com.aptana.ui.handlers.ShowFilteredPreferencePageHandler.java Source code

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Here is the source code for com.aptana.ui.handlers.ShowFilteredPreferencePageHandler.java

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/**
 * Aptana Studio
 * Copyright (c) 2013 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the Eclipse Public License (EPL).
 * Please see the license-epl.html included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ui.handlers;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchCommandConstants;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.dialogs.PreferencesUtil;
import org.eclipse.ui.handlers.HandlerUtil;

public final class ShowFilteredPreferencePageHandler extends AbstractHandler {

    public final Object execute(final ExecutionEvent event) {
        final String preferencePageId = event
                .getParameter(IWorkbenchCommandConstants.WINDOW_PREFERENCES_PARM_PAGEID);
        final IWorkbenchWindow activeWorkbenchWindow = HandlerUtil.getActiveWorkbenchWindow(event);

        final Shell shell;
        if (activeWorkbenchWindow == null) {
            shell = null;
        } else {
            shell = activeWorkbenchWindow.getShell();
        }

        final PreferenceDialog dialog = PreferencesUtil.createPreferenceDialogOn(shell, preferencePageId,
                new String[] { preferencePageId }, null);
        dialog.open();

        return null;
    }

}