X-Git-Url: http://git.phpeclipse.com

diff --git a/net.sourceforge.phpeclipse.xdebug.ui/src/net/sourceforge/phpeclipse/xdebug/ui/php/launching/PHPPathMapTab.java b/net.sourceforge.phpeclipse.xdebug.ui/src/net/sourceforge/phpeclipse/xdebug/ui/php/launching/PHPPathMapTab.java
index 0992e5d..64fdb10 100644
--- a/net.sourceforge.phpeclipse.xdebug.ui/src/net/sourceforge/phpeclipse/xdebug/ui/php/launching/PHPPathMapTab.java
+++ b/net.sourceforge.phpeclipse.xdebug.ui/src/net/sourceforge/phpeclipse/xdebug/ui/php/launching/PHPPathMapTab.java
@@ -16,6 +16,8 @@ import net.sourceforge.phpeclipse.xdebug.ui.MultipleInputDialog;
 import net.sourceforge.phpeclipse.xdebug.ui.php.launching.PHPEnvironmentTab.EnvironmentVariableContentProvider;
 import net.sourceforge.phpeclipse.xdebug.ui.php.launching.PHPEnvironmentTab.EnvironmentVariableLabelProvider;
 */
+//import org.eclipse.core.resources.IProject;
+//import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.core.runtime.IStatus;
@@ -281,16 +283,22 @@ public class PHPPathMapTab extends AbstractLaunchConfigurationTab {
 	 * @param event the selection change event
 	 */
 	protected void handleTableSelectionChanged(SelectionChangedEvent event) {
-		int size = ((IStructuredSelection)event.getSelection()).size();
-		int idx = fPathMapTable.getTable().getSelectionIndex();
-		int count = fPathMapTable.getTable().getItemCount();
-		if (size==1) {
-			fEditButton.setEnabled(idx>0);
-			fUpButton.setEnabled(idx>0);
-			fDownButton.setEnabled((idx>=0)&&(idx<count-1));
+		int size  = ((IStructuredSelection)event.getSelection()).size();  // Get number of selected items
+		int idx   = fPathMapTable.getTable().getSelectionIndex();         // Get the index of the selected item
+		int count = fPathMapTable.getTable().getItemCount();              // Get the number of entries within the pathmap list
+		
+		if (size == 1) {                                              // If one pathmap entry is selected
+			fEditButton.setEnabled (idx >= 0);                        // Enable 'Edit' button if a pathmap entry is selected
+			fUpButton.setEnabled (idx > 0);                           // Enable 'Up' button only if the selected entry is not the very first one
+			fDownButton.setEnabled ((idx >= 0) && (idx < count-1));   // Enable 'Down' button only if the selected entry is not the very last one
+		}
+		else {                                                        // If nothing selected, or more than one entry selected
+		    fEditButton.setEnabled (false);                           // Disable 'Edit' button 
+		    fUpButton.setEnabled (false);                             // Disable 'Up' button
+		    fDownButton.setEnabled (false);                           // Disable 'Down' button
 		}
 		
-		fRemoveButton.setEnabled(size > 0);
+		fRemoveButton.setEnabled (size > 0);                          // Enable 'Remove' if at least on entry is selected                    
 	}
 	
 	/**
@@ -470,6 +478,20 @@ public class PHPPathMapTab extends AbstractLaunchConfigurationTab {
 		}
 	}
 
+	/* (non-Javadoc)
+	 * @see org.eclipse.debug.ui.ILaunchConfigurationTab#isValid(org.eclipse.debug.core.ILaunchConfiguration)
+	 */
+	public boolean isValid(ILaunchConfiguration launchConfig) {
+		// need to use exception here!
+		setErrorMessage(null);
+		
+		if (fPathMapTable.getTable().getItems().length == 0) {
+			setErrorMessage("Mappath empty!");
+			return false;
+		}
+		return true;
+	}
+		
 	public String getName() {
 		return "Pathmap";
 	}