--- loncom/interface/lonsearchcat.pm	2013/12/01 21:29:13	1.339
+++ loncom/interface/lonsearchcat.pm	2015/06/12 21:11:07	1.345
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Search Catalog
 #
-# $Id: lonsearchcat.pm,v 1.339 2013/12/01 21:29:13 raeburn Exp $
+# $Id: lonsearchcat.pm,v 1.345 2015/06/12 21:11:07 damieng Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -78,6 +78,7 @@ use Apache::lonnavmaps;
 use Apache::lonindexer();
 use Apache::lonwishlist();
 use LONCAPA;
+use Time::HiRes qw(sleep);
 
 ######################################################################
 ######################################################################
@@ -143,7 +144,7 @@ sub handler {
     ##     this once, so the pause indicator is deleted
     ##
     if (exists($env{'form.pause'})) {
-        sleep(1);
+        Time::HiRes::sleep(0.1);
         delete($env{'form.pause'});
     }
     ##
@@ -170,7 +171,7 @@ sub handler {
     &Apache::lonhtmlcommon::clear_breadcrumbs();
 
     my @allowed_searches = ('portfolio');
-    if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
+    if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'}) eq 'F') {
         push(@allowed_searches,'res');
     } 
     my $crumb_text = 'Portfolio Search';
@@ -193,12 +194,15 @@ sub handler {
                 &Apache::lonnet::logthis('lonsearchcat:'.
                                          'Unable to recover data from '.
                                          $persistent_db_file);
-		my $msg =
-		    'We were unable to retrieve data describing your search. '.
-		    'This is a serious error and has been logged. '.
-		    'Please alert your LON-CAPA administrator.';
-		&Apache::loncommon::simple_error_page($r,'Search Error',
-						      $msg);
+                my $msg =
+                    &mt('We were unable to retrieve data describing your search.').
+                    ' '.&mt('This is a serious error and has been logged.').
+                    '<br />'.
+                    &mt('Please alert your LON-CAPA administrator.');
+                &Apache::loncommon::simple_error_page(
+                    $r,'Search Error',
+                    $msg,
+                    {'no_auto_mt_msg' => 1});
 		return OK;
             }
         }
@@ -446,7 +450,7 @@ sub print_basic_search_form {
 					    $env{'form.catalogmode'} ne 'import');
     my $scrout = &Apache::loncommon::start_page('Content Library').$bread_crumb;
 # Search form for resource space 
-    if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'})) {
+    if (&Apache::lonnet::allowed('bre',$env{'request.role.domain'}) eq 'F') {
         $scrout .= &setup_basic_search($r,'res',$hidden_fields,$closebutton);
         $scrout .= '<hr /><br />';
     }
@@ -2047,17 +2051,15 @@ sub print_sort_form {
         &Apache::lonnet::logthis(&Apache::lonmysql::get_error());
         return;
     }
+    # update results
+    my $newloc = '/adm/searchcat?phase=results&persistent_db_id='.
+        $env{'form.persistent_db_id'};
     my $js =<<END;
 <script type="text/javascript">
-// <![CDATA[
-    function change_sort() {
-        var newloc = "/adm/searchcat?phase=results";
-        newloc += "&persistent_db_id=$env{'form.persistent_db_id'}";
-        newloc += "&sortby=";
-        newloc += document.forms.statusform.elements.sortby.value;
-        parent.resultsframe.location= newloc;
-    }
-// ]]>
+    var frame = parent.resultsframe;
+    var frameDoc = frame.document;
+    if (frameDoc.readyState  == 'complete')
+        frame.location = "$newloc";
 </script>
 END
 
@@ -2225,8 +2227,24 @@ SCRIPT
     $r->rflush();
 }
 
+sub reload_result_frame {
+    my ($r) = @_;
+    my $newloc = '/adm/searchcat?phase=results&persistent_db_id='.
+        $env{'form.persistent_db_id'};
+    $r->print(<<SCRIPT);
+<script type="text/javascript">
+    var frame = parent.resultsframe;
+    var frameDoc = frame.document;
+    if (frameDoc.readyState  == 'complete')
+        frame.location = "$newloc";
+</script>
+SCRIPT
+
+    $r->rflush();
+}
+
 {
-    my $max_time  = 300;  # seconds for the search to complete
+    my $max_time  = 60;  # seconds for the search to complete
     my $start_time = 0;
     my $last_time = 0;
 
@@ -2407,6 +2425,7 @@ END
     ##
     ## Prepare for the big loop.
     my $hitcountsum;
+    my $oldhitcountsum;
     my %matches;
     my $server; 
     my $status;
@@ -2453,7 +2472,7 @@ END
                 &update_status($r,
                        &mt('waiting on [_1]',join(' ',keys(%Server_status))));
             }
-            sleep(1); 
+            Time::HiRes::sleep(0.1);
         }
         #
         # Loop through the servers we have contacted but do not
@@ -2529,7 +2548,13 @@ END
                 delete($Server_status{$server});
             }
             last if ($connection->aborted());
-            &update_count_status($r,$hitcountsum);
+            if ($oldhitcountsum < $hitcountsum) {
+                &update_count_status($r,$hitcountsum);
+                if ($hitcountsum <= $env{'form.show'}) {
+                    reload_result_frame($r);
+                }
+                $oldhitcountsum = $hitcountsum;
+            }
         }
         last if ($connection->aborted());
         &update_seconds($r);
@@ -2623,6 +2648,8 @@ sub display_results {
     if ($env{'form.catalogmode'} eq 'import') {
         if (! tie(%groupsearch_db,'GDBM_File',$diropendb,
                   &GDBM_WRCREAT(),0640)) {
+            # NOTE: this can happen when a previous request to searchcat?phase=results gets interrupted
+            # (%groupsearch_db is not untied)
             $r->print('<p class="LC_error">'.
               &mt('Unable to save import results.').
               '</p>'.
@@ -2631,6 +2658,10 @@ sub display_results {
             $r->rflush();
             return;
         } 
+        # untie %groupsearch_db if the connection gets aborted before the end
+        $r->register_cleanup(sub {
+            untie %groupsearch_db if (tied(%groupsearch_db));
+        });
     }
     ##
     ## Prepare the table for querying
@@ -2772,8 +2803,7 @@ sub display_results {
     );
 
     if ($total_results == 0) {
-        $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2" />'.
-                  '<p class="LC_info">'.&mt('There are currently no results.').'</p>'.
+        $r->print('<p class="LC_info">'.&mt('There are currently no results.').'</p>'.
                   "</form>".
 		  &Apache::loncommon::end_page());
         return;
@@ -3148,7 +3178,8 @@ SCRIPT
 
     my $start_page  = &Apache::loncommon::start_page(undef,$js,
 						     {'only_body' =>1,
-                                                      'add_wishlist' =>1});
+                                                      'add_wishlist' =>1,
+                                                      'add_modal' =>1});
     my $result=<<END;
 $start_page
 <form name="results" method="post" action="/adm/searchcat">
@@ -3796,7 +3827,7 @@ Cleans the global %groupsearch_db by rem
 ######################################################################
 sub start_fresh_session {
     delete $groupsearch_db{'mode_catalog'};
-    foreach (keys %groupsearch_db) {
+    foreach (keys(%groupsearch_db)) {
         if ($_ =~ /^pre_/) {
             delete $groupsearch_db{$_};
         }