com.aptana.ui.PerspectiveChangeResetListener.java Source code

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Here is the source code for com.aptana.ui.PerspectiveChangeResetListener.java

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/**
 * Aptana Studio
 * Copyright (c) 2012 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions).
 * Please see the license.html included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ui;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.IPerspectiveDescriptor;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PerspectiveAdapter;
import org.eclipse.ui.progress.UIJob;
import org.osgi.service.prefs.BackingStoreException;

import com.aptana.core.util.EclipseUtil;
import com.aptana.ui.util.UIUtils;

/**
 * @author Nam Le <nle@appcelerator.com>
 *
 */
public class PerspectiveChangeResetListener extends PerspectiveAdapter {
    String pluginId, preferenceId, perspectiveId;
    int perspectiveVersion;

    public PerspectiveChangeResetListener(String perspectiveId, String pluginId, String preferenceId,
            int perspectiveVersion) {
        this.perspectiveId = perspectiveId;
        this.pluginId = pluginId;
        this.preferenceId = preferenceId;
        this.perspectiveVersion = perspectiveVersion;
    }

    public void perspectiveActivated(IWorkbenchPage page, IPerspectiveDescriptor perspective) {
        if (perspectiveId.equals(perspective.getId())) {
            int version = Platform.getPreferencesService().getInt(pluginId, preferenceId, 0, null);
            if (perspectiveVersion > version) {
                resetPerspective(page);
                // we will only ask once regardless if user chose to update the perspective
                IEclipsePreferences prefs = (EclipseUtil.instanceScope()).getNode(pluginId);
                prefs.putInt(preferenceId, perspectiveVersion);
                try {
                    prefs.flush();
                } catch (BackingStoreException e) {
                    // ignores the exception
                }
            }
        }
    }

    private void resetPerspective(final IWorkbenchPage page) {
        UIJob job = new UIJob("Resetting Studio perspective...") //$NON-NLS-1$
        {

            @Override
            public IStatus runInUIThread(IProgressMonitor monitor) {
                if (MessageDialog.openQuestion(UIUtils.getActiveShell(),
                        com.aptana.ui.Messages.UIPlugin_ResetPerspective_Title,
                        com.aptana.ui.Messages.UIPlugin_ResetPerspective_Description)) {
                    page.resetPerspective();
                }
                return Status.OK_STATUS;
            }
        };
        EclipseUtil.setSystemForJob(job);
        job.setPriority(Job.INTERACTIVE);
        job.schedule();
    }
}