Annotation of loncom/homework/structuretags.pm, revision 1.434
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.434 ! foxr 4: # $Id: structuretags.pm,v 1.433 2008/10/24 16:22:54 bisitz 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;
1.434 ! foxr 39: use Apache::londefdef;
1.338 albertel 40: use Apache::lonenc();
1.267 albertel 41: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 42: use lib '/home/httpd/lib/perl/';
43: use LONCAPA;
44:
1.78 harris41 45: BEGIN {
1.397 albertel 46: &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 47: }
48:
49: sub start_web {
1.326 albertel 50: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 51: if ($target ne 'edit' && $target ne 'modified') {
52: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
53: if ($target eq 'web' || $target eq 'webgrade') {
54: return $bodytext;
55: }
56: } elsif ($target eq "edit" ) {
57: my $bodytext =
58: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
59: my $result = &Apache::edit::tag_start($target,$token);
60: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
61: return $result;
62: } elsif ( $target eq "modified" ) {
63: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 64: }
65: return '';
1.10 albertel 66: }
67:
68: sub end_web {
1.44 ng 69: return '';
1.10 albertel 70: }
71:
72: sub start_tex {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 74: my $result='';
1.383 albertel 75: if ($target ne 'edit' && $target ne 'modified') {
76: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
77: if ($target eq 'tex') {
1.434 ! foxr 78:
! 79: # If inside a table, occurrences of \\ must be removed;
! 80: # else the table blows up.
! 81:
! 82: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
! 83: $bodytext =~ s/\\\\//g;
! 84: }
1.432 foxr 85: return $bodytext.'{}';
1.383 albertel 86: }
87: } elsif ($target eq "edit" ) {
88: my $bodytext =
89: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
90: my $result = &Apache::edit::tag_start($target,$token);
91: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
92: return $result;
93: } elsif ( $target eq "modified" ) {
94: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 95: }
1.198 sakharuk 96: return $result;;
1.10 albertel 97: }
98:
99: sub end_tex {
1.44 ng 100: return '';
1.9 albertel 101: }
102:
1.400 albertel 103: sub homework_js {
104: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 105: &setmode_javascript().
1.400 albertel 106: <<'JS';
107: <script type="text/javascript">
108: function setSubmittedPart (part) {
109: this.document.lonhomework.submitted.value="part_"+part;
110: }
111:
112: function image_response_click (which, e) {
113: init_geometry();
114: if (!e) { e = window.event; } //IE
115: var input_element = document.lonhomework.elements[which];
1.401 albertel 116: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 117: var token = token_element.value;
1.401 albertel 118: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 119: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
120: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
121: var click = x+':'+y;
122: input_element.value = click;
123: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
124: }
1.416 raeburn 125:
1.400 albertel 126: </script>
127: JS
128: }
129:
1.416 raeburn 130: sub setmode_javascript {
131: return <<"ENDSCRIPT";
132: <script type="text/javascript">
133: function setmode(form,probmode) {
134: form.problemmode.value = probmode;
135: form.submit();
136: }
137: </script>
138: ENDSCRIPT
139: }
140:
1.48 albertel 141: sub page_start {
1.345 albertel 142: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
143: $extra_head)=@_;
1.159 albertel 144: my %found;
1.207 albertel 145: foreach my $taginside (@$tagstack) {
1.159 albertel 146: foreach my $taglookedfor ('html','body','form') {
147: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
148: }
149: }
150:
1.343 albertel 151: if ($target eq 'tex') {
152: return
153: &Apache::londefdef::start_html($target,$token,$tagstack,
154: $parstack,$parser,$safeeval);
155: }
156:
1.400 albertel 157: $extra_head .= &homework_js();
1.374 albertel 158:
1.434 ! foxr 159: if ($env{'environment.wysiwygeditor'} eq 'on') {
! 160: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
! 161: } else {
! 162: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 163: }
164:
1.344 albertel 165: my %body_args;
166: if (defined($found{'html'})) {
167: $body_args{'skip_phases'}{'head'}=1;
168: } else {
1.343 albertel 169:
1.345 albertel 170: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 171:
1.379 albertel 172: $extra_head .= &Apache::londefdef::generate_css_links();
173:
1.384 albertel 174: if ($env{'request.state'} eq 'construct') {
1.343 albertel 175: $extra_head.=&Apache::edit::js_change_detection().
176: "<script type=\"text/javascript\">\n".
177: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
178: &Apache::loncommon::browser_and_searcher_javascript().
179: "\n</script>\n";
180: }
1.159 albertel 181: }
1.343 albertel 182:
1.344 albertel 183: if (defined($found{'body'})) {
184: $body_args{'skip_phases'}{'body'}=1;
185: } elsif (!defined($found{'body'})
186: && $env{'request.state'} eq 'construct') {
1.343 albertel 187: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 188: if ($env{'environment.remote'} ne 'off') {
189: $body_args{'only_body'} = 1;
190: }
1.297 albertel 191: }
1.272 albertel 192: } elsif (!defined($found{'body'})) {
1.343 albertel 193: my %add_entries;
1.159 albertel 194: my $background=&Apache::lonxml::get_param('background',$parstack,
195: $safeeval);
1.343 albertel 196: if ($background ne '' ) {
197: $add_entries{'background'} = $background;
198: }
1.344 albertel 199:
1.290 albertel 200: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
201: $safeeval);
1.344 albertel 202: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
203:
204: $body_args{'bgcolor'} = $bgcolor;
205: $body_args{'no_title'} = 1;
206: $body_args{'force_register'} = 1;
207: $body_args{'add_entries'} = \%add_entries;
1.391 albertel 208: if ($env{'environment.remote'} eq 'off'
209: && $env{'request.state'} eq 'construct') {
210: $body_args{'only_body'} = 1;
211: }
1.344 albertel 212: }
1.365 albertel 213: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 214: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
215: \%body_args);
216:
217: if (!defined($found{'body'})
218: && $env{'request.state'} ne 'construct'
219: && ($target eq 'web' || $target eq 'webgrade')) {
220:
1.367 albertel 221: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.344 albertel 222: if ($symb eq '' && !$publicuser) {
223: my $help = &Apache::loncommon::help_open_topic("Ambiguous_Reference");
224: $help=&mt("Browsing resource, all submissions are temporary.")."<br />";
225: $page_start .= $help;
1.159 albertel 226: }
1.344 albertel 227: }
228:
1.409 albertel 229: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 230: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 231: }
1.344 albertel 232:
1.159 albertel 233: my $form_tag_start;
234: if (!defined($found{'form'})) {
1.337 albertel 235: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.338 albertel 236: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.327 albertel 237: $form_tag_start.=$uri.'" ';
238: if ($target eq 'edit') {
239: $form_tag_start.=&Apache::edit::form_change_detection();
240: }
1.368 albertel 241: $form_tag_start.='>'."\n";
1.355 albertel 242:
243: my $symb=&Apache::lonnet::symbread();
244: if ($symb =~ /\S/) {
245: $symb=
246: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
247: $form_tag_start.=
1.368 albertel 248: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 249: }
1.159 albertel 250: }
1.343 albertel 251: return ($page_start,$form_tag_start);
1.105 albertel 252: }
253:
1.141 matthew 254: #use Time::HiRes();
1.105 albertel 255: sub get_resource_name {
1.159 albertel 256: my ($parstack,$safeeval)=@_;
1.388 foxr 257: my $name;
1.204 albertel 258: if (defined($Apache::lonhomework::name)) {
1.388 foxr 259: $name = $Apache::lonhomework::name;
260: } else {
261: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 262: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 263: if ($name eq '') {
264: $name=&Apache::lonnet::EXT('resource.title');
265: if ($name eq 'con_lost') { $name = ''; }
266: }
267: if ($name!~/\S+/) {
268: $name=$env{'request.uri'};
269: $name=~s-.*/([^/]+)$-$1-;
270: }
271: # The name has had html tags escaped:
272:
273: $name=~s/</</gs;
274: $name=~s/>/>/gs;
275:
276: $Apache::lonhomework::name=$name;
1.204 albertel 277: }
1.159 albertel 278: return $name;
1.105 albertel 279: }
280:
281: sub setup_rndseed {
1.159 albertel 282: my ($safeeval)=@_;
283: my $rndseed;
1.367 albertel 284: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 285: if ($env{'request.state'} eq "construct"
286: || $symb eq ''
287: || $Apache::lonhomework::type eq 'practice'
288: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 289: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 290: ['rndseed']);
1.284 albertel 291: $rndseed=$env{'form.rndseed'};
1.159 albertel 292: if (!$rndseed) {
1.162 albertel 293: $rndseed=$Apache::lonhomework::history{'rndseed'};
294: if (!$rndseed) {
295: $rndseed=time;
296: }
1.284 albertel 297: $env{'form.rndseed'}=$rndseed;
1.162 albertel 298: }
1.374 albertel 299: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
300: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 301: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 302: srand(time);
303: $rndseed=int(rand(2100000000));
1.284 albertel 304: $env{'form.rndseed'}=$rndseed;
305: delete($env{'form.resetdata'});
306: delete($env{'form.newrandomization'});
1.159 albertel 307: }
1.187 albertel 308: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 309: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 310: }
1.247 albertel 311: if ($Apache::lonhomework::history{'resource.CODE'}) {
312: $rndseed=&Apache::lonnet::rndseed();
313: }
1.221 albertel 314: if ($safeeval) {
315: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 316: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 317: }
1.159 albertel 318: }
319: return $rndseed;
1.105 albertel 320: }
321:
1.268 albertel 322: sub remember_problem_state {
323: return '
1.284 albertel 324: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
325: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
326: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 327: }
328:
1.423 www 329: sub problem_edit_buttons {
330: return '
1.408 albertel 331: <div class="LC_edit_problem_discards">
1.416 raeburn 332: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 333: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 334: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 335: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 336: </div>
337: <div class="LC_edit_problem_saves">
1.416 raeburn 338: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
339: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 340: </div>';
341: }
342:
343: sub problem_edit_header {
344: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
345: &Apache::structuretags::remember_problem_state().'
346: <div class="LC_edit_problem_header">
347: <div class="LC_edit_problem_header_title">
348: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
349: </div>'.
350: &problem_edit_buttons().'
1.408 albertel 351: <hr class="LC_edit_problem_divide" />
1.409 albertel 352: '.&Apache::lonxml::message_location().'
1.408 albertel 353: </div>
354: '.
1.282 albertel 355: '<table border="0" width="100%"><tr><td bgcolor="#DDDDDD">';
1.105 albertel 356: }
357:
358: sub problem_edit_footer {
1.412 albertel 359: return '</td></tr></table><br />
360: <div class="LC_edit_problem_footer">
1.423 www 361: <hr class="LC_edit_problem_divide" />'.
362: &problem_edit_buttons().'
1.412 albertel 363: <hr class="LC_edit_problem_divide" />
364: </div>
365: '.
366:
1.348 albertel 367: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 368: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 369: }
370:
1.235 albertel 371: sub option {
372: my ($value,$name) = @_;
373: my $result ="<option value='".$value."' ";
1.284 albertel 374: if ($env{'form.'.$name} eq $value) {
1.235 albertel 375: $result.=" selected='on' ";
376: }
377: $result.='>';
378: return $result;
379: }
380:
1.105 albertel 381: sub problem_web_to_edit_header {
1.159 albertel 382: my ($rndseed)=@_;
1.406 albertel 383: my $result .= '<div class="LC_edit_problem_header">';
384:
385: if (!$Apache::lonhomework::parsing_a_task) {
386: $result .=
387: '<div class="LC_edit_problem_header_title">'.
388: &mt('Problem Testing').
389: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
390: '</div>';
391: } else {
392: $result .=
393: '<div class="LC_edit_problem_header_title">'.
394: &mt('Task Testing').
395: '</div>';
396: }
397:
1.315 albertel 398: my $show_all_foils_text =
399: ($Apache::lonhomework::parsing_a_task) ?
400: &mt(' Show All Instances')
401: : &mt(' Show All Foils');
402:
1.406 albertel 403: my $show_all= '<span class="LC_nobreak"><label><input type="checkbox" name="showallfoils" ';
404: if (defined($env{'form.showallfoils'})) { $show_all.='checked="checked"'; }
405: $show_all.= ' />'.$show_all_foils_text.'</label></span>';
406:
407:
1.384 albertel 408:
1.406 albertel 409: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 410: if (!$Apache::lonhomework::parsing_a_task) {
411: $result.="
1.406 albertel 412: <div class='LC_edit_problem_header_row1'>
413: <span class=\"LC_nobreak\">
1.405 albertel 414: ".&mt("Problem Status:")."
1.235 albertel 415: <select name='problemstate'>
1.270 albertel 416: <option value=''></option>
1.235 albertel 417: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
418: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
419: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
420: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
421: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
422: </select>
1.406 albertel 423: </span>
424: <span class=\"LC_nobreak\">
1.405 albertel 425: ".&mt("Problem Type:")."
1.235 albertel 426: <select name='problemtype'>
1.270 albertel 427: <option value=''></option>
1.242 albertel 428: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 429: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 430: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 431: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 432: </select>
1.406 albertel 433: </span>
434: $show_all
435: </div>
436: <div class='LC_edit_problem_header_row2'>
437: <span class=\"LC_nobreak\">
1.405 albertel 438: ".&mt("Feedback Mode:")."
1.235 albertel 439: <select name='problemstatus'>
440: <option value=''></option>
1.242 albertel 441: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 442: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
443: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 444: </select>
1.406 albertel 445: </span>
446: ";
447:
1.376 albertel 448: } elsif ($Apache::lonhomework::parsing_a_task) {
449: $result.="
1.406 albertel 450: <div class='LC_edit_problem_header_row1'>
451: <span class=\"LC_nobreak\">
1.405 albertel 452: ".&mt("Problem Status:")."
1.376 albertel 453: <select name='problemstate'>
454: <option value=''></option>
455: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
456: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
457: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
458: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
459: </select>
1.406 albertel 460: </span>
461: $show_all
462: ";
463: }
464: $result.='
465: <span class="LC_nobreak">
466: '.&mt('Apply style file: ').'
467: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
468: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
469: </span>
1.422 www 470: </div>
471: <div class="LC_edit_problem_header_row1">'.
472: &Apache::lonxml::renderingoptions().'
1.406 albertel 473: </div>
474: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
475: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
476: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
477: </div>
478: <hr class="LC_edit_problem_divide" />
479: <div class="LC_edit_problem_header_randomize_row">
480: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
481: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
482: <input type="text" name="rndseed" size="10" value="'.
483: $rndseed.'"
484: onchange="javascript:document.lonhomework.changerandseed.click()" />';
485:
486: if (!$Apache::lonhomework::parsing_a_task) {
487: my $numtoanalyze=$env{'form.numtoanalyze'};
488: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 489: $result .= '<span class="LC_nobreak">'.
490: &mt('[_1] for [_2] versions.',
1.416 raeburn 491: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 492: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
493: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 494: $numtoanalyze.'" size="5" />').
495: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
496: '</span>';
497:
1.313 albertel 498: }
1.406 albertel 499:
500: $result.='
501: </div>
1.408 albertel 502: <div class="LC_edit_problem_header_edit_row">';
1.416 raeburn 503: $result.='<input type="hidden" name="problemmode" value="view" />';
504: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
505: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
506: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
507: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 508: $result.='
509: </div>
1.409 albertel 510: '.&Apache::lonxml::message_location().'
1.406 albertel 511: </div>';
1.159 albertel 512: return $result;
1.48 albertel 513: }
514:
1.65 albertel 515: sub initialize_storage {
1.357 albertel 516: my ($given_symb) = @_;
1.353 albertel 517: undef(%Apache::lonhomework::results);
518: undef(%Apache::lonhomework::history);
1.357 albertel 519: my ($symb,$courseid,$domain,$name) =
1.367 albertel 520: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 521:
522: # anonymous users (CODEd exams) have no data
523: if ($name eq 'anonymous'
524: && !defined($domain)) {
525: return;
526: }
527:
1.333 albertel 528: if ($env{'request.state'} eq 'construct'
529: || $symb eq ''
530: || $Apache::lonhomework::type eq 'practice') {
531:
532: my $namespace = $symb || $env{'request.uri'};
533: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 534: ($env{'form.resetdata'} eq &mt('New Problem Variation')
535: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 536: $env{'form.newrandomization'} eq &mt('New Randomization')) {
537: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
538: &Apache::lonxml::debug("Attempt reset");
539: }
1.159 albertel 540: %Apache::lonhomework::history=
1.333 albertel 541: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 542: my ($temp)=keys %Apache::lonhomework::history ;
543: &Apache::lonxml::debug("Return message of $temp");
544: } else {
545: %Apache::lonhomework::history=
546: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
547: }
1.353 albertel 548:
1.159 albertel 549: #ignore error conditions
1.67 albertel 550: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 551: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 552: }
553:
554: # -------------------------------------------------------------finalize_storage
555: # Stores away the result has to a student's environment
556: # checks form.grade_ for specific values, other wises stores
557: # to the running users environment
1.285 raeburn 558: # Will increment totals for attempts, students, and corrects
559: # if running user has student role.
1.65 albertel 560: sub finalize_storage {
1.357 albertel 561: my ($given_symb) = @_;
1.159 albertel 562: my $result;
1.289 albertel 563: if (%Apache::lonhomework::results) {
1.323 albertel 564: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
565: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 566: my ($symb,$courseid,$domain,$name) =
1.367 albertel 567: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 568: if ($env{'request.state'} eq 'construct'
569: || $symb eq ''
570: || $Apache::lonhomework::type eq 'practice') {
571: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 572: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 573: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 574: $namespace,'',$domain,$name);
1.159 albertel 575: &Apache::lonxml::debug('Construct Store return message:'.$result);
576: } else {
577: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
578: $symb,$courseid,$domain,$name);
579: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 580: if ($env{'request.role'} =~/^st/) {
581: &store_aggregates($symb,$courseid);
582: }
1.159 albertel 583: }
1.323 albertel 584: } else {
585: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 586: }
1.159 albertel 587: return $result;
1.65 albertel 588: }
589:
1.285 raeburn 590: # -------------------------------------------------------------store_aggregates
591: # Sends hash of values to be incremented in nohist_resourcetracker.db
592: # for the course. Increments total number of attempts, unique students
593: # and corrects for each part for an instance of a problem, as appropriate.
594: sub store_aggregates {
595: my ($symb,$courseid) = @_;
1.286 albertel 596: my %aggregate;
597: my @parts;
1.288 albertel 598: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
599: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 600: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 601: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 602: push(@parts, $1);
1.285 raeburn 603: }
604: }
1.286 albertel 605: foreach my $part (@parts) {
606: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
607: eq 'APPROX_ANS' ||
608: $Apache::lonhomework::results{'resource.'.$part.'.award'}
609: eq 'EXACT_ANS') {
1.287 albertel 610: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 611: }
1.286 albertel 612: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 613: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 614: } else {
1.293 albertel 615: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 616: if ($last_reset) {
1.293 albertel 617: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 618: $aggregate{$symb."\0".$part."\0users"} = 1;
619: }
620: }
1.285 raeburn 621: }
1.287 albertel 622: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 623: }
1.292 raeburn 624: if (keys (%aggregate) > 0) {
1.289 albertel 625: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 626: $cdomain,$cname);
627: }
628: }
1.289 albertel 629:
1.65 albertel 630: sub checkout_msg {
1.211 albertel 631: my %lt=&Apache::lonlocal::texthash(
632: 'resource'=>'The resource needs to be checked out',
633: '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.',
634: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
635: 'checkout'=>'Check out Exam for Viewing',
636: 'checkout?'=>'Check out Exam?');
1.352 albertel 637: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 638: return (<<ENDCHECKOUT);
1.211 albertel 639: <h2>$lt{'resource'}</h2>
640: <p>$lt{'id_expln'}</p>
641: <font color="red">
642: <p>$lt{'warning'}</p>
1.91 albertel 643: </font>
1.352 albertel 644: <form name="checkout" method="POST" action="$uri">
1.91 albertel 645: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 646: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 647: </form>
648: ENDCHECKOUT
649: }
650:
1.252 albertel 651: sub firstaccess_msg {
1.253 albertel 652: my ($time,$symb)=@_;
1.414 albertel 653: my $result;
654: my @interval=&Apache::lonnet::EXT("resource.0.interval");
655: if ($interval[1] eq 'map') {
656: my ($map)=&Apache::lonnet::decode_symb($symb);
657: my $foldertitle=&Apache::lonnet::gettitle($map);
658:
659: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 660: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
661: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
662: ,$foldertitle,$time)."</h2>";
1.414 albertel 663: } elsif ($interval[1] eq 'course') {
664: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 665: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
666: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
667: ,$course,$time)."</h2>";
1.414 albertel 668: } else {
669: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 670: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
671: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
672: ,$title,$time)."</h2>";
1.414 albertel 673: }
1.352 albertel 674: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 675: my $buttontext = &mt('Show Resource');
676: my $timertext = &mt('Start Timer?');
1.414 albertel 677: $result .= (<<ENDCHECKOUT);
1.352 albertel 678: <form name="markaccess" method="POST" action="$uri">
1.252 albertel 679: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 680: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 681: </form>
682: ENDCHECKOUT
1.414 albertel 683: return $result;
1.252 albertel 684: }
685:
1.204 albertel 686: sub init_problem_globals {
687: my ($type)=@_;
688: #initialize globals
1.308 foxr 689: # For problems, we start out in part 0 (outside a <part> tag).
690: # and part 0 is used to describe the main body of the <problem>
691: #
1.204 albertel 692: if ($type eq 'problem') {
693: $Apache::inputtags::part='0';
694: @Apache::inputtags::partlist=('0');
1.405 albertel 695: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 696: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 697:
1.266 albertel 698: } elsif ($type eq 'library') {
1.204 albertel 699: $Apache::inputtags::part='';
700: @Apache::inputtags::partlist=();
1.405 albertel 701: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 702: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 703:
1.304 albertel 704: } elsif ($type eq 'Task') {
705: $Apache::inputtags::part='0';
706: @Apache::inputtags::partlist=('0');
1.405 albertel 707: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 708: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 709: }
710: @Apache::inputtags::responselist = ();
711: @Apache::inputtags::importlist = ();
712: @Apache::inputtags::previous=();
713: @Apache::inputtags::previous_version=();
714: $Apache::structuretags::printanswer='No';
715: @Apache::structuretags::whileconds=();
716: @Apache::structuretags::whilebody=();
717: @Apache::structuretags::whileline=();
718: $Apache::lonhomework::scantronmode=0;
719: undef($Apache::lonhomework::name);
1.358 albertel 720: undef($Apache::lonhomework::default_type);
721: undef($Apache::lonhomework::type);
1.204 albertel 722: }
723:
724: sub reset_problem_globals {
725: my ($type)=@_;
726: undef(%Apache::lonhomework::history);
727: undef(%Apache::lonhomework::results);
728: undef($Apache::inputtags::part);
1.208 albertel 729: #don't undef this, lonhomework.pm takes care of this, we use this to
730: #detect if we try to do 2 problems in one file
731: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 732: undef($Apache::lonhomework::name);
1.358 albertel 733: undef($Apache::lonhomework::default_type);
734: undef($Apache::lonhomework::type);
735: undef($Apache::lonhomework::scantronmode);
736: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 737: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 738: }
739:
1.241 albertel 740: sub set_problem_state {
1.240 albertel 741: my ($part)=@_;
1.284 albertel 742: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 743: $Apache::lonhomework::history{"resource.$part.solved"}=
744: 'correct_by_student';
745: }
746: }
747:
1.241 albertel 748: sub get_problem_status {
749: my ($part)=@_;
1.267 albertel 750: my $problem_status;
1.284 albertel 751: if ($env{'request.state'} eq 'construct' &&
752: defined($env{'form.problemstatus'})) {
753: $problem_status=$env{'form.problemstatus'};
1.267 albertel 754: } else {
755: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
756: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 757: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 758: }
759: return $problem_status;
760: }
761:
1.9 albertel 762: sub start_problem {
1.326 albertel 763: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 764:
1.311 foxr 765: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 766: if (!$Apache::lonxml::metamode) {
767: &Apache::lonxml::startredirection();
768: }
1.311 foxr 769:
1.308 foxr 770: # Problems don't nest and we don't allow more than one <problem> in
771: # a .problem file.
772: #
1.184 albertel 773: if ( $Apache::inputtags::part ne '' ||
774: $Apache::lonhomework::parsing_a_problem) {
775: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 776: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 777: return '';
778: }
1.184 albertel 779:
780: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 781: &init_problem_globals('problem');
1.166 albertel 782:
1.284 albertel 783: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 784: $Apache::lonhomework::scantronmode=1;
785: }
1.161 albertel 786:
1.159 albertel 787: if ($target ne 'analyze') {
1.415 raeburn 788: my $type = &Apache::lonnet::EXT('resource.0.type');
789: $Apache::lonhomework::type=$type;
1.284 albertel 790: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 791: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 792: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 793: }
1.332 albertel 794: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 795: }
1.164 albertel 796: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 797: my $uri=$env{'request.uri'};
1.159 albertel 798: if ($uri=~/\.(\w+)$/) {
799: $Apache::lonhomework::type=$1;
800: &Apache::lonxml::debug("Using type of $1");
801: } else {
802: $Apache::lonhomework::type='problem';
803: &Apache::lonxml::debug("Using default type, problem, :$uri:");
804: }
1.87 albertel 805: }
1.301 albertel 806: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 807:
1.363 albertel 808: &initialize_storage();
1.389 albertel 809: if ($target ne 'analyze'
810: && $env{'request.state'} eq 'construct') {
811: &set_problem_state('0');
812: }
813:
1.366 albertel 814: if ($target eq 'web') {
815: &Apache::lonxml::debug(" grading history ");
816: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
817: }
1.363 albertel 818:
1.159 albertel 819: #added vars to the scripting enviroment
1.213 albertel 820: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 821: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 822: &Apache::run::run($expression,$safeeval);
1.159 albertel 823: my $status;
824: my $accessmsg;
825:
1.343 albertel 826: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 827: my ($result,$form_tag_start);
1.354 albertel 828: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
829: || $target eq 'edit') {
1.350 albertel 830: ($result,$form_tag_start) =
831: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
832: $name);
833: }
834:
1.284 albertel 835: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 836:
837: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
838: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
839: $target eq 'tex') {
840: #handle exam checkout
841: if ($Apache::lonhomework::type eq 'exam') {
842: my $token=
843: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 844: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 845: $token=&Apache::lonxml::maketoken();
846: $Apache::lonhomework::history{"resource.0.outtoken"}=
847: $token;
848: }
1.343 albertel 849: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 850: }
1.284 albertel 851: if ($env{'form.markaccess'}) {
1.414 albertel 852: my @interval=&Apache::lonnet::EXT("resource.0.interval");
853: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 854: }
1.159 albertel 855: #handle rand seed in construction space
856: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 857: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 858: if ($env{'request.state'} ne "construct" &&
859: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 860: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
861: $rndseed.'" />'.
862: '<input type="submit" name="resetdata"
1.334 albertel 863: value="'.&mt('New Problem Variation').'" />';
864: if (exists($env{'form.username'})) {
865: $form_tag_start.=
1.164 albertel 866: '<input type="hidden" name="username"
1.284 albertel 867: value="'.$env{'form.username'}.'" />';
1.334 albertel 868: }
1.333 albertel 869: if ($env{'request.role.adv'}) {
1.267 albertel 870: $form_tag_start.=
1.300 albertel 871: ' <label><input type="checkbox" name="showallfoils" ';
1.284 albertel 872: if (defined($env{'form.showallfoils'})) {
1.267 albertel 873: $form_tag_start.='checked="on"';
874: }
1.300 albertel 875: $form_tag_start.= ' />'.&mt(' Show All Foils').
876: '</label>';
1.267 albertel 877: }
1.417 www 878: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 879: $form_tag_start.=&practice_problem_header();
1.417 www 880: }
1.267 albertel 881: $form_tag_start.='<hr />';
1.162 albertel 882: }
1.324 albertel 883:
884: ($status,$accessmsg,my $slot_name,my $slot) =
885: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 886: push (@Apache::inputtags::status,$status);
1.324 albertel 887:
1.159 albertel 888: my $expression='$external::datestatus="'.$status.'";';
889: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
890: &Apache::run::run($expression,$safeeval);
891: &Apache::lonxml::debug("Got $status");
1.324 albertel 892:
1.159 albertel 893: if (( $status eq 'CLOSED' ) ||
894: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 895: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 896: ( $status eq 'BANNED') ||
1.216 albertel 897: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 898: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 899: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 900: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
901: $style);
1.159 albertel 902: if ( $target eq "web" ) {
1.343 albertel 903: my $msg;
1.159 albertel 904: if ($status eq 'UNAVAILABLE') {
1.245 albertel 905: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.253 albertel 906: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 907: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 908: }
1.216 albertel 909: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 910: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 911: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 912: $msg.=&checkout_msg();
1.252 albertel 913: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 914: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 915: } elsif ($status eq 'NOT_IN_A_SLOT') {
916: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work.");
1.159 albertel 917: }
918: $result.=$msg.'<br />';
919: } elsif ($target eq 'tex') {
1.332 albertel 920: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
921: : '\begin{minipage}{\textwidth}';
922: $result.='\begin{document}\noindent \vskip 1 mm '.
923: $startminipage.'\vskip 0 mm';
1.159 albertel 924: if ($status eq 'UNAVAILABLE') {
1.211 albertel 925: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 926: } else {
1.211 albertel 927: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 928: }
929: }
1.324 albertel 930: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 931: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
932: $style);
1.324 albertel 933: if ($target eq 'web') {
1.375 albertel 934: $result .=
935: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 936: } elsif ($target eq 'grade') {
937: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
938: 'problem');
939: }
1.159 albertel 940: } elsif ($target eq 'web') {
1.360 albertel 941: if ($status eq 'CAN_ANSWER'
942: && $slot_name ne ''
943: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
944: # unproctored slot access, self checkin
945: &Apache::bridgetask::check_in('problem',undef,undef,
946: $slot_name);
947: }
1.368 albertel 948: $result.="\n $form_tag_start \t".
1.227 albertel 949: '<input type="hidden" name="submitted" value="yes" />';
950: # create a page header and exit
1.284 albertel 951: if ($env{'request.state'} eq "construct") {
952: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 953: if ($Apache::lonhomework::type eq 'practice') {
954: $result.= '<input type="submit" name="resetdata" '.
955: 'value="'.&mt('New Problem Variation').'" />'.
956: &practice_problem_header().'<hr />';
957: }
1.227 albertel 958: }
959: # if we are viewing someone else preserve that info
1.284 albertel 960: if (defined $env{'form.grade_symb'}) {
1.227 albertel 961: foreach my $field ('symb','courseid','domain','username') {
962: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 963: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 964: }
965: }
966: } elsif ($target eq 'tex') {
1.319 foxr 967: $result .= 'INSERTTEXFRONTMATTERHERE';
968:
1.99 sakharuk 969: }
1.159 albertel 970: } elsif ($target eq 'edit') {
1.343 albertel 971: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 972: $Apache::lonxml::warnings_error_header=
973: &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 974: my $temp=&Apache::edit::insertlist($target,$token);
975: $result.=$temp;
976: } elsif ($target eq 'modified') {
977: $result=$token->[4];
978: } else {
979: # page_start returned a starting result, delete it if we don't need it
980: $result = '';
1.99 sakharuk 981: }
1.159 albertel 982: return $result;
1.9 albertel 983: }
984:
985: sub end_problem {
1.159 albertel 986: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 987: my $result;
1.310 foxr 988:
1.321 albertel 989: if (!$Apache::lonxml::metamode) {
990: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 991: $Apache::lonxml::post_evaluate=0;
1.321 albertel 992: }
1.319 foxr 993:
994: if ($target eq 'tex') {
1.321 albertel 995: # Figure out the front matter and replace the
996: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
997: # this in end_problem because whether or not we display due
998: # dates depends on whether due dates have already been
999: # displayed in the problem parts.
1000:
1.319 foxr 1001: my $frontmatter = '';
1002: my $startminipage = '';
1003: if (not $env{'form.problem_split'}=~/yes/) {
1004: $startminipage = '\begin{minipage}{\textwidth}';
1005: }
1006: my $id = $Apache::inputtags::part;
1007: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1008: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1009: my @packages = split /,/,$packages;
1010: my $allow_print_points = 0;
1011: foreach my $partial_key (@packages) {
1012: if ($partial_key=~m/^part_0$/) {
1013: $allow_print_points=1;
1014: }
1015: }
1016: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1017: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1018: if (lc($env{'course.'.$env{'request.course.id'}.
1019: '.disableexampointprint'}) eq 'yes') {
1020: $allow_print_points=0;
1021: }
1022: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1023: 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 ';
1024: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1025: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1026:
1027: # Figure out what the due date is and if we need to print
1028: # it in the problem header. We have been logging the
1029: # last due date written to file.
1030:
1031: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1032: my $duedate = POSIX::strftime("%c",localtime($duetime));
1033: my $temp_file;
1034: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1035:
1036: # Figure out what the last printed due date is or set it
1037: # to the epoch if no duedates have been printed.
1038:
1039: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1040: if (-e $filename) {
1041: $temp_file = Apache::File->new($filename);
1042: my @due_file = <$temp_file>;
1043: $due_file_content = $due_file[$#due_file];
1044: chomp $due_file_content;
1045: }
1046:
1047: # We display the due date iff it is not the same as the last
1048: # duedate in problem header ($due_file_content), and
1049: # none of our parts displayed a duedate.
1050: #
1051: my $parts_with_displayduedate;
1052: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1053: $parts_with_displayduedate =
1054: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1055: } else {
1056: $parts_with_displayduedate = 0;
1057: }
1058: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1059: $temp_file = Apache::File->new('>'.$filename);
1060: print $temp_file "$duetime\n";
1061: if (not $env{'request.symb'} =~ m/\.page_/) {
1062: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1063: $frontmatter .= $begin_doc.
1064: '\textit{Due date: '.$duedate.'} '.$toc_line;
1065: } else {
1066: $frontmatter.= $begin_doc.$toc_line;
1067: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1068: }
1069: } else {
1.381 albertel 1070: $frontmatter .= '\vskip 1mm\textit{Due date: '.$duedate.'} \\\\\\\\'.$startminipage;
1.319 foxr 1071: }
1072: } else {
1073: if (not $env{'request.symb'} =~ m/\.page_/) {
1074: $frontmatter .= $begin_doc.$toc_line;
1075: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1076: } else {
1.381 albertel 1077: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1078: }
1079: }
1080: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1081: }
1082:
1.159 albertel 1083: my $status=$Apache::inputtags::status['-1'];
1084: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1085: $target eq 'tex') {
1.249 albertel 1086: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1087: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1088: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1089: &Apache::inputtags::grade;
1.324 albertel 1090: } elsif ($status eq 'NEEDS_CHECKIN') {
1091: # no need to grade, and don't want to hide data
1.249 albertel 1092: } else {
1093: # move any submission data to .hidden
1094: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1095: }
1.159 albertel 1096: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1097: $Apache::inputtags::part eq '0' &&
1.252 albertel 1098: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1099: # if part is zero, no <part>s existed, so we need show the current
1100: # grading status
1101: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1102: $result.= $gradestatus;
1103: }
1104: if (
1.284 albertel 1105: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1106: ($target eq 'answer') || ($target eq 'tex')
1107: ) {
1.227 albertel 1108: if ($target ne 'tex' &&
1.284 albertel 1109: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1110: $result.="</form>";
1.348 albertel 1111: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1112: }
1113: if ($target eq 'web') {
1.346 albertel 1114: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1115: } elsif ($target eq 'tex') {
1.178 sakharuk 1116: my $endminipage = '';
1.284 albertel 1117: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1118: $endminipage = '\end{minipage}';
1119: }
1.284 albertel 1120: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1121: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1122: } else {
1.262 sakharuk 1123: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1124: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1125: $result .= $endminipage.'\end{document} ';
1126: } else {
1.382 albertel 1127: $result .= $endminipage;
1.262 sakharuk 1128: }
1.159 albertel 1129: }
1130: }
1131: }
1132: if ($target eq 'grade') {
1133: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1134: &finalize_storage();
1135: }
1.284 albertel 1136: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1137: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1138: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1139: # normally we get it from above, but in CSTR
1.172 albertel 1140: # we always show answer mode too.
1.159 albertel 1141: }
1142: } elsif ($target eq 'meta') {
1143: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1144: @Apache::inputtags::response=();
1.159 albertel 1145: $result=&Apache::response::mandatory_part_meta;
1146: }
1.215 albertel 1147: $result.=&Apache::response::meta_part_order();
1.258 albertel 1148: $result.=&Apache::response::meta_response_order();
1.159 albertel 1149: } elsif ($target eq 'edit') {
1150: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1151: $result .= &problem_edit_footer();
1.320 albertel 1152: } elsif ($target eq 'modified') {
1153: $result .= $token->[2];
1.159 albertel 1154: }
1.155 albertel 1155:
1.284 albertel 1156: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1157: &Apache::inputtags::check_for_duplicate_ids();
1158: }
1.204 albertel 1159:
1160: &reset_problem_globals('problem');
1.159 albertel 1161:
1162: return $result;
1.48 albertel 1163: }
1164:
1.108 albertel 1165:
1.48 albertel 1166: sub start_library {
1.159 albertel 1167: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1168: my ($result,$form_tag_start);
1.371 albertel 1169: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1170: &init_problem_globals('library');
1171: $Apache::lonhomework::type='problem';
1172: }
1.159 albertel 1173: if ($target eq 'edit') {
1.343 albertel 1174: ($result,$form_tag_start)=
1175: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1176: 'Edit');
1177: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1178: my $temp=&Apache::edit::insertlist($target,$token);
1179: $result.=$temp;
1180: } elsif ($target eq 'modified') {
1181: $result=$token->[4];
1.340 albertel 1182: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1183: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1184: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1185: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1186: ($result,$form_tag_start)=
1187: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1188: $name);
1.159 albertel 1189: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1190: $result.=" \n $form_tag_start".
1.159 albertel 1191: '<input type="hidden" name="submitted" value="yes" />';
1192: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1193: if ($Apache::lonhomework::type eq 'practice') {
1194: $result.= '<input type="submit" name="resetdata" '.
1195: 'value="'.&mt('New Problem Variation').'" />'.
1196: &practice_problem_header().'<hr />';
1197: }
1.159 albertel 1198: }
1199: return $result;
1.48 albertel 1200: }
1201:
1202: sub end_library {
1.159 albertel 1203: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1204: my $result='';
1205: if ($target eq 'edit') {
1206: $result=&problem_edit_footer();
1.371 albertel 1207: } elsif ($target eq 'web'
1208: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1209: && $env{'request.state'} eq "construct") {
1.349 albertel 1210: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1211: }
1.371 albertel 1212: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1213: &reset_problem_globals('library');
1214: }
1.159 albertel 1215: return $result;
1.197 www 1216: }
1217:
1218: sub start_definetag {
1.326 albertel 1219: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1220:
1221: my $result;
1222:
1223: my $name = $token->[2]->{'name'};
1.326 albertel 1224: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1225: if ($target eq 'web') {
1226: if ($name=~/^\//) {
1227: $result=
1228: '<br /><table class="LC_sty_end"><tr><th>'.
1229: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1230: } else {
1231: $result=
1232: '<br /><table class="LC_sty_begin"><tr><th>'.
1233: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1234: }
1235: $skip = &HTML::Entities::encode($skip, '<>&"');
1236: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1237: }
1238: return $result;
1239: }
1240:
1241: sub end_definetag {
1242: return '';
1.1 albertel 1243: }
1244:
1245: sub start_block {
1.201 albertel 1246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1247:
1248: my $result;
1.1 albertel 1249:
1.339 albertel 1250: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1251: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1252: my $code = $token->[2]->{'condition'};
1.385 albertel 1253: if (defined($code) && $code ne '') {
1.137 albertel 1254: if (!$Apache::lonxml::default_homework_loaded) {
1255: &Apache::lonxml::default_homework_load($safeeval);
1256: }
1.131 albertel 1257: $result = &Apache::run::run($code,$safeeval);
1258: &Apache::lonxml::debug("block :$code: returned :$result:");
1259: } else {
1260: $result='1';
1261: }
1262: if ( ! $result ) {
1.201 albertel 1263: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1264: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1265: }
1266: $result='';
1267: } elsif ($target eq 'edit') {
1268: $result .=&Apache::edit::tag_start($target,$token);
1269: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1270: $token,40);
1271: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1272: } elsif ($target eq 'modified') {
1273: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1274: $safeeval,'condition');
1275: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1276: }
1.131 albertel 1277: return $result;
1.1 albertel 1278: }
1279:
1280: sub end_block {
1.167 www 1281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1282: my $result;
1283: if ($target eq "edit") {
1284: $result.= &Apache::edit::tag_end($target,$token,'');
1285: }
1286: return $result;
1287: }
1288:
1289: sub start_languageblock {
1.201 albertel 1290: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1291:
1292: my $result;
1293:
1.339 albertel 1294: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1295: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1296: my $include = $token->[2]->{'include'};
1297: my $exclude = $token->[2]->{'exclude'};
1.398 www 1298: my @preferred_languages=&Apache::loncommon::preferred_languages();
1.394 www 1299: # This should not even happen, since we should at least have the server language
1.398 www 1300: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1301: # Now loop over all languages in order of preference
1302: foreach my $preferred_language (@preferred_languages) {
1.394 www 1303: # If the languageblock has no arguments, show the contents
1.399 www 1304: $result=1;
1305: my $found=0;
1.394 www 1306: # Do we have an include argument?
1.398 www 1307: if ($include) {
1.394 www 1308: # If include is specified, by default, don't render the block
1.399 www 1309: $result=0;
1.398 www 1310: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1311: # ... but if my preferred language is included, render it
1.398 www 1312: if ($included_language eq $preferred_language) {
1.399 www 1313: $result=1;
1314: $found=1;
1.398 www 1315: }
1316: }
1317: }
1.394 www 1318: # Do we have an exclude argument?
1.398 www 1319: if ($exclude) {
1.399 www 1320: $result=1;
1.398 www 1321: foreach my $excluded_language (split(/\,/,$exclude)) {
1322: if ($excluded_language eq $preferred_language) {
1.399 www 1323: $result=0;
1324: $found=1;
1.398 www 1325: }
1326: }
1327: }
1.399 www 1328: if ($found) { last; }
1.398 www 1329: }
1.201 albertel 1330: if ( ! $result ) {
1331: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1332: $style);
1333: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1334: }
1335: $result='';
1.167 www 1336: } elsif ($target eq 'edit') {
1337: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1338: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1339: $token,40);
1.211 albertel 1340: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1341: $token,40);
1342: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1343: } elsif ($target eq 'modified') {
1344: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1345: $safeeval,'include',
1346: 'exclude');
1.167 www 1347: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1348: }
1349: return $result;
1350: }
1351:
1352: sub end_languageblock {
1.170 www 1353: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1354: my $result;
1.201 albertel 1355: if ($target eq "edit") {
1.170 www 1356: $result.= &Apache::edit::tag_end($target,$token,'');
1357: }
1358: return $result;
1359: }
1360:
1.397 albertel 1361: {
1362: my %available_texts;
1363: sub start_translated {
1364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1365: &Apache::lonxml::register('Apache::structuretags',('lang'));
1366: undef(%available_texts);
1367: }
1368:
1369: sub end_translated {
1370: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1371: my $result;
1372: #show the translation on viewable targets
1373: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1374: # or non-viewable targets, if it's embedded in something that
1375: # wants the output
1376: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1377: && &Apache::lonxml::in_redirection() ) ) {
1378: my @possibilities = keys(%available_texts);
1379: my $which =
1380: &Apache::loncommon::languages(\@possibilities) || 'default';
1381: $result = $available_texts{$which};
1382: }
1383: undef(%available_texts);
1384: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1385: return $result;
1386: }
1387:
1388:
1389: sub start_lang {
1390: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1391: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1392: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1393: &Apache::lonxml::startredirection();
1394: }
1395: return '';
1396: }
1397:
1398: sub end_lang {
1399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1400: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1401: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1402: my $result = &Apache::lonxml::endredirection();
1403: my $which = &Apache::lonxml::get_param('which',$parstack,
1404: $safeeval);
1.431 raeburn 1405: if ($which=~/\w/) {
1406: $available_texts{$which} = $result;
1407: }
1408: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1409: $safeeval);
1410: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1411: if ($language=~/\w/) {
1412: $available_texts{$language} = $result;
1413: }
1.427 bisitz 1414: }
1415:
1.397 albertel 1416: }
1417: return '';
1418: }
1419: }
1420:
1.170 www 1421: sub start_instructorcomment {
1.201 albertel 1422: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1423:
1424: my $result;
1425:
1.339 albertel 1426: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1427: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1428: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1429: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1430: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1431: $parser,$style);
1.170 www 1432: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1433: }
1434: $result='';
1435: } elsif ($target eq 'edit') {
1436: $result .=&Apache::edit::tag_start($target,$token);
1437: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1438: }
1439: return $result;
1440: }
1441:
1442: sub end_instructorcomment {
1.159 albertel 1443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1444: my $result;
1445: if ($target eq "edit") {
1446: $result.= &Apache::edit::tag_end($target,$token,'');
1447: }
1448: return $result;
1.4 tsai 1449: }
1450:
1451: sub start_while {
1.326 albertel 1452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1453:
1.160 albertel 1454: my $result;
1.339 albertel 1455: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1456: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1457: my $code = $token->[2]->{'condition'};
1.4 tsai 1458:
1.160 albertel 1459: push( @Apache::structuretags::whileconds, $code);
1460: if (!$Apache::lonxml::default_homework_loaded) {
1461: &Apache::lonxml::default_homework_load($safeeval);
1462: }
1463: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1464: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1465: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1466: push( @Apache::structuretags::whileline, $token->[5]);
1467: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1468: if ( $result ) {
1469: &Apache::lonxml::newparser($parser,\$bodytext);
1470: }
1471: } elsif ($target eq 'edit') {
1472: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1473: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1474: $token,40);
1475: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1476: } elsif ($target eq 'modified') {
1477: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1478: $safeeval,'condition');
1479: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1480: }
1.160 albertel 1481: return $result;
1.4 tsai 1482: }
1483:
1484: sub end_while {
1.159 albertel 1485: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1486: my $result;
1487:
1.339 albertel 1488: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1489: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1490: my $code = pop(@Apache::structuretags::whileconds);
1491: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1492: my $line = pop(@Apache::structuretags::whileline);
1493: my $return = &Apache::run::run($code,$safeeval);
1494: my $starttime=time;
1495: my $error=0;
1496: while ($return) {
1497: if (time-$starttime >
1498: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1499: $return = 0; $error=1; next;
1.161 albertel 1500: }
1501: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1502: if ($target eq 'grade' || $target eq 'answer' ||
1503: $target eq 'analyze') {
1504: # grade/answer/analyze should produce no output but if we
1505: # are redirecting, the redirecter should know what to do
1506: # with the output
1507: if (!$Apache::lonxml::redirection) { undef($result); }
1508: }
1.161 albertel 1509: $return = &Apache::run::run($code,$safeeval);
1510: }
1511: if ($error) {
1.430 bisitz 1512: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1513: }
1514: } elsif ($target eq "edit") {
1515: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1516: }
1.160 albertel 1517: return $result;
1.1 albertel 1518: }
1.6 tsai 1519:
1.160 albertel 1520: # <randomlist show="1">
1.6 tsai 1521: # <tag1>..</tag1>
1522: # <tag2>..</tag2>
1523: # <tag3>..</tag3>
1.160 albertel 1524: # ...
1.6 tsai 1525: # </randomlist>
1526: sub start_randomlist {
1.326 albertel 1527: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1528: my $result;
1.339 albertel 1529: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1530: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1531: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1532: my $b_parser= HTML::LCParser->new(\$body);
1533: $b_parser->xml_mode(1);
1534: $b_parser->marked_sections(1);
1.159 albertel 1535: my $b_tok;
1536: my @randomlist;
1537: my $list_item;
1538: while($b_tok = $b_parser->get_token() ) {
1539: if($b_tok->[0] eq 'S') { # start tag
1540: # get content of the tag until matching end tag
1541: # get all text upto the matching tag
1542: # and push the content into @randomlist
1543: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1544: $b_parser);
1545: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1546: push(@randomlist,$list_item);
1547: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1548: # $list_item</b>";
1549: }
1550: if($b_tok->[0] eq 'T') { # text
1551: # what to do with text in between tags?
1552: # print "<b>TEXT $b_tok->[1]</b><br />";
1553: }
1554: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1555: # print "<b>END-TAG $b_tok->[1]</b><br />";
1556: # }
1557: }
1.303 albertel 1558: if (@randomlist) {
1559: my @idx_arr = (0 .. $#randomlist);
1560: &Apache::structuretags::shuffle(\@idx_arr);
1561: my $bodytext = '';
1562: my $show=$#randomlist;
1563: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1564: $showarg--;
1565: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1566: for(0 .. $show) {
1567: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1568: }
1569: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1570: }
1571: } elsif ($target eq 'edit' ) {
1572: $result .=&Apache::edit::tag_start($target,$token);
1573: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1574: $token,5);
1575: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1576: } elsif ($target eq 'modified' ) {
1577: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1578: $safeeval,'show');
1579: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1580: }
1581: return $result;
1.7 tsai 1582: }
1583:
1584: sub shuffle {
1585: my $a=shift;
1586: my $i;
1.303 albertel 1587: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1588: &Apache::response::pushrandomnumber();
1.159 albertel 1589: for($i=@$a;--$i;) {
1590: my $j=int(&Math::Random::random_uniform() * ($i+1));
1591: next if $i == $j;
1592: @$a[$i,$j] = @$a[$j,$i];
1593: }
1.251 albertel 1594: &Apache::response::poprandomnumber();
1.7 tsai 1595: }
1.6 tsai 1596: }
1597:
1598: sub end_randomlist {
1.159 albertel 1599: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1600: my $result;
1601: if ($target eq 'edit' ) {
1602: $result=&Apache::edit::tag_end($target,$token,
1603: 'End Randomly Parsed Block');
1604: }
1605: return $result;
1.6 tsai 1606: }
1607:
1.283 albertel 1608: sub ordered_show_check {
1609: my $last_part=$Apache::inputtags::partlist[-2];
1610: my $in_order=
1611: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1612: my $in_order_show=1;
1613: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1614: $in_order_show=&Apache::response::check_status($last_part);
1615: }
1616: return $in_order_show;
1617: }
1618:
1.11 albertel 1619: sub start_part {
1.326 albertel 1620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1621: if (!$Apache::lonxml::metamode) {
1622: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1623: # duedates.
1624: }
1.159 albertel 1625: my $result='';
1.386 albertel 1626: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1627: $Apache::inputtags::part=$id;
1.177 albertel 1628: push(@Apache::inputtags::partlist,$id);
1629: @Apache::inputtags::response=();
1.159 albertel 1630: @Apache::inputtags::previous=();
1631: @Apache::inputtags::previous_version=();
1.405 albertel 1632: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1633: &Apache::response::reset_params();
1634:
1.159 albertel 1635: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1636: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1637: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1638: my $in_order_show=&ordered_show_check();
1.214 albertel 1639: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1640: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1641: &Apache::run::run($expression,$safeeval);
1.159 albertel 1642:
1643: if ($target eq 'meta') {
1.224 www 1644: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1645: return &Apache::response::mandatory_part_meta.
1646: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1647: } elsif ($target eq 'web' || $target eq 'grade' ||
1648: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1649: if ($hidden || !$in_order_show) {
1.326 albertel 1650: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1651: } else {
1652: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1653: push (@Apache::inputtags::status,$status);
1654: my $expression='$external::datestatus="'.$status.'";';
1655: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1656: &Apache::run::run($expression,$safeeval);
1.284 albertel 1657: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1658: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1659: }
1.216 albertel 1660: if (( $status eq 'CLOSED' ) ||
1661: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1662: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1663: ( $status eq 'BANNED') ||
1664: ( $status eq 'UNAVAILABLE') ||
1665: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1666: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1667: $style);
1.159 albertel 1668: if ( $target eq "web" ) {
1.211 albertel 1669: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1670: } elsif ( $target eq 'tex' ) {
1.284 albertel 1671: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1672: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1673: } else {
1.211 albertel 1674: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1675: }
1.159 albertel 1676: }
1677: } else {
1678: if ($target eq 'tex') {
1.284 albertel 1679: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1680: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1681: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1682: } else {
1683: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1684: }
1.195 sakharuk 1685: }
1.159 albertel 1686: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1687: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1688: my @allkeys = split /,/,$allkeys;
1689: my $allow_print_points = 0;
1690: foreach my $partial_key (@allkeys) {
1.230 albertel 1691: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1692: if ($1 ne '0') {$allow_print_points=1;}
1693: }
1694: }
1.275 albertel 1695: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1696: if (defined($maxtries) && $maxtries < 0) {
1697: $allow_print_points=0;
1698: }
1.302 albertel 1699: if (lc($env{'course.'.$env{'request.course.id'}.
1700: '.disableexampointprint'}) eq 'yes') {
1701: $allow_print_points=0;
1702: }
1.222 sakharuk 1703: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1704: } elsif ($target eq 'web') {
1.356 www 1705: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1706: }
1707: }
1708: }
1709: } elsif ($target eq 'edit') {
1710: $result.=&Apache::edit::tag_start($target,$token);
1711: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1712: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1713: ' '.
1714: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1715: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1716: } elsif ($target eq 'modified') {
1717: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1718: $safeeval,'id','display');
1.159 albertel 1719: if ($constructtag) {
1.225 albertel 1720: #limiting ids to only letters numbers, and space
1.224 www 1721: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1722: $result = &Apache::edit::rebuild_tag($token);
1723: }
1724: }
1725: return $result;
1.11 albertel 1726: }
1727:
1728: sub end_part {
1.159 albertel 1729: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1730: &Apache::lonxml::debug("in end_part $target ");
1731: my $status=$Apache::inputtags::status['-1'];
1732: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1733: my $in_order_show=&ordered_show_check();
1.321 albertel 1734: my $result;
1735: if (!$Apache::lonxml::metamode) {
1736: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1737: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1738: }
1.312 albertel 1739: if ($target eq 'grade') {
1.249 albertel 1740: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1741: !$hidden && $in_order_show) {
1.311 foxr 1742: $result.=&Apache::inputtags::grade;
1.249 albertel 1743: } else {
1744: # move any submission data to .hidden
1745: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1746: }
1.283 albertel 1747: } elsif (($target eq 'web' || $target eq 'tex') &&
1748: !$hidden && $in_order_show) {
1.159 albertel 1749: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1750: $target);
1.212 albertel 1751: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1752: $gradestatus='';
1753: }
1.311 foxr 1754: $result.=$gradestatus;
1.265 sakharuk 1755: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1756: } elsif ($target eq 'edit') {
1.311 foxr 1757: $result.=&Apache::edit::end_table();
1.322 albertel 1758: } elsif ($target eq 'modified') {
1759: $result .= $token->[2];
1.159 albertel 1760: }
1761: pop @Apache::inputtags::status;
1762: $Apache::inputtags::part='';
1.295 albertel 1763: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1764: return $result;
1.11 albertel 1765: }
1.1 albertel 1766:
1.25 albertel 1767: sub start_preduedate {
1.326 albertel 1768: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1769: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1770: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1771: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1772: if (!$Apache::lonhomework::scantronmode &&
1773: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1774: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1775: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1776: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1777: }
1.24 albertel 1778: }
1.159 albertel 1779: return '';
1.24 albertel 1780: }
1781:
1.25 albertel 1782: sub end_preduedate {
1.159 albertel 1783: return '';
1.24 albertel 1784: }
1785:
1.369 foxr 1786: # In all the modes where <postanswerdate> text is
1787: # displayable, all we do is eat up the text between the start/stop
1788: # tags if the conditions are not right to display it.
1.25 albertel 1789: sub start_postanswerdate {
1.326 albertel 1790: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1791: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1792: &Apache::lonnet::allowed('pav',
1793: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1794: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1795: $target eq 'tex' ) {
1.300 albertel 1796: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1797: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1798: (($target eq 'tex') && !$pav)) {
1.326 albertel 1799: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1800: }
1801: }
1802: return '';
1.24 albertel 1803: }
1804:
1.25 albertel 1805: sub end_postanswerdate {
1.159 albertel 1806: return '';
1.24 albertel 1807: }
1808:
1.25 albertel 1809: sub start_notsolved {
1.326 albertel 1810: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1811: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1812: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1813: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1814: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1815: if ($gradestatus =~ /^correct/ &&
1816: &Apache::response::show_answer()) {
1.159 albertel 1817: &Apache::lonxml::debug("skipping");
1.326 albertel 1818: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1819: }
1.24 albertel 1820: }
1.159 albertel 1821: return '';
1.24 albertel 1822: }
1823:
1.25 albertel 1824: sub end_notsolved {
1.159 albertel 1825: return '';
1.24 albertel 1826: }
1827:
1828: sub start_solved {
1.326 albertel 1829: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1830: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1831: $target eq 'tex') {
1832: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1833: if ($gradestatus !~ /^correct/ ||
1834: !&Apache::response::show_answer()) {
1.326 albertel 1835: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1836: }
1.24 albertel 1837: }
1.159 albertel 1838: return '';
1.24 albertel 1839: }
1840:
1841: sub end_solved {
1.248 albertel 1842: return '';
1843: }
1844:
1845: sub start_problemtype {
1.326 albertel 1846: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1847: my $result;
1.339 albertel 1848: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1849: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1850: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1851: if (!defined($mode)) { $mode='show'; }
1852: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1853: my $found=0;
1854: foreach my $type (split(',',$for)) {
1855: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1856: }
1857: if ($mode eq 'show' && !$found) {
1.326 albertel 1858: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1859: }
1860: if ($mode eq 'hide' && $found) {
1.326 albertel 1861: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1862: }
1863: } elsif ($target eq 'edit') {
1864: $result .=&Apache::edit::tag_start($target,$token);
1865: $result.=&Apache::edit::select_arg('Mode:','mode',
1866: [['show','Show'],
1867: ['hide','Hide']]
1868: ,$token);
1869: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1870: [ ['exam','Exam/Quiz Problem'],
1871: ['survey','Survey'],
1.428 raeburn 1872: ['problem','Homework Problem'],
1873: ['practice','Practice Problem'] ]
1.248 albertel 1874: ,$token);
1875: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1876: } elsif ($target eq 'modified') {
1877: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1878: $safeeval,'mode','for');
1879: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1880: }
1881: return $result;
1882: }
1883:
1884: sub end_problemtype {
1.159 albertel 1885: return '';
1.24 albertel 1886: }
1.34 albertel 1887:
1888: sub start_startouttext {
1.159 albertel 1889: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1890: my @result=(''.'');
1891: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1892:
1893: my $nesting =
1894: &Apache::lonxml::set_state('outtext',
1895: &Apache::lonxml::get_state('outtext')+1);
1896: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1897: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1898: }
1.159 albertel 1899: return (@result);
1.34 albertel 1900: }
1.159 albertel 1901:
1.34 albertel 1902: sub end_startouttext {
1.326 albertel 1903: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1904: my $result='';
1905: my $text='';
1906: if ($target eq 'edit') {
1.424 foxr 1907: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1908: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.434 ! foxr 1909:
! 1910: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>
! 1911: <td>".&mt('Delete:').
! 1912: &Apache::edit::deletelist($target,$token)
! 1913: ."</td>";
1.425 raeburn 1914: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 ! foxr 1915: $result .= '<td align="left">'
! 1916: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
! 1917: .'</td>'
! 1918: .'<td>'
! 1919: .&Apache::edit::insertlist($target,$token)
! 1920: .'</td>';
! 1921: }
1.425 raeburn 1922: $result.='<td align="right" valign="top">' .
1.434 ! foxr 1923: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1924: &Apache::edit::end_row().
1.362 albertel 1925: &Apache::edit::start_spanning_row()."\n".
1.255 www 1926: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1927: }
1928: if ($target eq 'modified') {
1.219 albertel 1929: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 1930: }
1931: if ($target eq 'tex') {
1932: $result .= '\noindent ';
1933: }
1934: return $result;
1.34 albertel 1935: }
1.159 albertel 1936:
1.34 albertel 1937: sub start_endouttext {
1.159 albertel 1938: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1939: my $result='';
1940: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1941: if ($target eq "modified") {
1942: $result='<endouttext />'.
1.377 albertel 1943: &Apache::edit::handle_insertafter('startouttext');
1944: }
1.404 albertel 1945:
1946: my $nesting =
1947: &Apache::lonxml::set_state('outtext',
1948: &Apache::lonxml::get_state('outtext')-1);
1949: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
1950: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
1951: &Apache::lonxml::set_state('outtext', 0);
1952: }
1.159 albertel 1953: return $result;
1.34 albertel 1954: }
1.159 albertel 1955:
1.34 albertel 1956: sub end_endouttext {
1.159 albertel 1957: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1958: my @result=('','');
1959: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
1960: return (@result);
1.34 albertel 1961: }
1.159 albertel 1962:
1.45 albertel 1963: sub delete_startouttext {
1.326 albertel 1964: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1965: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 1966: my $text=$$parser['-1']->get_text("/endouttext");
1967: my $ntoken=$$parser['-1']->get_token();
1968: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
1969: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
1970: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
1971: # they did the last time round
1972: &Apache::lonxml::increasedepth($ntoken);
1973: &Apache::lonxml::decreasedepth($ntoken);
1974: return 1;
1.193 www 1975: }
1976:
1977: sub start_simpleeditbutton {
1978: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1979: my $result='';
1.284 albertel 1980: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 1981: ($target eq 'web') &&
1.330 albertel 1982: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 1983: my $url=$env{'request.noversionuri'};
1.193 www 1984: $url=~s/\?.*$//;
1.367 albertel 1985: my ($symb) = &Apache::lonnet::whichuser();
1.194 www 1986: $result='<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>'.
1.356 www 1987: '<a href="'.$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 1988: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table><br />';
1.193 www 1989: }
1990: return $result;
1991: }
1992:
1993: sub end_simpleeditbutton {
1994: return '';
1.45 albertel 1995: }
1.34 albertel 1996:
1.428 raeburn 1997: sub practice_problem_header {
1998: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
1999: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2000: '</span>';
2001: }
2002:
1.1 albertel 2003: 1;
2004: __END__
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