Annotation of loncom/homework/structuretags.pm, revision 1.477
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.477 ! www 4: # $Id: structuretags.pm,v 1.476 2010/10/04 18:28:53 www 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: }
1.477 ! www 786: @Apache::functionplotresponse::callscripts=();
1.204 albertel 787: @Apache::inputtags::responselist = ();
788: @Apache::inputtags::importlist = ();
789: @Apache::inputtags::previous=();
790: @Apache::inputtags::previous_version=();
791: $Apache::structuretags::printanswer='No';
792: @Apache::structuretags::whileconds=();
793: @Apache::structuretags::whilebody=();
794: @Apache::structuretags::whileline=();
795: $Apache::lonhomework::scantronmode=0;
796: undef($Apache::lonhomework::name);
1.358 albertel 797: undef($Apache::lonhomework::default_type);
798: undef($Apache::lonhomework::type);
1.204 albertel 799: }
800:
801: sub reset_problem_globals {
802: my ($type)=@_;
803: undef(%Apache::lonhomework::history);
804: undef(%Apache::lonhomework::results);
805: undef($Apache::inputtags::part);
1.208 albertel 806: #don't undef this, lonhomework.pm takes care of this, we use this to
807: #detect if we try to do 2 problems in one file
808: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 809: undef($Apache::lonhomework::name);
1.358 albertel 810: undef($Apache::lonhomework::default_type);
811: undef($Apache::lonhomework::type);
812: undef($Apache::lonhomework::scantronmode);
813: undef($Apache::lonhomework::ignore_response_errors);
1.477 ! www 814: undef(@Apache::functionplotresponse::callscripts);
1.405 albertel 815: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 816: }
817:
1.241 albertel 818: sub set_problem_state {
1.240 albertel 819: my ($part)=@_;
1.284 albertel 820: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 821: $Apache::lonhomework::history{"resource.$part.solved"}=
822: 'correct_by_student';
823: }
824: }
825:
1.241 albertel 826: sub get_problem_status {
827: my ($part)=@_;
1.267 albertel 828: my $problem_status;
1.284 albertel 829: if ($env{'request.state'} eq 'construct' &&
830: defined($env{'form.problemstatus'})) {
831: $problem_status=$env{'form.problemstatus'};
1.267 albertel 832: } else {
833: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
834: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 835: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 836: }
837: return $problem_status;
838: }
839:
1.9 albertel 840: sub start_problem {
1.326 albertel 841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 842:
1.311 foxr 843: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 844: if (!$Apache::lonxml::metamode) {
845: &Apache::lonxml::startredirection();
846: }
1.311 foxr 847:
1.308 foxr 848: # Problems don't nest and we don't allow more than one <problem> in
849: # a .problem file.
850: #
1.184 albertel 851: if ( $Apache::inputtags::part ne '' ||
852: $Apache::lonhomework::parsing_a_problem) {
853: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 854: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 855: return '';
856: }
1.184 albertel 857:
858: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 859: &init_problem_globals('problem');
1.166 albertel 860:
1.284 albertel 861: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 862: $Apache::lonhomework::scantronmode=1;
863: }
1.161 albertel 864:
1.159 albertel 865: if ($target ne 'analyze') {
1.415 raeburn 866: my $type = &Apache::lonnet::EXT('resource.0.type');
867: $Apache::lonhomework::type=$type;
1.284 albertel 868: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 869: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 870: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 871: }
1.332 albertel 872: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 873: }
1.164 albertel 874: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 875: my $uri=$env{'request.uri'};
1.159 albertel 876: if ($uri=~/\.(\w+)$/) {
877: $Apache::lonhomework::type=$1;
878: &Apache::lonxml::debug("Using type of $1");
879: } else {
880: $Apache::lonhomework::type='problem';
881: &Apache::lonxml::debug("Using default type, problem, :$uri:");
882: }
1.87 albertel 883: }
1.301 albertel 884: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 885:
1.363 albertel 886: &initialize_storage();
1.389 albertel 887: if ($target ne 'analyze'
888: && $env{'request.state'} eq 'construct') {
889: &set_problem_state('0');
890: }
891:
1.366 albertel 892: if ($target eq 'web') {
893: &Apache::lonxml::debug(" grading history ");
894: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
895: }
1.363 albertel 896:
1.159 albertel 897: #added vars to the scripting enviroment
1.213 albertel 898: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 899: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 900: &Apache::run::run($expression,$safeeval);
1.159 albertel 901: my $status;
902: my $accessmsg;
903:
1.343 albertel 904: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 905: my ($result,$form_tag_start);
1.354 albertel 906: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
907: || $target eq 'edit') {
1.350 albertel 908: ($result,$form_tag_start) =
909: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
910: $name);
911: }
912:
1.284 albertel 913: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 914:
915: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
916: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
917: $target eq 'tex') {
1.284 albertel 918: if ($env{'form.markaccess'}) {
1.414 albertel 919: my @interval=&Apache::lonnet::EXT("resource.0.interval");
920: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 921: }
1.159 albertel 922: #handle rand seed in construction space
923: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 924: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 925: if ($env{'request.state'} ne "construct" &&
926: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 927: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
1.462 raeburn 928: $rndseed.'" />'.
929: '<input type="submit" name="resetdata"
930: value="'.&mt('New Problem Variation').'" />';
1.334 albertel 931: if (exists($env{'form.username'})) {
932: $form_tag_start.=
1.164 albertel 933: '<input type="hidden" name="username"
1.284 albertel 934: value="'.$env{'form.username'}.'" />';
1.334 albertel 935: }
1.462 raeburn 936: if ($env{'request.role.adv'}) {
937: $form_tag_start.= ' <label class="LC_nobreak">'
938: .'<input type="checkbox" name="showallfoils"';
939: if (defined($env{'form.showallfoils'})) {
940: $form_tag_start.=' checked="checked"';
941: }
942: $form_tag_start.= ' /> '
943: .&mt('Show All Foils')
944: .'</label>';
945: }
1.417 www 946: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 947: $form_tag_start.=&practice_problem_header();
1.417 www 948: }
1.462 raeburn 949: $form_tag_start.='<hr />';
1.162 albertel 950: }
1.324 albertel 951:
952: ($status,$accessmsg,my $slot_name,my $slot) =
953: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 954: push (@Apache::inputtags::status,$status);
1.324 albertel 955:
1.159 albertel 956: my $expression='$external::datestatus="'.$status.'";';
957: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
958: &Apache::run::run($expression,$safeeval);
959: &Apache::lonxml::debug("Got $status");
1.324 albertel 960:
1.159 albertel 961: if (( $status eq 'CLOSED' ) ||
962: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 963: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 964: ( $status eq 'BANNED') ||
1.216 albertel 965: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 966: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 967: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 968: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
969: $style);
1.159 albertel 970: if ( $target eq "web" ) {
1.343 albertel 971: my $msg;
1.159 albertel 972: if ($status eq 'UNAVAILABLE') {
1.245 albertel 973: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 974: } elsif ($status eq 'NOT_IN_A_SLOT') {
975: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 976: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 977: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 978: }
1.216 albertel 979: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 980: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 981: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 982: $msg.=&checkout_msg();
1.252 albertel 983: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 984: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 985: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 986: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 987: }
988: $result.=$msg.'<br />';
989: } elsif ($target eq 'tex') {
1.332 albertel 990: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
991: : '\begin{minipage}{\textwidth}';
1.443 foxr 992: $result.='\noindent \vskip 1 mm '.
1.332 albertel 993: $startminipage.'\vskip 0 mm';
1.159 albertel 994: if ($status eq 'UNAVAILABLE') {
1.211 albertel 995: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 996: } else {
1.211 albertel 997: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 998: }
999: }
1.324 albertel 1000: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 1001: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
1002: $style);
1.324 albertel 1003: if ($target eq 'web') {
1.375 albertel 1004: $result .=
1005: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 1006: } elsif ($target eq 'grade') {
1007: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
1008: 'problem');
1009: }
1.159 albertel 1010: } elsif ($target eq 'web') {
1.360 albertel 1011: if ($status eq 'CAN_ANSWER'
1012: && $slot_name ne ''
1013: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1014: # unproctored slot access, self checkin
1015: &Apache::bridgetask::check_in('problem',undef,undef,
1016: $slot_name);
1017: }
1.368 albertel 1018: $result.="\n $form_tag_start \t".
1.227 albertel 1019: '<input type="hidden" name="submitted" value="yes" />';
1020: # create a page header and exit
1.284 albertel 1021: if ($env{'request.state'} eq "construct") {
1022: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1023: if ($Apache::lonhomework::type eq 'practice') {
1024: $result.= '<input type="submit" name="resetdata" '.
1025: 'value="'.&mt('New Problem Variation').'" />'.
1026: &practice_problem_header().'<hr />';
1027: }
1.227 albertel 1028: }
1029: # if we are viewing someone else preserve that info
1.284 albertel 1030: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1031: foreach my $field ('symb','courseid','domain','username') {
1032: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1033: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1034: }
1035: }
1036: } elsif ($target eq 'tex') {
1.319 foxr 1037: $result .= 'INSERTTEXFRONTMATTERHERE';
1038:
1.99 sakharuk 1039: }
1.159 albertel 1040: } elsif ($target eq 'edit') {
1.343 albertel 1041: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1042: $Apache::lonxml::warnings_error_header=
1043: &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 1044: my $temp=&Apache::edit::insertlist($target,$token);
1045: $result.=$temp;
1046: } elsif ($target eq 'modified') {
1047: $result=$token->[4];
1048: } else {
1049: # page_start returned a starting result, delete it if we don't need it
1050: $result = '';
1.99 sakharuk 1051: }
1.159 albertel 1052: return $result;
1.9 albertel 1053: }
1054:
1055: sub end_problem {
1.159 albertel 1056: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1057: my $result;
1.310 foxr 1058:
1.321 albertel 1059: if (!$Apache::lonxml::metamode) {
1060: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1061: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1062: }
1.319 foxr 1063:
1064: if ($target eq 'tex') {
1.321 albertel 1065: # Figure out the front matter and replace the
1066: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1067: # this in end_problem because whether or not we display due
1068: # dates depends on whether due dates have already been
1069: # displayed in the problem parts.
1070:
1.319 foxr 1071: my $frontmatter = '';
1072: my $startminipage = '';
1073: if (not $env{'form.problem_split'}=~/yes/) {
1074: $startminipage = '\begin{minipage}{\textwidth}';
1075: }
1076: my $id = $Apache::inputtags::part;
1077: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1078: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1079: my @packages = split /,/,$packages;
1080: my $allow_print_points = 0;
1081: foreach my $partial_key (@packages) {
1082: if ($partial_key=~m/^part_0$/) {
1083: $allow_print_points=1;
1084: }
1085: }
1086: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1087: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1088: if (lc($env{'course.'.$env{'request.course.id'}.
1089: '.disableexampointprint'}) eq 'yes') {
1090: $allow_print_points=0;
1091: }
1092: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1093: 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 1094: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1095: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1096:
1097: # Figure out what the due date is and if we need to print
1098: # it in the problem header. We have been logging the
1099: # last due date written to file.
1100:
1101: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1102: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1103: my $duedate_text = &mt('Due date: [_1]'
1104: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1105: my $temp_file;
1106: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1107:
1108: # Figure out what the last printed due date is or set it
1109: # to the epoch if no duedates have been printed.
1110:
1111: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1112: if (-e $filename) {
1113: $temp_file = Apache::File->new($filename);
1114: my @due_file = <$temp_file>;
1115: $due_file_content = $due_file[$#due_file];
1116: chomp $due_file_content;
1117: }
1118:
1119: # We display the due date iff it is not the same as the last
1120: # duedate in problem header ($due_file_content), and
1121: # none of our parts displayed a duedate.
1122: #
1123: my $parts_with_displayduedate;
1124: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1125: $parts_with_displayduedate =
1126: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1127: } else {
1128: $parts_with_displayduedate = 0;
1129: }
1130: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1131: $temp_file = Apache::File->new('>'.$filename);
1132: print $temp_file "$duetime\n";
1133: if (not $env{'request.symb'} =~ m/\.page_/) {
1134: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1135: $frontmatter .= $begin_doc.
1.448 bisitz 1136: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1137: } else {
1138: $frontmatter.= $begin_doc.$toc_line;
1.463 foxr 1139: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) {
1140: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1141: }
1.319 foxr 1142: }
1143: } else {
1.448 bisitz 1144: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1145: }
1146: } else {
1147: if (not $env{'request.symb'} =~ m/\.page_/) {
1148: $frontmatter .= $begin_doc.$toc_line;
1.463 foxr 1149: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) {
1150: $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';
1151: }
1.319 foxr 1152: } else {
1.381 albertel 1153: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1154: }
1155: }
1156: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1157: }
1158:
1.159 albertel 1159: my $status=$Apache::inputtags::status['-1'];
1160: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1161: $target eq 'tex') {
1.249 albertel 1162: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1163: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1164: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1165: &Apache::inputtags::grade;
1.324 albertel 1166: } elsif ($status eq 'NEEDS_CHECKIN') {
1167: # no need to grade, and don't want to hide data
1.249 albertel 1168: } else {
1169: # move any submission data to .hidden
1170: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1171: }
1.159 albertel 1172: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1173: $Apache::inputtags::part eq '0' &&
1.252 albertel 1174: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1175: # if part is zero, no <part>s existed, so we need show the current
1176: # grading status
1177: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1178: $result.= $gradestatus;
1179: }
1180: if (
1.284 albertel 1181: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1182: ($target eq 'answer') || ($target eq 'tex')
1183: ) {
1.227 albertel 1184: if ($target ne 'tex' &&
1.284 albertel 1185: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1186: $result.="</form>";
1.159 albertel 1187: }
1188: if ($target eq 'web') {
1.346 albertel 1189: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1190: } elsif ($target eq 'tex') {
1.178 sakharuk 1191: my $endminipage = '';
1.284 albertel 1192: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1193: $endminipage = '\end{minipage}';
1194: }
1.284 albertel 1195: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1196: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1197: } else {
1.262 sakharuk 1198: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1199: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1200: $result .= $endminipage.'\end{document} ';
1201: } else {
1.382 albertel 1202: $result .= $endminipage;
1.262 sakharuk 1203: }
1.159 albertel 1204: }
1205: }
1206: }
1.476 www 1207: if ($target eq 'web') {
1208: $result.=&Apache::functionplotresponse::init_script();
1209: }
1.159 albertel 1210: if ($target eq 'grade') {
1211: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1212: &finalize_storage();
1213: }
1.284 albertel 1214: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1215: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1216: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1217: # normally we get it from above, but in CSTR
1.172 albertel 1218: # we always show answer mode too.
1.159 albertel 1219: }
1220: } elsif ($target eq 'meta') {
1221: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1222: @Apache::inputtags::response=();
1.159 albertel 1223: $result=&Apache::response::mandatory_part_meta;
1224: }
1.215 albertel 1225: $result.=&Apache::response::meta_part_order();
1.258 albertel 1226: $result.=&Apache::response::meta_response_order();
1.159 albertel 1227: } elsif ($target eq 'edit') {
1228: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1229: $result .= &problem_edit_footer();
1.320 albertel 1230: } elsif ($target eq 'modified') {
1231: $result .= $token->[2];
1.159 albertel 1232: }
1.155 albertel 1233:
1.284 albertel 1234: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1235: &Apache::inputtags::check_for_duplicate_ids();
1236: }
1.204 albertel 1237:
1238: &reset_problem_globals('problem');
1.159 albertel 1239:
1240: return $result;
1.48 albertel 1241: }
1242:
1.108 albertel 1243:
1.48 albertel 1244: sub start_library {
1.159 albertel 1245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1246: my ($result,$form_tag_start);
1.371 albertel 1247: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1248: &init_problem_globals('library');
1249: $Apache::lonhomework::type='problem';
1250: }
1.159 albertel 1251: if ($target eq 'edit') {
1.343 albertel 1252: ($result,$form_tag_start)=
1253: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1254: 'Edit');
1255: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1256: my $temp=&Apache::edit::insertlist($target,$token);
1257: $result.=$temp;
1258: } elsif ($target eq 'modified') {
1259: $result=$token->[4];
1.340 albertel 1260: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1261: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1262: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1263: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1264: ($result,$form_tag_start)=
1265: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1266: $name);
1.159 albertel 1267: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1268: $result.=" \n $form_tag_start".
1.159 albertel 1269: '<input type="hidden" name="submitted" value="yes" />';
1270: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1271: if ($Apache::lonhomework::type eq 'practice') {
1272: $result.= '<input type="submit" name="resetdata" '.
1273: 'value="'.&mt('New Problem Variation').'" />'.
1274: &practice_problem_header().'<hr />';
1275: }
1.159 albertel 1276: }
1277: return $result;
1.48 albertel 1278: }
1279:
1280: sub end_library {
1.159 albertel 1281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1282: my $result='';
1283: if ($target eq 'edit') {
1284: $result=&problem_edit_footer();
1.371 albertel 1285: } elsif ($target eq 'web'
1286: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1287: && $env{'request.state'} eq "construct") {
1.349 albertel 1288: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1289: }
1.371 albertel 1290: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1291: &reset_problem_globals('library');
1292: }
1.159 albertel 1293: return $result;
1.197 www 1294: }
1295:
1296: sub start_definetag {
1.326 albertel 1297: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1298:
1299: my $result;
1300:
1301: my $name = $token->[2]->{'name'};
1.326 albertel 1302: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1303: if ($target eq 'web') {
1304: if ($name=~/^\//) {
1305: $result=
1306: '<br /><table class="LC_sty_end"><tr><th>'.
1307: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1308: } else {
1309: $result=
1310: '<br /><table class="LC_sty_begin"><tr><th>'.
1311: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1312: }
1313: $skip = &HTML::Entities::encode($skip, '<>&"');
1314: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1315: }
1316: return $result;
1317: }
1318:
1319: sub end_definetag {
1320: return '';
1.1 albertel 1321: }
1322:
1323: sub start_block {
1.201 albertel 1324: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1325:
1326: my $result;
1.1 albertel 1327:
1.339 albertel 1328: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1329: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1330: my $code = $token->[2]->{'condition'};
1.385 albertel 1331: if (defined($code) && $code ne '') {
1.137 albertel 1332: if (!$Apache::lonxml::default_homework_loaded) {
1333: &Apache::lonxml::default_homework_load($safeeval);
1334: }
1.131 albertel 1335: $result = &Apache::run::run($code,$safeeval);
1336: &Apache::lonxml::debug("block :$code: returned :$result:");
1337: } else {
1338: $result='1';
1339: }
1340: if ( ! $result ) {
1.201 albertel 1341: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1342: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1343: }
1344: $result='';
1345: } elsif ($target eq 'edit') {
1346: $result .=&Apache::edit::tag_start($target,$token);
1347: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1348: $token,40);
1349: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1350: } elsif ($target eq 'modified') {
1351: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1352: $safeeval,'condition');
1353: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1354: }
1.131 albertel 1355: return $result;
1.1 albertel 1356: }
1357:
1358: sub end_block {
1.167 www 1359: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1360: my $result;
1361: if ($target eq "edit") {
1362: $result.= &Apache::edit::tag_end($target,$token,'');
1363: }
1364: return $result;
1365: }
1366:
1367: sub start_languageblock {
1.201 albertel 1368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1369:
1370: my $result;
1371:
1.339 albertel 1372: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1373: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1374: my $include = $token->[2]->{'include'};
1375: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1376: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1377: # This should not even happen, since we should at least have the server language
1.398 www 1378: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1379: # Now loop over all languages in order of preference
1380: foreach my $preferred_language (@preferred_languages) {
1.394 www 1381: # If the languageblock has no arguments, show the contents
1.399 www 1382: $result=1;
1383: my $found=0;
1.394 www 1384: # Do we have an include argument?
1.398 www 1385: if ($include) {
1.394 www 1386: # If include is specified, by default, don't render the block
1.399 www 1387: $result=0;
1.398 www 1388: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1389: # ... but if my preferred language is included, render it
1.398 www 1390: if ($included_language eq $preferred_language) {
1.399 www 1391: $result=1;
1392: $found=1;
1.398 www 1393: }
1394: }
1395: }
1.394 www 1396: # Do we have an exclude argument?
1.398 www 1397: if ($exclude) {
1.399 www 1398: $result=1;
1.398 www 1399: foreach my $excluded_language (split(/\,/,$exclude)) {
1400: if ($excluded_language eq $preferred_language) {
1.399 www 1401: $result=0;
1402: $found=1;
1.398 www 1403: }
1404: }
1405: }
1.399 www 1406: if ($found) { last; }
1.398 www 1407: }
1.201 albertel 1408: if ( ! $result ) {
1409: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1410: $style);
1411: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1412: }
1413: $result='';
1.167 www 1414: } elsif ($target eq 'edit') {
1415: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1416: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1417: $token,40);
1.211 albertel 1418: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1419: $token,40);
1420: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1421: } elsif ($target eq 'modified') {
1422: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1423: $safeeval,'include',
1424: 'exclude');
1.167 www 1425: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1426: }
1427: return $result;
1428: }
1429:
1430: sub end_languageblock {
1.170 www 1431: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1432: my $result;
1.201 albertel 1433: if ($target eq "edit") {
1.170 www 1434: $result.= &Apache::edit::tag_end($target,$token,'');
1435: }
1436: return $result;
1437: }
1438:
1.397 albertel 1439: {
1440: my %available_texts;
1441: sub start_translated {
1442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1443: &Apache::lonxml::register('Apache::structuretags',('lang'));
1444: undef(%available_texts);
1445: }
1446:
1447: sub end_translated {
1448: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1449: my $result;
1450: #show the translation on viewable targets
1451: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1452: # or non-viewable targets, if it's embedded in something that
1453: # wants the output
1454: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1455: && &Apache::lonxml::in_redirection() ) ) {
1456: my @possibilities = keys(%available_texts);
1457: my $which =
1458: &Apache::loncommon::languages(\@possibilities) || 'default';
1459: $result = $available_texts{$which};
1460: }
1461: undef(%available_texts);
1462: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1463: return $result;
1464: }
1465:
1466:
1467: sub start_lang {
1468: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1469: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1470: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1471: &Apache::lonxml::startredirection();
1472: }
1473: return '';
1474: }
1475:
1476: sub end_lang {
1477: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1478: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1479: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1480: my $result = &Apache::lonxml::endredirection();
1481: my $which = &Apache::lonxml::get_param('which',$parstack,
1482: $safeeval);
1.431 raeburn 1483: if ($which=~/\w/) {
1484: $available_texts{$which} = $result;
1485: }
1486: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1487: $safeeval);
1488: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1489: if ($language=~/\w/) {
1490: $available_texts{$language} = $result;
1491: }
1.427 bisitz 1492: }
1493:
1.397 albertel 1494: }
1495: return '';
1496: }
1497: }
1498:
1.170 www 1499: sub start_instructorcomment {
1.201 albertel 1500: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1501:
1502: my $result;
1503:
1.339 albertel 1504: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1505: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.468 raeburn 1506: $result=($env{'request.role'}=~/^(in|cc|co|au|ca|li)/);
1.284 albertel 1507: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1508: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1509: $parser,$style);
1.170 www 1510: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1511: }
1512: $result='';
1513: } elsif ($target eq 'edit') {
1514: $result .=&Apache::edit::tag_start($target,$token);
1515: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1516: }
1517: return $result;
1518: }
1519:
1520: sub end_instructorcomment {
1.159 albertel 1521: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1522: my $result;
1523: if ($target eq "edit") {
1524: $result.= &Apache::edit::tag_end($target,$token,'');
1525: }
1526: return $result;
1.4 tsai 1527: }
1528:
1529: sub start_while {
1.326 albertel 1530: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1531:
1.160 albertel 1532: my $result;
1.339 albertel 1533: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1534: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1535: my $code = $token->[2]->{'condition'};
1.4 tsai 1536:
1.160 albertel 1537: push( @Apache::structuretags::whileconds, $code);
1538: if (!$Apache::lonxml::default_homework_loaded) {
1539: &Apache::lonxml::default_homework_load($safeeval);
1540: }
1541: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1542: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1543: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1544: push( @Apache::structuretags::whileline, $token->[5]);
1545: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1546: if ( $result ) {
1547: &Apache::lonxml::newparser($parser,\$bodytext);
1548: }
1549: } elsif ($target eq 'edit') {
1550: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1551: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1552: $token,40);
1553: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1554: } elsif ($target eq 'modified') {
1555: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1556: $safeeval,'condition');
1557: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1558: }
1.160 albertel 1559: return $result;
1.4 tsai 1560: }
1561:
1562: sub end_while {
1.159 albertel 1563: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1564: my $result;
1565:
1.339 albertel 1566: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1567: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1568: my $code = pop(@Apache::structuretags::whileconds);
1569: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1570: my $line = pop(@Apache::structuretags::whileline);
1571: my $return = &Apache::run::run($code,$safeeval);
1572: my $starttime=time;
1573: my $error=0;
1574: while ($return) {
1575: if (time-$starttime >
1576: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1577: $return = 0; $error=1; next;
1.161 albertel 1578: }
1579: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1580: if ($target eq 'grade' || $target eq 'answer' ||
1581: $target eq 'analyze') {
1582: # grade/answer/analyze should produce no output but if we
1583: # are redirecting, the redirecter should know what to do
1584: # with the output
1585: if (!$Apache::lonxml::redirection) { undef($result); }
1586: }
1.161 albertel 1587: $return = &Apache::run::run($code,$safeeval);
1588: }
1589: if ($error) {
1.430 bisitz 1590: &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 1591: }
1592: } elsif ($target eq "edit") {
1593: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1594: }
1.160 albertel 1595: return $result;
1.1 albertel 1596: }
1.6 tsai 1597:
1.160 albertel 1598: # <randomlist show="1">
1.6 tsai 1599: # <tag1>..</tag1>
1600: # <tag2>..</tag2>
1601: # <tag3>..</tag3>
1.160 albertel 1602: # ...
1.6 tsai 1603: # </randomlist>
1604: sub start_randomlist {
1.326 albertel 1605: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1606: my $result;
1.339 albertel 1607: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1608: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1609: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1610: my $b_parser= HTML::LCParser->new(\$body);
1611: $b_parser->xml_mode(1);
1612: $b_parser->marked_sections(1);
1.159 albertel 1613: my $b_tok;
1614: my @randomlist;
1615: my $list_item;
1616: while($b_tok = $b_parser->get_token() ) {
1617: if($b_tok->[0] eq 'S') { # start tag
1618: # get content of the tag until matching end tag
1619: # get all text upto the matching tag
1620: # and push the content into @randomlist
1621: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1622: $b_parser);
1623: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1624: push(@randomlist,$list_item);
1625: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1626: # $list_item</b>";
1627: }
1628: if($b_tok->[0] eq 'T') { # text
1629: # what to do with text in between tags?
1630: # print "<b>TEXT $b_tok->[1]</b><br />";
1631: }
1632: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1633: # print "<b>END-TAG $b_tok->[1]</b><br />";
1634: # }
1635: }
1.303 albertel 1636: if (@randomlist) {
1637: my @idx_arr = (0 .. $#randomlist);
1638: &Apache::structuretags::shuffle(\@idx_arr);
1639: my $bodytext = '';
1640: my $show=$#randomlist;
1641: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1642: $showarg--;
1643: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1644: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1645: my @currlist;
1646: my $part = $Apache::inputtags::part;
1647: if ($part ne '') {
1648: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1649: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1650: if (!(grep(/^\Q$part\E$/,@currlist))) {
1651: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1652: }
1653: } else {
1654: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1655: }
1656: }
1657: }
1.303 albertel 1658: for(0 .. $show) {
1659: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1660: }
1661: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1662: }
1663: } elsif ($target eq 'edit' ) {
1664: $result .=&Apache::edit::tag_start($target,$token);
1665: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1666: $token,5);
1667: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1668: } elsif ($target eq 'modified' ) {
1669: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1670: $safeeval,'show');
1671: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1672: }
1673: return $result;
1.7 tsai 1674: }
1675:
1676: sub shuffle {
1677: my $a=shift;
1678: my $i;
1.303 albertel 1679: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1680: &Apache::response::pushrandomnumber();
1.159 albertel 1681: for($i=@$a;--$i;) {
1682: my $j=int(&Math::Random::random_uniform() * ($i+1));
1683: next if $i == $j;
1684: @$a[$i,$j] = @$a[$j,$i];
1685: }
1.251 albertel 1686: &Apache::response::poprandomnumber();
1.7 tsai 1687: }
1.6 tsai 1688: }
1689:
1690: sub end_randomlist {
1.159 albertel 1691: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1692: my $result;
1693: if ($target eq 'edit' ) {
1694: $result=&Apache::edit::tag_end($target,$token,
1695: 'End Randomly Parsed Block');
1696: }
1697: return $result;
1.6 tsai 1698: }
1699:
1.283 albertel 1700: sub ordered_show_check {
1701: my $last_part=$Apache::inputtags::partlist[-2];
1702: my $in_order=
1703: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1704: my $in_order_show=1;
1705: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1706: $in_order_show=&Apache::response::check_status($last_part);
1707: }
1708: return $in_order_show;
1709: }
1710:
1.469 www 1711:
1712: sub start_startpartmarker {
1713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1714: my $result='';
1715: if ($target eq 'edit') {
1716: $result=&Apache::edit::tag_start($target,$token);
1717: $result.=&mt('Marker for the start of a part. Place end marker below to wrap in-between tags into a new part.').'</td></tr>';
1718: $result.=&Apache::edit::end_table();
1719:
1720: }
1721: return $result;
1722: }
1723:
1724: sub end_startpartmarker {
1725: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1726: my @result;
1727: if ($target eq 'edit') { $result[1]='no'; }
1728: return @result;
1729: }
1730:
1731: sub start_endpartmarker {
1732: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1733: my $result='';
1734: if ($target eq 'edit') {
1735: $result=&Apache::edit::tag_start($target,$token);
1736: $result.=&mt('Marker for the end of a part. Place start marker above to wrap in-between tags into a new part.').'</td></tr>';
1737: $result.=&Apache::edit::end_table();
1738:
1739: }
1740: return $result;
1741: }
1742:
1743: sub end_endpartmarker {
1744: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1745: my @result;
1746: if ($target eq 'edit') { $result[1]='no'; }
1747: return @result;
1748: }
1749:
1750:
1751:
1752:
1753:
1.11 albertel 1754: sub start_part {
1.326 albertel 1755: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1756: if (!$Apache::lonxml::metamode) {
1757: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1758: # duedates.
1759: }
1.159 albertel 1760: my $result='';
1.386 albertel 1761: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1762: $Apache::inputtags::part=$id;
1.177 albertel 1763: push(@Apache::inputtags::partlist,$id);
1764: @Apache::inputtags::response=();
1.159 albertel 1765: @Apache::inputtags::previous=();
1766: @Apache::inputtags::previous_version=();
1.405 albertel 1767: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1768: &Apache::response::reset_params();
1769:
1.159 albertel 1770: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1771: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1772: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1773: my $in_order_show=&ordered_show_check();
1.214 albertel 1774: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1775: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1776: &Apache::run::run($expression,$safeeval);
1.159 albertel 1777:
1778: if ($target eq 'meta') {
1.224 www 1779: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1780: return &Apache::response::mandatory_part_meta.
1781: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1782: } elsif ($target eq 'web' || $target eq 'grade' ||
1783: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1784: if ($hidden || !$in_order_show) {
1.326 albertel 1785: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1786: } else {
1787: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1788: push (@Apache::inputtags::status,$status);
1789: my $expression='$external::datestatus="'.$status.'";';
1790: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1791: &Apache::run::run($expression,$safeeval);
1.284 albertel 1792: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1793: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1794: }
1.216 albertel 1795: if (( $status eq 'CLOSED' ) ||
1796: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1797: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1798: ( $status eq 'BANNED') ||
1799: ( $status eq 'UNAVAILABLE') ||
1800: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1801: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1802: $style);
1.159 albertel 1803: if ( $target eq "web" ) {
1.211 albertel 1804: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1805: } elsif ( $target eq 'tex' ) {
1.284 albertel 1806: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1807: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1808: } else {
1.211 albertel 1809: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1810: }
1.159 albertel 1811: }
1812: } else {
1813: if ($target eq 'tex') {
1.284 albertel 1814: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1815: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1816: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1817: } else {
1818: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1819: }
1.195 sakharuk 1820: }
1.159 albertel 1821: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1822: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1823: my @allkeys = split /,/,$allkeys;
1824: my $allow_print_points = 0;
1825: foreach my $partial_key (@allkeys) {
1.230 albertel 1826: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1827: if ($1 ne '0') {$allow_print_points=1;}
1828: }
1829: }
1.275 albertel 1830: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1831: if (defined($maxtries) && $maxtries < 0) {
1832: $allow_print_points=0;
1833: }
1.302 albertel 1834: if (lc($env{'course.'.$env{'request.course.id'}.
1835: '.disableexampointprint'}) eq 'yes') {
1836: $allow_print_points=0;
1837: }
1.463 foxr 1838: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) {
1839: $result .= '\vskip 10mm\fbox{\textit{'.$weight.' pt}}';
1840:
1841: }
1.233 www 1842: } elsif ($target eq 'web') {
1.475 raeburn 1843: $result.='<a name="'.&escape($Apache::inputtags::part).'" ></a>';
1.159 albertel 1844: }
1845: }
1846: }
1847: } elsif ($target eq 'edit') {
1848: $result.=&Apache::edit::tag_start($target,$token);
1849: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1850: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1851: ' '.
1852: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1853: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1854: } elsif ($target eq 'modified') {
1855: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1856: $safeeval,'id','display');
1.159 albertel 1857: if ($constructtag) {
1.225 albertel 1858: #limiting ids to only letters numbers, and space
1.224 www 1859: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1860: $result = &Apache::edit::rebuild_tag($token);
1861: }
1862: }
1863: return $result;
1.11 albertel 1864: }
1865:
1866: sub end_part {
1.159 albertel 1867: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1868: &Apache::lonxml::debug("in end_part $target ");
1869: my $status=$Apache::inputtags::status['-1'];
1870: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1871: my $in_order_show=&ordered_show_check();
1.321 albertel 1872: my $result;
1873: if (!$Apache::lonxml::metamode) {
1874: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1875: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1876: }
1.312 albertel 1877: if ($target eq 'grade') {
1.249 albertel 1878: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1879: !$hidden && $in_order_show) {
1.311 foxr 1880: $result.=&Apache::inputtags::grade;
1.249 albertel 1881: } else {
1882: # move any submission data to .hidden
1883: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1884: }
1.283 albertel 1885: } elsif (($target eq 'web' || $target eq 'tex') &&
1886: !$hidden && $in_order_show) {
1.159 albertel 1887: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1888: $target);
1.212 albertel 1889: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1890: $gradestatus='';
1891: }
1.311 foxr 1892: $result.=$gradestatus;
1.265 sakharuk 1893: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1894: } elsif ($target eq 'edit') {
1.311 foxr 1895: $result.=&Apache::edit::end_table();
1.322 albertel 1896: } elsif ($target eq 'modified') {
1897: $result .= $token->[2];
1.159 albertel 1898: }
1899: pop @Apache::inputtags::status;
1900: $Apache::inputtags::part='';
1.295 albertel 1901: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1902: return $result;
1.11 albertel 1903: }
1.1 albertel 1904:
1.25 albertel 1905: sub start_preduedate {
1.326 albertel 1906: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1907: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1908: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1909: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1910: if (!$Apache::lonhomework::scantronmode &&
1911: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1912: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1913: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1914: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1915: }
1.24 albertel 1916: }
1.159 albertel 1917: return '';
1.24 albertel 1918: }
1919:
1.25 albertel 1920: sub end_preduedate {
1.159 albertel 1921: return '';
1.24 albertel 1922: }
1923:
1.369 foxr 1924: # In all the modes where <postanswerdate> text is
1925: # displayable, all we do is eat up the text between the start/stop
1926: # tags if the conditions are not right to display it.
1.25 albertel 1927: sub start_postanswerdate {
1.326 albertel 1928: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1929: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1930: &Apache::lonnet::allowed('pav',
1931: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1932: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1933: $target eq 'tex' ) {
1.300 albertel 1934: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1935: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1936: (($target eq 'tex') && !$pav)) {
1.326 albertel 1937: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1938: }
1939: }
1940: return '';
1.24 albertel 1941: }
1942:
1.25 albertel 1943: sub end_postanswerdate {
1.159 albertel 1944: return '';
1.24 albertel 1945: }
1946:
1.25 albertel 1947: sub start_notsolved {
1.326 albertel 1948: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1949: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1950: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1951: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1952: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1953: if ($gradestatus =~ /^correct/ &&
1954: &Apache::response::show_answer()) {
1.159 albertel 1955: &Apache::lonxml::debug("skipping");
1.326 albertel 1956: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1957: }
1.24 albertel 1958: }
1.159 albertel 1959: return '';
1.24 albertel 1960: }
1961:
1.25 albertel 1962: sub end_notsolved {
1.159 albertel 1963: return '';
1.24 albertel 1964: }
1965:
1966: sub start_solved {
1.326 albertel 1967: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1968: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1969: $target eq 'tex') {
1970: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1971: if ($gradestatus !~ /^correct/ ||
1972: !&Apache::response::show_answer()) {
1.326 albertel 1973: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1974: }
1.24 albertel 1975: }
1.159 albertel 1976: return '';
1.24 albertel 1977: }
1978:
1979: sub end_solved {
1.248 albertel 1980: return '';
1981: }
1982:
1983: sub start_problemtype {
1.326 albertel 1984: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1985: my $result;
1.339 albertel 1986: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1987: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1988: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1989: if (!defined($mode)) { $mode='show'; }
1990: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1991: my $found=0;
1992: foreach my $type (split(',',$for)) {
1993: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1994: }
1995: if ($mode eq 'show' && !$found) {
1.326 albertel 1996: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1997: }
1998: if ($mode eq 'hide' && $found) {
1.326 albertel 1999: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 2000: }
2001: } elsif ($target eq 'edit') {
2002: $result .=&Apache::edit::tag_start($target,$token);
2003: $result.=&Apache::edit::select_arg('Mode:','mode',
2004: [['show','Show'],
2005: ['hide','Hide']]
2006: ,$token);
2007: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
2008: [ ['exam','Exam/Quiz Problem'],
2009: ['survey','Survey'],
1.465 raeburn 2010: ['surveycred','Survey (with credit)'],
2011: ['anonsurvey','Anonymous Survey'],
2012: ['anonsurveycred','Anonymous Survey (with credit)'],
1.428 raeburn 2013: ['problem','Homework Problem'],
2014: ['practice','Practice Problem'] ]
1.248 albertel 2015: ,$token);
2016: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
2017: } elsif ($target eq 'modified') {
2018: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
2019: $safeeval,'mode','for');
2020: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
2021: }
2022: return $result;
2023: }
2024:
2025: sub end_problemtype {
1.159 albertel 2026: return '';
1.24 albertel 2027: }
1.34 albertel 2028:
2029: sub start_startouttext {
1.159 albertel 2030: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2031: my @result=(''.'');
2032: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 2033:
2034: my $nesting =
2035: &Apache::lonxml::set_state('outtext',
2036: &Apache::lonxml::get_state('outtext')+1);
2037: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
2038: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
2039: }
1.159 albertel 2040: return (@result);
1.34 albertel 2041: }
1.159 albertel 2042:
1.34 albertel 2043: sub end_startouttext {
1.326 albertel 2044: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 2045: my $result='';
2046: my $text='';
2047: if ($target eq 'edit') {
1.424 foxr 2048: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 2049: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 2050: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 2051: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 2052: .&Apache::edit::deletelist($target,$token)
1.474 raeburn 2053: .'</span></td>'
2054: .'<td align="left"><span id="math_'.$areaid.'" />'
2055: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
2056: .'<span></td>'
2057: .'<td>'
2058: .&Apache::edit::insertlist($target,$token)
2059: .'</td>'
2060: .'<td align="right" valign="top">' .
2061: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 2062: &Apache::edit::end_row().
1.362 albertel 2063: &Apache::edit::start_spanning_row()."\n".
1.255 www 2064: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 2065: }
2066: if ($target eq 'modified') {
1.219 albertel 2067: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2068: }
2069: if ($target eq 'tex') {
2070: $result .= '\noindent ';
2071: }
2072: return $result;
1.34 albertel 2073: }
1.159 albertel 2074:
1.34 albertel 2075: sub start_endouttext {
1.159 albertel 2076: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2077: my $result='';
2078: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2079: if ($target eq "modified") {
2080: $result='<endouttext />'.
1.377 albertel 2081: &Apache::edit::handle_insertafter('startouttext');
2082: }
1.404 albertel 2083:
2084: my $nesting =
2085: &Apache::lonxml::set_state('outtext',
2086: &Apache::lonxml::get_state('outtext')-1);
2087: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2088: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2089: &Apache::lonxml::set_state('outtext', 0);
2090: }
1.159 albertel 2091: return $result;
1.34 albertel 2092: }
1.159 albertel 2093:
1.34 albertel 2094: sub end_endouttext {
1.159 albertel 2095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2096: my @result=('','');
2097: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2098: return (@result);
1.34 albertel 2099: }
1.159 albertel 2100:
1.45 albertel 2101: sub delete_startouttext {
1.326 albertel 2102: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2103: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2104: my $text=$$parser['-1']->get_text("/endouttext");
2105: my $ntoken=$$parser['-1']->get_token();
2106: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2107: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2108: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2109: # they did the last time round
2110: &Apache::lonxml::increasedepth($ntoken);
2111: &Apache::lonxml::decreasedepth($ntoken);
2112: return 1;
1.193 www 2113: }
2114:
2115: sub start_simpleeditbutton {
2116: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2117: my $result='';
1.284 albertel 2118: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2119: ($target eq 'web') &&
1.330 albertel 2120: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2121: my $url=$env{'request.noversionuri'};
1.193 www 2122: $url=~s/\?.*$//;
1.367 albertel 2123: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2124: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2125: # $result='<p class="LC_warning">'
2126: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2127: # .&Apache::loncommon::help_open_topic('Caching')
2128: # .'</p>';
1.451 bisitz 2129: $result.=&Apache::lonhtmlcommon::start_funclist()
2130: .&Apache::lonhtmlcommon::add_item_funclist(
2131: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2132: .&mt('Edit').'</a>')
2133: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2134:
1.193 www 2135: }
2136: return $result;
2137: }
2138:
2139: sub end_simpleeditbutton {
2140: return '';
1.45 albertel 2141: }
1.34 albertel 2142:
1.428 raeburn 2143: sub practice_problem_header {
2144: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2145: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2146: '</span>';
2147: }
2148:
1.1 albertel 2149: 1;
2150: __END__
1.435 jms 2151:
2152: =pod
2153:
2154: =back
2155:
2156: =cut
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