Annotation of loncom/interface/lonhtmlcommon.pm, revision 1.253.2.8

1.2       www         1: # The LearningOnline Network with CAPA
                      2: # a pile of common html routines
                      3: #
1.253.2.8! raeburn     4: # $Id: lonhtmlcommon.pm,v 1.253.2.7 2010/12/02 13:47:17 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;
1.130     www        63: use LONCAPA;
1.1       stredwic   64: 
1.247     www        65: 
                     66: sub coursepreflink {
                     67:    my ($text,$category)=@_;
                     68:    if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) {
                     69:       return '<a href="/adm/courseprefs?phase=display&actions='.$category.'">'.$text.'</a>';
                     70:    } else {
                     71:       return '';
                     72:    }
                     73: }
                     74: 
1.253     www        75: sub raw_href_to_link {
                     76:    my ($message)=@_;
                     77:    $message=~s/(https?\:\/\/[^\s\'\"]+)(\s|$)/<a href="$1"><tt>$1<\/tt><\/a>$2/gi;
                     78:    return $message;
                     79: }
                     80: 
1.208     www        81: ##############################################
                     82: ##############################################
                     83: 
                     84: =pod
                     85: 
                     86: =item confirm_success
                     87: 
                     88: Successful completion of an operation message
                     89: 
                     90: =cut
                     91: 
                     92: sub confirm_success {
1.209     www        93:    my ($message,$failure)=@_;
                     94:    if ($failure) {
1.211     bisitz     95:       return '<span class="LC_error">'."\n"
1.218     bisitz     96:             .'<img src="/adm/lonIcons/navmap.wrong.gif" alt="'.&mt('Error').'" /> '."\n"
1.211     bisitz     97:             .$message."\n"
                     98:             .'</span>'."\n";
1.209     www        99:    } else {
1.211     bisitz    100:       return '<span class="LC_success">'."\n"
1.233     raeburn   101:             .'<img src="/adm/lonIcons/navmap.correct.gif" alt="'.&mt('OK').'" /> '."\n"
1.211     bisitz    102:             .$message."\n"
                    103:             .'</span>'."\n";
1.209     www       104:    }
1.208     www       105: }
1.176     foxr      106: 
                    107: ##############################################
                    108: ##############################################
                    109: 
                    110: =pod
                    111: 
1.177     raeburn   112: =item dragmath_button
1.176     foxr      113: 
1.177     raeburn   114: Creates a button that launches a dragmath popup-window, in which an 
                    115: expression can be edited and pasted as LaTeX into a specified textarea. 
                    116: 
                    117:   textarea - Name of the textarea to edit.
                    118:   helpicon - If true, show a help icon to the right of the button.
1.176     foxr      119: 
                    120: =cut
                    121: 
1.177     raeburn   122: sub dragmath_button {
                    123:     my ($textarea,$helpicon) = @_;
                    124:     my $help_text; 
                    125:     if ($helpicon) {
                    126:         $help_text = &Apache::loncommon::help_open_topic('Authoring_Math_Editor');
                    127:     }
1.178     bisitz    128:     my $buttontext=&mt('Edit Math');
1.177     raeburn   129:     return <<ENDDRAGMATH;
1.246     bisitz    130:                 <input type="button" value="$buttontext" onclick="javascript:mathedit('$textarea',document)" />$help_text
1.177     raeburn   131: ENDDRAGMATH
                    132: }
                    133: 
1.176     foxr      134: ##############################################
                    135: 
1.177     raeburn   136: =pod
                    137: 
                    138: =item dragmath_js
                    139: 
                    140: Javascript used to open pop-up window containing dragmath applet which 
                    141: can be used to paste LaTeX into a textarea.
                    142:  
                    143: =cut
1.176     foxr      144: 
1.177     raeburn   145: sub dragmath_js {
1.182     foxr      146:     my ($popup) = @_;
1.177     raeburn   147:     return <<ENDDRAGMATHJS;
                    148:                 <script type="text/javascript">
1.218     bisitz    149:                 // <![CDATA[
1.176     foxr      150:                   function mathedit(textarea, doc) {
                    151:                      targetEntry = textarea;
1.177     raeburn   152:                      targetDoc   = doc;
1.182     foxr      153:                      newwin  = window.open("/adm/dragmath/applet/$popup.html","","width=565,height=500,resizable");
1.176     foxr      154:                   }
1.218     bisitz    155:                 // ]]>
1.176     foxr      156:                 </script>
1.177     raeburn   157: 
                    158: ENDDRAGMATHJS
1.176     foxr      159: }
                    160: 
1.182     foxr      161: 
1.40      www       162: ##############################################
                    163: ##############################################
                    164: 
                    165: =pod
                    166: 
                    167: =item authorbombs
                    168: 
                    169: =cut
                    170: 
                    171: ##############################################
                    172: ##############################################
                    173: 
                    174: sub authorbombs {
                    175:     my $url=shift;
                    176:     $url=&Apache::lonnet::declutter($url);
1.155     albertel  177:     my ($udom,$uname)=($url=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)/});
1.40      www       178:     my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
1.232     raeburn   179:     foreach my $bomb (keys(%bombs)) {
                    180: 	if ($bomb =~ /^$udom\/$uname\//) {
1.40      www       181: 	    return '<a href="/adm/bombs/'.$url.
1.218     bisitz    182: 		'"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/bomb.gif').'" alt="'.&mt('Bomb').'" border="0" /></a>'.
1.40      www       183: 		&Apache::loncommon::help_open_topic('About_Bombs');
                    184: 	}
                    185:     }
                    186:     return '';
                    187: }
1.26      matthew   188: 
                    189: ##############################################
                    190: ##############################################
                    191: 
1.41      www       192: sub recent_filename {
                    193:     my $area=shift;
1.130     www       194:     return 'nohist_recent_'.&escape($area);
1.41      www       195: }
                    196: 
                    197: sub store_recent {
1.136     albertel  198:     my ($area,$name,$value,$freeze)=@_;
1.41      www       199:     my $file=&recent_filename($area);
                    200:     my %recent=&Apache::lonnet::dump($file);
1.111     www       201:     if (scalar(keys(%recent))>20) {
1.41      www       202: # remove oldest value
1.136     albertel  203: 	my $oldest=time();
1.41      www       204: 	my $delkey='';
1.136     albertel  205: 	foreach my $item (keys(%recent)) {
                    206: 	    my $thistime=(split(/\&/,$recent{$item}))[0];
                    207: 	    if (($thistime ne "always_include") && ($thistime<$oldest)) {
1.41      www       208: 		$oldest=$thistime;
1.136     albertel  209: 		$delkey=$item;
1.41      www       210: 	    }
                    211: 	}
                    212: 	&Apache::lonnet::del($file,[$delkey]);
                    213:     }
                    214: # store new value
1.136     albertel  215:     my $timestamp;
                    216:     if ($freeze) {
                    217:         $timestamp = "always_include";
                    218:     } else {
                    219:         $timestamp = time();
                    220:     }   
1.41      www       221:     &Apache::lonnet::put($file,{ $name => 
1.136     albertel  222: 				 $timestamp.'&'.&escape($value) });
1.41      www       223: }
                    224: 
1.89      banghart  225: sub remove_recent {
                    226:     my ($area,$names)=@_;
                    227:     my $file=&recent_filename($area);
                    228:     return &Apache::lonnet::del($file,$names);
                    229: }
                    230: 
1.41      www       231: sub select_recent {
                    232:     my ($area,$fieldname,$event)=@_;
                    233:     my %recent=&Apache::lonnet::dump(&recent_filename($area));
                    234:     my $return="\n<select name='$fieldname'".
1.96      albertel  235: 	($event?" onchange='$event'":'').
1.41      www       236: 	">\n<option value=''>--- ".&mt('Recent')." ---</option>";
1.136     albertel  237:     foreach my $value (sort(keys(%recent))) {
                    238: 	unless ($value =~/^error\:/) {
                    239: 	    my $escaped = &Apache::loncommon::escape_url($value);
1.160     albertel  240: 	    &Apache::loncommon::inhibit_menu_check(\$escaped);
1.251     raeburn   241:             if ($area eq 'residx') {
                    242:                 next if ((!&Apache::lonnet::allowed('bre',$value)) && (!&Apache::lonnet::allowed('bro',$value)));
                    243:             }
1.94      foxr      244: 	    $return.="\n<option value='$escaped'>".
1.136     albertel  245: 		&unescape((split(/\&/,$recent{$value}))[1]).
1.41      www       246: 		'</option>';
                    247: 	}
                    248:     }
                    249:     $return.="\n</select>\n";
                    250:     return $return;
                    251: }
                    252: 
1.97      albertel  253: sub get_recent {
                    254:     my ($area, $n) = @_;
                    255:     my %recent=&Apache::lonnet::dump(&recent_filename($area));
                    256: 
                    257: # Create hash with key as time and recent as value
1.136     albertel  258: # Begin filling return_hash with any 'always_include' option
1.97      albertel  259:     my %time_hash = ();
1.136     albertel  260:     my %return_hash = ();
1.232     raeburn   261:     foreach my $item (keys(%recent)) {
1.136     albertel  262:         my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
                    263:         if ($thistime eq 'always_include') {
                    264:             $return_hash{$item} = &unescape($thisvalue);
                    265:             $n--;
                    266:         } else {
                    267:             $time_hash{$thistime} = $item;
1.133     albertel  268:         }
1.97      albertel  269:     }
                    270: 
                    271: # Sort by decreasing time and return key value pairs
                    272:     my $idx = 1;
1.136     albertel  273:     foreach my $item (reverse(sort(keys(%time_hash)))) {
                    274:        $return_hash{$time_hash{$item}} =
                    275:                   &unescape((split(/\&/,$recent{$time_hash{$item}}))[1]);
1.97      albertel  276:        if ($n && ($idx++ >= $n)) {last;}
                    277:     }
                    278: 
                    279:     return %return_hash;
                    280: }
                    281: 
1.136     albertel  282: sub get_recent_frozen {
                    283:     my ($area) = @_;
                    284:     my %recent=&Apache::lonnet::dump(&recent_filename($area));
                    285: 
                    286: # Create hash with all 'frozen' items
                    287:     my %return_hash = ();
                    288:     foreach my $item (keys(%recent)) {
                    289:         my ($thistime,$thisvalue)=(split(/\&/,$recent{$item}));
                    290:         if ($thistime eq 'always_include') {
                    291:             $return_hash{$item} = &unescape($thisvalue);
                    292:         }
                    293:     }
                    294:     return %return_hash;
                    295: }
                    296: 
1.97      albertel  297: 
1.41      www       298: 
1.26      matthew   299: =pod
                    300: 
                    301: =item textbox
                    302: 
                    303: =cut
                    304: 
                    305: ##############################################
                    306: ##############################################
                    307: sub textbox {
                    308:     my ($name,$value,$size,$special) = @_;
                    309:     $size = 40 if (! defined($size));
1.128     albertel  310:     $value = &HTML::Entities::encode($value,'<>&"');
1.26      matthew   311:     my $Str = '<input type="text" name="'.$name.'" size="'.$size.'" '.
                    312:         'value="'.$value.'" '.$special.' />';
                    313:     return $Str;
                    314: }
                    315: 
                    316: ##############################################
                    317: ##############################################
                    318: 
                    319: =pod
                    320: 
                    321: =item checkbox
                    322: 
                    323: =cut
                    324: 
                    325: ##############################################
                    326: ##############################################
                    327: sub checkbox {
1.68      matthew   328:     my ($name,$checked,$value) = @_;
                    329:     my $Str = '<input type="checkbox" name="'.$name.'" ';
                    330:     if (defined($value)) {
                    331:         $Str .= 'value="'.$value.'"';
                    332:     } 
                    333:     if ($checked) {
1.206     bisitz    334:         $Str .= ' checked="checked"';
1.68      matthew   335:     }
                    336:     $Str .= ' />';
1.26      matthew   337:     return $Str;
                    338: }
                    339: 
1.120     albertel  340: 
                    341: =pod
                    342: 
                    343: =item radiobutton
                    344: 
                    345: =cut
                    346: 
                    347: ##############################################
                    348: ##############################################
                    349: sub radio {
                    350:     my ($name,$checked,$value) = @_;
                    351:     my $Str = '<input type="radio" name="'.$name.'" ';
                    352:     if (defined($value)) {
                    353:         $Str .= 'value="'.$value.'"';
                    354:     } 
                    355:     if ($checked eq $value) {
1.206     bisitz    356:         $Str .= ' checked="checked"';
1.120     albertel  357:     }
                    358:     $Str .= ' />';
                    359:     return $Str;
                    360: }
                    361: 
1.10      matthew   362: ##############################################
                    363: ##############################################
                    364: 
                    365: =pod
                    366: 
                    367: =item &date_setter
                    368: 
1.22      matthew   369: &date_setter returns html and javascript for a compact date-setting form.
                    370: To retrieve values from it, use &get_date_from_form().
                    371: 
1.10      matthew   372: Inputs
                    373: 
                    374: =over 4
                    375: 
                    376: =item $dname 
                    377: 
                    378: The name to prepend to the form elements.  
                    379: The form elements defined will be dname_year, dname_month, dname_day,
                    380: dname_hour, dname_min, and dname_sec.
                    381: 
                    382: =item $currentvalue
                    383: 
                    384: The current setting for this time parameter.  A unix format time
                    385: (time in seconds since the beginning of Jan 1st, 1970, GMT.  
                    386: An undefined value is taken to indicate the value is the current time.
                    387: Also, to be explicit, a value of 'now' also indicates the current time.
                    388: 
1.26      matthew   389: =item $special
                    390: 
                    391: Additional html/javascript to be associated with each element in
                    392: the date_setter.  See lonparmset for example usage.
                    393: 
1.59      matthew   394: =item $includeempty 
                    395: 
                    396: =item $state
                    397: 
                    398: Specifies the initial state of the form elements.  Either 'disabled' or empty.
                    399: Defaults to empty, which indiciates the form elements are not disabled. 
                    400: 
1.22      matthew   401: =back
                    402: 
                    403: Bugs
                    404: 
                    405: The method used to restrict user input will fail in the year 2400.
                    406: 
1.10      matthew   407: =cut
                    408: 
                    409: ##############################################
                    410: ##############################################
                    411: sub date_setter {
1.67      matthew   412:     my ($formname,$dname,$currentvalue,$special,$includeempty,$state,
1.253.2.6  raeburn   413:         $no_hh_mm_ss,$defhour,$defmin,$defsec,$nolink,$hide_timezone) = @_;
1.175     raeburn   414:     my $now = time;
1.107     www       415:     my $wasdefined=1;
1.59      matthew   416:     if (! defined($state) || $state ne 'disabled') {
                    417:         $state = '';
                    418:     }
1.67      matthew   419:     if (! defined($no_hh_mm_ss)) {
                    420:         $no_hh_mm_ss = 0;
                    421:     }
1.110     www       422:     if ($currentvalue eq 'now') {
1.175     raeburn   423: 	$currentvalue = $now;
1.110     www       424:     }
                    425:     if ((!defined($currentvalue)) || ($currentvalue eq '')) {
                    426: 	$wasdefined=0;
                    427: 	if ($includeempty) {
                    428: 	    $currentvalue = 0;
                    429: 	} else {
1.175     raeburn   430: 	    $currentvalue = $now;
1.39      www       431: 	}
1.10      matthew   432:     }
                    433:     # other potentially useful values:     wkday,yrday,is_daylight_savings
1.175     raeburn   434:     my $tzname;
1.65      albertel  435:     my ($sec,$min,$hour,$mday,$month,$year)=('','',undef,'','','');
1.39      www       436:     if ($currentvalue) {
1.175     raeburn   437:         ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($currentvalue); 
1.39      www       438:     }
1.107     www       439:     unless ($wasdefined) {
1.175     raeburn   440:         ($tzname,$sec,$min,$hour,$mday,$month,$year) = &get_timedates($now);
1.110     www       441: 	if (($defhour) || ($defmin) || ($defsec)) {
                    442: 	    $sec=($defsec?$defsec:0);
                    443: 	    $min=($defmin?$defmin:0);
                    444: 	    $hour=($defhour?$defhour:0);
                    445: 	} elsif (!$includeempty) {
                    446: 	    $sec=0;
                    447: 	    $min=0;
                    448: 	    $hour=0;
                    449: 	}
1.107     www       450:     }
1.10      matthew   451:     my $result = "\n<!-- $dname date setting form -->\n";
                    452:     $result .= <<ENDJS;
1.135     albertel  453: <script type="text/javascript">
1.218     bisitz    454: // <![CDATA[
1.10      matthew   455:     function $dname\_checkday() {
                    456:         var day   = document.$formname.$dname\_day.value;
                    457:         var month = document.$formname.$dname\_month.value;
                    458:         var year  = document.$formname.$dname\_year.value;
                    459:         var valid = true;
                    460:         if (day < 1) {
                    461:             document.$formname.$dname\_day.value = 1;
                    462:         } 
                    463:         if (day > 31) {
                    464:             document.$formname.$dname\_day.value = 31;
                    465:         }
                    466:         if ((month == 1)  || (month == 3)  || (month == 5)  ||
                    467:             (month == 7)  || (month == 8)  || (month == 10) ||
                    468:             (month == 12)) {
                    469:             if (day > 31) {
                    470:                 document.$formname.$dname\_day.value = 31;
                    471:                 day = 31;
                    472:             }
                    473:         } else if (month == 2 ) {
                    474:             if ((year % 4 == 0) && (year % 100 != 0)) {
                    475:                 if (day > 29) {
                    476:                     document.$formname.$dname\_day.value = 29;
                    477:                 }
                    478:             } else if (day > 29) {
                    479:                 document.$formname.$dname\_day.value = 28;
                    480:             }
                    481:         } else if (day > 30) {
                    482:             document.$formname.$dname\_day.value = 30;
                    483:         }
                    484:     }
1.95      matthew   485:     
1.59      matthew   486:     function $dname\_disable() {
                    487:         document.$formname.$dname\_month.disabled=true;
                    488:         document.$formname.$dname\_day.disabled=true;
                    489:         document.$formname.$dname\_year.disabled=true;
                    490:         document.$formname.$dname\_hour.disabled=true;
                    491:         document.$formname.$dname\_minute.disabled=true;
                    492:         document.$formname.$dname\_second.disabled=true;
                    493:     }
                    494: 
                    495:     function $dname\_enable() {
                    496:         document.$formname.$dname\_month.disabled=false;
                    497:         document.$formname.$dname\_day.disabled=false;
                    498:         document.$formname.$dname\_year.disabled=false;
                    499:         document.$formname.$dname\_hour.disabled=false;
                    500:         document.$formname.$dname\_minute.disabled=false;
                    501:         document.$formname.$dname\_second.disabled=false;        
                    502:     }
                    503: 
1.29      www       504:     function $dname\_opencalendar() {
1.59      matthew   505:         if (! document.$formname.$dname\_month.disabled) {
                    506:             var calwin=window.open(
1.29      www       507: "/adm/announcements?pickdate=yes&formname=$formname&element=$dname&month="+
                    508: document.$formname.$dname\_month.value+"&year="+
                    509: document.$formname.$dname\_year.value,
                    510:              "LONCAPAcal",
                    511:               "height=350,width=350,scrollbars=yes,resizable=yes,menubar=no");
1.59      matthew   512:         }
1.29      www       513: 
                    514:     }
1.218     bisitz    515: // ]]>
1.10      matthew   516: </script>
                    517: ENDJS
1.192     bisitz    518:     $result .= '  <span class="LC_nobreak">';
1.96      albertel  519:     my $monthselector = qq{<select name="$dname\_month" $special $state onchange="javascript:$dname\_checkday()" >};
1.67      matthew   520:     # Month
1.10      matthew   521:     my @Months = qw/January February  March     April   May      June 
                    522:                     July    August    September October November December/;
                    523:     # Pad @Months with a bogus value to make indexing easier
                    524:     unshift(@Months,'If you can read this an error occurred');
1.95      matthew   525:     if ($includeempty) { $monthselector.="<option value=''></option>"; }
1.10      matthew   526:     for(my $m = 1;$m <=$#Months;$m++) {
1.228     bisitz    527:         $monthselector .= qq{      <option value="$m"};
                    528:         $monthselector .= ' selected="selected"' if ($m-1 eq $month);
                    529:         $monthselector .= '> '.&mt($Months[$m]).' </option>'."\n";
1.10      matthew   530:     }
1.95      matthew   531:     $monthselector.= '  </select>';
1.67      matthew   532:     # Day
1.96      albertel  533:     my $dayselector = qq{<input type="text" name="$dname\_day" $state value="$mday" size="3" $special onchange="javascript:$dname\_checkday()" />};
1.67      matthew   534:     # Year
1.226     bisitz    535:     my $yearselector = qq{<input type="text" name="$dname\_year" $state value="$year" size="5" $special onchange="javascript:$dname\_checkday()" />};
1.95      matthew   536:     #
                    537:     my $hourselector = qq{<select name="$dname\_hour" $special $state >};
                    538:     if ($includeempty) { 
                    539:         $hourselector.=qq{<option value=''></option>};
                    540:     }
                    541:     for (my $h = 0;$h<24;$h++) {
1.228     bisitz    542:         $hourselector .= qq{<option value="$h"};
                    543:         $hourselector .= ' selected="selected"' if (defined($hour) && $hour == $h);
1.95      matthew   544:         $hourselector .= ">";
                    545:         my $timest='';
                    546:         if ($h == 0) {
                    547:             $timest .= "12 am";
                    548:         } elsif($h == 12) {
                    549:             $timest .= "12 noon";
                    550:         } elsif($h < 12) {
                    551:             $timest .= "$h am";
                    552:         } else {
                    553:             $timest .= $h-12 ." pm";
                    554:         }
                    555:         $timest=&mt($timest);
                    556:         $hourselector .= $timest." </option>\n";
                    557:     }
                    558:     $hourselector .= "  </select>\n";
                    559:     my $minuteselector = qq{<input type="text" name="$dname\_minute" $special $state value="$min" size="3" />};
                    560:     my $secondselector= qq{<input type="text" name="$dname\_second" $special $state value="$sec" size="3" />};
1.134     raeburn   561:     my $cal_link;
                    562:     if (!$nolink) {
                    563:         $cal_link = qq{<a href="javascript:$dname\_opencalendar()">};
                    564:     }
1.95      matthew   565:     #
1.253.2.6  raeburn   566:     my $tzone;
                    567:     unless ($hide_timezone) {
                    568:         $tzone = ' '.$tzname.' ';
                    569:     }
1.95      matthew   570:     if ($no_hh_mm_ss) {
1.134     raeburn   571:         $result .= &mt('[_1] [_2] [_3] ',
1.174     raeburn   572:                        $monthselector,$dayselector,$yearselector).
                    573:                    $tzone;
1.134     raeburn   574:         if (!$nolink) {
1.141     albertel  575:             $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
1.134     raeburn   576:         }
1.95      matthew   577:     } else {
1.134     raeburn   578:         $result .= &mt('[_1] [_2] [_3] [_4] [_5]m [_6]s ',
                    579:                       $monthselector,$dayselector,$yearselector,
1.174     raeburn   580:                       $hourselector,$minuteselector,$secondselector).
                    581:                    $tzone;
1.134     raeburn   582:         if (!$nolink) {
1.141     albertel  583:             $result .= &mt('[_1]Select Date[_2]',$cal_link,'</a>');
1.134     raeburn   584:         }
1.67      matthew   585:     }
1.135     albertel  586:     $result .= "</span>\n<!-- end $dname date setting form -->\n";
1.10      matthew   587:     return $result;
                    588: }
                    589: 
1.175     raeburn   590: sub get_timedates {
                    591:     my ($epoch) = @_;
                    592:     my $dt = DateTime->from_epoch(epoch => $epoch)
                    593:                      ->set_time_zone(&Apache::lonlocal::gettimezone());
                    594:     my $tzname = $dt->time_zone_short_name();
                    595:     my $sec = $dt->second;
                    596:     my $min = $dt->minute;
                    597:     my $hour = $dt->hour;
                    598:     my $mday = $dt->day;
                    599:     my $month = $dt->month;
                    600:     if ($month) {
                    601:         $month --;
                    602:     }
                    603:     my $year = $dt->year;
                    604:     return ($tzname,$sec,$min,$hour,$mday,$month,$year);
                    605: }
1.166     banghart  606: 
                    607: sub build_url {
                    608:     my ($base, $fields)=@_;
                    609:     my $url;
                    610:     $url = $base.'?';
1.168     albertel  611:     foreach my $key (keys(%$fields)) {
                    612:         $url.=&escape($key).'='.&escape($$fields{$key}).'&amp;';
1.166     banghart  613:     }
                    614:     $url =~ s/&amp;$//;
                    615:     return $url;
                    616: }
                    617: 
                    618: 
1.10      matthew   619: ##############################################
                    620: ##############################################
                    621: 
1.22      matthew   622: =pod
                    623: 
1.10      matthew   624: =item &get_date_from_form
1.22      matthew   625: 
                    626: get_date_from_form retrieves the date specified in an &date_setter form.
1.10      matthew   627: 
                    628: Inputs:
                    629: 
                    630: =over 4
                    631: 
                    632: =item $dname
                    633: 
1.226     bisitz    634: The name passed to &date_setter, which prefixes the form elements.
1.10      matthew   635: 
                    636: =item $defaulttime
                    637: 
                    638: The unix time to use as the default in case of poor inputs.
                    639: 
                    640: =back
                    641: 
                    642: Returns: Unix time represented in the form.
                    643: 
                    644: =cut
                    645: 
                    646: ##############################################
                    647: ##############################################
                    648: sub get_date_from_form {
1.253.2.6  raeburn   649:     my ($dname,$timezone) = @_;
1.10      matthew   650:     my ($sec,$min,$hour,$day,$month,$year);
                    651:     #
1.104     albertel  652:     if (defined($env{'form.'.$dname.'_second'})) {
                    653:         my $tmpsec = $env{'form.'.$dname.'_second'};
1.10      matthew   654:         if (($tmpsec =~ /^\d+$/) && ($tmpsec >= 0) && ($tmpsec < 60)) {
                    655:             $sec = $tmpsec;
                    656:         }
1.64      albertel  657: 	if (!defined($tmpsec) || $tmpsec eq '') { $sec = 0; }
1.67      matthew   658:     } else {
                    659:         $sec = 0;
1.10      matthew   660:     }
1.104     albertel  661:     if (defined($env{'form.'.$dname.'_minute'})) {
                    662:         my $tmpmin = $env{'form.'.$dname.'_minute'};
1.10      matthew   663:         if (($tmpmin =~ /^\d+$/) && ($tmpmin >= 0) && ($tmpmin < 60)) {
                    664:             $min = $tmpmin;
                    665:         }
1.64      albertel  666: 	if (!defined($tmpmin) || $tmpmin eq '') { $min = 0; }
1.67      matthew   667:     } else {
                    668:         $min = 0;
1.10      matthew   669:     }
1.104     albertel  670:     if (defined($env{'form.'.$dname.'_hour'})) {
                    671:         my $tmphour = $env{'form.'.$dname.'_hour'};
1.33      matthew   672:         if (($tmphour =~ /^\d+$/) && ($tmphour >= 0) && ($tmphour < 24)) {
1.10      matthew   673:             $hour = $tmphour;
                    674:         }
1.67      matthew   675:     } else {
                    676:         $hour = 0;
1.10      matthew   677:     }
1.104     albertel  678:     if (defined($env{'form.'.$dname.'_day'})) {
                    679:         my $tmpday = $env{'form.'.$dname.'_day'};
1.10      matthew   680:         if (($tmpday =~ /^\d+$/) && ($tmpday > 0) && ($tmpday < 32)) {
                    681:             $day = $tmpday;
                    682:         }
                    683:     }
1.104     albertel  684:     if (defined($env{'form.'.$dname.'_month'})) {
                    685:         my $tmpmonth = $env{'form.'.$dname.'_month'};
1.10      matthew   686:         if (($tmpmonth =~ /^\d+$/) && ($tmpmonth > 0) && ($tmpmonth < 13)) {
1.175     raeburn   687:             $month = $tmpmonth;
1.10      matthew   688:         }
                    689:     }
1.104     albertel  690:     if (defined($env{'form.'.$dname.'_year'})) {
                    691:         my $tmpyear = $env{'form.'.$dname.'_year'};
1.175     raeburn   692:         if (($tmpyear =~ /^\d+$/) && ($tmpyear >= 1970)) {
                    693:             $year = $tmpyear;
1.10      matthew   694:         }
                    695:     }
1.175     raeburn   696:     if (($year<1970) || ($year>2037)) { return undef; }
1.33      matthew   697:     if (defined($sec) && defined($min)   && defined($hour) &&
1.175     raeburn   698:         defined($day) && defined($month) && defined($year)) {
1.253.2.6  raeburn   699:         if (defined($timezone)) {
                    700:             if (&Apache::lonlocal::gettimezone($timezone) eq 'local') {
                    701:                 $timezone = &Apache::lonlocal::gettimezone();
                    702:             }
1.253.2.7  raeburn   703:         } else {
                    704:             $timezone = &Apache::lonlocal::gettimezone();
1.253.2.6  raeburn   705:         }
1.175     raeburn   706:         my $dt = DateTime->new( year   => $year,
                    707:                                 month  => $month,
                    708:                                 day    => $day,
                    709:                                 hour   => $hour,
                    710:                                 minute => $min,
                    711:                                 second => $sec,
                    712:                                 time_zone => $timezone,
                    713:                               );
                    714:         my $epoch_time  = $dt->epoch;
                    715:         if ($epoch_time ne '') {
                    716:             return $epoch_time;
                    717:         } else {
                    718:             return undef;
                    719:         }
1.10      matthew   720:     } else {
                    721:         return undef;
                    722:     }
1.20      matthew   723: }
                    724: 
                    725: ##############################################
                    726: ##############################################
                    727: 
                    728: =pod
                    729: 
                    730: =item &pjump_javascript_definition()
                    731: 
                    732: Returns javascript defining the 'pjump' function, which opens up a
                    733: parameter setting wizard.
                    734: 
                    735: =cut
                    736: 
                    737: ##############################################
                    738: ##############################################
                    739: sub pjump_javascript_definition {
                    740:     my $Str = <<END;
1.109     www       741:     function pjump(type,dis,value,marker,ret,call,hour,min,sec) {
1.20      matthew   742:         parmwin=window.open("/adm/rat/parameter.html?type="+escape(type)
                    743:                  +"&value="+escape(value)+"&marker="+escape(marker)
                    744:                  +"&return="+escape(ret)
1.109     www       745:                  +"&call="+escape(call)+"&name="+escape(dis)
                    746:                  +"&defhour="+escape(hour)+"&defmin="+escape(min)
                    747:                  +"&defsec="+escape(sec),"LONCAPAparms",
1.20      matthew   748:                  "height=350,width=350,scrollbars=no,menubar=no");
                    749:     }
                    750: END
                    751:     return $Str;
1.10      matthew   752: }
                    753: 
                    754: ##############################################
                    755: ##############################################
1.17      matthew   756: 
                    757: =pod
                    758: 
                    759: =item &javascript_nothing()
                    760: 
                    761: Return an appropriate null for the users browser.  This is used
                    762: as the first arguement for window.open calls when you want a blank
                    763: window that you can then write to.
                    764: 
                    765: =cut
                    766: 
                    767: ##############################################
                    768: ##############################################
                    769: sub javascript_nothing {
                    770:     # mozilla and other browsers work with "''", but IE on mac does not.
                    771:     my $nothing = "''";
                    772:     my $user_browser;
                    773:     my $user_os;
1.104     albertel  774:     $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
                    775:     $user_os      = $env{'browser.os'}   if (exists($env{'browser.os'}));
1.17      matthew   776:     if (! defined($user_browser) || ! defined($user_os)) {
                    777:         (undef,$user_browser,undef,undef,undef,$user_os) = 
                    778:                            &Apache::loncommon::decode_user_agent();
                    779:     }
                    780:     if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
                    781:         $nothing = "'javascript:void(0);'";
                    782:     }
                    783:     return $nothing;
                    784: }
                    785: 
1.90      www       786: ##############################################
                    787: ##############################################
                    788: sub javascript_docopen {
1.171     albertel  789:     my ($mimetype) = @_;
                    790:     $mimetype ||= 'text/html';
1.90      www       791:     # safari does not understand document.open() and loads "text/html"
                    792:     my $nothing = "''";
                    793:     my $user_browser;
                    794:     my $user_os;
1.104     albertel  795:     $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
                    796:     $user_os      = $env{'browser.os'}   if (exists($env{'browser.os'}));
1.90      www       797:     if (! defined($user_browser) || ! defined($user_os)) {
                    798:         (undef,$user_browser,undef,undef,undef,$user_os) = 
                    799:                            &Apache::loncommon::decode_user_agent();
                    800:     }
                    801:     if ($user_browser eq 'safari' && $user_os =~ 'mac') {
                    802:         $nothing = "document.clear()";
                    803:     } else {
1.171     albertel  804: 	$nothing = "document.open('$mimetype','replace')";
1.90      www       805:     }
                    806:     return $nothing;
                    807: }
                    808: 
1.21      matthew   809: 
1.17      matthew   810: ##############################################
                    811: ##############################################
                    812: 
1.21      matthew   813: =pod
1.17      matthew   814: 
1.21      matthew   815: =item &StatusOptions()
1.10      matthew   816: 
1.21      matthew   817: Returns html for a selection box which allows the user to choose the
                    818: enrollment status of students.  The selection box name is 'Status'.
1.6       stredwic  819: 
1.21      matthew   820: Inputs:
1.6       stredwic  821: 
1.21      matthew   822: $status: the currently selected status.  If undefined the value of
1.104     albertel  823: $env{'form.Status'} is taken.  If that is undefined, a value of 'Active'
1.21      matthew   824: is used.
1.6       stredwic  825: 
1.21      matthew   826: $formname: The name of the form.  If defined the onchange attribute of
                    827: the selection box is set to document.$formname.submit().
1.6       stredwic  828: 
1.21      matthew   829: $size: the size (number of lines) of the selection box.
1.6       stredwic  830: 
1.27      matthew   831: $onchange: javascript to use when the value is changed.  Enclosed in 
                    832: double quotes, ""s, not single quotes.
                    833: 
1.21      matthew   834: Returns: a perl string as described.
1.1       stredwic  835: 
1.21      matthew   836: =cut
1.9       stredwic  837: 
1.21      matthew   838: ##############################################
                    839: ##############################################
                    840: sub StatusOptions {
1.165     banghart  841:     my ($status, $formName,$size,$onchange,$mult)=@_;
1.21      matthew   842:     $size = 1 if (!defined($size));
                    843:     if (! defined($status)) {
                    844:         $status = 'Active';
1.104     albertel  845:         $status = $env{'form.Status'} if (exists($env{'form.Status'}));
1.9       stredwic  846:     }
1.1       stredwic  847: 
                    848:     my $Str = '';
                    849:     $Str .= '<select name="Status"';
1.165     banghart  850:     if (defined($mult)){
                    851:         $Str .= ' multiple="multiple" ';
                    852:     }
1.27      matthew   853:     if(defined($formName) && $formName ne '' && ! defined($onchange)) {
1.1       stredwic  854:         $Str .= ' onchange="document.'.$formName.'.submit()"';
1.27      matthew   855:     }
                    856:     if (defined($onchange)) {
                    857:         $Str .= ' onchange="'.$onchange.'"';
1.1       stredwic  858:     }
1.21      matthew   859:     $Str .= ' size="'.$size.'" ';
1.1       stredwic  860:     $Str .= '>'."\n";
1.153     raeburn   861:     foreach my $type (['Active',  &mt('Currently Has Access')],
                    862: 		      ['Future',  &mt('Will Have Future Access')],
                    863: 		      ['Expired', &mt('Previously Had Access')],
                    864: 		      ['Any',     &mt('Any Access Status')]) {
1.151     albertel  865: 	my ($name,$label) = @$type;
                    866: 	$Str .= '<option value="'.$name.'" ';
                    867: 	if ($status eq $name) {
                    868: 	    $Str .= 'selected="selected" ';
                    869: 	}
                    870: 	$Str .= '>'.$label.'</option>'."\n";
                    871:     }
                    872: 
1.1       stredwic  873:     $Str .= '</select>'."\n";
1.7       stredwic  874: }
1.12      matthew   875: 
                    876: ########################################################
                    877: ########################################################
1.7       stredwic  878: 
1.23      matthew   879: =pod
                    880: 
                    881: =item Progess Window Handling Routines
                    882: 
                    883: These routines handle the creation, update, increment, and closure of 
                    884: progress windows.  The progress window reports to the user the number
                    885: of items completed and an estimate of the time required to complete the rest.
                    886: 
                    887: =over 4
                    888: 
                    889: 
                    890: =item &Create_PrgWin
                    891: 
                    892: Writes javascript to the client to open a progress window and returns a
                    893: data structure used for bookkeeping.
                    894: 
                    895: Inputs
                    896: 
                    897: =over 4
                    898: 
                    899: =item $r Apache request
                    900: 
                    901: =item $title The title of the progress window
                    902: 
                    903: =item $heading A description (usually 1 line) of the process being initiated.
                    904: 
                    905: =item $number_to_do The total number of items being processed.
1.50      albertel  906: 
                    907: =item $type Either 'popup' or 'inline' (popup is assumed if nothing is
                    908:        specified)
                    909: 
1.51      albertel  910: =item $width Specify the width in charaters of the input field.
                    911: 
1.50      albertel  912: =item $formname Only useful in the inline case, if a form already exists, this needs to be used and specfiy the name of the form, otherwise the Progress line will be created in a new form of it's own
                    913: 
                    914: =item $inputname Only useful in the inline case, if a form and an input of type text exists, use this to specify the name of the input field 
1.23      matthew   915: 
                    916: =back
                    917: 
                    918: Returns a hash containing the progress state data structure.
                    919: 
                    920: 
                    921: =item &Update_PrgWin
                    922: 
                    923: Updates the text in the progress indicator.  Does not increment the count.
                    924: See &Increment_PrgWin.
                    925: 
                    926: Inputs:
                    927: 
                    928: =over 4
                    929: 
                    930: =item $r Apache request
                    931: 
                    932: =item $prog_state Pointer to the data structure returned by &Create_PrgWin
                    933: 
                    934: =item $displaystring The string to write to the status indicator
                    935: 
                    936: =back
                    937: 
                    938: Returns: none
                    939: 
                    940: 
                    941: =item Increment_PrgWin
                    942: 
                    943: Increment the count of items completed for the progress window by 1.  
                    944: 
                    945: Inputs:
                    946: 
                    947: =over 4
                    948: 
                    949: =item $r Apache request
                    950: 
                    951: =item $prog_state Pointer to the data structure returned by Create_PrgWin
                    952: 
                    953: =item $extraInfo A description of the items being iterated over.  Typically
                    954: 'student'.
                    955: 
                    956: =back
                    957: 
                    958: Returns: none
                    959: 
                    960: 
                    961: =item Close_PrgWin
                    962: 
                    963: Closes the progress window.
                    964: 
                    965: Inputs:
                    966: 
                    967: =over 4 
                    968: 
                    969: =item $r Apache request
                    970: 
                    971: =item $prog_state Pointer to the data structure returned by Create_PrgWin
                    972: 
                    973: =back
                    974: 
                    975: Returns: none
                    976: 
                    977: =back
                    978: 
                    979: =cut
                    980: 
                    981: ########################################################
                    982: ########################################################
                    983: 
1.51      albertel  984: my $uniq=0;
                    985: sub get_uniq_name {
                    986:     $uniq++;
                    987:     return 'uniquename'.$uniq;
                    988: }
                    989: 
1.7       stredwic  990: # Create progress
                    991: sub Create_PrgWin {
1.51      albertel  992:     my ($r, $title, $heading, $number_to_do,$type,$width,$formname,
                    993: 	$inputname)=@_;
1.49      albertel  994:     if (!defined($type)) { $type='popup'; }
1.51      albertel  995:     if (!defined($width)) { $width=55; }
1.49      albertel  996:     my %prog_state;
                    997:     $prog_state{'type'}=$type;
                    998:     if ($type eq 'popup') {
                    999: 	$prog_state{'window'}='popwin';
1.122     albertel 1000: 	my $start_page =
                   1001: 	    &Apache::loncommon::start_page($title,undef,
                   1002: 					   {'only_body' => 1,
                   1003: 					    'bgcolor'   => '#88DDFF',
                   1004: 					    'js_ready'  => 1});
                   1005: 	my $end_page = &Apache::loncommon::end_page({'js_ready'  => 1});
                   1006: 
1.49      albertel 1007: 	#the whole function called through timeout is due to issues
                   1008: 	#in mozilla Read BUG #2665 if you want to know the whole story
1.230     bisitz   1009: 	&r_print($r,&Apache::lonhtmlcommon::scripttag(
1.49      albertel 1010:         "var popwin;
                   1011:          function openpopwin () {
                   1012:          popwin=open(\'\',\'popwin\',\'width=400,height=100\');".
1.122     albertel 1013:         "popwin.document.writeln(\'".$start_page.
1.170     albertel 1014:               "<h4>".&mt("$heading")."<\/h4>".
1.212     bisitz   1015:               "<form action=\"\" name=\"popremain\" method=\"post\">".
1.51      albertel 1016:               '<input type="text" size="'.$width.'" name="remaining" value="'.
1.131     albertel 1017: 	      &mt('Starting').'" /><\\/form>'.$end_page.
1.122     albertel 1018:               "\');".
1.49      albertel 1019:         "popwin.document.close();}".
1.230     bisitz   1020:         "\nwindow.setTimeout(openpopwin,0)"
                   1021:     ));
1.49      albertel 1022: 	$prog_state{'formname'}='popremain';
                   1023: 	$prog_state{'inputname'}="remaining";
                   1024:     } elsif ($type eq 'inline') {
                   1025: 	$prog_state{'window'}='window';
                   1026: 	if (!$formname) {
1.51      albertel 1027: 	    $prog_state{'formname'}=&get_uniq_name();
1.159     banghart 1028: 	    &r_print($r,'<form action="" name="'.$prog_state{'formname'}.'">');
1.49      albertel 1029: 	} else {
                   1030: 	    $prog_state{'formname'}=$formname;
                   1031: 	}
                   1032: 	if (!$inputname) {
1.51      albertel 1033: 	    $prog_state{'inputname'}=&get_uniq_name();
1.170     albertel 1034: 	    &r_print($r,&mt("$heading [_1]",' <input type="text" name="'.$prog_state{'inputname'}.'" size="'.$width.'" />'));
1.49      albertel 1035: 	} else {
                   1036: 	    $prog_state{'inputname'}=$inputname;
                   1037: 	    
                   1038: 	}
                   1039: 	if (!$formname) { &r_print($r,'</form>'); }
                   1040: 	&Update_PrgWin($r,\%prog_state,&mt('Starting'));
                   1041:     }
1.7       stredwic 1042: 
1.16      albertel 1043:     $prog_state{'done'}=0;
1.23      matthew  1044:     $prog_state{'firststart'}=&Time::HiRes::time();
                   1045:     $prog_state{'laststart'}=&Time::HiRes::time();
1.16      albertel 1046:     $prog_state{'max'}=$number_to_do;
1.49      albertel 1047:     
1.14      albertel 1048:     return %prog_state;
1.7       stredwic 1049: }
                   1050: 
                   1051: # update progress
                   1052: sub Update_PrgWin {
1.14      albertel 1053:     my ($r,$prog_state,$displayString)=@_;
1.230     bisitz   1054:     &r_print($r,&Apache::lonhtmlcommon::scripttag(
1.218     bisitz   1055:         $$prog_state{'window'}.'.document.'.
1.230     bisitz   1056:         $$prog_state{'formname'}.'.'.
                   1057:         $$prog_state{'inputname'}.'.value="'.
                   1058:         $displayString.'";'
                   1059:     ));
1.23      matthew  1060:     $$prog_state{'laststart'}=&Time::HiRes::time();
1.14      albertel 1061: }
                   1062: 
                   1063: # increment progress state
                   1064: sub Increment_PrgWin {
                   1065:     my ($r,$prog_state,$extraInfo)=@_;
1.16      albertel 1066:     $$prog_state{'done'}++;
1.23      matthew  1067:     my $time_est= (&Time::HiRes::time() - $$prog_state{'firststart'})/
                   1068:         $$prog_state{'done'} *
1.16      albertel 1069: 	($$prog_state{'max'}-$$prog_state{'done'});
                   1070:     $time_est = int($time_est);
1.80      matthew  1071:     #
                   1072:     my $min = int($time_est/60);
                   1073:     my $sec = $time_est % 60;
                   1074:     # 
                   1075:     my $str;
1.91      albertel 1076:     if ($min == 0 && $sec > 1) {
1.80      matthew  1077:         $str = '[_2] seconds';
1.91      albertel 1078:     } elsif ($min == 1 && $sec > 1) {
                   1079:         $str = '1 minute [_2] seconds';
1.80      matthew  1080:     } elsif ($min == 1 && $sec < 2) {
                   1081:         $str = '1 minute';
                   1082:     } elsif ($min < 10 && $sec > 1) {
                   1083:         $str = '[_1] minutes, [_2] seconds';
1.81      matthew  1084:     } elsif ($min >= 10 || $sec < 2) {
1.80      matthew  1085:         $str = '[_1] minutes';
1.16      albertel 1086:     }
1.80      matthew  1087:     $time_est = &mt($str,$min,$sec);
                   1088:     #
1.23      matthew  1089:     my $lasttime = &Time::HiRes::time()-$$prog_state{'laststart'};
                   1090:     if ($lasttime > 9) {
                   1091:         $lasttime = int($lasttime);
                   1092:     } elsif ($lasttime < 0.01) {
                   1093:         $lasttime = 0;
                   1094:     } else {
                   1095:         $lasttime = sprintf("%3.2f",$lasttime);
                   1096:     }
1.19      matthew  1097:     if ($lasttime == 1) {
1.32      www      1098:         $lasttime = '('.$lasttime.' '.&mt('second for').' '.$extraInfo.')';
1.19      matthew  1099:     } else {
1.32      www      1100:         $lasttime = '('.$lasttime.' '.&mt('seconds for').' '.$extraInfo.')';
1.28      matthew  1101:     }
                   1102:     #
1.104     albertel 1103:     my $user_browser = $env{'browser.type'} if (exists($env{'browser.type'}));
                   1104:     my $user_os      = $env{'browser.os'}   if (exists($env{'browser.os'}));
1.28      matthew  1105:     if (! defined($user_browser) || ! defined($user_os)) {
                   1106:         (undef,$user_browser,undef,undef,undef,$user_os) = 
                   1107:                            &Apache::loncommon::decode_user_agent();
                   1108:     }
                   1109:     if ($user_browser eq 'explorer' && $user_os =~ 'mac') {
                   1110:         $lasttime = '';
1.19      matthew  1111:     }
1.230     bisitz   1112:     &r_print($r,&Apache::lonhtmlcommon::scripttag(
1.218     bisitz   1113:         $$prog_state{'window'}.'.document.'.
1.230     bisitz   1114:         $$prog_state{'formname'}.'.'.
                   1115:         $$prog_state{'inputname'}.'.value="'.
                   1116:         $$prog_state{'done'}.'/'.$$prog_state{'max'}.
                   1117:         ': '.$time_est.' '.&mt('remaining').' '.$lasttime.'";'
                   1118:     ));
1.23      matthew  1119:     $$prog_state{'laststart'}=&Time::HiRes::time();
1.7       stredwic 1120: }
                   1121: 
                   1122: # close Progress Line
                   1123: sub Close_PrgWin {
1.14      albertel 1124:     my ($r,$prog_state)=@_;
1.49      albertel 1125:     if ($$prog_state{'type'} eq 'popup') {
1.230     bisitz   1126:         &r_print($r,&Apache::lonhtmlcommon::scripttag(
                   1127:             'popwin.close()'
                   1128:         ));
1.49      albertel 1129:     } elsif ($$prog_state{'type'} eq 'inline') {
                   1130: 	&Update_PrgWin($r,$prog_state,&mt('Done'));
                   1131:     }
1.48      albertel 1132:     undef(%$prog_state);
                   1133: }
                   1134: 
                   1135: sub r_print {
                   1136:     my ($r,$to_print)=@_;
                   1137:     if ($r) {
                   1138: 	$r->print($to_print);
                   1139: 	$r->rflush();
1.47      sakharuk 1140:     } else {
1.48      albertel 1141: 	print($to_print);
1.47      sakharuk 1142:     }
1.1       stredwic 1143: }
1.34      www      1144: 
                   1145: # ------------------------------------------------------- Puts directory header
                   1146: 
                   1147: sub crumbs {
1.252     bisitz   1148:     my ($uri,$target,$prefix,$form,$skiplast)=@_;
1.100     raeburn  1149:     if ($target) {
                   1150:         $target = ' target="'.
                   1151:                   &Apache::loncommon::escape_single($target).'"';
                   1152:     }
1.252     bisitz   1153:     my $output='<span class="LC_filename">';
                   1154:     $output.=$prefix.'/';
1.249     raeburn  1155:     if (($env{'user.adv'}) || ($env{'user.author'})) {
1.252     bisitz   1156:         my $path=$prefix.'/';
                   1157:         foreach my $dir (split('/',$uri)) {
1.99      matthew  1158:             if (! $dir) { next; }
                   1159:             $path .= $dir;
1.252     bisitz   1160:             if ($path eq $uri) {
                   1161:                 if ($skiplast) {
                   1162:                     $output.=$dir;
1.132     www      1163:                     last;
1.252     bisitz   1164:                 } 
                   1165:             } else {
                   1166:                 $path.='/'; 
                   1167:             }
1.157     albertel 1168:             my $href_path = &HTML::Entities::encode($path,'<>&"');
1.252     bisitz   1169:             &Apache::loncommon::inhibit_menu_check(\$href_path);
                   1170:             if ($form) {
                   1171:                 my $href = 'javascript:'.$form.".action='".$href_path."';".$form.'.submit();';
                   1172:                 $output.=qq{<a href="$href"$target>$dir</a>/};
                   1173:             } else {
                   1174:                 $output.=qq{<a href="$href_path"$target>$dir</a>/};
                   1175:             }
                   1176:         }
1.35      www      1177:     } else {
1.252     bisitz   1178:         foreach my $dir (split('/',$uri)) {
1.149     albertel 1179:             if (! $dir) { next; }
1.252     bisitz   1180:             $output.=$dir.'/';
                   1181:         }
1.34      www      1182:     }
1.149     albertel 1183:     if ($uri !~ m|/$|) { $output=~s|/$||; }
1.252     bisitz   1184:     $output.='</span>';
                   1185: 
                   1186:     return $output;
1.34      www      1187: }
                   1188: 
1.85      www      1189: # --------------------- A function that generates a window for the spellchecker
                   1190: 
                   1191: sub spellheader {
1.123     albertel 1192:     my $start_page=
                   1193: 	&Apache::loncommon::start_page('Speller Suggestions',undef,
1.140     albertel 1194: 				       {'only_body'   => 1,
                   1195: 					'js_ready'    => 1,
                   1196: 					'bgcolor'     => '#DDDDDD',
                   1197: 				        'add_entries' => {
                   1198: 					    'onload' => 
                   1199:                                                'document.forms.spellcheckform.submit()',
                   1200:                                              }
                   1201: 				        });
1.123     albertel 1202:     my $end_page=
                   1203: 	&Apache::loncommon::end_page({'js_ready'  => 1}); 
                   1204: 
1.105     www      1205:     my $nothing=&javascript_nothing();
1.85      www      1206:     return (<<ENDCHECK);
                   1207: <script type="text/javascript"> 
1.218     bisitz   1208: // <![CDATA[
1.92      albertel 1209: //<!-- BEGIN LON-CAPA Internal
1.85      www      1210: var checkwin;
                   1211: 
1.140     albertel 1212: function spellcheckerwindow(string) {
                   1213:     var esc_string = string.replace(/\"/g,'&quot;');
1.105     www      1214:     checkwin=window.open($nothing,'spellcheckwin','height=320,width=280,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1.154     albertel 1215:     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      1216:     checkwin.document.close();
                   1217: }
1.92      albertel 1218: // END LON-CAPA Internal -->
1.218     bisitz   1219: // ]]>
1.85      www      1220: </script>
                   1221: ENDCHECK
                   1222: }
                   1223: 
                   1224: # ---------------------------------- Generate link to spell checker for a field
                   1225: 
                   1226: sub spelllink {
                   1227:     my ($form,$field)=@_;
                   1228:     my $linktext=&mt('Check Spelling');
                   1229:     return (<<ENDLINK);
1.140     albertel 1230: <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      1231: ENDLINK
                   1232: }
                   1233: 
1.52      www      1234: # ------------------------------------------------- Output headers for HTMLArea
                   1235: 
1.124     albertel 1236: {
                   1237:     my @htmlareafields;
                   1238:     sub init_htmlareafields {
                   1239: 	undef(@htmlareafields);
                   1240:     }
                   1241:     
                   1242:     sub add_htmlareafields {
                   1243: 	my (@newfields) = @_;
                   1244: 	push(@htmlareafields,@newfields);
                   1245:     }
                   1246: 
                   1247:     sub get_htmlareafields {
                   1248: 	return @htmlareafields;
                   1249:     }
                   1250: }
                   1251: 
1.52      www      1252: sub htmlareaheaders {
1.167     albertel 1253:     return if (&htmlareablocked());
                   1254:     return if (!&htmlareabrowser());
1.52      www      1255:     return (<<ENDHEADERS);
1.167     albertel 1256: <script type="text/javascript" src="/fckeditor/fckeditor.js"></script>
1.52      www      1257: ENDHEADERS
                   1258: }
                   1259: 
1.76      www      1260: # ----------------------------------------------------------------- Preferences
                   1261: 
                   1262: sub disablelink {
1.77      www      1263:     my @fields=@_;
                   1264:     if (defined($#fields)) {
                   1265: 	unless ($#fields>=0) { return ''; }
                   1266:     }
1.130     www      1267:     return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=off&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Disable WYSIWYG Editor').'</a>';
1.76      www      1268: }
                   1269: 
                   1270: sub enablelink {
1.77      www      1271:     my @fields=@_;
                   1272:     if (defined($#fields)) {
                   1273: 	unless ($#fields>=0) { return ''; }
                   1274:     }
1.130     www      1275:     return '<a href="'.&HTML::Entities::encode('/adm/preferences?action=set_wysiwyg&wysiwyg=on&returnurl=','<>&"').&escape($ENV{'REQUEST_URI'}).'">'.&mt('Enable WYSIWYG Editor').'</a>';
1.76      www      1276: }
                   1277: 
1.167     albertel 1278: # ------------------------------------------------- lang to use in html editor
                   1279: sub htmlarea_lang {
                   1280:     my $lang='en';
                   1281:     if (&mt('htmlarea_lang') ne 'htmlarea_lang') {
                   1282: 	$lang=&mt('htmlarea_lang');
                   1283:     }
                   1284:     return $lang;
                   1285: }
                   1286: 
1.72      www      1287: # ----------------------------------------- Script to activate only some fields
                   1288: 
                   1289: sub htmlareaselectactive {
1.73      www      1290:     my @fields=@_;
1.76      www      1291:     unless (&htmlareabrowser()) { return ''; }
1.77      www      1292:     if (&htmlareablocked()) { return '<br />'.&enablelink(@fields); }
1.230     bisitz   1293:     my $output='<script type="text/javascript" defer="1">'."\n"
                   1294:               .'// <![CDATA['."\n";
1.167     albertel 1295:     my $lang = &htmlarea_lang();
                   1296:     foreach my $field (@fields) {
                   1297: 	$output.="
                   1298: {
                   1299:     var oFCKeditor = new FCKeditor('$field');
                   1300:     oFCKeditor.Config['CustomConfigurationsPath'] = 
                   1301: 	'/fckeditor/loncapaconfig.js';    
                   1302:     oFCKeditor.ReplaceTextarea();
                   1303:     oFCKeditor.Config['AutoDetectLanguage'] = false;
                   1304:     oFCKeditor.Config['DefaultLanguage'] = '$lang';
                   1305: }";
1.72      www      1306:     }
1.218     bisitz   1307:     $output.="\nwindow.status='Activated Editfields';\n"
1.230     bisitz   1308:             .'// ]]>'."\n"
1.218     bisitz   1309:             .'</script><br />'.
1.77      www      1310: 	&disablelink(@fields);
1.72      www      1311:     return $output;
                   1312: }
                   1313: 
1.61      www      1314: # --------------------------------------------------------------------- Blocked
                   1315: 
                   1316: sub htmlareablocked {
1.104     albertel 1317:     unless ($env{'environment.wysiwygeditor'} eq 'on') { return 1; }
1.71      www      1318:     return 0;
1.52      www      1319: }
                   1320: 
                   1321: # ---------------------------------------- Browser capable of running HTMLArea?
                   1322: 
                   1323: sub htmlareabrowser {
                   1324:     return 1;
                   1325: }
1.53      matthew  1326: 
                   1327: ############################################################
                   1328: ############################################################
                   1329: 
                   1330: =pod
                   1331: 
                   1332: =item breadcrumbs
                   1333: 
                   1334: Compiles the previously registered breadcrumbs into an series of links.
                   1335: Additionally supports a 'component', which will be displayed on the
1.223     droeschl 1336: right side of the breadcrumbs enclosing div (without a link).
1.53      matthew  1337: A link to help for the component will be included if one is specified.
                   1338: 
                   1339: All inputs can be undef without problems.
                   1340: 
1.223     droeschl 1341: Inputs: $component (the text on the right side of the breadcrumbs trail),
1.53      matthew  1342:         $component_help
1.63      albertel 1343:         $menulink (boolean, controls whether to include a link to /adm/menu)
1.138     albertel 1344:         $helplink (if 'nohelp' don't include the orange help link)
                   1345:         $css_class (optional name for the class to apply to the table for CSS)
1.197     raeburn  1346:         $no_mt (optional flag, 1 if &mt() is _not_ to be applied to $component
                   1347:            when including the text on the right.
1.53      matthew  1348: Returns a string containing breadcrumbs for the current page.
                   1349: 
                   1350: =item clear_breadcrumbs
                   1351: 
                   1352: Clears the previously stored breadcrumbs.
                   1353: 
                   1354: =item add_breadcrumb
                   1355: 
                   1356: Pushes a breadcrumb on the stack of crumbs.
                   1357: 
                   1358: input: $breadcrumb, a hash reference.  The keys 'href','title', and 'text'
                   1359: are required.  If present the keys 'faq' and 'bug' will be used to provide
1.156     albertel 1360: links to the FAQ and bug sites. If the key 'no_mt' is present the 'title' 
                   1361: and 'text' values won't be sent through &mt()
1.53      matthew  1362: 
                   1363: returns: nothing    
                   1364: 
                   1365: =cut
                   1366: 
                   1367: ############################################################
                   1368: ############################################################
                   1369: {
                   1370:     my @Crumbs;
1.242     droeschl 1371:     my %tools = ();
1.57      matthew  1372:     
1.53      matthew  1373:     sub breadcrumbs {
1.216     bisitz   1374:         my ($component,$component_help,$menulink,$helplink,$css_class,$no_mt, $CourseBreadcrumbs) = @_;
1.53      matthew  1375:         #
1.215     droeschl 1376:         $css_class ||= 'LC_breadcrumbs';
1.205     amueller 1377: 
1.57      matthew  1378:         # Make the faq and bug data cascade
1.223     droeschl 1379:         my $faq  = '';
                   1380:         my $bug  = '';
                   1381:         my $help = '';
1.215     droeschl 1382:         # Crumb Symbol
1.223     droeschl 1383:         my $crumbsymbol = '&raquo;';
1.60      www      1384:         # The last breadcrumb does not have a link, so handle it separately.
1.53      matthew  1385:         my $last = pop(@Crumbs);
1.57      matthew  1386:         #
1.70      matthew  1387:         # The first one should be the course or a menu link
1.215     droeschl 1388:         if (!defined($menulink)) { $menulink=1; }
1.70      matthew  1389:         if ($menulink) {
1.253.2.2  raeburn  1390:             if ($menulink eq '_nomenu') {
                   1391:                 return unless($last);
                   1392:             } else {
1.253.2.1  raeburn  1393:                 my $description = 'Menu';
1.253.2.4  raeburn  1394:                 my $href = '/adm/menu';
                   1395:                 my $tooltip = 'Go to main menu';
1.253.2.1  raeburn  1396:                 my $no_mt_descr = 0;
1.253.2.3  raeburn  1397:                 if ((exists($env{'request.course.id'})) &&
1.253.2.5  raeburn  1398:                     ($env{'request.course.id'} ne '') && 
                   1399:                     !($env{'form.context'} eq 'requestcrs')) {
1.253.2.8! raeburn  1400:                     if ((&Apache::loncommon::needs_gci_custom()) || ($env{'user.domain'} =~ /^\w+citest$/)) {
1.253.2.5  raeburn  1401:                         if ($env{'environment.remotenavmap'} eq 'on') {
                   1402:                             # open link using javascript when remote navmap is activated
                   1403:                             $href = "javascript:gonav('/adm/navmaps');";
                   1404:                         } else {
                   1405:                             $href = '/adm/navmaps';
                   1406:                         }
1.253.2.4  raeburn  1407:                         $tooltip = 'Contents';
                   1408:                     }
                   1409:                     if ($env{'course.'.$env{'request.course.id'}.'.description'} ne '') {
                   1410:                         $description =
                   1411:                             $env{'course.'.$env{'request.course.id'}.'.description'};
                   1412:                         $no_mt_descr = 1;
                   1413:                     }
1.253.2.3  raeburn  1414:                 }
1.253.2.4  raeburn  1415:                 $menulink =  {  href   => $href,
                   1416:                                 title  => $tooltip,
                   1417:                                 target => '_top',
                   1418:                                 text   => $description,
                   1419:                                 no_mt  => $no_mt_descr, };
                   1420:                 if ($last) {
1.253.2.2  raeburn  1421:                     #$last set, so we have some crumbs
                   1422:                     unshift(@Crumbs,$menulink);
                   1423:                 } else {
                   1424:                     #only menulink crumb present
                   1425:                     $last = $menulink;
                   1426:                 }
1.215     droeschl 1427:             }
1.53      matthew  1428:         }
1.219     droeschl 1429:         my $links = join "", 
1.53      matthew  1430:                  map {
1.219     droeschl 1431:                      $faq  = $_->{'faq'}  if (exists($_->{'faq'}));
                   1432:                      $bug  = $_->{'bug'}  if (exists($_->{'bug'}));
1.106     www      1433:                      $help = $_->{'help'} if (exists($_->{'help'}));
1.219     droeschl 1434: 
1.253.2.3  raeburn  1435:                      my $result = $_->{no_mt} ? $_->{text} : mt($_->{text});
                   1436: 
                   1437:                      if ($_->{href}){
                   1438:                          $result = htmltag( 'a', $result, 
1.219     droeschl 1439:                                            { 
                   1440:                                                href   => $_->{href},
1.223     droeschl 1441:                                                title  => $_->{no_mt} ? 
                   1442:                                                 $_->{title} : mt($_->{title}),
1.219     droeschl 1443:                                                target => $_->{target},
                   1444:                                            });
1.253.2.3  raeburn  1445:                      }
                   1446: 
1.223     droeschl 1447:                      $result = htmltag( 'li', "$result $crumbsymbol");
1.253.2.3  raeburn  1448:                  } @Crumbs;
1.223     droeschl 1449: 
                   1450:         #should the last Element be translated?
1.253.2.3  raeburn  1451: 
                   1452:         my $lasttext = $last->{'no_mt'} ? $last->{'text'}
                   1453:                      : mt( $last->{'text'} );
                   1454: 
                   1455:         # last breadcrumb is the first order heading of a page
                   1456:         # for course breadcrumbs it's just bold
                   1457:         $links .= htmltag( 'li', htmltag($CourseBreadcrumbs ? 'b' : 'h1',
1.253.2.4  raeburn  1458:                            $lasttext), {title => $lasttext});
1.223     droeschl 1459: 
1.54      matthew  1460:         my $icons = '';
1.223     droeschl 1461:         $faq  = $last->{'faq'}  if (exists($last->{'faq'}));
                   1462:         $bug  = $last->{'bug'}  if (exists($last->{'bug'}));
1.106     www      1463:         $help = $last->{'help'} if (exists($last->{'help'}));
                   1464:         $component_help=($component_help?$component_help:$help);
1.145     albertel 1465: #        if ($faq ne '') {
                   1466: #            $icons .= &Apache::loncommon::help_open_faq($faq);
                   1467: #        }
1.79      raeburn  1468: #        if ($bug ne '') {
                   1469: #            $icons .= &Apache::loncommon::help_open_bug($bug);
                   1470: #        }
1.223     droeschl 1471:         if ($faq ne '' || $component_help ne '' || $bug ne '') {
                   1472:             $icons .= &Apache::loncommon::help_open_menu($component,
                   1473:                                                          $component_help,
                   1474:                                                          $faq,$bug);
                   1475:         }
1.54      matthew  1476:         #
1.205     amueller 1477: 		
                   1478: 
1.223     droeschl 1479:         unless ($CourseBreadcrumbs) {
                   1480:             $links = htmltag('ol',  $links, { id => "LC_MenuBreadcrumbs"   });
                   1481:         } else {
1.227     bisitz   1482:             $links = htmltag('ul',  $links, { class => "LC_CourseBreadcrumbs" });
1.53      matthew  1483:         }
1.223     droeschl 1484: 
                   1485:         if ($component) {
                   1486:             $links = htmltag('span', 
                   1487:                              ( $no_mt ? $component : mt($component) ).
                   1488:                              ( $icons ? $icons : '' ),
                   1489:                              { class => 'LC_breadcrumbs_component' } )
                   1490:                              .$links;
                   1491:         }
                   1492:         
1.253.2.3  raeburn  1493:         render_tools(\$links);
1.223     droeschl 1494:         $links = htmltag('div', $links, 
1.225     bisitz   1495:                         { id => "LC_breadcrumbs" }) unless ($CourseBreadcrumbs) ;
1.253.2.3  raeburn  1496:         render_advtools(\$links);
1.223     droeschl 1497: 
1.53      matthew  1498:         # Return the @Crumbs stack to what we started with
                   1499:         push(@Crumbs,$last);
                   1500:         shift(@Crumbs);
1.223     droeschl 1501:         # Return the breadcrumb's line
                   1502:         return "$links";
1.53      matthew  1503:     }
                   1504: 
                   1505:     sub clear_breadcrumbs {
                   1506:         undef(@Crumbs);
1.242     droeschl 1507:         undef(%tools);
1.53      matthew  1508:     }
                   1509: 
                   1510:     sub add_breadcrumb {
1.232     raeburn  1511:         push(@Crumbs,@_);
1.53      matthew  1512:     }
1.242     droeschl 1513:     
1.253.2.3  raeburn  1514: =item add_breadcrumb_tool($category, $html)
                   1515: 
                   1516: Adds $html to $category of the breadcrumb toolbar container.
                   1517: 
                   1518: $html is usually a link to a page that invokes a function on the currently
                   1519: displayed data (e.g. print when viewing a problem)
                   1520: 
                   1521: Currently there are 3 possible values for $category:
                   1522: 
                   1523: =over
                   1524: 
                   1525: =item navigation
                   1526: left of breadcrumbs line
                   1527: 
                   1528: =item tools
                   1529: right of breadcrumbs line
                   1530: 
                   1531: =item advtools
                   1532: advanced tools shown in a separate box below breadcrumbs line
                   1533: 
                   1534: =back
                   1535: 
                   1536: returns: nothing
                   1537: 
                   1538: =cut
1.242     droeschl 1539: 
                   1540:     sub add_breadcrumb_tool {
1.253.2.3  raeburn  1541:         my ($category, @html) = @_;
                   1542:         return unless @html;
                   1543:         if (!defined(%tools)) {
                   1544:             %tools = ( navigation => [], tools => [], advtools => []);
                   1545:         }
                   1546: 
                   1547:         #this cleans data received from lonmenu::innerregister
                   1548:         @html = grep {defined $_ && $_ ne ''} @html;
                   1549:         for (@html) {
                   1550:             s/align="(right|left)"//;
                   1551:             s/<span.*?\/span>// if $category ne 'advtools';
1.242     droeschl 1552:         }
1.253.2.3  raeburn  1553: 
                   1554:         push @{$tools{$category}}, @html;
1.242     droeschl 1555:     }
                   1556: 
1.253.2.3  raeburn  1557: =item clear_breadcrumb_tools()
                   1558: 
                   1559: Clears the breadcrumb toolbar container.
                   1560: 
                   1561: returns: nothing
                   1562: 
                   1563: =cut
                   1564: 
1.245     droeschl 1565:     sub clear_breadcrumb_tools {
                   1566:         undef(%tools);
                   1567:     }
                   1568: 
1.253.2.3  raeburn  1569: =item render_tools(\$breadcrumbs)
                   1570: 
                   1571: Creates html for breadcrumb tools (categories navigation and tools) and inserts
                   1572: \$breadcrumbs at the correct position.
                   1573: 
                   1574: input: \$breadcrumbs - a reference to the string containing prepared
                   1575: breadcrumbs.
                   1576: 
                   1577: returns: nothing
                   1578: =cut
                   1579: 
                   1580: #TODO might split this in separate functions for each category
                   1581:     sub render_tools {
                   1582:         my ($breadcrumbs) = @_;
1.242     droeschl 1583:         return unless defined %tools;
1.253.2.3  raeburn  1584: 
                   1585:         my $navigation = list_from_array($tools{navigation},
                   1586:                    { listattr => { class=>"LC_breadcrumb_tools_navigation" } });
                   1587:         my $tools = list_from_array($tools{tools},
                   1588:                    { listattr => { class=>"LC_breadcrumb_tools_tools" } });
                   1589:         $$breadcrumbs = list_from_array([$navigation, $tools, $$breadcrumbs],
                   1590:                    { listattr => { class=>'LC_breadcrumb_tools_outerlist' } });
                   1591:     }
                   1592: 
1.253.2.4  raeburn  1593: =item render_advtools(\$breadcrumbs,$legend)
1.253.2.3  raeburn  1594: 
                   1595: Creates html for advanced tools (category advtools) and inserts \$breadcrumbs
                   1596: at the correct position.
                   1597: 
                   1598: input: \$breadcrumbs - a reference to the string containing prepared
                   1599: breadcrumbs (after render_tools call).
                   1600: 
                   1601: returns: nothing
                   1602: =cut
                   1603: 
                   1604:     sub render_advtools {
1.253.2.4  raeburn  1605:         my ($breadcrumbs,$legend) = @_;
1.253.2.3  raeburn  1606:         return unless     (defined $tools{'advtools'})
                   1607:                       and (scalar(@{$tools{'advtools'}}) > 0);
1.253.2.4  raeburn  1608:         my $args;
                   1609:         if ($legend) {
                   1610:             $args = {legend => $legend};
                   1611:         }
1.253.2.3  raeburn  1612:         $$breadcrumbs .= Apache::loncommon::head_subbox(
1.253.2.4  raeburn  1613:                             funclist_from_array($tools{'advtools'},$args));
1.242     droeschl 1614:     }
1.53      matthew  1615: 
1.57      matthew  1616: } # End of scope for @Crumbs
1.53      matthew  1617: 
                   1618: ############################################################
                   1619: ############################################################
                   1620: 
1.112     raeburn  1621: # Nested table routines.
                   1622: #
                   1623: # Routines to display form items in a multi-row table with 2 columns.
                   1624: # Uses nested tables to divide form elements into segments.
                   1625: # For examples of use see loncom/interface/lonnotify.pm 
                   1626: #
                   1627: # Can be used in following order: ...
                   1628: # &start_pick_box()
                   1629: # row1
                   1630: # row2
                   1631: # row3   ... etc.
1.173     raeburn  1632: # &submit_row()
1.161     raeburn  1633: # &end_pick_box()
1.112     raeburn  1634: #
                   1635: # where row1, row 2 etc. are chosen from &role_select_row,&course_select_row,
                   1636: # &status_select_row and &email_default_row
                   1637: #
                   1638: # Can also be used in following order:
                   1639: #
                   1640: # &start_pick_box()
                   1641: # &row_title()
                   1642: # &row_closure()
                   1643: # &row_title()
                   1644: # &row_closure()  ... etc.
                   1645: # &submit_row()
                   1646: # &end_pick_box()
                   1647: #
                   1648: # In general a &submit_row() call should proceed the call to &end_pick_box(),
                   1649: # as this routine adds a button for form submission.
1.113     raeburn  1650: # &submit_row() does not require a &row_closure after it.
1.112     raeburn  1651: #  
                   1652: # &start_pick_box() creates a bounding table with 1-pixel wide black border.
                   1653: # rows should be placed between calls to &start_pick_box() and &end_pick_box.
                   1654: #
                   1655: # &row_title() adds a title in the left column for each segment.
                   1656: # &row_closure() closes a row with a 1-pixel wide black line.
                   1657: #
                   1658: # &role_select_row() provides a select box from which to choose 1 or more roles 
                   1659: # &course_select_row provides ways of picking groups of courses
                   1660: #    radio buttons: all, by category or by picking from a course picker pop-up
                   1661: #      note: by category option is only displayed if a domain has implemented 
                   1662: #                selection by year, semester, department, number etc.
                   1663: #
                   1664: # &status_select_row() provides a select box from which to choose 1 or more
                   1665: #  access types (current access, prior access, and future access)  
                   1666: #
                   1667: # &email_default_row() provides text boxes for default e-mail suffixes for
                   1668: #  different authentication types in a domain.
                   1669: #
                   1670: # &row_title() and &row_closure() are called internally by the &*_select_row
                   1671: # routines, but can also be called directly to start and end rows which have 
                   1672: # needs that are not accommodated by the *_select_row() routines.    
                   1673: 
1.193     bisitz   1674: { # Start: row_count block for pick_box
                   1675: my @row_count;
                   1676: 
1.112     raeburn  1677: sub start_pick_box {
1.142     albertel 1678:     my ($css_class) = @_;
                   1679:     if (defined($css_class)) {
                   1680: 	$css_class = 'class="'.$css_class.'"';
                   1681:     } else {
                   1682: 	$css_class= 'class="LC_pick_box"';
                   1683:     }
1.193     bisitz   1684:     unshift(@row_count,0);
1.112     raeburn  1685:     my $output = <<"END";
1.142     albertel 1686:  <table $css_class>
1.112     raeburn  1687: END
                   1688:     return $output;
                   1689: }
                   1690: 
                   1691: sub end_pick_box {
1.193     bisitz   1692:     shift(@row_count);
1.112     raeburn  1693:     my $output = <<"END";
                   1694:        </table>
                   1695: END
                   1696:     return $output;
                   1697: }
                   1698: 
1.181     bisitz   1699: sub row_headline {
                   1700:     my $output = <<"END";
                   1701:            <tr><td colspan="2">
                   1702: END
                   1703:     return $output;
                   1704: }
                   1705: 
1.112     raeburn  1706: sub row_title {
1.243     amueller 1707:     my ($title,$css_title_class,$css_value_class, $css_value_furtherAttributes) = @_;
1.193     bisitz   1708:     $row_count[0]++;
                   1709:     my $css_class = ($row_count[0] % 2)?'LC_odd_row':'LC_even_row';
1.142     albertel 1710:     $css_title_class ||= 'LC_pick_box_title';
                   1711:     $css_title_class = 'class="'.$css_title_class.'"';
                   1712: 
                   1713:     $css_value_class ||= 'LC_pick_box_value';
                   1714: 
1.173     raeburn  1715:     if ($title ne '') {
                   1716:         $title .= ':';
                   1717:     }
1.112     raeburn  1718:     my $output = <<"ENDONE";
1.243     amueller 1719:            <tr class="LC_pick_box_row" $css_value_furtherAttributes> 
1.142     albertel 1720:             <td $css_title_class>
1.173     raeburn  1721: 	       $title
1.112     raeburn  1722:             </td>
1.193     bisitz   1723:             <td class="$css_value_class $css_class">
1.112     raeburn  1724: ENDONE
                   1725:     return $output;
                   1726: }
                   1727: 
                   1728: sub row_closure {
1.143     albertel 1729:     my ($no_separator) =@_;
1.113     raeburn  1730:     my $output = <<"ENDTWO";
1.112     raeburn  1731:             </td>
                   1732:            </tr>
1.143     albertel 1733: ENDTWO
                   1734:     if (!$no_separator) {
                   1735:         $output .= <<"ENDTWO";
1.112     raeburn  1736:            <tr>
1.143     albertel 1737:             <td colspan="2" class="LC_pick_box_separator">
1.112     raeburn  1738:             </td>
                   1739:            </tr>
                   1740: ENDTWO
1.143     albertel 1741:     }
1.112     raeburn  1742:     return $output;
                   1743: }
                   1744: 
1.193     bisitz   1745: } # End: row_count block for pick_box
                   1746: 
1.112     raeburn  1747: sub role_select_row {
1.147     raeburn  1748:     my ($roles,$title,$css_class,$show_separate_custom,$cdom,$cnum) = @_;
1.236     raeburn  1749:     my $crstype = 'Course';
                   1750:     if ($cdom ne '' && $cnum ne '') {
                   1751:         $crstype = &Apache::loncommon::course_type($cdom.'_'.$cnum);
                   1752:     }
1.116     raeburn  1753:     my $output;
                   1754:     if (defined($title)) {
1.142     albertel 1755:         $output = &row_title($title,$css_class);
1.116     raeburn  1756:     }
1.142     albertel 1757:     $output .= qq|
1.198     bisitz   1758:                                   <select name="roles" multiple="multiple">\n|;
1.113     raeburn  1759:     foreach my $role (@$roles) {
1.114     raeburn  1760:         my $plrole;
                   1761:         if ($role eq 'ow') {
                   1762:             $plrole = &mt('Course Owner');
1.147     raeburn  1763:         } elsif ($role eq 'cr') {
                   1764:             if ($show_separate_custom) {
                   1765:                 if ($cdom ne '' && $cnum ne '') {
                   1766:                     my %course_customroles = &course_custom_roles($cdom,$cnum);
                   1767:                     foreach my $crrole (sort(keys(%course_customroles))) {
                   1768:                         my ($plcrrole) = ($crrole =~ m|^cr/[^/]+/[^/]+/(.+)$|);
                   1769:                         $output .= '  <option value="'.$crrole.'">'.$plcrrole.
                   1770:                                    '</option>';
                   1771:                     }
                   1772:                 }
                   1773:             } else {
                   1774:                 $plrole = &mt('Custom Role');
                   1775:             }
1.114     raeburn  1776:         } else {
1.236     raeburn  1777:             $plrole=&Apache::lonnet::plaintext($role,$crstype);
1.114     raeburn  1778:         }
1.147     raeburn  1779:         if (($role ne 'cr') || (!$show_separate_custom)) {
                   1780:             $output .= '  <option value="'.$role.'">'.$plrole.'</option>';
                   1781:         }
1.112     raeburn  1782:     }
1.142     albertel 1783:     $output .= qq|                </select>\n|;
1.116     raeburn  1784:     if (defined($title)) {
                   1785:         $output .= &row_closure();
                   1786:     }
1.112     raeburn  1787:     return $output;
                   1788: }
                   1789: 
                   1790: sub course_select_row {
1.142     albertel 1791:     my ($title,$formname,$totcodes,$codetitles,$idlist,$idlist_titles,
1.237     raeburn  1792: 	$css_class,$crstype) = @_;
1.142     albertel 1793:     my $output = &row_title($title,$css_class);
1.237     raeburn  1794:     $output .= &course_selection($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype);
1.169     raeburn  1795:     $output .= &row_closure();
                   1796:     return $output;
                   1797: }
                   1798: 
                   1799: sub course_selection {
1.237     raeburn  1800:     my ($formname,$totcodes,$codetitles,$idlist,$idlist_titles,$crstype) = @_;
1.169     raeburn  1801:     my $output = qq|
1.142     albertel 1802: <script type="text/javascript">
1.218     bisitz   1803: // <![CDATA[
1.112     raeburn  1804:     function coursePick (formname) {
                   1805:         for  (var i=0; i<formname.coursepick.length; i++) {
1.114     raeburn  1806:             if (formname.coursepick[i].value == 'category') {
                   1807:                 courseSet('');
                   1808:             }
1.112     raeburn  1809:             if (!formname.coursepick[i].checked) {
                   1810:                 if (formname.coursepick[i].value == 'specific') {
                   1811:                     formname.coursetotal.value = 0;
                   1812:                     formname.courselist = '';
                   1813:                 }
                   1814:             }
                   1815:         }
                   1816:     }
1.114     raeburn  1817:     function setPick (formname) {
                   1818:         for  (var i=0; i<formname.coursepick.length; i++) {
                   1819:             if (formname.coursepick[i].value == 'category') {
                   1820:                 formname.coursepick[i].checked = true;
                   1821:             }
                   1822:             formname.coursetotal.value = 0;
                   1823:             formname.courselist = '';
                   1824:         }
                   1825:     }
1.218     bisitz   1826: // ]]>
1.112     raeburn  1827: </script>
                   1828:     |;
1.237     raeburn  1829: 
                   1830:     my ($allcrs,$pickspec);
                   1831:     if ($crstype eq 'Community') {
                   1832:         $allcrs = &mt('All communities');
                   1833:         $pickspec = &mt('Pick specific communities:');
                   1834:     } else {
                   1835:         $allcrs = &mt('All courses');
                   1836:         $pickspec = &mt('Pick specific course(s):');
                   1837:     }
                   1838: 
1.112     raeburn  1839:     my $courseform='<b>'.&Apache::loncommon::selectcourse_link
1.237     raeburn  1840:                      ($formname,'pickcourse','pickdomain','coursedesc','',1,$crstype).'</b>';
                   1841:         $output .= '<input type="radio" name="coursepick" value="all" onclick="coursePick(this.form)" />'.$allcrs.'<br />';
1.112     raeburn  1842:     if ($totcodes > 0) {
                   1843:         my $numtitles = @$codetitles;
                   1844:         if ($numtitles > 0) {
1.129     raeburn  1845:             $output .= '<input type="radio" name="coursepick" value="category" onclick="coursePick(this.form);alert('."'".&mt('Choose categories, from left to right')."'".')" />'.&mt('Pick courses by category:').' <br />';
1.112     raeburn  1846:             $output .= '<table><tr><td>'.$$codetitles[0].'<br />'."\n".
                   1847:                '<select name="'.$$codetitles[0].
1.114     raeburn  1848:                '" onChange="setPick(this.form);courseSet('."'$$codetitles[0]'".')">'."\n".
1.112     raeburn  1849:                ' <option value="-1" />Select'."\n";
                   1850:             my @items = ();
                   1851:             my @longitems = ();
                   1852:             if ($$idlist{$$codetitles[0]} =~ /","/) {
1.113     raeburn  1853:                 @items = split(/","/,$$idlist{$$codetitles[0]});
1.112     raeburn  1854:             } else {
                   1855:                 $items[0] = $$idlist{$$codetitles[0]};
                   1856:             }
                   1857:             if (defined($$idlist_titles{$$codetitles[0]})) {
                   1858:                 if ($$idlist_titles{$$codetitles[0]} =~ /","/) {
1.113     raeburn  1859:                     @longitems = split(/","/,$$idlist_titles{$$codetitles[0]});
1.112     raeburn  1860:                 } else {
                   1861:                     $longitems[0] = $$idlist_titles{$$codetitles[0]};
                   1862:                 }
                   1863:                 for (my $i=0; $i<@longitems; $i++) {
                   1864:                     if ($longitems[$i] eq '') {
                   1865:                         $longitems[$i] = $items[$i];
                   1866:                     }
                   1867:                 }
                   1868:             } else {
                   1869:                 @longitems = @items;
                   1870:             }
                   1871:             for (my $i=0; $i<@items; $i++) {
                   1872:                 $output .= ' <option value="'.$items[$i].'">'.$longitems[$i].'</option>';
                   1873:             }
                   1874:             $output .= '</select></td>';
                   1875:             for (my $i=1; $i<$numtitles; $i++) {
                   1876:                 $output .= '<td>'.$$codetitles[$i].'<br />'."\n".
                   1877:                           '<select name="'.$$codetitles[$i].
                   1878:                           '" onChange="courseSet('."'$$codetitles[$i]'".')">'."\n".
                   1879:                           '<option value="-1">&lt;-Pick '.$$codetitles[$i-1].'</option>'."\n".
                   1880:                           '</select>'."\n".
                   1881:                           '</td>';
                   1882:             }
                   1883:             $output .= '</tr></table><br />';
                   1884:         }
                   1885:     }
1.238     raeburn  1886:     $output .= '<input type="radio" name="coursepick" value="specific" onclick="coursePick(this.form);opencrsbrowser('."'".$formname."','dccourse','dcdomain','coursedesc','','1','$crstype'".')" />'.$pickspec.' '.$courseform.'&nbsp;&nbsp;<input type="text" value="0" size="4" name="coursetotal" /><input type="hidden" name="courselist" value="" />selected.<br />'."\n";
1.112     raeburn  1887:     return $output;
                   1888: }
                   1889: 
                   1890: sub status_select_row {
1.142     albertel 1891:     my ($types,$title,$css_class) = @_;
1.117     raeburn  1892:     my $output; 
                   1893:     if (defined($title)) {
1.142     albertel 1894:         $output = &row_title($title,$css_class,'LC_pick_box_select');
1.117     raeburn  1895:     }
1.142     albertel 1896:     $output .= qq|
1.198     bisitz   1897:                                     <select name="types" multiple="multiple">\n|;
1.113     raeburn  1898:     foreach my $status_type (sort(keys(%{$types}))) {
1.112     raeburn  1899:         $output .= '  <option value="'.$status_type.'">'.$$types{$status_type}.'</option>';
                   1900:     }
1.142     albertel 1901:     $output .= qq|                   </select>\n|; 
1.117     raeburn  1902:     if (defined($title)) {
                   1903:         $output .= &row_closure();
                   1904:     }
1.112     raeburn  1905:     return $output;
                   1906: }
                   1907: 
                   1908: sub email_default_row {
1.142     albertel 1909:     my ($authtypes,$title,$descrip,$css_class) = @_;
                   1910:     my $output = &row_title($title,$css_class);
                   1911:     $output .= $descrip.
                   1912: 	&Apache::loncommon::start_data_table().
                   1913: 	&Apache::loncommon::start_data_table_header_row().
                   1914: 	'<th>'.&mt('Authentication Method').'</th>'.
                   1915: 	'<th align="right">'.&mt('Username -> e-mail conversion').'</th>'."\n".
                   1916: 	&Apache::loncommon::end_data_table_header_row();
1.112     raeburn  1917:     my $rownum = 0;
1.113     raeburn  1918:     foreach my $auth (sort(keys(%{$authtypes}))) {
1.112     raeburn  1919:         my ($userentry,$size);
                   1920:         if ($auth =~ /^krb/) {
                   1921:             $userentry = '';
                   1922:             $size = 25;
                   1923:         } else {
                   1924:             $userentry = 'username@';
                   1925:             $size = 15;
                   1926:         }
1.142     albertel 1927:         $output .= &Apache::loncommon::start_data_table_row().
                   1928: 	    '<td>  '.$$authtypes{$auth}.'</td>'.
                   1929: 	    '<td align="right">'.$userentry.
                   1930: 	    '<input type="text" name="'.$auth.'" size="'.$size.'" /></td>'.
                   1931: 	    &Apache::loncommon::end_data_table_row();
1.112     raeburn  1932:     }
1.142     albertel 1933:     $output .= &Apache::loncommon::end_data_table();
1.112     raeburn  1934:     $output .= &row_closure();
                   1935:     return $output;
                   1936: }
                   1937: 
                   1938: 
                   1939: sub submit_row {
1.142     albertel 1940:     my ($title,$cmd,$submit_text,$css_class) = @_;
                   1941:     my $output = &row_title($title,$css_class,'LC_pick_box_submit');
1.112     raeburn  1942:     $output .= qq|
                   1943:              <br />
                   1944:              <input type="hidden" name="command" value="$cmd" />
                   1945:              <input type="submit" value="$submit_text"/> &nbsp;
                   1946:              <br /><br />
1.142     albertel 1947:             \n|;
1.112     raeburn  1948:     return $output;
                   1949: }
1.1       stredwic 1950: 
1.147     raeburn  1951: sub course_custom_roles {
                   1952:     my ($cdom,$cnum) = @_;
                   1953:     my %returnhash=();
                   1954:     my %coursepersonnel=&Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
                   1955:     foreach my $person (sort(keys(%coursepersonnel))) {
                   1956:         my ($role) = ($person =~ /^([^:]+):/);
                   1957:         my ($end,$start) = split(/:/,$coursepersonnel{$person});
                   1958:         if ($end == -1 && $start == -1) {
                   1959:             next;
                   1960:         }
                   1961:         if ($role =~ m|^cr/[^/]+/[^/]+/[^/]|) {
                   1962:             $returnhash{$role} ++;
                   1963:         }
                   1964:     }
                   1965:     return %returnhash;
                   1966: }
                   1967: 
                   1968: 
1.119     raeburn  1969: ##############################################
                   1970: ##############################################
1.179     raeburn  1971: 
                   1972: # topic_bar
                   1973: #
1.248     wenzelju 1974: # Generates a div containing an (optional) number with a white background followed by a 
1.240     raeburn  1975: # title with a background color defined in the corresponding CSS: LC_topic_bar
                   1976: # Inputs:
1.248     wenzelju 1977: # 1. number to display.
                   1978: #    If input for number is empty only the title will be displayed. 
1.240     raeburn  1979: # 2. title text to display.
                   1980: # Outputs - a scalar containing html mark-up for the div.
                   1981: 
1.179     raeburn  1982: sub topic_bar {
1.248     wenzelju 1983:     my ($num,$title) = @_;
                   1984:     my $number = '';
                   1985:     if ($num ne '') {
                   1986:         $number = '<span>'.$num.'</span>';
1.239     amueller 1987:     }
1.248     wenzelju 1988:     return '<div class="LC_topic_bar">'.$number.$title.'</div>';
1.179     raeburn  1989: }
                   1990: 
                   1991: ##############################################
                   1992: ##############################################
1.119     raeburn  1993: # echo_form_input
                   1994: #
                   1995: # Generates html markup to add form elements from the referrer page
                   1996: # as hidden form elements (values encoded) in the new page.
                   1997: #
                   1998: # Intended to support two types of use 
                   1999: # (a) to allow backing up to earlier pages in a multi-page 
                   2000: # form submission process using a breadcrumb trail.
                   2001: #
                   2002: # (b) to allow the current page to be reloaded with form elements
                   2003: # set on previous page to remain unchanged.  An example would
                   2004: # be where the a page containing a dynamically-built table of data is 
                   2005: # is to be redisplayed, with only the sort order of the data changed. 
                   2006: #  
                   2007: # Inputs:
                   2008: # 1. Reference to array of form elements in the submitted form on 
                   2009: # the referrer page which are to be excluded from the echoed elements.
                   2010: #
                   2011: # 2. Reference to array of regular expressions, which if matched in the  
                   2012: # name of the form element n the referrer page will be omitted from echo. 
                   2013: #
                   2014: # Outputs: A scalar containing the html markup for the echoed form
                   2015: # elements (all as hidden elements, with values encoded). 
                   2016: 
                   2017: 
                   2018: sub echo_form_input {
                   2019:     my ($excluded,$regexps) = @_;
                   2020:     my $output = '';
                   2021:     foreach my $key (keys(%env)) {
                   2022:         if ($key =~ /^form\.(.+)$/) {
                   2023:             my $name = $1;
                   2024:             my $match = 0;
                   2025:             if ((!@{$excluded}) || (!grep/^$name$/,@{$excluded})) {
                   2026:                 if (defined($regexps)) {
                   2027:                     if (@{$regexps} > 0) {
                   2028:                         foreach my $regexp (@{$regexps}) {
                   2029:                             if ($name =~ /\Q$regexp\E/) {
                   2030:                                 $match = 1;
                   2031:                                 last;
                   2032:                             }
                   2033:                         }
                   2034:                     }
                   2035:                 }
                   2036:                 if (!$match) {
                   2037:                     if (ref($env{$key})) {
                   2038:                         foreach my $value (@{$env{$key}}) {
                   2039:                             $value = &HTML::Entities::encode($value,'<>&"');
                   2040:                             $output .= '<input type="hidden" name="'.$name.
                   2041:                                              '" value="'.$value.'" />'."\n";
                   2042:                         }
                   2043:                     } else {
                   2044:                         my $value = &HTML::Entities::encode($env{$key},'<>&"');
                   2045:                         $output .= '<input type="hidden" name="'.$name.
                   2046:                                              '" value="'.$value.'" />'."\n";
                   2047:                     }
                   2048:                 }
                   2049:             }
                   2050:         }
                   2051:     }
                   2052:     return $output;
                   2053: }
                   2054: 
                   2055: ##############################################
                   2056: ##############################################
                   2057: # set_form_elements
                   2058: #
                   2059: # Generates javascript to set form elements to values based on
                   2060: # corresponding values for the same form elements when the page was
                   2061: # previously submitted.
                   2062: #     
                   2063: # Last submission values are read from hidden form elements in referring 
                   2064: # page which have the same name, i.e., generated by &echo_form_input(). 
                   2065: #
                   2066: # Intended to be called by onload event.
                   2067: #
1.121     raeburn  2068: # Inputs:
                   2069: # (a) Reference to hash of echoed form elements to be set.
1.119     raeburn  2070: #
                   2071: # In the hash, keys are the form element names, and the values are the
                   2072: # element type (selectbox, radio, checkbox or text -for textbox, textarea or
                   2073: # hidden).
1.121     raeburn  2074: #
                   2075: # (b) Optional reference to hash of stored elements to be set.
                   2076: #
                   2077: # If the page being displayed is a page which permits modification of
                   2078: # previously stored data, e.g., the first page in a multi-page submission,
                   2079: # then if stored is supplied, form elements will be set to the last stored
                   2080: # values.  If user supplied values are also available for the same elements
                   2081: # these will replace the stored values. 
                   2082: #        
1.119     raeburn  2083: # Output:
                   2084: #  
                   2085: # javascript function - set_form_elements() which sets form elements,
                   2086: # expects an argument: formname - the name of the form according to 
                   2087: # the DOM, e.g., document.compose
                   2088: 
                   2089: sub set_form_elements {
1.121     raeburn  2090:     my ($elements,$stored) = @_;
                   2091:     my %values;
1.119     raeburn  2092:     my $output .= 'function setFormElements(courseForm) {
1.121     raeburn  2093: ';
                   2094:     if (defined($stored)) {
                   2095:         foreach my $name (keys(%{$stored})) {
                   2096:             if (exists($$elements{$name})) {
                   2097:                 if (ref($$stored{$name}) eq 'ARRAY') {
                   2098:                     $values{$name} = $$stored{$name};
                   2099:                 } else {
                   2100:                     @{$values{$name}} = ($$stored{$name});
                   2101:                 }
                   2102:             }
                   2103:         }
                   2104:     }
                   2105: 
1.119     raeburn  2106:     foreach my $key (keys(%env)) {
                   2107:         if ($key =~ /^form\.(.+)$/) {
                   2108:             my $name = $1;
                   2109:             if (exists($$elements{$name})) {
1.121     raeburn  2110:                 @{$values{$name}} = &Apache::loncommon::get_env_multiple($key);
                   2111:             }
                   2112:         }
                   2113:     }
                   2114: 
                   2115:     foreach my $name (keys(%values)) {
                   2116:         for (my $i=0; $i<@{$values{$name}}; $i++) {
                   2117:             $values{$name}[$i] = &HTML::Entities::decode($values{$name}[$i],'<>&"');
                   2118:             $values{$name}[$i] =~ s/([\r\n\f]+)/\\n/g;
                   2119:             $values{$name}[$i] =~ s/"/\\"/g;
                   2120:         }
1.234     raeburn  2121:         if (($$elements{$name} eq 'text') || ($$elements{$name} eq 'hidden')) {
1.121     raeburn  2122:             my $numvalues = @{$values{$name}};
                   2123:             if ($numvalues > 1) {
                   2124:                 my $valuestring = join('","',@{$values{$name}});
                   2125:                 $output .= qq|
1.119     raeburn  2126:   var textvalues = new Array ("$valuestring");
1.147     raeburn  2127:   var total = courseForm.elements['$name'].length;
1.119     raeburn  2128:   if (total > $numvalues) {
                   2129:       total = $numvalues;
                   2130:   }    
                   2131:   for (var i=0; i<total; i++) {
1.147     raeburn  2132:       courseForm.elements['$name']\[i].value = textvalues[i];
1.119     raeburn  2133:   }
                   2134: |;
1.121     raeburn  2135:             } else {
                   2136:                 $output .= qq|
1.147     raeburn  2137:   courseForm.elements['$name'].value = "$values{$name}[0]";
1.119     raeburn  2138: |;
1.121     raeburn  2139:             }
                   2140:         } else {
                   2141:             $output .=  qq|
1.147     raeburn  2142:   var elementLength = courseForm.elements['$name'].length;
1.119     raeburn  2143:   if (elementLength==undefined) {
                   2144: |;
1.121     raeburn  2145:             foreach my $value (@{$values{$name}}) {
                   2146:                 if ($$elements{$name} eq 'selectbox') {
                   2147:                     $output .=  qq|
1.147     raeburn  2148:       if (courseForm.elements['$name'].options[0].value == "$value") {
                   2149:           courseForm.elements['$name'].options[0].selected = true;
1.119     raeburn  2150:       }|;
1.121     raeburn  2151:                 } elsif (($$elements{$name} eq 'radio') ||
                   2152:                          ($$elements{$name} eq 'checkbox')) {
                   2153:                     $output .= qq|
1.147     raeburn  2154:       if (courseForm.elements['$name'].value == "$value") {
1.148     albertel 2155:           courseForm.elements['$name'].checked = true;
1.234     raeburn  2156:       } else {
                   2157:           courseForm.elements['$name'].checked = false;
1.119     raeburn  2158:       }|;
1.121     raeburn  2159:                 }
                   2160:             }
                   2161:             $output .= qq|
1.119     raeburn  2162:   }
                   2163:   else {
1.147     raeburn  2164:       for (var i=0; i<courseForm.elements['$name'].length; i++) {
1.119     raeburn  2165: |;
1.121     raeburn  2166:             if ($$elements{$name} eq 'selectbox') {
                   2167:                 $output .=  qq|
1.147     raeburn  2168:           courseForm.elements['$name'].options[i].selected = false;|;
1.121     raeburn  2169:             } elsif (($$elements{$name} eq 'radio') || 
                   2170:                      ($$elements{$name} eq 'checkbox')) {
                   2171:                 $output .= qq|
1.147     raeburn  2172:           courseForm.elements['$name']\[i].checked = false;|; 
1.121     raeburn  2173:             }
                   2174:             $output .= qq|
1.119     raeburn  2175:       }
1.147     raeburn  2176:       for (var j=0; j<courseForm.elements['$name'].length; j++) {
1.119     raeburn  2177: |;
1.121     raeburn  2178:             foreach my $value (@{$values{$name}}) {
                   2179:                 if ($$elements{$name} eq 'selectbox') {
                   2180:                     $output .=  qq|
1.147     raeburn  2181:           if (courseForm.elements['$name'].options[j].value == "$value") {
                   2182:               courseForm.elements['$name'].options[j].selected = true;
1.119     raeburn  2183:           }|;
1.121     raeburn  2184:                 } elsif (($$elements{$name} eq 'radio') ||
                   2185:                          ($$elements{$name} eq 'checkbox')) { 
                   2186:                       $output .= qq|
1.147     raeburn  2187:           if (courseForm.elements['$name']\[j].value == "$value") {
                   2188:               courseForm.elements['$name']\[j].checked = true;
1.119     raeburn  2189:           }|;
1.121     raeburn  2190:                 }
                   2191:             }
                   2192:             $output .= qq|
1.119     raeburn  2193:       }
                   2194:   }
                   2195: |;
                   2196:         }
                   2197:     }
                   2198:     $output .= "
1.235     raeburn  2199:     return;
1.119     raeburn  2200: }\n";
                   2201:     return $output;
                   2202: }
                   2203: 
1.158     raeburn  2204: ##############################################
                   2205: ##############################################
                   2206: 
                   2207: # javascript_valid_email
                   2208: #
                   2209: # Generates javascript to validate an e-mail address.
                   2210: # Returns a javascript function which accetps a form field as argumnent, and
                   2211: # returns false if field.value does not satisfy two regular expression matches
                   2212: # for a valid e-mail address.  Backwards compatible with old browsers without
                   2213: # support for javascript RegExp (just checks for @ in field.value in this case). 
                   2214: 
                   2215: sub javascript_valid_email {
                   2216:     my $scripttag .= <<'END';
                   2217: function validmail(field) {
                   2218:     var str = field.value;
                   2219:     if (window.RegExp) {
                   2220:         var reg1str = "(@.*@)|(\\.\\.)|(@\\.)|(\\.@)|(^\\.)";
                   2221:         var reg2str = "^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$"; //"
                   2222:         var reg1 = new RegExp(reg1str);
                   2223:         var reg2 = new RegExp(reg2str);
                   2224:         if (!reg1.test(str) && reg2.test(str)) {
                   2225:             return true;
                   2226:         }
                   2227:         return false;
                   2228:     }
                   2229:     else
                   2230:     {
                   2231:         if(str.indexOf("@") >= 0) {
                   2232:             return true;
                   2233:         }
                   2234:         return false;
                   2235:     }
                   2236: }
                   2237: END
                   2238:     return $scripttag;
                   2239: }
                   2240: 
1.219     droeschl 2241: 
                   2242: # USAGE: htmltag(element, content, {attribute => value,...});
                   2243: #
                   2244: # EXAMPLES: 
                   2245: #  - htmltag('a', 'this is an anchor', {href  => 'www.example.com', 
                   2246: #                                       title => 'this is a title'})
                   2247: #
                   2248: #  - You might want to set up needed tags like: 
                   2249: #
                   2250: #     my $h3  = sub { return htmltag( "h3",  @_ ) };
                   2251: #
                   2252: #    ... and use them: $h3->("This is a headline")
                   2253: #
                   2254: #  - To set up a couple of tags, see sub inittags
                   2255: #
                   2256: # NOTES:
                   2257: # - Empty elements, such as <br/> are correctly terminated, 
                   2258: #   i.e. htmltag('br') returns <br/> 
                   2259: # - Empty attributes (title="") are filtered out.
                   2260: # - The function will not check for deprecated attributes.
                   2261: #
                   2262: # OUTPUT: content enclosed in xhtml conform tags
                   2263: sub htmltag{
                   2264:     return
                   2265:         qq|<$_[0]|
                   2266:         . join( '', map { qq| $_="${$_[2]}{$_}"| if ${$_[2]}{$_} } keys %{ $_[2] } )
                   2267:         . ($_[1] ? qq|>$_[1]</$_[0]>| : qq|/>|). "\n";
                   2268: };
                   2269: 
                   2270: 
                   2271: # USAGE: inittags(@tags);
                   2272: #
                   2273: # EXAMPLES:
1.253.2.3  raeburn  2274: #  - my ($h1, $h2, $h3) = inittags( qw( h1 h2 h3 ) )
1.219     droeschl 2275: #    $h1->("This is a headline") #Returns: <h1>This is a headline</h1>
                   2276: #
                   2277: # NOTES: See sub htmltag for further information.
                   2278: #
                   2279: # OUTPUT: List of subroutines. 
                   2280: sub inittags {
                   2281:     my @tags = @_;
                   2282:     return map { my $tag = $_;
                   2283:                  sub { return htmltag( $tag, @_ ) }
                   2284:                } @tags;
                   2285: }
                   2286: 
                   2287: 
1.231     droeschl 2288: # USAGE: scripttag(scriptcode, [start|end|both]);
1.229     droeschl 2289: #
                   2290: # EXAMPLES: 
1.231     droeschl 2291: #  - scripttag("alert('Hello World!')", 'both') 
                   2292: #    returns:
                   2293: #    <script type="text/javascript">
                   2294: #    // BEGIN LON-CAPA Internal
                   2295: #    alert(Hello World!')
                   2296: #    // END LON-CAPA Internal
                   2297: #    </script>
1.229     droeschl 2298: #
                   2299: # NOTES:
                   2300: # - works currently only for javascripts
                   2301: #
1.231     droeschl 2302: # OUTPUT: 
                   2303: # Scriptcode properly enclosed in <script> and CDATA tags (and LC
                   2304: # Internal markers if 2nd argument is given)
1.229     droeschl 2305: sub scripttag {
1.231     droeschl 2306:     my ( $content, $marker ) = @_;
                   2307:     return unless defined $content;
                   2308: 
                   2309:     my $begin = "\n// BEGIN LON-CAPA Internal\n";
                   2310:     my $end   = "\n// END LON-CAPA Internal\n";
                   2311: 
                   2312:     if ($marker) {
                   2313:         $content  = $begin . $content if $marker eq 'start' or $marker eq 'both';
                   2314:         $content .= $end              if $marker eq 'end'   or $marker eq 'both';
                   2315:     }
                   2316: 
1.229     droeschl 2317:     $content = "\n// <![CDATA[\n$content\n// ]]>\n";
1.231     droeschl 2318: 
                   2319:     return htmltag('script', $content, {type => 'text/javascript'});
1.229     droeschl 2320: };
                   2321: 
                   2322: 
1.253.2.3  raeburn  2323: =item list_from_array( \@array, { listattr =>{}, itemattr =>{} } )
                   2324: 
                   2325: Constructs a XHTML list from \@array.
                   2326: 
                   2327: input:
                   2328: 
                   2329: =over
                   2330: 
                   2331: =item \@array
                   2332: 
                   2333: A reference to the array containing text that will be wrapped in <li></li> tags.
                   2334: 
                   2335: =item { listattr => {}, itemattr =>{} }
                   2336: 
                   2337: Attributes for <ul> and <li> passed in as hash references.
                   2338: See htmltag() for more details.
                   2339: 
                   2340: =back
                   2341: 
                   2342: returns: XHTML list as String.
                   2343: 
                   2344: =cut
                   2345: 
                   2346: # \@items, {listattr => { class => 'abc', id => 'xyx' }, itemattr => {class => 'abc', id => 'xyx'}}
                   2347: sub list_from_array {
                   2348:     my ($items, $args) = @_;
                   2349:     return unless scalar @$items;
                   2350:     my ($ul, $li) = inittags( qw(ul li) );
                   2351:     my $listitems = join '', map { $li->($_, $args->{itemattr}) } @$items;
                   2352:     return $ul->( $listitems, $args->{listattr} );
                   2353: }
                   2354: 
                   2355: 
1.183     droeschl 2356: ##############################################
                   2357: ##############################################
                   2358: 
                   2359: # generate_menu
                   2360: #
                   2361: # Generates html markup for a menu. 
                   2362: #
                   2363: # Inputs:
                   2364: # An array of following structure:
                   2365: #   ({	categorytitle => 'Categorytitle',
                   2366: #	items => [
1.201     droeschl 2367: #		    {	
                   2368: #           linktext    =>	'Text to be displayed',
                   2369: #			url	        =>	'URL the link is pointing to, i.e. /adm/site?action=dosomething',
1.183     droeschl 2370: #			permission  =>	'Contains permissions as returned from lonnet::allowed(),
1.201     droeschl 2371: #					         must evaluate to true in order to activate the link',
1.184     droeschl 2372: #			icon        =>  'icon filename',
1.186     droeschl 2373: #			alttext	    =>	'alt text for the icon',
1.183     droeschl 2374: #			help	    =>	'Name of the corresponding helpfile',
                   2375: #			linktitle   =>	'Description of the link (used for title tag)'
                   2376: #		    },
                   2377: #		    ...
                   2378: #		]
                   2379: #   }, 
                   2380: #   ...
                   2381: #   )
                   2382: #
                   2383: # Outputs: A scalar containing the html markup for the menu.
                   2384: 
                   2385: sub generate_menu {
                   2386:     my @menu = @_;
1.201     droeschl 2387:     # subs for specific html elements
1.219     droeschl 2388:     my ($h3, $div, $ul, $li, $a, $img) = inittags( qw(h3 div ul li a img) ); 
1.201     droeschl 2389:     
                   2390:     my @categories; # each element represents the entire markup for a category
                   2391:    
                   2392:     foreach my $category (@menu) {
                   2393:         my @links;  # contains the links for the current $category
                   2394:         foreach my $link (@{$$category{items}}) {
                   2395:             next unless $$link{permission};
                   2396:             
                   2397:             # create the markup for the current $link and push it into @links.
                   2398:             # each entry consists of an image and a text optionally followed 
                   2399:             # by a help link.
1.253.2.3  raeburn  2400:             my $src;
                   2401:             if ($$link{icon} ne '') {
                   2402:                 $src = '/res/adm/pages/'.$$link{icon};
                   2403:             }
1.232     raeburn  2404:             push(@links,$li->(
1.201     droeschl 2405:                         $a->(
                   2406:                             $img->("", {
                   2407:                                 class => "LC_noBorder LC_middle",
1.253.2.3  raeburn  2408:                                 src   => $src,
1.202     droeschl 2409:                                 alt   => mt(defined($$link{alttext}) ?
                   2410:                                 $$link{alttext} : $$link{linktext})
1.201     droeschl 2411:                             }), {
                   2412:                             href  => $$link{url},
1.202     droeschl 2413:                             title => mt($$link{linktitle})
1.201     droeschl 2414:                             }).
1.202     droeschl 2415:                         $a->(mt($$link{linktext}), {
1.201     droeschl 2416:                             href  => $$link{url},
1.202     droeschl 2417:                             title => mt($$link{linktitle}),
1.201     droeschl 2418:                             class => "LC_menubuttons_link"
                   2419:                             }).
                   2420:                          (defined($$link{help}) ? 
                   2421:                          Apache::loncommon::help_open_topic($$link{help}) : ''),
1.232     raeburn  2422:                          {class => "LC_menubuttons_inline_text"}));
1.201     droeschl 2423:         }
                   2424: 
                   2425:         # wrap categorytitle in <h3>, concatenate with 
                   2426:         # joined and in <ul> tags wrapped @links
                   2427:         # and wrap everything in an enclosing <div> and push it into
                   2428:         # @categories
                   2429:         # such that each element looks like:
                   2430:         # <div><h3>title</h3><ul><li>...</li>...</ul></div>
                   2431:         # the category won't be added if there aren't any links
1.232     raeburn  2432:         push(@categories, 
1.202     droeschl 2433:             $div->($h3->(mt($$category{categorytitle}), {class=>"LC_hcell"}).
1.201     droeschl 2434:             $ul->(join('' ,@links),  {class =>"LC_ListStyleNormal" }),
1.232     raeburn  2435:             {class=>"LC_Box LC_400Box"})) if scalar(@links);
1.183     droeschl 2436:     }
1.201     droeschl 2437: 
                   2438:     # wrap the joined @categories in another <div> (column layout)
                   2439:     return $div->(join('', @categories), {class => "LC_columnSection"});
1.183     droeschl 2440: }
1.176     foxr     2441: 
1.224     bisitz   2442: ##############################################
                   2443: ##############################################
                   2444: 
                   2445: =pod
                   2446: 
                   2447: =item &start_funclist
                   2448: 
                   2449: Start list of available functions
                   2450: 
                   2451: Typically used to offer a simple list of available functions
                   2452: at top or bottom of page.
                   2453: All available functions/actions for the current page
                   2454: should be included in this list.
                   2455: 
                   2456: If the optional headline text is not provided, a default text will be used.
                   2457: 
                   2458: 
                   2459: Related routines:
                   2460: =over 4
                   2461: add_item_funclist
                   2462: end_funclist
                   2463: =back
                   2464: 
                   2465: 
                   2466: Inputs: (optional) headline text
                   2467: 
                   2468: Returns: HTML code with function list start
                   2469: 
                   2470: =cut
                   2471: 
                   2472: ##############################################
                   2473: ##############################################
                   2474: 
                   2475: sub start_funclist {
                   2476:     my($legendtext)=@_;
                   2477:     $legendtext=&mt('Functions') if !$legendtext;
1.244     droeschl 2478:     return '<ul class="LC_funclist"><li style="font-weight:bold; margin-left:0.8em;">'.$legendtext.'</li>'."\n";
1.224     bisitz   2479: }
                   2480: 
                   2481: 
                   2482: ##############################################
                   2483: ##############################################
                   2484: 
                   2485: =pod
                   2486: 
                   2487: =item &add_item_funclist
                   2488: 
                   2489: Adds an item to the list of available functions
                   2490: 
                   2491: Related routines:
                   2492: =over 4
                   2493: start_funclist
                   2494: end_funclist
                   2495: =back
                   2496: 
                   2497: Inputs: content item with text and link to function
                   2498: 
                   2499: Returns: HTML code with list item for funclist
                   2500: 
                   2501: =cut
                   2502: 
                   2503: ##############################################
                   2504: ##############################################
                   2505: 
                   2506: sub add_item_funclist {
                   2507:     my($content) = @_;
                   2508:     return '<li>'.$content.'</li>'."\n";
                   2509: }
                   2510: 
                   2511: =pod
                   2512: 
                   2513: =item &end_funclist
                   2514: 
                   2515: End list of available functions
                   2516: 
                   2517: Related routines:
                   2518: =over 4
                   2519: start_funclist
                   2520: add_item_funclist
                   2521: =back
                   2522: 
                   2523: Inputs: ./.
                   2524: 
                   2525: Returns: HTML code with function list end
                   2526: =cut
                   2527: 
                   2528: sub end_funclist {
1.246     bisitz   2529:     return "</ul>\n";
1.224     bisitz   2530: }
                   2531: 
1.253.2.3  raeburn  2532: =pod
                   2533: 
                   2534: =item funclist_from_array( \@array, {legend => 'text for legend'} )
                   2535: 
                   2536: Constructs a XHTML list from \@array with the first item being visually
                   2537: highlighted and set to the value of legend or 'Functions' if legend is
                   2538: empty.
                   2539: 
                   2540: =over
                   2541: 
                   2542: =item \@array
                   2543: 
                   2544: A reference to the array containing text that will be wrapped in <li></li> tags.
                   2545: 
                   2546: =item { legend => 'text' }
                   2547: 
                   2548: A string that's used as visually highlighted first item. 'Functions' is used if
                   2549: it's value evaluates to false.
                   2550: 
                   2551: =back
                   2552: 
                   2553: returns: XHTML list as string.
                   2554: 
                   2555: =back
                   2556: 
                   2557: =cut
                   2558: 
                   2559: sub funclist_from_array {
                   2560:     my ($items, $args) = @_;
                   2561:     $args->{legend} ||= mt('Functions');
                   2562:     return list_from_array( [$args->{legend}, @$items],
                   2563:                { listattr => {class => 'LC_funclist'} });
                   2564: }
                   2565: 
1.1       stredwic 2566: 1;
1.23      matthew  2567: 
1.1       stredwic 2568: __END__

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