--- loncom/homework/radiobuttonresponse.pm 2004/03/05 19:44:18 1.82
+++ loncom/homework/radiobuttonresponse.pm 2019/02/03 22:02:21 1.157.2.3
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# mutliple choice style responses
#
-# $Id: radiobuttonresponse.pm,v 1.82 2004/03/05 19:44:18 albertel Exp $
+# $Id: radiobuttonresponse.pm,v 1.157.2.3 2019/02/03 22:02:21 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -18,426 +18,1231 @@
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
-# along with LON-CAPA; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+# along with LON-CAPA; if not, write to the Free Software# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
+
+
package Apache::radiobuttonresponse;
use strict;
use HTML::Entities();
+use Apache::lonlocal;
+use Apache::lonnet;
+use Apache::response;
+use Apache::caparesponse;
+
+my $default_bubbles_per_line = 10;
+my @alphabet = ( 'A' .. 'Z' ); # Foil labels.
+
+
+
BEGIN {
- &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
+ &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
+}
+
+#---------------------------------------------------------------------------
+#
+# Generic utility subs.
+
+sub bubble_line_count {
+ my ($numfoils, $bubbles_per_line) = @_;
+ my $bubble_lines;
+ $bubble_lines = int($numfoils / $bubbles_per_line);
+ if (($numfoils % $bubbles_per_line) != 0) {
+ $bubble_lines++;
+ }
+ return $bubble_lines;
+
}
+
+
+#------------------------------------------------------------------------------
+#
+# XML handlers.
sub start_radiobuttonresponse {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $result;
- #when in a radiobutton response use these
- &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
- push (@Apache::lonxml::namespace,'radiobuttonresponse');
- my $id = &Apache::response::start_response($parstack,$safeeval);
- %Apache::hint::radiobutton=();
- if ($target eq 'meta') {
- $result=&Apache::response::meta_package_write('radiobuttonresponse');
- } elsif ($target eq 'edit' ) {
- $result.=&Apache::edit::start_table($token).
- '<tr><td>'.&Apache::lonxml::description($token).
- &Apache::loncommon::help_open_topic('Radio_Response_Problems').
- "</td><td>Delete:".
- &Apache::edit::deletelist($target,$token)
- ."</td><td> ".&Apache::edit::end_row()
- .&Apache::edit::start_spanning_row();
-
- $result.=
- &Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
- &Apache::edit::select_arg('Randomize Foil Order','randomize',
- ['yes','no'],$token).
- &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
- } elsif ($target eq 'modified') {
- my $constructtag=&Apache::edit::get_new_args($token,$parstack,
- $safeeval,'max','randomize');
- if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
- } elsif ($target eq 'tex') {
- my $type=&Apache::lonxml::get_param('TeXtype',$parstack,$safeeval,undef,0);
- if ($type eq '1') {
- $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
- } elsif ($type eq 'A') {
- $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
- } elsif ($type eq 'a') {
- $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
- } elsif ($type eq 'i') {
- $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
- }
- $result .= '\begin{enumerate}';
- } elsif ($target eq 'analyze') {
- my $part_id="$Apache::inputtags::part.$id";
- push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
- }
- return $result;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result;
+
+ #when in a radiobutton response use these
+ &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
+ push (@Apache::lonxml::namespace,'radiobuttonresponse');
+ my $id = &Apache::response::start_response($parstack,$safeeval);
+
+ %Apache::hint::radiobutton=();
+ undef(%Apache::response::foilnames);
+ if ($target eq 'meta') {
+ $result=&Apache::response::meta_package_write('radiobuttonresponse');
+ } elsif ($target eq 'edit' ) {
+ $result.=&Apache::edit::start_table($token)
+ .'<tr><td>'.&Apache::loncommon::insert_folding_button()
+ .&Apache::lonxml::description($token)
+ .&Apache::loncommon::help_open_topic('Radio_Response_Problems')
+ .'</td>'
+ .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
+ .&Apache::edit::deletelist($target,$token)
+ .'</span></td>'
+ .'<td> '.&Apache::edit::end_row()
+ .&Apache::edit::start_spanning_row();
+ $result.=
+ &Apache::edit::text_arg('Max Number Of Shown Foils:','max',
+ $token,'4').
+ &Apache::edit::select_arg('Randomize Foil Order:','randomize',
+ ['yes','no'],$token).
+ &Apache::edit::select_arg('Display Direction:','direction',
+ ['vertical','horizontal'],$token).
+ &Apache::edit::end_row().
+ &Apache::edit::start_spanning_row()."\n";
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args($token,$parstack,
+ $safeeval,'max',
+ 'randomize','direction');
+ if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+
+ } elsif ( $target eq 'tex' ) {
+ my $type =
+ &Apache::lonxml::get_param( 'TeXtype', $parstack, $safeeval, undef,
+ 0 );
+ if ( $type eq '1' ) {
+ $result .= ' \renewcommand{\labelenumi}{\arabic{enumi}.}';
+ }
+ elsif ( $type eq 'A' ) {
+ $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
+ }
+ elsif ( $type eq 'a' ) {
+ $result .= ' \renewcommand{\labelenumi}{\alph{enumi}.}';
+ }
+ elsif ( $type eq 'i' ) {
+ $result .= ' \renewcommand{\labelenumi}{\roman{enumi}.}';
+ }
+ else {
+ $result .= ' \renewcommand{\labelenumi}{\Alph{enumi}.}';
+ }
+
+ }
+ elsif ( $target eq 'analyze' ) {
+ my $part_id = "$Apache::inputtags::part.$id";
+ $Apache::lonhomework::analyze{"$part_id.type"} = 'radiobuttonresponse';
+ push (@{ $Apache::lonhomework::analyze{"parts"} },$part_id);
+ }
+ return $result;
}
sub end_radiobuttonresponse {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $result;
- if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
- if ($target eq 'tex') { $result .= '\end{enumerate}'; }
- &Apache::response::end_response;
- pop @Apache::lonxml::namespace;
- &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
- return $result;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result;
+ if ( $target eq 'edit' ) {
+ $result = &Apache::edit::end_table();
+ }
+ &Apache::response::end_response;
+ pop @Apache::lonxml::namespace;
+ &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
+ undef(%Apache::response::foilnames);
+ return $result;
}
%Apache::response::foilgroup=();
sub start_foilgroup {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $result;
- %Apache::response::foilgroup=();
- $Apache::radiobuttonresponse::conceptgroup=0;
- &Apache::response::setrandomnumber();
- if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
- $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
- }
- return $result;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ %Apache::response::foilgroup=();
+ $Apache::radiobuttonresponse::conceptgroup=0;
+ &Apache::response::pushrandomnumber(undef,$target);
+ return;
}
sub storesurvey {
- if ( !defined($ENV{'form.submitted'})) { return ''; }
- my $response = $ENV{'form.HWVAL_'.$Apache::inputtags::response['-1']};
- &Apache::lonxml::debug("Here I am!:$response:");
- if ( $response !~ /[0-9]+/) { return ''; }
- my $id = $Apache::inputtags::response['-1'];
- my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
- my %responsehash;
- $responsehash{$whichfoils[$response]}=$response;
- $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=&Apache::lonnet::hash2str(%responsehash);
- $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='SUBMITTED';
- &Apache::lonxml::debug("submitted a $response<br />\n");
- return '';
+ my ($style) = @_;
+ if ( !&Apache::response::submitted() ) { return ''; }
+ my $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
+ &Apache::lonxml::debug("Here I am!:$response:");
+ if ( $response !~ /[0-9]+/) { return ''; }
+ my $part = $Apache::inputtags::part;
+ my $id = $Apache::inputtags::response['-1'];
+ my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
+ my %responsehash;
+ $responsehash{$whichfoils[$response]}=$response;
+ my $responsestr=&Apache::lonnet::hash2str(%responsehash);
+ $Apache::lonhomework::results{"resource.$part.$id.submission"}=
+ $responsestr;
+ my %previous=&Apache::response::check_for_previous($responsestr,$part,$id);
+ my $ad;
+ if ($style eq 'anonsurvey') {
+ $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS';
+ } elsif ($style eq 'anonsurveycred') {
+ $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='ANONYMOUS_CREDIT';
+ } elsif ($style eq 'surveycred') {
+ $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED_CREDIT';
+ } else {
+ $ad=$Apache::lonhomework::results{"resource.$part.$id.awarddetail"}='SUBMITTED';
+ }
+ &Apache::response::handle_previous(\%previous,$ad);
+ &Apache::lonxml::debug("submitted a $response<br />\n");
+ return '';
}
+
sub grade_response {
- my ($max,$randomize)=@_;
- #keep the random numbers the same must always call this
- my ($answer,@whichfoils)=&whichfoils($max,$randomize);
- if (!defined($ENV{'form.submitted'})) { return; }
- my $response;
- if ($ENV{'form.submitted'} eq 'scantron') {
- $response=&Apache::response::getresponse();
- } else {
- $response = $ENV{'form.HWVAL_'.$Apache::inputtags::response['-1']};
- }
- if ( $response !~ /[0-9]+/) { return; }
- my $part=$Apache::inputtags::part;
- my $id = $Apache::inputtags::response['-1'];
- my %responsehash;
- $responsehash{$whichfoils[$response]}=$response;
- my $responsestr=&Apache::lonnet::hash2str(%responsehash);
- my %previous=&Apache::response::check_for_previous($responsestr,
- $part,$id);
- $Apache::lonhomework::results{"resource.$part.$id.submission"}=
- $responsestr;
- &Apache::lonxml::debug("submitted a $response<br />\n");
- my $ad;
- if ($response == $answer) {
- $ad='EXACT_ANS';
- } else {
- $ad='INCORRECT';
- }
- $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
- &Apache::response::handle_previous(\%previous,$ad);
+ my ($answer, $whichfoils, $bubbles_per_line)=@_;
+
+ if ( !&Apache::response::submitted() ) { return; }
+ my $response;
+
+ if ($env{'form.submitted'} eq 'scantron') {
+ $response = &Apache::response::getresponse(1,undef,
+ &bubble_line_count(scalar(@{ $whichfoils}),
+ $bubbles_per_line),
+ $bubbles_per_line);
+
+ } else {
+ $response = $env{'form.HWVAL_'.$Apache::inputtags::response['-1']};
+ }
+
+
+ if ( $response !~ /[0-9]+/) { return; }
+ my $part=$Apache::inputtags::part;
+ my $id = $Apache::inputtags::response['-1'];
+ my %responsehash;
+ $responsehash{$whichfoils->[$response]}=$response;
+ my $responsestr=&Apache::lonnet::hash2str(%responsehash);
+ my %previous=&Apache::response::check_for_previous($responsestr,
+ $part,$id);
+ $Apache::lonhomework::results{"resource.$part.$id.submission"}=
+ $responsestr;
+ &Apache::lonxml::debug("submitted a $response<br />\n");
+ my $ad;
+ if ($response == $answer) {
+ $ad='EXACT_ANS';
+ } else {
+ $ad='INCORRECT';
+ }
+ $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
+ &Apache::response::handle_previous(\%previous,$ad);
}
sub end_foilgroup {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+
+ my $result;
+ my $bubble_lines;
+ my $answer_count;
+ my $id = $Apache::inputtags::response['-1'];
+ my $part = $Apache::inputtags::part;
+ my $bubbles_per_line = &getbubblesnum($part,$id);
+
+
+ if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
+ $target eq 'tex' || $target eq 'analyze') {
+ my $style = $Apache::lonhomework::type;
+ my $direction = &Apache::lonxml::get_param('direction',$parstack,
+ $safeeval,'-2');
+ if ( (($style eq 'survey') || ($style eq 'surveycred') ||
+ ($style eq 'anonsurvey') || ($style eq 'anonsurveycred'))
+ && ($target ne 'analyze')) {
+ if ($target eq 'web' || $target eq 'tex') {
+ $result=&displayallfoils($direction, $target);
+ } elsif ( $target eq 'answer' ) {
+ $result=&displayallanswers();
+ } elsif ( $target eq 'grade' ) {
+ $result=&storesurvey($style);
+ }
+ $answer_count = scalar(@{$Apache::response::foilgroup{'names'}});
- my $result;
- if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
- $target eq 'tex' || $target eq 'analyze') {
- my $style = $Apache::lonhomework::type;
- if ( $style eq 'survey' && $target ne 'analyze') {
- if ($target eq 'web' || $target eq 'tex') {
- $result=&displayallfoils();
- } elsif ( $target eq 'answer' ) {
- $result=&displayallanswers();
- } elsif ( $target eq 'grade' ) {
- $result=&storesurvey();
- }
- } else {
- my $name;
- my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
- my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
- $safeeval,'-2');
- if ($target eq 'web' || $target eq 'tex') {
- $result=&displayfoils($target,$max,$randomize);
- } elsif ($target eq 'answer' ) {
- $result=&displayanswers($max,$randomize);
- } elsif ( $target eq 'grade') {
- &grade_response($max,$randomize);
- } elsif ( $target eq 'analyze') {
- my @shown = &whichfoils($max,$randomize);
- &Apache::response::analyze_store_foilgroup(\@shown,
- ['text','value','location']);
- my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
- push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
- ('true','false'));
- }
- }
- }
- &Apache::lonxml::increment_counter();
- return $result;
+ } else {
+
+ my $name;
+ my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,
+ '-2');
+ my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
+ $safeeval,'-2');
+ my ($answer, @shown) = &whichfoils($max, $randomize);
+ $answer_count = scalar(@shown);
+
+ if ($target eq 'web' || $target eq 'tex') {
+ $result=&displayfoils($target,
+ $answer, \@shown,
+ $direction,
+ $bubbles_per_line);
+ } elsif ($target eq 'answer' ) {
+ $result=&displayanswers($answer, \@shown, $bubbles_per_line);
+ } elsif ( $target eq 'grade') {
+ &grade_response($answer, \@shown, $bubbles_per_line);
+ } elsif ( $target eq 'analyze') {
+ my $bubble_lines = &bubble_line_count($answer_count,
+ $bubbles_per_line);
+ &Apache::response::analyze_store_foilgroup(\@shown,
+ ['text','value','location']);
+ my $part_id="$part.$id";
+ push (@{ $Apache::lonhomework::analyze{"$part_id.options"} },
+ ('true','false'));
+
+ }
+ }
+ $Apache::lonxml::post_evaluate=0;
+ }
+ if ($target eq 'web') {
+ &Apache::response::setup_prior_tries_hash(\&format_prior_answer,
+ [\%Apache::response::foilgroup]);
+ }
+ &Apache::response::poprandomnumber();
+ $bubble_lines = &bubble_line_count($answer_count, $bubbles_per_line);
+ &Apache::lonxml::increment_counter($bubble_lines,
+ "$part.$id");
+ if ($target eq 'analyze') {
+ &Apache::lonhomework::set_bubble_lines();
+ }
+ return $result;
+}
+sub getbubblesnum {
+ my ($part,$id) = @_;
+ my $bubbles_per_line;
+ my $default_numbubbles = $default_bubbles_per_line;
+ if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
+ ($env{'form.bubbles_per_row'} > 0)) {
+ $default_numbubbles = $env{'form.bubbles_per_row'};
+ }
+ $bubbles_per_line =
+ &Apache::response::get_response_param($part."_$id",'numbubbles',
+ $default_numbubbles);
+ return $bubbles_per_line;
}
sub getfoilcounts {
- my @names;
- my $truecnt=0;
- my $falsecnt=0;
- my $name;
- if ( $Apache::response::foilgroup{'names'} ) {
- @names= @{ $Apache::response::foilgroup{'names'} };
- }
- foreach $name (@names) {
- if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- $truecnt++;
- } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
- $falsecnt++;
- }
- }
- return ($truecnt,$falsecnt);
-}
-
-sub displayallfoils {
- my $result;
- &Apache::lonxml::debug("survey style display");
- my @names = @{ $Apache::response::foilgroup{'names'} };
- my $temp=0;
- my $id=$Apache::inputtags::response['-1'];
- my $part=$Apache::inputtags::part;
- my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
- my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
- if (&Apache::response::show_answer() ) {
- foreach my $name (@names) {
- if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
- $result.="<br />".$Apache::response::foilgroup{$name.'.value'};
+ my @names;
+ my $truecnt=0;
+ my $falsecnt=0;
+ my $name;
+ if ( $Apache::response::foilgroup{'names'} ) {
+ @names= @{ $Apache::response::foilgroup{'names'} };
+ }
+ foreach $name (@names) {
if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- $result.='<b>';
+ $truecnt++;
+ } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
+ $falsecnt++;
}
- $result .= $Apache::response::foilgroup{$name.'.text'};
- if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- $result.='</b>';
+ }
+ return ($truecnt,$falsecnt);
+}
+
+sub format_prior_answer {
+ my ($mode,$answer,$other_data) = @_;
+ my $foil_data = $other_data->[0];
+ my %response = &Apache::lonnet::str2hash($answer);
+ my ($name) = keys(%response);
+ return '<span class="LC_prior_radiobutton">'.
+ $foil_data->{$name.'.text'}.'</span>';
+
+}
+
+
+##
+# Return the last survey response. The logic is slightly different than that of
+# get_last_responses. TODO: See if there are chunks of code betweenthis and
+# get_last_reponses that are common and can be factored.
+#
+# @param $part - Problem part under consideration.
+# @param $showanswer - True if answers should be shown.
+# @param $id - Problem id.
+#
+# @return hash reference.
+# @retval reference to the has indexed by answer selection that
+# indicates the most recent answer.
+#
+sub get_last_survey_response {
+ my ($part, $showanswer, $id) = @_;
+
+ my $newvariation;
+ my $lastresponse; # stringified last response.
+
+ if (
+ (
+ (
+ $Apache::lonhomework::history{"resource.$part.type"} eq
+ 'randomizetry'
+ )
+ || ( $Apache::lonhomework::type eq 'randomizetry' )
+ )
+ && ( $Apache::inputtags::status[-1] eq 'CAN_ANSWER' )
+ )
+ {
+ if ( $env{ 'form.' . $part . '.rndseed' } ne
+ $Apache::lonhomework::history{"resource.$part.rndseed"} )
+ {
+ $newvariation = 1;
+ }
+ }
+ $showanswer = &Apache::response::show_answer();
+ unless ($newvariation && !$showanswer) {
+ if ((($env{'form.grade_username'} eq '') && ($env{'form.grade_domain'} eq '')) ||
+ (($env{'form.grade_username'} eq $env{'user.name'}) &&
+ ($env{'form.grade_domain'} eq $env{'user.domain'}))) {
+ $lastresponse = $Apache::lonhomework::history{"resource.$part.$id.submission"};
+ } else {
+ unless (($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') ||
+ ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) {
+ $lastresponse = $Apache::lonhomework::history{"resource.$part.$id.submission"};
+ }
+ }
+ }
+ my %lastresponse = &Apache::lonnet::str2hash($lastresponse);
+
+ return \%lastresponse;
+
+}
+##
+# Removes the names from a foil group that are marked as unused.
+#
+# @param $names - reference to the array of names to filter.
+#
+# @return arrayref
+# @retval reference to the filtered array.
+#
+sub remove_unused {
+ my ($names) = @_;
+ my @result;
+
+ foreach my $name (@{$names}) {
+ if ($Apache::response::foilgroup{$name . '.value'} ne 'unused') {
+ push(@result, $name);
}
- }
}
- } else {
- foreach my $name (@names) {
- if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
- $result.="<br /><input type=\"radio\" name=\"HWVAL_$Apache::inputtags::response['-1']\" value=\"$temp\" ";
- if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
- $result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
+ return \@result;
+}
+##
+# Displays all foils in a survey type problem for HTML rendition.
+# TODO: See if there is any logic in this sub that can be shared
+# with display_foils_html
+#
+# @param $names - ref to array of names of the foils to display.
+# @param $part - Problem part number.
+# @param $showanswer - If true, show the answers.
+# @param $lastresponse - Ref to the last response hash.
+# @param $direction - Display direction of the radiobuttons.
+#
+# @return string
+# @retval HTML required to display the resource in a browser.
+#
+sub display_survey_html {
+ my ($names, $part, $showanswer, $lastresponse, $direction) = @_;
+ my $result;
+
+ # Figure out a few fragments of html that depend onthe
+ # orientation of the radiobuttons:
+ # closing_html - HTML to emit at the end of the resource.
+ # pre_foil - HTML to emit prior to each foil.
+ # post_foil - HTML to emit following each foil.
+ #
+ # The opening HTML is just added to the $result now
+ #
+ # Figuring these outin advance compresses the loop over foils into something
+ # pretty simple:
+ #
+ # NOTE: There's probably a really cool way to do this with style sheets
+ # and picking the selector based on the orientation, if someone wants to puzzle
+ # that out. In that case, probably the whole thing lives in a <div> and each
+ # foil lives in a <p>
+ #
+
+
+ my ($opening_html, $closing_html, $pre_foil, $post_foil) =
+ &html_direction_fragments($direction);
+
+ $result = $opening_html;
+
+ # Different rendering depending on whether answers are shown:
+ # I played with different factorings but this seems the most concise/clear...
+ # although I don't like the $showanswer conditino inside the loop. Other things I tried
+ # - two loops..much longer code..no gain in clarity.
+ # - Using a visitor patttern passing it the rendering code chunklets and
+ # an anonymous hash reference for state data etc. Very cool but
+ # quite a bit more code and quite a bit less clear.
+
+ my $temp = 0;
+ foreach my $name (@{$names}) {
+ $result .= $pre_foil;
+
+ if ($showanswer) {
+ my $foiltext = $Apache::response::foilgroup{$name . '.text'};
+
+ # Bold the prior response:
+
+ if (defined($lastresponse->{$name})) {
+ $result .= '<b>' . $foiltext . '</b>';
+ } else {
+ $result .= $foiltext;
+ }
+ } else {
+ $result .= &html_radiobutton(
+ $part, $Apache::inputtags::response['-1'], $name, $lastresponse, $temp
+ );
+ }
+
+ $result .= $post_foil;
$temp++;
- }
}
- }
- return $result;
+
+
+ $result .= $closing_html;
+ return $result;
+
+}
+
+##
+# Generate LaTeX for surveys.
+#
+# @param $names - names of the foils to display.
+# @param $showanswer - flag that is true to display answers.
+# @param $lastresponse - Reference to a hash the indicates the last response.
+# @param $direction - Orientation of foils ('horiztonal' or otherwise).
+# @param $venv - LaTeX name for vertical env.
+#
+# @return string
+# @retval LaTeX rendering of the survey question.
+
+sub latex_survey {
+ my ($names, $showanswer, $lastresponse, $direction, $venv) = @_;
+
+ my $result;
+ if ($showanswer) {
+ $result .= "\\begin{$venv}";
+ foreach my $name (@{$names}) {
+
+
+ $result .= '\item \vskip -2mm ';
+
+ if ( defined( $lastresponse->{$name} ) ) {
+ $result .= '}';
+ }
+ $result .= $Apache::response::foilgroup{ $name . '.text' } . ' ';
+ }
+ $result .= "\\end{$venv}";
+
+ } elsif ( $env{'form.pdfFormFields'} eq 'yes'
+ && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+ $result .= &display_pdf_form($names, $direction, $venv);
+ } else {
+ if ($direction eq 'horizontal') {
+ my @foil_texts = &get_foil_texts($names);
+ $result .= &Apache::caparesponse::make_horizontal_latex_bubbles(
+ $names, \@foil_texts, '$\bigcirc$');
+ } else {
+ $result .= "\\begin{$venv}";
+
+ my $temp = 0;
+ my $i = 0;
+ foreach my $name (@{$names}) {
+
+ $result .= '\item \vskip -2mm ';
+
+ if ($env{'form.pdfFormFields'} ne 'yes'
+ or $Apache::inputtags::status[-1] ne 'CAN_ANSWER' )
+ {
+ $result .=
+ '$\bigcirc$'
+ . $Apache::response::foilgroup{ $name . '.text' }
+ . '\\\\'; #' stupid emacs
+ }
+
+ $i++;
+ $temp++;
+
+ $result .= '\vskip 0 mm ';
+ }
+ $result .= "\\end{$venv}";
+ }
+ }
+ return $result;
+}
+##
+# Figure out the LaTeX environment in which to wrap the LaTeX vertical output.
+#
+# @return string
+# @retval the environment name. The LaTeX should be wrapped a
+# \begin{retval} \end{retval} pair.
+#
+sub latex_vertical_environment {
+ if ($env{'form.pdfFormFields'} eq 'yes'
+ && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
+ return 'itemize';
+ } else {
+ return 'enumerate';
+ }
+}
+
+##
+# Figure out the key html fragments that depend on the rendering direction:
+#
+# @param $direction - 'horizontal' for horizontal direction.
+#
+# @return list
+# @retval (part_start, part_end, foil_start, foil_end)
+# Where:
+# - part_start is the HTML to emit at the start of the part.
+# - part_end is the HTML to emit at the end of the part.
+# - foil_start is the HTML to emit prior to each foil.
+# - foil_end is the HTML to emit after each foil
+#
+sub html_direction_fragments {
+ my $direction = shift;
+ if ($direction eq 'horizontal') {
+ return ('<table><tr>', '</tr></table>', '<td>', '</td>');
+ } else {
+ return ('', '<br />', '<br />', '');
+ }
+}
+
+##
+#
+# Displays all the foils of a problem in a format suitable for
+# surveys, surveys for credit, anonymous surveys and anonymous surveys for credit.
+#
+# @param $direction - Display direction of the choices ('horiztonal' or not).
+# @param $target - Rendering target.
+#
+# @return string
+# @retval Text that renders for the selected target.
+#
+sub displayallfoils{
+ my ( $direction, $target ) = @_;
+ my $result;
+ &Apache::lonxml::debug("survey style display");
+
+ my @names;
+
+ if ( $Apache::response::foilgroup{'names'} ) {
+ @names = @{ $Apache::response::foilgroup{'names'} };
+ }
+
+
+ my $id = $Apache::inputtags::response['-1'];
+ my $part = $Apache::inputtags::part;
+
+ my $showanswer = &Apache::response::show_answer();
+ my $lastresponse = &get_last_survey_response($part, $showanswer, $id);
+ my $used_names = &remove_unused(\@names);
+
+
+ if ($target ne 'tex') {
+ $result .= &display_survey_html(
+ $used_names, $part, $showanswer, $lastresponse, $direction
+ );
+ } else {
+
+ my $vertical_env = &latex_vertical_environment();
+ $result .= &latex_survey(
+ $used_names, $showanswer, $lastresponse, $direction, $vertical_env
+ );
+
+ }
+ return $result;
}
sub whichfoils {
- my ($max,$randomize)=@_;
+ my ($max,$randomize)=@_;
- my @truelist;
- my @falselist;
- my @whichfalse =();
- my ($truecnt,$falsecnt) = &getfoilcounts();
- my $count=0;
- # we will add in 1 of the true statements
- if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
- my $answer=int(&Math::Random::random_uniform() * ($count));
- &Apache::lonxml::debug("Count is $count, $answer is $answer");
- my @names;
- if ( $Apache::response::foilgroup{'names'} ) {
- @names= @{ $Apache::response::foilgroup{'names'} };
- }
- if (&Apache::response::showallfoils()) {
- @whichfalse=@names;
- } elsif ($randomize eq 'no') {
- &Apache::lonxml::debug("No randomization");
- my $havetrue=0;
- foreach my $name (@names) {
- if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- if (!$havetrue ) {
- push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
- }
- } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
- push (@whichfalse,$name);
- } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
- } else {
- &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
- }
- }
- } else {
- my $current=0;
- &Apache::lonhomework::showhash(%Apache::response::foilgroup);
- my (%top,%bottom);
- #first find out where everyone wants to be
- foreach my $name (@names) {
- $current++;
- if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- push (@truelist,$name);
- if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
- $top{$name}=$current;
- } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
- $bottom{$name}=$current;
+ my @truelist;
+ my @falselist;
+ my @whichfalse =();
+ my ($truecnt,$falsecnt) = &getfoilcounts();
+ my $count=0;
+ # we will add in 1 of the true statements
+ if ( $max>0 && ($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; $max=$count; }
+ my $answer=int(&Math::Random::random_uniform() * ($count));
+ &Apache::lonxml::debug("Count is $count, $answer is $answer");
+ my @names;
+ if ( $Apache::response::foilgroup{'names'} ) {
+ @names= @{ $Apache::response::foilgroup{'names'} };
+ }
+ if (&Apache::response::showallfoils()) {
+ @whichfalse=@names;
+ } elsif ($randomize eq 'no') {
+ &Apache::lonxml::debug("No randomization");
+ my $havetrue=0;
+ foreach my $name (@names) {
+ if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
+ if (!$havetrue ) {
+ push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
+ }
+ } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
+ push (@whichfalse,$name);
+ } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
+ } else {
+ &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
}
- } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
- push (@falselist,$name);
- if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
- $top{$name}=$current;
- } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
- $bottom{$name}=$current;
+ }
+ if ((!$havetrue) &&
+ ($Apache::lonhomework::type ne 'survey') &&
+ ($Apache::lonhomework::type ne 'surveycred') &&
+ ($Apache::lonhomework::type ne 'anonsurvey') &&
+ ($Apache::lonhomework::type ne 'anonsurveycred')) {
+ &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
+ }
+ } else {
+ my $current=0;
+ &Apache::lonhomework::showhash(%Apache::response::foilgroup);
+ my (%top,%bottom);
+ #first find out where everyone wants to be
+ foreach my $name (@names) {
+ $current++;
+ if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
+ push (@truelist,$name);
+ if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
+ $top{$name}=$current;
+ } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
+ $bottom{$name}=$current;
+ }
+ } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
+ push (@falselist,$name);
+ if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
+ $top{$name}=$current;
+ } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
+ $bottom{$name}=$current;
+ }
+ } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
+ } else {
+ &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>",'<>&"'));
+ }
+ }
+ #pick a true statement
+ my $notrue=0;
+ if (scalar(@truelist) == 0) { $notrue=1; }
+ my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
+ &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
+ my (@toplist, @bottomlist);
+ my $topcount=0;
+ my $bottomcount=0;
+ # assign everyone to either toplist/bottomlist or whichfalse
+ # which false is randomized, toplist bottomlist are in order
+ while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
+ &Apache::lonxml::debug("Have $#whichfalse max is $max");
+ my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
+ &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
+ $afalse=splice(@falselist,$afalse,1);
+ &Apache::lonxml::debug("Picked $afalse");
+ &Apache::lonhomework::showhash(('names'=>\@names));
+ &Apache::lonhomework::showhash(%top);
+ if ($top{$afalse}) {
+ $toplist[$top{$afalse}]=$afalse;
+ $topcount++;
+ } elsif ($bottom{$afalse}) {
+ $bottomlist[$bottom{$afalse}]=$afalse;
+ $bottomcount++;
+ } else {
+ push (@whichfalse,$afalse);
+ }
+ }
+ &Apache::lonxml::debug("Answer wants $answer");
+ my $truename=$truelist[$whichtrue];
+ my $dosplice=1;
+ if (($notrue) &&
+ ($Apache::lonhomework::type ne 'survey') &&
+ ($Apache::lonhomework::type ne 'surveycred') &&
+ ($Apache::lonhomework::type ne 'anonsurvey') &&
+ ($Apache::lonhomework::type ne 'anonsurveycred')) {
+ $dosplice=0;
+ &Apache::lonxml::error(&mt('There are no true statements available.').'<br />');
+ }
+ #insert the true statement, keeping track of where it wants to be
+ if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
+ $toplist[$top{$truename}]=$truename;
+ $answer=-1;
+ foreach my $top (reverse(@toplist)) {
+ if ($top) { $answer++;}
+ if ($top eq $truename) { last; }
}
- } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
+ $dosplice=0;
+ } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
+ $bottomlist[$bottom{$truename}]=$truename;
+ $answer=-1;
+ foreach my $bot (@bottomlist) {
+ if ($bot) { $answer++;}
+ if ($bot eq $truename) { last; }
+ }
+ $answer+=$topcount+$#whichfalse+1;
+ $dosplice=0;
} else {
- &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
+ if ($topcount>0 || $bottomcount>0) {
+ my $inc = 1;
+ if (($bottomcount > 0) && ($Apache::lonhomework::type ne 'exam')) {
+ $inc = 2;
+ }
+ $answer=int(&Math::Random::random_uniform() * ($#whichfalse+$inc))
+ + $topcount;
+ }
+ }
+ &Apache::lonxml::debug("Answer now wants $answer");
+ #add the top items to the top, bottom items to the bottom
+ for (my $i=0;$i<=$#toplist;$i++) {
+ if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
}
+ for (my $i=0;$i<=$#bottomlist;$i++) {
+ if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
+ }
+ #if the true statement is randomized insert it into the list
+ if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
}
- #pick a true statement
- my $notrue=0;
- if (scalar(@truelist) == 0) { $notrue=1; }
- my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
- &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
- my (@toplist, @bottomlist);
- my $topcount=0;
- my $bottomcount=0;
- # assign everyone to either toplist/bottomlist or whichfalse
- # which false is randomized, toplist bottomlist are in order
- while ((($#whichfalse+$topcount+$bottomcount) < $max-2) && ($#falselist > -1)) {
- &Apache::lonxml::debug("Have $#whichfalse max is $max");
- my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
- &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
- $afalse=splice(@falselist,$afalse,1);
- &Apache::lonxml::debug("Picked $afalse");
- &Apache::lonhomework::showhash(('names'=>\@names));
- &Apache::lonhomework::showhash(%top);
- if ($top{$afalse}) {
- $toplist[$top{$afalse}]=$afalse;
- $topcount++;
- } elsif ($bottom{$afalse}) {
- $bottomlist[$bottom{$afalse}]=$afalse;
- $bottomcount++;
- } else {
- push (@whichfalse,$afalse);
+ &Apache::lonxml::debug("Answer is $answer");
+ return ($answer,@whichfalse);
+}
+
+##
+# Return a list of foil texts given foil names.
+#
+# @param $whichfoils - Reference to a list of foil names.
+#
+# @return array
+# @retval foil texts
+#
+sub get_foil_texts {
+ my ($whichfoils) = @_;
+ my @foil_texts;
+
+ foreach my $name (@{$whichfoils}) {
+ push(@foil_texts, $Apache::response::foilgroup{$name . '.text'});
+ }
+ return @foil_texts;
+}
+
+##
+# Generate the HTML for a single html foil.
+# @param $part - The part for which the response is being generated.
+# @param $fieldname - The basename of the radiobutton field
+# @param $name - The foilname.
+# @param $last_responses - Reference to a hash that holds the most recent
+# responses.
+# @param $value - radiobutton value.
+#
+# @return text
+# @retval The generated html.
+#
+sub html_radiobutton {
+ my ($part, $fieldname, $name, $last_responses, $value) = @_;
+
+ my $result='<label>';
+
+ $result .= '<input type="radio" '
+ . 'onchange="javascript:setSubmittedPart(' . "'$part');\" "
+ . 'name="HWVAL_' . $fieldname . '" '
+ . 'value="'.$value.'"';
+
+ if (defined($last_responses->{$name})) {
+ $result .= ' checked="checked" ';
+ }
+ $result .= ' />';
+ $result .= $Apache::response::foilgroup{$name . '.text'};
+ $result .= '</label>';
+
+ return $result;
+
+}
+##
+# Return a reference to the last response hash. This hash has exactly
+# one or zero entries. The one entry is keyed by the foil 'name' of
+# the prior response
+#
+# @param $part - Number of the problem part.
+#
+# @return reference to a hash.
+# @retval see above.
+#
+sub get_last_response {
+ my ($part) = @_;
+
+ my $id = $Apache::inputtags::response['-1'];
+ my ( $lastresponse, $newvariation );
+
+ if ((( $Apache::lonhomework::history{"resource.$part.type"} eq 'randomizetry')
+ || ( $Apache::lonhomework::type eq 'randomizetry' )
+ )
+ && ( $Apache::inputtags::status[-1] eq 'CAN_ANSWER' )
+ )
+ {
+
+ if ( $env{ 'form.' . $part . '.rndseed' } ne
+ $Apache::lonhomework::history{"resource.$part.rndseed"} )
+ {
+ $newvariation = 1;
+ }
+ }
+ unless ($newvariation) {
+ if ((($env{'form.grade_username'} eq '') && ($env{'form.grade_domain'} eq '')) ||
+ (($env{'form.grade_username'} eq $env{'user.name'}) &&
+ ($env{'form.grade_domain'} eq $env{'user.domain'}))) {
+ $lastresponse =
+ $Apache::lonhomework::history{"resource.$part.$id.submission"};
+ } else {
+ unless (($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurvey') ||
+ ($Apache::lonhomework::history{"resource.$part.type"} eq 'anonsurveycred')) {
+ $lastresponse =
+ $Apache::lonhomework::history{"resource.$part.$id.submission"};
+
+ }
+ }
+ }
+
+ my %lastresponse = &Apache::lonnet::str2hash($lastresponse);
+
+ return \%lastresponse;
+}
+
+##
+# Display foils in html rendition.:
+#
+# @param $whichfoils - Set of foils to display.
+# @param $target - Rendition target...there are several html targets.
+# @param $direction - 'horizontal' if layout is horizontal.
+# @param $part - Part of the problem that's being displayed.
+# @param $show_answer- True if answers should be shown.
+#
+# @return string
+# @retval generated html.
+#
+sub display_foils_html {
+ my ($whichfoils, $target, $direction, $part, $show_answer) = @_;
+ my $result;
+
+
+ # if the answers get shown, we need to label each item as correct or
+ # incorrect.
+
+ my ($opening_html, $finalclose, $item_pretext, $item_posttext) =
+ &html_direction_fragments($direction);
+
+ $result .= $opening_html;
+
+
+ if ($show_answer) {
+
+ foreach my $name (@{$whichfoils}) {
+
+ # If the item gets further surrounded by tags, this
+ # holds the closures for those tages.
+
+ my $item_closetag = '';
+
+ $result .= $item_pretext;
+
+ # Label each foil as correct or incorrect:
+
+ if ($Apache::response::foilgroup{$name . '.value'} eq 'true') {
+ $result .= &mt('Correct:') . '<b>';
+ $item_closetag .= '</b>';
+
+ } else {
+ $result .= &mt('Incorrect');
+ }
+
+ # Web rendition encloses the
+ # item text in a label tag as well:
+
+ if ($target eq 'web') {
+ $result .= '<label>';
+ $item_closetag = '</label>' . $item_closetag;
+ }
+ $result .= $Apache::response::foilgroup{$name . '.text'};
+ $result .= $item_closetag;
+ $result .= $item_posttext;
+ $result .= "\n"; # make the html a bit more readable.
+ }
+
+
+ } else {
+ my $lastresponse = &get_last_response($part);
+
+ my $item_no = 0;
+ foreach my $name (@{$whichfoils}) {
+ $result .= $item_pretext;
+ $result .= &html_radiobutton(
+ $part, $Apache::inputtags::response[-1],
+ $name, $lastresponse, $item_no
+ );
+ $result .= $item_posttext;
+ $item_no++;
+ }
+
+ }
+ $result .= $finalclose;
+
+ return $result;
+}
+##
+# Display foils in exam mode for latex
+#
+# @param $whichfoils - Reference to an array that contains the foil names to display
+# @param $bubbles_per_line - Number of bubbles on a line.
+# @param $direction - Rendering direction 'horizontal' is what we're looking for.
+# @param $venv - Name of LaTeX environment to use for vertical rendering.
+#
+# @return string
+# @return the latex rendering of the exam problem.
+#
+#
+sub display_latex_exam {
+ my ($whichfoils, $bubbles_per_line, $direction, $venv) = @_;
+ my $result;
+ my $numlines;
+ my $bubble_number = 0;
+ my $line = 0;
+ my $i = 0;
+
+
+ if ($direction eq 'horizontal') {
+
+ # Marshall the display text for each foil and turn things over to
+ # Apache::response::make_horizontal_bubbles:
+
+ my @foil_texts = &get_foil_texts($whichfoils);
+ $result .= &Apache::caparesponse::make_horizontal_latex_bubbles(
+ $whichfoils, \@foil_texts, '$\bigcirc$');
+
+ } else {
+
+ $result .= '\vskip 2mm \noindent';
+
+ # This section puts out the prefix that tells the user
+ # (if necessary) to only choose one bubble in the next n lines
+ # for problems with more than one line worth of bubbles in the grid sheet:
+
+ my $numitems = scalar( @{$whichfoils} );
+ $numlines = int( $numitems / $bubbles_per_line );
+ if ( ( $numitems % $bubbles_per_line ) != 0 ) {
+ $numlines++;
+ }
+ if ( $numlines < 1 ) {
+ $numlines = 1;
+ }
+ if ( $numlines > 1 ) {
+ my $linetext;
+ for ( my $i = 0 ; $i < $numlines ; $i++ ) {
+ $linetext .= $Apache::lonxml::counter + $i . ', ';
+ }
+ $linetext =~ s/,\s$//;
+ $result .=
+ '\small {\textbf{'
+ . $linetext . '}} '
+ . ' {\footnotesize '
+ . &mt( '(Bubble once in [_1] lines)', $numlines )
+ . '} \hspace*{\fill} \\\\';
+ }
+ else {
+ $result .= '\textbf{' . $Apache::lonxml::counter . '}.'.
+ '\hspace*{2 mm}';
+ }
+
+ # Now output the bubbles themselves:
+
+ foreach my $name (@{$whichfoils}) {
+ if ( $bubble_number >= $bubbles_per_line ) {
+ $line++;
+ $i = 0;
+ $bubble_number = 0;
+ }
+ my $identifier;
+ if ( $numlines > 1 ) {
+ $identifier = $Apache::lonxml::counter + $line;
+ }
+ my $preindent;
+ if ($bubble_number > 0) {
+ my $offset = 5;
+ if ($Apache::lonxml::counter) {
+ if ($identifier) {
+ $offset += 2 * (length($identifier)-1);
+ } else {
+ $offset += 2 * (length($Apache::lonxml::counter)-1);
+ }
+ }
+ $preindent = '\hspace*{'.$offset.' mm}';
+ }
+ my $foiltext = $Apache::response::foilgroup{$name . '.text'};
+ $foiltext =~ s/\\noindent//; # forgive me for I have sinned..
+ $result .= '{\small \textbf{'
+ . $identifier .$preindent
+ . $alphabet[$i]
+ . '}}$\bigcirc$'
+ . $foiltext
+ . '\\\\'; #' stupid emacs -- it thinks it needs that apostrophe to close the quote
+
+ $i++;
+ $bubble_number++;
+ }
+
+ }
+
+ return $result;
+
+}
+
+##
+# Display latex when exam mode is not on.
+#
+# @param $whichfoils - The foils to display
+# @param $direction - Display direction ('horizontal' is what matters to us).
+# @param $venv - Vertical env. to use for vertical rendering.
+# @param $vend - End the vertical environment being used.
+#
+# @return string
+# @retval - The LaTeX rendering of the resource.'
+#
+sub display_latex {
+ my ($whichfoils, $direction, $venv) = @_;
+ my $result;
+
+ # how we render depends on the direction.
+ # Vertical is some kind of list environment determined by vbegin/vend.
+ # Horizontal is a table that is generated by
+ # Apache::caparesponse::make_horizontal_latex_bubbles with an empty string
+ # for the actual bubble text.
+
+ if ($direction eq 'horizontal') {
+ my @foil_texts = &get_foil_texts($whichfoils);
+ $result .= &Apache::caparesponse::make_horizontal_latex_bubbles(
+ $whichfoils, \@foil_texts, '');
+ } else {
+ $result .= "\\begin{$venv}";
+ foreach my $name (@{$whichfoils}) {
+ $result .= '\vspace*{-2 mm}\item '
+ . $Apache::response::foilgroup{ $name . '.text' };
}
+
+ $result .= "\\end{$venv}";
+ }
+ return $result;
+}
+
+
+##
+# Render foils for a PDF form. This is a variant of tex rednering that provides
+# sufficient markup that the final PDF is a form that can be filled in online,
+# or offline.
+#
+# @param $whichfoils - References an array of foils to display in the order in which
+# they should be displayed.
+# @param $direction - Rendering direction. 'horiztonal' means inputs are laid out
+# horizontally otherwise they are stacked vertically.
+# @param $venv - Vertical environment in which to wrap the foils.
+#
+# @return string
+# @retval String containing the rendering of the resource.
+#
+# TODO: Take into account direction!!!
+#
+sub display_pdf_form {
+ my ($whichfoils, $direction, $venv) = @_;
+ my $temp = 0;
+ my $result;
+
+ $result .= "\\begin{$venv}";
+ foreach my $name ( @{$whichfoils} ) {
+
+ my $fieldname =
+ $env{'request.symb'}
+ . '&part_'
+ . $Apache::inputtags::part
+ . '&radiobuttonresponse'
+ . '&HWVAL_'
+ . $Apache::inputtags::response['-1'];
+ $result .= '\item[{'
+ . &Apache::lonxml::print_pdf_radiobutton( $fieldname,
+ $temp )
+ . '}]'
+ . $Apache::response::foilgroup{ $name . '.text' }
+ . "\n";
+
+ $temp++;
}
- &Apache::lonxml::debug("Answer wants $answer");
- my $truename=$truelist[$whichtrue];
- my $dosplice=1;
- if ($notrue && $Apache::lonhomework::type ne 'survey') {
- $dosplice=0;
- &Apache::lonxml::error("There are no true statements available.<br />");
- }
- #insert the true statement, keeping track of where it wants to be
- if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' && $dosplice) {
- $toplist[$top{$truename}]=$truename;
- $answer=-1;
- foreach my $top (reverse(@toplist)) {
- if ($top) { $answer++;}
- if ($top eq $truename) { last; }
- }
- $dosplice=0;
- } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom' && $dosplice) {
- $bottomlist[$bottom{$truename}]=$truename;
- $answer=-1;
- foreach my $bot (@bottomlist) {
- if ($bot) { $answer++;}
- if ($bot eq $truename) { last; }
- }
- $answer+=$topcount+$#whichfalse+1;
- $dosplice=0;
- } else {
- if ($topcount>0 || $bottomcount>0) {
- $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
- + $topcount;
- }
- }
- &Apache::lonxml::debug("Answer now wants $answer");
- #add the top items to the top, bottom items to the bottom
- for (my $i=0;$i<=$#toplist;$i++) {
- if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
- }
- for (my $i=0;$i<=$#bottomlist;$i++) {
- if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
- }
- #if the true statement is randomized insert it into the list
- if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
- }
- &Apache::lonxml::debug("Answer is $answer");
- return ($answer,@whichfalse);
+ $result .= "\\end{$venv}";
+
+ return $result;
}
+
+##
+# Display selected foils: This is really just a dispatchter to appropriate renderers
+#
+# @param $target - Target (e.g. 'tex'...).
+# @param $answer - True if answers should be shown.
+# @param $whichfoils - Array of foil selectors that indicate which foils shouild be
+# rendered, in rendering order.
+# @param $direction- Rendering direction ('horizontal' is the one we look for,
+# otherwise foils are rendered one per line vertically.
+# @param $bubbles_per_line - number of exam bubbles per line.
+#
+# @return string
+# @retval The rendered problem.
+
sub displayfoils {
- my ($target,$max,$randomize)=@_;
- my $result;
+ my ($target,$answer,$whichfoils,$direction, $bubbles_per_line)=@_;
+ my $result;
- my ($answer,@whichfoils)=&whichfoils($max,$randomize);
- my $part=$Apache::inputtags::part;
- my $solved=$Apache::lonhomework::history{"resource.$part.solved"};
- if ( ($target ne 'tex') &&
- &Apache::response::show_answer() ) {
- foreach my $name (@whichfoils) {
- if ($target ne 'tex') {
- $result.="<br />";
- } else {
- $result.='\item \vskip -2 mm ';
- }
- if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: \textbf{';}
- } else {
- $result.='Incorrect:';
- }
- if ($target ne 'tex') {
- $result.=$Apache::response::foilgroup{$name.'.text'}."</input>\n";
- } else {
- $result.=$Apache::response::foilgroup{$name.'.text'};
- }
- if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
- if ($target ne 'tex') { $result.='</b>';} else {$result.='}';}
- }
- }
- } else {
- my @alphabet = ('A'..'Z');
- my $i = 0;
- my $temp=0;
- my $id=$Apache::inputtags::response['-1'];
- my $part=$Apache::inputtags::part;
- my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
- my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
- foreach my $name (@whichfoils) {
- if ($target ne 'tex') {
- $result.="<br /><input type=\"radio\" name=\"HWVAL_$Apache::inputtags::response['-1']\" value=\"$temp\" ";
- if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
- $result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
- } else {
- if ($Apache::lonhomework::type eq 'exam') {
- $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\'; #' stupid emacs
- $i++;
- } else {
- $result .= '\vspace*{-2 mm}\item '.$Apache::response::foilgroup{$name.'.text'};
- }
- }
- $temp++;
- }
- }
- if ($target ne 'tex') { $result.="<br />"; } else { $result.='\vskip 0 mm '; }
- return $result;
+
+ my $part = $Apache::inputtags::part;
+ my $solved = $Apache::lonhomework::history{"resource.$part.solved"};
+
+ # Show answers html.
+
+ if ( ( $target ne 'tex' )
+ && &Apache::response::show_answer() )
+ {
+
+ $result = &display_foils_html(
+ $whichfoils, $target, $direction, $part, 1);
+
+ # other html
+ } elsif ($target ne 'tex') {
+ $result = &display_foils_html($whichfoils, $target, $direction, $part,
+ 0, 0);
+
+ # LaTeX rendering:
+ } else {
+
+
+ my $id = $Apache::inputtags::response['-1'];
+ my $part = $Apache::inputtags::part;
+ my $numlines;
+
+ # Decide how to bracket the list of foils:
+
+ my $vertical_env = &latex_vertical_environment();
+
+ # Rendering for latex exams.
+
+ if ( ( $Apache::lonhomework::type eq 'exam' ) )
+ {
+ $result .= &display_latex_exam(
+ $whichfoils, $bubbles_per_line, $direction, $vertical_env);
+
+ $result .= '\vskip 0mm ';
+
+ } else {
+
+ # Different rendering for PDF form than for a
+ # 'regular' answer direction is honored in both of those
+ #
+
+ if ( ($env{'form.pdfFormFields'} eq 'yes')
+ && ($Apache::inputtags::status[-1] eq 'CAN_ANSWER'))
+ {
+ $result .= &display_pdf_form($whichfoils, $direction, $vertical_env);
+ } else {
+ $result .= &display_latex($whichfoils, $direction, $vertical_env );
+ }
+ $result .= '\vskip 0 mm ';
+
+ }
+ }
+ return $result;
}
sub displayallanswers {
- my @names = @{ $Apache::response::foilgroup{'names'} };
-
+ my @names;
+ if ( $Apache::response::foilgroup{'names'} ) {
+ @names= @{ $Apache::response::foilgroup{'names'} };
+ }
my $result=&Apache::response::answer_header('radiobuttonresponse');
foreach my $name (@names) {
$result.=&Apache::response::answer_part('radiobuttonresponse',
@@ -448,116 +1253,224 @@ sub displayallanswers {
}
sub displayanswers {
- my ($max,$randomize)=@_;
- my ($answer,@whichopt) = &whichfoils($max,$randomize);
- my $result=&Apache::response::answer_header('radiobuttonresponse');
- foreach my $name (@whichopt) {
- $result.=&Apache::response::answer_part('radiobuttonresponse',
- $Apache::response::foilgroup{$name.'.value'})
- }
- $result.=&Apache::response::answer_footer('radiobuttonresponse');
- return $result;
+ my ($answer, $whichopt, $bubbles_per_line)=@_;
+ my $result;
+
+ if ($Apache::lonhomework::type eq 'exam') {
+ my $line = int($answer/$bubbles_per_line);
+ my $correct = ('A'..'Z')[$answer%$bubbles_per_line];
+ $result .= &Apache::response::answer_header('radiobuttonresponse',
+ $line);
+ $result .= &Apache::response::answer_part('radiobuttonresponse',
+ $correct);
+ } else {
+ $result .= &Apache::response::answer_header('radiobuttonresponse');
+ }
+ foreach my $name (@{ $whichopt }) {
+ $result.=&Apache::response::answer_part('radiobuttonresponse',
+ $Apache::response::foilgroup{$name.'.value'});
+ }
+ $result.=&Apache::response::answer_footer('radiobuttonresponse');
+ return $result;
}
sub start_conceptgroup {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- $Apache::radiobuttonresponse::conceptgroup=1;
- %Apache::response::conceptgroup=();
- my $result;
- if ($target eq 'edit') {
- $result.=&Apache::edit::tag_start($target,$token);
- $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
- &Apache::edit::end_row().&Apache::edit::start_spanning_row();
- } elsif ($target eq 'modified') {
- my $constructtag=&Apache::edit::get_new_args($token,$parstack,
- $safeeval,'concept');
- if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
- }
- return $result;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ $Apache::radiobuttonresponse::conceptgroup=1;
+ %Apache::response::conceptgroup=();
+ my $result;
+ if ($target eq 'edit') {
+ $result.=&Apache::edit::tag_start($target,$token);
+ $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
+ &Apache::edit::end_row().&Apache::edit::start_spanning_row();
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args($token,$parstack,
+ $safeeval,'concept');
+ if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+ }
+ return $result;
}
sub end_conceptgroup {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- $Apache::radiobuttonresponse::conceptgroup=0;
- my $result;
- if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
- $target eq 'tex' || $target eq 'analyze') {
- &Apache::response::pick_foil_for_concept($target,
- ['value','text','location'],
- \%Apache::hint::radiobutton,
- $parstack,$safeeval);
- } elsif ($target eq 'edit') {
- $result=&Apache::edit::end_table();
- }
- return $result;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ $Apache::radiobuttonresponse::conceptgroup=0;
+ my $result;
+ if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
+ $target eq 'tex' || $target eq 'analyze') {
+ &Apache::response::pick_foil_for_concept($target,
+ ['value','text','location'],
+ \%Apache::hint::radiobutton,
+ $parstack,$safeeval);
+ } elsif ($target eq 'edit') {
+ $result=&Apache::edit::end_table();
+ }
+ return $result;
}
sub insert_conceptgroup {
- my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
- return $result;
+ my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
+ return $result;
}
sub start_foil {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $result='';
- if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
- &Apache::lonxml::startredirection;
- } elsif ($target eq 'edit') {
- $result=&Apache::edit::tag_start($target,$token);
- $result.=&Apache::edit::text_arg('Name:','name',$token);
- $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
- ['unused','true','false'],$token);
- my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
- $safeeval,'-3');
- if ($randomize ne 'no') {
- $result.=&Apache::edit::select_arg('Location:','location',
- ['random','top','bottom'],$token);
- }
- $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
- } elsif ($target eq 'modified') {
- my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
- 'value','name','location');
- if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
- }
- return $result;
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result='';
+ if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
+ &Apache::lonxml::startredirection;
+ if ($target eq 'analyze') {
+ &Apache::response::check_if_computed($token,$parstack,$safeeval,'value');
+ }
+ } elsif ($target eq 'edit') {
+ $result=&Apache::edit::tag_start($target,$token);
+ $result.=&Apache::edit::text_arg('Name:','name',$token);
+ $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
+ ['unused','true','false'],
+ $token);
+ my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
+ $safeeval,'-3');
+ if ($randomize ne 'no') {
+ $result.=&Apache::edit::select_arg('Location:','location',
+ ['random','top','bottom'],$token);
+ }
+ $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
+ } elsif ($target eq 'modified') {
+ my $constructtag=&Apache::edit::get_new_args($token,$parstack,
+ $safeeval,'value','name',
+ 'location');
+ if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+ }
+ return $result;
}
sub end_foil {
- my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $text='';
- if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
- $text=&Apache::lonxml::endredirection;
- }
- if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex' || $target eq 'analyze') {
- my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
- if ($value ne 'unused') {
- my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
- my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
- if (!$name) { $name=$Apache::lonxml::curdepth; }
- if ( $Apache::radiobuttonresponse::conceptgroup
- && !&Apache::response::showallfoils() ) {
- push @{ $Apache::response::conceptgroup{'names'} }, $name;
- $Apache::response::conceptgroup{"$name.value"} = $value;
- $Apache::response::conceptgroup{"$name.text"} = $text;
- $Apache::response::conceptgroup{"$name.location"} = $location;
- } else {
- push @{ $Apache::response::foilgroup{'names'} }, $name;
- $Apache::response::foilgroup{"$name.value"} = $value;
- $Apache::response::foilgroup{"$name.text"} = $text;
- $Apache::response::foilgroup{"$name.location"} = $location;
- }
+ my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $text='';
+ if ($target eq 'web' || $target eq 'tex' || $target eq 'analyze') {
+ $text=&Apache::lonxml::endredirection;
+ }
+ if ($target eq 'web' || $target eq 'grade' || $target eq 'answer'
+ || $target eq 'tex' || $target eq 'analyze') {
+ my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
+ if ($value ne 'unused') {
+ my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
+ if ($name eq "") {
+ &Apache::lonxml::warning(&mt('Foils without names exist. This can cause problems to malfunction.'));
+ $name=$Apache::lonxml::curdepth;
+ }
+ if (defined($Apache::response::foilnames{$name})) {
+ &Apache::lonxml::error(&mt('Foil name [_1] appears more than once. Foil names need to be unique.','<b><tt>'.$name.'</tt></b>'));
+ }
+ $Apache::response::foilnames{$name}++;
+ my $location =&Apache::lonxml::get_param('location',$parstack,
+ $safeeval);
+ if ( $Apache::radiobuttonresponse::conceptgroup
+ && !&Apache::response::showallfoils() ) {
+ push @{ $Apache::response::conceptgroup{'names'} }, $name;
+ $Apache::response::conceptgroup{"$name.value"} = $value;
+ $Apache::response::conceptgroup{"$name.text"} = $text;
+ $Apache::response::conceptgroup{"$name.location"} = $location;
+ } else {
+ push @{ $Apache::response::foilgroup{'names'} }, $name;
+ $Apache::response::foilgroup{"$name.value"} = $value;
+ $Apache::response::foilgroup{"$name.text"} = $text;
+ $Apache::response::foilgroup{"$name.location"} = $location;
+ }
+ }
}
- }
- return '';
+ return '';
}
sub insert_foil {
- return '
+ return '
<foil name="" value="unused">
<startouttext />
<endouttext />
</foil>';
}
+
1;
__END__
+
+
+
+=head1 NAME
+
+Apache::radiobuttonresponse
+
+=head1 SYNOPSIS
+
+Handles multiple-choice style responses.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 SUBROUTINES
+
+=over
+
+=item start_radiobuttonresponse()
+
+=item bubble_line_count()
+
+=item end_radiobuttonresponse()
+
+=item start_foilgroup()
+
+=item storesurvey()
+
+=item grade_response()
+
+=item end_foilgroup()
+
+=item getfoilcounts()
+
+=item format_prior_answer()
+
+=item displayallfoils()
+
+=item &whichfoils($max,$randomize)
+
+Randomizes the list of foils.
+Respects
+ - each foils desire to be randomized
+ - the existance of Concept groups of foils (select 1 foil from each)
+ - and selects a single correct statement from all possilble true statments
+ - and limits it to a toal of $max foils
+
+WARNING: this routine uses the random number generator, it should only
+be called once per target, otherwise it can cause randomness changes in
+homework problems.
+
+Arguments
+ $max - maximum number of foils to select (including the true one)
+ (so a max of 5 is: 1 true, 4 false)
+
+ $randomize - whether to randomize the listing of foils, by default
+ will randomize, only if randomize is 'no' will it not
+
+Returns
+ $answer - location in the array of the correct answer
+ @foils - array of foil names in to display order
+
+=item displayfoils()
+
+=item displayallanswers()
+
+=item displayanswers()
+
+=item start_conceptgroup()
+
+=item end_conceptgroup()
+
+=item insert_conceptgroup()
+
+=item start_foil()
+
+=item end_foil()
+
+=item insert_foil()
+
+=back
+
+=cut