Annotation of loncom/homework/edit.pm, revision 1.126
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
1.25 albertel 3: #
1.126 ! www 4: # $Id: edit.pm,v 1.125 2010/01/31 00:44:21 raeburn 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) { $description="<$tag>"; }
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> "; }
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=" ";
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:
1.15 albertel 400: sub insert_numericalresponse {
1.63 albertel 401: return '
1.15 albertel 402: <numericalresponse answer="">
1.90 www 403: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
404: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
1.15 albertel 405: <textline />
406: <hintgroup>
1.78 www 407: <startouttext /><endouttext />
1.15 albertel 408: </hintgroup>
409: </numericalresponse>';
410: }
411:
1.96 albertel 412: sub insert_customresponse {
1.95 albertel 413: return '
1.96 albertel 414: <customresponse>
1.95 albertel 415: <answer type="loncapa/perl">
416: </answer>
417: <textline />
418: <hintgroup>
419: <startouttext /><endouttext />
420: </hintgroup>
1.96 albertel 421: </customresponse>';
1.95 albertel 422: }
423:
1.96 albertel 424: sub insert_customresponse_answer {
1.95 albertel 425: return '
426: <answer type="loncapa/perl">
427: </answer>
428: ';
429: }
430:
1.106 albertel 431: sub insert_customhint {
432: return '
433: <customhint>
434: <answer type="loncapa/perl">
435: </answer>
436: </customhint>';
437: }
438:
439: sub insert_customhint_answer {
440: return '
441: <answer type="loncapa/perl">
442: </answer>
443: ';
444: }
445:
446: sub insert_mathresponse {
447: return '
448: <mathresponse>
449: <answer>
450: </answer>
451: <textline />
452: <hintgroup>
453: <startouttext />
454: <endouttext />
455: </hintgroup>
456: </mathresponse>';
457: }
458:
459: sub insert_mathresponse_answer {
460: return '
461: <answer>
462: </answer>
463: ';
464: }
465:
466: sub insert_mathhint {
467: return '
468: <mathhint>
469: <answer>
470: </answer>
471: </mathhint>';
472: }
473:
474: sub insert_mathhint_answer {
475: return '
476: <answer>
477: </answer>
478: ';
479: }
480:
1.18 albertel 481: sub insert_stringresponse {
1.63 albertel 482: return '
1.18 albertel 483: <stringresponse answer="" type="">
484: <textline />
485: <hintgroup>
1.78 www 486: <startouttext /><endouttext />
1.18 albertel 487: </hintgroup>
488: </stringresponse>';
1.36 albertel 489: }
490:
491: sub insert_essayresponse {
1.63 albertel 492: return '
1.36 albertel 493: <essayresponse>
494: <textfield></textfield>
495: </essayresponse>';
1.54 albertel 496: }
497:
498: sub insert_imageresponse {
1.63 albertel 499: return '
1.54 albertel 500: <imageresponse max="1">
501: <foilgroup>
1.89 albertel 502: <foil>
503: </foil>
1.54 albertel 504: </foilgroup>
505: <hintgroup>
1.78 www 506: <startouttext /><endouttext />
1.54 albertel 507: </hintgroup>
508: </imageresponse>';
1.18 albertel 509: }
510:
1.7 albertel 511: sub insert_optionresponse {
1.63 albertel 512: return '
1.7 albertel 513: <optionresponse max="10">
514: <foilgroup options="">
1.89 albertel 515: <foil>
516: <startouttext /><endouttext />
517: </foil>
1.7 albertel 518: </foilgroup>
1.14 albertel 519: <hintgroup>
1.78 www 520: <startouttext /><endouttext />
1.14 albertel 521: </hintgroup>
1.7 albertel 522: </optionresponse>';
1.1 albertel 523: }
524:
1.72 albertel 525: sub insert_organicresponse {
526: return '
527: <organicresponse>
528: <textline />
529: <hintgroup>
1.78 www 530: <startouttext /><endouttext />
1.72 albertel 531: </hintgroup>
532: </organicresponse>';
533: }
534:
535: sub insert_organicstructure {
536: return '
537: <organicstructure />
538: ';
539: }
540:
1.23 albertel 541: sub insert_radiobuttonresponse {
1.63 albertel 542: return '
1.23 albertel 543: <radiobuttonresponse max="10">
544: <foilgroup>
1.89 albertel 545: <foil>
546: <startouttext /><endouttext />
547: </foil>
1.23 albertel 548: </foilgroup>
549: <hintgroup>
1.78 www 550: <startouttext /><endouttext />
1.23 albertel 551: </hintgroup>
552: </radiobuttonresponse>';
1.72 albertel 553: }
554:
555: sub insert_reactionresponse {
556: return '
557: <reactionresponse>
558: <textline />
559: <hintgroup>
1.78 www 560: <startouttext /><endouttext />
1.72 albertel 561: </hintgroup>
562: </reactionresponse>';
1.43 albertel 563: }
564:
565: sub insert_rankresponse {
1.63 albertel 566: return '
1.43 albertel 567: <rankresponse max="10">
568: <foilgroup options="">
1.89 albertel 569: <foil>
570: <startouttext /><endouttext />
571: </foil>
1.43 albertel 572: </foilgroup>
573: <hintgroup>
1.78 www 574: <startouttext /><endouttext />
1.43 albertel 575: </hintgroup>
576: </rankresponse>';
1.23 albertel 577: }
578:
1.44 albertel 579: sub insert_matchresponse {
1.63 albertel 580: return '
1.44 albertel 581: <matchresponse max="10">
582: <foilgroup options="">
583: <itemgroup>
584: </itemgroup>
1.89 albertel 585: <foil>
586: <startouttext /><endouttext />
587: </foil>
1.44 albertel 588: </foilgroup>
589: <hintgroup>
1.78 www 590: <startouttext /><endouttext />
1.44 albertel 591: </hintgroup>
592: </matchresponse>';
593: }
594:
1.21 albertel 595: sub insert_displayduedate { return '<displayduedate />'; }
596: sub insert_displaytitle { return '<displaytitle />'; }
1.22 albertel 597: sub insert_hintpart {
1.63 albertel 598: return '
1.22 albertel 599: <hintpart on="default">
1.90 www 600: <startouttext/><endouttext />
1.22 albertel 601: </hintpart>';
1.67 albertel 602: }
603:
604: sub insert_hintgroup {
605: return '
606: <hintgroup>
1.78 www 607: <startouttext /><endouttext />
1.67 albertel 608: </hintgroup>';
1.22 albertel 609: }
610:
611: sub insert_numericalhint {
1.63 albertel 612: return '
1.22 albertel 613: <numericalhint>
614: </numericalhint>';
1.46 albertel 615: }
616:
1.123 www 617: sub insert_reactionhint {
618: return '
619: <reactionhint>
620: </reactionhint>';
621: }
622:
623: sub insert_organichint {
624: return '
625: <organichint>
626: </organichint>';
627: }
628:
1.46 albertel 629: sub insert_stringhint {
1.63 albertel 630: return '
1.46 albertel 631: <stringhint>
632: </stringhint>';
633: }
634:
635: sub insert_formulahint {
1.63 albertel 636: return '
1.46 albertel 637: <formulahint>
638: </formulahint>';
1.37 albertel 639: }
640:
641: sub insert_radiobuttonhint {
1.63 albertel 642: return '
1.37 albertel 643: <radiobuttonhint>
644: </radiobuttonhint>';
1.50 albertel 645: }
646:
647: sub insert_optionhint {
1.63 albertel 648: return '
1.50 albertel 649: <optionhint>
650: </optionhint>';
1.22 albertel 651: }
1.21 albertel 652:
1.23 albertel 653: sub insert_startouttext {
1.78 www 654: return "<startouttext /><endouttext />";
1.23 albertel 655: }
656:
657: sub insert_script {
1.78 www 658: return "\n<script type=\"loncapa/perl\"></script>";
1.23 albertel 659: }
660:
1.98 albertel 661: sub js_change_detection {
662: my $unsaved=&mt("There are unsaved changes");
663: return (<<SCRIPT);
664: <script type="text/javascript">
665: var clean = true;
666: var is_submit = false;
1.99 albertel 667: var still_ask = false;
1.98 albertel 668: function compareForm(event_) {
669: if (!event_ && window.event) {
670: event_ = window.event;
671: }
1.99 albertel 672: if ((!is_submit || (is_submit && still_ask)) && !clean) {
673: still_ask = false;
674: is_submit = false;
1.98 albertel 675: event_.returnValue = "$unsaved";
676: return "$unsaved";
677: }
678: }
679: function unClean() {
680: clean=false;
681: }
682: window.onbeforeunload = compareForm;
683: </script>
684: SCRIPT
685: }
686:
687: sub form_change_detection {
688: return ' onsubmit="is_submit=true;" ';
689: }
690:
691: sub element_change_detection {
692: return ' onchange="unClean();" ';
693: }
694:
1.99 albertel 695: sub submit_ask_anyway {
1.113 raeburn 696: my ($extra_action) = @_;
697: return ' onclick="still_ask=true;'.$extra_action.'" ';
1.99 albertel 698: }
699:
1.25 albertel 700: sub textarea_sizes {
1.63 albertel 701: my ($data)=@_;
702: my $count=0;
703: my $maxlength=-1;
704: foreach (split ("\n", $$data)) {
705: $count+=int(length($_)/79);
706: $count++;
707: if (length($_) > $maxlength) { $maxlength = length($_); }
708: }
709: my $rows = $count;
710: my $cols = $maxlength;
711: return ($rows,$cols);
1.25 albertel 712: }
713:
1.32 albertel 714: sub editline {
1.31 matthew 715: my ($tag,$data,$description,$size)=@_;
1.81 albertel 716: $data=&HTML::Entities::encode($data,'<>&"');
1.112 albertel 717: if ($description) { $description=$description."<br />"; }
1.98 albertel 718: my $change_code = &element_change_detection();
1.31 matthew 719: my $result = <<"END";
720: $description
721: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
1.98 albertel 722: value="$data" size="$size" $change_code />
1.31 matthew 723: END
724: return $result;
725: }
726:
1.2 albertel 727: sub editfield {
1.82 www 728: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22 albertel 729:
1.63 albertel 730: my ($rows,$cols)=&textarea_sizes(\$data);
1.84 www 731: if (&Apache::lonhtmlcommon::htmlareabrowser() &&
732: !&Apache::lonhtmlcommon::htmlareablocked()) {
733: $rows+=7; # make room for HTMLarea
734: $minheight+=7; # make room for HTMLarea
735: }
1.63 albertel 736: if ($cols > 80) { $cols = 80; }
737: if ($cols < $minwidth ) { $cols = $minwidth; }
738: if ($rows < $minheight) { $rows = $minheight; }
1.112 albertel 739: if ($description) { $description=$description."<br />"; }
1.82 www 740: if ($usehtmlarea) {
1.101 albertel 741: &Apache::lonhtmlcommon::add_htmlareafields('homework_edit_'.
742: $Apache::lonxml::curdepth);
1.82 www 743: }
1.105 albertel 744: # remove typesetting whitespace from between data and the end tag
745: # to make the edit look prettier
746: $data =~ s/\n?[ \t]*$//;
747:
1.103 albertel 748: return $description."\n".'<textarea style="width:100%" rows="'.$rows.
1.63 albertel 749: '" cols="'.$cols.'" name="homework_edit_'.
1.82 www 750: $Apache::lonxml::curdepth.'" id="homework_edit_'.
1.98 albertel 751: $Apache::lonxml::curdepth.'" '.&element_change_detection().'>'.
1.85 www 752: &HTML::Entities::encode($data,'<>&"').'</textarea>'.
753: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
754: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2 albertel 755: }
756:
757: sub modifiedfield {
1.70 albertel 758: my ($endtag,$parser) = @_;
1.63 albertel 759: my $result;
1.92 albertel 760: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70 albertel 761: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
762: # textareas throw away intial \n
1.105 albertel 763: if ($bodytext=~/^\n/) {
764: $result="\n".$result;
765: }
766: # if there is typesetting whitespace from between the data and the end tag
767: # restore to keep the source looking pretty
768: if ($bodytext =~ /(\n?[ \t]*)$/) {
769: $result .= $1;
770: }
1.63 albertel 771: return $result;
1.2 albertel 772: }
773:
1.15 albertel 774: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 775: # side-effects, will modify the $token if new values are found
776: sub get_new_args {
1.61 albertel 777: my ($token,$parstack,$safeeval,@args)=@_;
778: my $rebuild=0;
779: foreach my $arg (@args) {
1.63 albertel 780: #just want the string that it was set to
781: my $value=$token->[2]->{$arg};
782: my $element=&html_element_name($arg);
1.92 albertel 783: my $newvalue=$env{"form.$element"};
1.63 albertel 784: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
785: if (defined($newvalue) && $value ne $newvalue) {
786: if (ref($newvalue) eq 'ARRAY') {
787: $token->[2]->{$arg}=join(',',@$newvalue);
788: } else {
789: $token->[2]->{$arg}=$newvalue;
790: }
1.79 albertel 791: $rebuild=1;
1.111 albertel 792: # add new attributes to the of the attribute seq
793: if (!grep { $arg eq $_ } (@{ $token->[3] })) {
794: push(@{ $token->[3] },$arg);
795: }
1.79 albertel 796: } elsif (!defined($newvalue) && defined($value)) {
797: delete($token->[2]->{$arg});
1.63 albertel 798: $rebuild=1;
1.61 albertel 799: }
1.12 albertel 800: }
1.63 albertel 801: return $rebuild;
1.12 albertel 802: }
803:
1.15 albertel 804: # looks for /> on start tags
1.12 albertel 805: sub rebuild_tag {
1.63 albertel 806: my ($token) = @_;
807: my $result;
808: if ($token->[0] eq 'S') {
809: $result = '<'.$token->[1];
1.109 albertel 810: foreach my $attribute (@{ $token->[3] }) {
811: my $value = $token->[2]{$attribute};
1.111 albertel 812: next if ($value eq '');
1.109 albertel 813: $value =~s/^\s+|\s+$//g;
814: $value =~s/\"//g;
815: &Apache::lonxml::debug("setting :$attribute: to :$value:");
816: $result.=' '.$attribute.'="'.$value.'"';
1.63 albertel 817: }
818: if ($token->[4] =~ m:/>$:) {
819: $result.=' />';
820: } else {
821: $result.='>';
822: }
823: } elsif ( $token->[0] eq 'E' ) {
824: $result = '</'.$token->[1].'>';
1.12 albertel 825: }
1.63 albertel 826: return $result;
1.12 albertel 827: }
1.13 albertel 828:
1.47 matthew 829: sub html_element_name {
830: my ($name) = @_;
1.48 albertel 831: return $name.'_'.$Apache::lonxml::curdepth;
832: }
833:
834: sub hidden_arg {
835: my ($name,$token) = @_;
836: my $result;
837: my $arg=$token->[2]{$name};
838: $result='<input name="'.&html_element_name($name).
839: '" type="hidden" value="'.$arg.'" />';
1.61 albertel 840: return $result;
841: }
842:
843: sub checked_arg {
844: my ($description,$name,$list,$token) = @_;
845: my $result;
846: my $optionlist="";
847: my $allselected=$token->[2]{$name};
1.71 www 848: $result=&mt($description);
1.61 albertel 849: foreach my $option (@$list) {
850: my ($value,$text);
851: if ( ref($option) eq 'ARRAY') {
852: $value='value="'.$$option[0].'"';
853: $text=$$option[1];
854: $option=$$option[0];
855: } else {
856: $text=$option;
857: $value='value="'.$option.'"';
858: }
1.119 raeburn 859: $result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
860: &html_element_name($name).'"';
1.61 albertel 861: foreach my $selected (split(/,/,$allselected)) {
862: if ( $selected eq $option ) {
1.119 raeburn 863: $result.=' checked="checked" ';
1.61 albertel 864: last;
865: }
866: }
1.119 raeburn 867: $result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
1.61 albertel 868: }
1.48 albertel 869: return $result;
1.47 matthew 870: }
871:
1.13 albertel 872: sub text_arg {
1.63 albertel 873: my ($description,$name,$token,$size) = @_;
874: my $result;
875: if (!defined $size) { $size=20; }
876: my $arg=$token->[2]{$name};
1.71 www 877: $result=&mt($description).' <input name="'.&html_element_name($name).
1.98 albertel 878: '" type="text" value="'.$arg.'" size="'.$size.'" '.
879: &element_change_detection().'/>';
1.119 raeburn 880: return '<span class="LC_nobreak">'.$result.'</span>';
1.13 albertel 881: }
882:
883: sub select_arg {
1.39 albertel 884: my ($description,$name,$list,$token) = @_;
885: my $result;
886: my $optionlist="";
887: my $selected=$token->[2]{$name};
1.121 raeburn 888: if (ref($list) eq 'ARRAY') {
889: foreach my $option (@{$list}) {
890: my ($text,$value);
891: if (ref($option) eq 'ARRAY') {
892: $value='value="'.&HTML::Entities::encode($option->[0]).'"';
893: $text=$option->[1];
894: $option=$option->[0];
895: } else {
896: $text=$option;
897: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
898: }
899: if ( $selected eq $option ) {
900: $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
901: } else {
902: $optionlist.="<option $value >".&mt($text)."</option>\n";
903: }
904: }
1.13 albertel 905: }
1.120 bisitz 906: $result.='<span class="LC_nobreak">'.&mt($description).' <select name="'.
1.98 albertel 907: &html_element_name($name).'" '.&element_change_detection().' >
1.13 albertel 908: '.$optionlist.'
1.119 raeburn 909: </select></span>';
1.39 albertel 910: return $result;
1.13 albertel 911: }
912:
1.19 albertel 913: sub select_or_text_arg {
1.39 albertel 914: my ($description,$name,$list,$token,$size) = @_;
915: my $result;
916: my $optionlist="";
917: my $found=0;
918: my $selected=$token->[2]{$name};
1.121 raeburn 919: if (ref($list) eq 'ARRAY') {
920: foreach my $option (@{$list}) {
921: my ($text,$value);
922: if (ref($option) eq 'ARRAY') {
923: $value='value="'.&HTML::Entities::encode($option->[0]).'"';
924: $text=$option->[1];
925: $option=$option->[0];
926: } else {
927: $text=$option;
928: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
929: }
930: if ( $selected eq $option ) {
931: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
932: $found=1;
933: } else {
934: $optionlist.="<option $value>$text</option>\n";
935: }
936: }
1.39 albertel 937: }
1.60 www 938: $optionlist.="<option value=\"TYPEDINVALUE\"".
1.88 albertel 939: ((!$found)?' selected="selected"':'').
1.73 www 940: ">".&mt('Type-in value')."</option>\n";
1.60 www 941: #
1.98 albertel 942: my $change_code=&element_change_detection();
1.60 www 943: my $element=&html_element_name($name);
944: my $selectelement='select_list_'.$element;
945: my $typeinelement='type_in_'.$element;
946: my $typeinvalue=($found?'':$selected);
947: #
948: my $hiddenvalue='this.form.'.$element.'.value';
949: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
950: my $selectedvalue='this.form.'.$selectelement.
951: '.options['.$selectedindex.'].value';
952: my $typedinvalue='this.form.'.$typeinelement.'.value';
953: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71 www 954: $description=&mt($description);
1.60 www 955: #
956: return (<<ENDSELECTORTYPE);
1.119 raeburn 957: <span class="LC_nobreak">
1.60 www 958: $description
959: <select name="$selectelement"
1.74 albertel 960: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60 www 961: $optionlist
962: </select>
963: <input type="text" size="$size" name="$typeinelement"
964: value="$typeinvalue"
965: onChange="$hiddenvalue=$typedinvalue;"
966: onFocus="$selectedindex=$selecttypeinindex-1;" />
1.98 albertel 967: <input type="hidden" name="$element" value="$selected" $change_code />
1.119 raeburn 968: </span>
1.60 www 969: ENDSELECTORTYPE
1.19 albertel 970: }
1.29 matthew 971:
1.49 www 972: #----------------------------------------------------- image coordinates
973: # single image coordinates, x, y
974: sub entercoords {
1.80 albertel 975: my ($idx,$idy,$mode,$width,$height) = @_;
1.49 www 976: unless ($Apache::edit::bgimgsrc) { return ''; }
977: if ($idx) { $idx.='_'; }
978: if ($idy) { $idy.='_'; }
1.102 www 979: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49 www 980: my $form = 'lonhomework';
981: my $element;
982: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 983: $element = &escape("$Apache::lonxml::curdepth");
1.49 www 984: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 985: $element = &escape('homework_edit_'.
1.49 www 986: $Apache::lonxml::curdepth);
987: }
1.80 albertel 988: my $id=$Apache::lonxml::curdepth;
989: my %data=("imagechoice.$id.type" =>'point',
990: "imagechoice.$id.formname" =>$form,
991: "imagechoice.$id.formx" =>"$idx$element",
992: "imagechoice.$id.formy" =>"$idy$element",
993: "imagechoice.$id.file" =>$bgfile,
994: "imagechoice.$id.formcoord" =>$element);
1.49 www 995: if ($height) {
1.80 albertel 996: $data{"imagechoice.$id.formheight"}=$height.'_'.
997: $Apache::edit::bgimgsrccurdepth;
1.49 www 998: }
999: if ($width) {
1.80 albertel 1000: $data{"imagechoice.$id.formwidth"}=$width.'_'.
1001: $Apache::edit::bgimgsrccurdepth;
1.49 www 1002: }
1.114 raeburn 1003: &Apache::lonnet::appenv(\%data);
1.80 albertel 1004: my $text="Click Coordinates";
1005: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 1006: return $result;
1007: }
1008:
1.77 albertel 1009: # coordinates (x1,y1)-(x2,y2)...
1010: # mode can be either box, or polygon
1011: sub entercoord {
1012: my ($idx,$mode,$width,$height,$type) = @_;
1.49 www 1013: unless ($Apache::edit::bgimgsrc) { return ''; }
1.102 www 1014: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75 albertel 1015: my $form = 'lonhomework';
1016: my $element;
1017: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1018: $element = &escape("$idx\_$Apache::lonxml::curdepth");
1.75 albertel 1019: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1020: $element = &escape('homework_edit_'.
1.75 albertel 1021: $Apache::lonxml::curdepth);
1022: }
1.76 albertel 1023: my $id=$Apache::lonxml::curdepth;
1.77 albertel 1024: my %data=("imagechoice.$id.type" =>$type,
1.76 albertel 1025: "imagechoice.$id.formname" =>$form,
1026: "imagechoice.$id.file" =>$bgfile,
1027: "imagechoice.$id.formcoord" =>$element);
1.75 albertel 1028: if ($height) {
1.76 albertel 1029: $data{"imagechoice.$id.formheight"}=$height.'_'.
1030: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 1031: }
1032: if ($width) {
1.76 albertel 1033: $data{"imagechoice.$id.formwidth"}=$width.'_'.
1034: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 1035: }
1.114 raeburn 1036: &Apache::lonnet::appenv(\%data);
1.77 albertel 1037: my $text="Enter Coordinates";
1038: if ($type eq 'polygon') { $text='Create Polygon Data'; }
1039: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 1040: return $result;
1041: }
1.76 albertel 1042:
1043: sub deletecoorddata {
1.122 raeburn 1044: &Apache::lonnet::delenv('imagechoice.');
1.76 albertel 1045: }
1046:
1.29 matthew 1047: #----------------------------------------------------- browse
1048: sub browse {
1049: # insert a link to call up the filesystem browser (lonindexer)
1.107 banghart 1050: my ($id, $mode, $titleid, $only) = @_;
1.29 matthew 1051: my $form = 'lonhomework';
1.42 matthew 1052: my $element;
1053: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1054: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.42 matthew 1055: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1056: $element = &escape('homework_edit_'.
1.68 albertel 1057: $Apache::lonxml::curdepth);
1058: }
1059: my $titleelement;
1060: if ($titleid) {
1.107 banghart 1061: $titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.108 banghart 1062: } else {
1063: $titleelement=",'$only'";
1.42 matthew 1064: }
1.29 matthew 1065: my $result = <<"ENDBUTTON";
1.68 albertel 1066: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29 matthew 1067: ENDBUTTON
1068: return $result;
1069: }
1070:
1.30 matthew 1071: #----------------------------------------------------- browse
1072: sub search {
1073: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 1074: my ($id, $mode, $titleid) = @_;
1.30 matthew 1075: my $form = 'lonhomework';
1.49 www 1076: my $element;
1077: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1078: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.49 www 1079: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1080: $element = &escape('homework_edit_'.
1.49 www 1081: $Apache::lonxml::curdepth);
1082: }
1.68 albertel 1083: my $titleelement;
1084: if ($titleid) {
1.102 www 1085: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.68 albertel 1086: }
1.30 matthew 1087: my $result = <<"ENDBUTTON";
1.68 albertel 1088: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30 matthew 1089: ENDBUTTON
1090: return $result;
1091: }
1092:
1093:
1.1 albertel 1094: 1;
1095: __END__
1.26 harris41 1096:
1097:
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