eu.geclipse.aws.ec2.ui.actions.EditAMIAttributesAction.java Source code

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Here is the source code for eu.geclipse.aws.ec2.ui.actions.EditAMIAttributesAction.java

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/*****************************************************************************
 * Copyright (c) 2008 g-Eclipse Consortium 
 * 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
 *
 * Initial development of the original code was made for the
 * g-Eclipse project founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * Contributors:
 *    Moritz Post - initial API and implementation
 *****************************************************************************/

package eu.geclipse.aws.ec2.ui.actions;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.ui.IObjectActionDelegate;

import eu.geclipse.aws.ec2.EC2AMIImage;
import eu.geclipse.aws.ec2.ui.wizards.EditAMIAttributesWizard;

/**
 * This {@link IObjectActionDelegate} opens an {@link EditAMIAttributesWizard},
 * which allows to set the attribute values.
 * 
 * @author Moritz Post
 */
public class EditAMIAttributesAction extends AbstractAWSProjectAction {

    /** The list of selected AMIs. This list should contain only one element. */
    private List<EC2AMIImage> amiList;

    /**
     * This constructor initializes the objects fields.
     */
    public EditAMIAttributesAction() {
        this.amiList = new ArrayList<EC2AMIImage>();
    }

    @Override
    public void run(final IAction action) {
        if (getAwsVo() != null && this.amiList.size() == 1) {
            EditAMIAttributesWizard wizard = new EditAMIAttributesWizard(getAwsVo(), this.amiList.get(0));

            WizardDialog wizardDialog = new WizardDialog(getWorkbenchPart().getSite().getShell(), wizard);
            wizardDialog.open();
        }
    }

    public void selectionChanged(final IAction action, final ISelection selection) {
        boolean enable = false;
        this.amiList.clear();

        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structuredSelection = (IStructuredSelection) selection;
            for (Object element : structuredSelection.toList()) {
                if (element instanceof EC2AMIImage) {
                    EC2AMIImage ami = (EC2AMIImage) element;
                    this.amiList.add(ami);
                }
            }
        }
        if (this.amiList.size() == 1) {
            enable = true;
            extractAWSVoFromGridElement(this.amiList.get(0));
        }
        action.setEnabled(enable);

    }

}