1 /*******************************************************************************
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2 * Copyright (c) 2007, 2012 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.browsing.ui.swt.widgets;
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14 import java.util.ArrayList;
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15 import java.util.Collection;
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16 import java.util.Collections;
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17 import java.util.HashSet;
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18 import java.util.Map;
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19 import java.util.Set;
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21 import org.eclipse.swt.widgets.Composite;
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22 import org.eclipse.ui.IWorkbenchSite;
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23 import org.simantics.browsing.ui.NodeContext;
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24 import org.simantics.browsing.ui.common.ErrorLogger;
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25 import org.simantics.browsing.ui.model.InvalidContribution;
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26 import org.simantics.browsing.ui.model.browsecontexts.BrowseContext;
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27 import org.simantics.browsing.ui.model.dnd.DndBrowseContext;
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28 import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;
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29 import org.simantics.db.ReadGraph;
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30 import org.simantics.db.Resource;
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31 import org.simantics.db.common.request.ReadRequest;
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32 import org.simantics.db.exception.DatabaseException;
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33 import org.simantics.db.exception.ResourceNotFoundException;
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34 import org.simantics.db.procedure.Procedure;
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35 import org.simantics.db.request.Read;
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36 import org.simantics.ui.SimanticsUI;
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37 import org.simantics.utils.ui.ExceptionUtils;
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39 public class ModelBrowser extends GraphExplorerComposite {
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41 volatile DndBrowseContext dndBrowseContext;
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43 private static final String CONTEXT_MENU_ID = "#GraphExplorerPopup";
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45 protected Set<String> propertyBrowseContexts = Collections.emptySet();
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47 protected boolean hideComparatorSelector = false;
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48 protected boolean hideViewpointSelector = false;
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49 protected boolean hideFilter = false;
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52 protected String getContextMenuId() {
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53 if(contextMenuId != null) return contextMenuId;
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54 else return CONTEXT_MENU_ID;
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58 protected void createControls(Composite parent) {
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59 this.propertyBrowseContexts = loadBrowseContexts(getBrowseContexts());
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60 super.createControls(parent);
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63 protected static Set<String> loadBrowseContexts(final Set<String> browseContexts) {
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65 return SimanticsUI.getSession().syncRequest(new Read<Set<String>>() {
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67 public Set<String> perform(ReadGraph graph) throws DatabaseException {
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68 Collection<Resource> browseContextResources = new ArrayList<Resource>(browseContexts.size());
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69 for (String browseContext : browseContexts) {
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71 browseContextResources.add(graph.getResource(browseContext));
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72 } catch (ResourceNotFoundException e) {
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73 // Expected result, if no modelled contributions exist.
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74 //System.err.println("Didn't find " + browseContext + " while loading model browser.");
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75 } catch (DatabaseException e) {
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76 ExceptionUtils.logError("Didn't find " + browseContext + " while loading model browser.", e);
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79 Collection<Resource> allBrowseContextResources = BrowseContext.findSubcontexts(graph, browseContextResources);
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80 Set<String> result = new HashSet<String>();
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81 for (Resource r : allBrowseContextResources)
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82 result.add(graph.getURI(r));
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86 } catch (DatabaseException e) {
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87 ExceptionUtils.logAndShowError("Failed to load modeled browse contexts for property page, see exception for details.", e);
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88 return browseContexts;
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92 public ModelBrowser(final Set<String> _browseContexts, Map<String, Object> args, IWorkbenchSite site, Composite parent, WidgetSupport support, int style) {
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94 super(args, site, parent, support, style);
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96 setBrowseContexts(_browseContexts);
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98 // As long as these are not useful, don't shown them by default.
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99 this.hideComparatorSelector = true;
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100 this.hideViewpointSelector = true;
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102 SimanticsUI.getSession().asyncRequest(new ReadRequest() {
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104 public void run(ReadGraph graph) throws DatabaseException {
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105 ArrayList<Resource> browseContexts = new ArrayList<Resource>();
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106 for (String uri : _browseContexts) {
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107 Resource browseContext = graph.getPossibleResource(uri);
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108 if (browseContext != null)
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109 browseContexts.add(browseContext);
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112 dndBrowseContext = DndBrowseContext.create(graph, browseContexts);
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113 } catch (InvalidContribution e) {
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114 ErrorLogger.defaultLogError(e);
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121 protected void handleDrop(final Object data, final NodeContext target) {
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122 if (target == null)
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125 SimanticsUI.getSession().asyncRequest(new Read<Runnable>() {
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127 public Runnable perform(ReadGraph graph) throws DatabaseException {
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128 if (dndBrowseContext == null)
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130 return dndBrowseContext.getAction(graph, target, data);
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132 }, new Procedure<Runnable>() {
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134 public void execute(Runnable result) {
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135 if (result != null)
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140 public void exception(Throwable t) {
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141 ErrorLogger.defaultLogError(t);
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