gov.nasa.ensemble.common.ui.wizard.OpenWizardDialogAction.java Source code

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Here is the source code for gov.nasa.ensemble.common.ui.wizard.OpenWizardDialogAction.java

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/*******************************************************************************
 * Copyright 2014 United States Government as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package gov.nasa.ensemble.common.ui.wizard;

import gov.nasa.ensemble.common.ui.ide.navigator.EnsembleCommonNavigator;

import java.util.List;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPartSite;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWizard;
import org.eclipse.ui.wizards.IWizardDescriptor;

public class OpenWizardDialogAction extends Action {
    private final IWizardDescriptor descriptor;
    private IWorkbenchWindow workbenchWindow;
    private ISelection selection;

    OpenWizardDialogAction(IWizardDescriptor descriptor, IWorkbenchWindow workbenchWindow, ISelection selection) {
        super(descriptor.getLabel(), descriptor.getImageDescriptor());
        this.workbenchWindow = workbenchWindow;
        this.descriptor = descriptor;
    }

    @Override
    public void run() {
        IWorkbenchWizard createWizard;
        try {
            createWizard = descriptor.createWizard();
            IWorkbench workbench = workbenchWindow.getWorkbench();
            IStructuredSelection sselection = StructuredSelection.EMPTY;
            if (selection instanceof StructuredSelection) {
                sselection = (StructuredSelection) selection;
            } else {
                List<EnsembleCommonNavigator> navigators = EnsembleCommonNavigator
                        .getExistingInstances(EnsembleCommonNavigator.class);
                for (EnsembleCommonNavigator navigator : navigators) {
                    IWorkbenchPartSite site = navigator.getSite();
                    if (site != null) {
                        ISelectionProvider selectionProvider = site.getSelectionProvider();
                        ISelection potentialSelection = selectionProvider.getSelection();
                        if (potentialSelection instanceof IStructuredSelection) {
                            sselection = (IStructuredSelection) potentialSelection;
                            break;
                        }

                    }
                }
            }
            createWizard.init(workbench, sselection);

        } catch (CoreException e) {
            MessageDialog.openError(null, "Error creating wizard", e.getMessage());
            return;
        }
        WizardDialog dialog = new WizardDialog(null, createWizard);
        dialog.open();
    }
}