File:
[LON-CAPA] /
loncom /
homework /
edit.pm
Revision
1.103:
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Thu Jul 27 20:47:02 2006 UTC (17 years, 10 months ago) by
albertel
Branches:
MAIN
CVS tags:
version_2_3_X,
version_2_3_2,
version_2_3_1,
version_2_3_0,
version_2_2_X,
version_2_2_99_1,
version_2_2_99_0,
version_2_2_2,
version_2_2_1,
version_2_2_0,
version_2_1_99_3,
version_2_1_99_2,
HEAD
- trying to use less vertical space by text blocks
1: # The LearningOnline Network with CAPA
2: # edit mode helpers
3: #
4: # $Id: edit.pm,v 1.103 2006/07/27 20:47:02 albertel 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: package Apache::edit;
30:
31: use strict;
32: use Apache::lonnet;
33: use HTML::Entities();
34: use Apache::lonlocal;
35: use lib '/home/httpd/lib/perl/';
36: use LONCAPA;
37:
38:
39: # Global Vars
40: # default list of colors to use in editing
41: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
42: # depth of nesting of edit
43: $Apache::edit::colordepth=0;
44: @Apache::edit::inserttag=();
45: # image-type responses: active background image and curdepth at definition
46: $Apache::edit::bgimgsrc='';
47: $Apache::edit::bgimgsrccurdepth='';
48:
49: sub initialize_edit {
50: $Apache::edit::colordepth=0;
51: @Apache::edit::inserttag=();
52: }
53:
54: sub tag_start {
55: my ($target,$token,$description) = @_;
56: my $result='';
57: if ($target eq "edit") {
58: my $tag=$token->[1];
59: if (!$description) {
60: $description=&Apache::lonxml::description($token);
61: if (!$description) { $description="<$tag>"; }
62: }
63: $result.= &start_table($token)."<tr><td>$description</td>
64: <td>Delete".
65: &deletelist($target,$token)
66: ."</td>
67: <td>".
68: &insertlist($target,$token);
69: #<td>".
70: # &movebuttons($target,$token).
71: # "</tr><tr><td colspan=\"3\">\n";
72: my @help = Apache::lonxml::helpinfo($token);
73: if ($help[0]) {
74: $result .= '</td><td align="right" valign="top">' .
75: Apache::loncommon::help_open_topic(@help);
76: } else { $result .= "</td><td> "; }
77: $result .= &end_row().&start_spanning_row();
78: }
79: return $result;
80: }
81:
82: sub tag_end {
83: my ($target,$token,$description) = @_;
84: my $result='';
85: if ($target eq 'edit') {
86: $result.="</td></tr>".&end_table()."\n";
87: }
88: return $result;
89: }
90:
91: sub start_table {
92: my ($token)=@_;
93: my $tag = $token->[1];
94: my $tagnum;
95: foreach my $namespace (reverse @Apache::lonxml::namespace) {
96: my $testtag=$namespace.'::'.$tag;
97: $tagnum=$Apache::lonxml::insertlist{"$testtag.num"};
98: &Apache::lonxml::debug(" $testtag ");
99: if (defined($tagnum)) { last; }
100: }
101: if (!defined ($tagnum)) {$tagnum=$Apache::lonxml::insertlist{"$tag.num"};}
102: my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
103: &Apache::lonxml::debug(" $tagnum -- $color");
104: if (!defined($color)) {
105: $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
106: }
107: $Apache::edit::colordepth++;
108: push(@Apache::edit::inserttag,$token->[1]);
109: my $result='<div align="right">';
110: $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="5" cellpadding="3">';
111: return $result;
112: }
113:
114: sub end_table {
115: $Apache::edit::colordepth--;
116: my $result='</table></div>';
117: $result.='<div align="left"><table><tr><td>';
118:
119: my ($tagname,$closingtag);
120: if (defined($Apache::edit::inserttag[-2])) {
121: $tagname=$Apache::edit::inserttag[-2];
122: } else {$tagname='problem';}
123: if (defined($Apache::edit::inserttag[-1])) {
124: $closingtag=$Apache::edit::inserttag[-1];
125: }
126: $result.=&innerinsertlist('edit',$tagname,$closingtag).
127: "</td></tr></table></div>";
128: pop(@Apache::edit::inserttag);
129: return $result;
130: }
131:
132: sub start_spanning_row { return '<tr><td colspan="4" bgcolor="#DDDDDD">';}
133: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
134: sub end_row { return '</td></tr>'; }
135:
136: sub movebuttons {
137: my ($target,$token) = @_;
138: my $result='<input type="submit" name="moveup.'.
139: $Apache::lonxml::curdepth.'" value="Move Up" />';
140: $result.='<input type="submit" name="movedown.'.
141: $Apache::lonxml::curdepth.'" value="Move Down" />';
142: return $result;
143: }
144:
145: sub deletelist {
146: my ($target,$token) = @_;
147: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
148: <option></option>
149: <option>Yes</option>
150: </select>";
151: return $result;
152: }
153:
154: sub handle_delete {
155: if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
156: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
157: my $result=0;
158: if ($space) {
159: my $sub1="$space\:\:delete_$token->[1]";
160: {
161: no strict 'refs';
162: if (defined &$sub1) {
163: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
164: }
165: }
166: }
167: if (!$result) {
168: my $endtag='/'.$token->[1];
169: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style);
170: $$parser['-1']->get_token();
171: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
172: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
173: }
174: return 1;
175: }
176:
177: sub get_insert_list {
178: my ($tagname) = @_;
179: my $result='';
180: my @tagnums= ();
181: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
182: if ($Apache::lonxml::insertlist{"$tagname.which"}) {
183: push (@tagnums, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
184: }
185: foreach my $namespace (@Apache::lonxml::namespace) {
186: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
187: push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
188: }
189: }
190: if (@tagnums) {
191: my %options;
192: foreach my $tagnum (@tagnums) {
193: my $descrip=$Apache::lonxml::insertlist{"$tagnum.description"};
194: $options{$descrip} ="<option value=\"$tagnum\">".
195: $descrip."</option>\n";
196: }
197: foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
198: if ($result) { $result='<option selected="selected"></option>'.$result; }
199: }
200: return $result;
201: }
202:
203: sub insertlist {
204: my ($target,$token) = @_;
205: return &innerinsertlist($target,$token->[1]);
206: }
207:
208: sub innerinsertlist {
209: my ($target,$tagname,$closingtag) = @_;
210: my $result;
211: my $after='';
212: if ($closingtag) {
213: $after='_after_'.$closingtag;
214: }
215: if ($target eq 'edit') {
216: my $optionlist= &get_insert_list($tagname);
217: if ($optionlist) {
218: $result = "Insert:
219: <select name=\"insert$after\_$Apache::lonxml::curdepth\">
220: $optionlist
221: </select>"
222: } else {
223: $result=" ";
224: }
225: }
226: return $result;
227: }
228:
229: sub handle_insert {
230: if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
231: my $result;
232: my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"};
233: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
234: if ($func eq 'default') {
235: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
236: my $namespace;
237: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
238: $result.="\n<$newtag>\n</$newtag>";
239: } else {
240: if (defined(&$func)) {
241: {
242: no strict 'refs';
243: $result.=&$func();
244: }
245: } else {
246: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
247: &Apache::lonxml::error("Unable to insert tag ".$Apache::lonxml::curdepth." ($tagnum) $newtag, func was not defined.");
248: }
249: }
250: return $result;
251: }
252:
253: sub handle_insertafter {
254: my $tagname=shift;
255: if ($env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '')
256: { return ''; }
257: my $result;
258: my $tagnum =$env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
259: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
260: if ($func eq 'default') {
261: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
262: my $namespace;
263: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
264: $result.="\n<$newtag>\n</$newtag>";
265: } else {
266: if (defined(&$func)) {
267: {
268: no strict 'refs';
269: $result.=&$func();
270: }
271: } else {
272: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
273: &Apache::lonxml::error("Unable to insert (after) tag $newtag, $func was not defined. ($tagname $tagnum)");
274: }
275: }
276: return $result;
277: }
278:
279: sub insert_img {
280: return '
281: <img />';
282: }
283:
284: sub insert_responseparam {
285: return '
286: <responseparam />';
287: }
288:
289: sub insert_parameter {
290: return '
291: <parameter />';
292: }
293:
294: sub insert_formularesponse {
295: return '
296: <formularesponse answer="" samples="">
297: <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
298: <textline size="25"/>
299: <hintgroup>
300: <startouttext /><endouttext />
301: </hintgroup>
302: </formularesponse>';
303: }
304:
305: sub insert_numericalresponse {
306: return '
307: <numericalresponse answer="">
308: <responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
309: <responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
310: <textline />
311: <hintgroup>
312: <startouttext /><endouttext />
313: </hintgroup>
314: </numericalresponse>';
315: }
316:
317: sub insert_customresponse {
318: return '
319: <customresponse>
320: <answer type="loncapa/perl">
321: </answer>
322: <textline />
323: <hintgroup>
324: <startouttext /><endouttext />
325: </hintgroup>
326: </customresponse>';
327: }
328:
329: sub insert_customresponse_answer {
330: return '
331: <answer type="loncapa/perl">
332: </answer>
333: ';
334: }
335:
336: sub insert_stringresponse {
337: return '
338: <stringresponse answer="" type="">
339: <textline />
340: <hintgroup>
341: <startouttext /><endouttext />
342: </hintgroup>
343: </stringresponse>';
344: }
345:
346: sub insert_essayresponse {
347: return '
348: <essayresponse>
349: <textfield></textfield>
350: </essayresponse>';
351: }
352:
353: sub insert_imageresponse {
354: return '
355: <imageresponse max="1">
356: <foilgroup>
357: <foil>
358: </foil>
359: </foilgroup>
360: <hintgroup>
361: <startouttext /><endouttext />
362: </hintgroup>
363: </imageresponse>';
364: }
365:
366: sub insert_optionresponse {
367: return '
368: <optionresponse max="10">
369: <foilgroup options="">
370: <foil>
371: <startouttext /><endouttext />
372: </foil>
373: </foilgroup>
374: <hintgroup>
375: <startouttext /><endouttext />
376: </hintgroup>
377: </optionresponse>';
378: }
379:
380: sub insert_organicresponse {
381: return '
382: <organicresponse>
383: <textline />
384: <hintgroup>
385: <startouttext /><endouttext />
386: </hintgroup>
387: </organicresponse>';
388: }
389:
390: sub insert_organicstructure {
391: return '
392: <organicstructure />
393: ';
394: }
395:
396: sub insert_radiobuttonresponse {
397: return '
398: <radiobuttonresponse max="10">
399: <foilgroup>
400: <foil>
401: <startouttext /><endouttext />
402: </foil>
403: </foilgroup>
404: <hintgroup>
405: <startouttext /><endouttext />
406: </hintgroup>
407: </radiobuttonresponse>';
408: }
409:
410: sub insert_reactionresponse {
411: return '
412: <reactionresponse>
413: <textline />
414: <hintgroup>
415: <startouttext /><endouttext />
416: </hintgroup>
417: </reactionresponse>';
418: }
419:
420: sub insert_rankresponse {
421: return '
422: <rankresponse max="10">
423: <foilgroup options="">
424: <foil>
425: <startouttext /><endouttext />
426: </foil>
427: </foilgroup>
428: <hintgroup>
429: <startouttext /><endouttext />
430: </hintgroup>
431: </rankresponse>';
432: }
433:
434: sub insert_matchresponse {
435: return '
436: <matchresponse max="10">
437: <foilgroup options="">
438: <itemgroup>
439: </itemgroup>
440: <foil>
441: <startouttext /><endouttext />
442: </foil>
443: </foilgroup>
444: <hintgroup>
445: <startouttext /><endouttext />
446: </hintgroup>
447: </matchresponse>';
448: }
449:
450: sub insert_displayduedate { return '<displayduedate />'; }
451: sub insert_displaytitle { return '<displaytitle />'; }
452: sub insert_hintpart {
453: return '
454: <hintpart on="default">
455: <startouttext/><endouttext />
456: </hintpart>';
457: }
458:
459: sub insert_hintgroup {
460: return '
461: <hintgroup>
462: <startouttext /><endouttext />
463: </hintgroup>';
464: }
465:
466: sub insert_numericalhint {
467: return '
468: <numericalhint>
469: </numericalhint>';
470: }
471:
472: sub insert_stringhint {
473: return '
474: <stringhint>
475: </stringhint>';
476: }
477:
478: sub insert_formulahint {
479: return '
480: <formulahint>
481: </formulahint>';
482: }
483:
484: sub insert_radiobuttonhint {
485: return '
486: <radiobuttonhint>
487: </radiobuttonhint>';
488: }
489:
490: sub insert_optionhint {
491: return '
492: <optionhint>
493: </optionhint>';
494: }
495:
496: sub insert_startouttext {
497: return "<startouttext /><endouttext />";
498: }
499:
500: sub insert_script {
501: return "\n<script type=\"loncapa/perl\"></script>";
502: }
503:
504: sub js_change_detection {
505: my $unsaved=&mt("There are unsaved changes");
506: return (<<SCRIPT);
507: <script type="text/javascript">
508: var clean = true;
509: var is_submit = false;
510: var still_ask = false;
511: function compareForm(event_) {
512: if (!event_ && window.event) {
513: event_ = window.event;
514: }
515: if ((!is_submit || (is_submit && still_ask)) && !clean) {
516: still_ask = false;
517: is_submit = false;
518: event_.returnValue = "$unsaved";
519: return "$unsaved";
520: }
521: }
522: function unClean() {
523: clean=false;
524: }
525: window.onbeforeunload = compareForm;
526: </script>
527: SCRIPT
528: }
529:
530: sub form_change_detection {
531: return ' onsubmit="is_submit=true;" ';
532: }
533:
534: sub element_change_detection {
535: return ' onchange="unClean();" ';
536: }
537:
538: sub submit_ask_anyway {
539: return ' onclick="still_ask=true;" ';
540: }
541:
542: sub textarea_sizes {
543: my ($data)=@_;
544: my $count=0;
545: my $maxlength=-1;
546: foreach (split ("\n", $$data)) {
547: $count+=int(length($_)/79);
548: $count++;
549: if (length($_) > $maxlength) { $maxlength = length($_); }
550: }
551: my $rows = $count;
552: my $cols = $maxlength;
553: return ($rows,$cols);
554: }
555:
556: sub editline {
557: my ($tag,$data,$description,$size)=@_;
558: $data=&HTML::Entities::encode($data,'<>&"');
559: if ($description) { $description="<br />".$description."<br />"; }
560: my $change_code = &element_change_detection();
561: my $result = <<"END";
562: $description
563: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
564: value="$data" size="$size" $change_code />
565: END
566: return $result;
567: }
568:
569: sub editfield {
570: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
571:
572: my ($rows,$cols)=&textarea_sizes(\$data);
573: if (&Apache::lonhtmlcommon::htmlareabrowser() &&
574: !&Apache::lonhtmlcommon::htmlareablocked()) {
575: $rows+=7; # make room for HTMLarea
576: $minheight+=7; # make room for HTMLarea
577: }
578: if ($cols > 80) { $cols = 80; }
579: if ($cols < $minwidth ) { $cols = $minwidth; }
580: if ($rows < $minheight) { $rows = $minheight; }
581: if ($description) { $description="<br />".$description."<br />"; }
582: if ($usehtmlarea) {
583: &Apache::lonhtmlcommon::add_htmlareafields('homework_edit_'.
584: $Apache::lonxml::curdepth);
585: }
586: return $description."\n".'<textarea style="width:100%" rows="'.$rows.
587: '" cols="'.$cols.'" name="homework_edit_'.
588: $Apache::lonxml::curdepth.'" id="homework_edit_'.
589: $Apache::lonxml::curdepth.'" '.&element_change_detection().'>'.
590: &HTML::Entities::encode($data,'<>&"').'</textarea>'.
591: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
592: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
593: }
594:
595: sub modifiedfield {
596: my ($endtag,$parser) = @_;
597: my $result;
598: # foreach my $envkey (sort keys %env) {
599: # &Apache::lonxml::debug("$envkey ---- $env{$envkey}");
600: # }
601: # &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
602: # &Apache::lonxml::debug($env{"form.homework_edit_$Apache::lonxml::curdepth"});
603: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
604: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
605: # textareas throw away intial \n
606: if ($bodytext=~/^\n/) { $result="\n".$result; }
607: return $result;
608: }
609:
610: # Returns a 1 if the token has been modified and you should rebuild the tag
611: # side-effects, will modify the $token if new values are found
612: sub get_new_args {
613: my ($token,$parstack,$safeeval,@args)=@_;
614: my $rebuild=0;
615: foreach my $arg (@args) {
616: #just want the string that it was set to
617: my $value=$token->[2]->{$arg};
618: my $element=&html_element_name($arg);
619: my $newvalue=$env{"form.$element"};
620: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
621: if (defined($newvalue) && $value ne $newvalue) {
622: if (ref($newvalue) eq 'ARRAY') {
623: $token->[2]->{$arg}=join(',',@$newvalue);
624: } else {
625: $token->[2]->{$arg}=$newvalue;
626: }
627: $rebuild=1;
628: } elsif (!defined($newvalue) && defined($value)) {
629: delete($token->[2]->{$arg});
630: $rebuild=1;
631: }
632: }
633: return $rebuild;
634: }
635:
636: # looks for /> on start tags
637: sub rebuild_tag {
638: my ($token) = @_;
639: my $result;
640: if ($token->[0] eq 'S') {
641: $result = '<'.$token->[1];
642: while (my ($key,$val)= each(%{$token->[2]})) {
643: $val=~s:^\s+|\s+$::g;
644: $val=~s:"::g; #"
645: &Apache::lonxml::debug("setting :$key: to :$val:");
646: $result.=' '.$key.'="'.$val.'"';
647: }
648: if ($token->[4] =~ m:/>$:) {
649: $result.=' />';
650: } else {
651: $result.='>';
652: }
653: } elsif ( $token->[0] eq 'E' ) {
654: $result = '</'.$token->[1].'>';
655: }
656: return $result;
657: }
658:
659: sub html_element_name {
660: my ($name) = @_;
661: return $name.'_'.$Apache::lonxml::curdepth;
662: }
663:
664: sub hidden_arg {
665: my ($name,$token) = @_;
666: my $result;
667: my $arg=$token->[2]{$name};
668: $result='<input name="'.&html_element_name($name).
669: '" type="hidden" value="'.$arg.'" />';
670: return $result;
671: }
672:
673: sub checked_arg {
674: my ($description,$name,$list,$token) = @_;
675: my $result;
676: my $optionlist="";
677: my $allselected=$token->[2]{$name};
678: $result=&mt($description);
679: foreach my $option (@$list) {
680: my ($value,$text);
681: if ( ref($option) eq 'ARRAY') {
682: $value='value="'.$$option[0].'"';
683: $text=$$option[1];
684: $option=$$option[0];
685: } else {
686: $text=$option;
687: $value='value="'.$option.'"';
688: }
689: $result.="<nobr><label><input type='checkbox' $value name='".
690: &html_element_name($name)."'";
691: foreach my $selected (split(/,/,$allselected)) {
692: if ( $selected eq $option ) {
693: $result.=" checked='checked' ";
694: last;
695: }
696: }
697: $result.=&element_change_detection()." />$text</label></nobr>\n";
698: }
699: return $result;
700: }
701:
702: sub text_arg {
703: my ($description,$name,$token,$size) = @_;
704: my $result;
705: if (!defined $size) { $size=20; }
706: my $arg=$token->[2]{$name};
707: $result=&mt($description).' <input name="'.&html_element_name($name).
708: '" type="text" value="'.$arg.'" size="'.$size.'" '.
709: &element_change_detection().'/>';
710: return '<nobr>'.$result.'</nobr>';
711: }
712:
713: sub select_arg {
714: my ($description,$name,$list,$token) = @_;
715: my $result;
716: my $optionlist="";
717: my $selected=$token->[2]{$name};
718: foreach my $option (@$list) {
719: my ($text,$value);
720: if ( ref($option) eq 'ARRAY') {
721: $value='value="'.&HTML::Entities::encode($$option[0]).'"';
722: $text=$$option[1];
723: $option=$$option[0];
724: } else {
725: $text=$option;
726: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
727: }
728: if ( $selected eq $option ) {
729: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
730: } else {
731: $optionlist.="<option $value >$text</option>\n";
732: }
733: }
734: $result.='<nobr>'.$description.' <select name="'.
735: &html_element_name($name).'" '.&element_change_detection().' >
736: '.$optionlist.'
737: </select></nobr>';
738: return $result;
739: }
740:
741: sub select_or_text_arg {
742: my ($description,$name,$list,$token,$size) = @_;
743: my $result;
744: my $optionlist="";
745: my $found=0;
746: my $selected=$token->[2]{$name};
747: foreach my $option (@$list) {
748: my ($text,$value);
749: if ( ref($option) eq 'ARRAY') {
750: $value='value="'.&HTML::Entities::encode($$option[0]).'"';
751: $text=$$option[1];
752: $option=$$option[0];
753: } else {
754: $text=$option;
755: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
756: }
757: if ( $selected eq $option ) {
758: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
759: $found=1;
760: } else {
761: $optionlist.="<option $value>$text</option>\n";
762: }
763: }
764: $optionlist.="<option value=\"TYPEDINVALUE\"".
765: ((!$found)?' selected="selected"':'').
766: ">".&mt('Type-in value')."</option>\n";
767: #
768: my $change_code=&element_change_detection();
769: my $element=&html_element_name($name);
770: my $selectelement='select_list_'.$element;
771: my $typeinelement='type_in_'.$element;
772: my $typeinvalue=($found?'':$selected);
773: #
774: my $hiddenvalue='this.form.'.$element.'.value';
775: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
776: my $selectedvalue='this.form.'.$selectelement.
777: '.options['.$selectedindex.'].value';
778: my $typedinvalue='this.form.'.$typeinelement.'.value';
779: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
780: $description=&mt($description);
781: #
782: return (<<ENDSELECTORTYPE);
783: <nobr>
784: $description
785: <select name="$selectelement"
786: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
787: $optionlist
788: </select>
789: <input type="text" size="$size" name="$typeinelement"
790: value="$typeinvalue"
791: onChange="$hiddenvalue=$typedinvalue;"
792: onFocus="$selectedindex=$selecttypeinindex-1;" />
793: <input type="hidden" name="$element" value="$selected" $change_code />
794: </nobr>
795: ENDSELECTORTYPE
796: }
797:
798: #----------------------------------------------------- image coordinates
799: # single image coordinates, x, y
800: sub entercoords {
801: my ($idx,$idy,$mode,$width,$height) = @_;
802: unless ($Apache::edit::bgimgsrc) { return ''; }
803: if ($idx) { $idx.='_'; }
804: if ($idy) { $idy.='_'; }
805: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
806: my $form = 'lonhomework';
807: my $element;
808: if (! defined($mode) || $mode eq 'attribute') {
809: $element = &escape("$Apache::lonxml::curdepth");
810: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
811: $element = &escape('homework_edit_'.
812: $Apache::lonxml::curdepth);
813: }
814: my $id=$Apache::lonxml::curdepth;
815: my %data=("imagechoice.$id.type" =>'point',
816: "imagechoice.$id.formname" =>$form,
817: "imagechoice.$id.formx" =>"$idx$element",
818: "imagechoice.$id.formy" =>"$idy$element",
819: "imagechoice.$id.file" =>$bgfile,
820: "imagechoice.$id.formcoord" =>$element);
821: if ($height) {
822: $data{"imagechoice.$id.formheight"}=$height.'_'.
823: $Apache::edit::bgimgsrccurdepth;
824: }
825: if ($width) {
826: $data{"imagechoice.$id.formwidth"}=$width.'_'.
827: $Apache::edit::bgimgsrccurdepth;
828: }
829: &Apache::lonnet::appenv(%data);
830: my $text="Click Coordinates";
831: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
832: return $result;
833: }
834:
835: # coordinates (x1,y1)-(x2,y2)...
836: # mode can be either box, or polygon
837: sub entercoord {
838: my ($idx,$mode,$width,$height,$type) = @_;
839: unless ($Apache::edit::bgimgsrc) { return ''; }
840: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
841: my $form = 'lonhomework';
842: my $element;
843: if (! defined($mode) || $mode eq 'attribute') {
844: $element = &escape("$idx\_$Apache::lonxml::curdepth");
845: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
846: $element = &escape('homework_edit_'.
847: $Apache::lonxml::curdepth);
848: }
849: my $id=$Apache::lonxml::curdepth;
850: my %data=("imagechoice.$id.type" =>$type,
851: "imagechoice.$id.formname" =>$form,
852: "imagechoice.$id.file" =>$bgfile,
853: "imagechoice.$id.formcoord" =>$element);
854: if ($height) {
855: $data{"imagechoice.$id.formheight"}=$height.'_'.
856: $Apache::edit::bgimgsrccurdepth;
857: }
858: if ($width) {
859: $data{"imagechoice.$id.formwidth"}=$width.'_'.
860: $Apache::edit::bgimgsrccurdepth;
861: }
862: &Apache::lonnet::appenv(%data);
863: my $text="Enter Coordinates";
864: if ($type eq 'polygon') { $text='Create Polygon Data'; }
865: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
866: return $result;
867: }
868:
869: sub deletecoorddata {
870: &Apache::lonnet::delenv("imagechoice\\.");
871: }
872:
873: #----------------------------------------------------- browse
874: sub browse {
875: # insert a link to call up the filesystem browser (lonindexer)
876: my ($id, $mode, $titleid) = @_;
877: my $form = 'lonhomework';
878: my $element;
879: if (! defined($mode) || $mode eq 'attribute') {
880: $element = &escape("$id\_$Apache::lonxml::curdepth");
881: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
882: $element = &escape('homework_edit_'.
883: $Apache::lonxml::curdepth);
884: }
885: my $titleelement;
886: if ($titleid) {
887: $titleelement=",'','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
888: }
889: my $result = <<"ENDBUTTON";
890: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
891: ENDBUTTON
892: return $result;
893: }
894:
895: #----------------------------------------------------- browse
896: sub search {
897: # insert a link to call up the filesystem browser (lonindexer)
898: my ($id, $mode, $titleid) = @_;
899: my $form = 'lonhomework';
900: my $element;
901: if (! defined($mode) || $mode eq 'attribute') {
902: $element = &escape("$id\_$Apache::lonxml::curdepth");
903: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
904: $element = &escape('homework_edit_'.
905: $Apache::lonxml::curdepth);
906: }
907: my $titleelement;
908: if ($titleid) {
909: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
910: }
911: my $result = <<"ENDBUTTON";
912: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
913: ENDBUTTON
914: return $result;
915: }
916:
917:
918: 1;
919: __END__
920:
921: =head1 NAME
922:
923: Apache::edit - edit mode helpers
924:
925: =head1 SYNOPSIS
926:
927: Invoked by many homework and xml related modules.
928:
929: &Apache::edit::SUBROUTINENAME(ARGUMENTS);
930:
931: =head1 INTRODUCTION
932:
933: This module outputs HTML syntax helpful for the rendering of edit
934: mode interfaces.
935:
936: This is part of the LearningOnline Network with CAPA project
937: described at http://www.lon-capa.org.
938:
939: =head1 HANDLER SUBROUTINE
940:
941: There is no handler subroutine.
942:
943: =head1 OTHER SUBROUTINES
944:
945: =over 4
946:
947: =item *
948:
949: initialize_edit() : initialize edit (set colordepth to zero)
950:
951: =item *
952:
953: tag_start($target,$token,$description) : provide deletion and insertion lists
954: for the manipulation of a start tag; return a scalar string
955:
956: =item *
957:
958: tag_end($target,$token,$description) : ending syntax corresponding to
959: &tag_start. return a scalar string.
960:
961: =item *
962:
963: start_table($token) : start table; update colordepth; return scalar string.
964:
965: =item *
966:
967: end_table() : reduce color depth; end table; return scalar string
968:
969: =item *
970:
971: start_spanning_row() : start a new table row spanning the 'edit' environment.
972:
973: =item *
974:
975: start_row() : start a new table row and element.
976:
977: =item *
978:
979: end_row() : end current table element and row.
980:
981: =item *
982:
983: movebuttons($target,$token) : move-up and move-down buttons; return scalar
984: string
985:
986: =item *
987:
988: deletelist($target,$token) : provide a yes option in an HTML select element;
989: return scalar string
990:
991: =item *
992:
993: handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
994: $style) : respond to a user delete request by passing relevant stack
995: and array information to various rendering functions; return a scalar string
996:
997: =item *
998:
999: get_insert_list($token) : provide an insertion list based on possibilities
1000: from lonxml; return a scalar string
1001:
1002: =item *
1003:
1004: insertlist($target,$token) : api that uses get_insert_list;
1005: return a scalar string
1006:
1007: =item *
1008:
1009: handleinsert($token) : provide an insertion list based on possibilities
1010: from lonxml; return a scalar string
1011:
1012: =item *
1013:
1014: get_insert_list($token) : provide an insertion list based on possibilities
1015: from lonxml; return a scalar string
1016:
1017: =item *
1018: browse($elementname) : provide a link which will open up the filesystem
1019: browser (lonindexer) and, once a file is selected, place the result in
1020: the form element $elementname.
1021:
1022: =item *
1023: search($elementname) : provide a link which will open up the filesystem
1024: searcher (lonsearchcat) and, once a file is selected, place the result in
1025: the form element $elementname.
1026:
1027: =item *
1028: editline(tag,data,description,size): Provide a <input type="text" ../> for
1029: single-line text entry. This is to be used for text enclosed by tags, not
1030: arguements/parameters associated with a tag.
1031:
1032: =back
1033:
1034: incomplete...
1035:
1036: =cut
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