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[LON-CAPA] /
loncom /
xml /
scripttag.pm
Revision
1.34:
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Thu Feb 22 00:49:03 2001 UTC (23 years, 4 months ago) by
albertel
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- changed redirection, and output stack to work more intelligently, checkount radiobuttonresponse for a good example, should have to muck with @Apache::lonxml::outputstack and $Apache::lonxml::redirection directly use startredirection and enredirection
# The LearningOnline Network with CAPA
# <script> definiton
# 2/21 Guy
package Apache::scripttag;
use strict;
use Apache::lonnet;
sub BEGIN {
&Apache::lonxml::register('Apache::scripttag',('script','scriptlib',
'parserlib','import',
'window','display'));
}
sub start_script {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
my $args ='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
my $type = &Apache::run::run("{$args;".'return $type}',$safeeval);
my $result='';
#&Apache::lonxml::debug("found type of $type");
if ($type eq "loncapa/perl") {
my $bodytext=&Apache::lonxml::get_all_text("/script",$$parser[$#$parser]);
if ( $target eq "modified" ) {
} elsif ( $target eq "web" || $target eq "grade" ) {
&Apache::run::run($bodytext,$safeeval);
} elsif ($target eq "edit" ) {
&Apache::run::run($bodytext,$safeeval);
$result="<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
$result.=&editfield($token->[1],$bodytext);
}
} else {
if ($target ne "meta") { $result = $token->[4]; }
}
return $result;
}
sub end_script {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
if ( $target eq "meta" ) { return ''; }
my $args ='';
if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
my $type = &Apache::run::run("{$args;".'return $type}',$safeeval);
my $result='';
#other script blocks need to survive
if ($type ne "loncapa/perl") { return $token->[2]; }
return '';
}
sub start_display {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
my $args ='';
if ( $#$parstack > -1 ) {
$args=$$parstack[$#$parstack];
}
my $bodytext=&Apache::lonxml::get_all_text("/display",$$parser[$#$parser]);
if ( $target eq "modified" ) {
}
my $result=&Apache::run::run($bodytext,$safeeval);
if ($target eq 'grade' ) {
# grade should produce no output
$result='';
}
if ($target eq "edit" ) {
$result =
"<br /> <$token->[1]> output: <br />$bodytext<br />Source:<br />";
$result.=&editfield($token->[1],$bodytext);
}
return $result;
}
sub end_display {
}
sub start_scriptlib {
my ($target,$token,$parstack,$parser,$safeeval)=@_;
my $bodytext=$$parser[$#$parser]->get_text("/scriptlib");
my $result ="";
$bodytext=&Apache::run::evaluate($bodytext,$safeeval,
$$parstack[$#$parstack]);
my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
$bodytext);
my $script=&Apache::lonnet::getfile($location);
if ($script == -1) {
&Apache::lonxml::error("<b> Unable to find <i>$location</i> for scriptlib</b>");
return "";
}
&Apache::run::run($script,$safeeval);
#&Apache::lonxml::debug("ran $bodytext:<br />".&Apache::lonnet::getfile($bodytext)."<br />");
if ($target eq "edit" ) {
$result.=&editfield($token->[1],$bodytext);
}
return $result;
}
sub end_scriptlib {}
sub start_parserlib {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext=$$parser[$#$parser]->get_text("/parserlib");
my $result ="";
$bodytext=&Apache::run::evaluate($bodytext,$safeeval,
$$parstack[$#$parstack]);
my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],
$bodytext);
my $styletext=&Apache::lonnet::getfile($location);
#&Apache::lonxml::debug("found :$bodytext: in :$location: with :$styletext:");
if ($styletext == -1) {
&Apache::lonxml::error("<b> Unable to find <i>$location</i> for parserlib</b>");
return "";
}
%$style = ( %$style , &Apache::style::styleparser($target,$styletext));
if ($target eq "edit" ) {
$result=&editfield($token->[1],$bodytext);
}
return $result;
}
sub end_parserlib {
}
sub start_window {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target eq 'web') {
&Apache::lonxml::startredirection;
}
return $result;
}
sub end_window {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
my $result;
if ($target eq 'web') {
my $output=&Apache::lonxml::endredirection;
$output =~ s/\"/\"\;/g;
$result = "<a href=\"javascript:newWindow=open(\'\',\'new_W\',\'width=500,height=200\');newWindow.document.open(\'text/html\',\'replace\');newWindow.document.writeln(\'<html><head><title>newwindow</title></head><body bgcolor="#FFFFFF"> $output </body></html>\');newWindow.document.close();void(0);\"><sup>*</sup></a>";
} else {
$result = '';
}
return $result;
}
sub start_import {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
my $bodytext=$$parser[$#$parser]->get_text("/import");
my $result ="";
$bodytext=Apache::run::evaluate($bodytext,$safeeval,$$parstack[$#$parstack]);
my $location=&Apache::lonnet::filelocation($Apache::lonxml::pwd['-1'],$bodytext);
my $file=&Apache::lonnet::getfile($location);
if ($file == -1) {
&Apache::lonxml::error("<b> Unable to find <i>$bodytext $location</i> for import</b>");
return "";
}
my $dir=$location;
$dir=~s:/[^/]*$::;
# &Apache::lonxml::debug("directory $dir $location file $file \n<b>END</b>\n");
&Apache::lonxml::newparser($parser,\$file,$dir);
if ($target eq "edit" ) {
$result.=&editfield($token->[1],$bodytext);
$result.="Click<a href=\"/res/$bodytext\">here</a> to edit<br />"
}
return '';
}
sub end_import {
}
sub start_meta {
my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
my $result = '';
if ($target ne 'meta') {
$result = &Apache::lonxml::get_all_text("/meta",$$parser[$#$parser]);
$result = '';
return $result;
} else {
return $result;
}
}
sub end_meta {
}
sub editfield {
my ($tag,$data)=@_;
my $count=0;
my $maxlength=-1;
map { $count++;
if (length($_) > $maxlength) { $maxlength = length ($_); }
} split ("\n", $data);
return "<br />\n<$tag><br />\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea><br />\n</$tag><br />\n";
}
sub getfilenothere {
my ($filename) = @_;
my $a="";
$filename=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
$filename="/home/httpd/html/res".$filename;
if (! -e $filename ) {
&Apache::lonnet::subscribe($filename);
&Apache::lonnet::repcopy($filename);
}
if (! -e $filename ) { return -1; };
my $fh=Apache::File->new($filename);
while (<$fh>) {
$a .=$_;
}
return $a
}
1;
__END__
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