDFUNCTIONS
211: }
212: # Graphical display after login only
213: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
214: $result.=&innerregister($forcereg,$target);
215: return $result.$force_title;
216: }
217:
218: # =========== This gets called in order to register a URL, both with the Remote
219: # =========== and in the body of the document
220:
221: sub innerregister {
222: my $forcereg=shift;
223: my $target = shift;
224: my $result = '';
225: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
226:
227: $Apache::lonxml::registered=1;
228:
229: my $textinter=($ENV{'browser.interface'} eq 'textual');
230: my $noremote=($ENV{'environment.remote'} eq 'off');
231:
232: my $textual=($textinter || $noremote);
233:
234: @inlineremote=();
235: undef @inlineremote;
236:
237: my $reopen=&Apache::lonmenu::reopenmenu();
238:
239: my $newmail='';
240: if ($noremote) {
241: $newmail='<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%"><tr><td bgcolor="'.$tabbg.'">';
242: }
243: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
244: my ($mapurl,$rid,$resurl)=split(/\_\_\_/,$ENV{'request.symb'});
245: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
246: my $maptitle=&Apache::lonnet::gettitle($mapurl);
247: my $restitle=&Apache::lonnet::gettitle($resurl);
248: if ($maptitle) {
249: $newmail.=', '.$maptitle;
250: }
251: if ($restitle) {
252: $newmail.=': '.$restitle;
253: }
254: $newmail.=' ';
255: }
256: if (&Apache::lonmsg::newmail()) {
257: $newmail=($textual?
258: '<b><a href="/adm/communicate">You have new messages</a></b><br />':
259: 'swmenu.setstatus("you have","messages");');
260: }
261: if ($noremote) {
262: $newmail.='</td></tr></table>';
263: }
264: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
265: my $tablestart=($noremote?'<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%">':'');
266: my $tableend=($noremote?'</table>':'');
267: # =============================================================================
268: # ============================ This is for URLs that actually can be registered
269: if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
270: # -- This applies to homework problems for users with grading privileges
271: my $hwkadd='';
272: if
273: ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
274: if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
275: $hwkadd.=&switch('','',7,1,'subm.gif','view sub','missions',
276: "gocmd('/adm/grades','submission')",
277: 'View user submissions for this assessment resource');
278: }
279: if (&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})) {
280: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem','grades',
281: "gocmd('/adm/grades','gradingmenu')",
282: 'Modify user grades for this assessment resource');
283: }
284: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
285: $hwkadd.=&switch('','',7,3,'pparm.gif','problem','parms',
286: "gocmd('/adm/parmset','set')",
287: 'Modify deadlines, etc, for this assessment resource');
288: }
289: }
290: # -- End Homework
291: ###
292: ### Determine whether or not to display the 'cstr' button for this
293: ### resource
294: ###
295: my $editbutton = '';
296: if ($ENV{'user.author'}) {
297: if ($ENV{'request.role'}=~/^(ca|au)/) {
298: # Set defaults for authors
299: my ($top,$bottom) = ('con-','struct');
300: my $action = "go('/priv/".$ENV{'user.name'}."');";
301: my $cadom = $ENV{'request.role.domain'};
302: my $caname = $ENV{'user.name'};
303: my $desc = "Enter my resource construction space";
304: # Set defaults for co-authors
305: if ($ENV{'request.role'} =~ /^ca/) {
306: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
307: ($top,$bottom) = ('co con-','struct');
308: $action = "go('/priv/".$caname."');";
309: $desc = "Enter construction space as co-author";
310: }
311: # Check that we are on the correct machine
312: my $home = &Apache::lonnet::homeserver($caname,$cadom);
313: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
314: $editbutton=&switch
315: ('','',6,1,$top,,$bottom,$action,$desc);
316: }
317: }
318: ##
319: ## Determine if user can edit url.
320: ##
321: my $cfile='';
322: my $cfuname='';
323: my $cfudom='';
324: if ($ENV{'request.filename'}) {
325: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
326: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
327: # Chech that the user has permission to edit this resource
328: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
329: if (defined($cfudom)) {
330: if (&Apache::lonnet::homeserver($cfuname,$cfudom)
331: eq $Apache::lonnet::perlvar{'lonHostID'}) {
332: $cfile=$file;
333: }
334: }
335: }
336: # Finally, turn the button on or off
337: if ($cfile) {
338: $editbutton=&switch
339: ('','',6,1,'cstr.gif','edit','resource',
340: "go('".$cfile."');","Edit this resource");
341: } elsif ($editbutton eq '') {
342: $editbutton=&clear(6,1);
343: }
344: }
345: ###
346: ###
347: # Prepare the rest of the buttons
348: my $menuitems=(<<ENDMENUITEMS);
349: c&3&1
350: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
351: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
352: s&6&3&catalog.gif&catalog&info&catalog_info()&Show catalog information
353: s&8&1&eval.gif&evaluate&this&gopost('/adm/evaluate',currentURL)&Provide my evaluation of this resource
354: s&8&2&fdbk.gif&feedback&discuss&gopost('/adm/feedback',currentURL)&Provide feedback messages or contribute to the course discussion about this resource
355: s&8&3&prt.gif&prepare&printout&gopost('/adm/printout',currentURL)&Prepare a printable document
356: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
357: s&9&2&vbkm.gif&view&bookmark&edit_bookmarks()&Use or edit my bookmark collection&2
358: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
359: ENDMENUITEMS
360: my $buttons='';
361: foreach (split(/\n/,$menuitems)) {
362: my ($command,@rest)=split(/\&/,$_);
363: if ($command eq 's') {
364: $buttons.=&switch('','',@rest);
365: } else {
366: $buttons.=&clear(@rest);
367: }
368: }
369: if ($textual) {
370: # Registered, textual output
371: my $utility=&utilityfunctions();
372: my $form=&serverform();
373: my $inlinebuttons=
374: join('',map { (defined($_)?$_:'') } @inlineremote);
375: $result =(<<ENDREGTEXT);
376: <script>
377: // BEGIN LON-CAPA Internal
378: $utility
379: </script>
380: $timesync
381: $newmail
382: $tablestart
383: $inlinebuttons
384: $tableend
385: $form
386: <script>
387: // END LON-CAPA Internal
388: </script>
389:
390: ENDREGTEXT
391: # Registered, graphical output
392: } else {
393: $result = (<<ENDREGTHIS);
394:
395: <script language="JavaScript">
396: // BEGIN LON-CAPA Internal
397: var swmenu=null;
398:
399: function LONCAPAreg() {
400: swmenu=$reopen;
401: swmenu.windowloaded(self.name);
402: swmenu.clearTimeout(swmenu.menucltim);
403: $timesync
404: $newmail
405: $buttons
406: swmenu.currentURL=window.location.pathname;
407: swmenu.reloadURL=window.location.pathname+window.location.search;
408: swmenu.currentSymb="$ENV{'request.symb'}";
409: swmenu.reloadSymb="$ENV{'request.symb'}";
410: swmenu.currentStale=0;
411: $hwkadd
412: $editbutton
413: }
414:
415: function LONCAPAstale() {
416: swmenu=$reopen
417: swmenu.currentStale=1;
418: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
419: swmenu.switchbutton
420: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
421: }
422: swmenu.clearbut(7,1);
423: swmenu.clearbut(7,2);
424: swmenu.clearbut(7,3);
425: swmenu.menucltim=swmenu.setTimeout(
426: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
427: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
428: 2000);
429: swmenu.windowunloaded(self.name);
430: }
431:
432: // END LON-CAPA Internal
433: </script>
434: ENDREGTHIS
435: }
436: # =============================================================================
437: } else {
438: # ========================================== This can or will not be registered
439: if ($textual) {
440: # Not registered, textual
441: $result= (<<ENDDONOTREGTEXT);
442: ENDDONOTREGTEXT
443: } else {
444: # Not registered, graphical
445: $result = (<<ENDDONOTREGTHIS);
446:
447: <script language="JavaScript">
448: // BEGIN LON-CAPA Internal
449: var swmenu=null;
450:
451: function LONCAPAreg() {
452: swmenu=$reopen
453: swmenu.windowloaded(self.name);
454: $timesync
455: swmenu.currentStale=1;
456: swmenu.clearbut(2,1);
457: swmenu.clearbut(2,3);
458: swmenu.clearbut(8,1);
459: swmenu.clearbut(8,2);
460: swmenu.clearbut(8,3);
461: if (swmenu.currentURL) {
462: swmenu.switchbutton
463: (3,1,'reload.gif','return','location','go(currentURL)');
464: } else {
465: swmenu.clearbut(3,1);
466: }
467: }
468:
469: function LONCAPAstale() {
470: swmenu=$reopen
471: swmenu.windowunloaded(self.name);
472: }
473:
474: // END LON-CAPA Internal
475: </script>
476: ENDDONOTREGTHIS
477: }
478: # =============================================================================
479: }
480: return $result;
481: }
482:
483: sub loadevents() {
484: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
485: return 'LONCAPAreg();';
486: }
487:
488: sub unloadevents() {
489: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
490: return 'LONCAPAstale();';
491: }
492:
493: # ============================================================= Start up remote
494:
495: sub startupremote {
496: my ($lowerurl)=@_;
497: if (($ENV{'browser.interface'} eq 'textual') ||
498: ($ENV{'environment.remote'} eq 'off')) {
499: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
500: }
501: #
502: # The Remote actually gets launched!
503: #
504: my $configmenu=&rawconfig();
505: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
506:
507: return(<<ENDREMOTESTARTUP);
508: <script>
509:
510: function wheelswitch() {
511: if (window.status=='|') {
512: window.status='/';
513: } else {
514: if (window.status=='/') {
515: window.status='-';
516: } else {
517: if (window.status=='-') {
518: window.status='\\\\';
519: } else {
520: if (window.status=='\\\\') { window.status='|'; }
521: }
522: }
523: }
524: }
525:
526: // ---------------------------------------------------------- The wait function
527: var canceltim;
528: function wait() {
529: if ((menuloaded==1) || (tim==1)) {
530: window.status='Done.';
531: if (tim==0) {
532: clearTimeout(canceltim);
533: $configmenu
534: window.location='$lowerurl';
535: } else {
536: window.location='/adm/remote?action=collapse&url=$esclowerurl';
537: }
538: } else {
539: wheelswitch();
540: setTimeout('wait();',200);
541: }
542: }
543:
544: function main() {
545: canceltim=setTimeout('tim=1;',30000);
546: window.status='-';
547: wait();
548: }
549:
550: </script>
551: ENDREMOTESTARTUP
552: }
553:
554: sub setflags() {
555: return(<<ENDSETFLAGS);
556: <script>
557: menuloaded=0;
558: tim=0;
559: </script>
560: ENDSETFLAGS
561: }
562:
563: sub maincall() {
564: if (($ENV{'browser.interface'} eq 'textual') ||
565: ($ENV{'environment.remote'} eq 'off')) { return ''; }
566: return(<<ENDMAINCALL);
567: <script>
568: main();
569: </script>
570: ENDMAINCALL
571: }
572: # ================================================================= Reopen menu
573:
574: sub reopenmenu {
575: if (($ENV{'browser.interface'} eq 'textual') ||
576: ($ENV{'environment.remote'} eq 'off')) { return ''; }
577: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
578: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
579: return('window.open('.$nothing.',"'.$menuname.'","",false);');
580: }
581:
582: # =============================================================== Open the menu
583:
584: sub open {
585: my $returnval='';
586: if (($ENV{'browser.interface'} eq 'textual') ||
587: ($ENV{'environment.remote'} eq 'off')) { return ''; }
588: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
589: unless (shift eq 'unix') {
590: # resizing does not work on linux because of virtual desktop sizes
591: $returnval.=(<<ENDRESIZE);
592: if (window.screen) {
593: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
594: self.moveTo(190,15);
595: }
596: ENDRESIZE
597: }
598: $returnval.=(<<ENDOPEN);
599: window.status='Opening LON-CAPA Remote Control';
600: var menu=window.open("/res/adm/pages/menu.html","$menuname",
601: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
602: self.name='loncapaclient';
603: ENDOPEN
604: return '<script>'.$returnval.'</script>';
605: }
606:
607:
608: # ================================================================== Raw Config
609:
610: sub clear {
611: my ($row,$col)=@_;
612: unless (($ENV{'browser.interface'} eq 'textual') ||
613: ($ENV{'environment.remote'} eq 'off')) {
614: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
615: } else {
616: $inlineremote[10*$row+$col]='';
617: return '';
618: }
619: }
620:
621: # ============================================ Switch a button or create a link
622: # Switch acts on the javascript that is executed when a button is clicked.
623: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
624:
625: sub switch {
626: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
627: $act=~s/\$uname/$uname/g;
628: $act=~s/\$udom/$udom/g;
629: unless (($ENV{'browser.interface'} eq 'textual') ||
630: ($ENV{'environment.remote'} eq 'off')) {
631: # Remote
632: return "\n".
633: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
634: } elsif ($ENV{'browser.interface'} eq 'textual') {
635: # Accessibility
636: if ($nobreak==2) { return ''; }
637: my $text=$top.' '.$bot;
638: $text=~s/\- //;
639: $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
640: '<a href="javascript:'.$act.';">'.$text.'</a> '.
641: ($nobreak?'':$desc);
642: } else {
643: # Inline Remote
644: if ($nobreak==2) { return ''; }
645: my $text=$top.' '.$bot;
646: $text=~s/\- //;
647: $inlineremote[10*$row+$col]="\n".
648: ($nobreak==3?'<td width="50%" colspan="2" align="right"':'<tr><td').
649: ' bgcolor="'.$tabbg.'"'.($nobreak==1?' width="50%" colspan="2"':'').
650: '"><a href="javascript:'.$act.';"><font color="'.$font.'"'.
651: ($nobreak?' size="+1"':'').
652: '>'.$text.'</font></a></td>'.
653: ($nobreak?'':'<td colspan="3" width="80%"><font color="'.$font.'" size="-1">'.$desc.'</font>').($nobreak!=1?'</tr>':'');
654: }
655: return '';
656: }
657:
658: sub secondlevel {
659: my $output='';
660: my
661: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
662: if ($prt eq 'any') {
663: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
664: } elsif ($prt=~/^r(\w+)/) {
665: if ($rol eq $1) {
666: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
667: }
668: }
669: return $output;
670: }
671:
672: sub openmenu {
673: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
674: if (($ENV{'browser.interface'} eq 'textual') ||
675: ($ENV{'environment.remote'} eq 'off')) { return ''; }
676: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
677: return "window.open(".$nothing.",'".$menuname."');";
678: }
679:
680: sub inlinemenu {
681: @inlineremote=();
682: undef @inlineremote;
683: &rawconfig(1);
684: return join('',map { (defined($_)?$_:'') } @inlineremote);
685: }
686:
687: sub rawconfig {
688: my $textualoverride=shift;
689: my $output='';
690: unless (($ENV{'browser.interface'} eq 'textual') ||
691: ($ENV{'environment.remote'} eq 'off')) {
692: $output.=
693: "window.status='Opening Remote Control';var swmenu=".&openmenu().
694: "\nwindow.status='Configuring Remote Control ';";
695: } else {
696: unless ($textualoverride) { return ''; }
697: }
698: my $uname=$ENV{'user.name'};
699: my $udom=$ENV{'user.domain'};
700: my $adv=$ENV{'user.adv'};
701: my $author=$ENV{'user.author'};
702: my $crs='';
703: if ($ENV{'request.course.id'}) {
704: $crs='/'.$ENV{'request.course.id'};
705: if ($ENV{'request.course.sec'}) {
706: $crs.='_'.$ENV{'request.course.sec'};
707: }
708: $crs=~s/\_/\//g;
709: }
710: my $pub=($ENV{'request.state'} eq 'published');
711: my $con=($ENV{'request.state'} eq 'construct');
712: my $rol=$ENV{'request.role'};
713: my $requested_domain = $ENV{'request.role.domain'};
714: foreach (@desklines) {
715: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
716: $prt=~s/\$uname/$uname/g;
717: $prt=~s/\$udom/$udom/g;
718: $prt=~s/\$crs/$crs/g;
719: $prt=~s/\$requested_domain/$requested_domain/g;
720: if ($pro eq 'clear') {
721: $output.=&clear($row,$col);
722: } elsif ($pro eq 'any') {
723: $output.=&secondlevel(
724: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
725: } elsif ($pro eq 'smp') {
726: unless ($adv) {
727: $output.=&secondlevel(
728: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
729: }
730: } elsif ($pro eq 'adv') {
731: if ($adv) {
732: $output.=&secondlevel(
733: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
734: }
735: } elsif (($pro=~/p(\w+)/) && ($prt)) {
736: if (&Apache::lonnet::allowed($1,$prt)) {
737: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
738: }
739: } elsif ($pro eq 'course') {
740: if ($ENV{'request.course.fn'}) {
741: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
742: }
743: } elsif ($pro eq 'author') {
744: if ($author) {
745: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
746: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
747: # Check that we are on the correct machine
748: my $cadom=$requested_domain;
749: my $caname=$ENV{'user.name'};
750: if ($prt eq 'rca') {
751: ($cadom,$caname)=
752: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
753: }
754: $act =~ s/\$caname/$caname/g;
755: my $home = &Apache::lonnet::homeserver($caname,$cadom);
756: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
757: $output.=switch($caname,$cadom,
758: $row,$col,$img,$top,$bot,$act,$desc);
759: }
760: }
761: }
762: }
763: }
764: unless (($ENV{'browser.interface'} eq 'textual') ||
765: ($ENV{'environment.remote'} eq 'off')) {
766: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
767: }
768: return $output;
769: }
770:
771: # ======================================================================= Close
772:
773: sub close {
774: if (($ENV{'browser.interface'} eq 'textual') ||
775: ($ENV{'environment.remote'} eq 'off')) { return ''; }
776: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
777: return(<<ENDCLOSE);
778: <script>
779: window.status='Accessing Remote Control';
780: menu=window.open("/adm/rat/empty.html","$menuname",
781: "height=350,width=150,scrollbars=no,menubar=no");
782: window.status='Disabling Remote Control';
783: menu.active=0;
784: menu.autologout=0;
785: window.status='Closing Remote Control';
786: menu.close();
787: window.status='Done.';
788: </script>
789: ENDCLOSE
790: }
791:
792: # ====================================================================== Footer
793:
794: sub footer {
795:
796: }
797:
798: sub utilityfunctions {
799: unless (($ENV{'browser.interface'} eq 'textual') ||
800: ($ENV{'environment.remote'} eq 'off')) { return ''; }
801: my $currenturl=$ENV{'REQUEST_URI'};
802: my $currentsymb=$ENV{'request.symb'};
803: return (<<ENDUTILITY)
804:
805: var currentURL="$currenturl";
806: var reloadURL="$currenturl";
807: var currentSymb="$currentsymb";
808:
809: function go(url) {
810: if (url!='' && url!= null) {
811: currentURL = null;
812: currentSymb= null;
813: window.location.href=url;
814: }
815: }
816:
817: function gopost(url,postdata) {
818: if (url!='') {
819: this.document.server.action=url;
820: this.document.server.postdata.value=postdata;
821: this.document.server.command.value='';
822: this.document.server.url.value='';
823: this.document.server.symb.value='';
824: this.document.server.submit();
825: }
826: }
827:
828: function gocmd(url,cmd) {
829: if (url!='') {
830: this.document.server.action=url;
831: this.document.server.postdata.value='';
832: this.document.server.command.value=cmd;
833: this.document.server.url.value=currentURL;
834: this.document.server.symb.value=currentSymb;
835: this.document.server.submit();
836: }
837: }
838:
839: function catalog_info() {
840: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
841: }
842:
843: function chat_win() {
844: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
845: }
846: ENDUTILITY
847: }
848:
849: sub serverform {
850: return(<<ENDSERVERFORM);
851:
852: <form name="server" action="/adm/logout" method="post" target="_top">
853: <input type="hidden" name="postdata" value="none" />
854: <input type="hidden" name="command" value="none" />
855: <input type="hidden" name="url" value="none" />
856: <input type="hidden" name="symb" value="none" />
857: </form>
858: ENDSERVERFORM
859: }
860: # ================================================ Handler when called directly
861:
862:
863: sub handler {
864: my $r = shift;
865: $r->content_type('text/html');
866: $r->send_http_header;
867: return OK if $r->header_only;
868:
869: my $form=&serverform();
870: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
871: my $function='student';
872: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
873: $function='coordinator';
874: }
875: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
876: $function='admin';
877: }
878: if (($ENV{'request.role'}=~/^(au|ca)/) ||
879: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
880: $function='author';
881: }
882: my $domain=&Apache::loncommon::determinedomain();
883: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
884: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
885: $font=&Apache::loncommon::designparm($function.'.font',$domain);
886: # ---- Print the screen, pretent to be in text mode to generate text-based menu
887: unless ($ENV{'brower.interface'} eq 'textual') {
888: $ENV{'environment.remote'}='off';
889: }
890: my $utility=&utilityfunctions();
891: $r->print(<<ENDHEADER);
892: <html><head>
893: <title>LON-CAPA Main Menu</title>
894: <script>
895: $utility
896: </script>
897: </head>
898: $bodytag
899: ENDHEADER
900: $r->print('<table>'.&inlinemenu().'</table>'.$form);
901: $r->print('</body></html>');
902: return OK;
903: }
904:
905: # ================================================================ Main Program
906:
907: BEGIN {
908: if (! defined($readdesk)) {
909: {
910: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
911: '/mydesk.tab');
912: while (my $configline=<$config>) {
913: $configline=(split(/\#/,$configline))[0];
914: $configline=~s/^\s+//;
915: chomp($configline);
916: if ($configline) {
917: $desklines[$#desklines+1]=$configline;
918: }
919: }
920: }
921: $readdesk='done';
922: }
923: }
924:
925: 1;
926: __END__
927:
928:
929:
930:
931:
932:
933:
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