Merge pull request #4850 from eugene7646/text_tab_5085

Disabled 'Text' content viewer tab for directories and empty files

Core/src/org/sleuthkit/autopsy/contentviewers/textcontentviewer/TextContentViewer.java

@@ -23,6 +23,7 @@ import org.openide.nodes.Node;
 import org.openide.util.NbBundle.Messages;
 import org.openide.util.lookup.ServiceProvider;
 import org.sleuthkit.autopsy.corecomponentinterfaces.DataContentViewer;
+import org.sleuthkit.datamodel.AbstractFile;
 
 /**
  * A DataContentViewer that displays text with the TextViewers available.
@@ -90,6 +91,17 @@ public class TextContentViewer implements DataContentViewer {
         if (node == null) {
             return false;
         }
+        // get the node's File, if it has one
+        AbstractFile file = node.getLookup().lookup(AbstractFile.class);
+        if (file == null) {
+            return false;
+        }
+        
+        // disable the text content viewer for directories and empty files
+        if (file.isDir() || file.getSize() == 0) {
+            return false;
+        }
+        
         return panel.isSupported(node);
     }
 

Core/src/org/sleuthkit/autopsy/contentviewers/textcontentviewer/TextContentViewerPanel.java

@@ -79,7 +79,7 @@ public class TextContentViewerPanel extends javax.swing.JPanel implements DataCo
     }
 
     /**
-     * Deterime wether the content viewer which displays this panel isSupported.
+     * Determine whether the content viewer which displays this panel isSupported.
      * This panel is supported if any of the TextViewer's displayed in it are
      * supported.
      *