bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/ExplorerMouseListenerImpl.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2012 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.browsing.ui.swt.widgets;
  13
  14 import org.eclipse.jface.viewers.IPostSelectionProvider;
  15 import org.eclipse.jface.viewers.ISelection;
  16 import org.simantics.browsing.ui.GraphExplorer;
  17 import org.simantics.browsing.ui.swt.widgets.impl.MouseListenerImpl;
  18 import org.simantics.db.WriteGraph;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.db.management.ISessionContext;
  21
  22 abstract public class ExplorerMouseListenerImpl<T> extends MouseListenerImpl<T> {
  23
  24         private GraphExplorer explorer = null;
  25         private ISelection selection;
  26
  27         public ExplorerMouseListenerImpl(ISessionContext context) {
  28                 super(context);
  29         }
  30
  31         void register(GraphExplorer explorer) {
  32                 this.explorer = explorer;
  33         }
  34
  35         public void doubleClick(WriteGraph graph, T input) throws DatabaseException {
  36
  37                 if(explorer == null) return;
  38
  39                 doubleClick(graph, input, selection);
  40
  41         }
  42
  43         @Override
  44         public void beforeApply(T input) {
  45
  46                 if(explorer == null) return;
  47
  48                 IPostSelectionProvider selectionProvider = (IPostSelectionProvider)explorer.getAdapter(IPostSelectionProvider.class);
  49                 selection = selectionProvider.getSelection();
  50
  51         }
  52
  53         abstract public void doubleClick(WriteGraph graph, T input, ISelection selection) throws DatabaseException;
  54
  55 }
  56