Annotation of loncom/homework/edit.pm, revision 1.142
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
1.25 albertel 3: #
1.142 ! raeburn 4: # $Id: edit.pm,v 1.141 2012/02/28 22:42:31 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) { $description="<$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:
1.129 www 400: sub insert_functionplotresponse {
401: return '
402: <functionplotresponse>
1.133 www 403: <functionplotelements>
404: </functionplotelements>
405: <functionplotruleset>
406: </functionplotruleset>
1.129 www 407: </functionplotresponse>';
408: }
409:
1.131 www 410: sub insert_spline {
411: return '
412: <spline />';
413: }
414:
415: sub insert_backgroundplot {
416: return '
417: <backgroundplot />';
418: }
419:
1.136 www 420: sub insert_plotobject {
421: return '
422: <plotobject />';
423: }
424:
425: sub insert_plotvector {
426: return '
427: <plotvector />';
428: }
429:
1.141 www 430: sub insert_drawvectorsum {
431: return '
432: <drawvectorsum />';
433: }
434:
435:
1.132 www 436: sub insert_functionplotrule {
1.131 www 437: return '
1.132 www 438: <functionplotrule />';
1.131 www 439: }
440:
1.137 www 441: sub insert_functionplotvectorrule {
442: return '
443: <functionplotvectorrule />';
444: }
445:
446: sub insert_functionplotvectorsumrule {
447: return '
448: <functionplotvectorsumrule />';
449: }
450:
1.138 www 451: sub insert_functionplotcustomrule {
452: return '
453: <functionplotcustomrule>
454: <answer type="loncapa/perl">
455: # &fpr_val("label"), &fpr_f($x), &fpr_dfdx($x), &fpr_d2fdx2($x)
456: # ($xs,$xe,$ys,$ye)=&fpr_vectorcoords("Name"), ($x,$y)=&fpr_objectcoords("Name")
457: # &fpr_vectorlength("Name"), &fpr_vectorangle("Name")
458:
459: # Return 0 or 1
460: return 1;
461: </answer>
462: </functionplotcustomrule>';
463: }
464:
1.133 www 465: sub insert_functionplotruleset {
466: return '
467: <functionplotruleset>
468: <functionplotrule />
469: </functionplotruleset>';
470: }
1.131 www 471:
1.133 www 472: sub insert_functionplotelements {
473: return '
474: <functionplotelements>
475: <spline />
476: </functionplotelements>';
477: }
1.131 www 478:
1.15 albertel 479: sub insert_numericalresponse {
1.63 albertel 480: return '
1.15 albertel 481: <numericalresponse answer="">
1.90 www 482: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
483: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
1.15 albertel 484: <textline />
485: <hintgroup>
1.78 www 486: <startouttext /><endouttext />
1.15 albertel 487: </hintgroup>
488: </numericalresponse>';
489: }
490:
1.96 albertel 491: sub insert_customresponse {
1.95 albertel 492: return '
1.96 albertel 493: <customresponse>
1.95 albertel 494: <answer type="loncapa/perl">
495: </answer>
496: <textline />
497: <hintgroup>
498: <startouttext /><endouttext />
499: </hintgroup>
1.96 albertel 500: </customresponse>';
1.95 albertel 501: }
502:
1.96 albertel 503: sub insert_customresponse_answer {
1.95 albertel 504: return '
505: <answer type="loncapa/perl">
506: </answer>
507: ';
508: }
509:
1.106 albertel 510: sub insert_customhint {
511: return '
512: <customhint>
513: <answer type="loncapa/perl">
514: </answer>
515: </customhint>';
516: }
517:
518: sub insert_customhint_answer {
519: return '
520: <answer type="loncapa/perl">
521: </answer>
522: ';
523: }
524:
525: sub insert_mathresponse {
526: return '
527: <mathresponse>
528: <answer>
529: </answer>
530: <textline />
531: <hintgroup>
532: <startouttext />
533: <endouttext />
534: </hintgroup>
535: </mathresponse>';
536: }
537:
538: sub insert_mathresponse_answer {
539: return '
540: <answer>
541: </answer>
542: ';
543: }
544:
545: sub insert_mathhint {
546: return '
547: <mathhint>
548: <answer>
549: </answer>
550: </mathhint>';
551: }
552:
553: sub insert_mathhint_answer {
554: return '
555: <answer>
556: </answer>
557: ';
558: }
559:
1.18 albertel 560: sub insert_stringresponse {
1.63 albertel 561: return '
1.18 albertel 562: <stringresponse answer="" type="">
563: <textline />
564: <hintgroup>
1.78 www 565: <startouttext /><endouttext />
1.18 albertel 566: </hintgroup>
567: </stringresponse>';
1.36 albertel 568: }
569:
570: sub insert_essayresponse {
1.63 albertel 571: return '
1.36 albertel 572: <essayresponse>
573: <textfield></textfield>
574: </essayresponse>';
1.54 albertel 575: }
576:
577: sub insert_imageresponse {
1.63 albertel 578: return '
1.54 albertel 579: <imageresponse max="1">
580: <foilgroup>
1.89 albertel 581: <foil>
582: </foil>
1.54 albertel 583: </foilgroup>
584: <hintgroup>
1.78 www 585: <startouttext /><endouttext />
1.54 albertel 586: </hintgroup>
587: </imageresponse>';
1.18 albertel 588: }
589:
1.7 albertel 590: sub insert_optionresponse {
1.63 albertel 591: return '
1.7 albertel 592: <optionresponse max="10">
593: <foilgroup options="">
1.89 albertel 594: <foil>
595: <startouttext /><endouttext />
596: </foil>
1.7 albertel 597: </foilgroup>
1.14 albertel 598: <hintgroup>
1.78 www 599: <startouttext /><endouttext />
1.14 albertel 600: </hintgroup>
1.7 albertel 601: </optionresponse>';
1.1 albertel 602: }
603:
1.72 albertel 604: sub insert_organicresponse {
605: return '
606: <organicresponse>
607: <textline />
608: <hintgroup>
1.78 www 609: <startouttext /><endouttext />
1.72 albertel 610: </hintgroup>
611: </organicresponse>';
612: }
613:
614: sub insert_organicstructure {
615: return '
616: <organicstructure />
617: ';
618: }
619:
1.23 albertel 620: sub insert_radiobuttonresponse {
1.63 albertel 621: return '
1.23 albertel 622: <radiobuttonresponse max="10">
623: <foilgroup>
1.89 albertel 624: <foil>
625: <startouttext /><endouttext />
626: </foil>
1.23 albertel 627: </foilgroup>
628: <hintgroup>
1.78 www 629: <startouttext /><endouttext />
1.23 albertel 630: </hintgroup>
631: </radiobuttonresponse>';
1.72 albertel 632: }
633:
634: sub insert_reactionresponse {
635: return '
636: <reactionresponse>
637: <textline />
638: <hintgroup>
1.78 www 639: <startouttext /><endouttext />
1.72 albertel 640: </hintgroup>
641: </reactionresponse>';
1.43 albertel 642: }
643:
644: sub insert_rankresponse {
1.63 albertel 645: return '
1.43 albertel 646: <rankresponse max="10">
647: <foilgroup options="">
1.89 albertel 648: <foil>
649: <startouttext /><endouttext />
650: </foil>
1.43 albertel 651: </foilgroup>
652: <hintgroup>
1.78 www 653: <startouttext /><endouttext />
1.43 albertel 654: </hintgroup>
655: </rankresponse>';
1.23 albertel 656: }
657:
1.44 albertel 658: sub insert_matchresponse {
1.63 albertel 659: return '
1.44 albertel 660: <matchresponse max="10">
661: <foilgroup options="">
662: <itemgroup>
663: </itemgroup>
1.89 albertel 664: <foil>
665: <startouttext /><endouttext />
666: </foil>
1.44 albertel 667: </foilgroup>
668: <hintgroup>
1.78 www 669: <startouttext /><endouttext />
1.44 albertel 670: </hintgroup>
671: </matchresponse>';
672: }
673:
1.127 www 674: sub insert_startpartmarker { return '<startpartmarker />'; }
675: sub insert_endpartmarker { return '<endpartmarker />'; }
676:
1.21 albertel 677: sub insert_displayduedate { return '<displayduedate />'; }
678: sub insert_displaytitle { return '<displaytitle />'; }
1.22 albertel 679: sub insert_hintpart {
1.63 albertel 680: return '
1.22 albertel 681: <hintpart on="default">
1.90 www 682: <startouttext/><endouttext />
1.22 albertel 683: </hintpart>';
1.67 albertel 684: }
685:
686: sub insert_hintgroup {
687: return '
688: <hintgroup>
1.78 www 689: <startouttext /><endouttext />
1.67 albertel 690: </hintgroup>';
1.22 albertel 691: }
692:
693: sub insert_numericalhint {
1.63 albertel 694: return '
1.22 albertel 695: <numericalhint>
696: </numericalhint>';
1.46 albertel 697: }
698:
1.123 www 699: sub insert_reactionhint {
700: return '
701: <reactionhint>
702: </reactionhint>';
703: }
704:
705: sub insert_organichint {
706: return '
707: <organichint>
708: </organichint>';
709: }
710:
1.46 albertel 711: sub insert_stringhint {
1.63 albertel 712: return '
1.46 albertel 713: <stringhint>
714: </stringhint>';
715: }
716:
717: sub insert_formulahint {
1.63 albertel 718: return '
1.46 albertel 719: <formulahint>
720: </formulahint>';
1.37 albertel 721: }
722:
723: sub insert_radiobuttonhint {
1.63 albertel 724: return '
1.37 albertel 725: <radiobuttonhint>
726: </radiobuttonhint>';
1.50 albertel 727: }
728:
729: sub insert_optionhint {
1.63 albertel 730: return '
1.50 albertel 731: <optionhint>
732: </optionhint>';
1.22 albertel 733: }
1.21 albertel 734:
1.23 albertel 735: sub insert_startouttext {
1.78 www 736: return "<startouttext /><endouttext />";
1.23 albertel 737: }
738:
739: sub insert_script {
1.78 www 740: return "\n<script type=\"loncapa/perl\"></script>";
1.23 albertel 741: }
742:
1.98 albertel 743: sub js_change_detection {
744: my $unsaved=&mt("There are unsaved changes");
745: return (<<SCRIPT);
746: <script type="text/javascript">
1.142 ! raeburn 747: // <![CDATA[
1.98 albertel 748: var clean = true;
749: var is_submit = false;
1.99 albertel 750: var still_ask = false;
1.98 albertel 751: function compareForm(event_) {
752: if (!event_ && window.event) {
753: event_ = window.event;
754: }
1.99 albertel 755: if ((!is_submit || (is_submit && still_ask)) && !clean) {
756: still_ask = false;
757: is_submit = false;
1.98 albertel 758: event_.returnValue = "$unsaved";
759: return "$unsaved";
760: }
761: }
762: function unClean() {
763: clean=false;
764: }
765: window.onbeforeunload = compareForm;
1.142 ! raeburn 766: // ]]>
1.98 albertel 767: </script>
768: SCRIPT
769: }
770:
771: sub form_change_detection {
772: return ' onsubmit="is_submit=true;" ';
773: }
774:
775: sub element_change_detection {
776: return ' onchange="unClean();" ';
777: }
778:
1.99 albertel 779: sub submit_ask_anyway {
1.113 raeburn 780: my ($extra_action) = @_;
781: return ' onclick="still_ask=true;'.$extra_action.'" ';
1.99 albertel 782: }
783:
1.134 www 784: sub submit_dont_ask {
785: my ($extra_action) = @_;
786: return ' onclick="is_submit=true;'.$extra_action.'" ';
787: }
788:
789:
1.25 albertel 790: sub textarea_sizes {
1.63 albertel 791: my ($data)=@_;
792: my $count=0;
793: my $maxlength=-1;
794: foreach (split ("\n", $$data)) {
795: $count+=int(length($_)/79);
796: $count++;
797: if (length($_) > $maxlength) { $maxlength = length($_); }
798: }
799: my $rows = $count;
800: my $cols = $maxlength;
801: return ($rows,$cols);
1.25 albertel 802: }
803:
1.32 albertel 804: sub editline {
1.31 matthew 805: my ($tag,$data,$description,$size)=@_;
1.81 albertel 806: $data=&HTML::Entities::encode($data,'<>&"');
1.112 albertel 807: if ($description) { $description=$description."<br />"; }
1.98 albertel 808: my $change_code = &element_change_detection();
1.31 matthew 809: my $result = <<"END";
810: $description
811: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
1.98 albertel 812: value="$data" size="$size" $change_code />
1.31 matthew 813: END
814: return $result;
815: }
816:
1.2 albertel 817: sub editfield {
1.82 www 818: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22 albertel 819:
1.63 albertel 820: my ($rows,$cols)=&textarea_sizes(\$data);
1.128 raeburn 821: my $textareaclass;
822:
823: if (&Apache::lonhtmlcommon::htmlareabrowser() && $usehtmlarea) {
1.84 www 824: $rows+=7; # make room for HTMLarea
825: $minheight+=7; # make room for HTMLarea
1.128 raeburn 826: $textareaclass = ' class="LC_richDefaultOff"';
1.84 www 827: }
1.63 albertel 828: if ($cols > 80) { $cols = 80; }
829: if ($cols < $minwidth ) { $cols = $minwidth; }
830: if ($rows < $minheight) { $rows = $minheight; }
1.112 albertel 831: if ($description) { $description=$description."<br />"; }
1.128 raeburn 832:
1.105 albertel 833: # remove typesetting whitespace from between data and the end tag
834: # to make the edit look prettier
835: $data =~ s/\n?[ \t]*$//;
836:
1.135 bisitz 837: return $description."\n".'<textarea style="width:99%" rows="'.$rows.
1.63 albertel 838: '" cols="'.$cols.'" name="homework_edit_'.
1.82 www 839: $Apache::lonxml::curdepth.'" id="homework_edit_'.
1.128 raeburn 840: $Apache::lonxml::curdepth.'" '.&element_change_detection().
841: $textareaclass.'>'.
1.85 www 842: &HTML::Entities::encode($data,'<>&"').'</textarea>'.
843: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
844: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2 albertel 845: }
846:
847: sub modifiedfield {
1.70 albertel 848: my ($endtag,$parser) = @_;
1.63 albertel 849: my $result;
1.92 albertel 850: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70 albertel 851: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
852: # textareas throw away intial \n
1.105 albertel 853: if ($bodytext=~/^\n/) {
854: $result="\n".$result;
855: }
856: # if there is typesetting whitespace from between the data and the end tag
857: # restore to keep the source looking pretty
858: if ($bodytext =~ /(\n?[ \t]*)$/) {
859: $result .= $1;
860: }
1.63 albertel 861: return $result;
1.2 albertel 862: }
863:
1.15 albertel 864: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 865: # side-effects, will modify the $token if new values are found
866: sub get_new_args {
1.61 albertel 867: my ($token,$parstack,$safeeval,@args)=@_;
868: my $rebuild=0;
869: foreach my $arg (@args) {
1.63 albertel 870: #just want the string that it was set to
871: my $value=$token->[2]->{$arg};
872: my $element=&html_element_name($arg);
1.92 albertel 873: my $newvalue=$env{"form.$element"};
1.63 albertel 874: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
875: if (defined($newvalue) && $value ne $newvalue) {
876: if (ref($newvalue) eq 'ARRAY') {
877: $token->[2]->{$arg}=join(',',@$newvalue);
878: } else {
879: $token->[2]->{$arg}=$newvalue;
880: }
1.79 albertel 881: $rebuild=1;
1.111 albertel 882: # add new attributes to the of the attribute seq
883: if (!grep { $arg eq $_ } (@{ $token->[3] })) {
884: push(@{ $token->[3] },$arg);
885: }
1.79 albertel 886: } elsif (!defined($newvalue) && defined($value)) {
887: delete($token->[2]->{$arg});
1.63 albertel 888: $rebuild=1;
1.61 albertel 889: }
1.12 albertel 890: }
1.63 albertel 891: return $rebuild;
1.12 albertel 892: }
893:
1.15 albertel 894: # looks for /> on start tags
1.12 albertel 895: sub rebuild_tag {
1.63 albertel 896: my ($token) = @_;
897: my $result;
898: if ($token->[0] eq 'S') {
899: $result = '<'.$token->[1];
1.109 albertel 900: foreach my $attribute (@{ $token->[3] }) {
901: my $value = $token->[2]{$attribute};
1.111 albertel 902: next if ($value eq '');
1.109 albertel 903: $value =~s/^\s+|\s+$//g;
904: $value =~s/\"//g;
905: &Apache::lonxml::debug("setting :$attribute: to :$value:");
906: $result.=' '.$attribute.'="'.$value.'"';
1.63 albertel 907: }
908: if ($token->[4] =~ m:/>$:) {
909: $result.=' />';
910: } else {
911: $result.='>';
912: }
913: } elsif ( $token->[0] eq 'E' ) {
914: $result = '</'.$token->[1].'>';
1.12 albertel 915: }
1.63 albertel 916: return $result;
1.12 albertel 917: }
1.13 albertel 918:
1.47 matthew 919: sub html_element_name {
920: my ($name) = @_;
1.48 albertel 921: return $name.'_'.$Apache::lonxml::curdepth;
922: }
923:
924: sub hidden_arg {
925: my ($name,$token) = @_;
926: my $result;
927: my $arg=$token->[2]{$name};
928: $result='<input name="'.&html_element_name($name).
929: '" type="hidden" value="'.$arg.'" />';
1.61 albertel 930: return $result;
931: }
932:
933: sub checked_arg {
934: my ($description,$name,$list,$token) = @_;
935: my $result;
936: my $optionlist="";
937: my $allselected=$token->[2]{$name};
1.71 www 938: $result=&mt($description);
1.61 albertel 939: foreach my $option (@$list) {
940: my ($value,$text);
941: if ( ref($option) eq 'ARRAY') {
942: $value='value="'.$$option[0].'"';
943: $text=$$option[1];
944: $option=$$option[0];
945: } else {
946: $text=$option;
947: $value='value="'.$option.'"';
948: }
1.119 raeburn 949: $result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
950: &html_element_name($name).'"';
1.61 albertel 951: foreach my $selected (split(/,/,$allselected)) {
952: if ( $selected eq $option ) {
1.119 raeburn 953: $result.=' checked="checked" ';
1.61 albertel 954: last;
955: }
956: }
1.119 raeburn 957: $result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
1.61 albertel 958: }
1.48 albertel 959: return $result;
1.47 matthew 960: }
961:
1.13 albertel 962: sub text_arg {
1.140 foxr 963: my ($description,$name,$token,$size, $class) = @_;
1.63 albertel 964: my $result;
965: if (!defined $size) { $size=20; }
966: my $arg=$token->[2]{$name};
1.71 www 967: $result=&mt($description).' <input name="'.&html_element_name($name).
1.140 foxr 968: '" type="text" value="'.$arg.'" size="'.$size.'" ';
969: if (defined $class) {
970: $result .= 'class="' . $class . '" ';
971: }
972: $result .= &element_change_detection().'/>';
1.119 raeburn 973: return '<span class="LC_nobreak">'.$result.'</span>';
1.13 albertel 974: }
975:
976: sub select_arg {
1.39 albertel 977: my ($description,$name,$list,$token) = @_;
978: my $result;
979: my $optionlist="";
980: my $selected=$token->[2]{$name};
1.121 raeburn 981: if (ref($list) eq 'ARRAY') {
982: foreach my $option (@{$list}) {
983: my ($text,$value);
984: if (ref($option) eq 'ARRAY') {
985: $value='value="'.&HTML::Entities::encode($option->[0]).'"';
986: $text=$option->[1];
987: $option=$option->[0];
988: } else {
989: $text=$option;
990: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
991: }
992: if ( $selected eq $option ) {
993: $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
994: } else {
995: $optionlist.="<option $value >".&mt($text)."</option>\n";
996: }
997: }
1.13 albertel 998: }
1.120 bisitz 999: $result.='<span class="LC_nobreak">'.&mt($description).' <select name="'.
1.98 albertel 1000: &html_element_name($name).'" '.&element_change_detection().' >
1.13 albertel 1001: '.$optionlist.'
1.119 raeburn 1002: </select></span>';
1.39 albertel 1003: return $result;
1.13 albertel 1004: }
1005:
1.19 albertel 1006: sub select_or_text_arg {
1.39 albertel 1007: my ($description,$name,$list,$token,$size) = @_;
1008: my $result;
1009: my $optionlist="";
1010: my $found=0;
1011: my $selected=$token->[2]{$name};
1.121 raeburn 1012: if (ref($list) eq 'ARRAY') {
1013: foreach my $option (@{$list}) {
1014: my ($text,$value);
1015: if (ref($option) eq 'ARRAY') {
1016: $value='value="'.&HTML::Entities::encode($option->[0]).'"';
1017: $text=$option->[1];
1018: $option=$option->[0];
1019: } else {
1020: $text=$option;
1021: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
1022: }
1023: if ( $selected eq $option ) {
1024: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
1025: $found=1;
1026: } else {
1027: $optionlist.="<option $value>$text</option>\n";
1028: }
1029: }
1.39 albertel 1030: }
1.60 www 1031: $optionlist.="<option value=\"TYPEDINVALUE\"".
1.88 albertel 1032: ((!$found)?' selected="selected"':'').
1.73 www 1033: ">".&mt('Type-in value')."</option>\n";
1.60 www 1034: #
1.98 albertel 1035: my $change_code=&element_change_detection();
1.60 www 1036: my $element=&html_element_name($name);
1037: my $selectelement='select_list_'.$element;
1038: my $typeinelement='type_in_'.$element;
1039: my $typeinvalue=($found?'':$selected);
1040: #
1041: my $hiddenvalue='this.form.'.$element.'.value';
1042: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
1043: my $selectedvalue='this.form.'.$selectelement.
1044: '.options['.$selectedindex.'].value';
1045: my $typedinvalue='this.form.'.$typeinelement.'.value';
1046: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71 www 1047: $description=&mt($description);
1.60 www 1048: #
1049: return (<<ENDSELECTORTYPE);
1.119 raeburn 1050: <span class="LC_nobreak">
1.60 www 1051: $description
1052: <select name="$selectelement"
1.74 albertel 1053: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60 www 1054: $optionlist
1055: </select>
1056: <input type="text" size="$size" name="$typeinelement"
1057: value="$typeinvalue"
1058: onChange="$hiddenvalue=$typedinvalue;"
1059: onFocus="$selectedindex=$selecttypeinindex-1;" />
1.98 albertel 1060: <input type="hidden" name="$element" value="$selected" $change_code />
1.119 raeburn 1061: </span>
1.60 www 1062: ENDSELECTORTYPE
1.19 albertel 1063: }
1.29 matthew 1064:
1.49 www 1065: #----------------------------------------------------- image coordinates
1066: # single image coordinates, x, y
1067: sub entercoords {
1.80 albertel 1068: my ($idx,$idy,$mode,$width,$height) = @_;
1.49 www 1069: unless ($Apache::edit::bgimgsrc) { return ''; }
1070: if ($idx) { $idx.='_'; }
1071: if ($idy) { $idy.='_'; }
1.102 www 1072: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49 www 1073: my $form = 'lonhomework';
1074: my $element;
1075: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1076: $element = &escape("$Apache::lonxml::curdepth");
1.49 www 1077: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1078: $element = &escape('homework_edit_'.
1.49 www 1079: $Apache::lonxml::curdepth);
1080: }
1.80 albertel 1081: my $id=$Apache::lonxml::curdepth;
1082: my %data=("imagechoice.$id.type" =>'point',
1083: "imagechoice.$id.formname" =>$form,
1084: "imagechoice.$id.formx" =>"$idx$element",
1085: "imagechoice.$id.formy" =>"$idy$element",
1086: "imagechoice.$id.file" =>$bgfile,
1087: "imagechoice.$id.formcoord" =>$element);
1.49 www 1088: if ($height) {
1.80 albertel 1089: $data{"imagechoice.$id.formheight"}=$height.'_'.
1090: $Apache::edit::bgimgsrccurdepth;
1.49 www 1091: }
1092: if ($width) {
1.80 albertel 1093: $data{"imagechoice.$id.formwidth"}=$width.'_'.
1094: $Apache::edit::bgimgsrccurdepth;
1.49 www 1095: }
1.114 raeburn 1096: &Apache::lonnet::appenv(\%data);
1.80 albertel 1097: my $text="Click Coordinates";
1098: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 1099: return $result;
1100: }
1101:
1.77 albertel 1102: # coordinates (x1,y1)-(x2,y2)...
1103: # mode can be either box, or polygon
1104: sub entercoord {
1105: my ($idx,$mode,$width,$height,$type) = @_;
1.49 www 1106: unless ($Apache::edit::bgimgsrc) { return ''; }
1.102 www 1107: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75 albertel 1108: my $form = 'lonhomework';
1109: my $element;
1110: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1111: $element = &escape("$idx\_$Apache::lonxml::curdepth");
1.75 albertel 1112: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1113: $element = &escape('homework_edit_'.
1.75 albertel 1114: $Apache::lonxml::curdepth);
1115: }
1.76 albertel 1116: my $id=$Apache::lonxml::curdepth;
1.77 albertel 1117: my %data=("imagechoice.$id.type" =>$type,
1.76 albertel 1118: "imagechoice.$id.formname" =>$form,
1119: "imagechoice.$id.file" =>$bgfile,
1120: "imagechoice.$id.formcoord" =>$element);
1.75 albertel 1121: if ($height) {
1.76 albertel 1122: $data{"imagechoice.$id.formheight"}=$height.'_'.
1123: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 1124: }
1125: if ($width) {
1.76 albertel 1126: $data{"imagechoice.$id.formwidth"}=$width.'_'.
1127: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 1128: }
1.114 raeburn 1129: &Apache::lonnet::appenv(\%data);
1.77 albertel 1130: my $text="Enter Coordinates";
1131: if ($type eq 'polygon') { $text='Create Polygon Data'; }
1132: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 1133: return $result;
1134: }
1.76 albertel 1135:
1136: sub deletecoorddata {
1.122 raeburn 1137: &Apache::lonnet::delenv('imagechoice.');
1.76 albertel 1138: }
1139:
1.29 matthew 1140: #----------------------------------------------------- browse
1141: sub browse {
1142: # insert a link to call up the filesystem browser (lonindexer)
1.107 banghart 1143: my ($id, $mode, $titleid, $only) = @_;
1.29 matthew 1144: my $form = 'lonhomework';
1.42 matthew 1145: my $element;
1146: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1147: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.42 matthew 1148: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1149: $element = &escape('homework_edit_'.
1.68 albertel 1150: $Apache::lonxml::curdepth);
1151: }
1152: my $titleelement;
1153: if ($titleid) {
1.107 banghart 1154: $titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.108 banghart 1155: } else {
1156: $titleelement=",'$only'";
1.42 matthew 1157: }
1.29 matthew 1158: my $result = <<"ENDBUTTON";
1.68 albertel 1159: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29 matthew 1160: ENDBUTTON
1161: return $result;
1162: }
1163:
1.30 matthew 1164: #----------------------------------------------------- browse
1165: sub search {
1166: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 1167: my ($id, $mode, $titleid) = @_;
1.30 matthew 1168: my $form = 'lonhomework';
1.49 www 1169: my $element;
1170: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1171: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.49 www 1172: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1173: $element = &escape('homework_edit_'.
1.49 www 1174: $Apache::lonxml::curdepth);
1175: }
1.68 albertel 1176: my $titleelement;
1177: if ($titleid) {
1.102 www 1178: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.68 albertel 1179: }
1.30 matthew 1180: my $result = <<"ENDBUTTON";
1.68 albertel 1181: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30 matthew 1182: ENDBUTTON
1183: return $result;
1184: }
1185:
1186:
1.1 albertel 1187: 1;
1188: __END__
1.26 harris41 1189:
1190:
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