org.eclipse.jst.pagedesigner/src/org/eclipse/jst/pagedesigner/commands/CutAction.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2006 Sybase, Inc. and others.\r
   3  *\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     Sybase, Inc. - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.eclipse.jst.pagedesigner.commands;\r
  13 \r
  14 import org.eclipse.gef.ui.actions.UpdateAction;\r
  15 import org.eclipse.gef.ui.parts.GraphicalEditor;\r
  16 import org.eclipse.jst.pagedesigner.PDPlugin;\r
  17 import org.eclipse.jst.pagedesigner.commands.range.CutCommand;\r
  18 import org.eclipse.jst.pagedesigner.dom.EditModelQuery;\r
  19 import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer;\r
  20 \r
  21 /**\r
  22  * @author mengbo\r
  23  */\r
  24 public class CutAction extends DesignAction implements UpdateAction {\r
  25         /**\r
  26          * @param editor\r
  27          */\r
  28         public CutAction(GraphicalEditor editor) {\r
  29                 super(editor, PDPlugin.getResourceString("Action.Name.Cut"));//$NON-NLS-1$\r
  30         }\r
  31 \r
  32         public void perform() {\r
  33                 DesignerCommand command = null;\r
  34                 IHTMLGraphicalViewer viewer = getViewer();\r
  35                 if (viewer.isInRangeMode()) {\r
  36                         command = new CutCommand(viewer);\r
  37                         command.execute();\r
  38                 } else {\r
  39                         command = new CutNodeCommand(viewer);\r
  40                         command.execute();\r
  41                 }\r
  42         }\r
  43 \r
  44         /*\r
  45          * (non-Javadoc)\r
  46          * \r
  47          * @see org.eclipse.jface.action.IAction#isEnabled()\r
  48          */\r
  49         public boolean isEnabled() {\r
  50                 IHTMLGraphicalViewer viewer = getViewer();\r
  51                 if (viewer != null) {\r
  52                         if (viewer.isInRangeMode()\r
  53                                         && !EditModelQuery.isSame(viewer.getRangeSelection())) {\r
  54                                 return true;\r
  55                         } else if (!viewer.isInRangeMode()\r
  56                                         && viewer.getSelectedEditParts().size() > 0) {\r
  57                                 return true;\r
  58                         }\r
  59                 }\r
  60                 return false;\r
  61         }\r
  62 \r
  63         /*\r
  64          * (non-Javadoc)\r
  65          * \r
  66          * @see org.eclipse.gef.ui.actions.UpdateAction#update()\r
  67          */\r
  68         public void update() {\r
  69                 setEnabled(isEnabled());\r
  70         }\r
  71 }\r