1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.g2d.diagram.handler.impl;
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14 import java.util.Collection;
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15 import java.util.HashMap;
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16 import java.util.Map;
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18 import org.simantics.g2d.diagram.IDiagram;
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19 import org.simantics.g2d.diagram.handler.LifeCycle;
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20 import org.simantics.g2d.diagram.handler.TransactionContext;
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21 import org.simantics.g2d.element.IElement;
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22 import org.simantics.utils.datastructures.ListenerList;
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25 * @author Toni Kalajainen
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27 public class TransactionContextImpl implements TransactionContext, LifeCycle {
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29 Map<IDiagram, ListenerList<TransactionListener>> list =
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30 new HashMap<IDiagram, ListenerList<TransactionListener>>();
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33 public void addTransactionListener(IDiagram d, TransactionListener l) {
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34 ListenerList<TransactionListener> ll = list.get(d);
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36 ll = new ListenerList<TransactionListener>(TransactionListener.class);
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43 public void removeTransactionListener(IDiagram d, TransactionListener l) {
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44 ListenerList<TransactionListener> ll = list.get(d);
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45 if (ll==null) return;
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50 public void onDiagramDestroyed(IDiagram diagram) {
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54 public void onDiagramDisposed(IDiagram diagram) {
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55 list.remove(diagram);
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59 public void onDiagramCreated(IDiagram diagram) {
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63 // public void finishTransaction(IDiagram d, Transaction t, ChangeSet cs) {
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64 // ListenerList<TransactionListener> ll = list.get(d);
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65 // if (ll==null) return;
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66 // for (TransactionListener l : ll.getListeners())
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67 // l.transactionFinished(d, t, cs);
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71 // public void startTransaction(IDiagram d, Transaction t) {
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72 // ListenerList<TransactionListener> ll = list.get(d);
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73 // if (ll==null) return;
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74 // for (TransactionListener l : ll.getListeners())
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75 // l.transactionStarted(d, t);
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79 public void onDiagramLoaded(IDiagram diagram, Collection<IElement> initialElements) {
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83 public Transaction startTransaction(IDiagram d, TransactionType type) {
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84 Transaction t = new Transaction.Impl(type);
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85 ListenerList<TransactionListener> ll = list.get(d);
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87 for (TransactionListener l : ll.getListeners())
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88 l.transactionStarted(d, t);
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93 public void finishTransaction(IDiagram d, Transaction t) {
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94 ListenerList<TransactionListener> ll = list.get(d);
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97 for (TransactionListener l : ll.getListeners())
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98 l.transactionFinished(d, t);
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102 // public void cancelTransaction(IDiagram d, Transaction t) {
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103 // ListenerList<TransactionListener> ll = list.get(d);
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106 // for (TransactionListener l : ll.getListeners())
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107 // l.transactionCanceled(d, t);
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