1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.76 2003/06/06 02:24:49 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($ENV{'REQUEST_URI'}))) &&
182: (!$forcereg))) {
183: return $result.
184: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
185: }
186: # Graphical display after login only
187: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
188: $result.=&innerregister($forcereg,$target);
189: return $result.$force_title;
190: }
191:
192: # =========== This gets called in order to register a URL, both with the Remote
193: # =========== and in the body of the document
194:
195: sub innerregister {
196: my $forcereg=shift;
197: my $target = shift;
198: my $result = '';
199: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
200:
201: $Apache::lonxml::registered=1;
202:
203: my $textinter=($ENV{'browser.interface'} eq 'textual');
204: my $noremote=($ENV{'environment.remote'} eq 'off');
205:
206: my $textual=($textinter || $noremote);
207:
208: @inlineremote=();
209: undef @inlineremote;
210:
211: my $reopen=&Apache::lonmenu::reopenmenu();
212:
213: my $newmail='';
214: if ($noremote) {
215: $newmail='<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%"><tr><td bgcolor="'.$tabbg.'">';
216: }
217: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
218: my ($mapurl,$rid,$resurl)=split(/\_\_\_/,$ENV{'request.symb'});
219: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
220: my $maptitle=&Apache::lonnet::gettitle($mapurl);
221: my $restitle=&Apache::lonnet::gettitle($resurl);
222: if ($maptitle) {
223: $newmail.=', '.$maptitle;
224: }
225: if ($restitle) {
226: $newmail.=': '.$restitle;
227: }
228: $newmail.=' ';
229: }
230: if (&Apache::lonmsg::newmail()) {
231: $newmail=($textual?
232: '<b><a href="/adm/communicate">You have new messages</a></b><br />':
233: 'swmenu.setstatus("you have","messages");');
234: }
235: if ($noremote) {
236: $newmail.='</td></tr></table>';
237: }
238: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
239: my $tablestart=($noremote?'<table bgcolor="'.$pgbg.'" border="0" cellspacing="3" cellpadding="3" width="100%">':'');
240: my $tableend=($noremote?'</table>':'');
241: # =============================================================================
242: # ============================ This is for URLs that actually can be registered
243: if (($ENV{'REQUEST_URI'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
244: # -- This applies to homework problems for users with grading privileges
245: my $hwkadd='';
246: if
247: ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
248: if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
249: $hwkadd.=&switch('','',7,1,'subm.gif','view sub','missions',
250: "gocmd('/adm/grades','submission')",
251: 'View user submissions for this assessment resource');
252: }
253: if (&Apache::lonnet::allowed('mgr',$ENV{'request.course.id'})) {
254: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem','grades',
255: "gocmd('/adm/grades','gradingmenu')",
256: 'Modify user grades for this assessment resource');
257: }
258: if (&Apache::lonnet::allowed('opa',$ENV{'request.course.id'})) {
259: $hwkadd.=&switch('','',7,3,'pparm.gif','problem','parms',
260: "gocmd('/adm/parmset','set')",
261: 'Modify deadlines, etc, for this assessment resource');
262: }
263: }
264: # -- End Homework
265: ###
266: ### Determine whether or not to display the 'cstr' button for this
267: ### resource
268: ###
269: my $editbutton = '';
270: if ($ENV{'user.author'}) {
271: if ($ENV{'request.role'}=~/^(ca|au)/) {
272: # Set defaults for authors
273: my ($top,$bottom) = ('con-','struct');
274: my $action = "go('/priv/".$ENV{'user.name'}."');";
275: my $cadom = $ENV{'request.role.domain'};
276: my $caname = $ENV{'user.name'};
277: my $desc = "Enter my resource construction space";
278: # Set defaults for co-authors
279: if ($ENV{'request.role'} =~ /^ca/) {
280: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
281: ($top,$bottom) = ('co con-','struct');
282: $action = "go('/priv/".$caname."');";
283: $desc = "Enter construction space as co-author";
284: }
285: # Check that we are on the correct machine
286: my $home = &Apache::lonnet::homeserver($caname,$cadom);
287: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
288: $editbutton=&switch
289: ('','',6,1,$top,,$bottom,$action,$desc);
290: }
291: }
292: ##
293: ## Determine if user can edit url.
294: ##
295: my $cfile='';
296: my $cfuname='';
297: my $cfudom='';
298: if ($ENV{'request.filename'}) {
299: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
300: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
301: # Chech that the user has permission to edit this resource
302: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
303: if (defined($cfudom)) {
304: if (&Apache::lonnet::homeserver($cfuname,$cfudom)
305: eq $Apache::lonnet::perlvar{'lonHostID'}) {
306: $cfile=$file;
307: }
308: }
309: }
310: # Finally, turn the button on or off
311: if ($cfile) {
312: $editbutton=&switch
313: ('','',6,1,'cstr.gif','edit','resource',
314: "go('".$cfile."');","Edit this resource");
315: } elsif ($editbutton eq '') {
316: $editbutton=&clear(6,1);
317: }
318: }
319: ###
320: ###
321: # Prepare the rest of the buttons
322: my $menuitems=(<<ENDMENUITEMS);
323: c&3&1
324: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
325: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
326: s&6&3&catalog.gif&catalog&info&catalog_info()&Show catalog information
327: s&8&1&eval.gif&evaluate&this&gopost('/adm/evaluate',currentURL)&Provide my evaluation of this resource
328: s&8&2&fdbk.gif&feedback&discuss&gopost('/adm/feedback',currentURL)&Provide feedback messages or contribute to the course discussion about this resource
329: s&8&3&prt.gif&prepare&printout&gopost('/adm/printout',currentURL)&Prepare a printable document
330: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
331: s&9&2&vbkm.gif&view&bookmark&edit_bookmarks()&Use or edit my bookmark collection&2
332: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
333: ENDMENUITEMS
334: my $buttons='';
335: foreach (split(/\n/,$menuitems)) {
336: my ($command,@rest)=split(/\&/,$_);
337: if ($command eq 's') {
338: $buttons.=&switch('','',@rest);
339: } else {
340: $buttons.=&clear(@rest);
341: }
342: }
343: if ($textual) {
344: # Registered, textual output
345: my $utility=&utilityfunctions();
346: my $form=&serverform();
347: my $inlinebuttons=
348: join('',map { (defined($_)?$_:'') } @inlineremote);
349: $result =(<<ENDREGTEXT);
350: <script>
351: // BEGIN LON-CAPA Internal
352: $utility
353: </script>
354: $timesync
355: $newmail
356: $tablestart
357: $inlinebuttons
358: $tableend
359: $form
360: <script>
361: // END LON-CAPA Internal
362: </script>
363:
364: ENDREGTEXT
365: # Registered, graphical output
366: } else {
367: $result = (<<ENDREGTHIS);
368:
369: <script language="JavaScript">
370: // BEGIN LON-CAPA Internal
371: var swmenu=null;
372:
373: function LONCAPAreg() {
374: swmenu=$reopen;
375: swmenu.clearTimeout(swmenu.menucltim);
376: $timesync
377: $newmail
378: $buttons
379: swmenu.currentURL=window.location.pathname;
380: swmenu.reloadURL=window.location.pathname+window.location.search;
381: swmenu.currentSymb="$ENV{'request.symb'}";
382: swmenu.reloadSymb="$ENV{'request.symb'}";
383: swmenu.currentStale=0;
384: $hwkadd
385: $editbutton
386: }
387:
388: function LONCAPAstale() {
389: swmenu=$reopen
390: swmenu.currentStale=1;
391: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
392: swmenu.switchbutton
393: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
394: }
395: swmenu.clearbut(7,1);
396: swmenu.clearbut(7,2);
397: swmenu.clearbut(7,3);
398: swmenu.menucltim=swmenu.setTimeout(
399: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
400: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
401: 2000);
402: }
403:
404: // END LON-CAPA Internal
405: </script>
406: ENDREGTHIS
407: }
408: # =============================================================================
409: } else {
410: # ========================================== This can or will not be registered
411: if ($textual) {
412: # Not registered, textual
413: $result= (<<ENDDONOTREGTEXT);
414: ENDDONOTREGTEXT
415: } else {
416: # Not registered, graphical
417: $result = (<<ENDDONOTREGTHIS);
418:
419: <script language="JavaScript">
420: // BEGIN LON-CAPA Internal
421: var swmenu=null;
422:
423: function LONCAPAreg() {
424: swmenu=$reopen
425: $timesync
426: swmenu.currentStale=1;
427: swmenu.clearbut(2,1);
428: swmenu.clearbut(2,3);
429: swmenu.clearbut(8,1);
430: swmenu.clearbut(8,2);
431: swmenu.clearbut(8,3);
432: if (swmenu.currentURL) {
433: swmenu.switchbutton
434: (3,1,'reload.gif','return','location','go(currentURL)');
435: } else {
436: swmenu.clearbut(3,1);
437: }
438: }
439:
440: function LONCAPAstale() {
441: }
442:
443: // END LON-CAPA Internal
444: </script>
445: ENDDONOTREGTHIS
446: }
447: # =============================================================================
448: }
449: return $result;
450: }
451:
452: sub loadevents() {
453: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
454: return 'LONCAPAreg();';
455: }
456:
457: sub unloadevents() {
458: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
459: return 'LONCAPAstale();';
460: }
461:
462: # ============================================================= Start up remote
463:
464: sub startupremote {
465: my ($lowerurl)=@_;
466: if (($ENV{'browser.interface'} eq 'textual') ||
467: ($ENV{'environment.remote'} eq 'off')) {
468: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
469: }
470: #
471: # The Remote actually gets launched!
472: #
473: my $configmenu=&rawconfig();
474: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
475:
476: return(<<ENDREMOTESTARTUP);
477: <script>
478:
479: function wheelswitch() {
480: if (window.status=='|') {
481: window.status='/';
482: } else {
483: if (window.status=='/') {
484: window.status='-';
485: } else {
486: if (window.status=='-') {
487: window.status='\\\\';
488: } else {
489: if (window.status=='\\\\') { window.status='|'; }
490: }
491: }
492: }
493: }
494:
495: // ---------------------------------------------------------- The wait function
496: var canceltim;
497: function wait() {
498: if ((menuloaded==1) || (tim==1)) {
499: window.status='Done.';
500: if (tim==0) {
501: clearTimeout(canceltim);
502: $configmenu
503: window.location='$lowerurl';
504: } else {
505: window.location='/adm/remote?action=collapse&url=$esclowerurl';
506: }
507: } else {
508: wheelswitch();
509: setTimeout('wait();',200);
510: }
511: }
512:
513: function main() {
514: canceltim=setTimeout('tim=1;',30000);
515: window.status='-';
516: wait();
517: }
518:
519: </script>
520: ENDREMOTESTARTUP
521: }
522:
523: sub setflags() {
524: return(<<ENDSETFLAGS);
525: <script>
526: menuloaded=0;
527: tim=0;
528: </script>
529: ENDSETFLAGS
530: }
531:
532: sub maincall() {
533: if (($ENV{'browser.interface'} eq 'textual') ||
534: ($ENV{'environment.remote'} eq 'off')) { return ''; }
535: return(<<ENDMAINCALL);
536: <script>
537: main();
538: </script>
539: ENDMAINCALL
540: }
541: # ================================================================= Reopen menu
542:
543: sub reopenmenu {
544: if (($ENV{'browser.interface'} eq 'textual') ||
545: ($ENV{'environment.remote'} eq 'off')) { return ''; }
546: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
547: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
548: return('window.open('.$nothing.',"'.$menuname.'","",false);');
549: }
550:
551: # =============================================================== Open the menu
552:
553: sub open {
554: my $returnval='';
555: if (($ENV{'browser.interface'} eq 'textual') ||
556: ($ENV{'environment.remote'} eq 'off')) { return ''; }
557: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
558: unless (shift eq 'unix') {
559: # resizing does not work on linux because of virtual desktop sizes
560: $returnval.=(<<ENDRESIZE);
561: if (window.screen) {
562: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
563: self.moveTo(190,15);
564: }
565: ENDRESIZE
566: }
567: $returnval.=(<<ENDOPEN);
568: window.status='Opening LON-CAPA Remote Control';
569: var menu=window.open("/res/adm/pages/menu.html","$menuname",
570: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
571: self.name='loncapaclient';
572: ENDOPEN
573: return '<script>'.$returnval.'</script>';
574: }
575:
576:
577: # ================================================================== Raw Config
578:
579: sub clear {
580: my ($row,$col)=@_;
581: unless (($ENV{'browser.interface'} eq 'textual') ||
582: ($ENV{'environment.remote'} eq 'off')) {
583: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
584: } else {
585: $inlineremote[10*$row+$col]='';
586: return '';
587: }
588: }
589:
590: # ============================================ Switch a button or create a link
591: # Switch acts on the javascript that is executed when a button is clicked.
592: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
593:
594: sub switch {
595: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
596: $act=~s/\$uname/$uname/g;
597: $act=~s/\$udom/$udom/g;
598: unless (($ENV{'browser.interface'} eq 'textual') ||
599: ($ENV{'environment.remote'} eq 'off')) {
600: # Remote
601: return "\n".
602: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
603: } elsif ($ENV{'browser.interface'} eq 'textual') {
604: # Accessibility
605: if ($nobreak==2) { return ''; }
606: my $text=$top.' '.$bot;
607: $text=~s/\- //;
608: $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
609: '<a href="javascript:'.$act.';">'.$text.'</a> '.
610: ($nobreak?'':$desc);
611: } else {
612: # Inline Remote
613: if ($nobreak==2) { return ''; }
614: my $text=$top.' '.$bot;
615: $text=~s/\- //;
616: $inlineremote[10*$row+$col]="\n".
617: ($nobreak==3?'<td width="50%" colspan="2" align="right"':'<tr><td').
618: ' bgcolor="'.$tabbg.'"'.($nobreak==1?' width="50%" colspan="2"':'').
619: '"><a href="javascript:'.$act.';"><font color="'.$font.'"'.
620: ($nobreak?' size="+1"':'').
621: '>'.$text.'</font></a></td>'.
622: ($nobreak?'':'<td colspan="3" width="80%"><font color="'.$font.'" size="-1">'.$desc.'</font>').($nobreak!=1?'</tr>':'');
623: }
624: return '';
625: }
626:
627: sub secondlevel {
628: my $output='';
629: my
630: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
631: if ($prt eq 'any') {
632: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
633: } elsif ($prt=~/^r(\w+)/) {
634: if ($rol eq $1) {
635: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
636: }
637: }
638: return $output;
639: }
640:
641: sub openmenu {
642: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
643: if (($ENV{'browser.interface'} eq 'textual') ||
644: ($ENV{'environment.remote'} eq 'off')) { return ''; }
645: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
646: return "window.open(".$nothing.",'".$menuname."');";
647: }
648:
649: sub inlinemenu {
650: @inlineremote=();
651: undef @inlineremote;
652: &rawconfig(1);
653: return join('',map { (defined($_)?$_:'') } @inlineremote);
654: }
655:
656: sub rawconfig {
657: my $textualoverride=shift;
658: my $output='';
659: unless (($ENV{'browser.interface'} eq 'textual') ||
660: ($ENV{'environment.remote'} eq 'off')) {
661: $output.=
662: "window.status='Opening Remote Control';var swmenu=".&openmenu().
663: "\nwindow.status='Configuring Remote Control ';";
664: } else {
665: unless ($textualoverride) { return ''; }
666: }
667: my $uname=$ENV{'user.name'};
668: my $udom=$ENV{'user.domain'};
669: my $adv=$ENV{'user.adv'};
670: my $author=$ENV{'user.author'};
671: my $crs='';
672: if ($ENV{'request.course.id'}) {
673: $crs='/'.$ENV{'request.course.id'};
674: if ($ENV{'request.course.sec'}) {
675: $crs.='_'.$ENV{'request.course.sec'};
676: }
677: $crs=~s/\_/\//g;
678: }
679: my $pub=($ENV{'request.state'} eq 'published');
680: my $con=($ENV{'request.state'} eq 'construct');
681: my $rol=$ENV{'request.role'};
682: my $requested_domain = $ENV{'request.role.domain'};
683: foreach (@desklines) {
684: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
685: $prt=~s/\$uname/$uname/g;
686: $prt=~s/\$udom/$udom/g;
687: $prt=~s/\$crs/$crs/g;
688: $prt=~s/\$requested_domain/$requested_domain/g;
689: if ($pro eq 'clear') {
690: $output.=&clear($row,$col);
691: } elsif ($pro eq 'any') {
692: $output.=&secondlevel(
693: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
694: } elsif ($pro eq 'smp') {
695: unless ($adv) {
696: $output.=&secondlevel(
697: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
698: }
699: } elsif ($pro eq 'adv') {
700: if ($adv) {
701: $output.=&secondlevel(
702: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
703: }
704: } elsif (($pro=~/p(\w+)/) && ($prt)) {
705: if (&Apache::lonnet::allowed($1,$prt)) {
706: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
707: }
708: } elsif ($pro eq 'course') {
709: if ($ENV{'request.course.fn'}) {
710: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
711: }
712: } elsif ($pro eq 'author') {
713: if ($author) {
714: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
715: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
716: # Check that we are on the correct machine
717: my $cadom=$requested_domain;
718: my $caname=$ENV{'user.name'};
719: if ($prt eq 'rca') {
720: ($cadom,$caname)=
721: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
722: }
723: $act =~ s/\$caname/$caname/g;
724: my $home = &Apache::lonnet::homeserver($caname,$cadom);
725: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
726: $output.=switch($caname,$cadom,
727: $row,$col,$img,$top,$bot,$act,$desc);
728: }
729: }
730: }
731: }
732: }
733: unless (($ENV{'browser.interface'} eq 'textual') ||
734: ($ENV{'environment.remote'} eq 'off')) {
735: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
736: }
737: return $output;
738: }
739:
740: # ======================================================================= Close
741:
742: sub close {
743: if (($ENV{'browser.interface'} eq 'textual') ||
744: ($ENV{'environment.remote'} eq 'off')) { return ''; }
745: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
746: return(<<ENDCLOSE);
747: <script>
748: window.status='Accessing Remote Control';
749: menu=window.open("/adm/rat/empty.html","$menuname",
750: "height=350,width=150,scrollbars=no,menubar=no");
751: window.status='Disabling Remote Control';
752: menu.active=0;
753: menu.autologout=0;
754: window.status='Closing Remote Control';
755: menu.close();
756: window.status='Done.';
757: </script>
758: ENDCLOSE
759: }
760:
761: # ====================================================================== Footer
762:
763: sub footer {
764:
765: }
766:
767: sub utilityfunctions {
768: unless (($ENV{'browser.interface'} eq 'textual') ||
769: ($ENV{'environment.remote'} eq 'off')) { return ''; }
770: my $currenturl=$ENV{'REQUEST_URI'};
771: my $currentsymb=$ENV{'request.symb'};
772: return (<<ENDUTILITY)
773:
774: var currentURL="$currenturl";
775: var reloadURL="$currenturl";
776: var currentSymb="$currentsymb";
777:
778: function go(url) {
779: if (url!='' && url!= null) {
780: currentURL = null;
781: currentSymb= null;
782: window.location.href=url;
783: }
784: }
785:
786: function gopost(url,postdata) {
787: if (url!='') {
788: this.document.server.action=url;
789: this.document.server.postdata.value=postdata;
790: this.document.server.command.value='';
791: this.document.server.url.value='';
792: this.document.server.symb.value='';
793: this.document.server.submit();
794: }
795: }
796:
797: function gocmd(url,cmd) {
798: if (url!='') {
799: this.document.server.action=url;
800: this.document.server.postdata.value='';
801: this.document.server.command.value=cmd;
802: this.document.server.url.value=currentURL;
803: this.document.server.symb.value=currentSymb;
804: this.document.server.submit();
805: }
806: }
807:
808: function catalog_info() {
809: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
810: }
811:
812: function chat_win() {
813: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
814: }
815: ENDUTILITY
816: }
817:
818: sub serverform {
819: return(<<ENDSERVERFORM);
820:
821: <form name="server" action="/adm/logout" method="post" target="_top">
822: <input type="hidden" name="postdata" value="none" />
823: <input type="hidden" name="command" value="none" />
824: <input type="hidden" name="url" value="none" />
825: <input type="hidden" name="symb" value="none" />
826: </form>
827: ENDSERVERFORM
828: }
829: # ================================================ Handler when called directly
830:
831:
832: sub handler {
833: my $r = shift;
834: $r->content_type('text/html');
835: $r->send_http_header;
836: return OK if $r->header_only;
837:
838: my $form=&serverform();
839: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
840: my $function='student';
841: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
842: $function='coordinator';
843: }
844: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
845: $function='admin';
846: }
847: if (($ENV{'request.role'}=~/^(au|ca)/) ||
848: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
849: $function='author';
850: }
851: my $domain=&Apache::loncommon::determinedomain();
852: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
853: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
854: $font=&Apache::loncommon::designparm($function.'.font',$domain);
855: # ---- Print the screen, pretent to be in text mode to generate text-based menu
856: unless ($ENV{'brower.interface'} eq 'textual') {
857: $ENV{'environment.remote'}='off';
858: }
859: my $utility=&utilityfunctions();
860: $r->print(<<ENDHEADER);
861: <html><head>
862: <title>LON-CAPA Main Menu</title>
863: <script>
864: $utility
865: </script>
866: </head>
867: $bodytag
868: ENDHEADER
869: $r->print('<table>'.&inlinemenu().'</table>'.$form);
870: $r->print('</body></html>');
871: return OK;
872: }
873:
874: # ================================================================ Main Program
875:
876: BEGIN {
877: if (! defined($readdesk)) {
878: {
879: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
880: '/mydesk.tab');
881: while (my $configline=<$config>) {
882: $configline=(split(/\#/,$configline))[0];
883: $configline=~s/^\s+//;
884: chomp($configline);
885: if ($configline) {
886: $desklines[$#desklines+1]=$configline;
887: }
888: }
889: }
890: $readdesk='done';
891: }
892: }
893:
894: 1;
895: __END__
896:
897:
898:
899:
900:
901:
902:
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