com.runwaysdk.manager.view.ObservableAction.java Source code

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Here is the source code for com.runwaysdk.manager.view.ObservableAction.java

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/**
 * Copyright (c) 2015 TerraFrame, Inc. All rights reserved.
 *
 * This file is part of Runway SDK(tm).
 *
 * Runway SDK(tm) 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.
 *
 * Runway SDK(tm) 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 Runway SDK(tm).  If not, see <http://www.gnu.org/licenses/>.
 */
package com.runwaysdk.manager.view;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredViewer;

import com.runwaysdk.dataaccess.EntityDAOIF;
import com.runwaysdk.manager.model.object.EntityObject;
import com.runwaysdk.manager.model.object.IEntityObject;

public class ObservableAction extends Action implements ISelectionChangedListener {
    private StructuredViewer viewer;

    private IAdminModule module;

    private IEventStrategy strategy;

    public ObservableAction(String text, StructuredViewer viewer, IEventStrategy strategy, IAdminModule module) {
        super(text);

        this.viewer = viewer;
        this.module = module;
        this.strategy = strategy;
    }

    public void run() {
        IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();

        if (selection.size() != 1) {
            return;
        }

        Object element = selection.getFirstElement();

        if (element instanceof IEntityObject) {
            strategy.execute(module, (IEntityObject) element);
        } else if (element instanceof EntityDAOIF) {
            strategy.execute(module, EntityObject.get((EntityDAOIF) element));
        }
    }

    public void selectionChanged(SelectionChangedEvent event) {
        this.run();
    }
}