Annotation of loncom/homework/edit.pm, revision 1.63
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
1.25 albertel 3: #
1.63 ! albertel 4: # $Id: edit.pm,v 1.62 2003/09/08 21:17:54 albertel 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: #
1.1 albertel 28: # 3/20 Guy
1.27 matthew 29: # 01/10/02 Matthew
1.29 matthew 30: # 03/06/02 Matthew
1.1 albertel 31: package Apache::edit;
32:
33: use strict;
1.32 albertel 34: use Apache::lonnet();
35: use HTML::Entities();
1.1 albertel 36:
1.10 albertel 37: # Global Vars
38: # default list of colors to use in editing
39: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
40: # depth of nesting of edit
41: $Apache::edit::colordepth=0;
1.38 www 42: @Apache::edit::inserttag=();
1.49 www 43: # image-type responses: active background image and curdepth at definition
44: $Apache::edit::bgimgsrc='';
45: $Apache::edit::bgimgsrccurdepth='';
1.10 albertel 46:
47: sub initialize_edit {
1.63 ! albertel 48: $Apache::edit::colordepth=0;
! 49: @Apache::edit::inserttag=();
1.10 albertel 50: }
51:
1.1 albertel 52: sub tag_start {
1.63 ! albertel 53: my ($target,$token,$description) = @_;
! 54: my $result='';
! 55: if ($target eq "edit") {
! 56: my $tag=$token->[1];
! 57: if (!$description) {
! 58: $description=&Apache::lonxml::description($token);
! 59: if (!$description) { $description="<$tag>"; }
! 60: }
! 61: $result.= &start_table($token)."<tr><td>$description</td>
! 62: <td>Delete".
! 63: &deletelist($target,$token)
! 64: ."</td>
! 65: <td>".
! 66: &insertlist($target,$token);
1.27 matthew 67: #<td>".
1.22 albertel 68: # &movebuttons($target,$token).
69: # "</tr><tr><td colspan=\"3\">\n";
1.63 ! albertel 70: my @help;# = Apache::lonxml::helpinfo($token);
! 71: if ($help[0]) {
! 72: $result .= '<td align="right" valign="top">' .
! 73: Apache::loncommon::help_open_topic(@help) .
! 74: '</td>';
! 75: } else { $result .= "<td> </td>"; }
! 76: $result .= &end_row().&start_spanning_row();
! 77: }
! 78: return $result;
1.1 albertel 79: }
80:
81: sub tag_end {
1.63 ! albertel 82: my ($target,$token,$description) = @_;
! 83: my $result='';
! 84: if ($target eq 'edit') {
! 85: $result.="</td></tr>".&end_table()."\n";
! 86: }
! 87: return $result;
1.4 albertel 88: }
1.1 albertel 89:
1.10 albertel 90: sub start_table {
1.63 ! albertel 91: my ($token)=@_;
! 92: my $tag = $token->[1];
! 93: my $tagnum;
! 94: foreach my $namespace (reverse @Apache::lonxml::namespace) {
! 95: my $testtag=$namespace.'::'.$tag;
! 96: $tagnum=$Apache::lonxml::insertlist{"$testtag.num"};
! 97: if (defined($tagnum)) { last; }
! 98: }
! 99: if (!defined ($tagnum)) {$tagnum=$Apache::lonxml::insertlist{"$tag.num"};}
! 100: my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
! 101: if (!defined($color)) {
! 102: $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
! 103: }
! 104: $Apache::edit::colordepth++;
! 105: push(@Apache::edit::inserttag,$token->[1]);
! 106: my $result='<div align="right">';
! 107: $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="5" cellpadding="3">';
! 108: return $result;
1.10 albertel 109: }
110:
111: sub end_table {
1.63 ! albertel 112: $Apache::edit::colordepth--;
! 113: my $result='</table></div>';
! 114: $result.="<table><tr><td>";
! 115:
! 116: my ($tagname,$closingtag);
! 117: if (defined($Apache::edit::inserttag[-2])) {
! 118: $tagname=$Apache::edit::inserttag[-2];
! 119: } else {$tagname='problem';}
! 120: if (defined($Apache::edit::inserttag[-1])) {
! 121: $closingtag=$Apache::edit::inserttag[-1];
! 122: }
! 123: $result.=&innerinsertlist('edit',$tagname,$closingtag).
! 124: "</td></tr></table>";
! 125: pop(@Apache::edit::inserttag);
! 126: return $result;
1.10 albertel 127: }
128:
1.58 bowersj2 129: sub start_spanning_row { return '<tr><td colspan="4" bgcolor="#DDDDDD">';}
1.41 www 130: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
1.27 matthew 131: sub end_row { return '</td></tr>'; }
132:
1.22 albertel 133: sub movebuttons {
1.63 ! albertel 134: my ($target,$token) = @_;
! 135: my $result='<input type="submit" name="moveup.'.
! 136: $Apache::lonxml::curdepth.'" value="Move Up" />';
! 137: $result.='<input type="submit" name="movedown.'.
! 138: $Apache::lonxml::curdepth.'" value="Move Down" />';
! 139: return $result;
1.22 albertel 140: }
141:
1.8 albertel 142: sub deletelist {
1.63 ! albertel 143: my ($target,$token) = @_;
! 144: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14 albertel 145: <option></option>
146: <option>Yes</option>
1.8 albertel 147: </select>";
1.63 ! albertel 148: return $result;
1.8 albertel 149: }
150:
1.14 albertel 151: sub handle_delete {
1.63 ! albertel 152: if (!$ENV{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
! 153: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
! 154: my $result=0;
! 155: if ($space) {
! 156: my $sub1="$space\:\:delete_$token->[1]";
! 157: {
! 158: no strict 'refs';
! 159: if (defined &$sub1) {
! 160: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
! 161: }
! 162: }
! 163: }
! 164: if (!$result) {
! 165: my $endtag='/'.$token->[1];
! 166: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
! 167: $$parser['-1']->get_token();
! 168: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
! 169: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
! 170: }
! 171: return 1;
1.14 albertel 172: }
173:
1.7 albertel 174: sub get_insert_list {
1.63 ! albertel 175: my ($tagname) = @_;
! 176: my $result='';
! 177: my @tagnums= ();
! 178: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
! 179: if ($Apache::lonxml::insertlist{"$tagname.which"}) {
! 180: push (@tagnums, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
! 181: }
! 182: foreach my $namespace (@Apache::lonxml::namespace) {
! 183: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
! 184: push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
! 185: }
! 186: }
! 187: if (@tagnums) {
! 188: my %options;
! 189: foreach my $tagnum (@tagnums) {
! 190: my $descrip=$Apache::lonxml::insertlist{"$tagnum.description"};
! 191: $options{$descrip} ="<option value=\"$tagnum\">".
! 192: $descrip."</option>\n";
! 193: }
! 194: foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
! 195: if ($result) { $result='<option selected="on"></option>'.$result; }
! 196: }
! 197: return $result;
1.5 albertel 198: }
199:
1.4 albertel 200: sub insertlist {
1.63 ! albertel 201: my ($target,$token) = @_;
! 202: return &innerinsertlist($target,$token->[1]);
1.38 www 203: }
204:
205: sub innerinsertlist {
1.63 ! albertel 206: my ($target,$tagname,$closingtag) = @_;
! 207: my $result;
! 208: my $after='';
! 209: if ($closingtag) {
! 210: $after='_after_'.$closingtag;
! 211: }
! 212: if ($target eq 'edit') {
! 213: my $optionlist= &get_insert_list($tagname);
! 214: if ($optionlist) {
! 215: $result = "Insert:
! 216: <select name=\"insert$after\_$Apache::lonxml::curdepth\">
! 217: $optionlist
! 218: </select>"
! 219: } else {
! 220: $result=" ";
! 221: }
1.6 albertel 222: }
1.63 ! albertel 223: return $result;
1.6 albertel 224: }
225:
1.7 albertel 226: sub handle_insert {
1.63 ! albertel 227: if ($ENV{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
! 228: my $result;
! 229: my $tagnum = $ENV{"form.insert_$Apache::lonxml::curdepth"};
! 230: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
! 231: if ($func eq 'default') {
! 232: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
! 233: my $namespace;
! 234: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
! 235: $result.="\n<$newtag>\n</$newtag>";
1.15 albertel 236: } else {
1.63 ! albertel 237: if (defined(&$func)) {
! 238: {
! 239: no strict 'refs';
! 240: $result.=&$func();
! 241: }
! 242: } else {
! 243: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
! 244: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined.");
! 245: }
1.38 www 246: }
1.63 ! albertel 247: return $result;
1.38 www 248: }
249:
250: sub handle_insertafter {
1.63 ! albertel 251: my $tagname=shift;
! 252: if ($ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '')
! 253: { return ''; }
! 254: my $result;
! 255: my $tagnum =$ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
! 256: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
! 257: if ($func eq 'default') {
! 258: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
! 259: my $namespace;
! 260: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
! 261: $result.="\n<$newtag>\n</$newtag>";
1.38 www 262: } else {
1.63 ! albertel 263: if (defined(&$func)) {
! 264: {
! 265: no strict 'refs';
! 266: $result.=&$func();
! 267: }
! 268: } else {
! 269: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
! 270: &Apache::lonxml::error("Unable to insert (after) tag $newtag, $func was not defined. ($tagname $tagnum)");
! 271: }
1.5 albertel 272: }
1.63 ! albertel 273: return $result;
1.16 albertel 274: }
275:
276: sub insert_responseparam {
1.63 ! albertel 277: return '
1.16 albertel 278: <responseparam />';
1.5 albertel 279: }
280:
1.24 albertel 281: sub insert_formularesponse {
1.63 ! albertel 282: return '
1.24 albertel 283: <formularesponse answer="" samples="">
284: <textline />
285: <hintgroup>
286: </hintgroup>
287: </formularesponse>';
288: }
289:
1.15 albertel 290: sub insert_numericalresponse {
1.63 ! albertel 291: return '
1.15 albertel 292: <numericalresponse answer="">
293: <textline />
294: <hintgroup>
295: </hintgroup>
296: </numericalresponse>';
297: }
298:
1.18 albertel 299: sub insert_stringresponse {
1.63 ! albertel 300: return '
1.18 albertel 301: <stringresponse answer="" type="">
302: <textline />
303: <hintgroup>
304: </hintgroup>
305: </stringresponse>';
1.36 albertel 306: }
307:
308: sub insert_essayresponse {
1.63 ! albertel 309: return '
1.36 albertel 310: <essayresponse>
311: <textfield></textfield>
312: </essayresponse>';
1.54 albertel 313: }
314:
315: sub insert_imageresponse {
1.63 ! albertel 316: return '
1.54 albertel 317: <imageresponse max="1">
318: <foilgroup>
319: </foilgroup>
320: <hintgroup>
321: </hintgroup>
322: </imageresponse>';
1.18 albertel 323: }
324:
1.7 albertel 325: sub insert_optionresponse {
1.63 ! albertel 326: return '
1.7 albertel 327: <optionresponse max="10">
328: <foilgroup options="">
329: </foilgroup>
1.14 albertel 330: <hintgroup>
331: </hintgroup>
1.7 albertel 332: </optionresponse>';
1.1 albertel 333: }
334:
1.23 albertel 335: sub insert_radiobuttonresponse {
1.63 ! albertel 336: return '
1.23 albertel 337: <radiobuttonresponse max="10">
338: <foilgroup>
339: </foilgroup>
340: <hintgroup>
341: </hintgroup>
342: </radiobuttonresponse>';
1.43 albertel 343: }
344:
345: sub insert_rankresponse {
1.63 ! albertel 346: return '
1.43 albertel 347: <rankresponse max="10">
348: <foilgroup options="">
349: </foilgroup>
350: <hintgroup>
351: </hintgroup>
352: </rankresponse>';
1.23 albertel 353: }
354:
1.44 albertel 355: sub insert_matchresponse {
1.63 ! albertel 356: return '
1.44 albertel 357: <matchresponse max="10">
358: <foilgroup options="">
359: <itemgroup>
360: </itemgroup>
361: </foilgroup>
362: <hintgroup>
363: </hintgroup>
364: </matchresponse>';
365: }
366:
1.21 albertel 367: sub insert_displayduedate { return '<displayduedate />'; }
368: sub insert_displaytitle { return '<displaytitle />'; }
1.22 albertel 369: sub insert_hintpart {
1.63 ! albertel 370: return '
1.22 albertel 371: <hintpart on="default">
372: <startouttext/>
373: <endouttext />
374: </hintpart>';
375: }
376:
377: sub insert_numericalhint {
1.63 ! albertel 378: return '
1.22 albertel 379: <numericalhint>
380: </numericalhint>';
1.46 albertel 381: }
382:
383: sub insert_stringhint {
1.63 ! albertel 384: return '
1.46 albertel 385: <stringhint>
386: </stringhint>';
387: }
388:
389: sub insert_formulahint {
1.63 ! albertel 390: return '
1.46 albertel 391: <formulahint>
392: </formulahint>';
1.37 albertel 393: }
394:
395: sub insert_radiobuttonhint {
1.63 ! albertel 396: return '
1.37 albertel 397: <radiobuttonhint>
398: </radiobuttonhint>';
1.50 albertel 399: }
400:
401: sub insert_optionhint {
1.63 ! albertel 402: return '
1.50 albertel 403: <optionhint>
404: </optionhint>';
1.22 albertel 405: }
1.21 albertel 406:
1.23 albertel 407: sub insert_startouttext {
1.63 ! albertel 408: return "<startouttext />\n<endouttext />";
1.23 albertel 409: }
410:
411: sub insert_script {
1.63 ! albertel 412: return "\n<script type=\"loncapa/perl\">\n</script>";
1.23 albertel 413: }
414:
1.25 albertel 415: sub textarea_sizes {
1.63 ! albertel 416: my ($data)=@_;
! 417: my $count=0;
! 418: my $maxlength=-1;
! 419: foreach (split ("\n", $$data)) {
! 420: $count+=int(length($_)/79);
! 421: $count++;
! 422: if (length($_) > $maxlength) { $maxlength = length($_); }
! 423: }
! 424: my $rows = $count;
! 425: my $cols = $maxlength;
! 426: return ($rows,$cols);
1.25 albertel 427: }
428:
1.32 albertel 429: sub editline {
1.31 matthew 430: my ($tag,$data,$description,$size)=@_;
1.32 albertel 431: $data=&HTML::Entities::encode($data);
1.31 matthew 432: if ($description) { $description="<br />".$description."<br />"; }
433: my $result = <<"END";
434: $description
435: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
436: value="$data" size="$size" />
437: END
438: return $result;
439: }
440:
1.2 albertel 441: sub editfield {
1.63 ! albertel 442: my ($tag,$data,$description,$minwidth,$minheight)=@_;
1.22 albertel 443:
1.63 ! albertel 444: my ($rows,$cols)=&textarea_sizes(\$data);
! 445: if ($cols > 80) { $cols = 80; }
! 446: if ($cols < $minwidth ) { $cols = $minwidth; }
! 447: if ($rows < $minheight) { $rows = $minheight; }
! 448: if ($description) { $description="<br />".$description."<br />"; }
! 449: return $description."\n".' <textarea rows="'.$rows.
! 450: '" cols="'.$cols.'" name="homework_edit_'.
! 451: $Apache::lonxml::curdepth.'">'.
! 452: &HTML::Entities::encode($data).'</textarea>'."\n";
1.2 albertel 453: }
454:
455: sub modifiedfield {
1.63 ! albertel 456: my ($token) = @_;
! 457: my $result;
1.3 albertel 458: # foreach my $envkey (sort keys %ENV) {
459: # &Apache::lonxml::debug("$envkey ---- $ENV{$envkey}");
460: # }
461: # &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
462: # &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});
1.63 ! albertel 463: $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};
! 464: return $result;
1.2 albertel 465: }
466:
1.15 albertel 467: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 468: # side-effects, will modify the $token if new values are found
469: sub get_new_args {
1.61 albertel 470: my ($token,$parstack,$safeeval,@args)=@_;
471: my $rebuild=0;
472: foreach my $arg (@args) {
1.63 ! albertel 473: #just want the string that it was set to
! 474: my $value=$token->[2]->{$arg};
! 475: my $element=&html_element_name($arg);
! 476: my $newvalue=$ENV{"form.$element"};
! 477: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
! 478: if (defined($newvalue) && $value ne $newvalue) {
! 479: if (ref($newvalue) eq 'ARRAY') {
! 480: $token->[2]->{$arg}=join(',',@$newvalue);
! 481: } else {
! 482: $token->[2]->{$arg}=$newvalue;
! 483: }
! 484: $rebuild=1;
1.61 albertel 485: }
1.12 albertel 486: }
1.63 ! albertel 487: return $rebuild;
1.12 albertel 488: }
489:
1.15 albertel 490: # looks for /> on start tags
1.12 albertel 491: sub rebuild_tag {
1.63 ! albertel 492: my ($token) = @_;
! 493: my $result;
! 494: if ($token->[0] eq 'S') {
! 495: $result = '<'.$token->[1];
! 496: while (my ($key,$val)= each(%{$token->[2]})) {
! 497: $val=~s:^\s+|\s+$::g;
! 498: $val=~s:"::g; #"
! 499: &Apache::lonxml::debug("setting :$key: to :$val:");
! 500: $result.=' '.$key.'="'.$val.'"';
! 501: }
! 502: if ($token->[4] =~ m:/>$:) {
! 503: $result.=' />';
! 504: } else {
! 505: $result.='>';
! 506: }
! 507: } elsif ( $token->[0] eq 'E' ) {
! 508: $result = '</'.$token->[1].'>';
1.12 albertel 509: }
1.63 ! albertel 510: return $result;
1.12 albertel 511: }
1.13 albertel 512:
1.47 matthew 513: sub html_element_name {
514: my ($name) = @_;
1.48 albertel 515: return $name.'_'.$Apache::lonxml::curdepth;
516: }
517:
518: sub hidden_arg {
519: my ($name,$token) = @_;
520: my $result;
521: my $arg=$token->[2]{$name};
522: $result='<input name="'.&html_element_name($name).
523: '" type="hidden" value="'.$arg.'" />';
1.61 albertel 524: return $result;
525: }
526:
527: sub checked_arg {
528: my ($description,$name,$list,$token) = @_;
529: my $result;
530: my $optionlist="";
531: my $allselected=$token->[2]{$name};
532: $result=$description;
533: foreach my $option (@$list) {
534: my ($value,$text);
535: if ( ref($option) eq 'ARRAY') {
536: $value='value="'.$$option[0].'"';
537: $text=$$option[1];
538: $option=$$option[0];
539: } else {
540: $text=$option;
541: $value='value="'.$option.'"';
542: }
543: $result.="<nobr><input type='checkbox' $value name='".
544: &html_element_name($name)."'";
545: foreach my $selected (split(/,/,$allselected)) {
546: if ( $selected eq $option ) {
547: $result.=" checked='on' ";
548: last;
549: }
550: }
551: $result.=" />$text</nobr>\n";
552: }
1.48 albertel 553: return $result;
1.47 matthew 554: }
555:
1.13 albertel 556: sub text_arg {
1.63 ! albertel 557: my ($description,$name,$token,$size) = @_;
! 558: my $result;
! 559: if (!defined $size) { $size=20; }
! 560: my $arg=$token->[2]{$name};
! 561: $result=$description.' <input name="'.&html_element_name($name).
! 562: '" type="text" value="'.$arg.'" size="'.$size.'" />';
! 563: return '<nobr>'.$result.'</nobr>';
1.13 albertel 564: }
565:
566: sub select_arg {
1.39 albertel 567: my ($description,$name,$list,$token) = @_;
568: my $result;
569: my $optionlist="";
570: my $selected=$token->[2]{$name};
571: foreach my $option (@$list) {
572: my $value;
573: if ( ref($option) eq 'ARRAY') {
574: $value='value="'.$$option[0].'"';
575: $option=$$option[1];
576: } else {
577: $value='value="'.$option.'"';
578: }
579: if ( $selected eq $option ) {
580: $optionlist.="<option $value selected=\"on\">$option</option>\n";
581: } else {
582: $optionlist.="<option $value >$option</option>\n";
583: }
1.13 albertel 584: }
1.57 albertel 585: $result.='<nobr>'.$description.' <select name="'.
586: &html_element_name($name).'">
1.13 albertel 587: '.$optionlist.'
1.57 albertel 588: </select></nobr>';
1.39 albertel 589: return $result;
1.13 albertel 590: }
591:
1.19 albertel 592: sub select_or_text_arg {
1.39 albertel 593: my ($description,$name,$list,$token,$size) = @_;
594: my $result;
595: my $optionlist="";
596: my $found=0;
597: my $selected=$token->[2]{$name};
598: foreach my $option (@$list) {
599: my $value;
600: if ( ref($option) eq 'ARRAY') {
601: $value='value="'.$$option[0].'"';
602: $option=$$option[1];
603: } else {
604: $value='value="'.$option.'"';
605: }
606: if ( $selected eq $option ) {
607: $optionlist.="<option $value selected=\"on\">$option</option>\n";
608: $found=1;
609: } else {
610: $optionlist.="<option $value>$option</option>\n";
611: }
612: }
1.60 www 613: $optionlist.="<option value=\"TYPEDINVALUE\"".
614: ((!$found)?' selected="on"':'').
615: ">Type in value</option>\n";
616: #
617: my $element=&html_element_name($name);
618: my $selectelement='select_list_'.$element;
619: my $typeinelement='type_in_'.$element;
620: my $typeinvalue=($found?'':$selected);
621: #
622: my $hiddenvalue='this.form.'.$element.'.value';
623: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
624: my $selectedvalue='this.form.'.$selectelement.
625: '.options['.$selectedindex.'].value';
626: my $typedinvalue='this.form.'.$typeinelement.'.value';
627: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
628: #
629: return (<<ENDSELECTORTYPE);
630: <nobr>
631: $description
632: <select name="$selectelement"
633: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }"
634: $optionlist
635: </select>
636: <input type="text" size="$size" name="$typeinelement"
637: value="$typeinvalue"
638: onChange="$hiddenvalue=$typedinvalue;"
639: onFocus="$selectedindex=$selecttypeinindex-1;" />
640: <input type="hidden" name="$element" value="$selected" />
641: </nobr>
642: ENDSELECTORTYPE
1.19 albertel 643: }
1.29 matthew 644:
1.49 www 645: #----------------------------------------------------- image coordinates
646: # single image coordinates, x, y
647: sub entercoords {
648: my ($idx,,$idy,$mode,$width,$height) = @_;
649: unless ($Apache::edit::bgimgsrc) { return ''; }
650: if ($idx) { $idx.='_'; }
651: if ($idy) { $idy.='_'; }
652: my $bgfile=&Apache::lonnet::escape($Apache::edit::bgimgsrc);
653: my $form = 'lonhomework';
654: my $element;
655: if (! defined($mode) || $mode eq 'attribute') {
656: $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth");
657: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
658: $element = &Apache::lonnet::escape('homework_edit_'.
659: $Apache::lonxml::curdepth);
660: }
661: my $formheight='';
662: if ($height) {
663: $formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
664: }
665: my $formwidth='';
666: if ($width) {
667: $formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
668: }
669: my $result = <<"ENDBUTTON";
670: <a href="/cgi-bin/imagechoice.pl?formname=$form&file=$bgfile&formx=$idx$element&formy=$idy$element$formheight$formwidth"
671: target="imagechoice">Click Coordinates</a>
672: ENDBUTTON
673: return $result;
674: }
675:
676: # coordinate pair (x1,y1)-(x2,y2)
677: sub entercoordpair {
678: my ($id,$mode,$width,$height) = @_;
679: unless ($Apache::edit::bgimgsrc) { return ''; }
680: my $bgfile=&Apache::lonnet::escape($Apache::edit::bgimgsrc);
681: my $form = 'lonhomework';
682: my $element;
683: if (! defined($mode) || $mode eq 'attribute') {
684: $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
685: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
686: $element = &Apache::lonnet::escape('homework_edit_'.
687: $Apache::lonxml::curdepth);
688: }
689: my $formheight='';
690: if ($height) {
691: $formheight='&formheight='.$height.'_'.$Apache::edit::bgimgsrccurdepth;
692: }
693: my $formwidth='';
694: if ($width) {
695: $formwidth='&formwidth='.$width.'_'.$Apache::edit::bgimgsrccurdepth;
696: }
697: my $result = <<"ENDBUTTON";
1.51 www 698: <a href="/cgi-bin/imagechoice.pl?mode=pair&formname=$form&file=$bgfile$formheight$formwidth&formcoord=$element"
1.49 www 699: target="imagechoice">Click Coordinate Pair</a>
700: ENDBUTTON
701: return $result;
702: }
1.29 matthew 703: #----------------------------------------------------- browse
704: sub browse {
705: # insert a link to call up the filesystem browser (lonindexer)
1.42 matthew 706: my ($id, $mode) = @_;
1.29 matthew 707: my $form = 'lonhomework';
1.42 matthew 708: my $element;
709: if (! defined($mode) || $mode eq 'attribute') {
1.49 www 710: $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
1.42 matthew 711: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
712: $element = &Apache::lonnet::escape('homework_edit_'.
713: $Apache::lonxml::curdepth);
714: }
1.29 matthew 715: my $result = <<"ENDBUTTON";
1.56 www 716: <a href=\"javascript:openbrowser('$form','$element')\"\>Select</a>
1.29 matthew 717: ENDBUTTON
718: return $result;
719: }
720:
1.30 matthew 721: #----------------------------------------------------- browse
722: sub search {
723: # insert a link to call up the filesystem browser (lonindexer)
1.49 www 724: my ($id, $mode) = @_;
1.30 matthew 725: my $form = 'lonhomework';
1.49 www 726: my $element;
727: if (! defined($mode) || $mode eq 'attribute') {
728: $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
729: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
730: $element = &Apache::lonnet::escape('homework_edit_'.
731: $Apache::lonxml::curdepth);
732: }
1.30 matthew 733: my $result = <<"ENDBUTTON";
734: <a href=\"javascript:opensearcher('$form','$element')\"\>Search</a>
735: ENDBUTTON
736: return $result;
737: }
738:
739:
1.1 albertel 740: 1;
741: __END__
1.26 harris41 742:
743: =head1 NAME
744:
745: Apache::edit - edit mode helpers
746:
747: =head1 SYNOPSIS
748:
749: Invoked by many homework and xml related modules.
750:
751: &Apache::edit::SUBROUTINENAME(ARGUMENTS);
752:
753: =head1 INTRODUCTION
754:
755: This module outputs HTML syntax helpful for the rendering of edit
756: mode interfaces.
757:
758: This is part of the LearningOnline Network with CAPA project
759: described at http://www.lon-capa.org.
760:
761: =head1 HANDLER SUBROUTINE
762:
763: There is no handler subroutine.
764:
765: =head1 OTHER SUBROUTINES
766:
767: =over 4
768:
769: =item *
770:
771: initialize_edit() : initialize edit (set colordepth to zero)
772:
773: =item *
774:
775: tag_start($target,$token,$description) : provide deletion and insertion lists
776: for the manipulation of a start tag; return a scalar string
777:
778: =item *
779:
780: tag_end($target,$token,$description) : ending syntax corresponding to
781: &tag_start. return a scalar string.
782:
783: =item *
784:
785: start_table($token) : start table; update colordepth; return scalar string.
786:
787: =item *
788:
789: end_table() : reduce color depth; end table; return scalar string
1.27 matthew 790:
791: =item *
792:
793: start_spanning_row() : start a new table row spanning the 'edit' environment.
794:
795: =item *
796:
797: start_row() : start a new table row and element.
798:
799: =item *
800:
801: end_row() : end current table element and row.
1.26 harris41 802:
803: =item *
804:
805: movebuttons($target,$token) : move-up and move-down buttons; return scalar
806: string
807:
808: =item *
809:
810: deletelist($target,$token) : provide a yes option in an HTML select element;
811: return scalar string
812:
813: =item *
814:
815: handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
816: $style) : respond to a user delete request by passing relevant stack
817: and array information to various rendering functions; return a scalar string
818:
819: =item *
820:
821: get_insert_list($token) : provide an insertion list based on possibilities
822: from lonxml; return a scalar string
823:
824: =item *
825:
826: insertlist($target,$token) : api that uses get_insert_list;
827: return a scalar string
828:
829: =item *
830:
831: handleinsert($token) : provide an insertion list based on possibilities
832: from lonxml; return a scalar string
833:
834: =item *
835:
836: get_insert_list($token) : provide an insertion list based on possibilities
837: from lonxml; return a scalar string
1.29 matthew 838:
839: =item *
840: browse($elementname) : provide a link which will open up the filesystem
841: browser (lonindexer) and, once a file is selected, place the result in
1.30 matthew 842: the form element $elementname.
843:
844: =item *
845: search($elementname) : provide a link which will open up the filesystem
846: searcher (lonsearchcat) and, once a file is selected, place the result in
1.29 matthew 847: the form element $elementname.
1.31 matthew 848:
1.34 harris41 849: =item *
1.32 albertel 850: editline(tag,data,description,size): Provide a <input type="text" ../> for
1.31 matthew 851: single-line text entry. This is to be used for text enclosed by tags, not
852: arguements/parameters associated with a tag.
1.26 harris41 853:
854: =back
855:
856: incomplete...
857:
858: =cut
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