Annotation of loncom/homework/edit.pm, revision 1.136

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # edit mode helpers
1.25      albertel    3: #
1.136   ! www         4: # $Id: edit.pm,v 1.135 2011/08/09 16:12:21 bisitz 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>
1.133     www       403: <functionplotelements>
1.130     www       404: <spline />
1.133     www       405: </functionplotelements>
                    406: <functionplotruleset>
1.132     www       407: <functionplotrule />
1.133     www       408: </functionplotruleset>
1.129     www       409: </functionplotresponse>';
                    410: }
                    411: 
1.131     www       412: sub insert_spline {
                    413:     return '
                    414: <spline />';
                    415: }
                    416: 
                    417: sub insert_backgroundplot {
                    418:     return '
                    419: <backgroundplot />';
                    420: }
                    421: 
1.136   ! www       422: sub insert_plotobject {
        !           423:     return '
        !           424: <plotobject />';
        !           425: }
        !           426: 
        !           427: sub insert_plotvector {
        !           428:     return '
        !           429: <plotvector />';
        !           430: }
        !           431: 
1.132     www       432: sub insert_functionplotrule {
1.131     www       433:     return '
1.132     www       434: <functionplotrule />';
1.131     www       435: }
                    436: 
1.133     www       437: sub insert_functionplotruleset {
                    438:     return '
                    439: <functionplotruleset>
                    440: <functionplotrule />
                    441: </functionplotruleset>';
                    442: }
1.131     www       443: 
1.133     www       444: sub insert_functionplotelements {
                    445:     return '
                    446: <functionplotelements>
                    447: <spline />
                    448: </functionplotelements>';
                    449: }
1.131     www       450: 
1.15      albertel  451: sub insert_numericalresponse {
1.63      albertel  452:     return '
1.15      albertel  453: <numericalresponse answer="">
1.90      www       454: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
                    455: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
1.15      albertel  456:     <textline />
                    457:     <hintgroup>
1.78      www       458:     <startouttext /><endouttext />
1.15      albertel  459:     </hintgroup>
                    460: </numericalresponse>';
                    461: }
                    462: 
1.96      albertel  463: sub insert_customresponse {
1.95      albertel  464:     return '
1.96      albertel  465: <customresponse>
1.95      albertel  466:     <answer type="loncapa/perl">
                    467:     </answer>
                    468:     <textline />
                    469:     <hintgroup>
                    470:     <startouttext /><endouttext />
                    471:     </hintgroup>
1.96      albertel  472: </customresponse>';
1.95      albertel  473: }
                    474: 
1.96      albertel  475: sub insert_customresponse_answer {
1.95      albertel  476:     return '
                    477:     <answer type="loncapa/perl">
                    478:     </answer>
                    479: ';
                    480: }
                    481: 
1.106     albertel  482: sub insert_customhint {
                    483:     return '
                    484:         <customhint>
                    485:             <answer type="loncapa/perl">
                    486:             </answer>
                    487:         </customhint>';
                    488: }
                    489: 
                    490: sub insert_customhint_answer {
                    491:     return '
                    492:             <answer type="loncapa/perl">
                    493:             </answer>
                    494: ';
                    495: }
                    496: 
                    497: sub insert_mathresponse {
                    498:     return '
                    499: <mathresponse>
                    500:     <answer>
                    501:     </answer>
                    502:     <textline />
                    503:     <hintgroup>
                    504:         <startouttext />
                    505:         <endouttext />
                    506:     </hintgroup>
                    507: </mathresponse>';
                    508: }
                    509: 
                    510: sub insert_mathresponse_answer {
                    511:     return '
                    512:     <answer>
                    513:     </answer>
                    514: ';
                    515: }
                    516: 
                    517: sub insert_mathhint {
                    518:     return '
                    519:         <mathhint>
                    520:             <answer>
                    521:             </answer>
                    522:         </mathhint>';
                    523: }
                    524: 
                    525: sub insert_mathhint_answer {
                    526:     return '
                    527:             <answer>
                    528:             </answer>
                    529: ';
                    530: }
                    531: 
1.18      albertel  532: sub insert_stringresponse {
1.63      albertel  533:     return '
1.18      albertel  534: <stringresponse answer="" type="">
                    535:     <textline />
                    536:     <hintgroup>
1.78      www       537:     <startouttext /><endouttext />
1.18      albertel  538:     </hintgroup>
                    539: </stringresponse>';
1.36      albertel  540: }
                    541: 
                    542: sub insert_essayresponse {
1.63      albertel  543:     return '
1.36      albertel  544: <essayresponse>
                    545:     <textfield></textfield>
                    546: </essayresponse>';
1.54      albertel  547: }
                    548: 
                    549: sub insert_imageresponse {
1.63      albertel  550:     return '
1.54      albertel  551: <imageresponse max="1">
                    552:     <foilgroup>
1.89      albertel  553:       <foil>
                    554:       </foil>
1.54      albertel  555:     </foilgroup>
                    556:     <hintgroup>
1.78      www       557:     <startouttext /><endouttext />
1.54      albertel  558:     </hintgroup>
                    559: </imageresponse>';
1.18      albertel  560: }
                    561: 
1.7       albertel  562: sub insert_optionresponse {
1.63      albertel  563:     return '
1.7       albertel  564: <optionresponse max="10">
                    565:     <foilgroup options="">
1.89      albertel  566:       <foil>
                    567:          <startouttext /><endouttext />
                    568:       </foil>
1.7       albertel  569:     </foilgroup>
1.14      albertel  570:     <hintgroup>
1.78      www       571:     <startouttext /><endouttext />
1.14      albertel  572:     </hintgroup>
1.7       albertel  573: </optionresponse>';
1.1       albertel  574: }
                    575: 
1.72      albertel  576: sub insert_organicresponse {
                    577:     return '
                    578: <organicresponse>
                    579:     <textline />
                    580:     <hintgroup>
1.78      www       581:     <startouttext /><endouttext />
1.72      albertel  582:     </hintgroup>
                    583: </organicresponse>';
                    584: }
                    585: 
                    586: sub insert_organicstructure {
                    587:     return '
                    588: <organicstructure />
                    589: ';
                    590: }
                    591: 
1.23      albertel  592: sub insert_radiobuttonresponse {
1.63      albertel  593:     return '
1.23      albertel  594: <radiobuttonresponse max="10">
                    595:     <foilgroup>
1.89      albertel  596:       <foil>
                    597:          <startouttext /><endouttext />
                    598:       </foil>
1.23      albertel  599:     </foilgroup>
                    600:     <hintgroup>
1.78      www       601:     <startouttext /><endouttext />
1.23      albertel  602:     </hintgroup>
                    603: </radiobuttonresponse>';
1.72      albertel  604: }
                    605: 
                    606: sub insert_reactionresponse {
                    607:     return '
                    608: <reactionresponse>
                    609:     <textline />
                    610:     <hintgroup>
1.78      www       611:     <startouttext /><endouttext />
1.72      albertel  612:     </hintgroup>
                    613: </reactionresponse>';
1.43      albertel  614: }
                    615: 
                    616: sub insert_rankresponse {
1.63      albertel  617:     return '
1.43      albertel  618: <rankresponse max="10">
                    619:     <foilgroup options="">
1.89      albertel  620:       <foil>
                    621:          <startouttext /><endouttext />
                    622:       </foil>
1.43      albertel  623:     </foilgroup>
                    624:     <hintgroup>
1.78      www       625:     <startouttext /><endouttext />
1.43      albertel  626:     </hintgroup>
                    627: </rankresponse>';
1.23      albertel  628: }
                    629: 
1.44      albertel  630: sub insert_matchresponse {
1.63      albertel  631:     return '
1.44      albertel  632: <matchresponse max="10">
                    633:     <foilgroup options="">
                    634:       <itemgroup>
                    635:       </itemgroup>
1.89      albertel  636:       <foil>
                    637:          <startouttext /><endouttext />
                    638:       </foil>
1.44      albertel  639:     </foilgroup>
                    640:     <hintgroup>
1.78      www       641:     <startouttext /><endouttext />
1.44      albertel  642:     </hintgroup>
                    643: </matchresponse>';
                    644: }
                    645: 
1.127     www       646: sub insert_startpartmarker { return '<startpartmarker />'; }
                    647: sub insert_endpartmarker { return '<endpartmarker />'; }
                    648: 
1.21      albertel  649: sub insert_displayduedate { return '<displayduedate />'; }
                    650: sub insert_displaytitle   { return '<displaytitle />'; }
1.22      albertel  651: sub insert_hintpart {
1.63      albertel  652:     return '
1.22      albertel  653: <hintpart on="default">
1.90      www       654:     <startouttext/><endouttext />
1.22      albertel  655: </hintpart>';
1.67      albertel  656: }
                    657: 
                    658: sub insert_hintgroup {
                    659:   return '
                    660: <hintgroup>
1.78      www       661:     <startouttext /><endouttext />
1.67      albertel  662: </hintgroup>';
1.22      albertel  663: }
                    664: 
                    665: sub insert_numericalhint {
1.63      albertel  666:     return '
1.22      albertel  667: <numericalhint>
                    668: </numericalhint>';
1.46      albertel  669: }
                    670: 
1.123     www       671: sub insert_reactionhint {
                    672:     return '
                    673: <reactionhint>
                    674: </reactionhint>';
                    675: }
                    676: 
                    677: sub insert_organichint {
                    678:     return '
                    679: <organichint>
                    680: </organichint>';
                    681: }
                    682: 
1.46      albertel  683: sub insert_stringhint {
1.63      albertel  684:     return '
1.46      albertel  685: <stringhint>
                    686: </stringhint>';
                    687: }
                    688: 
                    689: sub insert_formulahint {
1.63      albertel  690:     return '
1.46      albertel  691: <formulahint>
                    692: </formulahint>';
1.37      albertel  693: }
                    694: 
                    695: sub insert_radiobuttonhint {
1.63      albertel  696:     return '
1.37      albertel  697: <radiobuttonhint>
                    698: </radiobuttonhint>';
1.50      albertel  699: }
                    700: 
                    701: sub insert_optionhint {
1.63      albertel  702:     return '
1.50      albertel  703: <optionhint>
                    704: </optionhint>';
1.22      albertel  705: }
1.21      albertel  706: 
1.23      albertel  707: sub insert_startouttext {
1.78      www       708:     return "<startouttext /><endouttext />";
1.23      albertel  709: }
                    710: 
                    711: sub insert_script {
1.78      www       712:     return "\n<script type=\"loncapa/perl\"></script>";
1.23      albertel  713: }
                    714: 
1.98      albertel  715: sub js_change_detection {
                    716:     my $unsaved=&mt("There are unsaved changes");
                    717:     return (<<SCRIPT);
                    718: <script type="text/javascript">
                    719: var clean = true;
                    720: var is_submit = false;
1.99      albertel  721: var still_ask = false;
1.98      albertel  722: function compareForm(event_) {
                    723:         if (!event_ && window.event) {
                    724:           event_ = window.event;
                    725:         }
1.99      albertel  726: 	if ((!is_submit || (is_submit && still_ask)) && !clean) {
                    727: 	    still_ask = false;
                    728: 	    is_submit = false;
1.98      albertel  729:             event_.returnValue = "$unsaved";
                    730:             return "$unsaved";
                    731:         }
                    732: }
                    733: function unClean() {
                    734:      clean=false;
                    735: }
                    736: window.onbeforeunload = compareForm;
                    737: </script>
                    738: SCRIPT
                    739: }
                    740: 
                    741: sub form_change_detection {
                    742:     return ' onsubmit="is_submit=true;" ';
                    743: }
                    744: 
                    745: sub element_change_detection {
                    746:     return ' onchange="unClean();" ';
                    747: }
                    748: 
1.99      albertel  749: sub submit_ask_anyway {
1.113     raeburn   750:     my ($extra_action) = @_;
                    751:     return ' onclick="still_ask=true;'.$extra_action.'" ';
1.99      albertel  752: }
                    753: 
1.134     www       754: sub submit_dont_ask {
                    755:     my ($extra_action) = @_;
                    756:     return ' onclick="is_submit=true;'.$extra_action.'" ';
                    757: }
                    758: 
                    759: 
1.25      albertel  760: sub textarea_sizes {
1.63      albertel  761:     my ($data)=@_;
                    762:     my $count=0;
                    763:     my $maxlength=-1;
                    764:     foreach (split ("\n", $$data)) {
                    765: 	$count+=int(length($_)/79);
                    766: 	$count++;
                    767: 	if (length($_) > $maxlength) { $maxlength = length($_); }
                    768:     }
                    769:     my $rows = $count;
                    770:     my $cols = $maxlength;
                    771:     return ($rows,$cols);
1.25      albertel  772: }
                    773: 
1.32      albertel  774: sub editline {
1.31      matthew   775:     my ($tag,$data,$description,$size)=@_;
1.81      albertel  776:     $data=&HTML::Entities::encode($data,'<>&"');
1.112     albertel  777:     if ($description) { $description=$description."<br />"; }
1.98      albertel  778:     my $change_code = &element_change_detection();
1.31      matthew   779:     my $result = <<"END";
                    780: $description
                    781: <input type="text" name="homework_edit_$Apache::lonxml::curdepth" 
1.98      albertel  782:        value="$data" size="$size" $change_code />
1.31      matthew   783: END
                    784:     return $result;
                    785: }
                    786: 
1.2       albertel  787: sub editfield {
1.82      www       788:     my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22      albertel  789: 
1.63      albertel  790:     my ($rows,$cols)=&textarea_sizes(\$data);
1.128     raeburn   791:     my $textareaclass;
                    792:  
                    793:     if (&Apache::lonhtmlcommon::htmlareabrowser() && $usehtmlarea) { 
1.84      www       794: 	$rows+=7;      # make room for HTMLarea
                    795: 	$minheight+=7; # make room for HTMLarea
1.128     raeburn   796:         $textareaclass = ' class="LC_richDefaultOff"';
1.84      www       797:     }
1.63      albertel  798:     if ($cols > 80) { $cols = 80; }
                    799:     if ($cols < $minwidth ) { $cols = $minwidth; }
                    800:     if ($rows < $minheight) { $rows = $minheight; }
1.112     albertel  801:     if ($description) { $description=$description."<br />"; }
1.128     raeburn   802: 
1.105     albertel  803:     # remove typesetting whitespace from between data and the end tag
                    804:     # to make the edit look prettier
                    805:     $data =~ s/\n?[ \t]*$//;
                    806: 
1.135     bisitz    807:     return $description."\n".'<textarea style="width:99%" rows="'.$rows.
1.63      albertel  808: 	'" cols="'.$cols.'" name="homework_edit_'.
1.82      www       809: 	$Apache::lonxml::curdepth.'" id="homework_edit_'.
1.128     raeburn   810: 	$Apache::lonxml::curdepth.'" '.&element_change_detection().
                    811:         $textareaclass.'>'.
1.85      www       812: 	&HTML::Entities::encode($data,'<>&"').'</textarea>'.
                    813: 	($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
                    814: 			 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2       albertel  815: }
                    816: 
                    817: sub modifiedfield {
1.70      albertel  818:     my ($endtag,$parser) = @_;
1.63      albertel  819:     my $result;
1.92      albertel  820:     $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70      albertel  821:     my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
                    822:     # textareas throw away intial \n 
1.105     albertel  823:     if ($bodytext=~/^\n/) {
                    824: 	$result="\n".$result;
                    825:     }
                    826:     # if there is typesetting whitespace from between the data and the end tag
                    827:     # restore to keep the source looking pretty
                    828:     if ($bodytext =~ /(\n?[ \t]*)$/) {
                    829: 	$result .= $1;
                    830:     }
1.63      albertel  831:     return $result;
1.2       albertel  832: }
                    833: 
1.15      albertel  834: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12      albertel  835: # side-effects, will modify the $token if new values are found
                    836: sub get_new_args {
1.61      albertel  837:     my ($token,$parstack,$safeeval,@args)=@_;
                    838:     my $rebuild=0;
                    839:     foreach my $arg (@args) {
1.63      albertel  840: 	#just want the string that it was set to
                    841: 	my $value=$token->[2]->{$arg};
                    842: 	my $element=&html_element_name($arg);
1.92      albertel  843: 	my $newvalue=$env{"form.$element"};
1.63      albertel  844: 	&Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
                    845: 	if (defined($newvalue) && $value ne $newvalue) {
                    846: 	    if (ref($newvalue) eq 'ARRAY') {
                    847: 		$token->[2]->{$arg}=join(',',@$newvalue);
                    848: 	    } else {
                    849: 		$token->[2]->{$arg}=$newvalue;
                    850: 	    }
1.79      albertel  851: 	    $rebuild=1;
1.111     albertel  852: 	    # add new attributes to the of the attribute seq
                    853: 	    if (!grep { $arg eq $_ } (@{ $token->[3] })) {
                    854: 		push(@{ $token->[3] },$arg);
                    855: 	    }
1.79      albertel  856: 	} elsif (!defined($newvalue) && defined($value)) {
                    857: 	    delete($token->[2]->{$arg});
1.63      albertel  858: 	    $rebuild=1;
1.61      albertel  859: 	}
1.12      albertel  860:     }
1.63      albertel  861:     return $rebuild;
1.12      albertel  862: }
                    863: 
1.15      albertel  864: # looks for /> on start tags
1.12      albertel  865: sub rebuild_tag {
1.63      albertel  866:     my ($token) = @_;
                    867:     my $result;
                    868:     if ($token->[0] eq 'S') {
                    869: 	$result = '<'.$token->[1];
1.109     albertel  870: 	foreach my $attribute (@{ $token->[3] }) {
                    871: 	    my $value = $token->[2]{$attribute};
1.111     albertel  872: 	    next if ($value eq '');
1.109     albertel  873: 	    $value =~s/^\s+|\s+$//g;
                    874: 	    $value =~s/\"//g;
                    875: 	    &Apache::lonxml::debug("setting :$attribute: to  :$value:");
                    876: 	    $result.=' '.$attribute.'="'.$value.'"';
1.63      albertel  877: 	}
                    878: 	if ($token->[4] =~ m:/>$:) {
                    879: 	    $result.=' />';
                    880: 	} else {
                    881: 	    $result.='>';
                    882: 	}
                    883:     } elsif ( $token->[0] eq 'E' ) {
                    884: 	$result = '</'.$token->[1].'>';
1.12      albertel  885:     }
1.63      albertel  886:     return $result;
1.12      albertel  887: }
1.13      albertel  888: 
1.47      matthew   889: sub html_element_name {
                    890:     my ($name) = @_;
1.48      albertel  891:     return $name.'_'.$Apache::lonxml::curdepth;
                    892: }
                    893: 
                    894: sub hidden_arg {
                    895:     my ($name,$token) = @_;
                    896:     my $result;
                    897:     my $arg=$token->[2]{$name};
                    898:     $result='<input name="'.&html_element_name($name).
                    899: 	'" type="hidden" value="'.$arg.'" />';
1.61      albertel  900:     return $result;
                    901: }
                    902: 
                    903: sub checked_arg {
                    904:     my ($description,$name,$list,$token) = @_;
                    905:     my $result;
                    906:     my $optionlist="";
                    907:     my $allselected=$token->[2]{$name};
1.71      www       908:     $result=&mt($description);
1.61      albertel  909:     foreach my $option (@$list) {
                    910: 	my ($value,$text);
                    911: 	if ( ref($option) eq 'ARRAY') {
                    912: 	    $value='value="'.$$option[0].'"';
                    913: 	    $text=$$option[1];
                    914: 	    $option=$$option[0];
                    915: 	} else {
                    916: 	    $text=$option;
                    917: 	    $value='value="'.$option.'"';
                    918: 	}
1.119     raeburn   919: 	$result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
                    920: 	    &html_element_name($name).'"';
1.61      albertel  921: 	foreach my $selected (split(/,/,$allselected)) {
                    922: 	    if ( $selected eq $option ) {
1.119     raeburn   923: 		$result.=' checked="checked" ';
1.61      albertel  924: 		last;
                    925: 	    }
                    926: 	}
1.119     raeburn   927: 	$result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
1.61      albertel  928:     }
1.48      albertel  929:     return $result;
1.47      matthew   930: }
                    931: 
1.13      albertel  932: sub text_arg {
1.63      albertel  933:     my ($description,$name,$token,$size) = @_;
                    934:     my $result;
                    935:     if (!defined $size) { $size=20; }
                    936:     my $arg=$token->[2]{$name};
1.71      www       937:     $result=&mt($description).'&nbsp;<input name="'.&html_element_name($name).
1.98      albertel  938: 	'" type="text" value="'.$arg.'" size="'.$size.'" '.
                    939: 	&element_change_detection().'/>';
1.119     raeburn   940:     return '<span class="LC_nobreak">'.$result.'</span>';
1.13      albertel  941: }
                    942: 
                    943: sub select_arg {
1.39      albertel  944:     my ($description,$name,$list,$token) = @_;
                    945:     my $result;
                    946:     my $optionlist="";
                    947:     my $selected=$token->[2]{$name};
1.121     raeburn   948:     if (ref($list) eq 'ARRAY') {
                    949:         foreach my $option (@{$list}) {
                    950: 	    my ($text,$value);
                    951: 	    if (ref($option) eq 'ARRAY') {
                    952: 	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
                    953: 	        $text=$option->[1];
                    954: 	        $option=$option->[0];
                    955: 	    } else {
                    956: 	        $text=$option;
                    957: 	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
                    958: 	    }
                    959: 	    if ( $selected eq $option ) {
                    960: 	        $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
                    961: 	    } else {
                    962: 	        $optionlist.="<option $value >".&mt($text)."</option>\n";
                    963: 	    }
                    964:         }
1.13      albertel  965:     }
1.120     bisitz    966:     $result.='<span class="LC_nobreak">'.&mt($description).'&nbsp;<select name="'.
1.98      albertel  967: 	&html_element_name($name).'" '.&element_change_detection().' >
1.13      albertel  968:        '.$optionlist.'
1.119     raeburn   969:       </select></span>';
1.39      albertel  970:     return $result;
1.13      albertel  971: }
                    972: 
1.19      albertel  973: sub select_or_text_arg {
1.39      albertel  974:     my ($description,$name,$list,$token,$size) = @_;
                    975:     my $result;
                    976:     my $optionlist="";
                    977:     my $found=0;
                    978:     my $selected=$token->[2]{$name};
1.121     raeburn   979:     if (ref($list) eq 'ARRAY') {
                    980:         foreach my $option (@{$list}) {
                    981: 	    my ($text,$value);
                    982: 	    if (ref($option) eq 'ARRAY') {
                    983: 	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
                    984: 	        $text=$option->[1];
                    985: 	        $option=$option->[0];
                    986: 	    } else {
                    987: 	        $text=$option;
                    988: 	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
                    989: 	    }
                    990: 	    if ( $selected eq $option ) {
                    991: 	        $optionlist.="<option $value selected=\"selected\">$text</option>\n";
                    992: 	        $found=1;
                    993: 	    } else {
                    994: 	        $optionlist.="<option $value>$text</option>\n";
                    995: 	    }
                    996:         }
1.39      albertel  997:     }
1.60      www       998:     $optionlist.="<option value=\"TYPEDINVALUE\"".
1.88      albertel  999:  	((!$found)?' selected="selected"':'').
1.73      www      1000:  	">".&mt('Type-in value')."</option>\n";
1.60      www      1001: #
1.98      albertel 1002:     my $change_code=&element_change_detection();
1.60      www      1003:     my $element=&html_element_name($name);
                   1004:     my $selectelement='select_list_'.$element;
                   1005:     my $typeinelement='type_in_'.$element;
                   1006:     my $typeinvalue=($found?'':$selected);
                   1007: #
                   1008:     my $hiddenvalue='this.form.'.$element.'.value';
                   1009:     my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
                   1010:     my $selectedvalue='this.form.'.$selectelement.
                   1011: 	     '.options['.$selectedindex.'].value';
                   1012:     my $typedinvalue='this.form.'.$typeinelement.'.value';
                   1013:     my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71      www      1014:     $description=&mt($description);
1.60      www      1015: #
                   1016:     return (<<ENDSELECTORTYPE);
1.119     raeburn  1017: <span class="LC_nobreak">
1.60      www      1018: $description
                   1019: &nbsp;<select name="$selectelement"
1.74      albertel 1020: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60      www      1021: $optionlist
                   1022: </select>
                   1023: <input type="text" size="$size" name="$typeinelement"
                   1024:        value="$typeinvalue" 
                   1025: onChange="$hiddenvalue=$typedinvalue;"
                   1026: onFocus="$selectedindex=$selecttypeinindex-1;" />
1.98      albertel 1027: <input type="hidden" name="$element" value="$selected" $change_code />
1.119     raeburn  1028: </span>
1.60      www      1029: ENDSELECTORTYPE
1.19      albertel 1030: }
1.29      matthew  1031: 
1.49      www      1032: #----------------------------------------------------- image coordinates
                   1033: # single image coordinates, x, y 
                   1034: sub entercoords {
1.80      albertel 1035:     my ($idx,$idy,$mode,$width,$height) = @_;
1.49      www      1036:     unless ($Apache::edit::bgimgsrc) { return ''; }
                   1037:     if ($idx) { $idx.='_'; }
                   1038:     if ($idy) { $idy.='_'; }
1.102     www      1039:     my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49      www      1040:     my $form    = 'lonhomework';
                   1041:     my $element;
                   1042:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1043:         $element = &escape("$Apache::lonxml::curdepth");
1.49      www      1044:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1045:         $element = &escape('homework_edit_'.
1.49      www      1046:                                            $Apache::lonxml::curdepth);
                   1047:     }
1.80      albertel 1048:     my $id=$Apache::lonxml::curdepth;
                   1049:     my %data=("imagechoice.$id.type"      =>'point',
                   1050: 	      "imagechoice.$id.formname"  =>$form,
                   1051: 	      "imagechoice.$id.formx"     =>"$idx$element",
                   1052: 	      "imagechoice.$id.formy"     =>"$idy$element",
                   1053: 	      "imagechoice.$id.file"      =>$bgfile,
                   1054: 	      "imagechoice.$id.formcoord" =>$element);
1.49      www      1055:     if ($height) {
1.80      albertel 1056: 	$data{"imagechoice.$id.formheight"}=$height.'_'.
                   1057: 	    $Apache::edit::bgimgsrccurdepth;
1.49      www      1058:     }
                   1059:     if ($width) {
1.80      albertel 1060: 	$data{"imagechoice.$id.formwidth"}=$width.'_'.
                   1061: 	    $Apache::edit::bgimgsrccurdepth;
1.49      www      1062:     }
1.114     raeburn  1063:     &Apache::lonnet::appenv(\%data);
1.80      albertel 1064:     my $text="Click Coordinates";
                   1065:     my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49      www      1066:     return $result;
                   1067: }
                   1068: 
1.77      albertel 1069: # coordinates (x1,y1)-(x2,y2)...
                   1070: # mode can be either box, or polygon
                   1071: sub entercoord {
                   1072:     my ($idx,$mode,$width,$height,$type) = @_;
1.49      www      1073:     unless ($Apache::edit::bgimgsrc) { return ''; }
1.102     www      1074:     my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75      albertel 1075:     my $form    = 'lonhomework';
                   1076:     my $element;
                   1077:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1078:         $element = &escape("$idx\_$Apache::lonxml::curdepth");
1.75      albertel 1079:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1080:         $element = &escape('homework_edit_'.
1.75      albertel 1081:                                            $Apache::lonxml::curdepth);
                   1082:     }
1.76      albertel 1083:     my $id=$Apache::lonxml::curdepth;
1.77      albertel 1084:     my %data=("imagechoice.$id.type"      =>$type,
1.76      albertel 1085: 	      "imagechoice.$id.formname"  =>$form,
                   1086: 	      "imagechoice.$id.file"      =>$bgfile,
                   1087: 	      "imagechoice.$id.formcoord" =>$element);
1.75      albertel 1088:     if ($height) {
1.76      albertel 1089: 	$data{"imagechoice.$id.formheight"}=$height.'_'.
                   1090: 	    $Apache::edit::bgimgsrccurdepth;
1.75      albertel 1091:     }
                   1092:     if ($width) {
1.76      albertel 1093: 	$data{"imagechoice.$id.formwidth"}=$width.'_'.
                   1094: 	    $Apache::edit::bgimgsrccurdepth;
1.75      albertel 1095:     }
1.114     raeburn  1096:     &Apache::lonnet::appenv(\%data);
1.77      albertel 1097:     my $text="Enter Coordinates";
                   1098:     if ($type eq 'polygon') { $text='Create Polygon Data'; }
                   1099:     my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49      www      1100:     return $result;
                   1101: }
1.76      albertel 1102: 
                   1103: sub deletecoorddata {
1.122     raeburn  1104:     &Apache::lonnet::delenv('imagechoice.');
1.76      albertel 1105: }
                   1106: 
1.29      matthew  1107: #----------------------------------------------------- browse
                   1108: sub browse {
                   1109:     # insert a link to call up the filesystem browser (lonindexer)
1.107     banghart 1110:     my ($id, $mode, $titleid, $only) = @_;
1.29      matthew  1111:     my $form    = 'lonhomework';
1.42      matthew  1112:     my $element;
                   1113:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1114:         $element = &escape("$id\_$Apache::lonxml::curdepth");
1.42      matthew  1115:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1116:         $element = &escape('homework_edit_'.
1.68      albertel 1117:                                            $Apache::lonxml::curdepth);	
                   1118:     }
                   1119:     my $titleelement;
                   1120:     if ($titleid) {
1.107     banghart 1121: 	$titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.108     banghart 1122:     } else {
                   1123:         $titleelement=",'$only'";
1.42      matthew  1124:     }
1.29      matthew  1125:     my $result = <<"ENDBUTTON";
1.68      albertel 1126: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29      matthew  1127: ENDBUTTON
                   1128:     return $result;
                   1129: }
                   1130: 
1.30      matthew  1131: #----------------------------------------------------- browse
                   1132: sub search {
                   1133:     # insert a link to call up the filesystem browser (lonindexer)
1.68      albertel 1134:     my ($id, $mode, $titleid) = @_;
1.30      matthew  1135:     my $form    = 'lonhomework';
1.49      www      1136:     my $element;
                   1137:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1138:         $element = &escape("$id\_$Apache::lonxml::curdepth");
1.49      www      1139:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1140:         $element = &escape('homework_edit_'.
1.49      www      1141:                                            $Apache::lonxml::curdepth);
                   1142:     }
1.68      albertel 1143:     my $titleelement;
                   1144:     if ($titleid) {
1.102     www      1145: 	$titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.68      albertel 1146:     }
1.30      matthew  1147:     my $result = <<"ENDBUTTON";
1.68      albertel 1148: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30      matthew  1149: ENDBUTTON
                   1150:     return $result;
                   1151: }
                   1152: 
                   1153: 
1.1       albertel 1154: 1;
                   1155: __END__
1.26      harris41 1156: 
                   1157: 

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