net.rim.ejde.internal.propertytester.ProjectPropertyTester.java Source code

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Here is the source code for net.rim.ejde.internal.propertytester.ProjectPropertyTester.java

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/*
* Copyright (c) 2010-2012 Research In Motion Limited. All rights reserved.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License, Version 1.0,
* which accompanies this distribution and is available at
*
* http://www.eclipse.org/legal/epl-v10.html
*
*/
package net.rim.ejde.internal.propertytester;

import java.util.Iterator;

import net.rim.ejde.internal.util.NatureUtils;

import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.ui.IPackagesViewPart;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.PlatformUI;

/**
 * Test if selection contains only IProject and all the projects are BB project.
 *
 * @author dmeng
 *
 */
public class ProjectPropertyTester extends PropertyTester {

    public static final String PROPERTY_NAME = "net.rim.ejde.isBBProject";

    @Override
    public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
        IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
        if (page != null) {
            IViewPart viewPart = page.findView("org.eclipse.jdt.ui.PackageExplorer");
            if (viewPart != null) {
                IPackagesViewPart packageView = (IPackagesViewPart) viewPart;
                ISelection selection = packageView.getSite().getSelectionProvider().getSelection();
                if (selection instanceof StructuredSelection) {
                    StructuredSelection ssel = (StructuredSelection) selection;
                    if (ssel.isEmpty()) {
                        return false;
                    } else {
                        Iterator<Object> iter = ssel.iterator();
                        while (iter.hasNext()) {
                            Object item = iter.next();
                            if (!(item instanceof IJavaProject)) {
                                return false;
                            }
                            if (!NatureUtils.hasBBNature(((IJavaProject) item).getProject())) {
                                return false;
                            }
                        }
                        return true;
                    }
                }
            }
        }
        return false;
    }
}