SortChildNodes.java

   1 /*
   2  * Copyright (C) 2007-2012 Mathieu Baudier
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *         http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.argeo.jcr.ui.explorer.commands;
  17
  18 import org.argeo.jcr.ui.explorer.JcrExplorerPlugin;
  19 import org.argeo.jcr.ui.explorer.views.GenericJcrBrowser;
  20 import org.eclipse.core.commands.AbstractHandler;
  21 import org.eclipse.core.commands.Command;
  22 import org.eclipse.core.commands.ExecutionEvent;
  23 import org.eclipse.core.commands.ExecutionException;
  24 import org.eclipse.core.commands.State;
  25 import org.eclipse.ui.PlatformUI;
  26 import org.eclipse.ui.commands.ICommandService;
  27 import org.eclipse.ui.handlers.HandlerUtil;
  28
  29 /**
  30  * Change isSorted state of the JcrExplorer Browser
  31  */
  32 public class SortChildNodes extends AbstractHandler {
  33         public final static String ID = JcrExplorerPlugin.ID + ".sortChildNodes";
  34
  35         public Object execute(ExecutionEvent event) throws ExecutionException {
  36                 GenericJcrBrowser view = (GenericJcrBrowser) HandlerUtil
  37                                 .getActiveWorkbenchWindow(event).getActivePage()
  38                                 .findView(GenericJcrBrowser.ID);
  39
  40                 ICommandService service = (ICommandService) PlatformUI.getWorkbench()
  41                                 .getService(ICommandService.class);
  42                 Command command = service.getCommand(ID);
  43                 State state = command.getState(ID + ".toggleState");
  44
  45                 boolean wasSorted = (Boolean) state.getValue();
  46                 view.setSortChildNodes(!wasSorted);
  47                 state.setValue(!wasSorted);
  48                 return null;
  49         }
  50 }