bundles/org.simantics.workbench.search.impl/src/org/simantics/workbench/search/impl/SearchServiceFactory.java

   1 package org.simantics.workbench.search.impl;
   2
   3
   4 import org.eclipse.core.expressions.Expression;
   5 import org.eclipse.ui.IWorkbench;
   6 import org.eclipse.ui.IWorkbenchPartSite;
   7 import org.eclipse.ui.IWorkbenchWindow;
   8 import org.eclipse.ui.internal.expressions.ActivePartExpression;
   9 import org.eclipse.ui.internal.expressions.WorkbenchWindowExpression;
  10 import org.eclipse.ui.internal.services.IWorkbenchLocationService;
  11 import org.eclipse.ui.services.AbstractServiceFactory;
  12 import org.eclipse.ui.services.IServiceLocator;
  13 import org.simantics.workbench.search.ISearchService;
  14
  15 @SuppressWarnings("restriction")
  16 public class SearchServiceFactory extends AbstractServiceFactory {
  17
  18         @SuppressWarnings("rawtypes")
  19         @Override
  20         public Object create(Class serviceInterface, IServiceLocator parentLocator,
  21                         IServiceLocator locator) {
  22                 if (!ISearchService.class.equals(serviceInterface))
  23                         return null;
  24                 IWorkbenchLocationService wls = (IWorkbenchLocationService) locator
  25                                 .getService(IWorkbenchLocationService.class);
  26                 final IWorkbench wb = wls.getWorkbench();
  27                 if (wb == null) {
  28                         return null;
  29                 }
  30
  31                 @SuppressWarnings("unchecked")
  32                 Object parent = parentLocator.getService(serviceInterface);
  33                 if (parent == null) {
  34                         return new SearchServiceImpl();
  35                 }
  36                 final IWorkbenchWindow window = wls.getWorkbenchWindow();
  37                 final IWorkbenchPartSite site = wls.getPartSite();
  38                 if (site == null) {
  39                         Expression exp = new WorkbenchWindowExpression(window);
  40                         return new SlaveSearchService((ISearchService)parent, exp);
  41                 }
  42                 if (parent instanceof SlaveSearchService) {
  43                         Expression parentExp = ((SlaveSearchService) parent).getDefaultExpression();
  44                         return new NestableSearchService((ISearchService)parent, parentExp);
  45                 }
  46
  47                 Expression exp = new ActivePartExpression(site.getPart());
  48                 return new SlaveSearchService((ISearchService)parent, exp);
  49         }
  50
  51 }