--- loncom/homework/edit.pm 2001/05/15 20:48:43 1.7
+++ loncom/homework/edit.pm 2011/02/06 18:43:10 1.134
@@ -1,149 +1,1147 @@
# The LearningOnline Network with CAPA
# edit mode helpers
-# 3/20 Guy
+#
+# $Id: edit.pm,v 1.134 2011/02/06 18:43:10 www Exp $
+#
+# Copyright Michigan State University Board of Trustees
+#
+# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
+#
+# LON-CAPA is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# LON-CAPA is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# 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
+#
+# /home/httpd/html/adm/gpl.txt
+#
+# http://www.lon-capa.org/
+#
+
+=pod
+
+=head1 NAME
+
+Apache::edit - edit mode helpers
+
+=head1 SYNOPSIS
+
+Invoked by many homework and xml related modules.
+
+ &Apache::edit::SUBROUTINENAME(ARGUMENTS);
+
+=head1 INTRODUCTION
+
+This module outputs HTML syntax helpful for the rendering of edit
+mode interfaces.
+
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
+
+=head1 SUBROUTINES
+
+=over 4
+
+=item initialize_edit()
+
+initialize edit (set colordepth to zero)
+
+=item tag_start($target,$token,$description)
+
+provide deletion and insertion lists
+for the manipulation of a start tag; return a scalar string
+
+=item tag_end($target,$token,$description)
+
+ending syntax corresponding to
+&tag_start. return a scalar string.
+
+=item start_table($token)
+
+start table; update colordepth; return scalar string.
+
+=item end_table()
+
+reduce color depth; end table; return scalar string
+
+=item start_spanning_row()
+
+start a new table row spanning the 'edit' environment.
+
+=item start_row()
+
+start a new table row and element.
+
+=item end_row()
+
+end current table element and row.
+
+=item movebuttons($target,$token)
+
+move-up and move-down buttons; return scalar string
+
+=item deletelist($target,$token)
+
+provide a yes option in an HTML select element; return scalar string
+
+=item handle_delete($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,
+$style)
+
+respond to a user delete request by passing relevant stack
+and array information to various rendering functions; return a scalar string
+
+=item get_insert_list($token)
+
+provide an insertion list based on possibilities from lonxml; return a scalar string
+
+=item insertlist($target,$token)
+
+api that uses get_insert_list; return a scalar string
+
+=item handleinsert($token)
+
+provide an insertion list based on possibilities from lonxml; return a scalar string
+
+=item get_insert_list($token)
+
+provide an insertion list based on possibilities from lonxml; return a scalar string
+
+=item browse($elementname)
+
+provide a link which will open up the filesystem browser (lonindexer) and, once a file is selected, place the result in the form element $elementname.
+
+=item search($elementname)
+
+provide a link which will open up the filesystem searcher (lonsearchcat) and, once a file is selected, place the result in the form element $elementname.
+
+=item editline(tag,data,description,size)
+
+Provide a <input type="text" ../> for single-line text entry. This is to be used for text enclosed by tags, not arguements/parameters associated with a tag.
+
+=back
+
+=cut
+
package Apache::edit;
use strict;
use Apache::lonnet;
+use HTML::Entities();
+use Apache::lonlocal;
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+
+
+# Global Vars
+# default list of colors to use in editing
+@Apache::edit::colorlist=('#ffffff','#ff0000','#00ff00','#0000ff','#0ff000','#000ff0','#f0000f');
+# depth of nesting of edit
+$Apache::edit::colordepth=0;
+@Apache::edit::inserttag=();
+# image-type responses: active background image and curdepth at definition
+$Apache::edit::bgimgsrc='';
+$Apache::edit::bgimgsrccurdepth='';
+
+sub initialize_edit {
+ $Apache::edit::colordepth=0;
+ @Apache::edit::inserttag=();
+}
sub tag_start {
- my ($target,$token) = @_;
- my $result='';
- if ($target eq "edit") {
- my $tag=$token->[1];
-# my $color = sprintf("#%06lx",(hex("ffffff")) >> scalar(split(/_/,$Apache::lonxml::curdepth)));
- my $color = sprintf("#%02lxffff",33* scalar(split(/_/,$Apache::lonxml::curdepth)));
- $result.="<table bgcolor=\"$color\" width=\"100%\" border=\"2\"><tr><td><$tag></td>
-<td>Delete:
-<select name=\"delete_$Apache::lonxml::curdepth\">
-<option>Nothing</option>
-<option>Tag</option>
-<option>Subtags</option>
-</select></td>
-<td>".
- &insertlist($token,$target).
- "</td>
-</tr><tr><td colspan=\"3\">\n";
- }
- return $result;
+ my ($target,$token,$description) = @_;
+ my $result='';
+ if ($target eq "edit") {
+ my $tag=$token->[1];
+ if (!$description) {
+ $description=&Apache::lonxml::description($token);
+ if (!$description) { $description="<$tag>"; }
+ }
+ $result.= &start_table($token)."<tr><td>$description</td>
+ <td>".&mt('Delete?').' '.
+ &deletelist($target,$token)
+ ."</td>
+ <td>".
+ &insertlist($target,$token);
+#<td>".
+# &movebuttons($target,$token).
+# "</tr><tr><td colspan=\"3\">\n";
+ my @help = Apache::lonxml::helpinfo($token);
+ if ($help[0]) {
+ $result .= '</td><td align="right" valign="top">' .
+ Apache::loncommon::help_open_topic(@help);
+ } else { $result .= "</td><td> "; }
+ $result .= &end_row().&start_spanning_row();
+ }
+ return $result;
}
sub tag_end {
- my ($target,$token) = @_;
- my $result='';
- if ($target eq 'edit') {
- my $tag=$token->[1];
- $result.="</td></tr><tr><td></$tag></td></tr></table>\n";
- }
- return $result;
+ my ($target,$token,$description) = @_;
+ my $result='';
+ if ($target eq 'edit') {
+ $result.="</td></tr>".&end_table()."\n";
+ }
+ return $result;
+}
+
+sub start_table {
+ my ($token)=@_;
+ my $tag = &Apache::lonxml::get_tag($token);
+
+ my $color = $Apache::lonxml::insertlist{"$tag.color"};
+ &Apache::lonxml::debug(" $tag -- $color");
+ if (!defined($color)) {
+ $color = $Apache::edit::colorlist[$Apache::edit::colordepth];
+ }
+ $Apache::edit::colordepth++;
+ push(@Apache::edit::inserttag,$token->[1]);
+ my $result='<div align="right">';
+ $result.='<table bgcolor="'.$color.'" width="97%" border="0" cellspacing="3" cellpadding="2">';
+ return $result;
+}
+
+sub end_table {
+ $Apache::edit::colordepth--;
+ my $result='</table></div>';
+ $result.='<div align="left"><table><tr><td>';
+
+ my ($tagname,$closingtag);
+ if (defined($Apache::edit::inserttag[-2])) {
+ $tagname=$Apache::edit::inserttag[-2];
+ } else {
+ if ($Apache::lonhomework::parsing_a_task) {
+ $tagname='Task';
+ } else {
+ $tagname='problem';
+ }
+ }
+ if (defined($Apache::edit::inserttag[-1])) {
+ $closingtag=$Apache::edit::inserttag[-1];
+ }
+ $result.=&innerinsertlist('edit',$tagname,$closingtag).
+ "</td></tr></table></div>";
+ my $last = pop(@Apache::edit::inserttag);
+ return $result;
+}
+
+sub start_spanning_row { return '<tr><td colspan="5" bgcolor="#F0F0F0">';}
+sub start_row { return '<tr><td bgcolor="#DDDDDD">'; }
+sub end_row { return '</td></tr>'; }
+
+sub movebuttons {
+ my ($target,$token) = @_;
+ my $result='<input type="submit" name="moveup.'.
+ $Apache::lonxml::curdepth.'" value="Move Up" />';
+ $result.='<input type="submit" name="movedown.'.
+ $Apache::lonxml::curdepth.'" value="Move Down" />';
+ return $result;
+}
+
+sub deletelist {
+ my ($target,$token) = @_;
+ my $result = "<select name=\"delete_$Apache::lonxml::curdepth\">
+<option></option>
+<option>".&mt('yes')."</option>
+</select>";
+ return $result;
+}
+
+sub handle_delete {
+ if (!$env{"form.delete_$Apache::lonxml::curdepth"}) { return ''; }
+ my ($space,$target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
+ my $result=0;
+ if ($space) {
+ my $sub1="$space\:\:delete_$token->[1]";
+ {
+ no strict 'refs';
+ if (defined &$sub1) {
+ $result=&$sub1($target,$token,$tagstack,$parstack,$parser,$safeeval,$style);
+ }
+ }
+ }
+ if (!$result) {
+ my $endtag='/'.$token->[1];
+ my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser,$style);
+ $$parser['-1']->get_token();
+ &Apache::lonxml::debug("Deleting :$bodytext: for $token->[1]");
+ &Apache::lonxml::end_tag($tagstack,$parstack,$token);
+ }
+ return 1;
}
sub get_insert_list {
- my ($token) = @_;
- my $result='';
- my @tagnums= ();
- #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
- if ($Apache::lonxml::insertlist{"$token->[1].which"}) {
- &Apache::lonxml::debug("Adding1 $token->[1].which");
- push (@tagnums, @{ $Apache::lonxml::insertlist{"$token->[1].which"} });
- }
- foreach my $namespace (@Apache::lonxml::namespace) {
- if ($Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"}) {
- &Apache::lonxml::debug("Adding2 $namespace".'::'."$token->[1].which");
- push (@tagnums, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$token->[1].which"} });
- }
- }
- if (@tagnums) {
- foreach my $tagnum (@tagnums) {
- $result.='<option value="'.$tagnum.'">'.$Apache::lonxml::insertlist{"$tagnum.description"}."</option>\n";
- }
- if ($result) { $result='<option selected="on"></option>'.$result; }
- }
- return $result;
+ my ($tagname) = @_;
+ my $result='';
+ my @tags= ();
+ #&Apache::lonxml::debug("keys ".join("\n",sort(keys(%Apache::lonxml::insertlist))));
+ if ($Apache::lonxml::insertlist{"$tagname.which"}) {
+ push (@tags, @{ $Apache::lonxml::insertlist{"$tagname.which"} });
+ }
+ foreach my $namespace (@Apache::lonxml::namespace) {
+ if ($Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"}) {
+ push (@tags, @{ $Apache::lonxml::insertlist{"$namespace".'::'."$tagname.which"} });
+ }
+ }
+ if (@tags) {
+ my %options;
+ foreach my $tag (@tags) {
+ my $descrip=$Apache::lonxml::insertlist{"$tag.description"};
+ my $tagnum =$Apache::lonxml::insertlist{"$tag.num"};
+ $options{$descrip} ="<option value=\"$tagnum\">".
+ $descrip."</option>\n";
+ }
+ foreach my $option (sort(keys(%options))) {$result.=$options{$option};}
+ if ($result) { $result='<option selected="selected"></option>'.$result; }
+ }
+ return $result;
}
sub insertlist {
- my ($token,$target) = @_;
- my $result;
- if ($target eq 'edit') {
- my $optionlist= &get_insert_list($token);
- if ($optionlist) {
- $result = "Insert:
-<select name=\"insert_$Apache::lonxml::curdepth\">
-$optionlist
-</select>"
+ my ($target,$token) = @_;
+ return &innerinsertlist($target,$token->[1]);
+}
+
+sub innerinsertlist {
+ my ($target,$tagname,$closingtag) = @_;
+ my $result;
+ my $after='';
+ if ($closingtag) {
+ $after='_after_'.$closingtag;
+ }
+ if ($target eq 'edit') {
+ my $optionlist= &get_insert_list($tagname);
+ if ($optionlist) {
+ $result = &mt('Insert:')."
+ <select name=\"insert$after\_$Apache::lonxml::curdepth\">
+ $optionlist
+ </select>"
+ } else {
+ $result=" ";
+ }
}
- }
- return $result;
+ return $result;
}
sub handle_insert {
- if (!$ENV{"form.insert_$Apache::lonxml::curdepth"}) { return ''; }
- my $result;
- my $tagnum = $ENV{"form.insert_$Apache::lonxml::curdepth"};
- my $func=$Apache::lonxml::insertlist{"$tagnum.function"};
- if ($func eq 'default') {
- my $newtag=$Apache::lonxml::insertlist{"$tagnum.tag"};
- my $namespace;
- if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
- $result.="\n<$newtag>\n</$newtag>";
- } else {
- {
- no strict 'refs';
- $result.=&$func();
+ if ($env{"form.insert_$Apache::lonxml::curdepth"} eq '') { return ''; }
+ my $tagnum = $env{"form.insert_$Apache::lonxml::curdepth"};
+ return &do_insert($tagnum);
+}
+
+sub handle_insertafter {
+ my $tagname=shift;
+ if ($env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"} eq '') {
+ return '';
}
- }
- return $result;
+ my $tagnum =$env{"form.insert_after_$tagname\_$Apache::lonxml::curdepth"};
+ return &do_insert($tagnum,1);
+}
+
+sub do_insert {
+ my ($tagnum,$after) = @_;
+ my $result;
+
+ my $newtag = $Apache::lonxml::insertlist{"$tagnum.tag"};
+ my $func = $Apache::lonxml::insertlist{"$newtag.function"};
+ if ($func eq 'default') {
+ my $namespace;
+ if ($newtag =~ /::/) { ($namespace,$newtag) = split(/::/,$newtag); }
+ my $depth = scalar(@Apache::lonxml::depthcounter);
+ $depth -- if ($after);
+ my $inset = "\t"x$depth;
+ $result.="\n$inset<$newtag></$newtag>";
+ } else {
+ if (defined(&$func)) {
+ {
+ no strict 'refs';
+ $result.=&$func();
+ }
+ } else {
+ &Apache::lonxml::error("Unable to insert tag $newtag, $func was not defined. ($tagnum)");
+ }
+ }
+ return $result;
+}
+
+sub insert_img {
+ return '
+ <img />';
+}
+
+sub insert_responseparam {
+ return '
+ <responseparam />';
+}
+
+sub insert_parameter {
+ return '
+ <parameter />';
+}
+
+sub insert_formularesponse {
+ return '
+<formularesponse answer="" samples="">
+ <responseparam description="Numerical Tolerance" type="tolerance" default="0.00001" name="tol" />
+ <textline size="25"/>
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</formularesponse>';
+}
+
+sub insert_functionplotresponse {
+ return '
+<functionplotresponse>
+<functionplotelements>
+<spline />
+</functionplotelements>
+<functionplotruleset>
+<functionplotrule />
+</functionplotruleset>
+</functionplotresponse>';
+}
+
+sub insert_spline {
+ return '
+<spline />';
+}
+
+sub insert_backgroundplot {
+ return '
+<backgroundplot />';
+}
+
+sub insert_functionplotrule {
+ return '
+<functionplotrule />';
+}
+
+sub insert_functionplotruleset {
+ return '
+<functionplotruleset>
+<functionplotrule />
+</functionplotruleset>';
+}
+
+sub insert_functionplotelements {
+ return '
+<functionplotelements>
+<spline />
+</functionplotelements>';
+}
+
+sub insert_numericalresponse {
+ return '
+<numericalresponse answer="">
+<responseparam type="tolerance" default="5%" name="tol" description="Numerical Tolerance" />
+<responseparam name="sig" type="int_range,0-16" default="0,15" description="Significant Figures" />
+ <textline />
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</numericalresponse>';
+}
+
+sub insert_customresponse {
+ return '
+<customresponse>
+ <answer type="loncapa/perl">
+ </answer>
+ <textline />
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</customresponse>';
+}
+
+sub insert_customresponse_answer {
+ return '
+ <answer type="loncapa/perl">
+ </answer>
+';
+}
+
+sub insert_customhint {
+ return '
+ <customhint>
+ <answer type="loncapa/perl">
+ </answer>
+ </customhint>';
+}
+
+sub insert_customhint_answer {
+ return '
+ <answer type="loncapa/perl">
+ </answer>
+';
+}
+
+sub insert_mathresponse {
+ return '
+<mathresponse>
+ <answer>
+ </answer>
+ <textline />
+ <hintgroup>
+ <startouttext />
+ <endouttext />
+ </hintgroup>
+</mathresponse>';
+}
+
+sub insert_mathresponse_answer {
+ return '
+ <answer>
+ </answer>
+';
+}
+
+sub insert_mathhint {
+ return '
+ <mathhint>
+ <answer>
+ </answer>
+ </mathhint>';
+}
+
+sub insert_mathhint_answer {
+ return '
+ <answer>
+ </answer>
+';
+}
+
+sub insert_stringresponse {
+ return '
+<stringresponse answer="" type="">
+ <textline />
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</stringresponse>';
+}
+
+sub insert_essayresponse {
+ return '
+<essayresponse>
+ <textfield></textfield>
+</essayresponse>';
+}
+
+sub insert_imageresponse {
+ return '
+<imageresponse max="1">
+ <foilgroup>
+ <foil>
+ </foil>
+ </foilgroup>
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</imageresponse>';
}
sub insert_optionresponse {
- return '
+ return '
<optionresponse max="10">
<foilgroup options="">
+ <foil>
+ <startouttext /><endouttext />
+ </foil>
</foilgroup>
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
</optionresponse>';
}
+sub insert_organicresponse {
+ return '
+<organicresponse>
+ <textline />
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</organicresponse>';
+}
+
+sub insert_organicstructure {
+ return '
+<organicstructure />
+';
+}
+
+sub insert_radiobuttonresponse {
+ return '
+<radiobuttonresponse max="10">
+ <foilgroup>
+ <foil>
+ <startouttext /><endouttext />
+ </foil>
+ </foilgroup>
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</radiobuttonresponse>';
+}
+
+sub insert_reactionresponse {
+ return '
+<reactionresponse>
+ <textline />
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</reactionresponse>';
+}
+
+sub insert_rankresponse {
+ return '
+<rankresponse max="10">
+ <foilgroup options="">
+ <foil>
+ <startouttext /><endouttext />
+ </foil>
+ </foilgroup>
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</rankresponse>';
+}
+
+sub insert_matchresponse {
+ return '
+<matchresponse max="10">
+ <foilgroup options="">
+ <itemgroup>
+ </itemgroup>
+ <foil>
+ <startouttext /><endouttext />
+ </foil>
+ </foilgroup>
+ <hintgroup>
+ <startouttext /><endouttext />
+ </hintgroup>
+</matchresponse>';
+}
+
+sub insert_startpartmarker { return '<startpartmarker />'; }
+sub insert_endpartmarker { return '<endpartmarker />'; }
+
+sub insert_displayduedate { return '<displayduedate />'; }
+sub insert_displaytitle { return '<displaytitle />'; }
+sub insert_hintpart {
+ return '
+<hintpart on="default">
+ <startouttext/><endouttext />
+</hintpart>';
+}
+
+sub insert_hintgroup {
+ return '
+<hintgroup>
+ <startouttext /><endouttext />
+</hintgroup>';
+}
+
+sub insert_numericalhint {
+ return '
+<numericalhint>
+</numericalhint>';
+}
+
+sub insert_reactionhint {
+ return '
+<reactionhint>
+</reactionhint>';
+}
+
+sub insert_organichint {
+ return '
+<organichint>
+</organichint>';
+}
+
+sub insert_stringhint {
+ return '
+<stringhint>
+</stringhint>';
+}
+
+sub insert_formulahint {
+ return '
+<formulahint>
+</formulahint>';
+}
+
+sub insert_radiobuttonhint {
+ return '
+<radiobuttonhint>
+</radiobuttonhint>';
+}
+
+sub insert_optionhint {
+ return '
+<optionhint>
+</optionhint>';
+}
+
+sub insert_startouttext {
+ return "<startouttext /><endouttext />";
+}
+
+sub insert_script {
+ return "\n<script type=\"loncapa/perl\"></script>";
+}
+
+sub js_change_detection {
+ my $unsaved=&mt("There are unsaved changes");
+ return (<<SCRIPT);
+<script type="text/javascript">
+var clean = true;
+var is_submit = false;
+var still_ask = false;
+function compareForm(event_) {
+ if (!event_ && window.event) {
+ event_ = window.event;
+ }
+ if ((!is_submit || (is_submit && still_ask)) && !clean) {
+ still_ask = false;
+ is_submit = false;
+ event_.returnValue = "$unsaved";
+ return "$unsaved";
+ }
+}
+function unClean() {
+ clean=false;
+}
+window.onbeforeunload = compareForm;
+</script>
+SCRIPT
+}
+
+sub form_change_detection {
+ return ' onsubmit="is_submit=true;" ';
+}
+
+sub element_change_detection {
+ return ' onchange="unClean();" ';
+}
+
+sub submit_ask_anyway {
+ my ($extra_action) = @_;
+ return ' onclick="still_ask=true;'.$extra_action.'" ';
+}
+
+sub submit_dont_ask {
+ my ($extra_action) = @_;
+ return ' onclick="is_submit=true;'.$extra_action.'" ';
+}
+
+
+sub textarea_sizes {
+ my ($data)=@_;
+ my $count=0;
+ my $maxlength=-1;
+ foreach (split ("\n", $$data)) {
+ $count+=int(length($_)/79);
+ $count++;
+ if (length($_) > $maxlength) { $maxlength = length($_); }
+ }
+ my $rows = $count;
+ my $cols = $maxlength;
+ return ($rows,$cols);
+}
+
+sub editline {
+ my ($tag,$data,$description,$size)=@_;
+ $data=&HTML::Entities::encode($data,'<>&"');
+ if ($description) { $description=$description."<br />"; }
+ my $change_code = &element_change_detection();
+ my $result = <<"END";
+$description
+<input type="text" name="homework_edit_$Apache::lonxml::curdepth"
+ value="$data" size="$size" $change_code />
+END
+ return $result;
+}
+
sub editfield {
- my ($tag,$data,$description,$minwidth,$minheight)=@_;
-
- my $count=0;
- my $maxlength=-1;
- map { $count++;
- if (length($_) > $maxlength) { $maxlength = length ($_); }
- } split ("\n", $data);
- if ($maxlength > 80) { $maxlength = 80; }
- if ($maxlength < $minwidth) { $maxlength = $minwidth; }
- if ( $count < $minheight) { $count = $minheight; }
- if ($description) {
- $description="<br />".$description;
- }
- return "$description<br />\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea>\n";
-# return "<br />\n<$tag><br />\n <textarea rows=\"$count\" cols=\"$maxlength\" name=homework_edit_".$Apache::lonxml::curdepth.">$data</textarea><br />\n</$tag><br />\n";
+ my ($tag,$data,$description,$minwidth,$minheight,$usehtmlarea)=@_;
+
+ my ($rows,$cols)=&textarea_sizes(\$data);
+ my $textareaclass;
+
+ if (&Apache::lonhtmlcommon::htmlareabrowser() && $usehtmlarea) {
+ $rows+=7; # make room for HTMLarea
+ $minheight+=7; # make room for HTMLarea
+ $textareaclass = ' class="LC_richDefaultOff"';
+ }
+ if ($cols > 80) { $cols = 80; }
+ if ($cols < $minwidth ) { $cols = $minwidth; }
+ if ($rows < $minheight) { $rows = $minheight; }
+ if ($description) { $description=$description."<br />"; }
+
+ # remove typesetting whitespace from between data and the end tag
+ # to make the edit look prettier
+ $data =~ s/\n?[ \t]*$//;
+
+ return $description."\n".'<textarea style="width:100%" rows="'.$rows.
+ '" cols="'.$cols.'" name="homework_edit_'.
+ $Apache::lonxml::curdepth.'" id="homework_edit_'.
+ $Apache::lonxml::curdepth.'" '.&element_change_detection().
+ $textareaclass.'>'.
+ &HTML::Entities::encode($data,'<>&"').'</textarea>'.
+ ($usehtmlarea?&Apache::lonhtmlcommon::spelllink('lonhomework',
+ 'homework_edit_'.$Apache::lonxml::curdepth):'')."\n";
}
sub modifiedfield {
- my ($token) = @_;
- my $result;
-# foreach my $envkey (sort keys %ENV) {
-# &Apache::lonxml::debug("$envkey ---- $ENV{$envkey}");
-# }
-# &Apache::lonxml::debug("I want homework_edit_$Apache::lonxml::curdepth");
-# &Apache::lonxml::debug($ENV{"form.homework_edit_$Apache::lonxml::curdepth"});
- $result=$ENV{"form.homework_edit_$Apache::lonxml::curdepth"};
- if (defined $token) {
- if (defined $token->[4]) {
- $result=$token->[4].$result;
+ my ($endtag,$parser) = @_;
+ my $result;
+ $result=$env{"form.homework_edit_$Apache::lonxml::curdepth"};
+ my $bodytext=&Apache::lonxml::get_all_text($endtag,$parser);
+ # textareas throw away intial \n
+ if ($bodytext=~/^\n/) {
+ $result="\n".$result;
+ }
+ # if there is typesetting whitespace from between the data and the end tag
+ # restore to keep the source looking pretty
+ if ($bodytext =~ /(\n?[ \t]*)$/) {
+ $result .= $1;
+ }
+ return $result;
+}
+
+# Returns a 1 if the token has been modified and you should rebuild the tag
+# side-effects, will modify the $token if new values are found
+sub get_new_args {
+ my ($token,$parstack,$safeeval,@args)=@_;
+ my $rebuild=0;
+ foreach my $arg (@args) {
+ #just want the string that it was set to
+ my $value=$token->[2]->{$arg};
+ my $element=&html_element_name($arg);
+ my $newvalue=$env{"form.$element"};
+ &Apache::lonxml::debug("for:$arg: cur is :$value: new is :$newvalue:");
+ if (defined($newvalue) && $value ne $newvalue) {
+ if (ref($newvalue) eq 'ARRAY') {
+ $token->[2]->{$arg}=join(',',@$newvalue);
+ } else {
+ $token->[2]->{$arg}=$newvalue;
+ }
+ $rebuild=1;
+ # add new attributes to the of the attribute seq
+ if (!grep { $arg eq $_ } (@{ $token->[3] })) {
+ push(@{ $token->[3] },$arg);
+ }
+ } elsif (!defined($newvalue) && defined($value)) {
+ delete($token->[2]->{$arg});
+ $rebuild=1;
+ }
+ }
+ return $rebuild;
+}
+
+# looks for /> on start tags
+sub rebuild_tag {
+ my ($token) = @_;
+ my $result;
+ if ($token->[0] eq 'S') {
+ $result = '<'.$token->[1];
+ foreach my $attribute (@{ $token->[3] }) {
+ my $value = $token->[2]{$attribute};
+ next if ($value eq '');
+ $value =~s/^\s+|\s+$//g;
+ $value =~s/\"//g;
+ &Apache::lonxml::debug("setting :$attribute: to :$value:");
+ $result.=' '.$attribute.'="'.$value.'"';
+ }
+ if ($token->[4] =~ m:/>$:) {
+ $result.=' />';
+ } else {
+ $result.='>';
+ }
+ } elsif ( $token->[0] eq 'E' ) {
+ $result = '</'.$token->[1].'>';
+ }
+ return $result;
+}
+
+sub html_element_name {
+ my ($name) = @_;
+ return $name.'_'.$Apache::lonxml::curdepth;
+}
+
+sub hidden_arg {
+ my ($name,$token) = @_;
+ my $result;
+ my $arg=$token->[2]{$name};
+ $result='<input name="'.&html_element_name($name).
+ '" type="hidden" value="'.$arg.'" />';
+ return $result;
+}
+
+sub checked_arg {
+ my ($description,$name,$list,$token) = @_;
+ my $result;
+ my $optionlist="";
+ my $allselected=$token->[2]{$name};
+ $result=&mt($description);
+ foreach my $option (@$list) {
+ my ($value,$text);
+ if ( ref($option) eq 'ARRAY') {
+ $value='value="'.$$option[0].'"';
+ $text=$$option[1];
+ $option=$$option[0];
+ } else {
+ $text=$option;
+ $value='value="'.$option.'"';
+ }
+ $result.='<span class="LC_nobreak"><label><input type="checkbox" '.$value.' name="'.
+ &html_element_name($name).'"';
+ foreach my $selected (split(/,/,$allselected)) {
+ if ( $selected eq $option ) {
+ $result.=' checked="checked" ';
+ last;
+ }
+ }
+ $result.=&element_change_detection().' />'.$text.'</label></span>'."\n";
+ }
+ return $result;
+}
+
+sub text_arg {
+ my ($description,$name,$token,$size) = @_;
+ my $result;
+ if (!defined $size) { $size=20; }
+ my $arg=$token->[2]{$name};
+ $result=&mt($description).' <input name="'.&html_element_name($name).
+ '" type="text" value="'.$arg.'" size="'.$size.'" '.
+ &element_change_detection().'/>';
+ return '<span class="LC_nobreak">'.$result.'</span>';
+}
+
+sub select_arg {
+ my ($description,$name,$list,$token) = @_;
+ my $result;
+ my $optionlist="";
+ my $selected=$token->[2]{$name};
+ if (ref($list) eq 'ARRAY') {
+ foreach my $option (@{$list}) {
+ my ($text,$value);
+ if (ref($option) eq 'ARRAY') {
+ $value='value="'.&HTML::Entities::encode($option->[0]).'"';
+ $text=$option->[1];
+ $option=$option->[0];
+ } else {
+ $text=$option;
+ $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
+ }
+ if ( $selected eq $option ) {
+ $optionlist.="<option $value selected=\"selected\">".&mt($text)."</option>\n";
+ } else {
+ $optionlist.="<option $value >".&mt($text)."</option>\n";
+ }
+ }
+ }
+ $result.='<span class="LC_nobreak">'.&mt($description).' <select name="'.
+ &html_element_name($name).'" '.&element_change_detection().' >
+ '.$optionlist.'
+ </select></span>';
+ return $result;
+}
+
+sub select_or_text_arg {
+ my ($description,$name,$list,$token,$size) = @_;
+ my $result;
+ my $optionlist="";
+ my $found=0;
+ my $selected=$token->[2]{$name};
+ if (ref($list) eq 'ARRAY') {
+ foreach my $option (@{$list}) {
+ my ($text,$value);
+ if (ref($option) eq 'ARRAY') {
+ $value='value="'.&HTML::Entities::encode($option->[0]).'"';
+ $text=$option->[1];
+ $option=$option->[0];
+ } else {
+ $text=$option;
+ $value='value="'.&HTML::Entities::encode($option,'\'"&<>').'"';
+ }
+ if ( $selected eq $option ) {
+ $optionlist.="<option $value selected=\"selected\">$text</option>\n";
+ $found=1;
+ } else {
+ $optionlist.="<option $value>$text</option>\n";
+ }
+ }
+ }
+ $optionlist.="<option value=\"TYPEDINVALUE\"".
+ ((!$found)?' selected="selected"':'').
+ ">".&mt('Type-in value')."</option>\n";
+#
+ my $change_code=&element_change_detection();
+ my $element=&html_element_name($name);
+ my $selectelement='select_list_'.$element;
+ my $typeinelement='type_in_'.$element;
+ my $typeinvalue=($found?'':$selected);
+#
+ my $hiddenvalue='this.form.'.$element.'.value';
+ my $selectedindex='this.form.'.$selectelement.'.selectedIndex';
+ my $selectedvalue='this.form.'.$selectelement.
+ '.options['.$selectedindex.'].value';
+ my $typedinvalue='this.form.'.$typeinelement.'.value';
+ my $selecttypeinindex='this.form.'.$selectelement.'.options.length';
+ $description=&mt($description);
+#
+ return (<<ENDSELECTORTYPE);
+<span class="LC_nobreak">
+$description
+ <select name="$selectelement"
+onChange="if ($selectedvalue!='TYPEDINVALUE') { $hiddenvalue=$selectedvalue; $typedinvalue=''; }" >
+$optionlist
+</select>
+<input type="text" size="$size" name="$typeinelement"
+ value="$typeinvalue"
+onChange="$hiddenvalue=$typedinvalue;"
+onFocus="$selectedindex=$selecttypeinindex-1;" />
+<input type="hidden" name="$element" value="$selected" $change_code />
+</span>
+ENDSELECTORTYPE
+}
+
+#----------------------------------------------------- image coordinates
+# single image coordinates, x, y
+sub entercoords {
+ my ($idx,$idy,$mode,$width,$height) = @_;
+ unless ($Apache::edit::bgimgsrc) { return ''; }
+ if ($idx) { $idx.='_'; }
+ if ($idy) { $idy.='_'; }
+ my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
+ my $form = 'lonhomework';
+ my $element;
+ if (! defined($mode) || $mode eq 'attribute') {
+ $element = &escape("$Apache::lonxml::curdepth");
+ } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
+ $element = &escape('homework_edit_'.
+ $Apache::lonxml::curdepth);
+ }
+ my $id=$Apache::lonxml::curdepth;
+ my %data=("imagechoice.$id.type" =>'point',
+ "imagechoice.$id.formname" =>$form,
+ "imagechoice.$id.formx" =>"$idx$element",
+ "imagechoice.$id.formy" =>"$idy$element",
+ "imagechoice.$id.file" =>$bgfile,
+ "imagechoice.$id.formcoord" =>$element);
+ if ($height) {
+ $data{"imagechoice.$id.formheight"}=$height.'_'.
+ $Apache::edit::bgimgsrccurdepth;
+ }
+ if ($width) {
+ $data{"imagechoice.$id.formwidth"}=$width.'_'.
+ $Apache::edit::bgimgsrccurdepth;
+ }
+ &Apache::lonnet::appenv(\%data);
+ my $text="Click Coordinates";
+ my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
+ return $result;
+}
+
+# coordinates (x1,y1)-(x2,y2)...
+# mode can be either box, or polygon
+sub entercoord {
+ my ($idx,$mode,$width,$height,$type) = @_;
+ unless ($Apache::edit::bgimgsrc) { return ''; }
+ my $bgfile=&escape(&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$Apache::edit::bgimgsrc));
+ my $form = 'lonhomework';
+ my $element;
+ if (! defined($mode) || $mode eq 'attribute') {
+ $element = &escape("$idx\_$Apache::lonxml::curdepth");
+ } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
+ $element = &escape('homework_edit_'.
+ $Apache::lonxml::curdepth);
+ }
+ my $id=$Apache::lonxml::curdepth;
+ my %data=("imagechoice.$id.type" =>$type,
+ "imagechoice.$id.formname" =>$form,
+ "imagechoice.$id.file" =>$bgfile,
+ "imagechoice.$id.formcoord" =>$element);
+ if ($height) {
+ $data{"imagechoice.$id.formheight"}=$height.'_'.
+ $Apache::edit::bgimgsrccurdepth;
+ }
+ if ($width) {
+ $data{"imagechoice.$id.formwidth"}=$width.'_'.
+ $Apache::edit::bgimgsrccurdepth;
+ }
+ &Apache::lonnet::appenv(\%data);
+ my $text="Enter Coordinates";
+ if ($type eq 'polygon') { $text='Create Polygon Data'; }
+ my $result='<a href="/adm/imagechoice?token='.$id.'" target="imagechoice">'.$text.'</a>';
+ return $result;
+}
+
+sub deletecoorddata {
+ &Apache::lonnet::delenv('imagechoice.');
+}
+
+#----------------------------------------------------- browse
+sub browse {
+ # insert a link to call up the filesystem browser (lonindexer)
+ my ($id, $mode, $titleid, $only) = @_;
+ my $form = 'lonhomework';
+ my $element;
+ if (! defined($mode) || $mode eq 'attribute') {
+ $element = &escape("$id\_$Apache::lonxml::curdepth");
+ } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
+ $element = &escape('homework_edit_'.
+ $Apache::lonxml::curdepth);
+ }
+ my $titleelement;
+ if ($titleid) {
+ $titleelement=",'$only','','".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
} else {
- $result=$result.$token->[2];
+ $titleelement=",'$only'";
}
- }
- return $result;
+ my $result = <<"ENDBUTTON";
+<a href=\"javascript:openbrowser('$form','$element'$titleelement)\"\>Select</a>
+ENDBUTTON
+ return $result;
}
-sub insert_startouttext {
- return "\n<startouttext />\n<endouttext />";
+#----------------------------------------------------- browse
+sub search {
+ # insert a link to call up the filesystem browser (lonindexer)
+ my ($id, $mode, $titleid) = @_;
+ my $form = 'lonhomework';
+ my $element;
+ if (! defined($mode) || $mode eq 'attribute') {
+ $element = &escape("$id\_$Apache::lonxml::curdepth");
+ } elsif ($mode eq 'textnode') { # for data between <tag> ... </tag>
+ $element = &escape('homework_edit_'.
+ $Apache::lonxml::curdepth);
+ }
+ my $titleelement;
+ if ($titleid) {
+ $titleelement=",'".&escape("$titleid\_$Apache::lonxml::curdepth")."'";
+ }
+ my $result = <<"ENDBUTTON";
+<a href=\"javascript:opensearcher('$form','$element'$titleelement)\"\>Search</a>
+ENDBUTTON
+ return $result;
}
+
1;
__END__
+
+