Annotation of loncom/homework/edit.pm, revision 1.132

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # edit mode helpers
1.25      albertel    3: #
1.132   ! www         4: # $Id: edit.pm,v 1.131 2010/10/10 00:14:15 www Exp $
1.25      albertel    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: #
1.82      www        28: 
1.125     raeburn    29: =pod
                     30: 
1.117     jms        31: =head1 NAME
                     32: 
                     33: Apache::edit - edit mode helpers
                     34: 
                     35: =head1 SYNOPSIS
                     36: 
                     37: Invoked by many homework and xml related modules.
                     38: 
                     39:  &Apache::edit::SUBROUTINENAME(ARGUMENTS);
                     40: 
                     41: =head1 INTRODUCTION
                     42: 
                     43: This module outputs HTML syntax helpful for the rendering of edit
                     44: mode interfaces.
                     45: 
                     46: This is part of the LearningOnline Network with CAPA project
                     47: described at http://www.lon-capa.org.
                     48: 
1.118     jms        49: =head1 SUBROUTINES
1.117     jms        50: 
                     51: =over 4
                     52: 
1.118     jms        53: =item initialize_edit() 
1.117     jms        54: 
1.118     jms        55: initialize edit (set colordepth to zero)
1.117     jms        56: 
1.118     jms        57: =item tag_start($target,$token,$description)
1.117     jms        58: 
1.118     jms        59: provide deletion and insertion lists
1.117     jms        60: for the manipulation of a start tag; return a scalar string
                     61: 
1.118     jms        62: =item tag_end($target,$token,$description)
1.117     jms        63: 
1.118     jms        64: ending syntax corresponding to
1.117     jms        65: &tag_start. return a scalar string.
                     66: 
1.118     jms        67: =item  start_table($token)
1.117     jms        68: 
1.118     jms        69: start table; update colordepth; return scalar string.
1.117     jms        70: 
1.118     jms        71: =item end_table()
1.117     jms        72: 
1.118     jms        73: reduce color depth; end table; return scalar string
1.117     jms        74: 
1.118     jms        75: =item start_spanning_row()
1.117     jms        76: 
1.118     jms        77: start a new table row spanning the 'edit' environment.
1.117     jms        78: 
1.118     jms        79: =item start_row()
1.117     jms        80: 
1.118     jms        81: start a new table row and element. 
1.117     jms        82: 
1.118     jms        83: =item end_row() 
1.117     jms        84: 
1.118     jms        85: end current table element and row.
1.117     jms        86: 
1.118     jms        87: =item movebuttons($target,$token)
1.117     jms        88: 
1.118     jms        89: move-up and move-down buttons; return scalar string
1.117     jms        90: 
1.118     jms        91: =item deletelist($target,$token)
1.117     jms        92: 
1.118     jms        93: provide a yes option in an HTML select element; return scalar string
1.117     jms        94: 
1.118     jms        95: =item handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
                     96: $style)
1.117     jms        97: 
1.118     jms        98: respond to a user delete request by passing relevant stack
1.117     jms        99: and array information to various rendering functions; return a scalar string
                    100: 
1.118     jms       101: =item get_insert_list($token)
                    102: 
                    103: provide an insertion list based on possibilities from lonxml; return a scalar string
1.117     jms       104: 
1.118     jms       105: =item insertlist($target,$token)
1.117     jms       106: 
1.118     jms       107: api that uses get_insert_list; return a scalar string
1.117     jms       108: 
1.118     jms       109: =item handleinsert($token)
1.117     jms       110: 
1.118     jms       111: provide an insertion list based on possibilities from lonxml; return a scalar string
1.117     jms       112: 
1.118     jms       113: =item get_insert_list($token)
1.117     jms       114: 
1.118     jms       115: provide an insertion list based on possibilities from lonxml; return a scalar string
1.117     jms       116: 
1.118     jms       117: =item browse($elementname)
1.117     jms       118: 
1.118     jms       119: provide a link which will open up the filesystem browser (lonindexer) and, once a file is selected, place the result in the form element $elementname.
1.117     jms       120: 
1.118     jms       121: =item search($elementname)
1.117     jms       122: 
1.118     jms       123: provide a link which will open up the filesystem searcher (lonsearchcat) and, once a file is selected, place the result in the form element $elementname.
                    124: 
                    125: =item editline(tag,data,description,size)
                    126: 
                    127: Provide a <input type="text" ../> for single-line text entry.  This is to be used for text enclosed by tags, not arguements/parameters associated with a tag.
1.117     jms       128: 
                    129: =back
                    130: 
                    131: =cut
                    132: 
1.1       albertel  133: package Apache::edit; 
                    134: 
                    135: use strict;
1.92      albertel  136: use Apache::lonnet;
1.32      albertel  137: use HTML::Entities();
1.71      www       138: use Apache::lonlocal;
1.102     www       139: use lib '/home/httpd/lib/perl/';
                    140: use LONCAPA;
                    141:  
1.1       albertel  142: 
1.10      albertel  143: # Global Vars
                    144: # default list of colors to use in editing
                    145: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
                    146: # depth of nesting of edit
                    147: $Apache::edit::colordepth=0;
1.38      www       148: @Apache::edit::inserttag=();
1.49      www       149: # image-type responses: active background image and curdepth at definition
                    150: $Apache::edit::bgimgsrc='';
                    151: $Apache::edit::bgimgsrccurdepth='';
1.10      albertel  152: 
                    153: sub initialize_edit {
1.63      albertel  154:     $Apache::edit::colordepth=0;
                    155:     @Apache::edit::inserttag=();
1.10      albertel  156: }
                    157: 
1.1       albertel  158: sub tag_start {
1.63      albertel  159:     my ($target,$token,$description) = @_;
                    160:     my $result='';
                    161:     if ($target eq "edit") {
                    162: 	my $tag=$token->[1];
                    163: 	if (!$description) {
                    164: 	    $description=&Apache::lonxml::description($token);
                    165: 	    if (!$description) { $description="&lt;$tag&gt;"; }
                    166: 	}
                    167: 	$result.= &start_table($token)."<tr><td>$description</td>
1.116     bisitz    168:                       <td>".&mt('Delete?').' '.
1.63      albertel  169: 		      &deletelist($target,$token)
                    170: 		      ."</td>
                    171:                        <td>".
                    172: 		       &insertlist($target,$token);
1.27      matthew   173: #<td>". 
1.22      albertel  174: #  &movebuttons($target,$token).
                    175: #    "</tr><tr><td colspan=\"3\">\n";
1.66      matthew   176: 	my @help = Apache::lonxml::helpinfo($token);
1.63      albertel  177: 	if ($help[0]) {
1.88      albertel  178: 	    $result .= '</td><td align="right" valign="top">' .
                    179: 		Apache::loncommon::help_open_topic(@help);
                    180: 	} else { $result .= "</td><td>&nbsp;"; }
1.63      albertel  181: 	$result .= &end_row().&start_spanning_row();
                    182:     }
                    183:     return $result;
1.1       albertel  184: }
                    185: 
                    186: sub tag_end {
1.63      albertel  187:     my ($target,$token,$description) = @_;
                    188:     my $result='';
                    189:     if ($target eq 'edit') {
                    190: 	$result.="</td></tr>".&end_table()."\n";
                    191:     }
                    192:     return $result;
1.4       albertel  193: }
1.1       albertel  194: 
1.10      albertel  195: sub start_table {
1.63      albertel  196:     my ($token)=@_;
1.104     albertel  197:     my $tag = &Apache::lonxml::get_tag($token);
                    198:     
                    199:     my $color = $Apache::lonxml::insertlist{"$tag.color"};
                    200:     &Apache::lonxml::debug(" $tag -- $color");
1.63      albertel  201:     if (!defined($color)) {
                    202: 	$color = $Apache::edit::colorlist[$Apache::edit::colordepth];
                    203:     }
                    204:     $Apache::edit::colordepth++;
                    205:     push(@Apache::edit::inserttag,$token->[1]);
                    206:     my $result='<div align="right">';
1.124     bisitz    207:     $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="3" cellpadding="2">';
1.63      albertel  208:     return $result;
1.10      albertel  209: }
                    210: 
                    211: sub end_table {
1.63      albertel  212:     $Apache::edit::colordepth--;
                    213:     my $result='</table></div>';
1.94      albertel  214:     $result.='<div align="left"><table><tr><td>';
1.63      albertel  215: 
                    216:     my ($tagname,$closingtag);
                    217:     if (defined($Apache::edit::inserttag[-2])) {
                    218: 	$tagname=$Apache::edit::inserttag[-2];
1.105     albertel  219:     } else {
                    220: 	if ($Apache::lonhomework::parsing_a_task) {
                    221: 	    $tagname='Task';
                    222: 	} else {
                    223: 	    $tagname='problem';
                    224: 	}
                    225:     }
1.63      albertel  226:     if (defined($Apache::edit::inserttag[-1])) {
                    227: 	$closingtag=$Apache::edit::inserttag[-1];
                    228:     }
                    229:     $result.=&innerinsertlist('edit',$tagname,$closingtag).
1.94      albertel  230: 	"</td></tr></table></div>";
1.105     albertel  231:     my $last = pop(@Apache::edit::inserttag);
1.63      albertel  232:     return $result;
1.10      albertel  233: }
                    234: 
1.124     bisitz    235: sub start_spanning_row { return '<tr><td colspan="5" bgcolor="#F0F0F0">';}
1.41      www       236: sub start_row          { return '<tr><td bgcolor="#DDDDDD">';            }
1.27      matthew   237: sub end_row            { return '</td></tr>';          }
                    238: 
1.22      albertel  239: sub movebuttons {
1.63      albertel  240:     my ($target,$token) = @_;
                    241:     my $result='<input type="submit" name="moveup.'.
                    242: 	$Apache::lonxml::curdepth.'" value="Move Up" />';
                    243:     $result.='<input type="submit" name="movedown.'.
                    244: 	$Apache::lonxml::curdepth.'" value="Move Down" />';
                    245:     return $result;
1.22      albertel  246: }
                    247: 
1.8       albertel  248: sub deletelist {
1.63      albertel  249:     my ($target,$token) = @_;
                    250:     my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14      albertel  251: <option></option>
1.116     bisitz    252: <option>".&mt('yes')."</option>
1.8       albertel  253: </select>";
1.63      albertel  254:     return $result;
1.8       albertel  255: }
                    256: 
1.14      albertel  257: sub handle_delete {
1.92      albertel  258:     if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
1.63      albertel  259:     my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                    260:     my $result=0;
                    261:     if ($space) {
                    262: 	my $sub1="$space\:\:delete_$token->[1]";
                    263: 	{
                    264: 	    no strict 'refs';
                    265: 	    if (defined &$sub1) {
                    266: 		$result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
                    267: 	    }
                    268: 	}
                    269:     }
                    270:     if (!$result) {
                    271: 	my $endtag='/'.$token->[1];
1.97      albertel  272: 	my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style);
1.63      albertel  273: 	$$parser['-1']->get_token();
                    274: 	&Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
                    275: 	&Apache::lonxml::end_tag($tagstack,$parstack,$token);
                    276:     }
                    277:     return 1;
1.14      albertel  278: }
                    279: 
1.7       albertel  280: sub get_insert_list {
1.63      albertel  281:     my ($tagname) = @_;
                    282:     my $result='';
1.104     albertel  283:     my @tags= ();
1.63      albertel  284:     #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
                    285:     if ($Apache::lonxml::insertlist{"$tagname.which"}) {
1.104     albertel  286: 	push (@tags, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
1.63      albertel  287:     }
                    288:     foreach my $namespace (@Apache::lonxml::namespace) {
                    289: 	if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
1.104     albertel  290: 	    push (@tags, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
1.63      albertel  291: 	}
                    292:     }
1.104     albertel  293:     if (@tags) {
1.63      albertel  294: 	my %options;
1.104     albertel  295: 	foreach my $tag (@tags) {
                    296: 	    my $descrip=$Apache::lonxml::insertlist{"$tag.description"};
                    297: 	    my $tagnum =$Apache::lonxml::insertlist{"$tag.num"};
1.63      albertel  298: 	    $options{$descrip} ="<option value=\"$tagnum\">".
                    299: 		$descrip."</option>\n";
                    300: 	}
                    301: 	foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
1.88      albertel  302: 	if ($result) { $result='<option selected="selected"></option>'.$result; }
1.63      albertel  303:     }
                    304:     return $result;
1.5       albertel  305: }
                    306: 
1.4       albertel  307: sub insertlist {
1.63      albertel  308:     my ($target,$token) = @_;
                    309:     return &innerinsertlist($target,$token->[1]);
1.38      www       310: }
                    311: 
                    312: sub innerinsertlist {
1.63      albertel  313:     my ($target,$tagname,$closingtag) = @_;
                    314:     my $result;
                    315:     my $after='';
                    316:     if ($closingtag) {
                    317: 	$after='_after_'.$closingtag; 
                    318:     }
                    319:     if ($target eq 'edit') {
                    320: 	my $optionlist= &get_insert_list($tagname);
                    321: 	if ($optionlist) {
1.116     bisitz    322: 	    $result = &mt('Insert:')."
1.63      albertel  323:             <select name=\"insert$after\_$Apache::lonxml::curdepth\">
                    324:                   $optionlist
                    325:             </select>"
                    326: 	} else {
                    327: 	    $result="&nbsp;";
                    328: 	}
1.6       albertel  329:     }
1.63      albertel  330:     return $result;
1.6       albertel  331: }
                    332: 
1.7       albertel  333: sub handle_insert {
1.92      albertel  334:     if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
                    335:     my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"};
1.104     albertel  336:     return &do_insert($tagnum);
1.38      www       337: }
                    338: 
                    339: sub handle_insertafter {
1.63      albertel  340:     my $tagname=shift;
1.104     albertel  341:     if ($env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '') {
                    342: 	return '';
                    343:     }
                    344:     my $tagnum =$env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
1.105     albertel  345:     return &do_insert($tagnum,1);
1.104     albertel  346: }
                    347: 
                    348: sub do_insert {
1.105     albertel  349:     my ($tagnum,$after) = @_;
1.63      albertel  350:     my $result;
1.104     albertel  351: 
                    352:     my $newtag = $Apache::lonxml::insertlist{"$tagnum.tag"};
                    353:     my $func   = $Apache::lonxml::insertlist{"$newtag.function"};
1.63      albertel  354:     if ($func eq 'default') {
                    355: 	my $namespace;
                    356: 	if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
1.105     albertel  357: 	my $depth = scalar(@Apache::lonxml::depthcounter);
                    358: 	$depth -- if ($after);
                    359: 	my $inset = "\t"x$depth;
1.126     www       360: 	$result.="\n$inset<$newtag></$newtag>";
1.38      www       361:     } else {
1.63      albertel  362: 	if (defined(&$func)) {
                    363: 	    {
                    364: 		no strict 'refs';
                    365: 		$result.=&$func();
                    366: 	    }
                    367: 	} else {
1.104     albertel  368: 	    &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined. ($tagnum)");
1.63      albertel  369: 	}
1.5       albertel  370:     }
1.63      albertel  371:     return $result;
1.69      albertel  372: }
                    373: 
                    374: sub insert_img {
                    375:     return '
                    376:     <img />';
1.16      albertel  377: }
                    378: 
                    379: sub insert_responseparam {
1.63      albertel  380:     return '
1.16      albertel  381:     <responseparam />';
1.5       albertel  382: }
                    383: 
1.87      albertel  384: sub insert_parameter {
                    385:     return '
                    386:     <parameter />';
                    387: }
                    388: 
1.24      albertel  389: sub insert_formularesponse {
1.63      albertel  390:     return '
1.24      albertel  391: <formularesponse answer="" samples="">
1.86      albertel  392:     <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
                    393:     <textline size="25"/>
1.24      albertel  394:     <hintgroup>
1.78      www       395:     <startouttext /><endouttext />
1.24      albertel  396:     </hintgroup>
                    397: </formularesponse>';
                    398: }
                    399: 
1.129     www       400: sub insert_functionplotresponse {
                    401:     return '
                    402: <functionplotresponse>
1.130     www       403: <spline />
1.132   ! www       404: <functionplotrule />
1.129     www       405: </functionplotresponse>';
                    406: }
                    407: 
1.131     www       408: sub insert_spline {
                    409:     return '
                    410: <spline />';
                    411: }
                    412: 
                    413: sub insert_backgroundplot {
                    414:     return '
                    415: <backgroundplot />';
                    416: }
                    417: 
1.132   ! www       418: sub insert_functionplotrule {
1.131     www       419:     return '
1.132   ! www       420: <functionplotrule />';
1.131     www       421: }
                    422: 
                    423: 
                    424: 
1.15      albertel  425: sub insert_numericalresponse {
1.63      albertel  426:     return '
1.15      albertel  427: <numericalresponse answer="">
1.90      www       428: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
                    429: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
1.15      albertel  430:     <textline />
                    431:     <hintgroup>
1.78      www       432:     <startouttext /><endouttext />
1.15      albertel  433:     </hintgroup>
                    434: </numericalresponse>';
                    435: }
                    436: 
1.96      albertel  437: sub insert_customresponse {
1.95      albertel  438:     return '
1.96      albertel  439: <customresponse>
1.95      albertel  440:     <answer type="loncapa/perl">
                    441:     </answer>
                    442:     <textline />
                    443:     <hintgroup>
                    444:     <startouttext /><endouttext />
                    445:     </hintgroup>
1.96      albertel  446: </customresponse>';
1.95      albertel  447: }
                    448: 
1.96      albertel  449: sub insert_customresponse_answer {
1.95      albertel  450:     return '
                    451:     <answer type="loncapa/perl">
                    452:     </answer>
                    453: ';
                    454: }
                    455: 
1.106     albertel  456: sub insert_customhint {
                    457:     return '
                    458:         <customhint>
                    459:             <answer type="loncapa/perl">
                    460:             </answer>
                    461:         </customhint>';
                    462: }
                    463: 
                    464: sub insert_customhint_answer {
                    465:     return '
                    466:             <answer type="loncapa/perl">
                    467:             </answer>
                    468: ';
                    469: }
                    470: 
                    471: sub insert_mathresponse {
                    472:     return '
                    473: <mathresponse>
                    474:     <answer>
                    475:     </answer>
                    476:     <textline />
                    477:     <hintgroup>
                    478:         <startouttext />
                    479:         <endouttext />
                    480:     </hintgroup>
                    481: </mathresponse>';
                    482: }
                    483: 
                    484: sub insert_mathresponse_answer {
                    485:     return '
                    486:     <answer>
                    487:     </answer>
                    488: ';
                    489: }
                    490: 
                    491: sub insert_mathhint {
                    492:     return '
                    493:         <mathhint>
                    494:             <answer>
                    495:             </answer>
                    496:         </mathhint>';
                    497: }
                    498: 
                    499: sub insert_mathhint_answer {
                    500:     return '
                    501:             <answer>
                    502:             </answer>
                    503: ';
                    504: }
                    505: 
1.18      albertel  506: sub insert_stringresponse {
1.63      albertel  507:     return '
1.18      albertel  508: <stringresponse answer="" type="">
                    509:     <textline />
                    510:     <hintgroup>
1.78      www       511:     <startouttext /><endouttext />
1.18      albertel  512:     </hintgroup>
                    513: </stringresponse>';
1.36      albertel  514: }
                    515: 
                    516: sub insert_essayresponse {
1.63      albertel  517:     return '
1.36      albertel  518: <essayresponse>
                    519:     <textfield></textfield>
                    520: </essayresponse>';
1.54      albertel  521: }
                    522: 
                    523: sub insert_imageresponse {
1.63      albertel  524:     return '
1.54      albertel  525: <imageresponse max="1">
                    526:     <foilgroup>
1.89      albertel  527:       <foil>
                    528:       </foil>
1.54      albertel  529:     </foilgroup>
                    530:     <hintgroup>
1.78      www       531:     <startouttext /><endouttext />
1.54      albertel  532:     </hintgroup>
                    533: </imageresponse>';
1.18      albertel  534: }
                    535: 
1.7       albertel  536: sub insert_optionresponse {
1.63      albertel  537:     return '
1.7       albertel  538: <optionresponse max="10">
                    539:     <foilgroup options="">
1.89      albertel  540:       <foil>
                    541:          <startouttext /><endouttext />
                    542:       </foil>
1.7       albertel  543:     </foilgroup>
1.14      albertel  544:     <hintgroup>
1.78      www       545:     <startouttext /><endouttext />
1.14      albertel  546:     </hintgroup>
1.7       albertel  547: </optionresponse>';
1.1       albertel  548: }
                    549: 
1.72      albertel  550: sub insert_organicresponse {
                    551:     return '
                    552: <organicresponse>
                    553:     <textline />
                    554:     <hintgroup>
1.78      www       555:     <startouttext /><endouttext />
1.72      albertel  556:     </hintgroup>
                    557: </organicresponse>';
                    558: }
                    559: 
                    560: sub insert_organicstructure {
                    561:     return '
                    562: <organicstructure />
                    563: ';
                    564: }
                    565: 
1.23      albertel  566: sub insert_radiobuttonresponse {
1.63      albertel  567:     return '
1.23      albertel  568: <radiobuttonresponse max="10">
                    569:     <foilgroup>
1.89      albertel  570:       <foil>
                    571:          <startouttext /><endouttext />
                    572:       </foil>
1.23      albertel  573:     </foilgroup>
                    574:     <hintgroup>
1.78      www       575:     <startouttext /><endouttext />
1.23      albertel  576:     </hintgroup>
                    577: </radiobuttonresponse>';
1.72      albertel  578: }
                    579: 
                    580: sub insert_reactionresponse {
                    581:     return '
                    582: <reactionresponse>
                    583:     <textline />
                    584:     <hintgroup>
1.78      www       585:     <startouttext /><endouttext />
1.72      albertel  586:     </hintgroup>
                    587: </reactionresponse>';
1.43      albertel  588: }
                    589: 
                    590: sub insert_rankresponse {
1.63      albertel  591:     return '
1.43      albertel  592: <rankresponse max="10">
                    593:     <foilgroup options="">
1.89      albertel  594:       <foil>
                    595:          <startouttext /><endouttext />
                    596:       </foil>
1.43      albertel  597:     </foilgroup>
                    598:     <hintgroup>
1.78      www       599:     <startouttext /><endouttext />
1.43      albertel  600:     </hintgroup>
                    601: </rankresponse>';
1.23      albertel  602: }
                    603: 
1.44      albertel  604: sub insert_matchresponse {
1.63      albertel  605:     return '
1.44      albertel  606: <matchresponse max="10">
                    607:     <foilgroup options="">
                    608:       <itemgroup>
                    609:       </itemgroup>
1.89      albertel  610:       <foil>
                    611:          <startouttext /><endouttext />
                    612:       </foil>
1.44      albertel  613:     </foilgroup>
                    614:     <hintgroup>
1.78      www       615:     <startouttext /><endouttext />
1.44      albertel  616:     </hintgroup>
                    617: </matchresponse>';
                    618: }
                    619: 
1.127     www       620: sub insert_startpartmarker { return '<startpartmarker />'; }
                    621: sub insert_endpartmarker { return '<endpartmarker />'; }
                    622: 
1.21      albertel  623: sub insert_displayduedate { return '<displayduedate />'; }
                    624: sub insert_displaytitle   { return '<displaytitle />'; }
1.22      albertel  625: sub insert_hintpart {
1.63      albertel  626:     return '
1.22      albertel  627: <hintpart on="default">
1.90      www       628:     <startouttext/><endouttext />
1.22      albertel  629: </hintpart>';
1.67      albertel  630: }
                    631: 
                    632: sub insert_hintgroup {
                    633:   return '
                    634: <hintgroup>
1.78      www       635:     <startouttext /><endouttext />
1.67      albertel  636: </hintgroup>';
1.22      albertel  637: }
                    638: 
                    639: sub insert_numericalhint {
1.63      albertel  640:     return '
1.22      albertel  641: <numericalhint>
                    642: </numericalhint>';
1.46      albertel  643: }
                    644: 
1.123     www       645: sub insert_reactionhint {
                    646:     return '
                    647: <reactionhint>
                    648: </reactionhint>';
                    649: }
                    650: 
                    651: sub insert_organichint {
                    652:     return '
                    653: <organichint>
                    654: </organichint>';
                    655: }
                    656: 
1.46      albertel  657: sub insert_stringhint {
1.63      albertel  658:     return '
1.46      albertel  659: <stringhint>
                    660: </stringhint>';
                    661: }
                    662: 
                    663: sub insert_formulahint {
1.63      albertel  664:     return '
1.46      albertel  665: <formulahint>
                    666: </formulahint>';
1.37      albertel  667: }
                    668: 
                    669: sub insert_radiobuttonhint {
1.63      albertel  670:     return '
1.37      albertel  671: <radiobuttonhint>
                    672: </radiobuttonhint>';
1.50      albertel  673: }
                    674: 
                    675: sub insert_optionhint {
1.63      albertel  676:     return '
1.50      albertel  677: <optionhint>
                    678: </optionhint>';
1.22      albertel  679: }
1.21      albertel  680: 
1.23      albertel  681: sub insert_startouttext {
1.78      www       682:     return "<startouttext /><endouttext />";
1.23      albertel  683: }
                    684: 
                    685: sub insert_script {
1.78      www       686:     return "\n<script type=\"loncapa/perl\"></script>";
1.23      albertel  687: }
                    688: 
1.98      albertel  689: sub js_change_detection {
                    690:     my $unsaved=&mt("There are unsaved changes");
                    691:     return (<<SCRIPT);
                    692: <script type="text/javascript">
                    693: var clean = true;
                    694: var is_submit = false;
1.99      albertel  695: var still_ask = false;
1.98      albertel  696: function compareForm(event_) {
                    697:         if (!event_ && window.event) {
                    698:           event_ = window.event;
                    699:         }
1.99      albertel  700: 	if ((!is_submit || (is_submit && still_ask)) && !clean) {
                    701: 	    still_ask = false;
                    702: 	    is_submit = false;
1.98      albertel  703:             event_.returnValue = "$unsaved";
                    704:             return "$unsaved";
                    705:         }
                    706: }
                    707: function unClean() {
                    708:      clean=false;
                    709: }
                    710: window.onbeforeunload = compareForm;
                    711: </script>
                    712: SCRIPT
                    713: }
                    714: 
                    715: sub form_change_detection {
                    716:     return ' onsubmit="is_submit=true;" ';
                    717: }
                    718: 
                    719: sub element_change_detection {
                    720:     return ' onchange="unClean();" ';
                    721: }
                    722: 
1.99      albertel  723: sub submit_ask_anyway {
1.113     raeburn   724:     my ($extra_action) = @_;
                    725:     return ' onclick="still_ask=true;'.$extra_action.'" ';
1.99      albertel  726: }
                    727: 
1.25      albertel  728: sub textarea_sizes {
1.63      albertel  729:     my ($data)=@_;
                    730:     my $count=0;
                    731:     my $maxlength=-1;
                    732:     foreach (split ("\n", $$data)) {
                    733: 	$count+=int(length($_)/79);
                    734: 	$count++;
                    735: 	if (length($_) > $maxlength) { $maxlength = length($_); }
                    736:     }
                    737:     my $rows = $count;
                    738:     my $cols = $maxlength;
                    739:     return ($rows,$cols);
1.25      albertel  740: }
                    741: 
1.32      albertel  742: sub editline {
1.31      matthew   743:     my ($tag,$data,$description,$size)=@_;
1.81      albertel  744:     $data=&HTML::Entities::encode($data,'<>&"');
1.112     albertel  745:     if ($description) { $description=$description."<br />"; }
1.98      albertel  746:     my $change_code = &element_change_detection();
1.31      matthew   747:     my $result = <<"END";
                    748: $description
                    749: <input type="text" name="homework_edit_$Apache::lonxml::curdepth" 
1.98      albertel  750:        value="$data" size="$size" $change_code />
1.31      matthew   751: END
                    752:     return $result;
                    753: }
                    754: 
1.2       albertel  755: sub editfield {
1.82      www       756:     my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22      albertel  757: 
1.63      albertel  758:     my ($rows,$cols)=&textarea_sizes(\$data);
1.128     raeburn   759:     my $textareaclass;
                    760:  
                    761:     if (&Apache::lonhtmlcommon::htmlareabrowser() && $usehtmlarea) { 
1.84      www       762: 	$rows+=7;      # make room for HTMLarea
                    763: 	$minheight+=7; # make room for HTMLarea
1.128     raeburn   764:         $textareaclass = ' class="LC_richDefaultOff"';
1.84      www       765:     }
1.63      albertel  766:     if ($cols > 80) { $cols = 80; }
                    767:     if ($cols < $minwidth ) { $cols = $minwidth; }
                    768:     if ($rows < $minheight) { $rows = $minheight; }
1.112     albertel  769:     if ($description) { $description=$description."<br />"; }
1.128     raeburn   770: 
1.105     albertel  771:     # remove typesetting whitespace from between data and the end tag
                    772:     # to make the edit look prettier
                    773:     $data =~ s/\n?[ \t]*$//;
                    774: 
1.103     albertel  775:     return $description."\n".'<textarea style="width:100%" rows="'.$rows.
1.63      albertel  776: 	'" cols="'.$cols.'" name="homework_edit_'.
1.82      www       777: 	$Apache::lonxml::curdepth.'" id="homework_edit_'.
1.128     raeburn   778: 	$Apache::lonxml::curdepth.'" '.&element_change_detection().
                    779:         $textareaclass.'>'.
1.85      www       780: 	&HTML::Entities::encode($data,'<>&"').'</textarea>'.
                    781: 	($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
                    782: 			 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2       albertel  783: }
                    784: 
                    785: sub modifiedfield {
1.70      albertel  786:     my ($endtag,$parser) = @_;
1.63      albertel  787:     my $result;
1.92      albertel  788:     $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70      albertel  789:     my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
                    790:     # textareas throw away intial \n 
1.105     albertel  791:     if ($bodytext=~/^\n/) {
                    792: 	$result="\n".$result;
                    793:     }
                    794:     # if there is typesetting whitespace from between the data and the end tag
                    795:     # restore to keep the source looking pretty
                    796:     if ($bodytext =~ /(\n?[ \t]*)$/) {
                    797: 	$result .= $1;
                    798:     }
1.63      albertel  799:     return $result;
1.2       albertel  800: }
                    801: 
1.15      albertel  802: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12      albertel  803: # side-effects, will modify the $token if new values are found
                    804: sub get_new_args {
1.61      albertel  805:     my ($token,$parstack,$safeeval,@args)=@_;
                    806:     my $rebuild=0;
                    807:     foreach my $arg (@args) {
1.63      albertel  808: 	#just want the string that it was set to
                    809: 	my $value=$token->[2]->{$arg};
                    810: 	my $element=&html_element_name($arg);
1.92      albertel  811: 	my $newvalue=$env{"form.$element"};
1.63      albertel  812: 	&Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
                    813: 	if (defined($newvalue) && $value ne $newvalue) {
                    814: 	    if (ref($newvalue) eq 'ARRAY') {
                    815: 		$token->[2]->{$arg}=join(',',@$newvalue);
                    816: 	    } else {
                    817: 		$token->[2]->{$arg}=$newvalue;
                    818: 	    }
1.79      albertel  819: 	    $rebuild=1;
1.111     albertel  820: 	    # add new attributes to the of the attribute seq
                    821: 	    if (!grep { $arg eq $_ } (@{ $token->[3] })) {
                    822: 		push(@{ $token->[3] },$arg);
                    823: 	    }
1.79      albertel  824: 	} elsif (!defined($newvalue) && defined($value)) {
                    825: 	    delete($token->[2]->{$arg});
1.63      albertel  826: 	    $rebuild=1;
1.61      albertel  827: 	}
1.12      albertel  828:     }
1.63      albertel  829:     return $rebuild;
1.12      albertel  830: }
                    831: 
1.15      albertel  832: # looks for /> on start tags
1.12      albertel  833: sub rebuild_tag {
1.63      albertel  834:     my ($token) = @_;
                    835:     my $result;
                    836:     if ($token->[0] eq 'S') {
                    837: 	$result = '<'.$token->[1];
1.109     albertel  838: 	foreach my $attribute (@{ $token->[3] }) {
                    839: 	    my $value = $token->[2]{$attribute};
1.111     albertel  840: 	    next if ($value eq '');
1.109     albertel  841: 	    $value =~s/^\s+|\s+$//g;
                    842: 	    $value =~s/\"//g;
                    843: 	    &Apache::lonxml::debug("setting :$attribute: to  :$value:");
                    844: 	    $result.=' '.$attribute.'="'.$value.'"';
1.63      albertel  845: 	}
                    846: 	if ($token->[4] =~ m:/>$:) {
                    847: 	    $result.=' />';
                    848: 	} else {
                    849: 	    $result.='>';
                    850: 	}
                    851:     } elsif ( $token->[0] eq 'E' ) {
                    852: 	$result = '</'.$token->[1].'>';
1.12      albertel  853:     }
1.63      albertel  854:     return $result;
1.12      albertel  855: }
1.13      albertel  856: 
1.47      matthew   857: sub html_element_name {
                    858:     my ($name) = @_;
1.48      albertel  859:     return $name.'_'.$Apache::lonxml::curdepth;
                    860: }
                    861: 
                    862: sub hidden_arg {
                    863:     my ($name,$token) = @_;
                    864:     my $result;
                    865:     my $arg=$token->[2]{$name};
                    866:     $result='<input name="'.&html_element_name($name).
                    867: 	'" type="hidden" value="'.$arg.'" />';
1.61      albertel  868:     return $result;
                    869: }
                    870: 
                    871: sub checked_arg {
                    872:     my ($description,$name,$list,$token) = @_;
                    873:     my $result;
                    874:     my $optionlist="";
                    875:     my $allselected=$token->[2]{$name};
1.71      www       876:     $result=&mt($description);
1.61      albertel  877:     foreach my $option (@$list) {
                    878: 	my ($value,$text);
                    879: 	if ( ref($option) eq 'ARRAY') {
                    880: 	    $value='value="'.$$option[0].'"';
                    881: 	    $text=$$option[1];
                    882: 	    $option=$$option[0];
                    883: 	} else {
                    884: 	    $text=$option;
                    885: 	    $value='value="'.$option.'"';
                    886: 	}
1.119     raeburn   887: 	$result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
                    888: 	    &html_element_name($name).'"';
1.61      albertel  889: 	foreach my $selected (split(/,/,$allselected)) {
                    890: 	    if ( $selected eq $option ) {
1.119     raeburn   891: 		$result.=' checked="checked" ';
1.61      albertel  892: 		last;
                    893: 	    }
                    894: 	}
1.119     raeburn   895: 	$result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
1.61      albertel  896:     }
1.48      albertel  897:     return $result;
1.47      matthew   898: }
                    899: 
1.13      albertel  900: sub text_arg {
1.63      albertel  901:     my ($description,$name,$token,$size) = @_;
                    902:     my $result;
                    903:     if (!defined $size) { $size=20; }
                    904:     my $arg=$token->[2]{$name};
1.71      www       905:     $result=&mt($description).'&nbsp;<input name="'.&html_element_name($name).
1.98      albertel  906: 	'" type="text" value="'.$arg.'" size="'.$size.'" '.
                    907: 	&element_change_detection().'/>';
1.119     raeburn   908:     return '<span class="LC_nobreak">'.$result.'</span>';
1.13      albertel  909: }
                    910: 
                    911: sub select_arg {
1.39      albertel  912:     my ($description,$name,$list,$token) = @_;
                    913:     my $result;
                    914:     my $optionlist="";
                    915:     my $selected=$token->[2]{$name};
1.121     raeburn   916:     if (ref($list) eq 'ARRAY') {
                    917:         foreach my $option (@{$list}) {
                    918: 	    my ($text,$value);
                    919: 	    if (ref($option) eq 'ARRAY') {
                    920: 	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
                    921: 	        $text=$option->[1];
                    922: 	        $option=$option->[0];
                    923: 	    } else {
                    924: 	        $text=$option;
                    925: 	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
                    926: 	    }
                    927: 	    if ( $selected eq $option ) {
                    928: 	        $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
                    929: 	    } else {
                    930: 	        $optionlist.="<option $value >".&mt($text)."</option>\n";
                    931: 	    }
                    932:         }
1.13      albertel  933:     }
1.120     bisitz    934:     $result.='<span class="LC_nobreak">'.&mt($description).'&nbsp;<select name="'.
1.98      albertel  935: 	&html_element_name($name).'" '.&element_change_detection().' >
1.13      albertel  936:        '.$optionlist.'
1.119     raeburn   937:       </select></span>';
1.39      albertel  938:     return $result;
1.13      albertel  939: }
                    940: 
1.19      albertel  941: sub select_or_text_arg {
1.39      albertel  942:     my ($description,$name,$list,$token,$size) = @_;
                    943:     my $result;
                    944:     my $optionlist="";
                    945:     my $found=0;
                    946:     my $selected=$token->[2]{$name};
1.121     raeburn   947:     if (ref($list) eq 'ARRAY') {
                    948:         foreach my $option (@{$list}) {
                    949: 	    my ($text,$value);
                    950: 	    if (ref($option) eq 'ARRAY') {
                    951: 	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
                    952: 	        $text=$option->[1];
                    953: 	        $option=$option->[0];
                    954: 	    } else {
                    955: 	        $text=$option;
                    956: 	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
                    957: 	    }
                    958: 	    if ( $selected eq $option ) {
                    959: 	        $optionlist.="<option $value selected=\"selected\">$text</option>\n";
                    960: 	        $found=1;
                    961: 	    } else {
                    962: 	        $optionlist.="<option $value>$text</option>\n";
                    963: 	    }
                    964:         }
1.39      albertel  965:     }
1.60      www       966:     $optionlist.="<option value=\"TYPEDINVALUE\"".
1.88      albertel  967:  	((!$found)?' selected="selected"':'').
1.73      www       968:  	">".&mt('Type-in value')."</option>\n";
1.60      www       969: #
1.98      albertel  970:     my $change_code=&element_change_detection();
1.60      www       971:     my $element=&html_element_name($name);
                    972:     my $selectelement='select_list_'.$element;
                    973:     my $typeinelement='type_in_'.$element;
                    974:     my $typeinvalue=($found?'':$selected);
                    975: #
                    976:     my $hiddenvalue='this.form.'.$element.'.value';
                    977:     my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
                    978:     my $selectedvalue='this.form.'.$selectelement.
                    979: 	     '.options['.$selectedindex.'].value';
                    980:     my $typedinvalue='this.form.'.$typeinelement.'.value';
                    981:     my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71      www       982:     $description=&mt($description);
1.60      www       983: #
                    984:     return (<<ENDSELECTORTYPE);
1.119     raeburn   985: <span class="LC_nobreak">
1.60      www       986: $description
                    987: &nbsp;<select name="$selectelement"
1.74      albertel  988: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60      www       989: $optionlist
                    990: </select>
                    991: <input type="text" size="$size" name="$typeinelement"
                    992:        value="$typeinvalue" 
                    993: onChange="$hiddenvalue=$typedinvalue;"
                    994: onFocus="$selectedindex=$selecttypeinindex-1;" />
1.98      albertel  995: <input type="hidden" name="$element" value="$selected" $change_code />
1.119     raeburn   996: </span>
1.60      www       997: ENDSELECTORTYPE
1.19      albertel  998: }
1.29      matthew   999: 
1.49      www      1000: #----------------------------------------------------- image coordinates
                   1001: # single image coordinates, x, y 
                   1002: sub entercoords {
1.80      albertel 1003:     my ($idx,$idy,$mode,$width,$height) = @_;
1.49      www      1004:     unless ($Apache::edit::bgimgsrc) { return ''; }
                   1005:     if ($idx) { $idx.='_'; }
                   1006:     if ($idy) { $idy.='_'; }
1.102     www      1007:     my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49      www      1008:     my $form    = 'lonhomework';
                   1009:     my $element;
                   1010:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1011:         $element = &escape("$Apache::lonxml::curdepth");
1.49      www      1012:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1013:         $element = &escape('homework_edit_'.
1.49      www      1014:                                            $Apache::lonxml::curdepth);
                   1015:     }
1.80      albertel 1016:     my $id=$Apache::lonxml::curdepth;
                   1017:     my %data=("imagechoice.$id.type"      =>'point',
                   1018: 	      "imagechoice.$id.formname"  =>$form,
                   1019: 	      "imagechoice.$id.formx"     =>"$idx$element",
                   1020: 	      "imagechoice.$id.formy"     =>"$idy$element",
                   1021: 	      "imagechoice.$id.file"      =>$bgfile,
                   1022: 	      "imagechoice.$id.formcoord" =>$element);
1.49      www      1023:     if ($height) {
1.80      albertel 1024: 	$data{"imagechoice.$id.formheight"}=$height.'_'.
                   1025: 	    $Apache::edit::bgimgsrccurdepth;
1.49      www      1026:     }
                   1027:     if ($width) {
1.80      albertel 1028: 	$data{"imagechoice.$id.formwidth"}=$width.'_'.
                   1029: 	    $Apache::edit::bgimgsrccurdepth;
1.49      www      1030:     }
1.114     raeburn  1031:     &Apache::lonnet::appenv(\%data);
1.80      albertel 1032:     my $text="Click Coordinates";
                   1033:     my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49      www      1034:     return $result;
                   1035: }
                   1036: 
1.77      albertel 1037: # coordinates (x1,y1)-(x2,y2)...
                   1038: # mode can be either box, or polygon
                   1039: sub entercoord {
                   1040:     my ($idx,$mode,$width,$height,$type) = @_;
1.49      www      1041:     unless ($Apache::edit::bgimgsrc) { return ''; }
1.102     www      1042:     my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75      albertel 1043:     my $form    = 'lonhomework';
                   1044:     my $element;
                   1045:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1046:         $element = &escape("$idx\_$Apache::lonxml::curdepth");
1.75      albertel 1047:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1048:         $element = &escape('homework_edit_'.
1.75      albertel 1049:                                            $Apache::lonxml::curdepth);
                   1050:     }
1.76      albertel 1051:     my $id=$Apache::lonxml::curdepth;
1.77      albertel 1052:     my %data=("imagechoice.$id.type"      =>$type,
1.76      albertel 1053: 	      "imagechoice.$id.formname"  =>$form,
                   1054: 	      "imagechoice.$id.file"      =>$bgfile,
                   1055: 	      "imagechoice.$id.formcoord" =>$element);
1.75      albertel 1056:     if ($height) {
1.76      albertel 1057: 	$data{"imagechoice.$id.formheight"}=$height.'_'.
                   1058: 	    $Apache::edit::bgimgsrccurdepth;
1.75      albertel 1059:     }
                   1060:     if ($width) {
1.76      albertel 1061: 	$data{"imagechoice.$id.formwidth"}=$width.'_'.
                   1062: 	    $Apache::edit::bgimgsrccurdepth;
1.75      albertel 1063:     }
1.114     raeburn  1064:     &Apache::lonnet::appenv(\%data);
1.77      albertel 1065:     my $text="Enter Coordinates";
                   1066:     if ($type eq 'polygon') { $text='Create Polygon Data'; }
                   1067:     my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49      www      1068:     return $result;
                   1069: }
1.76      albertel 1070: 
                   1071: sub deletecoorddata {
1.122     raeburn  1072:     &Apache::lonnet::delenv('imagechoice.');
1.76      albertel 1073: }
                   1074: 
1.29      matthew  1075: #----------------------------------------------------- browse
                   1076: sub browse {
                   1077:     # insert a link to call up the filesystem browser (lonindexer)
1.107     banghart 1078:     my ($id, $mode, $titleid, $only) = @_;
1.29      matthew  1079:     my $form    = 'lonhomework';
1.42      matthew  1080:     my $element;
                   1081:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1082:         $element = &escape("$id\_$Apache::lonxml::curdepth");
1.42      matthew  1083:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1084:         $element = &escape('homework_edit_'.
1.68      albertel 1085:                                            $Apache::lonxml::curdepth);	
                   1086:     }
                   1087:     my $titleelement;
                   1088:     if ($titleid) {
1.107     banghart 1089: 	$titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.108     banghart 1090:     } else {
                   1091:         $titleelement=",'$only'";
1.42      matthew  1092:     }
1.29      matthew  1093:     my $result = <<"ENDBUTTON";
1.68      albertel 1094: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29      matthew  1095: ENDBUTTON
                   1096:     return $result;
                   1097: }
                   1098: 
1.30      matthew  1099: #----------------------------------------------------- browse
                   1100: sub search {
                   1101:     # insert a link to call up the filesystem browser (lonindexer)
1.68      albertel 1102:     my ($id, $mode, $titleid) = @_;
1.30      matthew  1103:     my $form    = 'lonhomework';
1.49      www      1104:     my $element;
                   1105:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1106:         $element = &escape("$id\_$Apache::lonxml::curdepth");
1.49      www      1107:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1108:         $element = &escape('homework_edit_'.
1.49      www      1109:                                            $Apache::lonxml::curdepth);
                   1110:     }
1.68      albertel 1111:     my $titleelement;
                   1112:     if ($titleid) {
1.102     www      1113: 	$titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.68      albertel 1114:     }
1.30      matthew  1115:     my $result = <<"ENDBUTTON";
1.68      albertel 1116: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30      matthew  1117: ENDBUTTON
                   1118:     return $result;
                   1119: }
                   1120: 
                   1121: 
1.1       albertel 1122: 1;
                   1123: __END__
1.26      harris41 1124: 
                   1125: 

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