. Added unlock action to doc details list of actions.

- fixes AWC-566 and AWC-195 and AWC-221
. Fix for unreported issue where an error would occur when showing the details of a locked doc where it's associated working-copy had been deleted.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2912 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/action/evaluator/UnlockDocEvaluator.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+package org.alfresco.web.action.evaluator;
+
+import org.alfresco.web.action.ActionEvaluator;
+import org.alfresco.web.bean.repository.Node;
+
+/**
+ * UI Action Evaluator - Unlock a locked document.
+ * 
+ * @author Kevin Roast
+ */
+public final class UnlockDocEvaluator implements ActionEvaluator
+{
+   /**
+    * @see org.alfresco.web.action.ActionEvaluator#evaluate(org.alfresco.web.bean.repository.Node)
+    */
+   public boolean evaluate(Node node)
+   {
+      return (node.isLocked() == true);
+   }
+}