gov.nasa.ensemble.common.ui.ide.navigator.NewResourceAction.java Source code

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Here is the source code for gov.nasa.ensemble.common.ui.ide.navigator.NewResourceAction.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.ide.navigator;

import org.eclipse.jface.action.IAction;
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.swt.widgets.Shell;
import org.eclipse.ui.INewWizard;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IViewReference;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.navigator.CommonViewer;

public abstract class NewResourceAction implements IWorkbenchWindowActionDelegate {
    @Override
    public void init(IWorkbenchWindow window) {
        // nothing to do
    }

    @Override
    public void dispose() {
        // nothing to do
    }

    @Override
    public void selectionChanged(IAction action, ISelection selection) {
        // don't care
    }

    @Override
    public void run(IAction action) {
        IWorkbench workbench = PlatformUI.getWorkbench();
        INewWizard newResourceWizard = getNewResourceWizard();
        newResourceWizard.init(workbench, getCurrentSelection());
        Shell parent = workbench.getActiveWorkbenchWindow().getShell();
        WizardDialog wizardDialog = new WizardDialog(parent, newResourceWizard);
        wizardDialog.create();
        wizardDialog.open();
    }

    protected abstract INewWizard getNewResourceWizard();

    protected static IStructuredSelection getCurrentSelection() {
        IStructuredSelection structuredSeleciton = StructuredSelection.EMPTY;
        IWorkbench workbench = PlatformUI.getWorkbench();
        IViewReference[] viewReferences = workbench.getActiveWorkbenchWindow().getActivePage().getViewReferences();
        IViewPart viewPart = null;
        for (IViewReference viewReference : viewReferences) {
            IViewPart view = viewReference.getView(false);
            if (view instanceof CommonViewer) {
                viewPart = view;
            }
        }

        if (viewPart != null) {
            ISelectionProvider selectionProvider = viewPart.getSite().getSelectionProvider();
            ISelection selection = selectionProvider.getSelection();
            if (selection instanceof IStructuredSelection) {
                structuredSeleciton = (IStructuredSelection) selection;
            }
        }

        return structuredSeleciton;
    }
}