1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.86 2003/08/28 16:43:12 albertel 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 $requri=(split(/\?/,$ENV{'REQUEST_URI'}))[0];
381: $requri=&Apache::lonnet::unescape($requri);
382: $result = (<<ENDREGTHIS);
383:
384: <script language="JavaScript">
385: // BEGIN LON-CAPA Internal
386: var swmenu=null;
387:
388: function LONCAPAreg() {
389: swmenu=$reopen;
390: swmenu.clearTimeout(swmenu.menucltim);
391: $timesync
392: $newmail
393: $buttons
394: swmenu.currentURL="$requri";
395: swmenu.reloadURL=swmenu.currentURL+window.location.search;
396: swmenu.currentSymb="$ENV{'request.symb'}";
397: swmenu.reloadSymb="$ENV{'request.symb'}";
398: swmenu.currentStale=0;
399: $hwkadd
400: $editbutton
401: }
402:
403: function LONCAPAstale() {
404: swmenu=$reopen
405: swmenu.currentStale=1;
406: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
407: swmenu.switchbutton
408: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
409: }
410: swmenu.clearbut(7,1);
411: swmenu.clearbut(7,2);
412: swmenu.clearbut(7,3);
413: swmenu.menucltim=swmenu.setTimeout(
414: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
415: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
416: 2000);
417: }
418:
419: // END LON-CAPA Internal
420: </script>
421: ENDREGTHIS
422: }
423: # =============================================================================
424: } else {
425: # ========================================== This can or will not be registered
426: if ($textual) {
427: # Not registered, textual
428: $result= (<<ENDDONOTREGTEXT);
429: ENDDONOTREGTEXT
430: } else {
431: # Not registered, graphical
432: $result = (<<ENDDONOTREGTHIS);
433:
434: <script language="JavaScript">
435: // BEGIN LON-CAPA Internal
436: var swmenu=null;
437:
438: function LONCAPAreg() {
439: swmenu=$reopen
440: $timesync
441: swmenu.currentStale=1;
442: swmenu.clearbut(2,1);
443: swmenu.clearbut(2,3);
444: swmenu.clearbut(8,1);
445: swmenu.clearbut(8,2);
446: swmenu.clearbut(8,3);
447: if (swmenu.currentURL) {
448: swmenu.switchbutton
449: (3,1,'reload.gif','return','location','go(currentURL)');
450: } else {
451: swmenu.clearbut(3,1);
452: }
453: }
454:
455: function LONCAPAstale() {
456: }
457:
458: // END LON-CAPA Internal
459: </script>
460: ENDDONOTREGTHIS
461: }
462: # =============================================================================
463: }
464: return $result;
465: }
466:
467: sub loadevents() {
468: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
469: return 'LONCAPAreg();';
470: }
471:
472: sub unloadevents() {
473: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
474: return 'LONCAPAstale();';
475: }
476:
477: # ============================================================= Start up remote
478:
479: sub startupremote {
480: my ($lowerurl)=@_;
481: if (($ENV{'browser.interface'} eq 'textual') ||
482: ($ENV{'environment.remote'} eq 'off')) {
483: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
484: }
485: #
486: # The Remote actually gets launched!
487: #
488: my $configmenu=&rawconfig();
489: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
490:
491: return(<<ENDREMOTESTARTUP);
492: <script>
493:
494: function wheelswitch() {
495: if (window.status=='|') {
496: window.status='/';
497: } else {
498: if (window.status=='/') {
499: window.status='-';
500: } else {
501: if (window.status=='-') {
502: window.status='\\\\';
503: } else {
504: if (window.status=='\\\\') { window.status='|'; }
505: }
506: }
507: }
508: }
509:
510: // ---------------------------------------------------------- The wait function
511: var canceltim;
512: function wait() {
513: if ((menuloaded==1) || (tim==1)) {
514: window.status='Done.';
515: if (tim==0) {
516: clearTimeout(canceltim);
517: $configmenu
518: window.location='$lowerurl';
519: } else {
520: window.location='/adm/remote?action=collapse&url=$esclowerurl';
521: }
522: } else {
523: wheelswitch();
524: setTimeout('wait();',200);
525: }
526: }
527:
528: function main() {
529: canceltim=setTimeout('tim=1;',30000);
530: window.status='-';
531: wait();
532: }
533:
534: </script>
535: ENDREMOTESTARTUP
536: }
537:
538: sub setflags() {
539: return(<<ENDSETFLAGS);
540: <script>
541: menuloaded=0;
542: tim=0;
543: </script>
544: ENDSETFLAGS
545: }
546:
547: sub maincall() {
548: if (($ENV{'browser.interface'} eq 'textual') ||
549: ($ENV{'environment.remote'} eq 'off')) { return ''; }
550: return(<<ENDMAINCALL);
551: <script>
552: main();
553: </script>
554: ENDMAINCALL
555: }
556: # ================================================================= Reopen menu
557:
558: sub reopenmenu {
559: if (($ENV{'browser.interface'} eq 'textual') ||
560: ($ENV{'environment.remote'} eq 'off')) { return ''; }
561: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
562: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
563: return('window.open('.$nothing.',"'.$menuname.'","",false);');
564: }
565:
566: # =============================================================== Open the menu
567:
568: sub open {
569: my $returnval='';
570: if (($ENV{'browser.interface'} eq 'textual') ||
571: ($ENV{'environment.remote'} eq 'off')) { return ''; }
572: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
573: unless (shift eq 'unix') {
574: # resizing does not work on linux because of virtual desktop sizes
575: $returnval.=(<<ENDRESIZE);
576: if (window.screen) {
577: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
578: self.moveTo(190,15);
579: }
580: ENDRESIZE
581: }
582: $returnval.=(<<ENDOPEN);
583: window.status='Opening LON-CAPA Remote Control';
584: var menu=window.open("/res/adm/pages/menu.html","$menuname",
585: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
586: self.name='loncapaclient';
587: ENDOPEN
588: return '<script>'.$returnval.'</script>';
589: }
590:
591:
592: # ================================================================== Raw Config
593:
594: sub clear {
595: my ($row,$col)=@_;
596: unless (($ENV{'browser.interface'} eq 'textual') ||
597: ($ENV{'environment.remote'} eq 'off')) {
598: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
599: } else {
600: $inlineremote[10*$row+$col]='';
601: return '';
602: }
603: }
604:
605: # ============================================ Switch a button or create a link
606: # Switch acts on the javascript that is executed when a button is clicked.
607: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
608:
609: sub switch {
610: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
611: $act=~s/\$uname/$uname/g;
612: $act=~s/\$udom/$udom/g;
613: unless (($ENV{'browser.interface'} eq 'textual') ||
614: ($ENV{'environment.remote'} eq 'off')) {
615: # Remote
616: return "\n".
617: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
618: } elsif ($ENV{'browser.interface'} eq 'textual') {
619: # Accessibility
620: if ($nobreak==2) { return ''; }
621: my $text=$top.' '.$bot;
622: $text=~s/\s*\-\s*//gs;
623: $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
624: '<a href="javascript:'.$act.';">'.$text.'</a> '.
625: ($nobreak?'':$desc);
626: } else {
627: # Inline Remote
628: if ($nobreak==2) { return ''; }
629: my $text=$top.' '.$bot;
630: $text=~s/\s*\-\s*//gs;
631: $inlineremote[10*$row+$col]="\n".
632: ($nobreak==3?'<td width="50%" colspan="2" align="right"':'<tr><td').
633: ' bgcolor="'.$tabbg.'"'.($nobreak==1?' width="50%" colspan="2"':'').
634: '"><a href="javascript:'.$act.';"><font color="'.$font.'"'.
635: ($nobreak?' size="+1"':'').
636: '>'.$text.'</font></a></td>'.
637: ($nobreak?'':'<td colspan="3" width="80%"><font color="'.$font.'" size="-1">'.$desc.'</font>').($nobreak!=1?'</tr>':'');
638: }
639: return '';
640: }
641:
642: sub secondlevel {
643: my $output='';
644: my
645: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
646: if ($prt eq 'any') {
647: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
648: } elsif ($prt=~/^r(\w+)/) {
649: if ($rol eq $1) {
650: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
651: }
652: }
653: return $output;
654: }
655:
656: sub openmenu {
657: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
658: if (($ENV{'browser.interface'} eq 'textual') ||
659: ($ENV{'environment.remote'} eq 'off')) { return ''; }
660: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
661: return "window.open(".$nothing.",'".$menuname."');";
662: }
663:
664: sub inlinemenu {
665: @inlineremote=();
666: undef @inlineremote;
667: &rawconfig(1);
668: return join('',map { (defined($_)?$_:'') } @inlineremote);
669: }
670:
671: sub rawconfig {
672: my $textualoverride=shift;
673: my $output='';
674: unless (($ENV{'browser.interface'} eq 'textual') ||
675: ($ENV{'environment.remote'} eq 'off')) {
676: $output.=
677: "window.status='Opening Remote Control';var swmenu=".&openmenu().
678: "\nwindow.status='Configuring Remote Control ';";
679: } else {
680: unless ($textualoverride) { return ''; }
681: }
682: my $uname=$ENV{'user.name'};
683: my $udom=$ENV{'user.domain'};
684: my $adv=$ENV{'user.adv'};
685: my $author=$ENV{'user.author'};
686: my $crs='';
687: if ($ENV{'request.course.id'}) {
688: $crs='/'.$ENV{'request.course.id'};
689: if ($ENV{'request.course.sec'}) {
690: $crs.='_'.$ENV{'request.course.sec'};
691: }
692: $crs=~s/\_/\//g;
693: }
694: my $pub=($ENV{'request.state'} eq 'published');
695: my $con=($ENV{'request.state'} eq 'construct');
696: my $rol=$ENV{'request.role'};
697: my $requested_domain = $ENV{'request.role.domain'};
698: foreach (@desklines) {
699: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
700: $prt=~s/\$uname/$uname/g;
701: $prt=~s/\$udom/$udom/g;
702: $prt=~s/\$crs/$crs/g;
703: $prt=~s/\$requested_domain/$requested_domain/g;
704: if ($pro eq 'clear') {
705: $output.=&clear($row,$col);
706: } elsif ($pro eq 'any') {
707: $output.=&secondlevel(
708: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
709: } elsif ($pro eq 'smp') {
710: unless ($adv) {
711: $output.=&secondlevel(
712: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
713: }
714: } elsif ($pro eq 'adv') {
715: if ($adv) {
716: $output.=&secondlevel(
717: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
718: }
719: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
720: if (&Apache::lonnet::allowed($1,$prt)) {
721: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
722: }
723: } elsif ($pro eq 'course') {
724: if ($ENV{'request.course.fn'}) {
725: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
726: }
727: } elsif ($pro =~ /^course_(.*)$/) {
728: # Check for permissions inside of a course
729: if (($ENV{'request.course.id'}) &&
730: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
731: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
732: )) {
733: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
734: }
735: } elsif ($pro eq 'author') {
736: if ($author) {
737: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
738: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
739: # Check that we are on the correct machine
740: my $cadom=$requested_domain;
741: my $caname=$ENV{'user.name'};
742: if ($prt eq 'rca') {
743: ($cadom,$caname)=
744: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
745: }
746: $act =~ s/\$caname/$caname/g;
747: my $home = &Apache::lonnet::homeserver($caname,$cadom);
748: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
749: $output.=switch($caname,$cadom,
750: $row,$col,$img,$top,$bot,$act,$desc);
751: }
752: }
753: }
754: }
755: }
756: unless (($ENV{'browser.interface'} eq 'textual') ||
757: ($ENV{'environment.remote'} eq 'off')) {
758: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
759: }
760: return $output;
761: }
762:
763: # ======================================================================= Close
764:
765: sub close {
766: if (($ENV{'browser.interface'} eq 'textual') ||
767: ($ENV{'environment.remote'} eq 'off')) { return ''; }
768: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
769: return(<<ENDCLOSE);
770: <script>
771: window.status='Accessing Remote Control';
772: menu=window.open("/adm/rat/empty.html","$menuname",
773: "height=350,width=150,scrollbars=no,menubar=no");
774: window.status='Disabling Remote Control';
775: menu.active=0;
776: menu.autologout=0;
777: window.status='Closing Remote Control';
778: menu.close();
779: window.status='Done.';
780: </script>
781: ENDCLOSE
782: }
783:
784: # ====================================================================== Footer
785:
786: sub footer {
787:
788: }
789:
790: sub utilityfunctions {
791: unless (($ENV{'browser.interface'} eq 'textual') ||
792: ($ENV{'environment.remote'} eq 'off')) { return ''; }
793: my $currenturl=$ENV{'REQUEST_URI'};
794: my $currentsymb=$ENV{'request.symb'};
795: return (<<ENDUTILITY)
796:
797: var currentURL="$currenturl";
798: var reloadURL="$currenturl";
799: var currentSymb="$currentsymb";
800:
801: function go(url) {
802: if (url!='' && url!= null) {
803: currentURL = null;
804: currentSymb= null;
805: window.location.href=url;
806: }
807: }
808:
809: function gopost(url,postdata) {
810: if (url!='') {
811: this.document.server.action=url;
812: this.document.server.postdata.value=postdata;
813: this.document.server.command.value='';
814: this.document.server.url.value='';
815: this.document.server.symb.value='';
816: this.document.server.submit();
817: }
818: }
819:
820: function gocmd(url,cmd) {
821: if (url!='') {
822: this.document.server.action=url;
823: this.document.server.postdata.value='';
824: this.document.server.command.value=cmd;
825: this.document.server.url.value=currentURL;
826: this.document.server.symb.value=currentSymb;
827: this.document.server.submit();
828: }
829: }
830:
831: function catalog_info() {
832: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
833: }
834:
835: function chat_win() {
836: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
837: }
838: ENDUTILITY
839: }
840:
841: sub serverform {
842: return(<<ENDSERVERFORM);
843:
844: <form name="server" action="/adm/logout" method="post" target="_top">
845: <input type="hidden" name="postdata" value="none" />
846: <input type="hidden" name="command" value="none" />
847: <input type="hidden" name="url" value="none" />
848: <input type="hidden" name="symb" value="none" />
849: </form>
850: ENDSERVERFORM
851: }
852: # ================================================ Handler when called directly
853:
854:
855: sub handler {
856: my $r = shift;
857: $r->content_type('text/html');
858: $r->send_http_header;
859: return OK if $r->header_only;
860:
861: my $form=&serverform();
862: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
863: my $function='student';
864: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
865: $function='coordinator';
866: }
867: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
868: $function='admin';
869: }
870: if (($ENV{'request.role'}=~/^(au|ca)/) ||
871: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
872: $function='author';
873: }
874: my $domain=&Apache::loncommon::determinedomain();
875: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
876: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
877: $font=&Apache::loncommon::designparm($function.'.font',$domain);
878: # ---- Print the screen, pretent to be in text mode to generate text-based menu
879: unless ($ENV{'brower.interface'} eq 'textual') {
880: $ENV{'environment.remote'}='off';
881: }
882: my $utility=&utilityfunctions();
883: $r->print(<<ENDHEADER);
884: <html><head>
885: <title>LON-CAPA Main Menu</title>
886: <script>
887: $utility
888: </script>
889: </head>
890: $bodytag
891: ENDHEADER
892: $r->print('<table>'.&inlinemenu().'</table>'.$form);
893: $r->print('</body></html>');
894: return OK;
895: }
896:
897: # ================================================================ Main Program
898:
899: BEGIN {
900: if (! defined($readdesk)) {
901: {
902: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
903: '/mydesk.tab');
904: while (my $configline=<$config>) {
905: $configline=(split(/\#/,$configline))[0];
906: $configline=~s/^\s+//;
907: chomp($configline);
908: if ($configline) {
909: $desklines[$#desklines+1]=$configline;
910: }
911: }
912: }
913: $readdesk='done';
914: }
915: }
916:
917: 1;
918: __END__
919:
920:
921:
922:
923:
924:
925:
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