Bug 231555 [EditorMgmt] EditorHistory shouldn't store invalid items

There is little point in storing items that are invalid. We
should check if an entry is valid when it is first added to the
history and then ignore them if they are not.

1 files changed, 4 insertions, 2 deletions

diff --git a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/EditorHistory.java b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/EditorHistory.java
index 198e6e2070e..e6e9c603658 100644
--- a/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/EditorHistory.java
+++ b/bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/EditorHistory.java
@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2000, 2006 IBM Corporation and others.
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
@@ -47,7 +47,9 @@ public class EditorHistory {
      * Adds an item to the history.  Added in fifo fashion.
      */
     public void add(IEditorInput input, IEditorDescriptor desc) {
-        add(new EditorHistoryItem(input, desc), 0);
+		if (input != null && input.exists()) {
+			add(new EditorHistoryItem(input, desc), 0);
+		}
     }
 
     /**