Annotation of loncom/homework/edit.pm, revision 1.86
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
1.25 albertel 3: #
1.86 ! albertel 4: # $Id: edit.pm,v 1.85 2004/07/27 23:35:33 www Exp $
1.25 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.82 www 28:
1.1 albertel 29: package Apache::edit;
30:
31: use strict;
1.32 albertel 32: use Apache::lonnet();
33: use HTML::Entities();
1.71 www 34: use Apache::lonlocal;
1.1 albertel 35:
1.10 albertel 36: # Global Vars
37: # default list of colors to use in editing
38: @Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
39: # depth of nesting of edit
40: $Apache::edit::colordepth=0;
1.38 www 41: @Apache::edit::inserttag=();
1.49 www 42: # image-type responses: active background image and curdepth at definition
43: $Apache::edit::bgimgsrc='';
44: $Apache::edit::bgimgsrccurdepth='';
1.10 albertel 45:
46: sub initialize_edit {
1.63 albertel 47: $Apache::edit::colordepth=0;
48: @Apache::edit::inserttag=();
1.10 albertel 49: }
50:
1.1 albertel 51: sub tag_start {
1.63 albertel 52: my ($target,$token,$description) = @_;
53: my $result='';
54: if ($target eq "edit") {
55: my $tag=$token->[1];
56: if (!$description) {
57: $description=&Apache::lonxml::description($token);
58: if (!$description) { $description="<$tag>"; }
59: }
60: $result.= &start_table($token)."<tr><td>$description</td>
61: <td>Delete".
62: &deletelist($target,$token)
63: ."</td>
64: <td>".
65: &insertlist($target,$token);
1.27 matthew 66: #<td>".
1.22 albertel 67: # &movebuttons($target,$token).
68: # "</tr><tr><td colspan=\"3\">\n";
1.66 matthew 69: my @help = Apache::lonxml::helpinfo($token);
1.63 albertel 70: if ($help[0]) {
71: $result .= '<td align="right" valign="top">' .
72: Apache::loncommon::help_open_topic(@help) .
73: '</td>';
74: } else { $result .= "<td> </td>"; }
75: $result .= &end_row().&start_spanning_row();
76: }
77: return $result;
1.1 albertel 78: }
79:
80: sub tag_end {
1.63 albertel 81: my ($target,$token,$description) = @_;
82: my $result='';
83: if ($target eq 'edit') {
84: $result.="</td></tr>".&end_table()."\n";
85: }
86: return $result;
1.4 albertel 87: }
1.1 albertel 88:
1.10 albertel 89: sub start_table {
1.63 albertel 90: my ($token)=@_;
91: my $tag = $token->[1];
92: my $tagnum;
93: foreach my $namespace (reverse @Apache::lonxml::namespace) {
94: my $testtag=$namespace.'::'.$tag;
95: $tagnum=$Apache::lonxml::insertlist{"$testtag.num"};
96: if (defined($tagnum)) { last; }
97: }
98: if (!defined ($tagnum)) {$tagnum=$Apache::lonxml::insertlist{"$tag.num"};}
99: my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
100: if (!defined($color)) {
101: $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
102: }
103: $Apache::edit::colordepth++;
104: push(@Apache::edit::inserttag,$token->[1]);
105: my $result='<div align="right">';
106: $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="5" cellpadding="3">';
107: return $result;
1.10 albertel 108: }
109:
110: sub end_table {
1.63 albertel 111: $Apache::edit::colordepth--;
112: my $result='</table></div>';
113: $result.="<table><tr><td>";
114:
115: my ($tagname,$closingtag);
116: if (defined($Apache::edit::inserttag[-2])) {
117: $tagname=$Apache::edit::inserttag[-2];
118: } else {$tagname='problem';}
119: if (defined($Apache::edit::inserttag[-1])) {
120: $closingtag=$Apache::edit::inserttag[-1];
121: }
122: $result.=&innerinsertlist('edit',$tagname,$closingtag).
123: "</td></tr></table>";
124: pop(@Apache::edit::inserttag);
125: return $result;
1.10 albertel 126: }
127:
1.58 bowersj2 128: sub start_spanning_row { return '<tr><td colspan="4" bgcolor="#DDDDDD">';}
1.41 www 129: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
1.27 matthew 130: sub end_row { return '</td></tr>'; }
131:
1.22 albertel 132: sub movebuttons {
1.63 albertel 133: my ($target,$token) = @_;
134: my $result='<input type="submit" name="moveup.'.
135: $Apache::lonxml::curdepth.'" value="Move Up" />';
136: $result.='<input type="submit" name="movedown.'.
137: $Apache::lonxml::curdepth.'" value="Move Down" />';
138: return $result;
1.22 albertel 139: }
140:
1.8 albertel 141: sub deletelist {
1.63 albertel 142: my ($target,$token) = @_;
143: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14 albertel 144: <option></option>
145: <option>Yes</option>
1.8 albertel 146: </select>";
1.63 albertel 147: return $result;
1.8 albertel 148: }
149:
1.14 albertel 150: sub handle_delete {
1.63 albertel 151: if (!$ENV{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
152: my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
153: my $result=0;
154: if ($space) {
155: my $sub1="$space\:\:delete_$token->[1]";
156: {
157: no strict 'refs';
158: if (defined &$sub1) {
159: $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
160: }
161: }
162: }
163: if (!$result) {
164: my $endtag='/'.$token->[1];
165: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
166: $$parser['-1']->get_token();
167: &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
168: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
169: }
170: return 1;
1.14 albertel 171: }
172:
1.7 albertel 173: sub get_insert_list {
1.63 albertel 174: my ($tagname) = @_;
175: my $result='';
176: my @tagnums= ();
177: #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
178: if ($Apache::lonxml::insertlist{"$tagname.which"}) {
179: push (@tagnums, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
180: }
181: foreach my $namespace (@Apache::lonxml::namespace) {
182: if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
183: push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
184: }
185: }
186: if (@tagnums) {
187: my %options;
188: foreach my $tagnum (@tagnums) {
189: my $descrip=$Apache::lonxml::insertlist{"$tagnum.description"};
190: $options{$descrip} ="<option value=\"$tagnum\">".
191: $descrip."</option>\n";
192: }
193: foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
194: if ($result) { $result='<option selected="on"></option>'.$result; }
195: }
196: return $result;
1.5 albertel 197: }
198:
1.4 albertel 199: sub insertlist {
1.63 albertel 200: my ($target,$token) = @_;
201: return &innerinsertlist($target,$token->[1]);
1.38 www 202: }
203:
204: sub innerinsertlist {
1.63 albertel 205: my ($target,$tagname,$closingtag) = @_;
206: my $result;
207: my $after='';
208: if ($closingtag) {
209: $after='_after_'.$closingtag;
210: }
211: if ($target eq 'edit') {
212: my $optionlist= &get_insert_list($tagname);
213: if ($optionlist) {
214: $result = "Insert:
215: <select name=\"insert$after\_$Apache::lonxml::curdepth\">
216: $optionlist
217: </select>"
218: } else {
219: $result=" ";
220: }
1.6 albertel 221: }
1.63 albertel 222: return $result;
1.6 albertel 223: }
224:
1.7 albertel 225: sub handle_insert {
1.63 albertel 226: if ($ENV{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
227: my $result;
228: my $tagnum = $ENV{"form.insert_$Apache::lonxml::curdepth"};
229: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
230: if ($func eq 'default') {
231: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
232: my $namespace;
233: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
234: $result.="\n<$newtag>\n</$newtag>";
1.15 albertel 235: } else {
1.63 albertel 236: if (defined(&$func)) {
237: {
238: no strict 'refs';
239: $result.=&$func();
240: }
241: } else {
242: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
243: &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined.");
244: }
1.38 www 245: }
1.63 albertel 246: return $result;
1.38 www 247: }
248:
249: sub handle_insertafter {
1.63 albertel 250: my $tagname=shift;
251: if ($ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '')
252: { return ''; }
253: my $result;
254: my $tagnum =$ENV{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
255: my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
256: if ($func eq 'default') {
257: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
258: my $namespace;
259: if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
260: $result.="\n<$newtag>\n</$newtag>";
1.38 www 261: } else {
1.63 albertel 262: if (defined(&$func)) {
263: {
264: no strict 'refs';
265: $result.=&$func();
266: }
267: } else {
268: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
269: &Apache::lonxml::error("Unable to insert (after) tag $newtag, $func was not defined. ($tagname $tagnum)");
270: }
1.5 albertel 271: }
1.63 albertel 272: return $result;
1.69 albertel 273: }
274:
275: sub insert_img {
276: return '
277: <img />';
1.16 albertel 278: }
279:
280: sub insert_responseparam {
1.63 albertel 281: return '
1.16 albertel 282: <responseparam />';
1.5 albertel 283: }
284:
1.24 albertel 285: sub insert_formularesponse {
1.63 albertel 286: return '
1.24 albertel 287: <formularesponse answer="" samples="">
1.86 ! albertel 288: <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
! 289: <textline size="25"/>
1.24 albertel 290: <hintgroup>
1.78 www 291: <startouttext /><endouttext />
1.24 albertel 292: </hintgroup>
293: </formularesponse>';
294: }
295:
1.15 albertel 296: sub insert_numericalresponse {
1.63 albertel 297: return '
1.15 albertel 298: <numericalresponse answer="">
299: <textline />
300: <hintgroup>
1.78 www 301: <startouttext /><endouttext />
1.15 albertel 302: </hintgroup>
303: </numericalresponse>';
304: }
305:
1.18 albertel 306: sub insert_stringresponse {
1.63 albertel 307: return '
1.18 albertel 308: <stringresponse answer="" type="">
309: <textline />
310: <hintgroup>
1.78 www 311: <startouttext /><endouttext />
1.18 albertel 312: </hintgroup>
313: </stringresponse>';
1.36 albertel 314: }
315:
316: sub insert_essayresponse {
1.63 albertel 317: return '
1.36 albertel 318: <essayresponse>
319: <textfield></textfield>
320: </essayresponse>';
1.54 albertel 321: }
322:
323: sub insert_imageresponse {
1.63 albertel 324: return '
1.54 albertel 325: <imageresponse max="1">
326: <foilgroup>
327: </foilgroup>
328: <hintgroup>
1.78 www 329: <startouttext /><endouttext />
1.54 albertel 330: </hintgroup>
331: </imageresponse>';
1.18 albertel 332: }
333:
1.7 albertel 334: sub insert_optionresponse {
1.63 albertel 335: return '
1.7 albertel 336: <optionresponse max="10">
337: <foilgroup options="">
338: </foilgroup>
1.14 albertel 339: <hintgroup>
1.78 www 340: <startouttext /><endouttext />
1.14 albertel 341: </hintgroup>
1.7 albertel 342: </optionresponse>';
1.1 albertel 343: }
344:
1.72 albertel 345: sub insert_organicresponse {
346: return '
347: <organicresponse>
348: <textline />
349: <hintgroup>
1.78 www 350: <startouttext /><endouttext />
1.72 albertel 351: </hintgroup>
352: </organicresponse>';
353: }
354:
355: sub insert_organicstructure {
356: return '
357: <organicstructure />
358: ';
359: }
360:
1.23 albertel 361: sub insert_radiobuttonresponse {
1.63 albertel 362: return '
1.23 albertel 363: <radiobuttonresponse max="10">
364: <foilgroup>
365: </foilgroup>
366: <hintgroup>
1.78 www 367: <startouttext /><endouttext />
1.23 albertel 368: </hintgroup>
369: </radiobuttonresponse>';
1.72 albertel 370: }
371:
372: sub insert_reactionresponse {
373: return '
374: <reactionresponse>
375: <textline />
376: <hintgroup>
1.78 www 377: <startouttext /><endouttext />
1.72 albertel 378: </hintgroup>
379: </reactionresponse>';
1.43 albertel 380: }
381:
382: sub insert_rankresponse {
1.63 albertel 383: return '
1.43 albertel 384: <rankresponse max="10">
385: <foilgroup options="">
386: </foilgroup>
387: <hintgroup>
1.78 www 388: <startouttext /><endouttext />
1.43 albertel 389: </hintgroup>
390: </rankresponse>';
1.23 albertel 391: }
392:
1.44 albertel 393: sub insert_matchresponse {
1.63 albertel 394: return '
1.44 albertel 395: <matchresponse max="10">
396: <foilgroup options="">
397: <itemgroup>
398: </itemgroup>
399: </foilgroup>
400: <hintgroup>
1.78 www 401: <startouttext /><endouttext />
1.44 albertel 402: </hintgroup>
403: </matchresponse>';
404: }
405:
1.21 albertel 406: sub insert_displayduedate { return '<displayduedate />'; }
407: sub insert_displaytitle { return '<displaytitle />'; }
1.22 albertel 408: sub insert_hintpart {
1.63 albertel 409: return '
1.22 albertel 410: <hintpart on="default">
411: <startouttext/>
412: <endouttext />
413: </hintpart>';
1.67 albertel 414: }
415:
416: sub insert_hintgroup {
417: return '
418: <hintgroup>
1.78 www 419: <startouttext /><endouttext />
1.67 albertel 420: </hintgroup>';
1.22 albertel 421: }
422:
423: sub insert_numericalhint {
1.63 albertel 424: return '
1.22 albertel 425: <numericalhint>
426: </numericalhint>';
1.46 albertel 427: }
428:
429: sub insert_stringhint {
1.63 albertel 430: return '
1.46 albertel 431: <stringhint>
432: </stringhint>';
433: }
434:
435: sub insert_formulahint {
1.63 albertel 436: return '
1.46 albertel 437: <formulahint>
438: </formulahint>';
1.37 albertel 439: }
440:
441: sub insert_radiobuttonhint {
1.63 albertel 442: return '
1.37 albertel 443: <radiobuttonhint>
444: </radiobuttonhint>';
1.50 albertel 445: }
446:
447: sub insert_optionhint {
1.63 albertel 448: return '
1.50 albertel 449: <optionhint>
450: </optionhint>';
1.22 albertel 451: }
1.21 albertel 452:
1.23 albertel 453: sub insert_startouttext {
1.78 www 454: return "<startouttext /><endouttext />";
1.23 albertel 455: }
456:
457: sub insert_script {
1.78 www 458: return "\n<script type=\"loncapa/perl\"></script>";
1.23 albertel 459: }
460:
1.25 albertel 461: sub textarea_sizes {
1.63 albertel 462: my ($data)=@_;
463: my $count=0;
464: my $maxlength=-1;
465: foreach (split ("\n", $$data)) {
466: $count+=int(length($_)/79);
467: $count++;
468: if (length($_) > $maxlength) { $maxlength = length($_); }
469: }
470: my $rows = $count;
471: my $cols = $maxlength;
472: return ($rows,$cols);
1.25 albertel 473: }
474:
1.32 albertel 475: sub editline {
1.31 matthew 476: my ($tag,$data,$description,$size)=@_;
1.81 albertel 477: $data=&HTML::Entities::encode($data,'<>&"');
1.31 matthew 478: if ($description) { $description="<br />".$description."<br />"; }
479: my $result = <<"END";
480: $description
481: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
482: value="$data" size="$size" />
483: END
484: return $result;
485: }
486:
1.2 albertel 487: sub editfield {
1.82 www 488: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22 albertel 489:
1.63 albertel 490: my ($rows,$cols)=&textarea_sizes(\$data);
1.84 www 491: if (&Apache::lonhtmlcommon::htmlareabrowser() &&
492: !&Apache::lonhtmlcommon::htmlareablocked()) {
493: $rows+=7; # make room for HTMLarea
494: $minheight+=7; # make room for HTMLarea
495: }
1.63 albertel 496: if ($cols > 80) { $cols = 80; }
497: if ($cols < $minwidth ) { $cols = $minwidth; }
498: if ($rows < $minheight) { $rows = $minheight; }
499: if ($description) { $description="<br />".$description."<br />"; }
1.82 www 500: if ($usehtmlarea) {
501: push @Apache::lonxml::htmlareafields,'homework_edit_'.
502: $Apache::lonxml::curdepth;
503: }
1.63 albertel 504: return $description."\n".' <textarea rows="'.$rows.
505: '" cols="'.$cols.'" name="homework_edit_'.
1.82 www 506: $Apache::lonxml::curdepth.'" id="homework_edit_'.
1.63 albertel 507: $Apache::lonxml::curdepth.'">'.
1.85 www 508: &HTML::Entities::encode($data,'<>&"').'</textarea>'.
509: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
510: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2 albertel 511: }
512:
513: sub modifiedfield {
1.70 albertel 514: my ($endtag,$parser) = @_;
1.63 albertel 515: my $result;
1.3 albertel 516: # foreach my $envkey (sort keys %ENV) {
517: # &Apache::lonxml::debug("$envkey ---- $ENV{$envkey}");
518: # }
519: # &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
520: # &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});
1.63 albertel 521: $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70 albertel 522: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
523: # textareas throw away intial \n
524: if ($bodytext=~/^\n/) { $result="\n".$result; }
1.63 albertel 525: return $result;
1.2 albertel 526: }
527:
1.15 albertel 528: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 529: # side-effects, will modify the $token if new values are found
530: sub get_new_args {
1.61 albertel 531: my ($token,$parstack,$safeeval,@args)=@_;
532: my $rebuild=0;
533: foreach my $arg (@args) {
1.63 albertel 534: #just want the string that it was set to
535: my $value=$token->[2]->{$arg};
536: my $element=&html_element_name($arg);
537: my $newvalue=$ENV{"form.$element"};
538: &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
539: if (defined($newvalue) && $value ne $newvalue) {
540: if (ref($newvalue) eq 'ARRAY') {
541: $token->[2]->{$arg}=join(',',@$newvalue);
542: } else {
543: $token->[2]->{$arg}=$newvalue;
544: }
1.79 albertel 545: $rebuild=1;
546: } elsif (!defined($newvalue) && defined($value)) {
547: delete($token->[2]->{$arg});
1.63 albertel 548: $rebuild=1;
1.61 albertel 549: }
1.12 albertel 550: }
1.63 albertel 551: return $rebuild;
1.12 albertel 552: }
553:
1.15 albertel 554: # looks for /> on start tags
1.12 albertel 555: sub rebuild_tag {
1.63 albertel 556: my ($token) = @_;
557: my $result;
558: if ($token->[0] eq 'S') {
559: $result = '<'.$token->[1];
560: while (my ($key,$val)= each(%{$token->[2]})) {
561: $val=~s:^\s+|\s+$::g;
562: $val=~s:"::g; #"
563: &Apache::lonxml::debug("setting :$key: to :$val:");
564: $result.=' '.$key.'="'.$val.'"';
565: }
566: if ($token->[4] =~ m:/>$:) {
567: $result.=' />';
568: } else {
569: $result.='>';
570: }
571: } elsif ( $token->[0] eq 'E' ) {
572: $result = '</'.$token->[1].'>';
1.12 albertel 573: }
1.63 albertel 574: return $result;
1.12 albertel 575: }
1.13 albertel 576:
1.47 matthew 577: sub html_element_name {
578: my ($name) = @_;
1.48 albertel 579: return $name.'_'.$Apache::lonxml::curdepth;
580: }
581:
582: sub hidden_arg {
583: my ($name,$token) = @_;
584: my $result;
585: my $arg=$token->[2]{$name};
586: $result='<input name="'.&html_element_name($name).
587: '" type="hidden" value="'.$arg.'" />';
1.61 albertel 588: return $result;
589: }
590:
591: sub checked_arg {
592: my ($description,$name,$list,$token) = @_;
593: my $result;
594: my $optionlist="";
595: my $allselected=$token->[2]{$name};
1.71 www 596: $result=&mt($description);
1.61 albertel 597: foreach my $option (@$list) {
598: my ($value,$text);
599: if ( ref($option) eq 'ARRAY') {
600: $value='value="'.$$option[0].'"';
601: $text=$$option[1];
602: $option=$$option[0];
603: } else {
604: $text=$option;
605: $value='value="'.$option.'"';
606: }
607: $result.="<nobr><input type='checkbox' $value name='".
608: &html_element_name($name)."'";
609: foreach my $selected (split(/,/,$allselected)) {
610: if ( $selected eq $option ) {
611: $result.=" checked='on' ";
612: last;
613: }
614: }
615: $result.=" />$text</nobr>\n";
616: }
1.48 albertel 617: return $result;
1.47 matthew 618: }
619:
1.13 albertel 620: sub text_arg {
1.63 albertel 621: my ($description,$name,$token,$size) = @_;
622: my $result;
623: if (!defined $size) { $size=20; }
624: my $arg=$token->[2]{$name};
1.71 www 625: $result=&mt($description).' <input name="'.&html_element_name($name).
1.63 albertel 626: '" type="text" value="'.$arg.'" size="'.$size.'" />';
627: return '<nobr>'.$result.'</nobr>';
1.13 albertel 628: }
629:
630: sub select_arg {
1.39 albertel 631: my ($description,$name,$list,$token) = @_;
632: my $result;
633: my $optionlist="";
634: my $selected=$token->[2]{$name};
635: foreach my $option (@$list) {
1.64 albertel 636: my ($text,$value);
1.39 albertel 637: if ( ref($option) eq 'ARRAY') {
638: $value='value="'.$$option[0].'"';
1.64 albertel 639: $text=$$option[1];
640: $option=$$option[0];
1.39 albertel 641: } else {
1.64 albertel 642: $text=$option;
1.39 albertel 643: $value='value="'.$option.'"';
644: }
645: if ( $selected eq $option ) {
1.64 albertel 646: $optionlist.="<option $value selected=\"on\">$text</option>\n";
1.39 albertel 647: } else {
1.64 albertel 648: $optionlist.="<option $value >$text</option>\n";
1.39 albertel 649: }
1.13 albertel 650: }
1.57 albertel 651: $result.='<nobr>'.$description.' <select name="'.
652: &html_element_name($name).'">
1.13 albertel 653: '.$optionlist.'
1.57 albertel 654: </select></nobr>';
1.39 albertel 655: return $result;
1.13 albertel 656: }
657:
1.19 albertel 658: sub select_or_text_arg {
1.39 albertel 659: my ($description,$name,$list,$token,$size) = @_;
660: my $result;
661: my $optionlist="";
662: my $found=0;
663: my $selected=$token->[2]{$name};
664: foreach my $option (@$list) {
1.64 albertel 665: my ($text,$value);
1.39 albertel 666: if ( ref($option) eq 'ARRAY') {
667: $value='value="'.$$option[0].'"';
1.64 albertel 668: $text=$$option[1];
669: $option=$$option[0];
1.39 albertel 670: } else {
1.64 albertel 671: $text=$option;
1.39 albertel 672: $value='value="'.$option.'"';
673: }
674: if ( $selected eq $option ) {
1.64 albertel 675: $optionlist.="<option $value selected=\"on\">$text</option>\n";
1.39 albertel 676: $found=1;
677: } else {
1.64 albertel 678: $optionlist.="<option $value>$text</option>\n";
1.39 albertel 679: }
680: }
1.60 www 681: $optionlist.="<option value=\"TYPEDINVALUE\"".
682: ((!$found)?' selected="on"':'').
1.73 www 683: ">".&mt('Type-in value')."</option>\n";
1.60 www 684: #
685: my $element=&html_element_name($name);
686: my $selectelement='select_list_'.$element;
687: my $typeinelement='type_in_'.$element;
688: my $typeinvalue=($found?'':$selected);
689: #
690: my $hiddenvalue='this.form.'.$element.'.value';
691: my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
692: my $selectedvalue='this.form.'.$selectelement.
693: '.options['.$selectedindex.'].value';
694: my $typedinvalue='this.form.'.$typeinelement.'.value';
695: my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
1.71 www 696: $description=&mt($description);
1.60 www 697: #
698: return (<<ENDSELECTORTYPE);
699: <nobr>
700: $description
701: <select name="$selectelement"
1.74 albertel 702: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60 www 703: $optionlist
704: </select>
705: <input type="text" size="$size" name="$typeinelement"
706: value="$typeinvalue"
707: onChange="$hiddenvalue=$typedinvalue;"
708: onFocus="$selectedindex=$selecttypeinindex-1;" />
709: <input type="hidden" name="$element" value="$selected" />
710: </nobr>
711: ENDSELECTORTYPE
1.19 albertel 712: }
1.29 matthew 713:
1.49 www 714: #----------------------------------------------------- image coordinates
715: # single image coordinates, x, y
716: sub entercoords {
1.80 albertel 717: my ($idx,$idy,$mode,$width,$height) = @_;
1.49 www 718: unless ($Apache::edit::bgimgsrc) { return ''; }
719: if ($idx) { $idx.='_'; }
720: if ($idy) { $idy.='_'; }
1.80 albertel 721: my $bgfile=&Apache::lonnet::escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49 www 722: my $form = 'lonhomework';
723: my $element;
724: if (! defined($mode) || $mode eq 'attribute') {
725: $element = &Apache::lonnet::escape("$Apache::lonxml::curdepth");
726: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
727: $element = &Apache::lonnet::escape('homework_edit_'.
728: $Apache::lonxml::curdepth);
729: }
1.80 albertel 730: my $id=$Apache::lonxml::curdepth;
731: my %data=("imagechoice.$id.type" =>'point',
732: "imagechoice.$id.formname" =>$form,
733: "imagechoice.$id.formx" =>"$idx$element",
734: "imagechoice.$id.formy" =>"$idy$element",
735: "imagechoice.$id.file" =>$bgfile,
736: "imagechoice.$id.formcoord" =>$element);
1.49 www 737: if ($height) {
1.80 albertel 738: $data{"imagechoice.$id.formheight"}=$height.'_'.
739: $Apache::edit::bgimgsrccurdepth;
1.49 www 740: }
741: if ($width) {
1.80 albertel 742: $data{"imagechoice.$id.formwidth"}=$width.'_'.
743: $Apache::edit::bgimgsrccurdepth;
1.49 www 744: }
1.80 albertel 745: &Apache::lonnet::appenv(%data);
746: my $text="Click Coordinates";
747: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 748: return $result;
749: }
750:
1.77 albertel 751: # coordinates (x1,y1)-(x2,y2)...
752: # mode can be either box, or polygon
753: sub entercoord {
754: my ($idx,$mode,$width,$height,$type) = @_;
1.49 www 755: unless ($Apache::edit::bgimgsrc) { return ''; }
1.76 albertel 756: my $bgfile=&Apache::lonnet::escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75 albertel 757: my $form = 'lonhomework';
758: my $element;
759: if (! defined($mode) || $mode eq 'attribute') {
1.77 albertel 760: $element = &Apache::lonnet::escape("$idx\_$Apache::lonxml::curdepth");
1.75 albertel 761: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
762: $element = &Apache::lonnet::escape('homework_edit_'.
763: $Apache::lonxml::curdepth);
764: }
1.76 albertel 765: my $id=$Apache::lonxml::curdepth;
1.77 albertel 766: my %data=("imagechoice.$id.type" =>$type,
1.76 albertel 767: "imagechoice.$id.formname" =>$form,
768: "imagechoice.$id.file" =>$bgfile,
769: "imagechoice.$id.formcoord" =>$element);
1.75 albertel 770: if ($height) {
1.76 albertel 771: $data{"imagechoice.$id.formheight"}=$height.'_'.
772: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 773: }
774: if ($width) {
1.76 albertel 775: $data{"imagechoice.$id.formwidth"}=$width.'_'.
776: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 777: }
778: &Apache::lonnet::appenv(%data);
1.77 albertel 779: my $text="Enter Coordinates";
780: if ($type eq 'polygon') { $text='Create Polygon Data'; }
781: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 782: return $result;
783: }
1.76 albertel 784:
785: sub deletecoorddata {
786: &Apache::lonnet::delenv("imagechoice\\.");
787: }
788:
1.29 matthew 789: #----------------------------------------------------- browse
790: sub browse {
791: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 792: my ($id, $mode, $titleid) = @_;
1.29 matthew 793: my $form = 'lonhomework';
1.42 matthew 794: my $element;
795: if (! defined($mode) || $mode eq 'attribute') {
1.49 www 796: $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
1.42 matthew 797: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
798: $element = &Apache::lonnet::escape('homework_edit_'.
1.68 albertel 799: $Apache::lonxml::curdepth);
800: }
801: my $titleelement;
802: if ($titleid) {
803: $titleelement=",'','','".&Apache::lonnet::escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.42 matthew 804: }
1.29 matthew 805: my $result = <<"ENDBUTTON";
1.68 albertel 806: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29 matthew 807: ENDBUTTON
808: return $result;
809: }
810:
1.30 matthew 811: #----------------------------------------------------- browse
812: sub search {
813: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 814: my ($id, $mode, $titleid) = @_;
1.30 matthew 815: my $form = 'lonhomework';
1.49 www 816: my $element;
817: if (! defined($mode) || $mode eq 'attribute') {
818: $element = &Apache::lonnet::escape("$id\_$Apache::lonxml::curdepth");
819: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
820: $element = &Apache::lonnet::escape('homework_edit_'.
821: $Apache::lonxml::curdepth);
822: }
1.68 albertel 823: my $titleelement;
824: if ($titleid) {
825: $titleelement=",'".&Apache::lonnet::escape("$titleid\_$Apache::lonxml::curdepth")."'";
826: }
1.30 matthew 827: my $result = <<"ENDBUTTON";
1.68 albertel 828: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30 matthew 829: ENDBUTTON
830: return $result;
831: }
832:
833:
1.1 albertel 834: 1;
835: __END__
1.26 harris41 836:
837: =head1 NAME
838:
839: Apache::edit - edit mode helpers
840:
841: =head1 SYNOPSIS
842:
843: Invoked by many homework and xml related modules.
844:
845: &Apache::edit::SUBROUTINENAME(ARGUMENTS);
846:
847: =head1 INTRODUCTION
848:
849: This module outputs HTML syntax helpful for the rendering of edit
850: mode interfaces.
851:
852: This is part of the LearningOnline Network with CAPA project
853: described at http://www.lon-capa.org.
854:
855: =head1 HANDLER SUBROUTINE
856:
857: There is no handler subroutine.
858:
859: =head1 OTHER SUBROUTINES
860:
861: =over 4
862:
863: =item *
864:
865: initialize_edit() : initialize edit (set colordepth to zero)
866:
867: =item *
868:
869: tag_start($target,$token,$description) : provide deletion and insertion lists
870: for the manipulation of a start tag; return a scalar string
871:
872: =item *
873:
874: tag_end($target,$token,$description) : ending syntax corresponding to
875: &tag_start. return a scalar string.
876:
877: =item *
878:
879: start_table($token) : start table; update colordepth; return scalar string.
880:
881: =item *
882:
883: end_table() : reduce color depth; end table; return scalar string
1.27 matthew 884:
885: =item *
886:
887: start_spanning_row() : start a new table row spanning the 'edit' environment.
888:
889: =item *
890:
891: start_row() : start a new table row and element.
892:
893: =item *
894:
895: end_row() : end current table element and row.
1.26 harris41 896:
897: =item *
898:
899: movebuttons($target,$token) : move-up and move-down buttons; return scalar
900: string
901:
902: =item *
903:
904: deletelist($target,$token) : provide a yes option in an HTML select element;
905: return scalar string
906:
907: =item *
908:
909: handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
910: $style) : respond to a user delete request by passing relevant stack
911: and array information to various rendering functions; return a scalar string
912:
913: =item *
914:
915: get_insert_list($token) : provide an insertion list based on possibilities
916: from lonxml; return a scalar string
917:
918: =item *
919:
920: insertlist($target,$token) : api that uses get_insert_list;
921: return a scalar string
922:
923: =item *
924:
925: handleinsert($token) : provide an insertion list based on possibilities
926: from lonxml; return a scalar string
927:
928: =item *
929:
930: get_insert_list($token) : provide an insertion list based on possibilities
931: from lonxml; return a scalar string
1.29 matthew 932:
933: =item *
934: browse($elementname) : provide a link which will open up the filesystem
935: browser (lonindexer) and, once a file is selected, place the result in
1.30 matthew 936: the form element $elementname.
937:
938: =item *
939: search($elementname) : provide a link which will open up the filesystem
940: searcher (lonsearchcat) and, once a file is selected, place the result in
1.29 matthew 941: the form element $elementname.
1.31 matthew 942:
1.34 harris41 943: =item *
1.32 albertel 944: editline(tag,data,description,size): Provide a <input type="text" ../> for
1.31 matthew 945: single-line text entry. This is to be used for text enclosed by tags, not
946: arguements/parameters associated with a tag.
1.26 harris41 947:
948: =back
949:
950: incomplete...
951:
952: =cut
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