1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.102 2003/11/11 20:27:15 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 Apache::lonlocal;
48:
49: use vars qw(@desklines $readdesk);
50:
51:
52: my @inlineremote;
53: my $font;
54: my $tabbg;
55: my $pgbg;
56:
57: # ================================================================ Little texts
58:
59: sub initlittle {
60: return &Apache::lonlocal::texthash('ret' => 'Return to Last Location',
61: 'nav' => 'Navigate Contents',
62: 'main' => 'Main Menu',
63: 'launch' => 'Launch Remote Control');
64: }
65:
66: # ============================= This gets called at the top of the body section
67:
68: sub menubuttons {
69: my $forcereg=shift;
70: my $target =shift;
71: my $registration=shift;
72: my $navmaps='';
73: my $reloadlink='';
74: my $escurl=&Apache::lonnet::escape($ENV{'request.noversionuri'});
75: my $escsymb=&Apache::lonnet::escape($ENV{'request.symb'});
76: if ($ENV{'browser.interface'} eq 'textual') {
77: # Textual display only
78: my %lt=&initlittle();
79: $pgbg='#FFFFFF';
80: $tabbg='#FFFFFF';
81: $font='#000000';
82: if ($ENV{'request.course.id'}) {
83: $navmaps=(<<ENDNAV);
84: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">$lt{'nav'}</a>
85: ENDNAV
86: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
87: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
88: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
89: my $escreload=&Apache::lonnet::escape('return:');
90: $reloadlink=(<<ENDRELOAD);
91: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a>
92: ENDRELOAD
93: }
94: }
95: my $output=(<<ENDMAINMENU);
96: <script>
97: // BEGIN LON-CAPA Internal
98: </script>
99: <a href="/adm/menu" target="_top">$lt{'main'}</a>
100: $reloadlink $navmaps<br />
101: <script>
102: // END LON-CAPA Internal
103: </script>
104: ENDMAINMENU
105: if ($registration) { $output.=&innerregister($forcereg,$target); }
106: return $output."<hr />";
107: } elsif ($ENV{'environment.remote'} eq 'off') {
108: # Remote Control is switched off
109: # figure out colors
110: my %lt=&initlittle();
111: my $function='student';
112: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
113: $function='coordinator';
114: }
115: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
116: $function='admin';
117: }
118: if (($ENV{'request.role'}=~/^(au|ca)/) ||
119: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
120: $function='author';
121: }
122: my $domain=&Apache::loncommon::determinedomain();
123: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
124: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
125: $font=&Apache::loncommon::designparm($function.'.font',$domain);
126: my $link=&Apache::loncommon::designparm($function.'.link',$domain);
127: my $alink=&Apache::loncommon::designparm($function.'.alink',$domain);
128: my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain);
129: my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain);
130: # Do we have a NAV link?
131: if ($ENV{'request.course.id'}) {
132: $navmaps=(<<ENDNAVREM);
133: <td bgcolor="$tabbg">
134: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top"><font color="$font">$lt{'nav'}</font></a></td>
135: ENDNAVREM
136: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
137: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
138: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
139: my $escreload=&Apache::lonnet::escape('return:');
140: $reloadlink=(<<ENDRELOAD);
141: <td bgcolor="$tabbg">
142: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a></td>
143: ENDRELOAD
144: }
145: }
146: my $reg='';
147: if ($registration) {
148: $reg=&innerregister($forcereg,$target);
149: }
150: return (<<ENDINLINEMENU);
151: <script>
152: // BEGIN LON-CAPA Internal
153: </script>
154: <font face="Arial,Helvetica,sans-serif"><table bgcolor="$pgbg" width="100%" border="0" cellpadding="1" cellspacing="1">
155: <tr>
156: <td bgcolor="$tabbg">
157: <a href="/adm/menu" target="_top"><font color="$font">$lt{'main'}</font></a>
158: </td>
159: $reloadlink
160: $navmaps
161: <td bgcolor="$tabbg">
162: <a href="/adm/remote?action=launch&url=$escurl" target="_top">
163: <font color="$font">$lt{'launch'}</font></a></td>
164: <td bgcolor="$tabbg">
165: <img align="right" src="/adm/lonIcons/minilogo.gif" />
166: <b>LON-CAPA</b></td>
167: </tr>
168: </table>
169: </font>
170: <script>
171: // END LON-CAPA Internal
172: </script>
173: $reg
174: ENDINLINEMENU
175: } else {
176: return '';
177: }
178: }
179:
180: # ====================================== This gets called in the header section
181:
182: sub registerurl {
183: my $forcereg=shift;
184: my $target = shift;
185: my $result = '';
186: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
187: my $force_title='';
188: if ($ENV{'request.state'} eq 'construct') {
189: $force_title=&Apache::lonxml::display_title();
190: }
191: if ($target eq 'edit') {
192: $result .="<script type=\"text/javascript\">\n".
193: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
194: &Apache::loncommon::browser_and_searcher_javascript().
195: "\n</script>\n";
196: }
197: if (($ENV{'browser.interface'} eq 'textual') ||
198: ($ENV{'environment.remote'} eq 'off') ||
199: ((($ENV{'request.publicaccess'}) ||
200: (!&Apache::lonnet::is_on_map(
201: &Apache::lonnet::unescape($ENV{'request.noversionuri'})))) &&
202: (!$forcereg))) {
203: return $result.
204: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
205: }
206: # Graphical display after login only
207: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
208: if ($target ne 'edit') {
209: $result.=&innerregister($forcereg,$target);
210: }
211: return $result.$force_title;
212: }
213:
214: # =========== This gets called in order to register a URL, both with the Remote
215: # =========== and in the body of the document
216:
217: sub innerregister {
218: my $forcereg=shift;
219: my $target = shift;
220: my $result = '';
221: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
222:
223: $Apache::lonxml::registered=1;
224:
225: my $textinter=($ENV{'browser.interface'} eq 'textual');
226: my $noremote=($ENV{'environment.remote'} eq 'off');
227:
228: my $textual=($textinter || $noremote);
229:
230: @inlineremote=();
231: undef @inlineremote;
232:
233: my $reopen=&Apache::lonmenu::reopenmenu();
234:
235: my $newmail='';
236: if ($noremote) {
237: $newmail='<font face="Arial,Helvetica,sans-serif"><table bgcolor="'.$pgbg.'" border="0" cellspacing="1" cellpadding="1" width="100%"><tr><td bgcolor="'.$tabbg.'">';
238: }
239: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
240: my ($mapurl,$rid,$resurl)=&Apache::lonnet::decode_symb($ENV{'request.symb'});
241: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
242: my $maptitle=&Apache::lonnet::gettitle($mapurl);
243: my $restitle=&Apache::lonnet::gettitle($resurl);
244: if ($maptitle) {
245: $newmail.=', '.$maptitle;
246: }
247: if ($restitle) {
248: $newmail.=': '.$restitle;
249: }
250: $newmail.=' ';
251: }
252: if (&Apache::lonmsg::newmail()) {
253: $newmail=($textual?
254: '<b><a href="/adm/communicate" target="_top">You have new messages</a></b><br />':
255: 'swmenu.setstatus("you have","messages");');
256: }
257: if ($noremote) {
258: $newmail.='</td></tr></table></font>';
259: }
260: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
261: my $tablestart=($noremote?'<font face="Arial,Helvetica,sans-serif"><table bgcolor="'.$pgbg.'" border="0" cellspacing="1" cellpadding="1" width="100%">':'').($textinter?'<br /><a href="#content">'.&mt('Skip to Content').'</a><br />':'');
262: my $tableend=($noremote?'</table></font>':'').($textinter?'<a name="content" />':'');
263: # =============================================================================
264: # ============================ This is for URLs that actually can be registered
265: if (($ENV{'request.noversionuri'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
266: # -- This applies to homework problems for users with grading privileges
267: my $hwkadd='';
268: if
269: ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
270: my $crs='/'.$ENV{'request.course.id'};
271: if ($ENV{'request.course.sec'}) {
272: $crs.='_'.$ENV{'request.course.sec'};
273: }
274: $crs=~s/\_/\//g;
275:
276: if (&Apache::lonnet::allowed('vgr',$crs)) {
277: $hwkadd.=&switch('','',7,1,'subm.gif','view sub-','missions',
278: "gocmd('/adm/grades','submission')",
279: 'View user submissions for this assessment resource');
280: }
281: if (&Apache::lonnet::allowed('mgr',$crs)) {
282: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem','grades',
283: "gocmd('/adm/grades','gradingmenu')",
284: 'Modify user grades for this assessment resource');
285: }
286: if (&Apache::lonnet::allowed('opa',$crs)) {
287: $hwkadd.=&switch('','',7,3,'pparm.gif','problem','parms',
288: "gocmd('/adm/parmset','set')",
289: 'Modify deadlines, etc, for this assessment resource');
290: }
291: }
292: # -- End Homework
293: ###
294: ### Determine whether or not to display the 'cstr' button for this
295: ### resource
296: ###
297: my $editbutton = '';
298: if ($ENV{'user.author'}) {
299: if ($ENV{'request.role'}=~/^(ca|au)/) {
300: # Set defaults for authors
301: my ($top,$bottom) = ('con-','struct');
302: my $action = "go('/priv/".$ENV{'user.name'}."');";
303: my $cadom = $ENV{'request.role.domain'};
304: my $caname = $ENV{'user.name'};
305: my $desc = "Enter my resource construction space";
306: # Set defaults for co-authors
307: if ($ENV{'request.role'} =~ /^ca/) {
308: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
309: ($top,$bottom) = ('co con-','struct');
310: $action = "go('/priv/".$caname."');";
311: $desc = "Enter construction space as co-author";
312: }
313: # Check that we are on the correct machine
314: my $home = &Apache::lonnet::homeserver($caname,$cadom);
315: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
316: $editbutton=&switch
317: ('','',6,1,$top,,$bottom,$action,$desc);
318: }
319: }
320: ##
321: ## Determine if user can edit url.
322: ##
323: my $cfile='';
324: my $cfuname='';
325: my $cfudom='';
326: if ($ENV{'request.filename'}) {
327: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
328: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
329: # Chech that the user has permission to edit this resource
330: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
331: if (defined($cfudom)) {
332: if (&Apache::lonnet::homeserver($cfuname,$cfudom)
333: eq $Apache::lonnet::perlvar{'lonHostID'}) {
334: $cfile=$file;
335: }
336: }
337: }
338: # Finally, turn the button on or off
339: if ($cfile) {
340: $editbutton=&switch
341: ('','',6,1,'cstr.gif','edit','resource',
342: "go('".$cfile."');","Edit this resource");
343: } elsif ($editbutton eq '') {
344: $editbutton=&clear(6,1);
345: }
346: }
347: ###
348: ###
349: # Prepare the rest of the buttons
350: my $menuitems=(<<ENDMENUITEMS);
351: c&3&1
352: s&2&1&back.gif&backward&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
353: s&2&3&forw.gif&forward&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
354: c&6&3
355: c&8&1
356: c&8&2
357: s&8&3&prt.gif&prepare&printout&gopost('/adm/printout',currentURL)&Prepare a printable document
358: s&9&1&sbkm.gif&set&bookmark&set_bookmark()&Set a bookmark for this resource&2
359: s&9&3&anot.gif&anno-&tations&annotate()&Make notes and annotations about this resource&2
360: ENDMENUITEMS
361: unless ($ENV{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
362: $menuitems.=(<<ENDREALRES);
363: s&6&3&catalog.gif&catalog&info&catalog_info()&Show catalog information
364: s&8&1&eval.gif&evaluate&this&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
365: s&8&2&fdbk.gif&feedback&discuss&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
366: ENDREALRES
367: }
368: my $buttons='';
369: foreach (split(/\n/,$menuitems)) {
370: my ($command,@rest)=split(/\&/,$_);
371: if ($command eq 's') {
372: $buttons.=&switch('','',@rest);
373: } else {
374: $buttons.=&clear(@rest);
375: }
376: }
377: if ($textual) {
378: # Registered, textual output
379: my $utility=&utilityfunctions();
380: my $form=&serverform();
381: my $inlinebuttons=
382: join('',map { (defined($_)?$_:'') } @inlineremote);
383: $result =(<<ENDREGTEXT);
384: <script>
385: // BEGIN LON-CAPA Internal
386: $utility
387: </script>
388: $timesync
389: $newmail
390: $tablestart
391: $inlinebuttons
392: $tableend
393: $form
394: <script>
395: // END LON-CAPA Internal
396: </script>
397:
398: ENDREGTEXT
399: # Registered, graphical output
400: } else {
401: my $requri=(split(/\?/,$ENV{'request.noversionuri'}))[0];
402: $requri=&Apache::lonnet::unescape($requri);
403: $result = (<<ENDREGTHIS);
404:
405: <script language="JavaScript">
406: // BEGIN LON-CAPA Internal
407: var swmenu=null;
408:
409: function LONCAPAreg() {
410: swmenu=$reopen;
411: swmenu.clearTimeout(swmenu.menucltim);
412: $timesync
413: $newmail
414: $buttons
415: swmenu.currentURL="$requri";
416: swmenu.reloadURL=swmenu.currentURL+window.location.search;
417: swmenu.currentSymb="$ENV{'request.symb'}";
418: swmenu.reloadSymb="$ENV{'request.symb'}";
419: swmenu.currentStale=0;
420: $hwkadd
421: $editbutton
422: }
423:
424: function LONCAPAstale() {
425: swmenu=$reopen
426: swmenu.currentStale=1;
427: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
428: swmenu.switchbutton
429: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
430: }
431: swmenu.clearbut(7,1);
432: swmenu.clearbut(7,2);
433: swmenu.clearbut(7,3);
434: swmenu.menucltim=swmenu.setTimeout(
435: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
436: 'clearbut(9,1);clearbut(9,2);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
437: 2000);
438: }
439:
440: // END LON-CAPA Internal
441: </script>
442: ENDREGTHIS
443: }
444: # =============================================================================
445: } else {
446: # ========================================== This can or will not be registered
447: if ($textual) {
448: # Not registered, textual
449: $result= (<<ENDDONOTREGTEXT);
450: ENDDONOTREGTEXT
451: } else {
452: # Not registered, graphical
453: $result = (<<ENDDONOTREGTHIS);
454:
455: <script language="JavaScript">
456: // BEGIN LON-CAPA Internal
457: var swmenu=null;
458:
459: function LONCAPAreg() {
460: swmenu=$reopen
461: $timesync
462: swmenu.currentStale=1;
463: swmenu.clearbut(2,1);
464: swmenu.clearbut(2,3);
465: swmenu.clearbut(8,1);
466: swmenu.clearbut(8,2);
467: swmenu.clearbut(8,3);
468: if (swmenu.currentURL) {
469: swmenu.switchbutton
470: (3,1,'reload.gif','return','location','go(currentURL)');
471: } else {
472: swmenu.clearbut(3,1);
473: }
474: }
475:
476: function LONCAPAstale() {
477: }
478:
479: // END LON-CAPA Internal
480: </script>
481: ENDDONOTREGTHIS
482: }
483: # =============================================================================
484: }
485: return $result;
486: }
487:
488: sub loadevents() {
489: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
490: return 'LONCAPAreg();';
491: }
492:
493: sub unloadevents() {
494: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
495: return 'LONCAPAstale();';
496: }
497:
498: # ============================================================= Start up remote
499:
500: sub startupremote {
501: my ($lowerurl)=@_;
502: if (($ENV{'browser.interface'} eq 'textual') ||
503: ($ENV{'environment.remote'} eq 'off')) {
504: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
505: }
506: #
507: # The Remote actually gets launched!
508: #
509: my $configmenu=&rawconfig();
510: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
511:
512: return(<<ENDREMOTESTARTUP);
513: <script>
514:
515: function wheelswitch() {
516: if (window.status=='|') {
517: window.status='/';
518: } else {
519: if (window.status=='/') {
520: window.status='-';
521: } else {
522: if (window.status=='-') {
523: window.status='\\\\';
524: } else {
525: if (window.status=='\\\\') { window.status='|'; }
526: }
527: }
528: }
529: }
530:
531: // ---------------------------------------------------------- The wait function
532: var canceltim;
533: function wait() {
534: if ((menuloaded==1) || (tim==1)) {
535: window.status='Done.';
536: if (tim==0) {
537: clearTimeout(canceltim);
538: $configmenu
539: window.location='$lowerurl';
540: } else {
541: window.location='/adm/remote?action=collapse&url=$esclowerurl';
542: }
543: } else {
544: wheelswitch();
545: setTimeout('wait();',200);
546: }
547: }
548:
549: function main() {
550: canceltim=setTimeout('tim=1;',30000);
551: window.status='-';
552: wait();
553: }
554:
555: </script>
556: ENDREMOTESTARTUP
557: }
558:
559: sub setflags() {
560: return(<<ENDSETFLAGS);
561: <script>
562: menuloaded=0;
563: tim=0;
564: </script>
565: ENDSETFLAGS
566: }
567:
568: sub maincall() {
569: if (($ENV{'browser.interface'} eq 'textual') ||
570: ($ENV{'environment.remote'} eq 'off')) { return ''; }
571: return(<<ENDMAINCALL);
572: <script>
573: main();
574: </script>
575: ENDMAINCALL
576: }
577: # ================================================================= Reopen menu
578:
579: sub reopenmenu {
580: if (($ENV{'browser.interface'} eq 'textual') ||
581: ($ENV{'environment.remote'} eq 'off')) { return ''; }
582: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
583: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
584: return('window.open('.$nothing.',"'.$menuname.'","",false);');
585: }
586:
587: # =============================================================== Open the menu
588:
589: sub open {
590: my $returnval='';
591: if (($ENV{'browser.interface'} eq 'textual') ||
592: ($ENV{'environment.remote'} eq 'off')) { return ''; }
593: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
594: unless (shift eq 'unix') {
595: # resizing does not work on linux because of virtual desktop sizes
596: $returnval.=(<<ENDRESIZE);
597: if (window.screen) {
598: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
599: self.moveTo(190,15);
600: }
601: ENDRESIZE
602: }
603: $returnval.=(<<ENDOPEN);
604: window.status='Opening LON-CAPA Remote Control';
605: var menu=window.open("/res/adm/pages/menu.html","$menuname",
606: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
607: self.name='loncapaclient';
608: ENDOPEN
609: return '<script>'.$returnval.'</script>';
610: }
611:
612:
613: # ================================================================== Raw Config
614:
615: sub clear {
616: my ($row,$col)=@_;
617: unless (($ENV{'browser.interface'} eq 'textual') ||
618: ($ENV{'environment.remote'} eq 'off')) {
619: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
620: } else {
621: $inlineremote[10*$row+$col]='';
622: return '';
623: }
624: }
625:
626: # ============================================ Switch a button or create a link
627: # Switch acts on the javascript that is executed when a button is clicked.
628: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
629:
630: sub switch {
631: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
632: $act=~s/\$uname/$uname/g;
633: $act=~s/\$udom/$udom/g;
634: $top=&mt($top);
635: $bot=&mt($bot);
636: $desc=&mt($desc);
637: unless (($ENV{'browser.interface'} eq 'textual') ||
638: ($ENV{'environment.remote'} eq 'off')) {
639: # Remote
640: return "\n".
641: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
642: } elsif ($ENV{'browser.interface'} eq 'textual') {
643: # Accessibility
644: if ($nobreak==2) { return ''; }
645: my $text=$top.' '.$bot;
646: $text=~s/\s*\-\s*//gs;
647: if ($nobreak) {
648: $inlineremote[10*$row+$col]=
649: '<a href="javascript:'.$act.';">'.$text.'</a>';
650: } else {
651: $inlineremote[10*$row+$col]="\n<br />".
652: $desc.' <a href="javascript:'.$act.';">'.$text.'</a>';
653: }
654: } else {
655: # Inline Remote
656: if ($nobreak==2) { return ''; }
657: my $text=$top.' '.$bot;
658: $text=~s/\s*\-\s*//gs;
659: my $pic=
660: '<img border="0" alt="'.$text.'" src="/res/adm/pages/'.$img.'" />';
661: if ($nobreak==3) {
662: $inlineremote[10*$row+$col]="\n".
663: '<td width="40%" align="right"><font color="'.$font.'" size="+1">'.$text.
664: '</font></td><td width="10%" align="right" bgcolor="'.$tabbg.'">'.
665: '<a href="javascript:'.$act.';">'.$pic.'</a></td></tr>';
666: } elsif ($nobreak) {
667: $inlineremote[10*$row+$col]="\n<tr>".
668: '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
669: '<a href="javascript:'.$act.';">'.$pic.
670: '</a></td><td width="40%" align="left"><font color="'.$font.'" size="+1">'.$text.'</font></td>';
671: } else {
672: $inlineremote[10*$row+$col]="\n<tr>".
673: '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
674: '<a href="javascript:'.$act.';">'.$pic.
675: '</a></td><td colspan="3"><font color="'.$font.'">'.$desc.
676: '</font></td></tr>';
677: }
678: }
679: return '';
680: }
681:
682: sub secondlevel {
683: my $output='';
684: my
685: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
686: if ($prt eq 'any') {
687: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
688: } elsif ($prt=~/^r(\w+)/) {
689: if ($rol eq $1) {
690: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
691: }
692: }
693: return $output;
694: }
695:
696: sub openmenu {
697: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
698: if (($ENV{'browser.interface'} eq 'textual') ||
699: ($ENV{'environment.remote'} eq 'off')) { return ''; }
700: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
701: return "window.open(".$nothing.",'".$menuname."');";
702: }
703:
704: sub inlinemenu {
705: @inlineremote=();
706: undef @inlineremote;
707: &rawconfig(1);
708: return join('',map { (defined($_)?$_:'') } @inlineremote);
709: }
710:
711: sub rawconfig {
712: my $textualoverride=shift;
713: my $output='';
714: unless (($ENV{'browser.interface'} eq 'textual') ||
715: ($ENV{'environment.remote'} eq 'off')) {
716: $output.=
717: "window.status='Opening Remote Control';var swmenu=".&openmenu().
718: "\nwindow.status='Configuring Remote Control ';";
719: } else {
720: unless ($textualoverride) { return ''; }
721: }
722: my $uname=$ENV{'user.name'};
723: my $udom=$ENV{'user.domain'};
724: my $adv=$ENV{'user.adv'};
725: my $author=$ENV{'user.author'};
726: my $crs='';
727: if ($ENV{'request.course.id'}) {
728: $crs='/'.$ENV{'request.course.id'};
729: if ($ENV{'request.course.sec'}) {
730: $crs.='_'.$ENV{'request.course.sec'};
731: }
732: $crs=~s/\_/\//g;
733: }
734: my $pub=($ENV{'request.state'} eq 'published');
735: my $con=($ENV{'request.state'} eq 'construct');
736: my $rol=$ENV{'request.role'};
737: my $requested_domain = $ENV{'request.role.domain'};
738: foreach (@desklines) {
739: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
740: $prt=~s/\$uname/$uname/g;
741: $prt=~s/\$udom/$udom/g;
742: $prt=~s/\$crs/$crs/g;
743: $prt=~s/\$requested_domain/$requested_domain/g;
744: if ($pro eq 'clear') {
745: $output.=&clear($row,$col);
746: } elsif ($pro eq 'any') {
747: $output.=&secondlevel(
748: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
749: } elsif ($pro eq 'smp') {
750: unless ($adv) {
751: $output.=&secondlevel(
752: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
753: }
754: } elsif ($pro eq 'adv') {
755: if ($adv) {
756: $output.=&secondlevel(
757: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
758: }
759: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
760: if (&Apache::lonnet::allowed($1,$prt)) {
761: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
762: }
763: } elsif ($pro eq 'course') {
764: if ($ENV{'request.course.fn'}) {
765: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
766: }
767: } elsif ($pro =~ /^course_(.*)$/) {
768: # Check for permissions inside of a course
769: if (($ENV{'request.course.id'}) &&
770: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
771: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
772: )) {
773: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
774: }
775: } elsif ($pro eq 'author') {
776: if ($author) {
777: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
778: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
779: # Check that we are on the correct machine
780: my $cadom=$requested_domain;
781: my $caname=$ENV{'user.name'};
782: if ($prt eq 'rca') {
783: ($cadom,$caname)=
784: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
785: }
786: $act =~ s/\$caname/$caname/g;
787: my $home = &Apache::lonnet::homeserver($caname,$cadom);
788: if ($home eq $Apache::lonnet::perlvar{'lonHostID'}) {
789: $output.=switch($caname,$cadom,
790: $row,$col,$img,$top,$bot,$act,$desc);
791: }
792: }
793: }
794: }
795: }
796: unless (($ENV{'browser.interface'} eq 'textual') ||
797: ($ENV{'environment.remote'} eq 'off')) {
798: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
799: }
800: return $output;
801: }
802:
803: # ======================================================================= Close
804:
805: sub close {
806: if (($ENV{'browser.interface'} eq 'textual') ||
807: ($ENV{'environment.remote'} eq 'off')) { return ''; }
808: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
809: return(<<ENDCLOSE);
810: <script>
811: window.status='Accessing Remote Control';
812: menu=window.open("/adm/rat/empty.html","$menuname",
813: "height=350,width=150,scrollbars=no,menubar=no");
814: window.status='Disabling Remote Control';
815: menu.active=0;
816: menu.autologout=0;
817: window.status='Closing Remote Control';
818: menu.close();
819: window.status='Done.';
820: </script>
821: ENDCLOSE
822: }
823:
824: # ====================================================================== Footer
825:
826: sub footer {
827:
828: }
829:
830: sub utilityfunctions {
831: unless (($ENV{'browser.interface'} eq 'textual') ||
832: ($ENV{'environment.remote'} eq 'off')) { return ''; }
833: my $currenturl=$ENV{'request.noversionuri'};
834: my $currentsymb=$ENV{'request.symb'};
835: return (<<ENDUTILITY)
836:
837: var currentURL="$currenturl";
838: var reloadURL="$currenturl";
839: var currentSymb="$currentsymb";
840:
841: function go(url) {
842: if (url!='' && url!= null) {
843: currentURL = null;
844: currentSymb= null;
845: window.location.href=url;
846: }
847: }
848:
849: function gopost(url,postdata) {
850: if (url!='') {
851: this.document.server.action=url;
852: this.document.server.postdata.value=postdata;
853: this.document.server.command.value='';
854: this.document.server.url.value='';
855: this.document.server.symb.value='';
856: this.document.server.submit();
857: }
858: }
859:
860: function gocmd(url,cmd) {
861: if (url!='') {
862: this.document.server.action=url;
863: this.document.server.postdata.value='';
864: this.document.server.command.value=cmd;
865: this.document.server.url.value=currentURL;
866: this.document.server.symb.value=currentSymb;
867: this.document.server.submit();
868: }
869: }
870:
871: function catalog_info() {
872: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
873: }
874:
875: function chat_win() {
876: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizable=yes,location=no,menubar=no,toolbar=no');
877: }
878: ENDUTILITY
879: }
880:
881: sub serverform {
882: return(<<ENDSERVERFORM);
883:
884: <form name="server" action="/adm/logout" method="post" target="_top">
885: <input type="hidden" name="postdata" value="none" />
886: <input type="hidden" name="command" value="none" />
887: <input type="hidden" name="url" value="none" />
888: <input type="hidden" name="symb" value="none" />
889: </form>
890: ENDSERVERFORM
891: }
892: # ================================================ Handler when called directly
893:
894:
895: sub handler {
896: my $r = shift;
897: &Apache::loncommon::content_type($r,'text/html');
898: $r->send_http_header;
899: return OK if $r->header_only;
900:
901: my $form=&serverform();
902: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
903: my $function='student';
904: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
905: $function='coordinator';
906: }
907: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
908: $function='admin';
909: }
910: if (($ENV{'request.role'}=~/^(au|ca)/) ||
911: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
912: $function='author';
913: }
914: my $domain=&Apache::loncommon::determinedomain();
915: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
916: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
917: $font=&Apache::loncommon::designparm($function.'.font',$domain);
918: # ---- Print the screen, pretent to be in text mode to generate text-based menu
919: unless ($ENV{'brower.interface'} eq 'textual') {
920: $ENV{'environment.remote'}='off';
921: }
922: my $utility=&utilityfunctions();
923: $r->print(<<ENDHEADER);
924: <html><head>
925: <title>LON-CAPA Main Menu</title>
926: <script>
927: $utility
928: </script>
929: </head>
930: $bodytag
931: ENDHEADER
932: $r->print('<table>'.&inlinemenu().'</table>'.$form);
933: $r->print('</body></html>');
934: return OK;
935: }
936:
937: # ================================================================ Main Program
938:
939: BEGIN {
940: if (! defined($readdesk)) {
941: {
942: my $config=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
943: '/mydesk.tab');
944: while (my $configline=<$config>) {
945: $configline=(split(/\#/,$configline))[0];
946: $configline=~s/^\s+//;
947: chomp($configline);
948: if ($configline) {
949: $desklines[$#desklines+1]=$configline;
950: }
951: }
952: }
953: $readdesk='done';
954: }
955: }
956:
957: 1;
958: __END__
959:
960:
961:
962:
963:
964:
965:
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