Annotation of loncom/homework/edit.pm, revision 1.102
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # edit mode helpers
1.25 albertel 3: #
1.102 ! www 4: # $Id: edit.pm,v 1.101 2006/04/18 22:36:23 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: #
1.82 www 28:
1.1 albertel 29: package Apache::edit;
30:
31: use strict;
1.92 albertel 32: use Apache::lonnet;
1.32 albertel 33: use HTML::Entities();
1.71 www 34: use Apache::lonlocal;
1.102 ! www 35: use lib '/home/httpd/lib/perl/';
! 36: use LONCAPA;
! 37:
1.1 albertel 38:
1.10 albertel 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;
1.38 www 44: @Apache::edit::inserttag=();
1.49 www 45: # image-type responses: active background image and curdepth at definition
46: $Apache::edit::bgimgsrc='';
47: $Apache::edit::bgimgsrccurdepth='';
1.10 albertel 48:
49: sub initialize_edit {
1.63 albertel 50: $Apache::edit::colordepth=0;
51: @Apache::edit::inserttag=();
1.10 albertel 52: }
53:
1.1 albertel 54: sub tag_start {
1.63 albertel 55: my ($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,$token);
1.27 matthew 69: #<td>".
1.22 albertel 70: # &movebuttons($target,$token).
71: # "</tr><tr><td colspan=\"3\">\n";
1.66 matthew 72: my @help = Apache::lonxml::helpinfo($token);
1.63 albertel 73: if ($help[0]) {
1.88 albertel 74: $result .= '</td><td align="right" valign="top">' .
75: Apache::loncommon::help_open_topic(@help);
76: } else { $result .= "</td><td> "; }
1.63 albertel 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"};
1.95 albertel 98: &Apache::lonxml::debug(" $testtag ");
1.63 albertel 99: if (defined($tagnum)) { last; }
100: }
101: if (!defined ($tagnum)) {$tagnum=$Apache::lonxml::insertlist{"$tag.num"};}
102: my $color = $Apache::lonxml::insertlist{"$tagnum.color"};
1.95 albertel 103: &Apache::lonxml::debug(" $tagnum -- $color");
1.63 albertel 104: if (!defined($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;
1.10 albertel 112: }
113:
114: sub end_table {
1.63 albertel 115: $Apache::edit::colordepth--;
116: my $result='</table></div>';
1.94 albertel 117: $result.='<div align="left"><table><tr><td>';
1.63 albertel 118:
119: my ($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).
1.94 albertel 127: "</td></tr></table></div>";
1.63 albertel 128: pop(@Apache::edit::inserttag);
129: return $result;
1.10 albertel 130: }
131:
1.58 bowersj2 132: sub start_spanning_row { return '<tr><td colspan="4" bgcolor="#DDDDDD">';}
1.41 www 133: sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
1.27 matthew 134: sub end_row { return '</td></tr>'; }
135:
1.22 albertel 136: sub movebuttons {
1.63 albertel 137: my ($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 $result;
1.22 albertel 143: }
144:
1.8 albertel 145: sub deletelist {
1.63 albertel 146: my ($target,$token) = @_;
147: my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
1.14 albertel 148: <option></option>
149: <option>Yes</option>
1.8 albertel 150: </select>";
1.63 albertel 151: return $result;
1.8 albertel 152: }
153:
1.14 albertel 154: sub handle_delete {
1.92 albertel 155: if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
1.63 albertel 156: my ($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];
1.97 albertel 169: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style);
1.63 albertel 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;
1.14 albertel 175: }
176:
1.7 albertel 177: sub get_insert_list {
1.63 albertel 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};}
1.88 albertel 198: if ($result) { $result='<option selected="selected"></option>'.$result; }
1.63 albertel 199: }
200: return $result;
1.5 albertel 201: }
202:
1.4 albertel 203: sub insertlist {
1.63 albertel 204: my ($target,$token) = @_;
205: return &innerinsertlist($target,$token->[1]);
1.38 www 206: }
207:
208: sub innerinsertlist {
1.63 albertel 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: }
1.6 albertel 225: }
1.63 albertel 226: return $result;
1.6 albertel 227: }
228:
1.7 albertel 229: sub handle_insert {
1.92 albertel 230: if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
1.63 albertel 231: my $result;
1.92 albertel 232: my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"};
1.63 albertel 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>";
1.15 albertel 239: } else {
1.63 albertel 240: if (defined(&$func)) {
241: {
242: no strict 'refs';
243: $result.=&$func();
244: }
245: } else {
246: my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
1.91 albertel 247: &Apache::lonxml::error("Unable to insert tag ".$Apache::lonxml::curdepth." ($tagnum) $newtag, func was not defined.");
1.63 albertel 248: }
1.38 www 249: }
1.63 albertel 250: return $result;
1.38 www 251: }
252:
253: sub handle_insertafter {
1.63 albertel 254: my $tagname=shift;
1.92 albertel 255: if ($env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '')
1.63 albertel 256: { return ''; }
257: my $result;
1.92 albertel 258: my $tagnum =$env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
1.63 albertel 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>";
1.38 www 265: } else {
1.63 albertel 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: }
1.5 albertel 275: }
1.63 albertel 276: return $result;
1.69 albertel 277: }
278:
279: sub insert_img {
280: return '
281: <img />';
1.16 albertel 282: }
283:
284: sub insert_responseparam {
1.63 albertel 285: return '
1.16 albertel 286: <responseparam />';
1.5 albertel 287: }
288:
1.87 albertel 289: sub insert_parameter {
290: return '
291: <parameter />';
292: }
293:
1.24 albertel 294: sub insert_formularesponse {
1.63 albertel 295: return '
1.24 albertel 296: <formularesponse answer="" samples="">
1.86 albertel 297: <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
298: <textline size="25"/>
1.24 albertel 299: <hintgroup>
1.78 www 300: <startouttext /><endouttext />
1.24 albertel 301: </hintgroup>
302: </formularesponse>';
303: }
304:
1.15 albertel 305: sub insert_numericalresponse {
1.63 albertel 306: return '
1.15 albertel 307: <numericalresponse answer="">
1.90 www 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" />
1.15 albertel 310: <textline />
311: <hintgroup>
1.78 www 312: <startouttext /><endouttext />
1.15 albertel 313: </hintgroup>
314: </numericalresponse>';
315: }
316:
1.96 albertel 317: sub insert_customresponse {
1.95 albertel 318: return '
1.96 albertel 319: <customresponse>
1.95 albertel 320: <answer type="loncapa/perl">
321: </answer>
322: <textline />
323: <hintgroup>
324: <startouttext /><endouttext />
325: </hintgroup>
1.96 albertel 326: </customresponse>';
1.95 albertel 327: }
328:
1.96 albertel 329: sub insert_customresponse_answer {
1.95 albertel 330: return '
331: <answer type="loncapa/perl">
332: </answer>
333: ';
334: }
335:
1.18 albertel 336: sub insert_stringresponse {
1.63 albertel 337: return '
1.18 albertel 338: <stringresponse answer="" type="">
339: <textline />
340: <hintgroup>
1.78 www 341: <startouttext /><endouttext />
1.18 albertel 342: </hintgroup>
343: </stringresponse>';
1.36 albertel 344: }
345:
346: sub insert_essayresponse {
1.63 albertel 347: return '
1.36 albertel 348: <essayresponse>
349: <textfield></textfield>
350: </essayresponse>';
1.54 albertel 351: }
352:
353: sub insert_imageresponse {
1.63 albertel 354: return '
1.54 albertel 355: <imageresponse max="1">
356: <foilgroup>
1.89 albertel 357: <foil>
358: </foil>
1.54 albertel 359: </foilgroup>
360: <hintgroup>
1.78 www 361: <startouttext /><endouttext />
1.54 albertel 362: </hintgroup>
363: </imageresponse>';
1.18 albertel 364: }
365:
1.7 albertel 366: sub insert_optionresponse {
1.63 albertel 367: return '
1.7 albertel 368: <optionresponse max="10">
369: <foilgroup options="">
1.89 albertel 370: <foil>
371: <startouttext /><endouttext />
372: </foil>
1.7 albertel 373: </foilgroup>
1.14 albertel 374: <hintgroup>
1.78 www 375: <startouttext /><endouttext />
1.14 albertel 376: </hintgroup>
1.7 albertel 377: </optionresponse>';
1.1 albertel 378: }
379:
1.72 albertel 380: sub insert_organicresponse {
381: return '
382: <organicresponse>
383: <textline />
384: <hintgroup>
1.78 www 385: <startouttext /><endouttext />
1.72 albertel 386: </hintgroup>
387: </organicresponse>';
388: }
389:
390: sub insert_organicstructure {
391: return '
392: <organicstructure />
393: ';
394: }
395:
1.23 albertel 396: sub insert_radiobuttonresponse {
1.63 albertel 397: return '
1.23 albertel 398: <radiobuttonresponse max="10">
399: <foilgroup>
1.89 albertel 400: <foil>
401: <startouttext /><endouttext />
402: </foil>
1.23 albertel 403: </foilgroup>
404: <hintgroup>
1.78 www 405: <startouttext /><endouttext />
1.23 albertel 406: </hintgroup>
407: </radiobuttonresponse>';
1.72 albertel 408: }
409:
410: sub insert_reactionresponse {
411: return '
412: <reactionresponse>
413: <textline />
414: <hintgroup>
1.78 www 415: <startouttext /><endouttext />
1.72 albertel 416: </hintgroup>
417: </reactionresponse>';
1.43 albertel 418: }
419:
420: sub insert_rankresponse {
1.63 albertel 421: return '
1.43 albertel 422: <rankresponse max="10">
423: <foilgroup options="">
1.89 albertel 424: <foil>
425: <startouttext /><endouttext />
426: </foil>
1.43 albertel 427: </foilgroup>
428: <hintgroup>
1.78 www 429: <startouttext /><endouttext />
1.43 albertel 430: </hintgroup>
431: </rankresponse>';
1.23 albertel 432: }
433:
1.44 albertel 434: sub insert_matchresponse {
1.63 albertel 435: return '
1.44 albertel 436: <matchresponse max="10">
437: <foilgroup options="">
438: <itemgroup>
439: </itemgroup>
1.89 albertel 440: <foil>
441: <startouttext /><endouttext />
442: </foil>
1.44 albertel 443: </foilgroup>
444: <hintgroup>
1.78 www 445: <startouttext /><endouttext />
1.44 albertel 446: </hintgroup>
447: </matchresponse>';
448: }
449:
1.21 albertel 450: sub insert_displayduedate { return '<displayduedate />'; }
451: sub insert_displaytitle { return '<displaytitle />'; }
1.22 albertel 452: sub insert_hintpart {
1.63 albertel 453: return '
1.22 albertel 454: <hintpart on="default">
1.90 www 455: <startouttext/><endouttext />
1.22 albertel 456: </hintpart>';
1.67 albertel 457: }
458:
459: sub insert_hintgroup {
460: return '
461: <hintgroup>
1.78 www 462: <startouttext /><endouttext />
1.67 albertel 463: </hintgroup>';
1.22 albertel 464: }
465:
466: sub insert_numericalhint {
1.63 albertel 467: return '
1.22 albertel 468: <numericalhint>
469: </numericalhint>';
1.46 albertel 470: }
471:
472: sub insert_stringhint {
1.63 albertel 473: return '
1.46 albertel 474: <stringhint>
475: </stringhint>';
476: }
477:
478: sub insert_formulahint {
1.63 albertel 479: return '
1.46 albertel 480: <formulahint>
481: </formulahint>';
1.37 albertel 482: }
483:
484: sub insert_radiobuttonhint {
1.63 albertel 485: return '
1.37 albertel 486: <radiobuttonhint>
487: </radiobuttonhint>';
1.50 albertel 488: }
489:
490: sub insert_optionhint {
1.63 albertel 491: return '
1.50 albertel 492: <optionhint>
493: </optionhint>';
1.22 albertel 494: }
1.21 albertel 495:
1.23 albertel 496: sub insert_startouttext {
1.78 www 497: return "<startouttext /><endouttext />";
1.23 albertel 498: }
499:
500: sub insert_script {
1.78 www 501: return "\n<script type=\"loncapa/perl\"></script>";
1.23 albertel 502: }
503:
1.98 albertel 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;
1.99 albertel 510: var still_ask = false;
1.98 albertel 511: function compareForm(event_) {
512: if (!event_ && window.event) {
513: event_ = window.event;
514: }
1.99 albertel 515: if ((!is_submit || (is_submit && still_ask)) && !clean) {
516: still_ask = false;
517: is_submit = false;
1.98 albertel 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:
1.99 albertel 538: sub submit_ask_anyway {
539: return ' onclick="still_ask=true;" ';
540: }
541:
1.25 albertel 542: sub textarea_sizes {
1.63 albertel 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,$cols);
1.25 albertel 554: }
555:
1.32 albertel 556: sub editline {
1.31 matthew 557: my ($tag,$data,$description,$size)=@_;
1.81 albertel 558: $data=&HTML::Entities::encode($data,'<>&"');
1.31 matthew 559: if ($description) { $description="<br />".$description."<br />"; }
1.98 albertel 560: my $change_code = &element_change_detection();
1.31 matthew 561: my $result = <<"END";
562: $description
563: <input type="text" name="homework_edit_$Apache::lonxml::curdepth"
1.98 albertel 564: value="$data" size="$size" $change_code />
1.31 matthew 565: END
566: return $result;
567: }
568:
1.2 albertel 569: sub editfield {
1.82 www 570: my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
1.22 albertel 571:
1.63 albertel 572: my ($rows,$cols)=&textarea_sizes(\$data);
1.84 www 573: if (&Apache::lonhtmlcommon::htmlareabrowser() &&
574: !&Apache::lonhtmlcommon::htmlareablocked()) {
575: $rows+=7; # make room for HTMLarea
576: $minheight+=7; # make room for HTMLarea
577: }
1.63 albertel 578: if ($cols > 80) { $cols = 80; }
579: if ($cols < $minwidth ) { $cols = $minwidth; }
580: if ($rows < $minheight) { $rows = $minheight; }
581: if ($description) { $description="<br />".$description."<br />"; }
1.82 www 582: if ($usehtmlarea) {
1.101 albertel 583: &Apache::lonhtmlcommon::add_htmlareafields('homework_edit_'.
584: $Apache::lonxml::curdepth);
1.82 www 585: }
1.91 albertel 586: return $description."\n".' <textarea style="width:100%" rows="'.$rows.
1.63 albertel 587: '" cols="'.$cols.'" name="homework_edit_'.
1.82 www 588: $Apache::lonxml::curdepth.'" id="homework_edit_'.
1.98 albertel 589: $Apache::lonxml::curdepth.'" '.&element_change_detection().'>'.
1.85 www 590: &HTML::Entities::encode($data,'<>&"').'</textarea>'.
591: ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
592: 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
1.2 albertel 593: }
594:
595: sub modifiedfield {
1.70 albertel 596: my ($endtag,$parser) = @_;
1.63 albertel 597: my $result;
1.92 albertel 598: # foreach my $envkey (sort keys %env) {
599: # &Apache::lonxml::debug("$envkey ---- $env{$envkey}");
1.3 albertel 600: # }
601: # &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
1.92 albertel 602: # &Apache::lonxml::debug($env{"form.homework_edit_$Apache::lonxml::curdepth"});
603: $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
1.70 albertel 604: my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
605: # textareas throw away intial \n
606: if ($bodytext=~/^\n/) { $result="\n".$result; }
1.63 albertel 607: return $result;
1.2 albertel 608: }
609:
1.15 albertel 610: # Returns a 1 if the token has been modified and you should rebuild the tag
1.12 albertel 611: # side-effects, will modify the $token if new values are found
612: sub get_new_args {
1.61 albertel 613: my ($token,$parstack,$safeeval,@args)=@_;
614: my $rebuild=0;
615: foreach my $arg (@args) {
1.63 albertel 616: #just want the string that it was set to
617: my $value=$token->[2]->{$arg};
618: my $element=&html_element_name($arg);
1.92 albertel 619: my $newvalue=$env{"form.$element"};
1.63 albertel 620: &Apache::lonxml::debug("for:$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: }
1.79 albertel 627: $rebuild=1;
628: } elsif (!defined($newvalue) && defined($value)) {
629: delete($token->[2]->{$arg});
1.63 albertel 630: $rebuild=1;
1.61 albertel 631: }
1.12 albertel 632: }
1.63 albertel 633: return $rebuild;
1.12 albertel 634: }
635:
1.15 albertel 636: # looks for /> on start tags
1.12 albertel 637: sub rebuild_tag {
1.63 albertel 638: my ($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].'>';
1.12 albertel 655: }
1.63 albertel 656: return $result;
1.12 albertel 657: }
1.13 albertel 658:
1.47 matthew 659: sub html_element_name {
660: my ($name) = @_;
1.48 albertel 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.'" />';
1.61 albertel 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};
1.71 www 678: $result=&mt($description);
1.61 albertel 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=$$option[0];
685: } else {
686: $text=$option;
687: $value='value="'.$option.'"';
688: }
1.100 albertel 689: $result.="<nobr><label><input type='checkbox' $value name='".
1.61 albertel 690: &html_element_name($name)."'";
691: foreach my $selected (split(/,/,$allselected)) {
692: if ( $selected eq $option ) {
1.88 albertel 693: $result.=" checked='checked' ";
1.61 albertel 694: last;
695: }
696: }
1.100 albertel 697: $result.=&element_change_detection()." />$text</label></nobr>\n";
1.61 albertel 698: }
1.48 albertel 699: return $result;
1.47 matthew 700: }
701:
1.13 albertel 702: sub text_arg {
1.63 albertel 703: my ($description,$name,$token,$size) = @_;
704: my $result;
705: if (!defined $size) { $size=20; }
706: my $arg=$token->[2]{$name};
1.71 www 707: $result=&mt($description).' <input name="'.&html_element_name($name).
1.98 albertel 708: '" type="text" value="'.$arg.'" size="'.$size.'" '.
709: &element_change_detection().'/>';
1.63 albertel 710: return '<nobr>'.$result.'</nobr>';
1.13 albertel 711: }
712:
713: sub select_arg {
1.39 albertel 714: my ($description,$name,$list,$token) = @_;
715: my $result;
716: my $optionlist="";
717: my $selected=$token->[2]{$name};
718: foreach my $option (@$list) {
1.64 albertel 719: my ($text,$value);
1.39 albertel 720: if ( ref($option) eq 'ARRAY') {
1.93 albertel 721: $value='value="'.&HTML::Entities::encode($$option[0]).'"';
1.64 albertel 722: $text=$$option[1];
723: $option=$$option[0];
1.39 albertel 724: } else {
1.64 albertel 725: $text=$option;
1.93 albertel 726: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
1.39 albertel 727: }
728: if ( $selected eq $option ) {
1.88 albertel 729: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
1.39 albertel 730: } else {
1.64 albertel 731: $optionlist.="<option $value >$text</option>\n";
1.39 albertel 732: }
1.13 albertel 733: }
1.57 albertel 734: $result.='<nobr>'.$description.' <select name="'.
1.98 albertel 735: &html_element_name($name).'" '.&element_change_detection().' >
1.13 albertel 736: '.$optionlist.'
1.57 albertel 737: </select></nobr>';
1.39 albertel 738: return $result;
1.13 albertel 739: }
740:
1.19 albertel 741: sub select_or_text_arg {
1.39 albertel 742: my ($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) {
1.64 albertel 748: my ($text,$value);
1.39 albertel 749: if ( ref($option) eq 'ARRAY') {
1.93 albertel 750: $value='value="'.&HTML::Entities::encode($$option[0]).'"';
1.64 albertel 751: $text=$$option[1];
752: $option=$$option[0];
1.39 albertel 753: } else {
1.64 albertel 754: $text=$option;
1.93 albertel 755: $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
1.39 albertel 756: }
757: if ( $selected eq $option ) {
1.88 albertel 758: $optionlist.="<option $value selected=\"selected\">$text</option>\n";
1.39 albertel 759: $found=1;
760: } else {
1.64 albertel 761: $optionlist.="<option $value>$text</option>\n";
1.39 albertel 762: }
763: }
1.60 www 764: $optionlist.="<option value=\"TYPEDINVALUE\"".
1.88 albertel 765: ((!$found)?' selected="selected"':'').
1.73 www 766: ">".&mt('Type-in value')."</option>\n";
1.60 www 767: #
1.98 albertel 768: my $change_code=&element_change_detection();
1.60 www 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';
1.71 www 780: $description=&mt($description);
1.60 www 781: #
782: return (<<ENDSELECTORTYPE);
783: <nobr>
784: $description
785: <select name="$selectelement"
1.74 albertel 786: onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
1.60 www 787: $optionlist
788: </select>
789: <input type="text" size="$size" name="$typeinelement"
790: value="$typeinvalue"
791: onChange="$hiddenvalue=$typedinvalue;"
792: onFocus="$selectedindex=$selecttypeinindex-1;" />
1.98 albertel 793: <input type="hidden" name="$element" value="$selected" $change_code />
1.60 www 794: </nobr>
795: ENDSELECTORTYPE
1.19 albertel 796: }
1.29 matthew 797:
1.49 www 798: #----------------------------------------------------- image coordinates
799: # single image coordinates, x, y
800: sub entercoords {
1.80 albertel 801: my ($idx,$idy,$mode,$width,$height) = @_;
1.49 www 802: unless ($Apache::edit::bgimgsrc) { return ''; }
803: if ($idx) { $idx.='_'; }
804: if ($idy) { $idy.='_'; }
1.102 ! www 805: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.49 www 806: my $form = 'lonhomework';
807: my $element;
808: if (! defined($mode) || $mode eq 'attribute') {
1.102 ! www 809: $element = &escape("$Apache::lonxml::curdepth");
1.49 www 810: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 ! www 811: $element = &escape('homework_edit_'.
1.49 www 812: $Apache::lonxml::curdepth);
813: }
1.80 albertel 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" =>$element);
1.49 www 821: if ($height) {
1.80 albertel 822: $data{"imagechoice.$id.formheight"}=$height.'_'.
823: $Apache::edit::bgimgsrccurdepth;
1.49 www 824: }
825: if ($width) {
1.80 albertel 826: $data{"imagechoice.$id.formwidth"}=$width.'_'.
827: $Apache::edit::bgimgsrccurdepth;
1.49 www 828: }
1.80 albertel 829: &Apache::lonnet::appenv(%data);
830: my $text="Click Coordinates";
831: my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
1.49 www 832: return $result;
833: }
834:
1.77 albertel 835: # coordinates (x1,y1)-(x2,y2)...
836: # mode can be either box, or polygon
837: sub entercoord {
838: my ($idx,$mode,$width,$height,$type) = @_;
1.49 www 839: unless ($Apache::edit::bgimgsrc) { return ''; }
1.102 ! www 840: my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
1.75 albertel 841: my $form = 'lonhomework';
842: my $element;
843: if (! defined($mode) || $mode eq 'attribute') {
1.102 ! www 844: $element = &escape("$idx\_$Apache::lonxml::curdepth");
1.75 albertel 845: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 ! www 846: $element = &escape('homework_edit_'.
1.75 albertel 847: $Apache::lonxml::curdepth);
848: }
1.76 albertel 849: my $id=$Apache::lonxml::curdepth;
1.77 albertel 850: my %data=("imagechoice.$id.type" =>$type,
1.76 albertel 851: "imagechoice.$id.formname" =>$form,
852: "imagechoice.$id.file" =>$bgfile,
853: "imagechoice.$id.formcoord" =>$element);
1.75 albertel 854: if ($height) {
1.76 albertel 855: $data{"imagechoice.$id.formheight"}=$height.'_'.
856: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 857: }
858: if ($width) {
1.76 albertel 859: $data{"imagechoice.$id.formwidth"}=$width.'_'.
860: $Apache::edit::bgimgsrccurdepth;
1.75 albertel 861: }
862: &Apache::lonnet::appenv(%data);
1.77 albertel 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>';
1.49 www 866: return $result;
867: }
1.76 albertel 868:
869: sub deletecoorddata {
870: &Apache::lonnet::delenv("imagechoice\\.");
871: }
872:
1.29 matthew 873: #----------------------------------------------------- browse
874: sub browse {
875: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 876: my ($id, $mode, $titleid) = @_;
1.29 matthew 877: my $form = 'lonhomework';
1.42 matthew 878: my $element;
879: if (! defined($mode) || $mode eq 'attribute') {
1.102 ! www 880: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.42 matthew 881: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 ! www 882: $element = &escape('homework_edit_'.
1.68 albertel 883: $Apache::lonxml::curdepth);
884: }
885: my $titleelement;
886: if ($titleid) {
1.102 ! www 887: $titleelement=",'','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.42 matthew 888: }
1.29 matthew 889: my $result = <<"ENDBUTTON";
1.68 albertel 890: <a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
1.29 matthew 891: ENDBUTTON
892: return $result;
893: }
894:
1.30 matthew 895: #----------------------------------------------------- browse
896: sub search {
897: # insert a link to call up the filesystem browser (lonindexer)
1.68 albertel 898: my ($id, $mode, $titleid) = @_;
1.30 matthew 899: my $form = 'lonhomework';
1.49 www 900: my $element;
901: if (! defined($mode) || $mode eq 'attribute') {
1.102 ! www 902: $element = &escape("$id\_$Apache::lonxml::curdepth");
1.49 www 903: } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
1.102 ! www 904: $element = &escape('homework_edit_'.
1.49 www 905: $Apache::lonxml::curdepth);
906: }
1.68 albertel 907: my $titleelement;
908: if ($titleid) {
1.102 ! www 909: $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
1.68 albertel 910: }
1.30 matthew 911: my $result = <<"ENDBUTTON";
1.68 albertel 912: <a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
1.30 matthew 913: ENDBUTTON
914: return $result;
915: }
916:
917:
1.1 albertel 918: 1;
919: __END__
1.26 harris41 920:
921: =head1 NAME
922:
923: Apache::edit - edit mode helpers
924:
925: =head1 SYNOPSIS
926:
927: Invoked by many homework and xml related modules.
928:
929: &Apache::edit::SUBROUTINENAME(ARGUMENTS);
930:
931: =head1 INTRODUCTION
932:
933: This module outputs HTML syntax helpful for the rendering of edit
934: mode interfaces.
935:
936: This is part of the LearningOnline Network with CAPA project
937: described at http://www.lon-capa.org.
938:
939: =head1 HANDLER SUBROUTINE
940:
941: There is no handler subroutine.
942:
943: =head1 OTHER SUBROUTINES
944:
945: =over 4
946:
947: =item *
948:
949: initialize_edit() : initialize edit (set colordepth to zero)
950:
951: =item *
952:
953: tag_start($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
1.27 matthew 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.
1.26 harris41 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
1.29 matthew 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
1.30 matthew 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
1.29 matthew 1025: the form element $elementname.
1.31 matthew 1026:
1.34 harris41 1027: =item *
1.32 albertel 1028: editline(tag,data,description,size): Provide a <input type="text" ../> for
1.31 matthew 1029: single-line text entry. This is to be used for text enclosed by tags, not
1030: arguements/parameters associated with a tag.
1.26 harris41 1031:
1032: =back
1033:
1034: incomplete...
1035:
1036: =cut
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