Annotation of loncom/homework/structuretags.pm, revision 1.414
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.414 ! albertel 4: # $Id: structuretags.pm,v 1.413 2007/11/13 23:33:01 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)=@_;
1.414 ! albertel 623: my $result;
! 624: my @interval=&Apache::lonnet::EXT("resource.0.interval");
! 625: if ($interval[1] eq 'map') {
! 626: my ($map)=&Apache::lonnet::decode_symb($symb);
! 627: my $foldertitle=&Apache::lonnet::gettitle($map);
! 628:
! 629: &Apache::lonxml::debug("map is $map title is $foldertitle");
! 630: $result .= (<<ENDCHECKOUT);
! 631: <h2>The resources in "$foldertitle" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources "$foldertitle".</h2>
! 632: ENDCHECKOUT
! 633: } elsif ($interval[1] eq 'course') {
! 634: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
! 635: $result .= (<<ENDCHECKOUT);
! 636: <h2>The resources in "$course" are open for a limited time. Once you click the 'Show Resource' button below you have $time to complete all resources in "$course".</h2>
! 637: ENDCHECKOUT
! 638: } else {
! 639: my $title=&Apache::lonnet::gettitle($symb);
! 640: $result .= (<<ENDCHECKOUT);
! 641: <h2>This resource "$title" is open for a limited time. Once you click the 'Show Resource' button below you have $time to complete this resource "$title".</h2>
! 642: ENDCHECKOUT
! 643:
! 644: }
1.352 albertel 645: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.414 ! albertel 646: $result .= (<<ENDCHECKOUT);
1.352 albertel 647: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 648: <input type="hidden" name="markaccess" value="yes" />
649: <input type="button" name="accessbutton" value="Show Resource" onClick="javascript:if (confirm('Start Timer?')) { document.markaccess.submit(); }" />
650: </form>
651: ENDCHECKOUT
1.414 ! albertel 652: return $result;
1.252 albertel 653: }
654:
1.204 albertel 655: sub init_problem_globals {
656: my ($type)=@_;
657: #initialize globals
1.308 foxr 658: # For problems, we start out in part 0 (outside a <part> tag).
659: # and part 0 is used to describe the main body of the <problem>
660: #
1.204 albertel 661: if ($type eq 'problem') {
662: $Apache::inputtags::part='0';
663: @Apache::inputtags::partlist=('0');
1.405 albertel 664: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 665: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 666:
1.266 albertel 667: } elsif ($type eq 'library') {
1.204 albertel 668: $Apache::inputtags::part='';
669: @Apache::inputtags::partlist=();
1.405 albertel 670: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 671: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 672:
1.304 albertel 673: } elsif ($type eq 'Task') {
674: $Apache::inputtags::part='0';
675: @Apache::inputtags::partlist=('0');
1.405 albertel 676: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 677: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 678: }
679: @Apache::inputtags::responselist = ();
680: @Apache::inputtags::importlist = ();
681: @Apache::inputtags::previous=();
682: @Apache::inputtags::previous_version=();
683: $Apache::structuretags::printanswer='No';
684: @Apache::structuretags::whileconds=();
685: @Apache::structuretags::whilebody=();
686: @Apache::structuretags::whileline=();
687: $Apache::lonhomework::scantronmode=0;
688: undef($Apache::lonhomework::name);
1.358 albertel 689: undef($Apache::lonhomework::default_type);
690: undef($Apache::lonhomework::type);
1.204 albertel 691: }
692:
693: sub reset_problem_globals {
694: my ($type)=@_;
695: undef(%Apache::lonhomework::history);
696: undef(%Apache::lonhomework::results);
697: undef($Apache::inputtags::part);
1.208 albertel 698: #don't undef this, lonhomework.pm takes care of this, we use this to
699: #detect if we try to do 2 problems in one file
700: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 701: undef($Apache::lonhomework::name);
1.358 albertel 702: undef($Apache::lonhomework::default_type);
703: undef($Apache::lonhomework::type);
704: undef($Apache::lonhomework::scantronmode);
705: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 706: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 707: }
708:
1.241 albertel 709: sub set_problem_state {
1.240 albertel 710: my ($part)=@_;
1.284 albertel 711: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 712: $Apache::lonhomework::history{"resource.$part.solved"}=
713: 'correct_by_student';
714: }
715: }
716:
1.241 albertel 717: sub get_problem_status {
718: my ($part)=@_;
1.267 albertel 719: my $problem_status;
1.284 albertel 720: if ($env{'request.state'} eq 'construct' &&
721: defined($env{'form.problemstatus'})) {
722: $problem_status=$env{'form.problemstatus'};
1.267 albertel 723: } else {
724: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
725: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 726: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 727: }
728: return $problem_status;
729: }
730:
1.9 albertel 731: sub start_problem {
1.326 albertel 732: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 733:
1.311 foxr 734: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 735: if (!$Apache::lonxml::metamode) {
736: &Apache::lonxml::startredirection();
737: }
1.311 foxr 738:
1.308 foxr 739: # Problems don't nest and we don't allow more than one <problem> in
740: # a .problem file.
741: #
1.184 albertel 742: if ( $Apache::inputtags::part ne '' ||
743: $Apache::lonhomework::parsing_a_problem) {
744: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 745: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 746: return '';
747: }
1.184 albertel 748:
749: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 750: &init_problem_globals('problem');
1.166 albertel 751:
1.284 albertel 752: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 753: $Apache::lonhomework::scantronmode=1;
754: }
1.161 albertel 755:
1.159 albertel 756: if ($target ne 'analyze') {
757: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
1.284 albertel 758: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 759: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 760: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 761: }
1.332 albertel 762: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 763: }
1.164 albertel 764: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 765: my $uri=$env{'request.uri'};
1.159 albertel 766: if ($uri=~/\.(\w+)$/) {
767: $Apache::lonhomework::type=$1;
768: &Apache::lonxml::debug("Using type of $1");
769: } else {
770: $Apache::lonhomework::type='problem';
771: &Apache::lonxml::debug("Using default type, problem, :$uri:");
772: }
1.87 albertel 773: }
1.301 albertel 774: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 775:
1.363 albertel 776: &initialize_storage();
1.389 albertel 777: if ($target ne 'analyze'
778: && $env{'request.state'} eq 'construct') {
779: &set_problem_state('0');
780: }
781:
1.366 albertel 782: if ($target eq 'web') {
783: &Apache::lonxml::debug(" grading history ");
784: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
785: }
1.363 albertel 786:
1.159 albertel 787: #added vars to the scripting enviroment
1.213 albertel 788: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 789: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 790: &Apache::run::run($expression,$safeeval);
1.159 albertel 791: my $status;
792: my $accessmsg;
793:
1.343 albertel 794: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 795: my ($result,$form_tag_start);
1.354 albertel 796: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
797: || $target eq 'edit') {
1.350 albertel 798: ($result,$form_tag_start) =
799: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
800: $name);
801: }
802:
1.284 albertel 803: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 804:
805: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
806: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
807: $target eq 'tex') {
808: #handle exam checkout
809: if ($Apache::lonhomework::type eq 'exam') {
810: my $token=
811: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 812: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 813: $token=&Apache::lonxml::maketoken();
814: $Apache::lonhomework::history{"resource.0.outtoken"}=
815: $token;
816: }
1.343 albertel 817: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 818: }
1.284 albertel 819: if ($env{'form.markaccess'}) {
1.414 ! albertel 820: my @interval=&Apache::lonnet::EXT("resource.0.interval");
! 821: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 822: }
1.159 albertel 823: #handle rand seed in construction space
824: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 825: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 826: if ($env{'request.state'} ne "construct" &&
827: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 828: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
829: $rndseed.'" />'.
830: '<input type="submit" name="resetdata"
1.334 albertel 831: value="'.&mt('New Problem Variation').'" />';
832: if (exists($env{'form.username'})) {
833: $form_tag_start.=
1.164 albertel 834: '<input type="hidden" name="username"
1.284 albertel 835: value="'.$env{'form.username'}.'" />';
1.334 albertel 836: }
1.333 albertel 837: if ($env{'request.role.adv'}) {
1.267 albertel 838: $form_tag_start.=
1.300 albertel 839: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 840: if (defined($env{'form.showallfoils'})) {
1.267 albertel 841: $form_tag_start.='checked="on"';
842: }
1.300 albertel 843: $form_tag_start.= ' />'.&mt(' Show All Foils').
844: '</label>';
1.267 albertel 845: }
846: $form_tag_start.='<hr />';
1.162 albertel 847: }
1.324 albertel 848:
849: ($status,$accessmsg,my $slot_name,my $slot) =
850: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 851: push (@Apache::inputtags::status,$status);
1.324 albertel 852:
1.159 albertel 853: my $expression='$external::datestatus="'.$status.'";';
854: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
855: &Apache::run::run($expression,$safeeval);
856: &Apache::lonxml::debug("Got $status");
1.324 albertel 857:
1.159 albertel 858: if (( $status eq 'CLOSED' ) ||
859: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 860: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 861: ( $status eq 'BANNED') ||
1.216 albertel 862: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 863: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 864: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 865: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
866: $style);
1.159 albertel 867: if ( $target eq "web" ) {
1.343 albertel 868: my $msg;
1.159 albertel 869: if ($status eq 'UNAVAILABLE') {
1.245 albertel 870: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 871: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 872: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 873: }
1.216 albertel 874: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 875: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 876: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 877: $msg.=&checkout_msg();
1.252 albertel 878: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 879: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 880: } elsif ($status eq 'NOT_IN_A_SLOT') {
881: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 882: }
883: $result.=$msg.'<br />';
884: } elsif ($target eq 'tex') {
1.332 albertel 885: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
886: : '\begin{minipage}{\textwidth}';
887: $result.='\begin{document}\noindent \vskip 1 mm '.
888: $startminipage.'\vskip 0 mm';
1.159 albertel 889: if ($status eq 'UNAVAILABLE') {
1.211 albertel 890: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 891: } else {
1.211 albertel 892: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 893: }
894: }
1.324 albertel 895: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 896: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
897: $style);
1.324 albertel 898: if ($target eq 'web') {
1.375 albertel 899: $result .=
900: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 901: } elsif ($target eq 'grade') {
902: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
903: 'problem');
904: }
1.159 albertel 905: } elsif ($target eq 'web') {
1.360 albertel 906: if ($status eq 'CAN_ANSWER'
907: && $slot_name ne ''
908: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
909: # unproctored slot access, self checkin
910: &Apache::bridgetask::check_in('problem',undef,undef,
911: $slot_name);
912: }
1.368 albertel 913: $result.="\n $form_tag_start \t".
1.227 albertel 914: '<input type="hidden" name="submitted" value="yes" />';
915: # create a page header and exit
1.284 albertel 916: if ($env{'request.state'} eq "construct") {
917: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.227 albertel 918: }
919: # if we are viewing someone else preserve that info
1.284 albertel 920: if (defined $env{'form.grade_symb'}) {
1.227 albertel 921: foreach my $field ('symb','courseid','domain','username') {
922: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 923: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 924: }
925: }
926: } elsif ($target eq 'tex') {
1.319 foxr 927: $result .= 'INSERTTEXFRONTMATTERHERE';
928:
1.99 sakharuk 929: }
1.159 albertel 930: } elsif ($target eq 'edit') {
1.343 albertel 931: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 932: $Apache::lonxml::warnings_error_header=
933: &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 934: my $temp=&Apache::edit::insertlist($target,$token);
935: $result.=$temp;
936: } elsif ($target eq 'modified') {
937: $result=$token->[4];
938: } else {
939: # page_start returned a starting result, delete it if we don't need it
940: $result = '';
1.99 sakharuk 941: }
1.159 albertel 942: return $result;
1.9 albertel 943: }
944:
945: sub end_problem {
1.159 albertel 946: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 947: my $result;
1.310 foxr 948:
1.321 albertel 949: if (!$Apache::lonxml::metamode) {
950: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 951: $Apache::lonxml::post_evaluate=0;
1.321 albertel 952: }
1.319 foxr 953:
954: if ($target eq 'tex') {
1.321 albertel 955: # Figure out the front matter and replace the
956: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
957: # this in end_problem because whether or not we display due
958: # dates depends on whether due dates have already been
959: # displayed in the problem parts.
960:
1.319 foxr 961: my $frontmatter = '';
962: my $startminipage = '';
963: if (not $env{'form.problem_split'}=~/yes/) {
964: $startminipage = '\begin{minipage}{\textwidth}';
965: }
966: my $id = $Apache::inputtags::part;
967: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
968: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
969: my @packages = split /,/,$packages;
970: my $allow_print_points = 0;
971: foreach my $partial_key (@packages) {
972: if ($partial_key=~m/^part_0$/) {
973: $allow_print_points=1;
974: }
975: }
976: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
977: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
978: if (lc($env{'course.'.$env{'request.course.id'}.
979: '.disableexampointprint'}) eq 'yes') {
980: $allow_print_points=0;
981: }
982: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
983: 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 ';
984: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
985: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
986:
987: # Figure out what the due date is and if we need to print
988: # it in the problem header. We have been logging the
989: # last due date written to file.
990:
991: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
992: my $duedate = POSIX::strftime("%c",localtime($duetime));
993: my $temp_file;
994: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
995:
996: # Figure out what the last printed due date is or set it
997: # to the epoch if no duedates have been printed.
998:
999: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1000: if (-e $filename) {
1001: $temp_file = Apache::File->new($filename);
1002: my @due_file = <$temp_file>;
1003: $due_file_content = $due_file[$#due_file];
1004: chomp $due_file_content;
1005: }
1006:
1007: # We display the due date iff it is not the same as the last
1008: # duedate in problem header ($due_file_content), and
1009: # none of our parts displayed a duedate.
1010: #
1011: my $parts_with_displayduedate;
1012: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1013: $parts_with_displayduedate =
1014: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1015: } else {
1016: $parts_with_displayduedate = 0;
1017: }
1018: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1019: $temp_file = Apache::File->new('>'.$filename);
1020: print $temp_file "$duetime\n";
1021: if (not $env{'request.symb'} =~ m/\.page_/) {
1022: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1023: $frontmatter .= $begin_doc.
1024: '\textit{Due date: '.$duedate.'} '.$toc_line;
1025: } else {
1026: $frontmatter.= $begin_doc.$toc_line;
1027: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1028: }
1029: } else {
1.381 albertel 1030: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 1031: }
1032: } else {
1033: if (not $env{'request.symb'} =~ m/\.page_/) {
1034: $frontmatter .= $begin_doc.$toc_line;
1035: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1036: } else {
1.381 albertel 1037: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1038: }
1039: }
1040: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1041: }
1042:
1.159 albertel 1043: my $status=$Apache::inputtags::status['-1'];
1044: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1045: $target eq 'tex') {
1.249 albertel 1046: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1047: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1048: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1049: &Apache::inputtags::grade;
1.324 albertel 1050: } elsif ($status eq 'NEEDS_CHECKIN') {
1051: # no need to grade, and don't want to hide data
1.249 albertel 1052: } else {
1053: # move any submission data to .hidden
1054: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1055: }
1.159 albertel 1056: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1057: $Apache::inputtags::part eq '0' &&
1.252 albertel 1058: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1059: # if part is zero, no <part>s existed, so we need show the current
1060: # grading status
1061: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1062: $result.= $gradestatus;
1063: }
1064: if (
1.284 albertel 1065: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1066: ($target eq 'answer') || ($target eq 'tex')
1067: ) {
1.227 albertel 1068: if ($target ne 'tex' &&
1.284 albertel 1069: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1070: $result.="</form>";
1.348 albertel 1071: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1072: }
1073: if ($target eq 'web') {
1.346 albertel 1074: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1075: } elsif ($target eq 'tex') {
1.178 sakharuk 1076: my $endminipage = '';
1.284 albertel 1077: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1078: $endminipage = '\end{minipage}';
1079: }
1.284 albertel 1080: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1081: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1082: } else {
1.262 sakharuk 1083: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1084: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1085: $result .= $endminipage.'\end{document} ';
1086: } else {
1.382 albertel 1087: $result .= $endminipage;
1.262 sakharuk 1088: }
1.159 albertel 1089: }
1090: }
1091: }
1092: if ($target eq 'grade') {
1093: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1094: &finalize_storage();
1095: }
1.284 albertel 1096: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1097: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1098: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1099: # normally we get it from above, but in CSTR
1.172 albertel 1100: # we always show answer mode too.
1.159 albertel 1101: }
1102: } elsif ($target eq 'meta') {
1103: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1104: @Apache::inputtags::response=();
1.159 albertel 1105: $result=&Apache::response::mandatory_part_meta;
1106: }
1.215 albertel 1107: $result.=&Apache::response::meta_part_order();
1.258 albertel 1108: $result.=&Apache::response::meta_response_order();
1.159 albertel 1109: } elsif ($target eq 'edit') {
1110: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1111: $result .= &problem_edit_footer();
1.320 albertel 1112: } elsif ($target eq 'modified') {
1113: $result .= $token->[2];
1.159 albertel 1114: }
1.155 albertel 1115:
1.284 albertel 1116: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1117: &Apache::inputtags::check_for_duplicate_ids();
1118: }
1.204 albertel 1119:
1120: &reset_problem_globals('problem');
1.159 albertel 1121:
1122: return $result;
1.48 albertel 1123: }
1124:
1.108 albertel 1125:
1.48 albertel 1126: sub start_library {
1.159 albertel 1127: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1128: my ($result,$form_tag_start);
1.371 albertel 1129: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1130: &init_problem_globals('library');
1131: $Apache::lonhomework::type='problem';
1132: }
1.159 albertel 1133: if ($target eq 'edit') {
1.343 albertel 1134: ($result,$form_tag_start)=
1135: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1136: 'Edit');
1137: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1138: my $temp=&Apache::edit::insertlist($target,$token);
1139: $result.=$temp;
1140: } elsif ($target eq 'modified') {
1141: $result=$token->[4];
1.340 albertel 1142: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1143: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1144: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1145: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1146: ($result,$form_tag_start)=
1147: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1148: $name);
1.159 albertel 1149: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1150: $result.=" \n $form_tag_start".
1.159 albertel 1151: '<input type="hidden" name="submitted" value="yes" />';
1152: $result.=&problem_web_to_edit_header($rndseed);
1153: }
1154: return $result;
1.48 albertel 1155: }
1156:
1157: sub end_library {
1.159 albertel 1158: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1159: my $result='';
1160: if ($target eq 'edit') {
1161: $result=&problem_edit_footer();
1.371 albertel 1162: } elsif ($target eq 'web'
1163: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1164: && $env{'request.state'} eq "construct") {
1.349 albertel 1165: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1166: }
1.371 albertel 1167: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1168: &reset_problem_globals('library');
1169: }
1.159 albertel 1170: return $result;
1.197 www 1171: }
1172:
1173: sub start_definetag {
1.326 albertel 1174: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1175:
1176: my $result;
1177:
1178: my $name = $token->[2]->{'name'};
1.326 albertel 1179: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1180: if ($target eq 'web') {
1181: if ($name=~/^\//) {
1182: $result=
1183: '<br /><table class="LC_sty_end"><tr><th>'.
1184: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1185: } else {
1186: $result=
1187: '<br /><table class="LC_sty_begin"><tr><th>'.
1188: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1189: }
1190: $skip = &HTML::Entities::encode($skip, '<>&"');
1191: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1192: }
1193: return $result;
1194: }
1195:
1196: sub end_definetag {
1197: return '';
1.1 albertel 1198: }
1199:
1200: sub start_block {
1.201 albertel 1201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1202:
1203: my $result;
1.1 albertel 1204:
1.339 albertel 1205: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1206: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1207: my $code = $token->[2]->{'condition'};
1.385 albertel 1208: if (defined($code) && $code ne '') {
1.137 albertel 1209: if (!$Apache::lonxml::default_homework_loaded) {
1210: &Apache::lonxml::default_homework_load($safeeval);
1211: }
1.131 albertel 1212: $result = &Apache::run::run($code,$safeeval);
1213: &Apache::lonxml::debug("block :$code: returned :$result:");
1214: } else {
1215: $result='1';
1216: }
1217: if ( ! $result ) {
1.201 albertel 1218: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1219: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1220: }
1221: $result='';
1222: } elsif ($target eq 'edit') {
1223: $result .=&Apache::edit::tag_start($target,$token);
1224: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1225: $token,40);
1226: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1227: } elsif ($target eq 'modified') {
1228: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1229: $safeeval,'condition');
1230: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1231: }
1.131 albertel 1232: return $result;
1.1 albertel 1233: }
1234:
1235: sub end_block {
1.167 www 1236: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1237: my $result;
1238: if ($target eq "edit") {
1239: $result.= &Apache::edit::tag_end($target,$token,'');
1240: }
1241: return $result;
1242: }
1243:
1244: sub start_languageblock {
1.201 albertel 1245: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1246:
1247: my $result;
1248:
1.339 albertel 1249: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1250: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1251: my $include = $token->[2]->{'include'};
1252: my $exclude = $token->[2]->{'exclude'};
1.398 www 1253: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1254: # This should not even happen, since we should at least have the server language
1.398 www 1255: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1256: # Now loop over all languages in order of preference
1257: foreach my $preferred_language (@preferred_languages) {
1.394 www 1258: # If the languageblock has no arguments, show the contents
1.399 www 1259: $result=1;
1260: my $found=0;
1.394 www 1261: # Do we have an include argument?
1.398 www 1262: if ($include) {
1.394 www 1263: # If include is specified, by default, don't render the block
1.399 www 1264: $result=0;
1.398 www 1265: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1266: # ... but if my preferred language is included, render it
1.398 www 1267: if ($included_language eq $preferred_language) {
1.399 www 1268: $result=1;
1269: $found=1;
1.398 www 1270: }
1271: }
1272: }
1.394 www 1273: # Do we have an exclude argument?
1.398 www 1274: if ($exclude) {
1.399 www 1275: $result=1;
1.398 www 1276: foreach my $excluded_language (split(/\,/,$exclude)) {
1277: if ($excluded_language eq $preferred_language) {
1.399 www 1278: $result=0;
1279: $found=1;
1.398 www 1280: }
1281: }
1282: }
1.399 www 1283: if ($found) { last; }
1.398 www 1284: }
1.201 albertel 1285: if ( ! $result ) {
1286: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1287: $style);
1288: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1289: }
1290: $result='';
1.167 www 1291: } elsif ($target eq 'edit') {
1292: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1293: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1294: $token,40);
1.211 albertel 1295: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1296: $token,40);
1297: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1298: } elsif ($target eq 'modified') {
1299: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1300: $safeeval,'include',
1301: 'exclude');
1.167 www 1302: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1303: }
1304: return $result;
1305: }
1306:
1307: sub end_languageblock {
1.170 www 1308: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1309: my $result;
1.201 albertel 1310: if ($target eq "edit") {
1.170 www 1311: $result.= &Apache::edit::tag_end($target,$token,'');
1312: }
1313: return $result;
1314: }
1315:
1.397 albertel 1316: {
1317: my %available_texts;
1318: sub start_translated {
1319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1320: &Apache::lonxml::register('Apache::structuretags',('lang'));
1321: undef(%available_texts);
1322: }
1323:
1324: sub end_translated {
1325: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1326: my $result;
1327: #show the translation on viewable targets
1328: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1329: # or non-viewable targets, if it's embedded in something that
1330: # wants the output
1331: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1332: && &Apache::lonxml::in_redirection() ) ) {
1333: my @possibilities = keys(%available_texts);
1334: my $which =
1335: &Apache::loncommon::languages(\@possibilities) || 'default';
1336: $result = $available_texts{$which};
1337: }
1338: undef(%available_texts);
1339: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1340: return $result;
1341: }
1342:
1343:
1344: sub start_lang {
1345: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1346: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1347: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1348: &Apache::lonxml::startredirection();
1349: }
1350: return '';
1351: }
1352:
1353: sub end_lang {
1354: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1355: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1356: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1357: my $result = &Apache::lonxml::endredirection();
1358: my $which = &Apache::lonxml::get_param('which',$parstack,
1359: $safeeval);
1360: $available_texts{$which} = $result;
1361: }
1362: return '';
1363: }
1364: }
1365:
1.170 www 1366: sub start_instructorcomment {
1.201 albertel 1367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1368:
1369: my $result;
1370:
1.339 albertel 1371: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1372: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1373: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1374: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1375: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1376: $parser,$style);
1.170 www 1377: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1378: }
1379: $result='';
1380: } elsif ($target eq 'edit') {
1381: $result .=&Apache::edit::tag_start($target,$token);
1382: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1383: }
1384: return $result;
1385: }
1386:
1387: sub end_instructorcomment {
1.159 albertel 1388: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1389: my $result;
1390: if ($target eq "edit") {
1391: $result.= &Apache::edit::tag_end($target,$token,'');
1392: }
1393: return $result;
1.4 tsai 1394: }
1395:
1396: sub start_while {
1.326 albertel 1397: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1398:
1.160 albertel 1399: my $result;
1.339 albertel 1400: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1401: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1402: my $code = $token->[2]->{'condition'};
1.4 tsai 1403:
1.160 albertel 1404: push( @Apache::structuretags::whileconds, $code);
1405: if (!$Apache::lonxml::default_homework_loaded) {
1406: &Apache::lonxml::default_homework_load($safeeval);
1407: }
1408: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1409: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1410: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1411: push( @Apache::structuretags::whileline, $token->[5]);
1412: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1413: if ( $result ) {
1414: &Apache::lonxml::newparser($parser,\$bodytext);
1415: }
1416: } elsif ($target eq 'edit') {
1417: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1418: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1419: $token,40);
1420: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1421: } elsif ($target eq 'modified') {
1422: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1423: $safeeval,'condition');
1424: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1425: }
1.160 albertel 1426: return $result;
1.4 tsai 1427: }
1428:
1429: sub end_while {
1.159 albertel 1430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1431: my $result;
1432:
1.339 albertel 1433: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1434: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1435: my $code = pop(@Apache::structuretags::whileconds);
1436: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1437: my $line = pop(@Apache::structuretags::whileline);
1438: my $return = &Apache::run::run($code,$safeeval);
1439: my $starttime=time;
1440: my $error=0;
1441: while ($return) {
1442: if (time-$starttime >
1443: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1444: $return = 0; $error=1; next;
1.161 albertel 1445: }
1446: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1447: if ($target eq 'grade' || $target eq 'answer' ||
1448: $target eq 'analyze') {
1449: # grade/answer/analyze should produce no output but if we
1450: # are redirecting, the redirecter should know what to do
1451: # with the output
1452: if (!$Apache::lonxml::redirection) { undef($result); }
1453: }
1.161 albertel 1454: $return = &Apache::run::run($code,$safeeval);
1455: }
1456: if ($error) {
1.270 albertel 1457: &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 1458: }
1459: } elsif ($target eq "edit") {
1460: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1461: }
1.160 albertel 1462: return $result;
1.1 albertel 1463: }
1.6 tsai 1464:
1.160 albertel 1465: # <randomlist show="1">
1.6 tsai 1466: # <tag1>..</tag1>
1467: # <tag2>..</tag2>
1468: # <tag3>..</tag3>
1.160 albertel 1469: # ...
1.6 tsai 1470: # </randomlist>
1471: sub start_randomlist {
1.326 albertel 1472: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1473: my $result;
1.339 albertel 1474: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1475: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1476: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1477: my $b_parser= HTML::LCParser->new(\$body);
1478: $b_parser->xml_mode(1);
1479: $b_parser->marked_sections(1);
1.159 albertel 1480: my $b_tok;
1481: my @randomlist;
1482: my $list_item;
1483: while($b_tok = $b_parser->get_token() ) {
1484: if($b_tok->[0] eq 'S') { # start tag
1485: # get content of the tag until matching end tag
1486: # get all text upto the matching tag
1487: # and push the content into @randomlist
1488: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1489: $b_parser);
1490: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1491: push(@randomlist,$list_item);
1492: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1493: # $list_item</b>";
1494: }
1495: if($b_tok->[0] eq 'T') { # text
1496: # what to do with text in between tags?
1497: # print "<b>TEXT $b_tok->[1]</b><br />";
1498: }
1499: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1500: # print "<b>END-TAG $b_tok->[1]</b><br />";
1501: # }
1502: }
1.303 albertel 1503: if (@randomlist) {
1504: my @idx_arr = (0 .. $#randomlist);
1505: &Apache::structuretags::shuffle(\@idx_arr);
1506: my $bodytext = '';
1507: my $show=$#randomlist;
1508: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1509: $showarg--;
1510: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1511: for(0 .. $show) {
1512: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1513: }
1514: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1515: }
1516: } elsif ($target eq 'edit' ) {
1517: $result .=&Apache::edit::tag_start($target,$token);
1518: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1519: $token,5);
1520: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1521: } elsif ($target eq 'modified' ) {
1522: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1523: $safeeval,'show');
1524: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1525: }
1526: return $result;
1.7 tsai 1527: }
1528:
1529: sub shuffle {
1530: my $a=shift;
1531: my $i;
1.303 albertel 1532: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1533: &Apache::response::pushrandomnumber();
1.159 albertel 1534: for($i=@$a;--$i;) {
1535: my $j=int(&Math::Random::random_uniform() * ($i+1));
1536: next if $i == $j;
1537: @$a[$i,$j] = @$a[$j,$i];
1538: }
1.251 albertel 1539: &Apache::response::poprandomnumber();
1.7 tsai 1540: }
1.6 tsai 1541: }
1542:
1543: sub end_randomlist {
1.159 albertel 1544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1545: my $result;
1546: if ($target eq 'edit' ) {
1547: $result=&Apache::edit::tag_end($target,$token,
1548: 'End Randomly Parsed Block');
1549: }
1550: return $result;
1.6 tsai 1551: }
1552:
1.283 albertel 1553: sub ordered_show_check {
1554: my $last_part=$Apache::inputtags::partlist[-2];
1555: my $in_order=
1556: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1557: my $in_order_show=1;
1558: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1559: $in_order_show=&Apache::response::check_status($last_part);
1560: }
1561: return $in_order_show;
1562: }
1563:
1.11 albertel 1564: sub start_part {
1.326 albertel 1565: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1566: if (!$Apache::lonxml::metamode) {
1567: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1568: # duedates.
1569: }
1.159 albertel 1570: my $result='';
1.386 albertel 1571: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1572: $Apache::inputtags::part=$id;
1.177 albertel 1573: push(@Apache::inputtags::partlist,$id);
1574: @Apache::inputtags::response=();
1.159 albertel 1575: @Apache::inputtags::previous=();
1576: @Apache::inputtags::previous_version=();
1.405 albertel 1577: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1578: &Apache::response::reset_params();
1579:
1.159 albertel 1580: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1581: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1582: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1583: my $in_order_show=&ordered_show_check();
1.214 albertel 1584: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1585: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1586: &Apache::run::run($expression,$safeeval);
1.159 albertel 1587:
1588: if ($target eq 'meta') {
1.224 www 1589: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1590: return &Apache::response::mandatory_part_meta.
1591: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1592: } elsif ($target eq 'web' || $target eq 'grade' ||
1593: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1594: if ($hidden || !$in_order_show) {
1.326 albertel 1595: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1596: } else {
1597: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1598: push (@Apache::inputtags::status,$status);
1599: my $expression='$external::datestatus="'.$status.'";';
1600: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1601: &Apache::run::run($expression,$safeeval);
1.284 albertel 1602: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1603: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1604: }
1.216 albertel 1605: if (( $status eq 'CLOSED' ) ||
1606: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1607: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1608: ( $status eq 'BANNED') ||
1609: ( $status eq 'UNAVAILABLE') ||
1610: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1611: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1612: $style);
1.159 albertel 1613: if ( $target eq "web" ) {
1.211 albertel 1614: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1615: } elsif ( $target eq 'tex' ) {
1.284 albertel 1616: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1617: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1618: } else {
1.211 albertel 1619: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1620: }
1.159 albertel 1621: }
1622: } else {
1623: if ($target eq 'tex') {
1.284 albertel 1624: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1625: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1626: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1627: } else {
1628: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1629: }
1.195 sakharuk 1630: }
1.159 albertel 1631: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1632: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1633: my @allkeys = split /,/,$allkeys;
1634: my $allow_print_points = 0;
1635: foreach my $partial_key (@allkeys) {
1.230 albertel 1636: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1637: if ($1 ne '0') {$allow_print_points=1;}
1638: }
1639: }
1.275 albertel 1640: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1641: if (defined($maxtries) && $maxtries < 0) {
1642: $allow_print_points=0;
1643: }
1.302 albertel 1644: if (lc($env{'course.'.$env{'request.course.id'}.
1645: '.disableexampointprint'}) eq 'yes') {
1646: $allow_print_points=0;
1647: }
1.222 sakharuk 1648: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1649: } elsif ($target eq 'web') {
1.356 www 1650: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1651: }
1652: }
1653: }
1654: } elsif ($target eq 'edit') {
1655: $result.=&Apache::edit::tag_start($target,$token);
1656: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1657: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1658: ' '.
1659: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1660: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1661: } elsif ($target eq 'modified') {
1662: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1663: $safeeval,'id','display');
1.159 albertel 1664: if ($constructtag) {
1.225 albertel 1665: #limiting ids to only letters numbers, and space
1.224 www 1666: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1667: $result = &Apache::edit::rebuild_tag($token);
1668: }
1669: }
1670: return $result;
1.11 albertel 1671: }
1672:
1673: sub end_part {
1.159 albertel 1674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1675: &Apache::lonxml::debug("in end_part $target ");
1676: my $status=$Apache::inputtags::status['-1'];
1677: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1678: my $in_order_show=&ordered_show_check();
1.321 albertel 1679: my $result;
1680: if (!$Apache::lonxml::metamode) {
1681: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1682: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1683: }
1.312 albertel 1684: if ($target eq 'grade') {
1.249 albertel 1685: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1686: !$hidden && $in_order_show) {
1.311 foxr 1687: $result.=&Apache::inputtags::grade;
1.249 albertel 1688: } else {
1689: # move any submission data to .hidden
1690: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1691: }
1.283 albertel 1692: } elsif (($target eq 'web' || $target eq 'tex') &&
1693: !$hidden && $in_order_show) {
1.159 albertel 1694: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1695: $target);
1.212 albertel 1696: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1697: $gradestatus='';
1698: }
1.311 foxr 1699: $result.=$gradestatus;
1.265 sakharuk 1700: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1701: } elsif ($target eq 'edit') {
1.311 foxr 1702: $result.=&Apache::edit::end_table();
1.322 albertel 1703: } elsif ($target eq 'modified') {
1704: $result .= $token->[2];
1.159 albertel 1705: }
1706: pop @Apache::inputtags::status;
1707: $Apache::inputtags::part='';
1.295 albertel 1708: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1709: return $result;
1.11 albertel 1710: }
1.1 albertel 1711:
1.25 albertel 1712: sub start_preduedate {
1.326 albertel 1713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1714: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1715: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1716: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1717: if (!$Apache::lonhomework::scantronmode &&
1718: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1719: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1720: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1721: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1722: }
1.24 albertel 1723: }
1.159 albertel 1724: return '';
1.24 albertel 1725: }
1726:
1.25 albertel 1727: sub end_preduedate {
1.159 albertel 1728: return '';
1.24 albertel 1729: }
1730:
1.369 foxr 1731: # In all the modes where <postanswerdate> text is
1732: # displayable, all we do is eat up the text between the start/stop
1733: # tags if the conditions are not right to display it.
1.25 albertel 1734: sub start_postanswerdate {
1.326 albertel 1735: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1736: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1737: &Apache::lonnet::allowed('pav',
1738: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1739: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1740: $target eq 'tex' ) {
1.300 albertel 1741: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1742: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1743: (($target eq 'tex') && !$pav)) {
1.326 albertel 1744: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1745: }
1746: }
1747: return '';
1.24 albertel 1748: }
1749:
1.25 albertel 1750: sub end_postanswerdate {
1.159 albertel 1751: return '';
1.24 albertel 1752: }
1753:
1.25 albertel 1754: sub start_notsolved {
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' ||
1.339 albertel 1757: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1758: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1759: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1760: if ($gradestatus =~ /^correct/ &&
1761: &Apache::response::show_answer()) {
1.159 albertel 1762: &Apache::lonxml::debug("skipping");
1.326 albertel 1763: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1764: }
1.24 albertel 1765: }
1.159 albertel 1766: return '';
1.24 albertel 1767: }
1768:
1.25 albertel 1769: sub end_notsolved {
1.159 albertel 1770: return '';
1.24 albertel 1771: }
1772:
1773: sub start_solved {
1.326 albertel 1774: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1775: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1776: $target eq 'tex') {
1777: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1778: if ($gradestatus !~ /^correct/ ||
1779: !&Apache::response::show_answer()) {
1.326 albertel 1780: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1781: }
1.24 albertel 1782: }
1.159 albertel 1783: return '';
1.24 albertel 1784: }
1785:
1786: sub end_solved {
1.248 albertel 1787: return '';
1788: }
1789:
1790: sub start_problemtype {
1.326 albertel 1791: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1792: my $result;
1.339 albertel 1793: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1794: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1795: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1796: if (!defined($mode)) { $mode='show'; }
1797: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1798: my $found=0;
1799: foreach my $type (split(',',$for)) {
1800: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1801: }
1802: if ($mode eq 'show' && !$found) {
1.326 albertel 1803: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1804: }
1805: if ($mode eq 'hide' && $found) {
1.326 albertel 1806: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1807: }
1808: } elsif ($target eq 'edit') {
1809: $result .=&Apache::edit::tag_start($target,$token);
1810: $result.=&Apache::edit::select_arg('Mode:','mode',
1811: [['show','Show'],
1812: ['hide','Hide']]
1813: ,$token);
1814: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1815: [ ['exam','Exam/Quiz Problem'],
1816: ['survey','Survey'],
1817: ['problem','Homework Problem'] ]
1818: ,$token);
1819: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1820: } elsif ($target eq 'modified') {
1821: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1822: $safeeval,'mode','for');
1823: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1824: }
1825: return $result;
1826: }
1827:
1828: sub end_problemtype {
1.159 albertel 1829: return '';
1.24 albertel 1830: }
1.34 albertel 1831:
1832: sub start_startouttext {
1.159 albertel 1833: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1834: my @result=(''.'');
1835: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1836:
1837: my $nesting =
1838: &Apache::lonxml::set_state('outtext',
1839: &Apache::lonxml::get_state('outtext')+1);
1840: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1841: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1842: }
1.159 albertel 1843: return (@result);
1.34 albertel 1844: }
1.159 albertel 1845:
1.34 albertel 1846: sub end_startouttext {
1.326 albertel 1847: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1848: my $result='';
1849: my $text='';
1850:
1851: if ($target eq 'edit') {
1.326 albertel 1852: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.211 albertel 1853: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
1854: <td>".&mt('Delete:').
1.159 albertel 1855: &Apache::edit::deletelist($target,$token)
1856: ."</td>
1.42 albertel 1857: <td>".
1.159 albertel 1858: &Apache::edit::insertlist($target,$token).
1.362 albertel 1859: '</td><td align="right" valign="top">' .
1860: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1861: &Apache::edit::end_row().
1.362 albertel 1862: &Apache::edit::start_spanning_row()."\n".
1.255 www 1863: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1864: }
1865: if ($target eq 'modified') {
1.219 albertel 1866: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1867: }
1868: if ($target eq 'tex') {
1869: $result .= '\noindent ';
1870: }
1871: return $result;
1.34 albertel 1872: }
1.159 albertel 1873:
1.34 albertel 1874: sub start_endouttext {
1.159 albertel 1875: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1876: my $result='';
1877: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1878: if ($target eq "modified") {
1879: $result='<endouttext />'.
1.377 albertel 1880: &Apache::edit::handle_insertafter('startouttext');
1881: }
1.404 albertel 1882:
1883: my $nesting =
1884: &Apache::lonxml::set_state('outtext',
1885: &Apache::lonxml::get_state('outtext')-1);
1886: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1887: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1888: &Apache::lonxml::set_state('outtext', 0);
1889: }
1.159 albertel 1890: return $result;
1.34 albertel 1891: }
1.159 albertel 1892:
1.34 albertel 1893: sub end_endouttext {
1.159 albertel 1894: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1895: my @result=('','');
1896: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1897: return (@result);
1.34 albertel 1898: }
1.159 albertel 1899:
1.45 albertel 1900: sub delete_startouttext {
1.326 albertel 1901: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1902: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1903: my $text=$$parser['-1']->get_text("/endouttext");
1904: my $ntoken=$$parser['-1']->get_token();
1905: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1906: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1907: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1908: # they did the last time round
1909: &Apache::lonxml::increasedepth($ntoken);
1910: &Apache::lonxml::decreasedepth($ntoken);
1911: return 1;
1.193 www 1912: }
1913:
1914: sub start_simpleeditbutton {
1915: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1916: my $result='';
1.284 albertel 1917: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1918: ($target eq 'web') &&
1.330 albertel 1919: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1920: my $url=$env{'request.noversionuri'};
1.193 www 1921: $url=~s/\?.*$//;
1.367 albertel 1922: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1923: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1924: '<a href="'.$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 1925: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1926: }
1927: return $result;
1928: }
1929:
1930: sub end_simpleeditbutton {
1931: return '';
1.45 albertel 1932: }
1.34 albertel 1933:
1.1 albertel 1934: 1;
1935: __END__
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