1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.109 2004/07/02 07:58:01 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::lonlocal;
47:
48: use vars qw(@desklines $readdesk);
49:
50:
51: my @inlineremote;
52: my $font;
53: my $tabbg;
54: my $pgbg;
55:
56: # ================================================================ Little texts
57:
58: sub initlittle {
59: return &Apache::lonlocal::texthash('ret' => 'Return to Last Location',
60: 'nav' => 'Navigate Contents',
61: 'main' => 'Main Menu',
62: 'launch' => 'Launch Remote Control');
63: }
64:
65: # ============================= This gets called at the top of the body section
66:
67: sub menubuttons {
68: my $forcereg=shift;
69: my $target =shift;
70: my $registration=shift;
71: my $navmaps='';
72: my $reloadlink='';
73: my $escurl=&Apache::lonnet::escape($ENV{'request.noversionuri'});
74: my $escsymb=&Apache::lonnet::escape($ENV{'request.symb'});
75: if ($ENV{'browser.interface'} eq 'textual') {
76: # Textual display only
77: my %lt=&initlittle();
78: $pgbg='#FFFFFF';
79: $tabbg='#FFFFFF';
80: $font='#000000';
81: if ($ENV{'request.course.id'}) {
82: $navmaps=(<<ENDNAV);
83: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">$lt{'nav'}</a>
84: ENDNAV
85: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
86: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
87: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
88: my $escreload=&Apache::lonnet::escape('return:');
89: $reloadlink=(<<ENDRELOAD);
90: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a>
91: ENDRELOAD
92: }
93: }
94: my $output=(<<ENDMAINMENU);
95: <script>
96: // BEGIN LON-CAPA Internal
97: </script>
98: <a href="/adm/menu" target="_top">$lt{'main'}</a>
99: $reloadlink $navmaps<br />
100: <script>
101: // END LON-CAPA Internal
102: </script>
103: ENDMAINMENU
104: if ($registration) { $output.=&innerregister($forcereg,$target); }
105: return $output."<hr />";
106: } elsif ($ENV{'environment.remote'} eq 'off') {
107: # Remote Control is switched off
108: # figure out colors
109: my %lt=&initlittle();
110: my $function='student';
111: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
112: $function='coordinator';
113: }
114: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
115: $function='admin';
116: }
117: if (($ENV{'request.role'}=~/^(au|ca)/) ||
118: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
119: $function='author';
120: }
121: my $domain=&Apache::loncommon::determinedomain();
122: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
123: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
124: $font=&Apache::loncommon::designparm($function.'.font',$domain);
125: my $link=&Apache::loncommon::designparm($function.'.link',$domain);
126: my $alink=&Apache::loncommon::designparm($function.'.alink',$domain);
127: my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain);
128: my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain);
129: # Do we have a NAV link?
130: if ($ENV{'request.course.id'}) {
131: $navmaps=(<<ENDNAVREM);
132: <td bgcolor="$tabbg">
133: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top"><font color="$font">$lt{'nav'}</font></a></td>
134: ENDNAVREM
135: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
136: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
137: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
138: my $escreload=&Apache::lonnet::escape('return:');
139: $reloadlink=(<<ENDRELOAD);
140: <td bgcolor="$tabbg">
141: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a></td>
142: ENDRELOAD
143: }
144: }
145: my $reg='';
146: if ($registration) {
147: $reg=&innerregister($forcereg,$target);
148: }
149: return (<<ENDINLINEMENU);
150: <script>
151: // BEGIN LON-CAPA Internal
152: </script>
153: <font face="Arial,Helvetica,sans-serif"><table bgcolor="$pgbg" width="100%" border="0" cellpadding="1" cellspacing="1">
154: <tr>
155: <td bgcolor="$tabbg">
156: <a href="/adm/menu" target="_top"><font color="$font">$lt{'main'}</font></a>
157: </td>
158: $reloadlink
159: $navmaps
160: <td bgcolor="$tabbg">
161: <a href="/adm/remote?action=launch&url=$escurl" target="_top">
162: <font color="$font">$lt{'launch'}</font></a></td>
163: <td bgcolor="$tabbg">
164: <img align="right" src="/adm/lonIcons/minilogo.gif" />
165: <b>LON-CAPA</b></td>
166: </tr>
167: </table>
168: </font>
169: <script>
170: // END LON-CAPA Internal
171: </script>
172: $reg
173: ENDINLINEMENU
174: } else {
175: return '';
176: }
177: }
178:
179: # ====================================== This gets called in the header section
180:
181: sub registerurl {
182: my $forcereg=shift;
183: my $target = shift;
184: my $result = '';
185: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
186: my $force_title='';
187: if ($ENV{'request.state'} eq 'construct') {
188: $force_title=&Apache::lonxml::display_title();
189: }
190: if ($target eq 'edit') {
191: $result .="<script type=\"text/javascript\">\n".
192: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
193: &Apache::loncommon::browser_and_searcher_javascript().
194: "\n</script>\n";
195: }
196: if (($ENV{'browser.interface'} eq 'textual') ||
197: ($ENV{'environment.remote'} eq 'off') ||
198: ((($ENV{'request.publicaccess'}) ||
199: (!&Apache::lonnet::is_on_map(
200: &Apache::lonnet::unescape($ENV{'request.noversionuri'})))) &&
201: (!$forcereg))) {
202: return $result.
203: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
204: }
205: # Graphical display after login only
206: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
207: if ($target ne 'edit') {
208: $result.=&innerregister($forcereg,$target);
209: }
210: return $result.$force_title;
211: }
212:
213: # =========== This gets called in order to register a URL, both with the Remote
214: # =========== and in the body of the document
215:
216: sub innerregister {
217: my $forcereg=shift;
218: my $target = shift;
219: my $result = '';
220: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
221:
222: $Apache::lonxml::registered=1;
223:
224: my $textinter=($ENV{'browser.interface'} eq 'textual');
225: my $noremote=($ENV{'environment.remote'} eq 'off');
226:
227: my $textual=($textinter || $noremote);
228:
229: @inlineremote=();
230: undef @inlineremote;
231:
232: my $reopen=&Apache::lonmenu::reopenmenu();
233:
234: my $newmail='';
235: if ($noremote) {
236: $newmail='<font face="Arial,Helvetica,sans-serif"><table bgcolor="'.$pgbg.'" border="0" cellspacing="1" cellpadding="1" width="100%"><tr><td bgcolor="'.$tabbg.'">';
237: }
238: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
239: my ($mapurl,$rid,$resurl)=&Apache::lonnet::decode_symb($ENV{'request.symb'});
240: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
241: my $maptitle=&Apache::lonnet::gettitle($mapurl);
242: my $restitle=&Apache::lonnet::gettitle($resurl);
243: if ($maptitle) {
244: $newmail.=', '.$maptitle;
245: }
246: if ($restitle) {
247: $newmail.=': '.$restitle;
248: }
249: $newmail.=' ';
250: }
251: if (&Apache::lonmsg::newmail()) {
252: $newmail=($textual?
253: '<b><a href="/adm/communicate" target="_top">You have new messages</a></b><br />':
254: 'swmenu.setstatus("you have","messages");');
255: }
256: if ($noremote) {
257: $newmail.='</td></tr></table></font>';
258: }
259: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
260: 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 />':'');
261: my $tableend=($noremote?'</table></font>':'').($textinter?'<a name="content" />':'');
262: # =============================================================================
263: # ============================ This is for URLs that actually can be registered
264: if (($ENV{'request.noversionuri'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
265: # -- This applies to homework problems for users with grading privileges
266: my $crs='/'.$ENV{'request.course.id'};
267: if ($ENV{'request.course.sec'}) {
268: $crs.='_'.$ENV{'request.course.sec'};
269: }
270: $crs=~s/\_/\//g;
271:
272: my $hwkadd='';
273: if ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
274: if (&Apache::lonnet::allowed('vgr',$crs)) {
275: $hwkadd.=&switch('','',7,1,'subm.gif','view sub-[_1]','missions[_1]',
276: "gocmd('/adm/grades','submission')",
277: 'View user submissions for this assessment resource');
278: }
279: if (&Apache::lonnet::allowed('mgr',$crs)) {
280: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem[_1]','grades[_3]',
281: "gocmd('/adm/grades','gradingmenu')",
282: 'Modify user grades for this assessment resource');
283: }
284: }
285: if (&Apache::lonnet::allowed('opa',$crs)) {
286: $hwkadd.=&switch('','',7,3,'pparm.gif','problem[_2]','parms[_2]',
287: "gocmd('/adm/parmset','set')",
288: 'Modify deadlines, etc, for this resource');
289: }
290: # -- End Homework
291: ###
292: ### Determine whether or not to display the 'cstr' button for this
293: ### resource
294: ###
295: my $editbutton = '';
296: if ($ENV{'user.author'}) {
297: if ($ENV{'request.role'}=~/^(ca|au)/) {
298: # Set defaults for authors
299: my ($top,$bottom) = ('con-','struct');
300: my $action = "go('/priv/".$ENV{'user.name'}."');";
301: my $cadom = $ENV{'request.role.domain'};
302: my $caname = $ENV{'user.name'};
303: my $desc = "Enter my resource construction space";
304: # Set defaults for co-authors
305: if ($ENV{'request.role'} =~ /^ca/) {
306: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
307: ($top,$bottom) = ('co con-','struct');
308: $action = "go('/priv/".$caname."');";
309: $desc = "Enter construction space as co-author";
310: }
311: # Check that we are on the correct machine
312: my $home = &Apache::lonnet::homeserver($caname,$cadom);
313: my $allowed=0;
314: my @ids=&Apache::lonnet::current_machine_ids();
315: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
316: if (!$allowed) {
317: $editbutton=&switch('','',6,1,$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\/$2/;
329: # Check that the user has permission to edit this resource
330: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
331: if (defined($cfudom)) {
332: my $home=&Apache::lonnet::homeserver($cfuname,$cfudom);
333: my $allowed=0;
334: my @ids=&Apache::lonnet::current_machine_ids();
335: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
336: if ($allowed) {
337: $cfile=$file;
338: }
339: }
340: }
341: # Finally, turn the button on or off
342: &Apache::lonnet::logthis("cfile is $cfile");
343: if ($cfile) {
344: $editbutton=&switch
345: ('','',6,1,'cstr.gif','edit[_1]','resource[_2]',
346: "go('".$cfile."');","Edit this resource");
347: } elsif ($editbutton eq '') {
348: $editbutton=&clear(6,1);
349: }
350: }
351: ###
352: ###
353: # Prepare the rest of the buttons
354: my $menuitems=(<<ENDMENUITEMS);
355: c&3&1
356: s&2&1&back.gif&backward[_1]&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
357: s&2&3&forw.gif&forward[_1]&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
358: c&6&3
359: c&8&1
360: c&8&2
361: s&8&3&prt.gif&prepare[_1]&printout[_1]&gopost('/adm/printout',currentURL)&Prepare a printable document
362: s&9&1&sbkm.gif&set[_1]&bookmark[_2]&set_bookmark()&Set a bookmark for this resource&2
363: s&9&3&anot.gif&anno-[_1]&tations[_1]&annotate()&Make notes and annotations about this resource&2
364: ENDMENUITEMS
365: unless ($ENV{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
366: $menuitems.=(<<ENDREALRES);
367: s&6&3&catalog.gif&catalog[_1]&info[_1]&catalog_info()&Show catalog information
368: s&8&1&eval.gif&evaluate[_1]&this[_1]&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
369: s&8&2&fdbk.gif&feedback[_1]&discuss[_1]&gopost('/adm/feedback',currentURL,1)&Provide feedback messages or contribute to the course discussion about this resource
370: ENDREALRES
371: }
372: my $buttons='';
373: foreach (split(/\n/,$menuitems)) {
374: my ($command,@rest)=split(/\&/,$_);
375: if ($command eq 's') {
376: $buttons.=&switch('','',@rest);
377: } else {
378: $buttons.=&clear(@rest);
379: }
380: }
381: if ($textual) {
382: # Registered, textual output
383: my $utility=&utilityfunctions();
384: my $form=&serverform();
385: my $inlinebuttons='';
386:
387: if ($ENV{'browser.interface'} eq 'textual') {
388: $inlinebuttons=
389: join('',map { (defined($_)?$_:'') } @inlineremote);
390: } else {
391: $inlinebuttons=(<<ENDINLINE);
392: <tr><td>$inlineremote[21]</td><td> </td><td>$inlineremote[23]</td></tr>
393: <tr><td>$inlineremote[61]</td><td>$inlineremote[62]</td><td>$inlineremote[63]</td></tr>
394: <tr><td>$inlineremote[71]</td><td>$inlineremote[72]</td><td>$inlineremote[73]</td></tr>
395: <tr><td>$inlineremote[81]</td><td>$inlineremote[82]</td><td>$inlineremote[83]</td></tr>
396: <tr><td>$inlineremote[91]</td><td>$inlineremote[92]</td><td>$inlineremote[93]</td></tr>
397: ENDINLINE
398: }
399: $result =(<<ENDREGTEXT);
400: <script>
401: // BEGIN LON-CAPA Internal
402: $utility
403: </script>
404: $timesync
405: $newmail
406: $tablestart
407: $inlinebuttons
408: $tableend
409: $form
410: <script>
411: // END LON-CAPA Internal
412: </script>
413:
414: ENDREGTEXT
415: # Registered, graphical output
416: } else {
417: my $requri=(split(/\?/,$ENV{'request.noversionuri'}))[0];
418: $requri=&Apache::lonnet::unescape($requri);
419: $result = (<<ENDREGTHIS);
420:
421: <script language="JavaScript">
422: // BEGIN LON-CAPA Internal
423: var swmenu=null;
424:
425: function LONCAPAreg() {
426: swmenu=$reopen;
427: swmenu.clearTimeout(swmenu.menucltim);
428: $timesync
429: $newmail
430: $buttons
431: swmenu.currentURL="$requri";
432: swmenu.reloadURL=swmenu.currentURL+window.location.search;
433: swmenu.currentSymb="$ENV{'request.symb'}";
434: swmenu.reloadSymb="$ENV{'request.symb'}";
435: swmenu.currentStale=0;
436: $hwkadd
437: $editbutton
438: }
439:
440: function LONCAPAstale() {
441: swmenu=$reopen
442: swmenu.currentStale=1;
443: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
444: swmenu.switchbutton
445: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
446: }
447: swmenu.clearbut(7,1);
448: swmenu.clearbut(7,2);
449: swmenu.clearbut(7,3);
450: swmenu.menucltim=swmenu.setTimeout(
451: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
452: 'clearbut(9,1);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
453: 2000);
454: }
455:
456: // END LON-CAPA Internal
457: </script>
458: ENDREGTHIS
459: }
460: # =============================================================================
461: } else {
462: # ========================================== This can or will not be registered
463: if ($textual) {
464: # Not registered, textual
465: $result= (<<ENDDONOTREGTEXT);
466: ENDDONOTREGTEXT
467: } else {
468: # Not registered, graphical
469: $result = (<<ENDDONOTREGTHIS);
470:
471: <script language="JavaScript">
472: // BEGIN LON-CAPA Internal
473: var swmenu=null;
474:
475: function LONCAPAreg() {
476: swmenu=$reopen
477: $timesync
478: swmenu.currentStale=1;
479: swmenu.clearbut(2,1);
480: swmenu.clearbut(2,3);
481: swmenu.clearbut(8,1);
482: swmenu.clearbut(8,2);
483: swmenu.clearbut(8,3);
484: if (swmenu.currentURL) {
485: swmenu.switchbutton
486: (3,1,'reload.gif','return','location','go(currentURL)');
487: } else {
488: swmenu.clearbut(3,1);
489: }
490: }
491:
492: function LONCAPAstale() {
493: }
494:
495: // END LON-CAPA Internal
496: </script>
497: ENDDONOTREGTHIS
498: }
499: # =============================================================================
500: }
501: return $result;
502: }
503:
504: sub loadevents() {
505: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
506: return 'LONCAPAreg();';
507: }
508:
509: sub unloadevents() {
510: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
511: return 'LONCAPAstale();';
512: }
513:
514: # ============================================================= Start up remote
515:
516: sub startupremote {
517: my ($lowerurl)=@_;
518: if (($ENV{'browser.interface'} eq 'textual') ||
519: ($ENV{'environment.remote'} eq 'off')) {
520: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
521: }
522: #
523: # The Remote actually gets launched!
524: #
525: my $configmenu=&rawconfig();
526: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
527:
528: return(<<ENDREMOTESTARTUP);
529: <script>
530:
531: function wheelswitch() {
532: if (window.status=='|') {
533: window.status='/';
534: } else {
535: if (window.status=='/') {
536: window.status='-';
537: } else {
538: if (window.status=='-') {
539: window.status='\\\\';
540: } else {
541: if (window.status=='\\\\') { window.status='|'; }
542: }
543: }
544: }
545: }
546:
547: // ---------------------------------------------------------- The wait function
548: var canceltim;
549: function wait() {
550: if ((menuloaded==1) || (tim==1)) {
551: window.status='Done.';
552: if (tim==0) {
553: clearTimeout(canceltim);
554: $configmenu
555: window.location='$lowerurl';
556: } else {
557: window.location='/adm/remote?action=collapse&url=$esclowerurl';
558: }
559: } else {
560: wheelswitch();
561: setTimeout('wait();',200);
562: }
563: }
564:
565: function main() {
566: canceltim=setTimeout('tim=1;',30000);
567: window.status='-';
568: wait();
569: }
570:
571: </script>
572: ENDREMOTESTARTUP
573: }
574:
575: sub setflags() {
576: return(<<ENDSETFLAGS);
577: <script>
578: menuloaded=0;
579: tim=0;
580: </script>
581: ENDSETFLAGS
582: }
583:
584: sub maincall() {
585: if (($ENV{'browser.interface'} eq 'textual') ||
586: ($ENV{'environment.remote'} eq 'off')) { return ''; }
587: return(<<ENDMAINCALL);
588: <script>
589: main();
590: </script>
591: ENDMAINCALL
592: }
593: # ================================================================= Reopen menu
594:
595: sub reopenmenu {
596: if (($ENV{'browser.interface'} eq 'textual') ||
597: ($ENV{'environment.remote'} eq 'off')) { return ''; }
598: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
599: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
600: return('window.open('.$nothing.',"'.$menuname.'","",false);');
601: }
602:
603: # =============================================================== Open the menu
604:
605: sub open {
606: my $returnval='';
607: if (($ENV{'browser.interface'} eq 'textual') ||
608: ($ENV{'environment.remote'} eq 'off')) { return ''; }
609: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
610: unless (shift eq 'unix') {
611: # resizing does not work on linux because of virtual desktop sizes
612: $returnval.=(<<ENDRESIZE);
613: if (window.screen) {
614: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
615: self.moveTo(190,15);
616: }
617: ENDRESIZE
618: }
619: $returnval.=(<<ENDOPEN);
620: window.status='Opening LON-CAPA Remote Control';
621: var menu=window.open("/res/adm/pages/menu.html","$menuname",
622: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
623: self.name='loncapaclient';
624: ENDOPEN
625: return '<script>'.$returnval.'</script>';
626: }
627:
628:
629: # ================================================================== Raw Config
630:
631: sub clear {
632: my ($row,$col)=@_;
633: unless (($ENV{'browser.interface'} eq 'textual') ||
634: ($ENV{'environment.remote'} eq 'off')) {
635: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
636: } else {
637: $inlineremote[10*$row+$col]='';
638: return '';
639: }
640: }
641:
642: # ============================================ Switch a button or create a link
643: # Switch acts on the javascript that is executed when a button is clicked.
644: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
645:
646: sub switch {
647: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
648: $act=~s/\$uname/$uname/g;
649: $act=~s/\$udom/$udom/g;
650: $top=&mt($top);
651: $bot=&mt($bot);
652: $desc=&mt($desc);
653: $img=&mt($img);
654: unless (($ENV{'browser.interface'} eq 'textual') ||
655: ($ENV{'environment.remote'} eq 'off')) {
656: # Remote
657: return "\n".
658: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
659: } elsif ($ENV{'browser.interface'} eq 'textual') {
660: # Accessibility
661: if ($nobreak==2) { return ''; }
662: my $text=$top.' '.$bot;
663: $text=~s/\s*\-\s*//gs;
664: if ($nobreak) {
665: $inlineremote[10*$row+$col]=
666: '<a href="javascript:'.$act.';">'.$text.'</a>';
667: } else {
668: $inlineremote[10*$row+$col]="\n<br />".
669: $desc.' <a href="javascript:'.$act.';">'.$text.'</a>';
670: }
671: } else {
672: # Inline Remote
673: if ($nobreak==2) { return ''; }
674: my $text=$top.' '.$bot;
675: $text=~s/\s*\-\s*//gs;
676:
677: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
678: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
679: my $pic=
680: '<img border="0" alt="'.$text.'" src="http://'.$ENV{'HTTP_HOST'}.
681: ':'.$lonhttpdPort.'/res/adm/pages/'.$img.'" align="'.
682: ($nobreak==3?'right':'left').'" />';
683: if (($ENV{'browser.interface'} eq 'textual') || ($ENV{'browser.interface'} eq 'faketextual')) {
684: # Accessibility
685: if ($nobreak==3) {
686: $inlineremote[10*$row+$col]="\n".
687: '<td width="40%" align="right"><font color="'.$font.'" size="+1">'.$text.
688: '</font></td><td width="10%" align="right" bgcolor="'.$tabbg.'">'.
689: '<a href="javascript:'.$act.';">'.$pic.'</a></td></tr>';
690: } elsif ($nobreak) {
691: $inlineremote[10*$row+$col]="\n<tr>".
692: '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
693: '<a href="javascript:'.$act.';">'.$pic.
694: '</a></td><td width="40%" align="left"><font color="'.$font.'" size="+1">'.$text.'</font></td>';
695: } else {
696: $inlineremote[10*$row+$col]="\n<tr>".
697: '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
698: '<a href="javascript:'.$act.';">'.$pic.
699: '</a></td><td colspan="3"><font color="'.$font.'">'.$desc.
700: '</font></td></tr>';
701: }
702: } else {
703: # Inline Menu
704: $inlineremote[10*$row+$col]=
705: '<a href="javascript:'.$act.';">'.$pic.
706: '</a><font color="'.$font.'" size="2">'.$desc.
707: '</font>';
708: }
709: }
710: return '';
711: }
712:
713: sub secondlevel {
714: my $output='';
715: my
716: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
717: if ($prt eq 'any') {
718: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
719: } elsif ($prt=~/^r(\w+)/) {
720: if ($rol eq $1) {
721: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
722: }
723: }
724: return $output;
725: }
726:
727: sub openmenu {
728: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
729: if (($ENV{'browser.interface'} eq 'textual') ||
730: ($ENV{'environment.remote'} eq 'off')) { return ''; }
731: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
732: return "window.open(".$nothing.",'".$menuname."');";
733: }
734:
735: sub inlinemenu {
736: @inlineremote=();
737: undef @inlineremote;
738: &rawconfig(1);
739: return join('',map { (defined($_)?$_:'') } @inlineremote);
740: }
741:
742: sub rawconfig {
743: my $textualoverride=shift;
744: my $output='';
745: unless (($ENV{'browser.interface'} eq 'textual') ||
746: ($ENV{'environment.remote'} eq 'off')) {
747: $output.=
748: "window.status='Opening Remote Control';var swmenu=".&openmenu().
749: "\nwindow.status='Configuring Remote Control ';";
750: } else {
751: unless ($textualoverride) { return ''; }
752: }
753: my $uname=$ENV{'user.name'};
754: my $udom=$ENV{'user.domain'};
755: my $adv=$ENV{'user.adv'};
756: my $author=$ENV{'user.author'};
757: my $crs='';
758: if ($ENV{'request.course.id'}) {
759: $crs='/'.$ENV{'request.course.id'};
760: if ($ENV{'request.course.sec'}) {
761: $crs.='_'.$ENV{'request.course.sec'};
762: }
763: $crs=~s/\_/\//g;
764: }
765: my $pub=($ENV{'request.state'} eq 'published');
766: my $con=($ENV{'request.state'} eq 'construct');
767: my $rol=$ENV{'request.role'};
768: my $requested_domain = $ENV{'request.role.domain'};
769: foreach (@desklines) {
770: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
771: $prt=~s/\$uname/$uname/g;
772: $prt=~s/\$udom/$udom/g;
773: $prt=~s/\$crs/$crs/g;
774: $prt=~s/\$requested_domain/$requested_domain/g;
775: if ($pro eq 'clear') {
776: $output.=&clear($row,$col);
777: } elsif ($pro eq 'any') {
778: $output.=&secondlevel(
779: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
780: } elsif ($pro eq 'smp') {
781: unless ($adv) {
782: $output.=&secondlevel(
783: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
784: }
785: } elsif ($pro eq 'adv') {
786: if ($adv) {
787: $output.=&secondlevel(
788: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
789: }
790: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
791: if (&Apache::lonnet::allowed($1,$prt)) {
792: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
793: }
794: } elsif ($pro eq 'course') {
795: if ($ENV{'request.course.fn'}) {
796: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
797: }
798: } elsif ($pro =~ /^course_(.*)$/) {
799: # Check for permissions inside of a course
800: if (($ENV{'request.course.id'}) &&
801: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
802: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
803: )) {
804: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
805: }
806: } elsif ($pro eq 'author') {
807: if ($author) {
808: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
809: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
810: # Check that we are on the correct machine
811: my $cadom=$requested_domain;
812: my $caname=$ENV{'user.name'};
813: if ($prt eq 'rca') {
814: ($cadom,$caname)=
815: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
816: }
817: $act =~ s/\$caname/$caname/g;
818: my $home = &Apache::lonnet::homeserver($caname,$cadom);
819: my $allowed=0;
820: my @ids=&Apache::lonnet::current_machine_ids();
821: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
822: if ($allowed) {
823: $output.=switch($caname,$cadom,
824: $row,$col,$img,$top,$bot,$act,$desc);
825: }
826: }
827: }
828: }
829: }
830: unless (($ENV{'browser.interface'} eq 'textual') ||
831: ($ENV{'environment.remote'} eq 'off')) {
832: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
833: }
834: return $output;
835: }
836:
837: # ======================================================================= Close
838:
839: sub close {
840: if (($ENV{'browser.interface'} eq 'textual') ||
841: ($ENV{'environment.remote'} eq 'off')) { return ''; }
842: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
843: return(<<ENDCLOSE);
844: <script>
845: window.status='Accessing Remote Control';
846: menu=window.open("/adm/rat/empty.html","$menuname",
847: "height=350,width=150,scrollbars=no,menubar=no");
848: window.status='Disabling Remote Control';
849: menu.active=0;
850: menu.autologout=0;
851: window.status='Closing Remote Control';
852: menu.close();
853: window.status='Done.';
854: </script>
855: ENDCLOSE
856: }
857:
858: # ====================================================================== Footer
859:
860: sub footer {
861:
862: }
863:
864: sub utilityfunctions {
865: unless (($ENV{'browser.interface'} eq 'textual') ||
866: ($ENV{'environment.remote'} eq 'off')) { return ''; }
867: my $currenturl=$ENV{'request.noversionuri'};
868: my $currentsymb=$ENV{'request.symb'};
869: return (<<ENDUTILITY)
870:
871: var currentURL="$currenturl";
872: var reloadURL="$currenturl";
873: var currentSymb="$currentsymb";
874:
875: function go(url) {
876: if (url!='' && url!= null) {
877: currentURL = null;
878: currentSymb= null;
879: window.location.href=url;
880: }
881: }
882:
883: function gopost(url,postdata) {
884: if (url!='') {
885: this.document.server.action=url;
886: this.document.server.postdata.value=postdata;
887: this.document.server.command.value='';
888: this.document.server.url.value='';
889: this.document.server.symb.value='';
890: this.document.server.submit();
891: }
892: }
893:
894: function gocmd(url,cmd) {
895: if (url!='') {
896: this.document.server.action=url;
897: this.document.server.postdata.value='';
898: this.document.server.command.value=cmd;
899: this.document.server.url.value=currentURL;
900: this.document.server.symb.value=currentSymb;
901: this.document.server.submit();
902: }
903: }
904:
905: function catalog_info() {
906: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
907: }
908:
909: function chat_win() {
910: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizable=yes,location=no,menubar=no,toolbar=no');
911: }
912: ENDUTILITY
913: }
914:
915: sub serverform {
916: return(<<ENDSERVERFORM);
917:
918: <form name="server" action="/adm/logout" method="post" target="_top">
919: <input type="hidden" name="postdata" value="none" />
920: <input type="hidden" name="command" value="none" />
921: <input type="hidden" name="url" value="none" />
922: <input type="hidden" name="symb" value="none" />
923: </form>
924: ENDSERVERFORM
925: }
926: # ================================================ Handler when called directly
927:
928:
929: sub handler {
930: my $r = shift;
931: &Apache::loncommon::content_type($r,'text/html');
932: $r->send_http_header;
933: return OK if $r->header_only;
934:
935: my $form=&serverform();
936: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
937: my $function='student';
938: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
939: $function='coordinator';
940: }
941: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
942: $function='admin';
943: }
944: if (($ENV{'request.role'}=~/^(au|ca)/) ||
945: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
946: $function='author';
947: }
948: my $domain=&Apache::loncommon::determinedomain();
949: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
950: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
951: $font=&Apache::loncommon::designparm($function.'.font',$domain);
952: # ---- Print the screen, pretent to be in text mode to generate text-based menu
953: unless ($ENV{'browser.interface'} eq 'textual') {
954: $ENV{'browser.interface'}='faketextual';
955: $ENV{'environment.remote'}='off';
956: }
957: my $utility=&utilityfunctions();
958: $r->print(<<ENDHEADER);
959: <html><head>
960: <title>LON-CAPA Main Menu</title>
961: <script>
962: $utility
963: </script>
964: </head>
965: $bodytag
966: ENDHEADER
967: $r->print('<table>'.&inlinemenu().'</table>'.$form);
968: $r->print('</body></html>');
969: return OK;
970: }
971:
972: # ================================================================ Main Program
973:
974: BEGIN {
975: if (! defined($readdesk)) {
976: {
977: my $tabfile = $Apache::lonnet::perlvar{'lonTabDir'}.'/mydesk.tab';
978: if ( CORE::open( my $config,"<$tabfile") ) {
979: while (my $configline=<$config>) {
980: $configline=(split(/\#/,$configline))[0];
981: $configline=~s/^\s+//;
982: chomp($configline);
983: if ($configline) {
984: $desklines[$#desklines+1]=$configline;
985: }
986: }
987: CORE::close($config);
988: }
989: }
990: $readdesk='done';
991: }
992: }
993:
994: 1;
995: __END__
996:
997:
998:
999:
1000:
1001:
1002:
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