a767f7035297137ff676dc149993c150cf511858
max
  Fri Sep 3 06:49:08 2021 -0700
changes after code review, refs #28080

diff --git src/hg/hgTracks/hgTracks.c src/hg/hgTracks/hgTracks.c
index 74c42f8..dabba2f 100644
--- src/hg/hgTracks/hgTracks.c
+++ src/hg/hgTracks/hgTracks.c
@@ -8023,36 +8023,36 @@
 }
 
 static void printTrackLink(struct track *track)
 /* print a link hgTrackUi with shortLabel and various icons and mouseOvers */
 {
 if (track->hasUi)
     {
     char *url = trackUrl(track->track, chromName);
     char *longLabel = replaceChars(track->longLabel, "\"", """);
     // Print an icon before the title when one is defined
     hPrintPennantIcon(track->tdb);
 
     struct dyString *dsMouseOver = dyStringCreate("%s", longLabel);
     struct trackDb *tdb = track->tdb;
 
-    if (tdb->children)
+    if (tdbIsSuper(tdb))
         {
         dyStringPrintf(dsMouseOver, " - this is a container track with %d subtracks of different types (super track)",
             slCount(tdb->children));
         }
-    else if (tdb->subtracks)
+    else if (tdbIsComposite(tdb))
         {
         dyStringPrintf(dsMouseOver, " - this is a container track with %d subtracks of similar types (composite track)",
             slCount(tdb->subtracks));
         }
 
     hPrintf("<A HREF=\"%s\" title=\"%s\">", url, dyStringCannibalize(&dsMouseOver));
 
     freeMem(url);
     freeMem(longLabel);
     }
 
 // show the folder icon from the font-awesome collection.
 // the icon collection also contains a "fa fa-folder-o" icon, which is the outline. It was decided to use only the filled out icon for now.
 if (tdbIsSuper(track->tdb) || tdbIsComposite(track->tdb))
     hPrintf("<i id='folderIcon' class='fa fa-folder'></i>");