1: # The LearningOnline Network with CAPA
2: # edit mode helpers
3: #
4: # $Id: edit.pm,v 1.119 2008/12/10 21:02:01 raeburn Exp $
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: #
28:
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:
47: =head1 SUBROUTINES
48:
49: =over 4
50:
51: =item initialize_edit()
52:
53: initialize edit (set colordepth to zero)
54:
55: =item tag_start($target,$token,$description)
56:
57: provide deletion and insertion lists
58: for the manipulation of a start tag; return a scalar string
59:
60: =item tag_end($target,$token,$description)
61:
62: ending syntax corresponding to
63: &tag_start. return a scalar string.
64:
65: =item start_table($token)
66:
67: start table; update colordepth; return scalar string.
68:
69: =item end_table()
70:
71: reduce color depth; end table; return scalar string
72:
73: =item start_spanning_row()
74:
75: start a new table row spanning the 'edit' environment.
76:
77: =item start_row()
78:
79: start a new table row and element.
80:
81: =item end_row()
82:
83: end current table element and row.
84:
85: =item movebuttons($target,$token)
86:
87: move-up and move-down buttons; return scalar string
88:
89: =item deletelist($target,$token)
90:
91: provide a yes option in an HTML select element; return scalar string
92:
93: =item handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
94: $style)
95:
96: respond to a user delete request by passing relevant stack
97: and array information to various rendering functions; return a scalar string
98:
99: =item get_insert_list($token)
100:
101: provide an insertion list based on possibilities from lonxml; return a scalar string
102:
103: =item insertlist($target,$token)
104:
105: api that uses get_insert_list; return a scalar string
106:
107: =item handleinsert($token)
108:
109: provide an insertion list based on possibilities from lonxml; return a scalar string
110:
111: =item get_insert_list($token)
112:
113: provide an insertion list based on possibilities from lonxml; return a scalar string
114:
115: =item browse($elementname)
116:
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 $elementname.
118:
119: =item search($elementname)
120:
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.
126:
127: =back
128:
129: =cut
130:
131: package Apache::edit;
132:
133: use strict;
134: use Apache::lonnet;
135: use HTML::Entities();
136: use Apache::lonlocal;
137: use lib '/home/httpd/lib/perl/';
138: use LONCAPA;
139:
140:
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;
146: @Apache::edit::inserttag=();
147: # image-type responses: active background image and curdepth at definition
148: $Apache::edit::bgimgsrc='';
149: $Apache::edit::bgimgsrccurdepth='';
150:
151: sub initialize_edit {
152: $Apache::edit::colordepth=0;
153: @Apache::edit::inserttag=();
154: }
155:
156: sub tag_start {
157: my ($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>$description</td>
166: <td>".&mt('Delete?').' '.
167: &deletelist($target,$token)
168: ."</td>
169: <td>".
170: &insertlist($target,$token);
171: #<td>".
172: # &movebuttons($target,$token).
173: # "</tr><tr><td colspan=\"3\">\n";
174: my @help = Apache::lonxml::helpinfo($token);
175: if ($help[0]) {
176: $result .= '</td><td align="right" valign="top">' .
177: Apache::loncommon::help_open_topic(@help);
178: } else { $result .= "</td><td> "; }
179: $result .= &end_row().&start_spanning_row();
180: }
181: return $result;
182: }
183:
184: sub tag_end {
185: my ($target,$token,$description) = @_;
186: my $result='';
187: if ($target eq 'edit') {
188: $result.="</td></tr>".&end_table()."\n";
189: }
190: return $result;
191: }
192:
193: sub start_table {
194: my ($token)=@_;
195: my $tag = &Apache::lonxml::get_tag($token);
196:
197: my $color = $Apache::lonxml::insertlist{"$tag.color"};
198: &Apache::lonxml::debug(" $tag -- $color");
199: if (!defined($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;
207: }
208:
209: sub end_table {
210: $Apache::edit::colordepth--;
211: my $result='</table></div>';
212: $result.='<div align="left"><table><tr><td>';
213:
214: my ($tagname,$closingtag);
215: if (defined($Apache::edit::inserttag[-2])) {
216: $tagname=$Apache::edit::inserttag[-2];
217: } else {
218: if ($Apache::lonhomework::parsing_a_task) {
219: $tagname='Task';
220: } else {
221: $tagname='problem';
222: }
223: }
224: if (defined($Apache::edit::inserttag[-1])) {
225: $closingtag=$Apache::edit::inserttag[-1];
226: }
227: $result.=&innerinsertlist('edit',$tagname,$closingtag).
228: "</td></tr></table></div>";
229: my $last = pop(@Apache::edit::inserttag);
230: return $result;
231: }
232:
233: sub start_spanning_row { return '<tr><td colspan="5" bgcolor="#DDDDDD">';}
234: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
235: sub end_row { return '</td></tr>'; }
236:
237: sub movebuttons {
238: my ($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 $result;
244: }
245:
246: sub deletelist {
247: my ($target,$token) = @_;
248: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
249: <option></option>
250: <option>".&mt('yes')."</option>
251: </select>";
252: return $result;
253: }
254:
255: sub handle_delete {
256: if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
257: my ($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];
270: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style);
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;
276: }
277:
278: sub get_insert_list {
279: my ($tagname) = @_;
280: my $result='';
281: my @tags= ();
282: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
283: if ($Apache::lonxml::insertlist{"$tagname.which"}) {
284: push (@tags, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
285: }
286: foreach my $namespace (@Apache::lonxml::namespace) {
287: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
288: push (@tags, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
289: }
290: }
291: if (@tags) {
292: my %options;
293: foreach my $tag (@tags) {
294: my $descrip=$Apache::lonxml::insertlist{"$tag.description"};
295: my $tagnum =$Apache::lonxml::insertlist{"$tag.num"};
296: $options{$descrip} ="<option value=\"$tagnum\">".
297: $descrip."</option>\n";
298: }
299: foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
300: if ($result) { $result='<option selected="selected"></option>'.$result; }
301: }
302: return $result;
303: }
304:
305: sub insertlist {
306: my ($target,$token) = @_;
307: return &innerinsertlist($target,$token->[1]);
308: }
309:
310: sub innerinsertlist {
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) {
320: $result = &mt('Insert:')."
321: <select name=\"insert$after\_$Apache::lonxml::curdepth\">
322: $optionlist
323: </select>"
324: } else {
325: $result=" ";
326: }
327: }
328: return $result;
329: }
330:
331: sub handle_insert {
332: if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
333: my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"};
334: return &do_insert($tagnum);
335: }
336:
337: sub handle_insertafter {
338: my $tagname=shift;
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"};
343: return &do_insert($tagnum,1);
344: }
345:
346: sub do_insert {
347: my ($tagnum,$after) = @_;
348: my $result;
349:
350: my $newtag = $Apache::lonxml::insertlist{"$tagnum.tag"};
351: my $func = $Apache::lonxml::insertlist{"$newtag.function"};
352: if ($func eq 'default') {
353: my $namespace;
354: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
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>";
359: } else {
360: if (defined(&$func)) {
361: {
362: no strict 'refs';
363: $result.=&$func();
364: }
365: } else {
366: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined. ($tagnum)");
367: }
368: }
369: return $result;
370: }
371:
372: sub insert_img {
373: return '
374: <img />';
375: }
376:
377: sub insert_responseparam {
378: return '
379: <responseparam />';
380: }
381:
382: sub insert_parameter {
383: return '
384: <parameter />';
385: }
386:
387: sub insert_formularesponse {
388: return '
389: <formularesponse answer="" samples="">
390: <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
391: <textline size="25"/>
392: <hintgroup>
393: <startouttext /><endouttext />
394: </hintgroup>
395: </formularesponse>';
396: }
397:
398: sub insert_numericalresponse {
399: return '
400: <numericalresponse answer="">
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" />
403: <textline />
404: <hintgroup>
405: <startouttext /><endouttext />
406: </hintgroup>
407: </numericalresponse>';
408: }
409:
410: sub insert_customresponse {
411: return '
412: <customresponse>
413: <answer type="loncapa/perl">
414: </answer>
415: <textline />
416: <hintgroup>
417: <startouttext /><endouttext />
418: </hintgroup>
419: </customresponse>';
420: }
421:
422: sub insert_customresponse_answer {
423: return '
424: <answer type="loncapa/perl">
425: </answer>
426: ';
427: }
428:
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:
479: sub insert_stringresponse {
480: return '
481: <stringresponse answer="" type="">
482: <textline />
483: <hintgroup>
484: <startouttext /><endouttext />
485: </hintgroup>
486: </stringresponse>';
487: }
488:
489: sub insert_essayresponse {
490: return '
491: <essayresponse>
492: <textfield></textfield>
493: </essayresponse>';
494: }
495:
496: sub insert_imageresponse {
497: return '
498: <imageresponse max="1">
499: <foilgroup>
500: <foil>
501: </foil>
502: </foilgroup>
503: <hintgroup>
504: <startouttext /><endouttext />
505: </hintgroup>
506: </imageresponse>';
507: }
508:
509: sub insert_optionresponse {
510: return '
511: <optionresponse max="10">
512: <foilgroup options="">
513: <foil>
514: <startouttext /><endouttext />
515: </foil>
516: </foilgroup>
517: <hintgroup>
518: <startouttext /><endouttext />
519: </hintgroup>
520: </optionresponse>';
521: }
522:
523: sub insert_organicresponse {
524: return '
525: <organicresponse>
526: <textline />
527: <hintgroup>
528: <startouttext /><endouttext />
529: </hintgroup>
530: </organicresponse>';
531: }
532:
533: sub insert_organicstructure {
534: return '
535: <organicstructure />
536: ';
537: }
538:
539: sub insert_radiobuttonresponse {
540: return '
541: <radiobuttonresponse max="10">
542: <foilgroup>
543: <foil>
544: <startouttext /><endouttext />
545: </foil>
546: </foilgroup>
547: <hintgroup>
548: <startouttext /><endouttext />
549: </hintgroup>
550: </radiobuttonresponse>';
551: }
552:
553: sub insert_reactionresponse {
554: return '
555: <reactionresponse>
556: <textline />
557: <hintgroup>
558: <startouttext /><endouttext />
559: </hintgroup>
560: </reactionresponse>';
561: }
562:
563: sub insert_rankresponse {
564: return '
565: <rankresponse max="10">
566: <foilgroup options="">
567: <foil>
568: <startouttext /><endouttext />
569: </foil>
570: </foilgroup>
571: <hintgroup>
572: <startouttext /><endouttext />
573: </hintgroup>
574: </rankresponse>';
575: }
576:
577: sub insert_matchresponse {
578: return '
579: <matchresponse max="10">
580: <foilgroup options="">
581: <itemgroup>
582: </itemgroup>
583: <foil>
584: <startouttext /><endouttext />
585: </foil>
586: </foilgroup>
587: <hintgroup>
588: <startouttext /><endouttext />
589: </hintgroup>
590: </matchresponse>';
591: }
592:
593: sub insert_displayduedate { return '<displayduedate />'; }
594: sub insert_displaytitle { return '<displaytitle />'; }
595: sub insert_hintpart {
596: return '
597: <hintpart on="default">
598: <startouttext/><endouttext />
599: </hintpart>';
600: }
601:
602: sub insert_hintgroup {
603: return '
604: <hintgroup>
605: <startouttext /><endouttext />
606: </hintgroup>';
607: }
608:
609: sub insert_numericalhint {
610: return '
611: <numericalhint>
612: </numericalhint>';
613: }
614:
615: sub insert_stringhint {
616: return '
617: <stringhint>
618: </stringhint>';
619: }
620:
621: sub insert_formulahint {
622: return '
623: <formulahint>
624: </formulahint>';
625: }
626:
627: sub insert_radiobuttonhint {
628: return '
629: <radiobuttonhint>
630: </radiobuttonhint>';
631: }
632:
633: sub insert_optionhint {
634: return '
635: <optionhint>
636: </optionhint>';
637: }
638:
639: sub insert_startouttext {
640: return "<startouttext /><endouttext />";
641: }
642:
643: sub insert_script {
644: return "\n<script type=\"loncapa/perl\"></script>";
645: }
646:
647: sub js_change_detection {
648: my $unsaved=&mt("There are unsaved changes");
649: return (<<SCRIPT);
650: <script type="text/javascript">
651: var clean = true;
652: var is_submit = false;
653: var still_ask = false;
654: function compareForm(event_) {
655: if (!event_ && window.event) {
656: event_ = window.event;
657: }
658: if ((!is_submit || (is_submit && still_ask)) && !clean) {
659: still_ask = false;
660: is_submit = false;
661: event_.returnValue = "$unsaved";
662: return "$unsaved";
663: }
664: }
665: function unClean() {
666: clean=false;
667: }
668: window.onbeforeunload = compareForm;
669: </script>
670: SCRIPT
671: }
672:
673: sub form_change_detection {
674: return ' onsubmit="is_submit=true;" ';
675: }
676:
677: sub element_change_detection {
678: return ' onchange="unClean();" ';
679: }
680:
681: sub submit_ask_anyway {
682: my ($extra_action) = @_;
683: return ' onclick="still_ask=true;'.$extra_action.'" ';
684: }
685:
686: sub textarea_sizes {
687: my ($data)=@_;
688: my $count=0;
689: my $maxlength=-1;
690: foreach (split ("\n", $$data)) {
691: $count+=int(length($_)/79);
692: $count++;
693: if (length($_) > $maxlength) { $maxlength = length($_); }
694: }
695: my $rows = $count;
696: my $cols = $maxlength;
697: return ($rows,$cols);
698: }
699:
700: sub editline {
701: my ($tag,$data,$description,$size)=@_;
702: $data=&HTML::Entities::encode($data,'<>&"');
703: if ($description) { $description=$description."<br />"; }
704: my $change_code = &element_change_detection();
705: my $result = <<"END";
706: $description
707: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
708: value="$data" size="$size" $change_code />
709: END
710: return $result;
711: }
712:
713: sub editfield {
714: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
715:
716: my ($rows,$cols)=&textarea_sizes(\$data);
717: if (&Apache::lonhtmlcommon::htmlareabrowser() &&
718: !&Apache::lonhtmlcommon::htmlareablocked()) {
719: $rows+=7; # make room for HTMLarea
720: $minheight+=7; # make room for HTMLarea
721: }
722: if ($cols > 80) { $cols = 80; }
723: if ($cols < $minwidth ) { $cols = $minwidth; }
724: if ($rows < $minheight) { $rows = $minheight; }
725: if ($description) { $description=$description."<br />"; }
726: if ($usehtmlarea) {
727: &Apache::lonhtmlcommon::add_htmlareafields('homework_edit_'.
728: $Apache::lonxml::curdepth);
729: }
730: # remove typesetting whitespace from between data and the end tag
731: # to make the edit look prettier
732: $data =~ s/\n?[ \t]*$//;
733:
734: return $description."\n".'<textarea style="width:100%" rows="'.$rows.
735: '" cols="'.$cols.'" name="homework_edit_'.
736: $Apache::lonxml::curdepth.'" id="homework_edit_'.
737: $Apache::lonxml::curdepth.'" '.&element_change_detection().'>'.
738: &HTML::Entities::encode($data,'<>&"').'</textarea>'.
739: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
740: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
741: }
742:
743: sub modifiedfield {
744: my ($endtag,$parser) = @_;
745: my $result;
746: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
747: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
748: # textareas throw away intial \n
749: if ($bodytext=~/^\n/) {
750: $result="\n".$result;
751: }
752: # if there is typesetting whitespace from between the data and the end tag
753: # restore to keep the source looking pretty
754: if ($bodytext =~ /(\n?[ \t]*)$/) {
755: $result .= $1;
756: }
757: return $result;
758: }
759:
760: # Returns a 1 if the token has been modified and you should rebuild the tag
761: # side-effects, will modify the $token if new values are found
762: sub get_new_args {
763: my ($token,$parstack,$safeeval,@args)=@_;
764: my $rebuild=0;
765: foreach my $arg (@args) {
766: #just want the string that it was set to
767: my $value=$token->[2]->{$arg};
768: my $element=&html_element_name($arg);
769: my $newvalue=$env{"form.$element"};
770: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
771: if (defined($newvalue) && $value ne $newvalue) {
772: if (ref($newvalue) eq 'ARRAY') {
773: $token->[2]->{$arg}=join(',',@$newvalue);
774: } else {
775: $token->[2]->{$arg}=$newvalue;
776: }
777: $rebuild=1;
778: # add new attributes to the of the attribute seq
779: if (!grep { $arg eq $_ } (@{ $token->[3] })) {
780: push(@{ $token->[3] },$arg);
781: }
782: } elsif (!defined($newvalue) && defined($value)) {
783: delete($token->[2]->{$arg});
784: $rebuild=1;
785: }
786: }
787: return $rebuild;
788: }
789:
790: # looks for /> on start tags
791: sub rebuild_tag {
792: my ($token) = @_;
793: my $result;
794: if ($token->[0] eq 'S') {
795: $result = '<'.$token->[1];
796: foreach my $attribute (@{ $token->[3] }) {
797: my $value = $token->[2]{$attribute};
798: next if ($value eq '');
799: $value =~s/^\s+|\s+$//g;
800: $value =~s/\"//g;
801: &Apache::lonxml::debug("setting :$attribute: to :$value:");
802: $result.=' '.$attribute.'="'.$value.'"';
803: }
804: if ($token->[4] =~ m:/>$:) {
805: $result.=' />';
806: } else {
807: $result.='>';
808: }
809: } elsif ( $token->[0] eq 'E' ) {
810: $result = '</'.$token->[1].'>';
811: }
812: return $result;
813: }
814:
815: sub html_element_name {
816: my ($name) = @_;
817: return $name.'_'.$Apache::lonxml::curdepth;
818: }
819:
820: sub hidden_arg {
821: my ($name,$token) = @_;
822: my $result;
823: my $arg=$token->[2]{$name};
824: $result='<input name="'.&html_element_name($name).
825: '" type="hidden" value="'.$arg.'" />';
826: return $result;
827: }
828:
829: sub checked_arg {
830: my ($description,$name,$list,$token) = @_;
831: my $result;
832: my $optionlist="";
833: my $allselected=$token->[2]{$name};
834: $result=&mt($description);
835: foreach my $option (@$list) {
836: my ($value,$text);
837: if ( ref($option) eq 'ARRAY') {
838: $value='value="'.$$option[0].'"';
839: $text=$$option[1];
840: $option=$$option[0];
841: } else {
842: $text=$option;
843: $value='value="'.$option.'"';
844: }
845: $result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
846: &html_element_name($name).'"';
847: foreach my $selected (split(/,/,$allselected)) {
848: if ( $selected eq $option ) {
849: $result.=' checked="checked" ';
850: last;
851: }
852: }
853: $result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
854: }
855: return $result;
856: }
857:
858: sub text_arg {
859: my ($description,$name,$token,$size) = @_;
860: my $result;
861: if (!defined $size) { $size=20; }
862: my $arg=$token->[2]{$name};
863: $result=&mt($description).' <input name="'.&html_element_name($name).
864: '" type="text" value="'.$arg.'" size="'.$size.'" '.
865: &element_change_detection().'/>';
866: return '<span class="LC_nobreak">'.$result.'</span>';
867: }
868:
869: sub select_arg {
870: my ($description,$name,$list,$token) = @_;
871: my $result;
872: my $optionlist="";
873: my $selected=$token->[2]{$name};
874: foreach my $option (@$list) {
875: my ($text,$value);
876: if ( ref($option) eq 'ARRAY') {
877: $value='value="'.&HTML::Entities::encode($$option[0]).'"';
878: $text=$$option[1];
879: $option=$$option[0];
880: } else {
881: $text=$option;
882: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
883: }
884: if ( $selected eq $option ) {
885: $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
886: } else {
887: $optionlist.="<option $value >".&mt($text)."</option>\n";
888: }
889: }
890: $result.='<span class="LC_nobreak>'.&mt($description).' <select name="'.
891: &html_element_name($name).'" '.&element_change_detection().' >
892: '.$optionlist.'
893: </select></span>';
894: return $result;
895: }
896:
897: sub select_or_text_arg {
898: my ($description,$name,$list,$token,$size) = @_;
899: my $result;
900: my $optionlist="";
901: my $found=0;
902: my $selected=$token->[2]{$name};
903: foreach my $option (@$list) {
904: my ($text,$value);
905: if ( ref($option) eq 'ARRAY') {
906: $value='value="'.&HTML::Entities::encode($$option[0]).'"';
907: $text=$$option[1];
908: $option=$$option[0];
909: } else {
910: $text=$option;
911: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
912: }
913: if ( $selected eq $option ) {
914: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
915: $found=1;
916: } else {
917: $optionlist.="<option $value>$text</option>\n";
918: }
919: }
920: $optionlist.="<option value=\"TYPEDINVALUE\"".
921: ((!$found)?' selected="selected"':'').
922: ">".&mt('Type-in value')."</option>\n";
923: #
924: my $change_code=&element_change_detection();
925: my $element=&html_element_name($name);
926: my $selectelement='select_list_'.$element;
927: my $typeinelement='type_in_'.$element;
928: my $typeinvalue=($found?'':$selected);
929: #
930: my $hiddenvalue='this.form.'.$element.'.value';
931: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
932: my $selectedvalue='this.form.'.$selectelement.
933: '.options['.$selectedindex.'].value';
934: my $typedinvalue='this.form.'.$typeinelement.'.value';
935: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
936: $description=&mt($description);
937: #
938: return (<<ENDSELECTORTYPE);
939: <span class="LC_nobreak">
940: $description
941: <select name="$selectelement"
942: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
943: $optionlist
944: </select>
945: <input type="text" size="$size" name="$typeinelement"
946: value="$typeinvalue"
947: onChange="$hiddenvalue=$typedinvalue;"
948: onFocus="$selectedindex=$selecttypeinindex-1;" />
949: <input type="hidden" name="$element" value="$selected" $change_code />
950: </span>
951: ENDSELECTORTYPE
952: }
953:
954: #----------------------------------------------------- image coordinates
955: # single image coordinates, x, y
956: sub entercoords {
957: my ($idx,$idy,$mode,$width,$height) = @_;
958: unless ($Apache::edit::bgimgsrc) { return ''; }
959: if ($idx) { $idx.='_'; }
960: if ($idy) { $idy.='_'; }
961: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
962: my $form = 'lonhomework';
963: my $element;
964: if (! defined($mode) || $mode eq 'attribute') {
965: $element = &escape("$Apache::lonxml::curdepth");
966: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
967: $element = &escape('homework_edit_'.
968: $Apache::lonxml::curdepth);
969: }
970: my $id=$Apache::lonxml::curdepth;
971: my %data=("imagechoice.$id.type" =>'point',
972: "imagechoice.$id.formname" =>$form,
973: "imagechoice.$id.formx" =>"$idx$element",
974: "imagechoice.$id.formy" =>"$idy$element",
975: "imagechoice.$id.file" =>$bgfile,
976: "imagechoice.$id.formcoord" =>$element);
977: if ($height) {
978: $data{"imagechoice.$id.formheight"}=$height.'_'.
979: $Apache::edit::bgimgsrccurdepth;
980: }
981: if ($width) {
982: $data{"imagechoice.$id.formwidth"}=$width.'_'.
983: $Apache::edit::bgimgsrccurdepth;
984: }
985: &Apache::lonnet::appenv(\%data);
986: my $text="Click Coordinates";
987: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
988: return $result;
989: }
990:
991: # coordinates (x1,y1)-(x2,y2)...
992: # mode can be either box, or polygon
993: sub entercoord {
994: my ($idx,$mode,$width,$height,$type) = @_;
995: unless ($Apache::edit::bgimgsrc) { return ''; }
996: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
997: my $form = 'lonhomework';
998: my $element;
999: if (! defined($mode) || $mode eq 'attribute') {
1000: $element = &escape("$idx\_$Apache::lonxml::curdepth");
1001: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1002: $element = &escape('homework_edit_'.
1003: $Apache::lonxml::curdepth);
1004: }
1005: my $id=$Apache::lonxml::curdepth;
1006: my %data=("imagechoice.$id.type" =>$type,
1007: "imagechoice.$id.formname" =>$form,
1008: "imagechoice.$id.file" =>$bgfile,
1009: "imagechoice.$id.formcoord" =>$element);
1010: if ($height) {
1011: $data{"imagechoice.$id.formheight"}=$height.'_'.
1012: $Apache::edit::bgimgsrccurdepth;
1013: }
1014: if ($width) {
1015: $data{"imagechoice.$id.formwidth"}=$width.'_'.
1016: $Apache::edit::bgimgsrccurdepth;
1017: }
1018: &Apache::lonnet::appenv(\%data);
1019: my $text="Enter Coordinates";
1020: if ($type eq 'polygon') { $text='Create Polygon Data'; }
1021: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1022: return $result;
1023: }
1024:
1025: sub deletecoorddata {
1026: &Apache::lonnet::delenv("imagechoice\\.");
1027: }
1028:
1029: #----------------------------------------------------- browse
1030: sub browse {
1031: # insert a link to call up the filesystem browser (lonindexer)
1032: my ($id, $mode, $titleid, $only) = @_;
1033: my $form = 'lonhomework';
1034: my $element;
1035: if (! defined($mode) || $mode eq 'attribute') {
1036: $element = &escape("$id\_$Apache::lonxml::curdepth");
1037: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1038: $element = &escape('homework_edit_'.
1039: $Apache::lonxml::curdepth);
1040: }
1041: my $titleelement;
1042: if ($titleid) {
1043: $titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1044: } else {
1045: $titleelement=",'$only'";
1046: }
1047: my $result = <<"ENDBUTTON";
1048: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1049: ENDBUTTON
1050: return $result;
1051: }
1052:
1053: #----------------------------------------------------- browse
1054: sub search {
1055: # insert a link to call up the filesystem browser (lonindexer)
1056: my ($id, $mode, $titleid) = @_;
1057: my $form = 'lonhomework';
1058: my $element;
1059: if (! defined($mode) || $mode eq 'attribute') {
1060: $element = &escape("$id\_$Apache::lonxml::curdepth");
1061: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1062: $element = &escape('homework_edit_'.
1063: $Apache::lonxml::curdepth);
1064: }
1065: my $titleelement;
1066: if ($titleid) {
1067: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1068: }
1069: my $result = <<"ENDBUTTON";
1070: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1071: ENDBUTTON
1072: return $result;
1073: }
1074:
1075:
1076: 1;
1077: __END__
1078:
1079:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to edit.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework