1: # The LearningOnline Network with CAPA
2: # Routines to control the menu
3: #
4: # $Id: lonmenu.pm,v 1.113 2004/08/13 20:12:11 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 $registration=shift;
71:
72: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
73: ['inhibitmenu']);
74: if ($ENV{'form.inhibitmenu'} eq 'yes') { return ''; }
75:
76: my $navmaps='';
77: my $reloadlink='';
78: my $escurl=&Apache::lonnet::escape($ENV{'request.noversionuri'});
79: my $escsymb=&Apache::lonnet::escape($ENV{'request.symb'});
80: if ($ENV{'browser.interface'} eq 'textual') {
81: # Textual display only
82: my %lt=&initlittle();
83: $pgbg='#FFFFFF';
84: $tabbg='#FFFFFF';
85: $font='#000000';
86: if ($ENV{'request.course.id'}) {
87: $navmaps=(<<ENDNAV);
88: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top">$lt{'nav'}</a>
89: ENDNAV
90: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
91: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
92: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
93: my $escreload=&Apache::lonnet::escape('return:');
94: $reloadlink=(<<ENDRELOAD);
95: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a>
96: ENDRELOAD
97: }
98: }
99: my $output=(<<ENDMAINMENU);
100: <script>
101: // BEGIN LON-CAPA Internal
102: </script>
103: <a href="/adm/menu" target="_top">$lt{'main'}</a>
104: $reloadlink $navmaps<br />
105: <script>
106: // END LON-CAPA Internal
107: </script>
108: ENDMAINMENU
109: if ($registration) { $output.=&innerregister($forcereg,$target); }
110: return $output."<hr />";
111: } elsif ($ENV{'environment.remote'} eq 'off') {
112: # Remote Control is switched off
113: # figure out colors
114: my %lt=&initlittle();
115: my $function='student';
116: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
117: $function='coordinator';
118: }
119: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
120: $function='admin';
121: }
122: if (($ENV{'request.role'}=~/^(au|ca)/) ||
123: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
124: $function='author';
125: }
126: my $domain=&Apache::loncommon::determinedomain();
127: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
128: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
129: $font=&Apache::loncommon::designparm($function.'.font',$domain);
130: my $link=&Apache::loncommon::designparm($function.'.link',$domain);
131: my $alink=&Apache::loncommon::designparm($function.'.alink',$domain);
132: my $vlink=&Apache::loncommon::designparm($function.'.vlink',$domain);
133: my $sidebg=&Apache::loncommon::designparm($function.'.sidebg',$domain);
134: # Do we have a NAV link?
135: if ($ENV{'request.course.id'}) {
136: $navmaps=(<<ENDNAVREM);
137: <td bgcolor="$tabbg">
138: <a href="/adm/navmaps?postdata=$escurl&postsymb=$escsymb" target="_top"><font color="$font">$lt{'nav'}</font></a></td>
139: ENDNAVREM
140: if (($ENV{'request.noversionuri'}=~/^\/adm\//) &&
141: ($ENV{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
142: ($ENV{'request.noversionuri'}!~/^\/adm\/.*\/(smppg|bulletinboard|aboutme)(\?|$)/)) {
143: my $escreload=&Apache::lonnet::escape('return:');
144: $reloadlink=(<<ENDRELOAD);
145: <td bgcolor="$tabbg">
146: <a href="/adm/flip?postdata=$escreload" target="_top"><font color="$font">$lt{'ret'}</font></a></td>
147: ENDRELOAD
148: }
149: }
150: my $reg='';
151: if ($registration) {
152: $reg=&innerregister($forcereg,$target);
153: }
154: return (<<ENDINLINEMENU);
155: <script>
156: // BEGIN LON-CAPA Internal
157: </script>
158: <font face="Arial,Helvetica,sans-serif"><table bgcolor="$pgbg" width="100%" border="0" cellpadding="1" cellspacing="1">
159: <tr>
160: <td bgcolor="$tabbg">
161: <a href="/adm/menu" target="_top"><font color="$font">$lt{'main'}</font></a>
162: </td>
163: $reloadlink
164: $navmaps
165: <td bgcolor="$tabbg">
166: <a href="/adm/remote?action=launch&url=$escurl" target="_top">
167: <font color="$font">$lt{'launch'}</font></a></td>
168: <td bgcolor="$tabbg">
169: <img align="right" src="/adm/lonIcons/minilogo.gif" />
170: <b>LON-CAPA</b></td>
171: </tr>
172: </table>
173: </font>
174: <script>
175: // END LON-CAPA Internal
176: </script>
177: $reg
178: ENDINLINEMENU
179: } else {
180: return '';
181: }
182: }
183:
184: # ====================================== This gets called in the header section
185:
186: sub registerurl {
187: my $forcereg=shift;
188: my $target = shift;
189: my $result = '';
190: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
191: my $force_title='';
192: if ($ENV{'request.state'} eq 'construct') {
193: $force_title=&Apache::lonxml::display_title();
194: }
195: if ($target eq 'edit') {
196: $result .="<script type=\"text/javascript\">\n".
197: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
198: &Apache::loncommon::browser_and_searcher_javascript().
199: "\n</script>\n";
200: }
201: if (($ENV{'browser.interface'} eq 'textual') ||
202: ($ENV{'environment.remote'} eq 'off') ||
203: ((($ENV{'request.publicaccess'}) ||
204: (!&Apache::lonnet::is_on_map(
205: &Apache::lonnet::unescape($ENV{'request.noversionuri'})))) &&
206: (!$forcereg))) {
207: return $result.
208: '<script type="text/javascript">function LONCAPAreg(){;} function LONCAPAstale(){}</script>'.$force_title;
209: }
210: # Graphical display after login only
211: if ($Apache::lonxml::registered && !$forcereg) { return ''; }
212: if ($target ne 'edit') {
213: $result.=&innerregister($forcereg,$target);
214: }
215: return $result.$force_title;
216: }
217:
218: # =========== This gets called in order to register a URL, both with the Remote
219: # =========== and in the body of the document
220:
221: sub innerregister {
222: my $forcereg=shift;
223: my $target = shift;
224: my $result = '';
225: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
226:
227: $Apache::lonxml::registered=1;
228:
229: my $textinter=($ENV{'browser.interface'} eq 'textual');
230: my $noremote=($ENV{'environment.remote'} eq 'off');
231:
232: my $textual=($textinter || $noremote);
233:
234: @inlineremote=();
235: undef @inlineremote;
236:
237: my $reopen=&Apache::lonmenu::reopenmenu();
238:
239: my $newmail='';
240: if ($noremote) {
241: $newmail='<font face="Arial,Helvetica,sans-serif"><table bgcolor="'.$pgbg.'" border="0" cellspacing="1" cellpadding="1" width="100%"><tr><td bgcolor="'.$tabbg.'">';
242: }
243: if (($textual) && ($ENV{'request.symb'}) && ($ENV{'request.course.id'})) {
244: my ($mapurl,$rid,$resurl)=&Apache::lonnet::decode_symb($ENV{'request.symb'});
245: $newmail.=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
246: my $maptitle=&Apache::lonnet::gettitle($mapurl);
247: my $restitle=&Apache::lonnet::gettitle($resurl);
248: if ($maptitle) {
249: $newmail.=', '.$maptitle;
250: }
251: if ($restitle) {
252: $newmail.=': '.$restitle;
253: }
254: $newmail.=' ';
255: }
256: if (&Apache::lonmsg::newmail()) {
257: $newmail=($textual?
258: '<b><a href="/adm/communicate" target="_top">You have new messages</a></b><br />':
259: 'swmenu.setstatus("you have","messages");');
260: }
261: if ($noremote) {
262: $newmail.='</td></tr></table></font>';
263: }
264: my $timesync=($textual?'':'swmenu.syncclock(1000*'.time.');');
265: 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 />':'');
266: my $tableend=($noremote?'</table></font>':'').($textinter?'<a name="content" />':'');
267: # =============================================================================
268: # ============================ This is for URLs that actually can be registered
269: if (($ENV{'request.noversionuri'}!~/^\/(res\/)*adm\//) || ($forcereg)) {
270: # -- This applies to homework problems for users with grading privileges
271: my $crs='/'.$ENV{'request.course.id'};
272: if ($ENV{'request.course.sec'}) {
273: $crs.='_'.$ENV{'request.course.sec'};
274: }
275: $crs=~s/\_/\//g;
276:
277: my $hwkadd='';
278: if ($ENV{'request.filename'}=~/\.(problem|exam|quiz|assess|survey|form)$/) {
279: if (&Apache::lonnet::allowed('vgr',$crs)) {
280: $hwkadd.=&switch('','',7,1,'subm.gif','view sub-[_1]','missions[_1]',
281: "gocmd('/adm/grades','submission')",
282: 'View user submissions for this assessment resource');
283: }
284: if (&Apache::lonnet::allowed('mgr',$crs)) {
285: $hwkadd.=&switch('','',7,2,'pgrd.gif','problem[_1]','grades[_3]',
286: "gocmd('/adm/grades','gradingmenu')",
287: 'Modify user grades for this assessment resource');
288: }
289: }
290: if (&Apache::lonnet::allowed('opa',$crs)) {
291: $hwkadd.=&switch('','',7,3,'pparm.gif','problem[_2]','parms[_2]',
292: "gocmd('/adm/parmset','set')",
293: 'Modify deadlines, etc, for this resource');
294: }
295: # -- End Homework
296: ###
297: ### Determine whether or not to display the 'cstr' button for this
298: ### resource
299: ###
300: my $editbutton = '';
301: if ($ENV{'user.author'}) {
302: if ($ENV{'request.role'}=~/^(ca|au)/) {
303: # Set defaults for authors
304: my ($top,$bottom) = ('con-','struct');
305: my $action = "go('/priv/".$ENV{'user.name'}."');";
306: my $cadom = $ENV{'request.role.domain'};
307: my $caname = $ENV{'user.name'};
308: my $desc = "Enter my resource construction space";
309: # Set defaults for co-authors
310: if ($ENV{'request.role'} =~ /^ca/) {
311: ($cadom,$caname)=($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
312: ($top,$bottom) = ('co con-','struct');
313: $action = "go('/priv/".$caname."');";
314: $desc = "Enter construction space as co-author";
315: }
316: # Check that we are on the correct machine
317: my $home = &Apache::lonnet::homeserver($caname,$cadom);
318: my $allowed=0;
319: my @ids=&Apache::lonnet::current_machine_ids();
320: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
321: if (!$allowed) {
322: $editbutton=&switch('','',6,1,$top,,$bottom,$action,$desc);
323: }
324: }
325: ##
326: ## Determine if user can edit url.
327: ##
328: my $cfile='';
329: my $cfuname='';
330: my $cfudom='';
331: if ($ENV{'request.filename'}) {
332: my $file=&Apache::lonnet::declutter($ENV{'request.filename'});
333: $file=~s/^(\w+)\/(\w+)/\/priv\/$2/;
334: # Check that the user has permission to edit this resource
335: ($cfuname,$cfudom)=&Apache::loncacc::constructaccess($file,$1);
336: if (defined($cfudom)) {
337: my $home=&Apache::lonnet::homeserver($cfuname,$cfudom);
338: my $allowed=0;
339: my @ids=&Apache::lonnet::current_machine_ids();
340: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
341: if ($allowed) {
342: $cfile=$file;
343: }
344: }
345: }
346: # Finally, turn the button on or off
347: if ($cfile) {
348: $editbutton=&switch
349: ('','',6,1,'cstr.gif','edit[_1]','resource[_2]',
350: "go('".$cfile."');","Edit this resource");
351: } elsif ($editbutton eq '') {
352: $editbutton=&clear(6,1);
353: }
354: }
355: ###
356: ###
357: # Prepare the rest of the buttons
358: my $menuitems=(<<ENDMENUITEMS);
359: c&3&1
360: s&2&1&back.gif&backward[_1]&&gopost('/adm/flip','back:'+currentURL)&Go to the previous resource in the course sequence&1
361: s&2&3&forw.gif&forward[_1]&&gopost('/adm/flip','forward:'+currentURL)&Go to the next resource in the course sequence&3
362: c&6&3
363: c&8&1
364: c&8&2
365: s&8&3&prt.gif&prepare[_1]&printout[_1]&gopost('/adm/printout',currentURL)&Prepare a printable document
366: s&9&1&sbkm.gif&set[_1]&bookmark[_2]&set_bookmark()&Set a bookmark for this resource&2
367: s&9&3&anot.gif&anno-[_1]&tations[_1]&annotate()&Make notes and annotations about this resource&2
368: ENDMENUITEMS
369: unless ($ENV{'request.noversionuri'}=~/\/(bulletinboard|smppg|navmaps|syllabus|aboutme)(\?|$)/) {
370: $menuitems.=(<<ENDREALRES);
371: s&6&3&catalog.gif&catalog[_1]&info[_1]&catalog_info()&Show catalog information
372: s&8&1&eval.gif&evaluate[_1]&this[_1]&gopost('/adm/evaluate',currentURL,1)&Provide my evaluation of this resource
373: 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
374: ENDREALRES
375: }
376: my $buttons='';
377: foreach (split(/\n/,$menuitems)) {
378: my ($command,@rest)=split(/\&/,$_);
379: if ($command eq 's') {
380: $buttons.=&switch('','',@rest);
381: } else {
382: $buttons.=&clear(@rest);
383: }
384: }
385: if ($textual) {
386: # Registered, textual output
387: my $utility=&utilityfunctions();
388: my $form=&serverform();
389: my $inlinebuttons='';
390:
391: if ($ENV{'browser.interface'} eq 'textual') {
392: $inlinebuttons=
393: join('',map { (defined($_)?$_:'') } @inlineremote);
394: } else {
395: $inlinebuttons=(<<ENDINLINE);
396: <tr><td>$inlineremote[21]</td><td> </td><td>$inlineremote[23]</td></tr>
397: <tr><td>$inlineremote[61]</td><td>$inlineremote[62]</td><td>$inlineremote[63]</td></tr>
398: <tr><td>$inlineremote[71]</td><td>$inlineremote[72]</td><td>$inlineremote[73]</td></tr>
399: <tr><td>$inlineremote[81]</td><td>$inlineremote[82]</td><td>$inlineremote[83]</td></tr>
400: <tr><td>$inlineremote[91]</td><td>$inlineremote[92]</td><td>$inlineremote[93]</td></tr>
401: ENDINLINE
402: }
403: $result =(<<ENDREGTEXT);
404: <script>
405: // BEGIN LON-CAPA Internal
406: $utility
407: </script>
408: $timesync
409: $newmail
410: $tablestart
411: $inlinebuttons
412: $tableend
413: $form
414: <script>
415: // END LON-CAPA Internal
416: </script>
417:
418: ENDREGTEXT
419: # Registered, graphical output
420: } else {
421: my $requri=(split(/\?/,$ENV{'request.noversionuri'}))[0];
422: $requri=&Apache::lonnet::unescape($requri);
423: my $navstatus=&get_nav_status();
424: $result = (<<ENDREGTHIS);
425:
426: <script language="JavaScript">
427: // BEGIN LON-CAPA Internal
428: var swmenu=null;
429:
430: function LONCAPAreg() {
431: swmenu=$reopen;
432: swmenu.clearTimeout(swmenu.menucltim);
433: $timesync
434: $newmail
435: $buttons
436: swmenu.currentURL="$requri";
437: swmenu.reloadURL=swmenu.currentURL+window.location.search;
438: swmenu.currentSymb="$ENV{'request.symb'}";
439: swmenu.reloadSymb="$ENV{'request.symb'}";
440: swmenu.currentStale=0;
441: $navstatus
442: $hwkadd
443: $editbutton
444: }
445:
446: function LONCAPAstale() {
447: swmenu=$reopen
448: swmenu.currentStale=1;
449: if (swmenu.reloadURL!='' && swmenu.reloadURL!= null) {
450: swmenu.switchbutton
451: (3,1,'reload.gif','return','location','go(reloadURL)','Return to the last known location in the course sequence');
452: }
453: swmenu.clearbut(7,1);
454: swmenu.clearbut(7,2);
455: swmenu.clearbut(7,3);
456: swmenu.menucltim=swmenu.setTimeout(
457: 'clearbut(2,1);clearbut(2,3);clearbut(8,1);clearbut(8,2);clearbut(8,3);'+
458: 'clearbut(9,1);clearbut(9,3);clearbut(6,3);clearbut(6,1)',
459: 2000);
460: }
461:
462: // END LON-CAPA Internal
463: </script>
464: ENDREGTHIS
465: }
466: # =============================================================================
467: } else {
468: # ========================================== This can or will not be registered
469: if ($textual) {
470: # Not registered, textual
471: $result= (<<ENDDONOTREGTEXT);
472: ENDDONOTREGTEXT
473: } else {
474: # Not registered, graphical
475: $result = (<<ENDDONOTREGTHIS);
476:
477: <script language="JavaScript">
478: // BEGIN LON-CAPA Internal
479: var swmenu=null;
480:
481: function LONCAPAreg() {
482: swmenu=$reopen
483: $timesync
484: swmenu.currentStale=1;
485: swmenu.clearbut(2,1);
486: swmenu.clearbut(2,3);
487: swmenu.clearbut(8,1);
488: swmenu.clearbut(8,2);
489: swmenu.clearbut(8,3);
490: if (swmenu.currentURL) {
491: swmenu.switchbutton
492: (3,1,'reload.gif','return','location','go(currentURL)');
493: } else {
494: swmenu.clearbut(3,1);
495: }
496: }
497:
498: function LONCAPAstale() {
499: }
500:
501: // END LON-CAPA Internal
502: </script>
503: ENDDONOTREGTHIS
504: }
505: # =============================================================================
506: }
507: return $result;
508: }
509:
510: sub loadevents() {
511: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
512: return 'LONCAPAreg();';
513: }
514:
515: sub unloadevents() {
516: if ($ENV{'request.noversionuri'} eq '/res/adm/pages/menu.html') { return ''; }
517: return 'LONCAPAstale();';
518: }
519:
520: # ============================================================= Start up remote
521:
522: sub startupremote {
523: my ($lowerurl)=@_;
524: if (($ENV{'browser.interface'} eq 'textual') ||
525: ($ENV{'environment.remote'} eq 'off')) {
526: return ('<meta HTTP-EQUIV="Refresh" CONTENT="0.5; url='.$lowerurl.'" />');
527: }
528: #
529: # The Remote actually gets launched!
530: #
531: my $configmenu=&rawconfig();
532: my $esclowerurl=&Apache::lonnet::escape($lowerurl);
533:
534: return(<<ENDREMOTESTARTUP);
535: <script>
536:
537: function wheelswitch() {
538: if (window.status=='|') {
539: window.status='/';
540: } else {
541: if (window.status=='/') {
542: window.status='-';
543: } else {
544: if (window.status=='-') {
545: window.status='\\\\';
546: } else {
547: if (window.status=='\\\\') { window.status='|'; }
548: }
549: }
550: }
551: }
552:
553: // ---------------------------------------------------------- The wait function
554: var canceltim;
555: function wait() {
556: if ((menuloaded==1) || (tim==1)) {
557: window.status='Done.';
558: if (tim==0) {
559: clearTimeout(canceltim);
560: $configmenu
561: window.location='$lowerurl';
562: } else {
563: window.location='/adm/remote?action=collapse&url=$esclowerurl';
564: }
565: } else {
566: wheelswitch();
567: setTimeout('wait();',200);
568: }
569: }
570:
571: function main() {
572: canceltim=setTimeout('tim=1;',30000);
573: window.status='-';
574: wait();
575: }
576:
577: </script>
578: ENDREMOTESTARTUP
579: }
580:
581: sub setflags() {
582: return(<<ENDSETFLAGS);
583: <script>
584: menuloaded=0;
585: tim=0;
586: </script>
587: ENDSETFLAGS
588: }
589:
590: sub maincall() {
591: if (($ENV{'browser.interface'} eq 'textual') ||
592: ($ENV{'environment.remote'} eq 'off')) { return ''; }
593: return(<<ENDMAINCALL);
594: <script>
595: main();
596: </script>
597: ENDMAINCALL
598: }
599: # ================================================================= Reopen menu
600:
601: sub reopenmenu {
602: if (($ENV{'browser.interface'} eq 'textual') ||
603: ($ENV{'environment.remote'} eq 'off')) { return ''; }
604: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
605: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
606: return('window.open('.$nothing.',"'.$menuname.'","",false);');
607: }
608:
609: # =============================================================== Open the menu
610:
611: sub open {
612: my $returnval='';
613: if (($ENV{'browser.interface'} eq 'textual') ||
614: ($ENV{'environment.remote'} eq 'off')) {
615: return '<script type="text/javascript">self.name="loncapaclient";</script>';
616: }
617: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
618: unless (shift eq 'unix') {
619: # resizing does not work on linux because of virtual desktop sizes
620: $returnval.=(<<ENDRESIZE);
621: if (window.screen) {
622: self.resizeTo(screen.availWidth-215,screen.availHeight-55);
623: self.moveTo(190,15);
624: }
625: ENDRESIZE
626: }
627: $returnval.=(<<ENDOPEN);
628: window.status='Opening LON-CAPA Remote Control';
629: var menu=window.open("/res/adm/pages/menu.html","$menuname",
630: "height=350,width=150,scrollbars=no,menubar=no,top=5,left=5,screenX=5,screenY=5");
631: self.name='loncapaclient';
632: ENDOPEN
633: return '<script>'.$returnval.'</script>';
634: }
635:
636:
637: # ================================================================== Raw Config
638:
639: sub clear {
640: my ($row,$col)=@_;
641: unless (($ENV{'browser.interface'} eq 'textual') ||
642: ($ENV{'environment.remote'} eq 'off')) {
643: return "\n".qq(window.status+='.';swmenu.clearbut($row,$col););
644: } else {
645: $inlineremote[10*$row+$col]='';
646: return '';
647: }
648: }
649:
650: # ============================================ Switch a button or create a link
651: # Switch acts on the javascript that is executed when a button is clicked.
652: # The javascript is usually similar to "go('/adm/roles')" or "cstrgo(..)".
653:
654: sub switch {
655: my ($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc,$nobreak)=@_;
656: $act=~s/\$uname/$uname/g;
657: $act=~s/\$udom/$udom/g;
658: $top=&mt($top);
659: $bot=&mt($bot);
660: $desc=&mt($desc);
661: $img=&mt($img);
662: unless (($ENV{'browser.interface'} eq 'textual') ||
663: ($ENV{'environment.remote'} eq 'off')) {
664: # Remote
665: return "\n".
666: qq(window.status+='.';swmenu.switchbutton($row,$col,"$img","$top","$bot","$act","$desc"););
667: } elsif ($ENV{'browser.interface'} eq 'textual') {
668: # Accessibility
669: if ($nobreak==2) { return ''; }
670: my $text=$top.' '.$bot;
671: $text=~s/\s*\-\s*//gs;
672: if ($nobreak) {
673: $inlineremote[10*$row+$col]=
674: '<a href="javascript:'.$act.';">'.$text.'</a>';
675: } else {
676: $inlineremote[10*$row+$col]="\n<br />".
677: $desc.' <a href="javascript:'.$act.';">'.$text.'</a>';
678: }
679: } else {
680: # Inline Remote
681: if ($nobreak==2) { return ''; }
682: my $text=$top.' '.$bot;
683: $text=~s/\s*\-\s*//gs;
684:
685: my $lonhttpdPort=$Apache::lonnet::perlvar{'lonhttpdPort'};
686: if (!defined($lonhttpdPort)) { $lonhttpdPort='8080'; }
687: my $pic=
688: '<img border="0" alt="'.$text.'" src="http://'.$ENV{'HTTP_HOST'}.
689: ':'.$lonhttpdPort.'/res/adm/pages/'.$img.'" align="'.
690: ($nobreak==3?'right':'left').'" />';
691: if (($ENV{'browser.interface'} eq 'textual') || ($ENV{'browser.interface'} eq 'faketextual')) {
692: # Accessibility
693: if ($nobreak==3) {
694: $inlineremote[10*$row+$col]="\n".
695: '<td width="40%" align="right"><font color="'.$font.'" size="+1">'.$text.
696: '</font></td><td width="10%" align="right" bgcolor="'.$tabbg.'">'.
697: '<a href="javascript:'.$act.';">'.$pic.'</a></td></tr>';
698: } elsif ($nobreak) {
699: $inlineremote[10*$row+$col]="\n<tr>".
700: '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
701: '<a href="javascript:'.$act.';">'.$pic.
702: '</a></td><td width="40%" align="left"><font color="'.$font.'" size="+1">'.$text.'</font></td>';
703: } else {
704: $inlineremote[10*$row+$col]="\n<tr>".
705: '<td width="10%" align="left" bgcolor="'.$tabbg.'">'.
706: '<a href="javascript:'.$act.';">'.$pic.
707: '</a></td><td colspan="3"><font color="'.$font.'">'.$desc.
708: '</font></td></tr>';
709: }
710: } else {
711: # Inline Menu
712: $inlineremote[10*$row+$col]=
713: '<a href="javascript:'.$act.';">'.$pic.
714: '</a><font color="'.$font.'" size="2">'.$desc.
715: '</font>';
716: }
717: }
718: return '';
719: }
720:
721: sub secondlevel {
722: my $output='';
723: my
724: ($uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc)=@_;
725: if ($prt eq 'any') {
726: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
727: } elsif ($prt=~/^r(\w+)/) {
728: if ($rol eq $1) {
729: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
730: }
731: }
732: return $output;
733: }
734:
735: sub openmenu {
736: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
737: if (($ENV{'browser.interface'} eq 'textual') ||
738: ($ENV{'environment.remote'} eq 'off')) { return ''; }
739: my $nothing = &Apache::lonhtmlcommon::javascript_nothing();
740: return "window.open(".$nothing.",'".$menuname."');";
741: }
742:
743: sub inlinemenu {
744: @inlineremote=();
745: undef @inlineremote;
746: &rawconfig(1);
747: return join('',map { (defined($_)?$_:'') } @inlineremote);
748: }
749:
750: sub rawconfig {
751: my $textualoverride=shift;
752: my $output='';
753: unless (($ENV{'browser.interface'} eq 'textual') ||
754: ($ENV{'environment.remote'} eq 'off')) {
755: $output.=
756: "window.status='Opening Remote Control';var swmenu=".&openmenu().
757: "\nwindow.status='Configuring Remote Control ';";
758: } else {
759: unless ($textualoverride) { return ''; }
760: }
761: my $uname=$ENV{'user.name'};
762: my $udom=$ENV{'user.domain'};
763: my $adv=$ENV{'user.adv'};
764: my $author=$ENV{'user.author'};
765: my $crs='';
766: if ($ENV{'request.course.id'}) {
767: $crs='/'.$ENV{'request.course.id'};
768: if ($ENV{'request.course.sec'}) {
769: $crs.='_'.$ENV{'request.course.sec'};
770: }
771: $crs=~s/\_/\//g;
772: }
773: my $pub=($ENV{'request.state'} eq 'published');
774: my $con=($ENV{'request.state'} eq 'construct');
775: my $rol=$ENV{'request.role'};
776: my $requested_domain = $ENV{'request.role.domain'};
777: foreach (@desklines) {
778: my ($row,$col,$pro,$prt,$img,$top,$bot,$act,$desc)=split(/\:/,$_);
779: $prt=~s/\$uname/$uname/g;
780: $prt=~s/\$udom/$udom/g;
781: $prt=~s/\$crs/$crs/g;
782: $prt=~s/\$requested_domain/$requested_domain/g;
783: if ($pro eq 'clear') {
784: $output.=&clear($row,$col);
785: } elsif ($pro eq 'any') {
786: $output.=&secondlevel(
787: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
788: } elsif ($pro eq 'smp') {
789: unless ($adv) {
790: $output.=&secondlevel(
791: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
792: }
793: } elsif ($pro eq 'adv') {
794: if ($adv) {
795: $output.=&secondlevel(
796: $uname,$udom,$rol,$crs,$pub,$con,$row,$col,$prt,$img,$top,$bot,$act,$desc);
797: }
798: } elsif (($pro=~/^p(\w+)/) && ($prt)) {
799: if (&Apache::lonnet::allowed($1,$prt)) {
800: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
801: }
802: } elsif ($pro eq 'course') {
803: if ($ENV{'request.course.fn'}) {
804: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
805: }
806: } elsif ($pro =~ /^course_(.*)$/) {
807: # Check for permissions inside of a course
808: if (($ENV{'request.course.id'}) &&
809: (&Apache::lonnet::allowed($1,$ENV{'request.course.id'}.
810: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))
811: )) {
812: $output.=switch($uname,$udom,$row,$col,$img,$top,$bot,$act,$desc);
813: }
814: } elsif ($pro eq 'author') {
815: if ($author) {
816: if ((($prt eq 'rca') && ($ENV{'request.role'}=~/^ca/)) ||
817: (($prt eq 'rau') && ($ENV{'request.role'}=~/^au/))) {
818: # Check that we are on the correct machine
819: my $cadom=$requested_domain;
820: my $caname=$ENV{'user.name'};
821: if ($prt eq 'rca') {
822: ($cadom,$caname)=
823: ($ENV{'request.role'}=~/(\w+)\/(\w+)$/);
824: }
825: $act =~ s/\$caname/$caname/g;
826: my $home = &Apache::lonnet::homeserver($caname,$cadom);
827: my $allowed=0;
828: my @ids=&Apache::lonnet::current_machine_ids();
829: foreach my $id (@ids) { if ($id eq $home) { $allowed=1; } }
830: if ($allowed) {
831: $output.=switch($caname,$cadom,
832: $row,$col,$img,$top,$bot,$act,$desc);
833: }
834: }
835: }
836: }
837: }
838: unless (($ENV{'browser.interface'} eq 'textual') ||
839: ($ENV{'environment.remote'} eq 'off')) {
840: $output.="\nwindow.status='Synchronizing Time';swmenu.syncclock(1000*".time.");\nwindow.status='Remote Control Configured.';";
841: }
842: return $output;
843: }
844:
845: # ======================================================================= Close
846:
847: sub close {
848: if (($ENV{'browser.interface'} eq 'textual') ||
849: ($ENV{'environment.remote'} eq 'off')) { return ''; }
850: my $menuname='LCmenu'.$Apache::lonnet::perlvar{'lonHostID'};
851: return(<<ENDCLOSE);
852: <script>
853: window.status='Accessing Remote Control';
854: menu=window.open("/adm/rat/empty.html","$menuname",
855: "height=350,width=150,scrollbars=no,menubar=no");
856: window.status='Disabling Remote Control';
857: menu.active=0;
858: menu.autologout=0;
859: window.status='Closing Remote Control';
860: menu.close();
861: window.status='Done.';
862: </script>
863: ENDCLOSE
864: }
865:
866: # ====================================================================== Footer
867:
868: sub footer {
869:
870: }
871:
872: sub utilityfunctions {
873: unless (($ENV{'browser.interface'} eq 'textual') ||
874: ($ENV{'environment.remote'} eq 'off')) { return ''; }
875: my $currenturl=$ENV{'request.noversionuri'};
876: my $currentsymb=$ENV{'request.symb'};
877: return (<<ENDUTILITY)
878:
879: var currentURL="$currenturl";
880: var reloadURL="$currenturl";
881: var currentSymb="$currentsymb";
882:
883: function go(url) {
884: if (url!='' && url!= null) {
885: currentURL = null;
886: currentSymb= null;
887: window.location.href=url;
888: }
889: }
890:
891: function gopost(url,postdata) {
892: if (url!='') {
893: this.document.server.action=url;
894: this.document.server.postdata.value=postdata;
895: this.document.server.command.value='';
896: this.document.server.url.value='';
897: this.document.server.symb.value='';
898: this.document.server.submit();
899: }
900: }
901:
902: function gocmd(url,cmd) {
903: if (url!='') {
904: this.document.server.action=url;
905: this.document.server.postdata.value='';
906: this.document.server.command.value=cmd;
907: this.document.server.url.value=currentURL;
908: this.document.server.symb.value=currentSymb;
909: this.document.server.submit();
910: }
911: }
912:
913: function catalog_info() {
914: loncatinfo=window.open(window.location.pathname+'.meta',"LONcatInfo",'height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
915: }
916:
917: function chat_win() {
918: lonchat=window.open('/res/adm/pages/chatroom.html',"LONchat",'height=320,width=280,resizable=yes,location=no,menubar=no,toolbar=no');
919: }
920: ENDUTILITY
921: }
922:
923: sub serverform {
924: return(<<ENDSERVERFORM);
925:
926: <form name="server" action="/adm/logout" method="post" target="_top">
927: <input type="hidden" name="postdata" value="none" />
928: <input type="hidden" name="command" value="none" />
929: <input type="hidden" name="url" value="none" />
930: <input type="hidden" name="symb" value="none" />
931: </form>
932: ENDSERVERFORM
933: }
934:
935: sub get_nav_status {
936: my $navstatus="swmenu.w_loncapanav_flag=";
937: if ($ENV{'environment.remotenavmap'} eq 'on') {
938: $navstatus.="1";
939: } else {
940: $navstatus.="-1";
941: }
942: return $navstatus;
943: }
944:
945: # ================================================ Handler when called directly
946:
947:
948: sub handler {
949: my $r = shift;
950: &Apache::loncommon::content_type($r,'text/html');
951: $r->send_http_header;
952: return OK if $r->header_only;
953:
954: my $form=&serverform();
955: my $bodytag=&Apache::loncommon::bodytag('Main Menu');
956: my $function='student';
957: if ($ENV{'request.role'}=~/^(cc|in|ta|ep)/) {
958: $function='coordinator';
959: }
960: if ($ENV{'request.role'}=~/^(su|dc|ad|li)/) {
961: $function='admin';
962: }
963: if (($ENV{'request.role'}=~/^(au|ca)/) ||
964: ($ENV{'request.noversionuri'}=~/^(\/priv|\~)/)) {
965: $function='author';
966: }
967: my $domain=&Apache::loncommon::determinedomain();
968: $pgbg=&Apache::loncommon::designparm($function.'.pgbg',$domain);
969: $tabbg=&Apache::loncommon::designparm($function.'.tabbg',$domain);
970: $font=&Apache::loncommon::designparm($function.'.font',$domain);
971: # ---- Print the screen, pretent to be in text mode to generate text-based menu
972: unless ($ENV{'browser.interface'} eq 'textual') {
973: $ENV{'browser.interface'}='faketextual';
974: $ENV{'environment.remote'}='off';
975: }
976: my $utility=&utilityfunctions();
977: $r->print(<<ENDHEADER);
978: <html><head>
979: <title>LON-CAPA Main Menu</title>
980: <script>
981: $utility
982: </script>
983: </head>
984: $bodytag
985: ENDHEADER
986: $r->print('<table>'.&inlinemenu().'</table>'.$form);
987: $r->print('</body></html>');
988: return OK;
989: }
990:
991: # ================================================================ Main Program
992:
993: BEGIN {
994: if (! defined($readdesk)) {
995: {
996: my $tabfile = $Apache::lonnet::perlvar{'lonTabDir'}.'/mydesk.tab';
997: if ( CORE::open( my $config,"<$tabfile") ) {
998: while (my $configline=<$config>) {
999: $configline=(split(/\#/,$configline))[0];
1000: $configline=~s/^\s+//;
1001: chomp($configline);
1002: if ($configline) {
1003: $desklines[$#desklines+1]=$configline;
1004: }
1005: }
1006: CORE::close($config);
1007: }
1008: }
1009: $readdesk='done';
1010: }
1011: }
1012:
1013: 1;
1014: __END__
1015:
1016:
1017:
1018:
1019:
1020:
1021:
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