- 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

config/alfresco/messages/webclient.properties

@@ -963,6 +963,7 @@ start_workflow_options_title=Workflow Options
 start_workflow_options_desc=Select options for the workflow
 start_workflow_finish_instruction=To start the workflow press Finish. To review or change your selections click Back.
 start_workflow_no_metadata=There is no metadata to collect for this particular workflow.
+start_workflow_no_workflows=There are no workflows currently deployed in the repository, press Cancel to exit the wizard.
 users_and_roles=Users and their Roles
 resources=Resources
 manage_task=Manage Task

config/alfresco/web-client-config-workflow-actions.xml

@@ -5,6 +5,7 @@
          <action id="start_workflow">
             <label-id>start_workflow</label-id>
             <image>/images/icons/new_workflow.gif</image>
+            <evaluator>org.alfresco.web.action.evaluator.StartWorkflowEvaluator</evaluator>
             <action>wizard:startWorkflow</action>
             <action-listener>#{WizardManager.setupParameters}</action-listener>
             <params>

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.
     * 

source/web/css/main.css

@@ -529,6 +529,13 @@ a.topToolbarLinkHighlight, a.topToolbarLinkHighlight:link, a.topToolbarLinkHighl
    border-color: #AAAAAA;
 }
 
+.workflowSelection
+{
+	border: 1px solid #676767; 
+	background-color: #efefef; 
+	padding: 6px 12px 12px 6px;
+}
+
 .workflowSummary
 {
    margin-left: 6px;

source/web/jsp/workflow/start-workflow-wizard/choose-workflow.jsp

@@ -19,10 +19,29 @@
 <%@ taglib uri="/WEB-INF/alfresco.tld" prefix="a" %>
 <%@ taglib uri="/WEB-INF/repo.tld" prefix="r" %>
 
-<h:panelGrid columns="1" style="border: 1px solid #676767; background-color: #efefef; padding: 6px 12px 12px 6px;">
+<%@ page import="org.alfresco.web.ui.common.PanelGenerator" %>
+
+<h:panelGroup rendered="#{WizardManager.bean.hasStartableWorkflows == false}">
+   <f:verbatim>
+      <%PanelGenerator.generatePanelStart(out, request.getContextPath(), "yellowInner", "#ffffcc");%>
+      <table><tr><td>
+   </f:verbatim>
+   <h:graphicImage url="/images/icons/info_icon.gif" />
+   <f:verbatim>
+      </td><td>
+   </f:verbatim>
+   <h:outputText value="#{msg.start_workflow_no_workflows}" />
+   <f:verbatim>
+      </td></tr></table>
+      <%PanelGenerator.generatePanelEnd(out, request.getContextPath(), "yellowInner");%>
+   </f:verbatim>
+</h:panelGroup>
+
+<h:panelGrid columns="1" styleClass="workflowSelection" rendered="#{WizardManager.bean.hasStartableWorkflows}">
    <h:outputText value="#{msg.available_workflows}:"/>
    <h:selectOneRadio id="selected-workflow" value="#{WizardManager.bean.selectedWorkflow}" 
                      layout="pageDirection">
       <f:selectItems value="#{WizardManager.bean.startableWorkflows}" />
    </h:selectOneRadio>
-</h:panelGrid>
+</h:panelGrid>
+