org.eclipse.tracecompass.tmf.ui/src/org/eclipse/linuxtools/tmf/ui/views/filter/PasteHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 Kalray
   3  *
   4  * All rights reserved. This program and the accompanying materials are
   5  * made available under the terms of the Eclipse Public License v1.0 which
   6  * accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *   Xavier Raynaud - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.ui.views.filter;
  14
  15 import org.eclipse.core.commands.AbstractHandler;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.linuxtools.tmf.core.filter.model.ITmfFilterTreeNode;
  19 import org.eclipse.linuxtools.tmf.core.filter.model.TmfFilterNode;
  20 import org.eclipse.ui.IWorkbenchPage;
  21 import org.eclipse.ui.IWorkbenchPart;
  22 import org.eclipse.ui.IWorkbenchWindow;
  23 import org.eclipse.ui.PlatformUI;
  24
  25 /**
  26  * Handler for paste command in filter view
  27  * @author Xavier Raynaud <xavier.raynaud@kalray.eu>
  28  * @since 3.0
  29  */
  30 public class PasteHandler extends AbstractHandler {
  31
  32     @Override
  33     public Object execute(ExecutionEvent event) throws ExecutionException {
  34         // Check if we are closing down
  35         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  36         if (window == null) {
  37             return null;
  38         }
  39
  40         // Get the selection
  41         IWorkbenchPage page = window.getActivePage();
  42         IWorkbenchPart part = page.getActivePart();
  43         if (!(part instanceof FilterView)) {
  44             return null;
  45         }
  46         FilterView v = (FilterView) part;
  47
  48         ITmfFilterTreeNode objectToPaste = FilterEditUtils.getTransferredTreeNode();
  49         objectToPaste = objectToPaste.clone();
  50         ITmfFilterTreeNode sel = v.getSelection();
  51         if (sel == null || TmfFilterNode.NODE_NAME.equals(objectToPaste.getNodeName())) {
  52             sel = v.getFilterRoot();
  53         }
  54
  55         sel.addChild(objectToPaste);
  56         v.refresh();
  57         v.setSelection(objectToPaste);
  58         return null;
  59     }
  60
  61     @Override
  62     public boolean isEnabled() {
  63         // Check if we are closing down
  64         IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  65         if (window == null) {
  66             return false;
  67         }
  68
  69         // Get the selection
  70         IWorkbenchPage page = window.getActivePage();
  71         IWorkbenchPart part = page.getActivePart();
  72         if (!(part instanceof FilterView)) {
  73             return false;
  74         }
  75         FilterView v = (FilterView) part;
  76         ITmfFilterTreeNode sel = v.getSelection();
  77         if (sel == null) {
  78             sel = v.getFilterRoot();
  79         }
  80         ITmfFilterTreeNode objectToPaste = FilterEditUtils.getTransferredTreeNode();
  81         if (objectToPaste != null &&
  82                 (sel.getValidChildren().contains(objectToPaste.getNodeName())
  83                 || TmfFilterNode.NODE_NAME.equals(objectToPaste.getNodeName()))) {
  84             return true;
  85         }
  86         return false;
  87     }
  88
  89 }