Annotation of loncom/homework/structuretags.pm, revision 1.475
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.475 ! raeburn 4: # $Id: structuretags.pm,v 1.474 2010/08/08 02:00:50 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 $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.474 raeburn 180: $extra_head .= &homework_js().
181: &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
182: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
183: my %textarea_args = (
184: dragmath => 'math',
185: );
186: $extra_head .= &Apache::lonhtmlcommon::htmlareaselectactive(\%textarea_args);
1.425 raeburn 187: }
188:
1.344 albertel 189: my %body_args;
190: if (defined($found{'html'})) {
191: $body_args{'skip_phases'}{'head'}=1;
192: } else {
1.343 albertel 193:
1.345 albertel 194: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 195:
1.379 albertel 196: $extra_head .= &Apache::londefdef::generate_css_links();
197:
1.384 albertel 198: if ($env{'request.state'} eq 'construct') {
1.343 albertel 199: $extra_head.=&Apache::edit::js_change_detection().
200: "<script type=\"text/javascript\">\n".
201: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
202: &Apache::loncommon::browser_and_searcher_javascript().
203: "\n</script>\n";
204: }
1.159 albertel 205: }
1.343 albertel 206:
1.446 bisitz 207: my $pageheader = '';
1.344 albertel 208: if (defined($found{'body'})) {
209: $body_args{'skip_phases'}{'body'}=1;
210: } elsif (!defined($found{'body'})
211: && $env{'request.state'} eq 'construct') {
1.343 albertel 212: if ($target eq 'web' || $target eq 'edit') {
1.450 bisitz 213: # Breadcrumbs for Construction Space
214: &Apache::lonhtmlcommon::clear_breadcrumbs();
215: &Apache::lonhtmlcommon::add_breadcrumb({
216: 'text' => 'Construction Space',
217: 'href' => &Apache::loncommon::authorspace(),
218: });
1.460 droeschl 219: # breadcrumbs (and tools) will be created
220: # in start_page->bodytag->innerregister
221:
1.450 bisitz 222: # FIXME Where are we?
223: # &Apache::lonhtmlcommon::add_breadcrumb({
224: # 'text' => 'Problem Editing', # 'Problem Testing'
225: # 'href' => '',
226: # });
1.460 droeschl 227: $pageheader =&Apache::loncommon::head_subbox(
1.446 bisitz 228: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 229: }
1.272 albertel 230: } elsif (!defined($found{'body'})) {
1.343 albertel 231: my %add_entries;
1.159 albertel 232: my $background=&Apache::lonxml::get_param('background',$parstack,
233: $safeeval);
1.343 albertel 234: if ($background ne '' ) {
235: $add_entries{'background'} = $background;
236: }
1.344 albertel 237:
1.290 albertel 238: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
239: $safeeval);
1.446 bisitz 240: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 241:
1.446 bisitz 242: $body_args{'bgcolor'} = $bgcolor;
243: # $body_args{'no_title'} = 1;
244: $body_args{'force_register'} = 1;
245: $body_args{'add_entries'} = \%add_entries;
1.466 droeschl 246: if ( $env{'request.state'} eq 'construct') {
1.446 bisitz 247: $body_args{'only_body'} = 1;
248: }
1.344 albertel 249: }
1.365 albertel 250: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 251: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
252: \%body_args);
1.446 bisitz 253: $page_start .= $pageheader;
1.462 raeburn 254: if (!defined($found{'body'})
255: && $env{'request.state'} ne 'construct'
256: && ($target eq 'web' || $target eq 'webgrade')) {
257:
258: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
259: if ($symb eq '' && !$publicuser) {
260: $page_start .= '<p class="LC_info">'
261: .&mt('Browsing resource, all submissions are temporary.')
262: .'</p>';
1.457 bisitz 263: }
1.344 albertel 264: }
265:
1.409 albertel 266: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 267: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 268: }
1.344 albertel 269:
1.159 albertel 270: my $form_tag_start;
271: if (!defined($found{'form'})) {
1.337 albertel 272: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.465 raeburn 273: my $uri = &Apache::loncommon::inhibit_menu_check(
1.455 droeschl 274: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.464 raeburn 275: $uri = &HTML::Entities::encode($uri,'<>&"');
1.327 albertel 276: $form_tag_start.=$uri.'" ';
277: if ($target eq 'edit') {
278: $form_tag_start.=&Apache::edit::form_change_detection();
279: }
1.368 albertel 280: $form_tag_start.='>'."\n";
1.355 albertel 281:
282: my $symb=&Apache::lonnet::symbread();
283: if ($symb =~ /\S/) {
284: $symb=
285: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
286: $form_tag_start.=
1.368 albertel 287: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 288: }
1.159 albertel 289: }
1.343 albertel 290: return ($page_start,$form_tag_start);
1.105 albertel 291: }
292:
1.141 matthew 293: #use Time::HiRes();
1.105 albertel 294: sub get_resource_name {
1.159 albertel 295: my ($parstack,$safeeval)=@_;
1.388 foxr 296: my $name;
1.204 albertel 297: if (defined($Apache::lonhomework::name)) {
1.388 foxr 298: $name = $Apache::lonhomework::name;
299: } else {
300: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 301: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 302: if ($name eq '') {
303: $name=&Apache::lonnet::EXT('resource.title');
304: if ($name eq 'con_lost') { $name = ''; }
305: }
306: if ($name!~/\S+/) {
307: $name=$env{'request.uri'};
308: $name=~s-.*/([^/]+)$-$1-;
309: }
310: # The name has had html tags escaped:
311:
312: $name=~s/</</gs;
313: $name=~s/>/>/gs;
314:
315: $Apache::lonhomework::name=$name;
1.204 albertel 316: }
1.159 albertel 317: return $name;
1.105 albertel 318: }
319:
320: sub setup_rndseed {
1.159 albertel 321: my ($safeeval)=@_;
322: my $rndseed;
1.367 albertel 323: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 324: if ($env{'request.state'} eq "construct"
325: || $symb eq ''
326: || $Apache::lonhomework::type eq 'practice'
327: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 328: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 329: ['rndseed']);
1.284 albertel 330: $rndseed=$env{'form.rndseed'};
1.159 albertel 331: if (!$rndseed) {
1.162 albertel 332: $rndseed=$Apache::lonhomework::history{'rndseed'};
333: if (!$rndseed) {
334: $rndseed=time;
335: }
1.284 albertel 336: $env{'form.rndseed'}=$rndseed;
1.162 albertel 337: }
1.374 albertel 338: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
339: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 340: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 341: srand(time);
342: $rndseed=int(rand(2100000000));
1.284 albertel 343: $env{'form.rndseed'}=$rndseed;
344: delete($env{'form.resetdata'});
345: delete($env{'form.newrandomization'});
1.159 albertel 346: }
1.187 albertel 347: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 348: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 349: }
1.247 albertel 350: if ($Apache::lonhomework::history{'resource.CODE'}) {
351: $rndseed=&Apache::lonnet::rndseed();
352: }
1.221 albertel 353: if ($safeeval) {
354: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 355: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 356: }
1.159 albertel 357: }
358: return $rndseed;
1.105 albertel 359: }
360:
1.268 albertel 361: sub remember_problem_state {
362: return '
1.284 albertel 363: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
364: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
365: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 366: }
367:
1.423 www 368: sub problem_edit_buttons {
369: return '
1.408 albertel 370: <div class="LC_edit_problem_discards">
1.416 raeburn 371: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 372: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 373: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 374: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 375: </div>
376: <div class="LC_edit_problem_saves">
1.416 raeburn 377: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
378: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 379: </div>';
380: }
381:
382: sub problem_edit_header {
383: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
384: &Apache::structuretags::remember_problem_state().'
385: <div class="LC_edit_problem_header">
386: <div class="LC_edit_problem_header_title">
387: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
388: </div>'.
389: &problem_edit_buttons().'
1.459 bisitz 390: <hr style="clear:both;" />
1.409 albertel 391: '.&Apache::lonxml::message_location().'
1.408 albertel 392: </div>
393: '.
1.458 bisitz 394: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 395: }
396:
397: sub problem_edit_footer {
1.412 albertel 398: return '</td></tr></table><br />
399: <div class="LC_edit_problem_footer">
1.453 bisitz 400: <hr />'.
1.423 www 401: &problem_edit_buttons().'
1.459 bisitz 402: <hr style="clear:both;" />
1.412 albertel 403: </div>
404: '.
1.342 albertel 405: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 406: }
407:
1.235 albertel 408: sub option {
409: my ($value,$name) = @_;
410: my $result ="<option value='".$value."' ";
1.284 albertel 411: if ($env{'form.'.$name} eq $value) {
1.235 albertel 412: $result.=" selected='on' ";
413: }
414: $result.='>';
415: return $result;
416: }
417:
1.105 albertel 418: sub problem_web_to_edit_header {
1.159 albertel 419: my ($rndseed)=@_;
1.406 albertel 420: my $result .= '<div class="LC_edit_problem_header">';
421:
422: if (!$Apache::lonhomework::parsing_a_task) {
423: $result .=
424: '<div class="LC_edit_problem_header_title">'.
425: &mt('Problem Testing').
426: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
427: '</div>';
428: } else {
429: $result .=
430: '<div class="LC_edit_problem_header_title">'.
431: &mt('Task Testing').
432: '</div>';
433: }
434:
1.315 albertel 435: my $show_all_foils_text =
436: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 437: &mt('Show All Instances')
438: : &mt('Show All Foils');
1.315 albertel 439:
1.452 bisitz 440: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
441: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 442: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 443: $show_all.= ' /> '.$show_all_foils_text
444: .'</label></span>';
1.406 albertel 445:
446:
1.384 albertel 447:
1.406 albertel 448: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 449: if (!$Apache::lonhomework::parsing_a_task) {
450: $result.="
1.406 albertel 451: <div class='LC_edit_problem_header_row1'>
452: <span class=\"LC_nobreak\">
1.405 albertel 453: ".&mt("Problem Status:")."
1.235 albertel 454: <select name='problemstate'>
1.270 albertel 455: <option value=''></option>
1.235 albertel 456: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
457: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
458: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
459: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
460: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
461: </select>
1.406 albertel 462: </span>
463: <span class=\"LC_nobreak\">
1.405 albertel 464: ".&mt("Problem Type:")."
1.235 albertel 465: <select name='problemtype'>
1.270 albertel 466: <option value=''></option>
1.242 albertel 467: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 468: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 469: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.465 raeburn 470: ".&option('surveycred' ,'problemtype').&mt("Survey Question (with credit)")."</option>
471: ".&option('anonsurvey' ,'problemtype').&mt("Anonymous Survey Question")."</option>
472: ".&option('anonsurveycred' ,'problemtype').&mt("Anonymous Survey Question (with credit)")."</option>
1.428 raeburn 473: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 474: </select>
1.406 albertel 475: </span>
476: $show_all
477: </div>
478: <div class='LC_edit_problem_header_row2'>
479: <span class=\"LC_nobreak\">
1.405 albertel 480: ".&mt("Feedback Mode:")."
1.235 albertel 481: <select name='problemstatus'>
482: <option value=''></option>
1.242 albertel 483: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 484: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
485: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 486: </select>
1.406 albertel 487: </span>
488: ";
489:
1.376 albertel 490: } elsif ($Apache::lonhomework::parsing_a_task) {
491: $result.="
1.406 albertel 492: <div class='LC_edit_problem_header_row1'>
493: <span class=\"LC_nobreak\">
1.405 albertel 494: ".&mt("Problem Status:")."
1.376 albertel 495: <select name='problemstate'>
496: <option value=''></option>
497: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
498: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
499: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
500: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
501: </select>
1.406 albertel 502: </span>
503: $show_all
504: ";
505: }
506: $result.='
507: <span class="LC_nobreak">
508: '.&mt('Apply style file: ').'
509: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
510: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
511: </span>
1.422 www 512: </div>
513: <div class="LC_edit_problem_header_row1">'.
514: &Apache::lonxml::renderingoptions().'
1.406 albertel 515: </div>
516: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
517: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
518: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
519: </div>
1.453 bisitz 520: <hr />
1.406 albertel 521: <div class="LC_edit_problem_header_randomize_row">
522: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
523: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
524: <input type="text" name="rndseed" size="10" value="'.
525: $rndseed.'"
526: onchange="javascript:document.lonhomework.changerandseed.click()" />';
527:
528: if (!$Apache::lonhomework::parsing_a_task) {
529: my $numtoanalyze=$env{'form.numtoanalyze'};
530: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 531: $result .= '<span class="LC_nobreak">'.
532: &mt('[_1] for [_2] versions.',
1.416 raeburn 533: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 534: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
535: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 536: $numtoanalyze.'" size="5" />').
537: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
538: '</span>';
539:
1.313 albertel 540: }
1.406 albertel 541:
542: $result.='
543: </div>
1.453 bisitz 544: <hr />
1.447 bisitz 545: <div>';
1.416 raeburn 546: $result.='<input type="hidden" name="problemmode" value="view" />';
547: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
548: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
549: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
550: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 551: $result.='
552: </div>
1.453 bisitz 553: <hr />
1.409 albertel 554: '.&Apache::lonxml::message_location().'
1.406 albertel 555: </div>';
1.159 albertel 556: return $result;
1.48 albertel 557: }
558:
1.65 albertel 559: sub initialize_storage {
1.357 albertel 560: my ($given_symb) = @_;
1.353 albertel 561: undef(%Apache::lonhomework::results);
562: undef(%Apache::lonhomework::history);
1.357 albertel 563: my ($symb,$courseid,$domain,$name) =
1.367 albertel 564: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 565:
566: # anonymous users (CODEd exams) have no data
567: if ($name eq 'anonymous'
568: && !defined($domain)) {
569: return;
570: }
571:
1.333 albertel 572: if ($env{'request.state'} eq 'construct'
573: || $symb eq ''
574: || $Apache::lonhomework::type eq 'practice') {
575:
576: my $namespace = $symb || $env{'request.uri'};
577: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 578: ($env{'form.resetdata'} eq &mt('New Problem Variation')
579: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 580: $env{'form.newrandomization'} eq &mt('New Randomization')) {
581: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
582: &Apache::lonxml::debug("Attempt reset");
583: }
1.159 albertel 584: %Apache::lonhomework::history=
1.333 albertel 585: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 586: my ($temp)=keys %Apache::lonhomework::history ;
587: &Apache::lonxml::debug("Return message of $temp");
588: } else {
589: %Apache::lonhomework::history=
590: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
591: }
1.353 albertel 592:
1.159 albertel 593: #ignore error conditions
1.67 albertel 594: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 595: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 596: }
597:
1.435 jms 598: =pod
599:
600: =item finalize_storage()
601:
602: Stores away the result has to a student's environment
603: checks form.grade_ for specific values, other wises stores
604: to the running users environment
605: Will increment totals for attempts, students, and corrects
606: if running user has student role.
607:
608: =cut
609:
610:
1.65 albertel 611: sub finalize_storage {
1.357 albertel 612: my ($given_symb) = @_;
1.159 albertel 613: my $result;
1.289 albertel 614: if (%Apache::lonhomework::results) {
1.323 albertel 615: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
616: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 617: my ($symb,$courseid,$domain,$name) =
1.367 albertel 618: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 619: if ($env{'request.state'} eq 'construct'
620: || $symb eq ''
621: || $Apache::lonhomework::type eq 'practice') {
622: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 623: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 624: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 625: $namespace,'',$domain,$name);
1.159 albertel 626: &Apache::lonxml::debug('Construct Store return message:'.$result);
627: } else {
628: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
629: $symb,$courseid,$domain,$name);
630: &Apache::lonxml::debug('Store return message:'.$result);
1.470 raeburn 631: &store_aggregates($symb,$courseid);
1.159 albertel 632: }
1.323 albertel 633: } else {
634: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 635: }
1.159 albertel 636: return $result;
1.65 albertel 637: }
638:
1.435 jms 639: =pod
640:
641: item store_aggregates()
642:
643: Sends hash of values to be incremented in nohist_resourcetracker.db
644: for the course. Increments total number of attempts, unique students
645: and corrects for each part for an instance of a problem, as appropriate.
646:
647: =cut
648:
1.285 raeburn 649: sub store_aggregates {
650: my ($symb,$courseid) = @_;
1.472 raeburn 651: my (%aggregate,%anoncounter);
1.286 albertel 652: my @parts;
1.288 albertel 653: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
654: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 655: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 656: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 657: push(@parts, $1);
1.285 raeburn 658: }
659: }
1.286 albertel 660: foreach my $part (@parts) {
1.470 raeburn 661: if ($env{'request.role'} =~/^st/) {
662: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
663: eq 'APPROX_ANS' ||
664: $Apache::lonhomework::results{'resource.'.$part.'.award'}
665: eq 'EXACT_ANS') {
666: $aggregate{$symb."\0".$part."\0correct"} = 1;
667: }
668: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
669: $aggregate{$symb."\0".$part."\0users"} = 1;
670: } else {
671: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
672: if ($last_reset) {
673: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
674: $aggregate{$symb."\0".$part."\0users"} = 1;
675: }
676: }
677: }
678: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 679: }
1.470 raeburn 680: if (($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurvey') ||
681: ($Apache::lonhomework::results{'resource.'.$part.'.type'} eq 'anonsurveycred')) {
1.472 raeburn 682: $anoncounter{$symb."\0".$part} = 1;
1.470 raeburn 683: my $needsrelease = $Apache::lonnet::needsrelease{'parameter:type:'.$Apache::lonhomework::results{'resource.'.$part.'.type'}};
684: if ($needsrelease) {
685: my $curr_required = $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
686: if ($curr_required eq '') {
1.471 raeburn 687: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 688: } else {
689: my ($currmajor,$currminor) = split(/\./,$curr_required);
690: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
691: if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
1.471 raeburn 692: &Apache::lonnet::update_released_required($needsrelease);
1.470 raeburn 693: }
1.292 raeburn 694: }
695: }
1.285 raeburn 696: }
697: }
1.292 raeburn 698: if (keys (%aggregate) > 0) {
1.289 albertel 699: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 700: $cdomain,$cname);
701: }
1.472 raeburn 702: if (keys(%anoncounter) > 0) {
703: &Apache::lonnet::cinc('nohist_anonsurveys',\%anoncounter,
704: $cdomain,$cname);
705: }
1.292 raeburn 706: }
1.289 albertel 707:
1.65 albertel 708: sub checkout_msg {
1.211 albertel 709: my %lt=&Apache::lonlocal::texthash(
710: 'resource'=>'The resource needs to be checked out',
711: '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.',
712: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
713: 'checkout'=>'Check out Exam for Viewing',
714: 'checkout?'=>'Check out Exam?');
1.352 albertel 715: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 716: return (<<ENDCHECKOUT);
1.211 albertel 717: <h2>$lt{'resource'}</h2>
718: <p>$lt{'id_expln'}</p>
1.449 bisitz 719: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 720: <form name="checkout" method="post" action="$uri">
1.91 albertel 721: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 722: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 723: </form>
724: ENDCHECKOUT
725: }
726:
1.252 albertel 727: sub firstaccess_msg {
1.253 albertel 728: my ($time,$symb)=@_;
1.414 albertel 729: my $result;
730: my @interval=&Apache::lonnet::EXT("resource.0.interval");
731: if ($interval[1] eq 'map') {
732: my ($map)=&Apache::lonnet::decode_symb($symb);
733: my $foldertitle=&Apache::lonnet::gettitle($map);
734:
735: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 736: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
737: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
738: ,$foldertitle,$time)."</h2>";
1.414 albertel 739: } elsif ($interval[1] eq 'course') {
740: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 741: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
742: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
743: ,$course,$time)."</h2>";
1.414 albertel 744: } else {
745: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 746: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
747: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
748: ,$title,$time)."</h2>";
1.414 albertel 749: }
1.352 albertel 750: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 751: my $buttontext = &mt('Show Resource');
752: my $timertext = &mt('Start Timer?');
1.414 albertel 753: $result .= (<<ENDCHECKOUT);
1.444 bisitz 754: <form name="markaccess" method="post" action="$uri">
1.252 albertel 755: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 756: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 757: </form>
758: ENDCHECKOUT
1.414 albertel 759: return $result;
1.252 albertel 760: }
761:
1.204 albertel 762: sub init_problem_globals {
763: my ($type)=@_;
764: #initialize globals
1.308 foxr 765: # For problems, we start out in part 0 (outside a <part> tag).
766: # and part 0 is used to describe the main body of the <problem>
767: #
1.204 albertel 768: if ($type eq 'problem') {
769: $Apache::inputtags::part='0';
770: @Apache::inputtags::partlist=('0');
1.405 albertel 771: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 772: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 773:
1.266 albertel 774: } elsif ($type eq 'library') {
1.204 albertel 775: $Apache::inputtags::part='';
776: @Apache::inputtags::partlist=();
1.405 albertel 777: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 778: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 779:
1.304 albertel 780: } elsif ($type eq 'Task') {
781: $Apache::inputtags::part='0';
782: @Apache::inputtags::partlist=('0');
1.405 albertel 783: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 784: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 785: }
786: @Apache::inputtags::responselist = ();
787: @Apache::inputtags::importlist = ();
788: @Apache::inputtags::previous=();
789: @Apache::inputtags::previous_version=();
790: $Apache::structuretags::printanswer='No';
791: @Apache::structuretags::whileconds=();
792: @Apache::structuretags::whilebody=();
793: @Apache::structuretags::whileline=();
794: $Apache::lonhomework::scantronmode=0;
795: undef($Apache::lonhomework::name);
1.358 albertel 796: undef($Apache::lonhomework::default_type);
797: undef($Apache::lonhomework::type);
1.204 albertel 798: }
799:
800: sub reset_problem_globals {
801: my ($type)=@_;
802: undef(%Apache::lonhomework::history);
803: undef(%Apache::lonhomework::results);
804: undef($Apache::inputtags::part);
1.208 albertel 805: #don't undef this, lonhomework.pm takes care of this, we use this to
806: #detect if we try to do 2 problems in one file
807: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 808: undef($Apache::lonhomework::name);
1.358 albertel 809: undef($Apache::lonhomework::default_type);
810: undef($Apache::lonhomework::type);
811: undef($Apache::lonhomework::scantronmode);
812: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 813: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 814: }
815:
1.241 albertel 816: sub set_problem_state {
1.240 albertel 817: my ($part)=@_;
1.284 albertel 818: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 819: $Apache::lonhomework::history{"resource.$part.solved"}=
820: 'correct_by_student';
821: }
822: }
823:
1.241 albertel 824: sub get_problem_status {
825: my ($part)=@_;
1.267 albertel 826: my $problem_status;
1.284 albertel 827: if ($env{'request.state'} eq 'construct' &&
828: defined($env{'form.problemstatus'})) {
829: $problem_status=$env{'form.problemstatus'};
1.267 albertel 830: } else {
831: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
832: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 833: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 834: }
835: return $problem_status;
836: }
837:
1.9 albertel 838: sub start_problem {
1.326 albertel 839: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 840:
1.311 foxr 841: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 842: if (!$Apache::lonxml::metamode) {
843: &Apache::lonxml::startredirection();
844: }
1.311 foxr 845:
1.308 foxr 846: # Problems don't nest and we don't allow more than one <problem> in
847: # a .problem file.
848: #
1.184 albertel 849: if ( $Apache::inputtags::part ne '' ||
850: $Apache::lonhomework::parsing_a_problem) {
851: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 852: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 853: return '';
854: }
1.184 albertel 855:
856: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 857: &init_problem_globals('problem');
1.166 albertel 858:
1.284 albertel 859: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 860: $Apache::lonhomework::scantronmode=1;
861: }
1.161 albertel 862:
1.159 albertel 863: if ($target ne 'analyze') {
1.415 raeburn 864: my $type = &Apache::lonnet::EXT('resource.0.type');
865: $Apache::lonhomework::type=$type;
1.284 albertel 866: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 867: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 868: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 869: }
1.332 albertel 870: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 871: }
1.164 albertel 872: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 873: my $uri=$env{'request.uri'};
1.159 albertel 874: if ($uri=~/\.(\w+)$/) {
875: $Apache::lonhomework::type=$1;
876: &Apache::lonxml::debug("Using type of $1");
877: } else {
878: $Apache::lonhomework::type='problem';
879: &Apache::lonxml::debug("Using default type, problem, :$uri:");
880: }
1.87 albertel 881: }
1.301 albertel 882: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 883:
1.363 albertel 884: &initialize_storage();
1.389 albertel 885: if ($target ne 'analyze'
886: && $env{'request.state'} eq 'construct') {
887: &set_problem_state('0');
888: }
889:
1.366 albertel 890: if ($target eq 'web') {
891: &Apache::lonxml::debug(" grading history ");
892: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
893: }
1.363 albertel 894:
1.159 albertel 895: #added vars to the scripting enviroment
1.213 albertel 896: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 897: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 898: &Apache::run::run($expression,$safeeval);
1.159 albertel 899: my $status;
900: my $accessmsg;
901:
1.343 albertel 902: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 903: my ($result,$form_tag_start);
1.354 albertel 904: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
905: || $target eq 'edit') {
1.350 albertel 906: ($result,$form_tag_start) =
907: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
908: $name);
909: }
910:
1.284 albertel 911: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 912:
913: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
914: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
915: $target eq 'tex') {
1.284 albertel 916: if ($env{'form.markaccess'}) {
1.414 albertel 917: my @interval=&Apache::lonnet::EXT("resource.0.interval");
918: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 919: }
1.159 albertel 920: #handle rand seed in construction space
921: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 922: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 923: if ($env{'request.state'} ne "construct" &&
924: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 925: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 926: $rndseed.'" />'.
927: '<input type="submit" name="resetdata"
928: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 929: if (exists($env{'form.username'})) {
930: $form_tag_start.=
1.164 albertel 931: '<input type="hidden" name="username"
1.284 albertel 932: value="'.$env{'form.username'}.'" />';
1.334 albertel 933: }
1.462 raeburn 934: if ($env{'request.role.adv'}) {
935: $form_tag_start.= ' <label class="LC_nobreak">'
936: .'<input type="checkbox" name="showallfoils"';
937: if (defined($env{'form.showallfoils'})) {
938: $form_tag_start.=' checked="checked"';
939: }
940: $form_tag_start.= ' /> '
941: .&mt('Show All Foils')
942: .'</label>';
943: }
1.417 www 944: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 945: $form_tag_start.=&practice_problem_header();
1.417 www 946: }
1.462 raeburn 947: $form_tag_start.='<hr />';
1.162 albertel 948: }
1.324 albertel 949:
950: ($status,$accessmsg,my $slot_name,my $slot) =
951: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 952: push (@Apache::inputtags::status,$status);
1.324 albertel 953:
1.159 albertel 954: my $expression='$external::datestatus="'.$status.'";';
955: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
956: &Apache::run::run($expression,$safeeval);
957: &Apache::lonxml::debug("Got $status");
1.324 albertel 958:
1.159 albertel 959: if (( $status eq 'CLOSED' ) ||
960: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 961: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 962: ( $status eq 'BANNED') ||
1.216 albertel 963: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 964: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 965: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 966: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
967: $style);
1.159 albertel 968: if ( $target eq "web" ) {
1.343 albertel 969: my $msg;
1.159 albertel 970: if ($status eq 'UNAVAILABLE') {
1.245 albertel 971: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 972: } elsif ($status eq 'NOT_IN_A_SLOT') {
973: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 974: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 975: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 976: }
1.216 albertel 977: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 978: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 979: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 980: $msg.=&checkout_msg();
1.252 albertel 981: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 982: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 983: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 984: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 985: }
986: $result.=$msg.'<br />';
987: } elsif ($target eq 'tex') {
1.332 albertel 988: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
989: : '\begin{minipage}{\textwidth}';
1.443 foxr 990: $result.='\noindent \vskip 1 mm '.
1.332 albertel 991: $startminipage.'\vskip 0 mm';
1.159 albertel 992: if ($status eq 'UNAVAILABLE') {
1.211 albertel 993: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 994: } else {
1.211 albertel 995: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 996: }
997: }
1.324 albertel 998: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 999: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1000: $style);
1.324 albertel 1001: if ($target eq 'web') {
1.375 albertel 1002: $result .=
1003: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1004: } elsif ($target eq 'grade') {
1005: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1006: 'problem');
1007: }
1.159 albertel 1008: } elsif ($target eq 'web') {
1.360 albertel 1009: if ($status eq 'CAN_ANSWER'
1010: && $slot_name ne ''
1011: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1012: # unproctored slot access, self checkin
1013: &Apache::bridgetask::check_in('problem',undef,undef,
1014: $slot_name);
1015: }
1.368 albertel 1016: $result.="\n $form_tag_start \t".
1.227 albertel 1017: '<input type="hidden" name="submitted" value="yes" />';
1018: # create a page header and exit
1.284 albertel 1019: if ($env{'request.state'} eq "construct") {
1020: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1021: if ($Apache::lonhomework::type eq 'practice') {
1022: $result.= '<input type="submit" name="resetdata" '.
1023: 'value="'.&mt('New Problem Variation').'" />'.
1024: &practice_problem_header().'<hr />';
1025: }
1.227 albertel 1026: }
1027: # if we are viewing someone else preserve that info
1.284 albertel 1028: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1029: foreach my $field ('symb','courseid','domain','username') {
1030: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1031: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1032: }
1033: }
1034: } elsif ($target eq 'tex') {
1.319 foxr 1035: $result .= 'INSERTTEXFRONTMATTERHERE';
1036:
1.99 sakharuk 1037: }
1.159 albertel 1038: } elsif ($target eq 'edit') {
1.343 albertel 1039: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1040: $Apache::lonxml::warnings_error_header=
1041: &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 1042: my $temp=&Apache::edit::insertlist($target,$token);
1043: $result.=$temp;
1044: } elsif ($target eq 'modified') {
1045: $result=$token->[4];
1046: } else {
1047: # page_start returned a starting result, delete it if we don't need it
1048: $result = '';
1.99 sakharuk 1049: }
1.159 albertel 1050: return $result;
1.9 albertel 1051: }
1052:
1053: sub end_problem {
1.159 albertel 1054: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1055: my $result;
1.310 foxr 1056:
1.321 albertel 1057: if (!$Apache::lonxml::metamode) {
1058: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1059: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1060: }
1.319 foxr 1061:
1062: if ($target eq 'tex') {
1.321 albertel 1063: # Figure out the front matter and replace the
1064: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1065: # this in end_problem because whether or not we display due
1066: # dates depends on whether due dates have already been
1067: # displayed in the problem parts.
1068:
1.319 foxr 1069: my $frontmatter = '';
1070: my $startminipage = '';
1071: if (not $env{'form.problem_split'}=~/yes/) {
1072: $startminipage = '\begin{minipage}{\textwidth}';
1073: }
1074: my $id = $Apache::inputtags::part;
1075: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1076: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1077: my @packages = split /,/,$packages;
1078: my $allow_print_points = 0;
1079: foreach my $partial_key (@packages) {
1080: if ($partial_key=~m/^part_0$/) {
1081: $allow_print_points=1;
1082: }
1083: }
1084: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1085: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1086: if (lc($env{'course.'.$env{'request.course.id'}.
1087: '.disableexampointprint'}) eq 'yes') {
1088: $allow_print_points=0;
1089: }
1090: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1091: 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 1092: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1093: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1094:
1095: # Figure out what the due date is and if we need to print
1096: # it in the problem header. We have been logging the
1097: # last due date written to file.
1098:
1099: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1100: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1101: my $duedate_text = &mt('Due date: [_1]'
1102: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1103: my $temp_file;
1104: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1105:
1106: # Figure out what the last printed due date is or set it
1107: # to the epoch if no duedates have been printed.
1108:
1109: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1110: if (-e $filename) {
1111: $temp_file = Apache::File->new($filename);
1112: my @due_file = <$temp_file>;
1113: $due_file_content = $due_file[$#due_file];
1114: chomp $due_file_content;
1115: }
1116:
1117: # We display the due date iff it is not the same as the last
1118: # duedate in problem header ($due_file_content), and
1119: # none of our parts displayed a duedate.
1120: #
1121: my $parts_with_displayduedate;
1122: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1123: $parts_with_displayduedate =
1124: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1125: } else {
1126: $parts_with_displayduedate = 0;
1127: }
1128: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1129: $temp_file = Apache::File->new('>'.$filename);
1130: print $temp_file "$duetime\n";
1131: if (not $env{'request.symb'} =~ m/\.page_/) {
1132: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1133: $frontmatter .= $begin_doc.
1.448 bisitz 1134: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1135: } else {
1136: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1137: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1138: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1139: }
1.319 foxr 1140: }
1141: } else {
1.448 bisitz 1142: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1143: }
1144: } else {
1145: if (not $env{'request.symb'} =~ m/\.page_/) {
1146: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1147: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1148: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1149: }
1.319 foxr 1150: } else {
1.381 albertel 1151: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1152: }
1153: }
1154: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1155: }
1156:
1.159 albertel 1157: my $status=$Apache::inputtags::status['-1'];
1158: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1159: $target eq 'tex') {
1.249 albertel 1160: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1161: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1162: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1163: &Apache::inputtags::grade;
1.324 albertel 1164: } elsif ($status eq 'NEEDS_CHECKIN') {
1165: # no need to grade, and don't want to hide data
1.249 albertel 1166: } else {
1167: # move any submission data to .hidden
1168: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1169: }
1.159 albertel 1170: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1171: $Apache::inputtags::part eq '0' &&
1.252 albertel 1172: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1173: # if part is zero, no <part>s existed, so we need show the current
1174: # grading status
1175: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1176: $result.= $gradestatus;
1177: }
1178: if (
1.284 albertel 1179: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1180: ($target eq 'answer') || ($target eq 'tex')
1181: ) {
1.227 albertel 1182: if ($target ne 'tex' &&
1.284 albertel 1183: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1184: $result.="</form>";
1.159 albertel 1185: }
1186: if ($target eq 'web') {
1.346 albertel 1187: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1188: } elsif ($target eq 'tex') {
1.178 sakharuk 1189: my $endminipage = '';
1.284 albertel 1190: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1191: $endminipage = '\end{minipage}';
1192: }
1.284 albertel 1193: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1194: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1195: } else {
1.262 sakharuk 1196: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1197: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1198: $result .= $endminipage.'\end{document} ';
1199: } else {
1.382 albertel 1200: $result .= $endminipage;
1.262 sakharuk 1201: }
1.159 albertel 1202: }
1203: }
1204: }
1205: if ($target eq 'grade') {
1206: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1207: &finalize_storage();
1208: }
1.284 albertel 1209: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1210: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1211: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1212: # normally we get it from above, but in CSTR
1.172 albertel 1213: # we always show answer mode too.
1.159 albertel 1214: }
1215: } elsif ($target eq 'meta') {
1216: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1217: @Apache::inputtags::response=();
1.159 albertel 1218: $result=&Apache::response::mandatory_part_meta;
1219: }
1.215 albertel 1220: $result.=&Apache::response::meta_part_order();
1.258 albertel 1221: $result.=&Apache::response::meta_response_order();
1.159 albertel 1222: } elsif ($target eq 'edit') {
1223: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1224: $result .= &problem_edit_footer();
1.320 albertel 1225: } elsif ($target eq 'modified') {
1226: $result .= $token->[2];
1.159 albertel 1227: }
1.155 albertel 1228:
1.284 albertel 1229: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1230: &Apache::inputtags::check_for_duplicate_ids();
1231: }
1.204 albertel 1232:
1233: &reset_problem_globals('problem');
1.159 albertel 1234:
1235: return $result;
1.48 albertel 1236: }
1237:
1.108 albertel 1238:
1.48 albertel 1239: sub start_library {
1.159 albertel 1240: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1241: my ($result,$form_tag_start);
1.371 albertel 1242: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1243: &init_problem_globals('library');
1244: $Apache::lonhomework::type='problem';
1245: }
1.159 albertel 1246: if ($target eq 'edit') {
1.343 albertel 1247: ($result,$form_tag_start)=
1248: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1249: 'Edit');
1250: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1251: my $temp=&Apache::edit::insertlist($target,$token);
1252: $result.=$temp;
1253: } elsif ($target eq 'modified') {
1254: $result=$token->[4];
1.340 albertel 1255: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1256: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1257: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1258: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1259: ($result,$form_tag_start)=
1260: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1261: $name);
1.159 albertel 1262: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1263: $result.=" \n $form_tag_start".
1.159 albertel 1264: '<input type="hidden" name="submitted" value="yes" />';
1265: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1266: if ($Apache::lonhomework::type eq 'practice') {
1267: $result.= '<input type="submit" name="resetdata" '.
1268: 'value="'.&mt('New Problem Variation').'" />'.
1269: &practice_problem_header().'<hr />';
1270: }
1.159 albertel 1271: }
1272: return $result;
1.48 albertel 1273: }
1274:
1275: sub end_library {
1.159 albertel 1276: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1277: my $result='';
1278: if ($target eq 'edit') {
1279: $result=&problem_edit_footer();
1.371 albertel 1280: } elsif ($target eq 'web'
1281: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1282: && $env{'request.state'} eq "construct") {
1.349 albertel 1283: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1284: }
1.371 albertel 1285: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1286: &reset_problem_globals('library');
1287: }
1.159 albertel 1288: return $result;
1.197 www 1289: }
1290:
1291: sub start_definetag {
1.326 albertel 1292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1293:
1294: my $result;
1295:
1296: my $name = $token->[2]->{'name'};
1.326 albertel 1297: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1298: if ($target eq 'web') {
1299: if ($name=~/^\//) {
1300: $result=
1301: '<br /><table class="LC_sty_end"><tr><th>'.
1302: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1303: } else {
1304: $result=
1305: '<br /><table class="LC_sty_begin"><tr><th>'.
1306: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1307: }
1308: $skip = &HTML::Entities::encode($skip, '<>&"');
1309: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1310: }
1311: return $result;
1312: }
1313:
1314: sub end_definetag {
1315: return '';
1.1 albertel 1316: }
1317:
1318: sub start_block {
1.201 albertel 1319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1320:
1321: my $result;
1.1 albertel 1322:
1.339 albertel 1323: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1324: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1325: my $code = $token->[2]->{'condition'};
1.385 albertel 1326: if (defined($code) && $code ne '') {
1.137 albertel 1327: if (!$Apache::lonxml::default_homework_loaded) {
1328: &Apache::lonxml::default_homework_load($safeeval);
1329: }
1.131 albertel 1330: $result = &Apache::run::run($code,$safeeval);
1331: &Apache::lonxml::debug("block :$code: returned :$result:");
1332: } else {
1333: $result='1';
1334: }
1335: if ( ! $result ) {
1.201 albertel 1336: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1337: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1338: }
1339: $result='';
1340: } elsif ($target eq 'edit') {
1341: $result .=&Apache::edit::tag_start($target,$token);
1342: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1343: $token,40);
1344: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1345: } elsif ($target eq 'modified') {
1346: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1347: $safeeval,'condition');
1348: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1349: }
1.131 albertel 1350: return $result;
1.1 albertel 1351: }
1352:
1353: sub end_block {
1.167 www 1354: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1355: my $result;
1356: if ($target eq "edit") {
1357: $result.= &Apache::edit::tag_end($target,$token,'');
1358: }
1359: return $result;
1360: }
1361:
1362: sub start_languageblock {
1.201 albertel 1363: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1364:
1365: my $result;
1366:
1.339 albertel 1367: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1368: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1369: my $include = $token->[2]->{'include'};
1370: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1371: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1372: # This should not even happen, since we should at least have the server language
1.398 www 1373: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1374: # Now loop over all languages in order of preference
1375: foreach my $preferred_language (@preferred_languages) {
1.394 www 1376: # If the languageblock has no arguments, show the contents
1.399 www 1377: $result=1;
1378: my $found=0;
1.394 www 1379: # Do we have an include argument?
1.398 www 1380: if ($include) {
1.394 www 1381: # If include is specified, by default, don't render the block
1.399 www 1382: $result=0;
1.398 www 1383: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1384: # ... but if my preferred language is included, render it
1.398 www 1385: if ($included_language eq $preferred_language) {
1.399 www 1386: $result=1;
1387: $found=1;
1.398 www 1388: }
1389: }
1390: }
1.394 www 1391: # Do we have an exclude argument?
1.398 www 1392: if ($exclude) {
1.399 www 1393: $result=1;
1.398 www 1394: foreach my $excluded_language (split(/\,/,$exclude)) {
1395: if ($excluded_language eq $preferred_language) {
1.399 www 1396: $result=0;
1397: $found=1;
1.398 www 1398: }
1399: }
1400: }
1.399 www 1401: if ($found) { last; }
1.398 www 1402: }
1.201 albertel 1403: if ( ! $result ) {
1404: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1405: $style);
1406: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1407: }
1408: $result='';
1.167 www 1409: } elsif ($target eq 'edit') {
1410: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1411: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1412: $token,40);
1.211 albertel 1413: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1414: $token,40);
1415: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1416: } elsif ($target eq 'modified') {
1417: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1418: $safeeval,'include',
1419: 'exclude');
1.167 www 1420: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1421: }
1422: return $result;
1423: }
1424:
1425: sub end_languageblock {
1.170 www 1426: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1427: my $result;
1.201 albertel 1428: if ($target eq "edit") {
1.170 www 1429: $result.= &Apache::edit::tag_end($target,$token,'');
1430: }
1431: return $result;
1432: }
1433:
1.397 albertel 1434: {
1435: my %available_texts;
1436: sub start_translated {
1437: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1438: &Apache::lonxml::register('Apache::structuretags',('lang'));
1439: undef(%available_texts);
1440: }
1441:
1442: sub end_translated {
1443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1444: my $result;
1445: #show the translation on viewable targets
1446: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1447: # or non-viewable targets, if it's embedded in something that
1448: # wants the output
1449: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1450: && &Apache::lonxml::in_redirection() ) ) {
1451: my @possibilities = keys(%available_texts);
1452: my $which =
1453: &Apache::loncommon::languages(\@possibilities) || 'default';
1454: $result = $available_texts{$which};
1455: }
1456: undef(%available_texts);
1457: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1458: return $result;
1459: }
1460:
1461:
1462: sub start_lang {
1463: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1464: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1465: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1466: &Apache::lonxml::startredirection();
1467: }
1468: return '';
1469: }
1470:
1471: sub end_lang {
1472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1473: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1474: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1475: my $result = &Apache::lonxml::endredirection();
1476: my $which = &Apache::lonxml::get_param('which',$parstack,
1477: $safeeval);
1.431 raeburn 1478: if ($which=~/\w/) {
1479: $available_texts{$which} = $result;
1480: }
1481: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1482: $safeeval);
1483: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1484: if ($language=~/\w/) {
1485: $available_texts{$language} = $result;
1486: }
1.427 bisitz 1487: }
1488:
1.397 albertel 1489: }
1490: return '';
1491: }
1492: }
1493:
1.170 www 1494: sub start_instructorcomment {
1.201 albertel 1495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1496:
1497: my $result;
1498:
1.339 albertel 1499: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1500: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1501: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1502: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1503: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1504: $parser,$style);
1.170 www 1505: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1506: }
1507: $result='';
1508: } elsif ($target eq 'edit') {
1509: $result .=&Apache::edit::tag_start($target,$token);
1510: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1511: }
1512: return $result;
1513: }
1514:
1515: sub end_instructorcomment {
1.159 albertel 1516: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1517: my $result;
1518: if ($target eq "edit") {
1519: $result.= &Apache::edit::tag_end($target,$token,'');
1520: }
1521: return $result;
1.4 tsai 1522: }
1523:
1524: sub start_while {
1.326 albertel 1525: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1526:
1.160 albertel 1527: my $result;
1.339 albertel 1528: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1529: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1530: my $code = $token->[2]->{'condition'};
1.4 tsai 1531:
1.160 albertel 1532: push( @Apache::structuretags::whileconds, $code);
1533: if (!$Apache::lonxml::default_homework_loaded) {
1534: &Apache::lonxml::default_homework_load($safeeval);
1535: }
1536: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1537: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1538: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1539: push( @Apache::structuretags::whileline, $token->[5]);
1540: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1541: if ( $result ) {
1542: &Apache::lonxml::newparser($parser,\$bodytext);
1543: }
1544: } elsif ($target eq 'edit') {
1545: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1546: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1547: $token,40);
1548: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1549: } elsif ($target eq 'modified') {
1550: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1551: $safeeval,'condition');
1552: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1553: }
1.160 albertel 1554: return $result;
1.4 tsai 1555: }
1556:
1557: sub end_while {
1.159 albertel 1558: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1559: my $result;
1560:
1.339 albertel 1561: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1562: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1563: my $code = pop(@Apache::structuretags::whileconds);
1564: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1565: my $line = pop(@Apache::structuretags::whileline);
1566: my $return = &Apache::run::run($code,$safeeval);
1567: my $starttime=time;
1568: my $error=0;
1569: while ($return) {
1570: if (time-$starttime >
1571: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1572: $return = 0; $error=1; next;
1.161 albertel 1573: }
1574: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1575: if ($target eq 'grade' || $target eq 'answer' ||
1576: $target eq 'analyze') {
1577: # grade/answer/analyze should produce no output but if we
1578: # are redirecting, the redirecter should know what to do
1579: # with the output
1580: if (!$Apache::lonxml::redirection) { undef($result); }
1581: }
1.161 albertel 1582: $return = &Apache::run::run($code,$safeeval);
1583: }
1584: if ($error) {
1.430 bisitz 1585: &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 1586: }
1587: } elsif ($target eq "edit") {
1588: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1589: }
1.160 albertel 1590: return $result;
1.1 albertel 1591: }
1.6 tsai 1592:
1.160 albertel 1593: # <randomlist show="1">
1.6 tsai 1594: # <tag1>..</tag1>
1595: # <tag2>..</tag2>
1596: # <tag3>..</tag3>
1.160 albertel 1597: # ...
1.6 tsai 1598: # </randomlist>
1599: sub start_randomlist {
1.326 albertel 1600: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1601: my $result;
1.339 albertel 1602: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1603: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1604: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1605: my $b_parser= HTML::LCParser->new(\$body);
1606: $b_parser->xml_mode(1);
1607: $b_parser->marked_sections(1);
1.159 albertel 1608: my $b_tok;
1609: my @randomlist;
1610: my $list_item;
1611: while($b_tok = $b_parser->get_token() ) {
1612: if($b_tok->[0] eq 'S') { # start tag
1613: # get content of the tag until matching end tag
1614: # get all text upto the matching tag
1615: # and push the content into @randomlist
1616: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1617: $b_parser);
1618: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1619: push(@randomlist,$list_item);
1620: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1621: # $list_item</b>";
1622: }
1623: if($b_tok->[0] eq 'T') { # text
1624: # what to do with text in between tags?
1625: # print "<b>TEXT $b_tok->[1]</b><br />";
1626: }
1627: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1628: # print "<b>END-TAG $b_tok->[1]</b><br />";
1629: # }
1630: }
1.303 albertel 1631: if (@randomlist) {
1632: my @idx_arr = (0 .. $#randomlist);
1633: &Apache::structuretags::shuffle(\@idx_arr);
1634: my $bodytext = '';
1635: my $show=$#randomlist;
1636: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1637: $showarg--;
1638: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1639: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1640: my @currlist;
1641: my $part = $Apache::inputtags::part;
1642: if ($part ne '') {
1643: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1644: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1645: if (!(grep(/^\Q$part\E$/,@currlist))) {
1646: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1647: }
1648: } else {
1649: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1650: }
1651: }
1652: }
1.303 albertel 1653: for(0 .. $show) {
1654: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1655: }
1656: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1657: }
1658: } elsif ($target eq 'edit' ) {
1659: $result .=&Apache::edit::tag_start($target,$token);
1660: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1661: $token,5);
1662: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1663: } elsif ($target eq 'modified' ) {
1664: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1665: $safeeval,'show');
1666: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1667: }
1668: return $result;
1.7 tsai 1669: }
1670:
1671: sub shuffle {
1672: my $a=shift;
1673: my $i;
1.303 albertel 1674: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1675: &Apache::response::pushrandomnumber();
1.159 albertel 1676: for($i=@$a;--$i;) {
1677: my $j=int(&Math::Random::random_uniform() * ($i+1));
1678: next if $i == $j;
1679: @$a[$i,$j] = @$a[$j,$i];
1680: }
1.251 albertel 1681: &Apache::response::poprandomnumber();
1.7 tsai 1682: }
1.6 tsai 1683: }
1684:
1685: sub end_randomlist {
1.159 albertel 1686: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1687: my $result;
1688: if ($target eq 'edit' ) {
1689: $result=&Apache::edit::tag_end($target,$token,
1690: 'End Randomly Parsed Block');
1691: }
1692: return $result;
1.6 tsai 1693: }
1694:
1.283 albertel 1695: sub ordered_show_check {
1696: my $last_part=$Apache::inputtags::partlist[-2];
1697: my $in_order=
1698: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1699: my $in_order_show=1;
1700: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1701: $in_order_show=&Apache::response::check_status($last_part);
1702: }
1703: return $in_order_show;
1704: }
1705:
1.469 www 1706:
1707: sub start_startpartmarker {
1708: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1709: my $result='';
1710: if ($target eq 'edit') {
1711: $result=&Apache::edit::tag_start($target,$token);
1712: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1713: $result.=&Apache::edit::end_table();
1714:
1715: }
1716: return $result;
1717: }
1718:
1719: sub end_startpartmarker {
1720: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1721: my @result;
1722: if ($target eq 'edit') { $result[1]='no'; }
1723: return @result;
1724: }
1725:
1726: sub start_endpartmarker {
1727: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1728: my $result='';
1729: if ($target eq 'edit') {
1730: $result=&Apache::edit::tag_start($target,$token);
1731: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1732: $result.=&Apache::edit::end_table();
1733:
1734: }
1735: return $result;
1736: }
1737:
1738: sub end_endpartmarker {
1739: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1740: my @result;
1741: if ($target eq 'edit') { $result[1]='no'; }
1742: return @result;
1743: }
1744:
1745:
1746:
1747:
1748:
1.11 albertel 1749: sub start_part {
1.326 albertel 1750: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1751: if (!$Apache::lonxml::metamode) {
1752: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1753: # duedates.
1754: }
1.159 albertel 1755: my $result='';
1.386 albertel 1756: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1757: $Apache::inputtags::part=$id;
1.177 albertel 1758: push(@Apache::inputtags::partlist,$id);
1759: @Apache::inputtags::response=();
1.159 albertel 1760: @Apache::inputtags::previous=();
1761: @Apache::inputtags::previous_version=();
1.405 albertel 1762: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1763: &Apache::response::reset_params();
1764:
1.159 albertel 1765: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1766: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1767: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1768: my $in_order_show=&ordered_show_check();
1.214 albertel 1769: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1770: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1771: &Apache::run::run($expression,$safeeval);
1.159 albertel 1772:
1773: if ($target eq 'meta') {
1.224 www 1774: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1775: return &Apache::response::mandatory_part_meta.
1776: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1777: } elsif ($target eq 'web' || $target eq 'grade' ||
1778: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1779: if ($hidden || !$in_order_show) {
1.326 albertel 1780: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1781: } else {
1782: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1783: push (@Apache::inputtags::status,$status);
1784: my $expression='$external::datestatus="'.$status.'";';
1785: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1786: &Apache::run::run($expression,$safeeval);
1.284 albertel 1787: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1788: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1789: }
1.216 albertel 1790: if (( $status eq 'CLOSED' ) ||
1791: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1792: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1793: ( $status eq 'BANNED') ||
1794: ( $status eq 'UNAVAILABLE') ||
1795: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1796: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1797: $style);
1.159 albertel 1798: if ( $target eq "web" ) {
1.211 albertel 1799: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1800: } elsif ( $target eq 'tex' ) {
1.284 albertel 1801: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1802: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1803: } else {
1.211 albertel 1804: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1805: }
1.159 albertel 1806: }
1807: } else {
1808: if ($target eq 'tex') {
1.284 albertel 1809: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1810: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1811: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1812: } else {
1813: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1814: }
1.195 sakharuk 1815: }
1.159 albertel 1816: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1817: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1818: my @allkeys = split /,/,$allkeys;
1819: my $allow_print_points = 0;
1820: foreach my $partial_key (@allkeys) {
1.230 albertel 1821: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1822: if ($1 ne '0') {$allow_print_points=1;}
1823: }
1824: }
1.275 albertel 1825: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1826: if (defined($maxtries) && $maxtries < 0) {
1827: $allow_print_points=0;
1828: }
1.302 albertel 1829: if (lc($env{'course.'.$env{'request.course.id'}.
1830: '.disableexampointprint'}) eq 'yes') {
1831: $allow_print_points=0;
1832: }
1.463 foxr 1833: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1834: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1835:
1836: }
1.233 www 1837: } elsif ($target eq 'web') {
1.475 ! raeburn 1838: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 1839: }
1840: }
1841: }
1842: } elsif ($target eq 'edit') {
1843: $result.=&Apache::edit::tag_start($target,$token);
1844: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1845: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1846: ' '.
1847: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1848: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1849: } elsif ($target eq 'modified') {
1850: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1851: $safeeval,'id','display');
1.159 albertel 1852: if ($constructtag) {
1.225 albertel 1853: #limiting ids to only letters numbers, and space
1.224 www 1854: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1855: $result = &Apache::edit::rebuild_tag($token);
1856: }
1857: }
1858: return $result;
1.11 albertel 1859: }
1860:
1861: sub end_part {
1.159 albertel 1862: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1863: &Apache::lonxml::debug("in end_part $target ");
1864: my $status=$Apache::inputtags::status['-1'];
1865: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1866: my $in_order_show=&ordered_show_check();
1.321 albertel 1867: my $result;
1868: if (!$Apache::lonxml::metamode) {
1869: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1870: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1871: }
1.312 albertel 1872: if ($target eq 'grade') {
1.249 albertel 1873: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1874: !$hidden && $in_order_show) {
1.311 foxr 1875: $result.=&Apache::inputtags::grade;
1.249 albertel 1876: } else {
1877: # move any submission data to .hidden
1878: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1879: }
1.283 albertel 1880: } elsif (($target eq 'web' || $target eq 'tex') &&
1881: !$hidden && $in_order_show) {
1.159 albertel 1882: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1883: $target);
1.212 albertel 1884: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1885: $gradestatus='';
1886: }
1.311 foxr 1887: $result.=$gradestatus;
1.265 sakharuk 1888: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1889: } elsif ($target eq 'edit') {
1.311 foxr 1890: $result.=&Apache::edit::end_table();
1.322 albertel 1891: } elsif ($target eq 'modified') {
1892: $result .= $token->[2];
1.159 albertel 1893: }
1894: pop @Apache::inputtags::status;
1895: $Apache::inputtags::part='';
1.295 albertel 1896: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1897: return $result;
1.11 albertel 1898: }
1.1 albertel 1899:
1.25 albertel 1900: sub start_preduedate {
1.326 albertel 1901: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1902: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1903: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1904: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1905: if (!$Apache::lonhomework::scantronmode &&
1906: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1907: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1908: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1909: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1910: }
1.24 albertel 1911: }
1.159 albertel 1912: return '';
1.24 albertel 1913: }
1914:
1.25 albertel 1915: sub end_preduedate {
1.159 albertel 1916: return '';
1.24 albertel 1917: }
1918:
1.369 foxr 1919: # In all the modes where <postanswerdate> text is
1920: # displayable, all we do is eat up the text between the start/stop
1921: # tags if the conditions are not right to display it.
1.25 albertel 1922: sub start_postanswerdate {
1.326 albertel 1923: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1924: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1925: &Apache::lonnet::allowed('pav',
1926: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1927: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1928: $target eq 'tex' ) {
1.300 albertel 1929: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1930: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1931: (($target eq 'tex') && !$pav)) {
1.326 albertel 1932: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1933: }
1934: }
1935: return '';
1.24 albertel 1936: }
1937:
1.25 albertel 1938: sub end_postanswerdate {
1.159 albertel 1939: return '';
1.24 albertel 1940: }
1941:
1.25 albertel 1942: sub start_notsolved {
1.326 albertel 1943: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1944: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1945: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1946: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1947: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1948: if ($gradestatus =~ /^correct/ &&
1949: &Apache::response::show_answer()) {
1.159 albertel 1950: &Apache::lonxml::debug("skipping");
1.326 albertel 1951: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1952: }
1.24 albertel 1953: }
1.159 albertel 1954: return '';
1.24 albertel 1955: }
1956:
1.25 albertel 1957: sub end_notsolved {
1.159 albertel 1958: return '';
1.24 albertel 1959: }
1960:
1961: sub start_solved {
1.326 albertel 1962: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1963: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1964: $target eq 'tex') {
1965: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1966: if ($gradestatus !~ /^correct/ ||
1967: !&Apache::response::show_answer()) {
1.326 albertel 1968: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1969: }
1.24 albertel 1970: }
1.159 albertel 1971: return '';
1.24 albertel 1972: }
1973:
1974: sub end_solved {
1.248 albertel 1975: return '';
1976: }
1977:
1978: sub start_problemtype {
1.326 albertel 1979: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1980: my $result;
1.339 albertel 1981: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1982: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1983: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1984: if (!defined($mode)) { $mode='show'; }
1985: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1986: my $found=0;
1987: foreach my $type (split(',',$for)) {
1988: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1989: }
1990: if ($mode eq 'show' && !$found) {
1.326 albertel 1991: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1992: }
1993: if ($mode eq 'hide' && $found) {
1.326 albertel 1994: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1995: }
1996: } elsif ($target eq 'edit') {
1997: $result .=&Apache::edit::tag_start($target,$token);
1998: $result.=&Apache::edit::select_arg('Mode:','mode',
1999: [['show','Show'],
2000: ['hide','Hide']]
2001: ,$token);
2002: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2003: [ ['exam','Exam/Quiz Problem'],
2004: ['survey','Survey'],
1.465 raeburn 2005: ['surveycred','Survey (with credit)'],
2006: ['anonsurvey','Anonymous Survey'],
2007: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2008: ['problem','Homework Problem'],
2009: ['practice','Practice Problem'] ]
1.248 albertel 2010: ,$token);
2011: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2012: } elsif ($target eq 'modified') {
2013: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2014: $safeeval,'mode','for');
2015: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2016: }
2017: return $result;
2018: }
2019:
2020: sub end_problemtype {
1.159 albertel 2021: return '';
1.24 albertel 2022: }
1.34 albertel 2023:
2024: sub start_startouttext {
1.159 albertel 2025: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2026: my @result=(''.'');
2027: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2028:
2029: my $nesting =
2030: &Apache::lonxml::set_state('outtext',
2031: &Apache::lonxml::get_state('outtext')+1);
2032: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2033: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2034: }
1.159 albertel 2035: return (@result);
1.34 albertel 2036: }
1.159 albertel 2037:
1.34 albertel 2038: sub end_startouttext {
1.326 albertel 2039: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2040: my $result='';
2041: my $text='';
2042: if ($target eq 'edit') {
1.424 foxr 2043: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2044: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2045: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2046: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2047: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2048: .'</span></td>'
2049: .'<td align="left"><span id="math_'.$areaid.'" />'
2050: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2051: .'<span></td>'
2052: .'<td>'
2053: .&Apache::edit::insertlist($target,$token)
2054: .'</td>'
2055: .'<td align="right" valign="top">' .
2056: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2057: &Apache::edit::end_row().
1.362 albertel 2058: &Apache::edit::start_spanning_row()."\n".
1.255 www 2059: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2060: }
2061: if ($target eq 'modified') {
1.219 albertel 2062: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2063: }
2064: if ($target eq 'tex') {
2065: $result .= '\noindent ';
2066: }
2067: return $result;
1.34 albertel 2068: }
1.159 albertel 2069:
1.34 albertel 2070: sub start_endouttext {
1.159 albertel 2071: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2072: my $result='';
2073: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2074: if ($target eq "modified") {
2075: $result='<endouttext />'.
1.377 albertel 2076: &Apache::edit::handle_insertafter('startouttext');
2077: }
1.404 albertel 2078:
2079: my $nesting =
2080: &Apache::lonxml::set_state('outtext',
2081: &Apache::lonxml::get_state('outtext')-1);
2082: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2083: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2084: &Apache::lonxml::set_state('outtext', 0);
2085: }
1.159 albertel 2086: return $result;
1.34 albertel 2087: }
1.159 albertel 2088:
1.34 albertel 2089: sub end_endouttext {
1.159 albertel 2090: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2091: my @result=('','');
2092: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2093: return (@result);
1.34 albertel 2094: }
1.159 albertel 2095:
1.45 albertel 2096: sub delete_startouttext {
1.326 albertel 2097: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2098: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2099: my $text=$$parser['-1']->get_text("/endouttext");
2100: my $ntoken=$$parser['-1']->get_token();
2101: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2102: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2103: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2104: # they did the last time round
2105: &Apache::lonxml::increasedepth($ntoken);
2106: &Apache::lonxml::decreasedepth($ntoken);
2107: return 1;
1.193 www 2108: }
2109:
2110: sub start_simpleeditbutton {
2111: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2112: my $result='';
1.284 albertel 2113: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2114: ($target eq 'web') &&
1.330 albertel 2115: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2116: my $url=$env{'request.noversionuri'};
1.193 www 2117: $url=~s/\?.*$//;
1.367 albertel 2118: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2119: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2120: # $result='<p class="LC_warning">'
2121: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2122: # .&Apache::loncommon::help_open_topic('Caching')
2123: # .'</p>';
1.451 bisitz 2124: $result.=&Apache::lonhtmlcommon::start_funclist()
2125: .&Apache::lonhtmlcommon::add_item_funclist(
2126: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2127: .&mt('Edit').'</a>')
2128: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2129:
1.193 www 2130: }
2131: return $result;
2132: }
2133:
2134: sub end_simpleeditbutton {
2135: return '';
1.45 albertel 2136: }
1.34 albertel 2137:
1.428 raeburn 2138: sub practice_problem_header {
2139: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2140: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2141: '</span>';
2142: }
2143:
1.1 albertel 2144: 1;
2145: __END__
1.435 jms 2146:
2147: =pod
2148:
2149: =back
2150:
2151: =cut
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