--- loncom/interface/lonpickcourse.pm	2005/02/17 08:29:43	1.26
+++ loncom/interface/lonpickcourse.pm	2006/01/10 21:36:45	1.37
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Pick a course
 #
-# $Id: lonpickcourse.pm,v 1.26 2005/02/17 08:29:43 albertel Exp $
+# $Id: lonpickcourse.pm,v 1.37 2006/01/10 21:36:45 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -54,27 +54,40 @@ ENDDOCUMENT
         ($ENV{'QUERY_STRING'},['domainfilter','descriptfilter',
 			       'sincefilter','form','cnumelement',
 			       'cdomelement','cnameelement','roleelement',
-                               'pickedcourse','instcodefilter','ownerfilter']);
+                               'pickedcourse','instcodefilter',
+                               'ownerfilter','coursefilter','multiple']);
 # domain filter and selection
-    my $domainfilter=$ENV{'form.domainfilter'};
+    my $domainfilter=$env{'form.domainfilter'};
     $domainfilter=~s/\W//g;
     unless ($domainfilter) { $domainfilter=''; }
     my $domainselectform=&Apache::loncommon::select_dom_form($domainfilter,
                                                           'domainfilter',1);
 # description filter
-    my $descriptfilter=$ENV{'form.descriptfilter'};
+    my $descriptfilter=$env{'form.descriptfilter'};
     unless ($descriptfilter) { $descriptfilter=''; }
     my $listdescript=&HTML::Entities::encode($descriptfilter,'<>&"');
 # institutional code filter
-    my $instcodefilter=$ENV{'form.instcodefilter'};
+    my $instcodefilter=$env{'form.instcodefilter'};
     unless ($instcodefilter) { $instcodefilter=''; }
     my $listinstcode=&HTML::Entities::encode($instcodefilter,'<>&"');
 # course owner filter
-    my $ownerfilter=$ENV{'form.ownerfilter'};
+    my $ownerfilter=$env{'form.ownerfilter'};
     unless ($ownerfilter) { $ownerfilter=''; }
     my $listowner=&HTML::Entities::encode($ownerfilter,'<>&"');
+# course ID filter for DCs only
+    my ($courseidtag,$coursefilter);
+    if ($env{'user.adv'} && $domainfilter && exists($env{'user.role.dc./'.
+                        $domainfilter.'/'})) {
+        $coursefilter=$env{'form.coursefilter'};
+        unless ($coursefilter) { $coursefilter=''; }
+        my $listcourseid=&HTML::Entities::encode($coursefilter,'<>&"');
+        $courseidtag = &mt('LON-CAPA course ID');
+        $courseidtag .= qq|: <input type="text" name="coursefilter" size="25" value="$listcourseid" />
+        <br />
+        |;
+    }
 # last course activity filter and selection
-    my $sincefilter=$ENV{'form.sincefilter'};
+    my $sincefilter=$env{'form.sincefilter'};
     $sincefilter=~s/[^\d-]//g;
     unless ($sincefilter) { $sincefilter=-1; }
     my $sincefilterform=&Apache::loncommon::select_form($sincefilter,
@@ -91,18 +104,28 @@ ENDDOCUMENT
 # if called from loncreateuser, report sections, then close
     my ($loaditem,$seclist);
     my $num_sections = 0;
-    if ($ENV{'form.form'} eq 'cu' && $ENV{'form.pickedcourse'}) {
+    if ($env{'form.form'} eq 'cu' && $env{'form.pickedcourse'}) {
         $loaditem = 'onLoad="setSections()"';
-        my ($cdom,$cnum) = split/_/,$ENV{'form.pickedcourse'};
+        my ($cdom,$cnum) = split/_/,$env{'form.pickedcourse'};
         my %sections_count = ();
         $num_sections = &Apache::loncommon::get_sections($cdom,$cnum,\%sections_count);
         my @sections = ();
         if ($num_sections > 0) {
-            @sections = (sort {$a <=> $b} keys %sections_count);
+            @sections = (sort {$a <=> $b} keys(%sections_count));
             $seclist = join('","',@sections);
         }
     }
-    $r->print(&Apache::loncommon::bodytag("Selecting a Course",undef,$loaditem));
+    my $jscript;
+    my $title = 'Selecting a course';
+# Setup for multiple course selections, if flag for multiples set.
+    my $multiple = $env{'form.multiple'};
+    my $multelement;
+    if ($multiple) {
+        $title = 'Selecting course(s)';
+        $jscript = &Apache::loncommon::check_uncheck_jscript();
+        $multelement = '<input type="hidden" name="multiple" value="'.$multiple.'" />';
+    }
+    $r->print(&Apache::loncommon::bodytag($title,undef,$loaditem,undef,undef,undef,undef,1));
     my %lt=&Apache::lonlocal::texthash(
 				       'cac' => 'Course Activity',
 				       'cde' => 'Course Description',
@@ -110,39 +133,79 @@ ENDDOCUMENT
                                        'cin' => 'Course Institutional Code',
                                        'cow' => "Course Owner's usename");
     my ($name_code,$name_input);
-    if (defined($ENV{'form.cnameelement'}) && $ENV{'form.cnameelement'} ne '') {
-	$name_code = "opener.document.$ENV{'form.form'}.$ENV{'form.cnameelement'}.value=cdesc;";
+    if (defined($env{'form.cnameelement'}) && $env{'form.cnameelement'} ne '') {
+	$name_code = "opener.document.$env{'form.form'}.$env{'form.cnameelement'}.value=cdesc;";
 	$name_input ='<input type="hidden" name="cnameelement" value="'.
-	    $ENV{'form.cnameelement'}.'" />';
+	    $env{'form.cnameelement'}.'" />';
     }
     my $submitopener = '';
     my $autosubmit = '';
     my $roleelement = '';
     my $lastaction = 'self.close()';
-    if ($ENV{'form.form'} eq 'cu') {
+    if ($env{'form.form'} eq 'cu') {
         $lastaction = 'document.courselist.pickedcourse.value = cdom+"_"+cname;'."\n".
                       'document.courselist.submit();';
     }
-    my $roledom = $ENV{'form.roleelement'};
+    my $roledom = $env{'form.roleelement'};
     if ($roledom) {
         $roleelement = '<input type="hidden" name="roleelement" value="'.$roledom.'" />';
-        $submitopener = &Apache::lonroles::processpick($roledom);
+        $submitopener = &Apache::lonroles::processpick();
         $autosubmit = 'process_pick("'.$roledom.'")';
     }
     $r->print(<<ENDSCRIPT);
 <script>
-function gochoose(cname,cdom,cdesc) {
-    $name_code
-    var openerForm = "$ENV{'form.form'}";
-    opener.document.$ENV{'form.form'}.$ENV{'form.cnumelement'}.value=cname;
-    if (openerForm == 'cu' || openerForm == 'rolechoice') {
-         opener.document.$ENV{'form.form'}.$ENV{'form.cdomelement'}.value=cdom;
-    }
-    else {
-        var slct=opener.document.$ENV{'form.form'}.$ENV{'form.cdomelement'};
-        var i;
-        for (i=0;i<slct.length;i++) {
-            if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
+function gochoose(cname,cdom,cdesc,multiple,caller) {
+    var openerForm = "$env{'form.form'}";
+    courseCount = 0;
+    var courses = '';
+    if (multiple) {
+	if (typeof(document.courselist.course_id.length) == 'undefined') {
+	    // only 1 course checkbox was created
+	    if (document.courselist.course_id.checked) {
+		courses = courses + document.courselist.course_id.value + "&&";
+		courseCount ++;
+	    }
+	} else {
+	    for (var j=0; j<document.courselist.course_id.length; j++) {
+		if (document.courselist.course_id[j].checked) {
+		    courses = courses + document.courselist.course_id[j].value + "&&";
+		    courseCount ++;
+		}
+	    }
+	} 
+        opener.document.$env{'form.form'}.coursetotal.value = courseCount;
+	if (typeof(opener.document.$env{'form.form'}.coursepick.length) ==
+	    'undefined') {
+	    if (opener.document.$env{'form.form'}.coursepick.value == 'specific') {  
+		opener.document.$env{'form.form'}.coursepick.checked = true;
+	    } else {
+		opener.document.$env{'form.form'}.coursepick.checked = false;
+	    }
+	} else {
+	    for (var j=0; j<opener.document.$env{'form.form'}.coursepick.length; j++) { 
+		if (opener.document.$env{'form.form'}.coursepick[j].value == 'specific') {  
+		    opener.document.$env{'form.form'}.coursepick[j].checked = true;
+		} else {
+		    opener.document.$env{'form.form'}.coursepick[j].checked = false;
+		}
+	    }
+	}
+	if (courseCount > 0) {
+	    courses = courses.substr(0,courses.length-2);
+	    opener.document.$env{'form.form'}.courselist.value = courses;
+	}
+    } else {
+        $name_code
+        opener.document.$env{'form.form'}.$env{'form.cnumelement'}.value=cname;
+        var slct=opener.document.$env{'form.form'}.$env{'form.cdomelement'};
+        if (slct.options == undefined) {
+            opener.document.$env{'form.form'}.$env{'form.cdomelement'}.value=cdom;
+        }
+        else {
+            var i;
+            for (i=0;i<slct.length;i++) {
+                if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
+            }
         }
     }
     $autosubmit
@@ -152,44 +215,44 @@ function gochoose(cname,cdom,cdesc) {
 function setSections() {
     var numSections = $num_sections
     var sectionsArray = new Array("$seclist")
-    opener.document.$ENV{"form.form"}.currsec.length = 0
+    opener.document.$env{"form.form"}.currsec.length = 0
     if (numSections == 0) {
-        opener.document.$ENV{"form.form"}.currsec.multiple=false
-        opener.document.$ENV{"form.form"}.currsec.size=1;
-        opener.document.$ENV{"form.form"}.currsec.options[0] = new Option('No existing sections','',false,false)
-    }
-    else {
+        opener.document.$env{"form.form"}.currsec.multiple=false
+        opener.document.$env{"form.form"}.currsec.size=1;
+        opener.document.$env{"form.form"}.currsec.options[0] = new Option('No existing sections','',false,false)
+    } else {
         if (numSections == 1) {
-            opener.document.$ENV{"form.form"}.currsec.multiple=false;
-            opener.document.$ENV{"form.form"}.currsec.size=1;
-            opener.document.$ENV{"form.form"}.currsec.options[0] = new Option('Select','',true,true);
-            opener.document.$ENV{"form.form"}.currsec.options[1] = new Option('No section','',false,false) 
-            opener.document.$ENV{"form.form"}.currsec.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
-        }
-        else {
+            opener.document.$env{"form.form"}.currsec.multiple=false;
+            opener.document.$env{"form.form"}.currsec.size=1;
+            opener.document.$env{"form.form"}.currsec.options[0] = new Option('Select','',true,true);
+            opener.document.$env{"form.form"}.currsec.options[1] = new Option('No section','',false,false) 
+            opener.document.$env{"form.form"}.currsec.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
+        } else {
             for (var i=0; i<numSections; i++) {
-                opener.document.$ENV{"form.form"}.currsec.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
+                opener.document.$env{"form.form"}.currsec.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
             }
-            opener.document.$ENV{"form.form"}.currsec.multiple=true
+            opener.document.$env{"form.form"}.currsec.multiple=true
             if (numSections < 3) {
-                opener.document.$ENV{"form.form"}.currsec.size=numSections;
-            }
-            else {
-                opener.document.$ENV{"form.form"}.currsec.size=3;
+                opener.document.$env{"form.form"}.currsec.size=numSections;
+            } else {
+                opener.document.$env{"form.form"}.currsec.size=3;
             }
-            opener.document.$ENV{"form.form"}.currsec.options[0].selected = false
+            opener.document.$env{"form.form"}.currsec.options[0].selected = false
         }
     }
     self.close()
 }
+
+$jscript
 </script>
 $submitopener
-<form method="post">
-<input type="hidden" name="cnumelement" value="$ENV{'form.cnumelement'}" />
-<input type="hidden" name="cdomelement" value="$ENV{'form.cdomelement'}" />
+<form method="post" name="filterpicker">
+<input type="hidden" name="cnumelement" value="$env{'form.cnumelement'}" />
+<input type="hidden" name="cdomelement" value="$env{'form.cdomelement'}" />
 $name_input
-<input type="hidden" name="form" value="$ENV{'form.form'}" />
+<input type="hidden" name="form" value="$env{'form.form'}" />
 $roleelement
+$multelement
 $lt{'cac'}: $sincefilterform
 <br />
 $lt{'cdo'}: $domainselectform
@@ -200,6 +263,7 @@ $lt{'cin'}:
 $lt{'cow'}:
 <input type="text" name="ownerfilter" size="10" value="$listowner" />
 <br />
+$courseidtag
 $lt{'cde'}:
 <input type="text" name="descriptfilter" size="40" value="$listdescript" />
 <p><input type="submit" name="gosearch" value="Search" /></p>
@@ -207,19 +271,21 @@ $lt{'cde'}:
 <hr />
 ENDSCRIPT
 # ---------------------------------------------------------------- Get the data
-    if ($ENV{'form.gosearch'}) {
+    if ($env{'form.gosearch'}) {
         $r->print(&mt('Searching').' ...<br />&nbsp;<br />');
         $r->rflush();
 	unless ($descriptfilter) { $descriptfilter='.'; }
         unless ($instcodefilter) { $instcodefilter='.'; }
         unless ($ownerfilter) { $ownerfilter='.'; }
+        unless ($coursefilter) { $coursefilter='.'; }
         my $timefilter=($sincefilter==-1?1:time-$sincefilter);
 	my %courses=
 	    &Apache::lonnet::courseiddump
-	    ($domainfilter,$descriptfilter,$timefilter,$instcodefilter,$ownerfilter);
+	    ($domainfilter,$descriptfilter,$timefilter,$instcodefilter,$ownerfilter,$coursefilter);
 	$r->print('<form name="courselist">');
 	my %by_descrip;
-	foreach my $course (keys %courses) {
+        my $numcourses = keys(%courses);
+	foreach my $course (keys(%courses)) {
             my $descr;
             if ($courses{$course} =~ m/^([^:]*):/) {
                 $descr = &Apache::lonnet::unescape($1);
@@ -229,14 +295,20 @@ ENDSCRIPT
             my $description = lc($descr);
             push (@{$by_descrip{$description}}, $course);
 	}
+        if ($numcourses > 1 && $multiple) {
+            $r->print('<input type="button" value="check all"
+                    onclick="javascript:checkAll(document.courselist.course_id)" />                    &nbsp;&nbsp;<input type="button" value="uncheck all"
+                    onclick="javascript:uncheckAll(document.courselist.course_id)" />
+                    <br /><br />');
+        }
 	foreach my $description (sort(keys(%by_descrip))) {
             foreach my $course (@{$by_descrip{$description}}) {
 	        my $cleandesc=&HTML::Entities::encode($description,'<>&"');
 	        $cleandesc=~s/'/\\'/g;
 	        my ($cdom,$cnum)=split(/\_/,$course);
                 my ($descr,$instcode,$owner) = split/:/,$courses{$course};
-	        $r->print('<input type="button" value="Select" onClick="gochoose('.
-		      "'".$cnum."','".$cdom."','".$cleandesc."')".'" /> '.$description.' ('.
+                $r->print(&course_chooser($multiple,$cdom,$cnum,$cleandesc));
+	        $r->print($description.'('.
 		      ($Apache::lonnet::domaindescription{$cdom}?
                        $Apache::lonnet::domaindescription{$cdom}:$cdom).")");
                 unless ($instcode eq '') {
@@ -245,19 +317,39 @@ ENDSCRIPT
                 unless ($owner eq '') {
                     $r->print(", owner - ".&Apache::lonnet::unescape($owner));
                 }
+		if ($multiple) { $r->print("</label>\n"); }
                 $r->print("<br />\n");
             }
 	}
-	if (!%courses) { $r->print(&mt('None found')); }
-        $r->print('<input type="hidden" name="form" value="'.$ENV{'form.form'}.'" />'."\n".
+	if (!%courses) { 
+            $r->print(&mt('None found'));
+        } elsif ($multiple) {
+            $r->print('<input type="button" value="Submit" onClick="gochoose('."'','','',1)".'" />');
+        }
+        $r->print('<input type="hidden" name="form" value="'.$env{'form.form'}.'" />'."\n".
                    '<input type="hidden" name="pickedcourse" value="" />'."\n".
-                   '<input type="hidden" name="cnumelement" value="'.$ENV{'form.cnumelement'}.'" />'."\n".
-                   '<input type="hidden" name="cdomelement" value="'.$ENV{'form.cdomelement'}.'" />'."\n".
-                   '</form>');
+                   '<input type="hidden" name="cnumelement" value="'.$env{'form.cnumelement'}.'" />'."\n".
+                   '<input type="hidden" name="cdomelement" value="'.$env{'form.cdomelement'}.'" />'."\n");
+        if ((exists($env{'form.roleelement'})) && ($env{'form.form'} eq 'rolechoice')) {
+           $r->print('<input type="hidden" name="roleelement" value="'.$env{'form.roleelement'}.'" />'."\n");
+        }
+        $r->print("</form>\n");
     }
     $r->print('</body></html>');
     return OK;
 }
 
+sub course_chooser {
+    my ($multiple,$cdom,$cnum,$cleandesc) = @_;
+    my $output; 
+    if ($multiple) {
+        $output = '<label><input type="checkbox" name="course_id" value="'.$cdom.'_'.$cnum.'" />'."\n";
+    } else {
+        $output = '<input type="button" value="Select" onClick="gochoose('.
+                  "'".$cnum."','".$cdom."','".$cleandesc."')".'" />'."\n";
+    }
+    return $output;
+} 
+
 1;
 __END__