Annotation of loncom/homework/edit.pm, revision 1.123
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
1.25 albertel 3: #
1.123 ! www 4: # $Id: edit.pm,v 1.122 2009/02/18 07:06:12 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:
1.117 jms 29: =head1 NAME
30:
31: Apache::edit - edit mode helpers
32:
33: =head1 SYNOPSIS
34:
35: Invoked by many homework and xml related modules.
36:
37: &Apache::edit::SUBROUTINENAME(ARGUMENTS);
38:
39: =head1 INTRODUCTION
40:
41: This module outputs HTML syntax helpful for the rendering of edit
42: mode interfaces.
43:
44: This is part of the LearningOnline Network with CAPA project
45: described at http://www.lon-capa.org.
46:
1.118 jms 47: =head1 SUBROUTINES
1.117 jms 48:
49: =over 4
50:
1.118 jms 51: =item initialize_edit()
1.117 jms 52:
1.118 jms 53: initialize edit (set colordepth to zero)
1.117 jms 54:
1.118 jms 55: =item tag_start($target,$token,$description)
1.117 jms 56:
1.118 jms 57: provide deletion and insertion lists
1.117 jms 58: for the manipulation of a start tag; return a scalar string
59:
1.118 jms 60: =item tag_end($target,$token,$description)
1.117 jms 61:
1.118 jms 62: ending syntax corresponding to
1.117 jms 63: &tag_start. return a scalar string.
64:
1.118 jms 65: =item start_table($token)
1.117 jms 66:
1.118 jms 67: start table; update colordepth; return scalar string.
1.117 jms 68:
1.118 jms 69: =item end_table()
1.117 jms 70:
1.118 jms 71: reduce color depth; end table; return scalar string
1.117 jms 72:
1.118 jms 73: =item start_spanning_row()
1.117 jms 74:
1.118 jms 75: start a new table row spanning the 'edit' environment.
1.117 jms 76:
1.118 jms 77: =item start_row()
1.117 jms 78:
1.118 jms 79: start a new table row and element.
1.117 jms 80:
1.118 jms 81: =item end_row()
1.117 jms 82:
1.118 jms 83: end current table element and row.
1.117 jms 84:
1.118 jms 85: =item movebuttons($target,$token)
1.117 jms 86:
1.118 jms 87: move-up and move-down buttons; return scalar string
1.117 jms 88:
1.118 jms 89: =item deletelist($target,$token)
1.117 jms 90:
1.118 jms 91: provide a yes option in an HTML select element; return scalar string
1.117 jms 92:
1.118 jms 93: =item handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
94: $style)
1.117 jms 95:
1.118 jms 96: respond to a user delete request by passing relevant stack
1.117 jms 97: and array information to various rendering functions; return a scalar string
98:
1.118 jms 99: =item get_insert_list($token)
100:
101: provide an insertion list based on possibilities from lonxml; return a scalar string
1.117 jms 102:
1.118 jms 103: =item insertlist($target,$token)
1.117 jms 104:
1.118 jms 105: api that uses get_insert_list; return a scalar string
1.117 jms 106:
1.118 jms 107: =item handleinsert($token)
1.117 jms 108:
1.118 jms 109: provide an insertion list based on possibilities from lonxml; return a scalar string
1.117 jms 110:
1.118 jms 111: =item get_insert_list($token)
1.117 jms 112:
1.118 jms 113: provide an insertion list based on possibilities from lonxml; return a scalar string
1.117 jms 114:
1.118 jms 115: =item browse($elementname)
1.117 jms 116:
1.118 jms 117: provide a link which will open up the filesystem browser (lonindexer) and, once a file is selected, place the result in the form element $elementname.
1.117 jms 118:
1.118 jms 119: =item search($elementname)
1.117 jms 120:
1.118 jms 121: 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.
122:
123: =item editline(tag,data,description,size)
124:
125: 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 126:
127: =back
128:
129: =cut
130:
1.1 albertel 131: package Apache::edit;
132:
133: use strict;
1.92 albertel 134: use Apache::lonnet;
1.32 albertel 135: use HTML::Entities();
1.71 www 136: use Apache::lonlocal;
1.102 www 137: use lib '/home/httpd/lib/perl/';
138: use LONCAPA;
139:
1.1 albertel 140:
1.10 albertel 141: # Global Vars
142: # default list of colors to use in editing
143: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
144: # depth of nesting of edit
145: $Apache::edit::colordepth=0;
1.38 www 146: @Apache::edit::inserttag=();
1.49 www 147: # image-type responses: active background image and curdepth at definition
148: $Apache::edit::bgimgsrc='';
149: $Apache::edit::bgimgsrccurdepth='';
1.10 albertel 150:
151: sub initialize_edit {
1.63 albertel 152: $Apache::edit::colordepth=0;
153: @Apache::edit::inserttag=();
1.10 albertel 154: }
155:
1.1 albertel 156: sub tag_start {
1.63 albertel 157: my ($target,$token,$description) = @_;
158: my $result='';
159: if ($target eq "edit") {
160: my $tag=$token->[1];
161: if (!$description) {
162: $description=&Apache::lonxml::description($token);
163: if (!$description) { $description="<$tag>"; }
164: }
165: $result.= &start_table($token)."<tr><td>$description</td>
1.116 bisitz 166: <td>".&mt('Delete?').' '.
1.63 albertel 167: &deletelist($target,$token)
168: ."</td>
169: <td>".
170: &insertlist($target,$token);
1.27 matthew 171: #<td>".
1.22 albertel 172: # &movebuttons($target,$token).
173: # "</tr><tr><td colspan=\"3\">\n";
1.66 matthew 174: my @help = Apache::lonxml::helpinfo($token);
1.63 albertel 175: if ($help[0]) {
1.88 albertel 176: $result .= '</td><td align="right" valign="top">' .
177: Apache::loncommon::help_open_topic(@help);
178: } else { $result .= "</td><td> "; }
1.63 albertel 179: $result .= &end_row().&start_spanning_row();
180: }
181: return $result;
1.1 albertel 182: }
183:
184: sub tag_end {
1.63 albertel 185: my ($target,$token,$description) = @_;
186: my $result='';
187: if ($target eq 'edit') {
188: $result.="</td></tr>".&end_table()."\n";
189: }
190: return $result;
1.4 albertel 191: }
1.1 albertel 192:
1.10 albertel 193: sub start_table {
1.63 albertel 194: my ($token)=@_;
1.104 albertel 195: my $tag = &Apache::lonxml::get_tag($token);
196:
197: my $color = $Apache::lonxml::insertlist{"$tag.color"};
198: &Apache::lonxml::debug(" $tag -- $color");
1.63 albertel 199: if (!defined($color)) {
200: $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
201: }
202: $Apache::edit::colordepth++;
203: push(@Apache::edit::inserttag,$token->[1]);
204: my $result='<div align="right">';
205: $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="5" cellpadding="3">';
206: return $result;
1.10 albertel 207: }
208:
209: sub end_table {
1.63 albertel 210: $Apache::edit::colordepth--;
211: my $result='</table></div>';
1.94 albertel 212: $result.='<div align="left"><table><tr><td>';
1.63 albertel 213:
214: my ($tagname,$closingtag);
215: if (defined($Apache::edit::inserttag[-2])) {
216: $tagname=$Apache::edit::inserttag[-2];
1.105 albertel 217: } else {
218: if ($Apache::lonhomework::parsing_a_task) {
219: $tagname='Task';
220: } else {
221: $tagname='problem';
222: }
223: }
1.63 albertel 224: if (defined($Apache::edit::inserttag[-1])) {
225: $closingtag=$Apache::edit::inserttag[-1];
226: }
227: $result.=&innerinsertlist('edit',$tagname,$closingtag).
1.94 albertel 228: "</td></tr></table></div>";
1.105 albertel 229: my $last = pop(@Apache::edit::inserttag);
1.63 albertel 230: return $result;
1.10 albertel 231: }
232:
1.115 raeburn 233: sub start_spanning_row { return '<tr><td colspan="5" bgcolor="#DDDDDD">';}
1.41 www 234: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
1.27 matthew 235: sub end_row { return '</td></tr>'; }
236:
1.22 albertel 237: sub movebuttons {
1.63 albertel 238: my ($target,$token) = @_;
239: my $result='<input type="submit" name="moveup.'.
240: $Apache::lonxml::curdepth.'" value="Move Up" />';
241: $result.='<input type="submit" name="movedown.'.
242: $Apache::lonxml::curdepth.'" value="Move Down" />';
243: return $result;
1.22 albertel 244: }
245:
1.8 albertel 246: sub deletelist {
1.63 albertel 247: my ($target,$token) = @_;
248: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14 albertel 249: <option></option>
1.116 bisitz 250: <option>".&mt('yes')."</option>
1.8 albertel 251: </select>";
1.63 albertel 252: return $result;
1.8 albertel 253: }
254:
1.14 albertel 255: sub handle_delete {
1.92 albertel 256: if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
1.63 albertel 257: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
258: my $result=0;
259: if ($space) {
260: my $sub1="$space\:\:delete_$token->[1]";
261: {
262: no strict 'refs';
263: if (defined &$sub1) {
264: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
265: }
266: }
267: }
268: if (!$result) {
269: my $endtag='/'.$token->[1];
1.97 albertel 270: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style);
1.63 albertel 271: $$parser['-1']->get_token();
272: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
273: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
274: }
275: return 1;
1.14 albertel 276: }
277:
1.7 albertel 278: sub get_insert_list {
1.63 albertel 279: my ($tagname) = @_;
280: my $result='';
1.104 albertel 281: my @tags= ();
1.63 albertel 282: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
283: if ($Apache::lonxml::insertlist{"$tagname.which"}) {
1.104 albertel 284: push (@tags, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
1.63 albertel 285: }
286: foreach my $namespace (@Apache::lonxml::namespace) {
287: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
1.104 albertel 288: push (@tags, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
1.63 albertel 289: }
290: }
1.104 albertel 291: if (@tags) {
1.63 albertel 292: my %options;
1.104 albertel 293: foreach my $tag (@tags) {
294: my $descrip=$Apache::lonxml::insertlist{"$tag.description"};
295: my $tagnum =$Apache::lonxml::insertlist{"$tag.num"};
1.63 albertel 296: $options{$descrip} ="<option value=\"$tagnum\">".
297: $descrip."</option>\n";
298: }
299: foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
1.88 albertel 300: if ($result) { $result='<option selected="selected"></option>'.$result; }
1.63 albertel 301: }
302: return $result;
1.5 albertel 303: }
304:
1.4 albertel 305: sub insertlist {
1.63 albertel 306: my ($target,$token) = @_;
307: return &innerinsertlist($target,$token->[1]);
1.38 www 308: }
309:
310: sub innerinsertlist {
1.63 albertel 311: my ($target,$tagname,$closingtag) = @_;
312: my $result;
313: my $after='';
314: if ($closingtag) {
315: $after='_after_'.$closingtag;
316: }
317: if ($target eq 'edit') {
318: my $optionlist= &get_insert_list($tagname);
319: if ($optionlist) {
1.116 bisitz 320: $result = &mt('Insert:')."
1.63 albertel 321: <select name=\"insert$after\_$Apache::lonxml::curdepth\">
322: $optionlist
323: </select>"
324: } else {
325: $result=" ";
326: }
1.6 albertel 327: }
1.63 albertel 328: return $result;
1.6 albertel 329: }
330:
1.7 albertel 331: sub handle_insert {
1.92 albertel 332: if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
333: my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"};
1.104 albertel 334: return &do_insert($tagnum);
1.38 www 335: }
336:
337: sub handle_insertafter {
1.63 albertel 338: my $tagname=shift;
1.104 albertel 339: if ($env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '') {
340: return '';
341: }
342: my $tagnum =$env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
1.105 albertel 343: return &do_insert($tagnum,1);
1.104 albertel 344: }
345:
346: sub do_insert {
1.105 albertel 347: my ($tagnum,$after) = @_;
1.63 albertel 348: my $result;
1.104 albertel 349:
350: my $newtag = $Apache::lonxml::insertlist{"$tagnum.tag"};
351: my $func = $Apache::lonxml::insertlist{"$newtag.function"};
1.63 albertel 352: if ($func eq 'default') {
353: my $namespace;
354: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
1.105 albertel 355: my $depth = scalar(@Apache::lonxml::depthcounter);
356: $depth -- if ($after);
357: my $inset = "\t"x$depth;
358: $result.="\n$inset<$newtag>\n$inset</$newtag>";
1.38 www 359: } else {
1.63 albertel 360: if (defined(&$func)) {
361: {
362: no strict 'refs';
363: $result.=&$func();
364: }
365: } else {
1.104 albertel 366: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined. ($tagnum)");
1.63 albertel 367: }
1.5 albertel 368: }
1.63 albertel 369: return $result;
1.69 albertel 370: }
371:
372: sub insert_img {
373: return '
374: <img />';
1.16 albertel 375: }
376:
377: sub insert_responseparam {
1.63 albertel 378: return '
1.16 albertel 379: <responseparam />';
1.5 albertel 380: }
381:
1.87 albertel 382: sub insert_parameter {
383: return '
384: <parameter />';
385: }
386:
1.24 albertel 387: sub insert_formularesponse {
1.63 albertel 388: return '
1.24 albertel 389: <formularesponse answer="" samples="">
1.86 albertel 390: <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
391: <textline size="25"/>
1.24 albertel 392: <hintgroup>
1.78 www 393: <startouttext /><endouttext />
1.24 albertel 394: </hintgroup>
395: </formularesponse>';
396: }
397:
1.15 albertel 398: sub insert_numericalresponse {
1.63 albertel 399: return '
1.15 albertel 400: <numericalresponse answer="">
1.90 www 401: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
402: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
1.15 albertel 403: <textline />
404: <hintgroup>
1.78 www 405: <startouttext /><endouttext />
1.15 albertel 406: </hintgroup>
407: </numericalresponse>';
408: }
409:
1.96 albertel 410: sub insert_customresponse {
1.95 albertel 411: return '
1.96 albertel 412: <customresponse>
1.95 albertel 413: <answer type="loncapa/perl">
414: </answer>
415: <textline />
416: <hintgroup>
417: <startouttext /><endouttext />
418: </hintgroup>
1.96 albertel 419: </customresponse>';
1.95 albertel 420: }
421:
1.96 albertel 422: sub insert_customresponse_answer {
1.95 albertel 423: return '
424: <answer type="loncapa/perl">
425: </answer>
426: ';
427: }
428:
1.106 albertel 429: sub insert_customhint {
430: return '
431: <customhint>
432: <answer type="loncapa/perl">
433: </answer>
434: </customhint>';
435: }
436:
437: sub insert_customhint_answer {
438: return '
439: <answer type="loncapa/perl">
440: </answer>
441: ';
442: }
443:
444: sub insert_mathresponse {
445: return '
446: <mathresponse>
447: <answer>
448: </answer>
449: <textline />
450: <hintgroup>
451: <startouttext />
452: <endouttext />
453: </hintgroup>
454: </mathresponse>';
455: }
456:
457: sub insert_mathresponse_answer {
458: return '
459: <answer>
460: </answer>
461: ';
462: }
463:
464: sub insert_mathhint {
465: return '
466: <mathhint>
467: <answer>
468: </answer>
469: </mathhint>';
470: }
471:
472: sub insert_mathhint_answer {
473: return '
474: <answer>
475: </answer>
476: ';
477: }
478:
1.18 albertel 479: sub insert_stringresponse {
1.63 albertel 480: return '
1.18 albertel 481: <stringresponse answer="" type="">
482: <textline />
483: <hintgroup>
1.78 www 484: <startouttext /><endouttext />
1.18 albertel 485: </hintgroup>
486: </stringresponse>';
1.36 albertel 487: }
488:
489: sub insert_essayresponse {
1.63 albertel 490: return '
1.36 albertel 491: <essayresponse>
492: <textfield></textfield>
493: </essayresponse>';
1.54 albertel 494: }
495:
496: sub insert_imageresponse {
1.63 albertel 497: return '
1.54 albertel 498: <imageresponse max="1">
499: <foilgroup>
1.89 albertel 500: <foil>
501: </foil>
1.54 albertel 502: </foilgroup>
503: <hintgroup>
1.78 www 504: <startouttext /><endouttext />
1.54 albertel 505: </hintgroup>
506: </imageresponse>';
1.18 albertel 507: }
508:
1.7 albertel 509: sub insert_optionresponse {
1.63 albertel 510: return '
1.7 albertel 511: <optionresponse max="10">
512: <foilgroup options="">
1.89 albertel 513: <foil>
514: <startouttext /><endouttext />
515: </foil>
1.7 albertel 516: </foilgroup>
1.14 albertel 517: <hintgroup>
1.78 www 518: <startouttext /><endouttext />
1.14 albertel 519: </hintgroup>
1.7 albertel 520: </optionresponse>';
1.1 albertel 521: }
522:
1.72 albertel 523: sub insert_organicresponse {
524: return '
525: <organicresponse>
526: <textline />
527: <hintgroup>
1.78 www 528: <startouttext /><endouttext />
1.72 albertel 529: </hintgroup>
530: </organicresponse>';
531: }
532:
533: sub insert_organicstructure {
534: return '
535: <organicstructure />
536: ';
537: }
538:
1.23 albertel 539: sub insert_radiobuttonresponse {
1.63 albertel 540: return '
1.23 albertel 541: <radiobuttonresponse max="10">
542: <foilgroup>
1.89 albertel 543: <foil>
544: <startouttext /><endouttext />
545: </foil>
1.23 albertel 546: </foilgroup>
547: <hintgroup>
1.78 www 548: <startouttext /><endouttext />
1.23 albertel 549: </hintgroup>
550: </radiobuttonresponse>';
1.72 albertel 551: }
552:
553: sub insert_reactionresponse {
554: return '
555: <reactionresponse>
556: <textline />
557: <hintgroup>
1.78 www 558: <startouttext /><endouttext />
1.72 albertel 559: </hintgroup>
560: </reactionresponse>';
1.43 albertel 561: }
562:
563: sub insert_rankresponse {
1.63 albertel 564: return '
1.43 albertel 565: <rankresponse max="10">
566: <foilgroup options="">
1.89 albertel 567: <foil>
568: <startouttext /><endouttext />
569: </foil>
1.43 albertel 570: </foilgroup>
571: <hintgroup>
1.78 www 572: <startouttext /><endouttext />
1.43 albertel 573: </hintgroup>
574: </rankresponse>';
1.23 albertel 575: }
576:
1.44 albertel 577: sub insert_matchresponse {
1.63 albertel 578: return '
1.44 albertel 579: <matchresponse max="10">
580: <foilgroup options="">
581: <itemgroup>
582: </itemgroup>
1.89 albertel 583: <foil>
584: <startouttext /><endouttext />
585: </foil>
1.44 albertel 586: </foilgroup>
587: <hintgroup>
1.78 www 588: <startouttext /><endouttext />
1.44 albertel 589: </hintgroup>
590: </matchresponse>';
591: }
592:
1.21 albertel 593: sub insert_displayduedate { return '<displayduedate />'; }
594: sub insert_displaytitle { return '<displaytitle />'; }
1.22 albertel 595: sub insert_hintpart {
1.63 albertel 596: return '
1.22 albertel 597: <hintpart on="default">
1.90 www 598: <startouttext/><endouttext />
1.22 albertel 599: </hintpart>';
1.67 albertel 600: }
601:
602: sub insert_hintgroup {
603: return '
604: <hintgroup>
1.78 www 605: <startouttext /><endouttext />
1.67 albertel 606: </hintgroup>';
1.22 albertel 607: }
608:
609: sub insert_numericalhint {
1.63 albertel 610: return '
1.22 albertel 611: <numericalhint>
612: </numericalhint>';
1.46 albertel 613: }
614:
1.123 ! www 615: sub insert_reactionhint {
! 616: return '
! 617: <reactionhint>
! 618: </reactionhint>';
! 619: }
! 620:
! 621: sub insert_organichint {
! 622: return '
! 623: <organichint>
! 624: </organichint>';
! 625: }
! 626:
1.46 albertel 627: sub insert_stringhint {
1.63 albertel 628: return '
1.46 albertel 629: <stringhint>
630: </stringhint>';
631: }
632:
633: sub insert_formulahint {
1.63 albertel 634: return '
1.46 albertel 635: <formulahint>
636: </formulahint>';
1.37 albertel 637: }
638:
639: sub insert_radiobuttonhint {
1.63 albertel 640: return '
1.37 albertel 641: <radiobuttonhint>
642: </radiobuttonhint>';
1.50 albertel 643: }
644:
645: sub insert_optionhint {
1.63 albertel 646: return '
1.50 albertel 647: <optionhint>
648: </optionhint>';
1.22 albertel 649: }
1.21 albertel 650:
1.23 albertel 651: sub insert_startouttext {
1.78 www 652: return "<startouttext /><endouttext />";
1.23 albertel 653: }
654:
655: sub insert_script {
1.78 www 656: return "\n<script type=\"loncapa/perl\"></script>";
1.23 albertel 657: }
658:
1.98 albertel 659: sub js_change_detection {
660: my $unsaved=&mt("There are unsaved changes");
661: return (<<SCRIPT);
662: <script type="text/javascript">
663: var clean = true;
664: var is_submit = false;
1.99 albertel 665: var still_ask = false;
1.98 albertel 666: function compareForm(event_) {
667: if (!event_ && window.event) {
668: event_ = window.event;
669: }
1.99 albertel 670: if ((!is_submit || (is_submit && still_ask)) && !clean) {
671: still_ask = false;
672: is_submit = false;
1.98 albertel 673: event_.returnValue = "$unsaved";
674: return "$unsaved";
675: }
676: }
677: function unClean() {
678: clean=false;
679: }
680: window.onbeforeunload = compareForm;
681: </script>
682: SCRIPT
683: }
684:
685: sub form_change_detection {
686: return ' onsubmit="is_submit=true;" ';
687: }
688:
689: sub element_change_detection {
690: return ' onchange="unClean();" ';
691: }
692:
1.99 albertel 693: sub submit_ask_anyway {
1.113 raeburn 694: my ($extra_action) = @_;
695: return ' onclick="still_ask=true;'.$extra_action.'" ';
1.99 albertel 696: }
697:
1.25 albertel 698: sub textarea_sizes {
1.63 albertel 699: my ($data)=@_;
700: my $count=0;
701: my $maxlength=-1;
702: foreach (split ("\n", $$data)) {
703: $count+=int(length($_)/79);
704: $count++;
705: if (length($_) > $maxlength) { $maxlength = length($_); }
706: }
707: my $rows = $count;
708: my $cols = $maxlength;
709: return ($rows,$cols);
1.25 albertel 710: }
711:
1.32 albertel 712: sub editline {
1.31 matthew 713: my ($tag,$data,$description,$size)=@_;
1.81 albertel 714: $data=&HTML::Entities::encode($data,'<>&"');
1.112 albertel 715: if ($description) { $description=$description."<br />"; }
1.98 albertel 716: my $change_code = &element_change_detection();
1.31 matthew 717: my $result = <<"END";
718: $description
719: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
1.98 albertel 720: value="$data" size="$size" $change_code />
1.31 matthew 721: END
722: return $result;
723: }
724:
1.2 albertel 725: sub editfield {
1.82 www 726: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22 albertel 727:
1.63 albertel 728: my ($rows,$cols)=&textarea_sizes(\$data);
1.84 www 729: if (&Apache::lonhtmlcommon::htmlareabrowser() &&
730: !&Apache::lonhtmlcommon::htmlareablocked()) {
731: $rows+=7; # make room for HTMLarea
732: $minheight+=7; # make room for HTMLarea
733: }
1.63 albertel 734: if ($cols > 80) { $cols = 80; }
735: if ($cols < $minwidth ) { $cols = $minwidth; }
736: if ($rows < $minheight) { $rows = $minheight; }
1.112 albertel 737: if ($description) { $description=$description."<br />"; }
1.82 www 738: if ($usehtmlarea) {
1.101 albertel 739: &Apache::lonhtmlcommon::add_htmlareafields('homework_edit_'.
740: $Apache::lonxml::curdepth);
1.82 www 741: }
1.105 albertel 742: # remove typesetting whitespace from between data and the end tag
743: # to make the edit look prettier
744: $data =~ s/\n?[ \t]*$//;
745:
1.103 albertel 746: return $description."\n".'<textarea style="width:100%" rows="'.$rows.
1.63 albertel 747: '" cols="'.$cols.'" name="homework_edit_'.
1.82 www 748: $Apache::lonxml::curdepth.'" id="homework_edit_'.
1.98 albertel 749: $Apache::lonxml::curdepth.'" '.&element_change_detection().'>'.
1.85 www 750: &HTML::Entities::encode($data,'<>&"').'</textarea>'.
751: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
752: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2 albertel 753: }
754:
755: sub modifiedfield {
1.70 albertel 756: my ($endtag,$parser) = @_;
1.63 albertel 757: my $result;
1.92 albertel 758: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70 albertel 759: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
760: # textareas throw away intial \n
1.105 albertel 761: if ($bodytext=~/^\n/) {
762: $result="\n".$result;
763: }
764: # if there is typesetting whitespace from between the data and the end tag
765: # restore to keep the source looking pretty
766: if ($bodytext =~ /(\n?[ \t]*)$/) {
767: $result .= $1;
768: }
1.63 albertel 769: return $result;
1.2 albertel 770: }
771:
1.15 albertel 772: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 773: # side-effects, will modify the $token if new values are found
774: sub get_new_args {
1.61 albertel 775: my ($token,$parstack,$safeeval,@args)=@_;
776: my $rebuild=0;
777: foreach my $arg (@args) {
1.63 albertel 778: #just want the string that it was set to
779: my $value=$token->[2]->{$arg};
780: my $element=&html_element_name($arg);
1.92 albertel 781: my $newvalue=$env{"form.$element"};
1.63 albertel 782: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
783: if (defined($newvalue) && $value ne $newvalue) {
784: if (ref($newvalue) eq 'ARRAY') {
785: $token->[2]->{$arg}=join(',',@$newvalue);
786: } else {
787: $token->[2]->{$arg}=$newvalue;
788: }
1.79 albertel 789: $rebuild=1;
1.111 albertel 790: # add new attributes to the of the attribute seq
791: if (!grep { $arg eq $_ } (@{ $token->[3] })) {
792: push(@{ $token->[3] },$arg);
793: }
1.79 albertel 794: } elsif (!defined($newvalue) && defined($value)) {
795: delete($token->[2]->{$arg});
1.63 albertel 796: $rebuild=1;
1.61 albertel 797: }
1.12 albertel 798: }
1.63 albertel 799: return $rebuild;
1.12 albertel 800: }
801:
1.15 albertel 802: # looks for /> on start tags
1.12 albertel 803: sub rebuild_tag {
1.63 albertel 804: my ($token) = @_;
805: my $result;
806: if ($token->[0] eq 'S') {
807: $result = '<'.$token->[1];
1.109 albertel 808: foreach my $attribute (@{ $token->[3] }) {
809: my $value = $token->[2]{$attribute};
1.111 albertel 810: next if ($value eq '');
1.109 albertel 811: $value =~s/^\s+|\s+$//g;
812: $value =~s/\"//g;
813: &Apache::lonxml::debug("setting :$attribute: to :$value:");
814: $result.=' '.$attribute.'="'.$value.'"';
1.63 albertel 815: }
816: if ($token->[4] =~ m:/>$:) {
817: $result.=' />';
818: } else {
819: $result.='>';
820: }
821: } elsif ( $token->[0] eq 'E' ) {
822: $result = '</'.$token->[1].'>';
1.12 albertel 823: }
1.63 albertel 824: return $result;
1.12 albertel 825: }
1.13 albertel 826:
1.47 matthew 827: sub html_element_name {
828: my ($name) = @_;
1.48 albertel 829: return $name.'_'.$Apache::lonxml::curdepth;
830: }
831:
832: sub hidden_arg {
833: my ($name,$token) = @_;
834: my $result;
835: my $arg=$token->[2]{$name};
836: $result='<input name="'.&html_element_name($name).
837: '" type="hidden" value="'.$arg.'" />';
1.61 albertel 838: return $result;
839: }
840:
841: sub checked_arg {
842: my ($description,$name,$list,$token) = @_;
843: my $result;
844: my $optionlist="";
845: my $allselected=$token->[2]{$name};
1.71 www 846: $result=&mt($description);
1.61 albertel 847: foreach my $option (@$list) {
848: my ($value,$text);
849: if ( ref($option) eq 'ARRAY') {
850: $value='value="'.$$option[0].'"';
851: $text=$$option[1];
852: $option=$$option[0];
853: } else {
854: $text=$option;
855: $value='value="'.$option.'"';
856: }
1.119 raeburn 857: $result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
858: &html_element_name($name).'"';
1.61 albertel 859: foreach my $selected (split(/,/,$allselected)) {
860: if ( $selected eq $option ) {
1.119 raeburn 861: $result.=' checked="checked" ';
1.61 albertel 862: last;
863: }
864: }
1.119 raeburn 865: $result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
1.61 albertel 866: }
1.48 albertel 867: return $result;
1.47 matthew 868: }
869:
1.13 albertel 870: sub text_arg {
1.63 albertel 871: my ($description,$name,$token,$size) = @_;
872: my $result;
873: if (!defined $size) { $size=20; }
874: my $arg=$token->[2]{$name};
1.71 www 875: $result=&mt($description).' <input name="'.&html_element_name($name).
1.98 albertel 876: '" type="text" value="'.$arg.'" size="'.$size.'" '.
877: &element_change_detection().'/>';
1.119 raeburn 878: return '<span class="LC_nobreak">'.$result.'</span>';
1.13 albertel 879: }
880:
881: sub select_arg {
1.39 albertel 882: my ($description,$name,$list,$token) = @_;
883: my $result;
884: my $optionlist="";
885: my $selected=$token->[2]{$name};
1.121 raeburn 886: if (ref($list) eq 'ARRAY') {
887: foreach my $option (@{$list}) {
888: my ($text,$value);
889: if (ref($option) eq 'ARRAY') {
890: $value='value="'.&HTML::Entities::encode($option->[0]).'"';
891: $text=$option->[1];
892: $option=$option->[0];
893: } else {
894: $text=$option;
895: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
896: }
897: if ( $selected eq $option ) {
898: $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
899: } else {
900: $optionlist.="<option $value >".&mt($text)."</option>\n";
901: }
902: }
1.13 albertel 903: }
1.120 bisitz 904: $result.='<span class="LC_nobreak">'.&mt($description).' <select name="'.
1.98 albertel 905: &html_element_name($name).'" '.&element_change_detection().' >
1.13 albertel 906: '.$optionlist.'
1.119 raeburn 907: </select></span>';
1.39 albertel 908: return $result;
1.13 albertel 909: }
910:
1.19 albertel 911: sub select_or_text_arg {
1.39 albertel 912: my ($description,$name,$list,$token,$size) = @_;
913: my $result;
914: my $optionlist="";
915: my $found=0;
916: my $selected=$token->[2]{$name};
1.121 raeburn 917: if (ref($list) eq 'ARRAY') {
918: foreach my $option (@{$list}) {
919: my ($text,$value);
920: if (ref($option) eq 'ARRAY') {
921: $value='value="'.&HTML::Entities::encode($option->[0]).'"';
922: $text=$option->[1];
923: $option=$option->[0];
924: } else {
925: $text=$option;
926: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
927: }
928: if ( $selected eq $option ) {
929: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
930: $found=1;
931: } else {
932: $optionlist.="<option $value>$text</option>\n";
933: }
934: }
1.39 albertel 935: }
1.60 www 936: $optionlist.="<option value=\"TYPEDINVALUE\"".
1.88 albertel 937: ((!$found)?' selected="selected"':'').
1.73 www 938: ">".&mt('Type-in value')."</option>\n";
1.60 www 939: #
1.98 albertel 940: my $change_code=&element_change_detection();
1.60 www 941: my $element=&html_element_name($name);
942: my $selectelement='select_list_'.$element;
943: my $typeinelement='type_in_'.$element;
944: my $typeinvalue=($found?'':$selected);
945: #
946: my $hiddenvalue='this.form.'.$element.'.value';
947: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
948: my $selectedvalue='this.form.'.$selectelement.
949: '.options['.$selectedindex.'].value';
950: my $typedinvalue='this.form.'.$typeinelement.'.value';
951: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71 www 952: $description=&mt($description);
1.60 www 953: #
954: return (<<ENDSELECTORTYPE);
1.119 raeburn 955: <span class="LC_nobreak">
1.60 www 956: $description
957: <select name="$selectelement"
1.74 albertel 958: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60 www 959: $optionlist
960: </select>
961: <input type="text" size="$size" name="$typeinelement"
962: value="$typeinvalue"
963: onChange="$hiddenvalue=$typedinvalue;"
964: onFocus="$selectedindex=$selecttypeinindex-1;" />
1.98 albertel 965: <input type="hidden" name="$element" value="$selected" $change_code />
1.119 raeburn 966: </span>
1.60 www 967: ENDSELECTORTYPE
1.19 albertel 968: }
1.29 matthew 969:
1.49 www 970: #----------------------------------------------------- image coordinates
971: # single image coordinates, x, y
972: sub entercoords {
1.80 albertel 973: my ($idx,$idy,$mode,$width,$height) = @_;
1.49 www 974: unless ($Apache::edit::bgimgsrc) { return ''; }
975: if ($idx) { $idx.='_'; }
976: if ($idy) { $idy.='_'; }
1.102 www 977: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49 www 978: my $form = 'lonhomework';
979: my $element;
980: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 981: $element = &escape("$Apache::lonxml::curdepth");
1.49 www 982: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 983: $element = &escape('homework_edit_'.
1.49 www 984: $Apache::lonxml::curdepth);
985: }
1.80 albertel 986: my $id=$Apache::lonxml::curdepth;
987: my %data=("imagechoice.$id.type" =>'point',
988: "imagechoice.$id.formname" =>$form,
989: "imagechoice.$id.formx" =>"$idx$element",
990: "imagechoice.$id.formy" =>"$idy$element",
991: "imagechoice.$id.file" =>$bgfile,
992: "imagechoice.$id.formcoord" =>$element);
1.49 www 993: if ($height) {
1.80 albertel 994: $data{"imagechoice.$id.formheight"}=$height.'_'.
995: $Apache::edit::bgimgsrccurdepth;
1.49 www 996: }
997: if ($width) {
1.80 albertel 998: $data{"imagechoice.$id.formwidth"}=$width.'_'.
999: $Apache::edit::bgimgsrccurdepth;
1.49 www 1000: }
1.114 raeburn 1001: &Apache::lonnet::appenv(\%data);
1.80 albertel 1002: my $text="Click Coordinates";
1003: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 1004: return $result;
1005: }
1006:
1.77 albertel 1007: # coordinates (x1,y1)-(x2,y2)...
1008: # mode can be either box, or polygon
1009: sub entercoord {
1010: my ($idx,$mode,$width,$height,$type) = @_;
1.49 www 1011: unless ($Apache::edit::bgimgsrc) { return ''; }
1.102 www 1012: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75 albertel 1013: my $form = 'lonhomework';
1014: my $element;
1015: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1016: $element = &escape("$idx\_$Apache::lonxml::curdepth");
1.75 albertel 1017: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1018: $element = &escape('homework_edit_'.
1.75 albertel 1019: $Apache::lonxml::curdepth);
1020: }
1.76 albertel 1021: my $id=$Apache::lonxml::curdepth;
1.77 albertel 1022: my %data=("imagechoice.$id.type" =>$type,
1.76 albertel 1023: "imagechoice.$id.formname" =>$form,
1024: "imagechoice.$id.file" =>$bgfile,
1025: "imagechoice.$id.formcoord" =>$element);
1.75 albertel 1026: if ($height) {
1.76 albertel 1027: $data{"imagechoice.$id.formheight"}=$height.'_'.
1028: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 1029: }
1030: if ($width) {
1.76 albertel 1031: $data{"imagechoice.$id.formwidth"}=$width.'_'.
1032: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 1033: }
1.114 raeburn 1034: &Apache::lonnet::appenv(\%data);
1.77 albertel 1035: my $text="Enter Coordinates";
1036: if ($type eq 'polygon') { $text='Create Polygon Data'; }
1037: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 1038: return $result;
1039: }
1.76 albertel 1040:
1041: sub deletecoorddata {
1.122 raeburn 1042: &Apache::lonnet::delenv('imagechoice.');
1.76 albertel 1043: }
1044:
1.29 matthew 1045: #----------------------------------------------------- browse
1046: sub browse {
1047: # insert a link to call up the filesystem browser (lonindexer)
1.107 banghart 1048: my ($id, $mode, $titleid, $only) = @_;
1.29 matthew 1049: my $form = 'lonhomework';
1.42 matthew 1050: my $element;
1051: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1052: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.42 matthew 1053: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1054: $element = &escape('homework_edit_'.
1.68 albertel 1055: $Apache::lonxml::curdepth);
1056: }
1057: my $titleelement;
1058: if ($titleid) {
1.107 banghart 1059: $titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.108 banghart 1060: } else {
1061: $titleelement=",'$only'";
1.42 matthew 1062: }
1.29 matthew 1063: my $result = <<"ENDBUTTON";
1.68 albertel 1064: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29 matthew 1065: ENDBUTTON
1066: return $result;
1067: }
1068:
1.30 matthew 1069: #----------------------------------------------------- browse
1070: sub search {
1071: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 1072: my ($id, $mode, $titleid) = @_;
1.30 matthew 1073: my $form = 'lonhomework';
1.49 www 1074: my $element;
1075: if (! defined($mode) || $mode eq 'attribute') {
1.102 www 1076: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.49 www 1077: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 www 1078: $element = &escape('homework_edit_'.
1.49 www 1079: $Apache::lonxml::curdepth);
1080: }
1.68 albertel 1081: my $titleelement;
1082: if ($titleid) {
1.102 www 1083: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.68 albertel 1084: }
1.30 matthew 1085: my $result = <<"ENDBUTTON";
1.68 albertel 1086: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30 matthew 1087: ENDBUTTON
1088: return $result;
1089: }
1090:
1091:
1.1 albertel 1092: 1;
1093: __END__
1.26 harris41 1094:
1095:
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