/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.e4.ui.actions;
import static org.whole.lang.e4.ui.actions.IE4UIConstants.*;
import java.net.URL;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.jface.resource.ImageDescriptor;
import org.whole.lang.e4.ui.util.E4Utils;
import org.whole.lang.model.IEntity;
import org.whole.lang.ui.viewers.IEntityPartViewer;
/**
* @author Enrico Persiani
*/
public class ClearContentsAction extends AbstractE4Action {
public ClearContentsAction(IEclipseContext context) {
super(context, CLEAR_CONTENTS_LABEL);
try {
setImageDescriptor(ImageDescriptor.createFromURL(new URL(CLEAR_CONTENTS_URI)));
} catch (Exception e) {
}
}
@Override
public void run() {
IEntityPartViewer viewer = getContext().get(IEntityPartViewer.class);
viewer.setContents(null, createDefaultContents());
update();
}
@Override
public void update() {
IEntityPartViewer viewer = getContext().get(IEntityPartViewer.class);
setEnabled(viewer.hasContents());
}
protected IEntity createDefaultContents() {
return E4Utils.createEmptyStatusContents();
}
}