Annotation of loncom/interface/lonhtmlcommon.pm, revision 1.358.2.15

1.2       www         1: # The LearningOnline Network with CAPA
                      2: # a pile of common html routines
                      3: #
1.358.2.15! raeburn     4: # $Id: lonhtmlcommon.pm,v 1.358.2.14 2018/09/09 21:16:34 raeburn Exp $
1.2       www         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: #
1.10      matthew    28: ######################################################################
                     29: ######################################################################
                     30: 
                     31: =pod
                     32: 
                     33: =head1 NAME
                     34: 
                     35: Apache::lonhtmlcommon - routines to do common html things
                     36: 
                     37: =head1 SYNOPSIS
                     38: 
                     39: Referenced by other mod_perl Apache modules.
                     40: 
                     41: =head1 INTRODUCTION
                     42: 
                     43: lonhtmlcommon is a collection of subroutines used to present information
                     44: in a consistent html format, or provide other functionality related to
                     45: html.
                     46: 
                     47: =head2 General Subroutines
                     48: 
                     49: =over 4
                     50: 
                     51: =cut 
                     52: 
                     53: ######################################################################
                     54: ######################################################################
1.2       www        55: 
1.1       stredwic   56: package Apache::lonhtmlcommon;
                     57: 
1.104     albertel   58: use strict;
1.10      matthew    59: use Time::Local;
1.47      sakharuk   60: use Time::HiRes;
1.30      www        61: use Apache::lonlocal;
1.104     albertel   62: use Apache::lonnet;
1.286     www        63: use HTML::Entities();
1.330     raeburn    64: use LONCAPA qw(:DEFAULT :match);
1.1       stredwic   65: 
1.284     www        66: sub java_not_enabled {
1.352     raeburn    67:     if (($env{'browser.mobile'}) && ($env{'browser.mobile'} =~ /^ipad|ipod|iphone$/i)) {
                     68:         return "\n".'<span class="LC_error">'.
                     69:                &mt('The required Java applet could not be started, because Java is not supported by your mobile device.').
                     70:                "</span>\n";
                     71:     } else {
                     72:         return "\n".'<span class="LC_error">'.
                     73:                &mt('The required Java applet could not be started. Please make sure to have Java installed and active in your browser.').
                     74:                "</span>\n";
                     75:     }
1.284     www        76: }
1.247     www        77: 
                     78: sub coursepreflink {
                     79:    my ($text,$category)=@_;
                     80:    if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
1.296     www        81:       return '<a target="_top" href="'.&HTML::Entities::encode("/adm/courseprefs?phase=display&actions=$category",'<>&"').'"><span class="LC_setting">'.$text.'</span></a>';
1.247     www        82:    } else {
                     83:       return '';
                     84:    }
                     85: }
                     86: 
1.253     www        87: sub raw_href_to_link {
                     88:    my ($message)=@_;
1.264     faziophi   89:    $message=~s/(https?\:\/\/[^\s\'\"\<]+)([\s\<]|$)/<a href="$1"><tt>$1<\/tt><\/a>$2/gi;
1.253     www        90:    return $message;
                     91: }
                     92: 
1.286     www        93: sub entity_encode {
                     94:     my ($text)=@_;
1.358.2.12  raeburn    95:     return &HTML::Entities::encode($text, '\'<>&"');
1.286     www        96: }
                     97: 
                     98: sub direct_parm_link {
                     99:     my ($linktext,$symb,$filter,$part,$target)=@_;
                    100:     $symb=&entity_encode($symb);
                    101:     $filter=&entity_encode($filter);
                    102:     $part=&entity_encode($part);
                    103:     if (($symb) && (&Apache::lonnet::allowed('opa')) && ($target ne 'tex')) {
1.315     raeburn   104:        return "<a target='_top' href='/adm/parmset?symb=$symb&amp;filter=$filter&amp;part=$part'><span class='LC_setting'>$linktext</span></a>";
1.286     www       105:     } else {
                    106:        return $linktext;
                    107:     }
                    108: }
1.208     www       109: ##############################################
                    110: ##############################################
                    111: 
1.309     raeburn   112: =item &confirm_success()
1.208     www       113: 
                    114: Successful completion of an operation message
                    115: 
                    116: =cut
                    117: 
                    118: sub confirm_success {
1.209     www       119:    my ($message,$failure)=@_;
                    120:    if ($failure) {
1.265     wenzelju  121:       return '<span class="LC_error" style="font-size: inherit;">'."\n"
1.218     bisitz    122:             .'<img src="/adm/lonIcons/navmap.wrong.gif" alt="'.&mt('Error').'" /> '."\n"
1.211     bisitz    123:             .$message."\n"
                    124:             .'</span>'."\n";
1.209     www       125:    } else {
1.211     bisitz    126:       return '<span class="LC_success">'."\n"
1.233     raeburn   127:             .'<img src="/adm/lonIcons/navmap.correct.gif" alt="'.&mt('OK').'" /> '."\n"
1.211     bisitz    128:             .$message."\n"
                    129:             .'</span>'."\n";
1.209     www       130:    }
1.208     www       131: }
1.176     foxr      132: 
                    133: ##############################################
                    134: ##############################################
                    135: 
                    136: =pod
                    137: 
1.309     raeburn   138: =item &dragmath_button()
1.176     foxr      139: 
1.177     raeburn   140: Creates a button that launches a dragmath popup-window, in which an 
                    141: expression can be edited and pasted as LaTeX into a specified textarea. 
                    142: 
                    143:   textarea - Name of the textarea to edit.
                    144:   helpicon - If true, show a help icon to the right of the button.
1.176     foxr      145: 
                    146: =cut
                    147: 
1.177     raeburn   148: sub dragmath_button {
                    149:     my ($textarea,$helpicon) = @_;
                    150:     my $help_text; 
                    151:     if ($helpicon) {
1.282     raeburn   152:         $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor',undef,undef,undef,undef,'mathhelpicon_'.$textarea);
1.177     raeburn   153:     }
1.178     bisitz    154:     my $buttontext=&mt('Edit Math');
1.177     raeburn   155:     return <<ENDDRAGMATH;
1.246     bisitz    156:                 <input type="button" value="$buttontext" onclick="javascript:mathedit('$textarea',document)" />$help_text
1.177     raeburn   157: ENDDRAGMATH
                    158: }
                    159: 
1.176     foxr      160: ##############################################
                    161: 
1.177     raeburn   162: =pod
                    163: 
1.309     raeburn   164: =item &dragmath_js()
1.177     raeburn   165: 
                    166: Javascript used to open pop-up window containing dragmath applet which 
                    167: can be used to paste LaTeX into a textarea.
1.309     raeburn   168: 
1.177     raeburn   169: =cut
1.176     foxr      170: 
1.177     raeburn   171: sub dragmath_js {
1.182     foxr      172:     my ($popup) = @_;
1.177     raeburn   173:     return <<ENDDRAGMATHJS;
                    174:                 <script type="text/javascript">
1.218     bisitz    175:                 // <![CDATA[
1.176     foxr      176:                   function mathedit(textarea, doc) {
                    177:                      targetEntry = textarea;
1.177     raeburn   178:                      targetDoc   = doc;
1.354     raeburn   179:                      newwin  = window.open("/adm/dragmath/$popup.html","","width=565,height=500,resizable");
1.176     foxr      180:                   }
1.218     bisitz    181:                 // ]]>
1.176     foxr      182:                 </script>
1.177     raeburn   183: 
                    184: ENDDRAGMATHJS
1.176     foxr      185: }
                    186: 
1.309     raeburn   187: ##############################################
                    188: ##############################################
                    189: 
                    190: =pod
                    191: 
                    192: =item &dependencies_button()
                    193: 
                    194: Creates a button that launches a popup-window, in which dependencies  
                    195: for the web page in the main window can be added to, replaced or deleted.  
                    196: 
                    197: =cut
                    198: 
                    199: sub dependencies_button {
                    200:     my $buttontext=&mt('Manage Dependencies');
                    201:     return <<"END";
                    202:                 <input type="button" value="$buttontext" onclick="javascript:dependencycheck();" />
                    203: END
                    204: }
                    205: 
                    206: ##############################################
                    207: 
                    208: =pod
                    209: 
                    210: =item &dependencycheck_js()
                    211: 
                    212: Javascript used to open pop-up window containing interface to manage 
                    213: dependencies for a web page uploaded diretcly to a course.
                    214: 
                    215: =cut
                    216: 
                    217: sub dependencycheck_js {
1.334     raeburn   218:     my ($symb,$title,$url,$folderpath,$uri) = @_;
                    219:     my $link;
                    220:     if ($symb) {
                    221:         $link = '/adm/dependencies?symb='.&HTML::Entities::encode($symb,'<>&"');
                    222:     } elsif ($folderpath) {
                    223:         $link = '/adm/dependencies?folderpath='.&HTML::Entities::encode($folderpath,'<>&"');
                    224:          $url = $uri;
1.344     raeburn   225:     } elsif ($uri =~ m{^/public/$match_domain/$match_courseid/syllabus$}) {
                    226:         $link = '/adm/dependencies';
1.334     raeburn   227:     }
                    228:     $link .= (($link=~/\?/)?'&amp;':'?').'title='.
                    229:              &HTML::Entities::encode($title,'<>&"');
                    230:     if ($url) {
                    231:         $link .= '&url='.&HTML::Entities::encode($url,'<>&"');
                    232:     }
1.309     raeburn   233:     return <<ENDJS;
                    234:                 <script type="text/javascript">
                    235:                 // <![CDATA[
                    236:                   function dependencycheck() {
                    237:                      depwin  = window.open("$link","","width=750,height=500,resizable,scrollbars=yes");
                    238:                   }
                    239:                 // ]]>
                    240:                 </script>
                    241: ENDJS
                    242: }
1.182     foxr      243: 
1.40      www       244: ##############################################
                    245: ##############################################
                    246: 
                    247: =pod
                    248: 
1.309     raeburn   249: =item &authorbombs()
1.40      www       250: 
                    251: =cut
                    252: 
                    253: ##############################################
                    254: ##############################################
                    255: 
                    256: sub authorbombs {
                    257:     my $url=shift;
                    258:     $url=&Apache::lonnet::declutter($url);
1.155     albertel  259:     my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
1.40      www       260:     my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
1.232     raeburn   261:     foreach my $bomb (keys(%bombs)) {
                    262: 	if ($bomb =~ /^$udom\/$uname\//) {
1.40      www       263: 	    return '<a href="/adm/bombs/'.$url.
1.218     bisitz    264: 		'"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" alt="'.&mt('Bomb').'" border="0" /></a>'.
1.40      www       265: 		&Apache::loncommon::help_open_topic('About_Bombs');
                    266: 	}
                    267:     }
                    268:     return '';
                    269: }
1.26      matthew   270: 
                    271: ##############################################
                    272: ##############################################
                    273: 
1.41      www       274: sub recent_filename {
                    275:     my $area=shift;
1.130     www       276:     return 'nohist_recent_'.&escape($area);
1.41      www       277: }
                    278: 
                    279: sub store_recent {
1.136     albertel  280:     my ($area,$name,$value,$freeze)=@_;
1.41      www       281:     my $file=&recent_filename($area);
                    282:     my %recent=&Apache::lonnet::dump($file);
1.111     www       283:     if (scalar(keys(%recent))>20) {
1.41      www       284: # remove oldest value
1.136     albertel  285: 	my $oldest=time();
1.41      www       286: 	my $delkey='';
1.136     albertel  287: 	foreach my $item (keys(%recent)) {
                    288: 	    my $thistime=(split(/\&/,$recent{$item}))[0];
                    289: 	    if (($thistime ne "always_include") && ($thistime<$oldest)) {
1.41      www       290: 		$oldest=$thistime;
1.136     albertel  291: 		$delkey=$item;
1.41      www       292: 	    }
                    293: 	}
                    294: 	&Apache::lonnet::del($file,[$delkey]);
                    295:     }
                    296: # store new value
1.136     albertel  297:     my $timestamp;
                    298:     if ($freeze) {
                    299:         $timestamp = "always_include";
                    300:     } else {
                    301:         $timestamp = time();
                    302:     }   
1.41      www       303:     &Apache::lonnet::put($file,{ $name => 
1.136     albertel  304: 				 $timestamp.'&'.&escape($value) });
1.41      www       305: }
                    306: 
1.89      banghart  307: sub remove_recent {
                    308:     my ($area,$names)=@_;
                    309:     my $file=&recent_filename($area);
                    310:     return &Apache::lonnet::del($file,$names);
                    311: }
                    312: 
1.41      www       313: sub select_recent {
                    314:     my ($area,$fieldname,$event)=@_;
                    315:     my %recent=&Apache::lonnet::dump(&recent_filename($area));
                    316:     my $return="\n<select name='$fieldname'".
1.96      albertel  317: 	($event?" onchange='$event'":'').
1.41      www       318: 	">\n<option value=''>--- ".&mt('Recent')." ---</option>";
1.136     albertel  319:     foreach my $value (sort(keys(%recent))) {
                    320: 	unless ($value =~/^error\:/) {
                    321: 	    my $escaped = &Apache::loncommon::escape_url($value);
1.160     albertel  322: 	    &Apache::loncommon::inhibit_menu_check(\$escaped);
1.251     raeburn   323:             if ($area eq 'residx') {
                    324:                 next if ((!&Apache::lonnet::allowed('bre',$value)) && (!&Apache::lonnet::allowed('bro',$value)));
                    325:             }
1.94      foxr      326: 	    $return.="\n<option value='$escaped'>".
1.136     albertel  327: 		&unescape((split(/\&/,$recent{$value}))[1]).
1.41      www       328: 		'</option>';
                    329: 	}
                    330:     }
                    331:     $return.="\n</select>\n";
                    332:     return $return;
                    333: }
                    334: 
1.97      albertel  335: sub get_recent {
                    336:     my ($area, $n) = @_;
                    337:     my %recent=&Apache::lonnet::dump(&recent_filename($area));
                    338: 
                    339: # Create hash with key as time and recent as value
1.136     albertel  340: # Begin filling return_hash with any 'always_include' option
1.97      albertel  341:     my %time_hash = ();
1.136     albertel  342:     my %return_hash = ();
1.232     raeburn   343:     foreach my $item (keys(%recent)) {
1.136     albertel  344:         my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
                    345:         if ($thistime eq 'always_include') {
                    346:             $return_hash{$item} = &unescape($thisvalue);
                    347:             $n--;
                    348:         } else {
                    349:             $time_hash{$thistime} = $item;
1.133     albertel  350:         }
1.97      albertel  351:     }
                    352: 
                    353: # Sort by decreasing time and return key value pairs
                    354:     my $idx = 1;
1.136     albertel  355:     foreach my $item (reverse(sort(keys(%time_hash)))) {
                    356:        $return_hash{$time_hash{$item}} =
                    357:                   &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
1.97      albertel  358:        if ($n && ($idx++ >= $n)) {last;}
                    359:     }
                    360: 
                    361:     return %return_hash;
                    362: }
                    363: 
1.136     albertel  364: sub get_recent_frozen {
                    365:     my ($area) = @_;
                    366:     my %recent=&Apache::lonnet::dump(&recent_filename($area));
                    367: 
                    368: # Create hash with all 'frozen' items
                    369:     my %return_hash = ();
                    370:     foreach my $item (keys(%recent)) {
                    371:         my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
                    372:         if ($thistime eq 'always_include') {
                    373:             $return_hash{$item} = &unescape($thisvalue);
                    374:         }
                    375:     }
                    376:     return %return_hash;
                    377: }
                    378: 
1.97      albertel  379: 
1.41      www       380: 
1.26      matthew   381: =pod
                    382: 
1.309     raeburn   383: =item &textbox()
1.26      matthew   384: 
                    385: =cut
                    386: 
                    387: ##############################################
                    388: ##############################################
                    389: sub textbox {
                    390:     my ($name,$value,$size,$special) = @_;
                    391:     $size = 40 if (! defined($size));
1.128     albertel  392:     $value = &HTML::Entities::encode($value,'<>&"');
1.26      matthew   393:     my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
                    394:         'value="'.$value.'" '.$special.' />';
                    395:     return $Str;
                    396: }
                    397: 
                    398: ##############################################
                    399: ##############################################
                    400: 
                    401: =pod
                    402: 
1.309     raeburn   403: =item &checkbox()
1.26      matthew   404: 
                    405: =cut
                    406: 
                    407: ##############################################
                    408: ##############################################
                    409: sub checkbox {
1.358.2.10  raeburn   410:     my ($name,$checked,$value,$special) = @_;
1.68      matthew   411:     my $Str = '<input type="checkbox" name="'.$name.'" ';
                    412:     if (defined($value)) {
                    413:         $Str .= 'value="'.$value.'"';
                    414:     } 
                    415:     if ($checked) {
1.206     bisitz    416:         $Str .= ' checked="checked"';
1.68      matthew   417:     }
1.358.2.10  raeburn   418:     $Str .= $special.' />';
1.26      matthew   419:     return $Str;
                    420: }
                    421: 
1.120     albertel  422: 
                    423: =pod
                    424: 
1.309     raeburn   425: =item &radiobutton()
1.120     albertel  426: 
                    427: =cut
                    428: 
                    429: ##############################################
                    430: ##############################################
                    431: sub radio {
                    432:     my ($name,$checked,$value) = @_;
                    433:     my $Str = '<input type="radio" name="'.$name.'" ';
                    434:     if (defined($value)) {
                    435:         $Str .= 'value="'.$value.'"';
                    436:     } 
                    437:     if ($checked eq $value) {
1.206     bisitz    438:         $Str .= ' checked="checked"';
1.120     albertel  439:     }
                    440:     $Str .= ' />';
                    441:     return $Str;
                    442: }
                    443: 
1.10      matthew   444: ##############################################
                    445: ##############################################
                    446: 
                    447: =pod
                    448: 
1.309     raeburn   449: =item &date_setter()
1.10      matthew   450: 
1.22      matthew   451: &date_setter returns html and javascript for a compact date-setting form.
1.309     raeburn   452: To retrieve values from it, use &get_date_from_form.
1.22      matthew   453: 
1.10      matthew   454: Inputs
                    455: 
                    456: =over 4
                    457: 
                    458: =item $dname 
                    459: 
                    460: The name to prepend to the form elements.  
                    461: The form elements defined will be dname_year, dname_month, dname_day,
                    462: dname_hour, dname_min, and dname_sec.
                    463: 
                    464: =item $currentvalue
                    465: 
                    466: The current setting for this time parameter.  A unix format time
                    467: (time in seconds since the beginning of Jan 1st, 1970, GMT.  
1.257     faziophi  468: An undefined value is taken to indicate the value is the current time
                    469: unless it is requested to leave it empty. See $includeempty.
1.10      matthew   470: Also, to be explicit, a value of 'now' also indicates the current time.
                    471: 
1.26      matthew   472: =item $special
                    473: 
                    474: Additional html/javascript to be associated with each element in
                    475: the date_setter.  See lonparmset for example usage.
                    476: 
1.59      matthew   477: =item $includeempty 
                    478: 
1.257     faziophi  479: If it is set (true) and no date/time value is provided,
                    480: the date/time fields are left empty.
                    481: 
1.59      matthew   482: =item $state
                    483: 
                    484: Specifies the initial state of the form elements.  Either 'disabled' or empty.
1.358.2.1  raeburn   485: Defaults to empty, which indicates the form elements are not disabled.
                    486: 
                    487: =item $no_hh_mm_ss
                    488: 
                    489: If true, text boxes for hours, minutes and seconds are omitted.
                    490: 
                    491: =item $defhour
                    492: 
                    493: Default value for hours (a default of 0 is used otherwise).
                    494: 
                    495: =item $defmin
                    496: 
                    497: Default value for minutes (a default of 0 is used otherwise).
                    498: 
                    499: =item defsec
                    500: 
                    501: Default value for seconds (a default of 0 is used otherwise).
                    502: 
                    503: =item $nolink
                    504: 
                    505: If true, a "Select calendar" link (to pop-up a calendar) is not displayed
                    506: to the right of the items.
                    507: 
                    508: =item $no_mm_ss
                    509: 
                    510: If true, text boxes for minutes and seconds are omitted.
                    511: 
                    512: =item $no_ss
                    513: 
                    514: If true, text boxes for seconds are omitted.
1.59      matthew   515: 
1.22      matthew   516: =back
                    517: 
                    518: Bugs
                    519: 
                    520: The method used to restrict user input will fail in the year 2400.
                    521: 
1.10      matthew   522: =cut
                    523: 
                    524: ##############################################
                    525: ##############################################
                    526: sub date_setter {
1.67      matthew   527:     my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
1.358.2.1  raeburn   528:         $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink,$no_mm_ss,$no_ss) = @_;
1.175     raeburn   529:     my $now = time;
1.257     faziophi  530: 
                    531:     my $tzname;
                    532:     my ($sec,$min,$hour,$mday,$month,$year) = ('', '', undef,''.''.'');
                    533:     #other potentially useful values:    wkday,yrday,is_daylight_savings
                    534: 
1.59      matthew   535:     if (! defined($state) || $state ne 'disabled') {
                    536:         $state = '';
1.358.2.8  raeburn   537:     } else {
                    538:         $state = 'disabled="disabled"';
1.59      matthew   539:     }
1.67      matthew   540:     if (! defined($no_hh_mm_ss)) {
                    541:         $no_hh_mm_ss = 0;
                    542:     }
1.110     www       543:     if ($currentvalue eq 'now') {
1.257     faziophi  544:         $currentvalue = $now;
1.110     www       545:     }
1.257     faziophi  546:     
                    547:     # Default value: Set empty date field to current time
                    548:     # unless empty inclusion is requested
                    549:     if ((!$includeempty) && (!$currentvalue)) {
                    550:         $currentvalue = $now;
1.10      matthew   551:     }
1.257     faziophi  552:     # Do we have a date? Split it!
1.39      www       553:     if ($currentvalue) {
1.257     faziophi  554: 	($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue);
                    555: 
                    556:         #No values provided for hour, min, sec? Use default 0
                    557:         if (($defhour) || ($defmin) || ($defsec)) {
                    558:             $sec  = ($defsec  ? $defsec  : 0);
                    559:             $min  = ($defmin  ? $defmin  : 0);
                    560:             $hour = ($defhour ? $defhour : 0);
                    561:         }
1.107     www       562:     }
1.10      matthew   563:     my $result = "\n<!-- $dname date setting form -->\n";
                    564:     $result .= <<ENDJS;
1.135     albertel  565: <script type="text/javascript">
1.218     bisitz    566: // <![CDATA[
1.10      matthew   567:     function $dname\_checkday() {
                    568:         var day   = document.$formname.$dname\_day.value;
                    569:         var month = document.$formname.$dname\_month.value;
                    570:         var year  = document.$formname.$dname\_year.value;
                    571:         var valid = true;
                    572:         if (day < 1) {
                    573:             document.$formname.$dname\_day.value = 1;
                    574:         } 
                    575:         if (day > 31) {
                    576:             document.$formname.$dname\_day.value = 31;
                    577:         }
                    578:         if ((month == 1)  || (month == 3)  || (month == 5)  ||
                    579:             (month == 7)  || (month == 8)  || (month == 10) ||
                    580:             (month == 12)) {
                    581:             if (day > 31) {
                    582:                 document.$formname.$dname\_day.value = 31;
                    583:                 day = 31;
                    584:             }
                    585:         } else if (month == 2 ) {
                    586:             if ((year % 4 == 0) && (year % 100 != 0)) {
                    587:                 if (day > 29) {
                    588:                     document.$formname.$dname\_day.value = 29;
                    589:                 }
                    590:             } else if (day > 29) {
                    591:                 document.$formname.$dname\_day.value = 28;
                    592:             }
                    593:         } else if (day > 30) {
                    594:             document.$formname.$dname\_day.value = 30;
                    595:         }
                    596:     }
1.95      matthew   597:     
1.59      matthew   598:     function $dname\_disable() {
                    599:         document.$formname.$dname\_month.disabled=true;
                    600:         document.$formname.$dname\_day.disabled=true;
                    601:         document.$formname.$dname\_year.disabled=true;
                    602:         document.$formname.$dname\_hour.disabled=true;
                    603:         document.$formname.$dname\_minute.disabled=true;
                    604:         document.$formname.$dname\_second.disabled=true;
                    605:     }
                    606: 
                    607:     function $dname\_enable() {
                    608:         document.$formname.$dname\_month.disabled=false;
                    609:         document.$formname.$dname\_day.disabled=false;
                    610:         document.$formname.$dname\_year.disabled=false;
                    611:         document.$formname.$dname\_hour.disabled=false;
                    612:         document.$formname.$dname\_minute.disabled=false;
                    613:         document.$formname.$dname\_second.disabled=false;        
                    614:     }
                    615: 
1.29      www       616:     function $dname\_opencalendar() {
1.59      matthew   617:         if (! document.$formname.$dname\_month.disabled) {
                    618:             var calwin=window.open(
1.29      www       619: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
                    620: document.$formname.$dname\_month.value+"&year="+
                    621: document.$formname.$dname\_year.value,
                    622:              "LONCAPAcal",
                    623:               "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
1.59      matthew   624:         }
1.29      www       625: 
                    626:     }
1.218     bisitz    627: // ]]>
1.10      matthew   628: </script>
                    629: ENDJS
1.192     bisitz    630:     $result .= '  <span class="LC_nobreak">';
1.96      albertel  631:     my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
1.67      matthew   632:     # Month
1.10      matthew   633:     my @Months = qw/January February  March     April   May      June 
                    634:                     July    August    September October November December/;
                    635:     # Pad @Months with a bogus value to make indexing easier
                    636:     unshift(@Months,'If you can read this an error occurred');
1.95      matthew   637:     if ($includeempty) { $monthselector.="<option value=''></option>"; }
1.10      matthew   638:     for(my $m = 1;$m <=$#Months;$m++) {
1.228     bisitz    639:         $monthselector .= qq{      <option value="$m"};
                    640:         $monthselector .= ' selected="selected"' if ($m-1 eq $month);
                    641:         $monthselector .= '> '.&mt($Months[$m]).' </option>'."\n";
1.10      matthew   642:     }
1.95      matthew   643:     $monthselector.= '  </select>';
1.67      matthew   644:     # Day
1.96      albertel  645:     my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
1.67      matthew   646:     # Year
1.226     bisitz    647:     my $yearselector = qq{<input type="text" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
1.95      matthew   648:     #
                    649:     my $hourselector = qq{<select name="$dname\_hour" $special $state >};
                    650:     if ($includeempty) { 
                    651:         $hourselector.=qq{<option value=''></option>};
                    652:     }
                    653:     for (my $h = 0;$h<24;$h++) {
1.228     bisitz    654:         $hourselector .= qq{<option value="$h"};
                    655:         $hourselector .= ' selected="selected"' if (defined($hour) && $hour == $h);
1.95      matthew   656:         $hourselector .= ">";
                    657:         my $timest='';
                    658:         if ($h == 0) {
                    659:             $timest .= "12 am";
                    660:         } elsif($h == 12) {
                    661:             $timest .= "12 noon";
                    662:         } elsif($h < 12) {
                    663:             $timest .= "$h am";
                    664:         } else {
                    665:             $timest .= $h-12 ." pm";
                    666:         }
                    667:         $timest=&mt($timest);
                    668:         $hourselector .= $timest." </option>\n";
                    669:     }
                    670:     $hourselector .= "  </select>\n";
                    671:     my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
                    672:     my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
1.134     raeburn   673:     my $cal_link;
1.358.2.13  raeburn   674:     unless (($nolink) || ($state eq 'disabled')) {
1.134     raeburn   675:         $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
                    676:     }
1.95      matthew   677:     #
1.175     raeburn   678:     my $tzone = ' '.$tzname.' ';
1.95      matthew   679:     if ($no_hh_mm_ss) {
1.134     raeburn   680:         $result .= &mt('[_1] [_2] [_3] ',
1.174     raeburn   681:                        $monthselector,$dayselector,$yearselector).
                    682:                    $tzone;
1.358.2.1  raeburn   683:     } elsif ($no_mm_ss) {
                    684:         $result .= &mt('[_1] [_2] [_3] [_4]',
                    685:                       $monthselector,$dayselector,$yearselector,
                    686:                       $hourselector).
                    687:                    $tzone;
                    688:     } elsif ($no_ss) {
                    689:         $result .= &mt('[_1] [_2] [_3] [_4] [_5]m',
                    690:                       $monthselector,$dayselector,$yearselector,
                    691:                       $hourselector,$minuteselector).
                    692:                    $tzone;
1.95      matthew   693:     } else {
1.134     raeburn   694:         $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
                    695:                       $monthselector,$dayselector,$yearselector,
1.174     raeburn   696:                       $hourselector,$minuteselector,$secondselector).
                    697:                    $tzone;
1.358.2.1  raeburn   698:     }
1.358.2.13  raeburn   699:     unless (($nolink) || ($state eq 'disabled')) {
1.358.2.1  raeburn   700:         $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
1.67      matthew   701:     }
1.135     albertel  702:     $result .= "</span>\n<!-- end $dname date setting form -->\n";
1.10      matthew   703:     return $result;
                    704: }
                    705: 
1.175     raeburn   706: sub get_timedates {
                    707:     my ($epoch) = @_;
                    708:     my $dt = DateTime->from_epoch(epoch => $epoch)
                    709:                      ->set_time_zone(&Apache::lonlocal::gettimezone());
                    710:     my $tzname = $dt->time_zone_short_name();
                    711:     my $sec = $dt->second;
                    712:     my $min = $dt->minute;
                    713:     my $hour = $dt->hour;
                    714:     my $mday = $dt->day;
                    715:     my $month = $dt->month;
                    716:     if ($month) {
                    717:         $month --;
                    718:     }
                    719:     my $year = $dt->year;
                    720:     return ($tzname,$sec,$min,$hour,$mday,$month,$year);
                    721: }
1.166     banghart  722: 
                    723: sub build_url {
                    724:     my ($base, $fields)=@_;
                    725:     my $url;
                    726:     $url = $base.'?';
1.168     albertel  727:     foreach my $key (keys(%$fields)) {
                    728:         $url.=&escape($key).'='.&escape($$fields{$key}).'&amp;';
1.166     banghart  729:     }
                    730:     $url =~ s/&amp;$//;
                    731:     return $url;
                    732: }
                    733: 
                    734: 
1.10      matthew   735: ##############################################
                    736: ##############################################
                    737: 
1.22      matthew   738: =pod
                    739: 
1.309     raeburn   740: =item &get_date_from_form()
1.22      matthew   741: 
                    742: get_date_from_form retrieves the date specified in an &date_setter form.
1.10      matthew   743: 
                    744: Inputs:
                    745: 
                    746: =over 4
                    747: 
                    748: =item $dname
                    749: 
1.226     bisitz    750: The name passed to &date_setter, which prefixes the form elements.
1.10      matthew   751: 
                    752: =item $defaulttime
                    753: 
                    754: The unix time to use as the default in case of poor inputs.
                    755: 
                    756: =back
                    757: 
                    758: Returns: Unix time represented in the form.
                    759: 
                    760: =cut
                    761: 
                    762: ##############################################
                    763: ##############################################
                    764: sub get_date_from_form {
                    765:     my ($dname) = @_;
                    766:     my ($sec,$min,$hour,$day,$month,$year);
                    767:     #
1.104     albertel  768:     if (defined($env{'form.'.$dname.'_second'})) {
                    769:         my $tmpsec = $env{'form.'.$dname.'_second'};
1.10      matthew   770:         if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
                    771:             $sec = $tmpsec;
                    772:         }
1.64      albertel  773: 	if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
1.67      matthew   774:     } else {
                    775:         $sec = 0;
1.10      matthew   776:     }
1.104     albertel  777:     if (defined($env{'form.'.$dname.'_minute'})) {
                    778:         my $tmpmin = $env{'form.'.$dname.'_minute'};
1.10      matthew   779:         if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
                    780:             $min = $tmpmin;
                    781:         }
1.64      albertel  782: 	if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
1.67      matthew   783:     } else {
                    784:         $min = 0;
1.10      matthew   785:     }
1.104     albertel  786:     if (defined($env{'form.'.$dname.'_hour'})) {
                    787:         my $tmphour = $env{'form.'.$dname.'_hour'};
1.33      matthew   788:         if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
1.10      matthew   789:             $hour = $tmphour;
                    790:         }
1.67      matthew   791:     } else {
                    792:         $hour = 0;
1.10      matthew   793:     }
1.104     albertel  794:     if (defined($env{'form.'.$dname.'_day'})) {
                    795:         my $tmpday = $env{'form.'.$dname.'_day'};
1.10      matthew   796:         if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
                    797:             $day = $tmpday;
                    798:         }
                    799:     }
1.104     albertel  800:     if (defined($env{'form.'.$dname.'_month'})) {
                    801:         my $tmpmonth = $env{'form.'.$dname.'_month'};
1.10      matthew   802:         if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
1.175     raeburn   803:             $month = $tmpmonth;
1.10      matthew   804:         }
                    805:     }
1.104     albertel  806:     if (defined($env{'form.'.$dname.'_year'})) {
                    807:         my $tmpyear = $env{'form.'.$dname.'_year'};
1.175     raeburn   808:         if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
                    809:             $year = $tmpyear;
1.10      matthew   810:         }
                    811:     }
1.175     raeburn   812:     if (($year<1970) || ($year>2037)) { return undef; }
1.33      matthew   813:     if (defined($sec) && defined($min)   && defined($hour) &&
1.175     raeburn   814:         defined($day) && defined($month) && defined($year)) {
                    815:         my $timezone = &Apache::lonlocal::gettimezone();
                    816:         my $dt = DateTime->new( year   => $year,
                    817:                                 month  => $month,
                    818:                                 day    => $day,
                    819:                                 hour   => $hour,
                    820:                                 minute => $min,
                    821:                                 second => $sec,
                    822:                                 time_zone => $timezone,
                    823:                               );
                    824:         my $epoch_time  = $dt->epoch;
                    825:         if ($epoch_time ne '') {
                    826:             return $epoch_time;
                    827:         } else {
                    828:             return undef;
                    829:         }
1.10      matthew   830:     } else {
                    831:         return undef;
                    832:     }
1.20      matthew   833: }
                    834: 
                    835: ##############################################
                    836: ##############################################
                    837: 
                    838: =pod
                    839: 
                    840: =item &pjump_javascript_definition()
                    841: 
                    842: Returns javascript defining the 'pjump' function, which opens up a
                    843: parameter setting wizard.
                    844: 
                    845: =cut
                    846: 
                    847: ##############################################
                    848: ##############################################
                    849: sub pjump_javascript_definition {
                    850:     my $Str = <<END;
1.109     www       851:     function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
1.295     www       852:         openMyModal("/adm/rat/parameter.html?type="+escape(type)
1.20      matthew   853:                  +"&value="+escape(value)+"&marker="+escape(marker)
                    854:                  +"&return="+escape(ret)
1.109     www       855:                  +"&call="+escape(call)+"&name="+escape(dis)
                    856:                  +"&defhour="+escape(hour)+"&defmin="+escape(min)
1.295     www       857:                  +"&defsec="+escape(sec)+"&modal=1",350,350,'no');
1.20      matthew   858:     }
                    859: END
                    860:     return $Str;
1.10      matthew   861: }
                    862: 
                    863: ##############################################
                    864: ##############################################
1.17      matthew   865: 
                    866: =pod
                    867: 
                    868: =item &javascript_nothing()
                    869: 
                    870: Return an appropriate null for the users browser.  This is used
                    871: as the first arguement for window.open calls when you want a blank
                    872: window that you can then write to.
                    873: 
                    874: =cut
                    875: 
                    876: ##############################################
                    877: ##############################################
                    878: sub javascript_nothing {
                    879:     # mozilla and other browsers work with "''", but IE on mac does not.
                    880:     my $nothing = "''";
                    881:     my $user_browser;
                    882:     my $user_os;
1.104     albertel  883:     $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
                    884:     $user_os      = $env{'browser.os'}   if (exists($env{'browser.os'}));
1.17      matthew   885:     if (! defined($user_browser) || ! defined($user_os)) {
                    886:         (undef,$user_browser,undef,undef,undef,$user_os) = 
                    887:                            &Apache::loncommon::decode_user_agent();
                    888:     }
                    889:     if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
                    890:         $nothing = "'javascript:void(0);'";
                    891:     }
                    892:     return $nothing;
                    893: }
                    894: 
1.90      www       895: ##############################################
                    896: ##############################################
                    897: sub javascript_docopen {
1.171     albertel  898:     my ($mimetype) = @_;
                    899:     $mimetype ||= 'text/html';
1.90      www       900:     # safari does not understand document.open() and loads "text/html"
                    901:     my $nothing = "''";
                    902:     my $user_browser;
                    903:     my $user_os;
1.104     albertel  904:     $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
                    905:     $user_os      = $env{'browser.os'}   if (exists($env{'browser.os'}));
1.90      www       906:     if (! defined($user_browser) || ! defined($user_os)) {
                    907:         (undef,$user_browser,undef,undef,undef,$user_os) = 
                    908:                            &Apache::loncommon::decode_user_agent();
                    909:     }
                    910:     if ($user_browser eq 'safari' && $user_os =~ 'mac') {
                    911:         $nothing = "document.clear()";
                    912:     } else {
1.171     albertel  913: 	$nothing = "document.open('$mimetype','replace')";
1.90      www       914:     }
                    915:     return $nothing;
                    916: }
                    917: 
1.21      matthew   918: 
1.17      matthew   919: ##############################################
                    920: ##############################################
                    921: 
1.21      matthew   922: =pod
1.17      matthew   923: 
1.21      matthew   924: =item &StatusOptions()
1.10      matthew   925: 
1.21      matthew   926: Returns html for a selection box which allows the user to choose the
                    927: enrollment status of students.  The selection box name is 'Status'.
1.6       stredwic  928: 
1.21      matthew   929: Inputs:
1.6       stredwic  930: 
1.21      matthew   931: $status: the currently selected status.  If undefined the value of
1.104     albertel  932: $env{'form.Status'} is taken.  If that is undefined, a value of 'Active'
1.21      matthew   933: is used.
1.6       stredwic  934: 
1.21      matthew   935: $formname: The name of the form.  If defined the onchange attribute of
                    936: the selection box is set to document.$formname.submit().
1.6       stredwic  937: 
1.21      matthew   938: $size: the size (number of lines) of the selection box.
1.6       stredwic  939: 
1.27      matthew   940: $onchange: javascript to use when the value is changed.  Enclosed in 
                    941: double quotes, ""s, not single quotes.
                    942: 
1.21      matthew   943: Returns: a perl string as described.
1.1       stredwic  944: 
1.21      matthew   945: =cut
1.9       stredwic  946: 
1.21      matthew   947: ##############################################
                    948: ##############################################
                    949: sub StatusOptions {
1.165     banghart  950:     my ($status, $formName,$size,$onchange,$mult)=@_;
1.21      matthew   951:     $size = 1 if (!defined($size));
                    952:     if (! defined($status)) {
                    953:         $status = 'Active';
1.104     albertel  954:         $status = $env{'form.Status'} if (exists($env{'form.Status'}));
1.9       stredwic  955:     }
1.1       stredwic  956: 
                    957:     my $Str = '';
                    958:     $Str .= '<select name="Status"';
1.165     banghart  959:     if (defined($mult)){
                    960:         $Str .= ' multiple="multiple" ';
                    961:     }
1.27      matthew   962:     if(defined($formName) && $formName ne '' && ! defined($onchange)) {
1.1       stredwic  963:         $Str .= ' onchange="document.'.$formName.'.submit()"';
1.27      matthew   964:     }
                    965:     if (defined($onchange)) {
                    966:         $Str .= ' onchange="'.$onchange.'"';
1.1       stredwic  967:     }
1.21      matthew   968:     $Str .= ' size="'.$size.'" ';
1.1       stredwic  969:     $Str .= '>'."\n";
1.153     raeburn   970:     foreach my $type (['Active',  &mt('Currently Has Access')],
                    971: 		      ['Future',  &mt('Will Have Future Access')],
                    972: 		      ['Expired', &mt('Previously Had Access')],
                    973: 		      ['Any',     &mt('Any Access Status')]) {
1.151     albertel  974: 	my ($name,$label) = @$type;
                    975: 	$Str .= '<option value="'.$name.'" ';
                    976: 	if ($status eq $name) {
                    977: 	    $Str .= 'selected="selected" ';
                    978: 	}
                    979: 	$Str .= '>'.$label.'</option>'."\n";
                    980:     }
                    981: 
1.1       stredwic  982:     $Str .= '</select>'."\n";
1.7       stredwic  983: }
1.12      matthew   984: 
                    985: ########################################################
                    986: ########################################################
1.7       stredwic  987: 
1.23      matthew   988: =pod
                    989: 
                    990: =item Progess Window Handling Routines
                    991: 
                    992: These routines handle the creation, update, increment, and closure of 
                    993: progress windows.  The progress window reports to the user the number
                    994: of items completed and an estimate of the time required to complete the rest.
                    995: 
                    996: =over 4
                    997: 
                    998: 
1.309     raeburn   999: =item &Create_PrgWin()
1.23      matthew  1000: 
                   1001: Writes javascript to the client to open a progress window and returns a
                   1002: data structure used for bookkeeping.
                   1003: 
                   1004: Inputs
                   1005: 
                   1006: =over 4
                   1007: 
                   1008: =item $r Apache request
                   1009: 
                   1010: =item $number_to_do The total number of items being processed.
1.50      albertel 1011: 
1.358.2.14  raeburn  1012: =item $preamble Optional HTML to display before the progress bar.
                   1013: 
1.23      matthew  1014: =back
                   1015: 
                   1016: Returns a hash containing the progress state data structure.
1.358.2.14  raeburn  1017: If $number_to_do is zero or null, an indeterminate progress bar will
                   1018: be used.
1.23      matthew  1019: 
1.309     raeburn  1020: =item &Update_PrgWin()
1.23      matthew  1021: 
                   1022: Updates the text in the progress indicator.  Does not increment the count.
                   1023: See &Increment_PrgWin.
                   1024: 
                   1025: Inputs:
                   1026: 
                   1027: =over 4
                   1028: 
                   1029: =item $r Apache request
                   1030: 
                   1031: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
                   1032: 
                   1033: =item $displaystring The string to write to the status indicator
                   1034: 
                   1035: =back
                   1036: 
                   1037: Returns: none
                   1038: 
                   1039: 
1.309     raeburn  1040: =item Increment_PrgWin()
1.23      matthew  1041: 
1.276     bisitz   1042: Increment the count of items completed for the progress window by $step or 1 if no step is provided.
1.23      matthew  1043: 
                   1044: Inputs:
                   1045: 
                   1046: =over 4
                   1047: 
                   1048: =item $r Apache request
                   1049: 
                   1050: =item $prog_state Pointer to the data structure returned by Create_PrgWin
                   1051: 
                   1052: =item $extraInfo A description of the items being iterated over.  Typically
                   1053: 'student'.
                   1054: 
1.279     bisitz   1055: =item $step (optional) counter step. Will be set to default 1 if ommited. step must be greater than 0 or empty.
1.276     bisitz   1056: 
1.23      matthew  1057: =back
                   1058: 
                   1059: Returns: none
                   1060: 
                   1061: 
1.309     raeburn  1062: =item &Close_PrgWin()
1.23      matthew  1063: 
                   1064: Closes the progress window.
                   1065: 
                   1066: Inputs:
                   1067: 
                   1068: =over 4 
                   1069: 
                   1070: =item $r Apache request
                   1071: 
                   1072: =item $prog_state Pointer to the data structure returned by Create_PrgWin
                   1073: 
                   1074: =back
                   1075: 
                   1076: Returns: none
                   1077: 
                   1078: =back
                   1079: 
                   1080: =cut
                   1081: 
                   1082: ########################################################
                   1083: ########################################################
                   1084: 
1.51      albertel 1085: 
1.7       stredwic 1086: # Create progress
                   1087: sub Create_PrgWin {
1.358.2.14  raeburn  1088:     my ($r,$number_to_do,$preamble)=@_;
1.49      albertel 1089:     my %prog_state;
1.16      albertel 1090:     $prog_state{'done'}=0;
1.23      matthew  1091:     $prog_state{'firststart'}=&Time::HiRes::time();
                   1092:     $prog_state{'laststart'}=&Time::HiRes::time();
1.16      albertel 1093:     $prog_state{'max'}=$number_to_do;
1.358.2.14  raeburn  1094:     &Apache::loncommon::LCprogressbar($r,$prog_state{'max'},$preamble); 
1.14      albertel 1095:     return %prog_state;
1.7       stredwic 1096: }
                   1097: 
                   1098: # update progress
                   1099: sub Update_PrgWin {
1.14      albertel 1100:     my ($r,$prog_state,$displayString)=@_;
1.358.2.14  raeburn  1101:     &Apache::loncommon::LCprogressbarUpdate($r,undef,$displayString,$$prog_state{'max'});
1.23      matthew  1102:     $$prog_state{'laststart'}=&Time::HiRes::time();
1.14      albertel 1103: }
                   1104: 
                   1105: # increment progress state
                   1106: sub Increment_PrgWin {
1.275     bisitz   1107:     my ($r,$prog_state,$extraInfo,$step)=@_;
1.279     bisitz   1108:     $step = $step > 0 ? $step : 1;
1.275     bisitz   1109:     $$prog_state{'done'} += $step;
                   1110: 
                   1111:     # Catch (max modulo step) <> 0
                   1112:     my $current = $$prog_state{'done'};
                   1113:     my $last = ($$prog_state{'max'} - $current);
                   1114:     if ($last <= 0) {
                   1115:         $last = 1;
                   1116:         $current = $$prog_state{'max'};
                   1117:     }
                   1118: 
1.23      matthew  1119:     my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
1.275     bisitz   1120:         $current * $last;
1.16      albertel 1121:     $time_est = int($time_est);
1.80      matthew  1122:     #
                   1123:     my $min = int($time_est/60);
                   1124:     my $sec = $time_est % 60;
1.278     bisitz   1125: 
1.23      matthew  1126:     my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
                   1127:     if ($lasttime > 9) {
                   1128:         $lasttime = int($lasttime);
                   1129:     } elsif ($lasttime < 0.01) {
                   1130:         $lasttime = 0;
                   1131:     } else {
                   1132:         $lasttime = sprintf("%3.2f",$lasttime);
                   1133:     }
1.278     bisitz   1134: 
                   1135:     $sec = 0 if ($min >= 10); # Don't show seconds if remaining time >= 10 min.
                   1136:     $sec = 1 if ( ($min == 0) && ($sec == 0) ); # Little cheating: pretend to have 1 second remaining instead of 0 to have something to display
                   1137: 
                   1138:     my $timeinfo =
                   1139:         &mt('[_1]/[_2]:'
                   1140:            .' [quant,_3,minute,minutes,] [quant,_4,second ,seconds ,]remaining'
                   1141:            .' ([quant,_5,second] for '.$extraInfo.')',
                   1142:             $current,
                   1143:             $$prog_state{'max'},
                   1144:             $min,
                   1145:             $sec,
                   1146:             $lasttime);
1.297     www      1147:     my $percent=0;
                   1148:     if ($$prog_state{'max'}) {
                   1149:        $percent=int(100.*$current/$$prog_state{'max'});
                   1150:     }
1.358.2.14  raeburn  1151:     &Apache::loncommon::LCprogressbarUpdate($r,$percent,$timeinfo,$$prog_state{'max'});
1.23      matthew  1152:     $$prog_state{'laststart'}=&Time::HiRes::time();
1.7       stredwic 1153: }
                   1154: 
                   1155: # close Progress Line
                   1156: sub Close_PrgWin {
1.14      albertel 1157:     my ($r,$prog_state)=@_;
1.297     www      1158:     &Apache::loncommon::LCprogressbarClose($r);
1.48      albertel 1159:     undef(%$prog_state);
                   1160: }
                   1161: 
1.326     foxr     1162: 
1.34      www      1163: # ------------------------------------------------------- Puts directory header
                   1164: 
                   1165: sub crumbs {
1.358.2.4  raeburn  1166:     my ($uri,$target,$prefix,$form,$skiplast,$onclick)=@_;
1.303     www      1167: # You cannot crumbnify uploaded or adm resources
1.358.2.10  raeburn  1168:     if ($uri=~/^\/*(uploaded|adm)\//) { return &mt('(Internal Course/Community Content)'); }
1.100     raeburn  1169:     if ($target) {
                   1170:         $target = ' target="'.
                   1171:                   &Apache::loncommon::escape_single($target).'"';
                   1172:     }
1.252     bisitz   1173:     my $output='<span class="LC_filename">';
                   1174:     $output.=$prefix.'/';
1.249     raeburn  1175:     if (($env{'user.adv'}) || ($env{'user.author'})) {
1.252     bisitz   1176:         my $path=$prefix.'/';
                   1177:         foreach my $dir (split('/',$uri)) {
1.99      matthew  1178:             if (! $dir) { next; }
                   1179:             $path .= $dir;
1.252     bisitz   1180:             if ($path eq $uri) {
                   1181:                 if ($skiplast) {
                   1182:                     $output.=$dir;
1.132     www      1183:                     last;
1.252     bisitz   1184:                 } 
                   1185:             } else {
                   1186:                 $path.='/'; 
                   1187:             }
1.358.2.10  raeburn  1188:             if ($path eq '/res/') {
                   1189:                 unless (&Apache::lonnet::allowed('bre',$path)) {
                   1190:                     $output.="$dir/";
                   1191:                     next;
                   1192:                 }
                   1193:             }
1.157     albertel 1194:             my $href_path = &HTML::Entities::encode($path,'<>&"');
1.252     bisitz   1195:             &Apache::loncommon::inhibit_menu_check(\$href_path);
                   1196:             if ($form) {
                   1197:                 my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
1.358.2.4  raeburn  1198:                 $output.=qq{<a href="$href"$onclick$target>$dir</a>/};
1.252     bisitz   1199:             } else {
1.358.2.4  raeburn  1200:                 $output.=qq{<a href="$href_path"$onclick$target>$dir</a>/};
1.252     bisitz   1201:             }
                   1202:         }
1.35      www      1203:     } else {
1.252     bisitz   1204:         foreach my $dir (split('/',$uri)) {
1.149     albertel 1205:             if (! $dir) { next; }
1.252     bisitz   1206:             $output.=$dir.'/';
                   1207:         }
1.34      www      1208:     }
1.149     albertel 1209:     if ($uri !~ m|/$|) { $output=~s|/$||; }
1.252     bisitz   1210:     $output.='</span>';
                   1211: 
1.304     foxr     1212: 
1.252     bisitz   1213:     return $output;
1.34      www      1214: }
                   1215: 
1.85      www      1216: # --------------------- A function that generates a window for the spellchecker
                   1217: 
                   1218: sub spellheader {
1.123     albertel 1219:     my $start_page=
                   1220: 	&Apache::loncommon::start_page('Speller Suggestions',undef,
1.140     albertel 1221: 				       {'only_body'   => 1,
                   1222: 					'js_ready'    => 1,
                   1223: 					'bgcolor'     => '#DDDDDD',
                   1224: 				        'add_entries' => {
                   1225: 					    'onload' => 
                   1226:                                                'document.forms.spellcheckform.submit()',
                   1227:                                              }
                   1228: 				        });
1.123     albertel 1229:     my $end_page=
                   1230: 	&Apache::loncommon::end_page({'js_ready'  => 1}); 
                   1231: 
1.105     www      1232:     my $nothing=&javascript_nothing();
1.85      www      1233:     return (<<ENDCHECK);
                   1234: <script type="text/javascript"> 
1.218     bisitz   1235: // <![CDATA[
1.92      albertel 1236: //<!-- BEGIN LON-CAPA Internal
1.85      www      1237: var checkwin;
                   1238: 
1.140     albertel 1239: function spellcheckerwindow(string) {
                   1240:     var esc_string = string.replace(/\"/g,'&quot;');
1.105     www      1241:     checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1.154     albertel 1242:     checkwin.document.writeln('$start_page<form name="spellcheckform" action="/adm/spellcheck" method="post"><input type="hidden" name="text" value="'+esc_string+'" /><\\/form>$end_page');
1.85      www      1243:     checkwin.document.close();
                   1244: }
1.92      albertel 1245: // END LON-CAPA Internal -->
1.218     bisitz   1246: // ]]>
1.85      www      1247: </script>
                   1248: ENDCHECK
                   1249: }
                   1250: 
                   1251: # ---------------------------------- Generate link to spell checker for a field
                   1252: 
                   1253: sub spelllink {
                   1254:     my ($form,$field)=@_;
                   1255:     my $linktext=&mt('Check Spelling');
                   1256:     return (<<ENDLINK);
1.140     albertel 1257: <a href="javascript:if (typeof(document.$form.onsubmit)!='undefined') { if (document.$form.onsubmit!=null) { document.$form.onsubmit();}};spellcheckerwindow(this.document.forms.$form.$field.value);">$linktext</a>
1.85      www      1258: ENDLINK
                   1259: }
                   1260: 
1.281     raeburn  1261: # ------------------------------------------------- Output headers for CKEditor
1.124     albertel 1262: 
1.52      www      1263: sub htmlareaheaders {
1.255     faziophi 1264: 	my $s="";
1.260     faziophi 1265: 	if (&htmlareabrowser()) {
1.255     faziophi 1266: 		$s.=(<<ENDEDITOR);
                   1267: <script type="text/javascript" src="/ckeditor/ckeditor.js"></script>
                   1268: ENDEDITOR
                   1269: 	}
                   1270:     $s.=(<<ENDJQUERY);
1.358.2.14  raeburn  1271: <script type="text/javascript" src="/adm/jQuery/js/jquery-3.2.1.min.js"></script>
                   1272: <script type="text/javascript" src="/adm/jQuery/js/jquery-ui-1.12.1.custom.min.js"></script>
                   1273: <link rel="stylesheet" type="text/css" href="/adm/jQuery/css/smoothness/jquery-ui-1.12.1.custom.min.css" />
1.301     foxr     1274: <script type="text/javascript" src="/adm/jpicker/js/jpicker-1.1.6.min.js" >
                   1275: </script>
                   1276: <link rel="stylesheet" type="text/css" href="/adm/jpicker/css/jPicker-1.1.6.min.css" />
1.356     raeburn  1277: <script type="text/javascript" src="/adm/countdown/js/jquery.countdown.min.js"></script>
1.310     raeburn  1278: <link rel="stylesheet" type="text/css" href="/adm/countdown/css/jquery.countdown.css" />
1.320     foxr     1279: 
1.323     foxr     1280: <script type="text/javascript" src="/adm/spellchecker/js/jquery.spellchecker.min.js"></script>
1.320     foxr     1281: <link rel="stylesheet" type="text/css" href="/adm/spellchecker/css/spellchecker.css" />
1.349     raeburn  1282: <script type="text/javascript" src="/adm/nicescroll/jquery.nicescroll.min.js"></script>
1.320     foxr     1283: 
1.255     faziophi 1284: ENDJQUERY
                   1285: 	return $s;
1.52      www      1286: }
                   1287: 
1.76      www      1288: # ----------------------------------------------------------------- Preferences
                   1289: 
1.167     albertel 1290: # ------------------------------------------------- lang to use in html editor
                   1291: sub htmlarea_lang {
                   1292:     my $lang='en';
                   1293:     if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
                   1294: 	$lang=&mt('htmlarea_lang');
                   1295:     }
                   1296:     return $lang;
                   1297: }
                   1298: 
1.326     foxr     1299: # return javacsript to activate elements of .colorchooser with jpicker:
                   1300: # Caller is responsible for enclosing this in <script> tags:
                   1301: #
                   1302: sub color_picker {
                   1303:     return '
                   1304: $(document).ready(function(){
                   1305:     $.fn.jPicker.defaults.images.clientPath="/adm/jpicker/images/";
                   1306:     $(".colorchooser").jPicker({window: { position: {x: "screenCenter", y: "bottom"}}});
                   1307: });';
                   1308: }
                   1309: 
1.72      www      1310: # ----------------------------------------- Script to activate only some fields
                   1311: 
                   1312: sub htmlareaselectactive {
1.281     raeburn  1313:     my ($args) = @_; 
1.76      www      1314:     unless (&htmlareabrowser()) { return ''; }
1.262     raeburn  1315:     my $output='<script type="text/javascript" defer="defer">'."\n"
1.347     raeburn  1316:               .'// <![CDATA['."\n"
                   1317:               .'//<!-- BEGIN LON-CAPA Internal'."\n";
1.167     albertel 1318:     my $lang = &htmlarea_lang();
1.281     raeburn  1319:     my $fullpage = 'false';
1.282     raeburn  1320:     my ($dragmath_prefix,$dragmath_helpicon,$dragmath_whitespace);
1.281     raeburn  1321:     if (ref($args) eq 'HASH') {
                   1322:         if (exists($args->{'lang'})) {
                   1323:             if ($args->{'lang'} ne '') {
                   1324:                 $lang = $args->{'lang'};
                   1325:             }
                   1326:         }
                   1327:         if (exists($args->{'fullpage'})) { 
                   1328:             if ($args->{'fullpage'} eq 'true') {
                   1329:                 $fullpage = $args->{'fullpage'};
                   1330:             }
                   1331:         }
                   1332:         if (exists($args->{'dragmath'})) {
                   1333:             if ($args->{'dragmath'} ne '') {
                   1334:                 $dragmath_prefix = $args->{'dragmath'};
1.282     raeburn  1335:                 $dragmath_helpicon=&Apache::loncommon::lonhttpdurl("/adm/help/help.png");
                   1336:                 $dragmath_whitespace=&Apache::loncommon::lonhttpdurl("/adm/lonIcons/transparent1x1.gif");
1.281     raeburn  1337:             }
                   1338:         }
                   1339:     }
1.343     bisitz   1340: 
                   1341:     my %lt = &Apache::lonlocal::texthash(
                   1342:               'plain'       => 'Plain text',
                   1343:               'rich'        => 'Rich formatting',
                   1344:               'plain_title' => 'Disable rich text formatting and edit in plain text',
                   1345:               'rich_title'  => 'Enable rich text formatting (bold, italic, etc.)',
                   1346:           );
                   1347: 
1.255     faziophi 1348:     $output.='
                   1349:     
                   1350:     function containsBlockHtml(id) {
1.281     raeburn  1351: 		var re = $("#"+id).html().search(/(?:\&lt\;|\<)(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)[\s]*((?:[\/]*[\s]*(?:\&gt\;|\>)|(?:\&gt\;|\>)[\s\S]*(?:\&lt\;|\<)\/[\s]*\1[\s]*\(?:\&gt\;|\>))/im);
1.255     faziophi 1352:     	return (re >= 0);
                   1353:     }
                   1354:     
                   1355:     function startRichEditor(id) {
1.358.2.7  raeburn  1356:         // fix character entities inside <m>
                   1357:         // NOTE: this is not fixing characters inside <parse>
                   1358:         // NOTE: < and > inside <chem> should fix automatically because there should not be a letter after <.
                   1359:         var ta = document.getElementById(id);
                   1360:         var value = ta.value;
                   1361:         var in_m = false; // in the m element
                   1362:         var in_text = false; // in the text inside the m element
                   1363:         var im = -1; // position of <m>
                   1364:         var it = -1; // position of the text inside
                   1365:         for (var i=0; i<value.length; i++) {
                   1366:             if (value.substr(i, 2) == "<m") {
                   1367:                 // ignore previous <m> if found twice
                   1368:                 in_m = true;
                   1369:                 in_text = false;
                   1370:                 im = i;
                   1371:                 it = -1;
                   1372:             } else if (in_m) {
                   1373:                 if (!in_text) {
                   1374:                     if (value.charAt(i) == ">") {
                   1375:                         in_text = true;
                   1376:                         it = i+1;
                   1377:                     }
                   1378:                 } else if (value.substr(i, 4) == "</m>") {
                   1379:                     in_m = false;
                   1380:                     var text = value.substr(it, i-it);
                   1381:                     var l1 = text.length;
                   1382:                     text = text.replace(/</g, "&lt;");
                   1383:                     text = text.replace(/>/g, "&gt;");
                   1384:                     var l2 = text.length;
                   1385:                     value = value.substr(0, it) + text + "</m>" + value.substr(i+4);
                   1386:                     i = i + (l2-l1);
                   1387:                 }
                   1388:             }
                   1389:         }
                   1390:         ta.value = value;
1.255     faziophi 1391:     	CKEDITOR.replace(id, 
                   1392:     		{
1.281     raeburn  1393:     			customConfig: "/ckeditor/loncapaconfig.js",
                   1394:                         language : "'.$lang.'",
                   1395:                         fullPage : '.$fullpage.',
1.255     faziophi 1396:     		}
                   1397:     	);
                   1398:     }
                   1399:     
                   1400:     function destroyRichEditor(id) {
                   1401:     	CKEDITOR.instances[id].destroy();
1.358.2.7  raeburn  1402:         // replace character entities &lt; and &gt; in <m> and <chem>
                   1403:         // and "&amp;fctname(" by "&fctname("
                   1404:         // and the quotes inside functions: "&fct(1, &quot;a&quot;)" -> "&fct(1, "a")"
                   1405:         var ta = document.getElementById(id);
                   1406:         var value = ta.value;
                   1407:         var in_element = false; // in the m or chem element
                   1408:         var tagname = ""; // m or chem
                   1409:         var in_text = false; // in the text inside the element
                   1410:         var im = -1; // position of start tag
                   1411:         var it = -1; // position of the text inside
                   1412:         for (var i=0; i<value.length; i++) {
                   1413:             if (value.substr(i, 2) == "<m" || value.substr(i, 5) == "<chem") {
                   1414:                 // ignore previous tags if found twice
                   1415:                 in_element = true;
                   1416:                 if (value.substr(i, 2) == "<m")
                   1417:                     tagname = "m";
                   1418:                 else
                   1419:                     tagname = "chem";
                   1420:                 in_text = false;
                   1421:                 im = i;
                   1422:                 it = -1;
                   1423:             } else if (in_element) {
                   1424:                 if (!in_text) {
                   1425:                     if (value.charAt(i) == ">") {
                   1426:                         in_text = true;
                   1427:                         it = i+1;
                   1428:                     }
                   1429:                 } else if (value.substr(i, 3+tagname.length) == "</"+tagname+">") {
                   1430:                     in_element = false;
                   1431:                     var text = value.substr(it, i-it);
                   1432:                     var l1 = text.length;
                   1433:                     text = text.replace(/&lt;/g, "<");
                   1434:                     text = text.replace(/&gt;/g, ">");
                   1435:                     var l2 = text.length;
                   1436:                     value = value.substr(0, it) + text + value.substr(i);
                   1437:                     i = i + (l2-l1);
                   1438:                 }
                   1439:             }
                   1440:         }
                   1441:         // fix function names
                   1442:         value = value.replace(/&amp;([a-zA-Z_]+)\(/g, "&$1(");
                   1443:         // fix quotes in functions
                   1444:         var pos_next_fct = value.search(/&[a-zA-Z_]+\(/);
                   1445:         var depth = 0;
                   1446:         for (var i=0; i<value.length; i++) {
                   1447:             if (i == pos_next_fct) {
                   1448:                 depth++;
                   1449:                 var sub = value.substring(i+1);
                   1450:                 var pos2 = sub.search(/&[a-zA-Z_]+\(/);
                   1451:                 if (pos2 == -1)
                   1452:                     pos_next_fct = -1;
                   1453:                 else
                   1454:                     pos_next_fct = i + 1 + pos2;
                   1455:             } else if (depth > 0) {
                   1456:                 if (value.charAt(i) == ")")
                   1457:                     depth--;
                   1458:                 else if (value.substr(i, 6) == "&quot;")
                   1459:                     value = value.substr(0, i) + "\"" + value.substr(i+6);
                   1460:             }
                   1461:         }
                   1462:         // replace the text value
                   1463:         ta.value = value;
1.72      www      1464:     }
1.255     faziophi 1465:     
                   1466:     function editorHandler(event) {
                   1467:     	var rawid = $(this).attr("id");
1.281     raeburn  1468:     	var id = new RegExp("LC_rt_(.*)").exec(rawid)[1];
1.255     faziophi 1469:     	event.preventDefault();
1.281     raeburn  1470:     	var rt_enabled  = $(this).hasClass("LC_enable_rt");
                   1471:         if (rt_enabled) {
1.255     faziophi 1472:     		startRichEditor(id);
1.343     bisitz   1473: 			$("#LC_rt_"+id).html("<b>&laquo; '.$lt{'plain'}.'</b>");
                   1474: 			$("#LC_rt_"+id).attr("title", "'.$lt{'plain_title'}.'");
1.255     faziophi 1475: 			$("#LC_rt_"+id).addClass("LC_disable_rt");
                   1476: 			$("#LC_rt_"+id).removeClass("LC_enable_rt");
                   1477:     	} else {
                   1478: 			destroyRichEditor(id);
1.343     bisitz   1479: 			$("#LC_rt_"+id).html("<b>'.$lt{'rich'}.' &raquo;</b>");
                   1480: 			$("#LC_rt_"+id).attr("title", "'.$lt{'rich_title'}.'");
1.255     faziophi 1481: 			$("#LC_rt_"+id).addClass("LC_enable_rt");
                   1482: 			$("#LC_rt_"+id).removeClass("LC_disable_rt");
1.281     raeburn  1483: 	}';
                   1484:     if ($dragmath_prefix ne '') {
                   1485:         $output .= "\n                 var visible = '';
                   1486:                                        if (rt_enabled) {
                   1487:                                            visible = 'none';
                   1488:                                        }
                   1489:                                        editmath_visibility(id,visible);\n";
                   1490:     }
                   1491:     $output .= '
                   1492:     }
1.255     faziophi 1493:     $(document).ready(function(){
                   1494: 		$(".LC_richAlwaysOn").each(function() {
                   1495: 			startRichEditor($(this).attr("id"));
                   1496: 		});
                   1497: 		$(".LC_richDetectHtml").each(function() {
                   1498: 			var id = $(this).attr("id");
1.281     raeburn  1499:                         var rt_enabled = containsBlockHtml(id);
                   1500: 			if(rt_enabled) {
1.343     bisitz   1501: 				$(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>&laquo; '.$lt{'plain'}.'</b></a></div>");				
1.255     faziophi 1502: 				startRichEditor(id);
1.281     raeburn  1503: 				$("#LC_rt_"+id).click(editorHandler);
1.255     faziophi 1504: 			}
                   1505: 			else {
1.343     bisitz   1506: 				$(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' &raquo;</b></a></div>");
1.255     faziophi 1507: 				$("#LC_rt_"+id).click(editorHandler);
1.281     raeburn  1508: 			}';
                   1509:     if ($dragmath_prefix ne '') {
                   1510:         $output .= "\n                 var visible = '';
                   1511:                                        if (rt_enabled) {
                   1512:                                            visible = 'none';
                   1513:                                        }
                   1514:                                        editmath_visibility(id,visible);\n";
                   1515:     }
                   1516:     $output .= '
1.255     faziophi 1517: 		});
                   1518: 		$(".LC_richDefaultOn").each(function() {
                   1519: 			var id = $(this).attr("id");
1.343     bisitz   1520: 			$(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'plain_title'}.'\" class=\"LC_disable_rt\"><b>&laquo; '.$lt{'plain'}.'</b></a></div>");				
1.255     faziophi 1521: 			startRichEditor(id);
                   1522: 			$("#LC_rt_"+id).click(editorHandler);
                   1523: 		});
                   1524: 		$(".LC_richDefaultOff").each(function() {
                   1525: 			var id = $(this).attr("id");
1.343     bisitz   1526: 			$(this).before("<div><a href=\"#\" id=\"LC_rt_"+id+"\" title=\"'.$lt{'rich_title'}.'\" class=\"LC_enable_rt\"><b>'.$lt{'rich'}.' &raquo;</b></a></div>");
1.281     raeburn  1527: 			$("#LC_rt_"+id).click(editorHandler);
1.255     faziophi 1528: 		});
1.301     foxr     1529: 
1.304     foxr     1530: 
1.302     foxr     1531: 	});
1.281     raeburn  1532: ';
1.326     foxr     1533:     $output .= &color_picker;
                   1534: 
1.306     foxr     1535:     # Code to put a due date countdown in 'duedatecountdown' span.
                   1536:     # This is currently located in the breadcrumb headers.
                   1537:     # note that the dueDateLayout is internatinoalized below.
                   1538:     # Here document is used to support the substitution into the javascript below.
1.307     foxr     1539:     # ..which unforunately necessitates escaping the $'s in the javascript.
                   1540:     # There are several times of importance
                   1541:     #
                   1542:     # serverDueDate -  The absolute time at which the problem expires.
                   1543:     # serverTime    -  The server's time when the problem finished computing.
                   1544:     # clientTime    -  The client's time...as close to serverTime as possible.
                   1545:     #                  The clientTime will be slightly later due to
                   1546:     #                  1. The latency between problem computation and 
                   1547:     #                     the first network action.
                   1548:     #                  2. The time required between the page load-start and the actual
                   1549:     #                     initial javascript execution that got clientTime.
                   1550:     # These are used as follows:
                   1551:     #   The difference between clientTime and serverTime are used to 
                   1552:     #   correct for differences in clock settings between the browser's system and the
                   1553:     #   server's.
                   1554:     #
                   1555:     #   The difference between clientTime and the time at which the ready() method
                   1556:     #   starts executing is used to estimate latencies for page load and submission.
                   1557:     #   Since this is an estimate, it is doubled.  The latency estimate + one minute
                   1558:     #   is used to determine when the countdown timer turns red to warn the user
                   1559:     #   to think about submitting.
1.306     foxr     1560: 
1.338     raeburn  1561:     my $dueDateLayout = &mt('Due in: {dn} {dl} {hnn}{sep}{mnn}{sep}{snn} [_1]',
                   1562:                             "<span id='submitearly'></span>");
1.314     raeburn  1563:     my $early = '- <b>'.&mt('Submit Early').'</b>';
                   1564:     my $pastdue = '- <b>'.&mt('Past Due').'</b>';
1.306     foxr     1565:     $output .= <<JAVASCRIPT;
1.307     foxr     1566: 
                   1567:     var documentReadyTime;
                   1568: 
1.306     foxr     1569: \$(document).ready(function() {
                   1570:    if (typeof(dueDate) != "undefined") {
1.307     foxr     1571:        documentReadyTime = (new Date()).getTime();
1.306     foxr     1572:       \$("#duedatecountdown").countdown({until: dueDate, compact: true, 
                   1573:          layout: "$dueDateLayout",
                   1574:          onTick: function (periods) {
1.307     foxr     1575: 	    var latencyEstimate = (documentReadyTime - clientTime) * 2;
1.314     raeburn  1576:             if(\$.countdown.periodsToSeconds(periods) < (300 + latencyEstimate)) {
                   1577:                \$("#submitearly").html("$early");
                   1578:                if (\$.countdown.periodsToSeconds(periods) < 1) {
                   1579:                     \$("#submitearly").html("$pastdue");
                   1580:                }
                   1581:             }
1.307     foxr     1582:             if(\$.countdown.periodsToSeconds(periods) < (60 + latencyEstimate)) {
1.306     foxr     1583:                \$(this).css("color", "red");   //Highlight last minute.
                   1584:             }
                   1585:          }
                   1586:       });
                   1587:    }
                   1588: });
1.322     foxr     1589: 
                   1590:     /* This code describes the spellcheck options that will be used for
                   1591:        items with class 'spellchecked'.  It is necessary for those objects'
                   1592:        to explicitly request checking (e.g. onblur is a nice event for that).
                   1593:      */
                   1594:      \$(document).ready(function() {
                   1595: 	 \$(".spellchecked").spellchecker({
                   1596: 	   url: "/ajax/spellcheck",
                   1597: 	   lang: "en",                      
                   1598: 	   engine: "pspell",
                   1599: 	   suggestionBoxPosition: "below",
                   1600: 	   innerDocument: true
                   1601: 					  });
                   1602: 	 \$("textarea.spellchecked").spellchecker({
                   1603: 	   url: "/ajax/spellcheck",
                   1604: 	   lang: "en",                      
                   1605: 	   engine: "pspell",
                   1606: 	   suggestionBoxPosition: "below",
                   1607: 	   innerDocument: true
                   1608: 					  });
                   1609: 
                   1610: 			});
                   1611: 
1.325     foxr     1612:     /* the muli colored editor can generate spellcheck with language 'none'
                   1613:        to disable spellcheck as well
                   1614:     */
1.324     foxr     1615:     function doSpellcheck(element, lang) {
1.325     foxr     1616: 	if (lang != 'none') {
                   1617:  	    \$(element).spellchecker('option', {lang: lang});
                   1618: 	    \$(element).spellchecker('check');
                   1619:         }
1.324     foxr     1620:     }
                   1621: 
1.322     foxr     1622: 
1.306     foxr     1623: JAVASCRIPT
1.281     raeburn  1624:     if ($dragmath_prefix ne '') {
                   1625:         $output .= '
                   1626: 
                   1627:      function editmath_visibility(id,value) {
                   1628: 
                   1629:          if ((id == "") || (id == null)) {
                   1630:              return;
                   1631:          }
                   1632:          var mathid = "'.$dragmath_prefix.'_"+id;
                   1633:          mathele = document.getElementById(mathid);
                   1634:          if (mathele == null) {
                   1635:              return;
                   1636:          }
                   1637:          mathele.style.display = value;
1.282     raeburn  1638:          var mathhelpicon = "'.$dragmath_prefix.'helpicon'.'_"+id;
                   1639:          mathhelpiconele = document.getElementById(mathhelpicon);
                   1640:          if (mathhelpiconele == null) {
                   1641:              return;
                   1642:          }
                   1643:          if (value == "none") {
                   1644:              mathhelpiconele.src = "'.$dragmath_whitespace.'";
                   1645:          } else {
                   1646:              mathhelpiconele.src = "'.$dragmath_helpicon.'";
                   1647:          }
1.281     raeburn  1648:      }
                   1649: ';
                   1650: 
                   1651:     }
1.218     bisitz   1652:     $output.="\nwindow.status='Activated Editfields';\n"
1.347     raeburn  1653:             .'// END LON-CAPA Internal -->'."\n"
1.230     bisitz   1654:             .'// ]]>'."\n"
1.281     raeburn  1655:             .'</script>';
1.72      www      1656:     return $output;
                   1657: }
                   1658: 
1.61      www      1659: # --------------------------------------------------------------------- Blocked
                   1660: 
                   1661: sub htmlareablocked {
1.104     albertel 1662:     unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1.71      www      1663:     return 0;
1.52      www      1664: }
                   1665: 
                   1666: # ---------------------------------------- Browser capable of running HTMLArea?
                   1667: 
                   1668: sub htmlareabrowser {
                   1669:     return 1;
                   1670: }
1.53      matthew  1671: 
1.287     www      1672: #
                   1673: # Should the "return to content" link be shown?
                   1674: #
                   1675: 
                   1676: sub show_return_link {
1.289     www      1677: 
                   1678:     unless ($env{'request.course.id'}) { return 0; }
                   1679:     if ($env{'request.noversionuri'}=~m{^/priv/} ||
1.318     raeburn  1680:         $env{'request.uri'}=~m{^/priv/}) { return 1; }
1.332     raeburn  1681:     return if ($env{'request.noversionuri'} eq '/adm/supplemental');
1.289     www      1682: 
1.287     www      1683:     if (($env{'request.noversionuri'} =~ m{^/adm/(viewclasslist|navmaps)($|\?)})
                   1684:         || ($env{'request.noversionuri'} =~ m{^/adm/.*/aboutme($|\?)})) {
                   1685: 
                   1686:         return if ($env{'form.register'});
                   1687:     }
                   1688:     return (($env{'request.noversionuri'}=~m{^/(res|public)/} &&
                   1689:              $env{'request.symb'} eq '')
                   1690:             ||
                   1691:             ($env{'request.noversionuri'}=~ m{^/cgi-bin/printout.pl})
                   1692:             ||
                   1693:             (($env{'request.noversionuri'}=~/^\/adm\//) &&
                   1694:              ($env{'request.noversionuri'}!~/^\/adm\/wrapper\//) &&
                   1695:              ($env{'request.noversionuri'}!~
                   1696:               m{^/adm/.*/(smppg|bulletinboard)($|\?)})
                   1697:            ));
                   1698: }
                   1699: 
                   1700: 
1.304     foxr     1701: ##
                   1702: #   Set the dueDate variable...note this is done in the timezone
                   1703: #   of the browser.
                   1704: #
                   1705: # @param epoch relative time at which the problem is due.
                   1706: #
                   1707: # @return the javascript fragment to set the date:
                   1708: #
                   1709: sub set_due_date {
                   1710:     my $dueStamp = shift;
                   1711:     my $duems    = $dueStamp * 1000; # Javascript Date object needs ms not seconds.
                   1712: 
                   1713:     my $now = time()*1000;
                   1714: 
                   1715:     # This slightly obscure bit of javascript sets the dueDate variable
                   1716:     # to the time in the browser at which the problem was due.  
                   1717:     # The code should correct for gross differences between the server
                   1718:     # and client's time setting
                   1719: 
1.315     raeburn  1720:      return <<"END";
                   1721: 
                   1722: <script type="text/javascript">
1.304     foxr     1723:   //<![CDATA[
                   1724: var serverDueDate = $duems;
                   1725: var serverTime    = $now;
                   1726: var clientTime    = (new Date()).getTime();
                   1727: var dueDate       = new Date(serverDueDate + (clientTime - serverTime));
                   1728: 
                   1729:   //]]>
                   1730: </script>
                   1731: 
1.315     raeburn  1732: END
1.307     foxr     1733: }
                   1734: ##
                   1735: # Sets the time at which the problem finished computing.
                   1736: # This just updates the serverTime and clientTime variables above.
                   1737: # Calling this in e.g. end_problem provides a better estimate of the
                   1738: # difference beetween the server and client time setting as 
                   1739: # the difference contains less of the latency/problem compute time.
                   1740: #
                   1741: sub set_compute_end_time {
                   1742: 
                   1743:     my $now = time()*1000;	# Javascript times are in ms.
1.316     raeburn  1744:     return <<"END";
                   1745: 
                   1746: <script type="text/javascript">
1.307     foxr     1747: //<![CDATA[
                   1748: serverTime = $now;
                   1749: clientTime = (new Date()).getTime();
                   1750: //]]>
                   1751: </script>
                   1752: 
1.316     raeburn  1753: END
1.304     foxr     1754: }
                   1755: 
1.53      matthew  1756: ############################################################
                   1757: ############################################################
                   1758: 
                   1759: =pod
                   1760: 
1.309     raeburn  1761: =item &breadcrumbs()
1.53      matthew  1762: 
                   1763: Compiles the previously registered breadcrumbs into an series of links.
                   1764: Additionally supports a 'component', which will be displayed on the
1.223     droeschl 1765: right side of the breadcrumbs enclosing div (without a link).
1.53      matthew  1766: A link to help for the component will be included if one is specified.
                   1767: 
                   1768: All inputs can be undef without problems.
                   1769: 
1.223     droeschl 1770: Inputs: $component (the text on the right side of the breadcrumbs trail),
1.358.2.2  raeburn  1771:         $component_help (the help item filename (without .tex extension).
1.63      albertel 1772:         $menulink (boolean, controls whether to include a link to /adm/menu)
1.138     albertel 1773:         $helplink (if 'nohelp' don't include the orange help link)
                   1774:         $css_class (optional name for the class to apply to the table for CSS)
1.197     raeburn  1775:         $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
                   1776:            when including the text on the right.
1.358.2.2  raeburn  1777:         $CourseBreadcrumbs (optional flag, 1 if &breadcrumbs called from &docs_breadcrumbs,
                   1778:            because breadcrumbs are being)
                   1779:         $topic_help (optional help item to be displayed on right side of the breadcrumbs 
                   1780:            row, using loncommon::help_open_topic() to generate the link.
                   1781:         $topic_help_text (text to include in the link in the optional help item 
                   1782:            on the right side of the breadcrumbs row.
                   1783: 
1.53      matthew  1784: Returns a string containing breadcrumbs for the current page.
                   1785: 
1.309     raeburn  1786: =item &clear_breadcrumbs()
1.53      matthew  1787: 
                   1788: Clears the previously stored breadcrumbs.
                   1789: 
1.309     raeburn  1790: =item &add_breadcrumb()
1.53      matthew  1791: 
                   1792: Pushes a breadcrumb on the stack of crumbs.
                   1793: 
                   1794: input: $breadcrumb, a hash reference.  The keys 'href','title', and 'text'
                   1795: are required.  If present the keys 'faq' and 'bug' will be used to provide
1.156     albertel 1796: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title' 
                   1797: and 'text' values won't be sent through &mt()
1.53      matthew  1798: 
                   1799: returns: nothing    
                   1800: 
                   1801: =cut
                   1802: 
                   1803: ############################################################
                   1804: ############################################################
                   1805: {
                   1806:     my @Crumbs;
1.242     droeschl 1807:     my %tools = ();
1.57      matthew  1808:     
1.53      matthew  1809:     sub breadcrumbs {
1.314     raeburn  1810:         my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt, 
1.358.2.2  raeburn  1811:             $CourseBreadcrumbs,$topic_help,$topic_help_text) = @_;
1.53      matthew  1812:         #
1.215     droeschl 1813:         $css_class ||= 'LC_breadcrumbs';
1.205     amueller 1814: 
1.57      matthew  1815:         # Make the faq and bug data cascade
1.223     droeschl 1816:         my $faq  = '';
                   1817:         my $bug  = '';
                   1818:         my $help = '';
1.215     droeschl 1819:         # Crumb Symbol
1.223     droeschl 1820:         my $crumbsymbol = '&raquo;';
1.60      www      1821:         # The last breadcrumb does not have a link, so handle it separately.
1.53      matthew  1822:         my $last = pop(@Crumbs);
1.57      matthew  1823:         #
1.70      matthew  1824:         # The first one should be the course or a menu link
1.215     droeschl 1825:         if (!defined($menulink)) { $menulink=1; }
1.70      matthew  1826:         if ($menulink) {
                   1827:             my $description = 'Menu';
1.172     raeburn  1828:             my $no_mt_descr = 0;
1.269     raeburn  1829:             if ((exists($env{'request.course.id'})) && 
                   1830:                 ($env{'request.course.id'} ne '') && 
                   1831:                 ($env{'course.'.$env{'request.course.id'}.'.description'} ne '')) {
1.70      matthew  1832:                 $description = 
1.104     albertel 1833:                     $env{'course.'.$env{'request.course.id'}.'.description'};
1.172     raeburn  1834:                 $no_mt_descr = 1;
1.330     raeburn  1835:                 if ($env{'request.noversionuri'} =~ 
1.358.2.11  raeburn  1836:                     m{^/?public/($match_domain)/($match_courseid)/syllabus$}) {
1.330     raeburn  1837:                     unless (($env{'course.'.$env{'request.course.id'}.'.domain'} eq $1) &&
1.332     raeburn  1838:                             ($env{'course.'.$env{'request.course.id'}.'.num'} eq $2)) {
1.330     raeburn  1839:                         $description = 'Menu';
                   1840:                         $no_mt_descr = 0;
                   1841:                     }
                   1842:                 }
1.70      matthew  1843:             }
1.215     droeschl 1844:             $menulink =  {  href   =>'/adm/menu',
                   1845:                             title  =>'Go to main menu',
                   1846:                             target =>'_top',
                   1847:                             text   =>$description,
                   1848:                             no_mt  =>$no_mt_descr, };
                   1849:             if($last) {
                   1850:                 #$last set, so we have some crumbs
                   1851:                 unshift(@Crumbs,$menulink);
                   1852:             } else {
                   1853:                 #only menulink crumb present
                   1854:                 $last = $menulink;
                   1855:             }
1.53      matthew  1856:         }
1.287     www      1857:         my $links;
1.330     raeburn  1858:         if ((&show_return_link) && (!$CourseBreadcrumbs) && (ref($last) eq 'HASH')) {
1.299     raeburn  1859:             my $alttext = &mt('Go Back');
1.355     raeburn  1860:             my $hashref = { href => '/adm/flip?postdata=return:',
                   1861:                             title => &mt('Back to most recent content resource'),
                   1862:                             class => 'LC_menubuttons_link',
                   1863:                           };
                   1864:             if ($env{'request.noversionuri'} eq '/adm/searchcat') {
                   1865:                 $hashref->{'target'} = '_top'; 
                   1866:             }
1.317     raeburn  1867:             $links=&htmltag( 'a','<img src="/res/adm/pages/tolastloc.png" alt="'.$alttext.'" class="LC_icon" />',
1.355     raeburn  1868:                              $hashref);
1.299     raeburn  1869:             $links=&htmltag('li',$links);
1.287     www      1870:         }
                   1871:         $links.= join "", 
1.261     droeschl 1872:              map {
                   1873:                  $faq  = $_->{'faq'}  if (exists($_->{'faq'}));
                   1874:                  $bug  = $_->{'bug'}  if (exists($_->{'bug'}));
                   1875:                  $help = $_->{'help'} if (exists($_->{'help'}));
                   1876: 
1.287     www      1877:                  my $result = $_->{no_mt} ? $_->{text} : &mt($_->{text});
1.261     droeschl 1878: 
                   1879:                  if ($_->{href}){
1.287     www      1880:                      $result = &htmltag( 'a', $result, 
1.261     droeschl 1881:                        { href   => $_->{href},
1.287     www      1882:                          title  => $_->{no_mt} ? $_->{title} : &mt($_->{title}),
1.261     droeschl 1883:                          target => $_->{target}, });
                   1884:                  }
                   1885: 
1.287     www      1886:                  $result = &htmltag( 'li', "$result $crumbsymbol");
1.261     droeschl 1887:              } @Crumbs;
1.223     droeschl 1888: 
                   1889:         #should the last Element be translated?
1.261     droeschl 1890: 
                   1891:         my $lasttext = $last->{'no_mt'} ? $last->{'text'} 
                   1892:                      : mt( $last->{'text'} );
                   1893: 
1.274     droeschl 1894:         # last breadcrumb is the first order heading of a page
                   1895:         # for course breadcrumbs it's just bold
1.304     foxr     1896: 
1.330     raeburn  1897:         if ($lasttext ne '') {
                   1898:             $links .= &htmltag( 'li', htmltag($CourseBreadcrumbs ? 'b' : 'h1',
                   1899:                     $lasttext), {title => $lasttext});
                   1900:         }
1.223     droeschl 1901: 
1.54      matthew  1902:         my $icons = '';
1.223     droeschl 1903:         $faq  = $last->{'faq'}  if (exists($last->{'faq'}));
                   1904:         $bug  = $last->{'bug'}  if (exists($last->{'bug'}));
1.106     www      1905:         $help = $last->{'help'} if (exists($last->{'help'}));
                   1906:         $component_help=($component_help?$component_help:$help);
1.145     albertel 1907: #        if ($faq ne '') {
                   1908: #            $icons .= &Apache::loncommon::help_open_faq($faq);
                   1909: #        }
1.79      raeburn  1910: #        if ($bug ne '') {
                   1911: #            $icons .= &Apache::loncommon::help_open_bug($bug);
                   1912: #        }
1.223     droeschl 1913:         if ($faq ne '' || $component_help ne '' || $bug ne '') {
                   1914:             $icons .= &Apache::loncommon::help_open_menu($component,
                   1915:                                                          $component_help,
                   1916:                                                          $faq,$bug);
                   1917:         }
1.358.2.2  raeburn  1918:         if ($topic_help && $topic_help_text) {
                   1919:            $icons .= ' '.&Apache::loncommon::help_open_topic($topic_help,&mt($topic_help_text),'',
                   1920:                                                              undef,600);
                   1921:         }
1.54      matthew  1922:         #
1.304     foxr     1923: 
1.205     amueller 1924: 		
1.330     raeburn  1925:         if ($links ne '') {
                   1926:             unless ($CourseBreadcrumbs) {
                   1927:                 $links = &htmltag('ol',  $links, { id => "LC_MenuBreadcrumbs"   });
                   1928:             } else {
                   1929:                 $links = &htmltag('ul',  $links, { class => "LC_CourseBreadcrumbs" });
                   1930:             }
1.53      matthew  1931:         }
1.223     droeschl 1932: 
1.304     foxr     1933: 
1.358.2.2  raeburn  1934:         if (($component) || ($topic_help && $topic_help_text)) {
1.287     www      1935:             $links = &htmltag('span', 
1.223     droeschl 1936:                              ( $no_mt ? $component : mt($component) ).
                   1937:                              ( $icons ? $icons : '' ),
                   1938:                              { class => 'LC_breadcrumbs_component' } )
1.304     foxr     1939:                              .$links 
                   1940: ;
1.223     droeschl 1941:         }
1.339     raeburn  1942:         my $nav_and_tools = 0;
                   1943:         foreach my $item ('navigation','tools') {
                   1944:             if (ref($tools{$item}) eq 'ARRAY') {
                   1945:                 $nav_and_tools += scalar(@{$tools{$item}})
                   1946:             }
                   1947:         }
                   1948:         if (($links ne '') || ($nav_and_tools)) {
                   1949:             &render_tools(\$links);
                   1950:             $links = &htmltag('div', $links, 
                   1951:                               { id => "LC_breadcrumbs" }) unless ($CourseBreadcrumbs) ;
                   1952:         }
                   1953:         my $adv_tools = 0;
                   1954:         if (ref($tools{'advtools'}) eq 'ARRAY') {
                   1955:             $adv_tools = scalar(@{$tools{'advtools'}});
                   1956:         }
                   1957:         if (($links ne '') || ($adv_tools)) {
                   1958:             &render_advtools(\$links);
                   1959:         }
1.223     droeschl 1960: 
1.53      matthew  1961:         # Return the @Crumbs stack to what we started with
                   1962:         push(@Crumbs,$last);
                   1963:         shift(@Crumbs);
1.304     foxr     1964: 
                   1965: 
1.223     droeschl 1966:         # Return the breadcrumb's line
1.304     foxr     1967: 
                   1968:     
                   1969: 
1.223     droeschl 1970:         return "$links";
1.53      matthew  1971:     }
                   1972: 
                   1973:     sub clear_breadcrumbs {
                   1974:         undef(@Crumbs);
1.242     droeschl 1975:         undef(%tools);
1.53      matthew  1976:     }
                   1977: 
                   1978:     sub add_breadcrumb {
1.232     raeburn  1979:         push(@Crumbs,@_);
1.53      matthew  1980:     }
1.242     droeschl 1981:     
1.309     raeburn  1982: =item &add_breadcrumb_tool($category, $html)
1.261     droeschl 1983: 
                   1984: Adds $html to $category of the breadcrumb toolbar container.
                   1985: 
                   1986: $html is usually a link to a page that invokes a function on the currently 
                   1987: displayed data (e.g. print when viewing a problem)
                   1988: 
                   1989: Currently there are 3 possible values for $category: 
                   1990: 
                   1991: =over 
                   1992: 
                   1993: =item navigation 
                   1994: left of breadcrumbs line
                   1995: 
                   1996: =item tools 
1.314     raeburn  1997: remaining items in right of breadcrumbs line
1.261     droeschl 1998: 
                   1999: =item advtools 
                   2000: advanced tools shown in a separate box below breadcrumbs line 
                   2001: 
                   2002: =back
                   2003:  
                   2004: returns: nothing
                   2005: 
                   2006: =cut
1.242     droeschl 2007: 
                   2008:     sub add_breadcrumb_tool {
1.261     droeschl 2009:         my ($category, @html) = @_;
                   2010:         return unless @html;
1.285     raeburn  2011:         if (!keys(%tools)) { 
1.261     droeschl 2012:             %tools = ( navigation => [], tools => [], advtools => []);
1.242     droeschl 2013:         }
1.261     droeschl 2014: 
                   2015:         #this cleans data received from lonmenu::innerregister
                   2016:         @html = grep {defined $_ && $_ ne ''} @html;
                   2017:         for (@html) { 
                   2018:             s/align="(right|left)"//; 
1.288     www      2019: #            s/<span.*?\/span>// if $category ne 'advtools'; 
1.261     droeschl 2020:         } 
                   2021: 
                   2022:         push @{$tools{$category}}, @html;
1.242     droeschl 2023:     }
                   2024: 
1.309     raeburn  2025: =item &clear_breadcrumb_tools()
1.261     droeschl 2026: 
                   2027: Clears the breadcrumb toolbar container.
                   2028: 
                   2029: returns: nothing
                   2030: 
                   2031: =cut
                   2032: 
1.245     droeschl 2033:     sub clear_breadcrumb_tools {
                   2034:         undef(%tools);
                   2035:     }
                   2036: 
1.358.2.6  raeburn  2037: =item &current_breadcrumb_tools()
                   2038: 
                   2039: returns: a hash containing the current breadcrumb tools.
                   2040: 
                   2041: =cut
                   2042: 
                   2043:     sub current_breadcrumb_tools {
                   2044:         return %tools;
                   2045:     }
                   2046: 
1.309     raeburn  2047: =item &render_tools(\$breadcrumbs)
1.261     droeschl 2048: 
                   2049: Creates html for breadcrumb tools (categories navigation and tools) and inserts 
                   2050: \$breadcrumbs at the correct position.
                   2051: 
                   2052: input: \$breadcrumbs - a reference to the string containing prepared 
                   2053: breadcrumbs.
                   2054: 
                   2055: returns: nothing
1.309     raeburn  2056: 
1.261     droeschl 2057: =cut
                   2058: 
                   2059: #TODO might split this in separate functions for each category
                   2060:     sub render_tools {
                   2061:         my ($breadcrumbs) = @_;
1.285     raeburn  2062:         return unless (keys(%tools));
1.261     droeschl 2063: 
                   2064:         my $navigation = list_from_array($tools{navigation}, 
                   2065:                    { listattr => { class=>"LC_breadcrumb_tools_navigation" } });
                   2066:         my $tools = list_from_array($tools{tools}, 
                   2067:                    { listattr => { class=>"LC_breadcrumb_tools_tools" } });
                   2068:         $$breadcrumbs = list_from_array([$navigation, $tools, $$breadcrumbs], 
                   2069:                    { listattr => { class=>'LC_breadcrumb_tools_outerlist' } });
                   2070:     }
                   2071: 
1.309     raeburn  2072: =pod
                   2073: 
                   2074: =item &render_advtools(\$breadcrumbs)
1.261     droeschl 2075: 
                   2076: Creates html for advanced tools (category advtools) and inserts \$breadcrumbs 
                   2077: at the correct position.
                   2078: 
                   2079: input: \$breadcrumbs - a reference to the string containing prepared 
                   2080: breadcrumbs (after render_tools call).
                   2081: 
                   2082: returns: nothing
1.309     raeburn  2083: 
1.261     droeschl 2084: =cut
                   2085: 
                   2086:     sub render_advtools {
                   2087:         my ($breadcrumbs) = @_;
                   2088:         return unless     (defined $tools{'advtools'}) 
                   2089:                       and (scalar(@{$tools{'advtools'}}) > 0);
                   2090: 
                   2091:         $$breadcrumbs .= Apache::loncommon::head_subbox(
                   2092:                             funclist_from_array($tools{'advtools'}) );
1.242     droeschl 2093:     }
1.53      matthew  2094: 
1.57      matthew  2095: } # End of scope for @Crumbs
1.53      matthew  2096: 
1.331     raeburn  2097: sub docs_breadcrumbs {
1.332     raeburn  2098:     my ($allowed,$crstype,$contenteditor,$title,$precleared)=@_;
1.342     raeburn  2099:     my ($folderpath,@folders,$supplementalflag);
1.340     raeburn  2100:     @folders = split('&',$env{'form.folderpath'});
1.342     raeburn  2101:     if ($env{'form.folderpath'} =~ /^supplemental/) {
                   2102:         $supplementalflag = 1;
                   2103:     }
1.331     raeburn  2104:     my $plain='';
1.336     raeburn  2105:     my $container = 'sequence';
1.331     raeburn  2106:     my ($randompick,$isencrypted,$ishidden,$is_random_order) = (-1,0,0,0);
1.332     raeburn  2107:     my @docs_crumbs;
1.331     raeburn  2108:     while (@folders) {
                   2109:         my $folder=shift(@folders);
                   2110:         my $foldername=shift(@folders);
                   2111:         if ($folderpath) {$folderpath.='&';}
                   2112:         $folderpath.=$folder.'&'.$foldername;
1.358.2.15! raeburn  2113:         my $url = $env{'request.use_absolute'};
1.331     raeburn  2114:         if ($allowed) {
1.358.2.15! raeburn  2115:             $url .= '/adm/coursedocs?folderpath=';
1.331     raeburn  2116:         } else {
1.358.2.15! raeburn  2117:             $url .= '/adm/supplemental?folderpath=';
1.331     raeburn  2118:         }
                   2119:         $url .= &escape($folderpath);
                   2120:         my $name=&unescape($foldername);
1.336     raeburn  2121: # each of randompick number, hidden, encrypted, random order, is_page 
                   2122: # are appended with ":"s to the foldername
                   2123:         $name=~s/\:(\d*)\:(\w*)\:(\w*):(\d*)\:?(\d*)$//;
1.342     raeburn  2124:         unless ($supplementalflag) {
                   2125:             if ($contenteditor) { 
                   2126:                 if ($1 ne '') {
                   2127:                     $randompick=$1;
                   2128:                 } else {
                   2129:                     $randompick=-1;
                   2130:                 }
                   2131:                 if ($2) { $ishidden=1; }
                   2132:                 if ($3) { $isencrypted=1; }
                   2133:                 if ($4 ne '') { $is_random_order = 1; }
                   2134:                 if ($5 == 1) {$container = 'page'; }
1.331     raeburn  2135:             }
                   2136:         }
                   2137:         if ($folder eq 'supplemental') {
1.345     raeburn  2138:             $name = &mt('Supplemental Content');
1.331     raeburn  2139:         }
                   2140:         if ($contenteditor) {
                   2141:             $plain.=$name.' &gt; ';
                   2142:         }
1.332     raeburn  2143:         push(@docs_crumbs,
1.331     raeburn  2144:                           {'href'  => $url,
                   2145:                            'title' => $name,
                   2146:                            'text'  => $name,
                   2147:                            'no_mt' => 1,
                   2148:                           });
                   2149:     }
1.333     raeburn  2150:     if ($title) {
                   2151:         push(@docs_crumbs,
                   2152:                           {'title' => $title,
                   2153:                            'text'  => $title,
                   2154:                            'no_mt' => 1,}
                   2155:                           );
                   2156:     }
1.332     raeburn  2157:     if (wantarray) {
                   2158:         unless ($precleared) {
                   2159:             &clear_breadcrumbs();
                   2160:         }
                   2161:         &add_breadcrumb(@docs_crumbs);
                   2162:         if ($contenteditor) {
                   2163:             $plain=~s/\&gt\;\s*$//;
                   2164:         }
                   2165:         my $menulink = 0;
                   2166:         if (!$allowed && !$contenteditor) {
                   2167:             $menulink = 1;
                   2168:         }
                   2169:         return (&breadcrumbs(undef,undef,$menulink,'nohelp',undef,undef,
                   2170:                              $contenteditor),
                   2171:                              $randompick,$ishidden,$isencrypted,$plain,
1.336     raeburn  2172:                              $is_random_order,$container);
1.331     raeburn  2173:     } else {
1.332     raeburn  2174:         return \@docs_crumbs;
1.331     raeburn  2175:     }
                   2176: }
                   2177: 
1.53      matthew  2178: ############################################################
                   2179: ############################################################
                   2180: 
1.112     raeburn  2181: # Nested table routines.
                   2182: #
                   2183: # Routines to display form items in a multi-row table with 2 columns.
                   2184: # Uses nested tables to divide form elements into segments.
                   2185: # For examples of use see loncom/interface/lonnotify.pm 
                   2186: #
                   2187: # Can be used in following order: ...
                   2188: # &start_pick_box()
                   2189: # row1
                   2190: # row2
                   2191: # row3   ... etc.
1.173     raeburn  2192: # &submit_row()
1.161     raeburn  2193: # &end_pick_box()
1.112     raeburn  2194: #
                   2195: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
                   2196: # &status_select_row and &email_default_row
                   2197: #
                   2198: # Can also be used in following order:
                   2199: #
                   2200: # &start_pick_box()
                   2201: # &row_title()
                   2202: # &row_closure()
                   2203: # &row_title()
                   2204: # &row_closure()  ... etc.
                   2205: # &submit_row()
                   2206: # &end_pick_box()
                   2207: #
                   2208: # In general a &submit_row() call should proceed the call to &end_pick_box(),
                   2209: # as this routine adds a button for form submission.
1.113     raeburn  2210: # &submit_row() does not require a &row_closure after it.
1.112     raeburn  2211: #  
                   2212: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
                   2213: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
                   2214: #
                   2215: # &row_title() adds a title in the left column for each segment.
                   2216: # &row_closure() closes a row with a 1-pixel wide black line.
                   2217: #
                   2218: # &role_select_row() provides a select box from which to choose 1 or more roles 
                   2219: # &course_select_row provides ways of picking groups of courses
                   2220: #    radio buttons: all, by category or by picking from a course picker pop-up
                   2221: #      note: by category option is only displayed if a domain has implemented 
                   2222: #                selection by year, semester, department, number etc.
                   2223: #
                   2224: # &status_select_row() provides a select box from which to choose 1 or more
                   2225: #  access types (current access, prior access, and future access)  
                   2226: #
                   2227: # &email_default_row() provides text boxes for default e-mail suffixes for
                   2228: #  different authentication types in a domain.
                   2229: #
                   2230: # &row_title() and &row_closure() are called internally by the &*_select_row
                   2231: # routines, but can also be called directly to start and end rows which have 
                   2232: # needs that are not accommodated by the *_select_row() routines.    
                   2233: 
1.193     bisitz   2234: { # Start: row_count block for pick_box
                   2235: my @row_count;
                   2236: 
1.112     raeburn  2237: sub start_pick_box {
1.313     raeburn  2238:     my ($css_class,$id) = @_;
1.142     albertel 2239:     if (defined($css_class)) {
                   2240: 	$css_class = 'class="'.$css_class.'"';
                   2241:     } else {
                   2242: 	$css_class= 'class="LC_pick_box"';
                   2243:     }
1.313     raeburn  2244:     my $table_id;
                   2245:     if (defined($id)) {
                   2246:         $table_id = ' id="'.$id.'"';
                   2247:     }
1.193     bisitz   2248:     unshift(@row_count,0);
1.112     raeburn  2249:     my $output = <<"END";
1.313     raeburn  2250:  <table $css_class $table_id>
1.112     raeburn  2251: END
                   2252:     return $output;
                   2253: }
                   2254: 
                   2255: sub end_pick_box {
1.193     bisitz   2256:     shift(@row_count);
1.112     raeburn  2257:     my $output = <<"END";
                   2258:        </table>
                   2259: END
                   2260:     return $output;
                   2261: }
                   2262: 
1.181     bisitz   2263: sub row_headline {
                   2264:     my $output = <<"END";
                   2265:            <tr><td colspan="2">
                   2266: END
                   2267:     return $output;
                   2268: }
                   2269: 
1.112     raeburn  2270: sub row_title {
1.243     amueller 2271:     my ($title,$css_title_class,$css_value_class, $css_value_furtherAttributes) = @_;
1.193     bisitz   2272:     $row_count[0]++;
                   2273:     my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
1.142     albertel 2274:     $css_title_class ||= 'LC_pick_box_title';
                   2275:     $css_title_class = 'class="'.$css_title_class.'"';
                   2276: 
                   2277:     $css_value_class ||= 'LC_pick_box_value';
                   2278: 
1.173     raeburn  2279:     if ($title ne '') {
                   2280:         $title .= ':';
                   2281:     }
1.112     raeburn  2282:     my $output = <<"ENDONE";
1.243     amueller 2283:            <tr class="LC_pick_box_row" $css_value_furtherAttributes> 
1.142     albertel 2284:             <td $css_title_class>
1.173     raeburn  2285: 	       $title
1.112     raeburn  2286:             </td>
1.193     bisitz   2287:             <td class="$css_value_class $css_class">
1.112     raeburn  2288: ENDONE
                   2289:     return $output;
                   2290: }
                   2291: 
                   2292: sub row_closure {
1.143     albertel 2293:     my ($no_separator) =@_;
1.113     raeburn  2294:     my $output = <<"ENDTWO";
1.112     raeburn  2295:             </td>
                   2296:            </tr>
1.143     albertel 2297: ENDTWO
                   2298:     if (!$no_separator) {
                   2299:         $output .= <<"ENDTWO";
1.112     raeburn  2300:            <tr>
1.143     albertel 2301:             <td colspan="2" class="LC_pick_box_separator">
1.112     raeburn  2302:             </td>
                   2303:            </tr>
                   2304: ENDTWO
1.143     albertel 2305:     }
1.112     raeburn  2306:     return $output;
                   2307: }
                   2308: 
1.193     bisitz   2309: } # End: row_count block for pick_box
                   2310: 
1.112     raeburn  2311: sub role_select_row {
1.147     raeburn  2312:     my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1.236     raeburn  2313:     my $crstype = 'Course';
                   2314:     if ($cdom ne '' && $cnum ne '') {
                   2315:         $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
                   2316:     }
1.116     raeburn  2317:     my $output;
                   2318:     if (defined($title)) {
1.142     albertel 2319:         $output = &row_title($title,$css_class);
1.116     raeburn  2320:     }
1.142     albertel 2321:     $output .= qq|
1.198     bisitz   2322:                                   <select name="roles" multiple="multiple">\n|;
1.113     raeburn  2323:     foreach my $role (@$roles) {
1.114     raeburn  2324:         my $plrole;
                   2325:         if ($role eq 'ow') {
                   2326:             $plrole = &mt('Course Owner');
1.147     raeburn  2327:         } elsif ($role eq 'cr') {
                   2328:             if ($show_separate_custom) {
                   2329:                 if ($cdom ne '' && $cnum ne '') {
                   2330:                     my %course_customroles = &course_custom_roles($cdom,$cnum);
                   2331:                     foreach my $crrole (sort(keys(%course_customroles))) {
                   2332:                         my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
                   2333:                         $output .= '  <option value="'.$crrole.'">'.$plcrrole.
                   2334:                                    '</option>';
                   2335:                     }
                   2336:                 }
                   2337:             } else {
                   2338:                 $plrole = &mt('Custom Role');
                   2339:             }
1.114     raeburn  2340:         } else {
1.236     raeburn  2341:             $plrole=&Apache::lonnet::plaintext($role,$crstype);
1.114     raeburn  2342:         }
1.147     raeburn  2343:         if (($role ne 'cr') || (!$show_separate_custom)) {
                   2344:             $output .= '  <option value="'.$role.'">'.$plrole.'</option>';
                   2345:         }
1.112     raeburn  2346:     }
1.142     albertel 2347:     $output .= qq|                </select>\n|;
1.116     raeburn  2348:     if (defined($title)) {
                   2349:         $output .= &row_closure();
                   2350:     }
1.112     raeburn  2351:     return $output;
                   2352: }
                   2353: 
                   2354: sub course_select_row {
1.142     albertel 2355:     my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
1.280     raeburn  2356: 	$css_class,$crstype,$standardnames) = @_;
1.142     albertel 2357:     my $output = &row_title($title,$css_class);
1.280     raeburn  2358:     $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames);
1.169     raeburn  2359:     $output .= &row_closure();
                   2360:     return $output;
                   2361: }
                   2362: 
                   2363: sub course_selection {
1.280     raeburn  2364:     my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype,$standardnames) = @_;
1.169     raeburn  2365:     my $output = qq|
1.142     albertel 2366: <script type="text/javascript">
1.218     bisitz   2367: // <![CDATA[
1.112     raeburn  2368:     function coursePick (formname) {
                   2369:         for  (var i=0; i<formname.coursepick.length; i++) {
1.114     raeburn  2370:             if (formname.coursepick[i].value == 'category') {
                   2371:                 courseSet('');
                   2372:             }
1.112     raeburn  2373:             if (!formname.coursepick[i].checked) {
                   2374:                 if (formname.coursepick[i].value == 'specific') {
                   2375:                     formname.coursetotal.value = 0;
                   2376:                     formname.courselist = '';
                   2377:                 }
                   2378:             }
                   2379:         }
                   2380:     }
1.114     raeburn  2381:     function setPick (formname) {
                   2382:         for  (var i=0; i<formname.coursepick.length; i++) {
                   2383:             if (formname.coursepick[i].value == 'category') {
                   2384:                 formname.coursepick[i].checked = true;
                   2385:             }
                   2386:             formname.coursetotal.value = 0;
                   2387:             formname.courselist = '';
                   2388:         }
                   2389:     }
1.218     bisitz   2390: // ]]>
1.112     raeburn  2391: </script>
                   2392:     |;
1.237     raeburn  2393: 
                   2394:     my ($allcrs,$pickspec);
                   2395:     if ($crstype eq 'Community') {
                   2396:         $allcrs = &mt('All communities');
                   2397:         $pickspec = &mt('Pick specific communities:');
                   2398:     } else {
                   2399:         $allcrs = &mt('All courses');
                   2400:         $pickspec = &mt('Pick specific course(s):');
                   2401:     }
                   2402: 
1.112     raeburn  2403:     my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1.237     raeburn  2404:                      ($formname,'pickcourse','pickdomain','coursedesc','',1,$crstype).'</b>';
1.341     bisitz   2405:         $output .= '<label><input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.$allcrs.'</label><br />';
1.112     raeburn  2406:     if ($totcodes > 0) {
                   2407:         my $numtitles = @$codetitles;
                   2408:         if ($numtitles > 0) {
1.358.2.3  raeburn  2409:             $output .= '<label><input type="radio" name="coursepick" value="category" onclick="coursePick(this.form);alert('."'".&html_escape(&mt('Choose categories, from left to right'))."'".')" />'.&mt('Pick courses by category:').'</label><br />';
1.112     raeburn  2410:             $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
1.280     raeburn  2411:                '<select name="'.$standardnames->[0].
1.351     bisitz   2412:                '" onchange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1.112     raeburn  2413:                ' <option value="-1" />Select'."\n";
                   2414:             my @items = ();
                   2415:             my @longitems = ();
                   2416:             if ($$idlist{$$codetitles[0]} =~ /","/) {
1.113     raeburn  2417:                 @items = split(/","/,$$idlist{$$codetitles[0]});
1.112     raeburn  2418:             } else {
                   2419:                 $items[0] = $$idlist{$$codetitles[0]};
                   2420:             }
                   2421:             if (defined($$idlist_titles{$$codetitles[0]})) {
                   2422:                 if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1.113     raeburn  2423:                     @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1.112     raeburn  2424:                 } else {
                   2425:                     $longitems[0] = $$idlist_titles{$$codetitles[0]};
                   2426:                 }
                   2427:                 for (my $i=0; $i<@longitems; $i++) {
                   2428:                     if ($longitems[$i] eq '') {
                   2429:                         $longitems[$i] = $items[$i];
                   2430:                     }
                   2431:                 }
                   2432:             } else {
                   2433:                 @longitems = @items;
                   2434:             }
                   2435:             for (my $i=0; $i<@items; $i++) {
                   2436:                 $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
                   2437:             }
                   2438:             $output .= '</select></td>';
                   2439:             for (my $i=1; $i<$numtitles; $i++) {
                   2440:                 $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
1.280     raeburn  2441:                           '<select name="'.$standardnames->[$i].
1.351     bisitz   2442:                           '" onchange="courseSet('."'$$codetitles[$i]'".')">'."\n".
1.112     raeburn  2443:                           '<option value="-1">&lt;-Pick '.$$codetitles[$i-1].'</option>'."\n".
                   2444:                           '</select>'."\n".
                   2445:                           '</td>';
                   2446:             }
                   2447:             $output .= '</tr></table><br />';
                   2448:         }
                   2449:     }
1.341     bisitz   2450:     $output .=
                   2451:         '<label><input type="radio" name="coursepick" value="specific"'
                   2452:        .' onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1','$crstype'".')" />'
                   2453:        .$pickspec.'</label>'
                   2454:        .' '.$courseform.'&nbsp;&nbsp;'
                   2455:        .&mt('[_1] selected.',
                   2456:                 '<input type="text" value="0" size="4" name="coursetotal" readonly="readonly" />'
                   2457:                .'<input type="hidden" name="courselist" value="" />')
                   2458:        .'<br />'."\n";
1.112     raeburn  2459:     return $output;
                   2460: }
                   2461: 
                   2462: sub status_select_row {
1.142     albertel 2463:     my ($types,$title,$css_class) = @_;
1.117     raeburn  2464:     my $output; 
                   2465:     if (defined($title)) {
1.142     albertel 2466:         $output = &row_title($title,$css_class,'LC_pick_box_select');
1.117     raeburn  2467:     }
1.142     albertel 2468:     $output .= qq|
1.198     bisitz   2469:                                     <select name="types" multiple="multiple">\n|;
1.113     raeburn  2470:     foreach my $status_type (sort(keys(%{$types}))) {
1.112     raeburn  2471:         $output .= '  <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
                   2472:     }
1.142     albertel 2473:     $output .= qq|                   </select>\n|; 
1.117     raeburn  2474:     if (defined($title)) {
                   2475:         $output .= &row_closure();
                   2476:     }
1.112     raeburn  2477:     return $output;
                   2478: }
                   2479: 
                   2480: sub email_default_row {
1.142     albertel 2481:     my ($authtypes,$title,$descrip,$css_class) = @_;
                   2482:     my $output = &row_title($title,$css_class);
                   2483:     $output .= $descrip.
                   2484: 	&Apache::loncommon::start_data_table().
                   2485: 	&Apache::loncommon::start_data_table_header_row().
                   2486: 	'<th>'.&mt('Authentication Method').'</th>'.
                   2487: 	'<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
                   2488: 	&Apache::loncommon::end_data_table_header_row();
1.112     raeburn  2489:     my $rownum = 0;
1.113     raeburn  2490:     foreach my $auth (sort(keys(%{$authtypes}))) {
1.112     raeburn  2491:         my ($userentry,$size);
                   2492:         if ($auth =~ /^krb/) {
                   2493:             $userentry = '';
                   2494:             $size = 25;
                   2495:         } else {
                   2496:             $userentry = 'username@';
                   2497:             $size = 15;
                   2498:         }
1.142     albertel 2499:         $output .= &Apache::loncommon::start_data_table_row().
                   2500: 	    '<td>  '.$$authtypes{$auth}.'</td>'.
                   2501: 	    '<td align="right">'.$userentry.
                   2502: 	    '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
                   2503: 	    &Apache::loncommon::end_data_table_row();
1.112     raeburn  2504:     }
1.142     albertel 2505:     $output .= &Apache::loncommon::end_data_table();
1.112     raeburn  2506:     $output .= &row_closure();
                   2507:     return $output;
                   2508: }
                   2509: 
                   2510: 
                   2511: sub submit_row {
1.142     albertel 2512:     my ($title,$cmd,$submit_text,$css_class) = @_;
                   2513:     my $output = &row_title($title,$css_class,'LC_pick_box_submit');
1.112     raeburn  2514:     $output .= qq|
                   2515:              <br />
                   2516:              <input type="hidden" name="command" value="$cmd" />
                   2517:              <input type="submit" value="$submit_text"/> &nbsp;
                   2518:              <br /><br />
1.142     albertel 2519:             \n|;
1.112     raeburn  2520:     return $output;
                   2521: }
1.1       stredwic 2522: 
1.147     raeburn  2523: sub course_custom_roles {
                   2524:     my ($cdom,$cnum) = @_;
                   2525:     my %returnhash=();
                   2526:     my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
                   2527:     foreach my $person (sort(keys(%coursepersonnel))) {
                   2528:         my ($role) = ($person =~ /^([^:]+):/);
                   2529:         my ($end,$start) = split(/:/,$coursepersonnel{$person});
                   2530:         if ($end == -1 && $start == -1) {
                   2531:             next;
                   2532:         }
                   2533:         if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
                   2534:             $returnhash{$role} ++;
                   2535:         }
                   2536:     }
                   2537:     return %returnhash;
                   2538: }
                   2539: 
                   2540: 
1.270     www      2541: sub resource_info_box {
1.300     raeburn  2542:    my ($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp)=@_;
1.270     www      2543:    my $return='';
1.300     raeburn  2544:    if ($stuvcurrent ne '') {
                   2545:        $return = '<div class="LC_left_float">';
                   2546:    }
1.270     www      2547:    if ($symb) {
1.300     raeburn  2548:        $return.=&Apache::loncommon::start_data_table();
1.271     www      2549:        my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb);
                   2550:        my $folder=&Apache::lonnet::gettitle($map);
                   2551:        $return.=&Apache::loncommon::start_data_table_row().
1.300     raeburn  2552:                     '<th align="left">'.&mt('Folder:').'</th><td>'.$folder.'</td>'.
1.271     www      2553:                     &Apache::loncommon::end_data_table_row();
1.270     www      2554:        unless ($onlyfolderflag) {
                   2555:           $return.=&Apache::loncommon::start_data_table_row().
1.300     raeburn  2556:                     '<th align="left">'.&mt('Resource:').'</th><td>'.&Apache::lonnet::gettitle($symb).'</td>'.
                   2557:                     &Apache::loncommon::end_data_table_row();
                   2558:        }
                   2559:        if ($stuvcurrent ne '') {
                   2560:            $return .= &Apache::loncommon::start_data_table_row().
                   2561:                     '<th align="left">'.&mt("Student's current version:").'</th><td>'.$stuvcurrent.'</td>'.
                   2562:                     &Apache::loncommon::end_data_table_row();
                   2563:        }
                   2564:        if ($stuvdisp ne '') {
                   2565:            $return .= &Apache::loncommon::start_data_table_row().
                   2566:                     '<th align="left">'.&mt("Student's version displayed:").'</th><td>'.$stuvdisp.'</td>'.
1.270     www      2567:                     &Apache::loncommon::end_data_table_row();
                   2568:        }
1.271     www      2569:        $return.=&Apache::loncommon::end_data_table();
1.270     www      2570:     } else {
                   2571:        $return='<p><span class="LC_error">'.&mt('No context provided.').'</span></p>';
                   2572:     }
1.300     raeburn  2573:     if ($stuvcurrent ne '') {
                   2574:         $return .= '</div>';
                   2575:     }
1.270     www      2576:     return $return;
                   2577: }
                   2578: 
1.348     raeburn  2579: # display_usage
                   2580: # 
                   2581: # Generates a div containing a block, filled to show percentage of current quota used
                   2582: #
                   2583: # Quotas available for user portfolios, group portfolios, authoring spaces, and course
                   2584: # content stored directly within a course (i.e., excluding published content).
                   2585: #
                   2586: 
                   2587: sub display_usage {
1.358.2.5  raeburn  2588:     my ($current_disk_usage,$disk_quota,$context) = @_;
                   2589:     my $usage = $current_disk_usage/1024;
                   2590:     my $quota = $disk_quota/1024;
1.348     raeburn  2591:     my $percent;
                   2592:     if ($disk_quota == 0) {
                   2593:         $percent = 100.0;
                   2594:     } else {
                   2595:         $percent = 100*($current_disk_usage/$disk_quota);
                   2596:     }
                   2597:     $usage = sprintf("%.2f",$usage);
                   2598:     $quota = sprintf("%.2f",$quota);
                   2599:     $percent = sprintf("%.0f",$percent);
                   2600:     my ($color,$cssclass);
                   2601:     if ($percent <= 60) {
                   2602:         $color = '#00A000';
                   2603:     } elsif ($percent > 60 && $percent < 90) {
                   2604:         $color = '#FFD300';
                   2605:         $cssclass = 'class="LC_warning"';
                   2606:     } elsif( $percent >= 90) {
                   2607:         $color = '#FF0000';
                   2608:         $cssclass = 'class="LC_error"';
                   2609:     }
                   2610:     my $prog_width = $percent;
                   2611:     if ($prog_width > 100) {
                   2612:         $prog_width = 100;
                   2613:     }
1.358.2.5  raeburn  2614:     my $display = 'block';
                   2615:     if ($context eq 'authoring') {
                   2616:         $display = 'inline';
                   2617:     }
1.348     raeburn  2618:     return '
1.358.2.5  raeburn  2619:   <div id="meter1" align="left" style="display:'.$display.'" '.$cssclass.'>'.&mt('Currently using [_1] of the [_2] available.',$usage.' MB <span style="font-weight:bold;">('.$percent.'%)</span>',$quota.' MB')."\n".
                   2620: '   <div id="meter2" style="display:block; margin-top:3px; margin-bottom:3px; margin-left:0px; margin-right:0px; width:400px; border:1px solid #000000; height:10px;">'."\n".
1.348     raeburn  2621: '    <div id="meter3" style="display:block; background-color:'.$color.'; width:'.$prog_width.'%; height:10px; color:#000000; margin:0px;"></div>'."\n".
                   2622: '   </div>'."\n".
                   2623: '  </div>';
                   2624: }
                   2625: 
1.119     raeburn  2626: ##############################################
                   2627: ##############################################
1.179     raeburn  2628: 
                   2629: # topic_bar
                   2630: #
1.248     wenzelju 2631: # Generates a div containing an (optional) number with a white background followed by a 
1.240     raeburn  2632: # title with a background color defined in the corresponding CSS: LC_topic_bar
                   2633: # Inputs:
1.248     wenzelju 2634: # 1. number to display.
                   2635: #    If input for number is empty only the title will be displayed. 
1.240     raeburn  2636: # 2. title text to display.
1.313     raeburn  2637: # 3. optional id for the <div>
1.240     raeburn  2638: # Outputs - a scalar containing html mark-up for the div.
                   2639: 
1.179     raeburn  2640: sub topic_bar {
1.313     raeburn  2641:     my ($num,$title,$id) = @_;
1.248     wenzelju 2642:     my $number = '';
                   2643:     if ($num ne '') {
                   2644:         $number = '<span>'.$num.'</span>';
1.239     amueller 2645:     }
1.313     raeburn  2646:     if ($id ne '') {
                   2647:         $id = 'id="'.$id.'"';
                   2648:     }
                   2649:     return '<div class="LC_topic_bar" '.$id.'>'.$number.$title.'</div>';
1.179     raeburn  2650: }
                   2651: 
                   2652: ##############################################
                   2653: ##############################################
1.119     raeburn  2654: # echo_form_input
                   2655: #
                   2656: # Generates html markup to add form elements from the referrer page
                   2657: # as hidden form elements (values encoded) in the new page.
                   2658: #
                   2659: # Intended to support two types of use 
                   2660: # (a) to allow backing up to earlier pages in a multi-page 
                   2661: # form submission process using a breadcrumb trail.
                   2662: #
                   2663: # (b) to allow the current page to be reloaded with form elements
                   2664: # set on previous page to remain unchanged.  An example would
                   2665: # be where the a page containing a dynamically-built table of data is 
                   2666: # is to be redisplayed, with only the sort order of the data changed. 
                   2667: #  
                   2668: # Inputs:
                   2669: # 1. Reference to array of form elements in the submitted form on 
                   2670: # the referrer page which are to be excluded from the echoed elements.
                   2671: #
                   2672: # 2. Reference to array of regular expressions, which if matched in the  
                   2673: # name of the form element n the referrer page will be omitted from echo. 
                   2674: #
                   2675: # Outputs: A scalar containing the html markup for the echoed form
                   2676: # elements (all as hidden elements, with values encoded). 
                   2677: 
                   2678: 
                   2679: sub echo_form_input {
                   2680:     my ($excluded,$regexps) = @_;
                   2681:     my $output = '';
                   2682:     foreach my $key (keys(%env)) {
                   2683:         if ($key =~ /^form\.(.+)$/) {
                   2684:             my $name = $1;
                   2685:             my $match = 0;
1.285     raeburn  2686:             if (ref($excluded) eq 'ARRAY') {    
                   2687:                 next if (grep(/^\Q$name\E$/,@{$excluded}));
                   2688:             }
                   2689:             if (ref($regexps) eq 'ARRAY') {
                   2690:                 if (@{$regexps} > 0) {
                   2691:                     foreach my $regexp (@{$regexps}) {
                   2692:                         if ($name =~ /$regexp/) {
                   2693:                             $match = 1;
                   2694:                             last;
1.119     raeburn  2695:                         }
                   2696:                     }
                   2697:                 }
1.285     raeburn  2698:             }
                   2699:             next if ($match);
                   2700:             if (ref($env{$key}) eq 'ARRAY') {
                   2701:                 foreach my $value (@{$env{$key}}) {
                   2702:                     $value = &HTML::Entities::encode($value,'<>&"');
                   2703:                     $output .= '<input type="hidden" name="'.$name.
                   2704:                                '" value="'.$value.'" />'."\n";
1.119     raeburn  2705:                 }
1.285     raeburn  2706:             } else {
                   2707:                 my $value = &HTML::Entities::encode($env{$key},'<>&"');
                   2708:                 $output .= '<input type="hidden" name="'.$name.
                   2709:                            '" value="'.$value.'" />'."\n";
1.119     raeburn  2710:             }
                   2711:         }
                   2712:     }
                   2713:     return $output;
                   2714: }
                   2715: 
                   2716: ##############################################
                   2717: ##############################################
                   2718: # set_form_elements
                   2719: #
                   2720: # Generates javascript to set form elements to values based on
                   2721: # corresponding values for the same form elements when the page was
                   2722: # previously submitted.
                   2723: #     
                   2724: # Last submission values are read from hidden form elements in referring 
                   2725: # page which have the same name, i.e., generated by &echo_form_input(). 
                   2726: #
                   2727: # Intended to be called by onload event.
                   2728: #
1.121     raeburn  2729: # Inputs:
                   2730: # (a) Reference to hash of echoed form elements to be set.
1.119     raeburn  2731: #
                   2732: # In the hash, keys are the form element names, and the values are the
                   2733: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
                   2734: # hidden).
1.121     raeburn  2735: #
                   2736: # (b) Optional reference to hash of stored elements to be set.
                   2737: #
                   2738: # If the page being displayed is a page which permits modification of
                   2739: # previously stored data, e.g., the first page in a multi-page submission,
                   2740: # then if stored is supplied, form elements will be set to the last stored
                   2741: # values.  If user supplied values are also available for the same elements
                   2742: # these will replace the stored values. 
                   2743: #        
1.119     raeburn  2744: # Output:
                   2745: #  
                   2746: # javascript function - set_form_elements() which sets form elements,
                   2747: # expects an argument: formname - the name of the form according to 
                   2748: # the DOM, e.g., document.compose
                   2749: 
                   2750: sub set_form_elements {
1.121     raeburn  2751:     my ($elements,$stored) = @_;
                   2752:     my %values;
1.119     raeburn  2753:     my $output .= 'function setFormElements(courseForm) {
1.121     raeburn  2754: ';
                   2755:     if (defined($stored)) {
                   2756:         foreach my $name (keys(%{$stored})) {
                   2757:             if (exists($$elements{$name})) {
                   2758:                 if (ref($$stored{$name}) eq 'ARRAY') {
                   2759:                     $values{$name} = $$stored{$name};
                   2760:                 } else {
                   2761:                     @{$values{$name}} = ($$stored{$name});
                   2762:                 }
                   2763:             }
                   2764:         }
                   2765:     }
                   2766: 
1.119     raeburn  2767:     foreach my $key (keys(%env)) {
                   2768:         if ($key =~ /^form\.(.+)$/) {
                   2769:             my $name = $1;
                   2770:             if (exists($$elements{$name})) {
1.121     raeburn  2771:                 @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
                   2772:             }
                   2773:         }
                   2774:     }
                   2775: 
                   2776:     foreach my $name (keys(%values)) {
                   2777:         for (my $i=0; $i<@{$values{$name}}; $i++) {
                   2778:             $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
                   2779:             $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
                   2780:             $values{$name}[$i] =~ s/"/\\"/g;
                   2781:         }
1.234     raeburn  2782:         if (($$elements{$name} eq 'text') || ($$elements{$name} eq 'hidden')) {
1.121     raeburn  2783:             my $numvalues = @{$values{$name}};
                   2784:             if ($numvalues > 1) {
                   2785:                 my $valuestring = join('","',@{$values{$name}});
                   2786:                 $output .= qq|
1.119     raeburn  2787:   var textvalues = new Array ("$valuestring");
1.147     raeburn  2788:   var total = courseForm.elements['$name'].length;
1.119     raeburn  2789:   if (total > $numvalues) {
                   2790:       total = $numvalues;
                   2791:   }    
                   2792:   for (var i=0; i<total; i++) {
1.147     raeburn  2793:       courseForm.elements['$name']\[i].value = textvalues[i];
1.119     raeburn  2794:   }
                   2795: |;
1.121     raeburn  2796:             } else {
                   2797:                 $output .= qq|
1.147     raeburn  2798:   courseForm.elements['$name'].value = "$values{$name}[0]";
1.119     raeburn  2799: |;
1.121     raeburn  2800:             }
                   2801:         } else {
                   2802:             $output .=  qq|
1.147     raeburn  2803:   var elementLength = courseForm.elements['$name'].length;
1.119     raeburn  2804:   if (elementLength==undefined) {
                   2805: |;
1.121     raeburn  2806:             foreach my $value (@{$values{$name}}) {
                   2807:                 if ($$elements{$name} eq 'selectbox') {
                   2808:                     $output .=  qq|
1.147     raeburn  2809:       if (courseForm.elements['$name'].options[0].value == "$value") {
                   2810:           courseForm.elements['$name'].options[0].selected = true;
1.119     raeburn  2811:       }|;
1.121     raeburn  2812:                 } elsif (($$elements{$name} eq 'radio') ||
                   2813:                          ($$elements{$name} eq 'checkbox')) {
                   2814:                     $output .= qq|
1.147     raeburn  2815:       if (courseForm.elements['$name'].value == "$value") {
1.148     albertel 2816:           courseForm.elements['$name'].checked = true;
1.234     raeburn  2817:       } else {
                   2818:           courseForm.elements['$name'].checked = false;
1.119     raeburn  2819:       }|;
1.121     raeburn  2820:                 }
                   2821:             }
                   2822:             $output .= qq|
1.119     raeburn  2823:   }
                   2824:   else {
1.147     raeburn  2825:       for (var i=0; i<courseForm.elements['$name'].length; i++) {
1.119     raeburn  2826: |;
1.121     raeburn  2827:             if ($$elements{$name} eq 'selectbox') {
                   2828:                 $output .=  qq|
1.147     raeburn  2829:           courseForm.elements['$name'].options[i].selected = false;|;
1.121     raeburn  2830:             } elsif (($$elements{$name} eq 'radio') || 
                   2831:                      ($$elements{$name} eq 'checkbox')) {
                   2832:                 $output .= qq|
1.147     raeburn  2833:           courseForm.elements['$name']\[i].checked = false;|; 
1.121     raeburn  2834:             }
                   2835:             $output .= qq|
1.119     raeburn  2836:       }
1.147     raeburn  2837:       for (var j=0; j<courseForm.elements['$name'].length; j++) {
1.119     raeburn  2838: |;
1.121     raeburn  2839:             foreach my $value (@{$values{$name}}) {
                   2840:                 if ($$elements{$name} eq 'selectbox') {
                   2841:                     $output .=  qq|
1.147     raeburn  2842:           if (courseForm.elements['$name'].options[j].value == "$value") {
                   2843:               courseForm.elements['$name'].options[j].selected = true;
1.119     raeburn  2844:           }|;
1.121     raeburn  2845:                 } elsif (($$elements{$name} eq 'radio') ||
                   2846:                          ($$elements{$name} eq 'checkbox')) { 
                   2847:                       $output .= qq|
1.147     raeburn  2848:           if (courseForm.elements['$name']\[j].value == "$value") {
                   2849:               courseForm.elements['$name']\[j].checked = true;
1.119     raeburn  2850:           }|;
1.121     raeburn  2851:                 }
                   2852:             }
                   2853:             $output .= qq|
1.119     raeburn  2854:       }
                   2855:   }
                   2856: |;
                   2857:         }
                   2858:     }
                   2859:     $output .= "
1.235     raeburn  2860:     return;
1.119     raeburn  2861: }\n";
                   2862:     return $output;
                   2863: }
                   2864: 
1.158     raeburn  2865: ##############################################
                   2866: ##############################################
                   2867: 
1.291     raeburn  2868: sub file_submissionchk_js {
                   2869:     my ($turninpaths,$multiples) = @_;
1.358.2.3  raeburn  2870:     my $overwritewarn = &mt('File(s) you uploaded for your submission will overwrite existing file(s) submitted for this item')."\n".
1.291     raeburn  2871:                       &mt('Continue submission and overwrite the file(s)?');
1.358.2.3  raeburn  2872:     &js_escape(\$overwritewarn);
                   2873:     my $delfilewarn = &mt('You have indicated you wish to remove some files previously included in your submission.')."\n".
1.291     raeburn  2874:                       &mt('Continue submission with these files removed?');
1.358.2.3  raeburn  2875:     &js_escape(\$delfilewarn);
1.292     raeburn  2876:     my ($turninpathtext,$multtext,$arrayindexofjs);
1.291     raeburn  2877:     if (ref($turninpaths) eq 'HASH') {
                   2878:         foreach my $key (sort(keys(%{$turninpaths}))) {
                   2879:             $turninpathtext .= "    if (prefix == '$key') {\n".
                   2880:                                "        return '$turninpaths->{$key}';\n".
                   2881:                                "    }\n";
                   2882:         }
                   2883:     }
                   2884:     $turninpathtext .= "    return '';\n";
                   2885:     if (ref($multiples) eq 'HASH') {
                   2886:         foreach my $key (sort(keys(%{$multiples}))) {
                   2887:             $multtext .= "    if (prefix == '$key') {\n".
                   2888:                          "        return '$multiples->{$key}';\n".
                   2889:                          "    }\n";
                   2890:         }
                   2891:     }
                   2892:     $multtext .= "    return '';\n";
1.292     raeburn  2893: 
1.293     raeburn  2894:     $arrayindexofjs = &Apache::loncommon::javascript_array_indexof();
1.291     raeburn  2895:     return <<"ENDSCRIPT";
                   2896: <script type="text/javascript">
                   2897: // <![CDATA[
                   2898: 
                   2899: function file_submission_check(formname,path,multiresp) {
                   2900:     var elemnum = formname.elements.length;
                   2901:     if (elemnum == 0) {
                   2902:         return true;
                   2903:     }
                   2904:     var alloverwrites = [];
                   2905:     var alldelconfirm = [];
                   2906:     var result = [];
                   2907:     var submitter;
                   2908:     var subprefix;
                   2909:     var allsub = getIndexByName(formname,'all_submit');
                   2910:     if (allsub == -1) {
                   2911:         var idx = getIndexByName(formname,'submitted');
                   2912:         if (idx != -1) {
                   2913:             var subval = String(formname.elements[idx].value);
                   2914:             submitter = subval.replace(/^part_/,'');
                   2915:             result = overwritten_check(formname,path,multiresp,submitter);
                   2916:             alloverwrites.push.apply(alloverwrites,result['overwrite']);
                   2917:             alldelconfirm.push.apply(alldelconfirm,result['delete']);
                   2918:         }
                   2919:     } else {
                   2920:         if (formname.elements[allsub].type == 'submit') {
                   2921:             var partsub = /^\\d+\\.\\d+_submit_.+\$/;
                   2922:             var allprefixes = [];
                   2923:             var allparts = [];
                   2924:             for (var i=0; i<formname.elements.length; i++) {
                   2925:                 if (formname.elements[i].type == 'submit') {
                   2926:                     var elemname = formname.elements[i].name;
                   2927:                     var subname = String(elemname);
                   2928:                     var savesub = String(elemname);
                   2929:                     if (partsub.test(subname)) {
                   2930:                         var prefix = subname.replace(/_submit_.+\$/,'');
                   2931:                         if (allprefixes.indexOf(prefix) == -1) {
                   2932:                             allprefixes.push(prefix);
                   2933:                             allparts[prefix] = [];
                   2934:                         }
                   2935:                         var part = savesub.replace(/^\\d+\\.\\d+_submit_/,'');
                   2936:                         allparts[prefix].push(part);
                   2937:                     }
                   2938:                 }
                   2939:             }
                   2940:             for (var k=0; k<allprefixes.length; k++) {
                   2941:                 var idx = getIndexByName(formname,allprefixes[k]+'_submitted');
                   2942:                 if (idx > -1) {
                   2943:                     if (formname.elements[idx].value != 'yes') {
                   2944:                         submitterval = formname.elements[idx].value;
                   2945:                         submitter = submitterval.replace(/^part_/,'');
                   2946:                         subprefix = allprefixes[k];
                   2947:                         result = overwritten_check(formname,path,multiresp,submitter,subprefix);
                   2948:                         alloverwrites.push.apply(alloverwrites,result['overwrite']);
                   2949:                         alldelconfirm.push.apply(alldelconfirm,result['delete']);
                   2950:                         break;
                   2951:                     }
                   2952:                 }
                   2953:             }
                   2954:             if (submitter == '' || submitter == undefined) {
                   2955:                 for (var m=0; m<allprefixes.length; m++) {
                   2956:                     for (var n=0; n<allparts[allprefixes[m]].length; n++) {
                   2957:                         var result = overwritten_check(formname,path,multiresp,allparts[allprefixes[m]][n],allprefixes[m]);
                   2958:                         alloverwrites.push.apply(alloverwrites,result['overwrite']);
                   2959:                         alldelconfirm.push.apply(alldelconfirm,result['delete']);
                   2960:                     }
                   2961:                 }
                   2962:             }
                   2963:         }
                   2964:     }
                   2965:     if (alloverwrites.length > 0) {
                   2966:         if (!confirm("$overwritewarn")) {
                   2967:             for (var n=0; n<alloverwrites.length; n++) {
                   2968:                 formname.elements[alloverwrites[n]].value = "";
                   2969:             }
                   2970:             return false;
                   2971:         }
                   2972:     }
                   2973:     if (alldelconfirm.length > 0) {
                   2974:         if (!confirm("$delfilewarn")) {
                   2975:             for (var p=0; p<alldelconfirm.length; p++) {
                   2976:                 formname.elements[alldelconfirm[p]].checked = false;
                   2977:             }
                   2978:             return false;
                   2979:         }
                   2980:     }
                   2981:     return true;
                   2982: }
                   2983: 
                   2984: function getIndexByName(formname,item) {
                   2985:     for (var i=0;i<formname.elements.length;i++) {
                   2986:         if (formname.elements[i].name == item) {
                   2987:             return i;
                   2988:         }
                   2989:     }
                   2990:     return -1;
                   2991: }
                   2992: 
                   2993: function overwritten_check(formname,path,multiresp,part,prefix) {
                   2994:     var result = [];
                   2995:     result['overwrite'] = [];
                   2996:     result['delete'] = [];
                   2997:     var elemnum = formname.elements.length;
                   2998:     if (elemnum == 0) {
                   2999:         return result;
                   3000:     }
                   3001:     var uploadstr;
                   3002:     var deletestr;
                   3003:     if ((prefix != undefined) && (prefix != '')) {
                   3004:         var prepend = prefix+'_';
                   3005:         uploadstr = new RegExp("^"+prepend+"HWFILE"+part+".+\$");
                   3006:         deletestr = new RegExp("^"+prepend+"HWFILE"+part+".+_\\\\d+_delete\$");
                   3007:         multiresp = check_for_multiples(prepend);
                   3008:         path = check_for_turninpath(prepend);
                   3009:     } else {
                   3010:         uploadstr = new RegExp("^HWFILE"+part+".+\$");
                   3011:         deletestr = new RegExp("^HWFILE"+part+".+_\\\\d+_delete\$");
                   3012:     }
                   3013:     var alluploads = [];
                   3014:     var allchecked = [];
                   3015:     var allskipdel = [];
                   3016:     var fnametrim = /[^\\/\\\\]+\$/;
                   3017:     for (var i=0; i<formname.elements.length; i++) {
                   3018:         var id = formname.elements[i].id;
                   3019:         if (id != '') {
                   3020:             if (uploadstr.test(id)) {
                   3021:                 if (formname.elements[i].type == 'file') {
                   3022:                     alluploads.push(id);
                   3023:                 } else {
                   3024:                     if (deletestr.test(id)) {
                   3025:                         if (formname.elements[i].type == 'checkbox') {
                   3026:                             if (formname.elements[i].checked) {
                   3027:                                 allchecked.push(id);
                   3028:                             }
                   3029:                         }
                   3030:                     }
                   3031:                 }
                   3032:             }
                   3033:         }
                   3034:     }
                   3035:     for (var j=0; j<alluploads.length; j++) {
                   3036:         var delstr = new RegExp("^"+alluploads[j]+"_\\\\d+_delete\$");
                   3037:         var delboxes = [];
                   3038:         for (var k=0; k<formname.elements.length; k++) {
                   3039:             var id = formname.elements[k].id;
                   3040:             if ((id != '') && (id != undefined)) {
                   3041:                 if (delstr.test(id)) {
                   3042:                     if (formname.elements[k].type == 'checkbox') {
                   3043:                         delboxes.push(id);
                   3044:                     }
                   3045:                 }
                   3046:             }
                   3047:         }
                   3048:         if (delboxes.length > 0) {
                   3049:             if ((formname.elements[alluploads[j]].value != undefined) &&
                   3050:                 (formname.elements[alluploads[j]].value != '')) {
                   3051:                 var filepath = formname.elements[alluploads[j]].value;
                   3052:                 var newfilename = fnametrim.exec(filepath);
                   3053:                 if (newfilename != null) {
                   3054:                     var filename = String(newfilename);
                   3055:                     var nospaces = filename.replace(/\\s+/g,'_');
                   3056:                     var nospecials = nospaces.replace(/[^\\/\\w\\.\\-]/g,'');
                   3057:                     var cleanfilename = nospecials.replace(/\\.(\\d+\\.)/g,"_\$1");
                   3058:                     if (cleanfilename != '') {
                   3059:                         var fullpath = path+"/"+cleanfilename;
                   3060:                         if (multiresp == 1) {
                   3061:                             var partid = String(alluploads[i]);
                   3062:                             var subdir = partid.replace(/^\\d*.?\\d*_?HWFILE/,'');
                   3063:                             if (subdir != "" && subdir != undefined) {
                   3064:                                 fullpath = path+"/"+subdir+"/"+cleanfilename;
                   3065:                             }
                   3066:                         }
                   3067:                         for (var m=0; m<delboxes.length; m++) {
                   3068:                             if (fullpath == formname.elements[delboxes[m]].value) {
                   3069:                                 if (formname.elements[delboxes[m]].checked) {
                   3070:                                     allskipdel.push(delboxes[m]);
                   3071:                                 } else {
                   3072:                                     result['overwrite'].push(alluploads[j]);
                   3073:                                 }
                   3074:                                 break;
                   3075:                             }
                   3076:                         }
                   3077:                     }
                   3078:                 }
                   3079:             }
                   3080:         }
                   3081:     }
                   3082:     if (allchecked.length > 0) {
                   3083:         if (allskipdel.length > 0) {
                   3084:             for (var n=0; n<allchecked.length; n++) {
                   3085:                 if (allskipdel.indexOf(allchecked[n]) == -1) {
                   3086:                     result['delete'].push(allchecked[n]);
                   3087:                 }
                   3088:             }
                   3089:         } else {
                   3090:             result['delete'].push.apply(result['delete'],allchecked);
                   3091:         }
                   3092:     }
                   3093:     return result;
                   3094: }
                   3095: 
                   3096: function check_for_multiples(prefix) {
                   3097: $multtext
                   3098: }
                   3099: 
                   3100: function check_for_turninpath(prefix) {
                   3101: $turninpathtext
                   3102: }
                   3103: 
                   3104: // ]]>
                   3105: </script>
                   3106: 
1.292     raeburn  3107: $arrayindexofjs
                   3108: 
1.291     raeburn  3109: ENDSCRIPT
                   3110: }
                   3111: 
                   3112: ##############################################
                   3113: ##############################################
                   3114: 
1.313     raeburn  3115: sub resize_scrollbox_js {
1.353     raeburn  3116:     my ($context,$tabidstr,$tid) = @_;
1.313     raeburn  3117:     my (%names,$paddingwfrac,$offsetwfrac,$offsetv,$minw,$minv);
                   3118:     if ($context eq 'docs') {
                   3119:         %names = (
                   3120:                    boxw   => 'contenteditor',
                   3121:                    item   => 'contentlist',
                   3122:                    header => 'uploadfileresult',
                   3123:                    scroll => 'contentscroll',
                   3124:                    boxh   => 'contenteditor',
                   3125:                  );
1.350     raeburn  3126:         $paddingwfrac = 0.09;
1.313     raeburn  3127:         $offsetwfrac = 0.015;
                   3128:         $offsetv = 20;
                   3129:         $minw = 250;
                   3130:         $minv = 200;
                   3131:     } elsif ($context eq 'params') {
                   3132:         %names = (
                   3133:                    boxw   => 'parameditor',
                   3134:                    item   => 'mapmenuinner',
                   3135:                    header => 'parmstep1',
                   3136:                    scroll => 'mapmenuscroll',
                   3137:                    boxh   => 'parmlevel',
                   3138:                  );
                   3139:         $paddingwfrac = 0.2;
                   3140:         $offsetwfrac = 0.015;
                   3141:         $offsetv = 80;
                   3142:         $minw = 100;
                   3143:         $minv = 100; 
                   3144:     }
                   3145:     my $viewport_js = &Apache::loncommon::viewport_geometry_js();
                   3146:     my $output = '
                   3147: 
                   3148: window.onresize=callResize;
                   3149: 
                   3150: ';
                   3151:     if ($context eq 'docs') {
1.353     raeburn  3152:         if ($env{'form.active'}) {
                   3153:             $output .= "\nvar activeTab = '$env{'form.active'}$tid';\n";
                   3154:         } else {
                   3155:             $output .= "\nvar activeTab = '';\n";
                   3156:         }
1.313     raeburn  3157:     }
                   3158:     $output .=  <<"FIRST";
                   3159: 
                   3160: $viewport_js
                   3161: 
                   3162: function resize_scrollbox(scrollboxname,chkw,chkh) {
                   3163:     var scrollboxid = 'div_'+scrollboxname;
                   3164:     var scrolltableid = 'table_'+scrollboxname;
                   3165:     var scrollbox;
                   3166:     var scrolltable;
1.350     raeburn  3167:     var ismobile = '$env{'browser.mobile'}';
1.313     raeburn  3168: 
                   3169:     if (document.getElementById("$names{'boxw'}") == null) {
                   3170:         return;
                   3171:     }
                   3172: 
                   3173:     if (document.getElementById(scrollboxid) == null) {
                   3174:         return;
                   3175:     } else {
                   3176:         scrollbox = document.getElementById(scrollboxid);
                   3177:     }
                   3178: 
                   3179: 
                   3180:     if (document.getElementById(scrolltableid) == null) {
                   3181:         return;
                   3182:     } else {
                   3183:         scrolltable = document.getElementById(scrolltableid);
                   3184:     }
                   3185: 
                   3186:     init_geometry();
                   3187:     var vph = Geometry.getViewportHeight();
                   3188:     var vpw = Geometry.getViewportWidth();
                   3189: 
                   3190: FIRST
                   3191:     if ($context eq 'docs') {
                   3192:         $output .= "
                   3193:     var alltabs = ['$tabidstr'];
                   3194: ";
                   3195:     } elsif ($context eq 'params') {
                   3196:         $output .= "
                   3197:     if (document.getElementById('$names{'boxh'}') == null) {
                   3198:         return;
                   3199:     }
                   3200: ";
                   3201:     }
                   3202:     $output .= <<"SECOND";
                   3203:     var listwchange;
1.350     raeburn  3204:     var scrollchange;
1.313     raeburn  3205:     if (chkw == 1) {
                   3206:         var boxw = document.getElementById("$names{'boxw'}").offsetWidth;
                   3207:         var itemw;
                   3208:         var itemid = document.getElementById("$names{'item'}");
                   3209:         if (itemid != null) {
                   3210:             itemw = itemid.offsetWidth;
                   3211:         }
                   3212:         var itemwstart = itemw;
                   3213: 
                   3214:         var scrollboxw = scrollbox.offsetWidth;
                   3215:         var scrollboxscrollw = scrollbox.scrollWidth;
1.350     raeburn  3216:         var scrollstart = scrollboxw;
1.313     raeburn  3217: 
                   3218:         var offsetw = parseInt(vpw * $offsetwfrac);
                   3219:         var paddingw = parseInt(vpw * $paddingwfrac);
                   3220: 
                   3221:         var minscrollboxw = $minw;
                   3222:         var maxcolw = 0;
                   3223: SECOND
                   3224:     if ($context eq 'docs') {
                   3225:         $output .= <<"DOCSONE";
                   3226:         var actabw = 0;
                   3227:         for (var i=0; i<alltabs.length; i++) {
                   3228:             if (activeTab == alltabs[i]) {
                   3229:                 actabw = document.getElementById(alltabs[i]).offsetWidth;
                   3230:                 if (actabw > maxcolw) {
                   3231:                     maxcolw = actabw;
                   3232:                 }
                   3233:             } else {
                   3234:                 if (document.getElementById(alltabs[i]) != null) {
                   3235:                     var thistab = document.getElementById(alltabs[i]);
                   3236:                     thistab.style.visibility = 'hidden';
                   3237:                     thistab.style.display = 'block';
                   3238:                     var tabw = document.getElementById(alltabs[i]).offsetWidth;
                   3239:                     thistab.style.display = 'none';
                   3240:                     thistab.style.visibility = '';
                   3241:                     if (tabw > maxcolw) {
                   3242:                         maxcolw = tabw;
                   3243:                     }
                   3244:                 }
                   3245:             }
                   3246:         }
                   3247: DOCSONE
                   3248:     } elsif ($context eq 'params') {
                   3249:         $output .= <<"PARAMSONE";
                   3250:         var parmlevelrows = new Array();
                   3251:         var mapmenucells = new Array();
                   3252:         parmlevelrows = document.getElementById("$names{'boxh'}").rows;
                   3253:         var numrows = parmlevelrows.length;
                   3254:         if (numrows > 1) {
                   3255:             mapmenucells = parmlevelrows[2].getElementsByTagName('td');
                   3256:         }
                   3257:         maxcolw = mapmenucells[0].offsetWidth;
                   3258: PARAMSONE
                   3259:     }
                   3260:     $output .= <<"THIRD";
                   3261:         if (maxcolw > 0) {
                   3262:             var newscrollboxw;
                   3263:             if (maxcolw+paddingw+scrollboxscrollw<boxw) {
                   3264:                 newscrollboxw = boxw-paddingw-maxcolw;
                   3265:                 if (newscrollboxw < minscrollboxw) {
                   3266:                     newscrollboxw = minscrollboxw;
                   3267:                 }
                   3268:                 scrollbox.style.width = newscrollboxw+"px";
                   3269:                 if (newscrollboxw != scrollboxw) {
                   3270:                     var newitemw = newscrollboxw-offsetw;
                   3271:                     itemid.style.width = newitemw+"px";
                   3272:                 }
                   3273:             } else {
                   3274:                 newscrollboxw = boxw-paddingw-maxcolw;
                   3275:                 if (newscrollboxw < minscrollboxw) {
                   3276:                     newscrollboxw = minscrollboxw;
                   3277:                 }
                   3278:                 scrollbox.style.width = newscrollboxw+"px";
                   3279:                 if (newscrollboxw != scrollboxw) {
                   3280:                     var newitemw = newscrollboxw-offsetw;
                   3281:                     itemid.style.width = newitemw+"px";
                   3282:                 }
                   3283:             }
                   3284: 
                   3285:             if (newscrollboxw != scrollboxw) {
                   3286:                 var newscrolltablew = newscrollboxw+offsetw;
                   3287:                 scrolltable.style.width = newscrolltablew+"px";
                   3288:             }
                   3289:         }
                   3290: 
1.350     raeburn  3291:         if (newscrollboxw != scrollboxw) {
                   3292:             scrollchange = 1;
                   3293:         }
                   3294: 
1.313     raeburn  3295:         if (itemid.offsetWidth != itemwstart) {
                   3296:             listwchange = 1;
                   3297:         }
                   3298:     }
                   3299:     if ((chkh == 1) || (listwchange)) {
1.350     raeburn  3300:         var itemid = document.getElementById("$names{'item'}");
                   3301:         if (itemid != null) {
                   3302:             itemh = itemid.offsetHeight;
                   3303:         }
1.313     raeburn  3304:         var primaryheight = document.getElementById('LC_nav_bar').offsetHeight;
1.339     raeburn  3305:         var secondaryheight;
                   3306:         if (document.getElementById('LC_secondary_menu') != null) { 
                   3307:             secondaryheight = document.getElementById('LC_secondary_menu').offsetHeight;
                   3308:         }
1.313     raeburn  3309:         var crumbsheight = document.getElementById('LC_breadcrumbs').offsetHeight;
                   3310:         var dccidheight = 0;
                   3311:         if (document.getElementById('dccid') != null) {
                   3312:             dccidheight = document.getElementById('dccid').offsetHeight;
                   3313:         }
                   3314:         var headerheight = 0;
                   3315:         if (document.getElementById("$names{'header'}") != null) {
                   3316:             headerheight = document.getElementById("$names{'header'}").offsetHeight;
                   3317:         }
                   3318:         var tabbedheight = document.getElementById("tabbededitor").offsetHeight;
                   3319:         var boxheight = document.getElementById("$names{'boxh'}").offsetHeight;
                   3320:         var freevspace = vph-(primaryheight+secondaryheight+crumbsheight+dccidheight+headerheight+tabbedheight+boxheight);
                   3321: 
                   3322:         var scrollboxheight = scrollbox.offsetHeight;
                   3323:         var scrollboxscrollheight = scrollbox.scrollHeight;
1.350     raeburn  3324:         var scrollboxh = scrollboxheight;
1.313     raeburn  3325: 
                   3326:         var minvscrollbox = $minv;
                   3327:         var offsetv = $offsetv;
                   3328:         var newscrollboxheight;
                   3329:         if (freevspace < 0) {
                   3330:             newscrollboxheight = scrollboxheight+freevspace-offsetv;
                   3331:             if (newscrollboxheight < minvscrollbox) {
                   3332:                 newscrollboxheight = minvscrollbox;
                   3333:             }
                   3334:             scrollbox.style.height = newscrollboxheight + "px";
                   3335:         } else {
                   3336:             if (scrollboxscrollheight > scrollboxheight) {
                   3337:                 if (freevspace > offsetv) {
                   3338:                     newscrollboxheight = scrollboxheight+freevspace-offsetv;
                   3339:                     if (newscrollboxheight < minvscrollbox) {
                   3340:                         newscrollboxheight = minvscrollbox;
                   3341:                     }
                   3342:                     scrollbox.style.height = newscrollboxheight+"px";
                   3343:                 }
                   3344:             }
                   3345:         }
                   3346:         scrollboxheight = scrollbox.offsetHeight;
                   3347:         var itemh = document.getElementById("$names{'item'}").offsetHeight;
                   3348: 
                   3349:         if (scrollboxscrollheight <= scrollboxheight) {
                   3350:             if ((itemh+offsetv)<scrollboxheight) {
                   3351:                 newscrollheight = itemh+offsetv;
                   3352:                 scrollbox.style.height = newscrollheight+"px";
                   3353:             }
                   3354:         }
1.350     raeburn  3355:         var newscrollboxh = scrollbox.offsetHeight;
                   3356:         if (scrollboxh != newscrollboxh) {
                   3357:             scrollchange = 1;
                   3358:         }
                   3359:     }
                   3360:     if (ismobile && scrollchange) {
                   3361:         \$("#div_$names{'scroll'}").getNiceScroll().onResize();
1.313     raeburn  3362:     }
                   3363:     return;
                   3364: }
                   3365: 
                   3366: function callResize() {
                   3367:     var timer;
                   3368:     clearTimeout(timer);
                   3369:     timer=setTimeout('resize_scrollbox("$names{'scroll'}","1","1")',500);
                   3370: }
                   3371: 
1.329     raeburn  3372: THIRD
1.313     raeburn  3373:     return $output;
                   3374: }
                   3375: 
1.328     raeburn  3376: ##############################################
                   3377: ##############################################
                   3378: 
                   3379: sub javascript_jumpto_resource {
1.358.2.3  raeburn  3380:     my $confirm_switch = &mt("Editing requires switching to the resource's home server.")."\n".
1.328     raeburn  3381:                          &mt('Switch server?');
1.358.2.3  raeburn  3382:     &js_escape(\$confirm_switch);
1.328     raeburn  3383:     return (<<ENDUTILITY)
                   3384: 
                   3385: function go(url) {
                   3386:    if (url!='' && url!= null) {
                   3387:        currentURL = null;
                   3388:        currentSymb= null;
1.358.2.15! raeburn  3389:        var lcHostname = setLCHost();
        !          3390:        if (lcHostname!='' && lcHostname!= null) {
        !          3391:            var RegExp = /^https?\:/;
        !          3392:            if (RegExp.test(url)) {
        !          3393:                window.location.href=url;
        !          3394:            } else {
        !          3395:                window.location.href=lcHostname+url;
        !          3396:            }
        !          3397:        } else {
        !          3398:            window.location.href=url;
        !          3399:        }
1.328     raeburn  3400:    }
                   3401: }
                   3402: 
                   3403: function need_switchserver(url) {
                   3404:     if (url!='' && url!= null) {
                   3405:         if (confirm("$confirm_switch")) {
                   3406:             go(url);
                   3407:         }
                   3408:     }
                   3409:     return;
                   3410: }
                   3411: 
                   3412: ENDUTILITY
                   3413: 
                   3414: }
                   3415: 
                   3416: sub jump_to_editres {
1.332     raeburn  3417:     my ($cfile,$home,$switchserver,$forceedit,$forcereg,$symb,$folderpath,
1.358.2.9  raeburn  3418:         $title,$idx,$suppurl,$todocs,$suppanchor) = @_;
1.358.2.15! raeburn  3419:     my ($jscall,$anchor,$usehttp,$usehttps,$is_ext);
1.328     raeburn  3420:     if ($switchserver) {
1.332     raeburn  3421:         if ($home) {
1.328     raeburn  3422:             $cfile = '/adm/switchserver?otherserver='.$home.'&amp;role='.
1.332     raeburn  3423:                      &HTML::Entities::encode($env{'request.role'},'"<>&');
                   3424:             if ($symb) {
                   3425:                 $cfile .= '&amp;symb='.&HTML::Entities::encode($symb,'"<>&');
                   3426:             } elsif ($folderpath) {
                   3427:                 $cfile .= '&amp;folderpath='.&HTML::Entities::encode($folderpath,'"<>&');
                   3428:             }
1.330     raeburn  3429:             if ($forceedit) {
1.328     raeburn  3430:                 $cfile .= '&amp;forceedit=1';
                   3431:             }
1.330     raeburn  3432:             if ($forcereg) {
                   3433:                 $cfile .= '&amp;register=1';
                   3434:             }
1.358     raeburn  3435:             $jscall = "need_switchserver('".&Apache::loncommon::escape_single($cfile)."');";
1.328     raeburn  3436:         }
                   3437:     } else {
1.330     raeburn  3438:         unless ($cfile =~ m{^/priv/}) {
1.358.2.15! raeburn  3439:             if ($cfile =~ m{^(/adm/wrapper/ext/([^#]+))(?:|#([^#]+))$}) {
1.358.2.9  raeburn  3440:                 $cfile = $1;
1.358.2.15! raeburn  3441:                 my $extlink = $2;
        !          3442:                 $anchor = $3;
        !          3443:                 $is_ext = 1;
        !          3444:                 if (($extlink !~ /^https:/) && ($ENV{'SERVER_PORT'} == 443)) {
        !          3445:                     unless (&Apache::lonnet::uses_sts()) {
        !          3446:                         $usehttp = 1;
        !          3447:                     }
        !          3448:                 } elsif ($env{'request.use_absolute'}) {
        !          3449:                     if ($env{'request.use_absolute'} =~ m{^https://}) {
        !          3450:                         $usehttps = 1;
        !          3451:                     }
        !          3452:                 }
        !          3453:             } elsif ($cfile =~ m{^/?public/($match_domain)/($match_courseid)/syllabus}) {
        !          3454:                 if ($ENV{'SERVER_PORT'} == 443) {
        !          3455:                     my ($cdom,$cnum) = ($1,$2);
        !          3456:                     if (($env{'request.course.id'}) &&
        !          3457:                         ($env{'course.'.$env{'request.course.id'}.'.num'} eq $cnum) &&
        !          3458:                         ($env{'course.'.$env{'request.course.id'}.'.domain'} eq $cdom)) {
        !          3459:                         if ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://}) {
        !          3460:                             unless (&Apache::lonnet::uses_sts()) {
        !          3461:                                 $usehttp = 1;
        !          3462:                             }
        !          3463:                         }
        !          3464:                     }
        !          3465:                 } elsif ($env{'request.use_absolute'}) {
        !          3466:                     if ($env{'request.use_absolute'} =~ m{^https://}) {
        !          3467:                         $usehttps = 1;
        !          3468:                     }
        !          3469:                 }
1.358.2.9  raeburn  3470:             }
1.330     raeburn  3471:             if ($symb) {
1.358.2.9  raeburn  3472:                 if ($anchor ne '') {
                   3473:                     if ($symb =~ m{^([^#]+)\Q#$anchor\E$}) {
                   3474:                         $symb = $1.&escape(&escape('#')).$anchor;
                   3475:                     }
                   3476:                 }
1.332     raeburn  3477:                 $cfile .= (($cfile=~/\?/)?'&amp;':'?')."symb=$symb";
                   3478:             } elsif ($folderpath) {
                   3479:                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').
                   3480:                           'folderpath='.&HTML::Entities::encode(&escape($folderpath),'"<>&');
                   3481:                 if ($title) {
                   3482:                     $cfile .= (($cfile=~/\?/)?'&amp;':'?').
                   3483:                               'title='.&HTML::Entities::encode(&escape($title),'"<>&');
                   3484:                 }
                   3485:                 if ($idx) {
                   3486:                     $cfile .= (($cfile=~/\?/)?'&amp;':'?').'idx='.$idx;
                   3487:                 }
                   3488:                 if ($suppurl) {
                   3489:                     $cfile .= (($cfile=~/\?/)?'&amp;':'?').
                   3490:                               'suppurl='.&HTML::Entities::encode(&escape($suppurl));
                   3491:                 }
1.330     raeburn  3492:             }
                   3493:             if ($forceedit) {
                   3494:                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').'forceedit=1';
1.358.2.15! raeburn  3495:                 if ($usehttps) {
        !          3496:                     $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
        !          3497:                 }
        !          3498:             } elsif ($usehttp) {
        !          3499:                 if ($hostname ne '') {
        !          3500:                     $cfile = 'http://'.$hostname.(($cfile =~ /^\//)? '':'/').$cfile;
        !          3501:                 }
        !          3502:                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').'usehttp=1';
        !          3503:             } elsif ($usehttps) {
        !          3504:                 $cfile = $env{'request.use_absolute'}.(($cfile =~ /^\//)? '':'/').$cfile;
1.330     raeburn  3505:             }
                   3506:             if ($forcereg) {
                   3507:                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').'register=1';
                   3508:             }
1.337     raeburn  3509:             if ($todocs) {
1.358.2.9  raeburn  3510:                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').'todocs=1';
1.337     raeburn  3511:             }
1.358.2.9  raeburn  3512:             if ($suppanchor ne '') {
                   3513:                 $cfile .= (($cfile=~/\?/)?'&amp;':'?').'anchor='.
                   3514:                           &HTML::Entities::encode($suppanchor,'"<>&');
                   3515:             }
                   3516:         }
                   3517:         if ($anchor ne '') {
                   3518:             $cfile .= '#'.$anchor;
1.328     raeburn  3519:         }
1.358     raeburn  3520:         $jscall = "go('".&Apache::loncommon::escape_single($cfile)."')";
1.328     raeburn  3521:     }
                   3522:     return $jscall;
                   3523: }
1.313     raeburn  3524: 
                   3525: ##############################################
                   3526: ##############################################
                   3527: 
1.158     raeburn  3528: # javascript_valid_email
                   3529: #
                   3530: # Generates javascript to validate an e-mail address.
                   3531: # Returns a javascript function which accetps a form field as argumnent, and
                   3532: # returns false if field.value does not satisfy two regular expression matches
                   3533: # for a valid e-mail address.  Backwards compatible with old browsers without
                   3534: # support for javascript RegExp (just checks for @ in field.value in this case). 
                   3535: 
                   3536: sub javascript_valid_email {
                   3537:     my $scripttag .= <<'END';
                   3538: function validmail(field) {
                   3539:     var str = field.value;
                   3540:     if (window.RegExp) {
                   3541:         var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
                   3542:         var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
                   3543:         var reg1 = new RegExp(reg1str);
                   3544:         var reg2 = new RegExp(reg2str);
                   3545:         if (!reg1.test(str) && reg2.test(str)) {
                   3546:             return true;
                   3547:         }
                   3548:         return false;
                   3549:     }
                   3550:     else
                   3551:     {
                   3552:         if(str.indexOf("@") >= 0) {
                   3553:             return true;
                   3554:         }
                   3555:         return false;
                   3556:     }
                   3557: }
                   3558: END
                   3559:     return $scripttag;
                   3560: }
                   3561: 
1.219     droeschl 3562: 
                   3563: # USAGE: htmltag(element, content, {attribute => value,...});
                   3564: #
                   3565: # EXAMPLES: 
                   3566: #  - htmltag('a', 'this is an anchor', {href  => 'www.example.com', 
                   3567: #                                       title => 'this is a title'})
                   3568: #
                   3569: #  - You might want to set up needed tags like: 
                   3570: #
                   3571: #     my $h3  = sub { return htmltag( "h3",  @_ ) };
                   3572: #
                   3573: #    ... and use them: $h3->("This is a headline")
                   3574: #
                   3575: #  - To set up a couple of tags, see sub inittags
                   3576: #
                   3577: # NOTES:
                   3578: # - Empty elements, such as <br/> are correctly terminated, 
                   3579: #   i.e. htmltag('br') returns <br/> 
                   3580: # - Empty attributes (title="") are filtered out.
                   3581: # - The function will not check for deprecated attributes.
                   3582: #
                   3583: # OUTPUT: content enclosed in xhtml conform tags
                   3584: sub htmltag{
                   3585:     return
                   3586:         qq|<$_[0]|
1.357     raeburn  3587:         . join( '', map { qq| $_="${$_[2]}{$_}"| if ${$_[2]}{$_} } keys(%{ $_[2] }) )
1.219     droeschl 3588:         . ($_[1] ? qq|>$_[1]</$_[0]>| : qq|/>|). "\n";
                   3589: };
                   3590: 
                   3591: 
                   3592: # USAGE: inittags(@tags);
                   3593: #
                   3594: # EXAMPLES:
1.261     droeschl 3595: #  - my ($h1, $h2, $h3) = inittags( qw( h1 h2 h3 ) )
1.219     droeschl 3596: #    $h1->("This is a headline") #Returns: <h1>This is a headline</h1>
                   3597: #
                   3598: # NOTES: See sub htmltag for further information.
                   3599: #
                   3600: # OUTPUT: List of subroutines. 
                   3601: sub inittags {
                   3602:     my @tags = @_;
                   3603:     return map { my $tag = $_;
                   3604:                  sub { return htmltag( $tag, @_ ) }
                   3605:                } @tags;
                   3606: }
                   3607: 
                   3608: 
1.231     droeschl 3609: # USAGE: scripttag(scriptcode, [start|end|both]);
1.229     droeschl 3610: #
                   3611: # EXAMPLES: 
1.231     droeschl 3612: #  - scripttag("alert('Hello World!')", 'both') 
                   3613: #    returns:
                   3614: #    <script type="text/javascript">
                   3615: #    // BEGIN LON-CAPA Internal
                   3616: #    alert(Hello World!')
                   3617: #    // END LON-CAPA Internal
                   3618: #    </script>
1.229     droeschl 3619: #
                   3620: # NOTES:
                   3621: # - works currently only for javascripts
                   3622: #
1.231     droeschl 3623: # OUTPUT: 
                   3624: # Scriptcode properly enclosed in <script> and CDATA tags (and LC
                   3625: # Internal markers if 2nd argument is given)
1.229     droeschl 3626: sub scripttag {
1.231     droeschl 3627:     my ( $content, $marker ) = @_;
                   3628:     return unless defined $content;
                   3629: 
                   3630:     my $begin = "\n// BEGIN LON-CAPA Internal\n";
                   3631:     my $end   = "\n// END LON-CAPA Internal\n";
                   3632: 
                   3633:     if ($marker) {
                   3634:         $content  = $begin . $content if $marker eq 'start' or $marker eq 'both';
                   3635:         $content .= $end              if $marker eq 'end'   or $marker eq 'both';
                   3636:     }
                   3637: 
1.229     droeschl 3638:     $content = "\n// <![CDATA[\n$content\n// ]]>\n";
1.231     droeschl 3639: 
                   3640:     return htmltag('script', $content, {type => 'text/javascript'});
1.229     droeschl 3641: };
                   3642: 
1.309     raeburn  3643: =pod
1.229     droeschl 3644: 
1.309     raeburn  3645: =item &list_from_array( \@array, { listattr =>{}, itemattr =>{} } )
1.261     droeschl 3646: 
                   3647: Constructs a XHTML list from \@array.
                   3648: 
                   3649: input: 
                   3650: 
                   3651: =over
                   3652: 
                   3653: =item \@array 
                   3654: 
                   3655: A reference to the array containing text that will be wrapped in <li></li> tags.
                   3656: 
                   3657: =item { listattr => {}, itemattr =>{} } 
                   3658: 
                   3659: Attributes for <ul> and <li> passed in as hash references. 
                   3660: See htmltag() for more details.
                   3661: 
                   3662: =back
                   3663:  
                   3664: returns: XHTML list as String. 
                   3665: 
                   3666: =cut   
                   3667: 
                   3668: # \@items, {listattr => { class => 'abc', id => 'xyx' }, itemattr => {class => 'abc', id => 'xyx'}}
                   3669: sub list_from_array {
                   3670:     my ($items, $args) = @_;
1.285     raeburn  3671:     return unless (ref($items) eq 'ARRAY');
1.273     droeschl 3672:     return unless scalar @$items;
1.261     droeschl 3673:     my ($ul, $li) = inittags( qw(ul li) );
                   3674:     my $listitems = join '', map { $li->($_, $args->{itemattr}) } @$items;
                   3675:     return $ul->( $listitems, $args->{listattr} );
                   3676: }
                   3677: 
                   3678: 
1.183     droeschl 3679: ##############################################
                   3680: ##############################################
                   3681: 
                   3682: # generate_menu
                   3683: #
                   3684: # Generates html markup for a menu. 
                   3685: #
                   3686: # Inputs:
                   3687: # An array of following structure:
                   3688: #   ({	categorytitle => 'Categorytitle',
                   3689: #	items => [
1.201     droeschl 3690: #		    {	
                   3691: #           linktext    =>	'Text to be displayed',
                   3692: #			url	        =>	'URL the link is pointing to, i.e. /adm/site?action=dosomething',
1.183     droeschl 3693: #			permission  =>	'Contains permissions as returned from lonnet::allowed(),
1.201     droeschl 3694: #					         must evaluate to true in order to activate the link',
1.184     droeschl 3695: #			icon        =>  'icon filename',
1.186     droeschl 3696: #			alttext	    =>	'alt text for the icon',
1.183     droeschl 3697: #			help	    =>	'Name of the corresponding helpfile',
                   3698: #			linktitle   =>	'Description of the link (used for title tag)'
                   3699: #		    },
                   3700: #		    ...
                   3701: #		]
                   3702: #   }, 
                   3703: #   ...
                   3704: #   )
                   3705: #
                   3706: # Outputs: A scalar containing the html markup for the menu.
                   3707: 
                   3708: sub generate_menu {
                   3709:     my @menu = @_;
1.201     droeschl 3710:     # subs for specific html elements
1.219     droeschl 3711:     my ($h3, $div, $ul, $li, $a, $img) = inittags( qw(h3 div ul li a img) ); 
1.201     droeschl 3712:     
                   3713:     my @categories; # each element represents the entire markup for a category
                   3714:    
                   3715:     foreach my $category (@menu) {
                   3716:         my @links;  # contains the links for the current $category
                   3717:         foreach my $link (@{$$category{items}}) {
                   3718:             next unless $$link{permission};
                   3719:             
                   3720:             # create the markup for the current $link and push it into @links.
                   3721:             # each entry consists of an image and a text optionally followed 
                   3722:             # by a help link.
1.283     raeburn  3723:             my $src;
                   3724:             if ($$link{icon} ne '') {
                   3725:                 $src = '/res/adm/pages/'.$$link{icon};
                   3726:             }
1.232     raeburn  3727:             push(@links,$li->(
1.201     droeschl 3728:                         $a->(
                   3729:                             $img->("", {
                   3730:                                 class => "LC_noBorder LC_middle",
1.283     raeburn  3731:                                 src   => $src,
1.202     droeschl 3732:                                 alt   => mt(defined($$link{alttext}) ?
                   3733:                                 $$link{alttext} : $$link{linktext})
1.201     droeschl 3734:                             }), {
                   3735:                             href  => $$link{url},
1.308     raeburn  3736:                             title => mt($$link{linktitle}),
                   3737:                             class => 'LC_menubuttons_link'
1.201     droeschl 3738:                             }).
1.202     droeschl 3739:                         $a->(mt($$link{linktext}), {
1.201     droeschl 3740:                             href  => $$link{url},
1.202     droeschl 3741:                             title => mt($$link{linktitle}),
1.201     droeschl 3742:                             class => "LC_menubuttons_link"
                   3743:                             }).
                   3744:                          (defined($$link{help}) ? 
                   3745:                          Apache::loncommon::help_open_topic($$link{help}) : ''),
1.232     raeburn  3746:                          {class => "LC_menubuttons_inline_text"}));
1.201     droeschl 3747:         }
                   3748: 
                   3749:         # wrap categorytitle in <h3>, concatenate with 
                   3750:         # joined and in <ul> tags wrapped @links
                   3751:         # and wrap everything in an enclosing <div> and push it into
                   3752:         # @categories
                   3753:         # such that each element looks like:
                   3754:         # <div><h3>title</h3><ul><li>...</li>...</ul></div>
                   3755:         # the category won't be added if there aren't any links
1.232     raeburn  3756:         push(@categories, 
1.202     droeschl 3757:             $div->($h3->(mt($$category{categorytitle}), {class=>"LC_hcell"}).
1.201     droeschl 3758:             $ul->(join('' ,@links),  {class =>"LC_ListStyleNormal" }),
1.232     raeburn  3759:             {class=>"LC_Box LC_400Box"})) if scalar(@links);
1.183     droeschl 3760:     }
1.201     droeschl 3761: 
                   3762:     # wrap the joined @categories in another <div> (column layout)
                   3763:     return $div->(join('', @categories), {class => "LC_columnSection"});
1.183     droeschl 3764: }
1.176     foxr     3765: 
1.224     bisitz   3766: ##############################################
                   3767: ##############################################
                   3768: 
                   3769: =pod
                   3770: 
1.309     raeburn  3771: =item &start_funclist()
1.224     bisitz   3772: 
                   3773: Start list of available functions
                   3774: 
                   3775: Typically used to offer a simple list of available functions
                   3776: at top or bottom of page.
                   3777: All available functions/actions for the current page
                   3778: should be included in this list.
                   3779: 
                   3780: If the optional headline text is not provided, a default text will be used.
                   3781: 
                   3782: 
                   3783: Related routines:
                   3784: =over 4
                   3785: add_item_funclist
                   3786: end_funclist
                   3787: =back
                   3788: 
                   3789: 
                   3790: Inputs: (optional) headline text
                   3791: 
                   3792: Returns: HTML code with function list start
                   3793: 
                   3794: =cut
                   3795: 
                   3796: ##############################################
                   3797: ##############################################
                   3798: 
                   3799: sub start_funclist {
                   3800:     my($legendtext)=@_;
                   3801:     $legendtext=&mt('Functions') if !$legendtext;
1.244     droeschl 3802:     return '<ul class="LC_funclist"><li style="font-weight:bold; margin-left:0.8em;">'.$legendtext.'</li>'."\n";
1.224     bisitz   3803: }
                   3804: 
                   3805: 
                   3806: ##############################################
                   3807: ##############################################
                   3808: 
                   3809: =pod
                   3810: 
1.309     raeburn  3811: =item &add_item_funclist()
1.224     bisitz   3812: 
                   3813: Adds an item to the list of available functions
                   3814: 
                   3815: Related routines:
                   3816: =over 4
                   3817: start_funclist
                   3818: end_funclist
                   3819: =back
                   3820: 
                   3821: Inputs: content item with text and link to function
                   3822: 
                   3823: Returns: HTML code with list item for funclist
                   3824: 
                   3825: =cut
                   3826: 
                   3827: ##############################################
                   3828: ##############################################
                   3829: 
                   3830: sub add_item_funclist {
                   3831:     my($content) = @_;
                   3832:     return '<li>'.$content.'</li>'."\n";
                   3833: }
                   3834: 
                   3835: =pod
                   3836: 
1.309     raeburn  3837: =item &end_funclist()
1.224     bisitz   3838: 
                   3839: End list of available functions
                   3840: 
                   3841: Related routines:
                   3842: =over 4
                   3843: start_funclist
                   3844: add_item_funclist
                   3845: =back
                   3846: 
                   3847: Inputs: ./.
                   3848: 
                   3849: Returns: HTML code with function list end
1.358.2.1  raeburn  3850: 
1.224     bisitz   3851: =cut
                   3852: 
                   3853: sub end_funclist {
1.246     bisitz   3854:     return "</ul>\n";
1.224     bisitz   3855: }
                   3856: 
1.261     droeschl 3857: =pod
                   3858: 
1.309     raeburn  3859: =item &funclist_from_array( \@array, {legend => 'text for legend'} )
1.261     droeschl 3860: 
                   3861: Constructs a XHTML list from \@array with the first item being visually
                   3862: highlighted and set to the value of legend or 'Functions' if legend is
                   3863: empty. 
                   3864: 
                   3865: =over
                   3866: 
                   3867: =item \@array
                   3868: 
                   3869: A reference to the array containing text that will be wrapped in <li></li> tags.
                   3870: 
                   3871: =item { legend => 'text' }
                   3872: 
                   3873: A string that's used as visually highlighted first item. 'Functions' is used if
                   3874: it's value evaluates to false.
                   3875: 
                   3876: =back
                   3877:  
                   3878: returns: XHTML list as string. 
                   3879: 
                   3880: =back
                   3881: 
                   3882: =cut  
                   3883: 
                   3884: sub funclist_from_array {
                   3885:     my ($items, $args) = @_;
1.285     raeburn  3886:     return unless(ref($items) eq 'ARRAY');
1.261     droeschl 3887:     $args->{legend} ||= mt('Functions');
                   3888:     return list_from_array( [$args->{legend}, @$items], 
                   3889:                { listattr => {class => 'LC_funclist'} });
                   3890: }   
                   3891: 
1.335     bisitz   3892: =pod
                   3893: 
1.358.2.1  raeburn  3894: =over
                   3895: 
1.335     bisitz   3896: =item &actionbox( \@array )
                   3897: 
                   3898: Constructs a XHTML list from \@array with the first item being visually
                   3899: highlighted and set to the value 'Actions'. The list is wrapped in a division.
                   3900: 
                   3901: The actionlist is used to offer contextual actions, mostly at the bottom
                   3902: of a page, on which the outcome of an processed action is shown,
1.346     raeburn  3903: e.g. a file operation in Authoring Space.
1.335     bisitz   3904: 
                   3905: =over
                   3906: 
                   3907: =item \@array
                   3908: 
                   3909: A reference to the array containing text. Details: sub funclist_from_array
                   3910: 
                   3911: =back
                   3912:  
1.358.2.1  raeburn  3913: Returns: XHTML div as string.
1.335     bisitz   3914: 
                   3915: =back
                   3916: 
                   3917: =cut  
                   3918: 
                   3919: sub actionbox {
                   3920:     my ($items) = @_;
                   3921:     return unless(ref($items) eq 'ARRAY');
                   3922:     return
                   3923:         '<div class="LC_actionbox">'
                   3924:        .&funclist_from_array($items, {legend => &mt('Actions')})
                   3925:        .'</div>';
                   3926: }
                   3927: 
1.1       stredwic 3928: 1;
1.23      matthew  3929: 
1.1       stredwic 3930: __END__

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