eu.numberfour.n4js.ui.workingsets.WorkingSetEditWizard.java Source code

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Here is the source code for eu.numberfour.n4js.ui.workingsets.WorkingSetEditWizard.java

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/**
 * Copyright (c) 2016 NumberFour AG.
 * 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
 *
 * Contributors:
 *   NumberFour AG - Initial API and implementation
 */
package eu.numberfour.n4js.ui.workingsets;

import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchWizard;

import com.google.common.base.Optional;

/**
 * Base wizard implementation for editing an existing working set.
 */
public abstract class WorkingSetEditWizard extends WorkingSetNewWizard implements IWorkbenchWizard {

    private WorkingSet editedWorkingSet;

    @Override
    public void init(final IWorkbench workbench, final IStructuredSelection selection) {
        if (selection != null && !selection.isEmpty()) {
            final Object firstElement = selection.getFirstElement();
            if (firstElement instanceof WorkingSet) {
                editedWorkingSet = (WorkingSet) firstElement;
            }
        }
    }

    /**
     * Returns with the edited working set if it was initialized from the actual selection.
     *
     * @return the edited working set. Could be {@link Optional#absent() absent}.
     */
    protected Optional<WorkingSet> getEditedWorkingSet() {
        return Optional.fromNullable(editedWorkingSet);
    }

}