Annotation of loncom/homework/structuretags.pm, revision 1.67
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.33 albertel 3: # 2/19 Guy
1.44 ng 4: # 6/26/2001 fixed extra web display at end of <web></web> tags
1.60 www 5: # 8/17,8/18,8/20 Gerd Kortemeyer
1.54 www 6:
1.1 albertel 7: package Apache::structuretags;
8:
9: use strict;
10: use Apache::lonnet;
11:
12: sub BEGIN {
1.48 albertel 13: &Apache::lonxml::register('Apache::structuretags',('block','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','startouttext','endouttext'));
1.37 albertel 14: # &Apache::lonxml::register_insert('problem','',('part','postanswerdate','preduedate'))
1.10 albertel 15: }
16:
17: sub start_web {
1.40 albertel 18: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.10 albertel 19: my $bodytext=&Apache::lonxml::get_all_text("/web",$$parser[$#$parser]);
1.19 albertel 20: if ($target eq 'web') {
21: return $bodytext;
22: }
23: return '';
1.10 albertel 24: }
25:
26: sub end_web {
1.44 ng 27: return '';
1.10 albertel 28: }
29:
30: sub start_tex {
1.40 albertel 31: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.10 albertel 32: my $bodytext=&Apache::lonxml::get_all_text("/tex",$$parser[$#$parser]);
1.19 albertel 33: if ($target eq 'tex') {
34: return $bodytext
35: }
1.10 albertel 36: return '';
37: }
38:
39: sub end_tex {
1.44 ng 40: return '';
1.9 albertel 41: }
42:
1.48 albertel 43: sub page_start {
44: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
45: my $result=&Apache::londefdef::start_html($target,$token,$tagstack,$parstack,$parser,$safeeval);
46: my $head_tag_start='<head>'.&Apache::lonxml::registerurl();
47: my $body_tag_start='<body onLoad="'.&Apache::lonxml::loadevents().'" '.
1.50 albertel 48: 'onUnload="'.&Apache::lonxml::unloadevents().'" ';
49: my $background=&Apache::lonxml::get_param('background',$parstack,$safeeval);
50: if ($background) {
51: $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
52: $background;
53: $body_tag_start.='background="'.$background.'" ';
54: } else {
55: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,$safeeval);
56: if ($bgcolor) {
57: $body_tag_start.='bgcolor="'.$bgcolor.'" ';
58: } else {
59: $body_tag_start.='bgcolor="#ffffff"';
60: }
61: }
62: $body_tag_start.='>';
1.48 albertel 63: return ($result,$head_tag_start,$body_tag_start);
64: }
65:
1.65 albertel 66: sub initialize_storage {
67: %Apache::lonhomework::results=();
1.66 albertel 68: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.67 ! albertel 69: if ($ENV{'request.state'} eq 'construct') {
! 70: %Apache::lonhomework::history=
! 71: &Apache::lonnet::restore($ENV{'request.uri'},'nohist_construct',$domain,$name);
! 72: my ($temp)=keys %Apache::lonhomework::history ;
! 73: &Apache::lonxml::debug("Return message of $temp");
! 74: } else {
! 75: %Apache::lonhomework::history=
! 76: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
! 77: }
1.65 albertel 78: #ignore error conditions
79: my ($temp)=keys %Apache::lonhomework::history ;
80: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
81: }
82:
83: # -------------------------------------------------------------finalize_storage
84: # Stores away the result has to a student's environment
85: # checks form.grade_ for specific values, other wises stores
86: # to the running users environment
87: sub finalize_storage {
88: my $result;
89: my ($temp) = keys %Apache::lonhomework::results;
90: if ( $temp ne '' ) {
1.66 albertel 91: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
1.67 ! albertel 92: if ($ENV{'request.state'} eq 'construct') {
! 93: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
! 94: $ENV{'request.uri'},'nohist_construct',
! 95: $domain,$name);
! 96: &Apache::lonxml::debug('Construct Store return message:'.$result);
! 97: } else {
! 98: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
! 99: $symb,$courseid,$domain,$name);
! 100: &Apache::lonxml::debug('Store return message:'.$result);
! 101: }
1.65 albertel 102: }
103: return $result;
104: }
105:
106: sub checkout_msg {
107: return (<<ENDCHECKOUT);
108: <h2>The resource needs to be checked out</h2>
109: As a resource gets checked out, a unique timestamped ID is given to it, and a
110: permanent record is left in the system.<p />
111: <font color=red>
112: Checking out resources is subject to course policies, and may exclude future
113: credit even if done erroneously.<p />
114: </font>
115: <form method=post>
116: <input type=button name="doescheckout"
117: value="Check out Exam for Viewing"
118: onClick="if (confirm('Check out Exam?')) { this.form.submit(); }" />
119: </form>
120: ENDCHECKOUT
121: }
122:
1.9 albertel 123: sub start_problem {
1.40 albertel 124: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19 albertel 125:
126: #intialize globals
127: $Apache::inputtags::part='0';
128: @Apache::inputtags::responselist = ();
1.51 albertel 129: @Apache::inputtags::previous=();
1.65 albertel 130: &initialize_storage();
1.42 albertel 131: $Apache::lonhomework::type=&Apache::lonnet::EXT('resource.0.type');
132: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
133: if ($Apache::lonhomework::type eq '') {
1.53 albertel 134: my $uri=$ENV{'request.uri'};
135: if ($uri=~/\.(\w+)$/) {
136: $Apache::lonhomework::type=$1;
137: &Apache::lonxml::debug("Using type of $1");
138: } else {
139: $Apache::lonhomework::type='problem';
140: &Apache::lonxml::debug("Using default type, problem, :$uri:");
141: }
1.42 albertel 142: }
1.58 www 143:
1.67 ! albertel 144: #added vars to the scripting enviroment
1.19 albertel 145: my $expression='$external::part='.$Apache::inputtags::part.';';
146: &Apache::run::run($expression,$safeeval);
1.22 albertel 147: my $status;
1.55 www 148: my $accessmsg;
1.36 albertel 149:
1.41 albertel 150: #should get back a <html> or the neccesary stuff to start XML/MathML
1.48 albertel 151: my ($result,$head_tag_start,$body_tag_start)=
152: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.36 albertel 153:
1.67 ! albertel 154:
! 155: if ($target eq 'web' || $target eq 'grade') {
! 156: #handle exam checkout
! 157: if ($Apache::lonhomework::type eq 'exam') {
! 158: my $token=$Apache::lonhomework::history{"resource.0.outtoken"};
! 159: if (($ENV{'form.doescheckout'}) && (!$token)) {
! 160: $token=&Apache::lonxml::maketoken();
! 161: $Apache::lonhomework::history{"resource.0.outtoken"}=$token;
! 162: }
! 163: $body_tag_start.=&Apache::lonxml::printtokenheader($target,$token);
! 164: }
! 165:
! 166: #handle rand seed in construction space
! 167: my $rndseed;
! 168: if ($ENV{'request.state'} eq "construct") {
! 169: $rndseed=$ENV{'form.rndseed'};
! 170: if (!$rndseed) {
! 171: $rndseed=time;
! 172: $ENV{'form.rndseed'}=$rndseed;
1.58 www 173: }
1.67 ! albertel 174: &Apache::run::run('$external::randomseed='.$rndseed.';',$safeeval);
! 175: }
1.55 www 176: ($status,$accessmsg) = &Apache::lonhomework::check_access('0');
1.22 albertel 177: push (@Apache::inputtags::status,$status);
1.24 albertel 178: my $expression='$external::datestatus="'.$status.'";';
179: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
180: &Apache::run::run($expression,$safeeval);
1.54 www 181: if (( $status eq 'CLOSED' ) ||
182: ( $status eq 'UNCHECKEDOUT') ||
183: ( $status eq 'BANNED')) {
1.21 albertel 184: my $bodytext=&Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
185: if ( $target eq "web" ) {
1.41 albertel 186: $result.= $head_tag_start.'</head>';
1.54 www 187: my $msg=$body_tag_start.
188: '<h1>Not open to be viewed</h1>';
189: if ($status eq 'CLOSED') {
1.55 www 190: $msg.='The problem '.$accessmsg;
1.54 www 191: } elsif ($status eq 'UNCHECKEDOUT') {
1.65 albertel 192: $msg.=&checkout_msg;
1.54 www 193: }
1.67 ! albertel 194: $result.=$msg.'<br />';
! 195: }
! 196: } elsif ($target eq 'web') {
! 197: my $name= &Apache::lonxml::get_param('name',$parstack,$safeeval);
! 198: if ($name eq '') {
! 199: $name=&Apache::lonnet::EXT('resource.title');
! 200: if ($name eq 'con_lost') { $name = ''; }
1.21 albertel 201: }
1.67 ! albertel 202: $Apache::lonhomework::name=$name;
! 203: if ($status eq 'CAN_ANSWER') {
! 204: # create a page header and exit
! 205: $result.="$head_tag_start<title>$name</title></head>\n
1.41 albertel 206: $body_tag_start\n
1.36 albertel 207: <form name=\"lonhomework\" method=\"POST\" action=\"".$ENV{'request.uri'}."\">".
208: '<input type="hidden" name="submitted" value="yes" />';
1.67 ! albertel 209: if ($ENV{'request.state'} eq "construct") {
! 210: $result.=
! 211: '<input type="hidden" name="problemmode" value="View" />
! 212: <input type="submit" name="problemmode" value="Edit" />
! 213: Random Seed:<input type="text" name="rndseed" width="10" value="'.
! 214: $rndseed.'" /><hr />';
! 215: }
! 216: # if we are viewing someone else preserve that info
! 217: if (defined $ENV{'form.grade_symb'}) {
! 218: foreach my $field ('symb','courseid','domain','username') {
! 219: $result .= '<input type="hidden" name="grade_'.$field.
! 220: '" value="'.$ENV{"form.grade_$field"}.'" />'."\n";
! 221: }
1.65 albertel 222: }
1.67 ! albertel 223: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER'
! 224: || $status eq 'CLOSED') {
! 225: $result.=$head_tag_start.
! 226: "<title>$name</title></head>\n$body_tag_start\n";
1.65 albertel 227: }
1.22 albertel 228: }
1.67 ! albertel 229: } elsif ($target eq 'edit') {
1.41 albertel 230: $result.=$head_tag_start."</head>".$body_tag_start.
1.67 ! albertel 231: '<form name="lonhomework" method="POST" action="'.
! 232: $ENV{'request.uri'}.'">
1.41 albertel 233: <input type="hidden" name="submitted" value="edit" />
234: <input type="hidden" name="problemmode" value="Edit" />
235: <input type="submit" name="problemmode" value="View" />
236: <input type="submit" name="Undo" value="undo" /> <hr />
1.49 albertel 237: <input type="submit" name="submit" value="Submit Changes" /><br />
1.41 albertel 238: ';
1.39 albertel 239: my $temp=&Apache::edit::insertlist($target,$token);
1.36 albertel 240: $result.=$temp;
1.67 ! albertel 241: } elsif ($target eq 'modified') {
1.37 albertel 242: $result=$token->[4];
243: $result.=&Apache::edit::handle_insert();
1.67 ! albertel 244: } else {
! 245: # page_start returned a starting result, delete it if we don't need it
! 246: $result = '';
1.37 albertel 247: }
1.67 ! albertel 248: return $result;
1.9 albertel 249: }
250:
251: sub end_problem {
1.40 albertel 252: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.16 albertel 253: my $result='';
1.24 albertel 254: my $status=$Apache::inputtags::status['-1'];
1.40 albertel 255: if ($target eq 'grade' || $target eq 'web' ) {
1.28 albertel 256: if ( $target eq 'grade' && $Apache::inputtags::part eq '0' &&
257: $status eq 'CAN_ANSWER') {
1.19 albertel 258: # if part is zero, no <part>s existed, so we need to the grading
259: &Apache::inputtags::grade;
260: } elsif ($Apache::inputtags::part eq '0') {
261: # if part is zero, no <part>s existed, so we need show the current
262: # grading status
1.20 albertel 263: $result.= &Apache::inputtags::gradestatus($Apache::inputtags::part);
1.41 albertel 264: }
1.22 albertel 265: if ($target eq 'web') {
266: if ($status eq 'CAN_ANSWER') {
267: $result.="</form></body>\n";
1.28 albertel 268: } elsif ($status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1.41 albertel 269: $result.="</body>\n";
270: }
1.50 albertel 271: $result.=&Apache::lonxml::xmlend();
1.22 albertel 272: }
1.65 albertel 273: if ($target eq 'grade') {
274: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
275: &finalize_storage();
276: }
277: } elsif ($target eq 'meta') {
1.18 albertel 278: if ($Apache::inputtags::part eq '0') {
1.16 albertel 279: $result=&Apache::response::mandatory_part_meta;
280: }
1.65 albertel 281: } elsif ($target eq 'edit') {
1.34 albertel 282: &Apache::lonxml::debug("in end_problem with $target, edit");
1.48 albertel 283: $result='<br /><input type="submit" name="submit" value="Submit Changes" />';
284: }
285: return $result;
286: }
287:
288: sub start_library {
289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
290: my ($result,$head_tag_start,$body_tag_start)=
291: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
292: if ($target eq 'edit') {
293: $result.=$head_tag_start."</head>".$body_tag_start.
294: '<form name="lonhomework" method="POST" action="'.$ENV{'request.uri'}.'">
295: <input type="hidden" name="submitted" value="edit" />
296: <input type="hidden" name="problemmode" value="Edit" />
297: <input type="submit" name="problemmode" value="View" />
298: <input type="submit" name="Undo" value="undo" /> <hr />
299: ';
300: my $temp=&Apache::edit::insertlist($target,$token);
301: $result.=$temp;
302: return $result;
303: }
304: if ($target eq 'modified') {
305: $result=$token->[4];
306: $result.=&Apache::edit::handle_insert();
307: return $result;
308: }
309: return '';
310: }
311:
312: sub end_library {
313: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
314: my $result='';
315: if ($target eq 'edit') {
1.34 albertel 316: $result='<br /><input type="submit" name="submit" value="Submit Changes" />';
317: }
1.16 albertel 318: return $result;
1.1 albertel 319: }
320:
321: sub start_block {
1.40 albertel 322: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.1 albertel 323:
1.38 albertel 324: if ($target eq 'web' || $target eq 'grade') {
325: my $code = @$parstack[$#$parstack];
326: $code =~ s/\"//g;
327: $code .=';return $condition;';
328: # print "<br />$code<br />";
329: my $result = &Apache::run::run($code,$safeeval);
330: &Apache::lonxml::debug("block :$code: returned :$result:");
331: if ( ! $result ) {
332: my $skip=&Apache::lonxml::get_all_text("/block",$$parser[$#$parser]);
333: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[$#$parser]");
334: }
1.1 albertel 335: }
336: return "";
337: }
338:
339: sub end_block {
1.38 albertel 340: return '';
1.4 tsai 341: }
342:
343: sub start_while {
1.40 albertel 344: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.4 tsai 345:
346: my $code = @$parstack[$#$parstack];
347: $code =~ s/\"//g;
348: $code .=';return $condition;';
349:
1.5 tsai 350: push( @Apache::structuretags::whileconds, $code);
1.4 tsai 351: my $result = &Apache::run::run($code,$safeeval);
352: my $bodytext=$$parser[$#$parser]->get_text("/while");
1.5 tsai 353: push( @Apache::structuretags::whilebody, $bodytext);
354: if ( $result ) {
1.8 albertel 355: &Apache::lonxml::newparser($parser,\$bodytext);
1.4 tsai 356: }
357: return "";
358: }
359:
360: sub end_while {
1.40 albertel 361: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.5 tsai 362: my $code = pop @Apache::structuretags::whileconds;
363: my $bodytext = pop @Apache::structuretags::whilebody;
364: my $result = &Apache::run::run($code,$safeeval);
365: if ( $result ) {
1.8 albertel 366: &Apache::lonxml::newparser($parser,\$bodytext);
1.5 tsai 367: }
368: return "";
1.1 albertel 369: }
1.6 tsai 370:
371: # <randomlist>
372: # <tag1>..</tag1>
373: # <tag2>..</tag2>
374: # <tag3>..</tag3>
375: # ...
376: # </randomlist>
377: sub start_randomlist {
1.40 albertel 378: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9 albertel 379: my $body= &Apache::lonxml::get_all_text("/randomlist",$$parser[$#$parser]);
1.6 tsai 380: my $b_parser= HTML::TokeParser->new(\$body);
381: my $b_tok;
382: my @randomlist;
383: my $list_item;
384:
385: while($b_tok = $b_parser->get_token() ) {
386: if($b_tok->[0] eq 'S') { # start tag
387: # get content of the tag until matching end tag
388: # get all text upto the matching tag
389: # and push the content into @randomlist
1.9 albertel 390: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],$b_parser);
1.7 tsai 391: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1.6 tsai 392: push(@randomlist,$list_item);
1.32 albertel 393: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4], $list_item</b>";
1.6 tsai 394: }
395: if($b_tok->[0] eq 'T') { # text
396: # what to do with text in between tags?
1.32 albertel 397: # print "<b>TEXT $b_tok->[1]</b><br />";
1.6 tsai 398: }
399: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1.32 albertel 400: # print "<b>END-TAG $b_tok->[1]</b><br />";
1.6 tsai 401: # }
402: }
1.7 tsai 403: my @idx_arr = (0 .. $#randomlist);
404: &Apache::structuretags::shuffle(\@idx_arr);
405: my $bodytext = '';
406: for(0 .. $#randomlist) {
407: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
408: }
1.8 albertel 409:
410: &Apache::lonxml::newparser($parser,\$bodytext);
1.6 tsai 411: return "";
1.7 tsai 412: }
413:
414: sub shuffle {
415: my $a=shift;
416: my $i;
1.52 albertel 417: &Apache::response::setrandomnumber();
1.7 tsai 418: for($i=@$a;--$i;) {
419: my $j=int rand($i+1);
420: next if $i == $j;
421: @$a[$i,$j] = @$a[$j,$i];
422: }
1.6 tsai 423: }
424:
425: sub end_randomlist {
1.46 albertel 426: return '';
1.6 tsai 427: }
428:
1.11 albertel 429: sub start_part {
1.40 albertel 430: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.39 albertel 431: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
1.47 albertel 432: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
1.14 albertel 433: $Apache::inputtags::part=$id;
1.18 albertel 434: @Apache::inputtags::responselist = ();
1.51 albertel 435: @Apache::inputtags::previous=();
1.15 www 436: if ($target eq 'meta') {
1.16 albertel 437: return &Apache::response::mandatory_part_meta;
1.37 albertel 438: } elsif ($target eq 'web' || $target eq 'grade') {
1.55 www 439: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1.23 albertel 440: push (@Apache::inputtags::status,$status);
441: my $expression='$external::datestatus="'.$status.'";';
442: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
443: &Apache::run::run($expression,$safeeval);
444: if ( $status eq 'CLOSED' ) {
1.21 albertel 445: my $bodytext=&Apache::lonxml::get_all_text("/part",$$parser[$#$parser]);
446: if ( $target eq "web" ) {
1.55 www 447: return "<br />Part is not open to be viewed. It $accessmsg<br />";
1.21 albertel 448: }
449: }
1.15 www 450: }
1.19 albertel 451: return '';
1.11 albertel 452: }
453:
454: sub end_part {
1.40 albertel 455: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.18 albertel 456: &Apache::lonxml::debug("in end_part $target ");
1.28 albertel 457: my $status=$Apache::inputtags::status['-1'];
1.23 albertel 458: pop @Apache::inputtags::status;
1.19 albertel 459: if ( $target eq 'meta' ) { return ''; }
1.37 albertel 460: if ( $target eq 'grade' && $status eq 'CAN_ANSWER') {
461: return &Apache::inputtags::grade;
1.28 albertel 462: }
1.37 albertel 463: if ($target eq 'web') {
464: return &Apache::inputtags::gradestatus($Apache::inputtags::part);
465: }
466: return '';
1.11 albertel 467: }
1.1 albertel 468:
1.25 albertel 469: sub start_preduedate {
1.40 albertel 470: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 471: if ($target eq 'web' || $target eq 'grade') {
1.29 albertel 472: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
473: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER' ) {
1.26 albertel 474: &Apache::lonxml::get_all_text("/preduedate",$$parser[$#$parser]);
1.24 albertel 475: }
476: }
477: return '';
478: }
479:
1.25 albertel 480: sub end_preduedate {
1.24 albertel 481: return '';
482: }
483:
1.25 albertel 484: sub start_postanswerdate {
1.40 albertel 485: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 486: if ($target eq 'web' || $target eq 'grade') {
1.24 albertel 487: if ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER') {
1.26 albertel 488: &Apache::lonxml::get_all_text("/postanswerdate",$$parser[$#$parser]);
1.24 albertel 489: }
490: }
491: return '';
492: }
493:
1.25 albertel 494: sub end_postanswerdate {
1.24 albertel 495: return '';
496: }
497:
1.25 albertel 498: sub start_notsolved {
1.40 albertel 499: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 500: if ($target eq 'web' || $target eq 'grade') {
1.24 albertel 501: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
502: &Apache::lonxml::debug("not solved has :$gradestatus:");
503: if ($gradestatus =~ /^correct/) {
504: &Apache::lonxml::debug("skipping");
1.26 albertel 505: &Apache::lonxml::get_all_text("/notsolved",$$parser[$#$parser]);
1.24 albertel 506: }
507: }
508: return '';
509: }
510:
1.25 albertel 511: sub end_notsolved {
1.24 albertel 512: return '';
513: }
514:
515: sub start_solved {
1.40 albertel 516: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 517: if ($target eq 'web' || $target eq 'grade') {
1.24 albertel 518: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
519: if ($gradestatus !~ /^correct/) {
520: &Apache::lonxml::get_all_text("/solved",$$parser[$#$parser]);
521: }
522: }
523: return '';
524: }
525:
526: sub end_solved {
527: return '';
528: }
1.34 albertel 529:
530: sub start_startouttext {
1.40 albertel 531: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.35 albertel 532: my @result=(''.'');
533: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
534: return (@result);
1.34 albertel 535: }
536: sub end_startouttext {
1.40 albertel 537: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 538: my $result='';
1.35 albertel 539: my $text='';
540:
1.34 albertel 541: if ($target eq 'edit') {
1.35 albertel 542: $text=&Apache::lonxml::get_all_text("endouttext",$$parser[$#$parser]);
1.43 albertel 543: $result.=&Apache::edit::start_table($token)."<tr><td>Text Block</td>
1.42 albertel 544: <td>Delete:".
545: &Apache::edit::deletelist($target,$token)
546: ."</td>
547: <td>".
548: &Apache::edit::insertlist($target,$token).
549: "</td>
550: </tr><tr><td colspan=\"3\">\n".
1.45 albertel 551: &Apache::edit::editfield($token->[1],$text,"",50,4);
1.35 albertel 552: }
553: if ($target eq 'modified') {
554: $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']);
555: $result='<startouttext />'.&Apache::edit::modifiedfield();
1.34 albertel 556: }
557: return $result;
558: }
559: sub start_endouttext {
1.40 albertel 560: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.34 albertel 561: my $result='';
1.43 albertel 562: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
1.35 albertel 563: if ($target eq "modified") { $result='<endouttext />'; }
1.34 albertel 564: return $result;
565: }
566: sub end_endouttext {
1.40 albertel 567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.35 albertel 568: my @result=('','');
569: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
570: return (@result);
1.34 albertel 571: }
1.45 albertel 572: sub delete_startouttext {
573: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
574: # my $text=&Apache::lonxml::get_all_text("endouttext",$$parser['-1']);
575: my $text=$$parser['-1']->get_text("/endouttext");
576: my $token=$$parser['-1']->get_token();
577: &Apache::lonxml::debug("Deleting :$text: and :$token->[0]:$token->[1]:$token->[2]: for startouttext");
578: &Apache::lonxml::end_tag($tagstack,$parstack,$token);
579: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
580: # they did the last time round
581: &Apache::lonxml::increasedepth($token);
582: &Apache::lonxml::decreasedepth($token);
583: return 1;
584: }
1.34 albertel 585:
1.1 albertel 586: 1;
587: __END__
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