com.emf4sw.ui.AbstractFileAction.java Source code

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Here is the source code for com.emf4sw.ui.AbstractFileAction.java

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/**
 * 
 * Copyright (c) 2009 L3i ( http://l3i.univ-larochelle.fr ).
 * 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.
 * 
 */
package com.emf4sw.ui;

import java.util.Iterator;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchPart;

/**
 * 
 * @author <a href="mailto:g.hillairet at gmail.com">Guillaume Hillairet</a>
 * @since 0.5.0
 */
public abstract class AbstractFileAction {

    private ISelection currentSelection;

    public AbstractFileAction() {
        super();
    }

    /**
     * {@inheritDoc}
     * 
     * @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction,
     *      org.eclipse.ui.IWorkbenchPart)
     */
    public void setActivePart(IAction action, IWorkbenchPart targetPart) {
    }

    /**
     * {@inheritDoc}
     * 
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action) {
        IStructuredSelection iss = (IStructuredSelection) currentSelection;
        for (Iterator<?> iterator = iss.iterator(); iterator.hasNext();) {
            try {
                transform((IFile) iterator.next());
            } catch (CoreException e) {
                throw new RuntimeException(e);
            }
        }
    }

    protected abstract void transform(IFile file) throws CoreException;

    /**
     * {@inheritDoc}
     * 
     * @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction,
     *      org.eclipse.jface.viewers.ISelection)
     */
    public void selectionChanged(IAction action, ISelection selection) {
        this.currentSelection = selection;
    }

}