Annotation of loncom/homework/structuretags.pm, revision 1.479
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.479 ! raeburn 4: # $Id: structuretags.pm,v 1.478 2010/11/03 17:06:28 raeburn Exp $
1.74 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: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.469 www 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startpartmarker','startouttext','endpartmarker','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.478 raeburn 164: sub file_delchk_js {
165: my $delfilewarn = &mt('You have indicated you wish to delete some files previously included for submission.').'\\n'.
166: &mt('Deleted files will not be graded.').' '.
167: &mt('Submit Answer?');
168: return <<"ENDSCRIPT";
169: <script type="text/javascript">
170: function file_deletion_check(formname) {
171: var str = new RegExp("^HWFILE.+_delete\$");
172: var delfilecount = 0;
173: var elemnum = formname.elements.length;
174: if (elemnum == 0) {
175: return true;
176: }
177: for (i=0; i<formname.elements.length; i++) {
178: var id = formname.elements[i].id;
179: if (id != '') {
180: if (str.test(id)) {
181: if (formname.elements[i].type == 'checkbox') {
182: if (formname.elements[i].checked) {
183: delfilecount ++;
184: }
185: }
186: }
187: }
188: }
189: if (delfilecount > 0) {
190: if (confirm("$delfilewarn")) {
191: return true;
192: } else {
193: return false;
194: }
195: } else {
196: return true;
197: }
198: }
199: </script>
200: ENDSCRIPT
201: }
202:
1.48 albertel 203: sub page_start {
1.345 albertel 204: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
205: $extra_head)=@_;
1.159 albertel 206: my %found;
1.207 albertel 207: foreach my $taginside (@$tagstack) {
1.159 albertel 208: foreach my $taglookedfor ('html','body','form') {
209: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
210: }
211: }
212:
1.343 albertel 213: if ($target eq 'tex') {
214: return
215: &Apache::londefdef::start_html($target,$token,$tagstack,
216: $parstack,$parser,$safeeval);
217: }
218:
1.474 raeburn 219: $extra_head .= &homework_js().
220: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
221: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
222: my %textarea_args = (
223: dragmath => 'math',
224: );
225: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 226: }
1.478 raeburn 227: my $is_task = ($env{'request.uri'} =~ /\.task$/);
228: if ($is_task) {
229: $extra_head .= &file_delchk_js();
230: }
1.425 raeburn 231:
1.344 albertel 232: my %body_args;
233: if (defined($found{'html'})) {
234: $body_args{'skip_phases'}{'head'}=1;
235: } else {
1.343 albertel 236:
1.345 albertel 237: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 238:
1.379 albertel 239: $extra_head .= &Apache::londefdef::generate_css_links();
240:
1.384 albertel 241: if ($env{'request.state'} eq 'construct') {
1.343 albertel 242: $extra_head.=&Apache::edit::js_change_detection().
243: "<script type=\"text/javascript\">\n".
244: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
245: &Apache::loncommon::browser_and_searcher_javascript().
246: "\n</script>\n";
247: }
1.159 albertel 248: }
1.343 albertel 249:
1.446 bisitz 250: my $pageheader = '';
1.344 albertel 251: if (defined($found{'body'})) {
252: $body_args{'skip_phases'}{'body'}=1;
253: } elsif (!defined($found{'body'})
254: && $env{'request.state'} eq 'construct') {
1.343 albertel 255: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 256: # Breadcrumbs for Construction Space
257: &Apache::lonhtmlcommon::clear_breadcrumbs();
258: &Apache::lonhtmlcommon::add_breadcrumb({
259: 'text' => 'Construction Space',
260: 'href' => &Apache::loncommon::authorspace(),
261: });
1.460 droeschl 262: # breadcrumbs (and tools) will be created
263: # in start_page->bodytag->innerregister
264:
1.450 bisitz 265: # FIXME Where are we?
266: # &Apache::lonhtmlcommon::add_breadcrumb({
267: # 'text' => 'Problem Editing', # 'Problem Testing'
268: # 'href' => '',
269: # });
1.460 droeschl 270: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 271: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 272: }
1.272 albertel 273: } elsif (!defined($found{'body'})) {
1.343 albertel 274: my %add_entries;
1.159 albertel 275: my $background=&Apache::lonxml::get_param('background',$parstack,
276: $safeeval);
1.343 albertel 277: if ($background ne '' ) {
278: $add_entries{'background'} = $background;
279: }
1.344 albertel 280:
1.290 albertel 281: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
282: $safeeval);
1.446 bisitz 283: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 284:
1.446 bisitz 285: $body_args{'bgcolor'} = $bgcolor;
286: # $body_args{'no_title'} = 1;
287: $body_args{'force_register'} = 1;
288: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 289: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 290: $body_args{'only_body'} = 1;
291: }
1.344 albertel 292: }
1.365 albertel 293: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 294: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
295: \%body_args);
1.446 bisitz 296: $page_start .= $pageheader;
1.462 raeburn 297: if (!defined($found{'body'})
298: && $env{'request.state'} ne 'construct'
299: && ($target eq 'web' || $target eq 'webgrade')) {
300:
301: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
302: if ($symb eq '' && !$publicuser) {
303: $page_start .= '<p class="LC_info">'
304: .&mt('Browsing resource, all submissions are temporary.')
305: .'</p>';
1.457 bisitz 306: }
1.344 albertel 307: }
308:
1.409 albertel 309: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 310: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 311: }
1.344 albertel 312:
1.159 albertel 313: my $form_tag_start;
314: if (!defined($found{'form'})) {
1.337 albertel 315: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 316: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 317: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 318: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 319: $form_tag_start.=$uri.'" ';
320: if ($target eq 'edit') {
321: $form_tag_start.=&Apache::edit::form_change_detection();
322: }
1.478 raeburn 323: if ($is_task) {
324: $form_tag_start .= ' onsubmit="return file_deletion_check(this);"';
325: }
1.368 albertel 326: $form_tag_start.='>'."\n";
1.355 albertel 327:
328: my $symb=&Apache::lonnet::symbread();
329: if ($symb =~ /\S/) {
330: $symb=
331: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
332: $form_tag_start.=
1.368 albertel 333: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 334: }
1.159 albertel 335: }
1.343 albertel 336: return ($page_start,$form_tag_start);
1.105 albertel 337: }
338:
1.141 matthew 339: #use Time::HiRes();
1.105 albertel 340: sub get_resource_name {
1.159 albertel 341: my ($parstack,$safeeval)=@_;
1.388 foxr 342: my $name;
1.204 albertel 343: if (defined($Apache::lonhomework::name)) {
1.388 foxr 344: $name = $Apache::lonhomework::name;
345: } else {
346: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 347: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 348: if ($name eq '') {
349: $name=&Apache::lonnet::EXT('resource.title');
350: if ($name eq 'con_lost') { $name = ''; }
351: }
352: if ($name!~/\S+/) {
353: $name=$env{'request.uri'};
354: $name=~s-.*/([^/]+)$-$1-;
355: }
356: # The name has had html tags escaped:
357:
358: $name=~s/</</gs;
359: $name=~s/>/>/gs;
360:
361: $Apache::lonhomework::name=$name;
1.204 albertel 362: }
1.159 albertel 363: return $name;
1.105 albertel 364: }
365:
366: sub setup_rndseed {
1.479 ! raeburn 367: my ($safeeval,$target)=@_;
1.367 albertel 368: my ($symb)=&Apache::lonnet::whichuser();
1.479 ! raeburn 369: my ($questiontype,$set_safespace,$rndseed);
! 370: if ($target eq 'analyze') {
! 371: $questiontype = $env{'form.grade_questiontype'};
! 372: }
! 373: unless (defined($questiontype)) {
! 374: $questiontype = $Apache::lonhomework::type;
! 375: }
1.333 albertel 376: if ($env{'request.state'} eq "construct"
377: || $symb eq ''
378: || $Apache::lonhomework::type eq 'practice'
379: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 380: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 381: ['rndseed']);
1.284 albertel 382: $rndseed=$env{'form.rndseed'};
1.159 albertel 383: if (!$rndseed) {
1.162 albertel 384: $rndseed=$Apache::lonhomework::history{'rndseed'};
385: if (!$rndseed) {
386: $rndseed=time;
387: }
1.284 albertel 388: $env{'form.rndseed'}=$rndseed;
1.162 albertel 389: }
1.479 ! raeburn 390: if (($env{'request.state'} eq "construct") &&
! 391: ($Apache::lonhomework::type eq 'randomizetry')) {
! 392: my $tries = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
! 393: if ($tries) {
! 394: $rndseed += $tries;
! 395: }
! 396: }
1.374 albertel 397: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
398: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 399: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 400: srand(time);
401: $rndseed=int(rand(2100000000));
1.284 albertel 402: $env{'form.rndseed'}=$rndseed;
403: delete($env{'form.resetdata'});
404: delete($env{'form.newrandomization'});
1.159 albertel 405: }
1.187 albertel 406: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 407: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 408: }
1.247 albertel 409: if ($Apache::lonhomework::history{'resource.CODE'}) {
410: $rndseed=&Apache::lonnet::rndseed();
411: }
1.479 ! raeburn 412: $set_safespace = 1;
! 413: } elsif ($questiontype eq 'randomizetry') {
! 414: if ($target eq 'analyze') {
! 415: if (defined($env{'form.grade_rndseed'})) {
! 416: $rndseed = $env{'form.grade_rndseed'};
! 417: }
! 418: }
! 419: unless (($target eq 'analyze') && (defined($rndseed))) {
! 420: $rndseed=&Apache::lonnet::rndseed();
! 421: my $curr_try = $Apache::lonhomework::history{"resource.$Apache::inputtags::part.tries"};
! 422: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
! 423: $curr_try ++;
! 424: }
! 425: if ($rndseed =~/^(\d+)[,:](\d+)$/) {
! 426: $rndseed = $1;
! 427: }
! 428: if ($curr_try) {
! 429: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
! 430: if (($reqtries =~ /^\d+$/) && ($reqtries > 1)) {
! 431: my $inc = int(($curr_try-1)/$reqtries);
! 432: $rndseed += $inc;
! 433: } else {
! 434: $rndseed += $curr_try;
! 435: }
! 436: }
! 437: }
! 438: $set_safespace = 1;
! 439: }
! 440: if ($set_safespace) {
! 441: if ($safeeval) {
! 442: &Apache::lonxml::debug("Setting rndseed to $rndseed");
! 443: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
! 444: }
! 445: }
! 446: unless (($env{'request.state'} eq "construct") || ($symb eq '')) {
! 447: $env{'form.'.$Apache::inputtags::part.'.rndseed'}=$rndseed;
1.159 albertel 448: }
449: return $rndseed;
1.105 albertel 450: }
451:
1.268 albertel 452: sub remember_problem_state {
453: return '
1.284 albertel 454: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
455: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
456: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 457: }
458:
1.423 www 459: sub problem_edit_buttons {
460: return '
1.408 albertel 461: <div class="LC_edit_problem_discards">
1.416 raeburn 462: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 463: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 464: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 465: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 466: </div>
467: <div class="LC_edit_problem_saves">
1.416 raeburn 468: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
469: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 470: </div>';
471: }
472:
473: sub problem_edit_header {
474: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
475: &Apache::structuretags::remember_problem_state().'
476: <div class="LC_edit_problem_header">
477: <div class="LC_edit_problem_header_title">
478: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
479: </div>'.
480: &problem_edit_buttons().'
1.459 bisitz 481: <hr style="clear:both;" />
1.409 albertel 482: '.&Apache::lonxml::message_location().'
1.408 albertel 483: </div>
484: '.
1.458 bisitz 485: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 486: }
487:
488: sub problem_edit_footer {
1.412 albertel 489: return '</td></tr></table><br />
490: <div class="LC_edit_problem_footer">
1.453 bisitz 491: <hr />'.
1.423 www 492: &problem_edit_buttons().'
1.459 bisitz 493: <hr style="clear:both;" />
1.412 albertel 494: </div>
495: '.
1.342 albertel 496: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 497: }
498:
1.235 albertel 499: sub option {
500: my ($value,$name) = @_;
501: my $result ="<option value='".$value."' ";
1.284 albertel 502: if ($env{'form.'.$name} eq $value) {
1.235 albertel 503: $result.=" selected='on' ";
504: }
505: $result.='>';
506: return $result;
507: }
508:
1.105 albertel 509: sub problem_web_to_edit_header {
1.159 albertel 510: my ($rndseed)=@_;
1.406 albertel 511: my $result .= '<div class="LC_edit_problem_header">';
512:
513: if (!$Apache::lonhomework::parsing_a_task) {
514: $result .=
515: '<div class="LC_edit_problem_header_title">'.
516: &mt('Problem Testing').
517: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
518: '</div>';
519: } else {
520: $result .=
521: '<div class="LC_edit_problem_header_title">'.
522: &mt('Task Testing').
523: '</div>';
524: }
525:
1.315 albertel 526: my $show_all_foils_text =
527: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 528: &mt('Show All Instances')
529: : &mt('Show All Foils');
1.315 albertel 530:
1.452 bisitz 531: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
532: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 533: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 534: $show_all.= ' /> '.$show_all_foils_text
535: .'</label></span>';
1.406 albertel 536:
537:
1.384 albertel 538:
1.406 albertel 539: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 540: if (!$Apache::lonhomework::parsing_a_task) {
541: $result.="
1.406 albertel 542: <div class='LC_edit_problem_header_row1'>
543: <span class=\"LC_nobreak\">
1.405 albertel 544: ".&mt("Problem Status:")."
1.235 albertel 545: <select name='problemstate'>
1.270 albertel 546: <option value=''></option>
1.235 albertel 547: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
548: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
549: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
550: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
551: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
552: </select>
1.406 albertel 553: </span>
554: <span class=\"LC_nobreak\">
1.405 albertel 555: ".&mt("Problem Type:")."
1.235 albertel 556: <select name='problemtype'>
1.270 albertel 557: <option value=''></option>
1.242 albertel 558: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 559: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 560: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 561: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
562: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
563: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 564: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.479 ! raeburn 565: ".&option('randomizetry' ,'problemtype').&mt("New Randomization Each Try")."</option>
1.235 albertel 566: </select>
1.406 albertel 567: </span>
568: $show_all
569: </div>
570: <div class='LC_edit_problem_header_row2'>
571: <span class=\"LC_nobreak\">
1.405 albertel 572: ".&mt("Feedback Mode:")."
1.235 albertel 573: <select name='problemstatus'>
574: <option value=''></option>
1.242 albertel 575: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 576: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
577: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 578: </select>
1.406 albertel 579: </span>
580: ";
581:
1.376 albertel 582: } elsif ($Apache::lonhomework::parsing_a_task) {
583: $result.="
1.406 albertel 584: <div class='LC_edit_problem_header_row1'>
585: <span class=\"LC_nobreak\">
1.405 albertel 586: ".&mt("Problem Status:")."
1.376 albertel 587: <select name='problemstate'>
588: <option value=''></option>
589: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
590: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
591: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
592: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
593: </select>
1.406 albertel 594: </span>
595: $show_all
596: ";
597: }
598: $result.='
599: <span class="LC_nobreak">
600: '.&mt('Apply style file: ').'
601: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
602: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
603: </span>
1.422 www 604: </div>
605: <div class="LC_edit_problem_header_row1">'.
606: &Apache::lonxml::renderingoptions().'
1.406 albertel 607: </div>
608: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
609: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
610: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
611: </div>
1.453 bisitz 612: <hr />
1.406 albertel 613: <div class="LC_edit_problem_header_randomize_row">
614: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
615: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
616: <input type="text" name="rndseed" size="10" value="'.
617: $rndseed.'"
618: onchange="javascript:document.lonhomework.changerandseed.click()" />';
619:
620: if (!$Apache::lonhomework::parsing_a_task) {
621: my $numtoanalyze=$env{'form.numtoanalyze'};
622: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 623: $result .= '<span class="LC_nobreak">'.
624: &mt('[_1] for [_2] versions.',
1.416 raeburn 625: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 626: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
627: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 628: $numtoanalyze.'" size="5" />').
629: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
630: '</span>';
631:
1.313 albertel 632: }
1.406 albertel 633:
634: $result.='
635: </div>
1.453 bisitz 636: <hr />
1.447 bisitz 637: <div>';
1.416 raeburn 638: $result.='<input type="hidden" name="problemmode" value="view" />';
639: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
640: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
641: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
642: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 643: $result.='
644: </div>
1.453 bisitz 645: <hr />
1.409 albertel 646: '.&Apache::lonxml::message_location().'
1.406 albertel 647: </div>';
1.159 albertel 648: return $result;
1.48 albertel 649: }
650:
1.65 albertel 651: sub initialize_storage {
1.357 albertel 652: my ($given_symb) = @_;
1.353 albertel 653: undef(%Apache::lonhomework::results);
654: undef(%Apache::lonhomework::history);
1.357 albertel 655: my ($symb,$courseid,$domain,$name) =
1.367 albertel 656: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 657:
658: # anonymous users (CODEd exams) have no data
659: if ($name eq 'anonymous'
660: && !defined($domain)) {
661: return;
662: }
663:
1.333 albertel 664: if ($env{'request.state'} eq 'construct'
665: || $symb eq ''
666: || $Apache::lonhomework::type eq 'practice') {
667:
668: my $namespace = $symb || $env{'request.uri'};
669: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 670: ($env{'form.resetdata'} eq &mt('New Problem Variation')
671: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 672: $env{'form.newrandomization'} eq &mt('New Randomization')) {
673: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
674: &Apache::lonxml::debug("Attempt reset");
675: }
1.159 albertel 676: %Apache::lonhomework::history=
1.333 albertel 677: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 678: my ($temp)=keys %Apache::lonhomework::history ;
679: &Apache::lonxml::debug("Return message of $temp");
680: } else {
681: %Apache::lonhomework::history=
682: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
683: }
1.353 albertel 684:
1.159 albertel 685: #ignore error conditions
1.67 albertel 686: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 687: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 688: }
689:
1.435 jms 690: =pod
691:
692: =item finalize_storage()
693:
694: Stores away the result has to a student's environment
695: checks form.grade_ for specific values, other wises stores
696: to the running users environment
697: Will increment totals for attempts, students, and corrects
698: if running user has student role.
699:
700: =cut
701:
702:
1.65 albertel 703: sub finalize_storage {
1.357 albertel 704: my ($given_symb) = @_;
1.159 albertel 705: my $result;
1.289 albertel 706: if (%Apache::lonhomework::results) {
1.323 albertel 707: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
708: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 709: my ($symb,$courseid,$domain,$name) =
1.367 albertel 710: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 711: if ($env{'request.state'} eq 'construct'
712: || $symb eq ''
713: || $Apache::lonhomework::type eq 'practice') {
714: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 715: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 716: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 717: $namespace,'',$domain,$name);
1.159 albertel 718: &Apache::lonxml::debug('Construct Store return message:'.$result);
719: } else {
1.479 ! raeburn 720: if ($Apache::lonhomework::type eq 'randomizetry') {
! 721: foreach my $key (keys(%Apache::lonhomework::results)) {
! 722: if ($key =~ /^resource\.([^\.]+)\.tries/) {
! 723: $Apache::lonhomework::results{'resource.'.$1.'.rndseed'}=$env{'form.'.$1.'.rndseed'};
! 724: }
! 725: }
! 726: }
1.159 albertel 727: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
728: $symb,$courseid,$domain,$name);
729: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 730: &store_aggregates($symb,$courseid);
1.159 albertel 731: }
1.323 albertel 732: } else {
733: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 734: }
1.159 albertel 735: return $result;
1.65 albertel 736: }
737:
1.435 jms 738: =pod
739:
740: item store_aggregates()
741:
742: Sends hash of values to be incremented in nohist_resourcetracker.db
743: for the course. Increments total number of attempts, unique students
744: and corrects for each part for an instance of a problem, as appropriate.
745:
746: =cut
747:
1.285 raeburn 748: sub store_aggregates {
749: my ($symb,$courseid) = @_;
1.479 ! raeburn 750: my (%aggregate,%anoncounter,%randtrycounter);
1.286 albertel 751: my @parts;
1.288 albertel 752: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
753: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 754: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 755: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 756: push(@parts, $1);
1.285 raeburn 757: }
758: }
1.286 albertel 759: foreach my $part (@parts) {
1.470 raeburn 760: if ($env{'request.role'} =~/^st/) {
761: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
762: eq 'APPROX_ANS' ||
763: $Apache::lonhomework::results{'resource.'.$part.'.award'}
764: eq 'EXACT_ANS') {
765: $aggregate{$symb."\0".$part."\0correct"} = 1;
766: }
767: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
768: $aggregate{$symb."\0".$part."\0users"} = 1;
769: } else {
770: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
771: if ($last_reset) {
772: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
773: $aggregate{$symb."\0".$part."\0users"} = 1;
774: }
775: }
776: }
777: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 778: }
1.470 raeburn 779: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
1.479 ! raeburn 780: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred') ||
! 781: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry')) {
! 782: if ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'randomizetry') {
! 783: $randtrycounter{$symb."\0".$part} = 1;
! 784: } else {
! 785: $anoncounter{$symb."\0".$part} = 1;
! 786: }
1.470 raeburn 787: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
788: if ($needsrelease) {
789: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
790: if ($curr_required eq '') {
1.471 raeburn 791: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 792: } else {
793: my ($currmajor,$currminor) = split(/\./,$curr_required);
794: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
795: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 796: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 797: }
1.292 raeburn 798: }
799: }
1.285 raeburn 800: }
801: }
1.292 raeburn 802: if (keys (%aggregate) > 0) {
1.289 albertel 803: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 804: $cdomain,$cname);
805: }
1.472 raeburn 806: if (keys(%anoncounter) > 0) {
807: &Apache::lonnet::cinc('nohist_anonsurveys',\%anoncounter,
808: $cdomain,$cname);
809: }
1.479 ! raeburn 810: if (keys(%randtrycounter) > 0) {
! 811: &Apache::lonnet::cinc('nohist_randomizetry',\%randtrycounter,
! 812: $cdomain,$cname);
! 813: }
1.292 raeburn 814: }
1.289 albertel 815:
1.65 albertel 816: sub checkout_msg {
1.211 albertel 817: my %lt=&Apache::lonlocal::texthash(
818: 'resource'=>'The resource needs to be checked out',
819: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
820: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
821: 'checkout'=>'Check out Exam for Viewing',
822: 'checkout?'=>'Check out Exam?');
1.352 albertel 823: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 824: return (<<ENDCHECKOUT);
1.211 albertel 825: <h2>$lt{'resource'}</h2>
826: <p>$lt{'id_expln'}</p>
1.449 bisitz 827: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 828: <form name="checkout" method="post" action="$uri">
1.91 albertel 829: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 830: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 831: </form>
832: ENDCHECKOUT
833: }
834:
1.252 albertel 835: sub firstaccess_msg {
1.253 albertel 836: my ($time,$symb)=@_;
1.414 albertel 837: my $result;
838: my @interval=&Apache::lonnet::EXT("resource.0.interval");
839: if ($interval[1] eq 'map') {
840: my ($map)=&Apache::lonnet::decode_symb($symb);
841: my $foldertitle=&Apache::lonnet::gettitle($map);
842:
843: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 844: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
845: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
846: ,$foldertitle,$time)."</h2>";
1.414 albertel 847: } elsif ($interval[1] eq 'course') {
848: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 849: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
850: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
851: ,$course,$time)."</h2>";
1.414 albertel 852: } else {
853: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 854: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
855: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
856: ,$title,$time)."</h2>";
1.414 albertel 857: }
1.352 albertel 858: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 859: my $buttontext = &mt('Show Resource');
860: my $timertext = &mt('Start Timer?');
1.414 albertel 861: $result .= (<<ENDCHECKOUT);
1.444 bisitz 862: <form name="markaccess" method="post" action="$uri">
1.252 albertel 863: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 864: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 865: </form>
866: ENDCHECKOUT
1.414 albertel 867: return $result;
1.252 albertel 868: }
869:
1.204 albertel 870: sub init_problem_globals {
871: my ($type)=@_;
872: #initialize globals
1.308 foxr 873: # For problems, we start out in part 0 (outside a <part> tag).
874: # and part 0 is used to describe the main body of the <problem>
875: #
1.204 albertel 876: if ($type eq 'problem') {
877: $Apache::inputtags::part='0';
878: @Apache::inputtags::partlist=('0');
1.405 albertel 879: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 880: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 881:
1.266 albertel 882: } elsif ($type eq 'library') {
1.204 albertel 883: $Apache::inputtags::part='';
884: @Apache::inputtags::partlist=();
1.405 albertel 885: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 886: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 887:
1.304 albertel 888: } elsif ($type eq 'Task') {
889: $Apache::inputtags::part='0';
890: @Apache::inputtags::partlist=('0');
1.405 albertel 891: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 892: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 893: }
1.477 www 894: @Apache::functionplotresponse::callscripts=();
1.204 albertel 895: @Apache::inputtags::responselist = ();
896: @Apache::inputtags::importlist = ();
897: @Apache::inputtags::previous=();
898: @Apache::inputtags::previous_version=();
899: $Apache::structuretags::printanswer='No';
900: @Apache::structuretags::whileconds=();
901: @Apache::structuretags::whilebody=();
902: @Apache::structuretags::whileline=();
903: $Apache::lonhomework::scantronmode=0;
904: undef($Apache::lonhomework::name);
1.358 albertel 905: undef($Apache::lonhomework::default_type);
906: undef($Apache::lonhomework::type);
1.204 albertel 907: }
908:
909: sub reset_problem_globals {
910: my ($type)=@_;
911: undef(%Apache::lonhomework::history);
912: undef(%Apache::lonhomework::results);
913: undef($Apache::inputtags::part);
1.208 albertel 914: #don't undef this, lonhomework.pm takes care of this, we use this to
915: #detect if we try to do 2 problems in one file
916: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 917: undef($Apache::lonhomework::name);
1.358 albertel 918: undef($Apache::lonhomework::default_type);
919: undef($Apache::lonhomework::type);
920: undef($Apache::lonhomework::scantronmode);
921: undef($Apache::lonhomework::ignore_response_errors);
1.477 www 922: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 923: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 924: }
925:
1.241 albertel 926: sub set_problem_state {
1.240 albertel 927: my ($part)=@_;
1.284 albertel 928: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 929: $Apache::lonhomework::history{"resource.$part.solved"}=
930: 'correct_by_student';
931: }
932: }
933:
1.241 albertel 934: sub get_problem_status {
935: my ($part)=@_;
1.267 albertel 936: my $problem_status;
1.284 albertel 937: if ($env{'request.state'} eq 'construct' &&
938: defined($env{'form.problemstatus'})) {
939: $problem_status=$env{'form.problemstatus'};
1.267 albertel 940: } else {
941: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
942: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 943: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 944: }
945: return $problem_status;
946: }
947:
1.9 albertel 948: sub start_problem {
1.326 albertel 949: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 950:
1.311 foxr 951: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 952: if (!$Apache::lonxml::metamode) {
953: &Apache::lonxml::startredirection();
954: }
1.311 foxr 955:
1.308 foxr 956: # Problems don't nest and we don't allow more than one <problem> in
957: # a .problem file.
958: #
1.184 albertel 959: if ( $Apache::inputtags::part ne '' ||
960: $Apache::lonhomework::parsing_a_problem) {
961: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 962: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 963: return '';
964: }
1.184 albertel 965:
966: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 967: &init_problem_globals('problem');
1.166 albertel 968:
1.284 albertel 969: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 970: $Apache::lonhomework::scantronmode=1;
971: }
1.161 albertel 972:
1.159 albertel 973: if ($target ne 'analyze') {
1.415 raeburn 974: my $type = &Apache::lonnet::EXT('resource.0.type');
975: $Apache::lonhomework::type=$type;
1.284 albertel 976: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 977: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 978: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 979: }
1.332 albertel 980: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 981: }
1.164 albertel 982: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 983: my $uri=$env{'request.uri'};
1.159 albertel 984: if ($uri=~/\.(\w+)$/) {
985: $Apache::lonhomework::type=$1;
986: &Apache::lonxml::debug("Using type of $1");
987: } else {
988: $Apache::lonhomework::type='problem';
989: &Apache::lonxml::debug("Using default type, problem, :$uri:");
990: }
1.87 albertel 991: }
1.301 albertel 992: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 993:
1.363 albertel 994: &initialize_storage();
1.389 albertel 995: if ($target ne 'analyze'
996: && $env{'request.state'} eq 'construct') {
997: &set_problem_state('0');
998: }
999:
1.366 albertel 1000: if ($target eq 'web') {
1001: &Apache::lonxml::debug(" grading history ");
1002: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1003: }
1.363 albertel 1004:
1.159 albertel 1005: #added vars to the scripting enviroment
1.213 albertel 1006: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 1007: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 1008: &Apache::run::run($expression,$safeeval);
1.159 albertel 1009: my $status;
1010: my $accessmsg;
1011:
1.343 albertel 1012: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 1013: my ($result,$form_tag_start);
1.354 albertel 1014: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
1015: || $target eq 'edit') {
1.350 albertel 1016: ($result,$form_tag_start) =
1017: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1018: $name);
1019: }
1020:
1.284 albertel 1021: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 1022:
1.479 ! raeburn 1023: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval,$target); }
1.159 albertel 1024: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1025: $target eq 'tex') {
1.284 albertel 1026: if ($env{'form.markaccess'}) {
1.414 albertel 1027: my @interval=&Apache::lonnet::EXT("resource.0.interval");
1028: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 1029: }
1.479 ! raeburn 1030:
! 1031: ($status,$accessmsg,my $slot_name,my $slot) =
! 1032: &Apache::lonhomework::check_slot_access('0','problem');
! 1033: push (@Apache::inputtags::status,$status);
! 1034:
1.159 albertel 1035: #handle rand seed in construction space
1.479 ! raeburn 1036: my $rndseed=&setup_rndseed($safeeval,$target);
1.367 albertel 1037: my ($symb)=&Apache::lonnet::whichuser();
1.479 ! raeburn 1038:
1.333 albertel 1039: if ($env{'request.state'} ne "construct" &&
1040: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 1041: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 1042: $rndseed.'" />'.
1043: '<input type="submit" name="resetdata"
1044: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 1045: if (exists($env{'form.username'})) {
1046: $form_tag_start.=
1.164 albertel 1047: '<input type="hidden" name="username"
1.284 albertel 1048: value="'.$env{'form.username'}.'" />';
1.334 albertel 1049: }
1.462 raeburn 1050: if ($env{'request.role.adv'}) {
1051: $form_tag_start.= ' <label class="LC_nobreak">'
1052: .'<input type="checkbox" name="showallfoils"';
1053: if (defined($env{'form.showallfoils'})) {
1054: $form_tag_start.=' checked="checked"';
1055: }
1056: $form_tag_start.= ' /> '
1057: .&mt('Show All Foils')
1058: .'</label>';
1059: }
1.417 www 1060: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 1061: $form_tag_start.=&practice_problem_header();
1.417 www 1062: }
1.462 raeburn 1063: $form_tag_start.='<hr />';
1.479 ! raeburn 1064: } elsif (($env{'request.state'} ne "construct") &&
! 1065: ($Apache::lonhomework::type eq 'randomizetry') &&
! 1066: ($status eq 'CAN_ANSWER')) {
! 1067: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
! 1068: my $problemstatus = &get_problem_status($Apache::inputtags::part);
! 1069: $form_tag_start.=&randomizetry_problem_header($problemstatus,$reqtries);
! 1070: }
1.324 albertel 1071:
1.159 albertel 1072: my $expression='$external::datestatus="'.$status.'";';
1073: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
1074: &Apache::run::run($expression,$safeeval);
1075: &Apache::lonxml::debug("Got $status");
1.324 albertel 1076:
1.159 albertel 1077: if (( $status eq 'CLOSED' ) ||
1078: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1079: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 1080: ( $status eq 'BANNED') ||
1.216 albertel 1081: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 1082: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 1083: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1084: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1085: $style);
1.159 albertel 1086: if ( $target eq "web" ) {
1.343 albertel 1087: my $msg;
1.159 albertel 1088: if ($status eq 'UNAVAILABLE') {
1.245 albertel 1089: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 1090: } elsif ($status eq 'NOT_IN_A_SLOT') {
1091: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 1092: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 1093: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 1094: }
1.216 albertel 1095: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 1096: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 1097: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 1098: $msg.=&checkout_msg();
1.252 albertel 1099: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 1100: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 1101: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 1102: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 1103: }
1104: $result.=$msg.'<br />';
1105: } elsif ($target eq 'tex') {
1.332 albertel 1106: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
1107: : '\begin{minipage}{\textwidth}';
1.443 foxr 1108: $result.='\noindent \vskip 1 mm '.
1.332 albertel 1109: $startminipage.'\vskip 0 mm';
1.159 albertel 1110: if ($status eq 'UNAVAILABLE') {
1.211 albertel 1111: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 1112: } else {
1.211 albertel 1113: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 1114: }
1115: }
1.324 albertel 1116: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1117: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1118: $style);
1.324 albertel 1119: if ($target eq 'web') {
1.375 albertel 1120: $result .=
1121: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1122: } elsif ($target eq 'grade') {
1123: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1124: 'problem');
1125: }
1.159 albertel 1126: } elsif ($target eq 'web') {
1.360 albertel 1127: if ($status eq 'CAN_ANSWER'
1128: && $slot_name ne ''
1129: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1130: # unproctored slot access, self checkin
1131: &Apache::bridgetask::check_in('problem',undef,undef,
1132: $slot_name);
1133: }
1.368 albertel 1134: $result.="\n $form_tag_start \t".
1.227 albertel 1135: '<input type="hidden" name="submitted" value="yes" />';
1136: # create a page header and exit
1.284 albertel 1137: if ($env{'request.state'} eq "construct") {
1138: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1139: if ($Apache::lonhomework::type eq 'practice') {
1140: $result.= '<input type="submit" name="resetdata" '.
1141: 'value="'.&mt('New Problem Variation').'" />'.
1142: &practice_problem_header().'<hr />';
1143: }
1.227 albertel 1144: }
1145: # if we are viewing someone else preserve that info
1.284 albertel 1146: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1147: foreach my $field ('symb','courseid','domain','username') {
1148: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1149: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1150: }
1.479 ! raeburn 1151: foreach my $field ('trial','questiontype') {
! 1152: if ($env{"form.grade_$field"} ne '') {
! 1153: $result .= '<input type="hidden" name="grade_'.$field.
! 1154: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
! 1155: }
! 1156: }
1.159 albertel 1157: }
1158: } elsif ($target eq 'tex') {
1.319 foxr 1159: $result .= 'INSERTTEXFRONTMATTERHERE';
1160:
1.99 sakharuk 1161: }
1.159 albertel 1162: } elsif ($target eq 'edit') {
1.343 albertel 1163: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1164: $Apache::lonxml::warnings_error_header=
1165: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 1166: my $temp=&Apache::edit::insertlist($target,$token);
1167: $result.=$temp;
1168: } elsif ($target eq 'modified') {
1169: $result=$token->[4];
1170: } else {
1171: # page_start returned a starting result, delete it if we don't need it
1172: $result = '';
1.99 sakharuk 1173: }
1.159 albertel 1174: return $result;
1.9 albertel 1175: }
1176:
1177: sub end_problem {
1.159 albertel 1178: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1179: my $result;
1.310 foxr 1180:
1.321 albertel 1181: if (!$Apache::lonxml::metamode) {
1182: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1183: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1184: }
1.319 foxr 1185:
1186: if ($target eq 'tex') {
1.321 albertel 1187: # Figure out the front matter and replace the
1188: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1189: # this in end_problem because whether or not we display due
1190: # dates depends on whether due dates have already been
1191: # displayed in the problem parts.
1192:
1.319 foxr 1193: my $frontmatter = '';
1194: my $startminipage = '';
1195: if (not $env{'form.problem_split'}=~/yes/) {
1196: $startminipage = '\begin{minipage}{\textwidth}';
1197: }
1198: my $id = $Apache::inputtags::part;
1199: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1200: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1201: my @packages = split /,/,$packages;
1202: my $allow_print_points = 0;
1203: foreach my $partial_key (@packages) {
1204: if ($partial_key=~m/^part_0$/) {
1205: $allow_print_points=1;
1206: }
1207: }
1208: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1209: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1210: if (lc($env{'course.'.$env{'request.course.id'}.
1211: '.disableexampointprint'}) eq 'yes') {
1212: $allow_print_points=0;
1213: }
1214: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1215: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.319 foxr 1216: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1217: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1218:
1219: # Figure out what the due date is and if we need to print
1220: # it in the problem header. We have been logging the
1221: # last due date written to file.
1222:
1223: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1224: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1225: my $duedate_text = &mt('Due date: [_1]'
1226: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1227: my $temp_file;
1228: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1229:
1230: # Figure out what the last printed due date is or set it
1231: # to the epoch if no duedates have been printed.
1232:
1233: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1234: if (-e $filename) {
1235: $temp_file = Apache::File->new($filename);
1236: my @due_file = <$temp_file>;
1237: $due_file_content = $due_file[$#due_file];
1238: chomp $due_file_content;
1239: }
1240:
1241: # We display the due date iff it is not the same as the last
1242: # duedate in problem header ($due_file_content), and
1243: # none of our parts displayed a duedate.
1244: #
1245: my $parts_with_displayduedate;
1246: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1247: $parts_with_displayduedate =
1248: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1249: } else {
1250: $parts_with_displayduedate = 0;
1251: }
1252: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1253: $temp_file = Apache::File->new('>'.$filename);
1254: print $temp_file "$duetime\n";
1255: if (not $env{'request.symb'} =~ m/\.page_/) {
1256: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1257: $frontmatter .= $begin_doc.
1.448 bisitz 1258: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1259: } else {
1260: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1261: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1262: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1263: }
1.319 foxr 1264: }
1265: } else {
1.448 bisitz 1266: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1267: }
1268: } else {
1269: if (not $env{'request.symb'} =~ m/\.page_/) {
1270: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1271: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1272: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1273: }
1.319 foxr 1274: } else {
1.381 albertel 1275: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1276: }
1277: }
1278: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1279: }
1280:
1.159 albertel 1281: my $status=$Apache::inputtags::status['-1'];
1282: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1283: $target eq 'tex') {
1.249 albertel 1284: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1285: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1286: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1287: &Apache::inputtags::grade;
1.324 albertel 1288: } elsif ($status eq 'NEEDS_CHECKIN') {
1289: # no need to grade, and don't want to hide data
1.249 albertel 1290: } else {
1291: # move any submission data to .hidden
1292: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1293: }
1.159 albertel 1294: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1295: $Apache::inputtags::part eq '0' &&
1.252 albertel 1296: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1297: # if part is zero, no <part>s existed, so we need show the current
1298: # grading status
1299: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1300: $result.= $gradestatus;
1301: }
1302: if (
1.284 albertel 1303: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1304: ($target eq 'answer') || ($target eq 'tex')
1305: ) {
1.227 albertel 1306: if ($target ne 'tex' &&
1.284 albertel 1307: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1308: $result.="</form>";
1.159 albertel 1309: }
1310: if ($target eq 'web') {
1.346 albertel 1311: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1312: } elsif ($target eq 'tex') {
1.178 sakharuk 1313: my $endminipage = '';
1.284 albertel 1314: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1315: $endminipage = '\end{minipage}';
1316: }
1.284 albertel 1317: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1318: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1319: } else {
1.262 sakharuk 1320: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1321: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1322: $result .= $endminipage.'\end{document} ';
1323: } else {
1.382 albertel 1324: $result .= $endminipage;
1.262 sakharuk 1325: }
1.159 albertel 1326: }
1327: }
1328: }
1.476 www 1329: if ($target eq 'web') {
1330: $result.=&Apache::functionplotresponse::init_script();
1331: }
1.159 albertel 1332: if ($target eq 'grade') {
1333: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1334: &finalize_storage();
1335: }
1.284 albertel 1336: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1337: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1338: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1339: # normally we get it from above, but in CSTR
1.172 albertel 1340: # we always show answer mode too.
1.159 albertel 1341: }
1342: } elsif ($target eq 'meta') {
1343: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1344: @Apache::inputtags::response=();
1.159 albertel 1345: $result=&Apache::response::mandatory_part_meta;
1346: }
1.215 albertel 1347: $result.=&Apache::response::meta_part_order();
1.258 albertel 1348: $result.=&Apache::response::meta_response_order();
1.159 albertel 1349: } elsif ($target eq 'edit') {
1350: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1351: $result .= &problem_edit_footer();
1.320 albertel 1352: } elsif ($target eq 'modified') {
1353: $result .= $token->[2];
1.159 albertel 1354: }
1.155 albertel 1355:
1.284 albertel 1356: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1357: &Apache::inputtags::check_for_duplicate_ids();
1358: }
1.204 albertel 1359:
1360: &reset_problem_globals('problem');
1.159 albertel 1361:
1362: return $result;
1.48 albertel 1363: }
1364:
1.108 albertel 1365:
1.48 albertel 1366: sub start_library {
1.159 albertel 1367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1368: my ($result,$form_tag_start);
1.371 albertel 1369: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1370: &init_problem_globals('library');
1371: $Apache::lonhomework::type='problem';
1372: }
1.159 albertel 1373: if ($target eq 'edit') {
1.343 albertel 1374: ($result,$form_tag_start)=
1375: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1376: 'Edit');
1377: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1378: my $temp=&Apache::edit::insertlist($target,$token);
1379: $result.=$temp;
1380: } elsif ($target eq 'modified') {
1381: $result=$token->[4];
1.340 albertel 1382: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1383: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1384: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1385: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1386: ($result,$form_tag_start)=
1387: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1388: $name);
1.479 ! raeburn 1389: my $rndseed=&setup_rndseed($safeeval,$target);
1.343 albertel 1390: $result.=" \n $form_tag_start".
1.159 albertel 1391: '<input type="hidden" name="submitted" value="yes" />';
1392: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1393: if ($Apache::lonhomework::type eq 'practice') {
1394: $result.= '<input type="submit" name="resetdata" '.
1395: 'value="'.&mt('New Problem Variation').'" />'.
1396: &practice_problem_header().'<hr />';
1397: }
1.159 albertel 1398: }
1399: return $result;
1.48 albertel 1400: }
1401:
1402: sub end_library {
1.159 albertel 1403: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1404: my $result='';
1405: if ($target eq 'edit') {
1406: $result=&problem_edit_footer();
1.371 albertel 1407: } elsif ($target eq 'web'
1408: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1409: && $env{'request.state'} eq "construct") {
1.349 albertel 1410: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1411: }
1.371 albertel 1412: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1413: &reset_problem_globals('library');
1414: }
1.159 albertel 1415: return $result;
1.197 www 1416: }
1417:
1418: sub start_definetag {
1.326 albertel 1419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1420:
1421: my $result;
1422:
1423: my $name = $token->[2]->{'name'};
1.326 albertel 1424: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1425: if ($target eq 'web') {
1426: if ($name=~/^\//) {
1427: $result=
1428: '<br /><table class="LC_sty_end"><tr><th>'.
1429: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1430: } else {
1431: $result=
1432: '<br /><table class="LC_sty_begin"><tr><th>'.
1433: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1434: }
1435: $skip = &HTML::Entities::encode($skip, '<>&"');
1436: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1437: }
1438: return $result;
1439: }
1440:
1441: sub end_definetag {
1442: return '';
1.1 albertel 1443: }
1444:
1445: sub start_block {
1.201 albertel 1446: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1447:
1448: my $result;
1.1 albertel 1449:
1.339 albertel 1450: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1451: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1452: my $code = $token->[2]->{'condition'};
1.385 albertel 1453: if (defined($code) && $code ne '') {
1.137 albertel 1454: if (!$Apache::lonxml::default_homework_loaded) {
1455: &Apache::lonxml::default_homework_load($safeeval);
1456: }
1.131 albertel 1457: $result = &Apache::run::run($code,$safeeval);
1458: &Apache::lonxml::debug("block :$code: returned :$result:");
1459: } else {
1460: $result='1';
1461: }
1462: if ( ! $result ) {
1.201 albertel 1463: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1464: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1465: }
1466: $result='';
1467: } elsif ($target eq 'edit') {
1468: $result .=&Apache::edit::tag_start($target,$token);
1469: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1470: $token,40);
1471: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1472: } elsif ($target eq 'modified') {
1473: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1474: $safeeval,'condition');
1475: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1476: }
1.131 albertel 1477: return $result;
1.1 albertel 1478: }
1479:
1480: sub end_block {
1.167 www 1481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1482: my $result;
1483: if ($target eq "edit") {
1484: $result.= &Apache::edit::tag_end($target,$token,'');
1485: }
1486: return $result;
1487: }
1488:
1489: sub start_languageblock {
1.201 albertel 1490: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1491:
1492: my $result;
1493:
1.339 albertel 1494: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1495: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1496: my $include = $token->[2]->{'include'};
1497: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1498: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1499: # This should not even happen, since we should at least have the server language
1.398 www 1500: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1501: # Now loop over all languages in order of preference
1502: foreach my $preferred_language (@preferred_languages) {
1.394 www 1503: # If the languageblock has no arguments, show the contents
1.399 www 1504: $result=1;
1505: my $found=0;
1.394 www 1506: # Do we have an include argument?
1.398 www 1507: if ($include) {
1.394 www 1508: # If include is specified, by default, don't render the block
1.399 www 1509: $result=0;
1.398 www 1510: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1511: # ... but if my preferred language is included, render it
1.398 www 1512: if ($included_language eq $preferred_language) {
1.399 www 1513: $result=1;
1514: $found=1;
1.398 www 1515: }
1516: }
1517: }
1.394 www 1518: # Do we have an exclude argument?
1.398 www 1519: if ($exclude) {
1.399 www 1520: $result=1;
1.398 www 1521: foreach my $excluded_language (split(/\,/,$exclude)) {
1522: if ($excluded_language eq $preferred_language) {
1.399 www 1523: $result=0;
1524: $found=1;
1.398 www 1525: }
1526: }
1527: }
1.399 www 1528: if ($found) { last; }
1.398 www 1529: }
1.201 albertel 1530: if ( ! $result ) {
1531: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1532: $style);
1533: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1534: }
1535: $result='';
1.167 www 1536: } elsif ($target eq 'edit') {
1537: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1538: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1539: $token,40);
1.211 albertel 1540: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1541: $token,40);
1542: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1543: } elsif ($target eq 'modified') {
1544: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1545: $safeeval,'include',
1546: 'exclude');
1.167 www 1547: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1548: }
1549: return $result;
1550: }
1551:
1552: sub end_languageblock {
1.170 www 1553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1554: my $result;
1.201 albertel 1555: if ($target eq "edit") {
1.170 www 1556: $result.= &Apache::edit::tag_end($target,$token,'');
1557: }
1558: return $result;
1559: }
1560:
1.397 albertel 1561: {
1562: my %available_texts;
1563: sub start_translated {
1564: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1565: &Apache::lonxml::register('Apache::structuretags',('lang'));
1566: undef(%available_texts);
1567: }
1568:
1569: sub end_translated {
1570: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1571: my $result;
1572: #show the translation on viewable targets
1573: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1574: # or non-viewable targets, if it's embedded in something that
1575: # wants the output
1576: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1577: && &Apache::lonxml::in_redirection() ) ) {
1578: my @possibilities = keys(%available_texts);
1579: my $which =
1580: &Apache::loncommon::languages(\@possibilities) || 'default';
1581: $result = $available_texts{$which};
1582: }
1583: undef(%available_texts);
1584: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1585: return $result;
1586: }
1587:
1588:
1589: sub start_lang {
1590: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1591: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1592: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1593: &Apache::lonxml::startredirection();
1594: }
1595: return '';
1596: }
1597:
1598: sub end_lang {
1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1600: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1601: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1602: my $result = &Apache::lonxml::endredirection();
1603: my $which = &Apache::lonxml::get_param('which',$parstack,
1604: $safeeval);
1.431 raeburn 1605: if ($which=~/\w/) {
1606: $available_texts{$which} = $result;
1607: }
1608: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1609: $safeeval);
1610: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1611: if ($language=~/\w/) {
1612: $available_texts{$language} = $result;
1613: }
1.427 bisitz 1614: }
1615:
1.397 albertel 1616: }
1617: return '';
1618: }
1619: }
1620:
1.170 www 1621: sub start_instructorcomment {
1.201 albertel 1622: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1623:
1624: my $result;
1625:
1.339 albertel 1626: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1627: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1628: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1629: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1630: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1631: $parser,$style);
1.170 www 1632: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1633: }
1634: $result='';
1635: } elsif ($target eq 'edit') {
1636: $result .=&Apache::edit::tag_start($target,$token);
1637: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1638: }
1639: return $result;
1640: }
1641:
1642: sub end_instructorcomment {
1.159 albertel 1643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1644: my $result;
1645: if ($target eq "edit") {
1646: $result.= &Apache::edit::tag_end($target,$token,'');
1647: }
1648: return $result;
1.4 tsai 1649: }
1650:
1651: sub start_while {
1.326 albertel 1652: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1653:
1.160 albertel 1654: my $result;
1.339 albertel 1655: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1656: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1657: my $code = $token->[2]->{'condition'};
1.4 tsai 1658:
1.160 albertel 1659: push( @Apache::structuretags::whileconds, $code);
1660: if (!$Apache::lonxml::default_homework_loaded) {
1661: &Apache::lonxml::default_homework_load($safeeval);
1662: }
1663: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1664: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1665: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1666: push( @Apache::structuretags::whileline, $token->[5]);
1667: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1668: if ( $result ) {
1669: &Apache::lonxml::newparser($parser,\$bodytext);
1670: }
1671: } elsif ($target eq 'edit') {
1672: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1673: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1674: $token,40);
1675: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1676: } elsif ($target eq 'modified') {
1677: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1678: $safeeval,'condition');
1679: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1680: }
1.160 albertel 1681: return $result;
1.4 tsai 1682: }
1683:
1684: sub end_while {
1.159 albertel 1685: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1686: my $result;
1687:
1.339 albertel 1688: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1689: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1690: my $code = pop(@Apache::structuretags::whileconds);
1691: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1692: my $line = pop(@Apache::structuretags::whileline);
1693: my $return = &Apache::run::run($code,$safeeval);
1694: my $starttime=time;
1695: my $error=0;
1696: while ($return) {
1697: if (time-$starttime >
1698: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1699: $return = 0; $error=1; next;
1.161 albertel 1700: }
1701: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1702: if ($target eq 'grade' || $target eq 'answer' ||
1703: $target eq 'analyze') {
1704: # grade/answer/analyze should produce no output but if we
1705: # are redirecting, the redirecter should know what to do
1706: # with the output
1707: if (!$Apache::lonxml::redirection) { undef($result); }
1708: }
1.161 albertel 1709: $return = &Apache::run::run($code,$safeeval);
1710: }
1711: if ($error) {
1.430 bisitz 1712: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1713: }
1714: } elsif ($target eq "edit") {
1715: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1716: }
1.160 albertel 1717: return $result;
1.1 albertel 1718: }
1.6 tsai 1719:
1.160 albertel 1720: # <randomlist show="1">
1.6 tsai 1721: # <tag1>..</tag1>
1722: # <tag2>..</tag2>
1723: # <tag3>..</tag3>
1.160 albertel 1724: # ...
1.6 tsai 1725: # </randomlist>
1726: sub start_randomlist {
1.326 albertel 1727: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1728: my $result;
1.339 albertel 1729: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1730: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1731: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1732: my $b_parser= HTML::LCParser->new(\$body);
1733: $b_parser->xml_mode(1);
1734: $b_parser->marked_sections(1);
1.159 albertel 1735: my $b_tok;
1736: my @randomlist;
1737: my $list_item;
1738: while($b_tok = $b_parser->get_token() ) {
1739: if($b_tok->[0] eq 'S') { # start tag
1740: # get content of the tag until matching end tag
1741: # get all text upto the matching tag
1742: # and push the content into @randomlist
1743: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1744: $b_parser);
1745: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1746: push(@randomlist,$list_item);
1747: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1748: # $list_item</b>";
1749: }
1750: if($b_tok->[0] eq 'T') { # text
1751: # what to do with text in between tags?
1752: # print "<b>TEXT $b_tok->[1]</b><br />";
1753: }
1754: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1755: # print "<b>END-TAG $b_tok->[1]</b><br />";
1756: # }
1757: }
1.303 albertel 1758: if (@randomlist) {
1759: my @idx_arr = (0 .. $#randomlist);
1760: &Apache::structuretags::shuffle(\@idx_arr);
1761: my $bodytext = '';
1762: my $show=$#randomlist;
1763: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1764: $showarg--;
1765: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1766: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1767: my @currlist;
1768: my $part = $Apache::inputtags::part;
1769: if ($part ne '') {
1770: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1771: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1772: if (!(grep(/^\Q$part\E$/,@currlist))) {
1773: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1774: }
1775: } else {
1776: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1777: }
1778: }
1779: }
1.303 albertel 1780: for(0 .. $show) {
1781: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1782: }
1783: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1784: }
1785: } elsif ($target eq 'edit' ) {
1786: $result .=&Apache::edit::tag_start($target,$token);
1787: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1788: $token,5);
1789: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1790: } elsif ($target eq 'modified' ) {
1791: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1792: $safeeval,'show');
1793: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1794: }
1795: return $result;
1.7 tsai 1796: }
1797:
1798: sub shuffle {
1799: my $a=shift;
1800: my $i;
1.303 albertel 1801: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1802: &Apache::response::pushrandomnumber();
1.159 albertel 1803: for($i=@$a;--$i;) {
1804: my $j=int(&Math::Random::random_uniform() * ($i+1));
1805: next if $i == $j;
1806: @$a[$i,$j] = @$a[$j,$i];
1807: }
1.251 albertel 1808: &Apache::response::poprandomnumber();
1.7 tsai 1809: }
1.6 tsai 1810: }
1811:
1812: sub end_randomlist {
1.159 albertel 1813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1814: my $result;
1815: if ($target eq 'edit' ) {
1816: $result=&Apache::edit::tag_end($target,$token,
1817: 'End Randomly Parsed Block');
1818: }
1819: return $result;
1.6 tsai 1820: }
1821:
1.283 albertel 1822: sub ordered_show_check {
1823: my $last_part=$Apache::inputtags::partlist[-2];
1824: my $in_order=
1825: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1826: my $in_order_show=1;
1827: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1828: $in_order_show=&Apache::response::check_status($last_part);
1829: }
1830: return $in_order_show;
1831: }
1832:
1.469 www 1833:
1834: sub start_startpartmarker {
1835: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1836: my $result='';
1837: if ($target eq 'edit') {
1838: $result=&Apache::edit::tag_start($target,$token);
1839: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1840: $result.=&Apache::edit::end_table();
1841:
1842: }
1843: return $result;
1844: }
1845:
1846: sub end_startpartmarker {
1847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1848: my @result;
1849: if ($target eq 'edit') { $result[1]='no'; }
1850: return @result;
1851: }
1852:
1853: sub start_endpartmarker {
1854: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1855: my $result='';
1856: if ($target eq 'edit') {
1857: $result=&Apache::edit::tag_start($target,$token);
1858: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1859: $result.=&Apache::edit::end_table();
1860:
1861: }
1862: return $result;
1863: }
1864:
1865: sub end_endpartmarker {
1866: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1867: my @result;
1868: if ($target eq 'edit') { $result[1]='no'; }
1869: return @result;
1870: }
1871:
1872:
1873:
1874:
1875:
1.11 albertel 1876: sub start_part {
1.326 albertel 1877: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1878: if (!$Apache::lonxml::metamode) {
1879: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1880: # duedates.
1881: }
1.159 albertel 1882: my $result='';
1.386 albertel 1883: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1884: $Apache::inputtags::part=$id;
1.177 albertel 1885: push(@Apache::inputtags::partlist,$id);
1886: @Apache::inputtags::response=();
1.159 albertel 1887: @Apache::inputtags::previous=();
1888: @Apache::inputtags::previous_version=();
1.405 albertel 1889: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1890: &Apache::response::reset_params();
1891:
1.159 albertel 1892: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1893: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1894: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1895: my $in_order_show=&ordered_show_check();
1.214 albertel 1896: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1897: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1898: &Apache::run::run($expression,$safeeval);
1.159 albertel 1899:
1900: if ($target eq 'meta') {
1.224 www 1901: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1902: return &Apache::response::mandatory_part_meta.
1903: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1904: } elsif ($target eq 'web' || $target eq 'grade' ||
1905: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1906: if ($hidden || !$in_order_show) {
1.326 albertel 1907: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1908: } else {
1909: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1910: push (@Apache::inputtags::status,$status);
1911: my $expression='$external::datestatus="'.$status.'";';
1912: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1913: &Apache::run::run($expression,$safeeval);
1.284 albertel 1914: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1915: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1916: }
1.216 albertel 1917: if (( $status eq 'CLOSED' ) ||
1918: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1919: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1920: ( $status eq 'BANNED') ||
1921: ( $status eq 'UNAVAILABLE') ||
1922: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1923: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1924: $style);
1.159 albertel 1925: if ( $target eq "web" ) {
1.211 albertel 1926: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1927: } elsif ( $target eq 'tex' ) {
1.284 albertel 1928: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1929: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1930: } else {
1.211 albertel 1931: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1932: }
1.159 albertel 1933: }
1934: } else {
1935: if ($target eq 'tex') {
1.284 albertel 1936: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1937: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1938: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1939: } else {
1940: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1941: }
1.195 sakharuk 1942: }
1.159 albertel 1943: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1944: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1945: my @allkeys = split /,/,$allkeys;
1946: my $allow_print_points = 0;
1947: foreach my $partial_key (@allkeys) {
1.230 albertel 1948: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1949: if ($1 ne '0') {$allow_print_points=1;}
1950: }
1951: }
1.275 albertel 1952: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1953: if (defined($maxtries) && $maxtries < 0) {
1954: $allow_print_points=0;
1955: }
1.302 albertel 1956: if (lc($env{'course.'.$env{'request.course.id'}.
1957: '.disableexampointprint'}) eq 'yes') {
1958: $allow_print_points=0;
1959: }
1.463 foxr 1960: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1961: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1962:
1963: }
1.233 www 1964: } elsif ($target eq 'web') {
1.479 ! raeburn 1965: if ($status eq 'CAN_ANSWER') {
! 1966: my $problemstatus = &get_problem_status($Apache::inputtags::part);
! 1967: my $probrandomize = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].type");
! 1968: my $probrandtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::partlist[0].randomizeontries");
! 1969: my $num = scalar(@Apache::inputtags::partlist)-1;
! 1970: if ($probrandomize eq 'randomizetry') {
! 1971: if (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") ne 'randomizetry') {
! 1972: $result .= &randomizetry_part_header($problemstatus,'none',$num);
! 1973: } else {
! 1974: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
! 1975: if ($probrandtries ne $reqtries) {
! 1976: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
! 1977: }
! 1978: }
! 1979: } elsif (&Apache::lonnet::EXT("resource.$Apache::inputtags::part.type") eq 'randomizetry') {
! 1980: my $reqtries = &Apache::lonnet::EXT("resource.$Apache::inputtags::part.randomizeontries");
! 1981: $result .= &randomizetry_part_header($problemstatus,$reqtries,$num);
! 1982: }
! 1983: }
1.475 raeburn 1984: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 1985: }
1986: }
1987: }
1988: } elsif ($target eq 'edit') {
1989: $result.=&Apache::edit::tag_start($target,$token);
1990: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1991: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1992: ' '.
1993: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1994: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1995: } elsif ($target eq 'modified') {
1996: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1997: $safeeval,'id','display');
1.159 albertel 1998: if ($constructtag) {
1.225 albertel 1999: #limiting ids to only letters numbers, and space
1.224 www 2000: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 2001: $result = &Apache::edit::rebuild_tag($token);
2002: }
2003: }
2004: return $result;
1.11 albertel 2005: }
2006:
2007: sub end_part {
1.159 albertel 2008: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2009: &Apache::lonxml::debug("in end_part $target ");
2010: my $status=$Apache::inputtags::status['-1'];
2011: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 2012: my $in_order_show=&ordered_show_check();
1.321 albertel 2013: my $result;
2014: if (!$Apache::lonxml::metamode) {
2015: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 2016: $Apache::lonxml::post_evaluate=0;
1.321 albertel 2017: }
1.312 albertel 2018: if ($target eq 'grade') {
1.249 albertel 2019: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 2020: !$hidden && $in_order_show) {
1.311 foxr 2021: $result.=&Apache::inputtags::grade;
1.249 albertel 2022: } else {
2023: # move any submission data to .hidden
2024: &Apache::inputtags::hidealldata($Apache::inputtags::part);
2025: }
1.283 albertel 2026: } elsif (($target eq 'web' || $target eq 'tex') &&
2027: !$hidden && $in_order_show) {
1.159 albertel 2028: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
2029: $target);
1.212 albertel 2030: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
2031: $gradestatus='';
2032: }
1.311 foxr 2033: $result.=$gradestatus;
1.265 sakharuk 2034: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 2035: } elsif ($target eq 'edit') {
1.311 foxr 2036: $result.=&Apache::edit::end_table();
1.322 albertel 2037: } elsif ($target eq 'modified') {
2038: $result .= $token->[2];
1.159 albertel 2039: }
2040: pop @Apache::inputtags::status;
2041: $Apache::inputtags::part='';
1.295 albertel 2042: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 2043: return $result;
1.11 albertel 2044: }
1.1 albertel 2045:
1.25 albertel 2046: sub start_preduedate {
1.326 albertel 2047: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 2048: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2049: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 2050: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 2051: if (!$Apache::lonhomework::scantronmode &&
2052: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 2053: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
2054: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 2055: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 2056: }
1.24 albertel 2057: }
1.159 albertel 2058: return '';
1.24 albertel 2059: }
2060:
1.25 albertel 2061: sub end_preduedate {
1.159 albertel 2062: return '';
1.24 albertel 2063: }
2064:
1.369 foxr 2065: # In all the modes where <postanswerdate> text is
2066: # displayable, all we do is eat up the text between the start/stop
2067: # tags if the conditions are not right to display it.
1.25 albertel 2068: sub start_postanswerdate {
1.326 albertel 2069: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 2070: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
2071: &Apache::lonnet::allowed('pav',
2072: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 2073: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 2074: $target eq 'tex' ) {
1.300 albertel 2075: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 2076: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
2077: (($target eq 'tex') && !$pav)) {
1.326 albertel 2078: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 2079: }
2080: }
2081: return '';
1.24 albertel 2082: }
2083:
1.25 albertel 2084: sub end_postanswerdate {
1.159 albertel 2085: return '';
1.24 albertel 2086: }
2087:
1.25 albertel 2088: sub start_notsolved {
1.326 albertel 2089: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2090: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 2091: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 2092: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
2093: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 2094: if ($gradestatus =~ /^correct/ &&
2095: &Apache::response::show_answer()) {
1.159 albertel 2096: &Apache::lonxml::debug("skipping");
1.326 albertel 2097: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 2098: }
1.24 albertel 2099: }
1.159 albertel 2100: return '';
1.24 albertel 2101: }
2102:
1.25 albertel 2103: sub end_notsolved {
1.159 albertel 2104: return '';
1.24 albertel 2105: }
2106:
2107: sub start_solved {
1.326 albertel 2108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2109: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2110: $target eq 'tex') {
2111: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 2112: if ($gradestatus !~ /^correct/ ||
2113: !&Apache::response::show_answer()) {
1.326 albertel 2114: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 2115: }
1.24 albertel 2116: }
1.159 albertel 2117: return '';
1.24 albertel 2118: }
2119:
2120: sub end_solved {
1.248 albertel 2121: return '';
2122: }
2123:
2124: sub start_problemtype {
1.326 albertel 2125: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 2126: my $result;
1.339 albertel 2127: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
2128: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 2129: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
2130: if (!defined($mode)) { $mode='show'; }
2131: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
2132: my $found=0;
2133: foreach my $type (split(',',$for)) {
2134: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
2135: }
2136: if ($mode eq 'show' && !$found) {
1.326 albertel 2137: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2138: }
2139: if ($mode eq 'hide' && $found) {
1.326 albertel 2140: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2141: }
2142: } elsif ($target eq 'edit') {
2143: $result .=&Apache::edit::tag_start($target,$token);
2144: $result.=&Apache::edit::select_arg('Mode:','mode',
2145: [['show','Show'],
2146: ['hide','Hide']]
2147: ,$token);
2148: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2149: [ ['exam','Exam/Quiz Problem'],
2150: ['survey','Survey'],
1.465 raeburn 2151: ['surveycred','Survey (with credit)'],
2152: ['anonsurvey','Anonymous Survey'],
2153: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2154: ['problem','Homework Problem'],
1.479 ! raeburn 2155: ['practice','Practice Problem'],
! 2156: ['randomizetry','New Randomization Each Try'] ]
1.248 albertel 2157: ,$token);
2158: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2159: } elsif ($target eq 'modified') {
2160: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2161: $safeeval,'mode','for');
2162: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2163: }
2164: return $result;
2165: }
2166:
2167: sub end_problemtype {
1.159 albertel 2168: return '';
1.24 albertel 2169: }
1.34 albertel 2170:
2171: sub start_startouttext {
1.159 albertel 2172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2173: my @result=(''.'');
2174: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2175:
2176: my $nesting =
2177: &Apache::lonxml::set_state('outtext',
2178: &Apache::lonxml::get_state('outtext')+1);
2179: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2180: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2181: }
1.159 albertel 2182: return (@result);
1.34 albertel 2183: }
1.159 albertel 2184:
1.34 albertel 2185: sub end_startouttext {
1.326 albertel 2186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2187: my $result='';
2188: my $text='';
2189: if ($target eq 'edit') {
1.424 foxr 2190: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2191: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2192: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2193: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2194: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2195: .'</span></td>'
2196: .'<td align="left"><span id="math_'.$areaid.'" />'
2197: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2198: .'<span></td>'
2199: .'<td>'
2200: .&Apache::edit::insertlist($target,$token)
2201: .'</td>'
2202: .'<td align="right" valign="top">' .
2203: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2204: &Apache::edit::end_row().
1.362 albertel 2205: &Apache::edit::start_spanning_row()."\n".
1.255 www 2206: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2207: }
2208: if ($target eq 'modified') {
1.219 albertel 2209: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2210: }
2211: if ($target eq 'tex') {
2212: $result .= '\noindent ';
2213: }
2214: return $result;
1.34 albertel 2215: }
1.159 albertel 2216:
1.34 albertel 2217: sub start_endouttext {
1.159 albertel 2218: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2219: my $result='';
2220: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2221: if ($target eq "modified") {
2222: $result='<endouttext />'.
1.377 albertel 2223: &Apache::edit::handle_insertafter('startouttext');
2224: }
1.404 albertel 2225:
2226: my $nesting =
2227: &Apache::lonxml::set_state('outtext',
2228: &Apache::lonxml::get_state('outtext')-1);
2229: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2230: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2231: &Apache::lonxml::set_state('outtext', 0);
2232: }
1.159 albertel 2233: return $result;
1.34 albertel 2234: }
1.159 albertel 2235:
1.34 albertel 2236: sub end_endouttext {
1.159 albertel 2237: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2238: my @result=('','');
2239: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2240: return (@result);
1.34 albertel 2241: }
1.159 albertel 2242:
1.45 albertel 2243: sub delete_startouttext {
1.326 albertel 2244: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2245: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2246: my $text=$$parser['-1']->get_text("/endouttext");
2247: my $ntoken=$$parser['-1']->get_token();
2248: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2249: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2250: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2251: # they did the last time round
2252: &Apache::lonxml::increasedepth($ntoken);
2253: &Apache::lonxml::decreasedepth($ntoken);
2254: return 1;
1.193 www 2255: }
2256:
2257: sub start_simpleeditbutton {
2258: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2259: my $result='';
1.284 albertel 2260: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2261: ($target eq 'web') &&
1.330 albertel 2262: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2263: my $url=$env{'request.noversionuri'};
1.193 www 2264: $url=~s/\?.*$//;
1.367 albertel 2265: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2266: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2267: # $result='<p class="LC_warning">'
2268: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2269: # .&Apache::loncommon::help_open_topic('Caching')
2270: # .'</p>';
1.451 bisitz 2271: $result.=&Apache::lonhtmlcommon::start_funclist()
2272: .&Apache::lonhtmlcommon::add_item_funclist(
2273: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2274: .&mt('Edit').'</a>')
2275: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2276:
1.193 www 2277: }
2278: return $result;
2279: }
2280:
2281: sub end_simpleeditbutton {
2282: return '';
1.45 albertel 2283: }
1.34 albertel 2284:
1.428 raeburn 2285: sub practice_problem_header {
2286: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2287: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2288: '</span>';
2289: }
2290:
1.479 ! raeburn 2291: sub randomizetry_problem_header {
! 2292: my ($problemstatus,$reqtries) = @_;
! 2293: my ($header,$text);
! 2294: if ($reqtries > 1) {
! 2295: $header = &mt('New Problem Variation After Every [quant,_1,Try,Tries]',$reqtries);
! 2296: if (($problemstatus eq 'no') ||
! 2297: ($problemstatus eq 'no_feedback_ever')) {
! 2298: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
! 2299: } else {
! 2300: $text = &mt('A new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
! 2301: }
! 2302: } else {
! 2303: $header = &mt('New Problem Variation Each Try');
! 2304: if (($problemstatus eq 'no') ||
! 2305: ($problemstatus eq 'no_feedback_ever')) {
! 2306: $text = &mt('A new variation will be generated after each try until the tries limit is reached.');
! 2307:
! 2308: } else {
! 2309: $text = &mt('A new variation will be generated after each try until correct or tries limit is reached.');
! 2310: }
! 2311: }
! 2312: return '<span class="LC_info"><h3>'.$header.'</h3></span>'.
! 2313: '<span class="LC_info">'.$text.'</span><hr />';
! 2314: }
! 2315:
! 2316: sub randomizetry_part_header {
! 2317: my ($problemstatus,$reqtries,$num) = @_;
! 2318: my ($header,$text);
! 2319: if ($reqtries eq 'none') {
! 2320: $header = &mt('No Question Variation');
! 2321: $text = &mt('For this question there will no new variation after a try.');
! 2322: } elsif ($reqtries > 1) {
! 2323: $header = &mt('New Question Variation After Every [quant,_1,Try,Tries]',$reqtries);
! 2324: if (($problemstatus eq 'no') ||
! 2325: ($problemstatus eq 'no_feedback_ever')) {
! 2326: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until the tries limit is reached.',$reqtries);
! 2327: } else {
! 2328: $text = &mt('For this question a new variation will be generated after every [quant,_1,try,tries], until correct or tries limit is reached.',$reqtries);
! 2329: }
! 2330: } else {
! 2331: $header = &mt('New Question Variation For Each Try');
! 2332: if (($problemstatus eq 'no') ||
! 2333: ($problemstatus eq 'no_feedback_ever')) {
! 2334: $text = &mt('For this question a new variation will be generated after each try until the tries limit is reached.');
! 2335: } else {
! 2336: $text = &mt('For this question a new variation will be generated after each try until correct or tries limit is reached.');
! 2337: }
! 2338: }
! 2339: my $output;
! 2340: if ($num > 1) {
! 2341: $output .= '<hr />';
! 2342: }
! 2343: $output .= '<span class="LC_info"><h4>'.$header.'</h4></span>'.
! 2344: '<span class="LC_info">'.$text.'</span><br /><br />';
! 2345: return $output;
! 2346: }
! 2347:
1.1 albertel 2348: 1;
2349: __END__
1.435 jms 2350:
2351: =pod
2352:
2353: =back
2354:
2355: =cut
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