DropToFrameCommand


1   /*******************************************************************************
2    * Copyright (c) 2006, 2007 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  package org.eclipse.debug.internal.core.commands;
12  
13  import org.eclipse.core.runtime.CoreException;
14  import org.eclipse.core.runtime.IAdaptable;
15  import org.eclipse.debug.core.commands.IDropToFrameHandler;
16  import org.eclipse.debug.core.model.IDropToFrame;
17  
18  /**
19   * Default drop to frame command for the standard debug model.
20   * 
21   * @since 3.3
22   */
23  public class DropToFrameCommand extends StepCommand implements IDropToFrameHandler {
24  
25      protected Object   getTarget(Object   element) {
26          if (element instanceof IDropToFrame) {
27              return element;
28          } else if (element instanceof IAdaptable) {
29              return ((IAdaptable) element).getAdapter(IDropToFrame.class);
30          }
31          return null;
32      }
33  
34      /* (non-Javadoc)
35       * @see org.eclipse.debug.internal.core.commands.StepCommand#isSteppable(java.lang.Object)
36       */
37      protected boolean isSteppable(Object   target) throws CoreException {
38          return ((IDropToFrame)target).canDropToFrame();
39      }
40  
41      /* (non-Javadoc)
42       * @see org.eclipse.debug.internal.core.commands.StepCommand#step(java.lang.Object)
43       */
44      protected void step(Object   target) throws CoreException {
45          ((IDropToFrame)target).dropToFrame();
46      }
47  }
48

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