GenerateIndexCommandHandler.java

package org.bndtools.core.ui.wizards.index;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IContainer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.handlers.HandlerUtil;

public class GenerateIndexCommandHandler extends AbstractHandler {

    @Override
    public Object execute(ExecutionEvent event) throws ExecutionException {
        ISelection selection = HandlerUtil.getCurrentSelection(event);
        if (selection instanceof IStructuredSelection) {
            IStructuredSelection structSel = (IStructuredSelection) selection;
            Object element = structSel.getFirstElement();
            if (element != null && element instanceof IContainer) {
                NewIndexWizard wizard = new NewIndexWizard();
                IWorkbenchWindow workbenchWindow = HandlerUtil.getActiveWorkbenchWindow(event);
                wizard.init(workbenchWindow.getWorkbench(), structSel);

                WizardDialog dialog = new WizardDialog(workbenchWindow.getShell(), wizard);
                dialog.open();
            }
        }
        return null;
    }

}