org.simantics.district.network.ui/src/org/simantics/district/network/ui/contributions/SetFocusableHandler.java

   1
   2 package org.simantics.district.network.ui.contributions;
   3
   4 import java.util.Collection;
   5
   6 import javax.inject.Named;
   7
   8 import org.eclipse.e4.core.contexts.IEclipseContext;
   9 import org.eclipse.e4.core.di.annotations.CanExecute;
  10 import org.eclipse.e4.core.di.annotations.Execute;
  11 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  12 import org.eclipse.e4.ui.services.IServiceConstants;
  13 import org.eclipse.jface.viewers.ISelection;
  14 import org.eclipse.ui.IEditorPart;
  15 import org.simantics.g2d.diagram.DiagramHints;
  16 import org.simantics.g2d.diagram.IDiagram;
  17 import org.simantics.g2d.element.IElement;
  18 import org.simantics.g2d.element.handler.ElementLayers;
  19 import org.simantics.g2d.layers.ILayer;
  20 import org.simantics.g2d.layers.ILayers;
  21 import org.simantics.ui.workbench.e4.E4WorkbenchUtils;
  22
  23 public class SetFocusableHandler {
  24
  25     @CanExecute
  26     public boolean canExecute(IEclipseContext popupContext, @Named(IServiceConstants.ACTIVE_SELECTION) ISelection selection) {
  27         @SuppressWarnings("unchecked")
  28         Collection<IElement> elements = (Collection<IElement>) popupContext.get(SetFocusableDynamicMenuContribution.FOCUSABLE_ELEMENTS);
  29         return elements != null && !elements.isEmpty();
  30     }
  31
  32     @Execute
  33     public void execute(IEclipseContext popupContext, @Named(IServiceConstants.ACTIVE_SELECTION) ISelection selection, @Named(IServiceConstants.ACTIVE_PART) MPart activePart) {
  34         IEditorPart editorPart = E4WorkbenchUtils.getActiveIEditorPart(activePart);
  35
  36         IDiagram diagram = editorPart.getAdapter(IDiagram.class);
  37         if (diagram == null)
  38             return;
  39
  40         @SuppressWarnings("unchecked")
  41         Collection<IElement> selectedElements = (Collection<IElement>) popupContext.get(SetFocusableDynamicMenuContribution.FOCUSABLE_ELEMENTS);
  42
  43         ILayers le = diagram.getHint(DiagramHints.KEY_LAYERS);
  44         for (IElement elem : selectedElements) {
  45             ElementLayers el = elem.getElementClass().getAtMostOneItemOfClass(ElementLayers.class);
  46             for (ILayer layer : le.getVisibleLayers()) {
  47                 boolean focusable = el.isFocusable(elem, layer);
  48                 el.setFocusability(elem, layer, !focusable);
  49             }
  50         }
  51     }
  52
  53 }