gerrit.simantics Code Review - simantics/platform.git/blob

   1 package org.simantics.modeling.ui.diagramEditor;
   2
   3 import java.util.ArrayList;
   4 import java.util.Collection;
   5 import java.util.Collections;
   6 import java.util.Comparator;
   7 import java.util.List;
   8 import java.util.Map;
   9 import java.util.Set;
  10 import java.util.TreeMap;
  11 import java.util.function.Consumer;
  12
  13 import org.eclipse.jface.window.Window;
  14 import org.eclipse.swt.widgets.Display;
  15 import org.eclipse.swt.widgets.Shell;
  16 import org.eclipse.ui.IEditorPart;
  17 import org.simantics.Simantics;
  18 import org.simantics.databoard.util.URIStringUtils;
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.common.NamedResource;
  22 import org.simantics.db.common.request.ReadRequest;
  23 import org.simantics.db.common.utils.NameUtils;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.db.layer0.variable.RVI;
  26 import org.simantics.db.layer0.variable.Variable;
  27 import org.simantics.db.layer0.variable.Variables;
  28 import org.simantics.diagram.content.ConnectionUtil;
  29 import org.simantics.diagram.flag.FlagUtil;
  30 import org.simantics.diagram.stubs.DiagramResource;
  31 import org.simantics.g2d.canvas.ICanvasContext;
  32 import org.simantics.g2d.diagram.DiagramHints;
  33 import org.simantics.layer0.Layer0;
  34 import org.simantics.modeling.ComponentUtils;
  35 import org.simantics.modeling.ModelingResources;
  36 import org.simantics.modeling.actions.NavigateToTarget;
  37 import org.simantics.modeling.actions.NavigationTargetChooserDialog;
  38 import org.simantics.modeling.ui.Activator;
  39 import org.simantics.structural.stubs.StructuralResource2;
  40 import org.simantics.ui.utils.ResourceAdaptionUtils;
  41 import org.simantics.ui.workbench.editor.AbstractResourceEditorAdapter;
  42 import org.simantics.utils.datastructures.MapSet;
  43 import org.simantics.utils.datastructures.Pair;
  44 import org.simantics.utils.strings.AlphanumComparator;
  45 import org.simantics.utils.strings.EString;
  46 import org.simantics.utils.threads.SWTThread;
  47 import org.simantics.utils.threads.ThreadUtils;
  48 import org.simantics.utils.ui.AdaptionUtils;
  49 import org.simantics.utils.ui.workbench.WorkbenchUtils;
  50 import org.slf4j.Logger;
  51 import org.slf4j.LoggerFactory;
  52
  53 /**
  54  * @author Tuukka Lehtonen
  55  */
  56 public class OpenDiagramFromComponentAdapter extends AbstractResourceEditorAdapter {
  57
  58     private static final Logger LOGGER = LoggerFactory.getLogger(OpenDiagramFromComponentAdapter.class);
  59
  60     private static final String EDITOR_ID = "org.simantics.modeling.ui.diagramEditor"; //$NON-NLS-1$
  61
  62     public OpenDiagramFromComponentAdapter() {
  63         super(Messages.OpenDiagramFromComponentAdapter_OpenDiagramContainingComponent, Activator.SYMBOL_ICON);
  64     }
  65
  66     @Override
  67     public boolean canHandle(ReadGraph graph, Object input) throws DatabaseException {
  68         Pair<Resource, String> p = tryGetResource(graph, input);
  69         if (p == null)
  70             return false;
  71         Variable v = AdaptionUtils.adaptToSingle(input, Variable.class);
  72         Collection<Runnable> rs = tryFindDiagram(graph, p.first, v, p.second);
  73         return !rs.isEmpty();
  74     }
  75
  76     private Pair<Resource, String> tryGetResource(ReadGraph graph, Object input) throws DatabaseException {
  77         Resource r = ResourceAdaptionUtils.toSingleResource(input);
  78         if (r != null)
  79             return Pair.make(r, ""); //$NON-NLS-1$
  80         Variable v = AdaptionUtils.adaptToSingle(input, Variable.class);
  81         return findResource(graph, v);
  82     }
  83
  84     private Pair<Resource, String> findResource(ReadGraph graph, Variable v) throws DatabaseException {
  85         List<String> path = null;
  86         while (v != null) {
  87             Resource r = v.getPossibleRepresents(graph);
  88             if (r != null) {
  89                 String rvi = ""; //$NON-NLS-1$
  90                 if (path != null) {
  91                     int pathLength = path.size();
  92                     for (int i = 0; i < pathLength; i++)
  93                         path.set(i, URIStringUtils.escape(path.get(i)));
  94                     Collections.reverse(path);
  95                     rvi = EString.implode(path, "/"); //$NON-NLS-1$
  96                 }
  97                 return Pair.make(r, rvi);
  98             }
  99             if (path == null)
 100                 path = new ArrayList<>(2);
 101             path.add( v.getName(graph) );
 102             v = v.browsePossible(graph, "."); //$NON-NLS-1$
 103         }
 104         return null;
 105     }
 106
 107     @Override
 108     public void openEditor(final Object input) throws Exception {
 109         final Display d = Display.getCurrent();
 110         if (d == null)
 111             return;
 112
 113         Simantics.getSession().syncRequest(new ReadRequest() {
 114             @Override
 115             public void run(ReadGraph graph) throws DatabaseException {
 116                 Pair<Resource, String> r = tryGetResource(graph, input);
 117                 if (r == null)
 118                     return;
 119
 120                 Variable v = AdaptionUtils.adaptToSingle(input, Variable.class);
 121
 122                 if (LOGGER.isDebugEnabled()) {
 123                     LOGGER.debug(getClass().getSimpleName() + ".openEditor: input's nearest parent resource URI: " + NameUtils.getURIOrSafeNameInternal(graph, r.first)); //$NON-NLS-1$
 124                     LOGGER.debug(getClass().getSimpleName() + ".openEditor: input's nearest parent RVI: " + r.second); //$NON-NLS-1$
 125                     LOGGER.debug(getClass().getSimpleName() + ".openEditor: input variable URI: " + (v != null ? v.getURI(graph) : "null")); //$NON-NLS-1$ //$NON-NLS-2$
 126                 }
 127
 128                 final Collection<Runnable> rs = tryFindDiagram(graph, r.first, v, r.second);
 129                 if (rs.isEmpty())
 130                     return;
 131
 132                 SWTThread.getThreadAccess(d).asyncExec(() -> rs.forEach(Runnable::run));
 133             }
 134         });
 135     }
 136
 137     private Collection<Runnable> tryFindDiagram(ReadGraph g, Resource component, Variable variable, String rviFromComponent) throws DatabaseException {
 138         try {
 139             return findDiagram(g, component, variable, rviFromComponent);
 140         } catch (DatabaseException e) {
 141             return Collections.emptyList();
 142         }
 143     }
 144
 145     private Collection<Runnable> findDiagram(ReadGraph g, Resource component, Variable variable, String rviFromComponent) throws DatabaseException {
 146         Layer0 l0 = Layer0.getInstance(g);
 147         StructuralResource2 STR = StructuralResource2.getInstance(g);
 148         ModelingResources MOD = ModelingResources.getInstance(g);
 149
 150         if (g.isInstanceOf(component, STR.Component)) {
 151             Collection<Runnable> result = new ArrayList<>(1);
 152
 153             Resource composite = g.getSingleObject(component, l0.PartOf);
 154             Resource diagram = ComponentUtils.getPossibleCompositeDiagram(g, composite);
 155
 156             if (LOGGER.isDebugEnabled()) {
 157                 LOGGER.debug(getClass().getSimpleName() + ".findDiagram: component: " + NameUtils.getURIOrSafeNameInternal(g, component)); //$NON-NLS-1$
 158                 LOGGER.debug(getClass().getSimpleName() + ".findDiagram: composite: " + NameUtils.getURIOrSafeNameInternal(g, composite)); //$NON-NLS-1$
 159             }
 160
 161             Collection<Resource> referenceElements = diagram == null ? g.getObjects(component, MOD.HasParentComponent_Inverse) : Collections.<Resource>emptyList();
 162             if (LOGGER.isDebugEnabled()) {
 163                 LOGGER.debug(getClass().getSimpleName() + ".findDiagram: diagram: " + NameUtils.getURIOrSafeNameInternal(g, diagram)); //$NON-NLS-1$
 164                 LOGGER.debug(getClass().getSimpleName() + ".findDiagram: referenceElements: " + referenceElements.size()); //$NON-NLS-1$
 165                 for (Object object : referenceElements)
 166                     LOGGER.debug("\t" + NameUtils.getURIOrSafeNameInternal(g, (Resource) object)); //$NON-NLS-1$
 167             }
 168             if (diagram == null && referenceElements.isEmpty())
 169                 return Collections.emptyList();
 170
 171             Variable compositeVariable = Variables.getPossibleVariable(g, composite);
 172             if (compositeVariable == null)
 173                 return Collections.emptyList();
 174             final Resource indexRoot = Variables.getPossibleIndexRoot(g, compositeVariable);
 175             if (indexRoot == null)
 176                 return Collections.emptyList();
 177             if (LOGGER.isDebugEnabled())
 178                 LOGGER.debug(getClass().getSimpleName() + ".findDiagram: Model: " + indexRoot); //$NON-NLS-1$
 179
 180             if (diagram != null) {
 181                 if(OpenDiagramFromConfigurationAdapter.isLocked(g, diagram))
 182                     return Collections.emptyList();
 183
 184                 RVI rvi = null;
 185                 boolean allowNullRvi = false;
 186                 if (variable != null) {
 187                     // Get proper RVI from variable if it exists.
 188                     Variable context = Variables.getPossibleContext(g, variable);
 189                     if (context != null) {
 190                         // We want the composite's RVI, not the component in it.
 191                         Variable parent = findFirstParentComposite(g, variable);
 192                         if (parent != null) {
 193                             rvi = parent.getPossibleRVI(g);
 194                             if (LOGGER.isDebugEnabled())
 195                                 LOGGER.debug(getClass().getSimpleName() + ".findDiagram: resolved RVI: " + rvi); //$NON-NLS-1$
 196                         }
 197                     }
 198                 } else {
 199                     allowNullRvi = true;
 200                     rvi = compositeVariable.getPossibleRVI(g);
 201                     if (LOGGER.isDebugEnabled())
 202                         LOGGER.debug(getClass().getSimpleName() + ".findDiagram: resolved RVI from resource path: " + rvi); //$NON-NLS-1$
 203                 }
 204                 if (rvi == null && !allowNullRvi)
 205                     return Collections.emptyList();
 206
 207                 Collection<Object> selectedObjects = findElementObjects(g, component, rviFromComponent);
 208                 if (LOGGER.isDebugEnabled()) {
 209                     LOGGER.debug(getClass().getSimpleName() + ".findDiagram: selected objects: " + selectedObjects.size()); //$NON-NLS-1$
 210                     for (Object object : selectedObjects)
 211                         LOGGER.debug("\t" + NameUtils.getURIOrSafeNameInternal(g, (Resource) object)); //$NON-NLS-1$
 212                 }
 213                 // Prevent diagram from opening if there's nothing to select
 214                 // on the diagram based on the received input.
 215                 if (!selectedObjects.isEmpty())
 216                     result.add( NavigateToTarget.editorActivator(EDITOR_ID, diagram, indexRoot, rvi, editorActivationCallback(selectedObjects)) );
 217             } else {
 218                 final MapSet<NamedResource, Resource> referencingDiagrams = listReferenceDiagrams(g, referenceElements);
 219                 final Set<NamedResource> diagrams = referencingDiagrams.getKeys();
 220                 if (LOGGER.isDebugEnabled()) {
 221                     LOGGER.debug(getClass().getSimpleName() + ".findDiagram: selected objects: " + diagrams.size()); //$NON-NLS-1$
 222                     for (NamedResource d : diagrams) {
 223                         LOGGER.debug("\t" + NameUtils.getURIOrSafeNameInternal(g, d.getResource()) + ":"); //$NON-NLS-1$ //$NON-NLS-2$
 224                         for (Resource referenceElement : referencingDiagrams.getValues(d)) {
 225                             LOGGER.debug("\t\t" + NameUtils.getURIOrSafeNameInternal(g, referenceElement)); //$NON-NLS-1$
 226                         }
 227                     }
 228                 }
 229                 switch (diagrams.size()) {
 230                 case 0:
 231                     // Prevent diagram from opening if there's nothing to select
 232                     // on the diagram based on the received input.
 233                     break;
 234
 235                 case 1:
 236                     // Open the one diagram straight away.
 237                     NamedResource singleDiagram = diagrams.iterator().next();
 238                     RVI rvi = getDiagramCompositeRvi(g, singleDiagram.getResource());
 239                     if (rvi != null) {
 240                         Collection<Resource> selectedObjects = referencingDiagrams.getValues(singleDiagram);
 241                         result.add( NavigateToTarget.editorActivator(EDITOR_ID, singleDiagram.getResource(), indexRoot, rvi, editorActivationCallback(selectedObjects)) );
 242                     }
 243                     break;
 244
 245                 default:
 246                     final Map<NamedResource, RVI> diagramToRvi = new TreeMap<>(COMPARATOR);
 247                     for (NamedResource d : diagrams) {
 248                         RVI rvi2 = getDiagramCompositeRvi(g, d.getResource());
 249                         if (rvi2 != null)
 250                             diagramToRvi.put(d, rvi2);
 251                     }
 252                     result.add(() -> {
 253                         NamedResource selected = queryTarget(WorkbenchUtils.getActiveWorkbenchWindowShell(), diagramToRvi.keySet());
 254                         if (selected != null) {
 255                             Collection<Resource> selectedObjects = referencingDiagrams.getValues(selected);
 256                             RVI drvi = diagramToRvi.get(selected);
 257                             NavigateToTarget.editorActivator(EDITOR_ID, selected.getResource(), indexRoot, drvi, editorActivationCallback(selectedObjects)).run();
 258                         }
 259                     });
 260                     break;
 261                 }
 262             }
 263             return result;
 264         }
 265
 266         // Nothing to open
 267         return Collections.emptyList();
 268     }
 269
 270     private RVI getDiagramCompositeRvi(ReadGraph graph, Resource diagram) throws DatabaseException {
 271         ModelingResources MOD = ModelingResources.getInstance(graph);
 272         Resource composite = graph.getPossibleObject(diagram, MOD.DiagramToComposite);
 273         if (composite == null)
 274             return null;
 275         Variable v = Variables.getPossibleVariable(graph, composite);
 276         return v != null ? v.getPossibleRVI(graph) : null;
 277     }
 278
 279     private Consumer<IEditorPart> editorActivationCallback(final Collection<? extends Object> selectedObjects) {
 280         return part -> {
 281             final ICanvasContext openedCanvas = (ICanvasContext) part.getAdapter(ICanvasContext.class);
 282             assert openedCanvas != null;
 283             // CanvasContext-wide denial of initial zoom-to-fit on diagram open.
 284             openedCanvas.getDefaultHintContext().setHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT, Boolean.FALSE);
 285             ThreadUtils.asyncExec(openedCanvas.getThreadAccess(),
 286                     NavigateToTarget.elementSelectorZoomer(openedCanvas, selectedObjects, false));
 287         };
 288     }
 289
 290     private Variable findFirstParentComposite(ReadGraph graph, Variable v) throws DatabaseException {
 291         Variable first = findFirstWithRepresentation(graph, v);
 292         if (first == null)
 293             return null;
 294         Variable parent = first.getParent(graph);
 295         return parent;
 296     }
 297
 298     private Variable findFirstWithRepresentation(ReadGraph graph, Variable v) throws DatabaseException {
 299         while (v != null) {
 300             Resource represents = v.getPossibleRepresents(graph);
 301             if (LOGGER.isDebugEnabled())
 302                 LOGGER.debug(v.getURI(graph) + " -> " + NameUtils.getURIOrSafeNameInternal(graph, represents)); //$NON-NLS-1$
 303             if (represents != null)
 304                 return v;
 305             v = v.getParent(graph);
 306         }
 307         return null;
 308     }
 309
 310     public static Collection<Object> findElementObjects(ReadGraph g, Resource component, String rviFromComponent) throws DatabaseException {
 311         DiagramResource DIA = DiagramResource.getInstance(g);
 312         ModelingResources MOD = ModelingResources.getInstance(g);
 313         final Collection<Object> selectedObjects = new ArrayList<>(4);
 314         if (rviFromComponent.isEmpty()) {
 315             // The selected objects are configuration objects
 316             for (Resource element : g.getObjects(component, MOD.ComponentToElement)) {
 317                 if (g.isInstanceOf(element, DIA.Flag) && FlagUtil.isExternal(g, element)) {
 318                     // Use external flag primarily if one exists in the correspondences
 319                     selectedObjects.clear();
 320                     selectedObjects.add(element);
 321                     break;
 322                 } else if (g.isInstanceOf(element, DIA.RouteGraphConnection)) {
 323                     selectedObjects.add(element);
 324                 } else if (g.isInstanceOf(element, DIA.Connection)) {
 325                     // Okay, we need to find a part of the connection
 326                     ConnectionUtil cu = new ConnectionUtil(g);
 327                     cu.gatherConnectionParts(element, selectedObjects);
 328                 } else {
 329                     selectedObjects.add(element);
 330                 }
 331             }
 332         }
 333         return selectedObjects;
 334     }
 335
 336     protected MapSet<NamedResource, Resource> listReferenceDiagrams(ReadGraph graph, Collection<Resource> referenceElements) throws DatabaseException {
 337         ModelingResources MOD = ModelingResources.getInstance(graph);
 338
 339         // Make result diagram ordering stable and logical by using our own comparator.
 340         MapSet<NamedResource, Resource> diagrams = new MapSet.Tree<>(COMPARATOR);
 341
 342         for (Resource referenceElement : referenceElements) {
 343             final Resource diagram = NavigateToTarget.getOwnerList(graph, referenceElement);
 344             if (diagram == null)
 345                 continue;
 346             Resource composite = graph.getPossibleObject(diagram, MOD.DiagramToComposite);
 347             if (composite == null)
 348                 continue;
 349             Variable v = Variables.getPossibleVariable(graph, composite);
 350             if (v == null)
 351                 continue;
 352
 353             String rvi = URIStringUtils.unescape( Variables.getRVI(graph, v) );
 354
 355             diagrams.add(new NamedResource(rvi, diagram), referenceElement);
 356         }
 357
 358         return diagrams;
 359     }
 360
 361     private static final Comparator<? super NamedResource> COMPARATOR =
 362             (o1, o2) -> AlphanumComparator.CASE_INSENSITIVE_COMPARATOR.compare(o1.getName(), o2.getName());
 363
 364     protected NamedResource queryTarget(final Shell parentShell, Collection<NamedResource> options) {
 365         NavigationTargetChooserDialog dialog = new NavigationTargetChooserDialog(
 366                 parentShell, options.toArray(new NamedResource[options.size()]),
 367                 Messages.OpenDiagramFromComponentAdapter_ChooseDiagramComponetReference,
 368                 Messages.OpenDiagramFromComponentAdapter_SelectSingleDiagramfromList);
 369         return dialog.open() != Window.OK ? null : dialog.getSelection();
 370     }
 371
 372 }