com.nokia.s60ct.gui.actions.DeleteConfigurationAction.java Source code

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Here is the source code for com.nokia.s60ct.gui.actions.DeleteConfigurationAction.java

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/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
package com.nokia.s60ct.gui.actions;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.command.RemoveCommand;
import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

import configurationemf.ConfigurationemfPackage;
import configurationemf.RootConf;
import configurationemf.util.PrioritisedConfigurationList;

public class DeleteConfigurationAction implements IObjectActionDelegate {

    List<EObject> selectedObjects = new ArrayList<EObject>();

    public DeleteConfigurationAction() {

    }

    public void setActivePart(IAction action, IWorkbenchPart targetPart) {

    }

    public void run(IAction action) {
        for (Iterator<EObject> iterator = selectedObjects.iterator(); iterator.hasNext();) {
            RootConf rootConf = (RootConf) iterator.next();
            EditingDomain editingDomain = AdapterFactoryEditingDomain.getEditingDomainFor(rootConf);
            Object parent = rootConf.getRoot();
            Object feature = ConfigurationemfPackage.eINSTANCE.getConfiguration();
            Command command = RemoveCommand.create(editingDomain, parent, feature, rootConf);
            if (command != null)
                editingDomain.getCommandStack().execute(command);

        }

        PrioritisedConfigurationList prioritisedConfigurationList = PrioritisedConfigurationList
                .getPrioritisedConfigurationList();
        prioritisedConfigurationList.clearPrioritisedConfigurationList();
    }

    public void selectionChanged(IAction action, ISelection selection) {
        selectedObjects.clear();
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structedSelection = (IStructuredSelection) selection;
            Object[] objects = structedSelection.toArray();
            selectToBeRemoved(objects);
        }
        if (!selectedObjects.isEmpty()) {
            action.setEnabled(true);
        } else
            action.setEnabled(false);

    }

    private void selectToBeRemoved(Object[] objs) {
        for (int i = 0; i < objs.length; i++) {
            EObject obj = (EObject) objs[i];
            if (obj instanceof RootConf) {
                RootConf conf = ((RootConf) obj).getRoot();
                if (conf != null && !conf.isReadOnly()) //root configuration cannot be deleted
                    selectedObjects.add(obj);
            }
        }
    }

}