IActionRedirection.java

/**
 * 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.ui.actions;

import org.whole.lang.bindings.IBindingManager;
import org.whole.lang.ui.editparts.IEntityPart;
import org.whole.lang.ui.viewers.IEntityPartViewer;

/**
 * @author Enrico Persiani
 */
public interface IActionRedirection {
	public boolean isActive();

	public void performCut();
	public void performCopy();
	public void performPaste();

	public void performUndo();
	public void performRedo();
	
	public void performSelectAll();
	
	public static IActionRedirection getActionRedirection(IBindingManager bm) {
		if (!bm.wIsSet("focusEntity"))
			return NullActionRedirection.instance();

		IEntityPartViewer viewer = (IEntityPartViewer) bm.wGetValue("viewer");
		IEntityPart entityPart = viewer.getEditPartRegistry().get(bm.wGet("focusEntity"));
		if (entityPart == null)
			return NullActionRedirection.instance();

		IActionRedirection actionRedirection = (IActionRedirection) entityPart.getAdapter(IActionRedirection.class);
		return actionRedirection != null ? actionRedirection : NullActionRedirection.instance();
	}
}