--- loncom/interface/londocs.pm	2014/08/25 01:42:30	1.584
+++ loncom/interface/londocs.pm	2014/12/21 16:26:31	1.591
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.584 2014/08/25 01:42:30 raeburn Exp $
+# $Id: londocs.pm,v 1.591 2014/12/21 16:26:31 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -977,7 +977,7 @@ sub docs_change_log {
 
 sub update_paste_buffer {
     my ($coursenum,$coursedom,$folder) = @_;
-    my (@possibles,%removals,%cuts);
+    my (@possibles,%removals,%cuts,$output);
     if ($env{'form.multiremove'}) {
         $env{'form.multiremove'} =~ s/,$//;
         map { $removals{$_} = 1; } split(/,/,$env{'form.multiremove'});
@@ -1045,10 +1045,12 @@ sub update_paste_buffer {
         next if (exists($pasteurls{$coursedom.'_'.$coursenum.'_'.$url}));
         my ($suffix,$errortxt,$locknotfreed) =
             &new_timebased_suffix($env{'user.domain'},$env{'user.name'},'paste');
-        push(@newpaste,$suffix);
-        if ($locknotfreed) {
-            return $locknotfreed;
-            last;
+        if ($suffix ne '') {
+            push(@newpaste,$suffix);
+        } else {
+            if ($locknotfreed) {
+                return $locknotfreed;
+            }
         }
         if (&is_supplemental_title($title)) {
             &Apache::lonnet::appenv({'docs.markedcopy_supplemental_'.$suffix => $title});
@@ -1082,13 +1084,17 @@ sub update_paste_buffer {
                 }
             }
         }
+        if ($locknotfreed) {
+            $output = $locknotfreed;
+            last;
+        }
     }
     if (@newpaste) {
         $addtoenv{'docs.markedcopies'} = join(',',(@currpaste,@newpaste));
     }
     &Apache::lonnet::appenv(\%addtoenv);
     delete($env{'form.markcopy'});
-    return;
+    return $output;
 }
 
 sub recurse_uploaded_maps {
@@ -1191,10 +1197,14 @@ sub print_paste_buffer {
                     $icon = &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
                     $icon .= '/navmap.folder.closed.gif';
                 }
+                my $title = $env{'docs.markedcopy_title_'.$suffix};
+                if ($title eq '') {
+                    ($title) = ($url =~ m{/([^/]+)$});
+                }
                 $buffer = '<img src="'.$icon.'" alt="" class="LC_icon" />'.
                           ': '.
                           &Apache::loncommon::parse_supplemental_title(
-                             &LONCAPA::map::qtescape($env{'docs.markedcopy_title_'.$suffix}));
+                             &LONCAPA::map::qtescape($title));
             }
             $pasteitems .= '<div class="LC_left_float">';
             my ($options,$onclick);
@@ -2603,26 +2613,44 @@ sub update_parameter {
         }
         return $haschanges;
     } else {
-        return 0 if ($env{'form.changeparms'} !~ /^($valid_parameters_re)$/);
+        my $haschanges = 0;
+        return $haschanges if ($env{'form.changeparms'} !~ /^($valid_parameters_re)$/);
 
         my $which = $env{'form.changeparms'};
         my $idx = $env{'form.setparms'};
+        my $oldvalue = 0;
+        my $newvalue = 0;
+        my $current = (&LONCAPA::map::getparameter($idx,'parameter_'.$which))[0];
+        if ($which eq 'randompick') {
+            if ($current =~ /^(\d+)$/) {
+                $oldvalue = $1;
+            }
+        } elsif ($current =~ /^yes$/i) {
+            $oldvalue = 1;
+        }
         if ($env{'form.'.$which.'_'.$idx}) {
-	    my $value = ($which eq 'randompick') ? $env{'form.rpicknum_'.$idx}
-	                                         : 'yes';
-	    &LONCAPA::map::storeparameter($idx, 'parameter_'.$which, $value,
-				          $parameter_type{$which});
-	    &remember_parms($idx,$which,'set',$value);
-        } else {
-	    &LONCAPA::map::delparameter($idx,'parameter_'.$which);
-
-	    &remember_parms($idx,$which,'del');
+	    $newvalue = ($which eq 'randompick') ? $env{'form.rpicknum_'.$idx}
+	                                         : 1;
         }
-        return 1;
+        if ($oldvalue ne $newvalue) {
+            $haschanges = 1;
+            if ($newvalue) {
+                my $storeval = 'yes';
+                if ($which eq 'randompick') {
+                    $storeval = $newvalue;
+                }
+	        &LONCAPA::map::storeparameter($idx, 'parameter_'.$which, $storeval,
+				              $parameter_type{$which});
+	        &remember_parms($idx,$which,'set',$storeval);
+            } else {
+	        &LONCAPA::map::delparameter($idx,'parameter_'.$which);
+	        &remember_parms($idx,$which,'del');
+            }
+        }
+        return $haschanges;
     }
 }
 
-
 sub handle_edit_cmd {
     my ($coursenum,$coursedom) =@_;
     if ($env{'form.cmd'} eq '') {
@@ -2714,7 +2742,7 @@ sub editor {
 	&snapshotbefore();
 
 	if (&update_parameter()) {
-	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container);
+	    ($errtext,$fatal)=&storemap($coursenum,$coursedom,$folder.'.'.$container,1);
 	    return $errtext if ($fatal);
 	}
 
@@ -2810,7 +2838,7 @@ sub editor {
                     my ($name,$url)=split(/\:/,$LONCAPA::map::resources[$res]);
                     $name=&LONCAPA::map::qtescape($name);
                     $url=&LONCAPA::map::qtescape($url);
-                    next unless ($name && $url);
+                    next unless $url;
                     my %denied =
                         &action_restrictions($coursenum,$coursedom,$url,
                                              $env{'form.folderpath'},\%curr_groups);
@@ -3358,6 +3386,7 @@ sub entryline {
 
     $renametitle=~s/\\/\\\\/g;
     $renametitle=~s/\&quot\;/\\\"/g;
+    $renametitle=~s/"/%22/g;
     $renametitle=~s/ /%20/g;
     $oldtitle = $renametitle;
     $renametitle=~s/\&#39;/\\\'/g;
@@ -3825,6 +3854,7 @@ sub new_timebased_suffix {
     if ($type eq 'paste') {
         $prefix = $type;
         $namespace = 'courseeditor';
+        $idtype = 'addcode';
     } elsif ($type eq 'map') {
         $prefix = 'docs';
         if ($area eq 'supplemental') {
@@ -3836,9 +3866,8 @@ sub new_timebased_suffix {
         $prefix = $type;
         $namespace = 'templated';
     }
-    $idtype = 'concat';
     my ($suffix,$freedlock,$error) =
-        &Apache::lonnet::get_timebased_id($prefix,'num',$namespace,$dom,$num);
+        &Apache::lonnet::get_timebased_id($prefix,'num',$namespace,$dom,$num,$idtype);
     if (!$suffix) {
         if ($type eq 'paste') {
             $errtext = &mt('Failed to acquire a unique timestamp-based suffix when adding to the paste buffer.');
@@ -3858,9 +3887,19 @@ sub new_timebased_suffix {
             '<div class="LC_error">'.
             &mt('There was a problem removing a lockfile.').' ';
         if ($type eq 'paste') {
-            &mt('This will prevent use of the paste buffer until th next log-in.');
+            if ($freedlock eq 'nolock') {
+                $locknotfreed =
+                    '<div class="LC_error">'.
+                    &mt('A lockfile was not released when you added content to the clipboard earlier in this session.').' '.
+ 
+                    &mt('As a result addition of items to the clipboard wll be unavailable until your next log-in.');
+            } else { 
+                $locknotfreed .=
+                    &mt('This will prevent addition of items to the clipboard until your next log-in.');
+            }
         } elsif ($type eq 'map') {
-            &mt('This will prevent creation of additional folders or composite pages in this course.');
+            $locknotfreed .=
+                &mt('This will prevent creation of additional folders or composite pages in this course.');
         } elsif ($type eq 'smppg') {
             $locknotfreed .=
                 &mt('This will prevent creation of additional simple pages in this course.');
@@ -5815,6 +5854,7 @@ sub editing_js {
             if (&Apache::lonnet::is_on_map($res)) {
                 $backtourl = &HTML::Entities::encode(&Apache::lonnet::clutter($res),'<>&"').'?symb='.
                              &HTML::Entities::encode($caller,'<>&"');
+                $backtourl = &Apache::loncommon::escape_single($backtourl);
             } else {
                 $backtourl = '/adm/navmaps';
             }