- Added action evaluator to start workflow action so the guest user can not start workflows

- Handled the case in the start workflow wizard where there are no workflows to start (info message displayed)

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3667 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

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

@@ -0,0 +1,42 @@
+/*
+ * 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 javax.faces.context.FacesContext;
+
+import org.alfresco.web.action.ActionEvaluator;
+import org.alfresco.web.app.servlet.FacesHelper;
+import org.alfresco.web.bean.NavigationBean;
+import org.alfresco.web.bean.repository.Node;
+
+/**
+ * UI Action Evaluator - Start workflow on a node.
+ * 
+ * @author gavinc
+ */
+public class StartWorkflowEvaluator implements ActionEvaluator
+{
+   /**
+    * @see org.alfresco.web.action.ActionEvaluator#evaluate(org.alfresco.web.bean.repository.Node)
+    */
+   public boolean evaluate(Node node)
+   {
+      NavigationBean nav =
+         (NavigationBean)FacesHelper.getManagedBean(FacesContext.getCurrentInstance(), "NavigationBean");
+      return (nav.getIsGuest() == false);
+   }
+}

source/java/org/alfresco/web/bean/workflow/StartWorkflowWizard.java

@@ -447,6 +447,17 @@ public class StartWorkflowWizard extends BaseWizardBean
             new String[] {workflowName});
    }
    
+   /**
+    * Determines whether there are any workflows to start
+    * @return
+    */
+   public boolean getHasStartableWorkflows()
+   {
+      // get the list of startable workflow, this will intialise the list if necessary
+      List<SelectItem> workflows = getStartableWorkflows();
+      return (workflows.size() > 0);
+   }
+   
    /**
     * Returns a list of workflows that can be started.
     *