com.nokia.s60ct.actions.EnableLiveValidationDelegate.java Source code

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Here is the source code for com.nokia.s60ct.actions.EnableLiveValidationDelegate.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.actions;

import java.util.Collection;
import java.util.Iterator;

import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EContentAdapter;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IViewActionDelegate;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;

import com.nokia.s60ct.messages.ValidationMessages;

import configurationemf.Feature;
import configurationemf.Setting;

public class EnableLiveValidationDelegate
        implements IActionDelegate2, IWorkbenchWindowActionDelegate, IViewActionDelegate {

    protected static final String MESSAGE_EXCEPTION = ValidationMessages.message_exception;
    protected Shell shell = null;
    protected IViewPart editor = null;
    protected Collection selectedEObjects = null;

    String title = ValidationMessages.EnableLiveValidationDelegate_title;

    public EnableLiveValidationDelegate() {
    }

    public void dispose() {
        // No-op

    }

    public void init(IAction action) {

    }

    public void runWithEvent(IAction action, Event event) {
        run(action);

    }

    public void run(IAction action) {
        for (Iterator i = selectedEObjects.iterator(); i.hasNext();) {
            EObject r = (EObject) i.next();

            if (!resourceHasAdapter(r)) {
                EContentAdapter liveValidationContentAdapter = new LiveValidationContentAdapter(this);
                r.eAdapters().add(liveValidationContentAdapter);
            }
        }

    }

    public void selectionChanged(IAction action, ISelection selection) {
        this.selectedEObjects = null;
        try {
            if (selection instanceof IStructuredSelection) {
                IStructuredSelection structuredSelection = (IStructuredSelection) selection;
                this.selectedEObjects = structuredSelection.toList();
            }
        } catch (Exception e) {
            // Exceptions are not expected
            MessageDialog.openInformation(shell, title, MESSAGE_EXCEPTION);
            throw new RuntimeException(e);
        } finally {
            action.setEnabled((null != selectedEObjects));
        }

        for (Iterator i = selectedEObjects.iterator(); i.hasNext();) {
            Object o = i.next();
            if (!(o instanceof Feature) && !(o instanceof Setting)) {
                action.setEnabled(false);
            } else if (resourceHasAdapter((EObject) o)) {
                action.setEnabled(false);
            }
        }

    }

    public void init(IViewPart view) {
        this.editor = view;
        if (view != null)
            this.shell = view.getSite().getShell();

    }

    private boolean resourceHasAdapter(EObject r) {
        Collection adapters = r.eAdapters();
        for (Iterator j = adapters.iterator(); j.hasNext();) {
            Object o = j.next();
            if (o instanceof LiveValidationContentAdapter) {
                return true;
            }
        }

        return false;
    }

    @Override
    public void init(IWorkbenchWindow window) {

    }
}