Annotation of loncom/homework/structuretags.pm, revision 1.413
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.413 ! albertel 4: # $Id: structuretags.pm,v 1.412 2007/11/13 23:05:32 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="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" />
332: <input '.&Apache::edit::submit_ask_anyway().' type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />
333: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
334: </div>
335: <div class="LC_edit_problem_saves">
336: <input type="submit" name="submit" value="'.&mt('Save and Edit').'" />
337: <input type="submit" name="submit" value="'.&mt('Save and View').'" />
338: </div>
339: <hr class="LC_edit_problem_divide" />
340: </div>
341: '.
342:
1.348 albertel 343: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 344: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 345: }
346:
1.235 albertel 347: sub option {
348: my ($value,$name) = @_;
349: my $result ="<option value='".$value."' ";
1.284 albertel 350: if ($env{'form.'.$name} eq $value) {
1.235 albertel 351: $result.=" selected='on' ";
352: }
353: $result.='>';
354: return $result;
355: }
356:
1.105 albertel 357: sub problem_web_to_edit_header {
1.159 albertel 358: my ($rndseed)=@_;
1.406 albertel 359: my $result .= '<div class="LC_edit_problem_header">';
360:
361: if (!$Apache::lonhomework::parsing_a_task) {
362: $result .=
363: '<div class="LC_edit_problem_header_title">'.
364: &mt('Problem Testing').
365: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
366: '</div>';
367: } else {
368: $result .=
369: '<div class="LC_edit_problem_header_title">'.
370: &mt('Task Testing').
371: '</div>';
372: }
373:
1.315 albertel 374: my $show_all_foils_text =
375: ($Apache::lonhomework::parsing_a_task) ?
376: &mt(' Show All Instances')
377: : &mt(' Show All Foils');
378:
1.406 albertel 379: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
380: if (defined($env{'form.showallfoils'})) { $show_all.='checked="checked"'; }
381: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
382:
383:
1.384 albertel 384:
1.406 albertel 385: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 386: if (!$Apache::lonhomework::parsing_a_task) {
387: $result.="
1.406 albertel 388: <div class='LC_edit_problem_header_row1'>
389: <span class=\"LC_nobreak\">
1.405 albertel 390: ".&mt("Problem Status:")."
1.235 albertel 391: <select name='problemstate'>
1.270 albertel 392: <option value=''></option>
1.235 albertel 393: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
394: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
395: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
396: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
397: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
398: </select>
1.406 albertel 399: </span>
400: <span class=\"LC_nobreak\">
1.405 albertel 401: ".&mt("Problem Type:")."
1.235 albertel 402: <select name='problemtype'>
1.270 albertel 403: <option value=''></option>
1.242 albertel 404: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
405: ".&option('problem','problemtype').&mt("Homework problem")."</option>
406: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.235 albertel 407: </select>
1.406 albertel 408: </span>
409: $show_all
410: </div>
411: <div class='LC_edit_problem_header_row2'>
412: <span class=\"LC_nobreak\">
1.405 albertel 413: ".&mt("Feedback Mode:")."
1.235 albertel 414: <select name='problemstatus'>
415: <option value=''></option>
1.242 albertel 416: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 417: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
418: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 419: </select>
1.406 albertel 420: </span>
421: ";
422:
1.376 albertel 423: } elsif ($Apache::lonhomework::parsing_a_task) {
424: $result.="
1.406 albertel 425: <div class='LC_edit_problem_header_row1'>
426: <span class=\"LC_nobreak\">
1.405 albertel 427: ".&mt("Problem Status:")."
1.376 albertel 428: <select name='problemstate'>
429: <option value=''></option>
430: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
431: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
432: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
433: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
434: </select>
1.406 albertel 435: </span>
436: $show_all
437: ";
438: }
439:
440: $result.='
441: <span class="LC_nobreak">
442: '.&mt('Apply style file: ').'
443: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
444: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
445: </span>
446: </div>
447: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
448: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
449: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
450: </div>
451: <hr class="LC_edit_problem_divide" />
452: <div class="LC_edit_problem_header_randomize_row">
453: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
454: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
455: <input type="text" name="rndseed" size="10" value="'.
456: $rndseed.'"
457: onchange="javascript:document.lonhomework.changerandseed.click()" />';
458:
459: if (!$Apache::lonhomework::parsing_a_task) {
460: my $numtoanalyze=$env{'form.numtoanalyze'};
461: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 462: $result .= '<span class="LC_nobreak">'.
463: &mt('[_1] for [_2] versions.',
464: '<input type="submit" name="problemmode" value='.&mt('"Calculate answers').'" />',
465: '<input type="text" name="numtoanalyze" value="'.
466: $numtoanalyze.'" size="5" />').
467: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
468: '</span>';
469:
1.313 albertel 470: }
1.406 albertel 471:
472: $result.='
473: </div>
1.408 albertel 474: <div class="LC_edit_problem_header_edit_row">';
475: $result.='<input type="hidden" name="problemmode" value="'.&mt('View').'" />';
476: $result .= '<input type="submit" name="problemmode" accesskey="e" value="'.&mt('Edit').'" />';
477: $result .= '<input type="submit" name="problemmode" accesskey="x" value="'.&mt('EditXML').'" />';
478: $result.='
479: </div>
1.409 albertel 480: '.&Apache::lonxml::message_location().'
1.406 albertel 481: </div>';
1.159 albertel 482: return $result;
1.48 albertel 483: }
484:
1.65 albertel 485: sub initialize_storage {
1.357 albertel 486: my ($given_symb) = @_;
1.353 albertel 487: undef(%Apache::lonhomework::results);
488: undef(%Apache::lonhomework::history);
1.357 albertel 489: my ($symb,$courseid,$domain,$name) =
1.367 albertel 490: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 491:
492: # anonymous users (CODEd exams) have no data
493: if ($name eq 'anonymous'
494: && !defined($domain)) {
495: return;
496: }
497:
1.333 albertel 498: if ($env{'request.state'} eq 'construct'
499: || $symb eq ''
500: || $Apache::lonhomework::type eq 'practice') {
501:
502: my $namespace = $symb || $env{'request.uri'};
503: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 504: ($env{'form.resetdata'} eq &mt('New Problem Variation')
505: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 506: $env{'form.newrandomization'} eq &mt('New Randomization')) {
507: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
508: &Apache::lonxml::debug("Attempt reset");
509: }
1.159 albertel 510: %Apache::lonhomework::history=
1.333 albertel 511: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 512: my ($temp)=keys %Apache::lonhomework::history ;
513: &Apache::lonxml::debug("Return message of $temp");
514: } else {
515: %Apache::lonhomework::history=
516: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
517: }
1.353 albertel 518:
1.159 albertel 519: #ignore error conditions
1.67 albertel 520: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 521: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 522: }
523:
524: # -------------------------------------------------------------finalize_storage
525: # Stores away the result has to a student's environment
526: # checks form.grade_ for specific values, other wises stores
527: # to the running users environment
1.285 raeburn 528: # Will increment totals for attempts, students, and corrects
529: # if running user has student role.
1.65 albertel 530: sub finalize_storage {
1.357 albertel 531: my ($given_symb) = @_;
1.159 albertel 532: my $result;
1.289 albertel 533: if (%Apache::lonhomework::results) {
1.323 albertel 534: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
535: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 536: my ($symb,$courseid,$domain,$name) =
1.367 albertel 537: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 538: if ($env{'request.state'} eq 'construct'
539: || $symb eq ''
540: || $Apache::lonhomework::type eq 'practice') {
541: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 542: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 543: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 544: $namespace,'',$domain,$name);
1.159 albertel 545: &Apache::lonxml::debug('Construct Store return message:'.$result);
546: } else {
547: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
548: $symb,$courseid,$domain,$name);
549: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 550: if ($env{'request.role'} =~/^st/) {
551: &store_aggregates($symb,$courseid);
552: }
1.159 albertel 553: }
1.323 albertel 554: } else {
555: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 556: }
1.159 albertel 557: return $result;
1.65 albertel 558: }
559:
1.285 raeburn 560: # -------------------------------------------------------------store_aggregates
561: # Sends hash of values to be incremented in nohist_resourcetracker.db
562: # for the course. Increments total number of attempts, unique students
563: # and corrects for each part for an instance of a problem, as appropriate.
564: sub store_aggregates {
565: my ($symb,$courseid) = @_;
1.286 albertel 566: my %aggregate;
567: my @parts;
1.288 albertel 568: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
569: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 570: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 571: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 572: push(@parts, $1);
1.285 raeburn 573: }
574: }
1.286 albertel 575: foreach my $part (@parts) {
576: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
577: eq 'APPROX_ANS' ||
578: $Apache::lonhomework::results{'resource.'.$part.'.award'}
579: eq 'EXACT_ANS') {
1.287 albertel 580: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 581: }
1.286 albertel 582: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 583: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 584: } else {
1.293 albertel 585: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 586: if ($last_reset) {
1.293 albertel 587: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 588: $aggregate{$symb."\0".$part."\0users"} = 1;
589: }
590: }
1.285 raeburn 591: }
1.287 albertel 592: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 593: }
1.292 raeburn 594: if (keys (%aggregate) > 0) {
1.289 albertel 595: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 596: $cdomain,$cname);
597: }
598: }
1.289 albertel 599:
1.65 albertel 600: sub checkout_msg {
1.211 albertel 601: my %lt=&Apache::lonlocal::texthash(
602: 'resource'=>'The resource needs to be checked out',
603: '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.',
604: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
605: 'checkout'=>'Check out Exam for Viewing',
606: 'checkout?'=>'Check out Exam?');
1.352 albertel 607: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 608: return (<<ENDCHECKOUT);
1.211 albertel 609: <h2>$lt{'resource'}</h2>
610: <p>$lt{'id_expln'}</p>
611: <font color="red">
612: <p>$lt{'warning'}</p>
1.91 albertel 613: </font>
1.352 albertel 614: <form name="checkout" method="POST" action="$uri">
1.91 albertel 615: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 616: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 617: </form>
618: ENDCHECKOUT
619: }
620:
1.252 albertel 621: sub firstaccess_msg {
1.253 albertel 622: my ($time,$symb)=@_;
623: my ($map)=&Apache::lonnet::decode_symb($symb);
624: my $foldertitle=&Apache::lonnet::gettitle($map);
625: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.352 albertel 626: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.252 albertel 627: return (<<ENDCHECKOUT);
1.253 albertel 628: <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 629: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 630: <input type="hidden" name="markaccess" value="yes" />
631: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
632: </form>
633: ENDCHECKOUT
634: }
635:
1.204 albertel 636: sub init_problem_globals {
637: my ($type)=@_;
638: #initialize globals
1.308 foxr 639: # For problems, we start out in part 0 (outside a <part> tag).
640: # and part 0 is used to describe the main body of the <problem>
641: #
1.204 albertel 642: if ($type eq 'problem') {
643: $Apache::inputtags::part='0';
644: @Apache::inputtags::partlist=('0');
1.405 albertel 645: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 646: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 647:
1.266 albertel 648: } elsif ($type eq 'library') {
1.204 albertel 649: $Apache::inputtags::part='';
650: @Apache::inputtags::partlist=();
1.405 albertel 651: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 652: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 653:
1.304 albertel 654: } elsif ($type eq 'Task') {
655: $Apache::inputtags::part='0';
656: @Apache::inputtags::partlist=('0');
1.405 albertel 657: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 658: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 659: }
660: @Apache::inputtags::responselist = ();
661: @Apache::inputtags::importlist = ();
662: @Apache::inputtags::previous=();
663: @Apache::inputtags::previous_version=();
664: $Apache::structuretags::printanswer='No';
665: @Apache::structuretags::whileconds=();
666: @Apache::structuretags::whilebody=();
667: @Apache::structuretags::whileline=();
668: $Apache::lonhomework::scantronmode=0;
669: undef($Apache::lonhomework::name);
1.358 albertel 670: undef($Apache::lonhomework::default_type);
671: undef($Apache::lonhomework::type);
1.204 albertel 672: }
673:
674: sub reset_problem_globals {
675: my ($type)=@_;
676: undef(%Apache::lonhomework::history);
677: undef(%Apache::lonhomework::results);
678: undef($Apache::inputtags::part);
1.208 albertel 679: #don't undef this, lonhomework.pm takes care of this, we use this to
680: #detect if we try to do 2 problems in one file
681: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 682: undef($Apache::lonhomework::name);
1.358 albertel 683: undef($Apache::lonhomework::default_type);
684: undef($Apache::lonhomework::type);
685: undef($Apache::lonhomework::scantronmode);
686: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 687: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 688: }
689:
1.241 albertel 690: sub set_problem_state {
1.240 albertel 691: my ($part)=@_;
1.284 albertel 692: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 693: $Apache::lonhomework::history{"resource.$part.solved"}=
694: 'correct_by_student';
695: }
696: }
697:
1.241 albertel 698: sub get_problem_status {
699: my ($part)=@_;
1.267 albertel 700: my $problem_status;
1.284 albertel 701: if ($env{'request.state'} eq 'construct' &&
702: defined($env{'form.problemstatus'})) {
703: $problem_status=$env{'form.problemstatus'};
1.267 albertel 704: } else {
705: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
706: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 707: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 708: }
709: return $problem_status;
710: }
711:
1.9 albertel 712: sub start_problem {
1.326 albertel 713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 714:
1.311 foxr 715: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 716: if (!$Apache::lonxml::metamode) {
717: &Apache::lonxml::startredirection();
718: }
1.311 foxr 719:
1.308 foxr 720: # Problems don't nest and we don't allow more than one <problem> in
721: # a .problem file.
722: #
1.184 albertel 723: if ( $Apache::inputtags::part ne '' ||
724: $Apache::lonhomework::parsing_a_problem) {
725: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 726: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 727: return '';
728: }
1.184 albertel 729:
730: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 731: &init_problem_globals('problem');
1.166 albertel 732:
1.284 albertel 733: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 734: $Apache::lonhomework::scantronmode=1;
735: }
1.161 albertel 736:
1.159 albertel 737: if ($target ne 'analyze') {
738: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 739: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 740: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 741: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 742: }
1.332 albertel 743: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 744: }
1.164 albertel 745: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 746: my $uri=$env{'request.uri'};
1.159 albertel 747: if ($uri=~/\.(\w+)$/) {
748: $Apache::lonhomework::type=$1;
749: &Apache::lonxml::debug("Using type of $1");
750: } else {
751: $Apache::lonhomework::type='problem';
752: &Apache::lonxml::debug("Using default type, problem, :$uri:");
753: }
1.87 albertel 754: }
1.301 albertel 755: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 756:
1.363 albertel 757: &initialize_storage();
1.389 albertel 758: if ($target ne 'analyze'
759: && $env{'request.state'} eq 'construct') {
760: &set_problem_state('0');
761: }
762:
1.366 albertel 763: if ($target eq 'web') {
764: &Apache::lonxml::debug(" grading history ");
765: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
766: }
1.363 albertel 767:
1.159 albertel 768: #added vars to the scripting enviroment
1.213 albertel 769: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 770: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 771: &Apache::run::run($expression,$safeeval);
1.159 albertel 772: my $status;
773: my $accessmsg;
774:
1.343 albertel 775: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 776: my ($result,$form_tag_start);
1.354 albertel 777: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
778: || $target eq 'edit') {
1.350 albertel 779: ($result,$form_tag_start) =
780: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
781: $name);
782: }
783:
1.284 albertel 784: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 785:
786: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
787: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
788: $target eq 'tex') {
789: #handle exam checkout
790: if ($Apache::lonhomework::type eq 'exam') {
791: my $token=
792: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 793: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 794: $token=&Apache::lonxml::maketoken();
795: $Apache::lonhomework::history{"resource.0.outtoken"}=
796: $token;
797: }
1.343 albertel 798: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 799: }
1.284 albertel 800: if ($env{'form.markaccess'}) {
1.252 albertel 801: &Apache::lonnet::set_first_access('map');
802: }
1.159 albertel 803: #handle rand seed in construction space
804: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 805: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 806: if ($env{'request.state'} ne "construct" &&
807: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 808: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
809: $rndseed.'" />'.
810: '<input type="submit" name="resetdata"
1.334 albertel 811: value="'.&mt('New Problem Variation').'" />';
812: if (exists($env{'form.username'})) {
813: $form_tag_start.=
1.164 albertel 814: '<input type="hidden" name="username"
1.284 albertel 815: value="'.$env{'form.username'}.'" />';
1.334 albertel 816: }
1.333 albertel 817: if ($env{'request.role.adv'}) {
1.267 albertel 818: $form_tag_start.=
1.300 albertel 819: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 820: if (defined($env{'form.showallfoils'})) {
1.267 albertel 821: $form_tag_start.='checked="on"';
822: }
1.300 albertel 823: $form_tag_start.= ' />'.&mt(' Show All Foils').
824: '</label>';
1.267 albertel 825: }
826: $form_tag_start.='<hr />';
1.162 albertel 827: }
1.324 albertel 828:
829: ($status,$accessmsg,my $slot_name,my $slot) =
830: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 831: push (@Apache::inputtags::status,$status);
1.324 albertel 832:
1.159 albertel 833: my $expression='$external::datestatus="'.$status.'";';
834: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
835: &Apache::run::run($expression,$safeeval);
836: &Apache::lonxml::debug("Got $status");
1.324 albertel 837:
1.159 albertel 838: if (( $status eq 'CLOSED' ) ||
839: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 840: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 841: ( $status eq 'BANNED') ||
1.216 albertel 842: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 843: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 844: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 845: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
846: $style);
1.159 albertel 847: if ( $target eq "web" ) {
1.343 albertel 848: my $msg;
1.159 albertel 849: if ($status eq 'UNAVAILABLE') {
1.245 albertel 850: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 851: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 852: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 853: }
1.216 albertel 854: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 855: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 856: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 857: $msg.=&checkout_msg();
1.252 albertel 858: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 859: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 860: } elsif ($status eq 'NOT_IN_A_SLOT') {
861: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 862: }
863: $result.=$msg.'<br />';
864: } elsif ($target eq 'tex') {
1.332 albertel 865: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
866: : '\begin{minipage}{\textwidth}';
867: $result.='\begin{document}\noindent \vskip 1 mm '.
868: $startminipage.'\vskip 0 mm';
1.159 albertel 869: if ($status eq 'UNAVAILABLE') {
1.211 albertel 870: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 871: } else {
1.211 albertel 872: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 873: }
874: }
1.324 albertel 875: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 876: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
877: $style);
1.324 albertel 878: if ($target eq 'web') {
1.375 albertel 879: $result .=
880: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 881: } elsif ($target eq 'grade') {
882: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
883: 'problem');
884: }
1.159 albertel 885: } elsif ($target eq 'web') {
1.360 albertel 886: if ($status eq 'CAN_ANSWER'
887: && $slot_name ne ''
888: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
889: # unproctored slot access, self checkin
890: &Apache::bridgetask::check_in('problem',undef,undef,
891: $slot_name);
892: }
1.368 albertel 893: $result.="\n $form_tag_start \t".
1.227 albertel 894: '<input type="hidden" name="submitted" value="yes" />';
895: # create a page header and exit
1.284 albertel 896: if ($env{'request.state'} eq "construct") {
897: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 898: }
899: # if we are viewing someone else preserve that info
1.284 albertel 900: if (defined $env{'form.grade_symb'}) {
1.227 albertel 901: foreach my $field ('symb','courseid','domain','username') {
902: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 903: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 904: }
905: }
906: } elsif ($target eq 'tex') {
1.319 foxr 907: $result .= 'INSERTTEXFRONTMATTERHERE';
908:
1.99 sakharuk 909: }
1.159 albertel 910: } elsif ($target eq 'edit') {
1.343 albertel 911: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 912: $Apache::lonxml::warnings_error_header=
913: &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 914: my $temp=&Apache::edit::insertlist($target,$token);
915: $result.=$temp;
916: } elsif ($target eq 'modified') {
917: $result=$token->[4];
918: } else {
919: # page_start returned a starting result, delete it if we don't need it
920: $result = '';
1.99 sakharuk 921: }
1.159 albertel 922: return $result;
1.9 albertel 923: }
924:
925: sub end_problem {
1.159 albertel 926: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 927: my $result;
1.310 foxr 928:
1.321 albertel 929: if (!$Apache::lonxml::metamode) {
930: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 931: $Apache::lonxml::post_evaluate=0;
1.321 albertel 932: }
1.319 foxr 933:
934: if ($target eq 'tex') {
1.321 albertel 935: # Figure out the front matter and replace the
936: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
937: # this in end_problem because whether or not we display due
938: # dates depends on whether due dates have already been
939: # displayed in the problem parts.
940:
1.319 foxr 941: my $frontmatter = '';
942: my $startminipage = '';
943: if (not $env{'form.problem_split'}=~/yes/) {
944: $startminipage = '\begin{minipage}{\textwidth}';
945: }
946: my $id = $Apache::inputtags::part;
947: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
948: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
949: my @packages = split /,/,$packages;
950: my $allow_print_points = 0;
951: foreach my $partial_key (@packages) {
952: if ($partial_key=~m/^part_0$/) {
953: $allow_print_points=1;
954: }
955: }
956: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
957: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
958: if (lc($env{'course.'.$env{'request.course.id'}.
959: '.disableexampointprint'}) eq 'yes') {
960: $allow_print_points=0;
961: }
962: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
963: 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 ';
964: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
965: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
966:
967: # Figure out what the due date is and if we need to print
968: # it in the problem header. We have been logging the
969: # last due date written to file.
970:
971: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
972: my $duedate = POSIX::strftime("%c",localtime($duetime));
973: my $temp_file;
974: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
975:
976: # Figure out what the last printed due date is or set it
977: # to the epoch if no duedates have been printed.
978:
979: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
980: if (-e $filename) {
981: $temp_file = Apache::File->new($filename);
982: my @due_file = <$temp_file>;
983: $due_file_content = $due_file[$#due_file];
984: chomp $due_file_content;
985: }
986:
987: # We display the due date iff it is not the same as the last
988: # duedate in problem header ($due_file_content), and
989: # none of our parts displayed a duedate.
990: #
991: my $parts_with_displayduedate;
992: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
993: $parts_with_displayduedate =
994: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
995: } else {
996: $parts_with_displayduedate = 0;
997: }
998: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
999: $temp_file = Apache::File->new('>'.$filename);
1000: print $temp_file "$duetime\n";
1001: if (not $env{'request.symb'} =~ m/\.page_/) {
1002: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1003: $frontmatter .= $begin_doc.
1004: '\textit{Due date: '.$duedate.'} '.$toc_line;
1005: } else {
1006: $frontmatter.= $begin_doc.$toc_line;
1007: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1008: }
1009: } else {
1.381 albertel 1010: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 1011: }
1012: } else {
1013: if (not $env{'request.symb'} =~ m/\.page_/) {
1014: $frontmatter .= $begin_doc.$toc_line;
1015: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1016: } else {
1.381 albertel 1017: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1018: }
1019: }
1020: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1021: }
1022:
1.159 albertel 1023: my $status=$Apache::inputtags::status['-1'];
1024: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1025: $target eq 'tex') {
1.249 albertel 1026: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1027: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1028: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1029: &Apache::inputtags::grade;
1.324 albertel 1030: } elsif ($status eq 'NEEDS_CHECKIN') {
1031: # no need to grade, and don't want to hide data
1.249 albertel 1032: } else {
1033: # move any submission data to .hidden
1034: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1035: }
1.159 albertel 1036: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1037: $Apache::inputtags::part eq '0' &&
1.252 albertel 1038: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1039: # if part is zero, no <part>s existed, so we need show the current
1040: # grading status
1041: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1042: $result.= $gradestatus;
1043: }
1044: if (
1.284 albertel 1045: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1046: ($target eq 'answer') || ($target eq 'tex')
1047: ) {
1.227 albertel 1048: if ($target ne 'tex' &&
1.284 albertel 1049: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1050: $result.="</form>";
1.348 albertel 1051: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1052: }
1053: if ($target eq 'web') {
1.346 albertel 1054: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1055: } elsif ($target eq 'tex') {
1.178 sakharuk 1056: my $endminipage = '';
1.284 albertel 1057: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1058: $endminipage = '\end{minipage}';
1059: }
1.284 albertel 1060: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1061: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1062: } else {
1.262 sakharuk 1063: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1064: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1065: $result .= $endminipage.'\end{document} ';
1066: } else {
1.382 albertel 1067: $result .= $endminipage;
1.262 sakharuk 1068: }
1.159 albertel 1069: }
1070: }
1071: }
1072: if ($target eq 'grade') {
1073: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1074: &finalize_storage();
1075: }
1.284 albertel 1076: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1077: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1078: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1079: # normally we get it from above, but in CSTR
1.172 albertel 1080: # we always show answer mode too.
1.159 albertel 1081: }
1082: } elsif ($target eq 'meta') {
1083: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1084: @Apache::inputtags::response=();
1.159 albertel 1085: $result=&Apache::response::mandatory_part_meta;
1086: }
1.215 albertel 1087: $result.=&Apache::response::meta_part_order();
1.258 albertel 1088: $result.=&Apache::response::meta_response_order();
1.159 albertel 1089: } elsif ($target eq 'edit') {
1090: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1091: $result .= &problem_edit_footer();
1.320 albertel 1092: } elsif ($target eq 'modified') {
1093: $result .= $token->[2];
1.159 albertel 1094: }
1.155 albertel 1095:
1.284 albertel 1096: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1097: &Apache::inputtags::check_for_duplicate_ids();
1098: }
1.204 albertel 1099:
1100: &reset_problem_globals('problem');
1.159 albertel 1101:
1102: return $result;
1.48 albertel 1103: }
1104:
1.108 albertel 1105:
1.48 albertel 1106: sub start_library {
1.159 albertel 1107: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1108: my ($result,$form_tag_start);
1.371 albertel 1109: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1110: &init_problem_globals('library');
1111: $Apache::lonhomework::type='problem';
1112: }
1.159 albertel 1113: if ($target eq 'edit') {
1.343 albertel 1114: ($result,$form_tag_start)=
1115: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1116: 'Edit');
1117: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1118: my $temp=&Apache::edit::insertlist($target,$token);
1119: $result.=$temp;
1120: } elsif ($target eq 'modified') {
1121: $result=$token->[4];
1.340 albertel 1122: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1123: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1124: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1125: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1126: ($result,$form_tag_start)=
1127: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1128: $name);
1.159 albertel 1129: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1130: $result.=" \n $form_tag_start".
1.159 albertel 1131: '<input type="hidden" name="submitted" value="yes" />';
1132: $result.=&problem_web_to_edit_header($rndseed);
1133: }
1134: return $result;
1.48 albertel 1135: }
1136:
1137: sub end_library {
1.159 albertel 1138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1139: my $result='';
1140: if ($target eq 'edit') {
1141: $result=&problem_edit_footer();
1.371 albertel 1142: } elsif ($target eq 'web'
1143: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1144: && $env{'request.state'} eq "construct") {
1.349 albertel 1145: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1146: }
1.371 albertel 1147: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1148: &reset_problem_globals('library');
1149: }
1.159 albertel 1150: return $result;
1.197 www 1151: }
1152:
1153: sub start_definetag {
1.326 albertel 1154: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1155:
1156: my $result;
1157:
1158: my $name = $token->[2]->{'name'};
1.326 albertel 1159: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1160: if ($target eq 'web') {
1161: if ($name=~/^\//) {
1162: $result=
1163: '<br /><table class="LC_sty_end"><tr><th>'.
1164: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1165: } else {
1166: $result=
1167: '<br /><table class="LC_sty_begin"><tr><th>'.
1168: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1169: }
1170: $skip = &HTML::Entities::encode($skip, '<>&"');
1171: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1172: }
1173: return $result;
1174: }
1175:
1176: sub end_definetag {
1177: return '';
1.1 albertel 1178: }
1179:
1180: sub start_block {
1.201 albertel 1181: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1182:
1183: my $result;
1.1 albertel 1184:
1.339 albertel 1185: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1186: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1187: my $code = $token->[2]->{'condition'};
1.385 albertel 1188: if (defined($code) && $code ne '') {
1.137 albertel 1189: if (!$Apache::lonxml::default_homework_loaded) {
1190: &Apache::lonxml::default_homework_load($safeeval);
1191: }
1.131 albertel 1192: $result = &Apache::run::run($code,$safeeval);
1193: &Apache::lonxml::debug("block :$code: returned :$result:");
1194: } else {
1195: $result='1';
1196: }
1197: if ( ! $result ) {
1.201 albertel 1198: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1199: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1200: }
1201: $result='';
1202: } elsif ($target eq 'edit') {
1203: $result .=&Apache::edit::tag_start($target,$token);
1204: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1205: $token,40);
1206: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1207: } elsif ($target eq 'modified') {
1208: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1209: $safeeval,'condition');
1210: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1211: }
1.131 albertel 1212: return $result;
1.1 albertel 1213: }
1214:
1215: sub end_block {
1.167 www 1216: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1217: my $result;
1218: if ($target eq "edit") {
1219: $result.= &Apache::edit::tag_end($target,$token,'');
1220: }
1221: return $result;
1222: }
1223:
1224: sub start_languageblock {
1.201 albertel 1225: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1226:
1227: my $result;
1228:
1.339 albertel 1229: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1230: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1231: my $include = $token->[2]->{'include'};
1232: my $exclude = $token->[2]->{'exclude'};
1.398 www 1233: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1234: # This should not even happen, since we should at least have the server language
1.398 www 1235: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1236: # Now loop over all languages in order of preference
1237: foreach my $preferred_language (@preferred_languages) {
1.394 www 1238: # If the languageblock has no arguments, show the contents
1.399 www 1239: $result=1;
1240: my $found=0;
1.394 www 1241: # Do we have an include argument?
1.398 www 1242: if ($include) {
1.394 www 1243: # If include is specified, by default, don't render the block
1.399 www 1244: $result=0;
1.398 www 1245: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1246: # ... but if my preferred language is included, render it
1.398 www 1247: if ($included_language eq $preferred_language) {
1.399 www 1248: $result=1;
1249: $found=1;
1.398 www 1250: }
1251: }
1252: }
1.394 www 1253: # Do we have an exclude argument?
1.398 www 1254: if ($exclude) {
1.399 www 1255: $result=1;
1.398 www 1256: foreach my $excluded_language (split(/\,/,$exclude)) {
1257: if ($excluded_language eq $preferred_language) {
1.399 www 1258: $result=0;
1259: $found=1;
1.398 www 1260: }
1261: }
1262: }
1.399 www 1263: if ($found) { last; }
1.398 www 1264: }
1.201 albertel 1265: if ( ! $result ) {
1266: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1267: $style);
1268: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1269: }
1270: $result='';
1.167 www 1271: } elsif ($target eq 'edit') {
1272: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1273: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1274: $token,40);
1.211 albertel 1275: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1276: $token,40);
1277: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1278: } elsif ($target eq 'modified') {
1279: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1280: $safeeval,'include',
1281: 'exclude');
1.167 www 1282: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1283: }
1284: return $result;
1285: }
1286:
1287: sub end_languageblock {
1.170 www 1288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1289: my $result;
1.201 albertel 1290: if ($target eq "edit") {
1.170 www 1291: $result.= &Apache::edit::tag_end($target,$token,'');
1292: }
1293: return $result;
1294: }
1295:
1.397 albertel 1296: {
1297: my %available_texts;
1298: sub start_translated {
1299: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1300: &Apache::lonxml::register('Apache::structuretags',('lang'));
1301: undef(%available_texts);
1302: }
1303:
1304: sub end_translated {
1305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1306: my $result;
1307: #show the translation on viewable targets
1308: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1309: # or non-viewable targets, if it's embedded in something that
1310: # wants the output
1311: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1312: && &Apache::lonxml::in_redirection() ) ) {
1313: my @possibilities = keys(%available_texts);
1314: my $which =
1315: &Apache::loncommon::languages(\@possibilities) || 'default';
1316: $result = $available_texts{$which};
1317: }
1318: undef(%available_texts);
1319: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1320: return $result;
1321: }
1322:
1323:
1324: sub start_lang {
1325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1326: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1327: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1328: &Apache::lonxml::startredirection();
1329: }
1330: return '';
1331: }
1332:
1333: sub end_lang {
1334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1335: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1336: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1337: my $result = &Apache::lonxml::endredirection();
1338: my $which = &Apache::lonxml::get_param('which',$parstack,
1339: $safeeval);
1340: $available_texts{$which} = $result;
1341: }
1342: return '';
1343: }
1344: }
1345:
1.170 www 1346: sub start_instructorcomment {
1.201 albertel 1347: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1348:
1349: my $result;
1350:
1.339 albertel 1351: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1352: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1353: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1354: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1355: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1356: $parser,$style);
1.170 www 1357: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1358: }
1359: $result='';
1360: } elsif ($target eq 'edit') {
1361: $result .=&Apache::edit::tag_start($target,$token);
1362: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1363: }
1364: return $result;
1365: }
1366:
1367: sub end_instructorcomment {
1.159 albertel 1368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1369: my $result;
1370: if ($target eq "edit") {
1371: $result.= &Apache::edit::tag_end($target,$token,'');
1372: }
1373: return $result;
1.4 tsai 1374: }
1375:
1376: sub start_while {
1.326 albertel 1377: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1378:
1.160 albertel 1379: my $result;
1.339 albertel 1380: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1381: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1382: my $code = $token->[2]->{'condition'};
1.4 tsai 1383:
1.160 albertel 1384: push( @Apache::structuretags::whileconds, $code);
1385: if (!$Apache::lonxml::default_homework_loaded) {
1386: &Apache::lonxml::default_homework_load($safeeval);
1387: }
1388: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1389: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1390: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1391: push( @Apache::structuretags::whileline, $token->[5]);
1392: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1393: if ( $result ) {
1394: &Apache::lonxml::newparser($parser,\$bodytext);
1395: }
1396: } elsif ($target eq 'edit') {
1397: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1398: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1399: $token,40);
1400: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1401: } elsif ($target eq 'modified') {
1402: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1403: $safeeval,'condition');
1404: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1405: }
1.160 albertel 1406: return $result;
1.4 tsai 1407: }
1408:
1409: sub end_while {
1.159 albertel 1410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1411: my $result;
1412:
1.339 albertel 1413: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1414: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1415: my $code = pop(@Apache::structuretags::whileconds);
1416: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1417: my $line = pop(@Apache::structuretags::whileline);
1418: my $return = &Apache::run::run($code,$safeeval);
1419: my $starttime=time;
1420: my $error=0;
1421: while ($return) {
1422: if (time-$starttime >
1423: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1424: $return = 0; $error=1; next;
1.161 albertel 1425: }
1426: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1427: if ($target eq 'grade' || $target eq 'answer' ||
1428: $target eq 'analyze') {
1429: # grade/answer/analyze should produce no output but if we
1430: # are redirecting, the redirecter should know what to do
1431: # with the output
1432: if (!$Apache::lonxml::redirection) { undef($result); }
1433: }
1.161 albertel 1434: $return = &Apache::run::run($code,$safeeval);
1435: }
1436: if ($error) {
1.270 albertel 1437: &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 1438: }
1439: } elsif ($target eq "edit") {
1440: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1441: }
1.160 albertel 1442: return $result;
1.1 albertel 1443: }
1.6 tsai 1444:
1.160 albertel 1445: # <randomlist show="1">
1.6 tsai 1446: # <tag1>..</tag1>
1447: # <tag2>..</tag2>
1448: # <tag3>..</tag3>
1.160 albertel 1449: # ...
1.6 tsai 1450: # </randomlist>
1451: sub start_randomlist {
1.326 albertel 1452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1453: my $result;
1.339 albertel 1454: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1455: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1456: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1457: my $b_parser= HTML::LCParser->new(\$body);
1458: $b_parser->xml_mode(1);
1459: $b_parser->marked_sections(1);
1.159 albertel 1460: my $b_tok;
1461: my @randomlist;
1462: my $list_item;
1463: while($b_tok = $b_parser->get_token() ) {
1464: if($b_tok->[0] eq 'S') { # start tag
1465: # get content of the tag until matching end tag
1466: # get all text upto the matching tag
1467: # and push the content into @randomlist
1468: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1469: $b_parser);
1470: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1471: push(@randomlist,$list_item);
1472: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1473: # $list_item</b>";
1474: }
1475: if($b_tok->[0] eq 'T') { # text
1476: # what to do with text in between tags?
1477: # print "<b>TEXT $b_tok->[1]</b><br />";
1478: }
1479: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1480: # print "<b>END-TAG $b_tok->[1]</b><br />";
1481: # }
1482: }
1.303 albertel 1483: if (@randomlist) {
1484: my @idx_arr = (0 .. $#randomlist);
1485: &Apache::structuretags::shuffle(\@idx_arr);
1486: my $bodytext = '';
1487: my $show=$#randomlist;
1488: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1489: $showarg--;
1490: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1491: for(0 .. $show) {
1492: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1493: }
1494: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1495: }
1496: } elsif ($target eq 'edit' ) {
1497: $result .=&Apache::edit::tag_start($target,$token);
1498: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1499: $token,5);
1500: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1501: } elsif ($target eq 'modified' ) {
1502: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1503: $safeeval,'show');
1504: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1505: }
1506: return $result;
1.7 tsai 1507: }
1508:
1509: sub shuffle {
1510: my $a=shift;
1511: my $i;
1.303 albertel 1512: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1513: &Apache::response::pushrandomnumber();
1.159 albertel 1514: for($i=@$a;--$i;) {
1515: my $j=int(&Math::Random::random_uniform() * ($i+1));
1516: next if $i == $j;
1517: @$a[$i,$j] = @$a[$j,$i];
1518: }
1.251 albertel 1519: &Apache::response::poprandomnumber();
1.7 tsai 1520: }
1.6 tsai 1521: }
1522:
1523: sub end_randomlist {
1.159 albertel 1524: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1525: my $result;
1526: if ($target eq 'edit' ) {
1527: $result=&Apache::edit::tag_end($target,$token,
1528: 'End Randomly Parsed Block');
1529: }
1530: return $result;
1.6 tsai 1531: }
1532:
1.283 albertel 1533: sub ordered_show_check {
1534: my $last_part=$Apache::inputtags::partlist[-2];
1535: my $in_order=
1536: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1537: my $in_order_show=1;
1538: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1539: $in_order_show=&Apache::response::check_status($last_part);
1540: }
1541: return $in_order_show;
1542: }
1543:
1.11 albertel 1544: sub start_part {
1.326 albertel 1545: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1546: if (!$Apache::lonxml::metamode) {
1547: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1548: # duedates.
1549: }
1.159 albertel 1550: my $result='';
1.386 albertel 1551: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1552: $Apache::inputtags::part=$id;
1.177 albertel 1553: push(@Apache::inputtags::partlist,$id);
1554: @Apache::inputtags::response=();
1.159 albertel 1555: @Apache::inputtags::previous=();
1556: @Apache::inputtags::previous_version=();
1.405 albertel 1557: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1558: &Apache::response::reset_params();
1559:
1.159 albertel 1560: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1561: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1562: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1563: my $in_order_show=&ordered_show_check();
1.214 albertel 1564: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1565: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1566: &Apache::run::run($expression,$safeeval);
1.159 albertel 1567:
1568: if ($target eq 'meta') {
1.224 www 1569: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1570: return &Apache::response::mandatory_part_meta.
1571: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1572: } elsif ($target eq 'web' || $target eq 'grade' ||
1573: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1574: if ($hidden || !$in_order_show) {
1.326 albertel 1575: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1576: } else {
1577: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1578: push (@Apache::inputtags::status,$status);
1579: my $expression='$external::datestatus="'.$status.'";';
1580: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1581: &Apache::run::run($expression,$safeeval);
1.284 albertel 1582: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1583: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1584: }
1.216 albertel 1585: if (( $status eq 'CLOSED' ) ||
1586: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1587: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1588: ( $status eq 'BANNED') ||
1589: ( $status eq 'UNAVAILABLE') ||
1590: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1591: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1592: $style);
1.159 albertel 1593: if ( $target eq "web" ) {
1.211 albertel 1594: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1595: } elsif ( $target eq 'tex' ) {
1.284 albertel 1596: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1597: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1598: } else {
1.211 albertel 1599: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1600: }
1.159 albertel 1601: }
1602: } else {
1603: if ($target eq 'tex') {
1.284 albertel 1604: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1605: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1606: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1607: } else {
1608: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1609: }
1.195 sakharuk 1610: }
1.159 albertel 1611: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1612: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1613: my @allkeys = split /,/,$allkeys;
1614: my $allow_print_points = 0;
1615: foreach my $partial_key (@allkeys) {
1.230 albertel 1616: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1617: if ($1 ne '0') {$allow_print_points=1;}
1618: }
1619: }
1.275 albertel 1620: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1621: if (defined($maxtries) && $maxtries < 0) {
1622: $allow_print_points=0;
1623: }
1.302 albertel 1624: if (lc($env{'course.'.$env{'request.course.id'}.
1625: '.disableexampointprint'}) eq 'yes') {
1626: $allow_print_points=0;
1627: }
1.222 sakharuk 1628: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1629: } elsif ($target eq 'web') {
1.356 www 1630: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1631: }
1632: }
1633: }
1634: } elsif ($target eq 'edit') {
1635: $result.=&Apache::edit::tag_start($target,$token);
1636: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1637: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1638: ' '.
1639: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1640: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1641: } elsif ($target eq 'modified') {
1642: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1643: $safeeval,'id','display');
1.159 albertel 1644: if ($constructtag) {
1.225 albertel 1645: #limiting ids to only letters numbers, and space
1.224 www 1646: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1647: $result = &Apache::edit::rebuild_tag($token);
1648: }
1649: }
1650: return $result;
1.11 albertel 1651: }
1652:
1653: sub end_part {
1.159 albertel 1654: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1655: &Apache::lonxml::debug("in end_part $target ");
1656: my $status=$Apache::inputtags::status['-1'];
1657: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1658: my $in_order_show=&ordered_show_check();
1.321 albertel 1659: my $result;
1660: if (!$Apache::lonxml::metamode) {
1661: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1662: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1663: }
1.312 albertel 1664: if ($target eq 'grade') {
1.249 albertel 1665: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1666: !$hidden && $in_order_show) {
1.311 foxr 1667: $result.=&Apache::inputtags::grade;
1.249 albertel 1668: } else {
1669: # move any submission data to .hidden
1670: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1671: }
1.283 albertel 1672: } elsif (($target eq 'web' || $target eq 'tex') &&
1673: !$hidden && $in_order_show) {
1.159 albertel 1674: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1675: $target);
1.212 albertel 1676: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1677: $gradestatus='';
1678: }
1.311 foxr 1679: $result.=$gradestatus;
1.265 sakharuk 1680: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1681: } elsif ($target eq 'edit') {
1.311 foxr 1682: $result.=&Apache::edit::end_table();
1.322 albertel 1683: } elsif ($target eq 'modified') {
1684: $result .= $token->[2];
1.159 albertel 1685: }
1686: pop @Apache::inputtags::status;
1687: $Apache::inputtags::part='';
1.295 albertel 1688: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1689: return $result;
1.11 albertel 1690: }
1.1 albertel 1691:
1.25 albertel 1692: sub start_preduedate {
1.326 albertel 1693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1694: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1695: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1696: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1697: if (!$Apache::lonhomework::scantronmode &&
1698: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1699: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1700: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1701: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1702: }
1.24 albertel 1703: }
1.159 albertel 1704: return '';
1.24 albertel 1705: }
1706:
1.25 albertel 1707: sub end_preduedate {
1.159 albertel 1708: return '';
1.24 albertel 1709: }
1710:
1.369 foxr 1711: # In all the modes where <postanswerdate> text is
1712: # displayable, all we do is eat up the text between the start/stop
1713: # tags if the conditions are not right to display it.
1.25 albertel 1714: sub start_postanswerdate {
1.326 albertel 1715: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1716: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1717: &Apache::lonnet::allowed('pav',
1718: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1719: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1720: $target eq 'tex' ) {
1.300 albertel 1721: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1722: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1723: (($target eq 'tex') && !$pav)) {
1.326 albertel 1724: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1725: }
1726: }
1727: return '';
1.24 albertel 1728: }
1729:
1.25 albertel 1730: sub end_postanswerdate {
1.159 albertel 1731: return '';
1.24 albertel 1732: }
1733:
1.25 albertel 1734: sub start_notsolved {
1.326 albertel 1735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1736: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1737: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1738: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1739: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1740: if ($gradestatus =~ /^correct/ &&
1741: &Apache::response::show_answer()) {
1.159 albertel 1742: &Apache::lonxml::debug("skipping");
1.326 albertel 1743: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1744: }
1.24 albertel 1745: }
1.159 albertel 1746: return '';
1.24 albertel 1747: }
1748:
1.25 albertel 1749: sub end_notsolved {
1.159 albertel 1750: return '';
1.24 albertel 1751: }
1752:
1753: sub start_solved {
1.326 albertel 1754: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1755: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1756: $target eq 'tex') {
1757: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1758: if ($gradestatus !~ /^correct/ ||
1759: !&Apache::response::show_answer()) {
1.326 albertel 1760: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1761: }
1.24 albertel 1762: }
1.159 albertel 1763: return '';
1.24 albertel 1764: }
1765:
1766: sub end_solved {
1.248 albertel 1767: return '';
1768: }
1769:
1770: sub start_problemtype {
1.326 albertel 1771: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1772: my $result;
1.339 albertel 1773: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1774: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1775: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1776: if (!defined($mode)) { $mode='show'; }
1777: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1778: my $found=0;
1779: foreach my $type (split(',',$for)) {
1780: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1781: }
1782: if ($mode eq 'show' && !$found) {
1.326 albertel 1783: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1784: }
1785: if ($mode eq 'hide' && $found) {
1.326 albertel 1786: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1787: }
1788: } elsif ($target eq 'edit') {
1789: $result .=&Apache::edit::tag_start($target,$token);
1790: $result.=&Apache::edit::select_arg('Mode:','mode',
1791: [['show','Show'],
1792: ['hide','Hide']]
1793: ,$token);
1794: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1795: [ ['exam','Exam/Quiz Problem'],
1796: ['survey','Survey'],
1797: ['problem','Homework Problem'] ]
1798: ,$token);
1799: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1800: } elsif ($target eq 'modified') {
1801: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1802: $safeeval,'mode','for');
1803: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1804: }
1805: return $result;
1806: }
1807:
1808: sub end_problemtype {
1.159 albertel 1809: return '';
1.24 albertel 1810: }
1.34 albertel 1811:
1812: sub start_startouttext {
1.159 albertel 1813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1814: my @result=(''.'');
1815: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1816:
1817: my $nesting =
1818: &Apache::lonxml::set_state('outtext',
1819: &Apache::lonxml::get_state('outtext')+1);
1820: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1821: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1822: }
1.159 albertel 1823: return (@result);
1.34 albertel 1824: }
1.159 albertel 1825:
1.34 albertel 1826: sub end_startouttext {
1.326 albertel 1827: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1828: my $result='';
1829: my $text='';
1830:
1831: if ($target eq 'edit') {
1.326 albertel 1832: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1833: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1834: <td>".&mt('Delete:').
1.159 albertel 1835: &Apache::edit::deletelist($target,$token)
1836: ."</td>
1.42 albertel 1837: <td>".
1.159 albertel 1838: &Apache::edit::insertlist($target,$token).
1.362 albertel 1839: '</td><td align="right" valign="top">' .
1840: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1841: &Apache::edit::end_row().
1.362 albertel 1842: &Apache::edit::start_spanning_row()."\n".
1.255 www 1843: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1844: }
1845: if ($target eq 'modified') {
1.219 albertel 1846: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1847: }
1848: if ($target eq 'tex') {
1849: $result .= '\noindent ';
1850: }
1851: return $result;
1.34 albertel 1852: }
1.159 albertel 1853:
1.34 albertel 1854: sub start_endouttext {
1.159 albertel 1855: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1856: my $result='';
1857: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1858: if ($target eq "modified") {
1859: $result='<endouttext />'.
1.377 albertel 1860: &Apache::edit::handle_insertafter('startouttext');
1861: }
1.404 albertel 1862:
1863: my $nesting =
1864: &Apache::lonxml::set_state('outtext',
1865: &Apache::lonxml::get_state('outtext')-1);
1866: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1867: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1868: &Apache::lonxml::set_state('outtext', 0);
1869: }
1.159 albertel 1870: return $result;
1.34 albertel 1871: }
1.159 albertel 1872:
1.34 albertel 1873: sub end_endouttext {
1.159 albertel 1874: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1875: my @result=('','');
1876: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1877: return (@result);
1.34 albertel 1878: }
1.159 albertel 1879:
1.45 albertel 1880: sub delete_startouttext {
1.326 albertel 1881: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1882: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1883: my $text=$$parser['-1']->get_text("/endouttext");
1884: my $ntoken=$$parser['-1']->get_token();
1885: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1886: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1887: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1888: # they did the last time round
1889: &Apache::lonxml::increasedepth($ntoken);
1890: &Apache::lonxml::decreasedepth($ntoken);
1891: return 1;
1.193 www 1892: }
1893:
1894: sub start_simpleeditbutton {
1895: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1896: my $result='';
1.284 albertel 1897: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1898: ($target eq 'web') &&
1.330 albertel 1899: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1900: my $url=$env{'request.noversionuri'};
1.193 www 1901: $url=~s/\?.*$//;
1.367 albertel 1902: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1903: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1904: '<a href="'.$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 1905: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1906: }
1907: return $result;
1908: }
1909:
1910: sub end_simpleeditbutton {
1911: return '';
1.45 albertel 1912: }
1.34 albertel 1913:
1.1 albertel 1914: 1;
1915: __END__
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