Merge Offline Edit dev branch to HEAD

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@8527 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/coci/CancelEditingDialog.java

@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+package org.alfresco.web.bean.coci;
+
+import javax.faces.context.FacesContext;
+
+import org.alfresco.model.ContentModel;
+import org.alfresco.web.app.Application;
+import org.alfresco.web.bean.repository.Node;
+import org.alfresco.web.ui.common.Utils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+
+public class CancelEditingDialog extends CheckinCheckoutDialog
+{
+    public static final String LBL_CANCEL_EDITING = "cancel_editing";
+    public static final String MSG_CANCEL_EDITING_FOR = "cancel_editing_for";
+
+    private static Log logger = LogFactory.getLog(CheckinCheckoutDialog.class);
+
+    @Override
+    protected String finishImpl(FacesContext context, String outcome) throws Exception
+    {
+        undoCheckoutFile(context, outcome);
+        return "dialog:close[2]";
+    }
+
+    @Override
+    public String getContainerTitle()
+    {
+        return Application.getMessage(FacesContext.getCurrentInstance(), MSG_CANCEL_EDITING_FOR) + " '" + property.getDocument().getName() + "'";
+    }
+
+    @Override
+    public boolean getFinishButtonDisabled()
+    {
+        return false;
+    }
+
+    @Override
+    public String getFinishButtonLabel()
+    {
+        return Application.getMessage(FacesContext.getCurrentInstance(), LBL_CANCEL_EDITING);
+    }
+
+    /**
+     * Action to undo the checkout of a locked document. This document may
+     * either by the original copy or the working copy node. Therefore calculate
+     * which it is, if the working copy is found then we simply cancel checkout
+     * on that document. If the original copy is found then we need to find the
+     * appropriate working copy and perform the action on that node.
+     */
+    public String undoCheckoutFile(FacesContext context, String outcome)
+    {
+        Node node = property.getDocument();
+        if (node != null)
+        {
+            try
+            {
+                if (node.hasAspect(ContentModel.ASPECT_WORKING_COPY))
+                {
+                    this.property.getVersionOperationsService().cancelCheckout(node.getNodeRef());
+                }
+                else if (node.hasAspect(ContentModel.ASPECT_LOCKABLE))
+                {
+                    // TODO: find the working copy for this document and cancel
+                    // the checkout on it
+                    // is this possible? as currently only the workingcopy
+                    // aspect has the copyReference
+                    // attribute - this means we cannot find out where the copy
+                    // is to cancel it!
+                    // can we construct an XPath node lookup?
+                    throw new RuntimeException("NOT IMPLEMENTED");
+                }
+                else
+                {
+                    throw new IllegalStateException("Node supplied for undo checkout has neither Working Copy or Locked aspect!");
+                }
+
+                resetState();
+            }
+            catch (Throwable err)
+            {
+                Utils.addErrorMessage(Application.getMessage(FacesContext.getCurrentInstance(), MSG_ERROR_CANCELCHECKOUT) + err.getMessage(), err);
+            }
+        }
+        else
+        {
+            logger.warn("WARNING: undoCheckout called without a current WorkingDocument!");
+        }
+
+        return outcome;
+    }
+
+}