Final set of UI dialog conversion changes from usethelink. A few associated minor fixes. Improvements and optimisations to automagic file upload JSF trickery

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@7976 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/preview/DocumentPreviewBean.java

@@ -25,18 +25,30 @@
 package org.alfresco.web.bean.preview;
 
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
+import javax.faces.context.FacesContext;
+import javax.faces.event.ActionEvent;
+
+import org.alfresco.service.cmr.repository.NodeRef;
 import org.alfresco.service.cmr.repository.TemplateService;
+import org.alfresco.web.app.Application;
+import org.alfresco.web.bean.dialog.NavigationSupport;
 import org.alfresco.web.bean.repository.Node;
+import org.alfresco.web.bean.repository.Repository;
+import org.alfresco.web.ui.common.component.UIActionLink;
 
 /**
  * Backing bean for the Preview Document in Template action page
  * 
  * @author Kevin Roast
  */
-public class DocumentPreviewBean extends BasePreviewBean
+public class DocumentPreviewBean extends BasePreviewBean implements NavigationSupport
 {
+   private final static String MSG_PREVIEW_OF = "preview_of";
+   private final static String MSG_CLOSE = "close";
+
    /**
     * Returns the document this bean is currently representing
     * 
@@ -63,4 +75,105 @@ public class DocumentPreviewBean extends BasePreviewBean
       
       return model;
    }
+
+   @Override
+   protected String finishImpl(FacesContext context, String outcome) throws Exception
+   {
+      return null;
+   }
+
+   public String getCurrentItemId()
+   {
+      return getId();
+   }
+
+   public String getOutcome()
+   {
+      return "dialog:close:dialog:previewContent";
+   }
+
+   public void nextItem(ActionEvent event)
+   {
+      UIActionLink link = (UIActionLink) event.getComponent();
+      Map<String, String> params = link.getParameterMap();
+      String id = params.get("id");
+      if (id != null && id.length() != 0)
+      {
+         List<Node> nodes = this.browseBean.getContent();
+         if (nodes.size() > 1)
+         {
+            // perform a linear search - this is slow but stateless
+            // otherwise we would have to manage state of last selected node
+            // this gets very tricky as this bean is instantiated once and never
+            // reset - it does not know when the document has changed etc.
+            for (int i = 0; i < nodes.size(); i++)
+            {
+               if (id.equals(nodes.get(i).getId()) == true)
+               {
+                  Node next;
+                  // found our item - navigate to next
+                  if (i != nodes.size() - 1)
+                  {
+                     next = nodes.get(i + 1);
+                  }
+                  else
+                  {
+                     // handle wrapping case
+                     next = nodes.get(0);
+                  }
+
+                  // prepare for showing details for this node
+                  this.browseBean.setupContentAction(next.getId(), false);
+                  break;
+               }
+            }
+         }
+      }
+   }
+
+   public void previousItem(ActionEvent event)
+   {
+      UIActionLink link = (UIActionLink) event.getComponent();
+      Map<String, String> params = link.getParameterMap();
+      String id = params.get("id");
+      if (id != null && id.length() != 0)
+      {
+         List<Node> nodes = this.browseBean.getContent();
+         if (nodes.size() > 1)
+         {
+            // see above
+            for (int i = 0; i < nodes.size(); i++)
+            {
+               if (id.equals(nodes.get(i).getId()) == true)
+               {
+                  Node previous;
+                  // found our item - navigate to previous
+                  if (i != 0)
+                  {
+                     previous = nodes.get(i - 1);
+                  }
+                  else
+                  {
+                     // handle wrapping case
+                     previous = nodes.get(nodes.size() - 1);
+                  }
+
+                  // prepare for showing details for this node
+                  this.browseBean.setupContentAction(previous.getId(), false);
+                  break;
+               }
+            }
+         }
+      }
+   }
+
+   public String getContainerTitle()
+   {
+      return Application.getMessage(FacesContext.getCurrentInstance(), MSG_PREVIEW_OF) + " '" + getName() + "'";
+   }
+
+   public String getCancelButtonLabel()
+   {
+      return Application.getMessage(FacesContext.getCurrentInstance(), MSG_CLOSE);
+   }
 }