1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.77 2003/06/15 23:06:32 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 $menuitems=(<<ENDMENUITEMS);
323: c&3&1
324: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
325: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
326: c&6&3
327: c&8&1
328: c&8&2
329: s&8&3&prt.gif&prepare&printout&gopost('/adm/printout',currentURL)&Prepare a printable document
330: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
331: s&9&2&vbkm.gif&view&bookmark&edit_bookmarks()&Use or edit my bookmark collection&2
332: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
333: ENDMENUITEMS
334: unless ($ENV{'REQUEST_URI'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
335: $menuitems.=(<<ENDREALRES);
336: s&6&3&catalog.gif&catalog&info&catalog_info()&Show catalog information
337: s&8&1&eval.gif&evaluate&this&gopost('/adm/evaluate',currentURL)&Provide my evaluation of this resource
338: s&8&2&fdbk.gif&feedback&discuss&gopost('/adm/feedback',currentURL)&Provide feedback messages or contribute to the course discussion about this resource
339: ENDREALRES
340: }
341: my $buttons='';
342: foreach (split(/\n/,$menuitems)) {
343: my ($command,@rest)=split(/\&/,$_);
344: if ($command eq 's') {
345: $buttons.=&switch('','',@rest);
346: } else {
347: $buttons.=&clear(@rest);
348: }
349: }
350: if ($textual) {
351: # Registered, textual output
352: my $utility=&utilityfunctions();
353: my $form=&serverform();
354: my $inlinebuttons=
355: join('',map { (defined($_)?$_:'') } @inlineremote);
356: $result =(<<ENDREGTEXT);
357: <script>
358: // BEGIN LON-CAPA Internal
359: $utility
360: </script>
361: $timesync
362: $newmail
363: $tablestart
364: $inlinebuttons
365: $tableend
366: $form
367: <script>
368: // END LON-CAPA Internal
369: </script>
370:
371: ENDREGTEXT
372: # Registered, graphical output
373: } else {
374: $result = (<<ENDREGTHIS);
375:
376: <script language="JavaScript">
377: // BEGIN LON-CAPA Internal
378: var swmenu=null;
379:
380: function LONCAPAreg() {
381: swmenu=$reopen;
382: swmenu.clearTimeout(swmenu.menucltim);
383: $timesync
384: $newmail
385: $buttons
386: swmenu.currentURL=window.location.pathname;
387: swmenu.reloadURL=window.location.pathname+window.location.search;
388: swmenu.currentSymb="$ENV{'request.symb'}";
389: swmenu.reloadSymb="$ENV{'request.symb'}";
390: swmenu.currentStale=0;
391: $hwkadd
392: $editbutton
393: }
394:
395: function LONCAPAstale() {
396: swmenu=$reopen
397: swmenu.currentStale=1;
398: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
399: swmenu.switchbutton
400: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
401: }
402: swmenu.clearbut(7,1);
403: swmenu.clearbut(7,2);
404: swmenu.clearbut(7,3);
405: swmenu.menucltim=swmenu.setTimeout(
406: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
407: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
408: 2000);
409: }
410:
411: // END LON-CAPA Internal
412: </script>
413: ENDREGTHIS
414: }
415: # =============================================================================
416: } else {
417: # ========================================== This can or will not be registered
418: if ($textual) {
419: # Not registered, textual
420: $result= (<<ENDDONOTREGTEXT);
421: ENDDONOTREGTEXT
422: } else {
423: # Not registered, graphical
424: $result = (<<ENDDONOTREGTHIS);
425:
426: <script language="JavaScript">
427: // BEGIN LON-CAPA Internal
428: var swmenu=null;
429:
430: function LONCAPAreg() {
431: swmenu=$reopen
432: $timesync
433: swmenu.currentStale=1;
434: swmenu.clearbut(2,1);
435: swmenu.clearbut(2,3);
436: swmenu.clearbut(8,1);
437: swmenu.clearbut(8,2);
438: swmenu.clearbut(8,3);
439: if (swmenu.currentURL) {
440: swmenu.switchbutton
441: (3,1,'reload.gif','return','location','go(currentURL)');
442: } else {
443: swmenu.clearbut(3,1);
444: }
445: }
446:
447: function LONCAPAstale() {
448: }
449:
450: // END LON-CAPA Internal
451: </script>
452: ENDDONOTREGTHIS
453: }
454: # =============================================================================
455: }
456: return $result;
457: }
458:
459: sub loadevents() {
460: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
461: return 'LONCAPAreg();';
462: }
463:
464: sub unloadevents() {
465: if ($ENV{'REQUEST_URI'} eq '/res/adm/pages/menu.html') { return ''; }
466: return 'LONCAPAstale();';
467: }
468:
469: # ============================================================= Start up remote
470:
471: sub startupremote {
472: my ($lowerurl)=@_;
473: if (($ENV{'browser.interface'} eq 'textual') ||
474: ($ENV{'environment.remote'} eq 'off')) {
475: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
476: }
477: #
478: # The Remote actually gets launched!
479: #
480: my $configmenu=&rawconfig();
481: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
482:
483: return(<<ENDREMOTESTARTUP);
484: <script>
485:
486: function wheelswitch() {
487: if (window.status=='|') {
488: window.status='/';
489: } else {
490: if (window.status=='/') {
491: window.status='-';
492: } else {
493: if (window.status=='-') {
494: window.status='\\\\';
495: } else {
496: if (window.status=='\\\\') { window.status='|'; }
497: }
498: }
499: }
500: }
501:
502: // ---------------------------------------------------------- The wait function
503: var canceltim;
504: function wait() {
505: if ((menuloaded==1) || (tim==1)) {
506: window.status='Done.';
507: if (tim==0) {
508: clearTimeout(canceltim);
509: $configmenu
510: window.location='$lowerurl';
511: } else {
512: window.location='/adm/remote?action=collapse&url=$esclowerurl';
513: }
514: } else {
515: wheelswitch();
516: setTimeout('wait();',200);
517: }
518: }
519:
520: function main() {
521: canceltim=setTimeout('tim=1;',30000);
522: window.status='-';
523: wait();
524: }
525:
526: </script>
527: ENDREMOTESTARTUP
528: }
529:
530: sub setflags() {
531: return(<<ENDSETFLAGS);
532: <script>
533: menuloaded=0;
534: tim=0;
535: </script>
536: ENDSETFLAGS
537: }
538:
539: sub maincall() {
540: if (($ENV{'browser.interface'} eq 'textual') ||
541: ($ENV{'environment.remote'} eq 'off')) { return ''; }
542: return(<<ENDMAINCALL);
543: <script>
544: main();
545: </script>
546: ENDMAINCALL
547: }
548: # ================================================================= Reopen menu
549:
550: sub reopenmenu {
551: if (($ENV{'browser.interface'} eq 'textual') ||
552: ($ENV{'environment.remote'} eq 'off')) { return ''; }
553: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
554: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
555: return('window.open('.$nothing.',"'.$menuname.'","",false);');
556: }
557:
558: # =============================================================== Open the menu
559:
560: sub open {
561: my $returnval='';
562: if (($ENV{'browser.interface'} eq 'textual') ||
563: ($ENV{'environment.remote'} eq 'off')) { return ''; }
564: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
565: unless (shift eq 'unix') {
566: # resizing does not work on linux because of virtual desktop sizes
567: $returnval.=(<<ENDRESIZE);
568: if (window.screen) {
569: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
570: self.moveTo(190,15);
571: }
572: ENDRESIZE
573: }
574: $returnval.=(<<ENDOPEN);
575: window.status='Opening LON-CAPA Remote Control';
576: var menu=window.open("/res/adm/pages/menu.html","$menuname",
577: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
578: self.name='loncapaclient';
579: ENDOPEN
580: return '<script>'.$returnval.'</script>';
581: }
582:
583:
584: # ================================================================== Raw Config
585:
586: sub clear {
587: my ($row,$col)=@_;
588: unless (($ENV{'browser.interface'} eq 'textual') ||
589: ($ENV{'environment.remote'} eq 'off')) {
590: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
591: } else {
592: $inlineremote[10*$row+$col]='';
593: return '';
594: }
595: }
596:
597: # ============================================ Switch a button or create a link
598: # Switch acts on the javascript that is executed when a button is clicked.
599: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
600:
601: sub switch {
602: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
603: $act=~s/\$uname/$uname/g;
604: $act=~s/\$udom/$udom/g;
605: unless (($ENV{'browser.interface'} eq 'textual') ||
606: ($ENV{'environment.remote'} eq 'off')) {
607: # Remote
608: return "\n".
609: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
610: } elsif ($ENV{'browser.interface'} eq 'textual') {
611: # Accessibility
612: if ($nobreak==2) { return ''; }
613: my $text=$top.' '.$bot;
614: $text=~s/\- //;
615: $inlineremote[10*$row+$col]="\n".($nobreak?' ':'<br />').
616: '<a href="javascript:'.$act.';">'.$text.'</a> '.
617: ($nobreak?'':$desc);
618: } else {
619: # Inline Remote
620: if ($nobreak==2) { return ''; }
621: my $text=$top.' '.$bot;
622: $text=~s/\- //;
623: $inlineremote[10*$row+$col]="\n".
624: ($nobreak==3?'<td width="50%" colspan="2" align="right"':'<tr><td').
625: ' bgcolor="'.$tabbg.'"'.($nobreak==1?' width="50%" colspan="2"':'').
626: '"><a href="javascript:'.$act.';"><font color="'.$font.'"'.
627: ($nobreak?' size="+1"':'').
628: '>'.$text.'</font></a></td>'.
629: ($nobreak?'':'<td colspan="3" width="80%"><font color="'.$font.'" size="-1">'.$desc.'</font>').($nobreak!=1?'</tr>':'');
630: }
631: return '';
632: }
633:
634: sub secondlevel {
635: my $output='';
636: my
637: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
638: if ($prt eq 'any') {
639: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
640: } elsif ($prt=~/^r(\w+)/) {
641: if ($rol eq $1) {
642: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
643: }
644: }
645: return $output;
646: }
647:
648: sub openmenu {
649: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
650: if (($ENV{'browser.interface'} eq 'textual') ||
651: ($ENV{'environment.remote'} eq 'off')) { return ''; }
652: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
653: return "window.open(".$nothing.",'".$menuname."');";
654: }
655:
656: sub inlinemenu {
657: @inlineremote=();
658: undef @inlineremote;
659: &rawconfig(1);
660: return join('',map { (defined($_)?$_:'') } @inlineremote);
661: }
662:
663: sub rawconfig {
664: my $textualoverride=shift;
665: my $output='';
666: unless (($ENV{'browser.interface'} eq 'textual') ||
667: ($ENV{'environment.remote'} eq 'off')) {
668: $output.=
669: "window.status='Opening Remote Control';var swmenu=".&openmenu().
670: "\nwindow.status='Configuring Remote Control ';";
671: } else {
672: unless ($textualoverride) { return ''; }
673: }
674: my $uname=$ENV{'user.name'};
675: my $udom=$ENV{'user.domain'};
676: my $adv=$ENV{'user.adv'};
677: my $author=$ENV{'user.author'};
678: my $crs='';
679: if ($ENV{'request.course.id'}) {
680: $crs='/'.$ENV{'request.course.id'};
681: if ($ENV{'request.course.sec'}) {
682: $crs.='_'.$ENV{'request.course.sec'};
683: }
684: $crs=~s/\_/\//g;
685: }
686: my $pub=($ENV{'request.state'} eq 'published');
687: my $con=($ENV{'request.state'} eq 'construct');
688: my $rol=$ENV{'request.role'};
689: my $requested_domain = $ENV{'request.role.domain'};
690: foreach (@desklines) {
691: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
692: $prt=~s/\$uname/$uname/g;
693: $prt=~s/\$udom/$udom/g;
694: $prt=~s/\$crs/$crs/g;
695: $prt=~s/\$requested_domain/$requested_domain/g;
696: if ($pro eq 'clear') {
697: $output.=&clear($row,$col);
698: } elsif ($pro eq 'any') {
699: $output.=&secondlevel(
700: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
701: } elsif ($pro eq 'smp') {
702: unless ($adv) {
703: $output.=&secondlevel(
704: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
705: }
706: } elsif ($pro eq 'adv') {
707: if ($adv) {
708: $output.=&secondlevel(
709: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
710: }
711: } elsif (($pro=~/p(\w+)/) && ($prt)) {
712: if (&Apache::lonnet::allowed($1,$prt)) {
713: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
714: }
715: } elsif ($pro eq 'course') {
716: if ($ENV{'request.course.fn'}) {
717: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
718: }
719: } elsif ($pro eq 'author') {
720: if ($author) {
721: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
722: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
723: # Check that we are on the correct machine
724: my $cadom=$requested_domain;
725: my $caname=$ENV{'user.name'};
726: if ($prt eq 'rca') {
727: ($cadom,$caname)=
728: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
729: }
730: $act =~ s/\$caname/$caname/g;
731: my $home = &Apache::lonnet::homeserver($caname,$cadom);
732: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
733: $output.=switch($caname,$cadom,
734: $row,$col,$img,$top,$bot,$act,$desc);
735: }
736: }
737: }
738: }
739: }
740: unless (($ENV{'browser.interface'} eq 'textual') ||
741: ($ENV{'environment.remote'} eq 'off')) {
742: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
743: }
744: return $output;
745: }
746:
747: # ======================================================================= Close
748:
749: sub close {
750: if (($ENV{'browser.interface'} eq 'textual') ||
751: ($ENV{'environment.remote'} eq 'off')) { return ''; }
752: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
753: return(<<ENDCLOSE);
754: <script>
755: window.status='Accessing Remote Control';
756: menu=window.open("/adm/rat/empty.html","$menuname",
757: "height=350,width=150,scrollbars=no,menubar=no");
758: window.status='Disabling Remote Control';
759: menu.active=0;
760: menu.autologout=0;
761: window.status='Closing Remote Control';
762: menu.close();
763: window.status='Done.';
764: </script>
765: ENDCLOSE
766: }
767:
768: # ====================================================================== Footer
769:
770: sub footer {
771:
772: }
773:
774: sub utilityfunctions {
775: unless (($ENV{'browser.interface'} eq 'textual') ||
776: ($ENV{'environment.remote'} eq 'off')) { return ''; }
777: my $currenturl=$ENV{'REQUEST_URI'};
778: my $currentsymb=$ENV{'request.symb'};
779: return (<<ENDUTILITY)
780:
781: var currentURL="$currenturl";
782: var reloadURL="$currenturl";
783: var currentSymb="$currentsymb";
784:
785: function go(url) {
786: if (url!='' && url!= null) {
787: currentURL = null;
788: currentSymb= null;
789: window.location.href=url;
790: }
791: }
792:
793: function gopost(url,postdata) {
794: if (url!='') {
795: this.document.server.action=url;
796: this.document.server.postdata.value=postdata;
797: this.document.server.command.value='';
798: this.document.server.url.value='';
799: this.document.server.symb.value='';
800: this.document.server.submit();
801: }
802: }
803:
804: function gocmd(url,cmd) {
805: if (url!='') {
806: this.document.server.action=url;
807: this.document.server.postdata.value='';
808: this.document.server.command.value=cmd;
809: this.document.server.url.value=currentURL;
810: this.document.server.symb.value=currentSymb;
811: this.document.server.submit();
812: }
813: }
814:
815: function catalog_info() {
816: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizeable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
817: }
818:
819: function chat_win() {
820: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizeable=yes,location=no,menubar=no,toolbar=no');
821: }
822: ENDUTILITY
823: }
824:
825: sub serverform {
826: return(<<ENDSERVERFORM);
827:
828: <form name="server" action="/adm/logout" method="post" target="_top">
829: <input type="hidden" name="postdata" value="none" />
830: <input type="hidden" name="command" value="none" />
831: <input type="hidden" name="url" value="none" />
832: <input type="hidden" name="symb" value="none" />
833: </form>
834: ENDSERVERFORM
835: }
836: # ================================================ Handler when called directly
837:
838:
839: sub handler {
840: my $r = shift;
841: $r->content_type('text/html');
842: $r->send_http_header;
843: return OK if $r->header_only;
844:
845: my $form=&serverform();
846: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
847: my $function='student';
848: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
849: $function='coordinator';
850: }
851: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
852: $function='admin';
853: }
854: if (($ENV{'request.role'}=~/^(au|ca)/) ||
855: ($ENV{'REQUEST_URI'}=~/^(\/priv|\~)/)) {
856: $function='author';
857: }
858: my $domain=&Apache::loncommon::determinedomain();
859: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
860: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
861: $font=&Apache::loncommon::designparm($function.'.font',$domain);
862: # ---- Print the screen, pretent to be in text mode to generate text-based menu
863: unless ($ENV{'brower.interface'} eq 'textual') {
864: $ENV{'environment.remote'}='off';
865: }
866: my $utility=&utilityfunctions();
867: $r->print(<<ENDHEADER);
868: <html><head>
869: <title>LON-CAPA Main Menu</title>
870: <script>
871: $utility
872: </script>
873: </head>
874: $bodytag
875: ENDHEADER
876: $r->print('<table>'.&inlinemenu().'</table>'.$form);
877: $r->print('</body></html>');
878: return OK;
879: }
880:
881: # ================================================================ Main Program
882:
883: BEGIN {
884: if (! defined($readdesk)) {
885: {
886: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
887: '/mydesk.tab');
888: while (my $configline=<$config>) {
889: $configline=(split(/\#/,$configline))[0];
890: $configline=~s/^\s+//;
891: chomp($configline);
892: if ($configline) {
893: $desklines[$#desklines+1]=$configline;
894: }
895: }
896: }
897: $readdesk='done';
898: }
899: }
900:
901: 1;
902: __END__
903:
904:
905:
906:
907:
908:
909:
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