Annotation of loncom/homework/edit.pm, revision 1.134

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # edit mode helpers
1.25      albertel    3: #
1.134   ! www         4: # $Id: edit.pm,v 1.133 2010/11/13 03:22:58 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>
1.133     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: 
1.132     www       422: sub insert_functionplotrule {
1.131     www       423:     return '
1.132     www       424: <functionplotrule />';
1.131     www       425: }
                    426: 
1.133     www       427: sub insert_functionplotruleset {
                    428:     return '
                    429: <functionplotruleset>
                    430: <functionplotrule />
                    431: </functionplotruleset>';
                    432: }
1.131     www       433: 
1.133     www       434: sub insert_functionplotelements {
                    435:     return '
                    436: <functionplotelements>
                    437: <spline />
                    438: </functionplotelements>';
                    439: }
1.131     www       440: 
1.15      albertel  441: sub insert_numericalresponse {
1.63      albertel  442:     return '
1.15      albertel  443: <numericalresponse answer="">
1.90      www       444: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
                    445: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
1.15      albertel  446:     <textline />
                    447:     <hintgroup>
1.78      www       448:     <startouttext /><endouttext />
1.15      albertel  449:     </hintgroup>
                    450: </numericalresponse>';
                    451: }
                    452: 
1.96      albertel  453: sub insert_customresponse {
1.95      albertel  454:     return '
1.96      albertel  455: <customresponse>
1.95      albertel  456:     <answer type="loncapa/perl">
                    457:     </answer>
                    458:     <textline />
                    459:     <hintgroup>
                    460:     <startouttext /><endouttext />
                    461:     </hintgroup>
1.96      albertel  462: </customresponse>';
1.95      albertel  463: }
                    464: 
1.96      albertel  465: sub insert_customresponse_answer {
1.95      albertel  466:     return '
                    467:     <answer type="loncapa/perl">
                    468:     </answer>
                    469: ';
                    470: }
                    471: 
1.106     albertel  472: sub insert_customhint {
                    473:     return '
                    474:         <customhint>
                    475:             <answer type="loncapa/perl">
                    476:             </answer>
                    477:         </customhint>';
                    478: }
                    479: 
                    480: sub insert_customhint_answer {
                    481:     return '
                    482:             <answer type="loncapa/perl">
                    483:             </answer>
                    484: ';
                    485: }
                    486: 
                    487: sub insert_mathresponse {
                    488:     return '
                    489: <mathresponse>
                    490:     <answer>
                    491:     </answer>
                    492:     <textline />
                    493:     <hintgroup>
                    494:         <startouttext />
                    495:         <endouttext />
                    496:     </hintgroup>
                    497: </mathresponse>';
                    498: }
                    499: 
                    500: sub insert_mathresponse_answer {
                    501:     return '
                    502:     <answer>
                    503:     </answer>
                    504: ';
                    505: }
                    506: 
                    507: sub insert_mathhint {
                    508:     return '
                    509:         <mathhint>
                    510:             <answer>
                    511:             </answer>
                    512:         </mathhint>';
                    513: }
                    514: 
                    515: sub insert_mathhint_answer {
                    516:     return '
                    517:             <answer>
                    518:             </answer>
                    519: ';
                    520: }
                    521: 
1.18      albertel  522: sub insert_stringresponse {
1.63      albertel  523:     return '
1.18      albertel  524: <stringresponse answer="" type="">
                    525:     <textline />
                    526:     <hintgroup>
1.78      www       527:     <startouttext /><endouttext />
1.18      albertel  528:     </hintgroup>
                    529: </stringresponse>';
1.36      albertel  530: }
                    531: 
                    532: sub insert_essayresponse {
1.63      albertel  533:     return '
1.36      albertel  534: <essayresponse>
                    535:     <textfield></textfield>
                    536: </essayresponse>';
1.54      albertel  537: }
                    538: 
                    539: sub insert_imageresponse {
1.63      albertel  540:     return '
1.54      albertel  541: <imageresponse max="1">
                    542:     <foilgroup>
1.89      albertel  543:       <foil>
                    544:       </foil>
1.54      albertel  545:     </foilgroup>
                    546:     <hintgroup>
1.78      www       547:     <startouttext /><endouttext />
1.54      albertel  548:     </hintgroup>
                    549: </imageresponse>';
1.18      albertel  550: }
                    551: 
1.7       albertel  552: sub insert_optionresponse {
1.63      albertel  553:     return '
1.7       albertel  554: <optionresponse max="10">
                    555:     <foilgroup options="">
1.89      albertel  556:       <foil>
                    557:          <startouttext /><endouttext />
                    558:       </foil>
1.7       albertel  559:     </foilgroup>
1.14      albertel  560:     <hintgroup>
1.78      www       561:     <startouttext /><endouttext />
1.14      albertel  562:     </hintgroup>
1.7       albertel  563: </optionresponse>';
1.1       albertel  564: }
                    565: 
1.72      albertel  566: sub insert_organicresponse {
                    567:     return '
                    568: <organicresponse>
                    569:     <textline />
                    570:     <hintgroup>
1.78      www       571:     <startouttext /><endouttext />
1.72      albertel  572:     </hintgroup>
                    573: </organicresponse>';
                    574: }
                    575: 
                    576: sub insert_organicstructure {
                    577:     return '
                    578: <organicstructure />
                    579: ';
                    580: }
                    581: 
1.23      albertel  582: sub insert_radiobuttonresponse {
1.63      albertel  583:     return '
1.23      albertel  584: <radiobuttonresponse max="10">
                    585:     <foilgroup>
1.89      albertel  586:       <foil>
                    587:          <startouttext /><endouttext />
                    588:       </foil>
1.23      albertel  589:     </foilgroup>
                    590:     <hintgroup>
1.78      www       591:     <startouttext /><endouttext />
1.23      albertel  592:     </hintgroup>
                    593: </radiobuttonresponse>';
1.72      albertel  594: }
                    595: 
                    596: sub insert_reactionresponse {
                    597:     return '
                    598: <reactionresponse>
                    599:     <textline />
                    600:     <hintgroup>
1.78      www       601:     <startouttext /><endouttext />
1.72      albertel  602:     </hintgroup>
                    603: </reactionresponse>';
1.43      albertel  604: }
                    605: 
                    606: sub insert_rankresponse {
1.63      albertel  607:     return '
1.43      albertel  608: <rankresponse max="10">
                    609:     <foilgroup options="">
1.89      albertel  610:       <foil>
                    611:          <startouttext /><endouttext />
                    612:       </foil>
1.43      albertel  613:     </foilgroup>
                    614:     <hintgroup>
1.78      www       615:     <startouttext /><endouttext />
1.43      albertel  616:     </hintgroup>
                    617: </rankresponse>';
1.23      albertel  618: }
                    619: 
1.44      albertel  620: sub insert_matchresponse {
1.63      albertel  621:     return '
1.44      albertel  622: <matchresponse max="10">
                    623:     <foilgroup options="">
                    624:       <itemgroup>
                    625:       </itemgroup>
1.89      albertel  626:       <foil>
                    627:          <startouttext /><endouttext />
                    628:       </foil>
1.44      albertel  629:     </foilgroup>
                    630:     <hintgroup>
1.78      www       631:     <startouttext /><endouttext />
1.44      albertel  632:     </hintgroup>
                    633: </matchresponse>';
                    634: }
                    635: 
1.127     www       636: sub insert_startpartmarker { return '<startpartmarker />'; }
                    637: sub insert_endpartmarker { return '<endpartmarker />'; }
                    638: 
1.21      albertel  639: sub insert_displayduedate { return '<displayduedate />'; }
                    640: sub insert_displaytitle   { return '<displaytitle />'; }
1.22      albertel  641: sub insert_hintpart {
1.63      albertel  642:     return '
1.22      albertel  643: <hintpart on="default">
1.90      www       644:     <startouttext/><endouttext />
1.22      albertel  645: </hintpart>';
1.67      albertel  646: }
                    647: 
                    648: sub insert_hintgroup {
                    649:   return '
                    650: <hintgroup>
1.78      www       651:     <startouttext /><endouttext />
1.67      albertel  652: </hintgroup>';
1.22      albertel  653: }
                    654: 
                    655: sub insert_numericalhint {
1.63      albertel  656:     return '
1.22      albertel  657: <numericalhint>
                    658: </numericalhint>';
1.46      albertel  659: }
                    660: 
1.123     www       661: sub insert_reactionhint {
                    662:     return '
                    663: <reactionhint>
                    664: </reactionhint>';
                    665: }
                    666: 
                    667: sub insert_organichint {
                    668:     return '
                    669: <organichint>
                    670: </organichint>';
                    671: }
                    672: 
1.46      albertel  673: sub insert_stringhint {
1.63      albertel  674:     return '
1.46      albertel  675: <stringhint>
                    676: </stringhint>';
                    677: }
                    678: 
                    679: sub insert_formulahint {
1.63      albertel  680:     return '
1.46      albertel  681: <formulahint>
                    682: </formulahint>';
1.37      albertel  683: }
                    684: 
                    685: sub insert_radiobuttonhint {
1.63      albertel  686:     return '
1.37      albertel  687: <radiobuttonhint>
                    688: </radiobuttonhint>';
1.50      albertel  689: }
                    690: 
                    691: sub insert_optionhint {
1.63      albertel  692:     return '
1.50      albertel  693: <optionhint>
                    694: </optionhint>';
1.22      albertel  695: }
1.21      albertel  696: 
1.23      albertel  697: sub insert_startouttext {
1.78      www       698:     return "<startouttext /><endouttext />";
1.23      albertel  699: }
                    700: 
                    701: sub insert_script {
1.78      www       702:     return "\n<script type=\"loncapa/perl\"></script>";
1.23      albertel  703: }
                    704: 
1.98      albertel  705: sub js_change_detection {
                    706:     my $unsaved=&mt("There are unsaved changes");
                    707:     return (<<SCRIPT);
                    708: <script type="text/javascript">
                    709: var clean = true;
                    710: var is_submit = false;
1.99      albertel  711: var still_ask = false;
1.98      albertel  712: function compareForm(event_) {
                    713:         if (!event_ && window.event) {
                    714:           event_ = window.event;
                    715:         }
1.99      albertel  716: 	if ((!is_submit || (is_submit && still_ask)) && !clean) {
                    717: 	    still_ask = false;
                    718: 	    is_submit = false;
1.98      albertel  719:             event_.returnValue = "$unsaved";
                    720:             return "$unsaved";
                    721:         }
                    722: }
                    723: function unClean() {
                    724:      clean=false;
                    725: }
                    726: window.onbeforeunload = compareForm;
                    727: </script>
                    728: SCRIPT
                    729: }
                    730: 
                    731: sub form_change_detection {
                    732:     return ' onsubmit="is_submit=true;" ';
                    733: }
                    734: 
                    735: sub element_change_detection {
                    736:     return ' onchange="unClean();" ';
                    737: }
                    738: 
1.99      albertel  739: sub submit_ask_anyway {
1.113     raeburn   740:     my ($extra_action) = @_;
                    741:     return ' onclick="still_ask=true;'.$extra_action.'" ';
1.99      albertel  742: }
                    743: 
1.134   ! www       744: sub submit_dont_ask {
        !           745:     my ($extra_action) = @_;
        !           746:     return ' onclick="is_submit=true;'.$extra_action.'" ';
        !           747: }
        !           748: 
        !           749: 
1.25      albertel  750: sub textarea_sizes {
1.63      albertel  751:     my ($data)=@_;
                    752:     my $count=0;
                    753:     my $maxlength=-1;
                    754:     foreach (split ("\n", $$data)) {
                    755: 	$count+=int(length($_)/79);
                    756: 	$count++;
                    757: 	if (length($_) > $maxlength) { $maxlength = length($_); }
                    758:     }
                    759:     my $rows = $count;
                    760:     my $cols = $maxlength;
                    761:     return ($rows,$cols);
1.25      albertel  762: }
                    763: 
1.32      albertel  764: sub editline {
1.31      matthew   765:     my ($tag,$data,$description,$size)=@_;
1.81      albertel  766:     $data=&HTML::Entities::encode($data,'<>&"');
1.112     albertel  767:     if ($description) { $description=$description."<br />"; }
1.98      albertel  768:     my $change_code = &element_change_detection();
1.31      matthew   769:     my $result = <<"END";
                    770: $description
                    771: <input type="text" name="homework_edit_$Apache::lonxml::curdepth" 
1.98      albertel  772:        value="$data" size="$size" $change_code />
1.31      matthew   773: END
                    774:     return $result;
                    775: }
                    776: 
1.2       albertel  777: sub editfield {
1.82      www       778:     my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22      albertel  779: 
1.63      albertel  780:     my ($rows,$cols)=&textarea_sizes(\$data);
1.128     raeburn   781:     my $textareaclass;
                    782:  
                    783:     if (&Apache::lonhtmlcommon::htmlareabrowser() && $usehtmlarea) { 
1.84      www       784: 	$rows+=7;      # make room for HTMLarea
                    785: 	$minheight+=7; # make room for HTMLarea
1.128     raeburn   786:         $textareaclass = ' class="LC_richDefaultOff"';
1.84      www       787:     }
1.63      albertel  788:     if ($cols > 80) { $cols = 80; }
                    789:     if ($cols < $minwidth ) { $cols = $minwidth; }
                    790:     if ($rows < $minheight) { $rows = $minheight; }
1.112     albertel  791:     if ($description) { $description=$description."<br />"; }
1.128     raeburn   792: 
1.105     albertel  793:     # remove typesetting whitespace from between data and the end tag
                    794:     # to make the edit look prettier
                    795:     $data =~ s/\n?[ \t]*$//;
                    796: 
1.103     albertel  797:     return $description."\n".'<textarea style="width:100%" rows="'.$rows.
1.63      albertel  798: 	'" cols="'.$cols.'" name="homework_edit_'.
1.82      www       799: 	$Apache::lonxml::curdepth.'" id="homework_edit_'.
1.128     raeburn   800: 	$Apache::lonxml::curdepth.'" '.&element_change_detection().
                    801:         $textareaclass.'>'.
1.85      www       802: 	&HTML::Entities::encode($data,'<>&"').'</textarea>'.
                    803: 	($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
                    804: 			 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2       albertel  805: }
                    806: 
                    807: sub modifiedfield {
1.70      albertel  808:     my ($endtag,$parser) = @_;
1.63      albertel  809:     my $result;
1.92      albertel  810:     $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70      albertel  811:     my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
                    812:     # textareas throw away intial \n 
1.105     albertel  813:     if ($bodytext=~/^\n/) {
                    814: 	$result="\n".$result;
                    815:     }
                    816:     # if there is typesetting whitespace from between the data and the end tag
                    817:     # restore to keep the source looking pretty
                    818:     if ($bodytext =~ /(\n?[ \t]*)$/) {
                    819: 	$result .= $1;
                    820:     }
1.63      albertel  821:     return $result;
1.2       albertel  822: }
                    823: 
1.15      albertel  824: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12      albertel  825: # side-effects, will modify the $token if new values are found
                    826: sub get_new_args {
1.61      albertel  827:     my ($token,$parstack,$safeeval,@args)=@_;
                    828:     my $rebuild=0;
                    829:     foreach my $arg (@args) {
1.63      albertel  830: 	#just want the string that it was set to
                    831: 	my $value=$token->[2]->{$arg};
                    832: 	my $element=&html_element_name($arg);
1.92      albertel  833: 	my $newvalue=$env{"form.$element"};
1.63      albertel  834: 	&Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
                    835: 	if (defined($newvalue) && $value ne $newvalue) {
                    836: 	    if (ref($newvalue) eq 'ARRAY') {
                    837: 		$token->[2]->{$arg}=join(',',@$newvalue);
                    838: 	    } else {
                    839: 		$token->[2]->{$arg}=$newvalue;
                    840: 	    }
1.79      albertel  841: 	    $rebuild=1;
1.111     albertel  842: 	    # add new attributes to the of the attribute seq
                    843: 	    if (!grep { $arg eq $_ } (@{ $token->[3] })) {
                    844: 		push(@{ $token->[3] },$arg);
                    845: 	    }
1.79      albertel  846: 	} elsif (!defined($newvalue) && defined($value)) {
                    847: 	    delete($token->[2]->{$arg});
1.63      albertel  848: 	    $rebuild=1;
1.61      albertel  849: 	}
1.12      albertel  850:     }
1.63      albertel  851:     return $rebuild;
1.12      albertel  852: }
                    853: 
1.15      albertel  854: # looks for /> on start tags
1.12      albertel  855: sub rebuild_tag {
1.63      albertel  856:     my ($token) = @_;
                    857:     my $result;
                    858:     if ($token->[0] eq 'S') {
                    859: 	$result = '<'.$token->[1];
1.109     albertel  860: 	foreach my $attribute (@{ $token->[3] }) {
                    861: 	    my $value = $token->[2]{$attribute};
1.111     albertel  862: 	    next if ($value eq '');
1.109     albertel  863: 	    $value =~s/^\s+|\s+$//g;
                    864: 	    $value =~s/\"//g;
                    865: 	    &Apache::lonxml::debug("setting :$attribute: to  :$value:");
                    866: 	    $result.=' '.$attribute.'="'.$value.'"';
1.63      albertel  867: 	}
                    868: 	if ($token->[4] =~ m:/>$:) {
                    869: 	    $result.=' />';
                    870: 	} else {
                    871: 	    $result.='>';
                    872: 	}
                    873:     } elsif ( $token->[0] eq 'E' ) {
                    874: 	$result = '</'.$token->[1].'>';
1.12      albertel  875:     }
1.63      albertel  876:     return $result;
1.12      albertel  877: }
1.13      albertel  878: 
1.47      matthew   879: sub html_element_name {
                    880:     my ($name) = @_;
1.48      albertel  881:     return $name.'_'.$Apache::lonxml::curdepth;
                    882: }
                    883: 
                    884: sub hidden_arg {
                    885:     my ($name,$token) = @_;
                    886:     my $result;
                    887:     my $arg=$token->[2]{$name};
                    888:     $result='<input name="'.&html_element_name($name).
                    889: 	'" type="hidden" value="'.$arg.'" />';
1.61      albertel  890:     return $result;
                    891: }
                    892: 
                    893: sub checked_arg {
                    894:     my ($description,$name,$list,$token) = @_;
                    895:     my $result;
                    896:     my $optionlist="";
                    897:     my $allselected=$token->[2]{$name};
1.71      www       898:     $result=&mt($description);
1.61      albertel  899:     foreach my $option (@$list) {
                    900: 	my ($value,$text);
                    901: 	if ( ref($option) eq 'ARRAY') {
                    902: 	    $value='value="'.$$option[0].'"';
                    903: 	    $text=$$option[1];
                    904: 	    $option=$$option[0];
                    905: 	} else {
                    906: 	    $text=$option;
                    907: 	    $value='value="'.$option.'"';
                    908: 	}
1.119     raeburn   909: 	$result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
                    910: 	    &html_element_name($name).'"';
1.61      albertel  911: 	foreach my $selected (split(/,/,$allselected)) {
                    912: 	    if ( $selected eq $option ) {
1.119     raeburn   913: 		$result.=' checked="checked" ';
1.61      albertel  914: 		last;
                    915: 	    }
                    916: 	}
1.119     raeburn   917: 	$result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
1.61      albertel  918:     }
1.48      albertel  919:     return $result;
1.47      matthew   920: }
                    921: 
1.13      albertel  922: sub text_arg {
1.63      albertel  923:     my ($description,$name,$token,$size) = @_;
                    924:     my $result;
                    925:     if (!defined $size) { $size=20; }
                    926:     my $arg=$token->[2]{$name};
1.71      www       927:     $result=&mt($description).'&nbsp;<input name="'.&html_element_name($name).
1.98      albertel  928: 	'" type="text" value="'.$arg.'" size="'.$size.'" '.
                    929: 	&element_change_detection().'/>';
1.119     raeburn   930:     return '<span class="LC_nobreak">'.$result.'</span>';
1.13      albertel  931: }
                    932: 
                    933: sub select_arg {
1.39      albertel  934:     my ($description,$name,$list,$token) = @_;
                    935:     my $result;
                    936:     my $optionlist="";
                    937:     my $selected=$token->[2]{$name};
1.121     raeburn   938:     if (ref($list) eq 'ARRAY') {
                    939:         foreach my $option (@{$list}) {
                    940: 	    my ($text,$value);
                    941: 	    if (ref($option) eq 'ARRAY') {
                    942: 	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
                    943: 	        $text=$option->[1];
                    944: 	        $option=$option->[0];
                    945: 	    } else {
                    946: 	        $text=$option;
                    947: 	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
                    948: 	    }
                    949: 	    if ( $selected eq $option ) {
                    950: 	        $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
                    951: 	    } else {
                    952: 	        $optionlist.="<option $value >".&mt($text)."</option>\n";
                    953: 	    }
                    954:         }
1.13      albertel  955:     }
1.120     bisitz    956:     $result.='<span class="LC_nobreak">'.&mt($description).'&nbsp;<select name="'.
1.98      albertel  957: 	&html_element_name($name).'" '.&element_change_detection().' >
1.13      albertel  958:        '.$optionlist.'
1.119     raeburn   959:       </select></span>';
1.39      albertel  960:     return $result;
1.13      albertel  961: }
                    962: 
1.19      albertel  963: sub select_or_text_arg {
1.39      albertel  964:     my ($description,$name,$list,$token,$size) = @_;
                    965:     my $result;
                    966:     my $optionlist="";
                    967:     my $found=0;
                    968:     my $selected=$token->[2]{$name};
1.121     raeburn   969:     if (ref($list) eq 'ARRAY') {
                    970:         foreach my $option (@{$list}) {
                    971: 	    my ($text,$value);
                    972: 	    if (ref($option) eq 'ARRAY') {
                    973: 	        $value='value="'.&HTML::Entities::encode($option->[0]).'"';
                    974: 	        $text=$option->[1];
                    975: 	        $option=$option->[0];
                    976: 	    } else {
                    977: 	        $text=$option;
                    978: 	        $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
                    979: 	    }
                    980: 	    if ( $selected eq $option ) {
                    981: 	        $optionlist.="<option $value selected=\"selected\">$text</option>\n";
                    982: 	        $found=1;
                    983: 	    } else {
                    984: 	        $optionlist.="<option $value>$text</option>\n";
                    985: 	    }
                    986:         }
1.39      albertel  987:     }
1.60      www       988:     $optionlist.="<option value=\"TYPEDINVALUE\"".
1.88      albertel  989:  	((!$found)?' selected="selected"':'').
1.73      www       990:  	">".&mt('Type-in value')."</option>\n";
1.60      www       991: #
1.98      albertel  992:     my $change_code=&element_change_detection();
1.60      www       993:     my $element=&html_element_name($name);
                    994:     my $selectelement='select_list_'.$element;
                    995:     my $typeinelement='type_in_'.$element;
                    996:     my $typeinvalue=($found?'':$selected);
                    997: #
                    998:     my $hiddenvalue='this.form.'.$element.'.value';
                    999:     my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
                   1000:     my $selectedvalue='this.form.'.$selectelement.
                   1001: 	     '.options['.$selectedindex.'].value';
                   1002:     my $typedinvalue='this.form.'.$typeinelement.'.value';
                   1003:     my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71      www      1004:     $description=&mt($description);
1.60      www      1005: #
                   1006:     return (<<ENDSELECTORTYPE);
1.119     raeburn  1007: <span class="LC_nobreak">
1.60      www      1008: $description
                   1009: &nbsp;<select name="$selectelement"
1.74      albertel 1010: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60      www      1011: $optionlist
                   1012: </select>
                   1013: <input type="text" size="$size" name="$typeinelement"
                   1014:        value="$typeinvalue" 
                   1015: onChange="$hiddenvalue=$typedinvalue;"
                   1016: onFocus="$selectedindex=$selecttypeinindex-1;" />
1.98      albertel 1017: <input type="hidden" name="$element" value="$selected" $change_code />
1.119     raeburn  1018: </span>
1.60      www      1019: ENDSELECTORTYPE
1.19      albertel 1020: }
1.29      matthew  1021: 
1.49      www      1022: #----------------------------------------------------- image coordinates
                   1023: # single image coordinates, x, y 
                   1024: sub entercoords {
1.80      albertel 1025:     my ($idx,$idy,$mode,$width,$height) = @_;
1.49      www      1026:     unless ($Apache::edit::bgimgsrc) { return ''; }
                   1027:     if ($idx) { $idx.='_'; }
                   1028:     if ($idy) { $idy.='_'; }
1.102     www      1029:     my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49      www      1030:     my $form    = 'lonhomework';
                   1031:     my $element;
                   1032:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1033:         $element = &escape("$Apache::lonxml::curdepth");
1.49      www      1034:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1035:         $element = &escape('homework_edit_'.
1.49      www      1036:                                            $Apache::lonxml::curdepth);
                   1037:     }
1.80      albertel 1038:     my $id=$Apache::lonxml::curdepth;
                   1039:     my %data=("imagechoice.$id.type"      =>'point',
                   1040: 	      "imagechoice.$id.formname"  =>$form,
                   1041: 	      "imagechoice.$id.formx"     =>"$idx$element",
                   1042: 	      "imagechoice.$id.formy"     =>"$idy$element",
                   1043: 	      "imagechoice.$id.file"      =>$bgfile,
                   1044: 	      "imagechoice.$id.formcoord" =>$element);
1.49      www      1045:     if ($height) {
1.80      albertel 1046: 	$data{"imagechoice.$id.formheight"}=$height.'_'.
                   1047: 	    $Apache::edit::bgimgsrccurdepth;
1.49      www      1048:     }
                   1049:     if ($width) {
1.80      albertel 1050: 	$data{"imagechoice.$id.formwidth"}=$width.'_'.
                   1051: 	    $Apache::edit::bgimgsrccurdepth;
1.49      www      1052:     }
1.114     raeburn  1053:     &Apache::lonnet::appenv(\%data);
1.80      albertel 1054:     my $text="Click Coordinates";
                   1055:     my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49      www      1056:     return $result;
                   1057: }
                   1058: 
1.77      albertel 1059: # coordinates (x1,y1)-(x2,y2)...
                   1060: # mode can be either box, or polygon
                   1061: sub entercoord {
                   1062:     my ($idx,$mode,$width,$height,$type) = @_;
1.49      www      1063:     unless ($Apache::edit::bgimgsrc) { return ''; }
1.102     www      1064:     my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75      albertel 1065:     my $form    = 'lonhomework';
                   1066:     my $element;
                   1067:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1068:         $element = &escape("$idx\_$Apache::lonxml::curdepth");
1.75      albertel 1069:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1070:         $element = &escape('homework_edit_'.
1.75      albertel 1071:                                            $Apache::lonxml::curdepth);
                   1072:     }
1.76      albertel 1073:     my $id=$Apache::lonxml::curdepth;
1.77      albertel 1074:     my %data=("imagechoice.$id.type"      =>$type,
1.76      albertel 1075: 	      "imagechoice.$id.formname"  =>$form,
                   1076: 	      "imagechoice.$id.file"      =>$bgfile,
                   1077: 	      "imagechoice.$id.formcoord" =>$element);
1.75      albertel 1078:     if ($height) {
1.76      albertel 1079: 	$data{"imagechoice.$id.formheight"}=$height.'_'.
                   1080: 	    $Apache::edit::bgimgsrccurdepth;
1.75      albertel 1081:     }
                   1082:     if ($width) {
1.76      albertel 1083: 	$data{"imagechoice.$id.formwidth"}=$width.'_'.
                   1084: 	    $Apache::edit::bgimgsrccurdepth;
1.75      albertel 1085:     }
1.114     raeburn  1086:     &Apache::lonnet::appenv(\%data);
1.77      albertel 1087:     my $text="Enter Coordinates";
                   1088:     if ($type eq 'polygon') { $text='Create Polygon Data'; }
                   1089:     my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49      www      1090:     return $result;
                   1091: }
1.76      albertel 1092: 
                   1093: sub deletecoorddata {
1.122     raeburn  1094:     &Apache::lonnet::delenv('imagechoice.');
1.76      albertel 1095: }
                   1096: 
1.29      matthew  1097: #----------------------------------------------------- browse
                   1098: sub browse {
                   1099:     # insert a link to call up the filesystem browser (lonindexer)
1.107     banghart 1100:     my ($id, $mode, $titleid, $only) = @_;
1.29      matthew  1101:     my $form    = 'lonhomework';
1.42      matthew  1102:     my $element;
                   1103:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1104:         $element = &escape("$id\_$Apache::lonxml::curdepth");
1.42      matthew  1105:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1106:         $element = &escape('homework_edit_'.
1.68      albertel 1107:                                            $Apache::lonxml::curdepth);	
                   1108:     }
                   1109:     my $titleelement;
                   1110:     if ($titleid) {
1.107     banghart 1111: 	$titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.108     banghart 1112:     } else {
                   1113:         $titleelement=",'$only'";
1.42      matthew  1114:     }
1.29      matthew  1115:     my $result = <<"ENDBUTTON";
1.68      albertel 1116: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29      matthew  1117: ENDBUTTON
                   1118:     return $result;
                   1119: }
                   1120: 
1.30      matthew  1121: #----------------------------------------------------- browse
                   1122: sub search {
                   1123:     # insert a link to call up the filesystem browser (lonindexer)
1.68      albertel 1124:     my ($id, $mode, $titleid) = @_;
1.30      matthew  1125:     my $form    = 'lonhomework';
1.49      www      1126:     my $element;
                   1127:     if (! defined($mode) || $mode eq 'attribute') {
1.102     www      1128:         $element = &escape("$id\_$Apache::lonxml::curdepth");
1.49      www      1129:     } elsif ($mode eq 'textnode') {  # for data between <tag> ... </tag>
1.102     www      1130:         $element = &escape('homework_edit_'.
1.49      www      1131:                                            $Apache::lonxml::curdepth);
                   1132:     }
1.68      albertel 1133:     my $titleelement;
                   1134:     if ($titleid) {
1.102     www      1135: 	$titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.68      albertel 1136:     }
1.30      matthew  1137:     my $result = <<"ENDBUTTON";
1.68      albertel 1138: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30      matthew  1139: ENDBUTTON
                   1140:     return $result;
                   1141: }
                   1142: 
                   1143: 
1.1       albertel 1144: 1;
                   1145: __END__
1.26      harris41 1146: 
                   1147: 

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