--- loncom/interface/lonpickcourse.pm	2005/04/12 00:20:01	1.28
+++ loncom/interface/lonpickcourse.pm	2005/11/15 20:46:40	1.35
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Pick a course
 #
-# $Id: lonpickcourse.pm,v 1.28 2005/04/12 00:20:01 raeburn Exp $
+# $Id: lonpickcourse.pm,v 1.35 2005/11/15 20:46:40 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -55,7 +55,7 @@ ENDDOCUMENT
 			       'sincefilter','form','cnumelement',
 			       'cdomelement','cnameelement','roleelement',
                                'pickedcourse','instcodefilter',
-                               'ownerfilter','coursefilter']);
+                               'ownerfilter','coursefilter','multiple']);
 # domain filter and selection
     my $domainfilter=$env{'form.domainfilter'};
     $domainfilter=~s/\W//g;
@@ -111,11 +111,21 @@ ENDDOCUMENT
         $num_sections = &Apache::loncommon::get_sections($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',
@@ -144,18 +154,58 @@ ENDDOCUMENT
     }
     $r->print(<<ENDSCRIPT);
 <script>
-function gochoose(cname,cdom,cdesc) {
-    $name_code
+function gochoose(cname,cdom,cdesc,multiple,caller) {
     var openerForm = "$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 {
+    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'}.$env{'form.cdomelement'};
-        var i;
-        for (i=0;i<slct.length;i++) {
-            if (slct.options[i].value==cdom) { slct.selectedIndex=i; }
+        if (slct.options == undefined) {
+            opener.document.$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; }
+            }
         }
     }
     $autosubmit
@@ -170,24 +220,21 @@ function setSections() {
         opener.document.$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 {
+    } 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.$env{"form.form"}.currsec.options[2] = new Option(sectionsArray[0],sectionsArray[0],false,false);
-        }
-        else {
+        } else {
             for (var i=0; i<numSections; i++) {
                 opener.document.$env{"form.form"}.currsec.options[i] = new Option(sectionsArray[i],sectionsArray[i],false,false)
             }
             opener.document.$env{"form.form"}.currsec.multiple=true
             if (numSections < 3) {
                 opener.document.$env{"form.form"}.currsec.size=numSections;
-            }
-            else {
+            } else {
                 opener.document.$env{"form.form"}.currsec.size=3;
             }
             opener.document.$env{"form.form"}.currsec.options[0].selected = false
@@ -195,14 +242,17 @@ function setSections() {
     }
     self.close()
 }
+
+$jscript
 </script>
 $submitopener
-<form method="post">
+<form method="post" name="filterpicker">
 <input type="hidden" name="cnumelement" value="$env{'form.cnumelement'}" />
 <input type="hidden" name="cdomelement" value="$env{'form.cdomelement'}" />
 $name_input
 <input type="hidden" name="form" value="$env{'form.form'}" />
 $roleelement
+$multelement
 $lt{'cac'}: $sincefilterform
 <br />
 $lt{'cdo'}: $domainselectform
@@ -234,7 +284,8 @@ ENDSCRIPT
 	    ($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);
@@ -244,14 +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 '') {
@@ -260,10 +317,15 @@ 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')); }
+	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".
@@ -274,5 +336,17 @@ ENDSCRIPT
     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__