bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/modelBrowser/handlers/StandardPasteHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007 VTT Technical Research Centre of Finland and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Eclipse Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/epl-v10.html
   7  *
   8  * Contributors:
   9  *     VTT Technical Research Centre of Finland - initial API and implementation
  10  *******************************************************************************/
  11 package org.simantics.modeling.ui.modelBrowser.handlers;
  12
  13
  14 import java.lang.reflect.InvocationTargetException;
  15
  16 import org.eclipse.core.commands.AbstractHandler;
  17 import org.eclipse.core.commands.ExecutionEvent;
  18 import org.eclipse.core.commands.ExecutionException;
  19 import org.eclipse.core.commands.IHandler;
  20 import org.eclipse.core.runtime.IProgressMonitor;
  21 import org.eclipse.core.runtime.SubMonitor;
  22 import org.eclipse.jface.dialogs.ProgressMonitorDialog;
  23 import org.eclipse.jface.operation.IRunnableWithProgress;
  24 import org.eclipse.jface.viewers.ISelection;
  25 import org.eclipse.swt.widgets.Shell;
  26 import org.eclipse.ui.PlatformUI;
  27 import org.eclipse.ui.handlers.HandlerUtil;
  28 import org.simantics.Simantics;
  29 import org.simantics.db.Resource;
  30 import org.simantics.db.common.primitiverequest.Adapter;
  31 import org.simantics.db.common.utils.Logger;
  32 import org.simantics.db.exception.DatabaseException;
  33 import org.simantics.db.layer0.adapter.PasteHandler;
  34 import org.simantics.ui.SimanticsUI;
  35 import org.simantics.utils.ui.ErrorLogger;
  36 import org.simantics.utils.ui.ExceptionUtils;
  37
  38 public class StandardPasteHandler extends AbstractHandler implements IHandler {
  39
  40     @Override
  41     public Object execute(ExecutionEvent event) throws ExecutionException {
  42
  43         final ISelection selection = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService().getSelection();
  44         final PasteHandler handler = SimanticsUI.filterSingleSelection(selection, PasteHandler.class);
  45         if (handler != null) {
  46
  47                 try {
  48
  49                     Simantics.getSession().markUndoPoint();
  50                         IRunnableWithProgress op = pasteResourceFromClipboard(handler);
  51
  52                         Shell shell = HandlerUtil.getActiveShell(event);
  53                         new ProgressMonitorDialog(shell).run(true, true, op);
  54
  55                 } catch (InvocationTargetException e) {
  56                         Throwable t = e.getCause();
  57                         if (t != null) {
  58                                 ExceptionUtils.logAndShowError("Paste Failed", t.getMessage(), e);
  59                         } else {
  60                                 ExceptionUtils.logAndShowError("Paste Failed", "Paste failed for unknown reason.", e);
  61                         }
  62                 } catch (InterruptedException e) {
  63                         ErrorLogger.defaultLogError(e);
  64                 }
  65
  66         }
  67         return null;
  68     }
  69
  70     public static IRunnableWithProgress pasteResourceFromClipboard(final PasteHandler handler) {
  71
  72         IRunnableWithProgress op = new IRunnableWithProgress() {
  73
  74                         @Override
  75                         public void run(IProgressMonitor monitor) throws InvocationTargetException,
  76                         InterruptedException {
  77                                 SubMonitor progress = SubMonitor.convert(monitor, 100);
  78                                 try {
  79                                         progress.beginTask("Copying", 100);
  80                                         progress.worked(50);
  81                                         progress.subTask("Please wait..");
  82                             handler.pasteFromClipboard(Simantics.getClipboard());
  83                                 } catch (Exception e) {
  84                                         throw new InvocationTargetException(e);
  85                                 } finally {
  86                                         monitor.done();
  87                                 }
  88                         }
  89                 };
  90                 return op;
  91
  92     }
  93
  94     public static void pasteResourceFromClipboardWithoutMonitor (final PasteHandler handler) {
  95         try {
  96                 handler.pasteFromClipboard(Simantics.getClipboard());
  97                 } catch (DatabaseException e) {
  98                         try {
  99                                 throw new InvocationTargetException(e);
 100                         } catch (InvocationTargetException e1) {
 101                                 e1.getCause().printStackTrace();
 102                         }
 103                         e.printStackTrace();
 104                 }
 105     }
 106
 107     public static <T> T getPasteHandlerFromResource (Resource resource, Class<T> assignableFrom) {
 108
 109     try {
 110         return Simantics.getSession().syncRequest(new Adapter<T>(resource, assignableFrom));
 111     } catch (DatabaseException e) {
 112         Logger.defaultLogError(e);
 113         return null;
 114     }
 115     }
 116 }
 117