Annotation of loncom/homework/structuretags.pm, revision 1.412
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.412 ! albertel 4: # $Id: structuretags.pm,v 1.411 2007/11/13 23:01:05 albertel 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:
1.133 sakharuk 30:
1.1 albertel 31: package Apache::structuretags;
32:
33: use strict;
34: use Apache::lonnet;
1.101 sakharuk 35: use Apache::File();
1.147 www 36: use Apache::lonmenu;
1.210 albertel 37: use Apache::lonlocal;
1.231 sakharuk 38: use Apache::lonxml;
1.338 albertel 39: use Apache::lonenc();
1.267 albertel 40: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 41: use lib '/home/httpd/lib/perl/';
42: use LONCAPA;
43:
1.78 harris41 44: BEGIN {
1.397 albertel 45: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 46: }
47:
48: sub start_web {
1.326 albertel 49: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 50: if ($target ne 'edit' && $target ne 'modified') {
51: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
52: if ($target eq 'web' || $target eq 'webgrade') {
53: return $bodytext;
54: }
55: } elsif ($target eq "edit" ) {
56: my $bodytext =
57: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
58: my $result = &Apache::edit::tag_start($target,$token);
59: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
60: return $result;
61: } elsif ( $target eq "modified" ) {
62: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 63: }
64: return '';
1.10 albertel 65: }
66:
67: sub end_web {
1.44 ng 68: return '';
1.10 albertel 69: }
70:
71: sub start_tex {
1.326 albertel 72: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 73: my $result='';
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
76: if ($target eq 'tex') {
77: return $bodytext.' ';
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/tex",$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 $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 87: }
1.198 sakharuk 88: return $result;;
1.10 albertel 89: }
90:
91: sub end_tex {
1.44 ng 92: return '';
1.9 albertel 93: }
94:
1.400 albertel 95: sub homework_js {
96: return &Apache::loncommon::resize_textarea_js().
97: <<'JS';
98: <script type="text/javascript">
99: function setSubmittedPart (part) {
100: this.document.lonhomework.submitted.value="part_"+part;
101: }
102:
103: function image_response_click (which, e) {
104: init_geometry();
105: if (!e) { e = window.event; } //IE
106: var input_element = document.lonhomework.elements[which];
1.401 albertel 107: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 108: var token = token_element.value;
1.401 albertel 109: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 110: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
111: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
112: var click = x+':'+y;
113: input_element.value = click;
114: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
115: }
116: </script>
117: JS
118: }
119:
1.48 albertel 120: sub page_start {
1.345 albertel 121: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
122: $extra_head)=@_;
1.159 albertel 123: my %found;
1.207 albertel 124: foreach my $taginside (@$tagstack) {
1.159 albertel 125: foreach my $taglookedfor ('html','body','form') {
126: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
127: }
128: }
129:
1.343 albertel 130: if ($target eq 'tex') {
131: return
132: &Apache::londefdef::start_html($target,$token,$tagstack,
133: $parstack,$parser,$safeeval);
134: }
135:
1.400 albertel 136: $extra_head .= &homework_js();
1.374 albertel 137:
1.344 albertel 138: my %body_args;
139: if (defined($found{'html'})) {
140: $body_args{'skip_phases'}{'head'}=1;
141: } else {
1.343 albertel 142:
1.345 albertel 143: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 144:
1.379 albertel 145: $extra_head .= &Apache::londefdef::generate_css_links();
146:
1.384 albertel 147: if ($env{'request.state'} eq 'construct') {
1.343 albertel 148: $extra_head.=&Apache::edit::js_change_detection().
149: "<script type=\"text/javascript\">\n".
150: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
151: &Apache::loncommon::browser_and_searcher_javascript().
152: "\n</script>\n";
153: }
1.159 albertel 154: }
1.343 albertel 155:
1.344 albertel 156: if (defined($found{'body'})) {
157: $body_args{'skip_phases'}{'body'}=1;
158: } elsif (!defined($found{'body'})
159: && $env{'request.state'} eq 'construct') {
1.343 albertel 160: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 161: if ($env{'environment.remote'} ne 'off') {
162: $body_args{'only_body'} = 1;
163: }
1.297 albertel 164: }
1.272 albertel 165: } elsif (!defined($found{'body'})) {
1.343 albertel 166: my %add_entries;
1.159 albertel 167: my $background=&Apache::lonxml::get_param('background',$parstack,
168: $safeeval);
1.343 albertel 169: if ($background ne '' ) {
170: $add_entries{'background'} = $background;
171: }
1.344 albertel 172:
1.290 albertel 173: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
174: $safeeval);
1.344 albertel 175: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
176:
177: $body_args{'bgcolor'} = $bgcolor;
178: $body_args{'no_title'} = 1;
179: $body_args{'force_register'} = 1;
180: $body_args{'add_entries'} = \%add_entries;
1.391 albertel 181: if ($env{'environment.remote'} eq 'off'
182: && $env{'request.state'} eq 'construct') {
183: $body_args{'only_body'} = 1;
184: }
1.344 albertel 185: }
1.365 albertel 186: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 187: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
188: \%body_args);
189:
190: if (!defined($found{'body'})
191: && $env{'request.state'} ne 'construct'
192: && ($target eq 'web' || $target eq 'webgrade')) {
193:
1.367 albertel 194: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 195: if ($symb eq '' && !$publicuser) {
196: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
197: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
198: $page_start .= $help;
1.159 albertel 199: }
1.344 albertel 200: }
201:
1.409 albertel 202: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 203: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 204: }
1.344 albertel 205:
1.159 albertel 206: my $form_tag_start;
207: if (!defined($found{'form'})) {
1.337 albertel 208: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 209: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 210: $form_tag_start.=$uri.'" ';
211: if ($target eq 'edit') {
212: $form_tag_start.=&Apache::edit::form_change_detection();
213: }
1.368 albertel 214: $form_tag_start.='>'."\n";
1.355 albertel 215:
216: my $symb=&Apache::lonnet::symbread();
217: if ($symb =~ /\S/) {
218: $symb=
219: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
220: $form_tag_start.=
1.368 albertel 221: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 222: }
1.159 albertel 223: }
1.343 albertel 224: return ($page_start,$form_tag_start);
1.105 albertel 225: }
226:
1.141 matthew 227: #use Time::HiRes();
1.105 albertel 228: sub get_resource_name {
1.159 albertel 229: my ($parstack,$safeeval)=@_;
1.388 foxr 230: my $name;
1.204 albertel 231: if (defined($Apache::lonhomework::name)) {
1.388 foxr 232: $name = $Apache::lonhomework::name;
233: } else {
234: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 235: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 236: if ($name eq '') {
237: $name=&Apache::lonnet::EXT('resource.title');
238: if ($name eq 'con_lost') { $name = ''; }
239: }
240: if ($name!~/\S+/) {
241: $name=$env{'request.uri'};
242: $name=~s-.*/([^/]+)$-$1-;
243: }
244: # The name has had html tags escaped:
245:
246: $name=~s/</</gs;
247: $name=~s/>/>/gs;
248:
249: $Apache::lonhomework::name=$name;
1.204 albertel 250: }
1.159 albertel 251: return $name;
1.105 albertel 252: }
253:
254: sub setup_rndseed {
1.159 albertel 255: my ($safeeval)=@_;
256: my $rndseed;
1.367 albertel 257: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 258: if ($env{'request.state'} eq "construct"
259: || $symb eq ''
260: || $Apache::lonhomework::type eq 'practice'
261: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 262: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 263: ['rndseed']);
1.284 albertel 264: $rndseed=$env{'form.rndseed'};
1.159 albertel 265: if (!$rndseed) {
1.162 albertel 266: $rndseed=$Apache::lonhomework::history{'rndseed'};
267: if (!$rndseed) {
268: $rndseed=time;
269: }
1.284 albertel 270: $env{'form.rndseed'}=$rndseed;
1.162 albertel 271: }
1.374 albertel 272: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
273: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 274: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 275: srand(time);
276: $rndseed=int(rand(2100000000));
1.284 albertel 277: $env{'form.rndseed'}=$rndseed;
278: delete($env{'form.resetdata'});
279: delete($env{'form.newrandomization'});
1.159 albertel 280: }
1.187 albertel 281: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 282: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 283: }
1.247 albertel 284: if ($Apache::lonhomework::history{'resource.CODE'}) {
285: $rndseed=&Apache::lonnet::rndseed();
286: }
1.221 albertel 287: if ($safeeval) {
288: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 289: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 290: }
1.159 albertel 291: }
292: return $rndseed;
1.105 albertel 293: }
294:
1.268 albertel 295: sub remember_problem_state {
296: return '
1.284 albertel 297: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
298: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
299: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 300: }
301:
1.105 albertel 302: sub problem_edit_header {
1.268 albertel 303: return '<input type="hidden" name="submitted" value="edit" />'.
304: &Apache::structuretags::remember_problem_state().'
1.408 albertel 305: <div class="LC_edit_problem_header">
306: <div class="LC_edit_problem_header_title">
307: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
308: </div>
309: <div class="LC_edit_problem_discards">
1.210 albertel 310: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
1.243 matthew 311: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
1.328 albertel 312: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 313: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 314: </div>
315: <div class="LC_edit_problem_saves">
316: <input type="submit" name="submit" accesskey="s" value="'.&mt('Save and Edit').'" />
317: <input type="submit" name="submit" accesskey="v" value="'.&mt('Save and View').'" />
318: </div>
319: <hr class="LC_edit_problem_divide" />
1.409 albertel 320: '.&Apache::lonxml::message_location().'
1.408 albertel 321: </div>
322: '.
1.282 albertel 323: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 324: }
325:
326: sub problem_edit_footer {
1.412 ! albertel 327: return '</td></tr></table><br />
! 328: <div class="LC_edit_problem_footer">
! 329: <hr class="LC_edit_problem_divide" />
! 330: <div class="LC_edit_problem_discards">
! 331: <input type="hidden" name="problemmode" value="'.&mt('Edit').'" />
! 332: <input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
! 333: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
! 334: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
! 335: </div>
! 336: <div class="LC_edit_problem_saves">
! 337: <input type="submit" name="submit" value="'.&mt('Save and Edit').'" />
! 338: <input type="submit" name="submit" value="'.&mt('Save and View').'" />
! 339: </div>
! 340: <hr class="LC_edit_problem_divide" />
! 341: </div>
! 342: '.
! 343:
1.348 albertel 344: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 345: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 346: }
347:
1.235 albertel 348: sub option {
349: my ($value,$name) = @_;
350: my $result ="<option value='".$value."' ";
1.284 albertel 351: if ($env{'form.'.$name} eq $value) {
1.235 albertel 352: $result.=" selected='on' ";
353: }
354: $result.='>';
355: return $result;
356: }
357:
1.105 albertel 358: sub problem_web_to_edit_header {
1.159 albertel 359: my ($rndseed)=@_;
1.406 albertel 360: my $result .= '<div class="LC_edit_problem_header">';
361:
362: if (!$Apache::lonhomework::parsing_a_task) {
363: $result .=
364: '<div class="LC_edit_problem_header_title">'.
365: &mt('Problem Testing').
366: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
367: '</div>';
368: } else {
369: $result .=
370: '<div class="LC_edit_problem_header_title">'.
371: &mt('Task Testing').
372: '</div>';
373: }
374:
1.315 albertel 375: my $show_all_foils_text =
376: ($Apache::lonhomework::parsing_a_task) ?
377: &mt(' Show All Instances')
378: : &mt(' Show All Foils');
379:
1.406 albertel 380: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
381: if (defined($env{'form.showallfoils'})) { $show_all.='checked="checked"'; }
382: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
383:
384:
1.384 albertel 385:
1.406 albertel 386: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 387: if (!$Apache::lonhomework::parsing_a_task) {
388: $result.="
1.406 albertel 389: <div class='LC_edit_problem_header_row1'>
390: <span class=\"LC_nobreak\">
1.405 albertel 391: ".&mt("Problem Status:")."
1.235 albertel 392: <select name='problemstate'>
1.270 albertel 393: <option value=''></option>
1.235 albertel 394: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
395: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
396: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
397: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
398: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
399: </select>
1.406 albertel 400: </span>
401: <span class=\"LC_nobreak\">
1.405 albertel 402: ".&mt("Problem Type:")."
1.235 albertel 403: <select name='problemtype'>
1.270 albertel 404: <option value=''></option>
1.242 albertel 405: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
406: ".&option('problem','problemtype').&mt("Homework problem")."</option>
407: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 408: </select>
1.406 albertel 409: </span>
410: $show_all
411: </div>
412: <div class='LC_edit_problem_header_row2'>
413: <span class=\"LC_nobreak\">
1.405 albertel 414: ".&mt("Feedback Mode:")."
1.235 albertel 415: <select name='problemstatus'>
416: <option value=''></option>
1.242 albertel 417: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 418: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
419: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 420: </select>
1.406 albertel 421: </span>
422: ";
423:
1.376 albertel 424: } elsif ($Apache::lonhomework::parsing_a_task) {
425: $result.="
1.406 albertel 426: <div class='LC_edit_problem_header_row1'>
427: <span class=\"LC_nobreak\">
1.405 albertel 428: ".&mt("Problem Status:")."
1.376 albertel 429: <select name='problemstate'>
430: <option value=''></option>
431: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
432: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
433: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
434: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
435: </select>
1.406 albertel 436: </span>
437: $show_all
438: ";
439: }
440:
441: $result.='
442: <span class="LC_nobreak">
443: '.&mt('Apply style file: ').'
444: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
445: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
446: </span>
447: </div>
448: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
449: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
450: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
451: </div>
452: <hr class="LC_edit_problem_divide" />
453: <div class="LC_edit_problem_header_randomize_row">
454: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
455: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
456: <input type="text" name="rndseed" size="10" value="'.
457: $rndseed.'"
458: onchange="javascript:document.lonhomework.changerandseed.click()" />';
459:
460: if (!$Apache::lonhomework::parsing_a_task) {
461: my $numtoanalyze=$env{'form.numtoanalyze'};
462: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 463: $result .= '<span class="LC_nobreak">'.
464: &mt('[_1] for [_2] versions.',
465: '<input type="submit" name="problemmode" value='.&mt('"Calculate answers').'" />',
466: '<input type="text" name="numtoanalyze" value="'.
467: $numtoanalyze.'" size="5" />').
468: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
469: '</span>';
470:
1.313 albertel 471: }
1.406 albertel 472:
473: $result.='
474: </div>
1.408 albertel 475: <div class="LC_edit_problem_header_edit_row">';
476: $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
477: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
478: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />';
479: $result.='
480: </div>
1.409 albertel 481: '.&Apache::lonxml::message_location().'
1.406 albertel 482: </div>';
1.159 albertel 483: return $result;
1.48 albertel 484: }
485:
1.65 albertel 486: sub initialize_storage {
1.357 albertel 487: my ($given_symb) = @_;
1.353 albertel 488: undef(%Apache::lonhomework::results);
489: undef(%Apache::lonhomework::history);
1.357 albertel 490: my ($symb,$courseid,$domain,$name) =
1.367 albertel 491: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 492:
493: # anonymous users (CODEd exams) have no data
494: if ($name eq 'anonymous'
495: && !defined($domain)) {
496: return;
497: }
498:
1.333 albertel 499: if ($env{'request.state'} eq 'construct'
500: || $symb eq ''
501: || $Apache::lonhomework::type eq 'practice') {
502:
503: my $namespace = $symb || $env{'request.uri'};
504: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 505: ($env{'form.resetdata'} eq &mt('New Problem Variation')
506: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 507: $env{'form.newrandomization'} eq &mt('New Randomization')) {
508: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
509: &Apache::lonxml::debug("Attempt reset");
510: }
1.159 albertel 511: %Apache::lonhomework::history=
1.333 albertel 512: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 513: my ($temp)=keys %Apache::lonhomework::history ;
514: &Apache::lonxml::debug("Return message of $temp");
515: } else {
516: %Apache::lonhomework::history=
517: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
518: }
1.353 albertel 519:
1.159 albertel 520: #ignore error conditions
1.67 albertel 521: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 522: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 523: }
524:
525: # -------------------------------------------------------------finalize_storage
526: # Stores away the result has to a student's environment
527: # checks form.grade_ for specific values, other wises stores
528: # to the running users environment
1.285 raeburn 529: # Will increment totals for attempts, students, and corrects
530: # if running user has student role.
1.65 albertel 531: sub finalize_storage {
1.357 albertel 532: my ($given_symb) = @_;
1.159 albertel 533: my $result;
1.289 albertel 534: if (%Apache::lonhomework::results) {
1.323 albertel 535: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
536: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 537: my ($symb,$courseid,$domain,$name) =
1.367 albertel 538: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 539: if ($env{'request.state'} eq 'construct'
540: || $symb eq ''
541: || $Apache::lonhomework::type eq 'practice') {
542: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 543: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 544: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 545: $namespace,'',$domain,$name);
1.159 albertel 546: &Apache::lonxml::debug('Construct Store return message:'.$result);
547: } else {
548: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
549: $symb,$courseid,$domain,$name);
550: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 551: if ($env{'request.role'} =~/^st/) {
552: &store_aggregates($symb,$courseid);
553: }
1.159 albertel 554: }
1.323 albertel 555: } else {
556: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 557: }
1.159 albertel 558: return $result;
1.65 albertel 559: }
560:
1.285 raeburn 561: # -------------------------------------------------------------store_aggregates
562: # Sends hash of values to be incremented in nohist_resourcetracker.db
563: # for the course. Increments total number of attempts, unique students
564: # and corrects for each part for an instance of a problem, as appropriate.
565: sub store_aggregates {
566: my ($symb,$courseid) = @_;
1.286 albertel 567: my %aggregate;
568: my @parts;
1.288 albertel 569: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
570: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 571: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 572: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 573: push(@parts, $1);
1.285 raeburn 574: }
575: }
1.286 albertel 576: foreach my $part (@parts) {
577: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
578: eq 'APPROX_ANS' ||
579: $Apache::lonhomework::results{'resource.'.$part.'.award'}
580: eq 'EXACT_ANS') {
1.287 albertel 581: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 582: }
1.286 albertel 583: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 584: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 585: } else {
1.293 albertel 586: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 587: if ($last_reset) {
1.293 albertel 588: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 589: $aggregate{$symb."\0".$part."\0users"} = 1;
590: }
591: }
1.285 raeburn 592: }
1.287 albertel 593: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 594: }
1.292 raeburn 595: if (keys (%aggregate) > 0) {
1.289 albertel 596: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 597: $cdomain,$cname);
598: }
599: }
1.289 albertel 600:
1.65 albertel 601: sub checkout_msg {
1.211 albertel 602: my %lt=&Apache::lonlocal::texthash(
603: 'resource'=>'The resource needs to be checked out',
604: '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.',
605: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
606: 'checkout'=>'Check out Exam for Viewing',
607: 'checkout?'=>'Check out Exam?');
1.352 albertel 608: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 609: return (<<ENDCHECKOUT);
1.211 albertel 610: <h2>$lt{'resource'}</h2>
611: <p>$lt{'id_expln'}</p>
612: <font color="red">
613: <p>$lt{'warning'}</p>
1.91 albertel 614: </font>
1.352 albertel 615: <form name="checkout" method="POST" action="$uri">
1.91 albertel 616: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 617: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 618: </form>
619: ENDCHECKOUT
620: }
621:
1.252 albertel 622: sub firstaccess_msg {
1.253 albertel 623: my ($time,$symb)=@_;
624: my ($map)=&Apache::lonnet::decode_symb($symb);
625: my $foldertitle=&Apache::lonnet::gettitle($map);
626: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 627: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 628: return (<<ENDCHECKOUT);
1.253 albertel 629: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
1.352 albertel 630: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 631: <input type="hidden" name="markaccess" value="yes" />
632: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
633: </form>
634: ENDCHECKOUT
635: }
636:
1.204 albertel 637: sub init_problem_globals {
638: my ($type)=@_;
639: #initialize globals
1.308 foxr 640: # For problems, we start out in part 0 (outside a <part> tag).
641: # and part 0 is used to describe the main body of the <problem>
642: #
1.204 albertel 643: if ($type eq 'problem') {
644: $Apache::inputtags::part='0';
645: @Apache::inputtags::partlist=('0');
1.405 albertel 646: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 647: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 648:
1.266 albertel 649: } elsif ($type eq 'library') {
1.204 albertel 650: $Apache::inputtags::part='';
651: @Apache::inputtags::partlist=();
1.405 albertel 652: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 653: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 654:
1.304 albertel 655: } elsif ($type eq 'Task') {
656: $Apache::inputtags::part='0';
657: @Apache::inputtags::partlist=('0');
1.405 albertel 658: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 659: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 660: }
661: @Apache::inputtags::responselist = ();
662: @Apache::inputtags::importlist = ();
663: @Apache::inputtags::previous=();
664: @Apache::inputtags::previous_version=();
665: $Apache::structuretags::printanswer='No';
666: @Apache::structuretags::whileconds=();
667: @Apache::structuretags::whilebody=();
668: @Apache::structuretags::whileline=();
669: $Apache::lonhomework::scantronmode=0;
670: undef($Apache::lonhomework::name);
1.358 albertel 671: undef($Apache::lonhomework::default_type);
672: undef($Apache::lonhomework::type);
1.204 albertel 673: }
674:
675: sub reset_problem_globals {
676: my ($type)=@_;
677: undef(%Apache::lonhomework::history);
678: undef(%Apache::lonhomework::results);
679: undef($Apache::inputtags::part);
1.208 albertel 680: #don't undef this, lonhomework.pm takes care of this, we use this to
681: #detect if we try to do 2 problems in one file
682: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 683: undef($Apache::lonhomework::name);
1.358 albertel 684: undef($Apache::lonhomework::default_type);
685: undef($Apache::lonhomework::type);
686: undef($Apache::lonhomework::scantronmode);
687: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 688: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 689: }
690:
1.241 albertel 691: sub set_problem_state {
1.240 albertel 692: my ($part)=@_;
1.284 albertel 693: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 694: $Apache::lonhomework::history{"resource.$part.solved"}=
695: 'correct_by_student';
696: }
697: }
698:
1.241 albertel 699: sub get_problem_status {
700: my ($part)=@_;
1.267 albertel 701: my $problem_status;
1.284 albertel 702: if ($env{'request.state'} eq 'construct' &&
703: defined($env{'form.problemstatus'})) {
704: $problem_status=$env{'form.problemstatus'};
1.267 albertel 705: } else {
706: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
707: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 708: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 709: }
710: return $problem_status;
711: }
712:
1.9 albertel 713: sub start_problem {
1.326 albertel 714: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 715:
1.311 foxr 716: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 717: if (!$Apache::lonxml::metamode) {
718: &Apache::lonxml::startredirection();
719: }
1.311 foxr 720:
1.308 foxr 721: # Problems don't nest and we don't allow more than one <problem> in
722: # a .problem file.
723: #
1.184 albertel 724: if ( $Apache::inputtags::part ne '' ||
725: $Apache::lonhomework::parsing_a_problem) {
726: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 727: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 728: return '';
729: }
1.184 albertel 730:
731: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 732: &init_problem_globals('problem');
1.166 albertel 733:
1.284 albertel 734: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 735: $Apache::lonhomework::scantronmode=1;
736: }
1.161 albertel 737:
1.159 albertel 738: if ($target ne 'analyze') {
739: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 740: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 741: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 742: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 743: }
1.332 albertel 744: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 745: }
1.164 albertel 746: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 747: my $uri=$env{'request.uri'};
1.159 albertel 748: if ($uri=~/\.(\w+)$/) {
749: $Apache::lonhomework::type=$1;
750: &Apache::lonxml::debug("Using type of $1");
751: } else {
752: $Apache::lonhomework::type='problem';
753: &Apache::lonxml::debug("Using default type, problem, :$uri:");
754: }
1.87 albertel 755: }
1.301 albertel 756: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 757:
1.363 albertel 758: &initialize_storage();
1.389 albertel 759: if ($target ne 'analyze'
760: && $env{'request.state'} eq 'construct') {
761: &set_problem_state('0');
762: }
763:
1.366 albertel 764: if ($target eq 'web') {
765: &Apache::lonxml::debug(" grading history ");
766: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
767: }
1.363 albertel 768:
1.159 albertel 769: #added vars to the scripting enviroment
1.213 albertel 770: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 771: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 772: &Apache::run::run($expression,$safeeval);
1.159 albertel 773: my $status;
774: my $accessmsg;
775:
1.343 albertel 776: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 777: my ($result,$form_tag_start);
1.354 albertel 778: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
779: || $target eq 'edit') {
1.350 albertel 780: ($result,$form_tag_start) =
781: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
782: $name);
783: }
784:
1.284 albertel 785: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 786:
787: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
788: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
789: $target eq 'tex') {
790: #handle exam checkout
791: if ($Apache::lonhomework::type eq 'exam') {
792: my $token=
793: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 794: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 795: $token=&Apache::lonxml::maketoken();
796: $Apache::lonhomework::history{"resource.0.outtoken"}=
797: $token;
798: }
1.343 albertel 799: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 800: }
1.284 albertel 801: if ($env{'form.markaccess'}) {
1.252 albertel 802: &Apache::lonnet::set_first_access('map');
803: }
1.159 albertel 804: #handle rand seed in construction space
805: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 806: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 807: if ($env{'request.state'} ne "construct" &&
808: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 809: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
810: $rndseed.'" />'.
811: '<input type="submit" name="resetdata"
1.334 albertel 812: value="'.&mt('New Problem Variation').'" />';
813: if (exists($env{'form.username'})) {
814: $form_tag_start.=
1.164 albertel 815: '<input type="hidden" name="username"
1.284 albertel 816: value="'.$env{'form.username'}.'" />';
1.334 albertel 817: }
1.333 albertel 818: if ($env{'request.role.adv'}) {
1.267 albertel 819: $form_tag_start.=
1.300 albertel 820: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 821: if (defined($env{'form.showallfoils'})) {
1.267 albertel 822: $form_tag_start.='checked="on"';
823: }
1.300 albertel 824: $form_tag_start.= ' />'.&mt(' Show All Foils').
825: '</label>';
1.267 albertel 826: }
827: $form_tag_start.='<hr />';
1.162 albertel 828: }
1.324 albertel 829:
830: ($status,$accessmsg,my $slot_name,my $slot) =
831: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 832: push (@Apache::inputtags::status,$status);
1.324 albertel 833:
1.159 albertel 834: my $expression='$external::datestatus="'.$status.'";';
835: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
836: &Apache::run::run($expression,$safeeval);
837: &Apache::lonxml::debug("Got $status");
1.324 albertel 838:
1.159 albertel 839: if (( $status eq 'CLOSED' ) ||
840: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 841: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 842: ( $status eq 'BANNED') ||
1.216 albertel 843: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 844: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 845: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 846: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
847: $style);
1.159 albertel 848: if ( $target eq "web" ) {
1.343 albertel 849: my $msg;
1.159 albertel 850: if ($status eq 'UNAVAILABLE') {
1.245 albertel 851: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 852: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 853: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 854: }
1.216 albertel 855: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 856: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 857: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 858: $msg.=&checkout_msg();
1.252 albertel 859: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 860: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 861: } elsif ($status eq 'NOT_IN_A_SLOT') {
862: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 863: }
864: $result.=$msg.'<br />';
865: } elsif ($target eq 'tex') {
1.332 albertel 866: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
867: : '\begin{minipage}{\textwidth}';
868: $result.='\begin{document}\noindent \vskip 1 mm '.
869: $startminipage.'\vskip 0 mm';
1.159 albertel 870: if ($status eq 'UNAVAILABLE') {
1.211 albertel 871: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 872: } else {
1.211 albertel 873: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 874: }
875: }
1.324 albertel 876: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 877: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
878: $style);
1.324 albertel 879: if ($target eq 'web') {
1.375 albertel 880: $result .=
881: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 882: } elsif ($target eq 'grade') {
883: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
884: 'problem');
885: }
1.159 albertel 886: } elsif ($target eq 'web') {
1.360 albertel 887: if ($status eq 'CAN_ANSWER'
888: && $slot_name ne ''
889: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
890: # unproctored slot access, self checkin
891: &Apache::bridgetask::check_in('problem',undef,undef,
892: $slot_name);
893: }
1.368 albertel 894: $result.="\n $form_tag_start \t".
1.227 albertel 895: '<input type="hidden" name="submitted" value="yes" />';
896: # create a page header and exit
1.284 albertel 897: if ($env{'request.state'} eq "construct") {
898: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 899: }
900: # if we are viewing someone else preserve that info
1.284 albertel 901: if (defined $env{'form.grade_symb'}) {
1.227 albertel 902: foreach my $field ('symb','courseid','domain','username') {
903: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 904: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 905: }
906: }
907: } elsif ($target eq 'tex') {
1.319 foxr 908: $result .= 'INSERTTEXFRONTMATTERHERE';
909:
1.99 sakharuk 910: }
1.159 albertel 911: } elsif ($target eq 'edit') {
1.343 albertel 912: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 913: $Apache::lonxml::warnings_error_header=
914: &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 915: my $temp=&Apache::edit::insertlist($target,$token);
916: $result.=$temp;
917: } elsif ($target eq 'modified') {
918: $result=$token->[4];
919: } else {
920: # page_start returned a starting result, delete it if we don't need it
921: $result = '';
1.99 sakharuk 922: }
1.159 albertel 923: return $result;
1.9 albertel 924: }
925:
926: sub end_problem {
1.159 albertel 927: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 928: my $result;
1.310 foxr 929:
1.321 albertel 930: if (!$Apache::lonxml::metamode) {
931: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 932: $Apache::lonxml::post_evaluate=0;
1.321 albertel 933: }
1.319 foxr 934:
935: if ($target eq 'tex') {
1.321 albertel 936: # Figure out the front matter and replace the
937: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
938: # this in end_problem because whether or not we display due
939: # dates depends on whether due dates have already been
940: # displayed in the problem parts.
941:
1.319 foxr 942: my $frontmatter = '';
943: my $startminipage = '';
944: if (not $env{'form.problem_split'}=~/yes/) {
945: $startminipage = '\begin{minipage}{\textwidth}';
946: }
947: my $id = $Apache::inputtags::part;
948: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
949: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
950: my @packages = split /,/,$packages;
951: my $allow_print_points = 0;
952: foreach my $partial_key (@packages) {
953: if ($partial_key=~m/^part_0$/) {
954: $allow_print_points=1;
955: }
956: }
957: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
958: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
959: if (lc($env{'course.'.$env{'request.course.id'}.
960: '.disableexampointprint'}) eq 'yes') {
961: $allow_print_points=0;
962: }
963: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
964: my $begin_doc='\begin{document} \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
965: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
966: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
967:
968: # Figure out what the due date is and if we need to print
969: # it in the problem header. We have been logging the
970: # last due date written to file.
971:
972: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
973: my $duedate = POSIX::strftime("%c",localtime($duetime));
974: my $temp_file;
975: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
976:
977: # Figure out what the last printed due date is or set it
978: # to the epoch if no duedates have been printed.
979:
980: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
981: if (-e $filename) {
982: $temp_file = Apache::File->new($filename);
983: my @due_file = <$temp_file>;
984: $due_file_content = $due_file[$#due_file];
985: chomp $due_file_content;
986: }
987:
988: # We display the due date iff it is not the same as the last
989: # duedate in problem header ($due_file_content), and
990: # none of our parts displayed a duedate.
991: #
992: my $parts_with_displayduedate;
993: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
994: $parts_with_displayduedate =
995: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
996: } else {
997: $parts_with_displayduedate = 0;
998: }
999: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1000: $temp_file = Apache::File->new('>'.$filename);
1001: print $temp_file "$duetime\n";
1002: if (not $env{'request.symb'} =~ m/\.page_/) {
1003: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1004: $frontmatter .= $begin_doc.
1005: '\textit{Due date: '.$duedate.'} '.$toc_line;
1006: } else {
1007: $frontmatter.= $begin_doc.$toc_line;
1008: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1009: }
1010: } else {
1.381 albertel 1011: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 1012: }
1013: } else {
1014: if (not $env{'request.symb'} =~ m/\.page_/) {
1015: $frontmatter .= $begin_doc.$toc_line;
1016: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1017: } else {
1.381 albertel 1018: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1019: }
1020: }
1021: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1022: }
1023:
1.159 albertel 1024: my $status=$Apache::inputtags::status['-1'];
1025: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1026: $target eq 'tex') {
1.249 albertel 1027: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1028: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1029: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1030: &Apache::inputtags::grade;
1.324 albertel 1031: } elsif ($status eq 'NEEDS_CHECKIN') {
1032: # no need to grade, and don't want to hide data
1.249 albertel 1033: } else {
1034: # move any submission data to .hidden
1035: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1036: }
1.159 albertel 1037: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1038: $Apache::inputtags::part eq '0' &&
1.252 albertel 1039: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1040: # if part is zero, no <part>s existed, so we need show the current
1041: # grading status
1042: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1043: $result.= $gradestatus;
1044: }
1045: if (
1.284 albertel 1046: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1047: ($target eq 'answer') || ($target eq 'tex')
1048: ) {
1.227 albertel 1049: if ($target ne 'tex' &&
1.284 albertel 1050: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1051: $result.="</form>";
1.348 albertel 1052: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1053: }
1054: if ($target eq 'web') {
1.346 albertel 1055: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1056: } elsif ($target eq 'tex') {
1.178 sakharuk 1057: my $endminipage = '';
1.284 albertel 1058: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1059: $endminipage = '\end{minipage}';
1060: }
1.284 albertel 1061: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1062: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1063: } else {
1.262 sakharuk 1064: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1065: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1066: $result .= $endminipage.'\end{document} ';
1067: } else {
1.382 albertel 1068: $result .= $endminipage;
1.262 sakharuk 1069: }
1.159 albertel 1070: }
1071: }
1072: }
1073: if ($target eq 'grade') {
1074: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1075: &finalize_storage();
1076: }
1.284 albertel 1077: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1078: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1079: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1080: # normally we get it from above, but in CSTR
1.172 albertel 1081: # we always show answer mode too.
1.159 albertel 1082: }
1083: } elsif ($target eq 'meta') {
1084: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1085: @Apache::inputtags::response=();
1.159 albertel 1086: $result=&Apache::response::mandatory_part_meta;
1087: }
1.215 albertel 1088: $result.=&Apache::response::meta_part_order();
1.258 albertel 1089: $result.=&Apache::response::meta_response_order();
1.159 albertel 1090: } elsif ($target eq 'edit') {
1091: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1092: $result .= &problem_edit_footer();
1.320 albertel 1093: } elsif ($target eq 'modified') {
1094: $result .= $token->[2];
1.159 albertel 1095: }
1.155 albertel 1096:
1.284 albertel 1097: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1098: &Apache::inputtags::check_for_duplicate_ids();
1099: }
1.204 albertel 1100:
1101: &reset_problem_globals('problem');
1.159 albertel 1102:
1103: return $result;
1.48 albertel 1104: }
1105:
1.108 albertel 1106:
1.48 albertel 1107: sub start_library {
1.159 albertel 1108: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1109: my ($result,$form_tag_start);
1.371 albertel 1110: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1111: &init_problem_globals('library');
1112: $Apache::lonhomework::type='problem';
1113: }
1.159 albertel 1114: if ($target eq 'edit') {
1.343 albertel 1115: ($result,$form_tag_start)=
1116: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1117: 'Edit');
1118: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1119: my $temp=&Apache::edit::insertlist($target,$token);
1120: $result.=$temp;
1121: } elsif ($target eq 'modified') {
1122: $result=$token->[4];
1.340 albertel 1123: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1124: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1125: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1126: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1127: ($result,$form_tag_start)=
1128: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1129: $name);
1.159 albertel 1130: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1131: $result.=" \n $form_tag_start".
1.159 albertel 1132: '<input type="hidden" name="submitted" value="yes" />';
1133: $result.=&problem_web_to_edit_header($rndseed);
1134: }
1135: return $result;
1.48 albertel 1136: }
1137:
1138: sub end_library {
1.159 albertel 1139: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1140: my $result='';
1141: if ($target eq 'edit') {
1142: $result=&problem_edit_footer();
1.371 albertel 1143: } elsif ($target eq 'web'
1144: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1145: && $env{'request.state'} eq "construct") {
1.349 albertel 1146: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1147: }
1.371 albertel 1148: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1149: &reset_problem_globals('library');
1150: }
1.159 albertel 1151: return $result;
1.197 www 1152: }
1153:
1154: sub start_definetag {
1.326 albertel 1155: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1156:
1157: my $result;
1158:
1159: my $name = $token->[2]->{'name'};
1.326 albertel 1160: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1161: if ($target eq 'web') {
1162: if ($name=~/^\//) {
1163: $result=
1164: '<br /><table class="LC_sty_end"><tr><th>'.
1165: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1166: } else {
1167: $result=
1168: '<br /><table class="LC_sty_begin"><tr><th>'.
1169: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1170: }
1171: $skip = &HTML::Entities::encode($skip, '<>&"');
1172: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1173: }
1174: return $result;
1175: }
1176:
1177: sub end_definetag {
1178: return '';
1.1 albertel 1179: }
1180:
1181: sub start_block {
1.201 albertel 1182: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1183:
1184: my $result;
1.1 albertel 1185:
1.339 albertel 1186: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1187: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1188: my $code = $token->[2]->{'condition'};
1.385 albertel 1189: if (defined($code) && $code ne '') {
1.137 albertel 1190: if (!$Apache::lonxml::default_homework_loaded) {
1191: &Apache::lonxml::default_homework_load($safeeval);
1192: }
1.131 albertel 1193: $result = &Apache::run::run($code,$safeeval);
1194: &Apache::lonxml::debug("block :$code: returned :$result:");
1195: } else {
1196: $result='1';
1197: }
1198: if ( ! $result ) {
1.201 albertel 1199: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1200: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1201: }
1202: $result='';
1203: } elsif ($target eq 'edit') {
1204: $result .=&Apache::edit::tag_start($target,$token);
1205: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1206: $token,40);
1207: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1208: } elsif ($target eq 'modified') {
1209: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1210: $safeeval,'condition');
1211: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1212: }
1.131 albertel 1213: return $result;
1.1 albertel 1214: }
1215:
1216: sub end_block {
1.167 www 1217: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1218: my $result;
1219: if ($target eq "edit") {
1220: $result.= &Apache::edit::tag_end($target,$token,'');
1221: }
1222: return $result;
1223: }
1224:
1225: sub start_languageblock {
1.201 albertel 1226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1227:
1228: my $result;
1229:
1.339 albertel 1230: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1231: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1232: my $include = $token->[2]->{'include'};
1233: my $exclude = $token->[2]->{'exclude'};
1.398 www 1234: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1235: # This should not even happen, since we should at least have the server language
1.398 www 1236: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1237: # Now loop over all languages in order of preference
1238: foreach my $preferred_language (@preferred_languages) {
1.394 www 1239: # If the languageblock has no arguments, show the contents
1.399 www 1240: $result=1;
1241: my $found=0;
1.394 www 1242: # Do we have an include argument?
1.398 www 1243: if ($include) {
1.394 www 1244: # If include is specified, by default, don't render the block
1.399 www 1245: $result=0;
1.398 www 1246: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1247: # ... but if my preferred language is included, render it
1.398 www 1248: if ($included_language eq $preferred_language) {
1.399 www 1249: $result=1;
1250: $found=1;
1.398 www 1251: }
1252: }
1253: }
1.394 www 1254: # Do we have an exclude argument?
1.398 www 1255: if ($exclude) {
1.399 www 1256: $result=1;
1.398 www 1257: foreach my $excluded_language (split(/\,/,$exclude)) {
1258: if ($excluded_language eq $preferred_language) {
1.399 www 1259: $result=0;
1260: $found=1;
1.398 www 1261: }
1262: }
1263: }
1.399 www 1264: if ($found) { last; }
1.398 www 1265: }
1.201 albertel 1266: if ( ! $result ) {
1267: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1268: $style);
1269: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1270: }
1271: $result='';
1.167 www 1272: } elsif ($target eq 'edit') {
1273: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1274: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1275: $token,40);
1.211 albertel 1276: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1277: $token,40);
1278: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1279: } elsif ($target eq 'modified') {
1280: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1281: $safeeval,'include',
1282: 'exclude');
1.167 www 1283: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1284: }
1285: return $result;
1286: }
1287:
1288: sub end_languageblock {
1.170 www 1289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1290: my $result;
1.201 albertel 1291: if ($target eq "edit") {
1.170 www 1292: $result.= &Apache::edit::tag_end($target,$token,'');
1293: }
1294: return $result;
1295: }
1296:
1.397 albertel 1297: {
1298: my %available_texts;
1299: sub start_translated {
1300: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1301: &Apache::lonxml::register('Apache::structuretags',('lang'));
1302: undef(%available_texts);
1303: }
1304:
1305: sub end_translated {
1306: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1307: my $result;
1308: #show the translation on viewable targets
1309: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1310: # or non-viewable targets, if it's embedded in something that
1311: # wants the output
1312: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1313: && &Apache::lonxml::in_redirection() ) ) {
1314: my @possibilities = keys(%available_texts);
1315: my $which =
1316: &Apache::loncommon::languages(\@possibilities) || 'default';
1317: $result = $available_texts{$which};
1318: }
1319: undef(%available_texts);
1320: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1321: return $result;
1322: }
1323:
1324:
1325: sub start_lang {
1326: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1327: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1328: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1329: &Apache::lonxml::startredirection();
1330: }
1331: return '';
1332: }
1333:
1334: sub end_lang {
1335: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1336: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1337: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1338: my $result = &Apache::lonxml::endredirection();
1339: my $which = &Apache::lonxml::get_param('which',$parstack,
1340: $safeeval);
1341: $available_texts{$which} = $result;
1342: }
1343: return '';
1344: }
1345: }
1346:
1.170 www 1347: sub start_instructorcomment {
1.201 albertel 1348: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1349:
1350: my $result;
1351:
1.339 albertel 1352: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1353: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1354: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1355: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1356: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1357: $parser,$style);
1.170 www 1358: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1359: }
1360: $result='';
1361: } elsif ($target eq 'edit') {
1362: $result .=&Apache::edit::tag_start($target,$token);
1363: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1364: }
1365: return $result;
1366: }
1367:
1368: sub end_instructorcomment {
1.159 albertel 1369: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1370: my $result;
1371: if ($target eq "edit") {
1372: $result.= &Apache::edit::tag_end($target,$token,'');
1373: }
1374: return $result;
1.4 tsai 1375: }
1376:
1377: sub start_while {
1.326 albertel 1378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1379:
1.160 albertel 1380: my $result;
1.339 albertel 1381: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1382: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1383: my $code = $token->[2]->{'condition'};
1.4 tsai 1384:
1.160 albertel 1385: push( @Apache::structuretags::whileconds, $code);
1386: if (!$Apache::lonxml::default_homework_loaded) {
1387: &Apache::lonxml::default_homework_load($safeeval);
1388: }
1389: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1390: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1391: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1392: push( @Apache::structuretags::whileline, $token->[5]);
1393: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1394: if ( $result ) {
1395: &Apache::lonxml::newparser($parser,\$bodytext);
1396: }
1397: } elsif ($target eq 'edit') {
1398: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1399: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1400: $token,40);
1401: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1402: } elsif ($target eq 'modified') {
1403: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1404: $safeeval,'condition');
1405: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1406: }
1.160 albertel 1407: return $result;
1.4 tsai 1408: }
1409:
1410: sub end_while {
1.159 albertel 1411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1412: my $result;
1413:
1.339 albertel 1414: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1415: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1416: my $code = pop(@Apache::structuretags::whileconds);
1417: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1418: my $line = pop(@Apache::structuretags::whileline);
1419: my $return = &Apache::run::run($code,$safeeval);
1420: my $starttime=time;
1421: my $error=0;
1422: while ($return) {
1423: if (time-$starttime >
1424: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1425: $return = 0; $error=1; next;
1.161 albertel 1426: }
1427: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1428: if ($target eq 'grade' || $target eq 'answer' ||
1429: $target eq 'analyze') {
1430: # grade/answer/analyze should produce no output but if we
1431: # are redirecting, the redirecter should know what to do
1432: # with the output
1433: if (!$Apache::lonxml::redirection) { undef($result); }
1434: }
1.161 albertel 1435: $return = &Apache::run::run($code,$safeeval);
1436: }
1437: if ($error) {
1.270 albertel 1438: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occured while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1439: }
1440: } elsif ($target eq "edit") {
1441: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1442: }
1.160 albertel 1443: return $result;
1.1 albertel 1444: }
1.6 tsai 1445:
1.160 albertel 1446: # <randomlist show="1">
1.6 tsai 1447: # <tag1>..</tag1>
1448: # <tag2>..</tag2>
1449: # <tag3>..</tag3>
1.160 albertel 1450: # ...
1.6 tsai 1451: # </randomlist>
1452: sub start_randomlist {
1.326 albertel 1453: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1454: my $result;
1.339 albertel 1455: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1457: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1458: my $b_parser= HTML::LCParser->new(\$body);
1459: $b_parser->xml_mode(1);
1460: $b_parser->marked_sections(1);
1.159 albertel 1461: my $b_tok;
1462: my @randomlist;
1463: my $list_item;
1464: while($b_tok = $b_parser->get_token() ) {
1465: if($b_tok->[0] eq 'S') { # start tag
1466: # get content of the tag until matching end tag
1467: # get all text upto the matching tag
1468: # and push the content into @randomlist
1469: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1470: $b_parser);
1471: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1472: push(@randomlist,$list_item);
1473: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1474: # $list_item</b>";
1475: }
1476: if($b_tok->[0] eq 'T') { # text
1477: # what to do with text in between tags?
1478: # print "<b>TEXT $b_tok->[1]</b><br />";
1479: }
1480: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1481: # print "<b>END-TAG $b_tok->[1]</b><br />";
1482: # }
1483: }
1.303 albertel 1484: if (@randomlist) {
1485: my @idx_arr = (0 .. $#randomlist);
1486: &Apache::structuretags::shuffle(\@idx_arr);
1487: my $bodytext = '';
1488: my $show=$#randomlist;
1489: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1490: $showarg--;
1491: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1492: for(0 .. $show) {
1493: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1494: }
1495: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1496: }
1497: } elsif ($target eq 'edit' ) {
1498: $result .=&Apache::edit::tag_start($target,$token);
1499: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1500: $token,5);
1501: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1502: } elsif ($target eq 'modified' ) {
1503: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1504: $safeeval,'show');
1505: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1506: }
1507: return $result;
1.7 tsai 1508: }
1509:
1510: sub shuffle {
1511: my $a=shift;
1512: my $i;
1.303 albertel 1513: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1514: &Apache::response::pushrandomnumber();
1.159 albertel 1515: for($i=@$a;--$i;) {
1516: my $j=int(&Math::Random::random_uniform() * ($i+1));
1517: next if $i == $j;
1518: @$a[$i,$j] = @$a[$j,$i];
1519: }
1.251 albertel 1520: &Apache::response::poprandomnumber();
1.7 tsai 1521: }
1.6 tsai 1522: }
1523:
1524: sub end_randomlist {
1.159 albertel 1525: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1526: my $result;
1527: if ($target eq 'edit' ) {
1528: $result=&Apache::edit::tag_end($target,$token,
1529: 'End Randomly Parsed Block');
1530: }
1531: return $result;
1.6 tsai 1532: }
1533:
1.283 albertel 1534: sub ordered_show_check {
1535: my $last_part=$Apache::inputtags::partlist[-2];
1536: my $in_order=
1537: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1538: my $in_order_show=1;
1539: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1540: $in_order_show=&Apache::response::check_status($last_part);
1541: }
1542: return $in_order_show;
1543: }
1544:
1.11 albertel 1545: sub start_part {
1.326 albertel 1546: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1547: if (!$Apache::lonxml::metamode) {
1548: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1549: # duedates.
1550: }
1.159 albertel 1551: my $result='';
1.386 albertel 1552: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1553: $Apache::inputtags::part=$id;
1.177 albertel 1554: push(@Apache::inputtags::partlist,$id);
1555: @Apache::inputtags::response=();
1.159 albertel 1556: @Apache::inputtags::previous=();
1557: @Apache::inputtags::previous_version=();
1.405 albertel 1558: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1559: &Apache::response::reset_params();
1560:
1.159 albertel 1561: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1562: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1563: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1564: my $in_order_show=&ordered_show_check();
1.214 albertel 1565: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1566: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1567: &Apache::run::run($expression,$safeeval);
1.159 albertel 1568:
1569: if ($target eq 'meta') {
1.224 www 1570: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1571: return &Apache::response::mandatory_part_meta.
1572: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1573: } elsif ($target eq 'web' || $target eq 'grade' ||
1574: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1575: if ($hidden || !$in_order_show) {
1.326 albertel 1576: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1577: } else {
1578: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1579: push (@Apache::inputtags::status,$status);
1580: my $expression='$external::datestatus="'.$status.'";';
1581: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1582: &Apache::run::run($expression,$safeeval);
1.284 albertel 1583: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1584: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1585: }
1.216 albertel 1586: if (( $status eq 'CLOSED' ) ||
1587: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1588: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1589: ( $status eq 'BANNED') ||
1590: ( $status eq 'UNAVAILABLE') ||
1591: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1592: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1593: $style);
1.159 albertel 1594: if ( $target eq "web" ) {
1.211 albertel 1595: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1596: } elsif ( $target eq 'tex' ) {
1.284 albertel 1597: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1598: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1599: } else {
1.211 albertel 1600: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1601: }
1.159 albertel 1602: }
1603: } else {
1604: if ($target eq 'tex') {
1.284 albertel 1605: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1606: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1607: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1608: } else {
1609: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1610: }
1.195 sakharuk 1611: }
1.159 albertel 1612: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1613: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1614: my @allkeys = split /,/,$allkeys;
1615: my $allow_print_points = 0;
1616: foreach my $partial_key (@allkeys) {
1.230 albertel 1617: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1618: if ($1 ne '0') {$allow_print_points=1;}
1619: }
1620: }
1.275 albertel 1621: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1622: if (defined($maxtries) && $maxtries < 0) {
1623: $allow_print_points=0;
1624: }
1.302 albertel 1625: if (lc($env{'course.'.$env{'request.course.id'}.
1626: '.disableexampointprint'}) eq 'yes') {
1627: $allow_print_points=0;
1628: }
1.222 sakharuk 1629: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1630: } elsif ($target eq 'web') {
1.356 www 1631: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1632: }
1633: }
1634: }
1635: } elsif ($target eq 'edit') {
1636: $result.=&Apache::edit::tag_start($target,$token);
1637: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1638: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1639: ' '.
1640: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1641: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1642: } elsif ($target eq 'modified') {
1643: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1644: $safeeval,'id','display');
1.159 albertel 1645: if ($constructtag) {
1.225 albertel 1646: #limiting ids to only letters numbers, and space
1.224 www 1647: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1648: $result = &Apache::edit::rebuild_tag($token);
1649: }
1650: }
1651: return $result;
1.11 albertel 1652: }
1653:
1654: sub end_part {
1.159 albertel 1655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1656: &Apache::lonxml::debug("in end_part $target ");
1657: my $status=$Apache::inputtags::status['-1'];
1658: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1659: my $in_order_show=&ordered_show_check();
1.321 albertel 1660: my $result;
1661: if (!$Apache::lonxml::metamode) {
1662: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1663: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1664: }
1.312 albertel 1665: if ($target eq 'grade') {
1.249 albertel 1666: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1667: !$hidden && $in_order_show) {
1.311 foxr 1668: $result.=&Apache::inputtags::grade;
1.249 albertel 1669: } else {
1670: # move any submission data to .hidden
1671: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1672: }
1.283 albertel 1673: } elsif (($target eq 'web' || $target eq 'tex') &&
1674: !$hidden && $in_order_show) {
1.159 albertel 1675: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1676: $target);
1.212 albertel 1677: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1678: $gradestatus='';
1679: }
1.311 foxr 1680: $result.=$gradestatus;
1.265 sakharuk 1681: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1682: } elsif ($target eq 'edit') {
1.311 foxr 1683: $result.=&Apache::edit::end_table();
1.322 albertel 1684: } elsif ($target eq 'modified') {
1685: $result .= $token->[2];
1.159 albertel 1686: }
1687: pop @Apache::inputtags::status;
1688: $Apache::inputtags::part='';
1.295 albertel 1689: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1690: return $result;
1.11 albertel 1691: }
1.1 albertel 1692:
1.25 albertel 1693: sub start_preduedate {
1.326 albertel 1694: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1695: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1696: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1697: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1698: if (!$Apache::lonhomework::scantronmode &&
1699: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1700: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1701: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1702: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1703: }
1.24 albertel 1704: }
1.159 albertel 1705: return '';
1.24 albertel 1706: }
1707:
1.25 albertel 1708: sub end_preduedate {
1.159 albertel 1709: return '';
1.24 albertel 1710: }
1711:
1.369 foxr 1712: # In all the modes where <postanswerdate> text is
1713: # displayable, all we do is eat up the text between the start/stop
1714: # tags if the conditions are not right to display it.
1.25 albertel 1715: sub start_postanswerdate {
1.326 albertel 1716: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1717: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1718: &Apache::lonnet::allowed('pav',
1719: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1720: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1721: $target eq 'tex' ) {
1.300 albertel 1722: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1723: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1724: (($target eq 'tex') && !$pav)) {
1.326 albertel 1725: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1726: }
1727: }
1728: return '';
1.24 albertel 1729: }
1730:
1.25 albertel 1731: sub end_postanswerdate {
1.159 albertel 1732: return '';
1.24 albertel 1733: }
1734:
1.25 albertel 1735: sub start_notsolved {
1.326 albertel 1736: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1737: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1738: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1739: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1740: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1741: if ($gradestatus =~ /^correct/ &&
1742: &Apache::response::show_answer()) {
1.159 albertel 1743: &Apache::lonxml::debug("skipping");
1.326 albertel 1744: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1745: }
1.24 albertel 1746: }
1.159 albertel 1747: return '';
1.24 albertel 1748: }
1749:
1.25 albertel 1750: sub end_notsolved {
1.159 albertel 1751: return '';
1.24 albertel 1752: }
1753:
1754: sub start_solved {
1.326 albertel 1755: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1756: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1757: $target eq 'tex') {
1758: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1759: if ($gradestatus !~ /^correct/ ||
1760: !&Apache::response::show_answer()) {
1.326 albertel 1761: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1762: }
1.24 albertel 1763: }
1.159 albertel 1764: return '';
1.24 albertel 1765: }
1766:
1767: sub end_solved {
1.248 albertel 1768: return '';
1769: }
1770:
1771: sub start_problemtype {
1.326 albertel 1772: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1773: my $result;
1.339 albertel 1774: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1775: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1776: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1777: if (!defined($mode)) { $mode='show'; }
1778: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1779: my $found=0;
1780: foreach my $type (split(',',$for)) {
1781: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1782: }
1783: if ($mode eq 'show' && !$found) {
1.326 albertel 1784: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1785: }
1786: if ($mode eq 'hide' && $found) {
1.326 albertel 1787: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1788: }
1789: } elsif ($target eq 'edit') {
1790: $result .=&Apache::edit::tag_start($target,$token);
1791: $result.=&Apache::edit::select_arg('Mode:','mode',
1792: [['show','Show'],
1793: ['hide','Hide']]
1794: ,$token);
1795: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1796: [ ['exam','Exam/Quiz Problem'],
1797: ['survey','Survey'],
1798: ['problem','Homework Problem'] ]
1799: ,$token);
1800: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1801: } elsif ($target eq 'modified') {
1802: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1803: $safeeval,'mode','for');
1804: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1805: }
1806: return $result;
1807: }
1808:
1809: sub end_problemtype {
1.159 albertel 1810: return '';
1.24 albertel 1811: }
1.34 albertel 1812:
1813: sub start_startouttext {
1.159 albertel 1814: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1815: my @result=(''.'');
1816: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1817:
1818: my $nesting =
1819: &Apache::lonxml::set_state('outtext',
1820: &Apache::lonxml::get_state('outtext')+1);
1821: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1822: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1823: }
1.159 albertel 1824: return (@result);
1.34 albertel 1825: }
1.159 albertel 1826:
1.34 albertel 1827: sub end_startouttext {
1.326 albertel 1828: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1829: my $result='';
1830: my $text='';
1831:
1832: if ($target eq 'edit') {
1.326 albertel 1833: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1834: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1835: <td>".&mt('Delete:').
1.159 albertel 1836: &Apache::edit::deletelist($target,$token)
1837: ."</td>
1.42 albertel 1838: <td>".
1.159 albertel 1839: &Apache::edit::insertlist($target,$token).
1.362 albertel 1840: '</td><td align="right" valign="top">' .
1841: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1842: &Apache::edit::end_row().
1.362 albertel 1843: &Apache::edit::start_spanning_row()."\n".
1.255 www 1844: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1845: }
1846: if ($target eq 'modified') {
1.219 albertel 1847: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1848: }
1849: if ($target eq 'tex') {
1850: $result .= '\noindent ';
1851: }
1852: return $result;
1.34 albertel 1853: }
1.159 albertel 1854:
1.34 albertel 1855: sub start_endouttext {
1.159 albertel 1856: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1857: my $result='';
1858: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1859: if ($target eq "modified") {
1860: $result='<endouttext />'.
1.377 albertel 1861: &Apache::edit::handle_insertafter('startouttext');
1862: }
1.404 albertel 1863:
1864: my $nesting =
1865: &Apache::lonxml::set_state('outtext',
1866: &Apache::lonxml::get_state('outtext')-1);
1867: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1868: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1869: &Apache::lonxml::set_state('outtext', 0);
1870: }
1.159 albertel 1871: return $result;
1.34 albertel 1872: }
1.159 albertel 1873:
1.34 albertel 1874: sub end_endouttext {
1.159 albertel 1875: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1876: my @result=('','');
1877: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1878: return (@result);
1.34 albertel 1879: }
1.159 albertel 1880:
1.45 albertel 1881: sub delete_startouttext {
1.326 albertel 1882: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1883: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1884: my $text=$$parser['-1']->get_text("/endouttext");
1885: my $ntoken=$$parser['-1']->get_token();
1886: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1887: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1888: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1889: # they did the last time round
1890: &Apache::lonxml::increasedepth($ntoken);
1891: &Apache::lonxml::decreasedepth($ntoken);
1892: return 1;
1.193 www 1893: }
1894:
1895: sub start_simpleeditbutton {
1896: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1897: my $result='';
1.284 albertel 1898: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1899: ($target eq 'web') &&
1.330 albertel 1900: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1901: my $url=$env{'request.noversionuri'};
1.193 www 1902: $url=~s/\?.*$//;
1.367 albertel 1903: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1904: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1905: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'.&mt('Edit').'</a> - '.&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
1.196 www 1906: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1907: }
1908: return $result;
1909: }
1910:
1911: sub end_simpleeditbutton {
1912: return '';
1.45 albertel 1913: }
1.34 albertel 1914:
1.1 albertel 1915: 1;
1916: __END__
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