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/**********************************************************************
 * Copyright (c) 2004 QNX Software Systems and others.
 * All rights reserved.   This program and the accompanying materials
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors: 
 * QNX Software Systems - Initial API and implementation
 ***********************************************************************/
package org.eclipse.cdt.debug.internal.ui.actions;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.ErrorDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.actions.ActionDelegate;

/**
 * The delegate of the "Toggle Function Breakpoint" action.
 */
public class ManageFunctionBreakpointActionDelegate extends ActionDelegate implements IObjectActionDelegate {

	private ToggleBreakpointAdapter fBreakpointAdapter;

	private IWorkbenchPart fTargetPart;

	private ISelection fSelection;

	public ManageFunctionBreakpointActionDelegate() {
		fBreakpointAdapter = new ToggleBreakpointAdapter();
	}

	/*(non-Javadoc)
	 * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart)
	 */
	public void setActivePart( IAction action, IWorkbenchPart targetPart ) {
		fTargetPart = targetPart;
	}

	/*(non-Javadoc)
	 * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
	 */
	public void run( IAction action ) {
		try {
			getBreakpointAdapter().toggleMethodBreakpoints( getTargetPart(), getSelection() );
		}
		catch( CoreException e ) {
			ErrorDialog.openError( getTargetPart().getSite().getShell(),
								   ActionMessages.getString( "ManageFunctionBreakpointActionDelegate.Error_1" ), //$NON-NLS-1$
					   			   ActionMessages.getString( "ManageFunctionBreakpointActionDelegate.Operation_failed_1" ), //$NON-NLS-1$
					   			   e.getStatus() );
		}
	}

	/*(non-Javadoc)
	 * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
	 */
	public void selectionChanged( IAction action, ISelection selection ) {
		setSelection( selection );
		action.setEnabled( getBreakpointAdapter().canToggleMethodBreakpoints( getTargetPart(), getSelection() ) );
	}

	private IWorkbenchPart getTargetPart() {
		return fTargetPart;
	}

	private ISelection getSelection() {
		return fSelection;
	}

	private ToggleBreakpointAdapter getBreakpointAdapter() {
		return fBreakpointAdapter;
	}

	private void setSelection( ISelection selection ) {
		fSelection = selection;
	}
}

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