1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.84 2003/08/15 14:55:45 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: # ====================================== This gets called in the header section
162:
163: sub registerurl {
164: my $forcereg=shift;
165: my $target = shift;
166: my $result = '';
167: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
168: my $force_title='';
169: if ($ENV{'request.state'} eq 'construct') {
170: $force_title=&Apache::lonxml::display_title();
171: }
172: if ($target eq 'edit') {
173: $result .="<script type=\"text/javascript\">\n".
174: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
175: &Apache::loncommon::browser_and_searcher_javascript().
176: "\n</script>\n";
177: }
178: if (($ENV{'browser.interface'} eq 'textual') ||
179: ($ENV{'environment.remote'} eq 'off') ||
180: ((($ENV{'request.publicaccess'}) ||
181: (!&Apache::lonnet::is_on_map(
182: &Apache::lonnet::unescape($ENV{'REQUEST_URI'})))) &&
183: (!$forcereg))) {
184: return $result.
185: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
186: }
187: # Graphical display after login only
188: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
189: $result.=&innerregister($forcereg,$target);
190: return $result.$force_title;
191: }
192:
193: # =========== This gets called in order to register a URL, both with the Remote
194: # =========== and in the body of the document
195:
196: sub innerregister {
197: my $forcereg=shift;
198: my $target = shift;
199: my $result = '';
200: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
201:
202: $Apache::lonxml::registered=1;
203:
204: my $textinter=($ENV{'browser.interface'} eq 'textual');
205: my $noremote=($ENV{'environment.remote'} eq 'off');
206:
207: my $textual=($textinter || $noremote);
208:
209: @inlineremote=();
210: undef @inlineremote;
211:
212: my $reopen=&Apache::lonmenu::reopenmenu();
213:
214: my $newmail='';
215: if ($noremote) {
216: $newmail='<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%"><tr><td bgcolor="'.$tabbg.'">';
217: }
218: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
219: my ($mapurl,$rid,$resurl)=split(/\_\_\_/,$ENV{'request.symb'});
220: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
221: my $maptitle=&Apache::lonnet::gettitle($mapurl);
222: my $restitle=&Apache::lonnet::gettitle($resurl);
223: if ($maptitle) {
224: $newmail.=', '.$maptitle;
225: }
226: if ($restitle) {
227: $newmail.=': '.$restitle;
228: }
229: $newmail.=' ';
230: }
231: if (&Apache::lonmsg::newmail()) {
232: $newmail=($textual?
233: '<b><a href="/adm/communicate" target="_top">You have new messages</a></b><br />':
234: 'swmenu.setstatus("you have","messages");');
235: }
236: if ($noremote) {
237: $newmail.='</td></tr></table>';
238: }
239: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
240: my $tablestart=($noremote?'<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%">':'');
241: my $tableend=($noremote?'</table>':'');
242: # =============================================================================
243: # ============================ This is for URLs that actually can be registered
244: if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
245: # -- This applies to homework problems for users with grading privileges
246: my $hwkadd='';
247: if
248: ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
249: my $crs='/'.$ENV{'request.course.id'};
250: if ($ENV{'request.course.sec'}) {
251: $crs.='_'.$ENV{'request.course.sec'};
252: }
253: $crs=~s/\_/\//g;
254:
255: if (&Apache::lonnet::allowed('vgr',$crs)) {
256: $hwkadd.=&switch('','',7,1,'subm.gif','view sub-','missions',
257: "gocmd('/adm/grades','submission')",
258: 'View user submissions for this assessment resource');
259: }
260: if (&Apache::lonnet::allowed('mgr',$crs)) {
261: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem','grades',
262: "gocmd('/adm/grades','gradingmenu')",
263: 'Modify user grades for this assessment resource');
264: }
265: if (&Apache::lonnet::allowed('opa',$crs)) {
266: $hwkadd.=&switch('','',7,3,'pparm.gif','problem','parms',
267: "gocmd('/adm/parmset','set')",
268: 'Modify deadlines, etc, for this assessment resource');
269: }
270: }
271: # -- End Homework
272: ###
273: ### Determine whether or not to display the 'cstr' button for this
274: ### resource
275: ###
276: my $editbutton = '';
277: if ($ENV{'user.author'}) {
278: if ($ENV{'request.role'}=~/^(ca|au)/) {
279: # Set defaults for authors
280: my ($top,$bottom) = ('con-','struct');
281: my $action = "go('/priv/".$ENV{'user.name'}."');";
282: my $cadom = $ENV{'request.role.domain'};
283: my $caname = $ENV{'user.name'};
284: my $desc = "Enter my resource construction space";
285: # Set defaults for co-authors
286: if ($ENV{'request.role'} =~ /^ca/) {
287: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
288: ($top,$bottom) = ('co con-','struct');
289: $action = "go('/priv/".$caname."');";
290: $desc = "Enter construction space as co-author";
291: }
292: # Check that we are on the correct machine
293: my $home = &Apache::lonnet::homeserver($caname,$cadom);
294: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
295: $editbutton=&switch
296: ('','',6,1,$top,,$bottom,$action,$desc);
297: }
298: }
299: ##
300: ## Determine if user can edit url.
301: ##
302: my $cfile='';
303: my $cfuname='';
304: my $cfudom='';
305: if ($ENV{'request.filename'}) {
306: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
307: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
308: # Chech that the user has permission to edit this resource
309: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
310: if (defined($cfudom)) {
311: if (&Apache::lonnet::homeserver($cfuname,$cfudom)
312: eq $Apache::lonnet::perlvar{'lonHostID'}) {
313: $cfile=$file;
314: }
315: }
316: }
317: # Finally, turn the button on or off
318: if ($cfile) {
319: $editbutton=&switch
320: ('','',6,1,'cstr.gif','edit','resource',
321: "go('".$cfile."');","Edit this resource");
322: } elsif ($editbutton eq '') {
323: $editbutton=&clear(6,1);
324: }
325: }
326: ###
327: ###
328: # Prepare the rest of the buttons
329: my $menuitems=(<<ENDMENUITEMS);
330: c&3&1
331: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
332: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
333: c&6&3
334: c&8&1
335: c&8&2
336: s&8&3&prt.gif&prepare&printout&gopost('/adm/printout',currentURL)&Prepare a printable document
337: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
338: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
339: ENDMENUITEMS
340: unless ($ENV{'REQUEST_URI'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
341: $menuitems.=(<<ENDREALRES);
342: s&6&3&catalog.gif&catalog&info&catalog_info()&Show catalog information
343: s&8&1&eval.gif&evaluate&this&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
344: s&8&2&fdbk.gif&feedback&discuss&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
345: ENDREALRES
346: }
347: my $buttons='';
348: foreach (split(/\n/,$menuitems)) {
349: my ($command,@rest)=split(/\&/,$_);
350: if ($command eq 's') {
351: $buttons.=&switch('','',@rest);
352: } else {
353: $buttons.=&clear(@rest);
354: }
355: }
356: if ($textual) {
357: # Registered, textual output
358: my $utility=&utilityfunctions();
359: my $form=&serverform();
360: my $inlinebuttons=
361: join('',map { (defined($_)?$_:'') } @inlineremote);
362: $result =(<<ENDREGTEXT);
363: <script>
364: // BEGIN LON-CAPA Internal
365: $utility
366: </script>
367: $timesync
368: $newmail
369: $tablestart
370: $inlinebuttons
371: $tableend
372: $form
373: <script>
374: // END LON-CAPA Internal
375: </script>
376:
377: ENDREGTEXT
378: # Registered, graphical output
379: } else {
380: my $requri=&Apache::lonnet::unescape($ENV{'REQUEST_URI'});
381: $result = (<<ENDREGTHIS);
382:
383: <script language="JavaScript">
384: // BEGIN LON-CAPA Internal
385: var swmenu=null;
386:
387: function LONCAPAreg() {
388: swmenu=$reopen;
389: swmenu.clearTimeout(swmenu.menucltim);
390: $timesync
391: $newmail
392: $buttons
393: swmenu.currentURL="$requri";
394: swmenu.reloadURL=currentURL+window.location.search;
395: swmenu.currentSymb="$ENV{'request.symb'}";
396: swmenu.reloadSymb="$ENV{'request.symb'}";
397: swmenu.currentStale=0;
398: $hwkadd
399: $editbutton
400: }
401:
402: function LONCAPAstale() {
403: swmenu=$reopen
404: swmenu.currentStale=1;
405: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
406: swmenu.switchbutton
407: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
408: }
409: swmenu.clearbut(7,1);
410: swmenu.clearbut(7,2);
411: swmenu.clearbut(7,3);
412: swmenu.menucltim=swmenu.setTimeout(
413: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
414: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
415: 2000);
416: }
417:
418: // END LON-CAPA Internal
419: </script>
420: ENDREGTHIS
421: }
422: # =============================================================================
423: } else {
424: # ========================================== This can or will not be registered
425: if ($textual) {
426: # Not registered, textual
427: $result= (<<ENDDONOTREGTEXT);
428: ENDDONOTREGTEXT
429: } else {
430: # Not registered, graphical
431: $result = (<<ENDDONOTREGTHIS);
432:
433: <script language="JavaScript">
434: // BEGIN LON-CAPA Internal
435: var swmenu=null;
436:
437: function LONCAPAreg() {
438: swmenu=$reopen
439: $timesync
440: swmenu.currentStale=1;
441: swmenu.clearbut(2,1);
442: swmenu.clearbut(2,3);
443: swmenu.clearbut(8,1);
444: swmenu.clearbut(8,2);
445: swmenu.clearbut(8,3);
446: if (swmenu.currentURL) {
447: swmenu.switchbutton
448: (3,1,'reload.gif','return','location','go(currentURL)');
449: } else {
450: swmenu.clearbut(3,1);
451: }
452: }
453:
454: function LONCAPAstale() {
455: }
456:
457: // END LON-CAPA Internal
458: </script>
459: ENDDONOTREGTHIS
460: }
461: # =============================================================================
462: }
463: return $result;
464: }
465:
466: sub loadevents() {
467: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
468: return 'LONCAPAreg();';
469: }
470:
471: sub unloadevents() {
472: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
473: return 'LONCAPAstale();';
474: }
475:
476: # ============================================================= Start up remote
477:
478: sub startupremote {
479: my ($lowerurl)=@_;
480: if (($ENV{'browser.interface'} eq 'textual') ||
481: ($ENV{'environment.remote'} eq 'off')) {
482: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
483: }
484: #
485: # The Remote actually gets launched!
486: #
487: my $configmenu=&rawconfig();
488: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
489:
490: return(<<ENDREMOTESTARTUP);
491: <script>
492:
493: function wheelswitch() {
494: if (window.status=='|') {
495: window.status='/';
496: } else {
497: if (window.status=='/') {
498: window.status='-';
499: } else {
500: if (window.status=='-') {
501: window.status='\\\\';
502: } else {
503: if (window.status=='\\\\') { window.status='|'; }
504: }
505: }
506: }
507: }
508:
509: // ---------------------------------------------------------- The wait function
510: var canceltim;
511: function wait() {
512: if ((menuloaded==1) || (tim==1)) {
513: window.status='Done.';
514: if (tim==0) {
515: clearTimeout(canceltim);
516: $configmenu
517: window.location='$lowerurl';
518: } else {
519: window.location='/adm/remote?action=collapse&url=$esclowerurl';
520: }
521: } else {
522: wheelswitch();
523: setTimeout('wait();',200);
524: }
525: }
526:
527: function main() {
528: canceltim=setTimeout('tim=1;',30000);
529: window.status='-';
530: wait();
531: }
532:
533: </script>
534: ENDREMOTESTARTUP
535: }
536:
537: sub setflags() {
538: return(<<ENDSETFLAGS);
539: <script>
540: menuloaded=0;
541: tim=0;
542: </script>
543: ENDSETFLAGS
544: }
545:
546: sub maincall() {
547: if (($ENV{'browser.interface'} eq 'textual') ||
548: ($ENV{'environment.remote'} eq 'off')) { return ''; }
549: return(<<ENDMAINCALL);
550: <script>
551: main();
552: </script>
553: ENDMAINCALL
554: }
555: # ================================================================= Reopen menu
556:
557: sub reopenmenu {
558: if (($ENV{'browser.interface'} eq 'textual') ||
559: ($ENV{'environment.remote'} eq 'off')) { return ''; }
560: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
561: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
562: return('window.open('.$nothing.',"'.$menuname.'","",false);');
563: }
564:
565: # =============================================================== Open the menu
566:
567: sub open {
568: my $returnval='';
569: if (($ENV{'browser.interface'} eq 'textual') ||
570: ($ENV{'environment.remote'} eq 'off')) { return ''; }
571: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
572: unless (shift eq 'unix') {
573: # resizing does not work on linux because of virtual desktop sizes
574: $returnval.=(<<ENDRESIZE);
575: if (window.screen) {
576: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
577: self.moveTo(190,15);
578: }
579: ENDRESIZE
580: }
581: $returnval.=(<<ENDOPEN);
582: window.status='Opening LON-CAPA Remote Control';
583: var menu=window.open("/res/adm/pages/menu.html","$menuname",
584: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
585: self.name='loncapaclient';
586: ENDOPEN
587: return '<script>'.$returnval.'</script>';
588: }
589:
590:
591: # ================================================================== Raw Config
592:
593: sub clear {
594: my ($row,$col)=@_;
595: unless (($ENV{'browser.interface'} eq 'textual') ||
596: ($ENV{'environment.remote'} eq 'off')) {
597: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
598: } else {
599: $inlineremote[10*$row+$col]='';
600: return '';
601: }
602: }
603:
604: # ============================================ Switch a button or create a link
605: # Switch acts on the javascript that is executed when a button is clicked.
606: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
607:
608: sub switch {
609: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
610: $act=~s/\$uname/$uname/g;
611: $act=~s/\$udom/$udom/g;
612: unless (($ENV{'browser.interface'} eq 'textual') ||
613: ($ENV{'environment.remote'} eq 'off')) {
614: # Remote
615: return "\n".
616: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
617: } elsif ($ENV{'browser.interface'} eq 'textual') {
618: # Accessibility
619: if ($nobreak==2) { return ''; }
620: my $text=$top.' '.$bot;
621: $text=~s/\s*\-\s*//gs;
622: $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
623: '<a href="javascript:'.$act.';">'.$text.'</a> '.
624: ($nobreak?'':$desc);
625: } else {
626: # Inline Remote
627: if ($nobreak==2) { return ''; }
628: my $text=$top.' '.$bot;
629: $text=~s/\s*\-\s*//gs;
630: $inlineremote[10*$row+$col]="\n".
631: ($nobreak==3?'<td width="50%" colspan="2" align="right"':'<tr><td').
632: ' bgcolor="'.$tabbg.'"'.($nobreak==1?' width="50%" colspan="2"':'').
633: '"><a href="javascript:'.$act.';"><font color="'.$font.'"'.
634: ($nobreak?' size="+1"':'').
635: '>'.$text.'</font></a></td>'.
636: ($nobreak?'':'<td colspan="3" width="80%"><font color="'.$font.'" size="-1">'.$desc.'</font>').($nobreak!=1?'</tr>':'');
637: }
638: return '';
639: }
640:
641: sub secondlevel {
642: my $output='';
643: my
644: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
645: if ($prt eq 'any') {
646: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
647: } elsif ($prt=~/^r(\w+)/) {
648: if ($rol eq $1) {
649: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
650: }
651: }
652: return $output;
653: }
654:
655: sub openmenu {
656: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
657: if (($ENV{'browser.interface'} eq 'textual') ||
658: ($ENV{'environment.remote'} eq 'off')) { return ''; }
659: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
660: return "window.open(".$nothing.",'".$menuname."');";
661: }
662:
663: sub inlinemenu {
664: @inlineremote=();
665: undef @inlineremote;
666: &rawconfig(1);
667: return join('',map { (defined($_)?$_:'') } @inlineremote);
668: }
669:
670: sub rawconfig {
671: my $textualoverride=shift;
672: my $output='';
673: unless (($ENV{'browser.interface'} eq 'textual') ||
674: ($ENV{'environment.remote'} eq 'off')) {
675: $output.=
676: "window.status='Opening Remote Control';var swmenu=".&openmenu().
677: "\nwindow.status='Configuring Remote Control ';";
678: } else {
679: unless ($textualoverride) { return ''; }
680: }
681: my $uname=$ENV{'user.name'};
682: my $udom=$ENV{'user.domain'};
683: my $adv=$ENV{'user.adv'};
684: my $author=$ENV{'user.author'};
685: my $crs='';
686: if ($ENV{'request.course.id'}) {
687: $crs='/'.$ENV{'request.course.id'};
688: if ($ENV{'request.course.sec'}) {
689: $crs.='_'.$ENV{'request.course.sec'};
690: }
691: $crs=~s/\_/\//g;
692: }
693: my $pub=($ENV{'request.state'} eq 'published');
694: my $con=($ENV{'request.state'} eq 'construct');
695: my $rol=$ENV{'request.role'};
696: my $requested_domain = $ENV{'request.role.domain'};
697: foreach (@desklines) {
698: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
699: $prt=~s/\$uname/$uname/g;
700: $prt=~s/\$udom/$udom/g;
701: $prt=~s/\$crs/$crs/g;
702: $prt=~s/\$requested_domain/$requested_domain/g;
703: if ($pro eq 'clear') {
704: $output.=&clear($row,$col);
705: } elsif ($pro eq 'any') {
706: $output.=&secondlevel(
707: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
708: } elsif ($pro eq 'smp') {
709: unless ($adv) {
710: $output.=&secondlevel(
711: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
712: }
713: } elsif ($pro eq 'adv') {
714: if ($adv) {
715: $output.=&secondlevel(
716: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
717: }
718: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
719: if (&Apache::lonnet::allowed($1,$prt)) {
720: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
721: }
722: } elsif ($pro eq 'course') {
723: if ($ENV{'request.course.fn'}) {
724: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
725: }
726: } elsif ($pro =~ /^course_(.*)$/) {
727: # Check for permissions inside of a course
728: if (($ENV{'request.course.id'}) &&
729: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
730: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
731: )) {
732: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
733: }
734: } elsif ($pro eq 'author') {
735: if ($author) {
736: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
737: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
738: # Check that we are on the correct machine
739: my $cadom=$requested_domain;
740: my $caname=$ENV{'user.name'};
741: if ($prt eq 'rca') {
742: ($cadom,$caname)=
743: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
744: }
745: $act =~ s/\$caname/$caname/g;
746: my $home = &Apache::lonnet::homeserver($caname,$cadom);
747: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
748: $output.=switch($caname,$cadom,
749: $row,$col,$img,$top,$bot,$act,$desc);
750: }
751: }
752: }
753: }
754: }
755: unless (($ENV{'browser.interface'} eq 'textual') ||
756: ($ENV{'environment.remote'} eq 'off')) {
757: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
758: }
759: return $output;
760: }
761:
762: # ======================================================================= Close
763:
764: sub close {
765: if (($ENV{'browser.interface'} eq 'textual') ||
766: ($ENV{'environment.remote'} eq 'off')) { return ''; }
767: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
768: return(<<ENDCLOSE);
769: <script>
770: window.status='Accessing Remote Control';
771: menu=window.open("/adm/rat/empty.html","$menuname",
772: "height=350,width=150,scrollbars=no,menubar=no");
773: window.status='Disabling Remote Control';
774: menu.active=0;
775: menu.autologout=0;
776: window.status='Closing Remote Control';
777: menu.close();
778: window.status='Done.';
779: </script>
780: ENDCLOSE
781: }
782:
783: # ====================================================================== Footer
784:
785: sub footer {
786:
787: }
788:
789: sub utilityfunctions {
790: unless (($ENV{'browser.interface'} eq 'textual') ||
791: ($ENV{'environment.remote'} eq 'off')) { return ''; }
792: my $currenturl=$ENV{'REQUEST_URI'};
793: my $currentsymb=$ENV{'request.symb'};
794: return (<<ENDUTILITY)
795:
796: var currentURL="$currenturl";
797: var reloadURL="$currenturl";
798: var currentSymb="$currentsymb";
799:
800: function go(url) {
801: if (url!='' && url!= null) {
802: currentURL = null;
803: currentSymb= null;
804: window.location.href=url;
805: }
806: }
807:
808: function gopost(url,postdata) {
809: if (url!='') {
810: this.document.server.action=url;
811: this.document.server.postdata.value=postdata;
812: this.document.server.command.value='';
813: this.document.server.url.value='';
814: this.document.server.symb.value='';
815: this.document.server.submit();
816: }
817: }
818:
819: function gocmd(url,cmd) {
820: if (url!='') {
821: this.document.server.action=url;
822: this.document.server.postdata.value='';
823: this.document.server.command.value=cmd;
824: this.document.server.url.value=currentURL;
825: this.document.server.symb.value=currentSymb;
826: this.document.server.submit();
827: }
828: }
829:
830: function catalog_info() {
831: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
832: }
833:
834: function chat_win() {
835: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
836: }
837: ENDUTILITY
838: }
839:
840: sub serverform {
841: return(<<ENDSERVERFORM);
842:
843: <form name="server" action="/adm/logout" method="post" target="_top">
844: <input type="hidden" name="postdata" value="none" />
845: <input type="hidden" name="command" value="none" />
846: <input type="hidden" name="url" value="none" />
847: <input type="hidden" name="symb" value="none" />
848: </form>
849: ENDSERVERFORM
850: }
851: # ================================================ Handler when called directly
852:
853:
854: sub handler {
855: my $r = shift;
856: $r->content_type('text/html');
857: $r->send_http_header;
858: return OK if $r->header_only;
859:
860: my $form=&serverform();
861: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
862: my $function='student';
863: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
864: $function='coordinator';
865: }
866: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
867: $function='admin';
868: }
869: if (($ENV{'request.role'}=~/^(au|ca)/) ||
870: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
871: $function='author';
872: }
873: my $domain=&Apache::loncommon::determinedomain();
874: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
875: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
876: $font=&Apache::loncommon::designparm($function.'.font',$domain);
877: # ---- Print the screen, pretent to be in text mode to generate text-based menu
878: unless ($ENV{'brower.interface'} eq 'textual') {
879: $ENV{'environment.remote'}='off';
880: }
881: my $utility=&utilityfunctions();
882: $r->print(<<ENDHEADER);
883: <html><head>
884: <title>LON-CAPA Main Menu</title>
885: <script>
886: $utility
887: </script>
888: </head>
889: $bodytag
890: ENDHEADER
891: $r->print('<table>'.&inlinemenu().'</table>'.$form);
892: $r->print('</body></html>');
893: return OK;
894: }
895:
896: # ================================================================ Main Program
897:
898: BEGIN {
899: if (! defined($readdesk)) {
900: {
901: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
902: '/mydesk.tab');
903: while (my $configline=<$config>) {
904: $configline=(split(/\#/,$configline))[0];
905: $configline=~s/^\s+//;
906: chomp($configline);
907: if ($configline) {
908: $desklines[$#desklines+1]=$configline;
909: }
910: }
911: }
912: $readdesk='done';
913: }
914: }
915:
916: 1;
917: __END__
918:
919:
920:
921:
922:
923:
924:
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