Package org.openhab.designer.ui.internal.views

Source Code of org.openhab.designer.ui.internal.views.ConfigNavigator

/**
* Copyright (c) 2010-2014, openHAB.org and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.openhab.designer.ui.internal.views;

import org.eclipse.core.resources.IResourceChangeEvent;
import org.eclipse.core.resources.IResourceChangeListener;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.navigator.CommonNavigator;
import org.openhab.designer.core.config.ConfigurationFolderProvider;
import org.openhab.designer.ui.internal.actions.SelectConfigFolderAction;

public class ConfigNavigator extends CommonNavigator {

  private IResourceChangeListener changeListener;

  @Override
  public void createPartControl(Composite aParent) {
    super.createPartControl(aParent);
    Action action = new SelectConfigFolderAction(getCommonViewer());
    IActionBars actionBars = getViewSite().getActionBars();
    IMenuManager dropDownMenu = actionBars.getMenuManager();
    IToolBarManager toolBar = actionBars.getToolBarManager();
    dropDownMenu.add(action);
    toolBar.add(action);
  }

  @Override
  protected Object getInitialInput() {
    changeListener = new IResourceChangeListener() {
      public void resourceChanged(IResourceChangeEvent event) {
        Display.getDefault().asyncExec(new Runnable() {
          public void run() {
            getCommonViewer().refresh();
          }
        });
      }
    };
    ResourcesPlugin.getWorkspace()
        .addResourceChangeListener(changeListener);

    try {
      return ConfigurationFolderProvider.getRootConfigurationFolder()
          .getProject();
    } catch (Exception e) {
      return null;
    }
  }

  @Override
  public void dispose() {
    super.dispose();
    ResourcesPlugin.getWorkspace().removeResourceChangeListener(
        changeListener);
    changeListener = null;
  }
}
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