ui/org.eclipse.pde.ui/src/org/eclipse/pde/internal/ui/wizards/tools/ConvertProjectsAction.java

/*******************************************************************************
 *  Copyright (c) 2000, 2015 IBM Corporation and others.
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 * 
 *  Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.pde.internal.ui.wizards.tools;

import java.util.ArrayList;
import java.util.Vector;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IProject;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.pde.internal.core.natures.PDE;
import org.eclipse.pde.internal.ui.PDEPlugin;
import org.eclipse.pde.internal.ui.PDEUIMessages;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;

public class ConvertProjectsAction implements IObjectActionDelegate {

	private ISelection fSelection;

	@Override
	public void setActivePart(IAction action, IWorkbenchPart targetPart) {
	}

	@Override
	public void run(IAction action) {
		IProject[] unconverted = getUnconvertedProjects();
		if (unconverted.length == 0) {
			MessageDialog.openInformation(this.getDisplay().getActiveShell(), PDEUIMessages.ConvertProjectsAction_find, PDEUIMessages.ConvertProjectsAction_none); // 
			return;
		}

		if (fSelection instanceof IStructuredSelection) {
			Object[] elems = ((IStructuredSelection) fSelection).toArray();
			Vector<IProject> initialSelection = new Vector<>(elems.length);

			for (int i = 0; i < elems.length; i++) {
				Object elem = elems[i];
				IProject project = null;

				if (elem instanceof IFile) {
					IFile file = (IFile) elem;
					project = file.getProject();
				} else if (elem instanceof IProject) {
					project = (IProject) elem;
				} else if (elem instanceof IJavaProject) {
					project = ((IJavaProject) elem).getProject();
				}
				if (project != null)
					initialSelection.add(project);
			}

			ConvertedProjectWizard wizard = new ConvertedProjectWizard(unconverted, initialSelection);

			final Display display = getDisplay();
			final WizardDialog dialog = new WizardDialog(display.getActiveShell(), wizard);
			BusyIndicator.showWhile(display, new Runnable() {
				@Override
				public void run() {
					dialog.open();
				}
			});
		}
	}

	@Override
	public void selectionChanged(IAction action, ISelection selection) {
		fSelection = selection;
	}

	public Display getDisplay() {
		Display display = Display.getCurrent();
		if (display == null)
			display = Display.getDefault();
		return display;
	}

	private IProject[] getUnconvertedProjects() {
		ArrayList<IProject> unconverted = new ArrayList<>();
		IProject[] projects = PDEPlugin.getWorkspace().getRoot().getProjects();
		for (int i = 0; i < projects.length; i++) {
			if (projects[i].isOpen() && !PDE.hasPluginNature(projects[i]) && !PDE.hasFeatureNature(projects[i]) && !PDE.hasUpdateSiteNature(projects[i]) && projects[i].getName().indexOf('%') == -1 && projects[i].getLocation().toString().indexOf('%') == -1)
				unconverted.add(projects[i]);
		}
		return unconverted.toArray(new IProject[unconverted.size()]);
	}
}