Annotation of loncom/homework/edit.pm, revision 1.81
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
1.25 albertel 3: #
1.81 ! albertel 4: # $Id: edit.pm,v 1.80 2004/02/17 22:02:43 albertel 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: #
1.1 albertel 28: # 3/20 Guy
1.27 matthew 29: # 01/10/02 Matthew
1.29 matthew 30: # 03/06/02 Matthew
1.1 albertel 31: package Apache::edit;
32:
33: use strict;
1.32 albertel 34: use Apache::lonnet();
35: use HTML::Entities();
1.71 www 36: use Apache::lonlocal;
1.1 albertel 37:
1.10 albertel 38: # Global Vars
39: # default list of colors to use in editing
40: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
41: # depth of nesting of edit
42: $Apache::edit::colordepth=0;
1.38 www 43: @Apache::edit::inserttag=();
1.49 www 44: # image-type responses: active background image and curdepth at definition
45: $Apache::edit::bgimgsrc='';
46: $Apache::edit::bgimgsrccurdepth='';
1.10 albertel 47:
48: sub initialize_edit {
1.63 albertel 49: $Apache::edit::colordepth=0;
50: @Apache::edit::inserttag=();
1.10 albertel 51: }
52:
1.1 albertel 53: sub tag_start {
1.63 albertel 54: my ($target,$token,$description) = @_;
55: my $result='';
56: if ($target eq "edit") {
57: my $tag=$token->[1];
58: if (!$description) {
59: $description=&Apache::lonxml::description($token);
60: if (!$description) { $description="<$tag>"; }
61: }
62: $result.= &start_table($token)."<tr><td>$description</td>
63: <td>Delete".
64: &deletelist($target,$token)
65: ."</td>
66: <td>".
67: &insertlist($target,$token);
1.27 matthew 68: #<td>".
1.22 albertel 69: # &movebuttons($target,$token).
70: # "</tr><tr><td colspan=\"3\">\n";
1.66 matthew 71: my @help = Apache::lonxml::helpinfo($token);
1.63 albertel 72: if ($help[0]) {
73: $result .= '<td align="right" valign="top">' .
74: Apache::loncommon::help_open_topic(@help) .
75: '</td>';
76: } else { $result .= "<td> </td>"; }
77: $result .= &end_row().&start_spanning_row();
78: }
79: return $result;
1.1 albertel 80: }
81:
82: sub tag_end {
1.63 albertel 83: my ($target,$token,$description) = @_;
84: my $result='';
85: if ($target eq 'edit') {
86: $result.="</td></tr>".&end_table()."\n";
87: }
88: return $result;
1.4 albertel 89: }
1.1 albertel 90:
1.10 albertel 91: sub start_table {
1.63 albertel 92: my ($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{"$testtag.num"};
98: if (defined($tagnum)) { last; }
99: }
100: if (!defined ($tagnum)) {$tagnum=$Apache::lonxml::insertlist{"$tag.num"};}
101: my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
102: if (!defined($color)) {
103: $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
104: }
105: $Apache::edit::colordepth++;
106: push(@Apache::edit::inserttag,$token->[1]);
107: my $result='<div align="right">';
108: $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="5" cellpadding="3">';
109: return $result;
1.10 albertel 110: }
111:
112: sub end_table {
1.63 albertel 113: $Apache::edit::colordepth--;
114: my $result='</table></div>';
115: $result.="<table><tr><td>";
116:
117: my ($tagname,$closingtag);
118: if (defined($Apache::edit::inserttag[-2])) {
119: $tagname=$Apache::edit::inserttag[-2];
120: } else {$tagname='problem';}
121: if (defined($Apache::edit::inserttag[-1])) {
122: $closingtag=$Apache::edit::inserttag[-1];
123: }
124: $result.=&innerinsertlist('edit',$tagname,$closingtag).
125: "</td></tr></table>";
126: pop(@Apache::edit::inserttag);
127: return $result;
1.10 albertel 128: }
129:
1.58 bowersj2 130: sub start_spanning_row { return '<tr><td colspan="4" bgcolor="#DDDDDD">';}
1.41 www 131: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
1.27 matthew 132: sub end_row { return '</td></tr>'; }
133:
1.22 albertel 134: sub movebuttons {
1.63 albertel 135: my ($target,$token) = @_;
136: my $result='<input type="submit" name="moveup.'.
137: $Apache::lonxml::curdepth.'" value="Move Up" />';
138: $result.='<input type="submit" name="movedown.'.
139: $Apache::lonxml::curdepth.'" value="Move Down" />';
140: return $result;
1.22 albertel 141: }
142:
1.8 albertel 143: sub deletelist {
1.63 albertel 144: my ($target,$token) = @_;
145: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14 albertel 146: <option></option>
147: <option>Yes</option>
1.8 albertel 148: </select>";
1.63 albertel 149: return $result;
1.8 albertel 150: }
151:
1.14 albertel 152: sub handle_delete {
1.63 albertel 153: if (!$ENV{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
154: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
155: my $result=0;
156: if ($space) {
157: my $sub1="$space\:\:delete_$token->[1]";
158: {
159: no strict 'refs';
160: if (defined &$sub1) {
161: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
162: }
163: }
164: }
165: if (!$result) {
166: my $endtag='/'.$token->[1];
167: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
168: $$parser['-1']->get_token();
169: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
170: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
171: }
172: return 1;
1.14 albertel 173: }
174:
1.7 albertel 175: sub get_insert_list {
1.63 albertel 176: my ($tagname) = @_;
177: my $result='';
178: my @tagnums= ();
179: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
180: if ($Apache::lonxml::insertlist{"$tagname.which"}) {
181: push (@tagnums, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
182: }
183: foreach my $namespace (@Apache::lonxml::namespace) {
184: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
185: push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
186: }
187: }
188: if (@tagnums) {
189: my %options;
190: foreach my $tagnum (@tagnums) {
191: my $descrip=$Apache::lonxml::insertlist{"$tagnum.description"};
192: $options{$descrip} ="<option value=\"$tagnum\">".
193: $descrip."</option>\n";
194: }
195: foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
196: if ($result) { $result='<option selected="on"></option>'.$result; }
197: }
198: return $result;
1.5 albertel 199: }
200:
1.4 albertel 201: sub insertlist {
1.63 albertel 202: my ($target,$token) = @_;
203: return &innerinsertlist($target,$token->[1]);
1.38 www 204: }
205:
206: sub innerinsertlist {
1.63 albertel 207: my ($target,$tagname,$closingtag) = @_;
208: my $result;
209: my $after='';
210: if ($closingtag) {
211: $after='_after_'.$closingtag;
212: }
213: if ($target eq 'edit') {
214: my $optionlist= &get_insert_list($tagname);
215: if ($optionlist) {
216: $result = "Insert:
217: <select name=\"insert$after\_$Apache::lonxml::curdepth\">
218: $optionlist
219: </select>"
220: } else {
221: $result=" ";
222: }
1.6 albertel 223: }
1.63 albertel 224: return $result;
1.6 albertel 225: }
226:
1.7 albertel 227: sub handle_insert {
1.63 albertel 228: if ($ENV{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
229: my $result;
230: my $tagnum = $ENV{"form.insert_$Apache::lonxml::curdepth"};
231: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
232: if ($func eq 'default') {
233: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
234: my $namespace;
235: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
236: $result.="\n<$newtag>\n</$newtag>";
1.15 albertel 237: } else {
1.63 albertel 238: if (defined(&$func)) {
239: {
240: no strict 'refs';
241: $result.=&$func();
242: }
243: } else {
244: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
245: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined.");
246: }
1.38 www 247: }
1.63 albertel 248: return $result;
1.38 www 249: }
250:
251: sub handle_insertafter {
1.63 albertel 252: my $tagname=shift;
253: if ($ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '')
254: { return ''; }
255: my $result;
256: my $tagnum =$ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
257: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
258: if ($func eq 'default') {
259: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
260: my $namespace;
261: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
262: $result.="\n<$newtag>\n</$newtag>";
1.38 www 263: } else {
1.63 albertel 264: if (defined(&$func)) {
265: {
266: no strict 'refs';
267: $result.=&$func();
268: }
269: } else {
270: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
271: &Apache::lonxml::error("Unable to insert (after) tag $newtag, $func was not defined. ($tagname $tagnum)");
272: }
1.5 albertel 273: }
1.63 albertel 274: return $result;
1.69 albertel 275: }
276:
277: sub insert_img {
278: return '
279: <img />';
1.16 albertel 280: }
281:
282: sub insert_responseparam {
1.63 albertel 283: return '
1.16 albertel 284: <responseparam />';
1.5 albertel 285: }
286:
1.24 albertel 287: sub insert_formularesponse {
1.63 albertel 288: return '
1.24 albertel 289: <formularesponse answer="" samples="">
290: <textline />
291: <hintgroup>
1.78 www 292: <startouttext /><endouttext />
1.24 albertel 293: </hintgroup>
294: </formularesponse>';
295: }
296:
1.15 albertel 297: sub insert_numericalresponse {
1.63 albertel 298: return '
1.15 albertel 299: <numericalresponse answer="">
300: <textline />
301: <hintgroup>
1.78 www 302: <startouttext /><endouttext />
1.15 albertel 303: </hintgroup>
304: </numericalresponse>';
305: }
306:
1.18 albertel 307: sub insert_stringresponse {
1.63 albertel 308: return '
1.18 albertel 309: <stringresponse answer="" type="">
310: <textline />
311: <hintgroup>
1.78 www 312: <startouttext /><endouttext />
1.18 albertel 313: </hintgroup>
314: </stringresponse>';
1.36 albertel 315: }
316:
317: sub insert_essayresponse {
1.63 albertel 318: return '
1.36 albertel 319: <essayresponse>
320: <textfield></textfield>
321: </essayresponse>';
1.54 albertel 322: }
323:
324: sub insert_imageresponse {
1.63 albertel 325: return '
1.54 albertel 326: <imageresponse max="1">
327: <foilgroup>
328: </foilgroup>
329: <hintgroup>
1.78 www 330: <startouttext /><endouttext />
1.54 albertel 331: </hintgroup>
332: </imageresponse>';
1.18 albertel 333: }
334:
1.7 albertel 335: sub insert_optionresponse {
1.63 albertel 336: return '
1.7 albertel 337: <optionresponse max="10">
338: <foilgroup options="">
339: </foilgroup>
1.14 albertel 340: <hintgroup>
1.78 www 341: <startouttext /><endouttext />
1.14 albertel 342: </hintgroup>
1.7 albertel 343: </optionresponse>';
1.1 albertel 344: }
345:
1.72 albertel 346: sub insert_organicresponse {
347: return '
348: <organicresponse>
349: <textline />
350: <hintgroup>
1.78 www 351: <startouttext /><endouttext />
1.72 albertel 352: </hintgroup>
353: </organicresponse>';
354: }
355:
356: sub insert_organicstructure {
357: return '
358: <organicstructure />
359: ';
360: }
361:
1.23 albertel 362: sub insert_radiobuttonresponse {
1.63 albertel 363: return '
1.23 albertel 364: <radiobuttonresponse max="10">
365: <foilgroup>
366: </foilgroup>
367: <hintgroup>
1.78 www 368: <startouttext /><endouttext />
1.23 albertel 369: </hintgroup>
370: </radiobuttonresponse>';
1.72 albertel 371: }
372:
373: sub insert_reactionresponse {
374: return '
375: <reactionresponse>
376: <textline />
377: <hintgroup>
1.78 www 378: <startouttext /><endouttext />
1.72 albertel 379: </hintgroup>
380: </reactionresponse>';
1.43 albertel 381: }
382:
383: sub insert_rankresponse {
1.63 albertel 384: return '
1.43 albertel 385: <rankresponse max="10">
386: <foilgroup options="">
387: </foilgroup>
388: <hintgroup>
1.78 www 389: <startouttext /><endouttext />
1.43 albertel 390: </hintgroup>
391: </rankresponse>';
1.23 albertel 392: }
393:
1.44 albertel 394: sub insert_matchresponse {
1.63 albertel 395: return '
1.44 albertel 396: <matchresponse max="10">
397: <foilgroup options="">
398: <itemgroup>
399: </itemgroup>
400: </foilgroup>
401: <hintgroup>
1.78 www 402: <startouttext /><endouttext />
1.44 albertel 403: </hintgroup>
404: </matchresponse>';
405: }
406:
1.21 albertel 407: sub insert_displayduedate { return '<displayduedate />'; }
408: sub insert_displaytitle { return '<displaytitle />'; }
1.22 albertel 409: sub insert_hintpart {
1.63 albertel 410: return '
1.22 albertel 411: <hintpart on="default">
412: <startouttext/>
413: <endouttext />
414: </hintpart>';
1.67 albertel 415: }
416:
417: sub insert_hintgroup {
418: return '
419: <hintgroup>
1.78 www 420: <startouttext /><endouttext />
1.67 albertel 421: </hintgroup>';
1.22 albertel 422: }
423:
424: sub insert_numericalhint {
1.63 albertel 425: return '
1.22 albertel 426: <numericalhint>
427: </numericalhint>';
1.46 albertel 428: }
429:
430: sub insert_stringhint {
1.63 albertel 431: return '
1.46 albertel 432: <stringhint>
433: </stringhint>';
434: }
435:
436: sub insert_formulahint {
1.63 albertel 437: return '
1.46 albertel 438: <formulahint>
439: </formulahint>';
1.37 albertel 440: }
441:
442: sub insert_radiobuttonhint {
1.63 albertel 443: return '
1.37 albertel 444: <radiobuttonhint>
445: </radiobuttonhint>';
1.50 albertel 446: }
447:
448: sub insert_optionhint {
1.63 albertel 449: return '
1.50 albertel 450: <optionhint>
451: </optionhint>';
1.22 albertel 452: }
1.21 albertel 453:
1.23 albertel 454: sub insert_startouttext {
1.78 www 455: return "<startouttext /><endouttext />";
1.23 albertel 456: }
457:
458: sub insert_script {
1.78 www 459: return "\n<script type=\"loncapa/perl\"></script>";
1.23 albertel 460: }
461:
1.25 albertel 462: sub textarea_sizes {
1.63 albertel 463: my ($data)=@_;
464: my $count=0;
465: my $maxlength=-1;
466: foreach (split ("\n", $$data)) {
467: $count+=int(length($_)/79);
468: $count++;
469: if (length($_) > $maxlength) { $maxlength = length($_); }
470: }
471: my $rows = $count;
472: my $cols = $maxlength;
473: return ($rows,$cols);
1.25 albertel 474: }
475:
1.32 albertel 476: sub editline {
1.31 matthew 477: my ($tag,$data,$description,$size)=@_;
1.81 ! albertel 478: $data=&HTML::Entities::encode($data,'<>&"');
1.31 matthew 479: if ($description) { $description="<br />".$description."<br />"; }
480: my $result = <<"END";
481: $description
482: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
483: value="$data" size="$size" />
484: END
485: return $result;
486: }
487:
1.2 albertel 488: sub editfield {
1.63 albertel 489: my ($tag,$data,$description,$minwidth,$minheight)=@_;
1.22 albertel 490:
1.63 albertel 491: my ($rows,$cols)=&textarea_sizes(\$data);
492: if ($cols > 80) { $cols = 80; }
493: if ($cols < $minwidth ) { $cols = $minwidth; }
494: if ($rows < $minheight) { $rows = $minheight; }
495: if ($description) { $description="<br />".$description."<br />"; }
496: return $description."\n".' <textarea rows="'.$rows.
497: '" cols="'.$cols.'" name="homework_edit_'.
498: $Apache::lonxml::curdepth.'">'.
1.81 ! albertel 499: &HTML::Entities::encode($data,'<>&"').'</textarea>'."\n";
1.2 albertel 500: }
501:
502: sub modifiedfield {
1.70 albertel 503: my ($endtag,$parser) = @_;
1.63 albertel 504: my $result;
1.3 albertel 505: # foreach my $envkey (sort keys %ENV) {
506: # &Apache::lonxml::debug("$envkey ---- $ENV{$envkey}");
507: # }
508: # &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
509: # &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});
1.63 albertel 510: $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70 albertel 511: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
512: # textareas throw away intial \n
513: if ($bodytext=~/^\n/) { $result="\n".$result; }
1.63 albertel 514: return $result;
1.2 albertel 515: }
516:
1.15 albertel 517: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 518: # side-effects, will modify the $token if new values are found
519: sub get_new_args {
1.61 albertel 520: my ($token,$parstack,$safeeval,@args)=@_;
521: my $rebuild=0;
522: foreach my $arg (@args) {
1.63 albertel 523: #just want the string that it was set to
524: my $value=$token->[2]->{$arg};
525: my $element=&html_element_name($arg);
526: my $newvalue=$ENV{"form.$element"};
527: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
528: if (defined($newvalue) && $value ne $newvalue) {
529: if (ref($newvalue) eq 'ARRAY') {
530: $token->[2]->{$arg}=join(',',@$newvalue);
531: } else {
532: $token->[2]->{$arg}=$newvalue;
533: }
1.79 albertel 534: $rebuild=1;
535: } elsif (!defined($newvalue) && defined($value)) {
536: delete($token->[2]->{$arg});
1.63 albertel 537: $rebuild=1;
1.61 albertel 538: }
1.12 albertel 539: }
1.63 albertel 540: return $rebuild;
1.12 albertel 541: }
542:
1.15 albertel 543: # looks for /> on start tags
1.12 albertel 544: sub rebuild_tag {
1.63 albertel 545: my ($token) = @_;
546: my $result;
547: if ($token->[0] eq 'S') {
548: $result = '<'.$token->[1];
549: while (my ($key,$val)= each(%{$token->[2]})) {
550: $val=~s:^\s+|\s+$::g;
551: $val=~s:"::g; #"
552: &Apache::lonxml::debug("setting :$key: to :$val:");
553: $result.=' '.$key.'="'.$val.'"';
554: }
555: if ($token->[4] =~ m:/>$:) {
556: $result.=' />';
557: } else {
558: $result.='>';
559: }
560: } elsif ( $token->[0] eq 'E' ) {
561: $result = '</'.$token->[1].'>';
1.12 albertel 562: }
1.63 albertel 563: return $result;
1.12 albertel 564: }
1.13 albertel 565:
1.47 matthew 566: sub html_element_name {
567: my ($name) = @_;
1.48 albertel 568: return $name.'_'.$Apache::lonxml::curdepth;
569: }
570:
571: sub hidden_arg {
572: my ($name,$token) = @_;
573: my $result;
574: my $arg=$token->[2]{$name};
575: $result='<input name="'.&html_element_name($name).
576: '" type="hidden" value="'.$arg.'" />';
1.61 albertel 577: return $result;
578: }
579:
580: sub checked_arg {
581: my ($description,$name,$list,$token) = @_;
582: my $result;
583: my $optionlist="";
584: my $allselected=$token->[2]{$name};
1.71 www 585: $result=&mt($description);
1.61 albertel 586: foreach my $option (@$list) {
587: my ($value,$text);
588: if ( ref($option) eq 'ARRAY') {
589: $value='value="'.$$option[0].'"';
590: $text=$$option[1];
591: $option=$$option[0];
592: } else {
593: $text=$option;
594: $value='value="'.$option.'"';
595: }
596: $result.="<nobr><input type='checkbox' $value name='".
597: &html_element_name($name)."'";
598: foreach my $selected (split(/,/,$allselected)) {
599: if ( $selected eq $option ) {
600: $result.=" checked='on' ";
601: last;
602: }
603: }
604: $result.=" />$text</nobr>\n";
605: }
1.48 albertel 606: return $result;
1.47 matthew 607: }
608:
1.13 albertel 609: sub text_arg {
1.63 albertel 610: my ($description,$name,$token,$size) = @_;
611: my $result;
612: if (!defined $size) { $size=20; }
613: my $arg=$token->[2]{$name};
1.71 www 614: $result=&mt($description).' <input name="'.&html_element_name($name).
1.63 albertel 615: '" type="text" value="'.$arg.'" size="'.$size.'" />';
616: return '<nobr>'.$result.'</nobr>';
1.13 albertel 617: }
618:
619: sub select_arg {
1.39 albertel 620: my ($description,$name,$list,$token) = @_;
621: my $result;
622: my $optionlist="";
623: my $selected=$token->[2]{$name};
624: foreach my $option (@$list) {
1.64 albertel 625: my ($text,$value);
1.39 albertel 626: if ( ref($option) eq 'ARRAY') {
627: $value='value="'.$$option[0].'"';
1.64 albertel 628: $text=$$option[1];
629: $option=$$option[0];
1.39 albertel 630: } else {
1.64 albertel 631: $text=$option;
1.39 albertel 632: $value='value="'.$option.'"';
633: }
634: if ( $selected eq $option ) {
1.64 albertel 635: $optionlist.="<option $value selected=\"on\">$text</option>\n";
1.39 albertel 636: } else {
1.64 albertel 637: $optionlist.="<option $value >$text</option>\n";
1.39 albertel 638: }
1.13 albertel 639: }
1.57 albertel 640: $result.='<nobr>'.$description.' <select name="'.
641: &html_element_name($name).'">
1.13 albertel 642: '.$optionlist.'
1.57 albertel 643: </select></nobr>';
1.39 albertel 644: return $result;
1.13 albertel 645: }
646:
1.19 albertel 647: sub select_or_text_arg {
1.39 albertel 648: my ($description,$name,$list,$token,$size) = @_;
649: my $result;
650: my $optionlist="";
651: my $found=0;
652: my $selected=$token->[2]{$name};
653: foreach my $option (@$list) {
1.64 albertel 654: my ($text,$value);
1.39 albertel 655: if ( ref($option) eq 'ARRAY') {
656: $value='value="'.$$option[0].'"';
1.64 albertel 657: $text=$$option[1];
658: $option=$$option[0];
1.39 albertel 659: } else {
1.64 albertel 660: $text=$option;
1.39 albertel 661: $value='value="'.$option.'"';
662: }
663: if ( $selected eq $option ) {
1.64 albertel 664: $optionlist.="<option $value selected=\"on\">$text</option>\n";
1.39 albertel 665: $found=1;
666: } else {
1.64 albertel 667: $optionlist.="<option $value>$text</option>\n";
1.39 albertel 668: }
669: }
1.60 www 670: $optionlist.="<option value=\"TYPEDINVALUE\"".
671: ((!$found)?' selected="on"':'').
1.73 www 672: ">".&mt('Type-in value')."</option>\n";
1.60 www 673: #
674: my $element=&html_element_name($name);
675: my $selectelement='select_list_'.$element;
676: my $typeinelement='type_in_'.$element;
677: my $typeinvalue=($found?'':$selected);
678: #
679: my $hiddenvalue='this.form.'.$element.'.value';
680: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
681: my $selectedvalue='this.form.'.$selectelement.
682: '.options['.$selectedindex.'].value';
683: my $typedinvalue='this.form.'.$typeinelement.'.value';
684: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71 www 685: $description=&mt($description);
1.60 www 686: #
687: return (<<ENDSELECTORTYPE);
688: <nobr>
689: $description
690: <select name="$selectelement"
1.74 albertel 691: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60 www 692: $optionlist
693: </select>
694: <input type="text" size="$size" name="$typeinelement"
695: value="$typeinvalue"
696: onChange="$hiddenvalue=$typedinvalue;"
697: onFocus="$selectedindex=$selecttypeinindex-1;" />
698: <input type="hidden" name="$element" value="$selected" />
699: </nobr>
700: ENDSELECTORTYPE
1.19 albertel 701: }
1.29 matthew 702:
1.49 www 703: #----------------------------------------------------- image coordinates
704: # single image coordinates, x, y
705: sub entercoords {
1.80 albertel 706: my ($idx,$idy,$mode,$width,$height) = @_;
1.49 www 707: unless ($Apache::edit::bgimgsrc) { return ''; }
708: if ($idx) { $idx.='_'; }
709: if ($idy) { $idy.='_'; }
1.80 albertel 710: my $bgfile=&Apache::lonnet::escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49 www 711: my $form = 'lonhomework';
712: my $element;
713: if (! defined($mode) || $mode eq 'attribute') {
714: $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth");
715: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
716: $element = &Apache::lonnet::escape('homework_edit_'.
717: $Apache::lonxml::curdepth);
718: }
1.80 albertel 719: my $id=$Apache::lonxml::curdepth;
720: my %data=("imagechoice.$id.type" =>'point',
721: "imagechoice.$id.formname" =>$form,
722: "imagechoice.$id.formx" =>"$idx$element",
723: "imagechoice.$id.formy" =>"$idy$element",
724: "imagechoice.$id.file" =>$bgfile,
725: "imagechoice.$id.formcoord" =>$element);
1.49 www 726: if ($height) {
1.80 albertel 727: $data{"imagechoice.$id.formheight"}=$height.'_'.
728: $Apache::edit::bgimgsrccurdepth;
1.49 www 729: }
730: if ($width) {
1.80 albertel 731: $data{"imagechoice.$id.formwidth"}=$width.'_'.
732: $Apache::edit::bgimgsrccurdepth;
1.49 www 733: }
1.80 albertel 734: &Apache::lonnet::appenv(%data);
735: my $text="Click Coordinates";
736: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 737: return $result;
738: }
739:
1.77 albertel 740: # coordinates (x1,y1)-(x2,y2)...
741: # mode can be either box, or polygon
742: sub entercoord {
743: my ($idx,$mode,$width,$height,$type) = @_;
1.49 www 744: unless ($Apache::edit::bgimgsrc) { return ''; }
1.76 albertel 745: my $bgfile=&Apache::lonnet::escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75 albertel 746: my $form = 'lonhomework';
747: my $element;
748: if (! defined($mode) || $mode eq 'attribute') {
1.77 albertel 749: $element = &Apache::lonnet::escape("$idx\_$Apache::lonxml::curdepth");
1.75 albertel 750: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
751: $element = &Apache::lonnet::escape('homework_edit_'.
752: $Apache::lonxml::curdepth);
753: }
1.76 albertel 754: my $id=$Apache::lonxml::curdepth;
1.77 albertel 755: my %data=("imagechoice.$id.type" =>$type,
1.76 albertel 756: "imagechoice.$id.formname" =>$form,
757: "imagechoice.$id.file" =>$bgfile,
758: "imagechoice.$id.formcoord" =>$element);
1.75 albertel 759: if ($height) {
1.76 albertel 760: $data{"imagechoice.$id.formheight"}=$height.'_'.
761: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 762: }
763: if ($width) {
1.76 albertel 764: $data{"imagechoice.$id.formwidth"}=$width.'_'.
765: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 766: }
767: &Apache::lonnet::appenv(%data);
1.77 albertel 768: my $text="Enter Coordinates";
769: if ($type eq 'polygon') { $text='Create Polygon Data'; }
770: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 771: return $result;
772: }
1.76 albertel 773:
774: sub deletecoorddata {
775: &Apache::lonnet::delenv("imagechoice\\.");
776: }
777:
1.29 matthew 778: #----------------------------------------------------- browse
779: sub browse {
780: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 781: my ($id, $mode, $titleid) = @_;
1.29 matthew 782: my $form = 'lonhomework';
1.42 matthew 783: my $element;
784: if (! defined($mode) || $mode eq 'attribute') {
1.49 www 785: $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
1.42 matthew 786: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
787: $element = &Apache::lonnet::escape('homework_edit_'.
1.68 albertel 788: $Apache::lonxml::curdepth);
789: }
790: my $titleelement;
791: if ($titleid) {
792: $titleelement=",'','','".&Apache::lonnet::escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.42 matthew 793: }
1.29 matthew 794: my $result = <<"ENDBUTTON";
1.68 albertel 795: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29 matthew 796: ENDBUTTON
797: return $result;
798: }
799:
1.30 matthew 800: #----------------------------------------------------- browse
801: sub search {
802: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 803: my ($id, $mode, $titleid) = @_;
1.30 matthew 804: my $form = 'lonhomework';
1.49 www 805: my $element;
806: if (! defined($mode) || $mode eq 'attribute') {
807: $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
808: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
809: $element = &Apache::lonnet::escape('homework_edit_'.
810: $Apache::lonxml::curdepth);
811: }
1.68 albertel 812: my $titleelement;
813: if ($titleid) {
814: $titleelement=",'".&Apache::lonnet::escape("$titleid\_$Apache::lonxml::curdepth")."'";
815: }
1.30 matthew 816: my $result = <<"ENDBUTTON";
1.68 albertel 817: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30 matthew 818: ENDBUTTON
819: return $result;
820: }
821:
822:
1.1 albertel 823: 1;
824: __END__
1.26 harris41 825:
826: =head1 NAME
827:
828: Apache::edit - edit mode helpers
829:
830: =head1 SYNOPSIS
831:
832: Invoked by many homework and xml related modules.
833:
834: &Apache::edit::SUBROUTINENAME(ARGUMENTS);
835:
836: =head1 INTRODUCTION
837:
838: This module outputs HTML syntax helpful for the rendering of edit
839: mode interfaces.
840:
841: This is part of the LearningOnline Network with CAPA project
842: described at http://www.lon-capa.org.
843:
844: =head1 HANDLER SUBROUTINE
845:
846: There is no handler subroutine.
847:
848: =head1 OTHER SUBROUTINES
849:
850: =over 4
851:
852: =item *
853:
854: initialize_edit() : initialize edit (set colordepth to zero)
855:
856: =item *
857:
858: tag_start($target,$token,$description) : provide deletion and insertion lists
859: for the manipulation of a start tag; return a scalar string
860:
861: =item *
862:
863: tag_end($target,$token,$description) : ending syntax corresponding to
864: &tag_start. return a scalar string.
865:
866: =item *
867:
868: start_table($token) : start table; update colordepth; return scalar string.
869:
870: =item *
871:
872: end_table() : reduce color depth; end table; return scalar string
1.27 matthew 873:
874: =item *
875:
876: start_spanning_row() : start a new table row spanning the 'edit' environment.
877:
878: =item *
879:
880: start_row() : start a new table row and element.
881:
882: =item *
883:
884: end_row() : end current table element and row.
1.26 harris41 885:
886: =item *
887:
888: movebuttons($target,$token) : move-up and move-down buttons; return scalar
889: string
890:
891: =item *
892:
893: deletelist($target,$token) : provide a yes option in an HTML select element;
894: return scalar string
895:
896: =item *
897:
898: handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
899: $style) : respond to a user delete request by passing relevant stack
900: and array information to various rendering functions; return a scalar string
901:
902: =item *
903:
904: get_insert_list($token) : provide an insertion list based on possibilities
905: from lonxml; return a scalar string
906:
907: =item *
908:
909: insertlist($target,$token) : api that uses get_insert_list;
910: return a scalar string
911:
912: =item *
913:
914: handleinsert($token) : provide an insertion list based on possibilities
915: from lonxml; return a scalar string
916:
917: =item *
918:
919: get_insert_list($token) : provide an insertion list based on possibilities
920: from lonxml; return a scalar string
1.29 matthew 921:
922: =item *
923: browse($elementname) : provide a link which will open up the filesystem
924: browser (lonindexer) and, once a file is selected, place the result in
1.30 matthew 925: the form element $elementname.
926:
927: =item *
928: search($elementname) : provide a link which will open up the filesystem
929: searcher (lonsearchcat) and, once a file is selected, place the result in
1.29 matthew 930: the form element $elementname.
1.31 matthew 931:
1.34 harris41 932: =item *
1.32 albertel 933: editline(tag,data,description,size): Provide a <input type="text" ../> for
1.31 matthew 934: single-line text entry. This is to be used for text enclosed by tags, not
935: arguements/parameters associated with a tag.
1.26 harris41 936:
937: =back
938:
939: incomplete...
940:
941: =cut
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